A telescopic ring compression tool
Patent Information
- Application Number
- CN202522355422.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-06
- Publication Date
- 2026-10-20
- Estimated Expiration
- 2035-11-06
AI Technical Summary
[0004]为解决现有技术中传统环压工具多为固定长度结构，存在一定局限性，当面对远距离高处管道接头或深腔设备内部金属环作业时，工具长度不足，需借助额外辅助工具，不仅增加操作步骤，还易因工具衔接不稳导致作业偏差，且在狭窄空间作业时，过长的固定长度工具无法灵活转动，甚至不便于伸入作业区域，适用场景受限的技术问题，本实用新型提供一种伸缩式环压工具
本实用新型通过操作人员向远离环压钳一的方向拉动两个以中心杆为中心对称设置的伸缩把手，伸缩把手带动其表面固定的支撑杆同步移动；支撑杆沿环压钳一右侧开设的两个对称限位滑槽一内壁滑动，限位滑槽一限制支撑杆的滑动方向，确保仅沿水平方向移动，使伸缩把手从环压钳一表面伸出，延长工具整体操作长度，适配远距离或深腔位置的环压作业，通过延长后的杠杆原理减轻操作人员的工作疲劳程度，若需缩短长度，向靠近环压钳一的方向推动伸缩把手，支撑杆沿限位滑槽一内壁反向滑动，伸缩把手贴合环压钳一表面收回，直至伸缩把手外壁接触环压钳一右侧固定的两个对称限位尾块表面，限位尾块阻挡伸缩把手过度滑动，避免部件碰撞损坏，完成长度调节，中心杆外壁分别转动连接在环压钳一内壁与环压钳二内壁，形成剪刀式转动结构；当操作人员握住两个伸缩把手向中间用力合拢时，伸缩把手带动环压钳一以中心杆为支点转动，同时环压钳二在中心杆的传动作用下同步转动，使环压钳一外壁与环压钳二表面逐渐贴合，二者钳口相互靠近，对放置在钳口间的工件，如管道接头、金属环施加环向压力，完成环压作业，松开伸缩把手后，在外力作用下反向转动，钳口张开，可取出已环压完成的工件，准备下一次作业，两个伸缩把手、两个限位尾块、两个限位滑槽一均以中心杆为中心对称设置，使操作人员施力时，环压钳一与环压钳二受力均匀，避免单侧受力导致的钳口偏移，支撑杆与限位滑槽一的滑动配合，限制伸缩把手仅能沿水平方向移动，且支撑杆能够增加伸缩把手伸缩后的结构强度，避免环压过程中伸缩把手发生上下晃动，确保施力方向稳定，进一步提升环压精度，满足不同规格工件的环压质量要求。
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Figure CN224867231U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of ring pressing tools, and in particular to a telescopic ring pressing tool. Background Technology
[0002] In industrial and civil fields such as pipe connections, mechanical assembly, and electrical wiring, ring pressing is a core process for achieving tight connections between components. It involves applying uniform pressure to a metal or plastic ring, causing it to plastically deform and tightly adhere to the surface of the parts to be connected, forming a seal or fixed structure. However, as pipeline systems, such as water supply and drainage and gas pipelines, develop towards larger diameters and more complex operating conditions, such as deep burial and high-altitude applications, and as the assembly of small precision equipment demands higher ring pressing accuracy, the shortcomings of traditional ring pressing tools in terms of adaptability, ease of operation, and pressure control stability have become increasingly apparent, making it difficult to meet diverse operational needs.
[0003] In the existing technology, traditional ring pressing tools are mostly fixed-length structures, which have certain limitations. When dealing with pipe joints at long distances or metal rings inside deep cavity equipment, the tool length is insufficient, and additional auxiliary tools, such as extension rods, are required. This not only increases the number of operation steps, but also easily leads to operation deviations due to unstable tool connection. Furthermore, when working in narrow spaces, excessively long fixed-length tools cannot rotate flexibly, and are even inconvenient to extend into the work area, thus limiting the applicable scenarios. Utility Model Content
[0004] To address the limitations of existing ring pressing tools, which are mostly fixed-length structures, and the fact that insufficient tool length is necessary when working on pipe joints at long distances or inside deep cavities, requiring additional auxiliary tools, not only increases the number of steps but also increases the risk of operational deviations due to unstable tool connections. Furthermore, in confined spaces, excessively long fixed-length tools cannot rotate flexibly or even reach the work area, thus limiting their applicability, this invention provides a telescopic ring pressing tool.
