Valve seat detection device

Abstract

The utility model discloses a valve seat detection device which comprises an equipment frame, a pump, a pressure gauge and a sealing ring. When the valve seat is detected, the valve seat is firstly placed at the placing position, then a matched valve ball is placed at the top surface opening of the valve seat, then the pump is started to exhaust air, and finally whether the valve seat is qualified or not is judged according to the reading of the pressure gauge. Due to the fact that the sealing ring enables the opening in the top face of the valve seat to serve as an air inlet, when the pump exhausts air, external air tends to enter from the air inlet of the valve seat. After the valve ball is placed, the better the matching degree of the valve seat and the valve ball is, the less air entering from the space between the valve ball and the valve seat is, and the lower the reading of the pressure gauge is. The device has the advantages of being simple in structure, convenient to operate and high in detection efficiency.

Description

Technical Field

[0001] The utility model relates to the production and processing of valve seats, in particular to a valve seat detection device. Background Art

[0002] The valve ball and valve seat are usually used together, for example, in an oil pump. The degree of fit between the valve ball and the valve seat directly affects the effect of use. Therefore, the valve ball and valve seat produced need to be tested accordingly. At present, a roundness tester is generally used to test the valve ball, and then the qualified valve ball is used to test the valve seat. Utility Model Content

[0003] The present application provides a valve seat detection device, which can solve the problems raised in the background technology.

[0004] In the present application, a valve seat detection device is provided, comprising:

[0005] The equipment frame has a placement position for placing the valve seat on the top surface, and the placement position has a through hole;

[0006] A pump is fixed to the equipment rack, and a pipeline communicating with the through hole of the equipment rack is provided;

[0007] A pressure gauge, fixed to the equipment frame and connected to the pipeline;

[0008] The sealing ring is arranged at a placement position; when the valve seat is placed at the placement position and is in communication with the through hole and the pipeline, the sealing ring enables the top surface of the valve seat to open as an air inlet.

[0009] Furthermore, it also includes: a connecting sleeve; the bottom of the connecting sleeve is fixedly connected to the through hole, and when the valve seat is placed in the placement position, the connecting sleeve is inserted; the sealing ring is arranged on the outer wall of the connecting sleeve.

[0010] Furthermore, the fixed connection between the connecting sleeve and the through hole is detachable, and the connecting sleeve and the sealing ring have multiple groups of different diameters.

[0011] Furthermore, the top surface of the equipment rack is provided with a circle of embedding grooves, and the sealing ring is arranged in the embedding grooves.

[0012] Furthermore, it also includes: a sleeve rod; the bottom end of the sleeve rod is fixed to the top surface of the equipment rack.

[0013] Furthermore, it also includes: a valve; the valve is arranged in the part of the pipeline between the pump and the pressure gauge.

[0014] In summary, in the present application, a valve seat detection device includes an equipment frame, a pump, a pressure gauge and a sealing ring. When detecting the valve seat, first place the valve seat in the placement position, then place the matching valve ball in the top opening of the valve seat, then turn on the pump to pump air, and finally judge whether the valve seat is qualified based on the reading of the pressure gauge. Because the sealing ring makes the top opening of the valve seat as an air inlet, when the pump pumps air, the outside air tends to enter from the air inlet of the valve seat. After placing the valve ball, the better the degree of fit between the valve seat and the valve ball, the less air can enter from between the valve ball and the valve seat, and the lower the reading of the pressure gauge. Beneficial effects: simple structure, convenient operation, and high detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the background technology, the drawings required for use in the embodiments of the present application or the background technology will be described below.

[0016] Figure 1 This is the front view of the application;

[0017] Figure 2 This is a view of the upper part after sectioning for this application;

[0018] Figure 3 for Figure 2 A magnified schematic diagram of part A;

[0019] Figure 4 This is a view of the upper part of another sealing ring of the present application after the lower section is set;

[0020] Figure 5 for Figure 4 A magnified schematic diagram of part B;

[0021] Figure 6 Schematic diagram of the setting of the sleeve rod and valve seat.

