Helium recovery device for air tightness detection

Abstract

The utility model relates to the technical field of airtightness detection, and aims to provide a helium recovery device for airtightness detection, which comprises a bottom plate, a vacuum box is arranged on the bottom plate, a vacuum assembly is arranged on the outer wall of the vacuum box, an adjusting assembly is arranged on the bottom plate, a driving assembly is arranged on one side of the adjusting assembly, and the driving assembly is arranged on the other side of the adjusting assembly. A fixing assembly is arranged on the adjusting assembly, a clamping assembly is arranged above the fixing assembly, and efficient recycling of helium in the airtightness detection process is achieved through the integrated conveying and recycling assembly. The conveying pump can accurately convey helium from the storage bottle to the vacuum box, and the recovery pump is responsible for recovering the detected helium from the vacuum box to the storage bottle and is connected with the vacuum box through the vacuum pipe, so that air in the box can be rapidly pumped out, and necessary conditions are provided for air tightness detection. Meanwhile, the continuous work of the vacuum pump can effectively prevent the interference of external air on the detection process, and the accuracy of the detection result is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to airtightness detection technical field especially relates to a helium recovery device for airtightness detection. BACKGROUND

[0002] In the airtightness detection field, helium is widely used as tracer gas for leakage detection due to its small molecular weight, strong permeability, and difficulty in chemical reaction with other substances. However, helium resources are scarce and expensive, and how to efficiently and safely recycle and reuse helium has become a problem to be solved in the airtightness detection field.

[0003] Traditional airtightness detection devices often lack a dedicated helium recovery system, resulting in a large amount of helium loss during detection, which not only increases the detection cost but also causes unnecessary pollution to the environment. UTILITY MODEL CONTENT

[0004] The utility model aims to provide a helium recovery device for airtightness detection to solve the problem raised in the background technology and facilitate popularization.

[0005] A helium recovery device for airtightness detection includes a bottom plate, a vacuum box is provided on the top of the bottom plate, a vacuum assembly is provided on the outer wall of the vacuum box, an adjusting assembly is provided on the top of the bottom plate, a driving assembly is provided on one side of the adjusting assembly, a fixing assembly is provided on the adjusting assembly, a clamping assembly is provided above the fixing assembly, and a conveying and recycling assembly is provided between the clamping assembly and the vacuum box.

[0006] The adjusting assembly includes a vertical plate fixedly arranged on the top of the bottom plate, a sliding rail is formed in the vertical plate, a sliding block is slidably arranged in the sliding rail, and an adjusting connecting plate is fixedly arranged on one side of the sliding block.

[0007] Further, the driving assembly includes a horizontal plate fixedly arranged on the outer wall of the vertical plate, a driving motor is arranged on the top of the horizontal plate, a driving threaded rod is fixedly arranged on the output end of the driving motor, the end of the driving threaded rod away from the output end of the driving motor is rotatably arranged on the top of the bottom plate, a lead screw nut pair is threadedly connected to the driving threaded rod, and a driving connecting rod is arranged between the lead screw nut pair and the sliding block.

[0008] Further, the fixing assembly includes a first fixing plate fixedly arranged on the outer wall of the adjusting connecting plate, a second fixing plate is arranged on the side of the first fixing plate away from the outer wall of the adjusting connecting plate, a first fixed connecting plate is symmetrically arranged on the outer wall of the first fixing plate, a second fixed connecting plate is arranged on the outer wall of the second fixing plate, a fixed threaded rod is arranged on the outer wall of the first fixed connecting plate, a fixed nut is threadedly connected to the end of the fixed threaded rod away from the outer wall of the first fixed connecting plate through the second fixed connecting plate, and a helium storage bottle is arranged between the first fixing plate and the second fixing plate.

[0009] Further, the clamping assembly comprises clamping frame one and clamping frame two fixedly arranged on the outer wall of the vertical plate, a clamping threaded rod is threadedly connected to the clamping frame one and the clamping frame two, a clamping knob is fixedly arranged at one end of the clamping threaded rod, the end of the clamping threaded rod away from the clamping knob is rotatably arranged on a clamping ring plate, a guide rod is arranged on the outer wall of the clamping ring plate, and the end of the guide rod away from the clamping ring plate is fixedly arranged with a clamping limiting plate.

