CN213703187U

CN213703187U - Mounting jig

Info

Publication number: CN213703187U
Application number: CN202022805902.6U
Authority: CN
Inventors: 孙大兴; 肖展航
Original assignee: GAC Toyota Motor Co Ltd
Current assignee: GAC Toyota Motor Co Ltd
Priority date: 2020-11-26
Filing date: 2020-11-26
Publication date: 2021-07-16
Anticipated expiration: 2030-11-26

Abstract

The utility model discloses an installation tool, wherein, installation tool includes mount pad, three support column and three first connecting element, and is three the support column interval sets up on the mount pad, and three first groove, three of sliding has all been seted up on the support column first connecting element and three first groove one-to-one setting of sliding, first connecting element is including movably setting up corresponding first connecting element in the first inslot that slides, and sets up linking bridge on the first connecting element, it is three linking bridge is used for respectively being connected with treating the installed part. The utility model discloses can be through changing the position of first connecting piece at the first inslot that slides, adjust linking bridge's position to satisfy not unidimensional installation of treating the installed part, improve the commonality of installation tool, reach reduction in production cost's purpose.

Description

Mounting jig

Technical Field

The utility model relates to a car light production technical field especially relates to an installation tool.

Background

In the present day, in the automobile design development stage, in order to verify whether the design performance of the lamp is up to the target, the appearance effect of the lamp when it is turned on or off is usually confirmed, and in order to accurately simulate the height, angle, etc. of the lamp mounted on the automobile, it is necessary to mount and fix the lamp on a special jig so that the observer can observe the lamp at an angle simulating the real automobile. Simultaneously, car light manufacture factory also can need to install the car light on special tool in the needs of the show to enterprise's self product at the back is accomplished in car light design development to show car light product to other people better.

However, the sizes of the lamps are different, and the existing lamp fixture products are tailored for a certain lamp and are not universal. As shown in fig. 1, the first support frame 02, the second support frame 03 and the third support frame 04 are fixed on the fixture base 01 at intervals by screws 05, and the vehicle lamp can be mounted on the first support frame 02, the second support frame 03 and the third support frame 04 by three sets of bolts and nuts. Different tool products need be customized to the car light that is the size difference promptly to lead to manufacturing cost high.

Accordingly, there is a need for a mounting fixture that overcomes or alleviates at least the above-mentioned deficiencies of the prior art.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at providing an installation tool, the tool product that aims at solving current car light does not have the commonality and leads to the technical problem that manufacturing cost is high.

In order to realize the above-mentioned purpose, the utility model provides an installation tool, wherein, installation tool includes mount pad, three support column and three first connecting assembly, and is three the support column interval sets up on the mount pad, and three first groove, three of sliding has all been seted up on the support column first connecting assembly and three first groove one-to-one setting of sliding, first connecting assembly is including movably setting up corresponding first connecting piece in the first inslot that slides, and set up and be in linking bridge on the first connecting piece, it is three linking bridge is used for respectively and treats the installed part and be connected.

Optionally, the first connecting piece includes a first bolt and a first nut, the first nut is accommodated in the first sliding groove, and the first bolt passes through the connecting bracket and extends into the first sliding groove to be connected with the first nut.

Optionally, the first sliding groove is a T-shaped groove, and the first nut is a T-shaped nut matched with the T-shaped groove.

Optionally, the connecting bracket includes first angle sign indicating number, second angle sign indicating number and second connecting piece, first angle sign indicating number with first connecting piece is connected, the one end that first connecting piece was kept away from to first angle sign indicating number passes through the second connecting piece with the second angle sign indicating number is connected, the one end that first angle sign indicating number was kept away from to the second angle sign indicating number be used for with treat that the installed part is connected.

Optionally, first corner sign indicating number includes first corner board and certainly the second scute of the one end bending extension of first scute, the second corner sign indicating number includes the third scute and certainly the fourth scute of the one end bending extension of third scute, first scute back-leaves the extending direction's of second scute one side is passed through first connecting piece with the support column laminating is connected, the third scute deviates from the extending direction's of fourth scute one side is passed through the second connecting piece with the second scute deviates from the extending direction's of first scute one side laminating is connected, just the fourth scute deviates from the extending direction's of third scute one side be used for with treat that the installed part laminating is connected.

