CN220580803U - Adjusting structure and hinge - Google Patents
Adjusting structure and hinge Download PDFInfo
- Publication number
- CN220580803U CN220580803U CN202320845659.1U CN202320845659U CN220580803U CN 220580803 U CN220580803 U CN 220580803U CN 202320845659 U CN202320845659 U CN 202320845659U CN 220580803 U CN220580803 U CN 220580803U
- Authority
- CN
- China
- Prior art keywords
- connecting rod
- seat
- frame side
- side seat
- rivet
- 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
- 230000001105 regulatory effect Effects 0.000 claims description 8
- 230000003014 reinforcing effect Effects 0.000 description 22
- 230000003068 static effect Effects 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
Landscapes
- Hinges (AREA)
Abstract
The utility model relates to the field of doors and windows, and discloses an adjusting structure and a hinge, wherein the adjusting structure comprises a frame side seat, an adjusting piece and an auxiliary connecting rod, the auxiliary connecting rod is arranged on the frame side seat, the auxiliary connecting rod and the frame side seat can rotate relatively, a first guide rail is arranged on the frame side seat, the adjusting piece is arranged on the auxiliary connecting rod, the adjusting piece and the first guide rail can slide relatively, and the tightness degree between the adjusting piece and the first guide rail is adjustable. In addition, the hinge comprises the adjusting structure, and further comprises a connecting seat, a first connecting rod and a second connecting rod. The adjusting structure has high structural strength, and the structural strength of the hinge applying the adjusting structure can be effectively improved.
Description
Technical Field
The utility model relates to the field of doors and windows, in particular to an adjusting structure and a hinge.
Background
Currently, there are some hinges on the market that can adjust the degree of tightness of the hinge opening and closing. However, these types of hinges generally have a first runner extending along the length of the frame to satisfy the degree of freedom of opening and closing the hinge. For example, chinese patent publication No. CN215565229U provides a hinge with adjustable friction force and easy opening and closing, and the first chute in the publication is installed on the frame side seat. However, by providing the first sliding groove along the length direction of the frame side seat on the frame side seat, the structural strength of the frame side seat can be greatly reduced, and under the condition that the weight of the window sash is heavy, the frame side seat is easy to deform. If the first sliding groove is replaced by a protruding form, the cross section of the sliding block needs to be set into an inverted U shape, so that the structural strength of the sliding block matched with the protruding portion is reduced, the strength of the connecting part with the frame side seat is still not high enough, and the overall structural strength of the casement window is weak.
Disclosure of Invention
The utility model aims to solve the technical problems that: at least one technical problem set forth above is solved.
The utility model solves the technical problems as follows:
the utility model provides an adjusting structure, includes the frame side seat, and adjusting structure still includes regulating part and auxiliary connecting rod, the auxiliary connecting rod sets up on the frame side seat, auxiliary connecting rod with but relative rotation between the frame side seat, be equipped with first guide rail on the frame side seat, the regulating part sets up on the auxiliary connecting rod, the regulating part with but relative sliding between the first guide rail, the regulating part with elasticity degree is adjustable between the first guide rail.
The beneficial effects of the utility model are as follows: when the adjusting device is used, a user can adjust the tightness degree between the adjusting piece and the first guide rail by adjusting the tightness degree between the adjusting piece and the first guide rail, so that the maximum static friction force and the sliding friction force between the first guide rail and the adjusting piece are adjusted, the tightness degree when the auxiliary connecting rod and the frame side seat are opened or closed is adjusted, and the first guide rail is correspondingly arranged to be matched with the adjusting piece in an arc shape due to the fact that the auxiliary connecting rod and the frame side seat can be matched in a relative rotating mode.
As a further improvement of the technical scheme, a first sliding groove is formed in the frame side seat, the first sliding groove is the first guide rail, and the adjusting piece is inserted into the first sliding groove.
As a further improvement of the technical scheme, the adjusting piece comprises a screw, an adjusting hole is formed in the auxiliary connecting rod, the screw is in threaded fit with the adjusting hole, and the screw is used for propping against the first guide rail.