[0005] This utility model is achieved by the following technical solution: a telescopic ring pressing tool, including a ring pressing clamp, a telescopic component, and a limiting component; As a further improvement to the above solution, the telescopic component is disposed at the tail of the ring clamp; As a further improvement to the above solution, the limiting component is disposed at the front end and the rear end of the jaws of the ring clamp. As a further improvement to the above solution, the telescopic assembly includes a limiting tail block and a telescopic handle. As a further improvement to the above solution, the limiting tail block is fixedly connected to the tail end of the ring clamp. As a further improvement to the above solution, a telescopic handle is slidably connected to the upper surface of the limiting tail block; As a further improvement to the above solution, a limiting groove is provided on the inner side of the limiting tail block; As a further improvement to the above solution, a support rod is slidably connected to the inner wall of the limiting groove, and the tail end of the support rod is fixedly connected to the inner side of the tail end of the telescopic handle.
[0006] As a further improvement to the above solution, the ring clamp includes a ring clamp one and a ring clamp two; As a further improvement to the above solution, the first ring clamp and the second ring clamp are rotatably connected by a central rod; As a further improvement to the above solution, both the first and second ring clamps are equipped with telescopic components at their tails.
[0007] With the above technical solution, the operator pulls two telescopic handles symmetrically arranged around the central rod in a direction away from the ring clamp. The telescopic handles drive the support rods fixed on their surfaces to move synchronously. The support rods slide along the inner wall of the two symmetrical limiting grooves on the right side of the ring clamp. The limiting grooves restrict the sliding direction of the support rods, ensuring that they only move in the horizontal direction, so that the telescopic handles extend from the surface of the ring clamp, extending the overall operating length of the tool.
[0008] As a further improvement to the above solution, the limiting component includes an adjusting groove, a second limiting slide groove, an adjusting rod, a limiting ring, and a tension spring; As a further improvement to the above solution, the adjustment groove is formed on the inner wall of the front end and the rear end of the jaws of the ring clamp. As a further improvement to the above solution, the second limiting groove is formed on the inner wall of the adjusting groove; As a further improvement to the above solution, the adjusting rod is slidably connected in the inner wall of the adjusting groove, and the adjusting rod passes through the inner wall of the ring clamp and extends therethrough; As a further improvement to the above solution, the limiting ring is slidably connected within the limiting groove two; and the limiting ring is fixedly connected to the surface of the adjusting rod. As a further improvement to the above solution, the tension spring is fixedly connected to the surface of the limiting ring.
[0009] As a further improvement to the above solution, the end of the tension spring away from the limiting ring is fixedly connected to the inner wall of the limiting slide groove 2; As a further improvement to the above solution, a ring-forming mold is provided on the surface of the jaws of the ring-forming clamps; As a further improvement to the above solution, the surface of the ring pressing mold is provided with an irregularly shaped limiting groove; As a further improvement to the above solution, a connecting limit block is fixedly connected to the side end of the adjusting rod, and the connecting limit block is in contact with the inner wall of the irregularly shaped limiting groove.
[0010] As a further improvement to the above solution, limit components are provided on the inner walls of the front end and the rear end of the jaws of the first and second ring clamps.
