Grinding equipment

Abstract

The utility model discloses a grinding device which comprises a support body, a grinding part and a grinding part. The sliding piece comprises a first sliding part and a second sliding part, the first sliding part is movably arranged on the support body in the first direction, and the second sliding part is movably arranged on the support body in the second direction; the polishing part abuts against the polishing part, and the two opposite ends of the polishing part are connected with the first sliding part and the second sliding part correspondingly; when the first sliding part moves in the first direction, the first sliding part is used for driving the second sliding part to move in the second direction, so that the grinding piece moves relative to the grinding part and keeps abutting against the grinding part. The first sliding part of the sliding part drives the second sliding part to move in the second direction in the first direction, then the grinding part synchronously moves along with movement of the first sliding part, the grinding part can always abut against the grinding part, accurate replacement of the position of the grinding part is achieved, and the replacement mode is simple and convenient.

Description

Technical Field

[0001] This utility model relates to the field of planar polishing technology, and in particular to a grinding device. Background Technology

[0002] For polished products with specific arc angles, the traditional method is to use concentric polishing wheels for surface polishing. Under specific product structures and material quality requirements, a flat polishing process is needed. However, the flat polishing process requires frequent sandpaper changes, and changing sandpaper is somewhat difficult. Utility Model Content

[0003] The purpose of this invention is to provide a grinding device to solve the problems in the prior art, so as to facilitate the replacement of sandpaper in the flat polishing process.

[0004] This utility model provides a grinding device, including:

[0005] A support body having a grinding section;

[0006] A sliding member, comprising a first sliding portion and a second sliding portion, wherein the first sliding portion is movably disposed on the bracket body along a first direction, and the second sliding portion is movably disposed on the bracket body along a second direction;

[0007] A grinding component, wherein the grinding part abuts against the grinding component, and the opposite ends of the grinding component are respectively connected to the first sliding part and the second sliding part;

[0008] in:

[0009] When the first sliding part moves along the first direction, the first sliding part drives the second sliding part to move along the second direction, so that the grinding member moves relative to the grinding part and remains in contact with the grinding part.

[0010] In the grinding device described above, preferably, the support body is provided with an adjusting member, the adjusting member is provided with a locking engagement part, and the first sliding part is provided with a locking part. The locking part and the locking engagement part can form a locking engagement. The adjusting member can move along a preset path. When the adjusting member is located at the beginning end of the preset path, the locking part and the engagement part maintain a locking engagement to lock the position of the grinding part. When the adjusting member moves along the preset path to the end of the preset path, the first sliding part can move along the first direction to move the grinding part relative to the grinding part.

[0011] In the grinding device described above, preferably, the locking part includes a plurality of locking grooves, the plurality of locking grooves being spaced apart along the first direction, and the locking engagement part is a locking block, the locking block being used to extend into any one of the locking grooves to lock the position of the grinding part.

[0012] In the grinding device described above, preferably, the adjusting member includes an adjusting rod, the locking block is disposed on the adjusting rod, and an elastic member is sleeved on the adjusting rod. One end of the elastic member is connected to the adjusting rod, and the other end of the elastic member is connected to the support body, so as to apply an elastic force to the adjusting rod, enabling the adjusting rod to elastically reciprocate along the preset path.

[0013] In the grinding equipment described above, preferably, the second sliding part is provided with a positioning part, and the support body is provided with a positioning mating part, wherein the positioning part and the positioning mating part form a positioning mating.

[0014] In the grinding device described above, preferably, the positioning part includes a plurality of positioning holes, the plurality of positioning holes are spaced apart along the second direction, the positioning mating part includes at least one positioning post, and the second sliding part moves along the second direction until the positioning post is inserted into one of the positioning holes, at which point the position of the sandpaper is fixed.

[0015] In the grinding device described above, preferably, the support body includes a first surface, a second surface, and a third surface, the first surface, the second surface, and the third surface are sequentially arranged, the first surface extends along a first direction, the third surface extends along a second direction, the angle between the first direction and the second direction is an acute angle, and the second surface is an arc-shaped surface.

[0016] In the aforementioned polishing device, preferably, the polishing device further includes an adhesive component, the polishing part abutting against the adhesive component, the opposite ends of the adhesive component being connected to the first sliding part and the second sliding part respectively, and the polishing component being adhered to the side of the adhesive component away from the polishing part.

