Airtight testing machine

Abstract

The utility model discloses an air tightness testing machine which comprises a base, the top of the base is fixedly connected with a supporting rod and a mounting seat respectively, the top end of the supporting rod is fixedly connected with a top seat, the top of the top seat is fixedly connected with a lifting rod, and the bottom end of the lifting rod is fixedly connected with a butt joint. The outer side of the butt joint is fixedly connected with an air exhaust connecting pipe and an air inflation connecting pipe, the outer side of the air exhaust connecting pipe is fixedly connected with an air exhaust valve, one end of the air exhaust connecting pipe is fixedly connected with an air exhaust pipe, one end of the air exhaust pipe is fixedly connected with an air pump, the outer side of the air inflation connecting pipe is fixedly connected with an air inflation valve, and one end of the air inflation connecting pipe is fixedly connected with an air inflation pipe. According to the air tightness testing machine, through the arrangement of the air extraction valve, the air extraction pump, the air inflation valve and the air inflation pump, the detection effect of the air tightness testing machine is improved, the air tightness testing machine can detect a workpiece in a pressurizing mode and a negative pressure mode, and therefore the practicability of the air tightness testing machine is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of airtight testing machines, in particular to an airtight testing machine. Background Art

[0002] Air tightness testing machines are widely used in automobile cylinders, pistons, petroleum, coal mines, hoses, pressure gauges, gas tanks and other industries where gas pressurization and air tightness tests are required.

[0003] The patent document with the prior art publication number CN216269316U provides an air tightness tester, including a workbench, a power control device is arranged inside the workbench, a cushion surface is arranged on the workbench surface, support plates are fixedly arranged at both ends of the cushion surface, a horizontal plate perpendicular to the support plate is arranged on the support plate, an inflatable cylinder is arranged on the horizontal plate, a pressing column is arranged below the cylinder, a plurality of suction holes are arranged in the center of the cushion surface, a through hole is arranged near the cushion surface on the workbench, an alarm light and an air pressure display are arranged at the rear position of the workbench, and a test switch is arranged on one side of the workbench. Compared with the prior art, the present invention has the following advantages: after the product is fixed at the detection position, the product is pressed by the pressing column, and the vacuum pumping method is adopted. By monitoring the vacuum pressure data inside the measured product, it is judged whether the product has cracks and leaks. When the air tightness pressure is unqualified, an alarm can be automatically issued, which greatly improves the detection efficiency and accuracy, reduces the labor of employees, and improves the qualified rate of product shipments, with obvious economic benefits.

[0004] However, when the existing airtight testing machines are in use, most of them perform pressurized airtight testing or negative pressure airtight testing. Although both methods can perform airtight testing, the same device cannot perform both pressurized and negative pressure testing, resulting in poor practicality of the airtight testing machine and poor airtight testing effect. For this reason, we propose an airtight testing machine. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies of the prior art, the utility model provides an airtight testing machine to solve the problems raised in the above background technology.

[0007] (II) Technical solution

[0008] To achieve the above objectives, the utility model is implemented through the following technical solutions: an airtight testing machine, comprising a base, the top of the base is fixedly connected with a support rod and a mounting seat respectively, the top of the support rod is fixedly connected with a top seat, the top of the top seat is fixedly connected with a lifting rod, the bottom end of the lifting rod is fixedly connected with a docking joint, the outer sides of the docking joint are respectively fixedly connected with an exhaust pipe and an inflation pipe, the outer side of the exhaust pipe is fixedly connected with an exhaust valve, one end of the exhaust pipe is fixedly connected with an exhaust pipe, one end of the exhaust pipe is fixedly connected with an exhaust pump, the outer side of the inflation pipe is fixedly connected with an inflation valve, one end of the inflation pipe is fixedly connected with an exhaust pipe, and one end of the inflation pipe is fixedly connected with an exhaust pump, the outer side of the inflation pipe is fixedly connected with an inflation valve, one end of the inflation pipe is fixedly connected with an inflation pipe, and one end of the inflation pipe is fixedly connected with an inflation pump.

[0009] Preferably, a mounting bracket is fixedly connected to one side of the vacuum pump, and an exhaust pipe is fixedly connected to the other side of the vacuum pump.

[0010] Preferably, a handle is fixedly connected to the top of the air pump, a fixing seat is fixedly connected to the bottom of the air pump, and an air inlet pipe is fixedly connected to one side of the air pump.

[0011] Preferably, a control panel and a display screen are fixedly connected to the front of the base, and an operation button is fixedly connected to the front of the control panel.

