A clamping component and a method for its clamping and assembling equipment

Abstract

The present invention relates to a clamping component for fixedly connecting a device to a C-shaped groove, and is characterized in that it includes a buckle and a buckle support. Among them, the buckle includes a movable bracket and fixing blocks arranged at both ends of the movable bracket. A clamping groove for clamping the C-shaped groove is formed at the top of the fixing block, and the movable bracket is made of a metal elastic sheet; the buckle support includes a U-shaped support block. When the buckle is assembled in the C-shaped groove, the movable bracket is bent to form a concave U-shaped arc, and the U-shaped support block is inserted and fixed in the U-shaped arc, and at this time, there is an interference fit between the U-shaped support block and the overall U-shaped movable bracket. This application can effectively overcome the deficiencies of the prior art, improve the clamping stability, meet the installation requirements of large-weight devices at the same time, have low installation accuracy requirements, and are easy to operate.

Description

Technical Field

[0001] The present invention relates to the technical field of the assembly of rail vehicle components, and particularly to a clamping component and a method for its clamping assembly equipment. Background Art

[0002] While the functionality of vehicles is developing rapidly day by day, instruments and other equipment components all adopt an assembly structure that is convenient for assembly to improve the assembly efficiency of vehicles. With the rapid development of China's rail transit industry, in order to meet the requirements of rapid assembly and the convenience of maintenance and repair, the requirement for assembly efficiency is also getting higher and higher.

[0003] Currently, the installation of equipment components is often carried out in a clamping form. The operation is simple and the disassembly and assembly of the equipment can be completed without using special tools. Among them, there are two prominent solutions. One is the clamping solution with the elastic deformation of a metal elastic sheet, and the other is the clamping solution with a barbed structure, each having its own advantages and disadvantages.

[0004] Specifically, for the clamping solution with the elastic deformation of a metal elastic sheet, generally a base needs to be set as the interface of the metal elastic sheet, and the metal elastic sheet is connected to the base. During the installation process, the metal elastic sheet undergoes elastic deformation. After the stroke is completed, the metal elastic sheet is no longer restricted by the installation hole, the elastic sheet returns to its original state, and a certain supporting force is generated to achieve the assembly of the placed part and the installation hole. However, this clamping solution is restricted by the deformation of the metal elastic sheet, provides limited stability, has high precision requirements for the part matching, and generally requires precise die opening for the interface base of the metal elastic sheet to ensure the precision. That is to say, the assembly precision requirements are high and it cannot adapt to a strong vibration installation environment.

[0005] For the clamping solution with a barbed structure, after the equipment to be installed and the interface are matched, the clamping component uses the deformation of the "barbed" structure to generate an elastic force to achieve the fastening of the equipment and the interface. This clamping solution is restricted by the material of the "barbed" structure, provides limited stability, and there will be a gap in the tangential direction of the contact surface, and the equipment will generate slight vibrations during operation, which is not suitable for the assembly of larger weights.

[0006] Therefore, a new type of clamping component structure is needed to meet the requirements of large weight and low precision installation in rail transit vehicles. Summary of the Invention

[0007] The purpose of the present invention is to provide a clamping component and a method for its clamping assembly equipment, which can effectively overcome the deficiencies of the prior art, improve the clamping stability, meet the installation requirements of large weight equipment at the same time, have low installation precision requirements, and are easy to operate.

[0008] To achieve the above object, the technical solution adopted by the present invention is:

[0009] The present invention provides a clamping component for fixedly connecting a device to a C-shaped groove, which is characterized in that it includes a buckle and a buckle support. Among them,

[0010] the buckle includes a movable bracket and fixing blocks arranged at both ends of the movable bracket. A clamping groove for clamping the C-shaped groove is formed at the top of the fixing block, and the movable bracket is made of a metal elastic sheet;

[0011] the buckle support includes a U-shaped support block. When the buckle is assembled in the C-shaped groove, the movable bracket is bent to form an inward concave U-shaped arc, and the U-shaped support block is inserted and fixed in the U-shaped arc, and at this time, there is an interference fit between the U-shaped support block and the overall U-shaped movable bracket.

[0012] For the above technical solution, the applicant has further optimization measures.

[0013] Optionally, the movable bracket is divided into two symmetrically upper and lower parts, and the connection part of the two parts is connected together by a rotating shaft.

