Water tank for air tightness detection

Abstract

The utility model discloses a water tank for air tightness detection, which is used for solving the technical problem of low automation degree of the existing water tank for product air tightness detection. The water tank comprises a rack, a tank body used for containing water and a tank cover used for covering an opening in the top of the tank body. A lifting driving part is installed on the rack, the output end of the lifting driving part is connected with the box cover, the box body is located below the box cover, and the box cover can be driven to move in the vertical direction so as to cover an opening in the top of the box body; the box cover is communicated with an air inlet pipe, the air inlet pipe is connected with an air pump, the air pump is connected with an air source, and the air inlet pipe is connected with a pressure proportional valve; the box body is provided with a lifting assembly, the lifting assembly is connected with a tray, and a positioning cavity used for containing products is formed in the tray.

Description

TECHNICAL FIELD

[0001] The utility model relates to test equipment design technical field especially relates to a water tank for air tightness detection. BACKGROUND

[0002] In prior art, to ensure the air tightness of products, the air tightness of products needs to be detected before leaving factory, at present, the common air tightness detection operation is as follows: the product is placed in the water tank with certain pressure, is taken out after a period of time, and the air tightness of product is judged whether it meets the standard through image detection or weighing means.

[0003] At present, the water tank commonly used for air tightness detection is generally low in automation, specifically, the common water tank generally comprises a tank body and a tank cover hinged on the tank body, the operator places the product in the tank body, and then needs to cover the tank cover in the tank body to ensure that the tank cover and the tank body form a sealed environment. Since the products are detected in large quantities, it means that the operator needs to continuously open or close the tank cover, which causes high work intensity to the operator in the long run, and after the test is completed, the tank cover needs to be opened immediately, and the product needs to leave the water surface, which also brings certain operation difficulty to the operator.

[0004] Therefore, finding a technical scheme capable of solving the above technical problems becomes an important subject for the person skilled in the art to research. UTILITY MODEL CONTENT

[0005] The utility model embodiment discloses a water tank for air tightness detection for solving the technical problem of low automation degree of the water tank for product air tightness detection.

[0006] The utility model provides a water tank for air tightness detection, which comprises a rack, a tank body for loading water and a tank cover for covering the top opening of the tank body.

[0007] A lifting driving element is installed on the rack, the output end of the lifting driving element is connected with the tank cover, the tank body is located below the tank cover, and the tank cover can be driven to move in the vertical direction to cover the top opening of the tank body.

[0008] The tank cover is connected with an air inlet pipe, the air inlet pipe is connected with an air pump, the air pump is connected with an air source, and a pressure proportional valve is connected to the air inlet pipe.

[0009] The tank body is provided with a lifting assembly, the lifting assembly is connected with a tray, and the tray is provided with a positioning cavity for placing products.

[0010] Optionally, the box cover is also communicated with a water inlet pipe, the water inlet pipe is connected with a water inlet pump, the water pump is connected with a water source, the box cover is also installed with a liquid level sensor for detecting the water level in the box body, and the liquid level sensor is electrically connected with the water inlet pump.

[0011] Optionally, the box cover is also connected with a water outlet pipe, the water outlet pipe is connected with a water pump, and the water pump draws out the water in the box body through the water outlet pipe.

[0012] Optionally, the box cover is provided with a locking assembly for locking the box body.

[0013] The locking assembly comprises a finger clamp cylinder, the finger clamp cylinder is connected with a pair of clamping plates, and the clamping plates are provided with a first locking block and a second locking block.

[0014] The box body is provided with a first locking part matched with the first locking block and a second locking part matched with the second locking block.

[0015] When the box cover covers the top opening of the box body, the finger clamp cylinder drives the pair of clamping plates to approach each other, so that the first locking block is clamped on the first locking part and the second locking block is clamped on the second locking part.

[0016] Optionally, the rack is also installed with a linear module, the box body is connected to the linear module, and the box body can be driven by the linear module to move directly below the box cover.

