Valve maintaining and cleaning device

Abstract

The utility model discloses a valve maintaining and cleaning device, and relates to the technical field of valve cleaning. The cleaning device comprises a cleaning box, a containing assembly is arranged in the center of the interior of the cleaning box, and an adjusting assembly is further arranged at the front end of the cleaning box. The placing assembly comprises a placing frame, and the placing frame is movably connected to the inner center position of the cleaning box through a mounting column. The second sliding block is driven by the double-shaft motor to move, the positioning plate is driven by the second sliding block to move on the containing frame, the valve on the containing frame is positioned through the positioning plate, and the problem that automatic positioning of the valve is inconvenient in the prior art is solved. And meanwhile, the pH value of a solution in the cleaning box is adjusted through acid liquid in an adjusting box, the acid solution in the adjusting box is evenly added into the cleaning box through an adjusting pipe and a branch pipe, rust on the valve is conveniently cleaned, and the problem that rust on the valve is inconvenient to clean in the prior art is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of valve cleaning, in particular to a valve maintenance and cleaning device. Background Art

[0002] Valves are pipe accessories used to open and close pipes, control flow direction, and adjust and control the parameters of the conveying medium. According to their functions, they can be divided into shut-off valves, check valves, regulating valves, etc. During the use of valves, they are prone to blockage and rust. Therefore, when repairing valves, impurities or rust are usually cleaned. In order to facilitate the cleaning work during valve maintenance, cleaning devices are generally used;

[0003] The existing document with publication number CN219899482U discloses a cleaning device for valve maintenance, wherein two positioning plates are respectively provided with clamping mechanisms, a cleaning mechanism is installed on the main plate, a water inlet end of the cleaning mechanism is connected with a water discharge end of the clamping mechanism, and a water spray end of the cleaning mechanism is located in the moving end of the clamping mechanism, and sliding grooves are respectively provided on the inner walls on both sides of the water supply end of the cleaning mechanism, and a filtering mechanism is installed in the sliding groove;

[0004] However, it still has the following disadvantages in actual use:

[0005] 1. The supporting mechanism of the cleaning device mentioned above includes supporting legs and a placement plate, and the valve is placed by the placement plate. However, when in use, the valve on the placement plate cannot be positioned, resulting in that the two ends of the valve cannot be aligned with the positioning plate, making it inconvenient to clean the inside of the valve;

[0006] 2. The cleaning device mentioned above has two positioning plates fixedly connected to its main body plate, clamping mechanisms are respectively installed on the two positioning plates, and a cleaning mechanism is installed on the main body plate. The valve is clamped on the placement plate by the positioning plates and the clamping mechanisms, and the inside of the valve is cleaned by the cleaning mechanism. However, when in use, it is unable to remove the rust inside the valve, and the cleaning effect is unsatisfactory.

[0007] To this end, we provide a valve maintenance and cleaning device to solve the above-mentioned problems. Utility Model Content

[0008] The utility model aims to provide a valve maintenance and cleaning device, which drives a second slider to move through a dual-axis motor, and drives a positioning plate to move on a placement frame through the second slider, and positions the valve on the placement frame through the positioning plate, thereby solving the existing problem of inconvenience in automatically positioning the valve, and at the same time adjusts the pH value of the solution in the cleaning box through the acidic liquid in the regulating box, and the acidic solution in the regulating box is evenly added to the cleaning box through the regulating pipe and the branch pipe, thereby facilitating the cleaning of rust on the valve, thereby solving the existing problem of inconvenience in cleaning rust on the valve.

[0009] In order to solve the above technical problems, the utility model is achieved through the following technical solutions:

[0010] The utility model is a valve maintenance and cleaning device, comprising a cleaning box, a placement component is arranged at the inner center of the cleaning box, and an adjustment component is also arranged at the front end of the cleaning box;

[0011] The placement component includes a placement frame, which is movably connected to the inner center position of the cleaning box through a mounting column, and movable blocks are movably connected to both sides of the inner part of the placement frame, and slots are provided on the tops of the movable blocks, and positioning plates are movably connected to the front and rear ends of the top of the placement frame, and a dual-axis motor is fixedly connected to the inner center position of the placement frame through a waterproof shell, and the output shafts of the dual-axis motors are fixedly connected to a second screw rod, and one end of the second screw rod away from the dual-axis motor is rotatably connected to the front and rear end surfaces of the inner side of the placement frame, respectively, and a second slider is threadedly sleeved on the second screw rod, and the top of the second slider is welded to the center position of the lower surface of the positioning plate;