[0017] In the grinding device described above, preferably, the grinding device further includes a connector, the grinding part abuts against the connector, the opposite ends of the connector are respectively connected to the first sliding part and the second sliding part, and the adhesive is attached to the side of the connector away from the grinding part.

[0018] In the grinding device described above, preferably, the grinding device further includes a guide member, which includes a first guide portion and a second guide portion. The first guide portion is located between the first sliding portion and the support body, and the first guide portion is used to guide the first sliding portion to move along the first direction. The second guide portion is located between the second sliding portion and the support body, and the second guide portion is used to guide the second sliding portion to move along the second direction.

[0019] Compared with the prior art, this utility model utilizes the movement of the first sliding part of the sliding member along the first direction to drive the second sliding part to move along the second direction. As a result, the grinding part moves synchronously with the movement of the first sliding part, so that the grinding part can always keep in contact with the grinding part. This enables accurate replacement of the grinding part without disassembling and re-attaching it. The replacement method is simple and easy to operate. Attached Figure Description

[0020] Figure 1 This is a perspective view of the grinding equipment provided in an embodiment of the present invention;

[0021] Figure 2 This is a perspective view of the grinding equipment provided in an embodiment of the present invention;

[0022] Figure 3 This is a top view of the grinding equipment provided in an embodiment of this utility model;

[0023] Figure 4 yes Figure 2 Cross-sectional view along the AA direction;

[0024] Figure 5 yes Figure 2 Cross-sectional view along the BB direction;

[0025] Figure 6 This is a perspective view of the support body provided in an embodiment of the present utility model;

[0026] Figure 7 This is a perspective view of the support body provided in an embodiment of the present invention;

[0027] Figure 8 This is a perspective view of the first sliding part provided in an embodiment of the present invention;

[0028] Figure 9 This is a perspective view of the second sliding part provided in an embodiment of the present invention.

[0029] Explanation of reference numerals in the attached figures:

[0030] 10-Support body, 11-Grinding part, 12-Locking mating part, 121-Locking block, 13-Adjusting part, 131-Adjusting rod, 132-Elastic part, 14-Second moving groove, 15-Positioning mating part, 151-Positioning pin, 16-First guide groove, 17-Second guide groove, 181-First surface, 182-Second surface, 183-Third surface;

[0031] 20 - Polished parts;

[0032] 30-sliding member, 31-first sliding part, 311-locking part, 3111-locking groove, 312-first moving groove, 313-first guide bar, 32-second sliding part, 321-positioning part, 3211-positioning hole, 322-second guide bar;

[0033] 40-Adhesive parts;

[0034] 50 - Connector;

[0035] D1 - First direction, D2 - Second direction, D3 - Third direction. Detailed Implementation

[0036] The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0037] Reference Figures 1 to 9 As shown, this utility model provides a grinding device, including a support body 10, a grinding component 20, and a sliding component 30, wherein:

[0038] The support body 10 has a grinding part 11, which abuts against the grinding part 20. After the grinding part 11 is activated, the grinding part 20 can grind and polish the product. When the grinding part 20 wears out after grinding for a period of time and needs to be replaced, it can be moved on the surface of the support body 10 by the sliding part 30, changing the position of the grinding part 20 abutting against the grinding part 11 to achieve replacement.

[0039] The sliding member 30 is disposed on the support body 10. The sliding member 30 includes a first sliding part 31 and a second sliding part 32. The first sliding part 31 is movably disposed on the support body 10 along the first direction D1, and the second sliding part 32 is movably disposed on the support body 10 along the second direction D2. The opposite ends of the grinding member 20 are respectively connected to the first sliding member 30 and the second sliding member 30.

[0040] In the embodiments provided in this application, reference is made to Figure 6 as well as Figure 7As shown, the support body 10 includes a first surface 181, a second surface 182 and a third surface 183, which are sequentially arranged. The first surface 181 extends along a first direction D1, the second surface 182 is an arc-shaped surface, and the third surface 183 extends along a second direction D2. The angle between the first direction D1 and the second direction D2 is an acute angle.