Optionally, be formed with three second groove that slides on the mount pad, the installation tool still includes three second coupling assembling, and is three second coupling assembling with three the second groove one-to-one setting that slides, and every the movably setting of second coupling assembling is in the correspondence the second inslot that slides, three the support column is with three the second coupling assembling one-to-one is connected.

Optionally, the second coupling assembling includes two third connecting pieces and two third angle sign indicating numbers, two the third angle sign indicating number is located the both sides of support column, two the third connecting piece and two the third angle sign indicating number one-to-one is connected, and two the third connecting piece is movably the setting respectively and is in the second inslot that slides.

Optionally, the mount pad includes first erection column, second erection column, third erection column and two third coupling assembling, first erection column the second erection column with all form on the top surface of third erection column the second groove that slides, first erection column with second erection column interval sets up, the third erection column is through one of them third coupling assembling with first erection column is connected, the third erection column is through another third coupling assembling with the second erection column is connected.

Optionally, a third sliding groove is formed in each of the side surfaces of the second mounting column and the third mounting column, one of the third connecting assemblies is movably disposed in the third sliding groove of the second mounting column and connected to the third mounting column, and the other of the third connecting assemblies is movably disposed in the third sliding groove of the third mounting column and connected to the first mounting column.

Optionally, the first erection column with the second erection column sets up in parallel to each other, on the second erection column the third groove that slides sets up the second erection column towards one side of first erection column, the one end of third erection column is passed through third coupling assembling with the second erection column is connected, just the third erection column with first erection column mutually perpendicular sets up, on the third erection column the third groove that slides sets up is being close to one side of first erection column, just the one end of first erection column is passed through third coupling assembling with the third erection column is connected.

The technical scheme of the utility model, because the installation tool that provides includes the mount pad, three support column and three first connecting component, first groove of sliding has all been seted up on the three support column, three first connecting component all includes first connecting piece and sets up the linking bridge on first connecting piece, and the first connecting piece and the three first groove one-to-one that slides of three first connecting component set up, then corresponding first groove of sliding all can be followed to three first connecting piece and removed, so that the position of corresponding linking bridge changes, thereby can be through changing the position of first connecting piece at the first inslot that slides, adjust the position of linking bridge, treat the installation of installed part with satisfying different sizes, improve the commonality of installation tool, reach reduction in production cost's purpose.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a jig product in the background art;

fig. 2 is a schematic structural diagram of a viewing angle of the installation jig according to the embodiment of the present invention;

fig. 3 is a schematic structural diagram of another view angle of the installation jig according to the embodiment of the present invention;

fig. 4 is a schematic structural diagram of a support column and a first connecting assembly according to an embodiment of the present invention;

fig. 5 is a schematic structural view of a connecting bracket, a fourth connecting member and a member to be mounted according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of the connection bracket, the fourth connection member, the gasket and the to-be-installed member according to the embodiment of the present invention.

The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Description of reference numerals in fig. 1

Reference numerals	Name (R)	Reference numerals	Name (R)
				01	Jig base	02	First support frame
03	Second support frame	04	Third support frame
				05	Screw nail

The reference numerals in fig. 2 to 6 illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)
				1	Mounting seat	11	First mounting post
12	Second mounting post	13	Third mounting post
				14	Second sliding groove	15	Third sliding groove
2	Support column	21	First support column
				22	Second support pillar	23	Third support column
24	First sliding groove	3	First connecting component
				31	First connecting piece	311	First bolt
312	First nut	32	Connecting support
				321	First corner code	322	Second corner connector
323	Second connecting piece	324	First gusset plate
				325	Second corner panel	326	Third set square
327	Fourth corner board	328	Second bolt
				329	Second nut	33	Fourth connecting piece
331	Fourth bolt	332	Fourth nut
				34	Gasket	4	Second connecting component
41	Third angle code	42	Third connecting piece
				5	Third connecting assembly	6	To-be-installed part

