Chain capable of assisting assembly

Abstract

The utility model relates to the technical field of chain assembly, and discloses an auxiliary assembly chain which comprises a shell, an inner cavity of the shell is connected with two sliding blocks in a sliding mode, rectangular columns are fixed to the top ends of the two sliding blocks, inner cavities of the rectangular columns are connected with limiting assemblies in a sliding mode, and the limiting assemblies are used for clamping the rectangular columns in chain openings. The limiting assembly comprises two racks, the two racks are slidably connected to an inner cavity of the rectangular column, extrusion blocks are fixed to one ends of the two racks, the portions, on the opposite faces of the two racks, of the inner cavity of the rectangular column are rotationally connected with gears, first rotary knobs are fixed to one ends of the gears, and the gears are connected with the two racks in an engaged mode. After the rectangular extrusion block is inserted into the chain opening, the rotary knob is rotated, the rotary knob drives the gear to rotate, the gear rotates to drive the two racks which move relative to each other, finally, the extrusion block extends out, the rectangular column is clamped in the chain opening, fixing of the chain is completed, and a user does not need to support the fixing base with hands to conduct strenuous screw rotation.

Description

Technical Field

[0001] This utility model relates to the field of chain assembly technology, specifically to a chain that can be used for assembly assistance. Background Technology

[0002] Chains are a common mechanical transmission component, widely used in various mechanical equipment such as bicycles, motorcycles, and industrial production lines. In current chain assembly processes, it is usually necessary to connect the two ends of the chain to form a closed loop structure.

[0003] Chinese Patent Publication No. (CN207534745U) discloses a chain assembly fixture, including a fixed base, a fixed positioning post fixed at one end of the fixed base, and a sliding positioning post parallel to the fixed positioning post. The sliding positioning post can slide directly or indirectly on the fixed base. The end of the fixed positioning post is provided with a first post head that can be inserted into a chain engagement hole, and the end of the sliding positioning post is provided with a second post head that can be inserted into a chain engagement hole.

[0004] The aforementioned comparative documents show that the main method of assembling the chain is to put the chain on the fixed positioning post and the sliding positioning post, and then rotate the screw to adjust the movable block by using a wrench or screwdriver to gradually tighten the chain, and finally lock it with the chain buckle. However, this method has the following problems: the user needs to hold the fixed seat by hand to rotate the screw, which is more laborious and affects the assembly efficiency.

[0005] In view of this, the present invention solves the above-mentioned technical problems by proposing a chain that can assist in assembly. Summary of the Invention

[0006] To address the shortcomings of the aforementioned background technology, this utility model provides a technical solution for an assembly-assisted chain. A limiting component is designed so that when the rectangular pressing block is inserted into the chain opening, the user only needs to rotate the knob. The knob drives the gear to rotate, and the rotation of the gear drives two racks that move relative to each other, ultimately causing the pressing block to extend and lock the rectangular column into the chain opening, thus fixing the chain. This eliminates the need for the user to manually support the fixing base and rotate the screw with effort.

[0007] This utility model provides the following technical solution: a chain that can be assembled, including a housing;

[0008] The inner cavity of the housing has two sliding blocks slidably connected, and the top of each of the two sliding blocks is fixed with a rectangular post. The inner cavity of the rectangular post is slidably connected with a limit component to lock the rectangular post in the chain opening.

[0009] The limiting component includes two racks, which are slidably connected to the inner cavity of a rectangular column. Each rack has a pressing block fixed to one end. A gear is rotatably connected to the inner cavity of the rectangular column on the opposite side of the two racks. A first knob is fixed to one end of the gear. The gear is meshed with the two racks.

[0010] As a preferred embodiment of this utility model, the housing is rotatably connected to a bidirectional screw, and the inner cavities of the two sliding blocks are threadedly connected to the surface of the bidirectional screw.

[0011] As a preferred technical solution of this utility model, a second knob is fixed at one end of the bidirectional screw, and a first pin hole can be provided at one end of the second knob and one side of the housing. The first pin holes are distributed in a ring array.

[0012] As a preferred technical solution of this utility model, a second pin hole is provided at one end of the first knob and at the top of the rectangular column, and the second pin holes are distributed in a ring array.

[0013] As a preferred technical solution of this utility model, both the first knob and the second knob have anti-slip textures on their surfaces.

[0014] As a preferred embodiment of this utility model, a rectangular groove is formed on the surface of the shell.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] In existing technologies, assembling a chain requires fitting the chain onto fixed and sliding positioning posts, and then adjusting the movable block by rotating the screw with a wrench or screwdriver to gradually tension the chain before finally locking it with a chain buckle. This process is not only cumbersome but also requires the user to manually rotate the screw while holding the fixed base, which is laborious and inefficient. This invention designs a limiting component. After the rectangular pressing block is inserted into the chain opening, the user only needs to rotate a knob. The knob drives a gear to rotate, which in turn drives two racks that move relative to each other, ultimately causing the pressing block to extend and lock the rectangular post into the chain opening, thus securing the chain. This design simplifies the operation, reduces the difficulty of operation, and makes the assembly process more convenient and efficient. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is the front view of the present invention;

[0019] Figure 3 This is a cross-sectional view of the present invention;

[0020] Figure 4 This is a schematic diagram of the gear structure of this utility model.

