CN113120734B - Mine tank baffle capable of ensuring synchronous sliding of two sides - Google Patents
Mine tank baffle capable of ensuring synchronous sliding of two sides Download PDFInfo
- Publication number
- CN113120734B CN113120734B CN202110436354.0A CN202110436354A CN113120734B CN 113120734 B CN113120734 B CN 113120734B CN 202110436354 A CN202110436354 A CN 202110436354A CN 113120734 B CN113120734 B CN 113120734B
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- fixedly connected
- cavity
- tank
- cage
- air
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- 230000001360 synchronised effect Effects 0.000 title claims abstract description 12
- 230000000903 blocking effect Effects 0.000 claims abstract description 16
- 238000006073 displacement reaction Methods 0.000 claims abstract description 4
- 238000001514 detection method Methods 0.000 claims description 24
- 239000004576 sand Substances 0.000 abstract description 4
- 238000005065 mining Methods 0.000 abstract description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B17/00—Hoistway equipment
- B66B17/34—Safe lift clips; Keps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B19/00—Mining-hoist operation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B19/00—Mining-hoist operation
- B66B19/06—Applications of signalling devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/0006—Monitoring devices or performance analysers
- B66B5/0018—Devices monitoring the operating condition of the elevator system
- B66B5/0031—Devices monitoring the operating condition of the elevator system for safety reasons
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B7/00—Other common features of elevators
- B66B7/02—Guideways; Guides
Landscapes
- Filling Or Discharging Of Gas Storage Vessels (AREA)
- Actuator (AREA)
Abstract
The invention relates to the technical field related to mining machinery, in particular to a mine tank stopper capable of ensuring synchronous sliding at two sides, which comprises a base arranged in a shaft, wherein the bases at two sides are fixedly connected with tank cage sliding rails at two sides respectively, a tank stopper mechanism for blocking the tank cage when the tank cage is lifted is arranged on the base, the tank stopper mechanism comprises a tank stopper sliding block which is slidably arranged on the base, an air cavity is arranged in the tank stopper sliding block, a pneumatic mechanism for providing power for the tank stopper mechanism is arranged in the air cavity, a compensation cavity is arranged in the end wall at one side of the base, and a compensation device for realizing displacement compensation when the tank stopper sliding rail at one side is blocked is arranged in the compensation cavity. The invention can ensure that the tank baffles at two sides can synchronously slide when the tank baffle slide way is blocked by fine sundries such as sand and the like, can not cause cage deflection due to the blockage of one side slide way, and ensures the safety of cage lifting work.
Description
Technical Field
The invention relates to the technical field related to mining machinery, in particular to a mine tank stop capable of ensuring synchronous sliding at two sides.
Background
The cage is a common machine in mining machinery, which is used for limiting the cage to stay at a specified position on one hand and preventing the occurrence of sports car accidents on the other hand, and is often used together with equipment such as the cage, a dispatching winch and the like.
Because the tank baffle slideway is narrower, when gangue and yellow sand are lifted, tiny sundries such as scattered gangue or yellow sand are extremely easy to block the tank baffle slideway, and two sliding blocks can not be synchronous when the tank baffle is slid, so that the cage is deviated, faults such as derailment of a car arrester, disassembly of the sliding blocks and a connecting rod and the like are easy to occur under the impact of a mine car, shaft equipment is even crushed, potential safety hazards are buried or safety accidents are caused, and therefore, the device capable of ensuring synchronous sliding of the two sides of the tank baffle is very necessary to design.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides the mine cage stop capable of ensuring synchronous sliding at two sides, which can ensure that the cage stops at two sides can synchronously slide when the cage stop slide way is blocked by tiny sundries such as sand stone and the like, can not cause cage deflection due to the blocking of one side slide way, and ensures the safety of cage lifting work.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides a can guarantee both sides synchronous slip's mine jar fender, includes the base in locating the pit shaft, both sides the base respectively with the cage slide rail fixed connection of both sides, be equipped with on the base and be used for blockking the jar of cage when the cage promotes and keep off the mechanism, the jar keeps off the mechanism including the jar that slidable was equipped with on the base keeps off the slider, be equipped with the air cavity in the jar keeps off the slider, be equipped with in the pit shaft and be used for the pneumatic mechanism that the jar kept off the mechanism provided power, be equipped with the compensation chamber in the end wall of base one side, be equipped with the compensation device who is used for realizing displacement compensation when one side jar keeps off the slide and blocks in the compensation chamber.