Detailed Description

It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiments of the present invention are only used to explain the relative station relationship, motion situation, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit ly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

Referring to fig. 2 and fig. 3, the utility model provides an installation jig, installation jig includes mount pad 1, three support column 2 and three first connecting

component

3, 2 intervals of three support column set up on mount pad 1, and all seted up first sliding groove 24 on the three support column 2, three first connecting component 3 sets up with three first sliding groove 24 one-to-one, first connecting component 3 includes movably the first connecting piece 31 that sets up in the first sliding groove 24 that corresponds, and set up the linking bridge 32 on first connecting piece 31, three linking bridge 32 is used for respectively with treat that installed part 6 is connected. It should be particularly noted that, this treat installed part 6 can be the car light, also can be other suitable products, and this installation tool is particularly suitable for the installation tool as the car light, but is not limited to the installation tool as the car light, if there are other products to have applied the utility model provides an installation tool also the reason should fall into the utility model discloses a protection scope.

The technical scheme of the utility model, because the installation tool that provides includes mount pad 1, three support column 2 and three first connecting component 3, first groove 24 that slides has all been seted up on three support column 2, three first connecting component 3 all includes first connecting piece 31 and sets up the linking bridge 32 on first connecting piece 31, and the first connecting piece 31 and the three first 24 one-to-one that slide of groove set up of first connecting component 3, then three first connecting piece 31 all can be followed the first groove 24 that slides that corresponds and removed, so that corresponding linking bridge 32's position changes, thereby can be through changing the position of first connecting piece 31 in first groove 24 that slides, adjust linking bridge 32's position, in order to satisfy the not unidimensional installation of treating installed part 6, improve the commonality of installation tool, reach reduction in production cost's purpose.

In an embodiment, referring to fig. 3 and 4, the first connecting member 31 includes a first bolt 311 and a first nut 312, the first nut 312 is received in the first sliding slot 24, and the first bolt 311 passes through the connecting bracket 32 and extends into the first sliding slot 24 to connect with the first nut 312. That is, the first connecting member 31 is detachably connected with the first nut 312 through the first bolt 311, and the position of the first connecting member 31 on the first sliding groove 24 is adjusted, when the position of the connecting bracket 32 needs to be adjusted, the first bolt 311 and the first nut 312 can be driven to move to the corresponding position along the first sliding groove 24 by loosening the connection between the first bolt 311 and the first nut 312, and after the corresponding position is reached, the connection between the first bolt 311 and the first nut 312 is tightened, so that the fixing can be performed. Meanwhile, the connecting bracket 32 can be provided with a connecting hole, the first bolt 311 penetrates through the connecting hole and extends into the first sliding groove 24 to be connected with the first nut 312, and the connecting bracket 32 can rotate around the first bolt 311 to adapt to the installation angles of the to-be-installed parts 6 with different sizes.

Specifically, the first sliding groove 24 is a T-shaped groove, and the first nut 312 is a T-shaped nut matched with the T-shaped groove. The T-shaped groove and the T-shaped nut are prior art and are not described in detail herein.

In addition, the three first sliding slots 24 are all arranged to extend along the height direction of the corresponding support column 2, that is, the three connecting brackets 32 can be moved in the first sliding slots 24 through the corresponding first connecting members 31, respectively, to adjust the corresponding height position.

