Valve body sealing performance detection device

Abstract

The utility model discloses a sealing performance detection device for a valve body, and relates to the technical field of valve body production. Comprising a detection bottom plate, the top side of the outer edge of the detection bottom plate is slidably connected with a pressing top plate, the opposite sides of the pressing top plate and the detection bottom plate are each fixedly connected with a placement seat, and the opposite sides of the two placement seats are each provided with a ventilation side ring. And a layer of positioning air bag is arranged between the opposite sides of the two corresponding ventilation side rings. The positioning air bag is tightly attached to the side, needing to be sealed, of the valve body, the positioning air bag is inflated at the same time through the two ventilation side rings arranged on the inner side and the outer side of the positioning air bag, the part, making contact with the valve body, of the positioning air bag cannot expand during inflation due to extrusion of the lifting air cylinder, and the part, making contact with the valve body, of the positioning air bag is inflated and swelled around the edge of the valve body; therefore, the device is in close contact with the contour of the edge of the valve body, thereby achieving a better sealing effect on the edge of the valve body, and improving the detection accuracy.

Description

Technical Field

[0001] This utility model relates to the field of valve body manufacturing technology, specifically to a valve body sealing performance testing device. Background Technology

[0002] After the valve body is manufactured, its sealing performance needs to be tested. The existing testing method involves introducing water or gas into the valve body and then using a pressure sensor to check whether the pressure inside the cavity remains constant at a specified value. If it does, the sealing performance is good; otherwise, it is considered unqualified. An existing sealing test device (announcement number: CN216247071U) used in faucet valve body production has revealed at least the following defects during use:

[0003] In the above solution, the faucet is easily fixed by using a fixed plate, a slot, a protective pad, a moving plate, and a guide rod. The faucet is placed inside the slot, and the hydraulic rod extends to push the moving plate to fix the faucet inside the slot, which is convenient for installation and fixation. The valve body is sealed by the setting of the sealing gasket. However, in actual use, the valve body has different shapes and edges, and the monotonous sealing ring is difficult to ensure the sealing performance of both ends of the valve body during the testing process. Therefore, a valve body sealing performance testing device is developed. Utility Model Content

[0004] The main purpose of this utility model is to provide a valve body sealing detection device, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A valve body sealing performance testing device includes a testing base plate. Multiple evenly distributed lifting slide rods are fixedly connected to the top outer edge of the testing base plate. A pressing top plate is slidably connected to the outer edges of all the lifting slide rods. A placement seat is fixedly connected to the opposite sides of the pressing top plate and the testing base plate. A ventilation side ring is provided on the opposite inner and outer edges of the two placement seats. A positioning airbag is provided between the opposite sides of the two corresponding ventilation side rings. A venting pipe is provided inside each ventilation side ring, and one end of each venting pipe passes through the corresponding placement seat and extends to the outside of the corresponding placement seat.

[0007] Preferably, two ventilation frames are provided on opposite sides of the two placement seats. Each ventilation frame has multiple evenly distributed air vents on its surface. A set of evenly distributed support rods is fixedly connected to the side of each ventilation frame facing away from the corresponding placement seat. A top side pressure ring is fixedly connected to the end of each set of support rods facing away from the corresponding ventilation frame.

[0008] Preferably, each set of support rods corresponds to a ventilation side ring, and each set of support rods extends through to the outside of the corresponding ventilation side ring. The side of each ventilation side ring facing away from the corresponding placement seat is in close contact with the surface of the corresponding top pressure ring.

[0009] Preferably, one end of each of the two air distribution pipes corresponding to the same placement seat is fixedly connected to a positioning frame, one end of each of the two positioning frames is fixedly connected to an air supply pipe, one end of each of the two air supply pipes is fixedly connected to a summing frame, and one side of the summing frame is fixedly connected to a positioning air pipe.

[0010] Preferably, the top ends of all the lifting slides are fixedly connected to a detection top cover, the top end of the detection top cover is fixedly connected to a lifting cylinder, the output end of the lifting cylinder is fixedly connected to the top side of the pressing top plate, and a ventilation slot is opened on the surface of the pressing top plate, the ventilation slot is adapted to the corresponding air distribution pipe.

