Air tightness detection equipment

Abstract

The utility model relates to the technical field of air tightness detection, in particular to air tightness detection equipment which comprises a water tank, supporting columns are fixedly installed at four corners of the upper end of the water tank, sliding grooves are formed in the opposite ends of the two supporting columns located on the front side and the rear side, and a detection mechanism is jointly connected into the four supporting columns in a sliding mode through the sliding grooves. Electric telescopic rods are embedded in the left side and the right side in the water tank, and the output ends of the electric telescopic rods are fixedly installed on the detection mechanism. According to the air tightness detection equipment, the sealing box is firmly and stably fixed, the air tightness detection equipment can be suitable for clamping and fixing the sealing boxes of different sizes, the application range is wide, the lifting frame is driven to move downwards through contraction of the electric telescopic rod, and the detection efficiency is improved. The sealing box clamped and fixed below the lifting frame is immersed in the water tank for air tightness testing, the sealing box can be taken out of the water tank through extension of the electric telescopic rod after testing is completed, the sealing box does not need to be clamped and fixed again, operation is easy, and use is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of air tightness detection, in particular to an air tightness detection device. Background Art

[0002] At present, in order to improve the preservation effect of some frozen fresh-keeping warehouses, nitrogen generation devices are installed inside them, and nitrogen is filled into the sealed boxes or sealed drawers in the compartments to inhibit the aerobic respiration of the food itself and the growth of microorganisms. The airtightness of the sealed box needs to be tested before use.

[0003] Most of the existing air tightness tests for sealed boxes are to pass high-pressure gas into the sealed box and then use a clamping device to place the sealed box in a water tank to observe whether bubbles are generated for a period of time to determine whether the air tightness of the sealed box is qualified. However, the disadvantage is that the existing clamping equipment has poor versatility and needs to be replaced with different handheld or hydraulic clamping equipment according to the test needs. It is not convenient to clamp sealed boxes of different sizes and has poor applicability. After the test is completed, the sealed box needs to be re-fixed and removed, which is cumbersome and inconvenient to use. Therefore, we propose an air tightness test device. Summary of the invention

[0004] The main purpose of the utility model is to provide an airtightness detection device, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] An air tightness detection device comprises a water tank, wherein support columns are fixedly installed at the four corners of the upper end of the water tank, and slide grooves are opened at the opposite ends of the two support columns located on the front and rear sides, and a detection mechanism is slidably connected in the four support columns through the slide grooves, and electric telescopic rods are embedded and installed on both sides of the left and right sides of the water tank, and the output end of the electric telescopic rod is fixedly installed with the detection mechanism.

[0007] Preferably, the detection mechanism includes a lifting frame, the lower end of the lifting frame is fixedly installed with the output end of the electric telescopic rod, the four corners of the lifting frame are provided with avoidance grooves, the four avoidance grooves are fixedly installed with sliders used in conjunction with the slide grooves, the four sliders are respectively slidably connected in the corresponding slide grooves to slide the lifting frame between four support columns, the front and rear inner walls inside the lifting frame are provided with connecting grooves, and a positioning device is slidably connected in the lifting frame through the connecting grooves.

[0008] Preferably, the positioning device includes a No. 1 forward and reverse motor, which is fixedly mounted on the right end of the lifting frame, and a No. 1 forward and reverse screw rod is fixedly mounted on the output end of the No. 1 forward and reverse motor, and two positioning parts are threadedly connected to the No. 1 forward and reverse screw rod, and the two positioning parts are slidably connected in the lifting frame through connecting grooves.

[0009] Preferably, the threads on the left and right sides of the outer surface of the No. 1 forward and reverse screw rod are reverse structures, and the two positioning members are respectively threadedly connected to the left and right sides of the No. 1 forward and reverse screw rod.

[0010] Preferably, the positioning member includes a top plate, and a transmission block is fixedly mounted on the upper end of the top plate. The transmission block is slidably connected in the lifting frame through a connecting groove and is threadedly connected to a No. 1 forward and reverse screw rod.

