Device for buckling and positioning sealing plug of hydraulic valve

Abstract

The utility model relates to the technical field of hydraulic valves, and discloses a device for buckling and positioning a sealing plug of a hydraulic valve, the sealing plug comprises a plug body and a sealing ring, the sealing ring sleeves the plug body, a positioning groove is formed in the top of the plug body, and the device for buckling and positioning the sealing plug of the hydraulic valve comprises a bottom plate, a top plate, a positioning piece and a buckling pressure head. The top plate is movably arranged on the upper side of the bottom plate and is provided with a positioning through hole in the middle; the positioning piece can be in sliding connection with the positioning through hole, and the lower end can be inserted into the positioning groove; a buckling groove is formed in the lower end of the buckling pressing head and can be buckled on the top of the plug body in a buckled mode. According to the method and the device, during buckling operation, the risk of buckling deviation can be reduced, and the risk of loose buckling can be reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of hydraulic valve, for example, relates to a device for positioning sealing plugging of hydraulic valve. BACKGROUND

[0002] At present, when the hydraulic valve body is processed, some process holes need to be processed in order to make the oil channel communicate. These redundant process holes need to be closed during the valve body assembly. The common sealing methods in hydraulic technology include mechanical sealing method, welding sealing method, sealing glue sealing method, expansion plug sealing method and sealing plugging sealing method. Among them, the sealing plugging is convenient to install and occupies small space.

[0003] For the sealed hole with small diameter, the installation of the existing sealing plug is to first place the sealing plug at the hole edge of the sealed hole, and then press the sealing plug into the sealed hole through the buckling head and the press.

[0004] In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art:

[0005] Since the size of the sealing plug and the size of the buckling end of the buckling head are relatively small, the risk of buckling deviation is large during buckling operation, and it is easy to cause buckling not tight.

[0006] It should be noted that the information disclosed in the above background section is only used to strengthen the understanding of the background of the present application, and therefore can include information that does not constitute prior art known to those of ordinary skill in the art. Content of the utility model

[0007] In order to have a basic understanding of some aspects of the disclosed embodiments, the following is a simple summary. The summary is not a general review, nor is it intended to determine the key / important elements or delineate the scope of protection of these embodiments, but as a prelude to the detailed description below.

[0008] The embodiments of the present disclosure provide a device for positioning sealing plugging of hydraulic valve, so as to reduce the risk of buckling deviation and the risk of buckling not tight during buckling operation.

[0009] In some embodiments, the sealing plug includes a plug body and a sealing ring, the sealing ring is sleeved on the plug body, the top of the plug body is provided with a positioning groove, and the device for positioning sealing plugging of hydraulic valve includes a bottom plate, a top plate, a positioning member and a buckling head. The top plate is movably arranged on the upper side of the bottom plate and is provided with a positioning through hole in the middle; the positioning member is slidably connected with the positioning through hole and the lower end is inserted into the positioning groove; the buckling head is slidably connected with the positioning through hole and the lower end is provided with a buckling groove capable of buckling on the top of the plug body.

[0010] Optionally, the lower end of the buckling head is gradually narrowed.

[0011] Optionally, the positioning member is a positioning rod, and the lower end of the positioning rod is a conical structure.

[0012] Optionally, the device for positioning the hydraulic valve sealing plug further comprises a driving member. The driving member is arranged on the side surface of the bottom plate, and the output end of the driving member is connected with the top plate.

[0013] Optionally, the side surface of the bottom plate is provided with a side plate, and the driving member is mounted on the side plate.

[0014] Optionally, the driving member is a pneumatic cylinder, and the output shaft of the output end of the pneumatic cylinder penetrates through the top plate and is connected with the top plate.

[0015] Optionally, the pneumatic cylinder is detachably connected with the side plate.

[0016] Optionally, the side surface of the bottom plate facing the top plate is provided with an adjusting pad plate.

[0017] Optionally, the length of the top plate is greater than the length of the bottom plate.

[0018] Optionally, the length of the positioning through hole is less than the length of the positioning member and the length of the clamping head.

