CN119897723A - A gate valve clamping device - Google Patents
A gate valve clamping device Download PDFInfo
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- CN119897723A CN119897723A CN202510329433.XA CN202510329433A CN119897723A CN 119897723 A CN119897723 A CN 119897723A CN 202510329433 A CN202510329433 A CN 202510329433A CN 119897723 A CN119897723 A CN 119897723A
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- base
- gate valve
- clamping device
- valve
- facing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
- B23Q3/062—Work-clamping means adapted for holding workpieces having a special form or being made from a special material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B5/00—Turning-machines or devices specially adapted for particular work; Accessories specially adapted therefor
- B23B5/06—Turning-machines or devices specially adapted for particular work; Accessories specially adapted therefor for turning valves or valve bodies
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sliding Valves (AREA)
Abstract
本申请适用于阀门加工维修技术领域，提供了一种闸阀夹持装置，包括底座、设于底座上的楔形块以及设于底座上的多个紧固件，楔形块具有朝向底座的第一表面，以及朝向闸阀的第二表面，第一表面和第二表面之间呈夹角设置，各紧固件的一端用于固定在底座上，另一端用于抵靠在所述闸阀的至少一部分的背离底座一侧的表面且避让待加工面；借由楔形块，以及通过设置第二表面相对于第一表面的倾斜程度，使其适配于闸阀的朝向阀座的一侧相对于阀座径向平面的倾斜程度，从而可使密封面保持在平行于工作表面的方位，通过多个紧固件对阀座至少部分表面的限制，使得闸阀以所需要的角度保持在底座上，在对密封面进行加工时，可以保证密封面的加工准确性。
The present application is applicable to the technical field of valve processing and maintenance, and provides a gate valve clamping device, including a base, a wedge block arranged on the base, and a plurality of fasteners arranged on the base, the wedge block having a first surface facing the base, and a second surface facing the gate valve, the first surface and the second surface being arranged at an angle, one end of each fastener being used to be fixed on the base, and the other end being used to abut against a surface of at least a part of the gate valve that is away from the base and avoids a surface to be processed; by means of the wedge block, and by setting the inclination of the second surface relative to the first surface, it is adapted to the inclination of a side of the gate valve facing the valve seat relative to a radial plane of the valve seat, so that the sealing surface can be maintained in a position parallel to the working surface, and by limiting at least part of the surface of the valve seat by a plurality of fasteners, the gate valve is maintained on the base at a required angle, and when the sealing surface is processed, the processing accuracy of the sealing surface can be guaranteed.
Description
Technical Field
The application relates to the technical field of valve machining and maintenance, in particular to a gate valve clamping device.
Background
In the technical field of pipeline valves, the sealing pair of the wedge-shaped gate valve has a simple structure and reliable performance, so that the wedge-shaped gate valve is widely used in a nuclear power station system as an important system isolation boundary. In order to ensure reliable sealing performance of the valve, the valve clack of the wedge-shaped gate valve adopts a V-shaped structural design, and as shown in fig. 1 and 2, two sides of the valve clack are respectively provided with a sealing surface, and the sealing surfaces are usually hard alloy overlaying layers so as to ensure hardness and wear resistance. Due to the manufacturing process of manufacturers, complex operation conditions on site and the like, cracks can occur on the sealing surface of the valve clack, so that the valve is leaked, and the stable operation of the unit is influenced. In the maintenance work of the valve, the sealing surface of the alloy overlaying layer is required to be removed by turning, and then repair welding is carried out to restore the sealing performance of the valve.
Because the valve clack of the wedge-shaped gate valve is in an irregular shape, the valve clack is required to be reliably fixed in the turning repair process after turning removal and surfacing welding so as to ensure that the sealing surface after turning is kept at a required angle.
Disclosure of Invention
The embodiment of the application aims to provide a gate valve which can be reliably fixed according to a required angle.
The embodiment of the application discloses a gate valve clamping device, which comprises a base, a wedge-shaped block arranged on the base and a plurality of fasteners arranged on the base, wherein the wedge-shaped block is provided with a first surface facing the base and a second surface facing the gate valve, an included angle is formed between the first surface and the second surface, one end of each fastener is used for being fixed on the base, and the other end of each fastener is used for abutting against at least one part of the surface of the gate valve, which is far away from one side of the base, and avoiding a surface to be processed.