[0014] Optionally, both the upper end and the lower end of the movable bracket have T-shaped insertion strips. A T-shaped insertion slot is formed at the bottom of the fixing block along the length direction, and the insertion strips are inserted into the T-shaped insertion slot to fix the movable bracket and the two fixing blocks.

[0015] Further, the clamping component further includes two auxiliary support blocks. A through groove is arranged in the movable bracket, and the two auxiliary support blocks are respectively fixed in the through groove by pin shafts. The auxiliary support blocks are arranged at the upper and lower ends of the through groove. When the buckle is assembled in the C-shaped groove, the auxiliary support blocks are located below the fixing blocks.

[0016] Furthermore, when the buckle is assembled in the C-shaped groove, the U-shaped support block is clamped between the upper and lower two auxiliary support blocks, and there is an interference fit between the U-shaped support block and the auxiliary support blocks.

[0017] Optionally, the device is fixedly connected to the fixing block through a claw, or the device is directly fixedly connected to the fixing block.

[0018] Optionally, the buckle support further includes a cross support block, the cross support block is fixedly connected to the U-shaped support block, and the claw leans against the stepped shoulders on both sides of the cross support block.

[0019] Further, a clamping groove or a threaded hole for docking and fixing the device is formed on the claw.

[0020] Optionally, a limiting edge is arranged along the length direction on the outer edge of the clamping groove, and the limiting edge is clamped to the inner side wall of the C-shaped groove.

[0021] In particular, the present application also provides a method for clamping a C-shaped groove and a device by using the clamping component as described above, including the following operation steps:

[0022] Step 1: Insert and fix the buckle;

[0023] Pinch the two fixing blocks relatively, compress the movable bracket, and then extend the movable bracket into the C-shaped groove;

[0024] Step 2: Fix the device;

[0025] Release the two fixing blocks to make the movable bracket open, and the clamping grooves of the two fixing blocks are clamped with the wall plate of the C-shaped groove. Assemble the claw on the fixing block, and fixedly connect the device with the claw;

[0026] Step 3: Insert the buckle support;

[0027] Insert the U-shaped support block of the buckle support between the movable brackets that have been bent into a U shape. At the same time, the U-shaped support block is attached to the auxiliary support block and pushes the auxiliary support block towards the direction of the two fixing blocks. Furthermore, the auxiliary support block is attached to and pushes the fixing block to lock the fixing block and the C-shaped groove.

[0028] Compared with the prior art, the advantages of the present application are as follows:

[0029] The clamping component of the present application can initially position the fixing block at the C-shaped groove through the movable bracket supported by the metal elastic sheet, and then use the buckle support to further support the bent movable bracket and the fixing block, so as to reliably lock the clamping component and the C-shaped groove, meet the assembly requirements of large-weight devices, and have better seismic resistance. In addition, the overall structure is simple. When using this clamping component to assemble the device, special tools are required to complete the disassembly and assembly of the device, and the operation is simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Some specific embodiments of the present invention will be described in detail hereinafter with reference to the accompanying drawings in an exemplary and non-limiting manner. The same reference numerals in the drawings denote the same or similar components or parts. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:

[0031] Figure 1 is a schematic structural diagram of a clamping component according to an embodiment of the present invention;

[0032] Figure 2 is a schematic structural diagram of the first assembly step of the clamping component according to an embodiment of the present invention;

[0033] Figure 3 is a schematic structural diagram of the second assembly step of the clamping component according to an embodiment of the present invention;

[0034] Figure 4 It is a schematic structural diagram of step 3 of the assembly of the snap connection component according to an embodiment of the present invention.

[0035] The description of the reference numerals is as follows:

[0036] 1. Snap, 11. Fixed block, 12. Movable bracket, 121. Upper movable bracket, 122. Lower movable bracket, 123. Rotating shaft, 13. Auxiliary support block, 14. Limiting edge, 15. Insertion bar, 16. Card slot, 17. Slot;

[0037] 2. Snap support, 21. U-shaped support block, 22. Longitudinal support of the claw, 23. Transverse support of the claw;

[0038] 3. C-shaped groove, 31. Wall plate of the C-shaped groove;

[0039] 4. Equipment;

[0040] 5. Claw. Detailed implementation manners

[0041] Next, the technical solutions of the present invention will be described clearly and completely in conjunction with the drawings. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the scope of protection of the present invention.