[0019] The device for positioning the hydraulic valve sealing plug provided by the embodiments of the present disclosure can achieve the following technical effects:

[0020] The hydraulic valve is placed on the bottom plate, so that the hydraulic valve is located between the bottom plate and the top plate. The plug body and the sealing ring are placed at the hole along of the plugged hole of the hydraulic valve, and the positioning groove at the top of the plug body faces upward. The positioning member is inserted into the positioning through hole until the bottom of the positioning member is inserted into the positioning groove, so that the axis of the positioning through hole coincides with the positioning groove. The top plate is moved toward the bottom plate until the top plate abuts against the hydraulic valve, and the hydraulic valve is clamped and fixed by the top plate and the bottom plate, thereby completing the positioning operation. The positioning member is taken out of the positioning through hole, and the clamping head is inserted into the positioning through hole until the clamping groove of the positioning through hole clamps the top of the plug body. The top of the clamping head is pressed by the press, and the clamping head further presses the plug body and the sealing ring into the plugged hole, thereby completing the clamping and plugging operation. The positioning through hole provides guidance for the clamping head, so that the clamping head can accurately clamp the top of the plug body, and the risk of shaking and deviation of the clamping head during clamping is reduced, and the risk of loose clamping is reduced.

[0021] The foregoing general description and the following description are only exemplary and explanatory, and are not used to limit the present application. BRIEF DESCRIPTION OF DRAWINGS

[0022] One or more embodiments are exemplarily illustrated by corresponding drawings, which are exemplary and explanatory, and do not constitute limitation on the embodiments, and elements with the same reference numerals in the drawings are shown as similar elements, the drawings do not constitute proportional limitation, and wherein:

[0023] Figure 1 is a structural schematic diagram of a device for positioning a hydraulic valve sealing plug according to an embodiment of the present disclosure;

[0024] Figure 2 is a structural schematic diagram of another side of a device for positioning a hydraulic valve sealing plug according to an embodiment of the present disclosure;

[0025] Figure 3 is a structural schematic diagram of a positioning rod according to an embodiment of the present disclosure;

[0026] Figure 4 is an exploded schematic diagram of a device for positioning a hydraulic valve sealing plug according to an embodiment of the present disclosure.

[0027] Reference signs:

[0028] 100, bottom plate; 101, limiting groove; 102, positioning hole; 200, top plate; 201, positioning through hole; 300, positioning member; 310, positioning rod; 400, pressing head; 401, pressing groove; 500, driving member; 510, air cylinder; 520, nut; 600, side plate; 700, adjusting pad; 701, inner groove; 710, limiting block. DETAILED DESCRIPTION

[0029] In order to enable a more detailed understanding of the features and technical content of the embodiments of the present disclosure, the implementation of the embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings, which are only used for reference and do not limit the embodiments of the present disclosure. In the following technical description, in order to facilitate explanation, through multiple details, a sufficient understanding of the disclosed embodiments is provided. However, one or more embodiments can still be implemented without these details. In other cases, in order to simplify the drawings, well-known structures and devices can be simplified.

[0030] The terms "first", "second", and the like in the specification and claims of the embodiments of the present disclosure and the above-mentioned drawings are used to distinguish similar objects, and do not necessarily have to describe a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present disclosure described herein can be implemented. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion.

[0031] In the embodiments of the present disclosure, the terms "upper", "lower", "inner", "middle", "outer", "front", "back" and the like indicate the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the embodiments of the present disclosure and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation. In addition, in addition to indicating the orientation or positional relationship, the above-mentioned part of the terms can also be used to represent other meanings, for example, the term "upper" can also be used to represent a certain dependent relationship or connection relationship in some cases. For those skilled in the art, the specific meaning of these terms in the embodiments of the present disclosure can be understood according to the specific circumstances.

[0032] In addition, the terms "set", "connected", "fixed" should be broadly understood. For example, "connected" can be fixedly connected, detachably connected, or integrally configured; can be mechanically connected, or electrically connected; can be directly connected, or indirectly connected through an intermediate medium, or internal communication between two devices, elements or components. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present disclosure can be understood according to the specific circumstances.

[0033] Unless otherwise specified, the term "a plurality of" means two or more.

[0034] In the embodiments of the present disclosure, the character " / " represents an "or" relationship between the objects before and after it. For example, A / B means: A or B.

[0035] The term "and / or" is a description of the association between objects, which means that there can be three relationships. For example, A and / or B means: A or B, or, A and B, the three relationships.

[0036] It should be noted that the embodiments in the embodiments of the present disclosure and the features in the embodiments can be combined with each other without conflict.

