Assembly device

By designing an assembly device including a support seat and a cover plate, using the design of the load groove and through hole, the problem of assembly deviation of the case and hinge in the folding display device is solved, and the reliability of the device is improved.

CN223012404UActive Publication Date: 2025-06-24BEIJING XIAOMI MOBILE SOFTWARE CO LTD
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Patent Information

Application Number
CN202420525630.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-03-18
Publication Date
2025-06-24
Estimated Expiration
2034-03-18

AI Technical Summary

Technical Problem

During the preparation of the folding display device, it is difficult to assemble the case and hinge in the folding housing, and there is a tendency to be deviations, resulting in the low reliability of the produced folding display device.

Method used

An assembly device is provided, including a support seat and a cover plate, which has a bearing groove for carrying the folded housing to be assembled, connecting the fastener with the connecting hole through the guide of a plurality of through holes, limiting movement of the housing and hinges, and ensuring the accuracy of assembly.

Benefits of technology

Through the use of this assembly device, it is possible to ensure that the connection between the case and the hinge of the folded housing does not cause deviation, and the reliability of the folded display device is improved.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an assembling device, and belongs to the field of folding display equipment. The assembling device comprises a supporting seat and a cover plate. Due to the fact that the bearing groove of the supporting seat can be used for bearing the folding shell to be assembled, in the assembling process of the folding shell to be assembled, a machine shell and a hinge in the folding shell to be assembled are limited in the bearing groove of the supporting seat. Therefore, under the guidance of the plurality of through holes in the assembling device, in the process of connecting the fasteners with the corresponding connecting holes, the enclosure and the hinge in the folding shell to be assembled do not move, so that the connection between the enclosure and the hinge which are assembled does not generate deviation. In this way, the folding shell assembled through the assembling device can have higher reliability.
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Description

Technical Field

[0001] The present application relates to the technical field of foldable display devices, and in particular to an assembly device. Background Art

[0002] With the development of terminal technology, more and more foldable terminal devices are appearing on the market. Foldable terminal devices are usually called foldable display devices. Foldable display devices can realize the switching of the physical size of terminal devices, bringing a better user experience.

[0003] At present, a foldable display device generally includes: a foldable housing, and a foldable display device connected to the foldable housing. The foldable housing includes: two housings, and a hinge for connecting the two housings. The two housings can be relatively rotated by the hinge to drive the foldable display device to fold or unfold as a whole. Therefore, the coordination between the housing and the hinge in the foldable housing is the key to the folding and unfolding of the foldable display device.

[0004] However, in the preparation process of the folding display device, the assembly of the housing and the hinge in the folding shell is relatively difficult, and the assembled housing and the hinge are prone to deviations, resulting in low reliability of the produced folding display device. Utility Model Content

[0005] The embodiment of the present application provides an assembly device, which can solve the problem of easy deviation in assembling folding display devices in the prior art. The technical solution is as follows:

[0006] An assembly device is provided, comprising: a support seat and a cover plate;

[0007] The support base has a bearing groove, and the bearing groove is used to bear the folding shell to be assembled, and the folding shell includes: two shells arranged side by side, and a hinge located between the two shells, and the folding shell has a plurality of connection holes for connecting the shells and the hinges;

[0008] The cover plate is located on one side of the support base where the bearing groove is arranged, and the cover plate is detachably connected to the support base;

[0009] Among them, the side of the support seat facing away from the cover plate has a plurality of first through holes, and / or the side of the cover plate facing away from the support seat has a plurality of second through holes; after the supporting groove supports the folding shell and the cover plate is connected to the support seat, at least one of the plurality of first through holes and the plurality of second through holes is connected to the plurality of connecting holes accordingly.

[0010] Optionally, the assembly device further includes: a plurality of first magnetic attraction portions, and a plurality of second magnetic attraction portions corresponding one-to-one to the plurality of first magnetic attraction portions;

[0011] The plurality of first magnetic attraction parts are all fixed on a side of the support seat where the bearing slot is provided; the plurality of second magnetic attraction parts are all movably connected to the cover plate;

[0012] Among them, after the second magnetic attraction part moves relative to the cover plate so that the second magnetic attraction part and the corresponding first magnetic attraction part are aligned, the second magnetic attraction part and the corresponding first magnetic attraction part are magnetically connected; after the second magnetic attraction part moves relative to the cover plate so that the second magnetic attraction part and the corresponding first magnetic attraction part are misaligned, the second magnetic attraction part and the corresponding first magnetic attraction part are disconnected.

[0013] Optionally, the cover plate has a plurality of hollow grooves corresponding to the plurality of second magnetic attraction portions one by one, and each of the second magnetic attraction portions is slidably connected to the cover plate in the corresponding hollow groove;

[0014] Among them, the multiple hollow grooves also correspond one-to-one to the multiple first magnetic attraction parts, and the orthographic projection of each of the first magnetic attraction parts on the support base is located within the orthographic projection of the corresponding hollow groove on the support base.

[0015] Optionally, the assembly device further comprises: a first slide rail and a second slide rail fixed in the hollow groove and arranged opposite to each other;

[0016] The second magnetic attraction portion includes: a sliding block located between the first sliding rail and the second sliding rail, and a second magnet fixedly connected to the sliding block, and the sliding block is slidably connected to the first sliding rail and the second sliding rail.

[0017] Optionally, the first slide rail has an elastic limiting protrusion on one side facing the second slide rail, and the sliding block has a clamping hole matching the elastic limiting protrusion;

[0018] Wherein, after at least a portion of the elastic limiting protrusion extends into the clamping hole, the second magnet is misaligned with the first magnetic attraction portion.

[0019] Optionally, the assembly device further comprises: two clamping assemblies arranged opposite to each other, the two clamping assemblies being connected to one side of the support seat where the bearing groove is arranged;

[0020] After the bearing groove carries the folding shell, the two clamping assemblies are respectively distributed on one side of the two housings away from the hinge, and the clamping assemblies are used to apply a clamping force toward the hinge to the adjacent housings.

