Special tool for disassembling lower balance block and upper valve disc of double-seat valve

Abstract

The utility model relates to the technical field of disassembly of double-seat valves, in particular to a special tool for disassembling a lower balance block and an upper valve disc of a double-seat valve, and adopts the technical scheme that the special tool comprises a base plate, an equipment box and a mounting plate, a rotating shaft is rotationally mounted at the lower end of the base plate, and fixing rods which are symmetrically distributed are mounted at the tail end of the rotating shaft; a connecting plate is mounted at the tail end of the fixing rod, the equipment box is mounted at the upper end of the base plate, a rotating shaft extends into the base plate and is provided with a driven gear, a driving gear is rotatably mounted at the upper end of the base plate and is in meshed connection with the driven gear, and the mounting plate is mounted at the lower end of the connecting plate. Hydraulic equipment is mounted at the side end of the mounting plate, a clamping plate is mounted at the tail end of a hydraulic rod of the hydraulic equipment, a hard rubber layer is mounted at the front end of the clamping plate, and the clamping plate and the hard rubber layer are both arranged in an arc shape. The dismounting device has the advantages of being capable of automatically dismounting and preventing the surfaces of the lower balance block and the upper valve disc of the double-seat valve from being damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of double-seat valve disassembly, and specifically relates to a special tool for disassembling the lower balance weight and the upper valve disc of a double-seat valve. Background Technique

[0002] The double-seat valve is composed of two single-seat valves connected together. Its functions and characteristics are similar to those of the single-seat valve, but the structure is more complex. The double-seat regulating valve is suitable for use as a cut-off or flow regulating device on pipelines carrying media such as steam, air, water, etc. with a temperature range of 0 to 80°C, as well as corrosive gas and liquid media.

[0003] When disassembling the SUDMO double-seat valve, currently, a pipe wrench is used to unscrew the lower balance weight and the upper valve disc. The pipe wrench is likely to scratch the surfaces of the lower balance weight and the upper valve disc, and it is impossible to eliminate the risks of prying damage and damage to the equipment body during screwing. Moreover, the pipe wrench requires manual operation by the staff and cannot automatically unscrew the lower balance weight and the upper valve disc. Content of the Utility Model

[0004] The purpose of the utility model is to provide a special tool for disassembling the lower balance weight and the upper valve disc of a double-seat valve, which has the advantages of being able to automatically disassemble and preventing damage to the surfaces of the lower balance weight and the upper valve disc of the double-seat valve, and solves the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A special tool for disassembling the lower balance weight and the upper valve disc of a double-seat valve, including a base plate, an equipment box, and a mounting plate. A rotating shaft is rotatably installed at the lower end of the base plate. Symmetrically distributed fixing rods are installed at the end of the rotating shaft. A connecting plate is installed at the end of the fixing rod. The equipment box is installed on the upper end of the base plate. The rotating shaft extends into the base plate and is installed with a driven gear. A driving gear is rotatably installed on the upper end of the base plate. The driving gear is meshed with the driven gear. The mounting plate is installed at the lower end of the connecting plate. A hydraulic device is installed at the side end of the mounting plate. The end of the hydraulic rod of the hydraulic device is installed with a clamping plate. A hard rubber layer is installed at the front end of the clamping plate. Both the clamping plate and the hard rubber layer are arc-shaped.

[0006] When using the special tool for disassembling the lower balance weight and the upper valve disc of a double-seat valve of the utility model,

[0007] Hold the handle to use the utility model. When disassembling the lower balance weight and the upper valve disc of the double-seat valve, place them between the clamping plates. By operating the hydraulic device, the clamping plates can be made to approach each other to clamp and fix the disassembly location. Then, by operating the driving device, the rotating shaft can be rotated. Under the action of the clamping plates, the lower balance weight or the upper valve disc of the double-seat valve can be clamped and rotated, so that the lower balance weight and the upper valve disc of the double-seat valve can be unscrewed. Under the action of the hard rubber layer, the surface can be prevented from being worn. When the hard rubber layer is worn to the point where it cannot be used, it can be disassembled and replaced.