In one embodiment, the wedge block is provided with a sinking groove, the sinking groove penetrates through the wedge block along the axial direction of the base, the gate valve clamping device further comprises a first locking piece, one end of the first locking piece is fixed on the base, and the other end of the first locking piece is located in the sinking groove.
In one embodiment, the wedge block further has a third surface connected to the first surface and the second surface at a far end, the sink is connected to the third surface, and one end of the first locking member is detachably fixed on the base.
In one embodiment, the gate valve comprises guide rail parts positioned at two sides of the first direction, guide grooves along the second direction are formed in the guide rail parts, the first direction and the second direction are perpendicular to the axial direction of the base, the fasteners comprise at least two first fasteners, a first limiting plate is arranged at the other end of each first fastener, and the first limiting plate is used for abutting against the surface, facing away from the base, of the guide rail part.
In one embodiment, the first fastener includes first fastening plate and second locking piece, the one end of first fastening plate deviating from the base is equipped with first limiting plate, be equipped with on the first limiting plate along the axial of base runs through the second screw hole, the second locking piece can with two screw holes meshing.
In one embodiment, one end of the first fastening plate facing the base is provided with a second limiting plate protruding away from the gate valve, the base is provided with a third threaded hole, and the first fastening member further comprises a third locking member, and the third locking member penetrates through the second limiting plate and is meshed with the third threaded hole.
In one embodiment, the second limiting plate is provided with a first through hole, and the first through hole penetrates through to one side end face of the first limiting plate, which is away from the gate valve.
In one embodiment, the gate valve comprises two valve clacks, wherein one sides of the valve clacks, which are away from each other, are respectively provided with the surfaces to be processed, one sides of the valve clacks, which are close to each other, are provided with connecting parts, gaps surrounding the connecting parts are formed at the peripheries of one sides of the valve clacks, which are close to each other, the fastening pieces comprise at least one second fastening piece, and one valve clack, which is close to the base, is positioned between the base and one end, which is away from the base, of the second fastening piece.
In one embodiment, at least one second fastener is disposed at one end of the valve clack along the second direction, the second fastener includes a first threaded column, a support column, a fourth locking member and a first pressing plate, the first threaded column and the support column are all disposed on the base, a second through hole capable of penetrating the first threaded column is formed in the first pressing plate, one end, facing away from the base, of the support column is used for abutting against the surface, facing towards the base, of the first pressing plate, and the fourth locking member is disposed at one side, facing away from the base, of the first pressing plate and can be meshed with the first threaded column.
In one embodiment, the other end of the valve clack along the second direction is further provided with an avoidance hole penetrating along the axial direction of the base and communicated with the outer edge of the valve clack, at least one second fastener comprises a second threaded column, a second pressing plate and a fifth locking piece, the second threaded column is arranged on the base, the second pressing plate is provided with a third through hole capable of penetrating through the second threaded column, and the fifth locking piece is arranged on one side, away from the base, of the second pressing plate and can be meshed with the second threaded column.
The gate valve clamping device provided by the embodiment of the application has the beneficial effects that:
According to the gate valve clamping device provided by the embodiment of the application, the second surface of the wedge-shaped block is inclined relative to the first surface, and the inclination degree of the second surface relative to the first surface is set to be suitable for the inclination degree of one side of the gate valve facing the valve seat relative to the radial plane of the valve seat, so that the sealing surface can be kept in a direction parallel to the working surface.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic perspective view of a gate valve;
FIG. 2 is a schematic side view of a gate valve;
fig. 3 is a schematic perspective view of a gate valve clamping device according to an embodiment of the present application;
Fig. 4 is an exploded view of a gate valve clamping device according to an embodiment of the present application;
Fig. 5 is a schematic side view of a gate valve clamping device according to an embodiment of the present application;
fig. 6 is a schematic cross-sectional view of a wedge block in a gate valve clamping device according to an embodiment of the present application;
FIG. 7 is a schematic perspective view showing the assembly of a gate valve clamping device and a gate valve according to an embodiment of the present application;
Fig. 8 is a schematic side view of a gate valve clamping device and gate valve assembly according to an embodiment of the present application.
