A PVDF non-invasive torque wrench for a converter valve

Abstract

The application discloses a kind of converter valve water pipe PVDF non-injury torque wrench, including torque wrench, the boss is equipped in the top of torque wrench, the interface is inserted in the boss, symmetrically equipped slide and limit rail on both sides, limit mechanism is slidably installed by limit rail, limit mechanism is inserted with joint to limit its movement;Limit mechanism contains connection outer storehouse and limit inner storehouse slidably arranged, linkage assembly is arranged between the two. Linkage assembly is locked by rack and pinion transmission to realize the linkage of limit inner storehouse and connection outer storehouse, cooperate spring reset and limit concave platform insertion, realize the radial and axial double limit and self-locking of joint. Torque wrench is equipped with controller to monitor torque in real time, to avoid over-tightening damage. The scheme can accurately control torque, prevent PVDF water pipe from being too tight to break or too loose to leak, joint replacement does not require tools, convenient operation, improve maintenance efficiency, suitable for safe operation of converter valve cooling system water pipe.

Description

Technical Field

[0001] This application belongs to the field of wrench tools, and specifically relates to a non-destructive torque wrench for PVDF water pipes of converter valves. Background Technology

[0002] As a core component of DC transmission systems, the reliability of the water pipe connections in the cooling system of converter valves directly affects the safe and stable operation of the equipment. PVDF (polyvinylidene fluoride) is widely used in the manufacture of cooling water pipes for converter valves due to its excellent corrosion resistance, high-temperature resistance, and mechanical strength. However, PVDF requires extremely precise torque control during installation and maintenance: overly tight connections can easily cause cracks in the pipe body or at the joints, leading to coolant leakage; overly loose connections may cause the joints to detach due to pressure fluctuations, and in severe cases, even trigger a converter valve shutdown.

[0003] Currently, the maintenance of converter valve water pipes generally uses ordinary torque wrenches or general-purpose tools, which has the following technical defects: First, although traditional torque wrenches can set torque values, they lack a dedicated limit protection structure for PVDF materials. In actual operation, they are prone to over-torque damage due to human error or slippage of the joint. Second, the connection between the joint and the wrench mostly relies on friction or a single groove for fixation. Under high torque operation, radial displacement or axial detachment is prone to occur, affecting the accuracy of torque transmission. Third, different specifications of water pipe interfaces require different models of connectors. When replacing connectors with existing tools, additional auxiliary tools are needed to remove clamps or screws, which is cumbersome and time-consuming, especially when working in a confined equipment compartment, where efficiency is extremely low. Utility Model Content

[0004] This application provides a non-damaging torque wrench for PVDF water pipes of a converter valve. By setting a linkage limit structure between the connector and the slide, it can achieve automatic locking and overload protection of the connector in the plugging state, and realize torque control, quick connector replacement and non-damaging torque wrench for PVDF material.

[0005] To achieve the above objectives, this application provides a non-damaging torque wrench for PVDF water pipes of a converter valve, including a torque wrench with a boss fixedly provided on the top of the torque wrench. A connector is opened on the central axis of the boss. A slide is symmetrically arranged through the boss and connected to the connector. Limit rails are opened on both sides of the slide rails. A limit mechanism is slidably provided through the limit rails. The limit mechanism is inserted into the connector to limit the movement of the connector within the connector.

[0006] The limiting mechanism includes a connecting outer compartment that is slidably disposed in the slide rail via a slide chamber. The slide chamber is fixedly disposed on both sides of the connecting outer compartment and has a through clearance groove. A limiting inner compartment is slidably disposed at one end of the connecting outer compartment near the insertion interface. A linkage component is provided between the connecting outer compartment and the limiting inner compartment.

[0007] In one embodiment, the linkage component includes a first rack fixedly disposed on the inner limit chamber, the first rack meshing with a gear, the gear being rotatably disposed on a vertical plate, the vertical plate being fixedly disposed on the limit rail via the clearance groove, the gear meshing with a second rack, and the second rack being fixedly disposed within the slide chamber.

[0008] In one embodiment, the limiting inner compartment is provided with a connecting plate corresponding to the first rack, and the connecting plate is connected to the first rack.

[0009] In one embodiment, a groove is provided through the connecting outer compartment, a sliding table is provided in the limiting inner compartment, the sliding table is slidably disposed in the groove, and a spring is provided between the sliding table and the groove.

