A mounting mechanism, crossbeam module and calibration device

Abstract

This utility model discloses a mounting mechanism, a crossbeam module, and a calibration device. The mounting mechanism includes a mounting body, a clamping block, and an elastic element. The mounting body is used to mount a pattern plate. The clamping block is movably connected to the mounting body and together with the mounting body forms a snap-fit ​​groove for engaging with the crossbeam. One end of the elastic element is connected to the mounting body, and the other end is connected to the clamping block. When an external force is applied to the clamping block, causing it to move relative to the mounting body to compress the elastic element, the opening of the snap-fit ​​groove will expand; and when the elastic element returns to its original shape, the opening of the snap-fit ​​groove will shrink. Thus, the snap-fit ​​groove formed between the clamping block and the mounting body allows for engagement with the crossbeam. During use, the elastic deformation capability of the elastic element can be used to adjust the relative position between the clamping block and the mounting body to adjust the size of the snap-fit ​​groove, facilitating quick installation or removal of the mounting mechanism from the crossbeam and simplifying user operation.

Description

Technical Field

[0001] This utility model relates to the field of vehicle calibration, and in particular to a mounting mechanism, a crossbeam module, and a calibration device. Background Technology

[0002] As an indispensable means of transportation, automobiles have played an increasingly important role in people's lives. The four wheels of a car have specific relative positions with the steering knuckle, front axle, and rear axle. When a car is in motion, vibrations or other factors can cause angular deviations between the four wheels and these components, affecting the car's normal operation. Therefore, cars need to undergo periodic four-wheel alignment using calibration equipment to calibrate the relative positions of the four wheels with the steering knuckle, front axle, or rear axle.

[0003] When calibrating equipment, pattern plates are usually mounted on the crossbeam of the calibration equipment via a mounting mechanism. Currently, the mounting mechanism typically uses a slider embedded in a groove in the crossbeam to achieve the connection. When disassembling, the mounting mechanism needs to be slid to the end to be removed, which is quite troublesome and inconvenient. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model provides a user-friendly mounting mechanism, a crossbeam module, and a calibration device.

[0005] The technical problem solved by this utility model embodiment is addressed by the following technical solution:

[0006] A mounting mechanism includes a mounting body, a clamping block, and an elastic element. The mounting body is used to mount a pattern plate. The clamping block is movably connected to the mounting body and together with the mounting body forms a snap-fit ​​groove for engaging with a crossbeam. One end of the elastic element is connected to the mounting body, and the other end is connected to the clamping block. When an external force is applied to the clamping block, causing it to move relative to the mounting body to compress the elastic element, the opening of the snap-fit ​​groove will expand; and when the elastic element returns to its original shape, the opening of the snap-fit ​​groove will shrink.

[0007] In some embodiments, the mounting body includes a main body portion and a clamping portion connected to each other. The main body portion has a first side end and a second side end disposed opposite to each other. The first side end of the main body portion is used to mount a pattern plate, and the second side end of the main body portion is provided with the clamping portion. The clamping portion and the clamping block together form the snap-fit ​​groove.

[0008] In some embodiments, the clamping part is provided with a first mounting hole, the clamping block is provided with a second mounting hole, one end of the elastic member is connected to the first mounting hole, and the other end of the elastic member is connected to the second mounting hole.

[0009] In some embodiments, the clamping block includes a connecting portion, a barb portion, and a protrusion that protrudes from the connecting portion. The connecting portion is movably connected to the main body portion. The barb portion is connected to one end of the connecting portion near the clamping portion. The protrusion is connected to the connecting portion and abuts against the elastic member. The barb portion and the clamping portion together form the snap-fit ​​groove.

[0010] When an external force is applied to the connecting portion to cause the protrusion to press against the elastic member, the barb portion moves away from the clamping portion to enlarge the opening of the snap-fit ​​groove, and when the elastic member recovers its deformation, the barb portion moves towards the clamping portion to reduce the opening of the snap-fit ​​groove.

[0011] In some embodiments, the clamping block further includes an extension connected to the connecting portion, the extension extending along a first direction, the first direction being the direction from the second side end of the main body toward the first side end.

[0012] In some embodiments, the end face of the extension away from the barb is a non-smooth surface.