The meaning of the labels in the figures is:
91-gate valve, 910-sealing surface, 911-valve clack, 912-connecting part, 913-gap, 914-guide rail part, 9140-guide groove, 915-avoiding hole;
92-valve seat, 920-end face, 93-pipe;
100-a gate valve clamping device;
1-a base, 10-a working surface, 11-a first threaded hole, 13-a third threaded hole;
2-wedge block, 20-sink, 201-first section, 202-second section, 203-step surface, 21-first surface, 22-second surface, 23-third surface;
3-a fastener;
31-a first fastener, 311-a first fastening plate, 312-a first limiting plate, 3120-a second threaded hole, 313-a second limiting plate, 3130-a first through hole, 314-a connecting plate, 315-a second locking member, 316-a third locking member;
32-second fasteners, 321-first threaded posts, 322-support posts, 323-first press plate, 3230-second through holes, 324-fourth locking members;
325-second threaded post, 326-second platen, 3260-third through hole, 327-fifth lock;
41-a first locking member;
s-radial plane, X-axial, Y-first direction, Z-second direction.
Detailed Description
The present application will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present application more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application.
It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly or indirectly mounted or disposed on the other element. When an element is referred to as being "connected to" another element, it can be directly or indirectly connected to the other element. The terms "upper," "lower," "left," "right," and the like are used for convenience of description based on the orientation or positional relationship shown in the drawings, and do not denote or imply that the devices or elements being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present patent. The terms "first," "second," and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. The meaning of "a plurality of" is two or more, unless specifically defined otherwise.
In order to explain the technical scheme of the application, the following is a detailed description with reference to the specific drawings and embodiments.
Referring to fig. 1 and 2, a gate valve 91 is provided between two pipes 93. Specifically, a valve seat 92 is provided between the sides of the pipes 93 that are close to each other, the gate valve 91 is movably provided in the valve seat 92, and the sides of the gate valve 91 facing the valve seat 92 are respectively provided with sealing surfaces 910 in a closed ring shape for sealing connection with an end surface 920 of the valve seat 92 facing the gate valve 91 (in fig. 2, the sealing surfaces 910 of the gate valve 91 and the end surface 920 of the valve seat 92 are overlapped) so as to shut off fluid between the two pipes 93 and the valve seat 92. When the gate valve 91 moves in the radial direction of the pipe 93, the sealing surface 910 is disengaged from the end surface 920 of the gate valve 91, so that the pipes 93 on both sides are brought into communication, and fluid can pass.
With the use of the gate valve 91, the sealing surface 910 may deform or wear, requiring machining operations such as turning and resurfacing the sealing surface 910 to restore its surface topography so that the sealing surface 910 can again form a seal with the end face 920 of the valve seat 92.
The embodiment of the present application provides a gate valve clamping device 100 for holding a gate valve 91 in a desired position to process a sealing surface 910 according to a specific processing position.
Specifically, as shown in fig. 2, the sealing surfaces 910 are provided to protrude from the surfaces of the gate valve 91 on opposite sides, and the other surfaces are recessed from each other. During use of the gate valve 91, the sealing surface 910 may crack, experience localized wear, etc., while the other surface substrates may remain unchanged. Therefore, when the gate valve 91 is clamped to perform processing such as turning on the sealing surface 910, the position on the opposite side surfaces of the gate valve 91 where the sealing surface 910 is avoided may be referred to, for example, a partial region surrounded by the sealing surface 910 or a portion other than the sealing surface 910 may be referred to.
Referring to fig. 1, both sides of the gate valve 91 facing the valve seat 92 are disposed obliquely with respect to the axial direction X of the valve seat 92. Therefore, in order to ensure that the inclined sealing surface 910 can be uniformly processed when clamping and fixing the gate valve 91, the gate valve clamping device 100 needs to be adapted to the inclined patterns at both sides of the gate valve 91.
Referring to fig. 3, 4 and 5, a gate valve clamping device 100 according to an embodiment of the present application includes a base 1, a wedge 2 disposed on the base 1, and a plurality of fasteners 3 disposed on the base 1. The base 1 is fixedly connected with a machining device, for example, fixedly connected with the machining device, and performs rotary motion. Here, the surface of the base 1 for carrying the gate valve 91 is taken as its working surface 10, and the direction perpendicular to the working surface 10 is the axial direction X of the base 1. The wedge block 2 is disposed on the working surface 10 of the base 1, as shown in fig. 6, the wedge block 2 has a first surface 21 facing the base 1 and a second surface 22 facing the gate valve 91, an included angle is formed between the first surface 21 and the second surface 22, one end of each of the plurality of fastening members 3 is fixedly connected to the base 1, and the other end of each of the fastening members 3 is used for abutting against at least a portion of the surface of the gate valve 91 facing away from the base 1 and avoiding a surface to be processed, which is the sealing surface 910.
