Air tightness inspection device for straight-through valve products

Abstract

The utility model relates to the technical field of valve detection, and provides a straight-through valve product airtightness inspection device which comprises a support, a water tank, a lifting mechanism and a product clamping mechanism. The water tank is arranged below the bracket; the lifting mechanism is arranged on the bracket and extends into the water tank; the lifting mechanism comprises a lifting air cylinder, a connecting frame and a base. The lifting air cylinder is arranged on the support, a telescopic rod of the lifting air cylinder is arranged downwards, and the telescopic rod of the lifting air cylinder is connected with the base through a connecting frame. The product clamping mechanism comprises a clamping air cylinder, a first pressing plate and a second pressing plate. The clamping air cylinder and the second pressing plate are fixedly arranged on the base. A telescopic rod of the clamping air cylinder is connected with the first pressing plate. The first pressing plate and the second pressing plate are oppositely arranged and used for clamping straight-through valve products. According to the utility model, the automation degree of air tightness inspection and the stability in the inspection process can be improved, and the test efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of valve detection, in particular to an airtightness inspection device for straight-through valve products. Background Art

[0002] Before leaving the factory, straight-through valve products need to be subjected to airtightness inspection. During the airtightness inspection, a separate water tank needs to be prepared. Then, air is introduced into the straight-through valve products, and the products are placed in the water tank to observe whether bubbles are generated in the water tank. If bubbles are generated, it indicates that the airtightness of the products is unqualified.

[0003] However, at present, the airtightness inspection of straight-through valve products is mainly manually operated and implemented by humans. The testing process mainly relies on personnel experience, and the testing efficiency is relatively low. Content of the Utility Model

[0004] The utility model mainly solves the technical problems that the airtightness inspection of current straight-through valve products is mainly manually operated and implemented by humans, the testing process mainly relies on personnel experience, and the testing efficiency is relatively low, etc. Aiming at this, the utility model proposes an airtightness inspection device for straight-through valve products to improve the automation degree of airtightness inspection and the stability during the inspection process, and improve the testing efficiency.

[0005] The utility model provides an airtightness inspection device for straight-through valve products, including: a bracket, a water tank, a lifting mechanism, and a product clamping mechanism;

[0006] The water tank is arranged below the bracket;

[0007] The lifting mechanism is arranged on the bracket and extends into the water tank;

[0008] The lifting mechanism includes: a lifting cylinder, a connecting frame, and a base; the lifting cylinder is arranged on the bracket, the telescopic rod of the lifting cylinder is arranged downward, and the telescopic rod of the lifting cylinder is connected with the base through the connecting frame;

[0009] The product clamping mechanism includes: a clamping cylinder, a first pressing plate, and a second pressing plate; the clamping cylinder and the second pressing plate are respectively fixedly arranged on the base;

[0010] The telescopic rod of the clamping cylinder is connected with the first pressing plate; the first pressing plate is arranged opposite to the second pressing plate for clamping straight-through valve products;

[0011] The first pressing plate is provided with air holes and air channels.

[0012] Preferably, the lifting mechanism further includes: a slide bar;

[0013] One end of the slide bar is fixed on the base, and the other end is movably arranged in the bracket.

[0014] Preferably, a linear bearing is provided on the bracket;

[0015] The sliding rod passes through the linear bearing.

[0016] Preferably, a first sealing seat is provided on the first pressing plate, and a second sealing seat is provided on the second pressing plate.

[0017] An airtightness inspection device for straight-through valve products provided by the present utility model clamps the straight-through valve products through a product clamping mechanism, presses the straight-through valve products into water through a lifting mechanism, ventilates the straight-through valve products through the air passage of the first pressing plate, and observes whether there are bubbles generated in the straight-through valve products; if there are no bubbles generated, it indicates that the airtightness of the straight-through valve products is qualified. The device of the present utility model facilitates the operator to judge whether the airtightness of the product is qualified. The structure of the present utility model is simple and the operation is convenient. Only need to place the straight-through valve products on the product clamping mechanism, and then automatically clamp, enter the water and ventilate. Through the present utility model, the airtightness inspection of the straight-through valve products can be realized by one device. The test process has little dependence on the experience of personnel, improves the automation degree of the airtightness inspection and the stability of the inspection process, improves the test efficiency, and reduces the labor intensity of the operator. For products of different models and structures, the pressing plates and sealing seats can be replaced to adapt to various models and structures of products. The present utility model has a wide range of applications. Description of the Drawings

[0018] Figure 1 is the structural schematic diagram of the airtightness inspection device for straight-through valve products provided by the present utility model Figure 1 ;

[0019] Figure 2 is the structural schematic diagram of the airtightness inspection device for straight-through valve products provided by the present utility model Figure 2 (The water tank is hidden).

[0020] Reference numerals: 1, bracket; 2, lifting cylinder; 3, connecting frame; 4, clamping cylinder; 5, base; 6, first pressing plate; 7, first sealing seat; 8, straight-through valve product; 9, second sealing seat; 10, second pressing plate; 11, water tank; 12, sliding rod; 13, linear bearing. Detailed Embodiments

[0021] In order to make the technical problems solved by the present utility model, the technical solutions adopted and the achieved technical effects clearer, the present utility model will be further described in detail below with reference to the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present utility model, rather than limiting the present utility model. In addition, it should be noted that, for the sake of convenience of description, only some parts related to the present utility model are shown in the drawings instead of all the contents.

