CN211951100U - Positioning connecting piece - Google Patents
Positioning connecting piece Download PDFInfo
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- CN211951100U CN211951100U CN202020264788.8U CN202020264788U CN211951100U CN 211951100 U CN211951100 U CN 211951100U CN 202020264788 U CN202020264788 U CN 202020264788U CN 211951100 U CN211951100 U CN 211951100U
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Abstract
The utility model provides a positioning connecting piece, it can fast assembly evagination position sleeve, and then two adjacent splicers of high-efficient accurate location, and its make things convenient for the dismouting, still guarantee positioning accuracy and location firmness after a lot of dismouting. The inner concave positioning sleeve is integrally and fixedly arranged in a first positioning hole of a first splicing piece, the outer convex positioning sleeve is fixedly arranged in a second positioning hole of a second splicing piece, the end surface of the outer convex positioning sleeve, facing the inner concave positioning sleeve, is forward convex relative to the corresponding end surface of the second positioning hole to form a forward convex part, the inner concave positioning sleeve is concave in a region corresponding to the forward convex part to form a positioning groove, a central guide hole is formed in the middle region in the axial direction of the inner concave positioning sleeve, an inner concave positioning cavity is formed in the rear end of the inner concave positioning sleeve in the axial direction, a locking nut is fixedly arranged in the inner concave positioning cavity, and the internal thread of the locking nut and the central guide hole are coaxially arranged; the convex positioning sleeve comprises a front convex sleeve and a rear convex sleeve.
Description
Technical Field
The utility model relates to a technical field that panel or frame class subassembly are connected specifically is a positioning connection spare.
Background
Present furniture or packing box, when it constitutes holistic structure through the panel of unit area or unit size's frame construction concatenation, need set up detachable elastic connecting piece, current elastic connecting piece, the front end hole of evagination position sleeve need be at installation spring, connection stud after-mounting backstop ring, because backstop ring volume is less, it makes the packaging efficiency of overall structure lower, influence the fast assembly of connecting piece, and because backstop ring is less, follow-up dismantlement is inconvenient relatively.
Disclosure of Invention
To the above problem, the utility model provides a positioning connection spare, it can fast assembly evagination position sleeve, and then two adjacent splicers of high-efficient accurate location, and its make things convenient for the dismouting, still guarantee positioning accuracy and positioning firmness after a lot of dismouting.
A positioning connection, characterized in that: the positioning device comprises an inwards concave positioning sleeve and an outwards convex positioning sleeve, wherein the inwards concave positioning sleeve is integrally and fixedly arranged in a first positioning hole of a first splicing piece, the outwards convex positioning sleeve is fixedly arranged in a second positioning hole of a second splicing piece, the end surface of the outwards convex positioning sleeve, facing the inwards concave positioning sleeve, is forwards convex relative to the corresponding end surface of the second positioning hole to form a forwards convex part, the inwards concave positioning sleeve is inwards concave in a region corresponding to the forwards convex part to form a positioning groove, a central guide hole is arranged in the middle region in the axial direction of the inwards concave positioning sleeve, an inwards concave positioning cavity is arranged at the rear end in the axial direction of the inwards concave positioning sleeve, a locking nut is fixedly arranged in the inwards concave positioning cavity, and the internal thread of the locking nut and the central guide hole; the outer convex positioning sleeve comprises a front convex sleeve and a rear convex sleeve, the rear end of the front convex sleeve is provided with a rear convex external thread, the front end inner hole of the rear convex sleeve is provided with a connecting internal thread, the rear end of the front convex sleeve and the front end inner hole of the rear convex sleeve are in threaded connection to form an integral structure and an inner guide hole, the center of the front end plate of the front convex sleeve is provided with a first central through hole, the center of the rear end plate of the rear convex sleeve is provided with a second central through hole, the outer ring of the middle section of the connecting stud in the length direction is provided with a side convex positioning ring, the rear end of the connecting stud penetrates through the second central through hole and is exposed out and extends to the outer end face of the corresponding structure of the corresponding second splicing member, and the outer ring face of the connecting stud exposed out of the corresponding structure of the second splicing member is provided with a driving structure, the compression spring is located in the area of the inner guide hole of the convex positioning sleeve.