[0012] Preferably, a supporting leg is fixedly connected to the bottom of the base, and four supporting legs are provided, and the four supporting legs are respectively located at four corners of the bottom of the base.

[0013] Preferably, a test workpiece is mounted on the top of the mounting seat, and the mounting seat is made of metal material.

[0014] (III) Beneficial effects

[0015] The utility model provides an airtight testing machine, which has the following beneficial effects:

[0016] (1) This airtight testing machine is equipped with an exhaust valve, an exhaust pump, an inflation valve and an inflation pump. When using the airtight testing machine, the staff installs the test workpiece on the mounting seat, and then starts the lifting rod. The lifting rod drives the docking joint to move downward. At this time, the docking joint will support the test workpiece. Then the user opens the exhaust valve and closes the inflation valve, and then starts the exhaust pump. The exhaust pump generates suction, which acts on the docking joint through the exhaust pipe, thereby extracting the air inside the test workpiece. When a certain pressure is extracted, the extraction is stopped, thereby detecting the sealing of the test workpiece under negative pressure. After the detection, the staff closes the exhaust valve and opens the inflation valve, and then starts the inflation pump. At this time, the inflation pump inhales gas through the intake pipe, and the gas acts on the docking joint through the inflation pipe and inflates the inside of the test workpiece, thereby detecting the sealing of the test workpiece under the stamping state. In this way, the detection effect of the airtight testing machine is improved, so that the airtight testing machine can detect the workpiece in both pressurized and negative pressure modes, thereby improving the practicality of the airtight testing machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a partial structural schematic diagram of the mounting seat of the utility model;

[0019] Figure 3 It is a partial structural schematic diagram of the utility model air pump;

[0020] Figure 4 It is a partial structural schematic diagram of the utility model air extraction pump.

[0021] In the figure: 1. base; 2. supporting legs; 3. control panel; 4. operating buttons; 5. display screen; 6. supporting rod; 7. top seat; 8. lifting rod; 9. docking joint; 10. exhaust pipe; 11. exhaust valve; 12. exhaust pipe; 13. exhaust pump; 1301. mounting bracket; 1302. exhaust pipe; 14. inflation pipe; 15. inflation valve; 16. inflation pipe; 17. inflation pump; 1701. fixing seat; 1702. air inlet pipe; 1703. handle; 18. mounting seat; 19. test workpiece. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-4 The utility model provides a technical solution: an airtight testing machine, comprising a base 1, the top of the base 1 is fixedly connected with a support rod 6 and a mounting seat 18, the top of the support rod 6 is fixedly connected with a top seat 7, the top of the top seat 7 is fixedly connected with a lifting rod 8, the bottom of the lifting rod 8 is fixedly connected with a docking joint 9, the outer sides of the docking joint 9 are respectively fixedly connected with an exhaust pipe 10 and an inflation pipe 14, the outer side of the exhaust pipe 10 is fixedly connected with an exhaust valve 11, one end of the exhaust pipe 10 is fixedly connected with an exhaust pipe 12, one end of the exhaust pipe 12 is fixedly connected with an exhaust pump 13, the outer side of the inflation pipe 14 is fixedly connected with an inflation valve 15, one end of the inflation pipe 14 is fixedly connected with an inflation pipe 16, and one end of the inflation pipe 16 is fixedly connected with an inflation pump 17.

[0024] In the present embodiment, specifically, one side of the vacuum pump 13 is fixedly connected with a mounting bracket 1301, and the other side of the vacuum pump 13 is fixedly connected with an exhaust pipe 1302. By starting the vacuum pump 13, the vacuum pump 13 generates suction, and the suction acts on the docking joint 9 through the vacuum pipe 12, thereby extracting the air inside the test workpiece 19. When a certain pressure is extracted, the extraction is stopped, thereby detecting the sealing of the test workpiece 19 under negative pressure.

[0025] In the present embodiment, specifically, a handle 1703 is fixedly connected to the top of the air pump 17, a fixing seat 1701 is fixedly connected to the bottom of the air pump 17, and an air inlet pipe 1702 is fixedly connected to one side of the air pump 17. By starting the air pump 17, the air pump 17 inhales gas through the air inlet pipe 1702, and the gas acts on the docking joint 9 through the air pipe 16, and inflates the inside of the test workpiece 19, thereby detecting the sealing performance of the test workpiece 19 in the stamping state.