Preferably, the tank baffle seat is fixedly connected to the upper end wall and the lower end wall of the tank baffle sliding block, the tank baffle seat on the upper side is rotationally connected with a tank baffle sliding shaft, a spur gear is fixedly connected to the tank baffle sliding shaft, a spring seat is fixedly connected to the tank baffle sliding shaft, a stop block is slidably connected to the tank baffle sliding shaft, and a tank baffle spring is fixedly connected between the stop block and the spring seat.
Preferably, the spring seat is rotatably connected to the lower tank stopper seat.
Preferably, the pneumatic mechanism comprises an air pump fixedly connected with an end wall on one side of the shaft, an air outlet pipe fixedly connected with end walls on two sides of the air pump, an air inlet pipe fixedly connected with an air cavity and an air transmission hose, a plurality of pipe clamps fixedly connected with the air outlet pipe and fixedly connected with the end wall of the shaft, a piston slidably connected with the air cavity, a pneumatic slide rod fixedly connected with the piston, a rack fixedly connected with the pneumatic slide rod and a pneumatic spring fixedly connected with the end wall on the lower side of the air cavity.
Preferably, the rack is meshed with the spur gear; the gas transmission hose passes through the inside of the plurality of pipe clamps; the piston is slidably connected in the air cavity.
Preferably, the compensation device comprises a detection cavity arranged in the cage slide rail, a detection slide plate which is slidably connected in the detection cavity, a plurality of detection springs which are fixedly connected between the detection slide plate and the inner side end wall of the detection cavity, a pressure sensor which is fixedly connected with the inner side end wall of the detection cavity, a compensation slide rod which is fixedly connected with the inner side end wall of the compensation cavity, a compensation spring which is fixedly connected with the end wall of the compensation cavity, a limiting plate which is slidably connected with the base, a limiting slide cavity which is arranged in the base, a clamping strip which is slidably connected with the limiting slide cavity, a limiting spring which is fixedly connected with the end wall on one side of the limiting slide cavity, and an electromagnet which is fixedly connected with the end wall on one side of the limiting slide cavity.
Preferably, the compensation spring is in an extended state; the limit spring is in a compressed state.
Preferably, said pressure sensor is in telecommunications connection with said electromagnet on the opposite side; one end of the clamping strip extends into a groove arranged on the end wall of one side of the limiting plate; the limiting plate is fixedly connected with the tank baffle sliding block; under normal conditions, the clamping strip prevents the limiting plate from sliding, and the limiting plate limits the tank stop sliding block from sliding.
The device has the beneficial effects that 1, the compensation mechanism is arranged in the device, so that the blocking of the tank stopper slideway on one side can be timely detected, and then the tank stopper on the blocked side is controlled to slide downwards, thereby avoiding the situation that the tank cage is deviated due to the fact that one side of the tank cage cannot slide downwards, preventing the tank stopper from being damaged by collision and derailment, and ensuring that the tank cage has better safety during lifting operation.