It is further characterized in that:
the front end of the compression spring is jacked on the front end plate, the rear end of the compression spring is jacked on the side convex positioning ring, the threaded part of the connecting stud is retracted into the inner guide hole in the unconnected state, and the threaded part of the connecting stud penetrates through the first central through hole and the inner thread of the locking nut after the central guide hole in the connected state;
the front end of the compression spring is jacked on the side convex positioning ring, the rear end of the compression spring is jacked on the rear end plate, the threaded part of the connecting stud is protruded in front of the inner guide hole in the unconnected state, and the threaded part of the connecting stud penetrates through the central guide hole in the connected state and is then in threaded connection with the internal thread of the locking nut;
the outer diameter of the front convex sleeve is the same as that of the rear convex sleeve, and the front convex sleeve and the rear convex sleeve are in threaded connection to form a columnar structure;
the outer diameter of the front convex sleeve is smaller than that of the rear convex sleeve, the front convex sleeve is a front convex part, the outer diameter of the rear convex sleeve is the same as that of the inner concave positioning sleeve, and the lengths of the rear convex sleeve and the inner concave positioning sleeve are the same, so that the positioning holes in the two splicing pieces are the same, holes are not required to be drilled by different tools, and the processing is relatively simple;
the outer diameter of the connecting stud is smaller than the first central through hole and the second central through hole, and a gap is reserved between the side convex positioning ring of the connecting stud and the inner ring wall of the inner guide hole of the convex positioning sleeve, so that when an error exists in the process of opening the hole, the error can be overcome through radial adjustment of the connecting stud, and the splicing pieces can be assembled quickly and conveniently;
the front end of the connecting stud is of a cylindrical structure;
the front end of the connecting stud is a cone head structure which is closed from back to front, so that the connecting stud is quick and convenient when the center is centered;
the driving structure is a pull handle structure, two connectors of the pull handle structure are fixedly connected to corresponding positions of the outer peripheral surface exposed at the rear end of the connecting stud respectively, and an installer drives the connecting stud to rotate through the pull handle structure to complete screwing or unscrewing actions;
the driving structure is a bolt head-shaped structure, the exposed part of the rear end of the connecting stud is the bolt head-shaped structure, the bolt head shape includes but is not limited to hexagon and quadrangle, and an installer drives the connecting stud to rotate through a wrench to complete screwing or unscrewing actions;
the driving structure is specifically an inner groove formed in the rear end face of the connecting stud, the shape of the inner groove includes but is not limited to a straight groove, a cross groove and a star-shaped groove, and an installer drives the connecting stud to rotate through a screwdriver of a corresponding type to complete screwing or unscrewing actions;
the compression spring is specifically a whole linear spring, and the linear spring is sleeved in the corresponding area of the connecting stud;
the compression spring is formed by combining a plurality of spring columns annularly distributed on the periphery of the connecting stud, and pressure stability and reliability are ensured.
After the technical scheme is adopted, the outer convex positioning sleeve comprises a front convex sleeve and a rear convex sleeve, the rear end of the front convex sleeve is provided with a rear convex external thread, the front end inner hole of the rear convex sleeve is provided with a connecting internal thread, the rear end of the front convex sleeve and the front end inner hole of the rear convex sleeve are in threaded connection to form an integral structure and form an internal guide hole, the center of the front end plate of the front convex sleeve is provided with a first central through hole, the center of the rear end plate of the rear convex sleeve is provided with a second central through hole, so that the connection of the outer convex positioning sleeve is simple and convenient, after the alignment holes of the first splicing member and the second splicing member are aligned, the front end of the connecting stud is inserted into the alignment central guide hole, the front convex portion is inserted into the positioning groove, then the driving structure is rotated to drive the threaded portion of the connecting stud and the locking nut to complete the fastening connection, and simultaneously the first splicing member and the second splicing member, when the second splicing piece and the first splicing piece are required to be detached, the second splicing piece and the first splicing piece can be directly detached only by rotating the driving structure again to enable the connecting stud to be detached from the concave positioning sleeve; it can fast assembly evagination position sleeve, and then two adjacent splicers of high-efficient accurate location, and its make things convenient for the dismouting, still guarantees positioning accuracy and location firmness after many times of dismouting.
