Vacuum cup vacuum leak hunting device

Abstract

The utility model discloses a vacuum leak hunting device for a vacuum cup, which comprises a workbench, a support frame is welded on the workbench, a detection assembly is arranged on the support frame, the detection assembly comprises a vacuum generator fixedly connected to the top end of the support frame, a connecting pipe is fixedly arranged at the output end of the vacuum generator, and the connecting pipe is connected with the support frame. An electric push rod is fixedly installed at the center of the bottom end of the supporting frame, a disc is fixedly connected to the output end of the electric push rod, a silica gel pad is fixedly connected to the bottom end of the disc, and an air inlet pipe is fixedly connected to the end, away from the electric push rod, of the disc; the other end, away from the electric push rod, of the disc is fixedly connected with an air outlet pipe, the electric push rod stretches out and draws back, a silica gel pad at the bottom end of the disc makes contact with a cup opening of the vacuum cup to be detected, the interior of the vacuum cup to be detected is a closed space, airtightness detection can be conveniently conducted on the vacuum cup to be detected, and the efficiency of airtightness detection of the vacuum cup is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of leak detection of heat preservation cups, and specifically, to a vacuum leak detection device for heat preservation cups. Background Technique

[0002] The stainless steel heat preservation cups used in daily life are mainly made of stainless steel tubes through a series of processes such as welding. The middle is a double-layer stainless steel bottle liner, and a vacuum state is drawn between the two layers of bottle liners to avoid heat convection, thereby playing a heat preservation role. During the production process of heat preservation cups, it is necessary to detect the air tightness of the heat preservation cups to check whether the heat preservation cups during the production process meet the production process requirements. However, there is currently no unified and standardized standard for detecting the air tightness of heat preservation cups. The detection methods and process requirements of each heat preservation cup manufacturer are also different, and there are also great differences in the key parameters involved in air tightness detection (such as the negative pressure extraction time, negative pressure extraction value, pressure holding time, leak detection threshold, etc.).

[0003] Currently, for existing vacuum leak detection devices, it is usually necessary to manually place the heat preservation cup to be tested on the vacuum leak detection device, and it is necessary to manually operate to adsorb the cup mouth of the heat preservation cup with a silica gel suction cup to achieve the air tightness detection and judgment of the heat preservation cup. However, manually operating the silica gel suction cup to adsorb with the cup mouth of the heat preservation cup is time-consuming and laborious, and will affect the efficiency of air tightness detection of the heat preservation cup.

[0004] Regarding the problems in the related technology, no effective solution has been proposed yet. Content of the Utility Model

[0005] Regarding the problems in the related technology, the utility model proposes a vacuum leak detection device for heat preservation cups to overcome the above-mentioned technical problems existing in the existing related technology.

[0006] Therefore, the specific technical solution adopted by the utility model is as follows:

[0007] A vacuum leak detection device for a thermos cup, comprising a workbench, wherein support legs are fixedly connected to the four peripheries of the bottom end of the workbench, a support frame is welded on the workbench, a detection assembly is arranged on the support frame, the detection assembly includes a vacuum generator fixedly connected to the top end of the support frame, a connecting pipe is fixedly arranged on the output end of the vacuum generator, an electric push rod is fixedly installed at the center of the bottom end of the support frame, the output end of the electric push rod is fixedly connected to a disc, a silica gel pad is fixedly connected to the bottom end of the disc, an air inlet pipe is fixedly connected to one end of the disc away from the electric push rod, the bottom end of the air inlet pipe penetrates through the silica gel pad, the end of the connecting pipe away from the vacuum generator penetrates through the support frame and is fixedly connected to the air inlet pipe through a telescopic hose, an air outlet pipe is fixedly connected to the other end of the disc away from the electric push rod, the bottom end of the air outlet pipe penetrates through the silica gel pad, and a clamping assembly is arranged at one end of the workbench away from the support frame.