[0013] In some embodiments, the mounting mechanism further includes at least one magnetic suction member, and the first side end of the main body is provided with at least one mounting groove, one of the magnetic suction members being fixed in one of the mounting grooves, the magnetic suction member being used to magnetically attract the pattern plate; and / or, the first side end of the main body is provided with at least two spaced positioning protrusions; and / or, the mounting mechanism further includes a scale pointer, the clamping block being provided with a clearance opening, one end of the scale pointer being connected to the main body, and the other end of the scale pointer extending out of the clearance opening; and / or, the mounting mechanism further includes a guide assembly, the guide assembly being respectively connected to the main body and the clamping block, the guide assembly being used to guide the clamping block to move in a specific direction to press against the elastic member; and / or, at least one outer surface of the mounting body is a knurled surface.

[0014] The technical problem solved by this utility model embodiment also adopts the following technical solution:

[0015] A crossbeam module includes the aforementioned mounting mechanism and a crossbeam. The mounting mechanism further includes a first transmission device connected to the clamping block. The crossbeam includes a beam body and a second transmission device mounted on the beam body. The beam body includes a snap-fit ​​portion mounted in a snap-fit ​​groove. The second transmission device is connected to the first transmission device and is used to connect with the first transmission device to guide the movement of the mounting body.

[0016] In some embodiments, the first transmission device includes a bearing gear and a gear shaft, the gear shaft being connected to the clamping block, the bearing gear being rotatably mounted on the gear shaft, and the second transmission device being a rack, the rack being mounted on the inner wall of the beam, the bearing gear being meshed with the rack.

[0017] The technical problem solved by this utility model embodiment also adopts the following technical solution:

[0018] A calibration device includes the aforementioned mounting mechanism or the aforementioned beam module.

[0019] The beneficial effects of this utility model embodiment are as follows: One embodiment of the mounting mechanism includes a mounting body, a clamping block, and an elastic element. The mounting body is used to mount a pattern plate. The clamping block is movably connected to the mounting body and together with the mounting body forms a snap-fit ​​groove for engaging with a crossbeam. One end of the elastic element is connected to the mounting body, and the other end is connected to the clamping block. When an external force is applied to the clamping block, causing it to move relative to the mounting body to compress the elastic element, the opening of the snap-fit ​​groove will expand; and when the elastic element recovers its deformation, the opening of the snap-fit ​​groove will shrink. Thus, the snap-fit ​​groove formed between the clamping block and the mounting body allows for engagement with the crossbeam. During use, the elastic deformation capability of the elastic element allows adjustment of the relative position between the clamping block and the mounting body to adjust the size of the snap-fit ​​groove. This facilitates quick installation or removal of the mounting mechanism from the crossbeam, making it convenient for users. Attached Figure Description

[0020] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0021] Figure 1 This is a schematic diagram of the mounting mechanism according to one embodiment of this application;

[0022] Figure 2 yes Figure 1 A diagram from another perspective;

[0023] Figure 3 yes Figure 1 A sectional view;

[0024] Figure 4 yes Figure 1 Exploded view;

[0025] Figure 5 yes Figure 4 A diagram from another perspective;

[0026] Figure 6 This is a schematic diagram of a beam module according to another embodiment of this application;

[0027] Figure 7 yes Figure 6 Exploded view;

[0028] Figure 8 yes Figure 6 A sectional view;

[0029] In the diagram: 1. Mounting mechanism; 2. Mounting body; 3. Clamping block; 4. Elastic element; 5. Guide assembly; 6. Scale pointer; 7. Magnetic suction element; 8. Hanging element; 9. First transmission device; 21. Main body; 22. Clamping part; 23. Positioning protrusion; 24. Limiting block; 2a. First side end; 2b. Second side end; 31. Connecting part; 32. Barb part; 33. Protrusion; 34. Extension part; 341. Non-smooth surface; 201. First mounting hole; 202. Mounting groove; 301. Second mounting hole; 302. Clearance opening; 101. Snap-fit ​​groove; 51. Slide rail; 52. Slider; 91. Bearing gear; 92. Gear shaft;

[0030] 100, crossbeam module; 200, crossbeam; 210, beam body; 220, second transmission device; 211, snap-fit ​​part. Detailed Implementation

[0031] To facilitate understanding of this utility model, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is described as "fixed to" another element, it can be directly on the other element, or one or more intermediate elements may exist between them. When an element is described as "connected" to another element, it can be directly connected to the other element, or one or more intermediate elements may exist between them. The terms "upper," "lower," "inner," "outer," "vertical," "horizontal," etc., used in this specification indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0032] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0033] Furthermore, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0034] like Figure 1-3 As shown, one embodiment of this application provides a mounting mechanism 1, including a mounting body 2, a clamping block 3, and an elastic member 4. The clamping block 3 is movably connected to the mounting body 2, and the clamping block 3 and the mounting body 2 together form a snap-fit ​​groove 101, which is used to snap-fit ​​with a crossbeam. The two ends of the elastic member 4 are respectively connected to the mounting body 2 and the clamping block 3. The mounting body 2 is used to mount the pattern plate.

