Explosion-proof test box

Abstract

The utility model discloses an explosion-proof test box, relates to the field of explosion-proof test devices, and aims to solve the problems that an existing explosion-proof test box used for air tightness test in the prior art is complex in structure, and operation is inconvenient during air tightness test due to the complex structure. A square tube frame is arranged in the explosion-proof test box, first sealing plates are connected to the upper end face and the lower end face of the square tube frame, second sealing plates are connected to the end faces of the two sides of the square tube frame, a rear cover plate is connected to the rear end of the square tube frame, a front cover plate is connected to the front end of the square tube frame, and a rectangular opening is formed in the middle of the front cover plate. A plurality of connecting holes are formed in the edge of the rectangular opening of the front cover plate, a rectangular cover plate is connected to the front end of the rectangular opening, a rectangular sealing ring is fixedly connected to the edge of the rear end face of the rectangular cover plate, and a plurality of connecting grooves are formed in the edge of the rectangular cover plate.

Description

Technical Field

[0001] The utility model relates to the field of air tightness testing, in particular to an explosion-proof testing box. Background Art

[0002] The airtightness test is mainly to check whether there is leakage in the joints of the container. Pressure vessels with extremely or highly toxic media or pressure vessels that are not allowed to have even a small amount of leakage in their design must undergo an airtightness test.

[0003] Application No. 202121959282.X, the utility model discloses an airtightness detection cabinet and an airtightness detection device. The airtightness detection cabinet is used to control the airtightness detection of the parts to be tested on the workbench. The airtightness detection cabinet includes a main cabinet body independent of the workbench and a detection instrument installed on the main cabinet body. The main cabinet body is provided with an electrical control main system for controlling the pneumatic device of the workbench. The detection instrument is connected to the electrical control main system signal, and the detection instrument can display airtightness detection information. The airtightness detection cabinet is set independently of the workbench, and can match the airtightness detection of the same or different parts to be tested on different workbenches according to needs. There is no need to disassemble the detection instrument or place different workbenches nearby to complete the airtightness detection of multiple parts to be tested, which reduces the switching time and the equipment investment cost, thereby realizing fast and flexible production.

[0004] The existing explosion-proof test boxes used for air-tightness testing have relatively complex structures. Due to the relatively complex structure, it is inconvenient to operate during air-tightness testing; therefore, the market is in urgent need of developing explosion-proof test boxes to help people solve the existing problems. Utility Model Content

[0005] The purpose of the utility model is to provide an explosion-proof test box to solve the problem that the existing explosion-proof test boxes for air tightness testing mentioned in the above background technology are all relatively complex in structure and inconvenient to operate during air tightness testing due to the relatively complex structure.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an explosion-proof test box, comprising an explosion-proof test box, wherein a square tube frame is arranged inside the explosion-proof test box, the upper and lower end surfaces of the square tube frame are connected to the first sealing plate, the two side end surfaces of the square tube frame are connected to the second sealing plate, the rear end of the square tube frame is connected to the rear cover plate, the middle part of the rear cover plate is provided with two air vents, the rear end surface of the rear cover plate is fixedly connected to an air guide pipe at the rear end of the air hole, the front end of the square tube frame is connected to the front cover plate, the middle part of the front cover plate is provided with a rectangular opening, the edge of the rectangular opening of the front cover plate is provided with a plurality of connecting holes, the front end of the rectangular opening is connected to the rectangular cover plate, the edge of the rear end surface of the rectangular cover plate is fixedly connected to a rectangular ring sealing ring, and a plurality of connecting grooves are provided at the edge of the rectangular cover plate.

[0007] Preferably, the square tube frame is welded to the first sealing plate and the second sealing plate respectively.

[0008] Preferably, rectangular limiting grooves are provided at both ends of the middle of both sides of the first sealing plate, and rectangular limiting parts are fixedly connected to both ends of the middle of the upper and lower end surfaces of the second sealing plate, and the rectangular limiting parts are inserted into the rectangular limiting grooves.

[0009] Preferably, a sealing strip is fixedly connected to the edge of the front end surface of the rear cover plate and the edge of the rear end surface of the front cover plate.

