A quick-mounting pull rod assembly
The quick-release pull rod assembly features a plug-in and connection design, enabling automatic alignment and stable connection in tilted or cornered positions. This solves the problems of operational difficulty and error risk, and improves the efficiency and safety of pull rod connections.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU DINGYU MASCH TECH CO LTD
- Filing Date
- 2025-06-30
- Publication Date
- 2026-06-12
AI Technical Summary
When the lever is installed at an angle or in a corner, the operator needs to adjust their posture to insert the pin, which increases the difficulty of operation and fatigue, and increases the risk of error.
The design incorporates a quick-release pull rod assembly, including a plug-in assembly and a connecting assembly. It utilizes a plug, slide, arc surface, and spring structure to achieve automatic alignment and positioning, reducing manual alignment errors. The conical expansion port guides the pin alignment, and the arc structure provides stable positioning.
It reduces the operator's energy expenditure and the risk of error, improves the efficiency and safety of the tie rod connection, and adapts to complex mechanical environments.
Smart Images

Figure CN224352218U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of tie rod technology, specifically a quick-install tie rod assembly. Background Technology
[0002] Currently, the connection method between tie rods is usually a pin-hole series connection. Specifically, each tie rod has a pin hole machined at its end. By passing a pin through these pin holes, the two tie rods are connected together. This connection method can ensure the synchronous movement between the tie rods, so that the movement of one tie rod can drive the corresponding movement of the other tie rod. In this way, the tie rods can achieve reciprocating motion in the forward and backward directions, thus playing an important transmission and control role in various mechanical structures. This connection method is widely used in a variety of mechanical systems due to its simple structure and high reliability, such as vehicle suspension systems, joint connections of robotic arms, and various automated equipment.
[0003] In actual operation, the installation position of the tie rod is often strictly limited by the spatial angle. In particular, when the pin holes of the two tie rods need to be precisely aligned in order to insert the pin, the operator often faces the dilemma of not being able to operate from the ideal angle. For example, the tie rod is installed on an inclined plane or in a corner position, which forces the operator to adjust his posture to complete the operation of inserting the pin. This not only greatly increases the difficulty of operation, but also easily leads to operator fatigue, thereby increasing the risk of operational errors. Therefore, a quick-install tie rod assembly is proposed to address the above problems. Utility Model Content
[0004] The purpose of this invention is to provide a quick-install pull rod assembly to solve the problem that the pull rod may be installed on an inclined plane or in a corner, which forces the operator to adjust their posture to insert the pin. This not only greatly increases the difficulty of operation, but also easily leads to operator fatigue, thereby increasing the risk of operational errors.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A quick-release pull rod assembly includes a first pull rod and a second pull rod. A connecting part assembly is fixedly connected to one side of the first pull rod. A plug-in assembly is fixedly connected to the inner side of the connecting part assembly. An anti-detachment assembly is installed inside the connecting part assembly. The plug-in assembly includes an operating ring. A plug block is fixedly connected to the right side of the operating ring. The connecting part assembly includes a connecting shell. A slide, an expansion port, and a mounting groove are formed inside the connecting shell. A linear spring is fixedly connected to the right end of the slide. A shaft is fixedly connected to the inner side of the slide. The anti-detachment assembly includes a clamping block. A spring hole is formed inside the clamping block. A spring-loaded spring is fixedly connected to the inner side of the spring hole. A first arc surface and a second arc surface are formed at one end of the clamping block. The left side of the linear spring is fixedly connected to the right side of the plug block. The outer side of the shaft is fixedly connected to the inner side of the spring-loaded spring.
[0007] As a further optimization of this utility model, the operating ring is fixedly connected to an auxiliary handle at its top end, and a groove is provided on the inner side of the operating ring. The operating ring is sleeved on the outer side of the first pull rod through the groove, and a gap is provided between the outer side of the first pull rod and the inner side of the operating ring.
[0008] As a further optimization of this utility model, the insert block slides inside the slide rail, the left end of the insert block extends out of the outer side of the connecting shell, the number of insert blocks is the same as the number of slide rails, and one side of the insert block is attached to one side of the clamping block.