[0008] Further, in order to fix the thermos cup firmly on the workbench, the clamping assembly includes a clamping cavity opened inside the workbench, a lead screw is rotatably connected inside the clamping cavity, moving blocks are symmetrically arranged on the lead screw, the top ends of the moving blocks all extend outside the workbench and are fixedly connected to clamping arc plates, and one end of the lead screw extends outside the workbench and is connected to the output end of a reciprocating motor.

[0009] Further, for the convenience of personnel control, a controller is fixedly arranged on one end of the outer surface of the support frame, and the controller is electrically connected to the reciprocating motor, the vacuum generator and the electric push rod.

[0010] Further, in order to facilitate the real-time display of the air pressure value inside the thermos cup, a display is fixedly installed on the other end of the outer surface of the support frame, and the display is electrically connected to the controller.

[0011] Further, in order to facilitate personnel to find unqualified thermos cups, an alarm lamp is fixedly installed on one end of the top end of the support frame close to the display, and the alarm lamp is electrically connected to the controller.

[0012] Further, in order to ensure the accuracy of the air pressure value, an air inlet valve is fixedly arranged on the air inlet pipe, the air inlet valve is wirelessly connected to the controller, an air outlet valve is fixedly arranged on the air outlet pipe, and the air outlet valve is wirelessly connected to the controller.

[0013] Further, in order to facilitate the detection of the air pressure value inside the thermos cup, a digital display air pressure gauge is fixedly installed on one side of the disc away from the electric push rod, the digital display air pressure gauge is wirelessly connected to the controller, and the output end of the digital display air pressure gauge penetrates through the silica gel pad.

[0014] Furthermore, in order to prevent the clamping arc plates from damaging the thermos cup, rubber gaskets are fixedly connected to the inner surfaces of the clamping arc plates.

[0015] The beneficial effects of the present utility model are as follows:

[0016] 1. Under the action of the clamping assembly, the thermos cup to be tested is stabilized on the workbench. Open the intake valve and close the outlet valve. The controller makes the electric push rod work. The electric push rod expands and contracts itself, so that the silica gel pad at the bottom of the disc contacts the cup mouth of the thermos cup to be tested, making the inside of the thermos cup to be tested a closed space. The controller makes the vacuum generator work. The vacuum generator extracts the air inside the thermos cup to form a negative pressure. At this time, the digital display pressure gauge detects the air pressure value inside the thermos cup, transmits the data to the controller, and displays it on the display. After extracting the negative pressure for a certain period of time, the controller closes the intake valve. At the same time, the vacuum generator is turned off, and the current air pressure value is recorded. After maintaining the pressure for a certain period of time, the change in the air pressure value is detected. If the air pressure difference exceeds the critical value in the controller, the controller controls the alarm light to work, and the alarm light issues a warning in time, facilitating personnel to promptly discover unqualified thermos cups. The expansion and contraction of the electric push rod can easily realize the mutual adsorption between the silica gel pad and the cup mouth of the thermos cup, greatly improving the efficiency of the airtightness detection of the thermos cup.

[0017] 2. The thermos cup to be tested is placed on the workbench. The controller makes the reciprocating motor work. The reciprocating motor makes the lead screw rotate in the clamping cavity. The rotation of the lead screw makes the two moving blocks slide towards each other. The sliding of the moving blocks makes the clamping arc plates slide accordingly. The opposite sliding of the clamping arc plates stabilizes the thermos cup to be tested on the workbench, effectively preventing the thermos cup from shifting during the leak detection test and avoiding affecting the test efficiency. Description of the Drawings

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0019] Figure 1 is a schematic structural diagram of a thermos cup vacuum leak detection device according to an embodiment of the present utility model;

[0020] Figure 2 is a rear view structural diagram of a thermos cup vacuum leak detection device according to an embodiment of the present utility model;

[0021] Figure 3 is a cross-sectional view of a thermos cup vacuum leak detection device according to an embodiment of the present utility model;

[0022] Figure 4It is a schematic structural diagram of a disc in a vacuum leak detection device for a thermos cup according to an embodiment of the present invention.