[0008] Preferably, a connecting rod is welded to the side end of the base plate, and a handle is installed at the end of the connecting rod.

[0009] Preferably, a driving device is arranged in the equipment box, and the main shaft of the driving device is connected to the axis of the driving gear.

[0010] Preferably, symmetrically distributed second mounting holes are formed in the connecting plate, corresponding second threaded holes are formed in the mounting plate, and bolts are threadedly installed in the second mounting holes and the second threaded holes.

[0011] Preferably, first threaded holes are formed at both ends of the clamping plate, first mounting holes corresponding to the first threaded holes are formed in the hard rubber layer, and bolts are threadedly installed in the first mounting holes and the first threaded holes.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows: When disassembling the lower balance weight and the upper valve disc of the double-seat valve, place them between the clamping plates. Through the operation of the hydraulic equipment, the clamping plates can be made to approach each other to clamp and fix the disassembling position. Then, through the operation of the driving device, the rotating shaft can be rotated. Under the action of the clamping plates, the lower balance weight or the upper valve disc of the double-seat valve can be clamped and rotated, so that the lower balance weight and the upper valve disc of the double-seat valve can be unscrewed, and the disassembly work can be automatically carried out. Moreover, under the action of the hard rubber layer, the surfaces of the lower balance weight and the upper valve disc of the double-seat valve can be prevented from being worn and damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a front view structural schematic diagram of the present utility model;

[0014] Figure 2 is a sectional view structural schematic diagram of the present utility model;

[0015] Figure 3 is a bottom view structural schematic diagram of the present utility model;

[0016] Figure 4 is a partial structural schematic diagram of the present utility model.

[0017] The reference numerals and names in the drawings are as follows:

[0018] 101, base plate; 102, connecting rod; 103, handle; 201, rotating shaft; 202, fixed rod; 203, connecting plate; 204, equipment box; 205, driven gear; 206, driving device; 207, driving gear; 301, mounting plate; 302, hydraulic equipment; 303, clamping plate; 304, rubber layer; 305, first mounting hole; 306, first threaded hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] Next, in combination with the accompanying drawings in the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0020] Embodiment

[0021] Please refer to Figures 1 to 4 , an embodiment provided by the present invention: a special tool for disassembling the lower balance weight and the upper valve disc of a double-seat valve, including:

[0022] A base plate 101, an equipment box 204, and a mounting plate 301. A rotating shaft 201 is rotatably installed at the lower end of the base plate 101. Symmetrically distributed fixing rods 202 are installed at the end of the rotating shaft 201. A connecting plate 203 is installed at the end of the fixing rod 202. The equipment box 204 is installed at the upper end of the base plate 101. The rotating shaft 201 extends into the base plate 101 and is installed with a driven gear 205. A driving gear 207 is rotatably installed at the upper end of the base plate 101. The driving gear 207 is meshed with the driven gear 205. The mounting plate 301 is installed at the lower end of the connecting plate 203. A hydraulic device 302 is installed at the side end of the mounting plate 301. The end of the hydraulic rod of the hydraulic device 302 is installed with a clamping plate 303. A hard rubber layer 304 is installed at the front end of the clamping plate 303. Both the clamping plate 303 and the hard rubber layer 304 are arc-shaped.

[0023] In this embodiment, the present invention is used by holding the handle 103. When disassembling the lower balance weight and the upper valve disc of the double-seat valve, place them between the clamping plates 303. By operating the hydraulic device 302, the clamping plates 303 can be made to approach each other to clamp and fix the disassembly position. Then, by operating the driving device 206, the rotating shaft 207 can be rotated. Under the action of the clamping plates 303, the lower balance weight or the upper valve disc of the double-seat valve can be clamped and rotated, so that the lower balance weight and the upper valve disc of the double-seat valve can be unscrewed. Under the action of the hard rubber layer 304, the surface can be prevented from being worn. When the hard rubber layer 304 is worn to the point where it cannot be used, it is disassembled and replaced.