[0042] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0043] In addition, the technical features involved in different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0044] Embodiment 1:

[0045] This embodiment describes a snap connection component for fixedly connecting the equipment 4 and the C-shaped groove 3. As shown, the snap connection component generally can include a snap 1 and a snap support 2, wherein, Figures 1 to 4 shown, the snap connection component generally can include a snap 1 and a snap support 2, wherein,

[0046] The snap-fastener 1 includes a movable bracket 12 and fixing blocks 11 provided at both ends of the movable bracket 12. A clamping groove 16 for clamping the C-shaped groove 3 is formed at the top of the fixing block 11, and the clamping groove 16 is arranged along the length direction of the fixing block 11. The clamping groove 16 can adopt a U-shaped groove that directly clamps the wall plate 31 of the C-shaped groove 3, or can adopt a structure as shown in Figure 1 That is, the clamping groove 16 adopts an L-shaped groove located at the top of the fixing block 11. The L-shaped groove directly clamps the wall plate 31 of the C-shaped groove 3 under the elastic support of the movable bracket 12 at the lower part of the fixing block 11. In order to further prevent the fixing block 11 from being decoupled from the C-shaped groove 3, a limiting edge 14 can also be arranged along the length direction at the outer edge of the clamping groove 16, and the limiting edge 14 clamps the inner side wall of the wall plate 31 of the C-shaped groove 3.

[0047] Specifically, the movable bracket 12 is made of a metal elastic sheet. After assembly, the movable bracket 12 is in a deformed U-shaped state and is clamped between the two fixing blocks 11. Therefore, it can give a top thrust to the fixing block 11 away from the movable bracket 12, so that a large stress is generated between the fixing block 11 and the C-shaped groove 3, and the fixing block 11 is fixed at the C-shaped groove 3.

[0048] The movable bracket 12 can be integrally processed from a sheet metal, and then a crease is transversely formed in the middle thereof, so that a U-shaped arc can be smoothly formed when the movable bracket 12 is bent.

[0049] The movable bracket 12 can also be processed into two symmetrically upper and lower parts, including an upper movable bracket 121 and a lower movable bracket 122. The connection part between the upper movable bracket 121 and the lower movable bracket 122 is connected together by a rotating shaft 123. The upper movable bracket 121 and the lower movable bracket 122 can elastically deform with the rotating shaft 123 as the central axis, and finally a U-shaped arc is smoothly formed.

[0050] The snap-fastener support 2 generally can include a U-shaped support block 21, that is, the outer edge is U-shaped. When the snap-fastener 1 is assembled in the C-shaped groove 3, the movable bracket 12 is bent to form an inward concave U-shaped arc, and the U-shaped support block 21 can be inserted and fixed in the U-shaped arc. At this time, there is an interference fit between the U-shaped support block 21 and the overall U-shaped movable bracket 12.

[0051] The movable bracket 12 can be directly welded and fixed to the upper and lower two fixing blocks 11, or fixed by other methods such as screws and rivets, or other detachable fixing structures can also be adopted. However, when fixing, it is preferably to fix the end of the movable bracket 12 to the middle or the position near the middle of the bottom surface of the fixing block 11. In this way, when the movable bracket 12 is bent during assembly, part of its two ends is in contact with the bottom surface of the fixing block 11. After inserting the snap-fastener support 2, it can push the movable bracket 12 and the fixing block 11, so as to achieve a better fixing and supporting effect.

[0052] In this embodiment, in order to achieve detachable fixation between the movable bracket 12 and the upper and lower fixing blocks 11, both the upper end and the lower end of the movable bracket 12 are provided with T-shaped inserts 15. A T-shaped slot 17 is formed in the bottom of the fixing block 11 along the length direction, and the insert 15 is inserted into the T-shaped slot 17 to fix the movable bracket 12 and the two fixing blocks 11. Such a structure facilitates the replacement of the movable bracket 12, which is beneficial for maintenance and replacement. Moreover, the movable bracket 12 and the fixing blocks 11 can be transported separately and assembled on-site, thus facilitating transportation and preventing damage and loss during transportation.

