Loading and unloading device for pneumatic butterfly valve

Abstract

The utility model relates to the technical field of valve detection, in particular to a loading and unloading device for a pneumatic butterfly valve. Wherein the first bearing assembly and the third bearing assembly are arranged on the support assembly in a sliding mode, the first bearing assembly and the third bearing assembly are used for supporting an executing mechanism, the second bearing assembly is arranged between the first bearing assembly and the third bearing assembly, the second bearing assembly is used for supporting a yoke frame, and the lifting assembly is arranged on the support assembly. The lifting assembly is located below the second bearing assembly and can drive the second bearing assembly to ascend or descend. Compared with the prior art, the pneumatic butterfly valve has the advantages that the executing mechanism and the yoke frame are supported through the first bearing assembly, the second bearing assembly and the third bearing assembly respectively, the whole pneumatic butterfly valve can be dismantled, the valve body is moved out through sliding of the first bearing assembly and the third bearing assembly, disassembly and assembly of the pneumatic butterfly valve are avoided, and the maintenance efficiency of the pneumatic butterfly valve is improved; and the safety is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to valve detection technical field, especially a kind of handling device of pneumatic butterfly valve. BACKGROUND

[0002] The pneumatic butterfly valve used in nuclear power plant is three-eccentric butterfly valve, used in the safety shell air filtration system in nuclear power plant, can ensure the integrity of safety shell pressure boundary under accident state, but due to the characteristics of its system, dust is easily accumulated on the valve sealing surface, which easily leads to valve sealing, affects the integrity of safety shell pressure boundary, the consequence is very serious, therefore, once the valve occurs internal leakage, it needs to be repaired efficiently and quickly.

[0003] However, the weight of the pneumatic butterfly valve is 1 ton, and the length of the actuator is 2 meters. Since the space where it is located cannot install a lifting point and its weight is equal to the maximum allowable lifting weight of the lifting scaffold in the nuclear power plant, there is a risk of bending the lifting scaffold when lifting and hoisting the whole valve. The commonly used lifting method is to separate the actuator and the valve body and hoist them separately. In addition, the length of the actuator exceeds the maximum span of the scaffold, and the actuator needs to be adjusted in a complex spatial position during lifting, which greatly increases the risk of lifting. Moreover, after hoisting the actuator and the valve body separately, the process of repairing the sealing surface must reassemble them to control the opening and closing of the valve, so that the sealing surface cleaning work can be carried out. When the internal leakage problem is solved, the two must be separated again to reinstall the valve body on the pipeline and then reinstall the actuator on the valve body. This seriously affects the work efficiency. In addition, since the final installation is in two parts, there may be a slight deviation in the position of the actuator, which may cause the valve to be unable to close completely, which may cause the valve to leak again, and the valve needs to be disassembled again, reducing the efficiency of reinstallation.

[0004] Therefore, there is an urgent need for a handling device for pneumatic butterfly valve to solve the above technical problems. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a handling device for pneumatic butterfly valve, which can improve the repair efficiency of pneumatic butterfly valve and improve safety.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] The utility model provides a kind of handling device of pneumatic butterfly valve, the pneumatic butterfly valve includes valve body, yoke and actuator, the yoke is connected with the actuator, the valve body is connected to the bottom of the yoke, the handling device of pneumatic butterfly valve includes: support assembly, first support assembly, second support assembly, third support assembly and lifting assembly, the first support assembly and the third support assembly are slidably arranged in the support assembly, and the first support assembly and the third support assembly are used to support the actuator, the second support assembly is arranged between the first support assembly and the third support assembly, and the second support assembly is used to support the yoke, the lifting assembly is arranged in the support assembly, and the lifting assembly is below the second support assembly, and the lifting assembly can drive the second support assembly to rise or descend.

[0008] As a preferred technical scheme of the above-mentioned handling device of pneumatic butterfly valve, the first support assembly includes a first base and a first support plate, the first base is slidably arranged in the support assembly, and the first support plate is connected to the top of the first base.

[0009] As a preferred technical scheme of the above-mentioned handling device of pneumatic butterfly valve, the first support plate is in the shape of a semicircular arc.

[0010] As a preferred technical scheme of the above-mentioned handling device of pneumatic butterfly valve, the first support assembly further includes a first roller, and the first roller is rotatably connected to the bottom of the first base.