[0021] Optionally, each of the clamping assemblies includes: at least two clamping parts arranged side by side, at least two first elastic parts corresponding to the at least two clamping parts one by one, and a driving part located between two adjacent clamping parts; the support base further has at least two communication grooves communicating with the bearing groove;

[0022] The at least two clamping parts correspond to the at least two communication grooves one by one. Each clamping part is slidably connected to the support base in the corresponding communication groove, and each clamping part can extend into the bearing groove through the corresponding communication groove; one side of the clamping part facing away from the bearing groove is connected to one end of the corresponding first elastic part, and one end of the first elastic part facing away from the clamping part can be limited by the support base; the driving part is connected to two adjacent clamping parts at the same time;

[0023] Wherein, the driving part is configured to: drive two adjacent clamping parts to move away from the bearing groove along a direction parallel to the extension direction of the communication groove at the same time, so that the corresponding first elastic part is in a compressed state.

[0024] Optionally, each of the clamping assemblies further includes: a connecting rod for connecting two adjacent clamping parts;

[0025] The driving part includes: a rotating part rotatably connected to the support base, a transition part fixedly connected to the side of the rotating part facing away from the support base, and a driving part fixedly connected to the side of the transition part facing away from the rotating part; the driving parts are relatively distributed closer to the support base than the transition part, and one side of the driving part facing away from the transition part has a driving inclined surface, the driving inclined surface is distributed towards the rotating part, and the driving inclined surface abuts against the connecting rod.

[0026] Optionally, the assembling device further includes: two sets of pressing assemblies arranged oppositely, each set of pressing assemblies includes at least one pressing assembly, and each pressing assembly is connected to the side of the support base where the bearing groove is arranged;

[0027] Wherein, after the folding shell is carried in the bearing groove, the two sets of pressing assemblies are respectively distributed at two opposite ends of the hinge, and each pressing assembly is used to apply a pressing force to the side of the part connecting the machine shell and the hinge facing away from the support base.

[0028] Optionally, each of the pressing assemblies includes: a rotating shaft, a second elastic part and a pressing part;

[0029] The first end of the rotating shaft is fixedly connected to the support base, and the rotating shaft is distributed near the bearing groove; both the second elastic part and the pressing part are sleeved on the rotating shaft, and the pressing part is closer to the support base than the second elastic part; one end of the second elastic part abuts against the second end of the rotating shaft, and the other end abuts against the pressing part; the pressing part can move along the axial direction of the rotating shaft on the rotating shaft, and the pressing part can also rotate around the rotating shaft;

[0030] Wherein, after the pressing part rotates around the rotating shaft, a part of the pressing part can extend into the bearing groove or the whole pressing part can move out of the bearing groove.

[0031] Optionally, the support base further has a connecting groove communicating with the bearing groove and a limiting groove communicating with the connecting groove, and the depth of the connecting groove is greater than the depth of the limiting groove;

[0032] The first end of the rotating shaft is fixedly connected to the support base in the connecting groove; the shape of the limiting groove matches the shape of the pressing part, and after the pressing part rotates around the rotating shaft into the limiting groove, the second elastic part is in a compressed state.

[0033] The beneficial effects brought by the technical solution provided by the embodiment of the present application at least include:

[0034] An assembling device includes: a support base and a cover plate. Since the bearing groove of the support base can be used to bear the folding shell to be assembled, during the assembly process of the folding shell to be assembled, the housing and the hinge in the folding shell to be assembled can be restricted in the bearing groove of the support base. Therefore, during the process of connecting the fastener to the corresponding connecting hole under the guidance of the plurality of through holes in the assembling device, the housing and the hinge in the folding shell to be assembled will not move, which makes the connection between the assembled housing and the hinge not deviate. In this way, the folding shell assembled by the assembling device can have higher reliability. Description of the Drawings

[0035] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained according to these drawings.

[0036] Figure 1 It is a schematic structural diagram of an assembling device provided by an embodiment of the present application;

[0037] Figure 2 is Figure 1Exploded view of the shown assembly device;

[0038] Figure 3 is a schematic structural diagram of another assembly device provided by an embodiment of the present application;

[0039] Figure 4 is an exploded view of an assembly device provided by an embodiment of the present application;

[0040] Figure 5 is a partial enlarged view of an assembly device provided by an embodiment of the present application;

[0041] Figure 6 is a schematic diagram of a carrier groove carrying a folding housing to be assembled provided by an embodiment of the present application;

[0042] Figure 7 is a schematic structural diagram of a clamping assembly provided by an embodiment of the present application;

[0043] Figure 8 is a schematic diagram of another carrier groove carrying a folding housing to be assembled provided by an embodiment of the present application;

[0044] Figure 9 is a partial enlarged view of another assembly device provided by an embodiment of the present application;

[0045] Figure 10 is a partial enlarged view of yet another assembly device provided by an embodiment of the present application;

[0046] Figure 11 is an exploded view of another assembly device provided by an embodiment of the present application;

[0047] Figure 12 is a schematic structural diagram of yet another assembly device provided by an embodiment of the present application. Detailed implementation manners

[0048] To make the objectives, technical solutions, and advantages of the present application clearer, the following will further describe the embodiments of the present application in detail with reference to the accompanying drawings.

[0049] An embodiment of the present application provides an assembly device. This assembly device can be used to assemble the folding housing in a foldable display device. Through this assembly device, the housing and hinge in the folding housing to be assembled can be fixed on the assembly device to assemble the housing and hinge in the folding housing to be assembled.

[0050] To more clearly see the structure of the assembly device, please refer to Figure 1 , Figure 1 is a schematic structural diagram of an assembly device provided by an embodiment of the present application. The assembly device 000 may include: a support base 100 and a cover plate 200.

[0051] Please refer to Figure 2 , Figure 2 yes Figure 1 1. An exploded view of an assembly device is shown. The support base 100 in the assembly device 000 may have a bearing slot K. The bearing slot K in the support base 100 may be used to bear the folding housing 001 to be assembled. The folding housing 001 to be assembled may include: two housings 011 arranged side by side, and a hinge 012 located between the two housings 011, and the folding housing 001 to be assembled may have a plurality of connection holes S for connecting the housings 011 and the hinges 012.

[0052] It should be noted that after the folding housing 001 to be assembled is located in the bearing groove K of the support seat 100, the distribution of the multiple connection holes S in the folding housing 001 to be assembled can be in the following three situations:

[0053] In the first case, the multiple connection holes S in the folding housing 001 to be assembled may be evenly distributed on a side of the folding housing 001 to be assembled that is away from the bearing groove K of the support seat 100 .

[0054] In the second case, the multiple connection holes S in the folding housing 001 to be assembled may be evenly distributed on the side of the folding housing 001 to be assembled facing the bearing groove K of the support seat 100 .