[0017] Optionally, the lifting assembly comprises a rotary driving piece, a rotary shaft, a first support seat, a second support seat, a first connecting rod, a second connecting rod, a third connecting rod and a lifting plate.

[0018] The side wall of the box body is provided with a mounting through hole, the rotary shaft is inserted into the mounting through hole and extends into the box body, and the first support seat and the second support seat are located on opposite sides of the rotary shaft respectively.

[0019] The first end of the first connecting rod is hinged to the first support seat, and the second end of the first connecting rod is hinged to the first end of the lifting plate.

[0020] The first end of the second connecting rod is fixed on the rotary shaft, and the second end of the second connecting rod is hinged to the middle part of the lifting plate.

[0021] The first end of the third connecting rod is hinged to the second support seat, and the second end of the third connecting rod is hinged to the second end of the lifting plate.

[0022] The lifting plate is connected with the tray.

[0023] The rotating driving member is located outside the box body and is connected with the rotating shaft to drive the rotating shaft to rotate;

[0024] When the rotating shaft is driven to rotate in a first rotating direction, the lifting plate is lifted in a vertical direction to drive the tray to leave the water surface;

[0025] When the rotating shaft is driven to rotate in a second rotating direction, the lifting plate is lowered in a vertical direction to drive the tray to immerse in the water.

[0026] Optionally, an inner side edge of the top opening of the box body is provided with a first sealing ring;

[0027] The first sealing ring comprises a main body part and a first sealing edge and a second sealing edge connected to the main body part, the first sealing edge extends from the main body part to an upwardly inclined direction, and the second sealing edge extends from the main body part to a downwardly inclined direction.

[0028] Optionally, a second sealing ring is sleeved on the rotating shaft, and an outer side edge of the second sealing ring abuts against a hole wall of the mounting through hole.

[0029] Optionally, the second sealing ring comprises a sealing inner ring and a sealing outer ring arranged outside the sealing inner ring, an active gap is left between the sealing inner ring and the sealing outer ring, and an outer side edge of the sealing outer ring abuts against a hole wall of the mounting through hole.

[0030] Optionally, a pressure sensor is further mounted on the box cover;

[0031] The pressure sensor is used for detecting the air pressure in the box body.

[0032] Compared with the prior art, the utility model has the following beneficial effects:

[0033] In the air tightness detection water tank of the embodiment, the operator places the product on the tray through the mechanical hand, the lifting assembly drives the tray to move downward to immerse the product in the water, then the box cover is automatically closed on the top opening of the box body under the driving of the lifting driving member, after the product completes immersion, the box cover is separated from the box body under the driving of the lifting driving member, the lifting assembly drives the tray to ascend to make the product leave the water surface, and the air pressure in the box body can be automatically adjusted through the pressure proportional valve on the air pipe, so that the product can be immersed in the water under different pressure environments. In the above design, the water tank can automatically complete the opening and closing action of the box cover, and the air pressure in the box body can be automatically adjusted through the pressure proportional valve, the automation degree of the air tightness detection water tank is effectively improved, and the air tightness detection work of a large number of products can be met. BRIEF DESCRIPTION OF DRAWINGS

[0034] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description, obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0035] Figure 1 The utility model provides a water tank's structure schematic drawing for air tightness detection for the utility model provides a water tank's box cover structure schematic drawing for air tightness detection,

[0036] Figure 2 The utility model provides a water tank's structure schematic drawing for air tightness detection for the utility model provides a water tank's box cover structure schematic drawing for air tightness detection,

[0037] Figure 3 The utility model provides a water tank's structure schematic drawing for air tightness detection for the utility model provides a water tank's box cover structure schematic drawing for air tightness detection,

[0038] Figure 4 The utility model provides a water tank's structure schematic drawing for air tightness detection for the utility model provides a water tank's box cover structure schematic drawing for air tightness detection,

[0039] Figure 5 The utility model provides a water tank's structure schematic drawing for air tightness detection for the utility model provides a water tank's box cover structure schematic drawing for air tightness detection,

[0040] Figure 6 The utility model provides a water tank's structure schematic drawing for air tightness detection for the utility model provides a water tank's box cover structure schematic drawing for air tightness detection,