[0011] As a preferred technical scheme of the above-mentioned handling device of pneumatic butterfly valve, the support assembly is provided with a guide groove, the first roller is arranged in the guide groove, and the first roller can rotate along the length direction of the guide groove.

[0012] As a preferred technical scheme of the above-mentioned handling device of pneumatic butterfly valve, the third support assembly includes a second base, a second support plate and a second roller, the second roller is rotatably connected to the bottom of the second base, the second roller is arranged in the guide groove, and the second roller can rotate along the guide groove, and the first support plate is connected to the top of the first base.

[0013] As a preferred technical scheme of the above-mentioned handling device of pneumatic butterfly valve, the handling device of pneumatic butterfly valve further includes a stopper, the stopper is detachably arranged in the guide groove, and the second roller can abut against the stopper.

[0014] As an optimal technical scheme of the above-mentioned device for disassembling and assembling the pneumatic butterfly valve, the device further comprises two baffles, the two baffles are arranged on the two sides of the guide groove respectively, and the two sides of the second roller are capable of abutting against the two baffles respectively.

[0015] As an optimal technical scheme of the above-mentioned device for disassembling and assembling the pneumatic butterfly valve, the device further comprises a driving member, the driving member is arranged on the support assembly, the driving member is located below the second supporting plate, the bottom wall of the second supporting plate is provided with a first guide hole, the output end of the driving member is capable of being inserted into the first guide hole, and the driving member is capable of driving the third supporting assembly to ascend or descend.

[0016] As an optimal technical scheme of the above-mentioned device for disassembling and assembling the pneumatic butterfly valve, the device further comprises a mounting member, the mounting member is connected to the support assembly, and the driving member is arranged on the mounting member.

[0017] The device has the following beneficial effects:

[0018] The utility model provides a device for disassembling and assembling a pneumatic butterfly valve. The pneumatic butterfly valve comprises a valve body, a yoke and an actuator, the yoke is connected to the actuator, the valve body is connected to the bottom of the yoke, and the device for disassembling and assembling the pneumatic butterfly valve comprises a support assembly, a first supporting assembly, a second supporting assembly, a third supporting assembly and a lifting assembly. The first supporting assembly and the third supporting assembly are both slidingly arranged on the support assembly, and are used for supporting the actuator. The second supporting assembly is arranged between the first supporting assembly and the third supporting assembly, and is used for supporting the yoke. The lifting assembly is arranged on the support assembly and is located below the second supporting assembly. The lifting assembly is capable of driving the second supporting assembly to ascend or descend. Compared with the prior art, the first supporting assembly, the second supporting assembly and the third supporting assembly are used for supporting the actuator and the yoke respectively, the pneumatic butterfly valve can be disassembled as a whole, the valve body can be removed by sliding the first supporting assembly and the third supporting assembly, the pneumatic butterfly valve can be assembled without being disassembled, the maintenance efficiency of the pneumatic butterfly valve is improved, and safety is improved. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical scheme in the embodiments of the utility model, the drawings needed to be used in the following description of the embodiments of the utility model will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained according to the contents of the embodiments of the utility model and the drawings by those skilled in the art without creating any creative labor.

[0020] Figure 1The structure schematic diagram of the working state of the loading and unloading device of the pneumatic butterfly valve is provided for the embodiment of the utility model.

[0021] Figure 2 The first structure schematic diagram of the loading and unloading device of the pneumatic butterfly valve is provided for the embodiment of the utility model.

[0022] Figure 3 The second structure schematic diagram of the loading and unloading device of the pneumatic butterfly valve is provided for the embodiment of the utility model.

[0023] Figure 4 The first structure schematic diagram of the second supporting assembly is provided for the embodiment of the utility model.

[0024] Figure 5 The second structure schematic diagram of the second supporting assembly is provided for the embodiment of the utility model.

[0025] Figure 6 The structure schematic diagram of the first supporting assembly is provided for the embodiment of the utility model.