As a further improvement of the technical scheme, the frame side seat is provided with an auxiliary hole, the auxiliary connecting rod is provided with a connecting hole, and the connecting hole is connected with the auxiliary hole through a rivet.
The utility model also provides a hinge, which comprises the adjusting structure in any technical scheme, and further comprises a connecting seat, a first connecting rod and a second connecting rod, wherein the connecting seat is used for being connected with the fan edge of the fan window; the two ends of the first connecting rod are respectively connected with the connecting seat and the frame side seat, the first connecting rod and the frame side seat can rotate relatively, and the first connecting rod and the connecting seat can rotate relatively; the two ends of the second connecting rod are respectively connected to the frame side seat and the connecting seat, the second connecting rod and the frame side seat can rotate relatively, and the second connecting rod and the connecting seat can rotate relatively; the auxiliary connecting rod is provided with a long hole, the middle part of the second connecting rod is provided with an opening, the opening is connected with the long hole through a rivet, and the rivet in the opening and the long hole can slide relatively. The hinge adopts the adjusting structure and has high structural strength.
As a further improvement of the technical scheme, two convex bosses upwards are bent at the two end parts of the frame side seat, so that two grooves corresponding to the bosses one to one are formed on the bottom surface of the frame side seat, the first connecting rod is connected with one boss through a rivet, and the second connecting rod is connected with the other boss through a rivet.
As a further improvement of the above technical solution, the first connecting rod is provided with a first reinforcing rib, and the first reinforcing rib extends along the extending direction of the first connecting rod.
As a further improvement of the above technical solution, the second connecting rod is provided with a second reinforcing rib, and the second reinforcing rib extends along the extending direction of the second connecting rod.
As a further improvement of the technical scheme, the boss connected with the first connecting rod through the rivet is called a first boss, a third reinforcing rib is arranged on the frame side seat, and the third reinforcing rib extends to the first boss.
As a further improvement of the technical scheme, the frame side seat is provided with a second chute, the first connecting rod is connected with the second chute through a rivet, and the rivet connecting the first connecting rod and the second chute can slide relatively with the second chute.
The utility model also provides a casement window, which comprises the hinge in any technical scheme. The hinge is adopted in the casement window, the structural strength is high, the structural reliability is high, and the safety performance of the casement window during opening and closing is high.
Drawings
FIG. 1 is an exploded view of the hinge of the present utility model;
FIG. 2 is an isometric view of the hinge of the present utility model;
fig. 3 is an isometric view of a hinge of the present utility model.
In the accompanying drawings: 1-frame side seat, 11-first chute, 12-boss, 13-third reinforcing rib, 14-second chute, 2-auxiliary connecting rod, 21-slot, 3-first connecting rod, 31-first reinforcing rib, 4-second connecting rod, 41-second reinforcing rib, 42-opening, 5-connecting seat, 6-screw and 7-rivet.
Detailed Description
In order to more clearly illustrate the technical solution in the embodiments of the present utility model, the above description of the embodiments refers to the accompanying drawings. It is evident that the drawings described are only some embodiments of the utility model, but not all embodiments, and that other designs and drawings can be obtained from these drawings by a person skilled in the art without inventive effort.
The conception, specific structure, and technical effects produced by the present utility model will be clearly and completely described below with reference to the embodiments and the drawings to fully understand the objects, features, and effects of the present utility model. It is apparent that the described embodiments are only some embodiments of the present utility model, but not all embodiments, and that other embodiments obtained by those skilled in the art without inventive effort are within the scope of the present utility model based on the embodiments of the present utility model. In addition, all coupling/connection relationships mentioned herein do not refer to direct connection of the components, but rather, refer to the fact that a more optimal coupling structure may be formed by adding or subtracting coupling aids depending on the particular implementation. The technical features of the utility model can be interactively combined on the premise of no contradiction and conflict.
Referring to fig. 1 to 3, an adjusting structure comprises a frame side seat 1, the adjusting structure further comprises an adjusting piece and an auxiliary connecting rod 2, the auxiliary connecting rod 2 is arranged on the frame side seat 1, the auxiliary connecting rod 2 and the frame side seat 1 can rotate relatively, a first guide rail is arranged on the frame side seat 1, the adjusting piece is arranged on the auxiliary connecting rod 2, the adjusting piece and the first guide rail can slide relatively, and the tightness degree between the adjusting piece and the first guide rail can be adjusted.