[0011] Preferably, an adjustment slot is opened at the lower end of the top plate, a No. 2 forward and reverse motor is fixedly installed at the rear end of the top plate, a No. 2 forward and reverse screw rod is fixedly installed at the output end of the No. 2 forward and reverse motor, and the No. 2 forward and reverse screw rod is movably installed in the adjustment slot, two clamping plates are threadedly connected to the No. 2 forward and reverse screw rod, and the upper parts of the two clamping plates are slidably connected to the adjustment slot.

[0012] Preferably, the threads on the front and rear sides of the outer surface of the No. 2 forward and reverse screw rod are reverse structures, and the two clamping plates are respectively threadedly connected to the front and rear sides of the No. 2 forward and reverse screw rod.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. The No. 1 forward and reverse screw rod is threadedly connected to the transmission blocks on both sides to make the two transmission blocks slide in the opposite direction in the lifting frame, so that the two top plates are close to or away from each other. The distance between the two top plates is adjusted according to the length of the sealing box to be detected. After the adjustment is completed, the No. 2 forward and reverse motor is started again, and the No. 2 forward and reverse motor drives the No. 2 forward and reverse screw rod to rotate. The No. 2 forward and reverse screw rod is threadedly connected to the clamping plates on both sides to make the two clamping plates slide in the opposite direction in the adjustment groove. The two clamping plates are brought close to each other to clamp and fix the sealing box, thereby ensuring the firmness of the sealing box and avoiding slipping during the detection process. The stability is strong and it can be used to clamp and fix sealing boxes of different sizes, and the application range is wide.

[0015] 2. The lifting frame is driven downward by contracting the electric telescopic rod, so that the sealing box clamped and fixed under the lifting frame is immersed in the water tank for air tightness test. After the test is completed, the sealing box can be taken out of the water tank by extending the electric telescopic rod. There is no need to clamp and fix the sealing box again. The operation is simple and easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1This is a schematic diagram of the overall structure of an air tightness detection device of the utility model;

[0017] Figure 2 This is a structural schematic diagram of a detection mechanism of an airtightness detection device of the utility model;

[0018] Figure 3 This is a structural schematic diagram of a positioning device for air tightness detection equipment of the utility model;

[0019] Figure 4 The utility model is a schematic structural diagram of a positioning member of an air tightness detection device.

[0020] In the figure: 1. water tank; 2. support column; 3. slide; 4. detection mechanism; 5. lifting frame; 6. avoidance groove; 7. slider; 8. connecting groove; 9. positioning device; 10. electric telescopic rod; 11. sealing box; 91. No. 1 forward and reverse motor; 92. No. 1 forward and reverse screw rod; 93. positioning piece; 94. top plate; 95. transmission block; 96. adjustment groove; 97. No. 2 forward and reverse motor; 98. No. 2 forward and reverse screw rod; 99. clamping plate. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0022] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the 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 operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" 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 it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] See also Figure 1-4 , the utility model provides a technical solution:

[0025] An air tightness detection device includes a water tank 1, wherein support columns 2 are fixedly installed at the four corners of the upper end of the water tank 1, and slide grooves 3 are opened at the opposite ends of the two support columns 2 located on the front and rear sides, and a detection mechanism 4 is slidably connected to the four support columns 2 through the slide grooves 3, and electric telescopic rods 10 are embedded and installed on both sides of the water tank 1, and the output end of the electric telescopic rod 10 is fixedly installed with the detection mechanism 4.

[0026] In this embodiment, the detection mechanism 4 includes a lifting frame 5, the lower end of the lifting frame 5 is fixedly installed with the output end of the electric telescopic rod 10, and the four corners of the lifting frame 5 are provided with avoidance grooves 6. Slide blocks 7 used in conjunction with the slide grooves 3 are fixedly installed in the four avoidance grooves 6. The four slide blocks 7 are respectively slidably connected in the corresponding slide grooves 3 to slide the lifting frame 5 between the four support columns 2. The front and rear inner walls inside the lifting frame 5 are provided with connecting grooves 8. A positioning device 9 is slidably connected in the lifting frame 5 through the connecting grooves 8. The lifting frame 5 is driven to move downward by contracting the electric telescopic rod 10, so that the sealing box 11 clamped and fixed under the lifting frame 5 is immersed in the water tank 1 for air tightness testing. After the test is completed, the sealing box 11 can be taken out of the water tank 1 by extending the electric telescopic rod 10, and there is no need to clamp and fix the sealing box 11 again. The operation is simple and easy to use.

