CN214788353U - Oil pressure compensator - Google Patents
Oil pressure compensator Download PDFInfo
- Publication number
- CN214788353U CN214788353U CN202121218617.2U CN202121218617U CN214788353U CN 214788353 U CN214788353 U CN 214788353U CN 202121218617 U CN202121218617 U CN 202121218617U CN 214788353 U CN214788353 U CN 214788353U
- Authority
- CN
- China
- Prior art keywords
- oil
- oil bag
- base
- cover
- bag
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Sealing Devices (AREA)
Abstract
The utility model discloses an oil pressure compensator, which comprises a base; one end of the oil pipe plug is detachably connected with the base, and the other end of the oil pipe plug is connected with the oil pipe fixing sleeve; one end of the sealing connector is detachably connected with the base; the micro switch is fixedly arranged on the base and is electrically connected with the sealing connector; the oil bag gland is fixedly arranged on the inner side of the base; the outlet end of the overlapped oil bag is clamped between the base and the oil bag gland; the oil bag cover is arranged on the stacked oil bag; two ends of the sliding rod are respectively fixedly connected with the base and the oil bag cover; the fixed key is detachably connected with the oil bag cover; the high-strength rubber band is provided with a plurality of rubber bands, and two ends of the high-strength rubber band are respectively fixedly connected with the oil bag gland and the oil bag cover. The utility model discloses an oil hydraulic pressure compensator, which extrudes oil liquid by a stack-shaped oil bag and then carries out real-time oil liquid compensation on equipment through an oil pipe; when the compensator does not work, the lower end of the fixed key is in threaded connection with the oil bag cover, the oil bag cover is pulled to the position where the tensile force of the overlapped oil bag is eliminated through hand pulling, and oil filling operation on the compensator can be carried out.
Description
Technical Field
The utility model relates to an underwater robot technical field, more specifically the utility model relates to an oil pressure force compensator that says so relates to.
Background
An underwater robot is also called an unmanned remote control submersible vehicle and is a limit operation robot working underwater. Underwater robots have become an important tool for the development of the ocean because of the harsh and dangerous underwater environment and the limited depth of human diving. The unmanned remote control submersible mainly comprises: the cable remote-control submersible is divided into an underwater self-propelled type, a towed type and a type capable of climbing on a seabed structure.
At present, the underwater robot is an industry with great technical difficulty and great market potential. The technical development of China in the industry is in a quite laggard state, and particularly the diving depth is always a difficult problem. The compensator used at the present international stage is inconvenient to use and complex in structure, but cannot achieve the required function of the compensator. For example, the hydraulic control system which can only be added with a throttle valve, a sensor and the like operates at present, the efficiency is low, the cost is high, and the like. The conventional compensator is absolutely equal in internal pressure and external pressure, and when the external environment is instantaneously changed, external pressure is instantaneously increased to cause equipment collapse.
Therefore, how to provide an oil pressure compensator is a problem that needs to be solved by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides an oil pressure force compensator can be used for underwater robot's fluid compensation, guarantees the real-time balance of external pressure in the underwater robot to realize equipment protection.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
an oil pressure compensator comprises a base, an oil pipe fixing sleeve, an oil pipe plug, a microswitch, a sealing connector, an oil bag gland, a sliding rod, a stacked oil bag, a split washer, an oil bag cover, a fixed key and a high-strength rubber band; the base is a cylinder, a plurality of stepped cylindrical through holes are formed in the position, close to the outer edge, of the base, and a first mounting hole and a second mounting hole are formed in the middle of the base; the direction of the central shaft of the oil pipe plug is a through hole, one end of the oil pipe plug is detachably connected with the first mounting hole of the base, and the other end of the oil pipe plug is in threaded connection with the oil pipe fixing sleeve; the axis of the sealing connector is of an encapsulating structure, and one end of the sealing connector is detachably connected with the second mounting hole of the base; the micro switch is fixedly arranged on one side of the base, which is far away from the oil pipe fixing sleeve, and is electrically connected with the sealing connector; the oil bag gland is of a circular ring column structure and is fixedly arranged on the inner side of the base; the outlet end of the stacked oil bag is provided with a raised ring lug which is clamped between the base and the oil bag gland; the oil bag cover is arranged on one side of the stacked oil bag, which is far away from the base, the outer edge of the oil bag cover is provided with a plurality of through holes, and the middle part of the oil bag cover is provided with a key installation groove; three circular grooves are formed in the sliding rod, split retainer rings are arranged in the circular grooves, and two ends of the sliding rod respectively penetrate through the stepped cylindrical through hole of the base and the through hole of the oil bag cover and are correspondingly and fixedly connected with the stepped cylindrical through hole of the base; the fixed key is detachably connected in the key mounting groove; the high-strength rubber band is provided with a plurality of rubber bands, and two ends of the high-strength rubber band are respectively fixedly connected with the oil bag gland and the oil bag cover.