Further, referring to fig. 1, 2 and 5, the connecting bracket 32 includes a first corner connector 321, a second corner connector 322 and a second connector 323, the first corner connector 321 is connected with the first connector 31, one end of the first corner connector 321 away from the first connector 31 is connected with the second corner connector 322 through the second connector 323, and one end of the second corner connector 322 away from the first corner connector 321 is used for being connected with the component to be mounted 6. Furthermore, the first corner connector 321 includes a first corner plate 324 and a second corner plate 325 bent and extended from one end of the first corner plate 324, the second corner connector 322 includes a third corner plate 326 and a fourth corner plate 327 bent and extended from one end of the third corner plate 326, one side of the first corner plate 324 departing from the extending direction of the second corner plate 325 is attached and connected to the supporting column 2 through the first connecting member 31, one side of the third corner plate 326 departing from the extending direction of the fourth corner plate 327 is attached and connected to one side of the second corner plate 325 departing from the extending direction of the first corner plate 324 through the second connecting member 323, and one side of the fourth corner plate 327 departing from the extending direction of the third corner plate 326 is used for being attached and connected to the to-be-installed member 6. That is, the first corner plate 324 of the first corner brace 321 is in plane fit connection with the supporting column 2, the second corner plate 325 of the first corner brace 321 is in plane fit connection with the third corner plate 326 of the second corner brace 322, and the fourth corner plate 327 of the second corner brace 322 is in plane fit connection with the to-be-installed member 6, so that the connection stability can be ensured.

Meanwhile, the second connector 323 comprises a second bolt 328 and a second nut 329, the second bolt 328 passes through the second corner plate 325 and the third corner plate 326 respectively, and is connected with the second nut 329, namely, the first corner connector 321 can rotate around the first bolt 311, and the second corner connector 322 can rotate around the second bolt 328, so that the installation angles of the pieces to be installed 6 with different sizes can be adapted through the rotation of the first corner connector 321 and the second corner connector 322.

More specifically, referring to fig. 2, 3, 5 and 6, the mounting jig further includes three fourth connecting members 33 and two spacers 34, the fourth connecting members 33 are disposed on a fourth corner plate 327 of the second corner brace 322 and connected to the member to be mounted 6, the fourth connecting members 33 include a fourth bolt 331 and a fourth nut 332, the fourth bolt 331 passes through the fourth corner plate 327 and the member to be mounted 6 and is connected to the fourth nut 332, and at the same time, the two spacers 34 are disposed in one-to-one correspondence with the two fourth bolts 331, and the member to be mounted 6 can be located between the spacers 34 and the fourth corner plate 327, so that the spacers 34 can increase the contact area and prevent looseness.

In an embodiment, referring to fig. 2 and fig. 3 again, three second sliding grooves 14 are formed on the mounting base 1, the mounting fixture further includes three second connecting assemblies 4, the three second connecting assemblies 4 are disposed in one-to-one correspondence with the three second sliding grooves 14, each second connecting assembly 4 is movably disposed in the corresponding second sliding groove 14, and the three support columns 2 are connected to the three second connecting assemblies 4 in one-to-one correspondence. Namely, the three second sliding grooves 14 and the three second connecting assemblies 4 are arranged on the mounting base 1, so that the three support columns 2 can be movably arranged on the mounting base 1, the positions of the three support columns 2 can be adjusted in the plane of the mounting base 1, and the positions of the three connecting brackets 32 can be changed, so that the universality of the mounting jig is further improved.

Specifically, the second connecting assembly 4 includes two third connecting members 42 and two third corner connectors 41, the two third corner connectors 41 are respectively disposed on two sides of the supporting column 2, the two third connecting members 42 are connected with the two third corner connectors 41 in a one-to-one correspondence manner, and the two third connecting members 42 are respectively movably disposed in the second sliding groove 14. The utility model discloses in, the structure of third connecting piece 42 is unanimous with the structure of first connecting piece 31, and the structure of third corner connector 41 is unanimous with the structure of first corner connector 321 and second corner connector 322, does not do here relevant redundance.