[0027] In this embodiment, the positioning device 9 includes a forward and reverse motor 91, which is fixedly installed at the right end of the lifting frame 5. The output end of the forward and reverse motor 91 is fixedly installed with a forward and reverse screw rod 92. Two positioning members 93 are threadedly connected to the forward and reverse screw rod 92, and the two positioning members 93 are slidably connected to the lifting frame 5 through the connecting groove 8; the threads on the left and right sides of the outer surface of the forward and reverse screw rod 92 are reverse structures, and the two positioning members 93 are respectively threadedly connected to the left and right sides of the forward and reverse screw rod 92; The positioning member 93 includes a top plate 94, a transmission block 95 is fixedly installed on the upper end of the top plate 94, and the transmission block 95 is slidably connected to the lifting frame 5 through the connecting groove 8 and is threadedly connected to the first forward and reverse screw rod 92; an adjustment groove 96 is opened at the lower end of the top plate 94, and a second forward and reverse motor 97 is fixedly installed on the rear end of the top plate 94, and a second forward and reverse screw rod 98 is fixedly installed on the output end of the second forward and reverse motor 97, and the second forward and reverse screw rod 98 is movably installed in the adjustment groove 96, and two clamping plates 9 are threadedly connected to the second forward and reverse screw rod 98. 9, and the upper parts of the two clamping plates 99 are slidably connected to the adjustment groove 96; the threads on the front and rear sides of the outer surface of the No. 2 forward and reverse screw rod 98 are reverse structures, and the two clamping plates 99 are respectively threadedly connected to the front and rear sides of the No. 2 forward and reverse screw rod 98; the No. 1 forward and reverse screw rod 92 is threadedly connected to the transmission blocks 95 on both sides so that the two transmission blocks 95 slide in the opposite direction in the lifting frame 5, so that the two top plates 94 are close to or away from each other, and the distance between the two top plates 94 is adjusted according to the length of the sealing box 11 to be detected. After completion, start the No. 2 forward and reverse motor 97 again, and the No. 2 forward and reverse motor 97 drives the No. 2 forward and reverse screw 98 to rotate, and the No. 2 forward and reverse screw 98 is threadedly connected with the clamping plates 99 on both sides to make the two clamping plates 99 slide in opposite directions in the adjustment groove 96, and the two clamping plates 99 are brought close to each other to clamp and fix the sealing box 11, thereby ensuring the firmness of the sealing box 11 and avoiding slipping during the detection process. The sealing box 11 has strong stability and can be used to clamp and fix sealing boxes 11 of different sizes, and has a wide range of applications.