Drawings
FIG. 1 is a schematic view of a mine tank stop capable of ensuring synchronous sliding on both sides;
FIG. 2 is an enlarged schematic view of FIG. 1 at A;
FIG. 3 is a schematic view of the B-B direction of FIG. 2;
FIG. 4 is a schematic view of the direction C-C of FIG. 2;
FIG. 5 is an enlarged schematic view of FIG. 3 at D;
FIG. 6 is a schematic view of the E-E direction of FIG. 1;
FIG. 7 is an enlarged schematic view of FIG. 1 at F;
FIG. 8 is an isometric schematic of the device;
the device comprises a tank stop mechanism, 101, a base, 102, a tank stop sliding block, 103, a tank stop seat, 104, a tank stop sliding shaft, 105, a spur gear, 106, a stop block, 107, a tank stop spring, 108, a spring seat, 2, a pneumatic mechanism, 201, an air pump, 202, an air outlet pipe, 203, an air hose, 204, a pipe clamp, 205, an air inlet pipe, 206, an air cavity, 207, a piston, 208, a pneumatic sliding rod, 209, a pneumatic spring, 210, a rack, 3, a compensating device, 301, a detecting cavity, 302, a detecting sliding plate, 303, a detecting spring, 304, a pressure sensor, 305, a compensating cavity, 306, a compensating sliding rod, 307, a compensating spring, 308, a limiting plate, 309, a clamping strip, 310, a limiting sliding cavity, 311, an electromagnet, 312 and a limiting spring.
Description of the embodiments
The technical scheme of the invention is further described below by the specific embodiments with reference to the accompanying drawings.
As shown in fig. 1-8, a mine tank stopper capable of ensuring synchronous sliding at two sides comprises a base 101 arranged in a shaft, wherein the base 101 at two sides is fixedly connected with tank cage sliding rails at two sides respectively, a tank stopper mechanism 1 for blocking a tank cage when the tank cage is lifted is arranged on the base 101, the tank stopper mechanism 1 comprises a tank stopper sliding block 102 slidably arranged on the base 101, an air cavity 206 is arranged in the tank stopper sliding block 102, a pneumatic mechanism 2 for providing power for the tank stopper mechanism 1 is arranged in the shaft, a compensation cavity 305 is arranged in an end wall at one side of the base 101, and a compensation device 3 for realizing displacement compensation when the tank stopper sliding rail at one side is blocked is arranged in the compensation cavity 305; when the cage is lifted, a worker can control a stop block 106 arranged in the cage blocking mechanism 1 to rotate through the pneumatic mechanism 2, and when the stop block 106 rotates to be in contact with the cage sliding rail, the cage can be blocked from moving, so that the function of cage blocking is realized; when one side of the cage stop slideway is blocked, the compensation device 3 can control one side of the cage stop slide block 102 to slide downwards, so that two sides of the cage synchronously slide and are decelerated, and accidents are avoided.
Tank fender seat 103 is fixedly connected to the upper end wall and the lower end wall of tank fender slider 102, tank fender seat 103 on the upside rotates and is connected with tank fender slide shaft 104, fixedly connected with spur gear 105 on the tank fender slide shaft 104, fixedly connected with spring holder 108 on the tank fender slide shaft 104, fixedly connected with dog 106 on the tank fender slide shaft 104, dog 106 with fixedly connected with tank fender spring 107 between the spring holder 108.
The spring seat 108 is rotationally connected with the tank baffle seat 103 at the lower side; when the cage descends, the worker can control the spur gear 105 to rotate, the spur gear 105 drives the cage stop sliding shaft 104 to rotate, the cage stop sliding shaft 104 drives the spring seat 108 to rotate, the spring seat 108 drives the cage stop spring 107 to rotate, the cage stop spring 107 drives the stop block 106 to rotate to be in contact with the cage slide rail, and when the cage descends to be in contact with the stop block 106, the stop block 106 slides downwards and drives the cage stop spring 107 to be compressed to the height, so that blocking of the cage is realized.
The pneumatic mechanism 2 comprises an air pump 201 fixedly connected to one end wall of a shaft, an air outlet pipe 202 fixedly connected to two end walls on two sides of the air pump 201, an air inlet pipe 205 fixedly connected between an air cavity 206 and an air delivery hose 203, a plurality of pipe clamps 204 fixedly connected to the air outlet pipe 202 and the shaft end wall, a piston 207 slidably connected to the air cavity 206, a pneumatic slide bar 208 fixedly connected to the piston 207, a rack 210 fixedly connected to the pneumatic slide bar 208, and a pneumatic spring 209 fixedly connected to the piston 207 and the end wall on the lower side of the air cavity 206.