[0041] Figure 7 The utility model provides a water tank's structure schematic drawing for air tightness detection for the utility model provides a water tank's box cover structure schematic drawing for air tightness detection,

[0042] Illustration: rack 1, box 2, box cover 3, pressure proportional valve 4, rotary drive 5, linear module 6, pinch cylinder 7, clamping plate 8, first locking block 9, enemy locking block 10, liquid level sensor 11, pressure sensor 12, tray 13, positioning cavity 1301, first sealing ring 14, main body 1401, first sealing edge 1402, second sealing edge 1403, first locking part 15, second locking part 16, rotary shaft 17, first support seat 18, second support seat 19, first connecting rod 20, second connecting rod 21, third connecting rod 22, lifting plate 23, second sealing ring 24, sealing outer ring 2401, sealing inner ring 2402, lifting drive 25. DETAILED DESCRIPTION

[0043] The utility model discloses a water tank for air tightness detection for solving the technical problem of low automation degree of the existing water tank for product air tightness detection.

[0044] In order to make the person skilled in the art better understand the technical scheme of the present application, the present application will be further described in detail below in conjunction with the drawings and specific embodiments. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of the present application.

[0045] Please refer to Figures 1 to 7 The utility model discloses an air tightness detection water tank, including frame 1, be used to load water's box body 2 and be used to cover the top opening of box cover 3 of box body 2,

[0046] Lifting drive part 25 is installed on the frame 1, and the output end of the lifting drive part 25 is connected to the box cover 3, the box body 2 is located below the box cover 3, and the box cover 3 can be driven to move vertically to cover the top opening of the box body 2.

[0047] The box cover 3 is connected with an air inlet pipe, the air inlet pipe is connected with an air pump, the air pump is connected with an air source, and a pressure proportional valve 4 is connected to the air inlet pipe.

[0048] The box body 2 is provided with a lifting assembly, the lifting assembly is connected with a tray 13, and the tray 13 is provided with a positioning cavity 1301 for placing products.

[0049] In addition, a pressure sensor 12 for detecting the air pressure inside the box body 2 is also installed on the box cover 3.

[0050] Specifically, the air source in the embodiment is specifically a gas storage tank.

[0051] In the air tightness detection water tank of the embodiment, after the operator places the products in the tray 13 by the mechanical hand, the lifting assembly drives the tray 13 to move downward so that the products are soaked in water, then the box cover 3 is automatically covered on the top opening of the box body 2 under the driving of the lifting drive part 25, and after the products are soaked, the box cover 3 is separated from the box body 2 under the driving of the lifting drive part 25, the lifting assembly drives the tray 13 to rise so that the products are away from the water surface, and by adjusting the pressure proportional valve 4 on the air pipe, the air pressure in the box body 2 can be automatically adjusted, so that the products can be soaked in water under different pressure environments. In the above design, the water tank can automatically complete the opening and closing action of the box cover 3, and the air pressure in the box body 2 can be automatically adjusted through the pressure proportional valve 4, which effectively improves the automation degree of the air tightness detection water tank and can meet the air tightness detection work of large quantities of products.

[0052] Furthermore, the box cover 3 in this embodiment is also connected to a water inlet pipe, the water inlet pipe is connected to a water pump, the water pump is connected to a water source, and a liquid level sensor 11 for detecting the water level in the box body 2 is also installed in the box cover 3, and the liquid level sensor 11 is electrically connected to the water inlet pump.

[0053] Specifically, the water source in this embodiment may be a water tank or a water bucket storing water, etc., and this embodiment does not impose any limitation on this.

[0054] It should be noted that, through the above design, the water pump can draw water from the water source into the box 2, and when the water in the box 2 reaches a preset liquid level, the liquid level sensor 11 sends a control signal to the water pump through the PLC control system, causing the water pump to stop running.

[0055] Furthermore, the box cover 3 in this embodiment is also connected to a water outlet pipe, and the water outlet pipe is connected to a water pump, and the water pump pumps water out of the box body 2 through the water pump pipe.