The utility model discloses an oil hydraulic pressure compensator, during operation, the fixed key is taken off, releases the pulling force of the rubber band that excels in, and the rubber band that excels in links to each other with oil bag gland and oil bag lid through both ends, and the high-strength pulling force of the rubber band that excels in can drive the oil bag lid to move, and the oil bag lid can produce external pressure to the oil bag of fold shape along the axial displacement of slide bar, and the oil bag of fold shape extrudes fluid then carries out fluid real-time compensation to equipment through oil pipe; when the compensator does not work, the lower end of the fixed key is in threaded connection with the oil bag cover, the oil bag cover is pulled to the position where the tensile force of the overlapped oil bag is eliminated through hand pulling, and at the moment, oil filling operation on the compensator can be carried out.
Preferably, the fixing cover is further included, four through holes are formed in the outer edge of the fixing cover, the top end of the sliding rod penetrates through the through holes, and the circular grooves of the sliding rod are clamped by the split retainer rings at the two end faces of the fixing cover.
Adopt above-mentioned technical scheme's beneficial effect be, fixed lid can realize fixing and direction to the slide bar.
Preferably, the outer side of the center of the fixed cover is provided with a circular groove, the inner side of the fixed cover is provided with a square groove, and the circular groove is communicated with the square groove.
Adopt above-mentioned technical scheme's beneficial effect to, pull the hand oil bag lid to the pulling force department of eliminating the overlapping shape oil bag, through axial rotation with the fixed key cuboid card on the circular recess of fixed lid.
Preferably, the middle part of the oil pipe plug is of a hexagonal prism structure, external threads are arranged on two sides of the oil pipe plug, and a sealing ring is arranged at the joint of the oil pipe plug and the base.
The oil pipe plug has the advantages that the hexagonal prism structure is convenient for the spanner to exert force to realize the tight fit between the oil pipe plug and the base; the front and back external threads of the oil pipe plug are respectively matched with the internal threads of the oil pipe fixing sleeve and the base, so that the three components are in threaded connection.
Preferably, still include the protecting wire net, the one end of protecting wire net sets up between base and oil bag gland, and the inboard of the other end is propped up through fixed lid.
Adopt above-mentioned technical scheme's beneficial effect is, the guard net can play the guard action to the compensator.
Preferably, the top end of the fixed key is provided with a circular through hole.
Adopt above-mentioned technical scheme's beneficial effect is that, the setting of circular through-hole is convenient for the finger to pass.
Preferably, the stacked oil bag is made of rubber materials, and the distance between the oil bag pressing cover and the base is smaller than the wall thickness of the stacked oil bag.
The oil bag sealing device has the advantages that due to the fact that the overlapped oil bag is arranged, axial stretching and compression of the oil bag are facilitated, the protruding ring lugs are arranged at the outlet end of the overlapped oil bag and are pressed between the oil bag pressing cover and the base, and fixing and sealing of the overlapped oil bag can be achieved through elastic deformation of rubber.
Preferably, the high-strength rubber band is made of rubber materials and is provided with a metal buckle for locking and breaking; protruding hole sites are arranged on the oil bag gland and the oil bag cover, and the high-strength rubber band penetrates through the corresponding protruding clamping positions to form a closed-loop structure.
The oil bag has the beneficial effects that the stretching of the overlapped oil bag is realized by utilizing the elasticity of the high-strength rubber band.
Preferably, the wall of the protecting net is provided with dense through holes.