[0011] Through the above technical solution, two ring pressing dies symmetrically arranged with the central rod as the center are respectively placed on the surfaces of ring pressing clamp two and ring pressing clamp one, ensuring that the center of the ring pressing die is aligned with the working center of the jaws; at the same time, two adjustment grooves symmetrically arranged with the center of the ring pressing die on the inner wall of ring pressing clamp two correspond to the positions of the irregular limiting grooves on the surface of the ring pressing die, providing an interface for subsequent adjustment rod limiting.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: This invention allows the operator to pull two telescopic handles symmetrically arranged around a central rod in a direction away from the first ring clamp. The telescopic handles cause the support rods fixed to their surfaces to move synchronously. The support rods slide along the inner walls of two symmetrical limiting grooves on the right side of the first ring clamp, restricting the sliding direction of the support rods and ensuring only horizontal movement. This allows the telescopic handles to extend from the surface of the first ring clamp, extending the overall operating length of the tool and adapting to ring clamping operations at long distances or deep cavities. The extended lever principle reduces operator fatigue. To shorten the length, the telescopic handles are pushed towards the first ring clamp, causing the support rods to slide in the opposite direction along the inner wall of the limiting grooves. The telescopic handles retract to the surface of the first ring clamp until their outer walls contact the surfaces of the two symmetrical limiting end blocks fixed to the right side of the first ring clamp. The limiting end blocks prevent excessive sliding of the telescopic handles, avoiding damage from collisions, thus completing the length adjustment. The outer walls of the central rod are rotatably connected to the inner walls of the first and second ring clamps, forming a scissor-like rotating structure. When the operator... When you grasp the two telescopic handles and forcefully close them together, the handles cause the first ring clamp to rotate around the central rod as a fulcrum. Simultaneously, the second ring clamp rotates synchronously under the transmission action of the central rod, causing the outer wall of the first ring clamp to gradually come into contact with the surface of the second ring clamp. The jaws of both clamps approach each other, applying circumferential pressure to the workpiece placed between the jaws, such as a pipe joint or metal ring, completing the ring clamping operation. After releasing the telescopic handles, the clamps rotate in the opposite direction under external force, opening the jaws and allowing you to remove the ring-crushed workpiece, ready for the next operation. Two limiting tail blocks and two limiting slides are symmetrically arranged around the central rod, ensuring that the ring clamps are evenly stressed when the operator applies force, avoiding jaw offset caused by unilateral force. The sliding fit between the support rod and the limiting slide restricts the telescopic handle to move only in the horizontal direction. Furthermore, the support rod increases the structural strength of the telescopic handle after extension and retraction, preventing the handle from wobbling up and down during ring pressing, ensuring stable force direction, further improving ring pressing accuracy, and meeting the ring pressing quality requirements of workpieces of different specifications.
[0013] This invention utilizes two ring pressing molds symmetrically arranged around a central rod, which are respectively placed on the surfaces of ring pressing clamp two and ring pressing clamp one, ensuring that the center of the ring pressing mold is aligned with the working center of the clamp jaws. Simultaneously, two symmetrical adjustment grooves centered on the ring pressing mold are formed on the inner wall of ring pressing clamp two, corresponding to the irregularly shaped limiting grooves on the surface of the ring pressing mold. This provides an interface for subsequent adjustment rod positioning, preventing lateral displacement of the ring pressing mold. The operator pushes the two adjustment rods, causing them to slide along the inner wall of the adjustment grooves. The adjustment rods penetrate the inner wall of ring pressing clamp two and extend thereafter. Two limiting rings fixed to the surface of the adjustment rods slide synchronously along the inner wall of two limiting grooves (II) formed on the inner wall of the adjustment grooves. The limiting grooves (II) restrict the sliding direction of the limiting rings, ensuring that the adjustment rods move only horizontally, preventing tilting or displacement. Simultaneously, the limiting rings stretch the tension spring, causing the connecting limiting block fixed to the surface of the adjustment rod to detach from the irregularly shaped limiting groove on the surface of the ring pressing mold. The ring pressing mold can then be removed, completing the disassembly process. This facilitates the replacement of ring pressing molds of different specifications to adapt to different workpieces, improving the tool's versatility. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the telescopic component structure of this utility model; Figure 3 This is a schematic cross-sectional view of the telescopic component of this utility model; Figure 4 This is a schematic diagram of the limiting component structure of this utility model; Figure 5 This is a schematic cross-sectional view of the limiting component of this utility model; Figure 6 This utility model Figure 5 Enlarged structural diagram of section A in the middle.