[0053] In order to further increase the pushing force between the buckle support 2 and the fixing block 11, the clamping assembly further includes two auxiliary support blocks 13. A through groove is provided in the movable bracket 12, and the two auxiliary support blocks 13 are respectively fixed in the through groove by pins. The auxiliary support blocks 13 are arranged at the upper and lower ends of the through groove. When the buckle 1 is assembled in the C-shaped groove 3, the auxiliary support blocks 13 are located below the fixing block 11. The thickness of the auxiliary support block 13 is slightly greater than the thickness of the movable bracket 12, and the auxiliary support block 13 is preferably made of a flexible cushion block (such as rubber, silica gel, etc.). When the buckle 1 is assembled in the C-shaped groove 3, the U-shaped support block 21 is clamped between the upper and lower auxiliary support blocks 13, and the fit between the U-shaped support block 21 and the auxiliary support block 13 is a transitional fit.

[0054] Regarding the connection between the device 4 and the clamping assembly, the device 4 or the connecting plate of the device 4 can be directly fixedly connected to the fixing block 11, such as by welding or screw fastening. The device 4 or the connecting plate of the device 4 can also be fixedly connected to the fixing block 11 through the claw 5. The claw 5 and the fixing block 11 can be welded or screwed, or a plug-in structure as shown in Figure 1 can be used to insert the claw 5 into the slot formed in the fixing block 11. A card slot 16 or a threaded hole for docking and fixing the device 4 is provided on the claw 5. The device 4 or the connecting plate of the device 4 is directly clamped in the card slot 16, or a long circular hole is provided at the device 4, and the device 4 and the claw 5 are fixed by passing a screw through.

[0055] In this embodiment, a structure for auxiliary support is further provided for the claw 5. The buckle support 2 further includes a cross support block, and the cross support block is fixedly connected to the U-shaped support block 21. The claw 5 abuts against the stepped shoulders on both sides of the cross support block. The structure of the cross support block enables it to have a lateral support 23 and a longitudinal support 22. Two claws 5 are respectively arranged on each fixing block 11. The two claws 5 at the upper fixing block 11 are placed on the lateral support 23, and the lateral support 23 is clamped between the upper and lower claws 5, while the longitudinal support 22 is clamped between the two claws 5 of each fixing block 11. Correspondingly, the height of the lateral support 23 is equal to the distance between the upper and lower two claws 5, and the length of the longitudinal support 22 is equal to the distance between the left and right two claws 5 at the fixing block 11.

[0056] Embodiment 2:

[0057] This embodiment provides a method for a clamping assembly to clamp the C-shaped groove 3 and the device 4. Among them, the structure of the clamping assembly is as described in the embodiment, and it includes the following operation steps:

[0058] Step 1: Insert and fix the buckle 1;

[0059] As Figure 2 shown, relatively pinch the two fixing blocks 11, compress the movable bracket 12, and then insert the movable bracket 12 into the C-shaped groove 3. By allowing the movable bracket 12 to deform around the axis, the card slot 16 at the end of the fixing block 11 can be avoided from the end wall plate 31 of the C-shaped groove 3;

[0060] Step 2: Fix the device 4;

[0061] As Figure 3 shown, release the two fixing blocks 11 to make the movable bracket 12 open. The card slots 16 of the two fixing blocks 11 are clamped to the wall plate 31 of the C-shaped groove 3. Assemble the claws 5 on the fixing blocks 11, and fixedly connect the device 4 to the claws 5;

[0062] Step 3: Insert the buckle support 2;

[0063] As Figure 4 shown, insert the U-shaped support block 21 of the buckle support 2 between the movable brackets 12 that have been bent into a U shape. At the same time, the U-shaped support block 21 is attached to the auxiliary support block 13 and pushes the auxiliary support block 13 towards the direction of the two fixing blocks 11. Furthermore, the auxiliary support block 13 is attached to and pushes the fixing block 11 to lock the fixing block 11 and the C-shaped groove. The buckle support 2 is attached to the auxiliary support block 13. The outside of the auxiliary support block 13 is attached to the fixing block 11 and applies a support thrust on the fixing block 11, increasing the support force at the end of the fixing block 11 and the wall plate 31 of the C-shaped groove 3, and realizing the clamping and fixing of the clamping assembly in this embodiment.

