Soft hoop
By using composite hoops in the soft hinge and using the combination of heat shrink hoops and metal hoop heads, the problem of high material cost in the prior art is solved, and the effect of reducing material costs and improving connection stability is achieved.
Patent Information
- Application Number
- CN202421694277.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-17
- Publication Date
- 2025-04-11
- Estimated Expiration
- 2034-07-17
AI Technical Summary
The existing flexible hoop strap part usually uses a whole metal strap, resulting in higher material costs and increased production costs.
The composite slings are used, including heat shrink slings and metal sling heads. The plug-in part of the metal sling head is locked into the slot of the heat shrink sling through the heat shrink sling process, reducing metal usage and reducing material costs.
While ensuring the strength and adaptability of the hinge, it reduces the material cost, simplifies the installation process, and adapts to different specifications of metal hoop heads through heat shrinkage characteristics, improving the stability and reliability of the connection.
Smart Images
Figure CN222746838U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of fasteners, and in particular to a soft clamp. Background Art
[0002] A flexible clamp is a fastener used to connect pipes, valves and pipe fittings. When a flexible pipe is connected to a rigid pipe, the flexible pipe is usually placed on the outer wall of the rigid pipe joint, and then the flexible clamp is used to tighten the pipe joint.
[0003] In the related art, the flexible clamp includes a clamp belt and joints provided at both ends of the clamp belt for locking. The clamp belt material is usually selected from metals with certain deformation ability (such as steel belt, etc.), so that the flexible clamp has a certain adaptability to the temperature change of the pipeline or the outside world, which can improve the pipeline's ability to resist vibration, shrinkage and expansion, thereby improving the stability of the pipeline system, and can also reduce the damage of the pipeline stress to the flexible clamp.
[0004] With respect to the above-mentioned related technologies, the band portion of the flexible clamp is usually set as a whole metal band. Since the material cost of the metal band is relatively high, the overall production cost of the flexible clamp is easily increased. Utility Model Content
[0005] In order to improve the problem of high material cost of the hoop band, thereby reducing the production cost of the soft hoop, the present application provides a soft hoop.
[0006] The soft clamp provided in this application adopts the following technical solution:
[0007] A flexible clamp comprises a composite clamp and a first joint and a second joint respectively installed at both ends of the composite clamp and butt-locked, the composite clamp comprises a heat shrinkable clamp and metal clamp heads arranged at both ends of the heat shrinkable clamp, the metal clamp head has a mounting portion for installing the first joint / the second joint and a plug-in portion for connecting the heat shrinkable clamp, the heat shrinkable clamp has a slot for arranging the plug-in portion, and the heat shrinkable clamp locks the plug-in portion in the slot through a heat shrinking process.
[0008] By adopting the above technical solution, the heat shrinkable hoop is used as the main part of the composite hoop, which reduces the amount of metal used while ensuring the strength and adaptability of the hoop, thereby reducing material costs. The metal hoop heads at both ends enable the hoop to maintain sufficient strength during the tightening process to ensure the stability of the connection. Due to the heat shrinkage characteristics of the heat shrinkable hoop, the plug-in part of the metal hoop head can be locked in the slot of the heat shrinkable hoop through the heat shrinkage process, which simplifies the installation process and can also adapt to metal hoop heads of different specifications. The heat shrinkable hoop has a certain deformation ability, which can alleviate the impact of pipeline stress on the hoop to a certain extent and reduce the damage to the hoop.
[0009] Furthermore, the circumferential angle between the end of the plug-in portion and the end of the heat shrink band is between 15° and 45°.
[0010] By adopting the above technical solution, the circumferential angle between the end of the plug-in part and the end of the heat shrink band is controlled between 15° and 45°, and the minimum and maximum lengths of the plug-in part inserted into the slot are restricted. On the one hand, it can ensure that the connection between the metal hoop and the heat shrink band is tighter and more stable, and prevent loosening or misalignment of the connection. On the other hand, while ensuring the stability of the connection, the material consumption is controlled and the cost is reduced.
[0011] Furthermore, the plug-in portion has a plug connector at an end away from the mounting portion, and a width of the plug connector gradually decreases in a direction away from the mounting portion.
[0012] By adopting the above technical solution, the width of the plug connector is gradually reduced, which can form a guiding insertion effect when the plug part enters the slot, facilitating the connection between the metal hoop head and the heat shrinkable hoop band. When the metal hoop head and the heat shrinkable hoop band are locked by the heat shrink process, the width of the plug connector is gradually reduced, so that a stronger locking force is formed between the plug connector and the slot, the tensile and shear resistance of the connection is improved, and the overall strength of the clamp is enhanced.