[0015] Explanation of key symbols: 1. Ring clamp one; 2. Telescopic assembly; 201. Center rod; 202. Ring clamp two; 203. Limiting tail block; 204. Telescopic handle; 205. Limiting slide groove one; 206. Support rod; 3. Limiting assembly; 301. Adjusting groove; 302. Limiting slide groove two; 303. Adjusting rod; 304. Limiting ring; 305. Tension spring; 306. Ring clamping mold; 307. Irregularly shaped limiting groove; 308. Connecting limiting block. Detailed Implementation
[0016] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.
[0017] Example: Please combine Figure 1-6 The telescopic ring pressing tool of this embodiment includes a ring pressing clamp, a telescopic component 2 and a limiting component 3; The telescopic component 2 is located at the tail of the ring clamp; Limiting component 3 is set at the front end and the rear end of the jaws of the ring clamping pliers; Telescopic component 2 includes a limiting tail block 203 and a telescopic handle 204. The limiting tail block 203 is fixedly connected to the tail end of the ring clamp; A telescopic handle 204 is slidably connected to the upper surface of the limiting tail block 203; A limiting groove 205 is provided on the inner side of the limiting tail block 203; A support rod 206 is slidably connected to the inner wall of the limiting slide groove 205, and the tail end of the support rod 206 is fixedly connected to the inner side of the tail end of the telescopic handle 204.
[0018] The ring crimping clamps include ring crimping clamp 1 and ring crimping clamp 202; Ring clamp 1 and ring clamp 202 are rotatably connected by the center rod 201; Both the ring clamp 1 and the ring clamp 202 are equipped with telescopic components 2 at their tails. The support rod 206 slides with the limiting slide groove 205, which restricts the telescopic handle 204 to move only in the horizontal direction. The support rod 206 can increase the structural strength of the telescopic handle 204 after it is extended and retracted, and prevent the telescopic handle 204 from shaking up and down during the ring clamping process, thus ensuring the stability of the force application direction.
[0019] The limiting component 3 includes an adjusting groove 301, a limiting slide groove 302, an adjusting rod 303, a limiting ring 304, and a tension spring 305; Adjustment groove 301 is formed on the inner wall of the front end and the rear end of the jaws of the ring clamp; The limiting slide groove 302 is formed on the inner wall of the adjusting groove 301; The adjusting rod 303 is slidably connected in the inner wall of the adjusting groove 301, and the adjusting rod 303 passes through the inner wall of the ring clamp and extends therethrough; The limiting ring 304 is slidably connected within the limiting groove 302; and the limiting ring 304 is fixedly connected to the surface of the adjusting rod 303; The tension spring 305 is fixedly connected to the surface of the limit ring 304.
[0020] The end of the tension spring 305 away from the limiting ring 304 is fixedly connected to the inner wall of the limiting slide groove 302; The jaws of the ring-forming pliers are in contact with a ring-forming mold 306; The ring pressing die 306 has an irregularly shaped limiting groove 307 on its surface; The adjusting rod 303 is fixedly connected to a connecting limit block 308 on its side end, and the connecting limit block 308 is in contact with the inner wall of the irregularly shaped limiting groove 307.
[0021] Limiting components 3 are provided on the inner walls of the front and rear ends of the jaws of both the ring pressing clamp 1 and the ring pressing clamp 202. Then, by installing the replaced ring pressing mold 306 onto the surface of the ring pressing clamp 202, and after the connecting limiting block 308 is aligned with the irregularly shaped limiting groove 307 opened on the ring pressing mold 306, the adjusting rod 303 is released, causing the tension spring 305 to pull the limiting ring 304 to slide along the inner wall of the limiting slide groove 2 302. At the same time, the adjusting rod 303 drives the connecting limiting block 308 to engage inside the irregularly shaped limiting groove 307, thereby limiting the ring pressing mold 306 through the connecting limiting block 308.