[0012] The adjusting component includes an adjusting box, which is fixedly connected to the front end of the cleaning box, and the bottom of the adjusting box is fixedly connected to a discharge pipe, and the bottom end of the discharge pipe is movably connected to an adjusting tube through a rotating joint, and the end of the adjusting tube away from the rotating joint is rotatably connected to the inner rear end surface of the cleaning box, a section of the adjusting tube located on the inner side of the cleaning box is evenly fixedly connected to a plurality of branch pipes, a section of the adjusting tube located on the outer side of the cleaning box is sleeved with a driven gear, and one side of the front end surface of the cleaning box is fixedly connected to a driving motor through a motor frame, and a driving gear is sleeved on the output shaft of the driving motor, and the driving gear is meshingly connected to one side of the driven gear.

[0013] The utility model is further configured as follows: the top ends of multiple mounting columns are respectively fixed around the inner bottom of the cleaning box, the top ends of the mounting columns are fixedly connected to a lifting motor, the output shaft of the lifting motor is fixedly connected to a first screw rod, the bottom end of the first screw rod is rotatably connected to the inner bottom of the mounting column, a first slider is threadedly sleeved on the first screw rod, and one side of the multiple first sliders is respectively welded to the front and rear ends of the outer walls on both sides of the placement frame.

[0014] The utility model is further configured as follows: first grooves are provided on both sides of the front and rear end surfaces inside the placement frame, first protrusions are welded on the front and rear end surfaces of the moving block, and the free ends of the first protrusions are movably connected to the inside of the first grooves.

[0015] The utility model is further configured as follows: outer walls of the moving blocks that are away from each other are movably connected with threaded rods, one end of the threaded rod that is away from the moving block threads through the outer wall of the placement frame and is fixedly connected with a knob.

[0016] The utility model is further configured as follows: second grooves are provided on both sides of the top of the placement frame, second protrusions are welded on both sides of the lower surface of the positioning plate, and free ends of the second protrusions are movably connected to the inside of the second grooves.

[0017] The utility model is further configured as follows: cleaning components are provided on both sides of the interior of the cleaning box, the cleaning components include a movable plate, first ear seats are welded on the front and rear end surfaces of the movable plate, inner rods are welded on the outer wall of one side of the first ear seat, a sleeve rod is sleeved on the outer side of one end of the inner rod away from the first ear seat, one end of the sleeve rod away from the inner rod is welded to the inner wall of the cleaning box, a second ear seat is welded on the upper surface of the movable plate, a hydraulic cylinder is fixedly connected to the outer wall of one side of the second ear seat, one end of the hydraulic cylinder away from the second ear seat is fixedly connected to the upper inner wall of the cleaning box, a flushing pipe passes through the outer wall of the movable plate, one end of the flushing pipe is fixedly connected to a nozzle, and the other end of the flushing pipe is fixedly connected to a submersible pump, and the submersible pump is located at the inner bottom of the cleaning box.

[0018] The utility model is further configured as follows: fixing rods are welded around the rear end surface of the regulating box, and the rear ends of the fixing rods are fixedly connected to the front end surface of the cleaning box.

[0019] The utility model is further configured as follows: an observation window is inlaid on the front end surface of the regulating box, and scale lines are engraved on the observation window.

[0020] The utility model has the following beneficial effects:

[0021] 1. The utility model places the valve on the placement frame by setting a placement component, and makes the flanges on both sides of the valve clamped in the slots at the top of the moving block, and starts the double-axis motor at the same time. The output shaft of the double-axis motor drives the second screw rod to rotate synchronously, and the second screw rod drives the positioning plate to move on the placement frame through the second slider. The valve is positioned at the top center of the placement frame through the movement of the positioning plate, which is convenient for automatic positioning of the valve and convenient for cleaning the inside of the valve.