[0013] Furthermore, the plug-in portion is provided with a limiting protrusion on an end portion away from the mounting portion.
[0014] By adopting the above technical solution, when the metal hoop and the heat shrinkable hoop are locked by the heat shrink process, the interaction between the limiting protrusion and the slot can increase the friction between the metal hoop and the heat shrinkable hoop, thereby enhancing the stability of the connection. When the pipeline system is subjected to vibration or external force, the connection is effectively prevented from loosening or dislocation.
[0015] Furthermore, the upper and lower surfaces of the plug-in portion are both provided with friction convex patterns.
[0016] By adopting the above technical solution, friction convex patterns are provided on the upper and lower surfaces of the plug-in part, which can significantly increase the friction between the metal hoop head and the heat shrink hoop band, making the connection between the two more secure and effectively preventing loosening or slipping caused by vibration, temperature changes and other factors.
[0017] Furthermore, the plug-in portion is provided with a plurality of through holes arranged in a uniform array.
[0018] By adopting the above technical solution, when the metal hoop and the heat shrink band are locked through the heat shrink process, a number of through holes arranged in a uniform array are opened on the plug-in part. Due to its heat shrinkage characteristics, the heat shrink band can be symmetrically sunk into the through holes from both sides, thereby achieving the effect of locking the plug-in part, which is equivalent to increasing the roughness of the plug-in part, increasing the friction between the metal hoop and the heat shrink band, and preventing loosening and slipping. The uniform array arrangement of the through holes not only increases the friction of the plug-in part, but also takes into account the structural strength of the metal hoop, so that the metal hoop is not prone to breakage caused by uneven force.
[0019] Furthermore, a plurality of through holes are provided on the plug-in portion at intervals along the length direction.
[0020] By adopting the above technical solution, when the metal hoop and the heat shrink band are locked by the heat shrink process, a plurality of through holes are provided at intervals along the length direction of the plug-in part. Due to its heat shrinkage characteristics, the heat shrink band can be symmetrically sunk into the through holes from both sides, thereby achieving the effect of locking the plug-in part, which is equivalent to increasing the roughness of the plug-in part, increasing the friction between the metal hoop and the heat shrink band, and preventing loosening and slipping. The through holes are provided at intervals, which not only increases the friction of the plug-in part, but also takes into account the structural strength of the metal hoop, so that the metal hoop is not prone to breakage caused by uneven force.
[0021] Further, the first joint includes a connecting shaft passing through the hoop head and a screw rod passing vertically through the middle of the connecting shaft, the screw rod and the connecting shaft are slidably connected, and the second joint includes a T-shaped connecting pipe provided on the hoop head and a locking nut matched with the screw rod, the screw rod passes through and slides in the T-shaped connecting pipe, and the locking nut is threadedly connected to an end of the screw rod away from the hoop head;
[0022] An elastic member is sleeved on the outside of the screw rod, and two ends of the elastic member are tightly pressed between the T-shaped connecting pipe and the locking nut.
[0023] By adopting the above technical solution, the screw rod slides in the connecting shaft of the first joint and the T-type connecting tube in the second joint, so that the connection distance between the two hoops can be flexibly adjusted, thereby being able to adapt to pipes of different sizes or installation requirements. When the screw rod is inserted into and slides in the T-type connecting tube, the locking nut is rotated to move the locking nut along the axial direction of the screw rod, thereby achieving a firm lock between the hoops. Due to pipeline vibration or changes in the internal and external environment, the locking nut may be displaced between the screw rod. The elastic member (such as a spring) is pressed against the T-type connecting tube and the locking nut to fill the gap between the two, which is conducive to improving the connection stability between the locking nut and the screw rod, thereby improving the stability and reliability of the soft clamp.
[0024] Furthermore, the locking nut is coaxially provided with an abutment portion on one side close to the elastic member, and an outer wall of the abutment portion abuts against an inner wall of the elastic member.
[0025] By adopting the above technical solution, the abutment portion is located on the side of the locking nut close to the elastic member and is coaxially arranged with the locking nut. The outer wall of the abutment portion abuts against the inner wall of the elastic member (such as a spring), providing a stable support surface for the elastic member, preventing the elastic member from shifting or twisting when subjected to external force, and ensuring that the elastic member can fully exert its shock-absorbing and anti-loosening functions.