[0026] In the drawing,

[0027] 1, valve body; 2, yoke; 3, actuator,

[0028] 4, support assembly; 41, guide groove; 42, support,

[0029] 5, first supporting assembly; 51, first base; 52, first supporting plate; 53, first roller,

[0030] 6, second supporting assembly; 61, first supporting plate; 62, second supporting plate; 621, second guide hole,

[0031] 7, third supporting assembly; 71, second base; 72, second supporting plate; 721, first guide hole; 73, second roller,

[0032] 8, lifting assembly; 81, hydraulic cylinder,

[0033] 9, stop block; 10, baffle; 11, driving piece; 12, mounting piece; 13, clamp,

[0034] 14, positioning piece; 141, positioning block; 142, locking piece; 15, pipeline. DETAILED DESCRIPTION

[0035] The utility model will be further explained in detail below in combination with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the utility model, and not limited to the utility model. In addition, it should be noted that in order to facilitate the description, only the part related to the utility model is shown in the drawings, not all the structures.

[0036] In the description of the utility model, unless another definite provision and limitation, the term "link", "connection", "fix" should be broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through the intermediate medium, can be two elements inside the communication or two element's mutual action relation.For the ordinary skilled in the art, the above-mentioned terms can be understood in the utility model according to the specific meaning of the specific circumstances.

[0037] In the utility model, unless another definite provision and limitation, the first feature is "on" or "under" the second feature can include the first and second features direct contact, also can include the first and second features is not direct contact but is through the contact between other features of them.And, the first feature is "on", "above" and "on" the second feature includes the first feature is directly above and obliquely above the second feature, or just indicates that the first feature horizontal height is higher than the second feature.The first feature is "under", "below" and "under" the second feature includes the first feature is directly below and obliquely below the second feature, or just indicates that the first feature horizontal height is less than the second feature.

[0038] In the description of the embodiment, the terms "on", "under", "left", "right" and other orientation or position relationship are based on the orientation or position relationship shown in the drawing, only for the convenience of description and simplification operation, and not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore cannot be understood as the limitation of the utility model.In addition, the terms "first", "second" are only used to distinguish in the description, and have no special meaning.

[0039] As Figures 1 to 6 The utility model provides a kind of loading and unloading device of pneumatic butterfly valve as shown in the figure.The pneumatic butterfly valve includes valve body 1, yoke 2 and actuating mechanism 3, yoke 2 is connected with actuating mechanism 3, valve body 1 is connected to the bottom of yoke 2, and the loading and unloading device of pneumatic butterfly valve includes: support assembly 4, first supporting assembly 5, second supporting assembly 6, third supporting assembly 7 and lifting assembly 8.

[0040] Specifically, the first supporting assembly 5 and the third supporting assembly 7 are both slidingly arranged in the bracket assembly 4, and the first supporting assembly 5 and the third supporting assembly 7 are used for supporting the actuator 3, the second supporting assembly 6 is arranged between the first supporting assembly 5 and the third supporting assembly 7, and the second supporting assembly 6 is used for supporting the yoke 2, the lifting assembly 8 is arranged in the bracket assembly 4 and below the second supporting assembly 6, and the lifting assembly 8 can drive the second supporting assembly 6 to rise or fall. Compared with the prior art, the first supporting assembly 5, the second supporting assembly 6 and the third supporting assembly 7 are used for supporting the actuator 3 and the yoke 2 respectively, the pneumatic butterfly valve can be disassembled as a whole, the valve body 1 can be moved out by sliding the first supporting assembly 5 and the third supporting assembly 7, the pneumatic butterfly valve is prevented from being disassembled and assembled, the maintenance efficiency of the pneumatic butterfly valve is improved, and safety is improved.

[0041] Optionally, the bracket assembly 4 comprises two brackets 42, the two brackets 42 are arranged in parallel and at intervals, and the two ends of the first supporting assembly 5 and the third supporting assembly 7 are slidingly arranged in the two brackets 42 respectively, and the valve body 1 is located between the two brackets 42.

[0042] Optionally, the first supporting assembly 5 comprises a first base 51 and a first supporting plate 52, the first base 51 is slidingly arranged in the bracket assembly 4, and the first supporting plate 52 is connected to the top of the first base 51. Specifically, the two ends of the first base 51 are slidingly connected with the two brackets 42 respectively, so that the first base 51 can slide along the length direction of the bracket 42, the first supporting plate 52 is fixed to the first base 51, the first supporting plate 52 is used for supporting the actuator 3, and the stability of the pneumatic butterfly valve is improved.

[0043] Further, the first supporting plate 52 is in a semicircular arc shape, which can be fitted with the outer wall of the actuator 3, and further improves the stability of the pneumatic butterfly valve.