[0028] It should be noted that the utility model is an airtightness detection device. During use, a sealing box 11 with high-pressure gas is placed between two positioning members 93, and the No. 1 forward and reverse motor 91 is started. The No. 1 forward and reverse motor 91 drives the No. 1 forward and reverse screw rod 92 to rotate. The No. 1 forward and reverse screw rod 92 is threadedly connected to the transmission blocks 95 on both sides so that the two transmission blocks 95 slide in opposite directions in the lifting frame 5, so that the two top plates 94 are close to or away from each other. The distance between the two top plates 94 is adjusted according to the length of the sealing box 11 to be detected. After the adjustment is completed, the No. 2 forward and reverse motor 97 is started again, and the No. 2 forward and reverse motor 97 drives the No. 2 forward and reverse screw rod 98 to rotate. The No. 2 forward and reverse screw rod 98 is threadedly connected to the clamping plates 99 on both sides so that the two clamping plates 99 slide in opposite directions in the adjustment grooves 96. The sealing box 11 is clamped and fixed by the two clamping plates 99 approaching each other, so as to ensure the firmness of the sealing box 11 and avoid slipping during the detection process. The sealing box 11 has strong stability and can be applied to the sealing boxes 11 of different sizes for clamping and fixing, and has a wide range of applications. Then, the electric telescopic rods 10 on both sides are started, and the lifting frame 5 is driven downward by the contraction of the electric telescopic rods 10, so that the sealing box 11 clamped and fixed under the lifting frame 5 is immersed in the water tank 1, and it is observed for a period of time to see whether bubbles are generated, so as to determine whether the air tightness of the sealing box 11 is qualified. After the test is completed, the electric telescopic rods 10 on both sides are started again, and the sealing box 11 can be taken out of the water tank 1 by extending the electric telescopic rods 10, without the need to clamp and fix the sealing box 11 again, and the operation is simple and convenient to use.

[0029] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. An air tightness detection device, comprising a water tank (1), characterized in that: Support columns (2) are fixedly installed at the four corners of the upper end of the water tank (1), and the opposite ends of the two support columns (2) located at the front and rear sides are provided with slide grooves (3), and the four support columns (2) are slidably connected to the detection mechanism (4) through the slide grooves (3), and the left and right sides of the water tank (1) are embedded with electric telescopic rods (10), and the output end of the electric telescopic rod (10) is fixedly installed with the detection mechanism (4); The detection mechanism (4) comprises a lifting frame (5), the lower end of the lifting frame (5) is fixedly mounted on the output end of the electric telescopic rod (10), the four corners of the lifting frame (5) are provided with avoidance grooves (6), the four avoidance grooves (6) are fixedly mounted with sliders (7) used in conjunction with the slide grooves (3), the four sliders (7) are respectively slidably connected in the corresponding slide grooves (3) to slide the lifting frame (5) between the four support columns (2), the front and rear inner walls of the lifting frame (5) are provided with connecting grooves (8), and the lifting frame (5) is slidably connected with a positioning device (9) through the connecting grooves (8).

2. The airtightness detection device according to claim 1, characterized in that: The positioning device (9) comprises a forward and reverse motor (91) which is fixedly mounted on the right end of the lifting frame (5). A forward and reverse screw rod (92) is fixedly mounted on the output end of the forward and reverse motor (91). Two positioning members (93) are threadedly connected to the forward and reverse screw rod (92), and the two positioning members (93) are slidably connected to the lifting frame (5) via a connecting groove (8).

3. The airtightness detection device according to claim 2, characterized in that: The threads on the left and right sides of the outer surface of the first forward and reverse screw rod (92) are of reverse structure, and the two positioning members (93) are respectively threadedly connected to the left and right sides of the first forward and reverse screw rod (92).

4. The airtightness detection device according to claim 2, characterized in that: The positioning member (93) comprises a top plate (94), a transmission block (95) being fixedly mounted on the upper end of the top plate (94), the transmission block (95) being slidably connected in the lifting frame (5) via a connecting groove (8) and being threadedly connected to a number one forward and reverse screw rod (92).

5. The airtightness detection device according to claim 4, characterized in that: An adjusting slot (96) is formed at the lower end of the top plate (94), a second forward and reverse motor (97) is fixedly mounted at the rear end of the top plate (94), a second forward and reverse screw rod (98) is fixedly mounted at the output end of the second forward and reverse motor (97), and the second forward and reverse screw rod (98) is movably mounted in the adjusting slot (96), two clamping plates (99) are threadedly connected to the second forward and reverse screw rod (98), and the upper parts of the two clamping plates (99) are slidably connected to the adjusting slot (96).

6. The airtightness detection device according to claim 5, characterized in that: The threads on the front and rear sides of the outer surface of the No. 2 forward and reverse screw rod (98) are of reverse structure, and the two clamping plates (99) are respectively threadedly connected to the front and rear sides of the No. 2 forward and reverse screw rod (98).

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