[0035] When an external force is applied to the clamping block 3 and causes it to move relative to the mounting body 2 to compress the elastic element 4, the opening of the snap-fit ​​groove 101 will expand; and when the elastic element 4 recovers its deformation, the opening of the snap-fit ​​groove 101 will shrink. That is, the relative position between the clamping block 3 and the mounting body 2 can be adjusted by utilizing the elastic deformation capability of the elastic element 4, thereby adjusting the size of the snap-fit ​​groove 101. This facilitates the user in quickly installing the mounting mechanism 1 onto or removing it from the crossbeam, making operation convenient and easy to use.

[0036] In use, a force can be applied to the clamping block 3 to compress the elastic element 4, causing the slot of the locking groove 101 to expand to accommodate the crossbeam to be locked. Then, the locking groove 101 is installed with the crossbeam to be locked. When the force applied to the clamping block 3 is removed, the elastic element 4 will restore its elastic deformation to reduce the size of the slot of the locking groove 101. When the locking groove 101 is reduced to the size to be locked with the crossbeam to be locked, the mounting mechanism 1 is installed with the crossbeam. After the vehicle's four-wheel alignment calibration is completed, when it is necessary to remove the mounting mechanism 1 from the crossbeam, a force can be applied to the clamping block 3 again to compress the elastic element 4, causing the slot of the locking groove 101 to expand and disengage from the crossbeam. At this time, the mounting mechanism 1 can be removed from the crossbeam. The operation is relatively quick and convenient.

[0037] In some embodiments, such as Figure 3 As shown, the mounting body 2 includes a main body portion 21 and a clamping portion 22 connected to each other. The main body portion 21 has a first side end 2a and a second side end 2b disposed opposite to each other. The first side end 2a of the main body portion 21 is used to mount the pattern plate, and the second side end 2b of the main body portion 21 is provided with the clamping portion 22. The clamping portion 22 is used to form a snap-fit ​​groove 101 together with the clamping block 3. In this embodiment, the clamping portion 22 protrudes from the end face of the main body portion 21, and there is a space between the clamping portion 22 and the surface of the main body portion 21 for the clamping block 3 to move. When an external force is applied to the clamping block 3, the clamping block 3 can move relative to the main body portion 21 within this space.

[0038] At least one outer surface of the mounting body 2 is knurled, which helps to increase the friction between the mounting body 2 and the user's hand, making it easier for the user to remove the mounting mechanism 1.

[0039] In some embodiments, please combine Figure 3-5 As shown, the clamping block 3 includes a connecting portion 31, a barb portion 32, and a protrusion 33 protruding from the connecting portion 31. The connecting portion 31 is movably connected to the main body 21. The barb portion 32 is connected to the end of the connecting portion 31 near the clamping portion 22. The protrusion 33 is connected to the connecting portion 31 and presses against the elastic member 4. The barb portion 32 and the clamping portion 22 together form a snap-fit ​​groove 101. When an external force is applied to the connecting portion 31 to cause the protrusion 33 to press against the elastic member 4, the barb portion 32 moves away from the clamping portion 22 to enlarge the opening of the snap-fit ​​groove 101. When the elastic member 4 recovers its deformation, the barb portion 32 moves towards the clamping portion 22 to reduce the opening of the snap-fit ​​groove 101. The shape of the barb portion 32 varies according to the shape of the crossbeam to be installed so that the barb portion 32 fits against the crossbeam during snap-fit ​​to achieve a better snap-fit ​​effect.