[0041] The first surface 181, the second surface 182, and the third surface 183 constitute a support body 10 with a triangular longitudinal cross-section, as shown in the figure. Figure 1 and Figure 2 As shown, the grinding part 11 is located at the vertex of the triangular support body 10. The first direction D1 is the extension direction of the hypotenuse of the triangular support body 10, and the second direction D2 is the extension direction of the base of the triangular support body 10. When the first sliding part 31 moves along the first direction D1, that is, when the first sliding part 31 moves upward along the hypotenuse of the support body 10, it drives the grinding part 20 to move upward synchronously along the surface of the support body 10. When the grinding part 20 moves to the appropriate position, the first sliding part 31 stops sliding, thereby realizing the replacement of the position of the grinding part 20.

[0042] In order to ensure that the grinding part 20 remains in contact with the grinding part 11 during its movement, the second sliding part 32 needs to move synchronously along the second direction D2 along with the movement of the first sliding part 31. The coordinated movement of the first sliding part 31 and the second sliding part 32 can ensure that the grinding part 20 does not lose contact with the grinding part 11 when adjusting its position. This is because when the grinding part 20 moves upward along the inclined side of the support body 10, it may deviate from the contact surface with the grinding part 11 due to friction or tilt angle. The second sliding part 32 can adjust laterally to ensure that the grinding part 20 always maintains close contact with the grinding part 11, thereby ensuring the continuity and stability of the grinding process.

[0043] Compared to the prior art, which involves disassembling the grinding part 20 and then attaching it to a suitable position, the grinding device of this application can set multiple grinding positions on the support body 10. By moving the first sliding part 31, the grinding part 20 can be moved to the corresponding position to achieve the adjustment of the position of the grinding part 20. The operation method is simple and the adjustment of the position of the grinding part 20 is more accurate.

[0044] The polishing component 20 in this application is sandpaper. Both ends of the sandpaper are connected to the first sliding part 31 and the second sliding part 32, respectively. When it is necessary to change the polishing position of the sandpaper, this can be achieved by moving the first sliding part 31 along the first direction D1, causing the sandpaper to move synchronously. This operation is convenient, quick, and allows for accurate position adjustment. In other embodiments, the polishing component may be any other structure or part that can be used for polishing products, and this is not limited to any particular type.

[0045] After the position of the grinding part 20 is adjusted, it needs to be fixed to ensure the smooth progress of the grinding work. In one feasible implementation, refer to... Figure 4 As shown, the first sliding part 31 is provided with a locking part 311, referring to... Figure 6 As shown, the support body 10 is provided with a locking engagement part 12. The locking part 311 and the locking engagement part 12 can form a locking engagement to lock the position of the grinding part 20. When the grinding part 20 is moved to a suitable position, the locking engagement between the locking part 311 and the locking engagement part 12 locks the position of the first sliding part 31, thereby fixing the position of the grinding part 20. This ensures that the grinding part 20 maintains a stable position during the grinding process and avoids displacement under external force, which would affect the grinding efficiency.

[0046] Furthermore, referring to Figures 1 to 4 As shown, the support body 10 is provided with an adjusting member 13, and a locking engagement part 12 is provided on the adjusting member 13. The adjusting member 13 can move along a preset path. The locking state of the locking part 311 and the locking engagement part 12 is controlled by the position change of the adjusting member 13. When the adjusting member 13 is located at the beginning of the preset path, the locking part 311 and the locking engagement part 12 maintain a locked engagement, and the first sliding part 31 cannot move, thereby fixing the position of the grinding part 20. When the adjusting member 13 moves along the preset path to the end of the preset path, the first sliding part 31 is unlocked, and can then move along the first direction D1, thereby adjusting the position of the grinding part 20. After the grinding part 20 is adjusted to a suitable position, the adjusting member 13 is moved back to the beginning of the preset path, and the locking part 311 and the locking engagement part 12 re-engage, thereby fixing the position of the grinding part 20 again.

[0047] Preferably, refer to Figure 4 as well as Figure 8 As shown, the locking part 311 includes a plurality of locking grooves 3111, which are spaced apart along the first direction D1. The plurality of locking grooves 3111 are located on the side of the first sliding part 31 facing the bracket body 10. There is a first preset distance between adjacent locking grooves 3111. The first preset distance can be set according to actual needs to adapt to different grinding scenarios and the replacement needs of grinding parts 20.