When the novel adjustable sliding type guide rail is used, a user can adjust the tightness degree between the adjusting piece and the first guide rail by adjusting the tightness degree between the adjusting piece and the first guide rail, so that the maximum static friction force and the sliding friction force between the first guide rail and the adjusting piece are adjusted, the tightness degree when the auxiliary connecting rod 2 and the frame side seat 1 are opened or closed is adjusted, the first guide rail is correspondingly arranged to be matched with the adjusting piece in an arc shape due to the fact that the auxiliary connecting rod 2 and the frame side seat 1 can be matched in a relative rotating mode, and therefore, the novel adjustable sliding type guide rail is different from the guide rail adopting a linear type guide rail in the prior art, the length of the first guide rail can be effectively reduced, the purpose of improving the strength of a structure is achieved, and the structure is stable.
The first guide rail and the adjusting member can slide relatively, and meanwhile, the friction force between the adjusting member and the first guide rail can be adjusted, so that in some embodiments, a first sliding groove 11 is formed in the frame side seat 1, the first sliding groove 11 is the first guide rail, and the adjusting member is inserted into the first sliding groove 11. The first guide rail is provided in the form of the first chute 11, so that the adjusting member can be inserted into the first chute 11, and a user can adjust whether friction is generated between the adjusting member and the bottom surface of the first chute 11 by adjusting the insertion depth of the adjusting member.
In practical use, the first chute 11 may be formed on the top surface of the frame base 1. In order to stabilize the connection between the adjusting element and the first runner 11, the first runner 11 may be provided as a T-shaped groove, with a concave-convex fit between the adjusting element and the T-shaped groove, so that the adjusting element is confined in the T-shaped groove.
In order to meet the relative sliding between the adjusting piece and the first guide rail, in other embodiments, the first guide rail is provided with a convex rib, and the adjusting piece is provided with a guide groove which is matched with the convex rib in a concave-convex manner. In this way, a relative sliding movement between the adjusting member and the first guide rail can also be achieved.
The adjusting piece is used for adjusting the tightness degree of opening and closing of the frame side seat 1 and the auxiliary connecting rod 2, in some embodiments, the adjusting piece comprises a screw 6, an adjusting hole is formed in the auxiliary connecting rod 2, the screw 6 is in threaded fit with the adjusting hole, and the screw 6 is used for propping against the first guide rail. The screw 6 and the adjusting hole are matched, a user rotates the screw 6 to enable the screw 6 to move along the depth direction of the adjusting hole, the screw 6 is abutted against the first guide rail, in some embodiments, the screw 6 is abutted against the bottom surface of the first sliding groove 11, at the moment, if the user further tightens the screw 6, the pressure of the screw 6 pressed against the bottom surface of the first sliding groove 11 is larger, and therefore the maximum static friction force between the screw 6 and the first sliding groove 11 is improved; of course, in order to reduce the maximum static friction between the screw 6 and the first runner 11, the screw 6 may be moved away from the bottom surface of the first runner 11 by unscrewing the screw 6, i.e. moving the screw 6 upwards.
The frame side seat 1 and the auxiliary connecting rod 2 can rotate relatively, for this purpose, in some embodiments, an auxiliary hole is formed in the frame side seat 1, a connecting hole is formed in the auxiliary connecting rod 2, and the connecting hole is connected with the auxiliary hole through a rivet 7. By the arrangement of the structure, the frame side seat 1 and the auxiliary connecting rod 2 can be connected in a relatively rotatable manner. Simultaneously, link to each other through rivet 7 between frame side seat 1 and the auxiliary connecting rod 2, its simple structure, convenient production.
In addition, in other embodiments, the frame side seat 1 and the auxiliary connecting rod 2 can be connected through bolts so as to realize a connection relationship between the frame side seat 1 and the auxiliary connecting rod 2 capable of rotating relatively, and further, the frame side seat 1 and the auxiliary connecting rod 2 can be connected through a rotating shaft.
