Air tightness detection device for manual softening valve

Abstract

The utility model discloses a manual softening valve airtightness detection device, which comprises a test rack, a detection base and an inflation device, the detection base and the inflation device are mounted above the test rack, a manual softening valve to be tested is placed on the detection base, the inflation device is arranged above the detection base in a liftable manner, an air pressure sensor is arranged in the inflation device, and the detection base is connected with the inflation device. During detection, the inflation device descends to a position above a position close to the detection base, the manual softening valve is inflated, and after inflation is completed, the air pressure change is detected through the air pressure sensor, so that air tightness detection of a specific station is realized. And after pressure relief, the driving device rotates the manual softening valve to another specific station for detection, so that multi-station air tightness detection is realized. According to the air tightness detection device for the manual softening valve, the air pressure sensor is arranged in the inflating device, so that air tightness detection can be realized by detecting air pressure change through the air pressure sensor, and the detection efficiency is higher.

Description

Technical Field

[0001] The utility model relates to a detection device, and more specifically to a manual softening valve airtight detection device. Background Art

[0002] Before the valve leaves the factory, it usually needs to be subjected to an airtightness test to detect whether there are defects in the valve body and whether the seal at the valve stem is reliable. After inflating the cavity of the valve, the inlet and outlet of the valve are sealed. It is possible to observe the pressure drop to judge whether the airtightness of the valve is qualified, which is simple and fast, but it cannot quickly judge the air leakage point. It is also possible to adopt the submersion type and use the "bubble method" to intuitively judge whether the airtightness of the valve is qualified. At the same time, the air leakage point of the valve can be effectively determined through the position of the bubbles. The inflated valve can be directly placed into the water tank, and then fished out after the detection is completed.

[0003] For example, in the prior art, there is a patent for invention with the publication number CN117928841A and the name of a valve detection device and its operation method, which discloses a method of increasing the efficiency of the airtightness test by adopting a synchronous airtightness test in multiple stations. However, this method also adopts the bubble method to detect the airtightness of the valve. During the process of the bubble method test, the inflated valve needs to be directly placed into the water tank to observe whether there are bubbles on the surface of the valve to determine the airtightness effect of the valve. On the one hand, this method requires human eyes to observe, so the participation of manual labor greatly reduces the detection efficiency. On the other hand, during the process of detecting the airtightness of the internal passages of a multi-pass valve, it is necessary to repeatedly fish out the valve from the water tank, re-inflate the passages after replacement, and then put it into the water tank for detection, making the detection efficiency even lower. Summary of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the purpose of the present utility model is to provide a manual softening valve airtight detection device with higher detection efficiency.

[0005] To achieve the above purpose, the present utility model provides the following technical solution: A manual softening valve airtight detection device, including a test rack, a detection base and an inflation device installed above the test rack. The manual softening valve to be tested is placed on the detection base. The inflation device is arranged above the detection base in a liftable manner. The inflation device is internally provided with a pressure sensor. During the detection, the inflation device descends to a position close to the detection base and inflates the manual softening valve. After the inflation is completed, the airtightness detection is realized by detecting the pressure change through the pressure sensor.

[0006] As a further improvement of the present utility model, a driving device is provided on the detection base. When the manual softening valve to be tested is placed on the detection base, the driving device is linked with the operating shaft of the manual softening valve to drive the manual softening valve to connect different passages.

[0007] As a further improvement of the present utility model, an installation platform is provided above the detection base. The inflation device includes a lifting cylinder and an air inlet block. The cylinder body of the lifting cylinder is fixedly installed on the installation platform, and the push rod of the lifting cylinder penetrates downward through the installation platform. The air inlet block is fixedly installed at the lower end of the push rod of the lifting cylinder.

[0008] As a further improvement of the present utility model, the driving device includes a rotating mechanism and a plugging mechanism. The rotating mechanism and the plugging mechanism are installed on the detection base at intervals. The manual softening valve is placed between the rotating mechanism and the plugging mechanism and is clamped and positioned by the rotating mechanism and the plugging mechanism to block the interface of the manual softening valve through the plugging mechanism, and the rotating mechanism drives the valve shaft of the manual softening valve.