[0044] Optionally, the first supporting assembly 5 further comprises a first roller 53, and the first roller 53 is rotatably connected to the bottom of the first base 51. Specifically, in this embodiment, the first supporting assembly 5 is provided with four first rollers 53, and the four first rollers 53 are arranged on the two sides of the first base 51 respectively, two first rollers 53 are arranged on each side, and the first rollers 53 on the two sides of the first base 51 are respectively located in the two brackets 42 and can rotate along the length direction of the bracket 42, so as to reduce the friction between the first base 51 and the bracket 42. Of course, in other embodiments, the number of first rollers 53 is determined according to actual conditions.

[0045] Optionally, the bracket assembly 4 is provided with a guide groove 41, and the first roller 53 is arranged in the guide groove 41 and can rotate along the length direction of the guide groove 41, so as to prevent the first supporting assembly 5 from deviating.

[0046] Optionally, the third supporting assembly 7 comprises a second base 71, a second supporting plate 72 and a second roller 73, the second roller 73 is rotatably connected to the bottom of the second base 71, the second roller 73 is arranged in the guide groove 41, and the second roller 73 can rotate along the length direction of the guide groove 41, and the first supporting plate 52 is connected to the top of the first base 51. Specifically, in the embodiment, the third supporting assembly 7 is provided with four second rollers 73, and the four second rollers 73 are arranged on both sides of the second base 71, two second rollers 73 on each side, and the second rollers 73 on both sides of the second base 71 are respectively located in the two brackets 42 and can rotate along the length direction of the guide groove 41, which can reduce the friction between the second base 71 and the bracket 42 and prevent the third supporting assembly 7 from deviating. Of course, in other embodiments, the number of second rollers 73 is determined according to actual conditions. Further, the second supporting plate 72 is in the shape of a semicircle, which can be attached to the outer wall of the actuator 3, further improving the stability of the high-gas-dynamic butterfly valve. Further, the inner diameter of the first supporting plate 52 and the second supporting plate 72 is determined according to the outer diameter of the actuator 3.

[0047] Optionally, the loading and unloading device of the high-gas-dynamic butterfly valve further comprises a stop block 9, the stop block 9 is detachably arranged in the guide groove 41, and the second roller 73 can abut against the stop block 9. Specifically, the loading and unloading device of the high-gas-dynamic butterfly valve is provided with a plurality of stop blocks 9, a plurality of connecting holes are arranged at intervals along the length direction of the guide groove 41 at the bottom of the guide groove 41, one end of the bolt can pass through the stop block 9 and be threadedly connected with the hole wall of the connecting hole, and a plurality of stop blocks 9 are arranged at the front and rear ends of the first roller 53 and the second roller 73, respectively, which can prevent the first roller 53 and the second roller 73 from rotating.

[0048] Optionally, the loading and unloading device of the high-gas-dynamic butterfly valve further comprises two baffle plates 10, the two baffle plates 10 are arranged on both sides of the guide groove 41, and the two sides of the second roller 73 can abut against the two baffle plates 10, respectively. Specifically, the loading and unloading device of the high-gas-dynamic butterfly valve is provided with a plurality of baffle plates 10, and each first roller 53 and each second roller 73 is provided with a baffle plate 10 on both sides, which can make the first roller 53 and the second roller 73 rotate along the length direction of the guide groove 41, make the first supporting assembly 5 and the third supporting assembly 7 move along the length direction of the guide groove 41, and prevent deviation.

[0049] Optionally, the pneumatic butterfly valve loading and unloading device further comprises a driving member 11, the driving member 11 is arranged on the support assembly 4, and the driving member 11 is located below the second supporting plate 72; the bottom wall of the second supporting plate 72 is provided with a first guide hole 721, and the output end of the driving member 11 can be inserted into the first guide hole 721; and the driving member 11 can drive the third supporting assembly 7 to ascend or descend. Specifically, the pneumatic butterfly valve loading and unloading device further comprises a clamp 13, the driving member 11 is fixed to the two supports 42 through the clamp 13, the stability of the driving member 11 is improved, the first guide hole 721 is located at the center position of the bottom wall of the second supporting plate 72, the second supporting plate 72 can be balanced in force, and the second supporting plate 72 is prevented from deviating. Further, the driving member 11 is a hydraulic cylinder 81.