The utility model also provides a hinge, which comprises the adjusting structure in any embodiment, and further comprises a connecting seat 5, a first connecting rod 3 and a second connecting rod 4, wherein the connecting seat 5 is used for being connected with the sash edge of the sash window; the two ends of the first connecting rod 3 are respectively connected with the connecting seat 5 and the frame side seat 1, the first connecting rod 3 and the frame side seat 1 can rotate relatively, and the first connecting rod 3 and the connecting seat 5 can rotate relatively; the two ends of the second connecting rod 4 are respectively connected to the frame side seat 1 and the connecting seat 5, the second connecting rod 4 and the frame side seat 1 can rotate relatively, and the second connecting rod 4 and the connecting seat 5 can rotate relatively; the auxiliary connecting rod 2 is provided with a long hole 21, the middle part of the second connecting rod 4 is provided with an opening 42, the opening 42 is connected with the long hole 21 through a rivet 7, and the rivet 7 in the opening 42 and the long hole 21 can slide relatively. The hinge adopts the adjusting structure and has high structural strength.
When the four-bar linkage mechanism is used, the first connecting rod 3, the second connecting rod 4, the frame side seat 1 and the connecting seat 5 form a four-bar linkage mechanism, and the auxiliary connecting rod 2 mainly plays a role in strengthening structural strength, and besides, the adjustment piece on the auxiliary connecting rod 2 and the first guide rail on the frame side seat 1 are matched, so that the external force required by the whole four mechanisms in opening can be adjusted.
The first connecting rod 3 is connected with the connecting seat 5 through the rivet 7, and the second connecting rod 4 is connected with the connecting seat 5 through the rivet 7, so that the purpose of relative rotation between the first connecting rod 3, the second connecting rod 4 and the connecting seat 5 is realized. Of course, the first connecting rod 3 and the second connecting rod 4 can also be connected with each other through a rotating shaft and bolts equal to the connecting seat 5.
Since the above has been described in relation to the adjustment structure, those skilled in the art will understand in connection with the accompanying drawings of the specification, the adjustment structure will not be discussed further herein.
The first connecting rod 3 and the second connecting rod 4 are both arranged on the frame side seat 1, and the first connecting rod 3 and the second connecting rod 4 can rotate relative to the frame side seat 1 respectively, in some embodiments, two convex bosses 12 upwards are bent at two ends of the frame side seat 1, so that two grooves corresponding to the two bosses 12 one by one are formed on the bottom surface of the frame side seat 1, the first connecting rod 3 is connected with one of the bosses 12 through a rivet 7, and the second connecting rod 4 is connected with the other boss 12 through a rivet 7. The first connecting rod 3 and the second connecting rod 4 are respectively connected with the boss 12 through the rivet 7, and the connection mode is simple and the processing is convenient. In addition, through boss 12, the setting of recess, can make rivet 7 dodge with the outer wall of peripheral hardware effectively for rivet 7 that passes frame side seat 1 sets up in the recess, has avoided rivet 7 and the outer wall of peripheral hardware to appear interfering the phenomenon, can ensure that first connecting rod 3, the smooth and easy opening and close of second connecting rod 4.
In order to realize the connection mode that the first connecting rod 3, the second connecting rod 4 and the frame side seat 1 can rotate relatively, the connection can also be realized by adopting a rotating shaft or a bolt and the like.
In order to improve the structural strength of the first link 3, in some embodiments, the first link 3 is provided with a first reinforcing rib 31, and the first reinforcing rib 31 extends along the extending direction of the first link 3. In actual use, the first reinforcing ribs 31 are arranged two, the two first reinforcing ribs 31 are arranged on the bottom surface of the first connecting rod 3, and the two first reinforcing ribs 31 are arranged at intervals along the width direction of the first connecting rod 3, so that the structural strength of the first connecting rod 3 is improved.