[0022] In the figure,

[0023] 1. Equipment rack; 1a. Connecting block; 1a1. Through hole; 1a2. First hole; 1b. Protrusion;

[0024] 2. Pump; 2a. First connector;

[0025] 3. Pressure gauge; 3a. Second connector;

[0026] 4. Sealing ring;

[0027] 5. Connecting sleeve;

[0028] 6. Set the rod;

[0029] 7. Valve;

[0030] 8. Valve seat;

[0031] 9. Valve ball. DETAILED DESCRIPTION

[0032] The following is further explained in conjunction with the accompanying drawings. Unless otherwise defined, the technical terms or scientific terms used in the present disclosure should be understood by people with ordinary skills in the field to which the present disclosure belongs. The "first", "second" and similar words used in the present disclosure do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0033] See also Figure 1 A valve seat detection device includes an equipment frame 1, a pump 2, a pressure gauge 3 and a sealing ring 4.

[0034] The top surface of the equipment rack 1 is provided with a placement position for placing the valve seat 8 and having a through hole 1a1. Specifically, the equipment rack 1 may include a frame body composed of profiles and a plate fixedly connected to the frame body.

[0035] The pump 2 is fixedly connected to the equipment frame 1. Specifically, the pump 2 can be fixedly connected to the frame.

[0036] See also Figure 1 and Figure 2 , a connecting pipeline is arranged between the pump 2 and the through hole 1a1 of the equipment frame 1. Specifically, it can be through the connecting block 1a. That is, the plate on the top of the equipment frame 1 is provided with a square through groove, the size of the connecting block 1a matches the through groove, and is fixedly connected to the bottom surface of the plate, and the top surface of the equipment frame 1 is composed of the top surface of the plate and the top surface of the connecting block 1a; the above-mentioned through hole 1a1 is arranged on the connecting block 1a, and the lower part of the through hole 1a1 has an internal thread, which can be threadedly connected with a first connector 2a, and a raw tape can be wrapped around the first connector 2a, and then threadedly connected to the through hole 1a1 to ensure sealing; the pipeline can be a hose, and the two ends are respectively connected to the connector and the air inlet of the pump 2 (for the convenience of representation, the hose is not shown in the attached figure).

[0037] The pressure gauge 3 is fixed to the equipment rack 1. Specifically, the top surface of the equipment rack 1 may have a protrusion 1b, and the pressure gauge 3 is fixedly connected to the vertical surface of the protrusion 1b, so that the displayed pressure data can be conveniently and intuitively seen. The pressure gauge 3 is also connected to the pipeline, that is, the pressure gauge 3 is used to measure the pressure in the pipeline. Specifically, the connecting block 1a may be provided with a first hole 1a2 connected to the through hole 1a1, and the first hole 1a2 is also threadedly connected with a second connector 3a, and a connected hose is provided between the second connector 3a and the pressure gauge 3.

[0038] The sealing ring 4 is set in the placement position. When the valve seat 8 is placed in the placement position, that is, the bottom surface of the valve seat 8 contacts the top surface of the equipment frame 1, the valve seat 8 is connected with the through hole 1a1 and the pipeline. The sealing ring 4 makes the top surface of the valve seat 8 open as an air inlet.

[0039] See also Figure 2 and Figure 3 In some embodiments, the top surface of the equipment rack 1 has a circle of embedded grooves, and the sealing ring 4 is arranged in the embedded grooves. That is, the sealing ring 4 is partially exposed from the embedded grooves, and when the valve seat 8 is placed in the placement position, the valve seat 8 is also placed on the sealing ring 4, and the sealing position is between the bottom surface of the valve seat 8 and the sealing ring 4.

[0040] Such a sealing ring 4 is relatively simple, but it will not be inapplicable if the size of the valve seat 8 is changed.

[0041] See also Figure 4 and Figure 5 In some embodiments, the valve seat detection device further includes a connecting sleeve 5. The bottom of the connecting sleeve 5 is fixedly connected to the through hole 1a1. Specifically, the upper portion of the through hole 1a1 may have an internal thread, and the connecting sleeve 5 is threadedly connected to the through hole 1a1. A raw tape may be wrapped around the connecting sleeve 5 and then threadedly connected to the through hole 1a1 to ensure sealing. Accordingly, the size of the connecting sleeve 5 is designed according to the size of the valve seat 8, and when the valve seat 8 is placed in the placement position, the connecting sleeve 5 is inserted. The sealing ring 4 is arranged on the outer wall of the connecting sleeve 5, and the sealing position is between the inner wall of the valve seat 8 and the sealing ring 4. Specifically, the sealing ring 4 may be hollow, and through deformation, the outer wall portion can better fit the inner wall of the valve seat 8.