[0022] The implementation principle of a telescopic ring pressing tool in this embodiment is as follows: The operator pulls two telescopic handles 204 symmetrically arranged around the central rod 201 in a direction away from the ring pressing clamp 1. The telescopic handles 204 cause the support rods 206 fixed to their surfaces to move synchronously. The support rods 206 slide along the inner walls of two symmetrical limiting grooves 205 on the right side of the ring pressing clamp 1. The limiting grooves 205 restrict the sliding direction of the support rods 206, ensuring movement only in the horizontal direction. This allows the telescopic handles 204 to extend from the surface of the ring pressing clamp 1, extending the overall operating length of the tool and adapting it to ring pressing operations at long distances or deep cavities. The extended lever principle reduces operator fatigue. To shorten the length, push the telescopic handle 204 towards the ring clamp 1. The support rod 206 slides in the opposite direction along the inner wall of the limiting groove 205. The telescopic handle 204 retracts to the surface of the ring clamp 1 until the outer wall of the telescopic handle 204 contacts the surfaces of the two symmetrical limiting tail blocks 203 fixed on the right side of the ring clamp 1. The limiting tail blocks 203 prevent the telescopic handle 204 from sliding excessively, avoiding damage to the parts. The length adjustment is completed. The outer wall of the center rod 201 is rotatably connected to the inner wall of the ring clamp 1 and the inner wall of the ring clamp 202, forming a shear. The device features a blade-type rotating structure. When the operator grips the two telescopic handles 204 and pulls them together, the handles 204 drive the ring clamp 1 to rotate around the central rod 201. Simultaneously, the ring clamp 202 rotates synchronously under the transmission action of the central rod 201, causing the outer wall of the ring clamp 1 to gradually come into contact with the surface of the ring clamp 202. The jaws of both clamps approach each other, applying circumferential pressure to the workpiece placed between the jaws, such as a pipe joint or metal ring, completing the ring clamping operation. After releasing the telescopic handles 204, the clamps rotate in the opposite direction under external force, opening the jaws to remove the ring-crushed workpiece, preparing for the next operation. Handle 204, two limiting tail blocks 203, and two limiting slides 205 are all symmetrically arranged around the central rod 201, so that when the operator applies force, the ring clamp 1 and ring clamp 202 are subjected to force evenly, avoiding jaw deviation caused by force on one side. The sliding cooperation between the support rod 206 and the limiting slide 205 restricts the telescopic handle 204 to move only in the horizontal direction. In addition, the support rod 206 can increase the structural strength of the telescopic handle 204 after extension and retraction, preventing the telescopic handle 204 from shaking up and down during ring pressing, ensuring the stability of the force direction, further improving the ring pressing accuracy, and meeting the ring pressing quality requirements of workpieces of different specifications.Furthermore, two ring-forming molds 306, symmetrically arranged around the central rod 201, are respectively fitted onto the surfaces of ring-forming clamp 202 and ring-forming clamp 1, ensuring that the center of the ring-forming mold 306 is aligned with the working center of the clamp jaws. Simultaneously, two symmetrical adjustment grooves 301, symmetrically arranged around the center of the ring-forming mold 306, are formed on the inner wall of ring-forming clamp 202, corresponding to the irregularly shaped limiting grooves 307 on the surface of the ring-forming mold 306. This provides an interface for subsequent adjustment rod limiting, preventing lateral displacement of the ring-forming mold 306. The operator can push the two adjustment rods 303 to move them along the adjustment grooves 307. 