Valve body sealing performance detection device

Abstract

The utility model discloses a valve body sealing performance detection device which comprises a fixed bottom plate, vertical plates are fixed on the left part and the right part of the top surface of the fixed bottom plate, a pressing cylinder is fixed on the outer side wall of the vertical plate on the left side, the end part of a push rod of the pressing cylinder extends out of the right side wall of the vertical plate on the left side and is fixedly provided with a left pressing sleeve, and the end part of the push rod extends out of the right side wall of the vertical plate on the right side. A left elastic sealing piece is fixed to the right end face of the left pressing sleeve, a right limiting sleeve is connected into a threaded through hole in the middle of the vertical plate on the right side in a threaded mode, the left end of the right limiting sleeve extends out of the left side wall of the vertical plate on the right side and is fixedly provided with a right elastic sealing piece, and the left pressing sleeve and the right limiting sleeve are both connected with communicating connectors in a communicating mode. The valve body is only required to be placed on the two positioning rods, the right elastic sealing element extends into the right end hole of the valve body, and then the left elastic sealing element can extend into the left end hole of the valve body through pushing of the push rod of the pressing air cylinder, so that automatic plugging is realized, the installation difficulty is greatly reduced, the pressing is firm, the detection effect is ensured, and the manual labor amount is reduced.

Description

Technical field:

[0001] The utility model relates to the technical field of valve body equipment, and more specifically to a sealing detection device for a valve body. Background technology:

[0002] Some existing relay valves, ABS valves and other valve bodies used in automobiles need to be tested for sealing after processing. The existing testing method is to pass water or gas into the valve body, and then use a pressure sensor to detect whether the pressure of its inner cavity is constant at a specified value. If it meets the constant value, it means that its sealing is good, otherwise it is unqualified;

[0003] The existing method is to manually press the ventilation connector or the connecting connector into the corresponding hole of the valve body. At this time, the hand needs to maintain pressure on it, otherwise the ventilation connector will fall out during the subsequent water flow process. At the same time, the detection head of the pressure sensor is fixed at the detection hole position of the valve body, and then water or gas is passed into it, and its pressure is detected by the pressure sensor. The manual installation is inefficient and requires a lot of manual labor. Utility model content:

[0004] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a valve body sealing detection device, which only requires the valve body to be placed on two positioning rods, and after the right elastic seal is inserted into the right end hole of the valve body, the left elastic seal can be inserted into the left end hole of the valve body by pushing the push rod of the clamping cylinder, thereby realizing automatic blocking, greatly reducing the difficulty of installation, and firmly clamping, thereby ensuring the detection effect and reducing the amount of manual labor.

[0005] The solution of the utility model to solve the technical problem is:

[0006] A valve body sealing detection device comprises a fixed bottom plate, the left and right parts of the top surface of the fixed bottom plate are fixed with vertical plates, a pressing cylinder is fixed on the outer side wall of the left vertical plate, the end of the push rod of the pressing cylinder extends out of the right side wall of the left vertical plate and is fixed with a left pressing sleeve, a left elastic sealing member is fixed to the right end face of the left pressing sleeve, a right limiting sleeve is screwed in a screw-connected through hole in the middle part of the right vertical plate, the left end of the right limiting sleeve extends out of the left side wall of the right vertical plate and is fixed with a right elastic sealing member, and a connecting joint is connected to the left pressing sleeve and the right limiting sleeve;

[0007] A central flow through hole is formed at the middle of the right end of the left elastic seal and the middle of the left end of the right elastic seal;

[0008] The left elastic seal blocks the left end hole of the valve body to be tested, and the right elastic seal blocks the right end hole of the valve body. A detection screw hole is formed on the top plate of the valve body. The detection screw hole, the left end hole and the right end hole are connected to the inner cavity of the valve body.

[0009] It can automatically press the left elastic seal and the right elastic seal against and seal the left end hole and the right end hole of the valve body, so that they are not easy to loosen during subsequent inspection, greatly reducing the manual labor.

[0010] A rear support plate extending left and right is fixed to the rear portion of the top surface of the fixed bottom plate, and opposite wall surfaces of the rear portions of the two vertical plates are fixed to the left and right side walls of the rear support plate.

[0011] A positioning plate is fixedly connected to the front wall surface of the rear support plate by bolts. The positioning plate is provided with two positioning rods, and the front ends of the positioning rods extend out of the front wall surface of the positioning plate.

[0012] Positioning rods are installed at the lower left part and the upper right part of the positioning plate, the front end of the positioning rod extends out of the corresponding through hole on the positioning plate, an annular groove is formed on the rear end inner wall of the through hole, a radial extension portion is formed on the rear end outer wall of the positioning rod, the radial extension portion is inserted into the annular groove, and the radial extension portion is clamped between the front wall surface of the rear support plate and the front end surface of the annular groove.

