Device convenient for replacing valve filler on site

Abstract

The utility model relates to a device convenient for replacing valve packing on site, which comprises a fixed cylinder, a pair of material taking pliers is arranged at the top end of the fixed cylinder, one pliers head of the material taking pliers is fixedly connected with the top end of the fixed cylinder, and the other pliers head of the material taking pliers is connected with a handle. Grooves corresponding to packing nuts in different shapes are formed in the left side and the right side of the circular wrench respectively, a through hole allowing a screw part of a packing bolt to penetrate through is formed between the two grooves, a cavity is formed in the fixing cylinder and used for containing packing, an opening leading to the cavity is formed in the side face of the fixing cylinder, and a sealing door is hinged to the opening. And a locking structure is arranged at the closed part of the sealing door and the opening. According to the utility model, the operations of dismounting the packing gland, taking away the old packing and putting in the new packing can be conveniently completed, and the packing operation efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of valve packing, in particular to a device for facilitating on-site replacement of valve packing. Background Art

[0002] Valve packing is a material that is tightly filled on the sealing surface of valves and other equipment. It ensures the sealing of the valve during the switching process by filling the gap between the valve stem and the valve. The switching of the valve will cause wear of the valve packing. As the use time increases, the valve sealing will gradually decrease. Therefore, the valve packing needs to be replaced in time to ensure adequate sealing.

[0003] Valve packing replacement operations generally involve the installation and removal of the packing gland and the replacement of the old packing with the new one. These operations require a variety of tools to assist in the work, and the tools must be replaced frequently. In addition, the new packing is usually stored in a special container or package, which is not at the user's fingertips. It takes extra time to get the new packing. The above two inconveniences reduce the efficiency of valve packing replacement operations. Utility Model Content

[0004] The utility model aims to provide a device for facilitating on-site replacement of valve packing, by means of which the operations of removing the packing gland, taking out the old packing and inserting the new packing can be conveniently completed, thereby improving the packing operation efficiency.

[0005] The technical solution of the utility model is as follows:

[0006] The cam is secured to the top of the valve body with a secure grip so that the cam can be tightened to the cam face for locking the valve body into position relative to the top of the valve body.

[0007] Preferably, the locking structure includes a slot and a buckle, the closed part of the sealing door is provided with a buckle, and the closed part of the opening is provided with a slot corresponding to the buckle, and when the sealing door covers the opening, the buckle is snapped into the slot.

[0008] Preferably, the cross-sectional shape of one of the grooves of the circular wrench is a regular hexagon and the cross-sectional shape of the other groove is a regular octagon.

[0009] Preferably, the handle is provided with an anti-slip cover.

[0010] Preferably, the fixing cylinder is cylindrical in shape, and a non-slip pad is provided on the side of the fixing cylinder.

[0011] The utility model has the following beneficial technical effects:

[0012] By using a round wrench, a material removal pliers and a cavity together, the user can easily complete the operations of removing the packing cover, removing the old packing and inserting the new packing. There is no need to frequently change tools and waste extra time to get the new packing, which saves operation time and improves the efficiency of valve packing replacement operations; when replacing the valve packing, the user first uses a round wrench to turn down the packing nut, thereby removing the packing bolt separated from the packing nut, and then removes the packing cover that has lost the packing bolt and packing nut, exposing the old packing, and then uses the material removal pliers to clamp out the old packing. After cleaning the old packing, open the sealing door and take out the new packing from the cavity. After putting the new packing, replace the packing cover, replace the packing bolt and packing nut, tighten the packing nut, re-fix the packing cover, and complete the valve packing replacement operation; there are two grooves of different shapes on the round wrench to adapt to packing nuts of different shapes, which expands the scope of application. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The technical solution of the utility model will be further described below in conjunction with the accompanying drawings.

[0014] Attachment Figure 1 It is the main view of the utility model.