[0026] In the present embodiment, specifically, a control panel 3 and a display screen 5 are fixedly connected to the front of the base 1, and an operation button 4 is fixedly connected to the front of the control panel 3. The operation button 4 is convenient for the staff to operate the airtight testing machine, and the display screen 5 can be used to check whether there is any leakage in the workpiece.

[0027] In this embodiment, specifically, the bottom of the base 1 is fixedly connected with a supporting leg 2, and four supporting legs 2 are provided. The four supporting legs 2 are respectively located at the four corners of the bottom of the base 1, so that the airtight testing machine can be placed more stably.

[0028] In this embodiment, specifically, a test workpiece 19 is installed on the top of the mounting seat 18, and the mounting seat 18 is made of metal material, so that the mounting seat 18 is more durable and not easy to be damaged.

[0029] Working principle: After the utility model is installed, first check the installation fixation and safety protection of the utility model. When using the airtight test machine, the staff installs the test workpiece 19 on the mounting seat 18, and then starts the lifting rod 8, which drives the docking joint 9 to move downward. At this time, the docking joint 9 will support the test workpiece 19, and then the user opens the air extraction valve 11 and closes the air filling valve 15, and then starts the air extraction pump 13. The air extraction pump 13 generates suction, and the suction force acts on the docking joint 9 through the air extraction pipe 12, thereby the air inside the test workpiece 19 is When a certain pressure is extracted, the extraction will be stopped to detect the sealing performance of the test workpiece 19 under negative pressure. After the detection, the staff closes the exhaust valve 11 and opens the inflation valve 15, and then starts the inflation pump 17. At this time, the inflation pump 17 inhales gas through the air inlet pipe 1702, and the gas acts on the docking joint 9 through the inflation pipe 16, and inflates the inside of the test workpiece 19, thereby detecting the sealing performance of the test workpiece 19 under the stamping state. This completes the use process of the utility model, which has a simple structure and is safe and convenient to use.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

[0031] In 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 one; it can be a mechanical connection, an electrical connection, or communication with each other; 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, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] Obviously, the embodiments described above are only some embodiments of the utility model, rather than all embodiments. The preferred embodiments of the utility model are given in the accompanying drawings, but they do not limit the patent scope of the utility model. The utility model can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the utility model more thorough and comprehensive. Although the utility model is described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific implementation methods, or to replace some of the technical features therein with equivalents. Any equivalent structure made using the contents of the utility model specification and the accompanying drawings, directly or indirectly used in other related technical fields, is also within the scope of patent protection of the utility model.

Claims

1. An airtightness testing machine, comprising a base (1), characterized in that: The top of the base (1) is fixedly connected to a support rod (6) and a mounting seat (18), the top of the support rod (6) is fixedly connected to a top seat (7), the top of the top seat (7) is fixedly connected to a lifting rod (8), the bottom of the lifting rod (8) is fixedly connected to a docking joint (9), the outer side of the docking joint (9) is fixedly connected to an air extraction pipe (10) and an air charging pipe (14), the outer side of the air extraction pipe (10) is fixedly connected to an air extraction valve (11), one end of the air extraction pipe (10) is fixedly connected to an air extraction pipe (12), one end of the air extraction pipe (12) is fixedly connected to an air extraction pump (13), the outer side of the air charging pipe (14) is fixedly connected to an air charging valve (15), one end of the air charging pipe (14) is fixedly connected to an air charging pipe (16), and one end of the air charging pipe (16) is fixedly connected to an air charging pump (17).

2. The airtight testing machine according to claim 1, characterized in that: One side of the air pump (13) is fixedly connected to a mounting bracket (1301), and the other side of the air pump (13) is fixedly connected to an exhaust pipe (1302).

3. The airtight testing machine according to claim 1, characterized in that: The top of the air pump (17) is fixedly connected to a handle (1703), the bottom of the air pump (17) is fixedly connected to a fixing seat (1701), and one side of the air pump (17) is fixedly connected to an air inlet pipe (1702).

4. The airtight testing machine according to claim 1, characterized in that: A control panel (3) and a display screen (5) are fixedly connected to the front of the base (1), and an operation button (4) is fixedly connected to the front of the control panel (3).

5. The airtight testing machine according to claim 1, characterized in that: The bottom of the base (1) is fixedly connected with a support leg (2), and four support legs (2) are provided. The four support legs (2) are respectively located at the four corners of the bottom of the base (1).

6. The airtight testing machine according to claim 1, characterized in that: A test workpiece (19) is mounted on the top of the mounting seat (18), and the mounting seat (18) is made of metal material.

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