[0022] 2. The utility model sets an adjustment component, opens the discharge valve on the discharge pipe, so that the acid solution in the adjustment box enters the cleaning box through the adjustment pipe, and starts the drive motor. The output shaft of the drive motor drives the drive gear to rotate, and the drive gear drives the adjustment pipe to rotate through the driven gear. The solution in the cleaning box is stirred by the rotation of the adjustment pipe and the branch pipe, so that the acid solution is evenly added to the cleaning box. When the pH value in the cleaning box reaches a preset value, the discharge valve and the drive motor are closed, and the valve is immersed in the cleaning box, so that the rust on the valve can be cleaned, which is convenient for cleaning the rust on the valve and facilitating the maintenance and cleaning of the valve.

[0023] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 The figure is a schematic diagram of the overall structure of a valve maintenance and cleaning device.

[0025] Figure 2 It is a structural schematic diagram of the placement components of the utility model.

[0026] Figure 3 This is a structural disassembly diagram of the placement frame of the utility model.

[0027] Figure 4 It is a structural schematic diagram of the moving block of the utility model.

[0028] Figure 5 It is a structural schematic diagram of the positioning plate of the utility model.

[0029] Figure 6 It is a structural schematic diagram of the cleaning component of the utility model.

[0030] Figure 7 It is a structural schematic diagram of the adjustment component of the utility model.

[0031] Figure 8 It is a structural schematic diagram of the regulating box of the utility model.

[0032] Fig. 9 It is a structural schematic diagram of the regulating tube of the utility model.

[0033] Fig.10 It is a structural schematic diagram of the drive motor of the utility model.

[0034] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0035] 1-cleaning box, 2-placing assembly, 201-placing frame, 201a-first slider, 201b-first groove, 201c-second groove, 202-mounting column, 202a-lifting motor, 202b-first screw rod, 203-moving block, 203a-slot, 203b-first protrusion, 203c-threaded rod, 203d-knob, 204-positioning plate, 204a-second protrusion, 205-dual-axis motor, 205a-waterproof shell, 205b-second screw rod, 205c-second slider, 3-cleaning assembly, 30 1-moving plate, 301a-first ear seat, 301b-inner rod, 301c-sleeve rod, 301d-second ear seat, 302-hydraulic cylinder, 303-flushing pipe, 304-nozzle, 305-submersible pump, 4-adjusting assembly, 401-adjusting box, 401a-discharging pipe, 401b-fixed rod, 401c-observation window, 401d-scale line, 402-rotating joint, 403-adjusting pipe, 403a-branch pipe, 403b-driven gear, 404-driving motor, 404a-motor frame, 404b-driving gear. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0037] Example 1

[0038] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, it is the first embodiment of the utility model, which provides a valve maintenance and cleaning device, including a cleaning box 1, a placement component 2 is arranged at the inner center position of the cleaning box 1, and cleaning components 3 are also arranged on both sides of the interior of the cleaning box 1. The placement component 2 includes a placement frame 201, a mounting column 202, a moving block 203, a positioning plate 204 and a dual-axis motor 205. The dual-axis motor 205 drives the positioning plate 204 to move on the placement frame 201, and the positioning plate 204 drives the valve to move, thereby solving the existing problem of inconvenience in automatically positioning the valve on the placement frame 201.

[0039] Specifically, the placement frame 201 is movably connected to the inner center position of the cleaning box 1 through the mounting column 202, and the inner sides of the placement frame 201 are movably connected with the moving blocks 203, and the tops of the moving blocks 203 are provided with slots 203a, and the front and rear ends of the top of the placement frame 201 are movably connected with the positioning plate 204, and the inner center position of the placement frame 201 is fixedly connected with the dual-axis motor 205 through the waterproof shell 205a, and the output shafts of the dual-axis motor 205 are fixedly connected with the second screw rod 205b, and the ends of the second screw rod 205b away from the dual-axis motor 205 are respectively rotatably connected to the front and rear end surfaces of the inner side of the placement frame 201, and the second screw rod 205b is threadedly sleeved with a second slider 205c, and the top of the second slider 205c is welded to the center of the lower surface of the positioning plate 204 In terms of position, the placement frame 201 is used to install structures such as the moving block 203, the installation column 202 is used to install the placement frame 201 inside the cleaning box 1, and the height of the placement frame 201 is adjusted, the moving block 203 and the card slot 203a are used to place the valve, and the flanges on both sides of the valve are clamped in the inside of the card slot 203a, the positioning plate 204 is used to automatically position the valve at the top center position of the placement frame 201, the dual-axis motor 205 is used to drive the second screw rod 205b to rotate, the waterproof shell 205a is used to install the dual-axis motor 205 and waterproof the dual-axis motor 205, and the second screw rod 205b and the second slider 205c are used to drive the positioning plate 204 to move.