[0037] In combination Figures 1-2 As shown in the drawings, the embodiments of the present disclosure provide a device for positioning the sealing plug of the hydraulic valve, the sealing plug includes a plug body and a sealing ring, the sealing ring is sleeved on the plug body, the top of the plug body is provided with a positioning groove, and the device for positioning the sealing plug of the hydraulic valve includes a bottom plate 100, a top plate 200, a positioning piece 300 and a pressing head 400. The top plate 200 is movably arranged on the upper side of the bottom plate 100, and a positioning through hole 201 is arranged in the middle; the positioning piece 300 is slidably connected with the positioning through hole 201, and the lower end can be inserted into the positioning groove; the pressing head 400 is slidably connected with the positioning through hole 201, and the lower end is provided with a pressing groove 401, which can be pressed on the top of the plug body.

[0038] The device for positioning the plugging and buckling of the sealing of the hydraulic valve is used to place the hydraulic valve on the bottom plate 100, so that the hydraulic valve is located between the bottom plate 100 and the top plate 200. Then, the plug body and the sealing ring are placed at the hole along of the plugged hole of the hydraulic valve, and the positioning groove at the top of the plug body faces upward. The positioning member 300 is inserted into the positioning through hole 201 until the bottom of the positioning member 300 is inserted into the positioning groove, so that the axis of the positioning through hole 201 coincides with the positioning groove. The top plate 200 is moved toward the bottom plate 100 until the top plate 200 abuts against the hydraulic valve, so that the hydraulic valve is clamped and fixed by the top plate 200 and the bottom plate 100, thereby completing the positioning operation. Then, the positioning member 300 is taken out of the positioning through hole 201, and the buckling pressure head 400 is inserted into the positioning through hole 201 until the buckling groove 401 of the positioning through hole 201 buckles at the top of the plug body. The top of the buckling pressure head 400 is pressed by the press, and the buckling pressure head 400 further presses the plug body and the sealing ring into the plugged hole, thereby completing the buckling and plugging operation. The positioning through hole 201 provides a guide for the buckling pressure head 400, so that the buckling pressure head 400 can be accurately buckled at the top of the plug body, thereby reducing the risk of shaking and deviation of the buckling pressure head 400 in the buckling process and reducing the risk of loose buckling.

[0039] It can be understood that the positioning member 300 clamps the plug body with the plugged hole, and the bottom of the positioning member 300 is inserted into the positioning groove, so that the positioning member 300 can limit the plug body and reduce the risk of shaking of the plug body.

[0040] It can be understood that the shape of the buckling groove 401 corresponds to the shape of the top of the plug body, different plug bodies correspond to different shapes of the buckling groove 401, so that the top of the plug body is tightly matched with the buckling groove 401, thereby reducing the risk of shaking of the plug body in the buckling process.

[0041] Optionally, the top plate 200 and / or the bottom plate 100 are made of cast iron material. In this way, in the case that the top plate 200 is made of cast iron material, in the case that the bottom plate 100 is made of cast iron material, and in the case that the top plate 200 and the bottom plate 100 are both made of cast iron material, the strength of the top plate 200 and the bottom plate 100 is relatively high.

[0042] Optionally, the top plate 200 and / or the bottom plate 100 are rectangular plate structures. In this way, in the case that the top plate 200 is a rectangular plate structure, in the case that the bottom plate 100 is a rectangular plate structure, and in the case that the top plate 200 and the bottom plate 100 are both rectangular plate structures, the shapes of the top plate 200 and the bottom plate 100 are relatively regular, and the manufacturing is relatively simple.

[0043] Specifically, the positioning through hole 201 is a circular hole structure. In this way, the shape of the positioning through hole 201 is relatively regular.

[0044] Optionally, the top edge of the positioning hole 201 is provided with a chamfer. In this way, the chamfer at the edge of the hole can provide a guide for the insertion of the positioning member 300 into the positioning hole 201, making the insertion more convenient. The chamfer at the edge of the hole can provide a guide for the insertion of the buckling head 400 into the positioning hole 201, making the insertion more convenient.

[0045] Optionally, the lower end of the buckling head 400 is tapered. In this way, the lower end of the buckling head 400 is relatively narrow, facilitating the insertion of the buckling head 400 into the positioning hole 201, and providing a guide for the part of the buckling head 400 that is not tapered, reducing the difficulty of insertion and installation.