In an embodiment, referring to fig. 2 and 3, the mounting base 1 includes a first mounting column 11, a second mounting column 12, a third mounting column 13 and two third connecting assemblies 5, a second sliding groove 14 is formed on top surfaces of the first mounting column 11, the second mounting column 12 and the third mounting column 13, the first mounting column 11 and the second mounting column 12 are arranged at intervals, the third mounting column 13 is connected with the first mounting column 11 through one of the third connecting assemblies 5, and the third mounting column 13 is connected with the second mounting column 12 through the other third connecting assembly 5. That is, the mounting base 1 can be formed by splicing the first mounting column 11, the second mounting column 12 and the third mounting column 13, and compared with the mounting base 1 with an integrated structure, the material cost can be saved. It should be noted that, in this embodiment, the first mounting column 11, the second mounting column 12 and the third mounting column 13 are disposed side by side, so that one side forms a top surface, and a second sliding slot 14 is formed on the top surface, and the three supporting columns 2 are disposed upright, and a first sliding slot 24 is formed on one side surface.

Specifically, third sliding grooves 15 are formed on the side surfaces of the second mounting column 12 and the third mounting column 13, one of the third connecting assemblies 5 is movably disposed in the third sliding groove 15 of the second mounting column and connected to the third mounting column 13, and the other third connecting assembly 5 is movably disposed in the third sliding groove 15 of the third mounting column 13 and connected to the first mounting column 11. Namely, through the arrangement of the third sliding groove 15 and the third connecting component 5, the relative position relationship between the first mounting column 11 and the third mounting column 13 and the relative position relationship between the second mounting column 12 and the third mounting column 13 can be changed, so as to further improve the universality of the mounting jig.

More specifically, the first mounting column 11 and the second mounting column 12 are arranged in parallel with each other, the third sliding groove 15 on the second mounting column 12 is arranged on one side of the second mounting column 12 facing the first mounting column 11, one end of the third mounting column 13 is connected with the second mounting column 12 through the third connecting component 5, the third mounting column 13 and the first mounting column 11 are arranged in perpendicular to each other, the third sliding groove 15 on the third mounting column 13 is arranged on one side close to the first mounting column 11, and one end of the first mounting column 11 is connected with the third mounting column 13 through the third connecting component 5. So that the layout rationality of the first mounting post 11, the second mounting post 12 and the third mounting post 13 can be improved. Meanwhile, the third connecting component 5 and the second connecting component 4 have the same structure, and are not described in detail herein.

Furthermore, the three support columns 2 can be divided into a first support column 21, a second support column 22 and a third support column 23, the first support column 21 is disposed corresponding to the second sliding slot 14 on the first mounting column 11, the second support column 22 is disposed corresponding to the second sliding slot 14 on the second mounting column 12, the third support column 23 is disposed corresponding to the second sliding slot 14 on the third mounting column 13, the first support column 21, the second support column 22, the third support column 23, the first mounting column 11, the second mounting column 12 and the third mounting column 13 can be aluminum alloy sections with T-shaped slots formed on four sides, the first mounting column 11, the second mounting column 12 and the third mounting column 13 are placed on a certain placing plane, the first mounting column 11 and the second mounting column 12 are disposed in an X-direction extension of the placing plane, the third mounting column 13 is disposed in a Y-direction extension of the placing plane, and the T-shaped groove on the second mounting post 12 facing the first mounting post 11 is the third sliding groove 15 of the second mounting post 12, the T-shaped groove on the third mounting post 13 facing the first mounting post 11 is the third sliding groove 15 of the third mounting post 13, i.e. the first mounting post 11 can move on the third mounting post 13 along the Y-direction of the laying plane, the third mounting post 13 can move on the second mounting post 12 along the X-direction of the laying plane, and the second sliding grooves 14 of the first mounting post 11, the second mounting post 12 and the third mounting post 13 are all formed on the side away from the laying plane, i.e. the first supporting post 21 can move on the first mounting post 11 along the X-direction of the laying plane, the second supporting post 22 can move on the second mounting post 12 along the X-direction of the laying plane, the third supporting post 23 can move on the third mounting post 13 along the Y-direction of the laying plane, and at the same time, the three supporting posts 2 are vertically arranged, that is, the three connecting brackets 32 can move along the Z direction of the placing plane on the corresponding supporting columns 2, so that the positions of the connecting brackets 32 can be adjusted in different directions to adapt to various sizes of the to-be-mounted members 6.