[0010] In one embodiment, a limiting platform is provided on the slide, a limiting rail is provided inside the limiting rail, and the limiting platform is slidably disposed within the limiting rail.

[0011] In one embodiment, a limiting recess is provided on the connector, and the limiting inner cavity is inserted into the recess.

[0012] In one embodiment, an arc-shaped inverted platform is formed at the end of the limiting inner compartment away from the connecting outer compartment.

[0013] In one embodiment, the torque wrench is provided with a controller.

[0014] Compared with the prior art, the beneficial effects of this application are:

[0015] The limiting mechanism design achieves dual radial and axial limiting of the connector. Through the cooperation of the linkage component and the spring, the locking action is automatically completed when the connector is inserted, ensuring a firm and reliable connection and preventing the connector from loosening or falling off during use. No additional tools are needed when replacing the connector; a single person can quickly detach the limiting inner compartment by pressing the outer connecting compartment. The operation is convenient and efficient, significantly improving the efficiency of on-site maintenance and reducing operational complexity.

[0016] The linkage mechanism between the vertical plate and the gear rack ensures smooth and stable installation and disassembly of the connector. The arc-shaped inverted platform design further optimizes the smoothness of connector insertion and removal. Simultaneously, the sliding cooperation between the slide and the limit rail ensures the precision of the limit mechanism's movement, effectively improving the tool's service life and reliability. Furthermore, the controller settings facilitate digital management of torque parameters, allowing for flexible adjustment of torque values ​​according to different PVDF water pipe specifications. This enhances the tool's versatility and applicability, providing a safe, efficient, and convenient solution for the maintenance of converter valve water pipes. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This application provides an overall schematic diagram of a non-damaging torque wrench for a converter valve water pipe PVDF.

[0019] Figure 2 A schematic diagram of the boss of a non-damaging torque wrench for a PVDF water pipe converter valve provided in this application;

[0020] Figure 3 This application provides a cross-sectional schematic diagram of the boss of a PVDF non-destructive torque wrench for a converter valve water pipe;

[0021] Figure 4 Provided for this application Figure 3 Enlarged view of point A in the middle;

[0022] Figure 5 This application provides a schematic diagram of the connection outer chamber of a PVDF non-damaging torque wrench for a converter valve water pipe.

[0023] Figure 6 A schematic diagram of the limiting inner chamber of a PVDF non-damaging torque wrench for a converter valve water pipe provided in this application;

[0024] Figure 7 This application provides a schematic diagram of the connector for a non-destructive torque wrench for a PVDF converter valve water pipe.

[0025] Explanation of reference numerals in the attached drawings: 1. Torque wrench; 2. Controller; 3. Boss; 4. Connector; 5. Limiting mechanism; 51. Connecting outer compartment; 52. Limiting inner compartment; 53. Slide groove; 54. Slide table; 55. First rack; 57. Second rack; 58. Gear; 59. Spring; 510. Slide chamber; 511. Clearance groove; 512. Connecting plate; 6. Slide rail; 7. Limiting rail; 8. Vertical plate; 9. Insertion interface; 10. Limiting recess. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application are described clearly and completely below. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are also within the scope of protection of this application.

[0027] See Figures 1 to 7 As shown, this application provides a non-damaging torque wrench for PVDF water pipes of a converter valve, including a torque wrench 1. A boss 3 is fixedly provided on the top of the torque wrench 1. An insertion interface 9 is opened on the central axis of the boss 3. A slide rail 6 is symmetrically arranged through the insertion interface 9 and the boss 3. Limiting rails 7 are opened on both sides of the slide rails 6. A limiting mechanism 5 is slidably provided through the limiting rails 7. The limiting mechanism 5 is inserted into the connector 4 and is used to limit the movement of the connector 4 within the insertion interface 9.

[0028] When replacing or repairing the converter valve, select the matching connector 4 according to the actual working conditions and insert it into the insertion interface 9 of the boss 3. The limiting mechanism 5 automatically locks the connector 4 through the cooperation of the slide 6 and the limiting rail 7 to ensure a stable connection. Set the torque value of the torque wrench 1 according to actual needs to avoid damage to the PVDF water pipe due to overtightening or loosening.

[0029] The limiting mechanism 5 includes a connecting outer compartment 51 slidably disposed in the slide rail 6 via a slide 510. The slide 510 is fixedly disposed on both sides of the connecting outer compartment 51 and has a through clearance groove 511. The connecting outer compartment 51 has a limiting inner compartment 52 slidably disposed at one end near the insertion interface 9. A linkage component is provided between the connecting outer compartment 51 and the limiting inner compartment 52.

[0030] When installing connector 4, insert it into interface 9. During the insertion process, the bottom of connector 4 pushes the limiting inner chamber 52 to slide along the slide rail 6 into the connecting outer chamber 51. As the limiting inner chamber 52 slides, the linkage component drives the connecting outer chamber 51 to move along the slide rail 6 towards interface 9. When connector 4 is fully inserted, the limiting inner chamber 52 engages with connector 4, thereby achieving both radial and axial limiting of connector 4 and ensuring connection stability.

[0031] When disassembling connector 4, press the outer connecting chamber 51 inward. As the outer connecting chamber 51 slides inward, the linkage component drives the limiting inner chamber 52 to slide inward along the slide rail 6, causing the limiting inner chamber 52 to disengage from the slot of connector 4. Then, pull connector 4 out axially to complete the disassembly.

[0032] In summary, the entire process of disassembling and replacing connector 4 requires no tools and can be completed quickly by a single person, which greatly improves operational efficiency and safety, and effectively reduces the complexity of on-site maintenance.

[0033] It should be noted that a buffer pad is provided at the contact point between connector 4 and the converter valve to prevent damage to the equipment surface caused by hard contact.

[0034] Optionally, the linkage component includes a first rack 55 fixedly mounted on the limiting inner compartment 52, the first rack 55 meshing with a gear 58, the gear 58 being rotatably mounted on a vertical plate 8, the vertical plate 8 being fixedly mounted on the limiting rail 7 via the clearance groove 511, the gear 58 meshing with a second rack 57, the second rack 57 being fixedly mounted inside the slide 510.

[0035] In this embodiment, when installing the connector 4, the inner limiting chamber 52 slides into the outer connecting chamber 51, causing the first rack 55 to move synchronously. Power is transmitted through the rotation of the gear 58, causing the second rack 57 to drive the sliding chamber 510 to slide along the limiting rail 7 towards the insertion interface 9, thereby pushing the outer connecting chamber 51 forward and achieving overall linkage locking of the limiting mechanism 5. When the connector 4 is fully inserted, the inner limiting chamber 52, under the action of the elastic reset member, is engaged in the annular groove of the connector 4, forming axial and radial double constraints to ensure a firm and reliable connection.

[0036] When disassembling connector 4, press the outer connecting chamber 51 inward. The second rack 57 drives the gear 58 to rotate in the opposite direction, which in turn drives the first rack 55 and the limiting inner chamber 52 to retract synchronously, disengaging it from the annular groove of connector 4 and releasing the radial and axial constraints. At this point, connector 4 can be directly pulled out along the axial direction of the insertion interface 9. The operation is simple and quick, requiring no auxiliary tools, and can be completed independently by a single person. The entire disassembly process is smooth and the structure is responsive, effectively avoiding the cumbersome disassembly and assembly problems of traditional threaded connections. It significantly improves the convenience of equipment maintenance and work efficiency, and is especially suitable for applications with high-frequency disassembly and assembly or limited space.

[0037] Optionally, the limiting inner compartment 52 is provided with a connecting plate 512 corresponding to the first rack 55, and the connecting plate 512 is connected to the first rack 55. The connecting plate 512 is fixedly connected to the first rack 55 to ensure the stability and reliability of power transmission.

[0038] Optionally, a groove 53 is provided through the connecting outer compartment 51, and a slide table 54 is provided in the limiting inner compartment 52. The slide table 54 is slidably disposed in the groove 53, and a spring 59 is provided between the slide table 54 and the groove 53.

[0039] In this embodiment, the sliding groove 53 and the sliding table 54 work together to achieve smooth sliding of the inner limiting chamber 52 within the connecting outer chamber 51. The spring 59 provides elastic restoring force, ensuring that the inner limiting chamber 52 can quickly rebound to the locked position after disengaging from the annular groove of the connector 4. When the connector 4 is inserted into place, the inner limiting chamber 52 automatically engages with the annular groove under the action of the compressed spring, forming a reliable lock. During disassembly, pressing the connecting outer chamber 51 causes the inner limiting chamber 52 to retract against the spring force through the linkage component, releasing the locked state. The entire structure operates smoothly and has strong self-locking properties, requiring no tool intervention, greatly improving the efficiency of connection and separation operations, and ensuring safety and reliability during use.

[0040] Optionally, a limiting platform is provided on the slide 510, and a limiting rail is provided inside the limiting rail 7. The limiting platform is slidably disposed within the limiting rail. The movement trajectory of the slide 510 is constrained by the cooperation of the limiting platform and the limiting rail, preventing the slide 510 from sliding excessively and falling off the limiting rail 7, and ensuring that the slide 510 runs smoothly within a preset stroke.

[0041] Optionally, the connector 4 has a limiting recess 10, and the limiting inner chamber 52 is inserted into the recess 10. When the connector 4 is inserted into place, the limiting inner chamber 52 is engaged in the limiting recess 10, thereby completing the docking and realizing a self-locking function, effectively preventing accidental dislodgement due to vibration or external force.

[0042] Optionally, the inner limiting chamber 52 is provided with an arc-shaped inverted platform at the end away from the outer connecting chamber 51. The arc-shaped inverted platform facilitates the smooth sliding of the connector 4 into the limiting recess 10, improving the smoothness and centering of the insertion operation.

[0043] Optionally, the torque wrench 1 is equipped with a controller 2. This controller is used to monitor the angle and torque changes during the torque application process in real time, avoiding excessive force that could damage the joint or cause insufficient tightening, ensuring that each assembly meets the preset standard, and improving operational accuracy and consistency.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A non-damaging torque wrench for PVDF water pipes of a converter valve, characterized in that: The device includes a torque wrench (1), a boss (3) is fixedly provided on the top of the torque wrench (1), an insertion interface (9) is opened on the central axis of the boss (3), a slide rail (6) is symmetrically arranged through the insertion interface (9) and the boss (3), and a limit rail (7) is opened on both sides of the slide rail (6), and a limit mechanism (5) is slidably provided through the limit rail (7), and the limit mechanism (5) is inserted into the connector (4) to limit the movement of the connector (4) within the insertion interface (9); The limiting mechanism (5) includes a connecting outer compartment (51) that is slidably disposed in the slide rail (6) via a slide (510). The slide (510) is fixedly disposed on both sides of the connecting outer compartment (51) and has a through clearance groove (511). The connecting outer compartment (51) has a limiting inner compartment (52) slidably disposed at one end near the insertion interface (9). A linkage component is provided between the connecting outer compartment (51) and the limiting inner compartment (52).

2. The non-damaging torque wrench for PVDF water pipes of a converter valve according to claim 1, characterized in that: The linkage component includes a first rack (55) fixedly mounted on the limiting inner compartment (52), the first rack (55) meshing with a gear (58), the gear (58) being rotatably mounted on a vertical plate (8), the vertical plate (8) being fixedly mounted on the limiting rail (7) via the clearance groove (511), the gear (58) meshing with a second rack (57), and the second rack (57) being fixedly mounted inside the slide (510).

3. The non-damaging torque wrench for PVDF water pipes of a converter valve according to claim 2, characterized in that: The limiting inner compartment (52) is provided with a connecting plate (512) corresponding to the first rack (55), and the connecting plate (512) is connected to the first rack (55).

4. The non-damaging torque wrench for PVDF water pipes of a converter valve according to claim 1, characterized in that: A groove (53) is provided through the connecting outer compartment (51), and a slide table (54) is provided in the limiting inner compartment (52). The slide table (54) is slidably disposed in the groove (53), and a spring (59) is provided between the slide table (54) and the groove (53).

5. The non-damaging torque wrench for PVDF water pipes of a converter valve according to claim 1, characterized in that: The slide (510) is provided with a limiting platform, and the limiting rail (7) is provided with a limiting rail. The limiting platform is slidably disposed within the limiting rail.

6. The non-damaging torque wrench for PVDF water pipes of a converter valve according to claim 1, characterized in that: The connector (4) has a limiting recess (10) and the limiting inner chamber (52) is inserted into the recess (10).

7. The non-damaging torque wrench for PVDF water pipes of a converter valve according to claim 1, characterized in that: An arc-shaped inverted platform is provided at the end of the limiting inner compartment (52) away from the connecting outer compartment (51).

8. A non-damaging torque wrench for PVDF water pipes of a converter valve according to any one of claims 1-7, characterized in that: The torque wrench (1) is equipped with a controller (2).

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