Drawings
Fig. 1 is a schematic sectional view of a front view of a first embodiment of the present invention;
fig. 2 is a schematic sectional view of a front view of a second embodiment of the present invention;
fig. 3 is a schematic sectional view of a front view of a second embodiment of the present invention;
FIG. 4 is a schematic right side view of the structure of FIG. 2;
FIG. 5 is a schematic view of section A-A of FIG. 2;
the names corresponding to the sequence numbers in the figure are as follows:
the positioning structure comprises a concave positioning sleeve 1, a positioning groove 101, a central guide hole 102, a concave positioning cavity 103, a convex positioning sleeve 2, a front convex sleeve 201, a rear convex sleeve 202, a front convex part 21, an inner guide hole 22, a front end plate 23, a first central through hole 24, a rear end plate 25, a second central through hole 26, a locking nut 3, a connecting stud 4, a threaded part 41, a side convex positioning ring 42, a gap 5, a conical head structure 6, a pull handle structure 7, a bolt head shape structure 8, an inner groove 9, a linear spring 10 and a spring column 11.
Detailed Description
A locating coupling, see fig. 1-5: the positioning device comprises an inwards concave positioning sleeve 1 and an outwards convex positioning sleeve 2, wherein the inwards concave positioning sleeve 1 is integrally and fixedly arranged in a first positioning hole (not shown in the figure and belonging to a conventional connecting structure) of a first splicing part, the outwards convex positioning sleeve 2 is fixedly arranged in a second positioning hole (not shown in the figure and belonging to a conventional connecting structure) of a second splicing part, the end surface of the outwards convex positioning sleeve 2 facing the inwards concave positioning sleeve 1 is forwards convex relative to the corresponding end surface of the second positioning hole to form a forwards convex part 21, the area of the inwards concave positioning sleeve 1 corresponding to the forwards convex part 21 is inwards concave to form a positioning groove 101, a central guide hole 102 is arranged in the middle area in the axial direction of the inwards concave positioning sleeve 1, an inwards concave positioning cavity 103 is arranged at the rear end of the axially concave positioning sleeve 1, a locking nut 3 is fixedly arranged in the inwards concave positioning cavity 103, and the internal thread of the locking nut 3; the convex positioning sleeve 2 comprises a front convex sleeve 201 and a rear convex sleeve 202, the rear end of the front convex sleeve 201 is provided with a rear convex external thread, the front end inner hole of the rear convex sleeve 202 is provided with a connecting internal thread, the rear end of the front convex sleeve 201 and the front end inner hole of the rear convex sleeve 202 are in threaded connection to form an integral structure and an inner guide hole 22, the center of a front end plate 23 of the front convex sleeve 201 is provided with a first central through hole 24, the center of a rear end plate 25 of the rear convex sleeve 202 is provided with a second central through hole 26, the convex positioning sleeve further comprises a connecting stud 4 and a compression spring, the front end of the connecting stud 4 is a threaded part 41, the outer ring of the middle section in the length direction of the connecting stud 4 is provided with a side convex positioning ring 42, the rear end of the connecting stud 4 is exposed after penetrating through the second central through hole 26 and extends to the outer end surface of the corresponding structure of the corresponding second splicing piece, the outer ring surface of the connecting stud 4 exposed, the compression spring is located in the region of the inner guide bore 22 of the male locating bush.
The front end of the compression spring is propped against the front end plate 23, the rear end of the compression spring is propped against the side convex positioning ring 42, the threaded part 41 of the connecting stud 4 is retracted into the inner guide hole 22 in the unconnected state, and the threaded part of the connecting stud 4 penetrates through the first central through hole 24 and the central guide hole 102 in the connected state and then is in threaded connection with the internal thread of the locking nut 3.