[0010] Further, the conveying and recycling assembly comprises a conveying pump fixedly arranged on the upper surface of the vacuum box and a recycling pump fixedly arranged on the upper surface of the bottom plate, a conveying high-pressure pipe is arranged between the conveying pump and the helium storage bottle, a conveying pipe is arranged between the conveying pump and the vacuum box, a recycling hose is arranged between the recycling pump and the helium storage bottle, and a recycling pipe is arranged between the recycling pump and the vacuum box.

[0011] Further, the vacuum assembly comprises a supporting plate fixedly arranged on the outer wall of the vacuum box, and a vacuum pump is arranged on the upper surface of the supporting plate, and a vacuum pipe is arranged between the vacuum pump and the vacuum box.

[0012] As an improvement, the beneficial effects of the helium recycling device for air tightness detection are:

[0013] The helium recycling device for air tightness detection of the utility model realizes efficient recycling of helium in the air tightness detection process through the integrated conveying and recycling assembly. The conveying pump can accurately convey helium from the storage bottle into the vacuum box, and the recycling pump is responsible for recycling the detected helium from the vacuum box to the storage bottle, realizing closed-loop circulation of helium, significantly improving the utilization rate of helium, reducing the detection cost, and connecting the vacuum pipe with the vacuum box, which can quickly remove the air in the box and provide necessary conditions for air tightness detection. At the same time, the continuous work of the vacuum pump can effectively prevent the interference of external air on the detection process and ensure the accuracy of the detection result. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is an isometric side view A of the helium recycling device for air tightness detection of the utility model;

[0015] Figure 2 It is an isometric side view B of the helium recycling device for air tightness detection of the utility model;

[0016] Figure 3 It is an isometric side view C of the helium recycling device for air tightness detection of the utility model;

[0017] Figure 4 It is an enlarged view of A in the helium recycling device for air tightness detection of the utility model; Figure 1

[0018] ​Figure 5 As the utility model Figure 2 The enlarged view of B in the utility model

[0019] Figure 6 As the utility model Figure 3 The enlarged view of C in the utility model

[0020] The legend table is as follows:

[0021] 1, bottom plate; 2, vacuum box; 3, vacuum assembly; 301, supporting plate; 302, vacuum pump; 303, vacuum pipe; 4, adjusting assembly; 401, vertical plate; 402, sliding rail; 403, sliding block; 404, adjusting connecting plate; 5, driving assembly; 501, horizontal plate; 502, driving motor; 503, driving threaded rod; 504, screw-nut pair; 505, driving connecting rod; 6, fixing assembly; 601, fixing plate one; 602, fixing plate two; 603, fixing connecting plate one; 604, fixing connecting plate two; 605, fixing threaded rod; 606, fixing nut; 607, helium storage bottle; 7, clamping assembly; 701, clamping frame one; 702, clamping frame two; 703, clamping threaded rod; 704, clamping knob; 705, clamping ring plate; 706, guide rod; 707, clamping limiting plate; 8, conveying and recycling assembly; 801, conveying pump; 802, recycling pump; 803, conveying high-pressure pipe; 804, conveying pipe; 805, recycling hose; 806, recycling pipe. DETAILED DESCRIPTION

[0022] The specific embodiments of the utility model will be further described below in conjunction with the drawings. Identical parts are denoted by identical reference numerals. It should be noted that the words "front", "back", "left", "right", "up" and "down" used in the following description refer to the directions in the drawings, and the words "inner" and "outer" refer to the directions towards or away from the geometric center of a particular component.

[0023] In order to make the content of the utility model more easily understood clearly, the technical solutions in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Identical parts are denoted by identical reference numerals.

[0024] The embodiment provides a helium recycling device for air tightness detection, mainly comprising a bottom plate 1 as a supporting base. Above the bottom plate 1, a vacuum box 2 is arranged, which is used for providing a closed detection environment for air tightness detection. A vacuum assembly 3 is installed on the outer wall of the vacuum box 2, which comprises a vacuum pump 302 arranged on the supporting plate 301 and a vacuum pipe 303 connecting the vacuum pump 302 and the vacuum box 2. Through the work of the vacuum pump 302, the gas in the vacuum box 2 can be pumped out to reach the required vacuum degree.