[0009] As a further optimization of this utility model, the first pull rod and the connecting shell are integrally fixed structures, the slide rail passes through the left end of the connecting shell, the expansion port passes through the right end of the connecting shell, the slide rail is connected to the mounting groove, the expansion port is connected to the mounting groove, and the opening shape of the expansion port is a cone.
[0010] As a further optimization of this utility model, the second pull rod includes a pull ring, a rod body is fixedly connected to the left side of the pull ring, a ball block is fixedly connected to the left side of the rod body, the ball block and the rod body are embedded in the interior of the mounting groove, and the left side of the ball block fits against the left side of the mounting groove.
[0011] As a further optimization of this utility model, the second arc surface and the first arc surface are both arc-shaped structures, and the outer side of the sphere is in contact with one side of the second arc surface.
[0012] As a further optimization of this utility model, the spring hole penetrates the inner side of the clamping block, the shaft is rotatably connected to the inner side of the spring hole, the right end structure of the clamping block is a chamfered structure, and a gap is provided between the multiple clamping blocks.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] In this invention, the device avoids the problem of pin hole alignment difficulties caused by limited space angle in traditional pull rod connection methods by setting a second pull rod, plug-in component and connecting component. Even when the pull rod is in an inclined or corner position, the connection and disassembly of the pull rod can be easily completed. This design significantly reduces the energy consumption and physical fatigue of the operator, while effectively reducing the risk of operational errors and improving the efficiency of pull rod assembly and disassembly and the safety of operation. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0016] Figure 2 This is a cross-sectional structural diagram of the connecting component of this utility model;
[0017] Figure 3 This is a schematic diagram of the anti-detachment component structure of this utility model;
[0018] Figure 4 This is a schematic diagram of the plug-in assembly structure of this utility model;
[0019] Figure 5 This is a schematic diagram of the connecting shell structure of this utility model;
[0020] Figure 6 This utility model Figure 5 A schematic diagram of the structure at point A;
[0021] Figure 7 This is a cross-sectional structural diagram of the anti-detachment component of this utility model.
[0022] In the diagram: 1. First pull rod;
[0023] 2. Second pull rod; 21. Pull ring; 22. Rod body; 23. Ball block;
[0024] 3. Plug-in assembly; 31. Operating ring; 32. Insert block; 33. Slot; 34. Auxiliary pull handle;
[0025] 4. Connecting assembly; 41. Connecting housing; 42. Slide rail; 43. Expansion port; 44. Mounting groove; 45. Linear spring; 46. Shaft column;
[0026] 5. Anti-detachment component; 51. Clamping block; 52. Spring hole; 53. Clockwork spring; 54. First arc surface; 55. Second arc surface. Detailed Implementation
[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0028] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.
[0029] Please see Figure 1-7 This utility model provides a technical solution:
[0030] A quick-release pull rod assembly includes a first pull rod 1 and a second pull rod 2. A connecting part assembly 4 is fixedly connected to one side of the first pull rod 1. A plug-in assembly 3 is fixedly connected to the inner side of the connecting part assembly 4. An anti-detachment assembly 5 is installed inside the connecting part assembly 4. The plug-in assembly 3 includes an operating ring 31. A plug block 32 is fixedly connected to the right side of the operating ring 31. The connecting part assembly 4 includes a connecting shell 41. A slide 42, an expansion port 43, and a mounting groove 44 are provided inside the connecting shell 41. A linear spring 45 is fixedly connected to the right end of the slide 42. A shaft post 46 is fixedly connected to the inner side of the slide 42. The anti-detachment assembly 5 includes a clamping block 51. A spring hole 52 is provided inside the clamping block 51. A spring spring 53 is fixedly connected to the inner side of the spring hole 52. A first arc surface 54 and a second arc surface 55 are provided at one end of the clamping block 51. The left side of the linear spring 45 is fixedly connected to the right side of the plug block 32. The outer side of the shaft post 46 is fixedly connected to the inner side of the spring spring 53.