[0055] In the third case, a part of the multiple connecting holes S in the folding shell 001 to be assembled can be distributed on the side of the folding shell 001 to be assembled away from the bearing slot K of the support seat 100, while another part of the connecting holes S can be distributed on the side of the folding shell 001 to be assembled facing the bearing slot K of the support seat 100.

[0056] like Figure 1 and Figure 2 As shown, the cover plate 200 in the assembly device 000 can be located on the side of the support seat 100 where the bearing slot K is provided, and the cover plate 200 in the assembly device 000 and the support seat 100 can be detachably connected. In this way, after the bearing slot K of the support seat 100 carries the folding shell 001 to be assembled, the cover plate 200 in the assembly device 000 can be connected with the support seat 100, so that the folding shell 001 to be assembled can be assembled by the assembly device 000. After the folding shell 001 to be assembled is assembled, the cover plate 200 in the assembly device 000 can be disconnected from the support seat 100, so that the cover plate 200 can be separated from the support seat 100, and thus, the assembled folding shell can be taken out from the bearing slot K of the support seat 100.

[0057] Among them, please refer to Figure 1 and Figure 3 , Figure 3It is a schematic structural diagram of another assembling device provided by an embodiment of the present application. On the side of the support base 100 in the assembling device 000 facing away from the cover plate 200, there may be a plurality of first through holes P1, and / or, on the side of the cover plate 200 in the assembling device 000 facing away from the support base 100, there may be a plurality of second through holes P2. After the folding housing 001 to be assembled is carried in the carrying groove K of the support base 100 and the cover plate 200 in the assembling device 000 is connected to the support base 100, at least one of the plurality of first through holes P1 in the support base 100 and the plurality of second through holes P2 in the cover plate 200 may be correspondingly communicated with a plurality of connection holes S in the folding housing 001 to be assembled.

[0058] It should be noted that the plurality of connection holes S distributed on the side of the folding housing 001 to be assembled facing away from the carrying groove K of the support base 100 may be correspondingly communicated with the plurality of second through holes P2 of the cover plate 200. The plurality of connection holes S distributed on the side of the folding housing 001 to be assembled facing the carrying groove K of the support base 100 may be correspondingly communicated with the plurality of first through holes P1 of the support base 100.

[0059] It should also be noted that the housing 011 and the hinge 012 in the folding housing 001 to be assembled may be connected together by fasteners connected to the connection holes S. By way of example, the fasteners and the connection holes S for connecting the housing 011 and the hinge 012 in the folding housing 001 to be assembled may be screws and threaded holes respectively. In this way, the housing 011 and the hinge 012 in the folding housing 001 to be assembled can be connected together by connecting a plurality of screws to the corresponding threaded holes.

[0060] In this way, after at least one of the plurality of first through holes P1 in the support base 100 and the plurality of second through holes P2 in the cover plate 200 is correspondingly communicated with the plurality of connection holes S in the folding housing 001 to be assembled, the fasteners to be connected to the connection holes S can be connected to the corresponding connection holes S under the guidance of the plurality of first through holes P1 in the support base 100 and / or the plurality of second through holes P2 in the cover plate 200. In this way, the housing 011 and the hinge 012 in the folding housing 001 to be assembled can be connected together by fasteners.

[0061] In the present application, since the bearing groove K of the support base 100 can be used to bear the folding housing 001 to be assembled, during the assembly process of the folding housing 001 to be assembled, the housing 011 and the hinge 012 in the folding housing 001 to be assembled can be restricted within the bearing groove K of the support base 100. For this purpose, during the process of connecting the fastener to the corresponding connection hole S under the guidance of the multiple through holes in the assembly device 000, the housing 011 and the hinge 012 in the folding housing 001 to be assembled will not move, which makes the connection between the assembled housing and the hinge free from deviation. Thus, the folding housing assembled by the assembly device 000 can have higher reliability.

[0062] In summary, the embodiment of the present application provides an assembly device, including: a support base and a cover plate. Since the bearing groove of the support base can be used to bear the folding housing to be assembled, during the assembly process of the folding housing to be assembled, the housing and the hinge in the folding housing to be assembled can be restricted within the bearing groove of the support base. For this purpose, during the process of connecting the fastener to the corresponding connection hole under the guidance of the multiple through holes in the assembly device, the housing and the hinge in the folding housing to be assembled will not move, which makes the connection between the assembled housing and the hinge free from deviation. Thus, the folding housing assembled by the assembly device can have higher reliability.

[0063] Optionally, please refer to Figure 4 , Figure 4 which is an exploded view of an assembly device provided by an embodiment of the present application. The assembly device 000 may further include: a plurality of first magnetic attraction parts 300, and a plurality of second magnetic attraction parts 400 corresponding to the plurality of first magnetic attraction parts 300 one by one. The plurality of first magnetic attraction parts 300 in the assembly device 000 may all be fixed on one side of the support base 100 where the bearing groove K is provided. The plurality of second magnetic attraction parts 400 in the assembly device 000 may all be movably connected to the cover plate 200.

[0064] Wherein, when the second magnetic attraction part 400 in the assembly device 000 moves relative to the cover plate 200 so that the second magnetic attraction part 400 and the corresponding first magnetic attraction part 300 are aligned, the second magnetic attraction part 400 can be magnetically connected to the corresponding first magnetic attraction part 300. In this way, through the magnetic connection between the first magnetic attraction part 300 fixed on the support base 100 and the second magnetic attraction part 400, the support base 100 can be connected to the cover plate 200, enabling the folding housing 001 to be assembled through the assembly device 000.

[0065] In the assembly device 000, the second magnetic attraction part 400 moves relative to the cover plate 200. After the second magnetic attraction part 400 and the corresponding first magnetic attraction part 300 are misaligned, the connection between the second magnetic attraction part 400 and the corresponding first magnetic attraction part 300 can be cancelled. In this way, the connection between the support base 100 and the cover plate 200 can also be cancelled, so that the support base 100 can be separated from the cover plate 200, and then the assembled folding shell can be taken out from the bearing groove K of the support base 100.

