Auxiliary positioning device for pressure relief valve checking table

Abstract

The utility model belongs to the technical field of pressure relief valve checking, and particularly relates to an auxiliary positioning device for a pressure relief valve checking table, which comprises a metal circular plate base table, a clamping assembly, an infrared marking assembly and a connecting relation thereof. By arranging the clamping assembly and the infrared marking assembly, positioning and fixing of the position of the pressure relief valve can be assisted, the installation precision of the pressure relief valve is improved, the situation of air leakage caused by position deviation is avoided, the position correctness of the pressure relief valve does not need to be judged by means of the operation experience of operators and naked eyes, and the working efficiency is improved. And the position correctness of the pressure relief valve is ensured while the operation process is simplified.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure relief valve calibration, in particular to an auxiliary positioning device for a pressure relief valve calibration platform. Background Art

[0002] Traditional pressure relief valve test benches require highly skilled operators to manually install and position them, which is easily affected by human factors and leads to inaccurate positioning. Once the pressure relief valve is not accurately positioned and the experiment is started, it may cause leakage, which in turn leads to inaccurate test results or safety accidents, and even damage to the pressure relief valve test bench. Utility Model Content

[0003] The utility model aims to solve the technical problems existing in the background technology, and for this purpose, provides an auxiliary positioning device for a pressure relief valve test bench.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0005] An auxiliary positioning device for a pressure relief valve inspection platform, comprising a metal circular plate base, a clamping assembly and an infrared marking assembly;

[0006] The metal circular plate base is fixedly mounted on the table top of the calibration table, and a concentric calibration circular opening is provided on the metal circular plate base, wherein the pressure relief valve is placed at the calibration circular opening for calibration;

[0007] The clamping assembly includes a cylinder, a lifting rod, a telescopic rod and a clamping block; wherein the cylinder is located under the metal circular plate base, the movable end of the cylinder is fixedly connected to the lifting rod, the telescopic rod and the lifting rod are perpendicular to each other and are slidably connected therebetween, the clamping block is fixedly installed at the end of the telescopic rod, and the clamping block is used to clamp the pressure release valve downward;

[0008] The infrared marking assembly includes a magnet block, a support frame and an infrared generator, wherein the magnet block is magnetically adsorbed on a metal round plate base, the support frame is fixedly mounted on the magnet block, the infrared generator is fixedly mounted on the top of the support frame, the infrared generator has an arc-shaped emission port, and the infrared generator emits infrared rays downward and displays an arc-shaped infrared marking line on the metal round plate base.

[0009] Through the above technical solution, the clamping component can clamp and fix the pressure relief valve, and the infrared marking component can mark the correct placement position of the pressure relief valve.

[0010] The following is a technical solution further defined by the utility model: the clamping assembly has three groups and the three groups of clamping assemblies are evenly distributed in the circumferential direction of the metal circular plate base. The metal circular plate base is provided with a through hole for the lifting rod to move in the vertical direction. The telescopic rod and the clamping block are both located above the metal circular plate base. The telescopic rod is provided with a limit rod socket at one end away from the clamping block. The limit rod is inserted into the limit rod socket. When the telescopic rod moves in the horizontal direction, the limit rod abuts against or separates from the top ball portion of the lifting rod.

[0011] Through the above technical solution, the three groups of clamping assemblies can clamp the pressure relief valve evenly around it.

[0012] The following is a technical solution further defined by the utility model: the infrared marking assembly has 3 groups and the 3 groups of infrared marking assemblies are evenly distributed in the circumferential direction of the metal circular plate base, the metal circular plate base is provided with a lower rectangular limit groove, and the bottom of the magnet block is provided with an upper rectangular limit groove, wherein a rectangular limit piece is connected between the lower rectangular limit groove and the upper rectangular limit groove. The support frame includes a support vertical frame and a support horizontal frame, one end of the support horizontal frame is fixedly connected to the top of the support vertical frame, and the other end of the support horizontal frame is fixedly connected to the infrared generator.

[0013] Through the above technical solution, three groups of infrared marking components can mark the correct placement position for the pressure relief valve in the circumferential direction, thereby avoiding the situation where the pressure relief valve is offset and leaks.

[0014] Compared with the prior art, the utility model has the following technical effects:

[0015] The utility model provides a clamping assembly and an infrared marking assembly to assist in positioning and fixing the pressure relief valve, thereby improving the installation accuracy of the pressure relief valve and avoiding leakage due to position deviation. There is no need to rely on the operator's operating experience and naked eyes to judge the correctness of the position of the pressure relief valve, which simplifies the operating process while ensuring the correctness of the position of the pressure relief valve.

