Large-diameter low-temperature valve pressure test tool structure

Abstract

The utility model relates to a large-caliber low-temperature valve pressure test tool structure which comprises a fixed base, the left side and the right side of the fixed base are connected with a left supporting plate and a right supporting plate respectively, a guide column assembly is connected between the left supporting plate and the right supporting plate, and the guide column assembly is connected with a pressing plate sliding in the direction of a guide column. The left supporting plate and the pressing plate are connected with a left positioning seat and a right positioning seat respectively, the left positioning seat and the right positioning seat which are used for positioning and connecting a valve are connected to the left supporting plate and the pressing plate respectively, sealing rings are connected to the left positioning seat and the right positioning seat which are in contact with the valve, a clamping rod is connected to the right supporting plate in a penetrating mode, one end of the clamping rod is connected with the pressing plate, and the other end of the clamping rod is connected with the pressing plate. The right supporting plate is connected with a locking assembly, and the clamping rod penetrates through the locking assembly and is locked by the locking assembly. According to the utility model, the working efficiency can be improved.

Description

Technical Field

[0001] The utility model relates to a pressure test tooling structure for large-diameter cryogenic valves. Background Art

[0002] At present, the pressure test tooling on the market adopts a clamping method of two-end flanges. After inspection, the patent: A pressure test tooling for cryogenic special valves (CN201911375449.5), includes a valve body. A first flange is threadedly connected to the outside of the valve orifice of the valve body. A plurality of grooves are provided at the top of the first flange. Internal threads are provided on the inner wall of each groove. A bolt is threadedly connected to the groove. A pressure test blind plate is threadedly connected to the bolt. The pressure test blind plate is arranged outside the first flange and fixed to the first flange by bolts. A sealing member is provided between the valve body and the pressure test blind plate. When clamping, a structure of tightening simultaneously at both ends with bolts and nuts is used, which has a large workload and complex operation, resulting in low efficiency.

[0003] In view of the above defects, the designer actively conducts research and innovation in order to create a pressure test tooling structure for large-diameter cryogenic valves with a new structure, making it more valuable in industrial applications. Summary of the Utility Model

[0004] To solve the above technical problems, the purpose of the utility model is to provide a pressure test tooling structure for large-diameter cryogenic valves.

[0005] To achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A pressure test tooling structure for large-diameter cryogenic valves includes a fixed base. A left support plate and a right support plate are respectively connected to the left and right sides of the fixed base. A guiding column assembly is connected between the left support plate and the right support plate. A pressing plate that slides along the direction of the guiding column is connected to the guiding column assembly. Left and right positioning seats for positioning and connecting the valve are respectively connected to the left support plate and the pressing plate. Sealing rings are connected to both the left positioning seat and the right positioning seat that are in contact with the valve. A clamping rod penetrates through the right support plate. One end of the clamping rod is connected to the pressing plate. A locking assembly is connected to the right support plate. The clamping rod passes through the locking assembly and is locked by the locking assembly.

[0007] Preferably, for the pressure test tooling structure for large-diameter cryogenic valves, the guiding column assembly includes an upper guiding column and a lower guiding column. The upper guiding column and the lower guiding column are arranged in parallel. The pressing plate is slidably connected to the upper guiding column and the lower guiding column.

[0008] Preferably, for the pressure test tooling structure for large-diameter cryogenic valves, the clamping rod is a clamping rod with a screw structure.

[0009] Preferably, for the pressure test tooling structure of a large-diameter cryogenic valve, a handwheel is connected to the end of the clamping rod.

[0010] Preferably, for the pressure test tooling structure of a large-diameter cryogenic valve, the locking assembly includes a locking block which is connected to the right support plate, and a locking bolt for locking the clamping rod is connected to the locking block.

[0011] By means of the above solution, the present utility model has at least the following advantages:

[0012] The guiding assembly of the present utility model makes the clamping more accurate; the clamping design using screw drive is simple and reliable, and the operation is flexible and convenient; the locking assembly is adopted to make the clamping more reliable; thereby improving the efficiency of the pressure test.

[0013] The above description is only an overview of the technical solution of the present utility model. In order to be able to understand the technical means of the present utility model more clearly and implement it according to the content of the description, the following takes the preferred embodiments of the present utility model and combines with the drawings to describe in detail as follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required to be used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present utility model, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0015] Figure 1 is a schematic structural diagram of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0016] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. Usually, the components of the embodiments of the present application described and shown herein can be arranged and designed in various different configurations.

