A valve gland locknut opening tool

Abstract

The utility model discloses a valve gland locking nut opening tool relates to valve gland locking nut technical field, including the adjusting frame, the inside of adjusting frame is provided with the adjusting cavity, and the adjusting assembly is installed in the adjusting cavity, and the adjusting assembly includes the two -way threaded rod, and the two -way threaded rod rotatory mounting is in the adjusting cavity, and the both ends spiral of two -way threaded rod all spiral connection have moved the frame, and the both ends of movable frame all are seted up with the rotary groove, and the connecting rod rotatory mounting has in the rotary groove, and the connecting rod of movable frame is connected with the both ends of two -way threaded rod and is set up mutually symmetry, and the connecting rod is rotatably connected with the connecting arm, and the connecting arm fixed mounting is in the one side of mounting frame, and the torsion bar is installed in the mounting frame, and the torsion bar is vertical and is parallel to the adjusting frame and sets up. The utility model discloses when two -way threaded rod rotates, and movable frame will do linear motion in the adjusting cavity along threaded rod, thereby promotes the mounting frame and the torsion bar to move in translation to adapt the nut size, and keep its vertical state simultaneously, avoid appearing the inclination.

Description

Technical Field

[0001] This utility model relates to the technical field of valve cover locking nuts, specifically a valve cover locking nut opening tool. Background Technology

[0002] A valve gland lock nut is a nut used to secure a valve gland. The valve gland is an important component of a valve, located between the valve body and the valve cover, used to secure internal valve parts such as the valve disc and valve seat. The function of the valve gland lock nut is to tighten it, ensuring a tight connection between the valve gland and the valve body, guaranteeing the valve's sealing performance and operational stability. It provides sufficient pressure to firmly engage the valve disc and valve seat, preventing leakage and other unwanted movement; therefore, this type of valve is widely used in oil depots. The tool for opening a valve gland lock nut is typically a wrench or similar tool used to tighten or loosen the lock nut on the valve gland. Because lock nuts are usually small and difficult to reach, specially designed tools provide better maneuverability and convenience.

[0003] Chinese utility model patent application number 202322370871.X provides a valve gland locking nut opening tool. Through the cooperation of structures such as steering knuckle, torsion bar and universal buckle, it makes it easy for operators to remove the valve locking nut, prevents valve damage during disassembly, reduces labor intensity, reduces the number of operators required, and improves work efficiency.

[0004] However, during the use of the above equipment, it was found that the torsion bar in the equipment rotates around the steering knuckle. In order for the universal buckle to be accurately inserted into the positioning hole of the locking nut, it is necessary to adjust the opening and closing angle of the torsion bar to adapt to nuts of different sizes. After adjustment, the torsion bar will be in an inclined state, and its axis is not consistent with the axis of the positioning hole, which will affect the disassembly or tightening effect. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a valve cover locking nut opening tool, which solves the problem mentioned in the background technology that the torsion bar will be in an inclined state after adjustment, and its axis will not be consistent with the axis of the positioning hole, which will affect the disassembly or tightening effect.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a valve cover locking nut opening tool, comprising an adjusting frame, an adjusting cavity inside the adjusting frame, an adjusting assembly installed in the adjusting cavity, the adjusting assembly including a bidirectional threaded rod, the bidirectional threaded rod being rotatably installed in the adjusting cavity, a movable frame being helically connected to both ends of the bidirectional threaded rod, a rotating groove being provided at both ends of the movable frame, a connecting rod being rotatably installed in the rotating groove, the connecting rods connected to the movable frames at both ends of the bidirectional threaded rod being symmetrically arranged, the connecting rods being rotatably connected to a connecting arm, the connecting arm being fixedly installed on one side of a mounting frame, a torsion bar being installed in the mounting frame, the torsion bar being vertical and parallel to the adjusting frame.

[0007] Preferably, the mounting bracket has an n-shaped cross-section, and a mounting groove is provided on the inner side of the mounting bracket.

[0008] Preferably, the torsion bar has a mounting rod at its top end, the mounting rod is adapted to the mounting groove, and the mounting rod is installed in the mounting groove by bolts.

[0009] Preferably, the width of the movable frame is adapted to the width of the adjustment cavity.

[0010] Preferably, the top of the adjustment frame is provided with a knob, which is connected to a bidirectional threaded rod.

[0011] Preferably, a rotating frame is fixedly provided on both sides of the top of the adjusting frame, a rotating block is hinged in the rotating frame, and a handle is fixedly provided at one end of the rotating block.

[0012] This utility model provides a tool for opening valve gland locking nuts. It has the following advantages: (1) When the bidirectional threaded rod rotates, the moving frame will move linearly along the threaded rod in the adjusting cavity, thereby pushing the mounting frame and the torsion rod to translate to adapt to the nut size, while maintaining its vertical state and avoiding tilting.

[0013] (2) The mounting bracket of this utility model has an inner mounting groove, and the top of the torsion bar is provided with a mounting rod that matches the mounting groove and is fixed by bolts. This makes the installation and disassembly of the torsion bar more convenient. When the torsion bar is damaged or needs to be replaced with a torsion bar of a different specification, simply unscrew the bolts to remove the torsion bar from the mounting groove, replace it, and then retighten the bolts to complete the installation, which helps to improve the maintenance efficiency of the tool. Attached Figure Description

[0014] Figure 1 This is a diagram showing the overall structure of the present utility model; Figure 2 This utility model Figure 1Diagram showing the structure of the central adjustment component; Figure 3 This utility model Figure 1 Structural diagram of the central rotating frame; Figure 4 This utility model Figure 1 Structural diagram of the mounting bracket.

[0015] In the diagram, 1 is the adjustment frame; 11 is the adjustment chamber; and 12 is the knob. 2. Torsion bar; 21. Mounting rod; 3. Mounting bracket; 31. Bolt; 32. Mounting slot; 4. Rotating frame; 41. Rotating block; 42. Hand lever; 5. Adjustment assembly; 51. Bidirectional threaded rod; 52. Moving frame; 53. Rotating groove; 54. Connecting rod; 55. Connecting arm. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0017] Example 1: Please see Figures 1-4 This utility model provides a valve cover locking nut opening tool, including an adjusting frame 1, an adjusting cavity 11 inside the adjusting frame 1, an adjusting component 5 installed in the adjusting cavity 11, an adjusting component 5 including a bidirectional threaded rod 51, the bidirectional threaded rod 51 being rotatably installed in the adjusting cavity 11, a movable frame 52 being screwed to both ends of the bidirectional threaded rod 51, a rotating groove 53 being opened at both ends of the movable frame 52, a connecting rod 54 being rotatably installed in the rotating groove 53, the connecting rods 54 connected to the movable frames 52 at both ends of the bidirectional threaded rod 51 being symmetrically arranged, the connecting rods 54 being rotatably connected to a connecting arm 55, the connecting arm 55 being fixedly installed on one side of a mounting frame 3, a torsion bar 2 being installed in the mounting frame 3, the torsion bar 2 being vertical and parallel to the adjusting frame 1; The mounting bracket 3 has an n-shaped cross section, and a mounting groove 32 is provided on the inner side of the mounting bracket 3; The top of the torsion bar 2 is provided with a mounting rod 21, which is adapted to the mounting groove 32. The mounting rod 21 is installed in the mounting groove 32 by bolts 31. The width of the movable frame 52 is adapted to the width of the adjustment cavity 11; A knob 12 is provided on the top of the adjustment frame 1, and the knob 12 is connected to the bidirectional threaded rod 51; A rotating frame 4 is fixedly installed on both sides of the top of the adjusting frame 1. A rotating block 41 is hinged in the rotating frame 4, and a handle 42 is fixedly installed at one end of the rotating block 41.

[0018] Specifically, rotating the knob 12 on the top of the adjusting frame 1 causes the bidirectional threaded rod 51 connected to it to rotate. Since the threads at both ends of the bidirectional threaded rod 51 are opposite in direction and both ends are connected to the moving frame 52, when the bidirectional threaded rod 51 rotates, the two moving frames 52 will move in a straight line relative to or away from each other along the adjusting cavity 11. Under the action of the connecting arm 55 and the mounting frame 3, the connecting rod 54 in the rotating groove 53 at both ends of the moving frame 52 will rotate with the movement of the moving frame 52. The connecting rod 54 is rotatably connected to the connecting arm 55 on one side of the mounting frame 3, thereby driving the mounting frame 3 and the torsion rod 2 on it to move. The position of the torsion rod 2 can be adjusted according to the size of the locking nut so that the torsion rod 2 can be aligned with the positioning hole of the locking nut. After inserting the torsion rod 2 into the positioning hole of the locking nut, hold the handle 42 and rotate it. The mounting frame 3 drives the torsion rod 2 to rotate. The torque is transmitted by the torsion rod 2 to achieve the tightening or loosening of the locking nut. Because the connecting rods 54 are symmetrically arranged, when the moving frame 52 moves, the rotation of the connecting rods 54 can push the mounting frame 3 and the torsion bar 2 to translate, thereby ensuring that the torsion bar 2 always remains vertical, thus ensuring that its axis is consistent with the axis of the positioning hole, and ensuring the efficiency of tightening and loosening the locking nut. The mounting rod 21 at the top of the torsion bar 2 mates with the mounting slot 32 of the mounting bracket 3, allowing for a detachable connection between the torsion bar 2 and the mounting bracket 3. When the torsion bar 2 becomes worn, damaged, or needs to be replaced with a different specification to meet different work requirements, it can be easily replaced by removing the bolt 31, improving the tool's versatility and maintainability. The handle 42 and the rotating block 41 can be rotated and stored, allowing the handle 42 to be rotated to a more compact position, reducing the overall space occupied by the tool and making it convenient for storage.

[0019] Working principle: Based on the size of the valve cover locking nut, rotate the knob 12 on the top of the adjusting bracket 1. The knob 12 drives the bidirectional threaded rod 51 to rotate. Since the threads at both ends of the bidirectional threaded rod 51 rotate in opposite directions, the two movable brackets 52, which are helically connected to it, will move in a straight line along the adjusting cavity 11, either in opposite directions. When the movable brackets 52 move, the connecting rods 54 in their rotating slots 53 at both ends will rotate accordingly. Because the connecting rods 54 are rotatably connected to the connecting arm 55 on one side of the mounting bracket 3, the rotation of the connecting rods 54 will cause the mounting bracket 3 and its torsion bar 2 to translate. Insert the adjusted torque rod 2 into the positioning hole of the locking nut, grasp the handle 42 and rotate it. The handle 42, through the cooperation of the rotating block 41 and the rotating frame 4, drives the mounting frame 3 to rotate, which in turn drives the torque rod 2 to rotate. The torque rod 2 is used to transmit torque to achieve the tightening or loosening of the valve cover locking nut; After use, rotate the handle 42 and rotating block 41 to store them, so that the handle 42 is in a more compact position, reducing the overall space occupied by the tool and making it convenient for storage. If the torsion bar 2 is worn, damaged, or needs to be replaced with a different specification of torsion bar 2, the mounting rod 21 can be removed from the mounting slot 32 by removing the bolts 31 on the mounting bracket 3 for replacement.

[0020] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0021] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A valve cover locking nut opening tool, comprising an adjusting frame (1), characterized in that: The adjustment frame (1) has an adjustment cavity (11) inside. An adjustment component (5) is installed in the adjustment cavity (11). The adjustment component (5) includes a bidirectional threaded rod (51). The bidirectional threaded rod (51) is rotatably installed in the adjustment cavity (11). A movable frame (52) is screwed onto both ends of the bidirectional threaded rod (51). A rotating groove (53) is opened at both ends of the movable frame (52). A connecting rod (54) is rotatably installed in the rotating groove (53). The connecting rods (54) connected to the movable frames (52) at both ends of the bidirectional threaded rod (51) are symmetrically arranged. The connecting rod (54) is rotatably connected to the connecting arm (55). The connecting arm (55) is fixedly installed on one side of the mounting frame (3). A torsion bar (2) is installed in the mounting frame (3). The torsion bar (2) is vertical and parallel to the adjustment frame (1).

2. The valve cover locking nut opening tool according to claim 1, characterized in that: The mounting bracket (3) has an n-shaped cross section, and the inner side of the mounting bracket (3) is provided with a mounting groove (32).

3. The valve cover locking nut opening tool according to claim 2, characterized in that: The torsion bar (2) is provided with a mounting rod (21) at its top end. The mounting rod (21) is adapted to the mounting groove (32). The mounting rod (21) is installed in the mounting groove (32) by bolts (31).

4. The valve cover locking nut opening tool according to claim 1, characterized in that: The width of the movable frame (52) is adapted to the width of the adjustment cavity (11).

5. The valve cover locking nut opening tool according to claim 1, characterized in that: The top of the adjustment frame (1) is provided with a knob (12), which is connected to a bidirectional threaded rod (51).

6. The valve gland locking nut opening tool according to claim 1, characterized in that: The top two sides of the adjustment frame (1) are fixedly provided with rotating frames (4), and rotating blocks (41) are hinged in the rotating frames (4). A handle (42) is fixedly provided at one end of the rotating blocks (41).

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