High-load coupler for cold acid line
By designing a high-load coupling and adjusting the number and spacing of multiple connecting components, the problems of easy wear and short life of traditional couplings in cold acid line processing are solved, achieving higher load-bearing capacity and stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 阳江宏旺实业有限公司
- Filing Date
- 2025-05-30
- Publication Date
- 2026-04-28
AI Technical Summary
Traditional couplings cannot adapt to load changes under different working conditions during cold acid line processing, resulting in easy wear and short service life.
Design a high-load coupling including a first bushing, a second bushing, and connecting components. By adjusting the number and spacing of the connecting components, the load force of the coupling can be changed, thereby improving stability and service life.
It improves the load-bearing capacity and service life of the coupling, enhances the stability of rotation, and avoids damage to the connecting parts caused by instantaneous high load.
Smart Images

Figure CN224174442U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of audio technology, and in particular to a vibration damping structure for a super subwoofer speaker used in a KTV all-in-one machine. Background Technology
[0002] Couplings are commonly used components in mechanical transmissions, connecting two shafts and transmitting torque. During the cold acid processing of stainless steel strips, the steel strip needs to run smoothly under tension; therefore, the couplings used must have high load capacity, high elasticity, and high vibration damping performance. However, traditional couplings cannot adapt to load variations under different working conditions, leading to problems such as easy wear and short lifespan. Therefore, it is necessary to design a coupling that can meet the requirements of cold acid processing lines. Utility Model Content
[0003] In view of the above, it is necessary for this utility model to provide a coupling with strong load-bearing capacity, high shock absorption performance and long service life.
[0004] The technical solution of this utility model is as follows:
[0005] A high-load coupling for cold acid lines includes a first bushing, a second bushing, and a connecting assembly. The corresponding ends of the first and second bushings abut against each other. The connecting assembly is installed between the first and second bushings. The connecting assembly includes a first bayonet group, a second bayonet group, and a connector. The first bayonet group and the second bayonet group are respectively installed at the abutting ends of the first and second bushings. The two ends of the connector are respectively inserted into the first bayonet group and the second bayonet group.
[0006] Furthermore, the first bushing includes a plurality of first mounting grooves, which are evenly distributed along the outer circumferential surface of the first bushing, and each first mounting groove is connected to one end face of the first bushing.
[0007] Furthermore, the first mounting groove is provided with two first slots at both ends along the axial direction, and the four first slots are respectively located on the two opposite walls of the first mounting groove. Each first slot is connected to the first mounting groove so as to be secured by the first locking assembly.
[0008] Furthermore, the second bushing has a plurality of second mounting slots for mounting the second bayonet assembly at one end near the first mounting slot. Each second mounting slot is arranged along the axial direction of the second bushing, and one end of each slot is connected to one end face of the second bushing and corresponds to each first mounting slot.
[0009] Furthermore, each of the second mounting slots has two second slots at both ends along the axial direction, and the four second slots are located on opposite walls of the second mounting slot and communicate with the second mounting slot for the second bayonet assembly to secure it.
[0010] Furthermore, the inner surfaces of both the first and second mounting slots are roughened to increase the friction after the first and second bayonet assemblies are secured.
[0011] Furthermore, the first bayonet assembly includes two first clamping plates that are installed opposite each other in the first mounting groove. Each first clamping plate has two first locking blocks protruding from one side, and the first locking blocks are embedded in the corresponding first slot.
[0012] Furthermore, the second bayonet assembly includes two second clamping plates installed in the second mounting groove, and a second locking block protruding from one side of the second clamping plates, with the two second clamping plates installed opposite each other in the second mounting groove.
[0013] Furthermore, the first locking block and the second locking block are respectively provided with a first inclined surface and a second inclined surface at their respective ends that are close to each other, so as to provide space for the elastic deformation of the connector.
[0014] Furthermore, the surface of the connecting block is processed with features such as corrugations or grooves to increase the friction when the connecting block abuts against the first and second clamping plates.
[0015] Compared to existing technologies, this utility model provides a high-load coupling design for cold acid lines. The first bushing drives the second bushing to rotate synchronously through multiple connecting components, facilitating the adjustment of the number of connecting components according to different working conditions, thereby changing the load force of the coupling. The elastic deformation of the connecting parts can be changed by adjusting the distance between the first and second bushings, improving the stability and service life of the coupling. This prevents the instantaneous high load generated during motor startup from exceeding the upper limit of the connecting parts, thus avoiding damage to the connecting parts. The high-load coupling provided by this utility model effectively improves the load-bearing capacity of the coupling, increases the stability during rotation, and extends its service life. Attached Figure Description
[0016] Figure 1 This is a perspective view of a high-load coupling for a cold acid line, according to a preferred embodiment of the present invention.
[0017] Figure 2 An exploded view of the structure of a high-load coupling;
[0018] Figure 3 This is a front view of the connection structure.
[0019] The annotations in the attached figures are explained as follows:
[0020] 1. First bushing; 11. First mounting groove; 12. First slot; 2. Second bushing; 21. Second mounting groove; 22. Second slot; 3. Connecting assembly; 31. First bayonet group; 311. First clamping plate; 312. First locking block; 32. Second bayonet group; 321. Second clamping plate; 322. Second locking block; 33. Connector. Detailed Implementation
[0021] 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. In the absence of conflict, the embodiments and features in the embodiments of this application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and embodiments.
[0022] Please see Figures 1-3 A high-load coupling for cold acid lines includes a first bushing 1, a second bushing 2, and multiple connecting components 3. The first bushing 1 is sleeved on the output shaft end of a motor, and one end of the first bushing 1 is flush with or extends beyond the end face of the motor output shaft for connecting the second bushing 2. The second bushing 2 axially abuts against the center of the first bushing 1. Multiple connecting components 3 are installed at equal intervals along the outer periphery of the abutting ends of the first bushing 1 and the second bushing 2. Each connecting component 3 includes a first bayonet group 31, a second bayonet group 32, and a connector 33. The first bayonet group 31 is installed on the end face where the first bushing 1 and the second bushing 2 abut against each other. The second bayonet group 32 is installed on the end face of the second bushing 2 and abuts against the first bayonet group 31. The two ends of the connector 33 are respectively fixed within the first bayonet group 31 and the second bayonet group 32.
[0023] Specifically, the first bushing 1 has a plurality of first mounting grooves 11 for mounting the first bayonet assembly 31. The plurality of first mounting grooves 11 are evenly distributed along the outer circumference of the first bushing 1. Each first mounting groove 11 is arranged axially along the first bushing 1, and one end of each groove is connected to one end face of the first bushing 1. Furthermore, each of the first mounting grooves 11 has two first locking slots 12 at both ends along the axial direction. The four first locking slots 12 are located on the two opposite walls at the ends of the first mounting grooves 11, and each first locking slot 12 is connected to the first mounting groove 11 for securing the first bayonet assembly 31.
[0024] The second bushing 2 has several second mounting grooves 21 near the end of the first bushing 1 for mounting the second bayonet assembly 32. Each second mounting groove 21 is axially arranged along the second bushing 2, and one end of it is connected to one end face of the second bushing 2. Each second mounting groove 21 corresponds to each first mounting groove 11, and each second mounting groove 21 has two second locking slots 22 at both ends along the axial direction. The four second locking slots 12 are located on opposite walls of the second mounting groove 21 and are connected to the second mounting groove 21 for locking the second bayonet assembly 32. Furthermore, the inner surfaces of the first mounting groove 11 and the second mounting groove 21 are both roughened to increase the friction after the first bayonet assembly 31 and the second bayonet assembly 32 are locked together, preventing them from falling off due to centrifugal force during rotation.
[0025] See Figure 2 and Figure 3 The first clamping assembly 31 includes two first clamping plates 311 mounted opposite each other within the first mounting groove 11. Each first clamping plate 311 has two first locking blocks 312 protruding from one side, and a first inclined surface formed at the end near the end face of the first bushing 1 on the other side, so that the two first clamping plates 311 are open when mounted opposite each other. The two first clamping plates 311 are inserted into the first mounting groove 11 and abut against both sides of the first mounting groove 11, respectively. The two first locking blocks 312 on each first clamping plate 311 are embedded and fixed within two first locking slots 12 on the same side of the first mounting groove 11. Furthermore, the outer surface of the first clamping plates 311 is processed with corrugations or grooves to form a rough surface, increasing friction.
[0026] The second bayonet assembly 32 has the same structure as the first bayonet assembly 31, including two second clamping plates 321 installed in the second mounting groove 21, and a second locking block 322 protruding from one side of the second clamping plate 321. The two second clamping plates 321 are installed opposite each other in the second mounting groove 21. Each second clamping plate 321 has a second inclined surface at one end near the first bayonet assembly 31, corresponding to the first inclined surface. The two second clamping plates 321 abut against the two side walls of the second mounting groove 21, and the second locking block 322 on each second clamping plate 321 is embedded in two second locking slots 22 on the same side of the second mounting groove 21, so that the second bayonet assembly 32 is fixed in the second mounting groove 21.
[0027] like Figure 2 and Figure 3As shown, the first bayonet group 31 and the second bayonet group 32 are interconnected by a connecting block 33. The connecting block 33 is made of high-strength spring steel. One end of the connecting block 33 is inserted into the first bayonet group 31 and clamped between the two first clamping plates 311, pressing the two first clamping plates 311 away from each other, so that the first clamping plates 311 abut against the inner sidewall of the first mounting groove 11. The other end of the connecting block 33 is inserted into the second bayonet group 32 and clamped between the two second clamping plates 321, pressing the two second clamping plates 321 away from each other, so that the second clamping plates 321 abut against the inner sidewall of the second mounting groove 21. Furthermore, the first inclined surface of the first clamping plate 311 and the second inclined surface of the second clamping plate 321 correspond to the middle section of the connecting block 33. The first and second inclined surfaces are located on both sides of the connecting block 33 and form a gap between them and the surface of the connecting block 33, so that the connecting part 33 can have a large bending radius when it elastically deforms, and avoid the shearing force of the first clamping plates 311 and the second clamping plates 321 from cutting the connecting block 33 under heavy load. Furthermore, the surface of the connecting block 33 is processed with features such as corrugations or grooves, so that the connecting block 33 has a rough surface that contacts the first clamping plate 311 and the second clamping plate 321, increasing the friction when they are pressed together.
[0028] When using this high-load coupling, the first bushing 1 drives the second bushing 2 to rotate synchronously through multiple connecting components 3. This allows for easy adjustment of the number of connecting components 3 according to different working conditions, thereby changing the load capacity of the coupling. The elastic deformation of the connecting piece 33 can be altered by adjusting the spacing between the first bushing 1 and the second bushing 2, improving the stability and service life of the coupling and preventing damage to the connecting piece 33 due to the instantaneous high load generated during motor startup exceeding its bearing capacity. The high-load coupling used in cold acid lines has a simple structure, with each part replaceable individually for easy maintenance. Furthermore, the load capacity and stability can be adjusted according to requirements, effectively improving service life and increasing the coupling's load-bearing capacity.
[0029] 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 using the content of this utility model specification, 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 high-load coupling for a cold acid line, comprising a first bushing (1), a second bushing (2), and a connecting assembly (3), wherein the corresponding ends of the first bushing (1) and the second bushing (2) abut against each other, and the connecting assembly (3) is installed between the first bushing (1) and the second bushing (2), characterized in that: The connecting component (3) includes a first bayonet group (31), a second bayonet group (32), and a connector (33). The first bayonet group (31) and the second bayonet group (32) are respectively installed at the ends of the first bushing (1) and the second bushing (2) that abut against each other. The two ends of the connector (33) are respectively inserted into the first bayonet group (31) and the second bayonet group (32).
2. The high-load coupling for cold acid lines according to claim 1, characterized in that: The first bushing (1) includes a plurality of first mounting grooves (11), which are evenly distributed along the outer circumferential surface of the first bushing (1), and each first mounting groove (11) is connected to one end face of the first bushing (1).
3. The high-load coupling for cold acid lines according to claim 2, characterized in that: The first mounting groove (11) has two first slots (12) at both ends along the axial direction. The four first slots (12) are located on opposite walls of the first mounting groove (11). Each first slot (12) is connected to the first mounting groove (11) so that the first bayonet group (31) can be locked in place.
4. The high-load coupling for cold acid lines according to claim 3, characterized in that: The second bushing (2) has a plurality of second mounting slots (21) for mounting the second bayonet group (32) at one end near the first mounting slot (11). Each second mounting slot (21) is arranged along the axial direction of the second bushing (2), and one end of it is connected to one end face of the second bushing (2) and corresponds to each first mounting slot (11).
5. The high-load coupling for cold acid lines according to claim 4, characterized in that: Each of the second mounting slots (21) has two second slots (22) at both ends along the axial direction. The four second slots (22) are located on opposite sides of the second mounting slot (21) and communicate with the second mounting slot (21) for the second bayonet group (32) to be secured.
6. The high-load coupling for cold acid lines according to claim 5, characterized in that: The inner surfaces of the first mounting groove (11) and the second mounting groove (21) are both rough surfaces to increase the friction after the first bayonet group (31) and the second bayonet group (32) are locked.
7. The high-load coupling for cold acid lines according to claim 3, characterized in that: The first bayonet group (31) includes two first clamping plates (311) installed opposite each other in the first mounting groove (11). Each first clamping plate (311) has two first locking blocks (312) protruding from one side, and the first locking blocks (312) are embedded in the corresponding first slot (12).
8. The high-load coupling for cold acid lines according to claim 7, characterized in that: The second bayonet assembly (32) includes two second clamping plates (321) installed in the second mounting groove (21) and a second locking block (322) protruding from one side of the second clamping plate (321). The two second clamping plates (321) are installed opposite each other in the second mounting groove (21).
9. The high-load coupling for cold acid lines according to claim 8, characterized in that: The first locking block (312) and the second locking block (322) are respectively provided with a first inclined surface and a second inclined surface at their respective ends that are close to each other, so as to provide space for the elastic deformation of the connector (33).
10. The high-load coupling for cold acid lines according to claim 9, characterized in that: The surface of the connector (33) is provided with corrugations or grooves to increase the friction when the connector (33) abuts against the first clamping plate (311) and the second clamping plate (321).