The beneficial effects who takes above-mentioned technical scheme are that, set up the through-hole of equal density on the protecting wire net wall, guarantee to fold shape oil pocket and can with outside waters direct contact, simultaneously, the trompil structure of protecting wire net can effectively withstand complicated waters and to folding the skin of shape oil pocket bad, plays the guard action to the compensator.
Preferably, still include the sliding sleeve, the sliding sleeve is hollow cylindric, is provided with annular bulge on the outer wall, and the sliding sleeve is fixed in the recess of oil bag lid.
The oil bag cover sliding sleeve has the beneficial effects that the sliding sleeve adopts a low friction coefficient, and the oil bag cover can axially slide in a low friction manner.
According to the technical scheme, compare with prior art, the utility model discloses a hydraulic pressure compensator, small light in weight has the alert of lack of oil and fluid offset big function, can use in underwater robot's fluid real-time compensation for a long time, guarantees that underwater robot's internal and external pressure in the environment under water is balanced, plays certain protection to underwater robot.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural diagram provided by the present invention.
Fig. 2 is a schematic diagram of the oil shortage alarm and oil pumping and filling structure of the present invention.
Fig. 3 is a schematic structural diagram of a pressure working part provided by the present invention.
Fig. 4 is a schematic structural diagram of a pressure working portion according to the present invention.
Fig. 5 is a schematic view of the working structure of the fixed key of the present invention.
Wherein the reference symbols are:
1-sealing ring, 2-oil pipe fixing sleeve, 3-oil pipe plug, 4-microswitch, 5-sealing connector, 6-base, 7-oil bag gland, 8-protective net, 9-sliding rod, 10-stacked oil bag, 11-sliding sleeve, 12-opening retainer ring, 13-oil bag cover, 14-fixing key, 15-fixing cover, 16-high-strength rubber band, 17-stepped cylindrical through hole, 18-first mounting hole, 19-second mounting hole and 20-key mounting groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The embodiment of the utility model discloses oil hydraulic pressure force compensator, this patent includes sealing washer 1, the fixed cover 2 of oil pipe, oil pipe plug 3, micro-gap switch 4, sealing connector 5, base 6, oil bag gland 7, protecting wire net 8, slide bar 9, fold shape oil bag 10, sliding sleeve 11, split ring 12, oil bag lid 13, fixed key 14, fixed lid 15, the rubber band 16 that excels in.
The sealing ring 1 is arranged in a sealing groove of the oil pipe plug 3, and sealing between the oil pipe plug 3 and the base 6 is realized through medium pressure and deformation of the sealing ring 1.
The fixed cover 2 surfaces of oil pipe are the annular knurl design, the antiskid of being convenient for, and its inside anterior segment is smooth concave-convex structure, and the back end is equipped with the internal thread, and is in the same place through threaded connection between the oil pipe plug 3, and the fixed cover 2 of oil pipe can die the oil pipe card between the two with the unsmooth cooperation of 3 front ends of oil pipe plug, realizes fixed and sealed between oil pipe and the oil pipe plug 3 through oil pipe's deformation.
3 interlude of oil pipe plug is hexagonal prism structure and hexagonal prism right-hand member and is equipped with the seal groove, and hexagonal prism both sides are equipped with the external screw thread, and wherein anterior segment head surface is smooth concave-convex structure, and 3 center pin directions of oil pipe plug are the through-hole, and two sections external screw threads around 3 of oil pipe plug respectively with the internal screw-thread fit of the fixed cover 2 of oil pipe, base 6, realize the threaded connection between the three part, and hexagonal prism structure is convenient for the spanner and is concerned with the inseparable cooperation between realization oil pipe plug 3 and the base 6.
5 axle centers of sealed connector are embedment structure, can guarantee when realizing both ends signal line intercommunication sealed, and 5 outward appearance anterior segments of sealed connector are hexagonal prism structure, and hexagonal prism side is equipped with the seal groove and seals with 1 cooperation of sealing washer, and 5 outward appearance back end of sealed connector are helicitic texture.
The outer edge of the base 6 is provided with four stepped cylindrical through holes, the stepped cylindrical through holes and a stepped platform at the bottom of the sliding rod 9 are mechanically matched to limit the sliding rod 9, two threaded ports are arranged in the middle of the base 6, one threaded port is matched with the sealing connector 5 and used for a signal outgoing line of the microswitch 4, and the other threaded port is matched with the oil pipe plug 3 and used for pumping and filling oil, so that the oil shortage alarm and oil compensation functions of the compensator are realized.