[0024] Furthermore,

[0025] A connecting rod 102 is welded to the side end of the base plate 101. A handle 103 is installed at the end of the connecting rod 102. The handle 103 is provided for holding the present invention for use.

[0026] Furthermore,

[0027] A driving device 206 is arranged inside the equipment box 204, and the main shaft of the driving device 206 is connected to the axis center of the driving gear 207. By operating the driving device 206, the driving gear 207 can be rotated at a low speed, and the driving gear 207 can drive the driven gear 205 to rotate, thereby enabling the rotating shaft 207 to rotate.

[0028] Furthermore,

[0029] Symmetrically distributed second mounting holes are formed on the connecting plate 203, and corresponding second threaded holes are formed on the mounting plate 301. Bolts are threadedly installed in the second mounting holes and the second threaded holes. The second mounting holes and the second threaded holes cooperate with the bolts to mount the mounting plate 301 at the lower end of the connecting plate 203.

[0030] Furthermore,

[0031] First threaded holes 306 are formed at both ends of the clamping plate 303, and corresponding first mounting holes 305 are formed on the hard rubber layer 304. Bolts are threadedly installed in the first mounting holes 305 and the first threaded holes 306. The first mounting holes 305 and the first threaded holes 306 cooperate with the bolts to mount the hard rubber layer 304 at the front end of the clamping plate 303.

[0032] The driving device 206 and the hydraulic device 302 in the present utility model are well-known devices, and their working principles and circuit connections are well-known to technicians in the field, and both belong to conventional means or common general knowledge, so they will not be elaborated here. Those skilled in the art can make any selection according to their needs or convenience.

[0033] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be regarded as limiting the claimed rights.

Claims

1. A special tool for disassembling the lower balance weight and upper valve disc of a double-seat valve, comprising a base plate (101), an equipment box (204) and a mounting plate (301), characterized in that: A rotating shaft (201) is rotatably installed at the lower end of the base plate (101). Symmetrically distributed fixing rods (202) are installed at the end of the rotating shaft (201). A connecting plate (203) is installed at the end of the fixing rod (202). The equipment box (204) is installed at the upper end of the base plate (101). The rotating shaft (201) extends into the base plate (101) and is installed with a driven gear (205). A driving gear (207) is rotatably installed at the upper end of the base plate (101). The driving gear (207) is meshed and connected with the driven gear (205). The mounting plate (301) is installed at the lower end of the connecting plate (203). A hydraulic device (302) is installed at the side end of the mounting plate (301). The end of the hydraulic rod of the hydraulic device (302) is installed with a clamping plate (303). A hard rubber layer (304) is installed at the front end of the clamping plate (303). Both the clamping plate (303) and the hard rubber layer (304) are arc-shaped.

2. The special tool for disassembling the lower balance weight and upper valve disc of a double-seat valve according to claim 1, wherein: A connecting rod (102) is welded at the side end of the base plate (101). A handle (103) is installed at the end of the connecting rod (102).

3. A special tool for disassembling the lower balance weight and upper valve disc of a double-seat valve according to claim 1, characterized in that: A driving device (206) is arranged inside the equipment box (204). The main shaft of the driving device (206) is connected to the axis of the driving gear (207).

4. A special tool for disassembling the lower balance weight and the upper valve disc of a double-seat valve according to claim 1, characterized in that: Symmetrically distributed second mounting holes are formed on the connecting plate (203). Corresponding second threaded holes are formed on the mounting plate (301). Bolts are threadedly installed in the second mounting holes and the second threaded holes.

5. A special tool for disassembling the lower balance weight and upper valve disc of a double-seat valve according to claim 1, characterized in that: First threaded holes (306) are formed at both ends of the clamping plate (303). First mounting holes (305) corresponding to the first threaded holes (306) are formed on the hard rubber layer (304). Bolts are threadedly installed in the first mounting holes (305) and the first threaded holes (306).

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