Ball valve maintenance fixing device

Abstract

The utility model discloses a ball valve maintenance fixing device, and belongs to the technical field of valve maintenance. Comprising a maintenance base, a plurality of clamping mechanisms are arranged on the peripheral side of the upper portion of the maintenance base, and a conveying mechanism is arranged between the clamping mechanisms; the clamping mechanisms are the same in structure and comprise supporting columns, a supporting plate is arranged above the supporting columns, a telescopic motor is fixed to the supporting plate, an output shaft of the telescopic motor is connected with a telescopic rod, a pressure sensor is embedded in the upper portion of the telescopic rod, and a through hole is formed in the lower portion of the telescopic rod. And an electric push rod is arranged in the telescopic rod and directly faces the through hole. The ball valve maintenance fixing device adopting the structure is easy to operate and move, and can meet the use requirements of space limited or small enterprises; and the problem that the ball valve possibly falls off when a worker overhauls the ball valve can be avoided while the overhauling requirements of the ball valves of different specifications and sizes are met, and potential safety hazards are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of valve repair, in particular to a ball valve repair fixing device. Background Art

[0002] The opening and closing part of the ball valve is a round sphere with a hole. The ball core is rotated 0-90 degrees around the axis of the valve stem to achieve the purpose of opening and closing. The ball valve has many functions and is generally used for switching or adjusting the medium in the pipeline. Among them, the three-way ball valve can flexibly cut off, distribute and change the flow direction of the medium. The sealing surface of the ball valve is usually in a spherical closed state, so it is not easily eroded by the medium. It is easy to operate, has a simple and compact structure, and can be used in working conditions with water, natural gas, acid, solvents, etc.

[0003] In order to ensure the performance of the ball valve, it is necessary to inspect the ball valve. In order to ensure the safety and efficiency of the operation, some fixtures are often used. Although the existing ball valve inspection fixtures provide great convenience in maintaining and repairing ball valves, they also have some defects, which may affect the efficiency, safety and cost of the operation. First, the applicability of existing fixtures is limited. Some fixtures are only suitable for ball valves of specific types, sizes or brands. The sizes of ball valves of different models vary greatly. For ball valves of non-standard or special specifications and sizes, special fixing tools may need to be customized, which adds additional costs and time; secondly, since the main body of the ball valve is tubular, it is inconvenient to fix it. The ball valve is easy to rotate during maintenance, which is not convenient for workers to inspect the ball valve. Improper design of the fixture will cause safety hazards during operation, such as unstable fixation causing the ball valve to fall off, or excessive clamping force damaging the ball valve assembly; in addition, some precision and large fixtures are too bulky and difficult to carry, especially in a work environment with limited space, which becomes a major challenge. Moreover, high-end fixtures are often expensive. For small teams or companies with limited budgets, the high initial investment may become a burden. In view of the above problems, the utility model proposes a ball valve maintenance and fixing device. Utility Model Content

[0004] The utility model aims to provide a ball valve maintenance and fixing device to solve the problems existing in the existing maintenance and fixing devices mentioned in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides a ball valve maintenance fixing device, comprising a maintenance base, a plurality of clamping mechanisms are arranged on the upper circumference of the maintenance base, and a conveying mechanism is arranged between the clamping mechanisms;

[0006] The structures of the clamping mechanisms are all the same, including a support column, a support plate is arranged above the support column, a telescopic motor is fixed on the support plate, the output shaft of the telescopic motor is connected to the telescopic rod, a pressure sensor is embedded above the telescopic rod, a through hole is opened below the telescopic rod, and an electric push rod is arranged inside the telescopic rod opposite to the through hole.

[0007] Preferably, the electric push rod includes a drive motor and an electric push rod connected to an output shaft of the drive motor.

[0008] Preferably, the conveying mechanism includes a placement rack and a cylinder disposed below the placement rack and connected to the maintenance base.

[0009] Preferably, the upper center of the placement rack is an arc-shaped structure to improve placement stability.

[0010] Preferably, at least two clamping mechanisms are provided.

[0011] Preferably, universal wheels are provided at the four corners of the bottom end of the inspection base, and brake pads are provided on the universal wheels.

[0012] Preferably, the pressure sensor, the telescopic motor, the drive motor and the cylinder are all electrically connected to the controller.

[0013] Therefore, the ball valve maintenance and fixing device of the utility model has the following beneficial effects compared with the existing maintenance and fixing devices:

[0014] (1) The ball valve inspection and fixing device of the utility model has a simple structure, is easy to operate and move, and can meet the use needs of space-constrained or small enterprises;

[0015] (2) The ball valve maintenance fixture of the utility model can meet the maintenance requirements of ball valves of different specifications and sizes;

[0016] (3) The utility model can avoid the problem of the ball valve falling off when workers are inspecting and repairing the ball valve, reduce potential safety hazards, and improve safety of use.

[0017] The technical solution of the utility model is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of a ball valve maintenance and fixing device of the utility model;

[0019] Figure 2 This is a structural schematic diagram of part A of a ball valve maintenance and fixing device of the utility model;

[0020] Reference numerals

[0021] 1. Maintenance base; 2. Support column; 3. Support plate; 4. Telescopic motor; 5. Telescopic rod; 6. Pressure sensor; 7. Drive motor; 8. Electric push rod; 9. Placement rack; 10. Cylinder; 11. Universal wheel. DETAILED DESCRIPTION

[0022] The technical solution of the utility model is further described below through the accompanying drawings and embodiments.