01. The adjusting rod 303 slides through the inner wall of the ring clamp 202 and extends therethrough. Two limiting rings 304 fixed on the surface of the adjusting rod 303 slide synchronously along the inner wall of the two limiting grooves 302 opened on the inner wall of the adjusting groove 301. The limiting grooves 302 restrict the sliding direction of the limiting rings 304, ensuring that the adjusting rod 303 moves only in the horizontal direction and avoids tilting or deviation. At the same time, the limiting rings 304 will stretch the tension spring 305, and the connecting limiting block 308 fixed on the surface of the adjusting rod 303 will disengage from the inner wall of the irregular limiting groove 307 on the surface of the ring clamp 306. Then, the ring pressing mold 306 can be removed, completing the disassembly and facilitating the replacement of ring pressing molds 306 of different specifications to adapt to different workpieces, improving tool versatility. The replaced ring pressing mold 306 can then be installed onto the surface of the ring pressing clamp 202. After the connecting limiting block 308 aligns with the irregularly shaped limiting groove 307 opened on the ring pressing mold 306, the adjusting rod 303 is released, causing the tension spring 305 to pull the limiting ring 304 to slide along the inner wall of the limiting groove 2 302. Simultaneously, the adjusting rod 303 drives the connecting limiting block 308 to engage with the irregularly shaped limiting groove. Inside 307, the ring pressing mold 306 is limited by the connecting limit block 308. When the operator drives the ring pressing clamp 1 and the ring pressing clamp 202 to close through the telescopic handle 204, the ring pressing mold 306 always maintains precise alignment with the workpiece under the limiting action of the connecting limit block 308, avoiding mold displacement due to force application. Moreover, the ring pressing mold on the surface of the ring pressing clamp 1 and the fixed structure inside the ring pressing clamp 202 are the same, ensuring that the circumferential pressure on the workpiece is evenly distributed, preventing excessive local pressure from causing workpiece deformation, and further ensuring ring pressing accuracy.
[0023] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.
Claims
1. A telescopic ring pressing tool, characterized in that, Includes a ring clamp, a telescopic assembly (2), and a limiting assembly (3); The telescopic component (2) is located at the tail of the ring clamp; The limiting component (3) is disposed at the front end and the rear end of the jaws of the ring clamp; The telescopic assembly (2) includes a limiting tail block (203) and a telescopic handle (204). The limiting tail block (203) is fixedly connected to the tail end of the ring clamp; A telescopic handle (204) is slidably connected to the upper surface of the limiting tail block (203). A limiting groove (205) is provided on the inner side of the limiting tail block (203); The inner wall of the limiting slide groove (205) is slidably connected to a support rod (206), and the tail end of the support rod (206) is fixedly connected to the inner side of the tail end of the telescopic handle (204).
2. The telescopic ring pressing tool according to claim 1, characterized in that: The ring clamps include ring clamp one (1) and ring clamp two (202); The ring clamp one (1) and the ring clamp two (202) are rotatably connected by the central rod (201); Both the ring clamp one (1) and the ring clamp two (202) are equipped with telescopic components (2) at their tails.
3. The telescopic ring pressing tool according to claim 1, characterized in that: The limiting component (3) includes an adjustment groove (301), a second limiting slide groove (302), an adjustment rod (303), a limiting ring (304), and a tension spring (305); The adjustment groove (301) is formed on the inner wall of the front end and the rear end of the jaws of the ring clamp; The limiting slide groove 2 (302) is formed on the inner wall of the adjusting groove (301); The adjusting rod (303) is slidably connected in the inner wall of the adjusting groove (301), and the adjusting rod (303) penetrates the inner wall of the ring clamp and extends therethrough; The limiting ring (304) is slidably connected in the limiting groove (302); and the limiting ring (304) is fixedly connected to the surface of the adjusting rod (303); The tension spring (305) is fixedly connected to the surface of the limiting ring (304).
4. A telescopic ring pressing tool as described in claim 3, characterized in that: The end of the tension spring (305) away from the limiting ring (304) is fixedly connected to the inner wall of the limiting slide groove (302); The jaws of the ring-forming pliers are in contact with a ring-forming mold (306). The surface of the ring pressing mold (306) is provided with an irregularly shaped limiting groove (307); The adjusting rod (303) is fixedly connected to a connecting limit block (308) on its side end, and the connecting limit block (308) is in contact with the inner wall of the irregular limiting groove (307).
5. A telescopic ring pressing tool as described in claim 2, characterized in that: Limiting components (3) are provided on the inner walls of the front end and the rear end of the jaws of the ring clamping clamp one (1) and the ring clamping clamp two (202).