[0021] In the figure: 1. Housing; 2. Sliding block; 201. Rectangular column; 3. Rack; 301. Extrusion block; 302. Gear; 303. First knob; 4. Bidirectional screw; 5. Second knob; 501. First pin hole; 6. Second pin hole; 7. Rectangular groove. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example 1

[0023] Please see Figure 1-4As shown, an assembly-assisted chain includes a housing 1. Two sliding blocks 2 are slidably connected to the inner cavity of the housing 1. A rectangular post 201 is fixed to the top of each sliding block 2. A limiting component is slidably connected to the inner cavity of the rectangular post 201 to lock the rectangular post 201 within the chain opening. The limiting component includes two racks 3, which are slidably connected to the inner cavity of the rectangular post 201. A pressing block 301 is fixed to one end of each rack 3. Gears 302 are rotatably connected to the inner cavities of the rectangular post 201 on opposite sides of the two racks 3. A first knob 303 is fixed to one end of gear 302. Gear 302 is meshed with two racks 3. A bidirectional screw 4 is rotatably connected inside the housing 1. By setting the bidirectional screw 4, the rotation of the bidirectional screw 4 can drive two sliding blocks 2 to move relative to each other or move in opposite directions. The inner cavities of the two sliding blocks 2 are threadedly connected to the surface of the bidirectional screw 4. A second knob 5 is fixed to one end of the bidirectional screw 4. By setting the second knob 5, rotating the second knob 5 can drive the bidirectional screw 4 to rotate. One end of the first knob 303 and one side of the housing 1 can both be provided with a first pin hole 501. By providing the first pin hole 501, after inserting a pin into the inner cavity of the first pin hole 501, the second knob 5 can be prevented from rotating. The first pin holes 501 are arranged in a circular array. One end of the first knob 303 and the top of the rectangular post 201 are both provided with a second pin hole 6. By providing the second pin hole 6, when the first knob 303 is rotated to the correct position, the user can use a pin to insert into the inner cavity of the second pin hole 6 to operate the first knob 303. The first knob 303 is limited to prevent it from rotating. The second pin holes 6 are arranged in a ring array. The surfaces of the first knob 303 and the second knob 5 are provided with anti-slip textures. By providing anti-slip textures on the surfaces of the first knob 303 and the second knob 5, the anti-slip textures can provide an anti-slip effect when the user rotates the first knob 303 or the second knob 5. The surface of the housing 1 is provided with a rectangular groove 7. By providing the rectangular groove 7, the user can place his hand in the inner cavity of the rectangular groove 7, which makes it easy to pick up and carry the housing 1.

[0024] In use, first rotate the second knob 5, causing the double-headed screw 4 to rotate. The rotation of the double-headed screw 4 causes the two sliding blocks 2 to move relative to each other, thus adjusting the distance between the two rectangular posts 201 to accommodate the chain opening. After the distance between the two rectangular posts 201 is adjusted, insert the two rectangular posts 201 into the chain opening. Then rotate the first knob 303, causing the gear 302 to rotate. The rotation of the gear 302 causes the two racks 3 to move in opposite directions. The relative movement of the two racks 3 causes the two pressing blocks 301 to move in opposite directions, thus adjusting the distance between the two pressing blocks. 301 presses one side of the chain opening and generates a large frictional force, causing the rectangular post 201 to lock in the chain opening. Then, a pin is inserted into the inner cavity of the second pin hole 6 to limit the first knob 303 and prevent it from rotating back. Finally, the second knob 5 is turned again, causing the double-headed screw 4 to rotate. The rotation of the double-headed screw 4 can drive the two sliding blocks 2 to move relative to each other, so that the chain gradually tightens and the two ends of the opening gradually close. After the two ends of the chain are closed, a pin is inserted into the inner cavity of the first pin hole 501 to prevent the second knob 5 from rotating back. Finally, a pin is used to lock the chain interface.

[0025] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Additionally, in the accompanying drawings of this utility model, the fill patterns are merely for distinguishing layers and do not constitute any other limitation.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A chain that can be assembled, comprising: Shell (1); The feature is that: the inner cavity of the housing (1) is slidably connected to two sliding blocks (2), and the top of each of the two sliding blocks (2) is fixed with a rectangular column (201). The inner cavity of the rectangular column (201) is slidably connected to a limit assembly for locking the rectangular column (201) in the chain opening. The limiting component includes two racks (3), which are slidably connected to the inner cavity of the rectangular column (201). One end of each rack (3) is fixed with a pressing block (301). The inner cavity of the rectangular column (201) on the opposite side of the two racks (3) is rotatably connected with a gear (302). One end of the gear (302) is fixed with a first knob (303). The gear (302) and the two racks (3) are meshed together.

2. The chain that can be assisted in assembly according to claim 1, characterized in that: The housing (1) is rotatably connected to a bidirectional screw (4), and the inner cavities of the two sliding blocks (2) are threadedly connected to the surface of the bidirectional screw (4).

3. The chain that can be assisted in assembly according to claim 2, characterized in that: One end of the bidirectional screw (4) is fixed with a second knob (5). One end of the second knob (5) and one side of the housing (1) can be provided with a first pin hole (501). The first pin holes (501) are arranged in a ring array.

4. The chain that can be assisted in assembly according to claim 1, characterized in that: Both the first knob (303) and the top of the rectangular column (201) are provided with a second pin hole (6), and the second pin holes (6) are arranged in a ring array.

5. The chain that can be assisted in assembly according to claim 1, characterized in that: The surfaces of the first knob (303) and the second knob (5) are both provided with anti-slip texture.

6. The chain that can be assisted in assembly according to claim 1, characterized in that: The surface of the housing (1) is provided with a rectangular groove (7).

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