The front end of the compression spring is propped on the side convex positioning ring 42, the rear end of the compression spring is propped on the rear end plate 25, the threaded part 41 of the connecting stud 4 in the unconnected state is protruded in front of the inner guide hole 22, and the threaded part 41 of the connecting stud 4 in the connected state penetrates through the central guide hole 102 and then is in threaded connection with the internal thread of the locking nut 3;
the outer diameter of the front convex sleeve 201 is the same as that of the rear convex sleeve 202, and the front convex sleeve and the rear convex sleeve are in threaded connection to form a columnar structure;
the outer diameter of the front convex sleeve 201 is smaller than that of the rear convex sleeve 202, the front convex sleeve 201 is the front convex part 21, the outer diameter of the rear convex sleeve 202 is the same as that of the inner concave positioning sleeve 1, and the lengths of the outer diameters are the same, so that positioning holes in the two splicing pieces are the same, holes do not need to be drilled by different tools, and the processing is relatively simple;
the outer diameter of the connecting stud 4 is smaller than the first central through hole 24 and the second central through hole 26, and a gap 5 is reserved between the side convex positioning ring 42 of the connecting stud 4 and the inner ring wall of the inner guide hole 22 of the convex positioning sleeve 2, so that when an error exists in the process of opening a hole, the error can be overcome through radial adjustment of the connecting stud 4, and the splicing pieces can be assembled quickly and conveniently;
the front end of the connecting stud 4 is of a cylindrical structure;
the front end of the connecting stud 4 is specifically a conical head structure 6 which is closed from back to front, so that the connecting stud 4 is quick and convenient when the center is centered;
the driving structure is specifically a pull handle structure 7, two connectors of the pull handle structure 7 are respectively and fixedly connected to corresponding positions of the outer peripheral surface exposed at the rear end of the connecting stud 4, and an installer drives the connecting stud to rotate through the pull handle structure 7 to complete screwing or unscrewing actions;
the driving structure is specifically a bolt head-shaped structure 8, the exposed part of the rear end of the connecting stud is the bolt head-shaped structure, the shape of the bolt head includes but is not limited to hexagon and quadrangle, and an installer drives the connecting stud 4 to rotate through a wrench to complete screwing or unscrewing actions;
the driving structure is specifically an inner groove 9 arranged on the rear end face of the connecting stud 4, the shape of the inner groove 9 includes but is not limited to a straight groove, a cross groove and a star-shaped groove, and an installer drives the connecting stud 4 to rotate through a screwdriver of a corresponding type to complete screwing or unscrewing actions;
the compression spring is specifically a whole linear spring 10, and the linear spring 10 is sleeved in the corresponding area of the connecting stud 4;
the compression spring is formed by combining a plurality of spring columns 11 annularly distributed on the periphery of the connecting stud 1, and pressure stability and reliability are ensured.
The first specific embodiment is shown in fig. 1: the front end of the connecting stud 4 is of a cylindrical structure; the driving structure is specifically a pull handle structure 7, two connectors of the pull handle structure 7 are respectively and fixedly connected to corresponding positions of the outer peripheral surface exposed at the rear end of the connecting stud 4, and an installer drives the connecting stud 4 to rotate through the pull handle structure 7 to complete screwing or unscrewing actions; the compression spring is specifically a whole linear spring 10, the linear spring 10 is sleeved in the corresponding area of the connecting stud 4 and is arranged, the front end of the linear spring 10 is arranged on the front end plate in a propping mode, the rear end of the linear spring 10 is arranged on the side convex positioning ring in a propping mode, the outer diameter of the front convex sleeve 201 is the same as that of the rear convex sleeve 202, and the front convex sleeve 201 and the rear convex sleeve 202 are in threaded connection to form a columnar structure.