[0040] Furthermore, the top ends of the plurality of mounting posts 202 are respectively fixed around the bottom of the inner side of the cleaning box 1, and the top ends of the mounting posts 202 are fixedly connected to the lifting motor 202a, and the output shaft of the lifting motor 202a is fixedly connected to the first screw rod 202b, and the bottom end of the first screw rod 202b is rotatably connected to the bottom of the inner side of the mounting post 202, and the first screw rod 202b is threadedly sleeved with a first slider 201a, and one side of the plurality of first sliders 201a is respectively welded to the front and rear ends of the outer walls on both sides of the placement frame 201;

[0041] First grooves 201b are provided on both sides of the front and rear end surfaces of the inner side of the placement frame 201, and first protrusions 203b are welded on the front and rear end surfaces of the moving block 203, and the free ends of the first protrusions 203b are movably connected to the inside of the first grooves 201b;

[0042] The outer walls of the moving blocks 203 that are away from each other are movably connected with threaded rods 203c, and one end of the threaded rod 203c away from the moving blocks 203 is threadedly penetrated through the outer wall of the placement frame 201 and fixedly connected with a knob 203d;

[0043] Second grooves 201c are provided on both sides of the top of the placement frame 201, and second protrusions 204a are welded on both sides of the lower surface of the positioning plate 204, and the free ends of the second protrusions 204a are movably connected to the inside of the second grooves 201c;

[0044] The cleaning assembly 3 includes a movable plate 301 respectively located on both sides of the inside of the cleaning box 1, and a first ear seat 301a is welded on the front and rear end surfaces of the movable plate 301, and an inner rod 301b is welded on the outer wall of one side of the first ear seat 301a, and a sleeve rod 301c is sleeved on the outer side of one end of the inner rod 301b away from the first ear seat 301a, and the end of the sleeve rod 301c away from the inner rod 301b is welded to the inner wall of the cleaning box 1, and a second ear seat 301d is welded on the upper surface of the movable plate 301, and a hydraulic cylinder 302 is fixedly connected to the outer wall of one side of the second ear seat 301d, and one end of the hydraulic cylinder 302 away from the second ear seat 301d is fixedly connected to the upper inner wall of the cleaning box 1, and a flushing pipe 303 passes through the outer wall of the movable plate 301, and one end of the flushing pipe 303 is fixedly connected to a nozzle 304, and the other end of the flushing pipe 303 is fixedly connected to a submersible pump 305, which is located at the inner bottom of the cleaning box 1.

[0045] The operation process of this embodiment is as follows: first, the position of the moving block 203 on the placement frame 201 is adjusted according to the length of the valve, and the knob 203d is turned. The knob 203d drives the threaded rod 203c to rotate synchronously, and under the action of the threaded screw connection between the threaded rod 203c and the placement frame 201, the threaded rod 203c drives the moving block 203 to move inside the placement frame 201. When the moving block 203 moves to the specified position, the knob 203d is stopped, and then the valve is placed on the placement frame 201, and the flanges on both sides of the valve are clamped on the top of the moving block 203. The double-axis motor 205 is started at the same time, and the output shaft of the double-axis motor 205 drives the second screw rod 205b to rotate synchronously. The second screw rod 205b drives the positioning plate 204 to move on the placement frame 201 through the second slider 205c. The valve is positioned at the top center of the placement frame 201 through the movement of the positioning plate 204. Finally, the submersible pump 305 is started, and the cleaning liquid inside the cleaning box 1 is pumped into the flushing pipe 303 through the submersible pump 305, and the cleaning liquid is sprayed into the valve through the nozzle 304, thereby cleaning the inside of the valve.

[0046] Example 2

[0047] See also Figure 1 , Figure 7 , Figure 8 , Fig. 9 and Fig.10As shown, it is the second embodiment of the utility model, which is based on the previous embodiment, but is different from the previous embodiment in that: a pH sensor is further provided on the inner side of the cleaning box 1 for real-time detection of the pH of the solution in the cleaning box 1, and an adjustment component 4 is also provided at the front end of the cleaning box 1, and the adjustment component 4 includes a regulating box 401, a rotating joint 402, a regulating tube 403 and a driving motor 404. An acidic solution is provided to the cleaning box 1 through the regulating box 401 and the regulating tube 403, so that the pH of the solution in the cleaning box 1 is adjusted, and the regulating tube 403 is driven to rotate by the driving motor 404, so that the acidic solution is evenly added to the inside of the cleaning box 1, and at the same time, the rust on the valve is cleaned by the acidic solution in the cleaning box 1, thereby solving the existing problem of inconvenience in cleaning the rust on the valve.