[0023] Unless otherwise defined, the technical terms or scientific terms used in the present invention shall have the usual meanings understood by persons with ordinary skills in the field to which the present invention belongs. The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "include" or "comprise" and the like mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "connect" or "connected" and the like are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0024] The specific connection methods of each part all adopt conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt conventional models in the existing technology, and the circuit connection adopts the conventional connection method in the existing technology, which will not be described in detail here.

[0025] Example

[0026] like Figure 1-2 As shown, the utility model discloses a ball valve maintenance and fixing device, including a maintenance base 1, two clamping mechanisms are symmetrically arranged on the left and right sides above the maintenance base 1, and a conveying mechanism is arranged between the clamping mechanisms; the conveying mechanism includes a placement rack 9 and a cylinder 10 arranged below the placement rack 9 and connected to the maintenance base 1, the ball valve to be repaired is placed on the placement rack 9, and the center of the placement rack 9 is an arc structure to improve the placement stability, and then it is driven by the cylinder 10 to rise to a suitable position, and then fixed by the clamping mechanism, and the conveying mechanism returns to the original position after stable fixation, which enhances the safety of use. Universal wheels 11 are arranged at the four corners of the bottom end of the maintenance base 1, and brake pads are arranged on the universal wheels 11, which can facilitate the position movement.

[0027] The two clamping mechanisms have the same structure, including a support column 2, a support plate 3 is arranged above the support column 2, a telescopic motor 4 is fixed on the support plate 3, the output shaft of the telescopic motor 4 is connected to the telescopic rod 5, and a pressure sensor 6 is embedded above the telescopic rod 5, a through hole is opened below the telescopic rod 5, and an electric push rod is arranged inside the telescopic rod 5 opposite to the through hole. The electric push rod includes a driving motor 7 and an electric push rod 8 connected to its output shaft. Driven by the driving motor 7, the electric push rod 8 can pass through the through hole and abut against the inner bottom end of the ball valve to achieve fixation.

[0028] Among them, the pressure sensor 6, the telescopic motor 4, the drive motor 7 and the cylinder 10 are all electrically connected to the controller.

[0029] Working principle: When the ball valve maintenance and fixing device is in use, the ball valve to be repaired is first placed on the placement rack 9, and then the controller drives the cylinder 10 to drive the placement rack 9 to rise to the ideal position, and then the controller drives the telescopic motor 4 to drive the telescopic rod 5 to extend into the inner hole of the ball valve. At this time, the upper part of the telescopic rod 5 abuts against the upper wall of the inner hole of the ball valve, and the pressure sensor 6 receives the pressure signal and transmits it to the controller. Then the controller controls the driving motor 7 to drive the electric push rod 8 to extend out of the through hole, and the lower end of the electric push rod 8 abuts against the lower wall of the inner hole of the ball valve, thereby achieving fixation. After stabilization, the controller drives the cylinder 10 to drive the placement rack 9 back to its original position.

[0030] Therefore, the utility model adopts a ball valve maintenance and fixing device of the above structure, which solves the problem that the existing maintenance and fixing equipment cannot fix and repair ball valves of different sizes and specifications and there are safety hazards. The maintenance and fixing device of the utility model is easy to operate and move, and can meet the use needs of space-constrained or small enterprises. While meeting the maintenance needs of ball valves of different sizes and specifications, it can also avoid the problem of ball valves falling off when workers are repairing the ball valves, reduce safety hazards, and improve safety of use.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that they can still modify or replace the technical solution of the utility model with equivalents, and these modifications or equivalent replacements cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of the utility model.

Claims

1. A ball valve maintenance and fixing device, characterized in that: It comprises an inspection base, wherein a plurality of clamping mechanisms are arranged on the upper circumference of the inspection base, and a conveying mechanism is arranged between the clamping mechanisms; The structures of the clamping mechanisms are all the same, including a support column, a support plate is arranged above the support column, a telescopic motor is fixed on the support plate, the output shaft of the telescopic motor is connected to the telescopic rod, a pressure sensor is embedded above the telescopic rod, a through hole is opened below the telescopic rod, and an electric push rod is arranged inside the telescopic rod opposite to the through hole.

2. A ball valve maintenance and fixing device according to claim 1, characterized in that: The electric push rod comprises a driving motor and an electric push rod connected to an output shaft of the driving motor.

3. A ball valve maintenance and fixing device according to claim 2, characterized in that: The conveying mechanism comprises a placing rack and a cylinder which is arranged below the placing rack and connected to the maintenance base.

4. A ball valve maintenance and fixing device according to claim 3, characterized in that: The center above the placement rack is an arc-shaped structure.

5. A ball valve maintenance and fixing device according to claim 4, characterized in that: At least two clamping mechanisms are provided.

6. A ball valve maintenance and fixing device according to claim 5, characterized in that: Universal wheels are arranged at the four corners of the bottom end of the inspection base, and brake pads are arranged on the universal wheels.

7. A ball valve maintenance and fixing device according to claim 6, characterized in that: The pressure sensor, the telescopic motor, the driving motor and the cylinder are all electrically connected to the controller.

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