Valve sealing performance detection device

Abstract

The utility model discloses a valve sealing performance detection device, and relates to the technical field of valve detection. The device comprises a transparent water bucket and a valve rotating part, a water bucket cover detachably covers an opening in the upper end of the transparent water bucket, an airflow meter is arranged in an exhaust pipe fixedly arranged at the upper end of the water bucket cover, the lower end of the transparent water bucket is fixedly communicated with an air outlet pipe, and one end of an air inlet pipe on the side wall of the upper end of the transparent water bucket is fixedly connected with an air inlet hose. The valve rotating part is arranged on the side face of the transparent bucket. According to the utility model, the lower end of the valve to be detected is communicated with the air outlet pipe, the air inlet hose in the transparent bucket is communicated with the upper end of the valve, water is poured into the transparent bucket, high-pressure air is introduced into the air inlet hose, and bubbles on the surface of the valve are observed, so that the accurate position of air leakage of the valve is judged; when the valve leaks air and bubbles are generated, air in the bubbles is exhausted from the exhaust pipe and drives the airflow meter to rotate, and therefore the air leakage amount of the valve can be visually known.

Description

A valve sealing performance testing device Technical Field

[0001] This utility model belongs to the field of valve testing technology, and in particular relates to a valve sealing performance testing device. Background Technology

[0002] After valves are manufactured and assembled, their sealing performance needs to be tested. The traditional testing method is to connect both sides of the valve and pass water through them to observe whether there is liquid seepage on the outside of the valve. This method cannot accurately determine the location of the leak, thus making it impossible to make targeted suggestions for improvement and adjustment in the production and assembly process. In addition, this valve testing method cannot visually observe the amount of water leakage, nor can it effectively compare the amount of air leakage of improved valves, thus making it impossible to effectively compare and analyze changes in the valve's airtightness.

[0003] To address this issue, we provide a valve sealing performance testing device to solve the problems mentioned above. Summary of the Invention

[0004] The purpose of this invention is to provide a valve sealing test device. A vent pipe is connected to the bottom of a transparent bucket. The valve to be tested is placed in the transparent bucket, with the lower end of the valve connected to the vent pipe. An inlet hose inside the transparent bucket is connected to the upper end of the valve. Water is poured into the transparent bucket, and high-pressure gas is introduced into the inlet hose. The valve is opened and closed, and bubbles appearing on the valve surface are observed to determine the precise location of the valve leak. A bucket lid is placed on top of the transparent bucket, and an airflow meter is installed in the vent pipe at the top of the lid. When the valve leaks and bubbles are generated, the bubbles are discharged from the vent pipe and drive the airflow meter to rotate. The airflow speed is read from the airflow meter, thus providing a direct understanding of the amount of valve leakage.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model is a valve sealing performance testing device, including a transparent water bucket and a valve rotating component. The upper opening of the transparent water bucket is detachably covered with a bucket lid, and an exhaust pipe is fixedly installed on the upper end of the bucket lid. An air flow meter is installed inside the exhaust pipe. The lower end of the transparent water bucket is fixedly connected to an air outlet pipe, and the upper side wall inside the transparent water bucket is connected to an air inlet pipe. One end of the air inlet pipe extending into the transparent water bucket is fixedly connected to an air inlet hose. The valve rotating component is located on the side of the transparent water bucket.

[0007] A further feature of this invention is that the bucket lid is a funnel shape that gradually tapers upwards, and the exhaust pipe is fixed on the top of the funnel of the bucket lid.

[0008] A further feature of this invention is that a bucket support is fixedly installed at the lower end of the transparent bucket.

[0009] A further feature of this invention is that the valve rotating component includes an outer sleeve, a valve rotating ring, and a telescopic rod. The outer sleeve is fixedly fitted onto the outer side of the middle end of the transparent water bucket. A telescopic adjusting cylinder is fixedly provided on the outer wall of the outer sleeve. The end of the telescopic adjusting cylinder away from the outer sleeve is closed. The cylinder axis of the telescopic adjusting cylinder is perpendicular to the wall of the transparent water bucket. The valve rotating ring is fitted inside the telescopic adjusting cylinder. A set of valve rotating rods is circumferentially arranged and fixed on the end of the valve rotating ring near the transparent water bucket. One end of the telescopic rod passes through the closed end of the telescopic adjusting cylinder and is connected to the valve rotating ring in a transmission manner.