[0066] It should be noted that the multiple first magnetic attraction parts 300 fixedly connected to the support base 100 can include a first magnet 301, and the multiple second magnetic attraction parts 400 movably connected to the cover plate 200 can include a second magnet 401. Among them, the first magnet 301 in the first magnetic attraction part 300 can be fixed on the support base 100, and the second magnet 401 in the second magnetic attraction part 400 can move relative to the cover plate 200. In this way, after the second magnet 401 is aligned with the first magnet 301, the second magnet 401 can be magnetically attracted and connected to the first magnet 301, so that the cover plate 200 can be connected to the support base 100. After the second magnet 401 is misaligned with the first magnet 301, the magnetic attraction connection between the second magnet 401 and the first magnet 301 can be cancelled, so that the cover plate 200 can be separated from the support base 100.

[0067] Exemplarily, the first magnet 301 and the second magnet 401 can both be permanent magnets, and the magnetism on the side of the first magnet 301 facing the second magnet 401 is opposite to the magnetism on the side of the second magnet 401 facing the first magnet 301.

[0068] In the present application, as Figure 4 shown, the cover plate 200 in the assembly device 000 can have a plurality of hollow slots H corresponding one by one to the plurality of second magnetic attraction parts 400. Each second magnetic attraction part 400 in the assembly device 000 can be slidably connected to the cover plate 200 in the corresponding hollow slot H. Among them, the plurality of hollow slots H in the cover plate 200 can also correspond one by one to the plurality of first magnetic attraction parts 300 in the assembly device 000. And the orthographic projection of each first magnetic attraction part 300 in the assembly device 000 on the support base 100 can be located within the orthographic projection of the corresponding hollow slot H on the support base 100.

[0069] In this way, since each second magnetic attraction part 400 in the assembling device 000 is slidably connected to the cover plate 200 within the corresponding hollow groove H, each second magnet 401 in each second magnetic attraction part 400 can only move relative to the cover plate 200 within the corresponding hollow groove H. Also, since the orthographic projection of each first magnetic attraction part 300 in the assembling device 000 on the support base 100 is located within the orthographic projection of the corresponding hollow groove H on the support base 100, each first magnet 301 in each first magnetic attraction part 300 is also located within the orthographic projection of the hollow groove H on the support base 100. For this reason, the second magnet 401 in the second magnetic attraction part 400 and the first magnet 301 in the first magnetic attraction part 300 can be aligned and misaligned within the orthographic projection of the hollow groove H on the support base 100.

[0070] In the present application, please refer to Figure 5 , Figure 5 which is a partial enlarged view of an assembling device provided by an embodiment of the present application. The assembling device 000 may further include: a first slide rail 500 and a second slide rail 600 that are fixed within the hollow groove H in the cover plate 200 and are oppositely arranged. The second magnetic attraction part 400 in the assembling device 000 may include: a slider 402 located between the first slide rail 500 and the second slide rail 600, and a second magnet 401 fixedly connected to the slider 402. The slider 402 in the second magnetic attraction part 400 may be slidably connected to the first slide rail 500 and the second slide rail 600 in the assembling device 000.

[0071] It should be noted that one side of the support base 100 where the bearing groove K is provided may have a first installation groove, and the first magnet 301 in the first magnetic attraction part 300 may be fixed within the first installation groove by an embedding method. The slider 402 in the second magnetic attraction part 400 may have a second installation groove, and the second magnet 401 in the second magnetic attraction part 400 may be fixed within the second installation groove by an embedding method. In this way, through the sliding connection of the slider 402 in the second magnetic attraction part 400 with the first slide rail 500 and the second slide rail 600 in the assembling device 000, the second magnet 401 fixed on the slider 402 can move relative to the cover plate 200. For this reason, the second magnet 401 in the second magnetic attraction part 400 can achieve alignment and misalignment with the first magnet 301 in the first magnetic attraction part 300 by moving relative to the cover plate 200.

[0072] Optionally, as Figure 5As shown, the first slide rail 500 in the assembly device 000 may have an elastic limiting protrusion 501 on one side facing the second slide rail 600, and the slider 402 in the second magnetic attraction part 400 may have a snap-in hole (not shown in the figure) that matches the elastic limiting protrusion 501. After at least part of the elastic limiting protrusion 501 extends into the snap-in hole of the slider 402, the second magnet 401 in the second magnetic attraction part 400 may be misaligned with the first magnetic attraction part 300.

[0073] In this way, after at least part of the elastic limiting protrusion 501 extends into the engaging hole of the slider 402, the cover plate 200 can be separated from the support base 100. And in the process of separating the cover plate 200 from the support base 100, the slider 402 in the second magnetic attraction portion 400 can be always limited by the elastic limiting protrusion 501 to the position where the second magnet 401 and the first magnet 301 are misaligned. This makes it possible that in the process of separating the cover plate 200 from the support base 100, the second magnet 401, which is in a position misaligned with the first magnet 301, will no longer move to a position aligned with the first magnet 301, which avoids the problem of difficulty in separating the cover plate 200 from the support base 100 due to the sliding of the slider 402.

[0074] In addition, after the bearing groove K of the support base 100 carries the folding shell 001 to be assembled and the cover plate 200 is placed on the support base 100, since the elastic limiting protrusion 501 is an elastic component, after applying force to slide the slider 402, the elastic limiting protrusion 501 can slide out of the clamping hole of the slider 402, so that the slider 402 can continue to slide relative to the cover body 200 through the sliding connection with the first slide rail 500 and the second slide rail 600 in the assembly device 000. To this end, the second magnet 401, which is at a position misaligned with the first magnet 301, can be moved to a position aligned with the first magnet 301, so that the cover plate 200 can be connected to the support base 100 through the magnetic connection between the second magnet 401 and the first magnet 301.

[0075] It should be noted that the second magnetic attraction portion 400 may further include: a handle 403 fixedly connected to the slider 402, and the handle 403 in the second magnetic attraction portion 400 may be located on the side of the cover plate 200 away from the support base 100. In this way, the slider 402 may be moved by applying force to the handle 403 in the second magnetic attraction portion 400.