[0056] It should be noted that, in order to facilitate the replacement of water in the box body 2, a water outlet pipe is connected to the box cover 3 in this embodiment, and the water outlet pipe extends into the box body 2. When the water in the box body 2 needs to be replaced, the water pump is turned on and the water in the box body 2 is pumped out through the water outlet pipe.

[0057] Furthermore, the box cover 3 in this embodiment is provided with a locking assembly for locking the box body 2;

[0058] The locking assembly includes a finger clamping cylinder 7, the finger clamping cylinder 7 is connected to a pair of clamping plates 8, and the clamping plates 8 are provided with a first locking block 9 and a second locking block 10;

[0059] The box body 2 is provided with a first locking portion 15 that cooperates with the first locking block 9 and a second locking portion 16 that cooperates with the second locking block 10;

[0060] When the box cover 3 is closed on the top opening of the box body 2 , the clamping finger cylinder 7 drives a pair of clamping plates 8 to move closer to each other, so that the first locking block 9 is engaged with the first locking portion 15 , and the second locking block 10 is engaged with the second locking portion 16 .

[0061] It should be noted that, through the above design, the box cover 3 can be completely locked on the box body 2, ensuring the tightness of the connection between the box cover 3 and the box body 2, and ensuring that the product can be immersed in a closed environment.

[0062] Furthermore, a linear module 6 is installed on the frame 1 in this embodiment, and the box body 2 is connected to the linear module 6 . The box body 2 can be moved to directly below the box cover 3 under the drive of the linear module 6 .

[0063] Specifically, the linear module 6 in the embodiment adopts a structure of motor cooperating with screw rod transmission.

[0064] It should be noted that through the above design, when it is needed to place the product on the tray 13 of the box 2, the linear module 6 drives the box 2 to move to the feeding position, so as to make it more convenient for the operator or the mechanical hand to place the product on the tray 13 of the box 2.

[0065] Further, the lifting assembly in the embodiment includes a rotary driving member 5, a rotary shaft 17, a first support seat 18, a second support seat 19, a first connecting rod 20, a second connecting rod 21, a third connecting rod 22, and a lifting plate 23.

[0066] The side wall of the box 2 is provided with a mounting through hole, the rotary shaft 17 is inserted into the mounting through hole and extends into the box 2, and the first support seat 18 and the second support seat 19 are respectively located on opposite sides of the rotary shaft 17.

[0067] The first end of the first connecting rod 20 is hinged to the first support seat 18, and the second end of the first connecting rod 20 is hinged to the first end of the lifting plate 23.

[0068] The first end of the second connecting rod 21 is fixed on the rotary shaft 17, and the second end of the second connecting rod 21 is hinged to the middle part of the lifting plate 23.

[0069] The first end of the third connecting rod 22 is hinged to the second support seat 19, and the second end of the third connecting rod 22 is hinged to the second end of the lifting plate 23.

[0070] The lifting plate 23 is connected with the tray 13.

[0071] When the rotary driving member 5 is located outside the box 2 and connected with the rotary shaft 17 to drive the rotary shaft 17 to rotate.

[0072] It should be noted that when the rotary shaft 17 is driven to rotate in a first rotation direction, specifically in a counterclockwise direction, the lifting plate 23 rises in the vertical direction to drive the tray 13 to move away from the water surface; when the rotary shaft 17 is driven to rotate in a second rotation direction, specifically in a clockwise direction, the lifting plate 23 descends in the vertical direction to drive the tray 13 to immerse in the water.

[0073] It should be further noted that the lifting assembly with the above structure can achieve the technical effect of stable lifting.

[0074] Further, the inner side edge of the top opening of the box 2 in the embodiment is provided with a first sealing ring 14.

[0075] The first sealing ring 14 comprises a main body 1401, a first sealing edge 1402 and a second sealing edge 1403 connected to the main body 1401, the first sealing edge 1402 extends from the main body 1401 to an upwardly inclined direction, and the second sealing edge 1403 extends from the main body 1401 to a downwardly inclined direction.