[0010] A further feature of this invention is that the closed end face of the telescopic adjusting cylinder is provided with an inner cylinder through-hole, a telescopic inner cylinder is provided inside the telescopic adjusting cylinder, the open end of the telescopic inner cylinder is fixedly connected to the inner cylinder through-hole, the end of the telescopic inner cylinder away from the inner cylinder through-hole is closed, an inner cylinder piston is fixedly provided at one end of the telescopic rod, the inner cylinder piston is slidably sleeved inside the telescopic inner cylinder, a valve rotating ring is sleeved on the outside of the telescopic inner cylinder, and the inner cylinder piston and the valve rotating ring are connected in a transmission manner.

[0011] A further feature of this invention is that a set of magnets is fixedly installed in a circumferential array on the outer sidewall of the inner cylinder piston, and another set of magnets is fixedly installed in a circumferential array on the inner sidewall of the valve rotating ring, with the magnets on the outer sidewall of the inner cylinder piston and the magnets on the inner sidewall of the valve rotating ring being magnetically coupled.

[0012] A further feature of this invention is that a rotating disc is fixedly provided at the end of the telescopic rod away from the inner cylinder piston.

[0013] This utility model has the following beneficial effects:

[0014] 1. This utility model involves connecting an air outlet pipe to the bottom of a transparent water bucket, placing the valve to be tested into the transparent water bucket, connecting the lower end of the valve to the air outlet pipe, connecting the air inlet hose inside the transparent water bucket to the upper end of the valve, pouring water into the transparent water bucket, introducing high-pressure gas into the air inlet hose, opening and closing the valve, and observing the bubbles appearing on the valve surface to determine the exact location of the valve leak.

[0015] 2. This utility model involves covering the top of a transparent bucket with a bucket lid and installing an airflow meter inside the vent pipe at the top of the bucket lid. When the valve leaks air and produces bubbles, the bubbles are discharged from the vent pipe and drive the airflow meter to rotate. The airflow speed can be read from the airflow meter, thus providing a direct understanding of the amount of air leakage from the valve. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 is a schematic diagram of a valve sealing performance testing device.

[0018] Figure 2 is a side sectional view of the bucket lid.

[0019] Figure 3 is an exploded view of the outer clamp and the valve rotating ring.

[0020] Figure 4 is an exploded view of the outer hoop and the telescopic inner cylinder.

[0021] Figure 5 is a side sectional view of the valve rotating component.

[0022] The attached diagram lists the components represented by each number as follows:

[0023] 1-Transparent water bucket, 101-Water bucket lid, 101a-Exhaust pipe, 101b-Air flow meter, 102-Air outlet pipe, 103-Air inlet pipe, 103a-Air inlet hose, 104-Bucket support, 2-Valve rotating component, 201-Outer sleeve, 201a-Telescopic adjusting cylinder, 201a-1-Inner cylinder through-hole, 201b-Telescopic inner cylinder, 202-Valve rotating ring, 202a-Valve rotating rod, 203-Telescopic rod, 203a-Inner cylinder piston, 203b-Screwing disc. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0025] Example 1

[0026] Please refer to Figures 1 and 2. This utility model is a valve sealing test device, including a transparent water bucket 1 and a valve rotating component 2. By connecting an air outlet pipe 102 to the bottom of the transparent water bucket 1, the valve to be tested is placed in the transparent water bucket 1, and the lower end of the valve is connected to the air outlet pipe 102. The air inlet hose 103a inside the transparent water bucket 1 is connected to the upper end of the valve. Water is poured into the transparent water bucket 1, and high-pressure gas is introduced into the air inlet hose 103a. The valve is opened and closed, and the bubbles appearing on the valve surface are observed to determine the accurate location of the valve leakage. By covering the upper end of the transparent water bucket 1 with a bucket lid 101, and installing an air flow meter 101b in the exhaust pipe 101a at the upper end of the bucket lid 101, when the valve leaks and produces bubbles, the bubbles are discharged from the exhaust pipe 101a and drive the air flow meter 101b to rotate. The air flow rate is read through the air flow meter 101b, thus intuitively understanding the amount of valve leakage.

[0027] Specifically, the upper opening of the transparent water bucket 1 is detachably covered with a bucket lid 101. An exhaust pipe 101a is fixedly installed at the upper end of the bucket lid 101. An air flow meter 101b is installed inside the exhaust pipe 101a. An air outlet pipe 102 is fixedly connected to the lower end of the transparent water bucket 1. An air inlet pipe 103 is connected to the upper side wall inside the transparent water bucket 1. An air inlet hose 103a is fixedly connected to one end of the air inlet pipe 103 extending into the interior of the transparent water bucket 1. A valve rotating component 2 is located on the side of the transparent water bucket 1.