[0046] Optionally, the lower end of the buckling head 400 is in the shape of a circular truncated cone. In this way, the lower end of the buckling head 400 is relatively narrow, making it easier to insert into the positioning hole 201, and the lower side of the buckling head 400 has a relatively large area for the buckling groove 401. In the case where the buckling groove 401 is buckled on the plug body, the area of the lower side of the buckling head 400 in contact with the plug body is also relatively large, reducing the risk of the plug body shaking during buckling and plugging operations.

[0047] Optionally, the maximum diameter of the buckling head 400 is the same as the diameter of the positioning hole 201. In this way, the buckling head 400 can be more tightly inserted into the positioning hole 201, reducing the risk of the buckling head 400 shaking in the positioning hole 201, and improving the accuracy of buckling and plugging operations.

[0048] It can be understood that the maximum diameter of the buckling head 400 refers to the diameter of the part of the buckling head 400 other than the tapered end.

[0049] In combination with Figure 3 Optionally, the positioning member 300 is a positioning rod 310, and the lower end of the positioning rod 310 is in the shape of a circular cone. In this way, the lower end of the positioning rod 310 is relatively narrow, making it relatively easy to insert into the positioning hole 201. It is also relatively easy for the lower end of the positioning rod 310 to be inserted into the positioning groove of the plug body.

[0050] Optionally, the diameter of the positioning rod 310 is the same as the diameter of the positioning hole 201. In this way, the positioning rod 310 can be more tightly inserted into the positioning hole 201, reducing the risk of the positioning rod 310 shaking in the positioning hole 201, and improving the accuracy of the positioning operation.

[0051] Optionally, the length of the positioning rod 310 is greater than the length of the pressing head 400. In this way, since the hydraulic valve needs to be placed between the top plate 200 and the bottom plate 100, the initial interval between the top plate 200 and the bottom plate 100 needs to be greater than the height of the hydraulic valve. The positioning rod 310 is inserted into the positioning hole 201 and the positioning groove on the top of the plug body. If the length of the positioning rod 310 is relatively short, the positioning rod 310 is more likely to be pulled out of the positioning hole 201 when it is inserted into the positioning groove.

[0052] In combination Figure 4 As shown, optionally, the device for sealing and plugging the hydraulic valve also includes a driving member 500. The driving member 500 is arranged on the side of the bottom plate 100, and the output end of the driving member 500 is connected to the top plate 200. In this way, the driving member 500 provides power for the movement of the top plate 200 towards or away from the bottom plate 100, thereby automatically adjusting the interval between the top plate 200 and the bottom plate 100. The driving member 500 can also provide power for the clamping of the hydraulic valve by the top plate 200 and the bottom plate 100, and the stability of the clamping of the hydraulic valve is relatively high.

[0053] Optionally, the side plate 600 is arranged on the side of the bottom plate 100, and the driving member 500 is mounted on the side plate 600. In this way, the area of the side plate 600 connected to the driving member 500 is relatively large, and the stability of the connection is relatively high.

[0054] Optionally, a plurality of side plates 600 are arranged on the opposite sides of the bottom plate 100, and one driving member 500 is arranged on each side plate 600. In this way, the number of driving members 500 and side plates 600 is relatively large, the output ends of the plurality of driving members 500 are connected to the top plate 200 at the same time, the stability of the connection is relatively high, and the stability of the clamping of the hydraulic valve by the top plate 200 and the bottom plate 100 is improved.

[0055] Specifically, two side plates 600 are arranged on the opposite sides of the bottom plate 100, and one driving member 500 is arranged on each side plate 600. In this way, the output ends of the two driving members 500 are connected to the top plate 200, and the two driving members 500 are located on the opposite sides of the bottom plate 100, the span of the connection is relatively large, and the stability of the connection is relatively high.

[0056] Optionally, the side plate 600 is detachably connected to the bottom plate 100. In this way, since the sizes of the hydraulic valves are not the same, the side plate 600 can be detached from the bottom plate 100, and a side plate 600 of a corresponding size can be replaced, and the adaptation effect is relatively good. After the bottom plate 100 and the side plate 600 are detached, they can be stacked together, reducing the occupied volume and facilitating carrying.

[0057] Optionally, the bolt is screwed through the side plate 600 and the bottom plate 100. In this way, the side plate 600 is fixed on the bottom plate 100 by the bolt, and the disassembly and assembly are more convenient.