[0076] In this application, please refer to Figure 6 , Figure 6It is a schematic diagram of a carrier groove provided by an embodiment of the present application, carrying a folding housing to be assembled. The assembly device 000 may further include: two clamping components 700 arranged oppositely. The two clamping components 700 in the assembly device 000 may be connected to one side of the support base 100 where the carrier groove K is provided. Among them, after the folding housing 001 to be assembled is carried in the carrier groove K of the support base 100, the two clamping components 700 in the assembly device 000 may be respectively distributed on one side of the two casings 011 in the folding housing 001 to be assembled, which is away from the hinge 012, and the clamping component 700 in the assembly device 000 may be used to apply a clamping force towards the hinge 012 to the adjacent casings 011 in the folding housing 001 to be assembled. In this way, the folding housing 001 to be assembled located in the carrier groove K can be clamped in the carrier groove K by the two clamping components 700 in the assembly device 000. For this reason, during the assembly process of the folding housing 001 to be assembled, the casings 011 and the hinge 012 in the folding housing 001 to be assembled will not move, which makes the connection between the assembled casings and the hinge not deviate, and further makes the assembled folding housing have higher reliability.

[0077] Optionally, as Figure 6 shown, each clamping component 700 in the assembly device 000 may include: at least two clamping parts 701 arranged side by side, at least two first elastic parts 702 (not shown in the figure) corresponding to the at least two clamping parts 701 in the clamping component 700 one by one, and a driving part 703 located between two adjacent clamping parts 701. The support base 100 in the assembly device 000 may further have at least two communication grooves M communicating with the carrier groove K. The at least two clamping parts 701 in each clamping component 700 may correspond to the at least two communication grooves M of the support base 100 one by one. Each clamping part 701 in the clamping component 700 may be slidably connected to the support base 100 in the corresponding communication groove M, and each clamping part 701 in the clamping component 700 can extend into the carrier groove K through the corresponding communication groove M. Here, the clamping part 701 extending into the carrier groove K can clamp the folding housing 011 to be assembled located in the carrier groove K, so that the folding housing 001 to be assembled can be assembled by this assembly device 000. After the casings 011 and the hinge 012 in the folding housing 001 to be assembled are assembled, the clamping part 701 extending into the carrier groove K can slide relative to the support base 100 in the corresponding communication groove M to move out of the carrier groove K. For this reason, the clamping part 701 can cancel the clamping of the assembled folding housing located in the carrier groove K, so that the assembled folding housing can be taken out of the carrier groove K.

[0078] Optionally, please refer to Figure 7 , Figure 7It is a schematic structural diagram of a clamping assembly provided by an embodiment of the present application. One side of the clamping portion 701 in the clamping assembly 700 facing away from the bearing groove K can be connected to one end of the corresponding first elastic portion 702. One end of the first elastic portion 702 in the clamping assembly 700 facing away from the clamping portion 701 can be limited by the support seat 100. Here, each clamping assembly 700 in the assembly device 000 may further include: at least two limiting portions 704 fixedly connected to the support seat 100. At least two limiting portions 704 in each clamping assembly 700 can correspond to at least two clamping portions 701 one by one. The limiting portion 704 in the clamping assembly 700 can be located on the side of the clamping portion 701 facing away from the bearing groove K. One end of the first elastic portion 702 facing away from the clamping portion 701 can be connected to the limiting portion 704.

[0079] Among them, as Figure 6 and Figure 7 shown, the driving portion 703 in the clamping assembly 700 can be configured to: simultaneously drive at least two clamping portions 701 in the clamping assembly 700 to move away from the bearing groove K in a direction parallel to the extension direction of the communication groove M, so that the corresponding first elastic portion 702 can be in a compressed state. Here, when the driving portion 703 in the clamping assembly 700 drives the clamping portion 701 to move away from the bearing groove K until the clamping portion 701 is removed from the bearing groove K, the folding shell 001 to be assembled can be placed into the bearing groove K. After the bearing groove K bears the folding shell 001 to be assembled, since the corresponding first elastic portion 702 is in a compressed state and one end of the first elastic portion 702 facing away from the clamping portion 701 is limited by the limiting portion 704. Therefore, the first elastic portion 702 in the compressed state can drive the clamping portion 701 to move towards the bearing groove K in a direction parallel to the extension direction of the communication groove M, so that the clamping portion 701 can extend into the bearing groove K to clamp the folding shell 001 to be assembled located in the bearing groove K.

[0080] Then, after the folding shell 001 to be assembled is assembled by the assembly device 000, the driving portion 703 can drive the clamping portion 701 to move away from the bearing groove K in a direction parallel to the extension direction of the communication groove M, so that the clamping portion 701 can be removed from the bearing groove K to cancel the clamping of the assembled folding shell by the clamping portion 701, so that the assembled folding shell can be taken out of the bearing groove K.

[0081] Optionally, as Figure 7As shown, each clamping assembly 700 in the assembling device 000 may further include: a connecting rod 705 for connecting two adjacent clamping parts 701 in the clamping assembly 700. The driving part 703 in the clamping assembly 700 may include: a rotating member 7031 rotatably connected to the support base 100, a transition member 7032 fixedly connected to a side of the rotating member 7031 facing away from the support base 100, and a driving member 7033 fixedly connected to a side of the transition member 7032 facing away from the rotating member 7031. The driving member 7033 in the driving part 703 may be closer to the support base 100 relative to the transition member 7032, and a driving inclined surface O may be provided on a side of the driving member 7033 facing away from the transition member 7032. The driving inclined surface O of the driving member 7033 may be distributed towards the rotating member 7031 in the driving part 703, and the driving inclined surface O of the driving member 7033 may be in contact with the connecting rod 705 in the clamping assembly 700.

[0082] It should be noted that, as Figure 7 shown, the driving part 703 in the clamping assembly 700 may further include: a rotating rod 7034. The rotating rod 7034 in the driving part 703 may be fixed to the support base 100, and the rotating member 7031 in the driving part 703 may be sleeved on the rotating rod 7034. The rotating member 7031 in the driving part 703 may be rotatably connected to the support base 100 by rotating around the rotating rod 7034.