[0028] Furthermore, the bucket lid 101 is a funnel shape that gradually tapers upwards, and the exhaust pipe 101a is fixed on the funnel top of the bucket lid 101. When the valve generates bubbles during the detection process, the air in the bubbles is gathered and guided by the funnel-shaped bucket lid 101 and then discharged from the exhaust pipe 101a.

[0029] Furthermore, a bucket bracket 104 is fixedly installed at the lower end of the transparent bucket 1.

[0030] The operation process in this embodiment is as follows:

[0031] Place the valve to be tested into the transparent water bucket 1, connect the lower end of the valve to the air outlet pipe 102, connect the air inlet hose 103a inside the transparent water bucket 1 to the upper end of the valve, pour water into the transparent water bucket 1, introduce high-pressure gas into the air inlet hose 103a, open and close the valve, observe the bubbles that appear on the valve surface, and thus determine the exact location of the valve leakage; the air in the bubbles is gathered and guided by the trumpet-shaped water bucket lid 101 and discharged from the exhaust pipe 101a, driving the airflow meter 101b to rotate, and read the airflow speed through the airflow meter 101b, thus intuitively understanding the amount of air leakage of the valve.

[0032] Example 2

[0033] Please refer to Figures 1 to 5. Based on Embodiment 1, the valve rotating component 2 includes an outer clamp 201, a valve rotating ring 202, and a telescopic rod 203. By controlling the telescopic rod 203 to drive the valve rotating ring 202 to rotate, the valve rotating rod 202a on one side of the valve rotating ring 202 controls the opening and closing of the valve inside the transparent water bucket 1.

[0034] Specifically, the outer sleeve 201 is fixedly fitted onto the outer side of the middle end of the transparent water bucket 1. A telescopic adjustment cylinder 201a is fixedly provided on the outer wall of the outer sleeve 201. The end of the telescopic adjustment cylinder 201a away from the outer sleeve 201 is closed. The cylinder axis of the telescopic adjustment cylinder 201a is perpendicular to the wall of the transparent water bucket 1. The valve rotating ring 202 is fitted inside the telescopic adjustment cylinder 201a. A set of valve rotating rods 202a is circumferentially arranged and fixed at the end of the valve rotating ring 202 near the transparent water bucket 1. One end of the telescopic rod 203 passes through the closed end of the telescopic adjustment cylinder 201a and is connected to the valve rotating ring 202 in a transmission connection.

[0035] Furthermore, the closed end face of the telescopic adjusting cylinder 201a is provided with an inner cylinder through-hole 201a-1, and a telescopic inner cylinder 201b is provided inside the telescopic adjusting cylinder 201a. The open end of the telescopic inner cylinder 201b is fixedly connected to the inner cylinder through-hole 201a-1. The end of the telescopic inner cylinder 201b away from the inner cylinder through-hole 201a-1 is closed. An inner cylinder piston 203a is fixedly provided at one end of the telescopic rod 203. The inner cylinder piston 203a is slidably sleeved inside the telescopic inner cylinder 201b. The valve rotating ring 202 is sleeved on the outside of the telescopic inner cylinder 201b. The inner cylinder piston 203a and the valve rotating ring 202 are connected in a transmission manner.

[0036] Furthermore, a set of magnets is fixedly installed in a circumferential array on the outer sidewall of the inner cylinder piston 203a, and another set of magnets is fixedly installed in a circumferential array on the inner sidewall of the valve rotating ring 202. The magnets on the outer sidewall of the inner cylinder piston 203a are magnetically coupled with the magnets on the inner sidewall of the valve rotating ring 202. Pushing the telescopic rod 203 causes the inner cylinder piston 203a to drive the valve rotating ring 202 forward, so that a set of valve rotating rods 202a at one end of the valve rotating ring 202 is inserted into the valve's turning handle. Rotating the telescopic rod 203 causes the inner cylinder piston 203a to drive the valve rotating ring 202 to rotate, thereby causing the valve rotating rods 202a to drive the valve's turning switch to rotate, thus controlling the valve's opening and closing, while preventing water in the transparent water bucket 1 from flowing out from the connection between the valve rotating component 2 and the transparent water bucket 1.