[0026] In summary, the present application includes at least one of the following beneficial technical effects:
[0027] 1. Using heat shrinkable hoop as the main part of the composite hoop reduces the amount of metal used, thereby reducing material costs. By accurately controlling the circumferential angle between the end of the plug-in part and the end of the heat shrinkable hoop, while ensuring the stability of the connection, the amount of material used is controlled, further reducing costs. The heat shrinking characteristics of the heat shrinkable hoop make the installation process simple, and the plug-in part of the metal hoop head can be locked in the slot of the heat shrinkable hoop through the heat shrinking process;
[0028] 2. Combined with the heat shrinkage characteristics of the heat shrinkable hoop, by providing a limiting convex portion, a through hole and friction convex patterns on the upper and lower surfaces of the plug-in portion of the metal hoop head, the connection between the metal hoop head and the heat shrinkable hoop is ensured to be tighter and more stable, effectively preventing the connection from loosening or dislocation;
[0029] 3. The coordinated arrangement of the screw, T-type connecting pipe and locking nut enables the connection distance between the two hoops to be flexibly adjusted to adapt to pipes of different sizes or installation requirements. The arrangement of the elastic member and the abutment portion can prevent the displacement between the locking nut and the screw due to pipeline vibration or changes in the internal and external environment, thereby improving the stability and reliability of the connection. BRIEF DESCRIPTION OF THE DRAWINGS
[0030] Figure 1 It is a schematic diagram of the overall structure of the soft clamp of Example 1 of the present application.
[0031] Figure 2 It is a schematic diagram of the structural explosion of the soft clamp of Example 1 of the present application.
[0032] Figure 3 It is a partially enlarged schematic diagram of the hot band slot in Example 1 of the present application.
[0033] Figure 4 It is a schematic diagram of the structural explosion of the first joint and the second joint in Example 1 of the present application.
[0034] Figure 5 It is a schematic diagram of the overall structure of the metal hoop in Example 1 of the present application.
[0035] Figure 6 It is a schematic diagram of the overall structure of the metal hoop in Example 2 of the present application.
[0036] Figure 7 It is a schematic diagram of the overall structure of the metal hoop in Example 3 of the present application.
[0037] Explanation of the reference numerals in the accompanying drawings: 1. composite hoop; 11. heat shrink hoop; 111. slot; 12. metal hoop head; 121. mounting portion; 122. plug-in portion; 1221. plug connector; 1222. limiting convex portion; 1223. friction convex pattern; 1224. through hole; 2. first connector; 21. connecting shaft; 22. screw; 3. second connector; 31. T-type connecting pipe; 32. locking nut; 321. abutment portion; 33. elastic member. DETAILED DESCRIPTION
[0038] In the embodiment of the present application, a soft clamp is disclosed. In order to make the purpose, technical solution and advantages of the present application more clear, the following is combined with embodiment 1, embodiment 2, embodiment 3 and attached Figure 1-7 , further details of this application are given.
[0039] Example 1
[0040] Reference Figure 1 The flexible clamp comprises a composite clamp band 1, a first joint 2 and a second joint 3. The first joint 2 and the second joint 3 are respectively installed at two ends of the composite clamp band 1, and the first joint 2 and the second joint 3 are butt-jointed and locked to fix the clamp to the outside of the pipeline.
[0041] Reference Figure 2 and Figure 3 The composite band 1 includes a heat shrink band 11 and metal band heads 12 symmetrically arranged at both ends of the heat shrink band 11. The heat shrink band 11 has a slot 111 for the metal band head 12 to be arranged. In this embodiment, the metal band head 12 has a mounting portion 121 and a plug-in portion 122. The mounting portions 121 on the two metal band heads 12 are respectively used to mount the first joint 2 and the second joint 3, and the plug-in portions 122 of the two metal band heads 12 are respectively used to connect with the heat shrink band 11. When the metal band head 12 is inserted into the slots 111 at both ends of the heat shrink band 11, the heat shrink band 11 locks the plug-in portion 122 in the slot 111 through a heat shrinking process.