[0023] In the figure:

[0024] 1. Workbench; 2. Clamping cavity; 3. Reciprocating motor; 4. Lead screw; 5. Moving block; 6. Clamping arc plate; 7. Rubber gasket; 8. Support frame; 9. Electric push rod; 10. Disc; 11. Silicone pad; 12. Inlet pipe; 13. Inlet valve; 14. Telescopic hose; 15. Connecting pipe; 16. Vacuum generator; 17. Outlet pipe; 18. Outlet valve; 19. Digital display pressure gauge; 20. Display; 21. Controller; 22. Alarm lamp; 23. Support leg. Specific embodiments

[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0026] According to an embodiment of the present invention, a vacuum leak detection device for a thermos cup is provided.

[0027] Embodiment 1;

[0028] Such as Figures 1-4As shown, the earthquake-proof high-voltage power distribution cabinet according to the embodiment of the present utility model includes a workbench 1. In order to make the workbench 1 stable on the ground, support legs 23 are fixedly connected to the four surrounding sides of the bottom end of the workbench 1. A support frame 8 is welded on the workbench 1. One end of the outer surface of the support frame 8 is fixedly provided with a controller 21, and the controller 21 is electrically connected to the power supply. A display 20 is fixedly installed at the other end of the outer surface of the support frame 8, and the display 20 is electrically connected to the controller 21. An alarm lamp 22 is fixedly installed at one end of the top of the support frame 8 close to the display 20, and the alarm lamp 22 is electrically connected to the controller 21. A detection component is arranged on the support frame 8. The detection component includes a vacuum generator 16 fixedly connected to the top of the support frame 8, and the vacuum generator 16 is electrically connected to the controller 21. A connecting pipe 15 is fixedly provided at the output end of the vacuum generator 16. An electric push rod 9 is fixedly installed at the center of the bottom end of the support frame 8, and the electric push rod 9 is electrically connected to the controller 21. The output end of the electric push rod 9 is fixedly connected to a disc 10. A silica gel pad 11 is fixedly connected to the bottom end of the disc 10. One end of the disc 10 far from the electric push rod 9 is fixedly connected to an air inlet pipe 12. An air inlet valve 13 is fixedly provided on the air inlet pipe 12, and the air inlet valve 13 is wirelessly connected to the controller 21. The bottom end of the air inlet pipe 12 penetrates through the silica gel pad 11. The end of the connecting pipe 15 far from the vacuum generator 16 penetrates through the support frame 8 and is fixedly connected to the air inlet pipe 12 through a telescopic hose 14. The telescopic hose 14 has a certain ductility. The other end of the disc 10 far from the electric push rod 9 is fixedly connected to an air outlet pipe 17. An air outlet valve 18 is fixedly provided on the air outlet pipe 17, and the air outlet valve 18 is wirelessly connected to the controller 21. The bottom end of the air outlet pipe 17 penetrates through the silica gel pad 11. Both the air inlet valve 13 and the air outlet valve 18 are solenoid valves. In order to facilitate detecting the air pressure value in the thermos cup, a digital display air pressure gauge 19 is fixedly installed on one side of the disc 10 far from the electric push rod 9, and the digital display air pressure gauge 19 is wirelessly connected to the controller 21. The output end of the digital display air pressure gauge 19 penetrates through the silica gel pad 11. The output end of the digital display air pressure gauge 19, the air inlet pipe 12 and the air outlet pipe 17 are always inside the cup mouth of the thermos cup. A clamping component is arranged at one end of the workbench 1 far from the support frame 8. Under the action of the clamping component, the thermos cup to be tested is stabilized on the workbench 1. Open the air inlet valve 13 and close the air outlet valve 18. The controller 21 makes the electric push rod 9 work. The electric push rod 9 expands and contracts itself, so that the silica gel pad 11 at the bottom end of the disc 10 contacts the cup mouth of the thermos cup to be tested, making the inside of the thermos cup to be tested a closed space. The controller 21 makes the vacuum generator 16 work, and the vacuum generator 16 extracts the air inside the thermos cup to form a negative pressure. At this time, the digital display air pressure gauge 19 detects the air pressure value in the thermos cup, transmits the data to the controller 21, and is displayed on the display 20. After extracting the negative pressure for a certain period of time, the controller 21 closes the air inlet valve 13. At the same time, the vacuum generator 16 is turned off, and the current air pressure value is recorded. After maintaining the pressure for a certain period of time, the change in the air pressure value is detected. If the air pressure difference exceeds the critical value in the controller 21,The controller 21 controls the operation of the warning lamp 22. The warning lamp 22 emits a warning in a timely manner, facilitating personnel to promptly discover unqualified thermos cups. The telescopic movement of the electric push rod 9 can easily achieve the mutual adsorption between the silica gel pad 11 and the cup mouth of the thermos cup, greatly improving the efficiency of the airtightness detection of the thermos cup.