The second embodiment is shown in fig. 2, 4 and 5: the front end of the connecting stud 4 is of a cylindrical structure; the driving structure is specifically a bolt head-shaped structure 8, the exposed part at the rear end of the connecting stud is a hexagonal bolt head-shaped structure, and an installer drives the connecting stud to rotate through a wrench to complete screwing or unscrewing actions; meanwhile, the rear end face of the hexagonal bolt head is provided with an inner groove 9, the inner groove 9 is in the shape of a cross groove, the front end face of the connecting stud is provided with an inner concave cross groove, so that both ends of the connecting stud can rotate, once one end of the connecting stud slides and the other end of the connecting stud can rotate for later use, an installer drives the connecting stud to rotate through a cross screwdriver to complete screwing or unscrewing actions; the compression spring is formed by combining a plurality of spring columns 11 which are annularly distributed on the periphery of the connecting stud 4, the compression spring ensures stable and reliable pressure, the front end of each spring column 11 is propped against the front end plate, the rear end of each spring column 11 is propped against the side convex positioning ring, the outer diameter of the front convex sleeve 201 is smaller than that of the rear convex sleeve 202, the front convex sleeve 201 is the front convex part 21, the outer diameter of the rear convex sleeve 202 is the same as that of the concave positioning sleeve 1, the lengths of the rear convex sleeve 202 are the same, positioning holes in two splicing pieces are the same, holes do not need to be drilled by different tools, and the processing is relatively simple.
The third specific embodiment is shown in fig. 3: the front end of the connecting stud 4 is specifically a conical head structure 6 which is closed from back to front, so that the connecting stud 4 is quick and convenient when the center is centered; the driving structure is specifically a pull handle structure 7, two connectors of the pull handle structure 7 are respectively and fixedly connected to corresponding positions of the outer peripheral surface exposed at the rear end of the connecting stud 4, and an installer drives the connecting stud 4 to rotate through the pull handle structure 7 to complete screwing or unscrewing actions; the compression spring is specifically a whole linear spring 10, the linear spring 10 is sleeved in a corresponding area of the connecting stud 4 and is arranged, the front end of the linear spring 10 is abutted to the side convex positioning ring, the rear end of the linear spring 11 is abutted to the rear end plate, the outer diameter of the front convex sleeve 201 is smaller than that of the rear convex sleeve 202, the front convex sleeve 201 is the front convex part 21, the outer diameter of the rear convex sleeve 202 is the same as that of the inner concave positioning sleeve 1, the lengths of the rear convex sleeve and the inner concave positioning sleeve are the same, positioning holes in two splicing parts are the same, holes do not need to be opened by different tools, and machining is.
The working principle is as follows: because the convex positioning sleeve comprises a front convex sleeve and a rear convex sleeve, the rear end of the front convex sleeve is provided with a rear convex external thread, the front end inner hole of the rear convex sleeve is provided with a connecting internal thread, the rear end of the front convex sleeve and the front end inner hole of the rear convex sleeve are in threaded connection to form an integral structure and an internal guide hole, the center of the front end plate of the front convex sleeve is provided with a first central through hole, and the center of the rear end plate of the rear convex sleeve is provided with a second central through hole, the connection of the convex positioning sleeve is simple and convenient, after the alignment holes of the first splicing member and the second splicing member are aligned, the front end of the connecting stud is inserted into the alignment central guide hole, so that the front convex part is inserted into the positioning groove, then the driving structure is rotated to drive the threaded part of the connecting stud and the locking nut to complete the fastening connection, and simultaneously the first splicing member and the second splicing member to complete the splicing fastening position, when, the second splicing piece and the first splicing piece can be directly separated only by rotating the driving structure again to separate the connecting stud from the concave positioning sleeve; the connecting structure is suitable for the mutual connection of two frames, the connection between enclosing plates with the frames and the connection between one frame and one plate; it can fast assembly evagination position sleeve, and then two adjacent splicers of high-efficient accurate location, and its make things convenient for the dismouting, still guarantees positioning accuracy and location firmness after many times of dismouting.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (10)
1. A positioning connection, characterized in that: the positioning device comprises an inwards concave positioning sleeve and an outwards convex positioning sleeve, wherein the inwards concave positioning sleeve is integrally and fixedly arranged in a first positioning hole of a first splicing piece, the outwards convex positioning sleeve is fixedly arranged in a second positioning hole of a second splicing piece, the end surface of the outwards convex positioning sleeve, facing the inwards concave positioning sleeve, is forwards convex relative to the corresponding end surface of the second positioning hole to form a forwards convex part, the inwards concave positioning sleeve is inwards concave in a region corresponding to the forwards convex part to form a positioning groove, a central guide hole is arranged in the middle region in the axial direction of the inwards concave positioning sleeve, an inwards concave positioning cavity is arranged at the rear end in the axial direction of the inwards concave positioning sleeve, a locking nut is fixedly arranged in the inwards concave positioning cavity, and the internal thread of the locking nut and the central guide hole; the outer convex positioning sleeve comprises a front convex sleeve and a rear convex sleeve, the rear end of the front convex sleeve is provided with a rear convex external thread, the front end inner hole of the rear convex sleeve is provided with a connecting internal thread, the rear end of the front convex sleeve and the front end inner hole of the rear convex sleeve are in threaded connection to form an integral structure and an inner guide hole, the center of the front end plate of the front convex sleeve is provided with a first central through hole, the center of the rear end plate of the rear convex sleeve is provided with a second central through hole, the outer ring of the middle section of the connecting stud in the length direction is provided with a side convex positioning ring, the rear end of the connecting stud penetrates through the second central through hole and is exposed out and extends to the outer end face of the corresponding structure of the corresponding second splicing member, and the outer ring face of the connecting stud exposed out of the corresponding structure of the second splicing member is provided with a driving structure, the compression spring is located in the area of the inner guide hole of the convex positioning sleeve.