[0042] Accordingly, there is a gap between the inner wall of the valve seat 8 and the outer wall of the connecting sleeve 5, the top surface of the valve seat 8 is higher than the top surface of the connecting sleeve 5, and the matching valve ball 9 is placed on the top surface opening of the valve seat 8 without contacting the connecting sleeve 5. In this way, the above-mentioned effect of "the sealing ring 4 makes the top surface opening of the valve seat 8 serve as an air inlet" can be achieved.

[0043] Furthermore, the fixed connection between the connecting sleeve 5 and the through hole 1a1 is detachable. Specifically, it can be the above-mentioned setting of "the upper part of the through hole 1a1 can have an internal thread, and the connecting sleeve 5 is threadedly connected to the through hole 1a1". There are multiple groups of connecting sleeves 5 and sealing rings 4 with different diameters, that is, multiple connecting sleeves 5 of different sizes can be installed on the through hole 1a1 in rotation for use. Each connecting sleeve 5 is provided with a sealing ring 4 of a matching size, which can be easily adjusted to adapt to valve seats 8 of different sizes.

[0044] When testing the valve seat 8, first place the valve seat 8 in the placement position, then place the matching valve ball 9 (the valve ball 9 has been tested by the roundness instrument and is qualified) in the top opening of the valve seat 8, then turn on the pump 2 to pump air, and finally judge whether the valve seat 8 is qualified based on the reading of the pressure gauge 3. Because the sealing ring 4 makes the top opening of the valve seat 8 an air inlet, when the pump 2 pumps air, the outside air tends to enter from the air inlet of the valve seat 8. After placing the valve ball 9, the better the degree of fit between the valve seat 8 and the valve ball 9, the less air can enter between the valve ball 9 and the valve seat 8 (even no air can enter), and the lower the reading of the pressure gauge 3.

[0045] See also Figure 6 In some embodiments, the valve seat detection device further comprises a sleeve rod 6. The bottom end of the sleeve rod 6 is fixed to the top surface of the equipment frame 1.

[0046] In this way, the valve seats 8 to be tested can be put on the sleeve rod 6 one by one, which is convenient for taking.

[0047] See also Figure 6 In some embodiments, the valve seat detection device further comprises a valve 7. The valve 7 is disposed in a portion of the pipeline between the pump 2 and the pressure gauge 3.

[0048] In this way, when testing the valve seat 8, the valve 7 is open, and after the pump 2 has pumped air for a period of time, the valve 7 can be closed, and then the pump 2 is turned off to observe the changes in the pressure gauge 3.

Claims

1. A valve seat detection device, characterized in that: include: The equipment frame (1) has a top surface provided with a placement position for placing the valve seat (8), and the placement position has a through hole (1a1); A pump (2) is fixed to the equipment frame (1), and a pipeline communicating with the through hole (1a1) of the equipment frame (1) is provided; A pressure gauge (3) is fixed to the equipment frame (1) and connected to a pipeline; The sealing ring (4) is arranged at a placement position; when the valve seat (8) is placed at the placement position and is in communication with the through hole (1a1) and the pipeline, the sealing ring (4) enables the top surface of the valve seat (8) to open as an air inlet.

2. A valve seat detection device according to claim 1, characterized in that: Also includes: A connecting sleeve (5); the bottom of the connecting sleeve (5) is fixedly connected to the through hole (1a1); when the valve seat (8) is placed in the placement position, it is inserted into the connecting sleeve (5); the sealing ring (4) is arranged on the outer wall of the connecting sleeve (5).

3. A valve seat detection device according to claim 2, characterized in that: The fixed connection between the connecting sleeve (5) and the through hole (1a1) is detachable, and the connecting sleeve (5) and the sealing ring (4) have multiple groups of different diameters.

4. A valve seat detection device according to claim 1, characterized in that: The top surface of the equipment rack (1) is provided with a circle of embedding grooves, and the sealing ring (4) is arranged in the embedding grooves.

5. A valve seat detection device according to claim 1, characterized in that: Also includes: A sleeve rod (6); the bottom end of the sleeve rod (6) is fixed to the top surface of the equipment frame (1).

6. A valve seat detection device according to claim 1, characterized in that: Also includes: A valve (7); the valve (7) is arranged in the portion of the pipeline between the pump (2) and the pressure gauge (3).

Images