The oil bag gland 7 is of a circular column structure, 4 uniformly distributed convex handle hole positions are arranged at the position close to the outer edge, a sealing groove is formed in the position close to the inner circle of the front end of the oil bag gland, the oil bag gland 7 is fixed on the base 6 through screws, the oil bag gland 7 can compress the ring lug bulges of the overlapped oil bag 10 at the moment, and the overlapped oil bag 10 is fixed and sealed through the ring lug deformation of the overlapped oil bag 10.
Open on the 8 walls of protecting wire net and have the through-hole of homogeneous density, guarantee that fold shape oil pocket 10 can with outside waters direct contact, the trompil structure of protecting wire net 8 can effectively withstand the destruction of complicated waters to folding shape oil pocket 10 simultaneously, plays the guard action to the compensator, and in addition, 8 bottoms of protecting wire net are compressed tightly by base 6 and oil pocket gland 7, and fixed cover 15 props up in 8 tops of protecting wire net, realizes the fixed of protecting wire net 8.
The sliding rod 9 is in a stepped cylindrical shape, the whole body of the sliding rod 9 is smooth, and three circular grooves are formed in the sliding rod and used for positioning and clamping the split retainer ring 12.
The overlapped oil bag 10 is made of rubber materials and is of an overlapped structure as a whole, so that the overlapped oil bag 10 is convenient to axially stretch and compress, a protruding ring lug is arranged at the outlet end of the overlapped oil bag 10, in addition, the distance between the oil bag gland 7 and the base 6 is smaller than the wall thickness of the overlapped oil bag 10, and the fixation and the sealing of the overlapped oil bag 10 can be realized by utilizing the elastic deformation of the rubber.
The sliding sleeve 11 is made of a material with a low friction coefficient, is integrally cylindrical, and is provided with an annular bulge on the outer wall, the annular bulge on the outer circle of the sliding sleeve 11 is matched with the groove of the oil bag cover 13, so that the sliding sleeve 11 is fixed on the oil bag cover 13, and the inner hole of the sliding sleeve 11 is matched with the outer circle of the sliding rod 9, so that the axial low-friction sliding of the oil bag cover 13 can be realized.
The split retainer rings 12 are clamped in the clamping grooves of the sliding rods 9, so that the sliding rods 9 can be fixed with the oil bag gland 7 and the base 6, the split retainer rings 12 on the two end faces of the fixed cover 15 can fix the position of the fixed cover 15, and meanwhile, the overall strength of the compensator is improved.
Four through holes are formed near the outer edge of the oil bag cover 13, grooves are formed in the through holes, 4 uniformly distributed convex handle hole positions are formed in the position, close to the outer edge, of the side of the fixing cover 15, smooth grooves are formed in the end face of the oil bag side of the oil bag cover 13, radial deviation of the overlapped oil bag 10 during working can be effectively reduced, a threaded hole formed in a small boss in the center of the end face of the top of the oil bag cover 13 is in threaded connection with the lower end of the fixing key 14, and fixing between the oil bag cover 13 and the fixing key 14 is achieved.
The outer edge of the fixed cover 15 is provided with 4 through holes, the diameter of each through hole is slightly larger than the diameter of each sliding rod 9, the top ends of the sliding rods 9 penetrate through the four through holes, the two grooves of the sliding rods 9 are clamped on the two end faces of the fixed cover 15 through split collars 12, the fixed cover 15 and the four sliding rods 9 are fixed, a special groove structure is arranged in the center of the fixed cover 15, the upper end of the fixed cover is a circular groove, the lower end of the fixed cover is a square groove, and the two grooves are communicated.
Fixed key 14 is whole to be the key form, and the top is equipped with circular through-hole, and the finger of being convenient for passes, draws fixed key 14 for the manual work and provides the impetus, and fixed key 14 is close to the lower extreme position and is equipped with the cuboid structure, and the length and width of this cuboid slightly is less than the length and width of fixed lid 15 middle recess, and is unusual, and the length and width of fixed key 14 lower extreme cuboid is greater than the width of fixed lid 15 middle recess, and fixed key 14 bottom is the external screw thread structure, with the cooperation of 13 middle internal thread structures of oil bag lid.