[0050] Optionally, the pneumatic butterfly valve loading and unloading device further comprises a mounting member 12, the mounting member 12 is connected to the support assembly 4, and the driving member 11 is arranged on the mounting member 12. Specifically, the two ends of the mounting member 12 are connected to the two supports 42 respectively, and the clamp 13 is arranged on the mounting member 12, so that the stability of the clamp 13 is improved.

[0051] Optionally, the second supporting assembly 6 comprises two first supporting plates 61 and two second supporting plates 62, the first supporting plate 61 is in the shape of a Chinese character'', the recessed part of the first supporting plate 61 can be embedded into the yoke 2, the two first supporting plates 61 are arranged in the length direction of the support 42 and are spaced apart from each other, so that the two first supporting plates 61 are embedded into the two sides of the yoke 2 respectively, the second supporting plate 62 is in the shape of a semicircle, the two second supporting plates 62 are arranged in the width direction of the support 42 and are spaced apart from each other, and the bottom wall of the second supporting plate 62 is fixed to the first supporting plate 61 through a bolt, so that the two ends of the first supporting plate 61 are fixedly connected to the two second supporting plates 62 respectively, the bottom wall of the second supporting plate 62 is provided with a second guide hole 621, the lifting assembly 8 comprises two hydraulic cylinders 81, the two hydraulic cylinders 81 are arranged on the two supports 42 respectively, and the two hydraulic cylinders 81 are located below the two second guide holes 621 respectively, the output end of the hydraulic cylinder 81 can be inserted into the second guide hole 621, the yoke 2 is provided with supporting force, and the two second guide holes 621 and the first guide hole 721 form a triangular area, so that the center of gravity of the pneumatic butterfly valve falls in the center position of the area, and the pneumatic butterfly valve is ensured to be stably lifted upward.

[0052] Further, the lifting assembly 8 further comprises a plurality of positioning members 14, two positioning members 14 are arranged on the two sides of each hydraulic cylinder 81, and the two positioning members 14 can abut against the hydraulic cylinder 81, so that the hydraulic cylinder 81 is fixed. Specifically, the positioning member 14 comprises a positioning block 141 and a locking member 142, the positioning block 141 is mounted on the support 42, one end of the locking member 142 can pass through the positioning block 141 and abut against the hydraulic cylinder 81, and the stability of the hydraulic cylinder 81 is improved.

[0053] The use steps of the pneumatic butterfly valve loading and unloading device are as follows:

[0054] Step one: Place the first support plate 52 under the actuator 3 at the appropriate position, and push the two side blocks 9 to be in contact with the first roller 53 and the second roller 73 respectively, and fix the blocks 9 on the bracket 42;

[0055] Step two: Place the second support plate 72 under the actuator 3 at the appropriate position, install the mounting piece 12 on the two brackets 42, then set the driving piece 11 on the mounting piece 12, and fix it with the clamp 13;

[0056] Step three: Move the second base 71 to make the first guide hole 721 align with the driving piece 11, and push the two side blocks 9 to be in contact with the first roller 53 and the second roller 73 respectively, and fix the blocks 9 on the bracket 42;

[0057] Step four: Insert the grooves of the two first supporting plates 61 into the yoke 2, and then connect and fix the two first supporting plates 61 through the two second supporting plates 62;

[0058] Step five: Install the hydraulic cylinders 81, adjust the positions of the two hydraulic cylinders 81 to align with the second guide hole 621, and fix them through the positioning piece 14;

[0059] Step six: Loosen the connecting bolts between the valve and the pipeline 15, and then supply oil to the three hydraulic cylinders 81 synchronously through the hand pump, so that the first supporting assembly 5, the second supporting assembly 6 and the third supporting assembly 7 slightly lift the entire valve, and the first roller 53 and the second roller 73 at the highest position of the lifting shall not exceed the height of the baffle 10;

[0060] Step seven: Remove the gasket between the valve body 1 and the pipeline 15, so that there is a large enough gap between the valve body 1 and the pipeline 15, and at the same time, slowly release the pressure in the three hydraulic cylinders 81, so that the first roller 53 and the second roller 73 slowly fall back into the guide groove 41;

[0061] Step eight: Remove the three hydraulic cylinders 81 and their positioning devices, so that the bracket 42 is only left with the first supporting assembly 5, the second supporting assembly 6 and the third supporting assembly 7. After changing the limiting position of the block 9, pull out the valve along the guide groove 41 for maintenance. During the maintenance process, lock the block 9, and after the maintenance is completed, change the limiting position of the block 9 and pull back the valve to the original position for reinstallation.