[0009] As a further improvement of the present utility model, the plugging mechanism includes a plugging cylinder and a cylindrical plug. The cylinder body of the plugging cylinder is fixed on the detection base, and the push rod is arranged towards the rotating mechanism. One end of the plug is coaxially fixed on the end face of the push rod, and a cylindrical groove is provided at the other end. When the plugging mechanism blocks the interface of the manual softening valve, the push rod of the plugging cylinder extends, so that the plug is sleeved on the interface of the manual softening valve.

[0010] As a further improvement of the present utility model, the rotating mechanism includes a rotating motor and a rotating shaft. The body of the rotating motor is fixed on the detection base, and the rotating shaft is directed towards the plugging mechanism. The rotating shaft includes a rotating pressing head and a connecting shaft. One end of the connecting shaft is coaxially fixed on the rotating shaft of the rotating motor, and a key groove adapted to the valve shaft of the manual softening valve is provided at the other end. One end of the rotating pressing head is fixed on the body of the rotating motor to be coaxially sleeved on the connecting shaft.

[0011] As a further improvement of the present utility model, a detection groove is provided on the side wall of the rotating pressing head, and a light sensor is arranged in the detection groove. A detection hole is provided on the side wall of the connecting shaft.

[0012] As a further improvement of the present utility model, sliding sleeves are fixed at the four corners of the detection base. Four sliding shafts are fixed on the test frame. The sliding sleeves are sleeved on the sliding shafts. A buffer spring is provided between the detection base and the test frame, and the buffer spring is sleeved on the sliding shaft.

[0013] The beneficial effects of the present utility model are as follows: through the setting of the detection base and the inflation device on the test frame, the airtightness detection of the manual softening valve can be effectively realized. Compared with the methods in the prior art, the detection process mainly realizes the detection by detecting the air pressure change through the air pressure sensor, and the detection speed is faster and the accuracy is higher than the method of detecting by the way of soaking in water and generating bubbles in the prior art. Description of the Drawings

[0014] Figure 1 It is the overall structure diagram of the airtight detection device for the manual softening valve;

[0015] Figure 2 It is Figure 1 the overall structure diagram of the detection base in

[0016] Figure 3 It is Figure 2 the overall structure diagram of the rotating mechanism in Specific implementation manners

[0017] The following will further elaborate on the present utility model in conjunction with the embodiments given in the accompanying drawings.

[0018] Referring to Figures 1 to 3 as shown, an airtight detection device for a manual softening valve in this embodiment includes a test rack 1, a detection base 2 installed above the test rack 1, and an inflation device 3. The manual softening valve to be tested is placed on the detection base 2. The inflation device 3 is disposed above the detection base 2 in a liftable manner. The inflation device 3 is internally provided with a pressure sensor. During detection, the inflation device 3 descends to a position close to but above the detection base 2 and inflates the manual softening valve. After inflation, the airtightness detection is realized by detecting the change in air pressure through the pressure sensor. During the process of using the detection device in this embodiment, only the manual softening valve needs to be placed on the detection base 2, and then the device is started. The inflation device 3 will inflate the manual softening valve on the detection base 2 and detect the air pressure of the manual softening valve through the pressure sensor after inflation. Furthermore, the airtightness of the manual softening valve is finally determined by judging the reduction of air pressure. In this way, compared with the prior art that uses the immersion method for detection, the detection efficiency is higher and the accuracy is also more accurate.

[0019] As a specific improvement in the implementation manner, a driving device 4 is provided on the detection base 2. When the manual softening valve to be tested is placed on the detection base 2, the driving device 4 is linked with the operating shaft of the manual softening valve to drive the manual softening valve to connect to different passages. Through the setting of the driving device 4, the manual softening valve can be driven to connect to different passages, and then the airtightness detection of different passages of the manual softening valve can be realized in cooperation with the inflation device 3.

