A kind of fixed structure of flat spring

By using a snap-fit ​​structure between the card block and the card slot, and a magnetic connection, the problem of easy loosening of the connection between the spring and the tape is solved, achieving a stable connection under vibration and impact, and ensuring the long-term stable operation of the equipment.

CN224479221UActive Publication Date: 2026-07-10JINGZHOU TIANYOU TEXTILE EQUIP CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JINGZHOU TIANYOU TEXTILE EQUIP CO LTD
Filing Date
2025-08-20
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

The existing spring and tape connection method is prone to loosening due to vibration and impact, which can lead to detachment and affect the stability and lifespan of the equipment.

Method used

It adopts a snap-fit ​​structure of card blocks and card slots, combined with magnetic connection and elastic pad design. Through the matching inclined surface design of trapezoidal card blocks and card slots, a stable connection between spring and tape is achieved, enhancing connection stability.

Benefits of technology

Maintaining a stable connection under extreme operating conditions prevents functional failures or safety accidents caused by loosening, thus extending the service life of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the field of spring assembly technology and discloses an anti-loosening fixing structure for a braided spring, comprising a spring body: a support rod is fixedly connected to the bottom of the spring body, and spring sheets are fixedly connected to both sides of the support rod; a braided body is installed between the support rod and the spring sheets; and a locking block is fixedly connected to the side of the spring sheet near the support rod. This anti-loosening fixing structure for the braided spring, by pulling the spring sheet, positions the braided body between the support rod and the spring sheet; subsequently, releasing the movement of the spring sheet allows it to return to its original position, causing the locking block to enter the interior of a square groove, and then into the groove itself, thereby connecting the spring body and the braided body. This design ensures stable connection between the braided body and the spring body even under extreme conditions such as high-frequency vibration and temperature fluctuations, preventing functional failure or safety accidents caused by loosening and extending the overall service life of the equipment.
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Description

Technical Field

[0001] This utility model relates to the field of spring assembly technology, and in particular to an anti-loosening fixing structure for a braided spring. Background Technology

[0002] A tape spring is a mechanical part that achieves a specific function through elastic deformation. It usually refers to a spring assembly used in conjunction with tape. Its core is to utilize the elastic characteristics of the spring and the structural constraints of the tape to achieve functions such as energy storage, buffering, connection or control.

[0003] Regarding the aforementioned and existing related technologies, the inventors believe that the following drawbacks often exist: Most existing connection methods between springs and braided tape rely on adhesives for bonding or simple hook-and-loop fastening. However, in practical applications, these connection methods have certain limitations. Especially during equipment operation, when the spring and braided tape are subjected to vibration, impact, or long-term load, this connection method is prone to loosening. Over time, the loosening may worsen, eventually leading to the spring and braided tape detaching. Summary of the Invention

[0004] The technical problem to be solved by this utility model is that the existing technology has the disadvantage that the connection between the spring and the tape is prone to loosening. To this end, we propose a tape spring anti-loosening fixing structure.

[0005] To achieve the above objectives, this application adopts the following technical solution: a braided spring anti-loosening fixing structure, comprising a spring body: a support rod is fixedly connected to the bottom of the spring body, spring sheets are fixedly connected to both sides of the support rod, a braided body is installed between the support rod and the spring sheets, a locking block is fixedly connected to the side of the spring sheet near the support rod, a square groove is formed on the surface of the braided body, a locking groove is formed on both sides of the support rod, and the surface of the locking block engages with the square groove and the inside of the locking groove.

[0006] Preferably, the card block is trapezoidal, and the card slot is trapezoidal to fit the card block.

[0007] Preferably, an elastic pad is provided at the top of the inner wall of the reed.

[0008] Preferably, the wedge-shaped end of the card block is provided with a ° guide slope, and the card slot inlet is provided with a matching slope.

[0009] Preferably, the support rod has a double-sided symmetrical structure, with the springs on both sides simultaneously engaging in the slots opened on both sides of the support rod.

[0010] Preferably, the side of the spring closest to the support rod, the inside of the slot, and the surface of the block are all provided with wavy patterns.

[0011] Preferably, magnetic particles are embedded inside the card slot, and a magnetic block is fixedly connected to one end of the card block near the card slot.