[0010] Preferably, the rear cover plate and the front cover plate are fixedly connected to the square tube frame by a first bolt, a first sealing gasket is provided at the root of the threaded end of the first bolt, and the rear cover plate and the front cover plate are fixedly connected to the square tube frame and sealed with sealant on all sides.

[0011] Preferably, a threaded connecting column is fixedly connected to the rear end surface of the front cover plate and to the rear end of each connecting hole.

[0012] Preferably, the rectangular cover plate and the front cover plate are fixed by a second bolt which passes through the connection groove and the connection hole in sequence and is inserted into the inner part of the threaded connection column to be threadedly connected.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. In the utility model, through the setting of the square tube frame, the upper and lower end surfaces of the square tube frame are connected to the first sealing plate, the two side end surfaces of the square tube frame are connected to the second sealing plate, the tube frame is respectively welded to the first sealing plate and the second sealing plate, all welding welds are polished and smooth, the rear end of the square tube frame is connected to the rear cover plate, two vents are arranged in the middle of the rear cover plate, the rear end surface of the rear cover plate is fixedly connected to the air guide pipe at the rear end of the vents, the front end of the square tube frame is connected to the front cover plate, the front end surface edge of the rear cover plate and the rear end surface edge of the front cover plate are fixedly connected with a sealing strip, so that the rear cover plate and the front cover plate are connected to the square tube frame to maintain sealing, a rectangular opening is arranged in the middle of the front cover plate, the front end of the rectangular opening is connected to the rectangular cover plate, and the rear end surface edge of the rectangular cover plate is fixedly connected with Rectangular ring sealing ring, the rear cover plate and the front cover plate are fixedly connected to the square tube frame by the first bolt, and after the rear cover plate and the front cover plate are fixedly connected to the square tube frame, they are sealed with sealant on all sides, and the rectangular cover plate and the front cover plate are connected by the second bolt through the connecting groove and the connecting hole in sequence and inserted into the threaded connecting column to be fixed by the internal thread. The overall structure of the explosion-proof test box is simple. When in use, the rectangular cover plate is opened, and the equipment to be tested is placed into the explosion-proof test box through the rectangular opening, and the air supply pipe and the air outlet pipe are respectively connected to the two air guide pipes, and a pressure gauge is fixed on the air outlet pipe. The rectangular cover plate is fixed again, and the air tightness of the product can be judged by supplying air to the inside of the explosion-proof test box and observing the value of the pressure gauge on the air outlet pipe. The operation is relatively simple.

[0015] 2. In the utility model, through the setting of rectangular limiting grooves and rectangular limiting parts, rectangular limiting grooves are set at the front and rear ends of the middle part of both sides of the first sealing plate, and the front and rear ends of the middle part of the upper and lower end surfaces of the second sealing plate are fixedly connected with rectangular limiting parts. The rectangular limiting parts are inserted into the rectangular limiting grooves, so that after the first sealing plate and the second sealing plate are assembled and fixed, the outside of the explosion-proof test box can be kept regular.

[0016] 3. In the utility model, through the provision of the first sealing gasket, the rear cover plate and the front cover plate are fixedly connected to the square tube frame by the first bolt, and the first sealing gasket is provided at the root of the threaded end of the first bolt. After the rear cover plate and the front cover plate are fixedly connected to the square tube frame by the first sealing gasket, the insertion hole of the first bolt is sealed. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is the front view of the explosion-proof test box of the utility model;

[0018] Figure 2 It is a side view of the utility model;

[0019] Figure 3 It is a rear view of the utility model;

[0020] Figure 4 This is a schematic diagram of the main body of the utility model;

[0021] Figure 5 It is an enlarged view of the detail A of the utility model;

[0022] Figure 6 It is an enlarged view of detail B of the present utility model.