The gate valve clamping device 100 provided in the embodiment of the present application uses the wedge block 2 and the plurality of fasteners 3 to cooperate, and since the second surface 22 of the wedge block 2 is inclined relative to the first surface 21, the second surface 22 is adapted to the inclination degree of the side of the gate valve 91 facing the valve seat 92 relative to the radial plane S of the valve seat 92 by setting the inclination degree of the second surface 22 relative to the first surface 21 (please refer to fig. 2 in combination), so that the sealing surface 910 can be kept in an orientation parallel to the working surface 10. Further, the gate valve 91 is held on the base 1 at a desired angle by restricting at least a part of the surface of the gate valve 91 by the plurality of fasteners 3, and further, the processing accuracy of the sealing surface 910 can be ensured when the sealing surface 910 is processed.
Here, the axial direction X of the valve seat 92 and the central axis of the sealing surface 910 are theoretically set to coincide. In practical use, a certain deviation is allowed between the axial direction X of the base 1 and the axial direction X of the valve seat 92 according to a machining error of the base 1, an installation error of the base 1 on a machining apparatus, or the like. The specific limitation is not particularly limited herein.
It will be appreciated that in some embodiments, the other end of each fastener 3 should be no higher than the sealing surface 910 in the axial direction X of the base 1 to avoid interference with the machining process of the sealing surface 910.
Wherein the first surface 21 of the wedge block 2 can abut against the working surface 10 of the base 1, whereby the second surface 22 is arranged at an angle relative to the working surface 10 to fit the sealing surface 910 such that the sealing surface 910 can be machined parallel to the working surface 10 of the base 1.
In a specific embodiment, the angle of the first surface 21 with respect to the first surface 21 is designed according to the type of gate valve 91, etc. For example, the side of the gate valve 91 facing the valve seat 92 is at an angle of 10 ° with respect to the radial plane S of the valve seat 92, and the second surface 22 is at an angle of 10 ° with respect to the first surface 21. For example, the side of the gate valve 91 facing the valve seat 92 is at an angle of 5 ° with respect to the radial plane S of the valve seat 92, and the second surface 22 is at an angle of 5 ° with respect to the first surface 21. More cases are not exemplified.
Referring to fig. 3, 4 and 6, the wedge-shaped block 2 is provided with a sinking groove 20, the sinking groove 20 penetrates through the wedge-shaped block 2 along the axial direction X of the base 1, that is, the first surface 21 and the second surface 22 are communicated, the gate valve clamping device 100 further comprises a first locking member 41, one end of the first locking member 41 is fixed on the base 1, and the other end of the first locking member 41 is located in the sinking groove 20. The purpose of this arrangement is that the countersink 20 conceals the other end of the first locking member 41, avoiding that the other end of the first locking member 41 protrudes beyond the second surface 22, and that an interference is created for the angular adaptation between the wedge 2 and the gate valve 91, as shown in connection with fig. 8.
Specifically, referring to fig. 6, the sinking groove 20 is a stepped groove, a portion of the sinking groove near the base 1 is a first section 201, a portion of the sinking groove far away from the base 1 is a second section 202, and an inner dimension of the first section 201 is smaller than an inner dimension of the second section 202. The second section 202 is configured to receive the other end of the first locking member 41, and the step surface 203 formed between the first section 201 and the second section 202 is configured to limit the other end of the first locking member 41, so that the other end of the first locking member 41 presses against the step surface 203 to fixedly hold the wedge 2 on the base 1.
In some cases, after a certain period of use of the gate valve 91, the angle of the side of the gate valve 91 facing the valve seat 92 with respect to the radial plane S of the valve seat 92 may be slightly reduced, for example by 9.5 °, and the angle of the second surface 22 with respect to the first surface 21 may be set to be greater than or equal to 9.5 ° as the case may be. The purpose of this is that the angle of the first surface 21 relative to the first surface 21 is set equal to or slightly greater than the angle of the side of the gate valve 91 facing the valve seat 92 relative to the radial plane S of the valve seat 92, so that the sealing surface 910 can also be kept parallel to the working surface 10 after machining by adjusting the position of the wedge 2 on the working surface 10.