[0062] In addition, the above is only the preferred embodiment of the present application and the applied technical principle. The person skilled in the art can understand that the present application is not limited to the specific embodiments described herein, and various obvious changes, re-adjustments and substitutions can be made by the person skilled in the art without departing from the protection scope of the present application. Therefore, although the present application has been described in more detail through the above embodiments, the present application is not limited to the above embodiments, and more other equivalent embodiments can be included without departing from the concept of the present application, and the scope of the present application is determined by the scope of the appended claims.

Claims

1. A device for handling a pneumatic butterfly valve, said pneumatic butterfly valve comprising a valve body (1), a yoke (2) and an actuator (3), said yoke (2) being connected to said actuator (3), said valve body (1) being connected to the bottom of said yoke (2), characterized in that, The pneumatic butterfly valve loading and unloading device comprises a support assembly (4), a first supporting assembly (5), a second supporting assembly (6), a third supporting assembly (7) and a lifting assembly (8), the first supporting assembly (5) and the third supporting assembly (7) are both slidingly arranged on the support assembly (4), and the first supporting assembly (5) and the third supporting assembly (7) are used for supporting the actuator (3), the second supporting assembly (6) is arranged between the first supporting assembly (5) and the third supporting assembly (7), and the second supporting assembly (6) is used for supporting the yoke (2), the lifting assembly (8) is arranged on the support assembly (4), and the lifting assembly (8) is located below the second supporting assembly (6), and the lifting assembly (8) can drive the second supporting assembly (6) to ascend or descend.

2. A device for handling a butterfly valve according to claim 1, characterized in that The first supporting assembly (5) comprises a first base (51) and a first supporting plate (52), the first base (51) is slidingly arranged on the support assembly (4), and the first supporting plate (52) is connected to the top of the first base (51).

3. A device for handling a pneumatic butterfly valve according to claim 2, characterized in that The first supporting plate (52) is in the shape of a semicircular arc.

4. The device according to claim 2, wherein The first supporting assembly (5) further comprises a first roller (53), and the first roller (53) is rotatably connected to the bottom of the first base (51).

5. A device for handling a pneumatic butterfly valve according to claim 4, characterized in that The support assembly (4) is provided with a guide groove (41), the first roller (53) is arranged in the guide groove (41), and the first roller (53) can rotate along the length direction of the guide groove (41).

6. A device for handling a pneumatic butterfly valve according to claim 5, characterized in that The third supporting assembly (7) comprises a second base (71), a second supporting plate (72) and a second roller (73), the second roller (73) is rotatably connected to the bottom of the second base (71), the second roller (73) is arranged in the guide groove (41), and the second roller (73) can rotate along the guide groove (41), and the first supporting plate (52) is connected to the top of the first base (51).

7. A device for handling a pneumatic butterfly valve according to claim 6, characterized in that The pneumatic butterfly valve loading and unloading device further comprises a stop block (9), the stop block (9) is detachably arranged in the guide groove (41), and the second roller (73) can abut against the stop block (9).

8. A device for handling a pneumatic butterfly valve according to claim 6, characterized in that The pneumatic butterfly valve loading and unloading device further comprises two baffle plates (10), the two baffle plates (10) are arranged on the two sides of the guide groove (41) respectively, and the two sides of the second roller (73) can abut against the two baffle plates (10) respectively.

9. The device of claim 6, wherein, The pneumatic butterfly valve loading and unloading device further comprises a driving member (11), the driving member (11) is arranged on the support assembly (4), and the driving member (11) is located below the second supporting plate (72), a bottom wall of the second supporting plate (72) is provided with a first guide hole (721), an output end of the driving member (11) can be inserted into the first guide hole (721), and the driving member (11) can drive the third supporting assembly (7) to ascend or descend.

10. A device for handling a pneumatic butterfly valve according to claim 9, characterized in that The handling device of the pneumatic butterfly valve further comprises a mounting member (12) connected to the bracket assembly (4), and the driving member (11) is arranged on the mounting member (12).

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