The above is only the preferred embodiment of the present invention, and not the scope of the present invention, all the equivalent structures or equivalent flow changes made by the contents of the specification and the drawings or the direct or indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. The utility model provides an installation tool which characterized in that includes:

a mounting seat;

the three support columns are arranged on the mounting seat at intervals, and first sliding grooves are formed in the three support columns;

the first connecting assembly is in one-to-one correspondence with the first sliding grooves, the first connecting assembly comprises first connecting pieces movably arranged in the corresponding first sliding grooves and connecting supports arranged on the first connecting pieces, and the connecting supports are used for being connected with the to-be-installed pieces respectively.

2. The mounting jig according to claim 1, wherein the first connecting member includes a first bolt and a first nut, the first nut is accommodated in the first sliding groove, and the first bolt passes through the connecting bracket and extends into the first sliding groove to be connected with the first nut.

3. The mounting fixture of claim 2, wherein the first sliding groove is a T-shaped groove, and the first nut is a T-shaped nut engaged with the T-shaped groove.

4. The mounting jig according to claim 1, wherein the connecting bracket comprises a first corner brace, a second corner brace and a second connecting piece, the first corner brace is connected with the first connecting piece, one end of the first corner brace, which is far away from the first connecting piece, is connected with the second corner brace through the second connecting piece, and one end of the second corner brace, which is far away from the first corner brace, is used for being connected with the piece to be mounted.

5. The installation jig of claim 4, wherein the first corner brace comprises a first corner plate and a second corner plate bending and extending from one end of the first corner plate, the second corner brace comprises a third corner plate and a fourth corner plate bending and extending from one end of the third corner plate, one side, away from the extending direction of the second corner plate, of the first corner plate is connected with the supporting column in an attaching mode through the first connecting piece, one side, away from the extending direction of the fourth corner plate, of the third corner plate is connected with one side, away from the extending direction of the first corner plate, of the second corner plate in an attaching mode through the second connecting piece, and one side, away from the extending direction of the third corner plate, of the fourth corner plate is used for being connected with the part to be installed in an attaching mode.

6. The mounting jig of any one of claims 1 to 5, wherein three second sliding grooves are formed on the mounting base, the mounting jig further comprises three second connecting assemblies, the three second connecting assemblies are arranged in one-to-one correspondence with the three second sliding grooves, each second connecting assembly is movably arranged in the corresponding second sliding groove, and the three support columns are connected with the three second connecting assemblies in one-to-one correspondence.

7. The mounting fixture according to claim 6, wherein the second connecting assembly includes two third connecting members and two third corner connectors, the two third corner connectors are disposed on two sides of the supporting column, the two third connecting members are connected with the two third corner connectors in a one-to-one correspondence, and the two third connecting members are movably disposed in the second sliding groove respectively.

8. The mounting jig of claim 6, wherein the mounting base comprises a first mounting column, a second mounting column, a third mounting column and two third connecting assemblies, the top surfaces of the first mounting column, the second mounting column and the third mounting column are respectively provided with the second sliding groove, the first mounting column and the second mounting column are arranged at intervals, the third mounting column is connected with the first mounting column through one of the third connecting assemblies, and the third mounting column is connected with the second mounting column through the other third connecting assembly.

9. The mounting fixture of claim 8, wherein the second mounting post and the third mounting post each have a third sliding groove formed on a side surface thereof, one of the third connecting members is movably disposed in the third sliding groove of the second mounting post and connected to the third mounting post, and the other of the third connecting members is movably disposed in the third sliding groove of the third mounting post and connected to the first mounting post.

10. The mounting jig of claim 9, wherein the first mounting post and the second mounting post are disposed in parallel, the third sliding groove on the second mounting post is disposed on a side of the second mounting post facing the first mounting post, one end of the third mounting post is connected to the second mounting post through the third connecting assembly, the third mounting post and the first mounting post are disposed in perpendicular to each other, the third sliding groove on the third mounting post is disposed on a side close to the first mounting post, and one end of the first mounting post is connected to the third mounting post through the third connecting assembly.