[0040] In this way, when an external force is applied to the connecting part 31, the elastic member 4 is indirectly pressed through the protrusion 33, thereby obtaining space for the connecting part 31 to move relative to the main body part 21. The size of the opening of the snap-fit ​​groove 101 is adjusted by adjusting the distance between the hook part 32 and the clamping part 22 to meet the purpose of clamping crossbeams of different thicknesses. Moreover, it is only necessary to enlarge the opening of the snap-fit ​​groove 101 to release the snap-fit ​​between the mounting mechanism 1 and the crossbeam, which facilitates user operation.

[0041] In some embodiments, such as Figure 4 and Figure 5 As shown, the clamping block 3 also includes an extension 34, which is connected to the connecting portion 31. The extension 34 extends along a first direction, which is the direction from the second side end 2b of the main body 21 toward the first side end 2a. This allows the user to indirectly compress the elastic member 4 by pressing the extension 34 to apply force to the connecting portion 31 and the protrusion 33, thereby obtaining space for the clamping block 3 to move relative to the main body 21. In this embodiment, the end face of the extension 34 facing away from the barb portion 32 is a non-smooth surface 341, which increases the friction between the hand and the extension 34 when the user applies force to it, preventing slippage when pressing the extension 34.

[0042] Non-smooth surface 341 refers to the end face not being a flat surface, such as a knurled surface with serrations, a surface with continuous recessed areas, or other surfaces, as long as they can increase the friction with the hand when pressed.

[0043] In some embodiments, such as Figure 3 As shown, the clamping part 22 is provided with a first mounting hole 201, and the clamping block 3 is provided with a second mounting hole 301. One end of the elastic member 4 is connected to the first mounting hole 201, and the other end of the elastic member 4 is connected to the second mounting hole 301. In this way, under the action of the first mounting hole 201 and the second mounting hole 301, the elastic member 4 can be limited, preventing the elastic member 4 from twisting and dislodging from its mounting position when compressed, which helps to ensure the stability of the mounting mechanism 1.

[0044] It should be understood that the elastic element 4 can be a spring, a silicone block, a butterfly-shaped spring, or any other type of elastic element, as long as it has the ability to deform elastically.

[0045] In order to enable the clamping block 3 to move in a directional manner relative to the mounting body 2, the mounting mechanism 1 also includes a guide component 5, which is connected to the main body 21 and the clamping block 3 respectively. The guide component 5 is used to guide the clamping block 3 to move in a directional manner to press against the elastic member 4.

[0046] In some embodiments, such as Figure 4 and Figure 5As shown, the guide assembly 5 includes a slide rail 51 and a slider 52 that can be slidably connected. One of the slide rail 51 and the slider 52 is connected to the mounting body 2, and the other is connected to the clamping block 3. This allows the clamping block 3 to move linearly relative to the mounting body 2 when an external force is applied to it, thereby acting as a linear compression elastic element 4, which is beneficial to the stability of the clamping block 3 and the clamping part 22 clamping the crossbeam. In this embodiment, the slide rail 51 is connected to the mounting body 2, and the slider 52 is connected to the side of the clamping block 3 facing the mounting body 2. In order to limit the distance that the slider 52 moves relative to the slide rail 51, limit blocks 24 are provided on both sides of the slide rail 51. When the slider 52 moves relative to the slide rail 51 to abut the limit block 24, the slider 52 moves to the limit position relative to the slide rail 51, preventing the slider 52 from exceeding its stroke and disengaging from the slide rail. In other embodiments, the guide component 5 includes a guide groove (not shown) and a guide protrusion (not shown). The guide groove is disposed on the mounting body 2, and one end of the guide protrusion is connected to the side of the clamping block 3 facing the mounting body 2. The other end of the wire protrusion is movably connected to the guide groove. Thus, under the combined action of the guide groove and the guide protrusion, the clamping block 3 can move directionally relative to the mounting body 2 when an external force is applied to the clamping block 3.

[0047] It should be understood that, in addition to the two implementation methods mentioned above, the guide component 5 can also adopt other structures, as long as it can enable the clamping block 3 to move directionally relative to the mounting body 2.

[0048] In some embodiments, such as Figure 3 As shown, the clamping block 3 has a clearance opening 302, and the mounting mechanism 1 also includes a scale pointer 6. One end of the scale pointer 6 is connected to the main body 21, and the other end of the scale pointer 6 extends out of the clearance opening 302. The scale pointer 6 is used to indicate the current position of the mounting mechanism 1 relative to the crossbeam. In use, the mounting mechanism 1 is installed on the crossbeam. Since the crossbeam is provided with scales representing different positions, the relative position between the mounting mechanism 1 and the crossbeam can be known through the indication of the scale pointer 6, making it convenient for the user to move the mounting mechanism 1 as needed.