[0015] Attachment Figure 2 This is a cross-sectional view from the main perspective of the present invention.

[0016] Attachment Figure 3 It is a side view of the present utility model.

[0017] In the figure: 1-fixing cylinder, 2-feeding pliers, 3-handle, 4-round wrench, 5-groove, 6-through hole, 7-cavity, 8-opening, 9-sealing door, 10-locking structure, 11-slot, 12-buckle, 13-anti-slip sleeve, 14-anti-slip pad. DETAILED DESCRIPTION

[0018] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0019] Example:

[0020] like Figures 1 to 3As shown, this embodiment provides a device for facilitating on-site replacement of valve packing, including a fixed cylinder 1, a top end of the fixed cylinder 1 is provided with a material removal clamp 2 for clamping out old packing, one clamp head of the material removal clamp 2 is fixedly connected to the top end of the fixed cylinder 1 and the other clamp head is connected to a handle 3, a bottom end of the fixed cylinder 1 is provided with a circular wrench 4, the circular wrench 4 is used to screw the packing nut that matches the packing bolt on the packing gland, the left and right sides of the circular wrench 4 are respectively provided with a groove 5 corresponding to a packing nut of different shapes, a through hole 6 for the screw portion of the packing bolt to pass through is provided between the two grooves 5, the center axes of the two grooves 5 and the through hole 6 coincide, a cavity 7 is provided inside the fixed cylinder 1, the cavity 7 is used to place packing, an opening 8 leading to the cavity 7 is provided on the side of the fixed cylinder 1, a sealing door 9 is hinged on the opening 8, and a locking structure 10 is provided at the closing position of the sealing door 9 and the opening 8, and the locking structure 10 is used to control whether the sealing door 9 is tightly sealed on the opening 8.

[0021] By using the circular wrench 4, the material removal pliers 2 and the cavity 7 together, the user can easily complete the operations of removing the packing cover, taking out the old packing and inserting the new packing, without frequently changing tools and consuming extra time to take out the new packing, saving operation time and improving the efficiency of the valve packing replacement operation; when replacing the valve packing, the user first uses the circular wrench 4 to turn down the packing nut, thereby removing the packing bolt separated from the packing nut, and then removes the packing cover that has lost the packing bolt and the packing nut, so that the old packing is exposed to the outside, and then uses the material removal pliers 2 to clamp out the old packing. After cleaning the old packing, open the sealing door 9 and take out the new packing from the cavity 7. After putting the new packing, replace the packing cover, replace the packing bolt and the packing nut, tighten the packing nut, and re-fix the packing cover to complete the valve packing replacement operation; the circular wrench 4 is provided with two grooves 5 of different shapes for adapting to packing nuts of different shapes, which expands the scope of application.

[0022] Specifically, when twisting the packing nut, the role of the fixing tube 1 is similar to the handle of a traditional wrench. The user holds the fixing tube 1 and puts the circular wrench 4 on the packing nut in a manner that the groove 5 of the appropriate shape is aligned with the packing nut. At this time, the screw portion of the packing bolt passes through the circular wrench 4 through the through hole 6 and the groove 5 on the other side. Then the user pushes the fixing tube 1 from the side to allow the fixing tube 1 to rotate around the packing bolt to twist the packing nut. When the fixing tube 1 is blocked, the circular wrench 4 is removed from the packing nut, and the fixing tube 1 is moved back to its original position to regain space to rotate around the packing bolt. Then the circular wrench 4 is put back on the packing nut and continues to twist. This operation is repeated until the packing nut is removed or tightened.

[0023] Specifically, when clamping out the old filler, the fixed tube 1 acts like the handle of a general pliers. The user operates the opening and closing of the two pliers heads of the material-removing pliers 2 by manipulating the fixing tube 1 and the handle 3 with one hand. After the material-removing pliers 2 clamp the old filler, the user pulls out the old filler and repeats the operation until all the old filler is cleaned up.