The rack 210 is engaged with the spur gear 105; the air hose 203 passes through the inside of the plurality of pipe clamps 204; the piston 207 is slidably connected within the air chamber 206; so that the air hose 203 is close to the end wall of the shaft, and does not obstruct lifting and lowering of the cage; when the cage descends, the worker can control the opening of the air pump 201 through the remote end, after the air pump 201 is opened, air enters the air cavity 206 through the air outlet pipe 202, the air hose 203 and the air inlet pipe 205, air pressure in the air cavity 206 rises and pushes the piston 207 to slide, the piston 207 drives the pneumatic slide bar 208 to slide, the pneumatic spring 209 compresses, the pneumatic slide bar 208 drives the rack 210 to move, and the rack 210 drives the spur gear 105 to rotate, so that the stop block 106 rotates to block the cage.
The compensation device 3 comprises a detection cavity 301 arranged in a cage slide rail, a detection slide plate 302 slidably connected in the detection cavity 301, a plurality of detection springs 303 fixedly connected between the detection slide plate 302 and the inner side end wall of the detection cavity 301, a pressure sensor 304 fixedly connected on the inner side end wall of the detection cavity 301, compensation slide rods 306 fixedly connected between the two side end walls of the compensation cavity 305, compensation springs 307 fixedly connected between the cage slide block 102 and the end walls of the compensation cavity 305, a limit plate 308 slidably connected in the base 101, a limit slide cavity 310 arranged in the base 101, a clamping bar 309 slidably connected in the limit slide cavity 310, a limit spring 312 fixedly connected between the clamping bar 309 and one side end wall of the limit slide cavity 310, and an electromagnet 311 fixedly connected on one side end wall of the limit slide cavity 310.
The compensation spring 307 is in an extended state; the retainer spring 312 is in a compressed state.
The pressure sensor 304 is in telecommunication connection with the electromagnet 311 on the opposite side; one end of the clamping strip 309 extends into a groove formed in the end wall of one side of the limiting plate 308; the limiting plate 308 is fixedly connected with the tank stop slide block 102; under normal conditions, the clamping bar 309 prevents the limiting plate 308 from sliding, and the limiting plate 308 limits the tank stop slide block 102 from sliding; when one side is blocked by a slideway between the stop block 106 and the tank baffle sliding shaft 104, the stop block 106 is difficult to slide downwards, the sliding of two sides of the tank is asynchronous, so that the tank is inclined to one side of the tank rail, the detection sliding plate 302 is pushed to slide when the tank is just inclined, the detection spring 303 is compressed, the detection sliding plate 302 is in vertical contact with the pressure sensor 304, the pressure sensor 304 controls the electromagnet 311 on the blocking side to be opened, the electromagnet 311 attracts the clamping strip 309 and drives the clamping strip 309 to slide, the limiting spring 312 is compressed, the clamping strip 309 is separated from the limiting plate 308, the compensation spring 307 pulls the tank baffle sliding block 102 to move downwards rapidly and drives the stop block 106 on the blocking side to move downwards, so that the stop blocks 106 on the two sides keep synchronous sliding, and the two sides of the tank slide downwards synchronously, so that the safety of the tank is ensured when the tank works.
The above examples are only illustrative of the preferred embodiments of the present invention and do not limit the spirit and scope of the present invention. Various modifications and improvements of the technical scheme of the present invention will fall within the protection scope of the present invention without departing from the design concept of the present invention, and the technical content of the present invention is fully described in the claims.