[0025] In the embodiment, the adjusting assembly 4 is arranged on the bottom plate 1, and is used for adjusting the positions of the fixing assembly 6 and the clamping assembly 7. The adjusting assembly 4 comprises a vertical plate 401, a sliding rail 402 is arranged in the vertical plate 401, and a sliding block 403 is slidably arranged in the sliding rail 402. One side of the sliding block 403 is fixedly connected with an adjusting connecting plate 404. Through the sliding of the sliding block 403 in the sliding rail 402, the adjusting connecting plate 404 and components thereon can be driven to move in the vertical direction.

[0026] In the embodiment, the driving assembly 5 is further arranged to drive the movement of the adjusting assembly 4. The driving assembly 5 comprises a driving motor 502 arranged on a horizontal plate 501, and a driving threaded rod 503 is fixedly connected to the output end of the driving motor 502. The end of the driving threaded rod 503 away from the driving motor 502 is rotatably arranged on the bottom plate 1, and a lead screw nut pair 504 is threadedly connected to the driving threaded rod 503. The lead screw nut pair 504 is connected with the sliding block 403 through a driving connecting rod 505. When the driving motor 502 works, the driving threaded rod 503 can be driven to rotate, and then the sliding block 403 and the adjusting connecting plate 404 can be driven to slide in the sliding rail 402 through the lead screw nut pair 504 and the driving connecting rod 505.

[0027] In the embodiment, the fixing assembly 6 is fixedly arranged on the outer wall of the adjusting connecting plate 404, and is used for fixing the helium storage bottle 607. The fixing assembly 6 comprises a first fixing plate 601 and a second fixing plate 602, and a first fixing connecting plate 603 and a second fixing connecting plate 604 connecting the first fixing plate 601 and the second fixing plate 602. The first fixing connecting plate 603 is provided with a fixing threaded rod 605, the fixing threaded rod 605 passes through the second fixing connecting plate 604, and a fixing nut 606 is threadedly connected to the fixing threaded rod 605. By tightening the fixing nut 606, the helium storage bottle 607 can be stably clamped between the first fixing plate 601 and the second fixing plate 602.

[0028] In the embodiment, the clamping assembly 7 comprises a clamping frame one 701 and a clamping frame two 702, and a clamping threaded rod 703 is threadedly connected to each of the clamping frame one 701 and the clamping frame two 702. A clamping knob 704 is fixedly arranged at one end of the clamping threaded rod 703, and the other end of the clamping threaded rod 703 is rotatably arranged on a clamping ring plate 705. A guide rod 706 is arranged on the outer wall of the clamping ring plate 705, and a clamping limiting plate 707 is fixedly arranged on the guide rod 706 after the guide rod 706 passes through the clamping frame one 701 and the clamping frame two 702. By rotating the clamping knob 704, the clamping threaded rod 703 can be driven to rotate, and then the clamping ring plate 705 and the guide rod 706 can drive the clamping limiting plate 707 to move close to the helium storage bottle 607, so as to achieve auxiliary clamping of the helium storage bottle 607.

[0029] In this embodiment, in order to realize the delivery and recovery of helium, a delivery and recovery assembly 8 is further arranged. The delivery and recovery assembly 8 comprises a delivery pump 801 and a recovery pump 802, which are respectively used for delivering helium from the helium storage bottle 607 into the vacuum box 2 and recovering the helium in the vacuum box 2 into the helium storage bottle 607. The delivery pump 801 is connected with the helium storage bottle 607 through a delivery high-pressure pipe 803, and connected with the vacuum box 2 through a delivery pipe 804. The recovery pump 802 is connected with the helium storage bottle 607 through a recovery hose 805, and connected with the vacuum box 2 through a recovery pipe 806.

[0030] The above is only a preferred embodiment of the present patent utility model, and is not used to limit the present patent utility model. Any modification, equivalent replacement and improvement, etc. made within the spirit and principle of the present patent utility model should be included in the protection scope of the present patent utility model.