[0011] Preferably, the bottom side of the detection base plate is fixedly connected with a plurality of evenly distributed support feet, and a detection through hole is opened on the surface of the detection base plate. The detection through hole is connected to the side of the corresponding placement seat facing away from the detection base plate. A sealing detection tube is fixedly connected between the inner walls of the detection through hole, and a detection flexible tube is fixedly connected to the bottom end of the sealing detection tube.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] By positioning the airbag so that it fits tightly against the side of the valve body that needs to be sealed, and by using two ventilation rings on the inner and outer sides of the airbag to simultaneously inflate it, the part of the airbag that contacts the valve body cannot expand during inflation due to the compression of the lifting cylinder. Instead, it inflates around the edge of the valve body, thus making close contact with the edge contour of the valve body and producing a better sealing effect, thereby improving the accuracy of the detection. Attached Figure Description

[0014] Figure 1 This is an isometric view of the present invention;

[0015] Figure 2 This is a schematic diagram of the sealing connection device of this utility model;

[0016] Figure 3 This is a schematic diagram of the pressing device structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the base structure of this utility model.

[0018] In the diagram: 101, Placement seat; 102, Ventilation frame; 103, Support rod; 104, Top side pressure ring; 105, Ventilation side ring; 106, Summary frame; 107, Positioning air pipe; 108, Air supply pipe; 109, Positioning airbag; 110, Positioning frame; 111, Air distribution pipe; 201, Lifting cylinder; 202, Lifting slide bar; 203, Pressing top plate; 204, Ventilation slot; 205, Detection top cover; 301, Detection base plate; 302, Detection through hole; 303, Support foot; 304, Sealing detection tube; 305, Detection hose. Detailed Implementation

[0019] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0020] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] Please see Figures 1-4 This utility model provides a technical solution:

[0023] A valve body sealing performance testing device includes a testing base plate 301. Multiple evenly distributed lifting slide rods 202 are fixedly connected to the top side of the outer edge of the testing base plate 301. A pressing top plate 203 is slidably connected to the outer edge of all the lifting slide rods 202. A placement seat 101 is fixedly connected to the opposite side of the pressing top plate 203 and the testing base plate 301. A ventilation side ring 105 is provided on the opposite side of the inner and outer edges of the two placement seats 101. A positioning airbag 109 is provided between the opposite sides of the two corresponding ventilation side rings 105. A venting pipe 111 is provided inside each ventilation side ring 105. One end of each venting pipe 111 passes through the corresponding placement seat 101 and extends to the outside of the corresponding placement seat 101. Two branch air pipes 111 corresponding to the same placement seat 101 are fixedly connected at one end to a positioning frame 110. One end of each positioning frame 110 is fixedly connected to an air supply pipe 108. One end of each air supply pipe 108 is fixedly connected to a collection frame 106. A positioning air pipe 107 is fixedly connected to one side of the collection frame 106. In this embodiment, the air supply pipe 108 is a relatively long flexible tube to accommodate the movement of the vertically movable pressing top plate 203. One end of the positioning air pipe 107 is connected to a positioning air pump, which injects air into the positioning airbag 109, blowing air into the positioning airbag 109 to seal the valve body.

[0024] Two ventilation frames 102 are respectively provided on opposite sides of the two placement seats 101. Each ventilation frame 102 has multiple evenly distributed air vents on its surface. A set of evenly distributed support rods 103 are fixedly connected to the side of each ventilation frame 102 facing away from the corresponding placement seat 101. A top-side pressure ring 104 is fixedly connected to the end of each set of support rods 103 facing away from the corresponding ventilation frame 102. Each set of support rods 103 corresponds to a ventilation side ring 105, and each set of support rods 103 extends through to the outside of the corresponding ventilation side ring 105. The side of each ventilation side ring 105 facing away from the corresponding placement seat 101 is in close contact with the surface of the corresponding top-side pressure ring 104. The ventilation frames 102 support the ventilation side rings 105, allowing air flowing into the ventilation side rings 105 to flow into the positioning airbag 109 through the air vents.