In order to improve the structural strength of the second link 4, in some embodiments, the second link 4 is provided with a second reinforcing rib 41, and the second reinforcing rib 41 extends along the extending direction of the second link 4. In use, two second reinforcing ribs 41 are provided, one second reinforcing rib 41 being provided at an edge of the second link 4 and extending along the length direction of the second link 4. The other second reinforcing rib 41 is arranged on the top surface of the second connecting rod 4, and the reinforcing rib arranged on the top surface of the second connecting rod 4 is arranged beside the opening 42, so that the structural strength of the opening 42 can be enhanced.
In order to improve the strength of the connection between the first link 3 and the frame side seat 1, in some embodiments, the boss 12 connected to the first link 3 by the rivet 7 is referred to as a first boss 12, and the frame side seat 1 is provided with a third reinforcing rib 13, where the third reinforcing rib 13 extends to the first boss 12.
In order to further improve the connection strength between the first frame side seat 1 and the first connecting rod 3, in some embodiments, a second sliding groove 14 is formed in the frame side seat 1, the first connecting rod 3 is connected with the second sliding groove 14 through a rivet 7, and the rivet 7 connecting the first connecting rod 3 and the second sliding groove 14 can slide relatively. Thus, in combination with some embodiments, the connection between the first link 3 and the rim seat 1 employs two rivets 7; of these two rivets 7, one rivet 7 is used to effect a relative rotation of the first link 3 and the rim seat 1, in some embodiments, the rivet 7 being mounted on the first boss 12; the other rivet 7 is arranged in the second runner 14, so that its structure is more stable. In actual use, the second chute 14 is arranged in a circular arc shape in order to allow the first link 3 to smoothly rotate.
Further, in certain embodiments, the second runner 14 is disposed on the first boss 12.
The utility model also provides a casement window, which comprises the hinge in any embodiment. The hinge is adopted in the casement window, the structural strength is high, the structural reliability is high, and the safety performance of the casement window during opening and closing is high. Since the foregoing has been described with respect to a hinge, those skilled in the art will be able to understand the hinge in light of the accompanying drawings, and will not be described further herein with respect to the hinge.
In use, the frame side seat 1 can be used for mounting on a building, and the connection seat 5 can be used for fixing the sash side of a sash window, i.e. a user can mount the sash side on the connection seat 5.
While the preferred embodiment of the present utility model has been described in detail, the present utility model is not limited to the embodiments described above, and various equivalent modifications and substitutions can be made by those skilled in the art without departing from the spirit of the present utility model, and these equivalent modifications and substitutions are intended to be included in the scope of the present utility model as defined in the appended claims.
Claims (10)
1. The utility model provides an adjusting structure, includes frame limit seat (1), its characterized in that, adjusting structure still includes regulating part and auxiliary connecting rod (2), auxiliary connecting rod (2) set up on frame limit seat (1), auxiliary connecting rod (2) with can rotate relatively between frame limit seat (1), be equipped with first guide rail on frame limit seat (1), the regulating part sets up on auxiliary connecting rod (2), the regulating part with can slide relatively between the first guide rail, the regulating part with elasticity degree is adjustable between the first guide rail.
2. The adjusting structure according to claim 1, wherein a first chute (11) is formed in the frame side seat (1), the first chute (11) is the first guide rail, and the adjusting member is inserted into the first chute (11).
3. The adjusting structure according to claim 1 or 2, wherein the adjusting member comprises a screw (6), an adjusting hole is formed in the auxiliary connecting rod (2), the screw (6) is in threaded fit with the adjusting hole, and the screw (6) is used for abutting against the first guide rail.
4. The adjusting structure according to claim 1, wherein the frame side seat (1) is provided with an auxiliary hole, the auxiliary connecting rod (2) is provided with a connecting hole, and the connecting hole is connected with the auxiliary hole through a rivet (7).