The high-strength rubber band 16 is made of special rubber, and a locking and disconnecting metal buckle is arranged on the closed-loop structure of the high-strength rubber band 16, so that the high-strength rubber band 16 can conveniently penetrate through the protruding hole positions arranged on the oil bag gland 7 and the oil bag cover 13.
The utility model discloses the oil hydraulic pressure force compensator during operation of always opening, fixed key 14 takes out the pulling force of the rubber band 16 that excels in of release from the compensator, four rubber bands 16 that excel in pass through both ends and oil bag gland 7, the evagination handle hole site of oil bag lid 13 links to each other, the high tensile force of the rubber band 16 that excels in can drive oil bag lid 13, oil bag lid 13 can produce external pressure to folding shape oil bag 10 along four slide bar 9's axial displacement, fold shape oil bag 10 and then carry out the real-time compensation of fluid to equipment through oil pipe to fluid extrusion.
When the oil hydraulic pressure compensator does not work, 14 lower extremes of fixed key and oil bag lid 13 threaded connection, fixed lid 15 is passed to the centre, pulls oil bag lid 13 to the pulling force department of eliminating to folding shape oil bag 10 through the hand power, blocks 14 cuboid cards of fixed key on 15 circular recess of fixed lid through axial rotation, and is unusual, can carry out the oil charge operation to the compensator this moment.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. An oil pressure compensator is characterized by comprising a base (6), an oil pipe fixing sleeve (2), an oil pipe plug (3), a microswitch (4), a sealing connector (5), an oil bag gland (7), a slide bar (9), a stacked oil bag (10), an opening retainer ring (12), an oil bag cover (13), a fixed key (14) and a high-strength rubber band (16); the base (6) is a cylinder, a plurality of stepped cylinder through holes (17) are formed in the position, close to the outer edge, of the base, and a first mounting hole (18) and a second mounting hole (19) are formed in the middle of the base; the central axis direction of the oil pipe plug (3) is a through hole, one end of the oil pipe plug is detachably connected to the first mounting hole (18) of the base (6), and the other end of the oil pipe plug is in threaded connection with the oil pipe fixing sleeve (2); the axis of the sealing connector (5) is of an encapsulating structure, and one end of the sealing connector is detachably connected to the second mounting hole (19) of the base (6); the microswitch (4) is fixedly arranged on one side of the base (6) far away from the oil pipe fixing sleeve (2) and is electrically connected with the sealing connector (5);
the oil bag gland (7) is of a circular ring column structure and is fixedly arranged on the inner side of the base (6); the outlet end of the folded oil bag (10) is provided with a raised ring lug which is clamped between the base (6) and the oil bag gland (7); the oil bag cover (13) is arranged on one side of the stacked oil bag (10) far away from the base (6), the outer edge of the oil bag cover is provided with a plurality of through holes, and the middle part of the oil bag cover is provided with a key installation groove (20); three circular grooves are formed in the sliding rod, split retainer rings (12) are arranged in the circular grooves, and two ends of the sliding rod (9) penetrate through a stepped cylindrical through hole (17) of the base and a through hole of the oil bag cover (13) respectively and are correspondingly and fixedly connected; the fixed key (14) is detachably connected in the key installation groove (20); the high-strength rubber band (16) is provided with a plurality of rubber bands, and two ends of the high-strength rubber band are respectively and fixedly connected with the oil bag gland (7) and the oil bag cover (13).
2. The oil hydraulic pressure compensator according to claim 1, characterized by further comprising a fixed cover (15), wherein four through holes are formed in the outer edge of the fixed cover (15), the top end of the sliding rod (9) penetrates through the through holes, and the circular grooves of the sliding rod are clamped by split retainer rings (12) at two end faces of the fixed cover (15).
3. The oil hydraulic pressure compensator according to claim 2, characterized in that the fixed cover (15) is provided with a circular groove at the outer side of the center and a square groove at the inner side, and the circular groove and the square groove are communicated.