[0083] When the driving part 703 in the clamping assembly 700 needs to drive the clamping part 701 to move away from the bearing groove K in a direction parallel to the extension direction of the communication groove M, a force towards the support base 100 may be applied to an end of the transition member 7032 in the driving part 703 facing the driving member 7033, so that the rotating member 7031 in the driving part 703 can rotate towards the bearing groove K relative to the support base 100, and further the end of the driving member 7033 in the driving part 703 facing away from the transition member 7032 can rotate away from the bearing groove K. Since the driving inclined surface O on the side of the driving member 7033 facing away from the transition member 7032 is distributed towards the rotating member 7031, that is, the driving inclined surface O of the driving member 7033 is distributed away from the bearing groove K, and the driving inclined surface O of the driving member 7033 is in contact with the connecting rod 705 in the clamping assembly 700. Therefore, the rotation of the end of the driving member 7033 facing away from the transition member 7032 away from the bearing groove K enables the driving inclined surface O of the driving member 7033 to drive the connecting rod 705 to move away from the bearing groove K. Also, since the connecting rod 705 is used to connect two adjacent clamping parts 701 in the clamping assembly 700, the movement of the connecting rod 705 away from the bearing groove K can drive the clamping part 701 to move away from the bearing groove K. For this reason, the driving part 703 in the clamping assembly 700 can drive the clamping part 701 to move away from the bearing groove K in a direction parallel to the extension direction of the communication groove M.

[0084] Optionally, refer to Figure 8 , Figure 8 Figure 8 is a schematic diagram of another bearing groove provided by an embodiment of the present application for bearing a folding housing to be assembled. The assembling device 000 may further include: two sets of pressing components 800 arranged oppositely. Each set of pressing components 800 in the assembling device 000 may include at least one pressing component 800, and each pressing component 800 in the assembling device 000 may be connected to one side of the support base 100 provided with the bearing groove K. Wherein, after the folding housing 001 to be assembled is borne in the bearing groove K of the support base 100, the two sets of pressing components 800 in the assembling device 000 may be respectively distributed at two opposite ends of the hinge 012 in the folding housing 001 to be assembled, and each pressing component 800 in the assembling device 000 may be used to apply a pressing force to the side of the connection part between the housing 011 and the hinge 012 in the folding housing 001 to be assembled that faces away from the support base 100.

[0085] In this way, the folding housing 001 to be assembled located in the bearing groove K of the support base 100 can be pressed in the bearing groove K by each pressing component 800 in the assembling device 000. Since each pressing component 800 in the assembling device 000 presses the connection part between the housing 011 and the hinge 012 in the folding housing 001 to be assembled. Therefore, during the assembly process of the housing 011 and the hinge 012 in the folding housing 001 to be assembled, each pressing component 800 in the assembling device 000 can further restrict the movement of the connection part between the housing 011 and the hinge 012, so that the connection between the assembled housing and the hinge will not deviate.

[0086] In the present application, refer to Figure 9 , Figure 9It is a partial enlarged view of another assembly device provided by an embodiment of the present application. Each pressing assembly 800 in the assembly device 000 may include: a rotating shaft 801, a second elastic part 802, and a pressing part 803. The first end 8011 (not shown in the figure) of the rotating shaft 801 in the pressing assembly 800 may be fixedly connected to the support seat 100, and the rotating shaft 801 in the pressing assembly 800 may be at a position close to the bearing groove K of the support seat 100. Both the second elastic part 802 and the pressing part 803 in the pressing assembly 800 may be sleeved on the rotating shaft 801, and the pressing part 803 can rotate relative to the support seat 100 around the rotating shaft 801. The pressing part 803 in the pressing assembly 800 may be closer to the support seat 100 than the second elastic part 802. One end of the second elastic part 802 in the pressing assembly 800 may abut against the second end 8012 of the rotating shaft 801, and the other end abuts against the pressing part 803. Here, the orthographic projection of the second elastic part 802 on the support seat 100 may be located within the orthographic projection of the second end 8012 of the rotating shaft 801 on the support seat 100, so that the end of the second elastic part 802 sleeved on the rotating shaft 801 away from the pressing part 803 can abut against the second end 8012 of the rotating shaft 801.

[0087] Optionally, the pressing part 803 in the pressing assembly 800 can move axially along the rotating shaft 801 on the rotating shaft 801, and the pressing part 803 in the pressing assembly 800 can also rotate around the rotating shaft 801. Among them, after the pressing part 803 in the pressing assembly 800 rotates around the rotating shaft, a part of the pressing part 803 can extend into the bearing groove K of the support seat 100, or the pressing part 803 can be completely moved out of the bearing groove K of the support seat 100.

[0088] It should be noted that the pressing part 803 in the pressing assembly 800 may include: a moving part 8031 and a pressing part 8032. The moving part 8031 in the pressing part 803 may be sleeved on the rotating shaft 801. The pressing part 8032 in the pressing part 803 can extend into the bearing groove K of the support seat 100 or move out of the bearing groove K of the support seat 100 through the moving part 8031 moving axially along the rotating shaft 801 and rotating around the rotating shaft 801 on the rotating shaft 801.

[0089] When the pressing member 8032 in the pressing part 803 is located outside the bearing groove K of the support base 100, the foldable housing 001 to be assembled can be placed into the bearing groove K of the support base 100. After the bearing groove K bears the foldable housing 001 to be assembled, the pressing member 8032 in the pressing part 803 can extend into the bearing groove K to press the connecting part between the housing 011 and the hinge 012 in the foldable housing 001 to be assembled, so that the foldable housing 001 to be assembled can be assembled by the assembling device 000. Then, after the foldable housing 001 to be assembled is assembled, the pressing member 8032 in the pressing part 803 can be moved out of the bearing groove K so that the assembled foldable housing can be taken out of the bearing groove K.

[0090] Optionally, please refer to Figure 9 and Figure 10 , Figure 10 is a partial enlarged view of another assembling device provided by an embodiment of the present application. The support base 100 in the assembling device 000 may further have a connecting groove N1 communicating with the bearing groove K and a limiting groove N2 communicating with the connecting groove N1. The depth of the connecting groove N1 in the support base 100 may be greater than the depth of the limiting groove N2. The first end 8011 of the rotating shaft 801 in the pressing assembly 800 may be fixedly connected to the support base 100 in the connecting groove N1 of the support base 100. The shape of the limiting groove N2 of the support base 100 may match the shape of the pressing part 803 in the pressing assembly 800, and after the pressing part 803 in the pressing assembly 800 rotates around the rotating shaft 801 and enters the limiting groove N2 of the support base 100, the second elastic part 802 in the pressing assembly 800 may be in a compressed state.

[0091] It should be noted that the shape of the limiting groove N2 of the support base 100 may match the shape of the pressing member 8032 in the pressing part 803 so that the pressing member 8032 can be located in the limiting groove N2 of the support base 100. In addition, the moving member 8031 in the pressing part 803 is always located in the communicating groove N1. The axial movement and rotation of the moving member 8031 in the pressing part 803 around the rotating shaft 801 can drive the pressing member 8032 to extend into the bearing groove K or move into the limiting groove N2.