5. A hinge, characterized in that it comprises an adjustment structure according to any one of claims 1-4, said hinge further comprising a connection seat (5), a first link (3) and a second link (4), said connection seat (5) being intended to be connected with a sash edge of a sash; the two ends of the first connecting rod (3) are respectively connected with the connecting seat (5) and the frame side seat (1), the first connecting rod (3) and the frame side seat (1) can rotate relatively, and the first connecting rod (3) and the connecting seat (5) can rotate relatively; two ends of the second connecting rod (4) are respectively connected to the frame side seat (1) and the connecting seat (5), the second connecting rod (4) and the frame side seat (1) can rotate relatively, and the second connecting rod (4) and the connecting seat (5) can rotate relatively; the auxiliary connecting rod (2) is provided with a long hole (21), the middle part of the second connecting rod (4) is provided with an opening (42), the opening (42) is connected with the long hole (21) through a rivet (7), and the rivet (7) in the opening (42) and the long hole (21) can slide relatively.
6. The hinge according to claim 5, wherein two protruding bosses (12) are bent at two ends of the frame side seat (1), so that two grooves corresponding to the two bosses (12) one by one are formed on the bottom surface of the frame side seat (1), the first connecting rod (3) is connected with one boss (12) through a rivet (7), and the second connecting rod (4) is connected with the other boss (12) through the rivet (7).
7. Hinge according to claim 5, characterized in that the first link (3) is provided with a first stiffening rib (31), which first stiffening rib (31) extends in the direction of extension of the first link (3).
8. Hinge according to claim 5, characterized in that the second connecting rod (4) is provided with a second stiffening rib (41), which second stiffening rib (41) extends in the direction of extension of the second connecting rod (4).
9. Hinge according to claim 6, characterized in that the boss (12) connected to the first link (3) by means of the rivet (7) is called first boss (12), and that the rim seat (1) is provided with a third stiffening rib (13), and that the third stiffening rib (13) extends onto the first boss (12).
10. The hinge according to claim 5, wherein the frame side seat (1) is provided with a second chute (14), the first connecting rod (3) is connected with the second chute (14) through a rivet (7), and the rivet (7) connecting the first connecting rod (3) and the second chute (14) can slide relatively.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202320845659.1U CN220580803U (en) | 2023-04-14 | 2023-04-14 | Adjusting structure and hinge |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202320845659.1U CN220580803U (en) | 2023-04-14 | 2023-04-14 | Adjusting structure and hinge |
Publications (1)
Publication Number | Publication Date |
---|---|
CN220580803U true CN220580803U (en) | 2024-03-12 |
Family
ID=90107192
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202320845659.1U Active CN220580803U (en) | 2023-04-14 | 2023-04-14 | Adjusting structure and hinge |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN220580803U (en) |
-
2023
- 2023-04-14 CN CN202320845659.1U patent/CN220580803U/en active Active
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CA2321693C (en) | Improvements in or relating to hinges | |
CN209145436U (en) | A kind of hinge | |
CN220580803U (en) | Adjusting structure and hinge | |
CN110905318A (en) | European standard groove invisible dustproof hinge | |
CN217538294U (en) | Gap-adjustable hinge assembly and adjustable window sash | |
CN211647726U (en) | Door and window hinge with adjustable opening and closing tightness | |
CN212837262U (en) | Adjustable automatic locking hidden hinge | |
CN212867212U (en) | Sliding support hinge for window | |
CN218347174U (en) | Reinforced high-bearing hinge | |
CN219509469U (en) | Linkage hinge structure of sliding window and door and window | |
CN221053456U (en) | Sliding support | |
CN112681918A (en) | Adjusting mechanism, hinge and window | |
CN219509456U (en) | Linkage hinge structure of sliding window and door and window | |
US20070101653A1 (en) | Hinge assembly for casement windows | |
CN221682746U (en) | Hinge for high-bearing casement window | |
CN111485776A (en) | Sliding support hinge for window | |
CN219138749U (en) | Flat-open hinge for curtain wall | |
CN221920639U (en) | Hinge for aluminum alloy door and window | |
CN221053457U (en) | Sliding support | |
CN217950075U (en) | Hinge with a hinge body | |
CN221920630U (en) | Hinge assembly convenient to adjust | |
CN219953020U (en) | Hinge with positioning function | |
CN218912593U (en) | Double-pivot door and window hinge | |
CN220565914U (en) | Pulley assembly and sliding door and window | |
CN220747959U (en) | Concealed hinge |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
GR01 | Patent grant | ||
GR01 | Patent grant |