[0042] Reference Figure 2 and Figure 4The first joint 2 includes a connecting shaft 21 and a screw 22. The connecting shaft 21 is arranged in the mounting portion 121 of the metal hoop head 12. The screw 22 is vertically penetrated on the connecting shaft 21 and is slidably connected with the connecting shaft 21. The second joint 3 includes a T-shaped connecting pipe 31, a locking nut 32 and an elastic member 33. The T-shaped connecting pipe 31 is installed in the mounting portion 121 of the metal hoop head 12. The ends of the screw 22 pass through the connecting shaft 21 and the T-shaped connecting pipe 31 in sequence and are threadedly engaged with the locking nut 32. The elastic member 33 of this embodiment is preferably a spring. The elastic member 33 is sleeved on the outside of the screw 22 and the two ends of the elastic member 33 abut between the ends of the screw 22 and the locking nut 32.
[0043] The locking nut 32 is coaxially arranged near one side of the elastic member 33 and is integrally connected with an abutment portion 321, and the outer diameter of the abutment portion 321 is slightly smaller than the inner diameter of the elastic member 33. When the locking nut 32 abuts against the elastic member 33, the abutment portion 321 can be inserted into the elastic member 33 and the outer wall of the abutment portion 321 abuts against the inner wall of the elastic member 33, thereby preventing radial displacement between the elastic member 33 and the screw rod 22, and improving the stability of the fastening of the first joint 2 and the second joint 3.
[0044] Reference Figure 2 and Figure 5 When the plug-in portion 122 is inserted into the slot 111, the circumferential angle between the end of the plug-in portion 122 and the end of the heat shrinkable band 11 is between 15° and 45°, which limits the length of the plug-in portion 122 inserted into the slot 111. While controlling the material cost, the connection stability between the metal hoop 12 and the heat shrinkable band 11 is ensured to prevent the insertion portion from being too short and causing the connection to become loose.
[0045] The plug portion 122 is integrally connected with a plug connector 1221 at one end away from the mounting portion 121. The width of the plug connector 1221 gradually decreases in the direction away from the mounting portion 121, thereby forming a guiding insertion effect when the plug portion 122 enters the slot 111. A limiting convex portion 1222 is provided on the end of the plug connector 1221 for inserting into the slot 111. When the metal hoop 12 and the heat shrinkable hoop 11 are locked by the heat shrinking process, the heat shrinkable hoop 11 squeezes the limiting convex portion 1222 to form an effect of increasing friction and improving the connection stability.
[0046] Reference Figure 1 and Figure 5The plug-in portion 122 is provided with a plurality of through holes 1224 along the length direction. The through holes 1224 in this embodiment are rectangular square holes, and the through holes 1224 are evenly spaced, so as to avoid the holes affecting the structural strength of the metal hoop 12. Due to its heat shrinking property, the heat shrinkable band 11 can be symmetrically sunk into the through holes 1224 along the thickness direction of the plug-in portion 122 after being heated, thereby locking the plug-in portion 122, improving the friction between the metal hoop 12 and the heat shrinkable band 11, and preventing loosening and slipping.
[0047] The implementation principle of a soft clamp in an embodiment of the present application is as follows: the soft clamp is designed with a composite clamp band 1, which is composed of a heat shrinkable clamp band 11 and metal clamp heads 12 symmetrically arranged at both ends. Combining the flexibility of the heat shrinkable clamp band 11 and the strength of the metal clamp head 12, the adaptability and strength of the clamp are guaranteed while reducing the cost of metal materials.
[0048] After the plug-in portion 122 of the metal hoop head 12 is inserted into the slot 111 of the heat shrinkable band 11, the plug-in portion 122 is locked in the slot 111 through the heat shrink process. The plug connector 1221 allows the plug-in portion 122 to form a guiding effect when inserted into the slot 111, which is convenient for installation. When the heat shrinkable band 11 is locked through the heat shrink process, the limiting protrusion 1222 interacts with the heat shrinkable band 11 to increase the friction force and improve the connection stability. The through hole 1224 opened along the length direction on the plug-in portion 122 allows the heat shrinkable band 11 to sink into the through hole 1224, increasing the friction force between the plug-in portion 122 and the heat shrinkable band 11 to prevent loosening and slipping. The circumferential angle of the end of the plug-in portion 122 from the end of the heat shrinkable band 11 is controlled between 15° and 45°, which not only ensures the connection stability but also controls the material cost.
[0049] On the first joint 2 and the second joint 3, the screw 22 slides in the connecting shaft 21 and the T-shaped connecting pipe 31, so that the connection distance between the two hoops can be flexibly adjusted to adapt to pipes of different diameters, and the threaded cooperation of the locking nut 32 and the screw 22 realizes a tight connection. When the pipeline vibrates or the internal and external environment changes, the elastic member 33 provides a buffer and shock absorption effect to prevent displacement between the locking nut 32 and the screw 22, thereby improving the stability of the connection. The abutment portion 321 abuts against the inner wall of the elastic member 33, providing a stable support surface for the elastic member 33, ensuring that the elastic member 33 can fully play its role.