[0092] When the pressing member 8032 in the pressing part 803 needs to extend into the bearing groove K to press the foldable housing 001 to be assembled, the moving member 8031 in the pressing part 803 can rotate around the rotating shaft 801 to drive the pressing member 8032 located in the limiting groove N2 to rotate. Moreover, since the second elastic part 802 in the pressing assembly 800 is in a compressed state when the pressing part 803 in the pressing assembly 800 is located in the limiting groove N2, and the depth of the connecting groove N1 in the support base 100 is greater than the depth of the limiting groove N2, the second elastic part 802 in the compressed state can drive the moving member 8031 in the pressing part 803 to move along the axial direction of the rotating shaft 801 towards the support base 100. Therefore, the rotation of the moving member 8031 in the pressing part 803 around the rotating shaft 801 and the movement along the axial direction of the rotating shaft 801 towards the support base 100 can drive the pressing member 8032 to extend into the bearing groove K to press the foldable housing 001 to be assembled.

[0093] Then, after the foldable housing 001 to be assembled is assembled, the moving member 8031 in the pressing part 803 can move away from the support base 100 along the axial direction of the rotating shaft 801 and rotate around the rotating shaft 801 to drive the pressing member 8032 in the pressing part 803 to move into the limiting groove N2. Therefore, the assembled foldable housing can be taken out of the bearing groove K.

[0094] In this way, under the combined action of the clamping assembly 700 and the pressing assembly 800 in the assembling device 000, the foldable housing 001 to be assembled can be completely restricted in the bearing groove K, avoiding the problem of low reliability of the assembled foldable housing caused by the movement of the foldable housing 001 to be assembled during the assembly process.

[0095] In this application, please refer to Figure 11 , Figure 11 is an exploded view of another assembling device provided by an embodiment of this application. The support base 100 in the assembling device 000 may further include: a plurality of first positioning pins 101 located in the bearing groove K. The foldable housing 001 to be assembled may further include: a plurality of first positioning holes (not shown in the figure) corresponding to the plurality of first positioning pins 101 in the support base 100 one by one. When the foldable housing 001 to be assembled is placed into the bearing groove K of the support base 100, the plurality of first positioning pins 101 in the support base 100 can be aligned with the plurality of first positioning holes in the foldable housing 001 to be assembled first, and then the foldable housing 001 to be assembled can be placed into the bearing groove K of the support base 100 through the cooperation of the plurality of first positioning pins 101 and the plurality of first positioning holes. Finally, under the action of the clamping assembly 700 and the pressing assembly 800, the foldable housing 001 to be assembled is restricted in the bearing groove K of the support base 100.

[0096] In this application, if Figure 11 As shown, the support base 100 in the assembly device 000 may also include: a plurality of second positioning pins 102, and the cover plate 200 may include: a plurality of second positioning holes (not shown in the figure) corresponding to the plurality of second positioning pins 102. The plurality of second positioning pins 102 in the support base 100 may be located on the side of the support base 100 facing the cover plate 200, and the plurality of second positioning holes corresponding thereto may be located on the side of the cover plate 200 facing the support base 100. When the support base 100 and the cover plate 200 are connected together, the plurality of second positioning pins 102 in the support base 100 may be aligned with the plurality of second positioning holes in the cover plate 200 first, and then the cover plate 200 may be placed on the support base 100 through the cooperation of the plurality of second positioning pins 102 and the plurality of second positioning holes. Then, the cover plate 200 and the support base 300 are connected together through the magnetic connection of the first magnetic attraction portion 300 and the second magnetic attraction portion 400 in the assembly device 000.

[0097] In this application, if Figure 11 and Figure 12 As shown, Figure 12 000 may further include: a plurality of foot pads 900. The distribution of the plurality of foot pads 900 in the assembly device 000 may be in the following three situations:

[0098] When the multiple connection holes S in the folding shell 001 to be assembled are distributed on the side of the folding shell 001 to be assembled away from the bearing groove K of the support base 100, the multiple foot pads 900 in the assembly device 000 can be distributed on the side of the cover plate 200 away from the support base 100.

[0099] When the multiple connection holes S in the folding shell 001 to be assembled are distributed on the side of the folding shell 001 to be assembled facing the bearing groove K of the support base 100, the multiple foot pads 900 in the assembly device 000 can be distributed on the side of the support base 100 away from the cover plate 200.

[0100] When a part of the multiple connecting holes S in the folding shell 001 to be assembled are distributed on the side of the folding shell 001 to be assembled away from the bearing slot K of the support seat 100, and another part of the connecting holes S are distributed on the side of the folding shell 001 to be assembled away from the bearing slot K of the support seat 100, a part of the multiple foot pads 900 in the assembly device 000 can be distributed on the side of the cover plate 200 away from the support seat 100, and another part of the foot pads 900 can be distributed on the side of the support seat 100 away from the cover plate 200.

[0101] It should be noted that the side of the multiple foot pads 900 distributed on the side of the cover plate 200 away from the support seat 100 away from the cover plate 200 can be in the same plane, and the side of the multiple foot pads 900 distributed on the side of the support seat 100 away from the cover plate 200 away from the support seat 100 can be in the same plane. In this way, during the process of assembling the folding shell 001 to be assembled by the assembly device 000, the multiple foot pads 900 in the assembly device 000 can keep the assembly device 000 in a stable state, so as to reduce the assembly error of the folding shell 001 to be assembled, so that the folding shell assembled by the assembly device 000 can have higher reliability.

[0102] In summary, an embodiment of the present application provides an assembly device, comprising: a support base and a cover plate. Since the bearing groove of the support base can be used to bear the folding shell to be assembled, during the assembly process of the folding shell to be assembled, the housing and hinge in the folding shell to be assembled are confined within the bearing groove of the support base. To this end, under the guidance of the multiple through holes in the assembly device, during the process of connecting the fasteners to the corresponding connecting holes, the housing and hinge in the folding shell to be assembled will not move, so that the connection between the assembled housing and the hinge will not deviate. In this way, the folding shell assembled by the assembly device can have higher reliability.

[0103] In the present application, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. The term "plurality" refers to two or more than two, unless otherwise clearly defined.