[0029] Embodiment 2;

[0030] Please refer to Figures 1-3 , in order to fix the thermos cup firmly on the workbench 1, the clamping assembly includes a clamping cavity 2 opened inside the workbench 1. A lead screw 4 is rotatably connected inside the clamping cavity 2. Symmetrically arranged moving blocks 5 are provided on the lead screw 4. The moving blocks 5 are threadedly connected to the lead screw 4. The tops of the moving blocks 5 all extend outside the workbench 1 and are fixedly connected to the clamping arc plates 6. In order to prevent the clamping arc plates 6 from damaging the thermos cup, rubber gaskets 7 are fixedly connected to the inner surfaces of the clamping arc plates 6. One end of the lead screw 4 extends outside the workbench 1 and is connected to the output end of the reciprocating motor 3. The reciprocating motor 3 is fixedly installed outside the workbench 1. Place the thermos cup to be tested on the workbench 1. The controller 21 makes the reciprocating motor 3 work. The reciprocating motor 3 makes the lead screw 4 rotate inside the clamping cavity 2. The rotation of the lead screw 4 makes the two moving blocks 5 slide towards each other. The sliding of the moving blocks 5 makes the clamping arc plates 6 slide accordingly. The opposite sliding of the clamping arc plates 6 fixes the thermos cup to be tested firmly on the workbench 1, effectively preventing the thermos cup from shifting during the leak detection test and avoiding affecting the test efficiency.

[0031] To facilitate the understanding of the above technical solution of the present invention, the working principle or operation method of the present invention in the actual process will be described in detail below.

[0032] In actual application, first, place the thermos cup to be tested on the workbench 1. Secondly, make the reciprocating motor 3 work through the controller 21. The reciprocating motor 3 makes the lead screw 4 rotate in the clamping cavity 2. The rotation of the lead screw 4 causes the two moving blocks 5 to slide towards each other. The sliding of the moving blocks 5 causes the clamping arc plates 6 to slide accordingly. The opposite sliding of the clamping arc plates 6 stabilizes the thermos cup to be tested on the workbench 1. Then, the controller 21 opens the intake valve 13, closes the outlet valve 18, and makes the electric push rod 9 work. The electric push rod 9 expands and contracts itself, making the silica gel pad 11 at the bottom of the disc 10 contact the cup mouth of the thermos cup to be tested, making the inside of the thermos cup to be tested a closed space. The controller 21 makes the vacuum generator 16 work. The vacuum generator 16 extracts the air inside the thermos cup to form a negative pressure. At this time, the digital display pressure gauge 19 detects the air pressure value inside the thermos cup, transmits the data to the controller 21, and displays it on the display 20. After extracting the negative pressure for a certain period of time, the controller 21 closes the intake valve 13. At the same time, it turns off the vacuum generator 16 and records the current air pressure value. After maintaining the pressure for a certain period of time, it detects the change in the air pressure value. If the air pressure difference exceeds the critical value in the controller 21, the controller 21 controls the alarm lamp 22 to work. The alarm lamp 22 promptly gives a warning, facilitating personnel to promptly discover unqualified thermos cups. Finally, if it is necessary to separate the silica gel pad 11 from the cup mouth of the thermos cup to be tested, open the outlet valve 18 to allow gas to enter the thermos cup to be tested, facilitating the separation of the silica gel pad 11 from the thermos cup to be tested.