Claims (1)
1. Can guarantee that both sides synchronous slip's mine jar keeps off, its characterized in that: the hydraulic lifting device comprises a base (101) arranged in a shaft, wherein the bases (101) on two sides are fixedly connected with cage slide rails on two sides respectively, a cage blocking mechanism (1) for blocking the cage when the cage is lifted is arranged on the base (101), the cage blocking mechanism (1) comprises a cage blocking slide block (102) which is slidably arranged on the base (101), an air cavity (206) is arranged in the cage blocking slide block (102), a pneumatic mechanism (2) for providing power for the cage blocking mechanism (1) is arranged in the shaft, a compensation cavity (305) is arranged in an end wall on one side of the base (101), and a compensation device (3) for realizing displacement compensation when the cage blocking slide rail on one side is blocked is arranged in the compensation cavity (305); tank retaining bases (103) are fixedly connected to the upper end wall and the lower end wall of the tank retaining sliding block (102), tank retaining sliding shafts (104) are rotatably connected to the tank retaining bases (103) on the upper side, spur gears (105) are fixedly connected to the tank retaining sliding shafts (104), spring seats (108) are fixedly connected to the tank retaining sliding shafts (104), stop blocks (106) are slidably connected to the tank retaining sliding shafts (104), and tank retaining springs (107) are fixedly connected between the stop blocks (106) and the spring seats (108); the spring seat (108) is rotationally connected in the tank baffle seat (103) at the lower side; the pneumatic mechanism (2) comprises an air pump (201) fixedly connected to one end wall of a shaft, an air outlet pipe (202) fixedly connected to two side end walls of the air pump (201), an air inlet pipe (205) fixedly connected between an air cavity (206) and an air hose (203), a plurality of pipe clamps (204) fixedly connected between the air inlet pipe (205) and the air outlet pipe (202) and arranged on the end wall of the shaft, a piston (207) slidably connected in the air cavity (206), a pneumatic slide bar (208) fixedly connected to the piston (207), a rack (210) fixedly connected to the pneumatic slide bar (208) and a pneumatic spring (209) fixedly connected between the piston (207) and the end wall at the lower side of the air cavity (206); the rack (210) is meshed with the spur gear (105); -said air hose (203) passing inside a plurality of said pipe clamps (204); the piston (207) is slidably connected within the air cavity (206); so that the air hose (203) is close to the end wall of the shaft, and does not cause obstruction to the lifting and the descending of the cage; when the cage descends, the worker can control opening of the air pump (201) through a remote end, after the air pump (201) is opened, air passes through the air outlet pipe (202), the air hose (203) and the air inlet pipe (205) enter into the air cavity (206), the air pressure in the air cavity (206) rises and pushes the piston (207) to slide, the piston (207) drives the pneumatic slide bar (208) to slide, the pneumatic spring (209) compresses, the pneumatic slide bar (208) drives the rack (210) to move, the rack (210) drives the spur gear (105) to rotate, thereby realizing rotation of the stop block (106), the compensation device (3) comprises a detection cavity (301) arranged in the cage slide rail, a detection slide plate (302) which is arranged in sliding connection with the detection cavity (301), a plurality of detection springs (303) which are fixedly connected between the inner side end walls of the detection slide plate (302) and the detection cavity (301), the end walls of the detection cavity (301) are fixedly connected with each other, the compensation slide bar (102) is fixedly connected between the end walls of the compensation cavity (305) and the compensation slide bar (102) which are fixedly connected between the end walls of the compensation cavity (305) and the compensation cavity (305) which are fixedly connected with the compensation slide bar (102) A limiting plate (308) which is slidably connected with the base (101), a limiting sliding cavity (310) which