[0016] The present invention will be further described below in conjunction with the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the top view structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the utility model when it is installed on a calibration table;

[0020] Figure 3 It is a simplified structural schematic diagram of the infrared marking component of the utility model.

[0021] Figure numerals: 1. Metal circular plate base; 2. Clamping assembly; 2a. Lifting rod; 2b. Telescopic rod; 2c. Clamping block; 2d. Limit rod; 3. Infrared marking assembly; 3a. Magnet block; 3a-1. Upper rectangular limit groove; 3b. Support frame; 3c. Infrared generator; 3d. Infrared marking line; 4. Verification table; 4a. Verification circular mouth; 5. Tilted screen. DETAILED DESCRIPTION

[0022] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0023] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply 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 on the present invention.

[0024] In the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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 a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0025] like Figure 1 and 3 As shown, an auxiliary positioning device for a pressure relief valve inspection bench is provided.

[0026] like Figure 2 As shown, the auxiliary positioning device of the pressure relief valve test bench of this embodiment is installed on the test bench 4, and the test bench 4 has an inclined screen 5, a switch button and a control host. It should be noted that the test bench 4, the inclined screen 5, the switch button and the control host are not within the protection scope of the present utility model, and are only used by those skilled in the art to understand the application of the product of this embodiment on the test bench 4.

[0027] like Figure 1 As shown, the auxiliary positioning device of the pressure relief valve inspection platform includes a metal round plate base 1, a clamping component 2 and an infrared marking component 3.

[0028] The metal circular plate base 1 is fixedly mounted on the table top of the inspection table 4, wherein the table top of the metal circular plate base 1 is flush with the table top of the inspection table 4. A concentric inspection circular opening 4a is provided on the metal circular plate base 1, that is, the inspection circular opening 4a is concentric with the metal circular plate base 1; the inspection circular opening 4a is a high-pressure air outlet. It should be noted that a high-pressure air pump that generates high-pressure air outlet is installed under the table top of the inspection table 4, and the high-pressure air pump is not within the scope of protection of the present utility model, and is only used for the understanding of the inspection circular opening 4a by those skilled in the art.

[0029] Therefore, the pressure relief valve (not shown in the figure) is placed at the calibration circular opening 4a for calibration; and the pressure relief valve is assisted in positioning by the auxiliary positioning device of the pressure relief valve calibration bench of this embodiment.

[0030] There are three groups of clamping assemblies 2, and the three groups of clamping assemblies 2 are evenly distributed in the circumferential direction of the metal circular plate base 1. The three groups of clamping assemblies 2 can evenly clamp the four sides of the pressure release valve.

[0031] The clamping assembly 2 includes a cylinder, a lifting rod 2a, a telescopic rod 2b and a clamping block 2c. The cylinder (not shown in the figure) is located under the metal circular plate base 1, and the movable end of the cylinder is fixedly connected to the lifting rod 2a. The metal circular plate base 1 is provided with a through hole for the lifting rod 2a to move in the vertical direction. The telescopic rod 2b and the lifting rod 2a are perpendicular to each other and are slidably connected. The clamping block 2c is fixedly installed at the end of the telescopic rod 2b, and the clamping block 2c is used to clamp the pressure release valve downward. The telescopic rod 2b and the clamping block 2c are both located above the metal circular plate base 1. Furthermore, a limit rod 2d socket is provided at one end of the telescopic rod 2b away from the clamping block 2c, and the limit rod 2d is inserted into the limit rod 2d socket. When the telescopic rod 2b moves in the horizontal direction, the limit rod 2d abuts against or separates from the top ball of the lifting rod 2a. The limit rod 2d can prevent the telescopic rod 2b from being separated from the lifting rod 2a.

[0032] Therefore, the telescopic rod 2b is moved outward so that the pressure relief valve can be placed on the metal circular plate base 1; then, the cylinder works to drive the lifting rod 2a and the telescopic rod 2b to move downward, so that the clamping block 2c clamps the pressure relief valve.

[0033] There are three sets of infrared marking components 3, and the three sets of infrared marking components 3 are evenly distributed in the circumferential direction of the metal circular plate base 1. The three sets of infrared marking components 3 can mark the correct placement position of the pressure relief valve in the circumferential direction, avoiding the situation where the pressure relief valve is placed offset and leaks.