[0025] All the lifting slides 202 are fixedly connected to a detection top cover 205. A lifting cylinder 201 is fixedly connected to the top of the detection top cover 205. The output end of the lifting cylinder 201 is fixedly connected to the top side of the pressing top plate 203. A ventilation slot 204 is opened on the surface of the pressing top plate 203, and the ventilation slot 204 is adapted to the corresponding air distribution pipe 111. Multiple evenly distributed support feet 303 are fixedly connected to the bottom side of the detection base plate 301. A detection through hole 302 is opened on the surface of the detection base plate 301. The detection through hole 302 is connected to the side of the corresponding placement seat 101 facing away from the detection base plate 301. A sealing detection tube 304 is fixedly connected between the inner walls of the detection through hole 302. A detection hose 305 is fixedly connected to the bottom end of the sealing detection tube 304. In this embodiment, the operation of the lifting cylinder 201 drives the pressing top plate 203 to rise and fall, clamping the valve body between the pressing top plate 203 and the detection bottom plate 301. Air is then injected into the valve body through the detection hose 305 to perform a sealing test.

[0026] It should be noted that, as a valve body sealing detection device, this utility model, in use, uses a positioning airbag 109 that is tightly attached to the side of the valve body that needs to be sealed. Two ventilation rings 105, located on the inner and outer sides of the positioning airbag 109, simultaneously inflate the airbag. Because of the compression from the lifting cylinder 201, the part of the positioning airbag 109 that contacts the valve body cannot expand during inflation; instead, it inflates around the edge of the valve body, thus making close contact with the valve body's edge contour and achieving a better sealing effect, thereby improving the accuracy of the detection.

[0027] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended embodiments and their equivalents.

Claims

1. A valve body sealing performance testing device, comprising a testing base plate (301), characterized in that: Multiple evenly distributed lifting slide rods (202) are fixedly connected to the top side of the outer edge of the detection base plate (301). All the outer edges of the lifting slide rods (202) are slidably connected to a pressing top plate (203). A placement seat (101) is fixedly connected to the opposite side of the pressing top plate (203) and the detection base plate (301). A ventilation side ring (105) is provided on the opposite side of the inner and outer edges of the two placement seats (101). A positioning airbag (109) is provided between the opposite sides of the two corresponding ventilation side rings (105). A gas distribution pipe (111) is provided inside each ventilation side ring (105). One end of each gas distribution pipe (111) passes through the corresponding placement seat (101) and extends to the outside of the corresponding placement seat (101).

2. The valve body sealing performance testing device according to claim 1, characterized in that: Two ventilation racks (102) are respectively provided on opposite sides of the two placement seats (101). Each ventilation rack (102) has multiple evenly distributed ventilation openings on its surface. Each ventilation rack (102) has a set of evenly distributed support rods (103) fixedly connected to the side of its opposite side from the corresponding placement seat (101). Each set of support rods (103) has a top side pressure ring (104) fixedly connected to the end of its opposite side from the corresponding ventilation rack (102).

3. The valve body sealing performance testing device according to claim 2, characterized in that: Each set of support rods (103) corresponds to a ventilation side ring (105), and each set of support rods (103) extends through to the outside of the corresponding ventilation side ring (105). The side of each ventilation side ring (105) facing away from the corresponding placement seat (101) is in close contact with the surface of the corresponding top side pressure ring (104).

4. The valve body sealing performance testing device according to claim 1, characterized in that: One end of each of the two branch pipes (111) corresponding to the same placement seat (101) is fixedly connected to a positioning frame (110), one end of each of the two positioning frames (110) is fixedly connected to an air supply pipe (108), one end of each of the two air supply pipes (108) is fixedly connected to a summing frame (106), and one side of the summing frame (106) is fixedly connected to a positioning air pipe (107).

5. The valve body sealing performance testing device according to claim 1, characterized in that: All the lifting slides (202) are fixedly connected to a detection top cover (205) at their top ends. A lifting cylinder (201) is fixedly connected to the top end of the detection top cover (205). The output end of the lifting cylinder (201) is fixedly connected to the top side of the pressing top plate (203). A ventilation slot (204) is opened on the surface of the pressing top plate (203). The ventilation slot (204) is adapted to the corresponding air distribution pipe (111).

6. The valve body sealing performance testing device according to claim 1, characterized in that: The bottom side of the detection base plate (301) is fixedly connected with a plurality of evenly distributed support feet (303). A detection through hole (302) is opened on the surface of the detection base plate (301). The detection through hole (302) is connected to the side of the corresponding placement seat (101) facing away from the detection base plate (301). A sealing detection tube (304) is fixedly connected between the inner walls of the detection through hole (302). A detection flexible tube (305) is fixedly connected to the bottom end of the sealing detection tube (304).

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