[0104] The above description is only an optional embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. An assembly device, characterized in that: include: Support base and cover plate; The support base has a bearing groove, and the bearing groove is used to bear the folding shell to be assembled, and the folding shell includes: two shells arranged side by side, and a hinge located between the two shells, and the folding shell has a plurality of connection holes for connecting the shells and the hinges; The cover plate is located on one side of the support base where the bearing groove is arranged, and the cover plate is detachably connected to the support base; Among them, the side of the support seat facing away from the cover plate has a plurality of first through holes, and / or the side of the cover plate facing away from the support seat has a plurality of second through holes; after the supporting groove supports the folding shell and the cover plate is connected to the support seat, at least one of the plurality of first through holes and the plurality of second through holes is connected to the plurality of connecting holes accordingly.

2. The assembly device according to claim 1, characterized in that: The assembly device further includes: a plurality of first magnetic attraction portions, and a plurality of second magnetic attraction portions corresponding one-to-one to the plurality of first magnetic attraction portions; The plurality of first magnetic attraction parts are all fixed on a side of the support seat where the bearing slot is provided; the plurality of second magnetic attraction parts are all movably connected to the cover plate; Among them, after the second magnetic attraction part moves relative to the cover plate so that the second magnetic attraction part and the corresponding first magnetic attraction part are aligned, the second magnetic attraction part and the corresponding first magnetic attraction part are magnetically connected; after the second magnetic attraction part moves relative to the cover plate so that the second magnetic attraction part and the corresponding first magnetic attraction part are misaligned, the second magnetic attraction part and the corresponding first magnetic attraction part are disconnected.

3. The assembly device according to claim 2, characterized in that: The cover plate has a plurality of hollow grooves corresponding to the plurality of second magnetic attraction portions one by one, and each of the second magnetic attraction portions is slidably connected to the cover plate in the corresponding hollow groove; Among them, the multiple hollow grooves also correspond one-to-one to the multiple first magnetic attraction parts, and the orthographic projection of each of the first magnetic attraction parts on the support base is located within the orthographic projection of the corresponding hollow groove on the support base.

4. The assembly device according to claim 3, characterized in that: The assembly device further includes: a first slide rail and a second slide rail fixed in the hollow groove and arranged opposite to each other; The second magnetic attraction portion includes: a sliding block located between the first sliding rail and the second sliding rail, and a second magnet fixedly connected to the sliding block, and the sliding block is slidably connected to the first sliding rail and the second sliding rail.

5. The assembly device according to claim 4, characterized in that: The first slide rail has an elastic limiting protrusion on one side facing the second slide rail, and the sliding block has a clamping hole matching the elastic limiting protrusion; Wherein, after at least a portion of the elastic limiting protrusion extends into the clamping hole, the second magnet is misaligned with the first magnetic attraction portion.

6. The assembly device according to any one of claims 1 to 5, characterized in that: The assembly device further comprises: two clamping assemblies arranged opposite to each other, the two clamping assemblies being connected to one side of the support seat where the bearing groove is arranged; After the bearing groove carries the folding shell, the two clamping assemblies are respectively distributed on one side of the two housings away from the hinge, and the clamping assemblies are used to apply a clamping force toward the hinge to the adjacent housings.

7. The assembly device according to claim 6, characterized in that: Each of the clamping assemblies comprises: at least two clamping parts arranged side by side, at least two first elastic parts corresponding to the at least two clamping parts one by one, and a driving part located between two adjacent clamping parts; the support seat also has at least two communicating grooves communicating with the bearing groove; The at least two clamping parts correspond to the at least two communicating grooves one by one, each of the clamping parts is slidably connected to the support seat in the corresponding communicating groove, and each of the clamping parts can extend into the bearing groove through the corresponding communicating groove; the side of the clamping part away from the bearing groove is connected to one end of the corresponding first elastic part, and the end of the first elastic part away from the clamping part can be limited by the support seat; the driving part is connected to two adjacent clamping parts at the same time; Wherein, the driving part is configured to: simultaneously drive two adjacent clamping parts to move away from the bearing groove along an extension direction parallel to the connecting groove, so that the corresponding first elastic part is in a compressed state.

8. The assembly device according to claim 7, characterized in that: Each of the clamping assemblies further comprises: a connecting rod for connecting two adjacent clamping parts; The driving part includes: a rotating member rotatably connected to the support seat, a transition member fixedly connected to a side of the rotating member facing away from the support seat, and a driving member fixedly connected to a side of the transition member facing away from the rotating member; the driving member is relatively distributed closer to the support seat than the transition member, and a side of the driving member facing away from the transition member has a driving inclined surface, the driving inclined surface is distributed toward the rotating member, and the driving inclined surface abuts against the connecting rod.

9. The assembly device according to any one of claims 1-5, 7-8, characterized in that: The assembly device further comprises: two groups of clamping assemblies arranged opposite to each other, each group of the clamping assemblies comprising at least one clamping assembly, each of the clamping assemblies being connected to a side of the support seat where the bearing groove is arranged; Among them, after the bearing groove carries the folding shell, the two groups of clamping components are respectively distributed at the two opposite ends of the hinge, and each of the clamping components is used to apply a clamping force to the side of the connection between the housing and the hinge that is away from the support base.

10. The assembly device according to claim 9, characterized in that: Each of the clamping assemblies comprises: a rotating shaft, a second elastic portion and a clamping portion; The first end of the rotating shaft is fixedly connected to the support seat, and the rotating shaft is distributed at a position close to the bearing groove; the second elastic part and the clamping part are both sleeved on the rotating shaft, and the clamping part is closer to the support seat than the second elastic part; one end of the second elastic part abuts against the second end of the rotating shaft, and the other end abuts against the clamping part; the clamping part can move on the rotating shaft along the axial direction of the rotating shaft, and the clamping part can also rotate around the rotating shaft; Wherein, after the pressing part rotates around the rotating shaft, a part of the pressing part can extend into the bearing groove or the pressing part can be completely moved out of the bearing groove.

11. The assembly device according to claim 10, characterized in that: The support seat further comprises a connecting groove connected to the bearing groove, and a limiting groove connected to the connecting groove, wherein the depth of the connecting groove is greater than the depth of the limiting groove; The first end of the rotating shaft is fixedly connected to the support seat in the connecting groove; the shape of the limiting groove matches the shape of the clamping portion, and after the clamping portion rotates around the rotating shaft into the limiting groove, the second elastic portion is in a compressed state.