[0048] Reference Figure 4 as well as Figure 6 As shown, the locking engagement part 12 is a locking block 121. The locking block 121 can extend into any locking groove 3111 to lock the position of the grinding part 20. When the first sliding part 31 moves a distance of a first preset distance, a locking groove 3111 is moved to a position corresponding to the locking block 121, so that the locking block 121 can form a locking engagement with the corresponding locking groove 3111.

[0049] The locking block 121 and multiple locking slots 3111 cooperate to form a segmented locking mechanism, which can adjust the position of the grinding part 20 at a fixed step distance, ensuring the accuracy and consistency of each adjustment.

[0050] Accordingly, refer to Figure 6 As shown, the adjusting member 13 includes an adjusting rod 131, a locking block 121 is disposed on the adjusting rod 131, and an elastic member 132 is sleeved on the adjusting rod 131. One end of the elastic member 132 is connected to the adjusting rod 131, and the other end of the elastic member 132 is connected to the bracket body 10, so as to apply an elastic force to the adjusting rod 131, so that the adjusting rod 131 can elastically move back and forth along a preset path.

[0051] Specifically, the preset path is the path along which the adjusting rod 131 moves in the third direction D3, which is perpendicular to the first direction D1 and is also the width direction of the support body 10.

[0052] Reference Figure 3 as well as Figure 8 As shown, the first sliding part 31 is provided with a first moving groove 312, which extends along the first direction D1. Multiple locking grooves 3111 are all connected to the first moving groove 312. When the first sliding part 31 moves along the first direction D1, the locking block 121 can move within the first moving groove 312.

[0053] Reference Figure 6 As shown, the support body 10 is provided with a second moving groove 14, which extends along the third direction D3. The adjusting rod 131 is disposed in the second moving groove 14. One end of the elastic member 132 is connected to the adjusting rod 131, and the other end of the elastic member 132 is connected to the inner wall surface of the second moving groove 14 in the third direction D3.

[0054] When the adjusting rod 131 is at the beginning of the preset path, the locking block 121 is located in the corresponding locking groove 3111. When the position of the grinding part 20 needs to be adjusted, the adjusting rod 131 is moved to the end of the preset path, so that the locking block 121 moves from the locking groove 3111 to the first moving groove 312. When the first sliding part 31 moves along the first direction D1, the locking block 121 moves synchronously along the first direction D1 in the first moving groove 312. After moving a first preset distance, the adjusting rod 131 returns to the beginning of the preset path, so that the locking block 121 can move into the corresponding locking groove 3111 to lock the first sliding part 31.

[0055] When the adjusting rod 131 moves to the end of the preset path in the second moving groove 14, it applies a force to the elastic member 132, causing the elastic member 132 to be compressed and undergo elastic deformation to accumulate elastic force. When the first sliding part 31 moves to the appropriate position, the elastic member 132 can apply the elastic force to the adjusting rod 131 to drive the adjusting rod 131 back to the beginning of the preset path.

[0056] In other embodiments, the locking part 311 and the locking engagement part 12 may adopt other structures or components capable of locking the first sliding part 31, which are not limited here.

[0057] In the embodiments provided in this application, reference is made to Figure 5 as well as Figure 9 As shown, the second sliding part 32 is provided with a positioning part 321, and the bracket body 10 is provided with a positioning engagement part 15. The positioning part 321 and the positioning engagement part 15 form a positioning engagement. Whether the second sliding part 32 has moved to a suitable position can be determined by whether the positioning part 321 and the positioning engagement part 15 form a positioning engagement.

[0058] Since the second sliding part 32 moves synchronously with the first sliding part 31, the positioning part 321 moves synchronously with the second sliding part 32 when the second sliding part 32 moves. When the positioning part 321 moves to form a positioning engagement with the positioning engagement part 15, the position of the second sliding part 32 is fixed, which indicates that the first sliding part 31 has moved to the appropriate position. Thus, the first sliding part 31 can be locked by the locking engagement of the locking part 311 and the locking engagement part 12, thereby completing one adjustment of the position of the grinding part 20.

[0059] In one feasible embodiment, the positioning part 321 includes a plurality of positioning holes 3211, which are spaced apart along the second direction D2. Adjacent positioning holes 3211 have a second preset distance, which can be set according to the position that the grinding part 20 needs to be adjusted to. The first preset distance is set accordingly based on the second preset distance. The positioning mating part 15 includes at least one positioning post 151. If there are multiple positioning posts 151, the distance between adjacent positioning posts 151 needs to be set according to the second preset distance. When the second sliding part 32 moves along the second direction D2 until the positioning post 151 is inserted into a positioning hole 3211, the position of the second sliding part 32 is fixed, indicating that the grinding part 20 has moved to the appropriate position.