[0049] In some embodiments, please combine Figure 1 and Figure 4 As shown, to enable the mounting body 2 to mount the pattern board more quickly, the mounting mechanism 1 also includes at least one magnetic attractor 7. The first side end 2a of the main body 21 has at least one mounting groove 202, and one magnetic attractor 7 is fixed within one mounting groove 202. The magnetic attractor 7 is used to magnetically engage with the pattern board. The magnetic force applied to the pattern board by the magnetic attractor 7 facilitates rapid installation between the pattern board and the mounting body 2. In this embodiment, there are four mounting grooves 202 and four magnetic attractors 7, arranged in a circular array.

[0050] Furthermore, please combine Figure 1 and Figure 4 As shown, the first side end 2a of the main body 21 is provided with at least two spaced positioning protrusions 23. The positioning protrusions 23 are used for positioning and installing the pattern plate, so as to facilitate quick positioning of the installation position when the pattern plate is installed on the mounting body 2, which helps to improve the efficiency of mounting the pattern plate.

[0051] In some embodiments, such as Figure 1 As shown, the mounting mechanism 1 also includes a mounting bracket 8, which is disposed on the mounting body 2 and is used for mounting pattern boards or other components. In this embodiment, the mounting bracket 8 is a hook, which is connected to the main body 21 of the mounting body 2.

[0052] One embodiment of the mounting mechanism 1 in this application includes a mounting body 2, a clamping block 3, and an elastic member 4. The mounting body 2 is used to mount a pattern plate. The clamping block 3 is movably connected to the mounting body 2 and together with the mounting body 2 forms a snap-fit ​​groove 101, which is used to snap-fit ​​with a crossbeam. One end of the elastic member 4 is connected to the mounting body 2, and the other end is connected to the clamping block 3. When an external force is applied to the clamping block 3 and causes the clamping block 3 to move relative to the mounting body 2 to compress the elastic member 4, the opening of the snap-fit ​​groove 101 will expand; and when the elastic member 4 returns to its original shape, the opening of the snap-fit ​​groove 101 will shrink. In this way, the slot constructed between the clamping block 3 and the mounting body 2 can be used to engage with the crossbeam. During use, the elastic deformation capability of the elastic element 4 can be used to adjust the relative position between the clamping block 3 and the mounting body 2, so as to adjust the size of the slot 101. This facilitates the quick installation of the mounting mechanism 1 onto or off the crossbeam, making it convenient for users to operate and use.

[0053] like Figure 6-8 As shown, another embodiment of this application provides a beam module 100, which includes the mounting mechanism 1 and the beam 200 in the above embodiment. The mounting mechanism 1 is installed on the beam 200 and can move relative to the beam 200.

[0054] Specifically, such as Figure 7-8As shown, the mounting mechanism 1 also includes a first transmission device 9, which is mounted on the clamping block 3. The crossbeam 200 includes a beam body 210 and a second transmission device 220 mounted on the beam body 210. The beam body 210 includes a snap-fit ​​part 211, which is mounted on the snap-fit ​​groove 101. The second transmission device 220 is connected to the first transmission device 9 and is used to connect with the first transmission device 9 to guide the movement of the mounting body 2. In this embodiment, the first transmission device 9 includes a bearing gear 91 and a gear shaft 92. The gear shaft 92 is connected to the clamping block 3, and the bearing gear 91 is rotatably mounted on the gear shaft 92. The second transmission device 220 is a rack, which is mounted on the inner wall of the beam body 210. The bearing gear 91 meshes with the rack. Thus, under the action of the rack, when the drive gear rotates, it can drive the clamping block 3 to move synchronously with the mounting body 2, thereby adjusting the position of the mounting body 2 relative to the crossbeam 200 to adjust the position of the mounting pattern plate. Meanwhile, since the gears and racks fill the gap between the clamping part 22 and the inner wall of the beam 210 when they mesh with each other, it is beneficial to make the connection between the mounting body 2 and the crossbeam 200 compact.

[0055] Of course, the first transmission device 9 and the second transmission device 220 can also be other types, such as guide blocks and guide rails, as long as they can guide the directional movement of the mounting body 2 relative to the beam 210.