[0064] In summary, the snap-in component of the present application can initially position the fixed block 11 at the C-shaped groove 3 through the movable bracket 12 supported by the metal elastic sheet, and then use the snap support 2 to further support the bent movable bracket 12 and the fixed block 11, thereby reliably locking the snap-in component and the C-shaped groove 3, meeting the assembly requirements of the large-weight device 4, and having a better anti-seismic effect. In addition, the overall structure is simple. When using this snap-in component to assemble the device 4, a special tool can be used to complete the disassembly and assembly of the device 4, and the operation is simple and convenient.

[0065] The above embodiments are only used to illustrate the technical concept and features of the present invention, and the purpose is to enable those who are familiar with this technology to understand the content of the present invention and implement it accordingly. It cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit and essence of the present invention should be covered within the protection scope of the present invention.

Claims

1. A clamping component for fixedly connecting a device to a C-shaped groove, characterized in that It includes a buckle and a buckle support. Among them, the buckle includes a movable bracket and fixed blocks arranged at both ends of the movable bracket. A clamping groove for clamping a C-shaped groove is opened at the top of the fixed block, and the movable bracket is made of a metal elastic sheet; the buckle support includes a U-shaped support block. When the buckle is assembled in the C-shaped groove, the movable bracket is bent to form a concave U-shaped arc, and the U-shaped support block is inserted and fixed in the U-shaped arc. At this time, there is an interference fit between the U-shaped support block and the overall U-shaped movable bracket.

2. The snap - fit component according to claim 1, characterized in that, The movable bracket is divided into two symmetrically arranged upper and lower parts, and the connection part between the two parts is connected together by a rotating shaft.

3. The snap-fit component according to claim 1, wherein, Both the upper end and the lower end of the movable bracket have T-shaped inserts. A T-shaped slot is opened along the length direction at the bottom of the fixed block, and the inserts are inserted into the T-shaped slot to fix the movable bracket and the two fixed blocks.

4. The snap - fit component according to any one of claims 1 to 3, characterized in that, It also includes two auxiliary support blocks. A through groove is arranged in the movable bracket, and the two auxiliary support blocks are respectively fixed in the through groove by pin shafts. The auxiliary support blocks are arranged at the upper and lower ends of the through groove. When the buckle is assembled in the C-shaped groove, the auxiliary support blocks are located below the fixed block.

5. The snap-fit component according to claim 4, characterized in that, When the buckle is assembled in the C-shaped groove, the U-shaped support block is clamped between the upper and lower auxiliary support blocks, and there is an interference fit between the U-shaped support block and the auxiliary support blocks.

6. The snap - fit component according to claim 1, characterized in that, The device is fixedly connected to the fixed block through a claw, or the device is directly fixedly connected to the fixed block.

7. The snap-fit component according to claim 6, characterized in that The buckle support also includes a cross support block. The cross support block is fixedly connected to the U-shaped support block, and the claw leans against the stepped shoulders on both sides of the cross support block.

8. The snap-fit component according to claim 6 or 7, characterized in that, A clamping groove or a threaded hole for docking and fixing the device is opened on the claw.

9. The snap-fit component according to claim 1, characterized in that, A limiting edge is arranged along the length direction on the outer edge of the clamping groove, and the limiting edge is clamped against the inner side wall of the C-shaped groove.

10. A method for clamping and assembling a clamping component clamping and assembling device described in claim 4 or 5 with a C-shaped groove, characterized in that, It includes the following operating steps: Step 1: Insert and fix the buckle; Pinch the two fixed blocks relatively, compress the movable bracket, and then extend the movable bracket into the C-shaped groove; Step 2: Fix the device; Release the two fixed blocks to make the movable bracket open, and the clamping grooves of the two fixed blocks are clamped against the wall plate of the C-shaped groove. Assemble the claw on the fixed block, and fixedly connect the device to the claw; Step 3: Insert the buckle support; Insert the U-shaped support block of the buckle support between the movable brackets that have been bent into a U shape. At the same time, the U-shaped support block is attached to the auxiliary support blocks and pushes the auxiliary support blocks towards the direction of the two fixed blocks. Furthermore, the auxiliary support blocks are attached to and push the fixed block to lock the fixed block and the C-shaped groove.

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