[0060] Reference Figures 1 to 5As shown, in order to securely fix the grinding part 20 to the support body 10, the grinding device also includes an adhesive part 40. The grinding part 11 abuts against the adhesive part 40, and the opposite ends of the adhesive part 40 are respectively connected to the first sliding part 31 and the second sliding part 32. The grinding part 20 is adhered to the side of the adhesive part 40 away from the grinding part 11. When the first sliding part 31 moves along the first direction D1, the adhesive part 40 moves synchronously, thereby driving the grinding part 20 to move along the direction D1. The adhesive part 40 can adhere the grinding part 20, so that the grinding part 20 can be tightly attached to the support body 10.

[0061] Preferably, the adhesive part 40 is a Velcro or hook-and-loop fastener, which can adhere to the polishing part 20 with good adhesion, thus ensuring that the polishing part 20 remains fixed to the support body 10 during movement and polishing. When a new polishing part 20 needs to be replaced, simply peel the polishing part 20 off the adhesive part 40 and replace it with a new one. The operation is simple and can shorten the replacement time.

[0062] Furthermore, referring to Figure 4 as well as Figure 5 As shown, the grinding equipment also includes a connector 50, the grinding part 11 abuts against the connector 50, the opposite ends of the connector 50 are respectively connected to the first sliding part 31 and the second sliding part 32, and the adhesive part 40 is attached to the side of the connector 50 away from the grinding part 11.

[0063] The connector 50 is preferably a nylon connecting strip. The nylon connecting strip is flexible and can flexibly connect the first sliding part 31 and the second sliding part 32, so that the first sliding part 31 and the second sliding part 32 can move freely within a certain range, thereby adapting to sliding paths of different shapes and angles.

[0064] Because nylon material also has good adhesion, the nylon connecting strip can fit tightly with the adhesive part, so that the grinding part 20 will not loosen during the grinding process, thus ensuring the smooth progress of the grinding work.

[0065] The nylon connecting strip, as a flexible connector 50, combines the advantages of flexible connection and the ability to fit with the adhesive 40, providing greater flexibility and adaptability for the position adjustment device of the grinding part 20.

[0066] In order to ensure the stability of the movement of the first sliding part 31 and the second sliding part 32 during the movement of the first sliding part 31 and the first sliding part 32, in the embodiments provided in this application, the grinding device further includes a guide member, which includes a first guide part and a second guide part. The first guide part is located between the first sliding part 31 and the support body 10 and is used to guide the first sliding part 31 to move along the first direction D1. The second guide part is located between the second sliding part 32 and the support body 10 and is used to guide the second sliding part 32 to move along the second direction D2.

[0067] Reference Figure 4 , Figure 5 as well as Figure 8 As shown, the first guide portion includes a first guide groove 16 and a first guide bar 313. The first guide groove 16 extends along a first direction D1 and is disposed on opposite sides of the support body 10 along a third direction D3. The first guide bar 313 is disposed on opposite sides of the first sliding portion 31. When the first sliding portion 31 moves along the first direction D1, the first guide bar 313 can move within the first guide groove 16, thereby ensuring the stability of the first sliding portion 31 moving along the first direction D1.

[0068] Reference Figure 4 , Figure 5 as well as Figure 9 As shown, the second guide portion includes a second guide groove 17 and a second guide bar 322. The second guide groove 17 extends along the second direction D2 and is disposed on opposite sides of the support body 10 along the third direction D3. The second guide bar 322 is disposed on opposite sides of the second sliding portion 32. When the second sliding portion 32 moves along the second direction D2, the second guide bar 322 can move within the second guide groove 17, thereby ensuring the stability of the movement of the second sliding portion 32 along the second direction D2.