[0023] In the figure: 1. explosion-proof test box; 101. square tube frame; 102. first closing plate; 103. rectangular limiting groove; 104. second closing plate; 105. rectangular limiting part; 2. first bolt; 201. first sealing gasket; 3. rear cover plate; 301. vent hole; 302. air guide tube; 4. front cover plate; 401. rectangular opening; 402. connecting hole; 403. threaded connecting column; 5. rectangular cover plate; 501. connecting groove; 502. rectangular ring sealing ring; 503. second bolt. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0025] See also Figure 1-6The utility model provides an embodiment: an explosion-proof test box, including an explosion-proof test box 1, a square tube frame 101 is arranged inside the explosion-proof test box 1, the upper and lower end surfaces of the square tube frame 101 are connected to the first sealing plate 102, the end surfaces of the two sides of the square tube frame 101 are connected to the second sealing plate 104, the rear end of the square tube frame 101 is connected to the rear cover plate 3, two vents 301 are arranged in the middle of the rear cover plate 3, the rear end surface of the rear cover plate 3 is fixedly connected to the air guide tube 302 at the rear end of the vents 301, the front end of the square tube frame 101 is connected to the front cover plate 4, the middle part of the front cover plate 4 is provided with a rectangular opening 401, the edge of the rectangular opening 401 of the front cover plate 4 is provided with a plurality of connecting holes 402, the front end of the rectangular opening 401 is connected to the rectangular cover plate 5, the edge of the rear end surface of the rectangular cover plate 5 is fixedly connected to a rectangular ring sealing ring 502, and a plurality of connecting grooves 501 are arranged at the edge of the rectangular cover plate 5.

[0026] Furthermore, the square tube frame 101 is welded to the first sealing plate 102 and the second sealing plate 104 respectively, and all welding seams are polished and smooth.

[0027] Furthermore, rectangular limiting grooves 103 are provided at both ends of the middle of the first sealing plate 102, and rectangular limiting parts 105 are fixedly connected to both ends of the middle of the upper and lower end surfaces of the second sealing plate 104. The rectangular limiting parts 105 are inserted into the rectangular limiting grooves 103, so that after the first sealing plate 102 and the second sealing plate 104 are assembled and fixed, the exterior of the explosion-proof test box 1 remains regular.

[0028] Furthermore, the front end edge of the rear cover plate 3 and the rear end edge of the front cover plate 4 are fixedly connected with sealing strips, so that the rear cover plate 3 and the front cover plate 4 are connected to the square tube frame 101 to maintain sealing.

[0029] Furthermore, the rear cover plate 3 and the front cover plate 4 are fixedly connected to the square tube frame 101 by means of the first bolt 2. A first sealing gasket 201 is provided at the root of the threaded end of the first bolt 2. After the rear cover plate 3 and the front cover plate 4 are fixedly connected to the square tube frame by means of the first sealing gasket 201, the insertion hole of the first bolt 2 is sealed. After the rear cover plate 3 and the front cover plate 4 are fixedly connected to the square tube frame 101, they are sealed on all sides with sealant.

[0030] Furthermore, a threaded connection column 403 is fixedly connected to the rear end surface of the front cover plate 4 and to the rear end of each connection hole 402 .

[0031] Furthermore, the rectangular cover plate 5 and the front cover plate 4 are fixed by a second bolt 503 which passes through the connection groove 501 and the connection hole 402 in sequence and is inserted into the inner part of the threaded connection column 403 to be threadedly connected.