[0031] As a further implementation of this solution, an auxiliary pull handle 34 is fixedly connected to the top of the operating ring 31. A groove 33 is opened on the inner side of the operating ring 31. The operating ring 31 is sleeved on the outer side of the first pull rod 1 through the groove 33. A gap is set between the outer side of the first pull rod 1 and the inner side of the operating ring 31. The insert block 32 slides on the inner side of the slide 42. The left end of the insert block 32 extends out of the outer side of the connecting shell 41. The number of insert blocks 32 is the same as the number of slides 42. One side of the insert block 32 fits against the side of the clamping block 51. Through the above settings, the device can achieve automatic alignment and positioning during operation. This sliding fit structure not only improves the accuracy and efficiency of the connection, but also reduces the errors caused by manual alignment by the operator, further improving the reliability of the pull rod connection and the safety of operation. By limiting the clamping block 51 through the insert block 32, the ball block 23 can be prevented from coming out of the mounting groove 44.
[0032] As a further implementation of this solution, the first pull rod 1 and the connecting shell 41 are integrally fixed structures. The slide 42 passes through the left end of the connecting shell 41, and the expansion port 43 passes through the right end of the connecting shell 41. The slide 42 is connected to the mounting groove 44, and the expansion port 43 is connected to the mounting groove 44. The opening shape of the expansion port 43 is conical. Through the above settings, the conical shape of the expansion port 43 design allows the pin to be guided and aligned more smoothly during the insertion process, reducing the alignment difficulties caused by the limited space angle. This structural design not only improves the accuracy of the pin insertion, but also reduces the energy consumption of the operator, while enhancing the overall stability and service life of the device.
[0033] As a further implementation of this solution, the second pull rod 2 includes a pull ring 21. A rod body 22 is fixedly connected to the left side of the pull ring 21, and a ball block 23 is fixedly connected to the left side of the rod body 22. The ball block 23 and the rod body 22 are embedded in the installation groove 44. The left side of the ball block 23 fits against the left side of the installation groove 44. The second arc surface 55 and the first arc surface 54 are both arc-shaped structures. The outer side of the ball block 23 fits against one side of the second arc surface 55. Through the above settings, the arc-shaped design of the second arc surface 55 and the first arc surface 54 enables a more stable limiting and guiding function during the connection of the second pull rod 2. This design improves the smoothness of the pin insertion and removal.
[0034] As a further implementation of this solution, the spring hole 52 penetrates the inner side of the clamping block 51, and the shaft column 46 is rotatably connected to the inner side of the spring hole 52. The right end structure of the clamping block 51 is a chamfered structure, and a gap is provided between multiple clamping blocks 51. Through the above settings, the chamfered design does not hinder the normal rotation of the clamping block 51. The arc-shaped right end structure and the gap setting further improve the adaptability and flexibility of the device, enabling the tie rod connection device to work stably in complex mechanical environments and reducing the risk of connection failure due to space limitations.
[0035] Workflow: When connecting the two levers, first push the auxiliary lever 34 towards the first lever 1. The auxiliary lever 34 drives the operating ring 31 and the insert block 32 to move to the left. The insert block 32 slides inside the slide rail 42. At the same time, the insert block 32 pulls the linear spring 45, causing it to elastically extend. The elastic force of the linear spring 45 serves to reset the insert block 32. When the insert block 32 moves away from the clamping block 51, the ball block 23 is then inserted into the mounting groove 44 through the expansion port 43. When ball block 23 contacts the first arc surface 54, it presses against clamping block 51, causing multiple clamping blocks 51 to rotate simultaneously. Clamping blocks 51 rotate about the shaft 46 via spring holes 52. At this time, clamping blocks 51 rotate in the right half of the slide rail 42. The rotation of clamping blocks 51 causes the spring spring 53 to deform. When the rod body 22 is inside the mounting groove 44, and ball block 23 moves away from the first arc surface 54, the clamping blocks 51 rotate under the torque of the spring spring 53. At this time, the second arc surface... When the auxiliary handle 34 is released, the ball block 32 moves to the right under the elastic force of the linear spring 45. At this point, the ball block 32 is in contact with the clamping block 51, preventing the clamping block 51 from rotating. The second arc surface 55 of the clamping block 51 prevents the ball block 23 from detaching from the mounting groove 44, thus completing the connection of the two pull rods. During disassembly, after pulling the auxiliary handle 34 to move the ball block 32 away from the clamping block 51, the second pull rod 2 can be directly disassembled. Pull out, the second arc surface 55 is an arc structure, and the clamping block 51 is squeezed by the ball block 23, so that the clamping block 51 rotates again, which facilitates the disassembly of the second pull rod 2. Based on the above principle, in the environment with limited space angle, the device avoids the dilemma of the traditional pin needing to be aligned with the pin hole and the operator's posture needs to be changed. Even if the pull rod is in an inclined state, the two pull rods can be easily connected. This operation method reduces the energy consumption of the operator, effectively reduces the risk of operation error, and improves the disassembly and assembly efficiency of the two pull rods.
[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A quick-release pull rod assembly, comprising a first pull rod (1) and a second pull rod (2), characterized in that: A connecting part assembly (4) is fixedly connected to one side of the first pull rod (1), a plug-in assembly (3) is fixedly connected to the inside of the connecting part assembly (4), and an anti-detachment assembly (5) is installed on the inside of the connecting part assembly (4). The plug-in assembly (3) includes an operating ring (31), and a plug block (32) is fixedly connected to the right side of the operating ring (31). The connecting part assembly (4) includes a connecting shell (41), and a slide (42), an expansion port (43), and a mounting groove (44) are provided on the inner side of the connecting shell (41). A linear spring (45) is fixedly connected to the right end of the slide (42), and a shaft column (46) is fixedly connected to the inner side of the slide (42). The anti-detachment assembly (5) includes a clamping block (51), and a spring hole (52) is provided on the inner side of the clamping block (51). A spring spring (53) is fixedly connected to the inner side of the spring hole (52). A first arc surface (54) and a second arc surface (55) are provided at one end of the clamping block (51). The left side of the linear spring (45) is fixedly connected to the right side of the insert block (32), and the outer side of the shaft (46) is fixedly connected to the inner side of the spring spring (53).
2. The quick-release tie rod assembly according to claim 1, characterized in that: An auxiliary handle (34) is fixedly connected to the top of the operating ring (31). A groove (33) is provided on the inner side of the operating ring (31). The operating ring (31) is sleeved on the outer side of the first pull rod (1) through the groove (33). There is a gap between the outer side of the first pull rod (1) and the inner side of the operating ring (31).
3. The quick-release tie rod assembly according to claim 1, characterized in that: The insert (32) slides on the inside of the slide (42), and the left end of the insert (32) extends out of the outside of the connecting shell (41). The number of inserts (32) is the same as the number of slides (42). One side of the insert (32) is attached to one side of the clamping block (51).
4. A quick-release tie rod assembly according to claim 1, characterized in that: The first pull rod (1) and the connecting shell (41) are integrally fixed structures. The slide (42) passes through the left end of the connecting shell (41), and the expansion port (43) passes through the right end of the connecting shell (41). The slide (42) is connected to the mounting groove (44), and the expansion port (43) is connected to the mounting groove (44). The opening shape of the expansion port (43) is a cone.
5. A quick-release tie rod assembly according to claim 1, characterized in that: The second pull rod (2) includes a pull ring (21), a rod body (22) is fixedly connected to the left side of the pull ring (21), a ball block (23) is fixedly connected to the left side of the rod body (22), the ball block (23) and the rod body (22) are embedded in the interior of the mounting groove (44), and the left side of the ball block (23) fits against the left side of the mounting groove (44).
6. A quick-release tie rod assembly according to claim 5, characterized in that: The second arc surface (55) and the first arc surface (54) are both arc-shaped structures, and the outer side of the ball block (23) is attached to one side of the second arc surface (55).
7. A quick-release tie rod assembly according to claim 1, characterized in that: The spring hole (52) penetrates the inner side of the clamping block (51), the shaft (46) is rotatably connected to the inner side of the spring hole (52), the right end structure of the clamping block (51) is a chamfered structure, and a gap is provided between the multiple clamping blocks (51).