[0050] Example 2
[0051] Reference Figure 1 and Figure 6, which is different from the first embodiment, a plurality of through holes 1224 are provided on the plug-in portion 122. The through holes 1224 in the present embodiment are round holes with a relatively small diameter, and the through holes 1224 are evenly arranged in an array. The provision of the through holes 1224 in the present embodiment, on the one hand, ensures that the heat shrinkable band 11 can be sunk into the through holes 1224 after heat shrinkage, thereby increasing the friction between the metal hoop 12 and the heat shrinkable band 11 to prevent loosening and slipping, and on the other hand, avoids the structural strength of the metal hoop 12 being affected by the large opening, thereby preventing the metal hoop 12 from being deformed or even broken.
[0052] Example 3
[0053] Reference Figure 1 and Figure 7 , which is different from the first and second embodiments, is that the present embodiment cancels the provision of the through hole 1224 on the plug-in portion 122, thereby maximizing the structural strength of the plug-in portion 122. In order to increase the friction between the plug-in portion 122 and the heat shrinkable band 11, the upper and lower surfaces of the plug-in portion 122 in the present embodiment are provided with friction convex patterns 1223. When the plug-in portion 122 is inserted into the slot 111, the friction convex patterns 1223 make the connection between the metal hoop 12 and the heat shrinkable band more secure, effectively preventing loosening or slipping caused by vibration, temperature changes, and other factors.
[0054] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. A soft clamp, characterized by: The invention comprises a composite hoop (1) and a first joint (2) and a second joint (3) respectively mounted at two ends of the composite hoop (1) and butt-locked, the composite hoop (1) comprising a heat shrinkable hoop (11) and metal hoop heads (12) arranged at two ends of the heat shrinkable hoop (11), the metal hoop heads (12) having a mounting portion (121) for mounting the first joint (2) / the second joint (3) and a plug-in portion (122) for connecting the heat shrinkable hoop (11), the heat shrinkable hoop (11) having a slot (111) for arranging the plug-in portion (122), and the heat shrinkable hoop (11) locks the plug-in portion (122) in the slot (111) through a heat shrinking process.
2. The flexible clamp according to claim 1, characterized in that: The circumferential angle between the end of the plug-in portion (122) and the end of the heat shrinkable band (11) is between 15° and 45°.
3. The flexible clamp according to claim 1, characterized in that: The plug-in portion (122) has a plug connector (1221) at an end portion away from the mounting portion (121), and the width of the plug connector (1221) gradually decreases in a direction away from the mounting portion (121).
4. The flexible clamp according to claim 1, characterized in that: The plug-in portion (122) is provided with a limiting protrusion (1222) at an end portion away from the mounting portion (121).
5. The flexible clamp according to claim 1, characterized in that: The upper and lower surfaces of the plug-in portion (122) are both provided with friction convex patterns (1223).
6. The flexible clamp according to claim 1, characterized in that: The plug-in portion (122) is provided with a plurality of through holes (1224) arranged in a uniform array.
7. The flexible clamp according to claim 1, characterized in that: The plug-in portion (122) is provided with a plurality of through holes (1224) spaced apart along the length direction.
8. The flexible clamp according to claim 1, characterized in that: The first joint (2) comprises a connecting shaft (21) passing through the ferrule and a screw rod (22) vertically passing through the middle of the connecting shaft (21), wherein the screw rod (22) is slidably connected to the connecting shaft (21), and the second joint (3) comprises a T-shaped connecting pipe (31) arranged on the ferrule and a locking nut (32) matched with the screw rod (22), wherein the screw rod (22) passes through and slides in the T-shaped connecting pipe (31), and the locking nut (32) is threadedly connected to an end of the screw rod (22) away from the ferrule; An elastic member (33) is sleeved on the outside of the screw rod (22), and two ends of the elastic member (33) are tightly pressed between the T-shaped connecting pipe (31) and the locking nut (32).
9. The flexible clamp according to claim 8, characterized in that: The locking nut (32) is coaxially provided with an abutment portion (321) on one side close to the elastic member (33), and the outer wall of the abutment portion (321) abuts against the inner wall of the elastic member (33).