is arranged in the base (101), a clamping strip (309) which is slidably connected with the limiting sliding cavity (310), a limiting spring (312) which is fixedly connected between the clamping strip (309) and one side end wall of the limiting sliding cavity (310), and an electromagnet (311) which is fixedly connected with one side end wall of the limiting sliding cavity (310); -the compensation spring (307) is in an extended state; the limit spring (312) is in a compressed state; the pressure sensor (304) is in telecommunication connection with the electromagnet (311) on the opposite side; one end of the clamping strip (309) extends into a groove arranged on one side end wall of the limiting plate (308); the limiting plate (308) is fixedly connected with the tank baffle sliding block (102); so that under normal conditions, the clamping strip (309) prevents the limiting plate (308) from sliding, and the limiting plate (308) limits the tank stop slide block (102) from sliding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110436354.0A CN113120734B (en) | 2021-04-22 | 2021-04-22 | Mine tank baffle capable of ensuring synchronous sliding of two sides |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110436354.0A CN113120734B (en) | 2021-04-22 | 2021-04-22 | Mine tank baffle capable of ensuring synchronous sliding of two sides |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113120734A CN113120734A (en) | 2021-07-16 |
| CN113120734B true CN113120734B (en) | 2024-03-12 |
Family
ID=76779052
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110436354.0A Active CN113120734B (en) | 2021-04-22 | 2021-04-22 | Mine tank baffle capable of ensuring synchronous sliding of two sides |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113120734B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102234051A (en) * | 2010-04-24 | 2011-11-09 | 徐州泰荣煤矿设备有限公司 | Bidirectional-sensing compensating tank bearing and tank locking device for hoisting container |
| WO2012123397A1 (en) * | 2011-03-16 | 2012-09-20 | Siemens Aktiengesellschaft | Method and device for controlling a lifting machine, a storage medium, and a lifting machine system |
| CN103121617A (en) * | 2013-02-20 | 2013-05-29 | 郑州煤炭工业(集团)有限责任公司 | Tramcar-blocking device inside cage |
| CN104003275A (en) * | 2014-06-13 | 2014-08-27 | 山东加宁重工有限公司 | Locking device for cage of vertical shaft |
| CN104058312A (en) * | 2014-06-09 | 2014-09-24 | 徐州市工大三森科技有限公司 | Force limiting double releasing cage locking device |
| CN204454212U (en) * | 2015-01-15 | 2015-07-08 | 武汉市云竹机电新技术开发有限公司 | A kind of Tank-supporting device for mine |
| CN208120522U (en) * | 2018-03-22 | 2018-11-20 | 江苏中矿科汇矿业科技有限公司 | Buffer cage locking swing deck |
-
2021
- 2021-04-22 CN CN202110436354.0A patent/CN113120734B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102234051A (en) * | 2010-04-24 | 2011-11-09 | 徐州泰荣煤矿设备有限公司 | Bidirectional-sensing compensating tank bearing and tank locking device for hoisting container |
| WO2012123397A1 (en) * | 2011-03-16 | 2012-09-20 | Siemens Aktiengesellschaft | Method and device for controlling a lifting machine, a storage medium, and a lifting machine system |
| CN103121617A (en) * | 2013-02-20 | 2013-05-29 | 郑州煤炭工业(集团)有限责任公司 | Tramcar-blocking device inside cage |
| CN104058312A (en) * | 2014-06-09 | 2014-09-24 | 徐州市工大三森科技有限公司 | Force limiting double releasing cage locking device |
| CN104003275A (en) * | 2014-06-13 | 2014-08-27 | 山东加宁重工有限公司 | Locking device for cage of vertical shaft |
| CN204454212U (en) * | 2015-01-15 | 2015-07-08 | 武汉市云竹机电新技术开发有限公司 | A kind of Tank-supporting device for mine |
| CN208120522U (en) * | 2018-03-22 | 2018-11-20 | 江苏中矿科汇矿业科技有限公司 | Buffer cage locking swing deck |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113120734A (en) | 2021-07-16 |
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Effective date of registration: 20241015 Address after: 230000 B-2704, wo Yuan Garden, 81 Ganquan Road, Shushan District, Hefei, Anhui. Patentee after: HEFEI LONGZHI ELECTROMECHANICAL TECHNOLOGY Co.,Ltd. Country or region after: China Address before: 276808 No.45, Lanshan Middle Road, Lanshan District, Rizhao City, Shandong Province Patentee before: Rizhao Liuhai Petrochemical Co.,Ltd. Country or region before: China |