[0056] When the vehicle calibration is completed and the mounting mechanism 1 needs to be removed, the crossbeam module 100 of this application only needs to be pressed to make the bearing gear 91 disengage from the rack as the clamping block 3 moves, and the opening of the snap-fit ​​groove 101 will expand, thereby facilitating the removal of the entire mounting mechanism 1 at any time.

[0057] Another embodiment of this application provides a calibration device, including the mounting mechanism 1 in the above embodiments or the crossbeam module 100 in the above embodiments. The calibration device is used to assist in four-wheel alignment of the vehicle's wheels.

[0058] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A mounting mechanism, characterized by, include: Mounting body, used to mount the pattern board; The clamping block is movably connected to the mounting body and together with the mounting body forms a snap-fit ​​groove for engaging with the crossbeam. An elastic element, one end of which is connected to the mounting body and the other end of which is connected to the clamping block; Specifically, when an external force is applied to the clamping block and causes the clamping block to move relative to the mounting body to compress the elastic member, the opening of the snap-fit ​​groove will expand; and when the elastic member returns to its original shape, the opening of the snap-fit ​​groove will shrink.

2. The mounting mechanism of claim 1, wherein The mounting body includes a main body and a clamping part connected to each other. The main body has a first side end and a second side end that are disposed opposite to each other. The first side end of the main body is used to install a pattern plate, and the second side end of the main body is provided with the clamping part. The clamping part and the clamping block together form the snap-fit ​​groove.

3. The mounting mechanism of claim 2, wherein The clamping part is provided with a first mounting hole, the clamping block is provided with a second mounting hole, one end of the elastic member is connected to the first mounting hole, and the other end of the elastic member is connected to the second mounting hole.

4. The mounting mechanism of claim 2, wherein The clamping block includes a connecting part, a barb part, and a protrusion that protrudes from the connecting part. The connecting part is movably connected to the main body. The barb part is connected to one end of the connecting part near the clamping part. The protrusion is connected to the connecting part and presses against the elastic member. The barb part and the clamping part together form the snap-fit ​​groove. When an external force is applied to the connecting portion to cause the protrusion to press against the elastic member, the barb portion moves away from the clamping portion to enlarge the opening of the snap-fit ​​groove, and when the elastic member recovers its deformation, the barb portion moves towards the clamping portion to reduce the opening of the snap-fit ​​groove.

5. The mounting mechanism of claim 4, wherein The clamping block further includes an extension portion connected to the connecting portion. The extension portion extends along a first direction, which is the direction from the second side end of the main body portion toward the first side end.

6. The mounting mechanism of claim 5, wherein, The end face of the extension that is away from the barb is a non-smooth surface.

7. The mounting mechanism according to any one of claims 2 to 6, wherein The mounting mechanism further includes at least one magnetic component. The first side end of the main body is provided with at least one mounting groove. One magnetic component is fixed in one of the mounting grooves. The magnetic component is used to magnetically attract the pattern plate. And / or, the first side end of the main body is provided with at least two spaced positioning protrusions; And / or, the mounting mechanism further includes a scale pointer, the clamping block is provided with a clearance opening, one end of the scale pointer is connected to the main body, and the other end of the scale pointer extends out of the clearance opening; And / or, the mounting mechanism further includes a guide assembly, which is connected to the main body and the clamping block respectively, and the guide assembly is used to guide the clamping block to move in a specific direction to press against the elastic member; And / or, at least one outer surface of the mounting body is knurled.

8. A beam module, characterized in that, include: The mounting mechanism as described in any one of claims 1-7 further includes a first transmission device connected to the clamping block; A crossbeam includes a beam body and a second transmission device mounted on the beam body. The beam body includes a snap-fit ​​portion mounted in a snap-fit ​​groove. The second transmission device is connected to the first transmission device and is used to connect with the first transmission device to guide the movement of the mounting body.

9. The beam module according to claim 8, characterized in that, The first transmission device includes a bearing gear and a gear shaft. The gear shaft is connected to the clamping block, and the bearing gear is rotatably mounted on the gear shaft. The second transmission device is a rack, which is mounted on the inner wall of the beam. The bearing gear meshes with the rack.

10. A calibration device, characterized in that, It includes the mounting mechanism as described in any one of claims 1-7 or the beam module as described in any one of claims 8-9.

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