[0033] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A vacuum leak detection device for a thermos cup, comprising a workbench (1), characterized in that: The bottom of the workbench (1) is fixedly connected with support legs (23) around the periphery, a support frame (8) is welded on the workbench (1), a detection assembly is provided on the support frame (8), the detection assembly comprises a vacuum generator (16) fixedly connected to the top of the support frame (8), a connecting pipe (15) is fixedly provided on the output end of the vacuum generator (16), an electric push rod (9) is fixedly installed at the center of the bottom end of the support frame (8), a disc (10) is fixedly connected to the output end of the electric push rod (9), a silicone pad (11) is fixedly connected to the bottom end of the disc (10), and the disc An air inlet pipe (12) is fixedly connected to one end of the disc (10) away from the electric push rod (9), and the bottom end of the air inlet pipe (12) passes through the silicone pad (11); an end of the connecting pipe (15) away from the vacuum generator (16) passes through the support frame (8) and is fixedly connected to the air inlet pipe (12) via a telescopic hose (14); an air outlet pipe (17) is fixedly connected to the other end of the disc (10) away from the electric push rod (9), and the bottom end of the air outlet pipe (17) passes through the silicone pad (11); and a clamping assembly is provided at one end of the workbench (1) away from the support frame (8).

2. The vacuum leak detection device for a thermos cup according to claim 1, characterized in that: The clamping assembly comprises a clamping cavity (2) opened inside the workbench (1), a screw rod (4) rotatably connected inside the clamping cavity (2), a moving block (5) symmetrically arranged on the screw rod (4), the top end of each of the moving blocks (5) extending outside the workbench (1) and fixedly connected to a clamping arc plate (6), and one end of the screw rod (4) extending outside the workbench (1) and connected to an output end of a reciprocating motor (3).

3. The vacuum leak detection device for a thermos cup according to claim 2, characterized in that: A controller (21) is fixedly provided on one end of the outer surface of the support frame (8), and the controller (21) is electrically connected to the reciprocating motor (3), the vacuum generator (16) and the electric push rod (9).

4. The vacuum leak detection device for a thermos cup according to claim 3, characterized in that: A display (20) is fixedly mounted on the other end of the outer surface of the support frame (8), and the display (20) is electrically connected to the controller (21).

5. The vacuum leak detection device for a thermos cup according to claim 4, characterized in that: An alarm light (22) is fixedly mounted on one end of the top end of the support frame (8) close to the display (20), and the alarm light (22) is electrically connected to the controller (21).

6. The vacuum leak detection device for a thermos cup according to claim 3, characterized in that: An air intake valve (13) is fixedly provided on the air intake pipe (12), and the air intake valve (13) is wirelessly connected to the controller (21); an air outlet valve (18) is fixedly provided on the air outlet pipe (17), and the air outlet valve (18) is wirelessly connected to the controller (21).

7. The vacuum leak detection device for a thermos cup according to claim 3, characterized in that: A digital barometer (19) is fixedly mounted on a side of the disk (10) away from the electric push rod (9); the digital barometer (19) is wirelessly connected to the controller (21); and an output end of the digital barometer (19) passes through the silicone pad (11).

8. The vacuum leak detection device for a thermos cup according to claim 2, characterized in that: The inner surface of the clamping arc plate (6) is fixedly connected with a rubber gasket (7).

Images