[0058] Optionally, the driving member 500 is a cylinder 510, and an output shaft of an output end of the cylinder 510 penetrates the top plate 200 and is connected with the top plate 200. In this way, the output shaft of the output end of the cylinder 510 penetrates the top plate 200, and the area of the connection between the output shaft of the output end of the cylinder 510 and the top plate 200 is relatively large, and the stability of the connection is relatively high, and the risk of shaking of the top plate 200 is reduced.

[0059] It can be understood that the driving member 500 can also be an electric push cylinder, a hydraulic cylinder or other common power components.

[0060] Optionally, the upper side and the lower side of the top plate 200 are provided with nuts 520, and the nuts 520 are screwed with the output shaft of the output end of the cylinder 510. In this way, the output shaft of the output end of the cylinder 510 penetrates the top plate 200, and the upper side and the lower side of the top plate 200 are provided with the nuts 520 screwed with the output shaft of the output end of the cylinder 510. The position of the top plate 200 relative to the output shaft of the output end of the cylinder 510 is limited by the nuts 520, and the position of the top plate 200 relative to the output shaft of the output end of the cylinder 510 can also be adjusted by rotating the nuts 520, and the interval between the top plate 200 and the bottom plate 100 is adjusted, and different sizes of hydraulic valves are adapted.

[0061] Optionally, the top plate 200 is provided with a through hole, and the output shaft of the output end of the cylinder 510 is in sliding connection with the through hole. In this way, the area of the connection between the through hole and the output shaft of the output end of the cylinder 510 is relatively large, and the stability of the connection is relatively high.

[0062] Optionally, the cylinder 510 is detachably connected with the side plate 600. In this way, the cylinder 510 is detached from the side plate 600, and the maintenance and replacement of the cylinder 510 are more convenient.

[0063] Optionally, the bolt is screwed through the mounting through hole reserved on the cylinder 510 and the side plate 600. In this way, the cylinder 510 is fixed on the side plate 600 by the bolt, and the disassembly and assembly of the cylinder 510 on the side plate 600 are more convenient.

[0064] Optionally, the side of the bottom plate 100 facing the top plate 200 is provided with an adjusting pad 700. In this way, due to the different sizes of the hydraulic valve, the adjusting pad 700 is arranged between the bottom plate 100 and the hydraulic valve, the interval between the hydraulic valve and the top plate 200 is adjusted, and the top plate 200 better clamps the hydraulic valve.

[0065] Optionally, a limiting groove 101 is arranged on the upper side wall of the bottom plate 100, and a limiting protrusion 710 is arranged on the bottom side wall of the adjusting pad 700, and the limiting protrusion 710 is inserted into the limiting groove 101. In this way, the limiting protrusion 710 on the adjusting pad 700 is inserted into the limiting groove 101, which can avoid the shaking of the adjusting pad 700 relative to the bottom plate 100, and the stability is relatively high.

[0066] Optionally, a plurality of adjusting pads 700 are arranged, and the upper side wall of each adjusting pad 700 is provided with an inner groove 701 corresponding to the limiting protrusion 710. In this way, among the two adjacent adjusting pads 700, the limiting protrusion of the upper adjusting pad 700 can be inserted into the inner groove 701 of the lower adjusting pad 700, which can avoid the relative shaking between the two adjacent adjusting pads 700, and the stability is relatively high.

[0067] Optionally, the bottom plate 100 is provided with a positioning hole 102. In this way, the bottom plate 100 can be fixed on the press machine through the positioning hole 102, and the risk of shaking of the bottom plate 100 relative to the press machine is relatively low.

[0068] Optionally, the positioning hole 102 is provided with two, which are arranged at the opposite ends of the bottom plate 100. In this way, the position of the bottom plate 100 fixed on the press machine is relatively more, and the span between the fixed positions is relatively large, which further reduces the risk of shaking of the bottom plate 100 relative to the press machine.

[0069] Optionally, the length of the top plate 200 is greater than the length of the bottom plate 100. In this way, the length of the top plate 200 is relatively large, the range covered by the top plate 200 is relatively large, the area of the top plate 200 in contact with the hydraulic valve is relatively large, and the stability of the fixed clamping is relatively high.