[0048] Specifically, the regulating box 401 is fixedly connected to the front end of the cleaning box 1, and the bottom of the regulating box 401 is fixedly connected to a discharge pipe 401a, and the bottom end of the discharge pipe 401a is movably connected to an regulating pipe 403 through a rotating joint 402, and one end of the regulating pipe 403 away from the rotating joint 402 is rotatably connected to the inner rear end surface of the cleaning box 1, and a section of the regulating pipe 403 located on the inner side of the cleaning box 1 is evenly fixedly connected to multiple branch pipes 403a, and a section of the regulating pipe 403 located on the outer side of the cleaning box 1 is sleeved with a driven gear 403b, and one side of the front end surface of the cleaning box 1 is fixedly connected to a driving motor 404 through a motor frame 404a, and a driving gear 404b is sleeved on the output shaft of the driving motor 404, and the driving gear 404b is meshed and connected to one side of the driven gear 403b. On the side, the regulating box 401 is used to store the acidic solution, and the discharge pipe 401a is further provided with a discharge valve. The discharge pipe 401a and the rotary joint 402 are used to introduce the acidic solution in the regulating box 401 into the regulating pipe 403. The regulating pipe 403 and the branch pipe 403a are used to evenly add the acidic solution to the interior of the cleaning box 1, and a check valve is further provided on the regulating pipe 403, and a through hole is further opened on the branch pipe 403a. The driven gear 403b is used to drive the regulating pipe 403 to rotate, the drive motor 404 is used to drive the drive gear 404b to rotate, the motor frame 404a is used to install the drive motor 404, and the drive gear 404b is used to drive the driven gear 403b to rotate.

[0049] Furthermore, the rear end surface of the regulating box 401 is welded with fixing rods 401b around the periphery, and the rear ends of the fixing rods 401b are fixedly connected to the front end surface of the cleaning box 1 around the periphery;

[0050] An observation window 401c is inlaid on the front end surface of the regulating box 401, and a scale line 401d is engraved on the observation window 401c.

[0051] The rest of the structure is the same as that of Example 1.

[0052] The operation process of this embodiment is as follows: when the rust on the valve needs to be cleaned, first open the discharge valve on the discharge pipe 401a, so that the acidic solution in the regulating box 401 enters the cleaning box 1 through the regulating pipe 403, and start the drive motor 404. The output shaft of the drive motor 404 drives the drive gear 404b to rotate, and the drive gear 404b drives the regulating pipe 403 to rotate through the driven gear 403b. The solution in the cleaning box 1 is stirred by the rotation of the regulating pipe 403 and the branch pipe 403a, so that the acidic solution is evenly added to the cleaning box 1. When the pH value in the cleaning box 1 reaches the preset value, the discharge valve and the drive motor 404 are closed, and the valve is immersed in the cleaning box 1, thereby cleaning the rust on the valve.

[0053] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0054] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A valve maintenance and cleaning device, comprising a cleaning box (1), characterized in that: A placement component (2) is disposed at the center of the interior of the cleaning box (1), and an adjustment component (4) is also disposed at the front end of the cleaning box (1); The placement component (2) comprises a placement frame (201), and the placement frame (201) is movably connected to the inner center position of the cleaning box (1) through a mounting column (202), the inner sides of the placement frame (201) are movably connected with moving blocks (203), and the tops of the moving blocks (203) are provided with slots (203a), the front and rear ends of the top of the placement frame (201) are movably connected with positioning plates (204), and the inner center position of the placement frame (201) is fixedly connected to a dual-axis motor (205) through a waterproof shell (205a), the output shafts of the dual-axis motor (205) are fixedly connected to a second screw rod (205b), and one end of the second screw rod (205b) away from the dual-axis motor (205) is rotatably connected to the front and rear end surfaces of the inner side of the placement frame (201), a second slider (205c) is threadedly sleeved on the second screw rod (205b), and the top of the second slider (205c) is welded to the center position of the lower surface of the positioning plate (204); The regulating assembly (4) comprises a regulating box (401), and the regulating box (401) is fixedly connected to the front end of the cleaning box (1), the bottom of the regulating box (401) is fixedly connected to a discharge pipe (401a), and the bottom end of the discharge pipe (401a) is movably connected to an regulating pipe (403) via a rotating joint (402), one end of the regulating pipe (403) away from the rotating joint (402) is rotatably connected to the inner rear end surface of the cleaning box (1), and a section of the regulating pipe (403) located inside the cleaning box (1) is evenly fixedly connected to a plurality of branch pipes (403a), a section of the regulating pipe (403) located outside the cleaning box (1) is sleeved with a driven gear (403b), and one side of the front end surface of the cleaning box (1) is fixedly connected to a driving motor (404) via a motor frame (404a), and a driving gear (404b) is sleeved on the output shaft of the driving motor (404), and the driving gear (404b) is meshingly connected to one side of the driven gear (403b).