[0034] The infrared marking assembly 3 includes a magnet block 3a, a support frame 3b and an infrared generator 3c. The magnet block 3a is magnetically adsorbed on the metal circular plate base 1, and a lower rectangular limit groove is provided on the metal circular plate base 1. An upper rectangular limit groove 3a-1 is provided at the bottom of the magnet block 3a, wherein a rectangular limiter is connected between the lower rectangular limit groove and the upper rectangular limit groove 3a-1, and the position and direction accuracy of the infrared marking assembly 3 can be ensured by the rectangular limiter; at the same time, the magnetic adsorption method can facilitate the removal or placement of the infrared marking assembly 3 at any time. The support frame 3b includes a support vertical frame and a support horizontal frame, the bottom of the support vertical frame is fixedly mounted on the magnet block 3a, one end of the support horizontal frame is fixedly connected to the top of the support vertical frame, and the other end of the support horizontal frame is fixedly connected to the infrared generator 3c. The infrared generator 3c has an arc-shaped emission port, and the infrared generator 3c emits infrared rays downward and displays an arc-shaped infrared marking line 3d on the metal circular plate base 1. Therefore, the pressure relief valve is placed along the position of the infrared marking line 3d, and there is no need to rely on the operator's operating experience and naked eyes to judge the correctness of the position of the pressure relief valve, which simplifies the operating process while ensuring the correctness of the position of the pressure relief valve.

[0035] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Any technician familiar with the field can make many possible changes and modifications to the technical solution of the utility model by using the above disclosed methods and technical contents without departing from the scope of the technical solution of the utility model, or modify it into an equivalent embodiment of equivalent changes. Therefore, all equivalent changes made according to the shape, structure and principle of the utility model without departing from the content of the technical solution of the utility model should be included in the protection scope of the utility model.

Claims

1. An auxiliary positioning device for a pressure relief valve test bench, characterized in that: It comprises a metal circular plate base (1), a clamping component (2) and an infrared marking component (3); The metal circular plate base (1) is fixedly mounted on the tabletop of the calibration table (4), and a concentric calibration circular opening (4a) is provided on the metal circular plate base (1), wherein the pressure release valve is placed at the calibration circular opening (4a) for calibration; The clamping assembly (2) comprises a cylinder, a lifting rod (2a), a telescopic rod (2b) and a clamping block (2c); wherein the cylinder is located under the metal circular plate base (1); the movable end of the cylinder is fixedly connected to the lifting rod (2a); the telescopic rod (2b) and the lifting rod (2a) are perpendicular to each other and are slidably connected therebetween; the clamping block (2c) is fixedly mounted on the end of the telescopic rod (2b); and the clamping block (2c) is used to clamp the pressure release valve downward; The infrared marking assembly (3) comprises a magnet block (3a), a support frame (3b) and an infrared generator (3c), wherein the magnet block (3a) is magnetically adsorbed on a metal circular plate base (1), the support frame (3b) is fixedly mounted on the magnet block (3a), the infrared generator (3c) is fixedly mounted on the top of the support frame (3b), the infrared generator (3c) has an arc-shaped emission port, and the infrared generator (3c) emits infrared rays downward and displays an arc-shaped infrared marking line (3d) on the metal circular plate base (1).

2. The auxiliary positioning device for a pressure relief valve test bench according to claim 1, characterized in that: The clamping assembly (2) comprises three groups, and the three groups of clamping assemblies (2) are evenly distributed in the circumferential direction of the metal circular plate base (1). The metal circular plate base (1) is provided with a through opening for the lifting rod (2a) to move in the vertical direction. The telescopic rod (2b) and the clamping block (2c) are both located above the metal circular plate base (1).

3. The auxiliary positioning device for a pressure relief valve test bench according to claim 2, characterized in that: The telescopic rod (2b) has a limit rod (2d) socket at one end away from the clamping block (2c), and the limit rod (2d) is inserted into the limit rod (2d) socket. When the telescopic rod (2b) moves in the horizontal direction, the limit rod (2d) abuts against or separates from the top ball portion of the lifting rod (2a).

4. The auxiliary positioning device for a pressure relief valve test bench according to claim 1, characterized in that: The infrared marking components (3) have three groups, and the three groups of infrared marking components (3) are evenly distributed in the circumferential direction of the metal circular plate base (1); a lower rectangular limiting groove is provided on the metal circular plate base (1); an upper rectangular limiting groove (3a-1) is provided at the bottom of the magnet block (3a); a rectangular limiting piece is connected between the lower rectangular limiting groove and the upper rectangular limiting groove (3a-1).

5. The auxiliary positioning device for a pressure relief valve test bench according to claim 4, characterized in that: The support frame (3b) comprises a support vertical frame and a support horizontal frame, one end of the support horizontal frame is fixedly connected to the top of the support vertical frame, and the other end of the support horizontal frame is fixedly connected to the infrared generator (3c).

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