[0076] Specifically, the cross section of the first sealing ring 14 in the embodiment is Y-shaped structure.

[0077] It should be noted that the first sealing ring 14 is used to seal the gap between the box cover 3 and the box body 2 to ensure that the box cover 3 forms a sealed environment after being covered on the box body 2.

[0078] When the box cover 3 is driven to cover the top opening of the box body 2, the edge position of the box cover 3 will be pressed downward from top to bottom to the first sealing edge 1402, so that the first sealing edge 1402 and the second sealing edge 1403 are completely fitted, and the first sealing ring 14 can play a better sealing effect.

[0079] Further, the rotating shaft 17 in the embodiment is sleeved with a second sealing ring 24, and the outer side edge of the second sealing ring 24 abuts against the hole wall of the mounting hole.

[0080] It should be noted that the second sealing ring 24 is used to seal the gap between the rotating shaft 17 and the mounting hole to ensure that the box cover 3 forms a sealed environment after being covered on the box body 2.

[0081] Further, the second sealing ring 24 in the embodiment comprises a sealing inner ring 2402 and a sealing outer ring 2401 arranged outside the sealing inner ring 2402, and an active gap is left between the sealing inner ring 2402 and the sealing outer ring 2401, and the outer side edge of the sealing outer ring 2401 abuts against the hole wall of the mounting hole.

[0082] It should be noted that through the above design, the hole wall of the mounting hole will extrude the sealing outer ring 2401 to make the sealing outer ring 2401 fit on the sealing inner ring 2402, and the second sealing ring 24 can play a better sealing effect.

[0083] Further, the lifting driving part 25 in the embodiment is specifically a lifting cylinder, and the rotating driving part 5 is specifically a servo motor.

[0084] The above is a detailed description of the specific structure of the water tank for air tightness detection in the embodiment, and the water tank will be further described in a specific working process below, and the specific working process of the water tank for air tightness detection in the embodiment is as follows:

[0085] The linear module 6 drives the box body 2 to move to the loading position of the product, the operator or the mechanical hand places the product into the positioning cavity 1301 of the tray 13 of the box body 2, then the linear module 6 drives the box body 2 to move to the position right below the box cover 3, at this time, the box cover 3 is pressed and combined on the top opening of the box body 2 under the driving of the lifting driving part 25, and the locking assembly locks the box cover 3 on the box body 2, then the air pump introduces the gas into the box body 2 through the air inlet pipe to increase the air pressure in the box body 2, and the pressure proportional valve 4 adjusts the air pressure in the box body 2 to meet the setting requirement, then the lifting assembly drives the tray 13 to immerse in the water, and after a preset time period, the lifting assembly drives the tray 13 to leave the water surface, finally, the locking assembly is unlocked, and the lifting driving part 25 drives the box cover 3 to rise to make the box cover 3 leave the box body 2.

[0086] The water tank for air tightness detection is described in detail above, and for the general skilled in the art, the specific implementation and application range will be changed according to the idea of the embodiment of the utility model, and the content of the specification should not be understood as the limitation of the utility model.

Claims

1. A water tank for air tightness testing, characterized by, The utility model relates to a kind of water cooling cabinet, including rack (1), the tank (2) for loading water and the tank cover (3) for covering the top opening of the tank (2); Lifting driving element (25) is installed on the rack (1), the output end of the lifting driving element (25) is connected the tank cover (3), the tank (2) is located below the tank cover (3), the tank cover (3) can be driven to move in vertical direction to cover the top opening of the tank (2); The tank cover (3) is communicated with air inlet pipe, the air inlet pipe is connected with air pump, the air pump is connected with gas source, pressure proportional valve (4) is connected on the air inlet pipe; The tank (2) is installed with lifting assembly, the lifting assembly is connected with tray (13), the tray (13) is provided with positioning cavity (1301) for placing product in.