[0017] Therefore, the detailed description of the embodiments of the present application provided in the drawings below is not intended to limit the scope of the present application claimed, but merely represents the selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts fall within the scope of protection of the present application.

[0018] Embodiment

[0019] As Figure 1As shown in the figure, a pressure test tooling structure for a large-diameter cryogenic valve includes a fixed base 1. The left side and the right side of the fixed base 1 are respectively connected with a left support plate 2 and a right support plate 3. A guiding column assembly 4 is connected between the left support plate 2 and the right support plate 3. A pressing plate 5 that slides along the direction of the guiding column is connected to the guiding column assembly 4. A left positioning seat 6 and a right positioning seat 7 for positioning and connecting the valve are respectively connected to the left support plate 2 and the pressing plate 5. Sealing rings 8 are connected to both the left positioning seat 6 and the right positioning seat 7 that are in contact with the valve. A clamping rod 9 is inserted through the right support plate 3. One end of the clamping rod 9 is connected to the pressing plate 5. A locking assembly 10 is connected to the right support plate 3. The clamping rod 9 passes through the locking assembly 10 and is locked by the locking assembly.

[0020] In the present utility model, the guiding column assembly 4 includes an upper guiding column 41 and a lower guiding column 42. The upper guiding column 41 and the lower guiding column 42 are arranged in parallel. The pressing plate 5 is slidably connected to the upper guiding column 41 and the lower guiding column 42.

[0021] In the present utility model, the clamping rod 9 is a clamping rod with a screw structure, and a handwheel 11 is connected to the end of the clamping rod 9.

[0022] In the present utility model, the locking assembly 10 includes a locking block 101. The locking block 101 is connected to the right support plate 3, and a locking bolt 102 for locking the clamping rod is connected to the locking block 101.

[0023] The working principle of the present utility model is as follows:

[0024] During specific work, the product (valve) is placed on the left positioning seat and the right positioning seat. Then, the clamping rod is tightened through the handwheel. After tightening, the clamping rod is locked by the locking assembly. Then, the valve is tested (it can be used for the pressure test of water pressure or air pressure of a large-diameter cryogenic valve).

[0025] It should be noted that similar reference numerals and letters indicate similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0026] In the description of the present application, it should be noted that the orientation or positional relationship indicated by the terms "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of this application is usually placed during use. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present application. In addition, the terms "first", "second", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0027] In addition, terms such as "horizontal" and "vertical" do not require the components to be absolutely horizontal or vertical, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0028] In the description of the present application, it should also be noted that unless otherwise clearly specified and defined, the terms "arranged", "installed", "connected", and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0029] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A large-caliber cryogenic valve pressure test fixture structure, comprising a fixed base (1), characterized in that: The left and right sides of the fixed base (1) are respectively connected to a left support plate (2) and a right support plate (3); a guide column assembly (4) is connected between the left support plate (2) and the right support plate (3); a clamping plate (5) sliding along the direction of the guide column is connected to the guide column assembly (4); a left positioning seat (6) and a right positioning seat (7) for positioning and connecting the valve are respectively connected to the left support plate (2) and the clamping plate (5); a sealing ring (8) is connected to the left positioning seat (6) and the right positioning seat (7) contacting the valve; a clamping rod (9) is passed through the right support plate (3); one end of the clamping rod (9) is connected to the clamping plate (5); a locking assembly (10) is connected to the right support plate (3); the clamping rod (9) passes through the locking assembly (10) and is locked by the locking assembly.

2. A large-caliber cryogenic valve pressure test fixture structure according to claim 1, characterized in that: The guide column assembly (4) comprises an upper guide column (41) and a lower guide column (42), wherein the upper guide column (41) and the lower guide column (42) are arranged in parallel, and the clamping plate (5) is slidably connected to the upper guide column (41) and the lower guide column (42).

3. A large-caliber cryogenic valve pressure test fixture structure according to claim 1, characterized in that: The clamping rod (9) is a clamping rod with a screw structure.

4. A large-caliber cryogenic valve pressure testing tooling structure according to claim 1 or 3, characterized in that: The end of the clamping rod (9) is connected to a hand wheel (11).

5. The large-caliber cryogenic valve pressure test fixture structure according to claim 1 is characterized in that: The locking assembly (10) comprises a locking block (101), the locking block (101) is connected to the right support plate (3), and a locking bolt (102) for locking the clamping rod is connected to the locking block (101).

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