[0070] Optionally, the length of the top plate 200 is greater than 1.1 times the length of the bottom plate 100. In this way, since the side plates 600 and the driving members 500 are arranged on both sides of the bottom plate 100, the length of the top plate 200 is relatively large, which is matched with the positions of the side plates 600 and the driving members 500.

[0071] Optionally, the width of the top plate 200 is greater than the width of the bottom plate 100. In this way, the width of the top plate 200 is relatively large, the range covered by the top plate 200 is relatively large, the area of the top plate 200 in contact with the hydraulic valve is relatively large, and the stability of the fixed clamping is relatively high.

[0072] Optionally, the width of the top plate 200 is greater than 1.1 times the width of the bottom plate 100. In this way, the width of the top plate 200 is relatively large, the range covered by the top plate 200 is relatively large, the area of the top plate 200 in contact with the hydraulic valve is relatively large, and the stability of the fixed clamping is relatively high.

[0073] Optionally, the length of the positioning through hole 201 is less than the length of the positioning member 300 and the length of the buckling pressure head 400. In this way, the positioning member 300 can protrude from the upper end of the positioning through hole 201, facilitating the operation of inserting the positioning member 300 into the positioning groove. The buckling pressure head 400 can protrude from the upper end of the positioning through hole 201, facilitating the direct abutment of the pressure machine with the buckling pressure head 400, and exerting pressure on the plug body and the sealing ring through the buckling pressure head 400.

[0074] Specifically, the length of the positioning rod 310 is greater than the length of the positioning through hole 201.

[0075] The above description and drawings sufficiently illustrate the embodiments of the present disclosure to enable one skilled in the art to practice them. Other embodiments can include structural and other changes. The embodiments represent only the possible variations. Individual components and functions are optional unless explicitly required, and the order of operations can be changed. Parts and features of some embodiments can be included or replaced by parts and features of other embodiments. The embodiments of the present disclosure are not limited to the structures described above and shown in the drawings, and various modifications and changes can be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A device for positioning a sealing plug of a hydraulic valve, the sealing plug comprising a plug body and a sealing ring, the sealing ring being sleeved on the plug body, a top of the plug body being provided with a positioning groove, characterized in that, The device for positioning the hydraulic valve sealing plug includes: a bottom plate (100); a top plate (200) movably arranged on the upper side of the bottom plate (100) and provided with a positioning through hole (201); a positioning member (300) slidably connected with the positioning through hole (201) and having a lower end inserted into a positioning groove; a buckling pressure head (400) slidably connected with the positioning through hole (201) and provided with a buckling groove (401) at the lower end, the buckling groove (401) being capable of buckling on the top of the plug body.

2. The device for positioning the hydraulic valve sealing plug according to claim 1, wherein the lower end of the buckling pressure head (400) is tapered.

3. The device for positioning the hydraulic valve sealing plug according to claim 1, wherein the positioning member (300) is a positioning rod (310), and the lower end of the positioning rod (310) is a conical structure. Further comprising: a driving member (500) arranged on the side of the bottom plate (100), and an output end of the driving member (500) being connected with the top plate (200).

4. The device for hydraulic valve seal plugging, hold down positioning of claim 1, wherein, 5. The device for positioning the hydraulic valve sealing plug according to claim 4, wherein the side of the bottom plate (100) is provided with a side plate (600), and the driving member (500) is mounted on the side plate (600).

6. The device for positioning the hydraulic valve sealing plug according to claim 4, wherein the driving member (500) is a pneumatic cylinder (510), and an output shaft of the output end of the pneumatic cylinder (510) penetrates through the top plate (200) and is connected with the top plate (200).

7. The device for positioning the hydraulic valve sealing plug according to claim 6, wherein the pneumatic cylinder (510) is detachably connected with the side plate (600).

8. The device for positioning the hydraulic valve sealing plug according to any one of claims 1 to 7, wherein the side of the bottom plate (100) facing the top plate (200) is provided with an adjusting pad plate (700).

9. The device for positioning the hydraulic valve sealing plug according to any one of claims 1 to 7, wherein the length of the top plate (200) is greater than the length of the bottom plate (100).

10. The device for positioning the hydraulic valve sealing plug according to any one of claims 1 to 7, wherein the length of the positioning through hole (201) is less than the length of the positioning member (300) and the length of the buckling pressure head (400). ​ ​ ​ ​ ​ ​ ​ ​

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