[0022] AsFigure 1-2 As shown in the figure, an airtightness inspection device for a straight-through valve product provided by an embodiment of the present utility model includes: a bracket 1, a water tank 11, a lifting mechanism, and a product clamping mechanism.

[0023] The water tank 11 is arranged below the bracket 1; the water tank 11 is filled with water.

[0024] The lifting mechanism is arranged on the bracket 1 and extends into the water tank 11; the lifting mechanism can be lifted and lowered, and drives the product clamping mechanism to extend into the water tank 11, so that the straight-through valve product 8 clamped by the product clamping mechanism is submerged in water.

[0025] The lifting mechanism includes: a lifting cylinder 2, a connecting frame 3, and a base 5; the lifting cylinder 2 is arranged on the bracket 1, the telescopic rod of the lifting cylinder 2 is arranged downward, and the telescopic rod of the lifting cylinder 2 is connected to the base 5 through the connecting frame 3; the telescopic movement of the telescopic rod of the lifting cylinder 2 can drive the base 5 and the product clamping mechanism on the base 5 to be lifted and lowered.

[0026] The lifting mechanism further includes: a slide bar 12; one end of the slide bar 12 is fixed on the base 5, and the other end is movably arranged in the bracket 1. A linear bearing 13 is arranged on the bracket 1; the slide bar 12 passes through the linear bearing 13. The slide bar 12 can guide during the lifting of the base 5.

[0027] The product clamping mechanism includes: a clamping cylinder 4, a first pressing plate 6, and a second pressing plate 10; the clamping cylinder 4 and the second pressing plate 10 are respectively fixedly arranged on the base 5; the telescopic rod of the clamping cylinder 4 is connected to the first pressing plate 6; the first pressing plate 6 and the second pressing plate 10 are arranged opposite to each other to clamp the straight-through valve product 8; wherein, a first sealing seat 7 is arranged on the first pressing plate 6, and a second sealing seat 9 is arranged on the second pressing plate 10 to ensure the airtightness during the test. The telescopic movement of the telescopic rod of the clamping cylinder 4 can drive the first pressing plate 6 and the first sealing seat 7 on the first pressing plate 6 to move towards the second pressing plate 10 to clamp the straight-through valve product 8.

[0028] There are air holes and air channels left on the first pressing plate 6, and the air holes are connected to an air source through pipelines, and the air source supplies air during the test. The first sealing seat 7 correspondingly has air holes for the gas to pass through.

[0029] Working process of the utility model: The straight-through valve product 8 is placed on the second pressing plate 10 and the second sealing seat 9. The extension of the telescopic rod of the clamping cylinder 4 drives the first pressing plate 6 and the first sealing seat 7 to move towards the second pressing plate 10, so that the second sealing seat 9 is docked with the straight-through valve product 8 and the straight-through valve product 8 is clamped. After clamping the straight-through valve product 8, the telescopic rod of the lifting cylinder 2 extends downward, driving the base 5 and the product clamping mechanism on the base 5 to move downward, so that the straight-through valve product 8 is submerged in water. Air is introduced into the straight-through valve product 8 through the air source and the air duct of the first pressing plate 6, and it is observed whether there are bubbles generated in the straight-through valve product 8; if there are no bubbles generated, it indicates that the air tightness of the straight-through valve product 8 is qualified.

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model and are not intended to limit them; although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: modifying the technical solutions recorded in the foregoing embodiments, or equivalently replacing some or all of the technical features therein, does not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present utility model.

Claims

1. A device for checking air tightness of straight-through valve products, characterized in that: include: A bracket (1), a water tank (11), a lifting mechanism and a product clamping mechanism; The water tank (11) is arranged below the bracket (1); The lifting mechanism is arranged on the bracket (1) and extends into the water tank (11); The lifting mechanism comprises: a lifting cylinder (2), a connecting frame (3), and a base (5); the lifting cylinder (2) is arranged on the bracket (1), the telescopic rod of the lifting cylinder (2) is arranged downward, and the telescopic rod of the lifting cylinder (2) is connected to the base (5) through the connecting frame (3); The product clamping mechanism comprises: a clamping cylinder (4), a first pressing plate (6), and a second pressing plate (10); the clamping cylinder (4) and the second pressing plate (10) are respectively fixedly arranged on a base (5); The telescopic rod of the clamping cylinder (4) is connected to the first pressing plate (6); the first pressing plate (6) and the second pressing plate (10) are arranged opposite to each other and are used to clamp the through valve product (8); The first pressing plate (6) is provided with air holes and air passages.

2. The air tightness inspection device for straight-through valve products according to claim 1 is characterized in that: The lifting mechanism further comprises: a sliding rod (12); One end of the sliding rod (12) is fixed on the base (5), and the other end is movably arranged in the bracket (1).

3. The air tightness inspection device for straight-through valve products according to claim 2 is characterized in that: A linear bearing (13) is arranged on the bracket (1); The slide bar (12) passes through a linear bearing (13).

4. The air tightness inspection device for straight-through valve products according to claim 1 or 3, characterized in that: A first sealing seat (7) is arranged on the first pressing plate (6), and a second sealing seat (9) is arranged on the second pressing plate (10).

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