[0020] As a specific improvement in the implementation manner, an installation platform 5 is provided above the detection base 2. The inflation device 3 includes a lifting cylinder 31 and an air intake block 32. The cylinder body of the lifting cylinder 31 is fixedly installed on the installation platform 5. The push rod of the lifting cylinder 31 penetrates downward through the installation platform 5. The air intake block 32 is fixedly installed at the lower end of the push rod of the lifting cylinder 31. Through the setting of the installation platform 5, the lifting cylinder 31 and the air intake block 32 can be simply and effectively installed above the detection base 2, and thus the inflation of the manual softening valve on the detection base 2 can be effectively realized.

[0021] As a specific embodiment of the improvement, the driving device 4 includes a rotating mechanism 41 and a plugging mechanism 42. The rotating mechanism 41 and the plugging mechanism 42 are installed on the detection base 2 at intervals. The manual softening valve is placed between the rotating mechanism 41 and the plugging mechanism 42 and is clamped and positioned by the rotating mechanism 41 and the plugging mechanism 42 to block the interface of the manual softening valve through the plugging mechanism 42. The rotating mechanism 41 drives the valve shaft of the manual softening valve. Through the settings of the rotating mechanism 41 and the plugging mechanism 42, the sealing of the valve body interface can be achieved by the action of the plugging mechanism 42, and then the valve shaft of the manual softening valve can be driven through the rotating mechanism 41 to connect different passages. In this way, compared with the existing technology, when detecting the air tightness of different passages, only by using the action of the rotating mechanism 41 can the different passages of the manual softening valve be connected. Furthermore, when connecting different passages, the air tightness of each passage can be detected by using the action of the inflation device 3. Therefore, compared with the existing technology, the air tightness detection of the passages is faster and more accurate.

[0022] As a specific embodiment of the improvement, the plugging mechanism 42 includes a plugging cylinder 421 and a cylindrical plug 422. The cylinder body of the plugging cylinder 421 is fixed on the detection base 2, and the push rod faces the rotating mechanism 41. One end of the plug 422 is coaxially fixed on the end face of the push rod, and the other end is provided with a cylindrical groove. When the plugging mechanism 42 blocks the interface of the manual softening valve, the push rod of the plugging cylinder 421 extends, so that the plug 422 is sleeved on the interface of the manual softening valve. Through the settings of the plugging cylinder 421 and the cylindrical plug 422, the sealing of the interface of the manual softening valve can be effectively achieved by using the pressure between the cylindrical groove and the plugging cylinder 421, and the overall structure is simple and easy to implement.

[0023] As a specific embodiment of the improvement, the rotating mechanism 41 includes a rotating motor 411 and a rotating shaft 412. The body of the rotating motor 411 is fixed on the detection base 2, and the rotating shaft faces the plugging mechanism 42. The rotating shaft 412 includes a rotating pressing head 413 and a connecting shaft 414. One end of the connecting shaft 414 is coaxially fixed on the rotating shaft of the rotating motor 411, and the other end is provided with a key groove adapted to the valve shaft of the manual softening valve. One end of the rotating pressing head 413 is fixed on the body of the rotating motor 411 and is coaxially sleeved on the connecting shaft 414. Through the above structure settings, it can be simply and effectively achieved to drive the valve shaft of the manual softening valve by driving the connecting shaft 414, and then switch different passages for air tightness testing.

[0024] As a specific implementation of the improvement, a detection groove is formed on the side wall of the rotary press head 413, and a light sensor 415 is arranged in the detection groove. A detection hole is formed on the side wall of the connecting shaft 414. Through the arrangement of the detection groove and the light sensor 415, the rotation angle of the current connecting shaft 414 can be detected, and further it can be determined whether the passage switching of the manual softening valve is in place.

[0025] As a specific implementation of the improvement, sliding sleeves 6 are fixed at the four corners of the detection base 2. Four sliding shafts 11 are fixed on the test rack 1. The sliding sleeves 6 are sleeved on the sliding shafts 11. A buffer spring is arranged between the detection base 2 and the test rack 1, and the buffer spring is sleeved on the sliding shafts 11. Through the arrangement of the above structure, the connection between the detection base 2 and the test rack 1 can be effectively made elastic, further ensuring the airtightness during the inflation process of the inflation device 3.