[0037] Furthermore, a rotating disc 203b is fixed at the end of the telescopic rod 203 away from the inner cylinder piston 203a to facilitate the rotation of the telescopic rod 203.

[0038] The operation process in this embodiment is as follows:

[0039] Pushing the telescopic rod 203 forward causes the inner cylinder piston 203a to drive the valve rotating ring 202 forward, so that a set of valve rotating rods 202a at one end of the valve rotating ring 202 is inserted into the valve's turning handle. Rotating the telescopic rod 203 causes the inner cylinder piston 203a to drive the valve rotating ring 202 to rotate, thereby causing the valve rotating rods 202a to drive the valve's turning switch to rotate, thus controlling the valve's opening and closing, while preventing water in the transparent water bucket 1 from flowing out from the connection between the valve rotating part 2 and the transparent water bucket 1.

[0040] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

Claims

1. A valve sealing performance testing device, comprising a transparent water tank (1) and a valve rotating component (2), characterized in that: The upper opening of the transparent water bucket (1) is detachably covered with a bucket lid (101). An exhaust pipe (101a) is fixedly installed at the upper end of the bucket lid (101). An air flow meter (101b) is installed inside the exhaust pipe (101a). An air outlet pipe (102) is fixedly connected to the lower end of the transparent water bucket (1). An air inlet pipe (103) is connected to the upper side wall inside the transparent water bucket (1). An air inlet hose (103a) is fixedly connected to one end of the air inlet pipe (103) extending into the transparent water bucket (1). The valve rotating component (2) is located on the side of the transparent water bucket (1).

2. The valve tightness detection device according to claim 1, characterized in that: The bucket lid (101) is a funnel shape that gradually tapers upwards, and the exhaust pipe (101a) is fixed on the top of the funnel of the bucket lid (101).

3. The valve sealing performance testing device according to claim 2, characterized in that: A bucket bracket (104) is fixedly installed at the lower end of the transparent bucket (1).

4. The valve sealing performance testing device according to claim 1, characterized in that: The valve rotating component (2) includes an outer hoop (201), a valve rotating ring (202), and a telescopic rod (203). The outer hoop (201) is fixedly sleeved on the outer side of the middle end of the transparent water bucket (1). A telescopic adjusting cylinder (201a) is fixedly provided on the outer wall of the outer hoop (201). The end of the telescopic adjusting cylinder (201a) away from the outer hoop (201) is closed. The cylinder axis of the telescopic adjusting cylinder (201a) is perpendicular to the wall of the transparent water bucket (1). The valve rotating ring (202) is sleeved inside the telescopic adjusting cylinder (201a). A set of valve rotating rods (202a) is fixedly arranged in a circumferential array at the end of the valve rotating ring (202) near the transparent water bucket (1). One end of the telescopic rod (203) passes through the closed end of the telescopic adjusting cylinder (201a) and is connected to the valve rotating ring (202) in a transmission connection.

5. The valve tightness detection device according to claim 4, characterized in that: The telescopic adjusting cylinder (201a) has an inner cylinder through-hole (201a-1) through its closed end face. A telescopic inner cylinder (201b) is provided inside the telescopic adjusting cylinder (201a). The open end of the telescopic inner cylinder (201b) is fixedly connected to the inner cylinder through-hole (201a-1). The end of the telescopic inner cylinder (201b) away from the inner cylinder through-hole (201a-1) is closed. An inner cylinder piston (203a) is fixedly provided at one end of the telescopic rod (203). The inner cylinder piston (203a) is slidably sleeved inside the telescopic inner cylinder (201b). The valve rotating ring (202) is sleeved on the outside of the telescopic inner cylinder (201b). The inner cylinder piston (203a) is connected to the valve rotating ring (202) in a transmission connection.

6. The valve tightness detection device according to claim 5, characterized in that: A set of magnets is fixedly installed in a circumferential array on the outer sidewall of the inner cylinder piston (203a), and another set of magnets is fixedly installed in a circumferential array on the inner sidewall of the valve rotating ring (202). The magnets on the outer sidewall of the inner cylinder piston (203a) are magnetically coupled with the magnets on the inner sidewall of the valve rotating ring (202).

7. A valve sealing performance testing device according to claim 6, characterized in that: A rotating disc (203b) is fixed at the end of the telescopic rod (203) away from the inner cylinder piston (203a).

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