2. A valve maintenance and cleaning device according to claim 1, characterized in that: The top ends of the plurality of mounting columns (202) are respectively fixed to the four sides of the inner bottom of the cleaning box (1), and the top ends of the mounting columns (202) are fixedly connected to a lifting motor (202a), the output shaft of the lifting motor (202a) is fixedly connected to a first screw rod (202b), and the bottom end of the first screw rod (202b) is rotatably connected to the inner bottom of the mounting column (202), a first slider (201a) is threadedly sleeved on the first screw rod (202b), and one side of the plurality of first sliders (201a) is respectively welded to the front and rear ends of the outer walls on both sides of the placement frame (201).

3. A valve maintenance and cleaning device according to claim 1, characterized in that: First grooves (201b) are provided on both sides of the front and rear end surfaces inside the placement frame (201), and first protrusions (203b) are welded on the front and rear end surfaces of the moving block (203), and the free ends of the first protrusions (203b) are movably connected to the inside of the first grooves (201b).

4. A valve maintenance and cleaning device according to claim 3, characterized in that: The outer walls of the moving blocks (203) that are away from each other are movably connected with threaded rods (203c), and one end of the threaded rod (203c) away from the moving block (203) is threadedly penetrated through the outer wall of the placement frame (201) and is fixedly connected with a knob (203d).

5. A valve maintenance and cleaning device according to claim 1, characterized in that: Second grooves (201c) are provided on both sides of the top of the placement frame (201), and second protrusions (204a) are welded on both sides of the lower surface of the positioning plate (204), and the free ends of the second protrusions (204a) are movably connected inside the second grooves (201c).

6. A valve maintenance and cleaning device according to claim 2, characterized in that: A cleaning assembly (3) is provided on both sides of the interior of the cleaning box (1), and the cleaning assembly (3) comprises a movable plate (301), first ear seats (301a) are welded on the front and rear end surfaces of the movable plate (301), and an inner rod (301b) is welded on the outer wall of one side of the first ear seat (301a), a sleeve rod (301c) is sleeved on the outer side of one end of the inner rod (301b) away from the first ear seat (301a), and one end of the sleeve rod (301c) away from the inner rod (301b) is welded to the inner wall of the cleaning box (1), and the upper surface of the movable plate (301) is welded to the inner wall of the cleaning box (1). A second ear seat (301d) is welded on the surface, and a hydraulic cylinder (302) is fixedly connected to an outer wall of one side of the second ear seat (301d), and one end of the hydraulic cylinder (302) away from the second ear seat (301d) is fixedly connected to the upper inner wall of the cleaning box (1), and a flushing pipe (303) passes through the outer wall of the movable plate (301), one end of the flushing pipe (303) is fixedly connected to a nozzle (304), and the other end of the flushing pipe (303) is fixedly connected to a submersible pump (305), and the submersible pump (305) is located at the inner bottom of the cleaning box (1).

7. A valve maintenance and cleaning device according to claim 1, characterized in that: Fixed rods (401b) are welded around the rear end surface of the regulating box (401), and the rear ends of the fixed rods (401b) are fixedly connected to the front end surface of the cleaning box (1) at the four sides.

8. A valve maintenance and cleaning device according to claim 7, characterized in that: An observation window (401c) is inlaid on the front end surface of the regulating box (401), and scale lines (401d) are engraved on the observation window (401c).

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