With continued reference to fig. 6, the wedge block 2 further has a third surface 23 connected to the end of the first surface 21 and the second surface 22 remote from each other, and the sink 20 is in a strip shape in a direction substantially parallel to the working surface 10 and is connected to the third surface 23. The purpose of this arrangement is that when the first locking member 41 is located at different positions in the sink 20, the gate valve 91 can be kept at different angles relative to the working surface 10, so that the angle adaptation of different types of gate valves 91 or gate valves 91 deformed after use is realized, and the application range and the use flexibility of the gate valve clamping device 100 are improved.
One end of the first locking member 41 is detachably provided on the base 1 to facilitate adjustment of the position of the wedge 2. In an alternative embodiment, as shown in fig. 4, a first threaded hole 11 is provided on the base 1 corresponding to the first locking member 41, and the first locking member 41 may be a structure with external threads, such as a bolt, for engaging with the first threaded hole 11, so as to achieve a detachable fixed connection between one end of the first locking member 41 and the base 1. In other alternative embodiments, the first locking member 41 may be detachably connected to the base 1 in other manners, which are not particularly limited herein.
The number of first locking members 41 and countersinks 20 may be at least one, optionally at least two (two are shown in fig. 4) to provide a multi-point fixation of the wedge block 2 by a plurality of first locking members 41, avoiding a movement of the gate valve 91 relative to the work surface 10 due to a rotation of the wedge block 2 about the first locking members 41, as required.
Referring to fig. 1 and 2, the gate valve 91 includes a guide rail portion 914 located at two sides of a first direction Y, a guide groove 9140 along a second direction Z is provided on the guide rail portion 914, the first direction Y and the second direction Z are perpendicular to an axial direction X of the base 1, as shown in fig. 3 and 4, the plurality of fastening members 3 includes at least two first fastening members 31, one end of each first fastening member 31 is fixed on the working surface 10 of the base 1, the other end of each first fastening member 31 is provided with a first limiting plate 312, and the first limiting plate 312 is used for abutting against a surface of the guide rail portion 914 facing away from the base 1. The first fastener 31 applies pressure to the rail portion 914 toward the base 1 through the first stopper plate 312 thereof, thereby fixing the gate valve 91 to the base 1.
As shown in fig. 3 and 4, the plurality of first fasteners 31 are located on both sides of the gate valve 91 in the first direction Y, and also can restrict movement of the gate valve 91 in the first direction Y.
The guide groove 9140 of the gate valve 91 is configured to cooperate with a guide portion (not shown) on the valve seat 92 so that the gate valve 91 can only move along the extending direction of the guide portion.
In one embodiment, the first direction Y and the second direction Z may be perpendicular. Here, the vertical is not limited to being completely maintained at 90 °, and a certain angle is allowed between the first direction Y and the second direction Z, for example, an angle of not more than 10 °, based on some processing error factors or the use of deformation factors, or the like.
Specifically, as shown in fig. 3 and 4, the first fastening member 31 includes a first fastening plate 311 and a second locking member 315, one end of the first fastening plate 311 facing away from the base 1 is a first limiting plate 312, the first limiting plate 312 is provided with a second threaded hole 3120 penetrating along the axial direction X of the base 1, and the second locking member 315 can be engaged with the second threaded hole 3120. The second locking member 315 is a structural member having external threads such as a bolt. By the engagement of the second locking member 315 with the second screw hole 3120, the second locking member 315 is enabled to move in the axial direction X of the base 1, so that the end of the second locking member 315 can abut against the surface of the rail portion 914 or be away from the surface of the rail portion 914. In other alternative embodiments, the second locking member 315 may be detachably connected to the base 1 in other manners, which are not particularly limited herein.
The number of the second threaded holes 3120 provided on the first limiting plate 312 may be one or a plurality, and the specific combination of the processing condition of the second threaded holes 3120 and the area of the first limiting plate 312 is determined.
With continued reference to fig. 4 and 5, the end of the first fastening plate 311 facing the base 1 is provided with a second limiting plate 313, and the second limiting plate 313 protrudes toward a side away from the gate valve 91. The base 1 is provided with a third threaded hole 13, and the first fastener 31 further includes a third locking member 316, where the third locking member 316 passes through the second limiting plate 313 and engages with the third threaded hole 13. The third locking member 316 is a structural member having external threads such as a bolt.