[0032] Working principle: The upper and lower ends of the square tube frame 101 are connected to the first sealing plate 102, and the two side end surfaces of the square tube frame 101 are connected to the second sealing plate 104. The square tube frame 101 is welded to the first sealing plate 102 and the second sealing plate 104 respectively, and all welding seams are polished and smooth. Rectangular limiting grooves 103 are set at the front and rear ends of the middle of both sides of the first sealing plate 102. Rectangular limiting parts 105 are fixedly connected to the front and rear ends of the middle of the upper and lower end surfaces of the second sealing plate 104. The rectangular limiting parts 105 are inserted into the rectangular limiting grooves 103, so that the first sealing plate 102 and the second sealing plate After 104 is assembled and fixed, the outside of the explosion-proof test box 1 remains regular. The rear end of the square tube frame 101 is connected to the rear cover plate 3, and two vents 301 are arranged in the middle of the rear cover plate 3. The rear end surface of the rear cover plate 3 is fixedly connected to the air guide tube 302 at the rear end of the vents 301. The front end of the square tube frame 101 is connected to the front cover plate 4, and the front end surface edge of the rear cover plate 3 and the rear end surface edge of the front cover plate 4 are fixedly connected with a sealing strip, so that the rear cover plate 3 and the front cover plate 4 are connected to the square tube frame 101 to maintain sealing. A rectangular opening 401 is arranged in the middle of the front cover plate 4, and the edges of the rectangular opening 401 of the front cover plate 4 are arranged A plurality of connection holes 402, a rectangular cover plate 5 is connected to the front end of the rectangular opening 401, a rectangular ring sealing ring 502 is fixedly connected to the edge of the rear end face of the rectangular cover plate 5, the rear cover plate 3 and the front cover plate 4 are fixedly connected to the square tube frame 101 by the first bolt 2, a first sealing gasket 201 is provided at the root of the threaded end of the first bolt 2, after the rear cover plate 3 and the front cover plate 4 are fixedly connected to the square tube frame by the first sealing gasket 201, the insertion hole of the first bolt 2 is sealed, and after the rear cover plate 3 and the front cover plate 4 are fixedly connected to the square tube frame 101, a sealant is used to seal the four sides, and the rectangular cover plate 5 and the front cover plate are fixedly connected to the square tube frame 101. 4 is sequentially penetrated through the connecting groove 501 and the connecting hole 402 by a second bolt 503 and inserted into the threaded connecting column 403 for fixing with threads. The explosion-proof test box 1 has a simple overall structure. When in use, the rectangular cover plate 5 is opened, and the equipment to be tested is placed into the explosion-proof test box 1 through the rectangular opening 401. The air supply pipe and the air outlet pipe are respectively connected to the two air guide pipes 302, and a pressure gauge is fixedly connected to the air outlet pipe. The rectangular cover plate 5 is fixed again. By supplying air to the interior of the explosion-proof test box 1 and observing the value of the pressure gauge on the air outlet pipe, the air tightness of the product can be judged, and the operation is relatively simple.

[0033] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. An explosion-proof test box, comprising an explosion-proof test box (1), characterized in that: The explosion-proof test box (1) is provided with a square tube frame (101) inside, the upper and lower end surfaces of the square tube frame (101) are connected to a first sealing plate (102), the two side end surfaces of the square tube frame (101) are connected to a second sealing plate (104), the rear end of the square tube frame (101) is connected to a rear cover plate (3), the middle part of the rear cover plate (3) is provided with two vent holes (301), and the rear end surface of the rear cover plate (3) is fixedly connected to an air guide pipe (301) at the rear end of the vent holes (301). 2), the front end of the square tube frame (101) is connected to a front cover plate (4), a rectangular opening (401) is provided in the middle of the front cover plate (4), the edges of the rectangular opening (401) of the front cover plate (4) are provided with a plurality of connection holes (402), the front end of the rectangular opening (401) is connected to a rectangular cover plate (5), a rectangular ring sealing ring (502) is fixedly connected to the edge of the rear end surface of the rectangular cover plate (5), and a plurality of connection grooves (501) are provided at the edge of the rectangular cover plate (5).

2. The explosion-proof test box according to claim 1, characterized in that: The square tube frame (101) is welded to the first sealing plate (102) and the second sealing plate (104).

3. The explosion-proof test box according to claim 1, characterized in that: Rectangular limiting grooves (103) are provided at both ends of the middle of the first sealing plate (102), and rectangular limiting portions (105) are fixedly connected at both ends of the middle of the upper and lower end surfaces of the second sealing plate (104), and the rectangular limiting portions (105) are inserted into the rectangular limiting grooves (103).

4. The explosion-proof test box according to claim 1, characterized in that: The front end surface edge of the rear cover plate (3) and the rear end surface edge of the front cover plate (4) are both fixedly connected with a sealing strip.

5. The explosion-proof test box according to claim 1, characterized in that: The rear cover plate (3) and the front cover plate (4) are fixedly connected to the square tube frame (101) via first bolts (2); a first sealing gasket (201) is provided at the root of the threaded end of the first bolt (2); and after the rear cover plate (3) and the front cover plate (4) are fixedly connected to the square tube frame (101), they are sealed on all sides using a sealant.

6. The explosion-proof test box according to claim 1, characterized in that: A threaded connection column (403) is fixedly connected to the rear end surface of the front cover plate (4) and to the rear end of each connection hole (402).

7. The explosion-proof test box according to claim 6, characterized in that: The rectangular cover plate (5) and the front cover plate (4) are fixedly connected by a second bolt (503) which passes through the connection groove (501) and the connection hole (402) in sequence and is inserted into the inner part of the threaded connection column (403).

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