Claims

1. A helium recovery device for airtightness testing, comprising a base plate (1), characterized in that, A vacuum chamber (2) is provided on the base plate (1), a vacuum assembly (3) is provided on the outer wall of the vacuum chamber (2), an adjustment assembly (4) is provided on the base plate (1), a drive assembly (5) is provided on one side of the adjustment assembly (4), a fixing assembly (6) is provided on the adjustment assembly (4), a clamping assembly (7) is provided above the fixing assembly (6), and a conveying and recycling assembly (8) is provided between the clamping assembly (7) and the vacuum chamber (2). The adjustment component (4) includes a vertical plate (401) fixedly mounted on the base plate (1), a slide rail (402) is provided in the vertical plate (401), a slider (403) is slidably mounted in the slide rail (402), and an adjustment connecting plate (404) is fixedly mounted on one side of the slider (403).

2. The helium recovery device for airtightness detection according to claim 1, characterized in that, The drive assembly (5) includes a horizontal plate (501) fixedly mounted on the outer wall of the vertical plate (401). A drive motor (502) is mounted on the horizontal plate (501). A drive threaded rod (503) is fixedly mounted on the output end of the drive motor (502). One end of the drive threaded rod (503) away from the output end of the drive motor (502) is rotatably mounted on the base plate (1). A lead screw nut pair (504) is threadedly connected to the drive threaded rod (503). A drive connecting rod (505) is provided between the lead screw nut pair (504) and the slider (403).

3. A helium recovery device for airtightness detection according to claim 2, characterized in that, The fixing assembly (6) includes a fixing plate one (601) fixedly disposed on the outer wall of the adjusting connecting plate (404), a fixing plate two (602) disposed on the side of the fixing plate one (601) away from the outer wall of the adjusting connecting plate (404), a fixing connecting plate one (603) symmetrically disposed on the outer wall of the fixing plate one (601), a fixing connecting plate two (604) disposed on the outer wall of the fixing plate two (602), a fixing threaded rod (605) disposed on the outer wall of the fixing connecting plate one (603), a fixing nut (606) threaded through the fixing connecting plate two (604) at one end of the fixing threaded rod (605) away from the outer wall of the fixing connecting plate one (603), and a helium storage bottle (607) disposed between the fixing plate one (601) and the fixing plate two (602).

4. A helium recovery device for airtightness detection according to claim 3, characterized in that, The clamping assembly (7) includes a clamping frame one (701) and a clamping frame two (702) fixedly mounted on the outer wall of the upright plate (401). The clamping frame one (701) and the clamping frame two (702) are threadedly connected with clamping threaded rods (703). One end of the clamping threaded rod (703) is fixedly provided with a clamping knob (704). The end of the clamping threaded rod (703) away from the clamping knob (704) is rotatably mounted on a clamping ring plate (705). The outer wall of the clamping ring plate (705) is provided with a guide rod (706). The end of the guide rod (706) away from the clamping ring plate (705) passes through the clamping frame one (701) and the clamping frame two (702) and is fixedly provided with a clamping limiting plate (707).

5. A helium recovery device for airtightness detection according to claim 4, characterized in that, The conveying and recycling assembly (8) includes a conveying pump (801) fixedly mounted on the vacuum chamber (2) and a recycling pump (802) fixedly mounted on the base plate (1). A high-pressure conveying pipe (803) is provided between the conveying pump (801) and the helium storage bottle (607). A conveying pipe (804) is provided between the conveying pump (801) and the vacuum chamber (2). A recycling hose (805) is provided between the recycling pump (802) and the helium storage bottle (607). A recycling pipe (806) is provided between the recycling pump (802) and the vacuum chamber (2).

6. A helium recovery device for airtightness detection according to claim 5, characterized in that, The vacuum assembly (3) includes a tray (301) fixedly mounted on the outer wall of the vacuum chamber (2), a vacuum pump (302) is mounted on the tray (301), and a vacuum tube (303) is provided between the vacuum pump (302) and the vacuum chamber (2).

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