In other alternative embodiments, the third locking member 316 may be detachably connected to the base 1 in other manners, which are not particularly limited herein. Specifically, as shown in fig. 4, the second limiting plate 313 is provided with a first through hole 3130, and the first through hole 3130 penetrates to a side end surface 920 of the first limiting plate 312 facing away from the gate valve 91. The purpose of this arrangement is that the first through hole 3130 is in the form of a bar, and by arranging the third locking member 316 at different positions within the first through hole 3130, the position of the gate valve 91 in the first direction Y can be adjusted, whereby the gate valve 91 and the base 1 can be adjusted to be concentric, which can be applied to gate valves 91 of different types or gate valves 91 having a difference in size.
Referring to fig. 3, the first fastening plate 311 further includes a connection plate 314 connected between the first and second limiting plates 312 and 313. The first stop plate 312, the connecting plate 314, and the second stop plate 313 may be of unitary construction, such as a unitary stamping, or may be assembled, such as by welding.
The side of the connection plate 314 facing the gate valve 91 may be perpendicular to the working surface 10 to be fitted to the side of the rail portion 914. The side of the connection plate 314 facing the gate valve 91 may have other shapes as needed, and is not particularly limited.
As shown in fig. 1 and 2, the gate valve 91 includes two opposite valve flaps 911, alternatively, the valve flaps 911 may be mirror-symmetrical with respect to a radial plane S of the valve seat 92, and the opposite sides of the valve flaps 911 each have a surface to be processed, i.e. a sealing surface 910. The side of the valve clack 911 adjacent to each other is provided with a connection portion 912, and a peripheral edge of the side of the valve clack 911 adjacent to each other forms a gap 913 around the connection portion 912. The gap 913 communicates with the guide groove 9140 described above, or the guide groove 9140 is a part of the gap 913.
The gate valve 91 thus provided has a certain elasticity, i.e. due to the presence of the gap 913 between the edges of the valve flap 911, a certain deformation of the edges of the valve flap 911 can take place, which enables the gate valve 91 to be adapted to the end face 920 of the valve seat 92, for example, when there is a machining error or micro deformation of the end face 920 of the valve seat 92, the sealing surface 910 can also be brought into a sealing connection with the end face 920 of the valve seat 92.
As such, referring to fig. 3,4, 5 and 8 in combination, the plurality of fasteners 3 includes at least one second fastener 32, and an end of the second fastener 32 facing away from the base 1 is configured to be disposed within the gap 913 and abut against a surface of the valve flap 911. It should be noted that, assuming that the direction of the axial direction X is toward the base 1, the term "surface of the valve flap 911" as used herein refers to the front surface of the valve flap 911 located at the rear so that the second fastener 32 can press the valve flap 911 against the base 1. That is, the other end of the second fastener 32 is disposed between the two flaps 911, and presses the flaps 911 close to the base 1.
Specifically, referring to fig. 1 and 2, the gate valve 91 has an upper end and a lower end along the second direction Z. The "upper end" and the "lower end" are merely two opposite positions, and do not indicate that the upper end is above the lower end when the gate valve 91 is applied between the pipe 93 and the valve seat 92. Based on the actual application, the "upper" may be the direction in which the gate valve 91 can be disengaged from the valve seat 92, i.e., when the gate valve 91 moves upward, the end face 920 of the valve seat 92 is disengaged from the sealing surface 910 of the gate valve 91, and when the gate valve 91 moves downward, the end face 920 of the valve seat 92 forms a sealing connection with the sealing surface 910 of the gate valve 91.
Referring to fig. 5 and 8, at least one second fastening member 32 is disposed at a lower end of the valve clack 911 along the second direction Y, the second fastening member 32 includes a first threaded post 321, a support post 322, a fourth locking member 324 and a first pressing plate 323, the first threaded post 321 and the support post 322 are disposed on the base 1, specifically, for example, disposed along the axial direction X of the base 1, a second through hole 3230 capable of passing through the first threaded post 321 is disposed on the first pressing plate 323, an end of the support post 322 facing away from the base 1 is used for abutting against a surface of the first pressing plate 323 facing toward the base 1, and the fourth locking member 324 is disposed on a side of the first pressing plate 323 facing away from the base 1 and capable of engaging with the first threaded post 321. The fourth locking member 324 may be a threaded nut or the like.