2. A positioning connection as claimed in claim 1, wherein: the front end of the compression spring is mounted on the front end plate in a propping mode, the rear end of the compression spring is mounted on the side convex positioning ring in a propping mode, the threaded portion of the connecting stud is retracted into the inner guide hole in an unconnected state, and the threaded portion of the connecting stud penetrates through the first central through hole and the rear portion of the central guide hole to be in threaded connection with the internal thread of the locking nut in a connected state.
3. A positioning connection as claimed in claim 1, wherein: the front end of the compression spring is jacked on the side convex positioning ring, the rear end of the compression spring is jacked on the rear end plate, the threaded part of the connecting stud is protruded in front of the inner guide hole in the unconnected state, and the threaded part of the connecting stud penetrates through the central guide hole in the connected state and is then in threaded connection with the inner thread of the locking nut.
4. A positioning connection according to claim 2 or 3, wherein: the outer diameter of the front convex sleeve is the same as that of the rear convex sleeve, and the front convex sleeve and the rear convex sleeve are in threaded connection to form a columnar structure.
5. A positioning connection according to claim 2 or 3, wherein: the outer diameter of the front convex sleeve is smaller than that of the rear convex sleeve, the front convex sleeve is a front convex part, and the outer diameter of the rear convex sleeve is the same as that of the inner concave positioning sleeve and is the same in length.
6. A positioning connection as claimed in claim 1, wherein: the outer diameter of the connecting stud is smaller than the first center through hole and the second center through hole, and gaps are reserved on the side convex positioning ring of the connecting stud and the inner ring wall of the inner guide hole of the convex positioning sleeve.
7. A positioning connection as claimed in claim 1, wherein: the front end of the connecting stud is specifically a conical head structure with a cylindrical structure closing in from back to front.
8. A positioning connection as claimed in claim 1, wherein: the driving structure is a pull handle structure; the driving structure is a bolt head-shaped structure, the exposed part of the rear end of the connecting stud is a bolt head-shaped structure, and the bolt head shape includes but is not limited to hexagon and quadrangle; the driving structure is an inner groove formed in the rear end face of the connecting stud, and the shape of the inner groove comprises but is not limited to a straight groove, a cross groove and a star-shaped groove.
9. A positioning connection as claimed in claim 1, wherein: the compression spring is specifically a whole linear spring, and the linear spring is sleeved in the corresponding area of the connecting stud and arranged.
10. A positioning connection as claimed in claim 1, wherein: the compression spring is formed by combining a plurality of spring columns which are annularly distributed on the periphery of the connecting stud.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020264788.8U CN211951100U (en) | 2020-03-06 | 2020-03-06 | Positioning connecting piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020264788.8U CN211951100U (en) | 2020-03-06 | 2020-03-06 | Positioning connecting piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211951100U true CN211951100U (en) | 2020-11-17 |
Family
ID=73194205
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020264788.8U Active CN211951100U (en) | 2020-03-06 | 2020-03-06 | Positioning connecting piece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211951100U (en) |
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2020
- 2020-03-06 CN CN202020264788.8U patent/CN211951100U/en active Active
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