[0026] In summary, for the manual softening valve airtightness detection device of this embodiment, through the arrangement of the inflation device 3 and the air pressure sensor therein, the airtightness detection of the manual softening valve can be effectively realized by using the air pressure sensor to detect the air pressure change. Compared with the prior art that adopts the immersion method, the detection efficiency and accuracy are both higher.

[0027] The above are only the preferred implementation modes of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions falling within the idea of the present invention belong to the protection scope of the present invention. It should be pointed out that for those of ordinary skill in the art, several improvements and refinements made without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A manual softening valve airtight detection device, characterized in that: It includes a test rack (1), a detection base (2) and an inflation device (3) installed above the test rack (1). The manual softening valve to be tested is placed on the detection base (2). The inflation device (3) is arranged above the detection base (2) in a liftable manner. The inflation device (3) is internally provided with a pressure sensor. During detection, the inflation device (3) descends to a position close to but above the detection base (2) and inflates the manual softening valve. After inflation, the airtightness detection is realized by detecting the pressure change through the pressure sensor.

2. The manual softening valve airtight detection device according to claim 1, characterized in that: A driving device (4) is provided on the detection base (2). When the manual softening valve to be tested is placed on the detection base (2), the driving device (4) is linked with the operating shaft of the manual softening valve to drive the manual softening valve to connect different passages.

3. The manual softening valve airtight detection device according to claim 2, wherein: An installation platform (5) is provided above the detection base (2). The inflation device (3) includes a lifting cylinder (31) and an air inlet block (32). The cylinder body of the lifting cylinder (31) is fixedly installed on the installation platform (5). The push rod of the lifting cylinder (31) penetrates downward through the installation platform (5). The air inlet block (32) is fixedly installed at the lower end of the push rod of the lifting cylinder (31).

4. The airtight detection device for the manual softening valve according to claim 2 or 3, characterized in that: The driving device (4) includes a rotating mechanism (41) and a plugging mechanism (42). The rotating mechanism (41) and the plugging mechanism (42) are installed on the detection base (2) at intervals. The manual softening valve is placed between the rotating mechanism (41) and the plugging mechanism (42) and is clamped and positioned by the rotating mechanism (41) and the plugging mechanism (42) to block the interface of the manual softening valve through the plugging mechanism (42), and the rotating mechanism (41) drives the valve shaft of the manual softening valve.

5. The airtight detection device for the manual softening valve according to claim 4, wherein: The plugging mechanism (42) includes a plugging cylinder (421) and a cylindrical plug (422). The cylinder body of the plugging cylinder (421) is fixed on the detection base (2), and the push rod is arranged towards the rotating mechanism (41). One end of the plug (422) is coaxially fixed on the end face of the push rod, and the other end is provided with a cylindrical groove. When the plugging mechanism (42) blocks the interface of the manual softening valve, the push rod of the plugging cylinder (421) extends, so that the plug (422) is sleeved on the interface of the manual softening valve.

6. The airtight detection device for the manual softening valve according to claim 4, characterized in that: The rotating mechanism (41) includes a rotating motor (411) and a rotating shaft (412). The body of the rotating motor (411) is fixed on the detection base (2), and the rotating shaft faces the plugging mechanism (42). The rotating shaft (412) includes a rotating pressure head (413) and a connecting shaft (414). One end of the connecting shaft (414) is coaxially fixed on the rotating shaft of the rotating motor (411), and the other end is provided with a key groove adapted to the valve shaft of the manual softening valve. One end of the rotating pressure head (413) is fixed on the body of the rotating motor (411) and is coaxially sleeved on the connecting shaft (414).

7. The airtight detection device for the manual softening valve according to claim 6, characterized in that: A detection groove is provided on the side wall of the rotating pressure head (413), and an optical sensor (415) is arranged in the detection groove. A detection hole is provided on the side wall of the connecting shaft (414).

8. The airtight detection device for the manual softening valve according to claim 1 or 2 or 3, characterized in that: Sliding sleeves (6) are fixed at the four corners of the detection base (2). Four sliding shafts (11) are fixed on the test frame (1). The sliding sleeves (6) are sleeved on the sliding shafts (11). A buffer spring is provided between the detection base (2) and the test frame (1), and the buffer spring is sleeved on the sliding shaft (11).

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