2. The water tank for air tightness test according to claim 1, wherein The tank cover (3) is also communicated with water inlet pipe, the water inlet pump is connected with the water inlet pipe, the water pump is connected with water source, the tank cover (3) is also installed with liquid level sensor (11) for detecting the water level in the tank (2), the liquid level sensor (11) is electrically connected with the water inlet pump.

3. The water tank for air tightness test according to claim 2, wherein The tank cover (3) is also connected with water outlet pipe, the water pump is connected with the water outlet pipe, the water pump is connected with water outlet pipe, and the water in the tank (2) is pumped out.

4. The water tank for detecting air tightness according to claim 1, wherein Locking assembly is provided on the tank cover (3) for locking the tank (2); The locking assembly includes a pair of clamping plates (8) connected to the clamping finger cylinder (7), and first and second locking blocks (9) and (10) are provided on the clamping plates (8). The tank (2) is provided with a first locking portion (15) matched with the first locking block (9) and a second locking portion (16) matched with the second locking block (10). When the tank cover (3) covers the top opening of the tank (2), the clamping finger cylinder (7) drives the pair of clamping plates (8) to approach each other, so that the first locking block (9) is engaged with the first locking portion (15) and the second locking block (10) is engaged with the second locking portion (16).

5. The water tank for detecting air tightness according to claim 1, wherein A linear module (6) is also installed on the rack (1), and the tank (2) is connected to the linear module (6), which can be driven by the linear module (6) to move directly below the tank cover (3).

6. The water tank for detecting air tightness according to claim 1, wherein The lifting assembly includes a rotary driving element (5), a rotary shaft (17), first and second support seats (18) and (19), first, second and third connecting rods (20), (21) and (22), and a lifting plate (23). The side wall of the tank (2) is provided with a mounting hole, the rotary shaft (17) is inserted into the mounting hole and extends into the tank (2), and the first and second support seats (18) and (19) are respectively located on opposite sides of the rotary shaft (17). The first end of the first connecting rod (20) is hinged to the first support seat (18), and the second end of the first connecting rod (20) is hinged to the first end of the lifting plate (23). The first end of the second connecting rod (21) is fixed on the rotating shaft (17), and the second end of the second connecting rod (21) is hingedly connected to the middle part of the lifting plate (23); The first end of the third connecting rod (22) is hingedly connected to the second support seat (19), and the second end of the third connecting rod (22) is hingedly connected to the second end of the lifting plate (23); The lifting plate (23) is connected with the tray (13); The rotating driving member (5) is located outside the box body (2) and is connected with the rotating shaft (17) to drive the rotating shaft (17) to rotate; When the rotating shaft (17) is driven to rotate in the first rotating direction, the lifting plate (23) rises in the vertical direction to drive the tray (13) to move away from the water surface; When the rotating shaft (17) is driven to rotate in the second rotating direction, the lifting plate (23) descends in the vertical direction to drive the tray (13) to be immersed in the water.

7. The water tank for detecting air tightness according to claim 1, wherein The inner side edge of the top opening of the box body (2) is provided with a first sealing ring (14); The first sealing ring (14) comprises a main body part (1401), a first sealing edge (1402) and a second sealing edge (1403) connected to the main body part (1401), the first sealing edge (1402) extends from the main body part (1401) to an upwardly inclined direction, and the second sealing edge (1403) extends from the main body part (1401) to a downwardly inclined direction.

8. The water tank for leak testing according to claim 6, wherein The rotating shaft (17) is sleeved with a second sealing ring (24), and the outer side edge of the second sealing ring (24) abuts against the hole wall of the mounting through hole.

9. The water tank for leak testing according to claim 8, wherein The second sealing ring (24) comprises a sealing inner ring (2402) and a sealing outer ring (2401) arranged outside the sealing inner ring (2402), an active gap is left between the sealing inner ring (2402) and the sealing outer ring (2401), and the outer side edge of the sealing outer ring (2401) abuts against the hole wall of the mounting through hole.

10. The water tank for leak testing according to claim 1, wherein The box cover (3) is further provided with a pressure sensor (12); The pressure sensor (12) is used for detecting the air pressure in the box body (2).

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