[0024] Specifically, the packing in the cavity 7 is generally asbestos packing, graphite packing, etc. The amount of new packing that can be accommodated in the cavity 7 is sufficient to complete the packing replacement operation of a single valve.

[0025] Furthermore, the locking structure 10 includes a slot 11 and a buckle 12. The closed part of the sealing door 9 is provided with a buckle 12, and the closed part of the opening 8 is provided with a slot 11 corresponding to the buckle 12. When the sealing door 9 covers the opening 8, the buckle 12 is snapped into the slot 11.

[0026] The assembly and disassembly operations between the card block and the card slot 11 are simple and convenient, which facilitates the user to quickly open and close the sealing door 9 and saves time in taking out new fillers.

[0027] Furthermore, the cross-sectional shape of one of the grooves 5 of the circular wrench 4 is a regular hexagon and the cross-sectional shape of the other groove 5 is a regular octagon.

[0028] Common packing nuts are mostly hexagonal nuts, and some are octagonal nuts. The circular wrench 4 is provided with a hexagonal columnar groove 5 and an octagonal columnar groove 5 on the left and right sides respectively, which can adapt to the twisting operation of most packing nuts.

[0029] Furthermore, an anti-slip cover 13 is provided on the handle 3 .

[0030] The anti-slip cover 13 increases the friction between the handle 3 and the user's palm, reduces the risk of slipping, and improves the user experience.

[0031] Furthermore, the shape of the fixing cylinder 1 is cylindrical, and an anti-slip pad 14 is provided on the side surface of the fixing cylinder 1 .

[0032] The fixed tube 1 is cylindrical. Compared with other cylindrical shapes with edges, the cylindrical shape provides a better feel when the user holds it. In addition, the anti-slip pad 14 increases the friction between the fixed tube 1 and the user's palm, reduces the risk of slipping, and improves the user experience.

[0033] The working principle and use process of this utility model:

[0034] When replacing valve packing, the user first uses a round wrench 4 to turn down the packing nut, thereby removing the packing bolt separated from the packing nut, then removes the packing gland that has lost the packing bolt and packing nut, exposing the old packing, and then uses the material removal pliers 2 to clamp out the old packing. After cleaning the old packing, open the sealing door 9 and take out the new packing from the cavity 7. After putting the new packing, replace the packing gland, replace the packing bolt and packing nut, tighten the packing nut, and re-secure the packing gland to complete the valve packing replacement operation. During routine maintenance, the user should ensure that there is enough packing in the cavity 7 so that it can be taken out and used immediately when a problem occurs.

[0035] The above are only specific application examples of the present invention and do not constitute any limitation on the scope of protection of the present invention. Any technical solution formed by equivalent transformation or equivalent replacement shall fall within the scope of protection of the present invention.

Claims

1. A device for facilitating on-site replacement of valve packing, characterized by: The cam is secured to the top of the cylinder with a lock that allows the cylinder to lock onto the cam face, and the lock is secured to the cam face with a spring that allows the cylinder to lock onto the cam face.

2. The device for facilitating on-site replacement of valve packing according to claim 1, characterized in that: The locking structure includes a card slot and a buckle. The closed part of the sealing door is provided with a buckle, and the closed part of the opening is provided with a card slot corresponding to the buckle. When the sealing door covers the opening, the buckle is locked in the card slot.

3. The device for facilitating on-site replacement of valve packing according to claim 1, characterized in that: The cross-sectional shape of one of the grooves of the circular wrench is a regular hexagon, and the cross-sectional shape of the other groove is a regular octagon.

4. The device for facilitating on-site replacement of valve packing according to claim 1, characterized in that: An anti-slip cover is provided on the handle.

5. The device for facilitating on-site replacement of valve packing according to claim 1, characterized in that: The fixing cylinder is cylindrical in shape, and a non-slip pad is provided on the side surface of the fixing cylinder.

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