4. The oil hydraulic pressure compensator according to claim 1, characterized in that the middle part of the oil pipe plug (3) is of a hexagonal prism structure, the two sides of the oil pipe plug are provided with external threads, and the joint of the oil pipe plug (3) and the base (6) is provided with the sealing ring (1).
5. The oil hydraulic pressure compensator according to claim 2, characterized by further comprising a protective net (8), wherein one end of the protective net (8) is arranged between the base (6) and the oil bag pressing cover (7), and the inner side of the other end is supported by the fixing cover (15).
6. The oil hydraulic pressure compensator of claim 1, characterized in that the top end of the fixed key (14) is provided with a circular through hole.
7. The oil hydraulic pressure compensator according to claim 1, characterized in that the stack-shaped oil bag (10) is made of rubber, and the distance between the oil bag gland (7) and the base (6) is smaller than the wall thickness of the stack-shaped oil bag (10).
8. The oil hydraulic pressure compensator of claim 1, wherein the high-strength rubber band is made of rubber and is provided with a metal buckle for locking and disconnecting; protruding hole sites are arranged on the oil bag pressing cover (7) and the oil bag cover (13), and the high-strength rubber band (16) penetrates through the corresponding protruding clamping positions to form a closed-loop structure.
9. An oil hydraulic pressure compensator according to claim 5, characterized in that the protecting net (8) is provided with through holes in its wall which are uniformly dense.
10. The oil hydraulic pressure compensator according to claim 1, further comprising a sliding sleeve (11), wherein the sliding sleeve (11) is hollow and cylindrical, an annular protrusion is arranged on the outer wall of the sliding sleeve (11), and the sliding sleeve (11) is fixed on a groove of the oil bag cover (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121218617.2U CN214788353U (en) | 2021-06-02 | 2021-06-02 | Oil pressure compensator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121218617.2U CN214788353U (en) | 2021-06-02 | 2021-06-02 | Oil pressure compensator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214788353U true CN214788353U (en) | 2021-11-19 |
Family
ID=78699989
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121218617.2U Active CN214788353U (en) | 2021-06-02 | 2021-06-02 | Oil pressure compensator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214788353U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113217506A (en) * | 2021-06-02 | 2021-08-06 | 河北工业大学 | Oil pressure compensator |
-
2021
- 2021-06-02 CN CN202121218617.2U patent/CN214788353U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113217506A (en) * | 2021-06-02 | 2021-08-06 | 河北工业大学 | Oil pressure compensator |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN214788353U (en) | Oil pressure compensator | |
| CN103395072B (en) | A kind of hydraulic artificial muscle | |
| CN112467681B (en) | Intermediate head protective structure of power supply sealed cable | |
| CN203371556U (en) | Water pressure artificial muscle | |
| CN113217506A (en) | Oil pressure compensator | |
| CN210829158U (en) | Controllable well plugging tool | |
| CN106394834B (en) | Submersible cable disengaging gear | |
| CN110486442A (en) | A kind of differential lock and axle assembly | |
| CN203770889U (en) | Hydraulic control underwater pipeline butt-jointing and locking device | |
| CN215870718U (en) | Coaxial cable tail protective sleeve | |
| CN211491307U (en) | Portable locking tool | |
| CN204546527U (en) | Underwater electric manipulator | |
| CN211501170U (en) | Miniature hydraulic cylinder | |
| CN113013676A (en) | High boats and ships bank electricity connecting device of security | |
| CN211618040U (en) | Movable joint connecting device of underwater diving suit | |
| CN208248430U (en) | A kind of pressure-resistant storehouse capping locking device for seabed monitoring platform | |
| CN201133938Y (en) | Amphibian geophone package shell | |
| CN208757611U (en) | A kind of hyperbaric chamber for the test of umbilical cables fittings | |
| CN107192573B (en) | Underground visual sampling device for power industry | |
| CN216009108U (en) | Rear vertical oil cylinder for crane | |
| CN221258003U (en) | Anti-loosening threaded quick connector | |
| CN105697802B (en) | A kind of underwater fluid gathers valve | |
| CN2479199Y (en) | Multiple-circulation valve | |
| CN213072337U (en) | Use electric putter under water | |
| CN220706719U (en) | Oil-resistant pipe connector convenient to assemble |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |