Adjusting device for packing pressing sleeve

Abstract

The utility model discloses a filler pressing sleeve adjusting device which comprises a handle, two opposite insertion teeth are arranged at the front end of the handle, and the two insertion teeth can be inserted into two key grooves in a filler pressing sleeve respectively. A hollow liquid injection hole channel is formed in the gear shaper, an output port of the liquid injection hole channel is formed in the gear shaper, and an input port of the liquid injection hole channel can be connected with liquid injection equipment. A connector is arranged at an output port of the liquid injection hole channel, and the liquid injection hole channel is connected with liquid injection equipment through the connector. The liquid injection device is an elastic liquid bag, and a bag opening of the elastic liquid bag is correspondingly arranged on the connector in a sleeved mode. According to the utility model, the filler pressing sleeve can be conveniently adjusted to deal with the air leakage fault of the ball valve.

Description

Technical Field

[0001] This utility model relates to the field of valve maintenance technology, and in particular to a packing compression sleeve adjustment device. Background Technology

[0002] Ball valves play a crucial role in gas transmission and distribution systems. Their simple structure, tight and reliable operation, and ease of use make them widely applicable. However, after repeated use, the packing seal inside the ball valve core is prone to wear, leading to leakage or improper opening and closing. The packing gland, located between the valve stem and body, primarily functions to compact the packing and ensure the valve's seal. Therefore, when the packing wears out, it can be re-tightened by adjusting the packing gland; however, currently, there is no dedicated tool for adjusting the packing gland. Summary of the Invention

[0003] Purpose of the invention: In order to overcome the shortcomings of the existing technology, this utility model provides a packing compression sleeve adjustment device to facilitate the adjustment of the packing compression sleeve in order to deal with the air leakage fault of the ball valve.

[0004] Technical solution: To achieve the above objectives, the present invention provides a packing compression sleeve adjustment device, including a handle, the front end of which has two opposing inserts that can be inserted into two keyways on the packing compression sleeve; the inserts have hollow injection channels, the output port of the injection channels is on the inserts, and the input port of the injection channels can be connected to an injection device.

[0005] Furthermore, a connector is provided at the output port of the injection channel, and the injection channel is connected to the injection equipment through the connector.

[0006] Furthermore, the injection device is an elastic liquid bladder, and the opening of the elastic liquid bladder is fitted onto the connector.

[0007] Furthermore, the injection device includes an injection tube, one end of which is fitted onto the connector, and the other end of which is connected to a syringe containing liquid.

[0008] Furthermore, the outlet of the injection channel is located at the top of the insert tooth.

[0009] Furthermore, the insert tooth is divided into at least two sections from the tooth base to the tooth tip; each section of the insert tooth is square, and the cross-sectional area of ​​the insert tooth decreases gradually from the tooth base to the tooth tip.

[0010] Furthermore, at least one tooth is movable on the handle, making the spacing between the two teeth adjustable.

[0011] Furthermore, the two inserts are a fixed insert and a movable insert, the fixed insert is fixed to the front end of the handle, and the movable insert is mounted on the slide; the handle has a slide rail, which slides in conjunction with the slide; the slide and the handle each have an injection channel.

[0012] Beneficial effects: The beneficial effects of the packing compression sleeve adjustment device of this utility model are as follows:

[0013] 1) The two prongs on the handle can be inserted into the two keyways on the packing compression sleeve to tighten the packing compression sleeve; the spacing between the two prongs is adjustable to accommodate packing compression sleeves of different sizes.

[0014] 2) The insert has a hollow injection channel, through which soap water can be injected into the packing compression sleeve, making it easy to observe whether the ball valve is leaking air during the adjustment of the packing compression sleeve. Attached Figure Description

[0015] Appendix Figure 1 This is a schematic diagram of the overall structure of the adjusting device of this utility model;

[0016] Appendix Figure 2 This is a schematic diagram of the packing compression sleeve.

[0017] Appendix Figure 3 This is a schematic diagram of an elastic fluid bladder mounted on a connector in an injection channel. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings.

[0019] As attached Figures 1 to 3 The aforementioned packing compression sleeve adjusting device includes a handle 1, with two opposing insertion teeth 2 at the front end of the handle 1. The structure of the packing compression sleeve 3 is shown in the attached figure. Figure 2 As shown, the packing gland 3 is located between the valve stem and the valve body of the ball valve, and its main function is to ensure the sealing of the ball valve. When the ball rotates, the packing gland 3 compacts the packing, preventing it from leaking out of the valve body. Simultaneously, the packing gland 3 also supports the valve stem, ensuring its stability during rotation. The packing gland 3 has two symmetrical keyways 4. If the ball valve core experiences leakage, the two insert teeth 2 can be inserted into the two keyways 4 on the packing gland 3. At this time, the operator can turn the handle 1 to re-compact the packing gland 3 inside the ball valve, until the ball valve core no longer leaks.

[0020] When checking for air leakage in a ball valve, a common method is to apply soapy water to the valve. If bubbles are observed in the applied area, it indicates a leak. However, when adjusting the packing gland using this invention, the insert 2 may wipe away the soapy water in the area where the packing gland is located, making it impossible to observe bubbles and determine if the ball valve core is still leaking. Therefore, during the tightening of the packing gland, a certain amount of soapy water needs to be added to the area where the packing gland is located. However, since the insert 2 is inserted into the keyway 4 of the packing gland, adding soapy water requires first pulling the insert 2 out of the keyway 4 to allow the added soapy water to enter, which is cumbersome. Therefore, in this invention, the insert 2 has a hollow injection channel 5. The output port of the injection channel 5 is on the insert 2, and the input port of the injection channel 5 can be connected to an injection device. Thus, during the adjustment of the packing gland, soapy water can be directly added to the keyway 4 through the injection channel 5 without removing the insert 2, making operation more convenient.

[0021] Specifically, a connector 6 is provided at the output port of the injection channel 5, and the injection channel 5 is connected to the injection equipment through the connector 6. The output port of the injection channel 5 is located at the top of the insert 2.

[0022] One implementation, for example, is attached. Figure 3 As shown, the injection device is a rubber elastic bladder 7, with its opening fitted onto the connector 6. The elastic bladder 7 contains soapy water. Before using the adjusting device, the insert 2 is immersed in a container of soapy water. The elastic bladder 7 is then squeezed flat and released to draw the soapy water into it. While using the adjusting device to tighten the packing compression sleeve 3, the operator can squeeze the elastic bladder 7 to expel the soapy water. The squeezed-out soapy water is injected into the keyway 4 along the injection channel 5, thus replenishing the area where the packing compression sleeve 3 is located with soapy water. This allows for the determination of whether the ball valve is leaking during the adjustment of the packing compression sleeve.

[0023] In another embodiment, the injection device includes an injection tube, one end of which is fitted onto the connector 6, and the other end of which is connected to a syringe containing liquid. The syringe contains soapy water, which can be injected into the injection channel 5 through the syringe and the injection tube, and then the soapy water flows along the injection channel 5 into the keyway 4.

[0024] In practical applications, the spacing between the two keyways 4 on the packing compression sleeve 3 varies depending on the size of the ball valve. Therefore, at least one tooth 2 is movably mounted on the handle 1, making the spacing between the two teeth 2 adjustable, thus allowing the two teeth 2 to accommodate keyways 4 with different spacings. (See attached...) Figure 1In one embodiment shown, the two inserts 2 are a fixed insert 202 and a movable insert 201, respectively. The fixed insert 202 is fixed to the front end of the handle 1, and the movable insert 201 is mounted on the slide 8. The handle 1 has a slide rail 9 extending along its length. The slide rail 9 slides in conjunction with the slide 8. When the slide 8 slides on the slide rail 9, the distance between the movable insert 201 and the fixed insert 202 changes. The handle 1 also has an adjusting screw 10. The slide 8 has a threaded structure that mates with the adjusting screw 10. Rotating the adjusting screw 10 causes the slide 8 to slide on the slide rail 9, thereby adjusting the distance between the fixed insert 202 and the movable insert 201. Both the slide 8 and the handle 1 have independent injection channels 5, allowing the movable insert 201 and the fixed insert 202 to inject soapy water into the two keyways 4 respectively.

[0025] The insert 2 is divided into at least two sections from the bottom to the top of the tooth; each section of the insert 2 is square, and the cross-sectional area of ​​the insert 2 decreases from the bottom to the top of the tooth, so that the insert 2 can adapt to keyways 4 of different sizes.

[0026] Taking the connection 6 of the injection channel 5 as an example, when a ball valve core leaks air, the spacing of the two insert teeth 2 is adjusted according to the keyway 4 spacing of the ball valve packing compression sleeve 3, and soap water is drawn into the elastic liquid bladder 7. Then, the two insert teeth 2 are placed into the two keyways 4, and the handle 1 is rotated to tighten the packing compression sleeve 3 so that the packing compression sleeve 3 re-compacts the packing. During the rotation of the handle 1, soap water can be injected into the keyway 4 by squeezing the elastic liquid bladder 7 to replenish the soap water that was rubbed off by the insert teeth 2. By observing whether the soap water bubbles, it can be determined whether the adjusted ball valve core still leaks air.

[0027] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A packing compression sleeve adjusting device, characterized in that: Includes a handle (1), with two opposing inserts (2) at the front end of the handle (1), which can be inserted into two keyways (4) on the packing compression sleeve (3) respectively; the inserts (2) have hollow injection channels (5), the outlet of the injection channel (5) is on the inserts (2), and the inlet of the injection channel (5) can be connected to the injection equipment.

2. The packing compression sleeve adjusting device according to claim 1, characterized in that: A connector (6) is provided at the output port of the injection channel (5), and the injection channel (5) is connected to the injection equipment through the connector (6).

3. The packing compression sleeve adjusting device according to claim 2, characterized in that: The liquid injection device is an elastic liquid bladder (7), and the opening of the elastic liquid bladder (7) is fitted onto the connector (6).

4. The packing compression sleeve adjusting device according to claim 2, characterized in that: The liquid injection device includes a liquid injection tube, one end of which is fitted onto the connector (6), and the other end of which is connected to a syringe containing liquid.

5. The packing compression sleeve adjusting device according to claim 1, characterized in that: The outlet of the injection channel (5) is located at the top of the insert (2).

6. The packing compression sleeve adjusting device according to claim 1, characterized in that: The insert (2) is divided into at least two sections from the bottom to the top of the tooth; each section of insert (2) is square, and the cross-sectional area of ​​insert (2) decreases from the bottom to the top of the tooth.

7. The packing compression sleeve adjusting device according to claim 1, characterized in that: At least one tooth (2) is movably mounted on the handle (1), so that the distance between the two teeth (2) is adjustable.

8. The packing compression sleeve adjusting device according to claim 7, characterized in that: The two inserts (2) are a fixed insert (202) and a movable insert (201), respectively. The fixed insert (202) is fixed to the front end of the handle (1), and the movable insert (201) is installed on the slide (8). There is a slide rail (9) on the handle (1), and the slide rail (9) slides with the slide (8). There is an injection channel (5) in both the slide (8) and the handle (1).

Images