[0012] The technical effects and advantages of this utility model are as follows:

[0013] In this invention, by pulling the spring, the tape body is positioned between the support rod and the spring. Then, the movement of the spring is released, causing the spring to return to its original position. This allows the locking block to enter the interior of the square groove, and then into the interior of the locking groove, thereby connecting the spring body and the tape body. This design ensures that even under extreme conditions such as high-frequency vibration and temperature fluctuations, the tape body and the spring body can maintain a stable connection, preventing functional failure or safety accidents caused by loosening and extending the overall service life of the equipment. Attached Figure Description

[0014] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts:

[0015] Figure 1 This is a schematic diagram of the main structure of the spring body of this utility model;

[0016] Figure 2 This is a schematic diagram of the tape weaving structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the reed structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the inner structure of the reed in this utility model;

[0019] Figure 5 This is a schematic diagram of the card slot structure of this utility model.

[0020] Illustration: 1. Spring body; 2. Support rod; 3. Spring leaf; 4. Braided body; 5. Locking block; 6. Square groove; 7. Locking groove; 8. Elastic pad; 9. Wavy pattern; 10. Magnetic block. Detailed Implementation

[0021] Based on the technical solution of this utility model, without changing the essential spirit of this utility model, those skilled in the art can propose various interchangeable structural methods and implementation methods. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model, and should not be regarded as the entirety of this utility model or as a limitation or restriction of the technical solution of this utility model.

[0022] Reference Figure 1 - Figure 5As shown, this utility model provides a technical solution: an anti-loosening fixing structure for a braided spring, comprising a spring body 1; a support rod 2 is fixedly connected to the bottom of the spring body 1, and spring plates 3 are fixedly connected to both sides of the support rod 2; a braided body 4 is installed between the support rod 2 and the spring plates 3; a locking block 5 is fixedly connected to the side of the spring plate 3 near the support rod 2; a square groove 6 is formed on the surface of the braided body 4; and locking grooves 7 are formed on both sides of the support rod 2. The surface of the locking block 5 engages with the inside of the square groove 6 and the locking groove 7. By pulling the spring plate 3, the braided body 4 is positioned between the support rod 2 and the spring plate 3. Then, releasing the movement of the spring plate 3 resets the spring plate 3, allowing the locking block 5 to enter the inside of the square groove 6 and then the inside of the locking groove 7, thereby connecting the spring body 1 and the braided body 4. This design ensures that even under extreme conditions such as high-frequency vibration and temperature fluctuations, the braided body 4 and the spring body 1 maintain a stable connection, preventing functional failure or safety accidents caused by loosening and extending the overall service life of the equipment.

[0023] Reference Figure 4 and Figure 5 As shown in this embodiment: the fixing block 5 is trapezoidal, and the fixing groove 7 is trapezoidal to match the fixing block 5. With this setting, the fixing block 5 can be gradually compressed and stably locked in the groove 7 when it enters the groove 7, thereby increasing the stability of the connection.

[0024] Reference Figure 3 As shown in this embodiment: an elastic pad 8 is provided on the top of the inner wall of the spring 3. By providing the elastic pad 8, the spring 3 and the tape body 4 can fit more tightly, effectively reducing loosening caused by factors such as vibration.

[0025] Reference Figure 4 and Figure 5 As shown in this embodiment: the wedge-shaped end of the locking block 5 is provided with a 45° guide slope, and the inlet of the slot 7 is provided with a matching slope. With this setting, when the locking block 5 is inserted into the slot 7, its wedge-shaped end can slide smoothly into the slot along the 45° guide slope, and a stable locking can be achieved without excessive force. At the same time, the matching slope design at the inlet of the slot 7 not only further guides the locking block 5 to enter accurately, but also enhances the tightness of the connection and effectively prevents accidental loosening caused by external force. This ingenious design not only improves the assembly efficiency, but also ensures the long-term stability of the connection structure.

[0026] Reference Figure 2As shown in this embodiment, the support rod 2 has a double-sided symmetrical structure. The spring plates 3 on both sides simultaneously engage with the slots 7 opened on both sides of the support rod 2. This design achieves double fixation of the braided spring, greatly enhancing the overall stability. This double-sided symmetrical design not only makes the fixing structure more evenly stressed, effectively avoiding deformation or damage caused by excessive stress on one side, but also makes the installation process simpler and faster, improving work efficiency. At the same time, the simultaneous engagement on both sides further restricts the vertical displacement of the braided spring, forming an anti-torsional lock and ensuring its stable operation under various working conditions.

[0027] Reference Figure 4 As shown in this embodiment: the side of the spring 3 near the support rod 2, the inside of the slot 7 and the surface of the block 5 are all provided with corrugations 9. By setting corrugations 9, not only is the friction of the contact surface increased, which effectively prevents the spring body 1 from slipping slightly during long-term operation, but the stability of the connection is further improved. At the same time, the setting of corrugations 9 also helps to distribute the force and reduce wear caused by excessive local pressure.

[0028] Reference Figure 4 As shown in this embodiment: magnetic particles are embedded inside the card slot 7, and a magnetic block 10 is fixedly connected to one end of the card block 5 near the card slot 7. By setting the magnetic block 10, the magnetic block 10 can be magnetically connected to the inside of the card slot 7. This setting enhances the locking effect through magnetic attraction.

[0029] Working Principle: By pulling the spring 3, the tape body 4 is positioned between the support rod 2 and the spring 3. Then, releasing the spring 3 resets it, allowing the locking block 5 to enter the square groove 6 and then the groove 7, thus connecting the spring body 1 and the tape body 4. This design ensures stable connection between the tape body 4 and the spring body 1 even under extreme conditions such as high-frequency vibration and temperature fluctuations, preventing functional failures or safety accidents caused by loosening and extending the overall equipment lifespan. This design also allows the locking block 5 to gradually compress and stably engage within the groove 7, increasing the connection's stability. The elastic pad 8 further enhances the tightness of the fit between the spring 3 and the tape body 4, effectively reducing the impact of vibration and other factors. To prevent loosening caused by external forces, this design allows the wedge-shaped end of the locking block 5 to slide smoothly into the slot 7 along the 45° guide slope when inserted, achieving a stable connection without excessive force. Simultaneously, the matching slope design at the entrance of the slot 7 not only further guides the locking block 5 into place accurately but also enhances the tightness of the connection, effectively preventing accidental loosening due to external forces. This ingenious design not only improves assembly efficiency but also ensures the long-term stability of the connection structure. This design achieves double fixation of the braided spring, greatly enhancing the overall stability. This symmetrical design on both sides not only makes the fixing structure more evenly stressed, effectively avoiding deformation or damage caused by excessive stress on one side, but also makes the installation process simpler and faster, improving work efficiency. Meanwhile, the simultaneous insertion from both sides further restricts the vertical displacement of the tape spring, forming an anti-torsional lock and ensuring its stable operation under various working conditions. The corrugated pattern 9 not only increases the friction of the contact surface, effectively preventing the spring body 1 from slipping slightly during long-term operation, but also further improves the stability of the connection. At the same time, the corrugated pattern 9 also helps to distribute the force and reduce wear caused by excessive local pressure. The magnetic block 10 can be magnetically connected to the inside of the slot 7, which enhances the locking effect through magnetic attraction.

[0030] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.

Claims

1. A non-loosening fixing structure for a braided spring, characterized in that, Includes a spring body (1): a support rod (2) is fixedly connected to the bottom of the spring body (1), and spring sheets (3) are fixedly connected to both sides of the support rod (2). A braided body (4) is installed between the support rod (2) and the spring sheets (3). A locking block (5) is fixedly connected to the side of the spring sheet (3) near the support rod (2). A square groove (6) is opened on the surface of the braided body (4). A locking groove (7) is opened on both sides of the support rod (2). The surface of the locking block (5) is engaged with the inside of the square groove (6) and the locking groove (7).

2. The anti-loosening fixing structure for the braided spring according to claim 1, characterized in that: The card block (5) is trapezoidal, and the card slot (7) is a trapezoidal shape that is adapted to the card block (5).

3. The anti-loosening fixing structure for the braided spring according to claim 1, characterized in that: An elastic pad (8) is provided on the top of the inner wall of the reed (3).

4. The anti-loosening fixing structure for the braided spring according to claim 1, characterized in that: The wedge-shaped end of the card block (5) is provided with a 45° guide slope, and the entrance of the card slot (7) is provided with a matching slope.

5. The anti-loosening fixing structure for the braided spring according to claim 1, characterized in that: The support rod (2) has a double-sided symmetrical structure, and the springs (3) on both sides are simultaneously inserted into the slots (7) opened on both sides of the support rod (2).

6. The anti-loosening fixing structure for the braided spring according to claim 1, characterized in that: The reed (3) is provided with a wave pattern (9) on the side near the support rod (2), inside the slot (7) and on the surface of the block (5).

7. The anti-loosening fixing structure for the braided spring according to claim 1, characterized in that: The card slot (7) has magnetic particles embedded inside, and the card block (5) has a magnetic block (10) fixedly connected to one end near the card slot (7).