[0069] Based on the above embodiments, the adjustment process of the position of the grinding component 20 in the grinding device of this application is as follows: the adjusting rod 131 is moved to the end of the preset path, so that the locking block 121 moves from the corresponding locking groove 3111 to the first moving groove 312. Then, the first sliding part 31 is driven to move upward along the first direction D1, which drives the grinding component 20 and the second sliding part 32 to move synchronously. When the second sliding part 32 moves, when the positioning post 151 moves from one positioning hole 3211 to the adjacent positioning hole 3211, the position of the second sliding part 32 is fixed, indicating that the grinding component 20 has moved to the appropriate position, and the locking block 121 moves to the position corresponding to the adjacent locking groove 3111. At this time, the elastic member 132 drives the adjusting rod 131 to return to the beginning of the preset path, and the locking block 121 can move into the corresponding locking groove 3111, thereby locking the first sliding part 31, thus completing one adjustment of the position of the grinding component 20.

[0070] The above description, based on the embodiments shown in the drawings, details the structure, features, and effects of this utility model. The above description is only a preferred embodiment of this utility model, but the scope of implementation of this utility model is not limited to what is shown in the drawings. Any changes made in accordance with the concept of this utility model, or modifications to equivalent embodiments, that do not exceed the spirit covered by the specification and drawings, shall be within the protection scope of this utility model.

Claims

1. A sharpening apparatus characterized by, The polishing device comprises a support body, a sliding member, a polishing member and an adjusting member. The support body has a polishing portion. The sliding member comprises a first sliding portion and a second sliding portion. The first sliding portion is movably arranged on the support body along a first direction. The second sliding portion is movably arranged on the support body along a second direction. The polishing portion is in abutment with the polishing member.

2. The sharpening apparatus of claim 1, wherein, The first sliding portion is used to drive the second sliding portion to move along the second direction when the first sliding portion moves along the first direction, so that the polishing member moves relative to the polishing portion and keeps abutment with the polishing portion. The support body is provided with an adjusting member.

3. The sharpening apparatus of claim 2, wherein, The adjusting member is provided with a locking matching portion.

4. The sharpening apparatus of claim 3, wherein, The first sliding portion is provided with a locking portion.

5. The sharpening apparatus of claim 1, wherein, The locking portion and the locking matching portion can form a locking cooperation.

6. The sharpening apparatus of claim 5, wherein, The adjusting member can move along a preset path.

7. The sharpening apparatus of claim 1, wherein, When the adjusting member is located at the starting end of the preset path, the locking portion and the locking matching portion keep locking cooperation to lock the position of the polishing member.

8. The sharpening apparatus of claim 1, wherein, When the adjusting member moves to the end of the preset path, the first sliding portion can move along the first direction to move the polishing member relative to the polishing portion. The locking portion comprises a plurality of locking grooves. The locking matching portion is a locking block. The locking block is used to extend into any one of the locking grooves to lock the position of the polishing member. The adjusting member comprises an adjusting rod. The locking block is arranged on the adjusting rod. An elastic member is sleeved on the adjusting rod. One end of the elastic member is connected with the adjusting rod. The other end of the elastic member is connected with the support body to apply an elastic force to the adjusting rod. The second sliding portion is provided with a positioning portion. The support body is provided with a positioning matching portion. The positioning portion and the positioning matching portion form a positioning cooperation. The positioning portion comprises a plurality of positioning holes. The positioning matching portion comprises at least one positioning column. When the second sliding portion moves along the second direction until the positioning column is embedded in one of the positioning holes, the position of the polishing member is fixed. The support body comprises a first surface, a second surface and a third surface. The first surface, the second surface and the third surface are sequentially arranged. The first surface extends along the first direction. The third surface extends along the second direction. The included angle between the first direction and the second direction is an acute angle. The second surface is an arc surface. The polishing device further comprises a sticking member. The polishing portion is in abutment with the sticking member. The polishing member is stuck on the side of the sticking member away from the polishing portion.

9. The sharpening apparatus of claim 8, wherein, The polishing device further comprises a connecting piece, the polishing part abuts against the connecting piece, opposite ends of the connecting piece are connected with the first sliding part and the second sliding part respectively, and the adhesive piece is attached to a side of the connecting piece away from the polishing part.

10. The sharpening apparatus of claim 1, wherein, The polishing device further comprises a guide piece, the guide piece comprises a first guide part and a second guide part, the first guide part is located between the first sliding part and the support body, the first guide part is used for guiding the first sliding part to move in the first direction, and the second guide part is located between the second sliding part and the support body, the second guide part is used for guiding the second sliding part to move in the second direction.

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