The second fastening member 32 functions in such a manner that, when the fourth locking member 324 engages with the first screw post 321, the fourth locking member 324 is able to move in the axial direction X of the base 1 and push the first pressing plate 323 toward the base 1 such that the first pressing plate 323 abuts against the front surface of the rear flap 911. Wherein, in the second direction Z, the first threaded post 321 is located at the outer side of the valve clack 911, the support column 322 is located at the side of the first threaded post 321 away from the valve clack 911, a portion of the first pressing plate 323 is located between the two valve clacks 911, and the support column 322 is used to provide a reaction force to a portion of the first pressing plate 323 located outside the valve clack 911, so that the portion of the first pressing plate 323 located between the valve clacks 911 can abut against the front surface of the valve clack 911 at the rear in a form substantially flush with the working surface 10, as shown in fig. 8.
The first threaded post 321 and/or the support post 322 may be disposed in a fourth threaded hole (not shown) in the base 1 in a threaded engagement, or may be engaged with the base 1 in other manners.
With continued reference to fig. 1 and 7, the upper end of the valve clack 911 along the second direction Y is further provided with a relief hole 915 penetrating along the axial direction X of the base 1 and communicating with the outer edge of the upper end of the valve clack 911, and the at least one second fastener 32 includes a second threaded post 325, a second pressing plate 326 and a fifth locking member 327, wherein the second threaded post 325 is disposed on the base 1, specifically, if disposed along the axial direction X of the base 1, the second pressing plate 326 is provided with a third through hole 3260 capable of penetrating through the second threaded post 325, and the fifth locking member 327 is disposed on a side of the second pressing plate 326 facing away from the base 1 and capable of engaging with the second threaded post 325. The fifth locking member 327 may be a threaded nut or the like.
The second fastener 32 functions in such a manner that when the fifth lock 327 engages with the second screw post 325, the fifth lock 327 can move in the axial direction X of the base 1 and push the second pressing plate 326 toward the base 1, so that the second pressing plate 326 abuts against the front surface of the rear flap 911. Since the relief hole 915 communicates to the outer edge of the upper end of the valve flap 911, both sides of the second pressing plate 326 in the first direction Y can be respectively abutted against the front surfaces of the valve flaps 911 on both sides thereof, as shown in fig. 7 and 8 in combination.
The second threaded post 325 may be disposed in a fifth threaded hole (not shown) in the base 1 by threaded engagement, or may be engaged with the base 1 by other means.
The usage method of the gate valve clamping device 100 provided by the embodiment of the application is as follows:
1. The wedge-shaped block 2 is fixed on the base 1, the gate valve 91 is arranged on one side of the wedge-shaped block 2, which is far away from the base 1, and the surface of the gate valve 91, which is towards the base 1, is contacted with the wedge-shaped block 2;
2. Two first fasteners 31 are arranged on the base 1 so that the connecting plate 314 abuts against the side surface of the guide rail portion 914 and the first limiting plate 312 abuts against the surface of the gate valve 91 facing away from the base 1 and is away from the sealing surface 910;
3. two second fasteners 32 are provided on the base 1 such that the first and second pressure plates 323, 326 abut against the surface of the gate valve 91 facing away from the base 1 and clear the sealing surface 910.
The steps may be exchanged according to the actual situation, or the gate valve 91 may be pre-fixed in each step, and at least one of the steps may be repeated for fine adjustment, so as to ensure that the gate valve 91 is adjusted to a desired position in the first direction Y, the second direction Z, and the axial direction X of the base 1.
The gate valve clamping device 100 provided by the embodiment of the application can adapt to the inclination angle of the gate valve 91 towards the valve seat 92, so that the gate valve 91 is kept at an angle suitable for processing, and further, the processing of the sealing surface 910 is more accurate. In addition, for the gate valve 91 used in the nuclear power plant, the gate valve clamping device 100 can effectively and quickly fix the gate valve 91, and reduce radiation dose to operators.
The foregoing description of the preferred embodiments of the application is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the application.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202510329433.XA CN119897723A (en) | 2025-03-20 | 2025-03-20 | A gate valve clamping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202510329433.XA CN119897723A (en) | 2025-03-20 | 2025-03-20 | A gate valve clamping device |
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| Publication Number | Publication Date |
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| CN119897723A true CN119897723A (en) | 2025-04-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202510329433.XA Pending CN119897723A (en) | 2025-03-20 | 2025-03-20 | A gate valve clamping device |
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