[0013] The two positioning rods can assist in supporting the valve body to be inspected, greatly reducing the difficulty and labor of manual installation.

[0014] The outstanding effects of the utility model are:

[0015] It only requires placing the valve body on two positioning rods, inserting the right elastic seal into the right end hole of the valve body, and then pushing the push rod of the clamping cylinder to insert the left elastic seal into the left end hole of the valve body to achieve automatic sealing, greatly reducing the difficulty of installation, and firmly clamping to ensure the detection effect and reduce manual labor. Description of the drawings:

[0016] Figure 1 It is a partial structural schematic diagram of the utility model;

[0017] Figure 2 yes Figure 1 A partial top view of

[0018] Figure 3 It is a partial structural schematic diagram of the end surface of the left elastic seal or the right elastic seal of the utility model;

[0019] Figure 4 yes Figure 1 A partial enlarged view of . Specific implementation method:

[0020] See Figures 1 to 4As shown, a valve body sealing detection device includes a fixed bottom plate 10, vertical plates 11 are fixed to the left and right parts of the top surface of the fixed bottom plate 10, supporting ribs are fixed to the front and rear parts of the outer wall of the vertical plate 11, and the bottom surface of the supporting ribs is fixed to the top plate of the stand. At the same time, a control host is fixed to the rear part of the top surface of the top plate of the stand, and the signal line of the pressure sensor is electrically connected to the control host. The control host can display the data sensed by the pressure sensor on a display screen electrically connected to the control host; it is a conventional structure, so it is not shown in the accompanying drawings.

[0021] A pressing cylinder 20 is fixed on the outer side wall of the left vertical plate 11, the end of the push rod of the pressing cylinder 20 extends out of the right side wall of the left vertical plate 11 and is fixed with a left pressing sleeve 21, and the left side wall of the left end plate of the left pressing sleeve 21 is fixed on the end face of the push rod of the pressing cylinder 20;

[0022] A left elastic seal 22 is fixed to the right end surface of the left pressing sleeve 21, a right limiting sleeve 23 is screwed into the middle screw-through hole of the right vertical plate 11, the left end of the right limiting sleeve 23 extends out of the left side wall of the right vertical plate 11 and is fixed with a right elastic seal 24, and the left pressing sleeve 21 and the right limiting sleeve 23 are both connected with a connecting joint 1;

[0023] A central flow through hole 221 is formed at the middle of the right end of the left elastic seal 22 and the middle of the left end of the right elastic seal 24;

[0024] The left elastic seal 22 blocks the left end hole of the valve body 100 to be tested, and the right elastic seal 24 blocks the right end hole of the valve body 100. A detection screw hole is formed on the top plate of the valve body 100, and the detection screw hole, the left end hole and the right end hole are connected to the internal cavity of the valve body 100.

[0025] Furthermore, the left elastic seal 22 and the right elastic seal 24 both include a cylindrical threaded portion 222, a radially extending edge portion 223 is formed on the right end outer wall of the cylindrical threaded portion 222 of the left elastic seal 22, a radially extending edge portion 223 is formed on the left end outer wall of the cylindrical threaded portion 222 of the right elastic seal 24, and a central flow through hole 221 is formed in the middle of the cylindrical threaded portion 222.

[0026] The left side wall of the radially extending edge 223 of the left elastic seal 22 is pressed against the right end surface of the left clamping sleeve 21 , and the right side wall of the radially extending edge 223 of the right elastic seal 24 is pressed against the left end surface of the right limiting sleeve 23 .

[0027] Furthermore, an external thread is formed on the outer side wall of the cylindrical threaded portion 222 , which is threaded onto the internal thread of the left clamping sleeve 21 or the internal thread of the right limiting sleeve 23 .

[0028] Furthermore, a threaded through hole is formed on the side plate of the left clamping sleeve 21, and one end of the corresponding connecting joint 1 is threaded in the threaded through hole (a raw tape is provided between the outer wall of one end of the connecting joint 1 and the inner thread of the threaded through hole to achieve sealing, which is a conventional installation method and will not be described in detail here) and is connected to the left clamping sleeve 21, and the right end portion of the right limiting sleeve 23 extends out of the right side wall of the vertical plate 11 on the right side and is connected to one end of the corresponding connecting joint 1 (a raw tape is provided between the outer thread of one end of the connecting joint 1 and the inner thread of the right end portion of the right limiting sleeve 23 to achieve sealing, which is a conventional installation method and will not be described in detail here).

[0029] Furthermore, the cross section of the central flow through hole 221 is cross-shaped.

[0030] Furthermore, a rear support plate 12 extending left and right is fixed to the rear of the top surface of the fixed bottom plate 10 , and the rear opposite walls of the two vertical plates 11 are fixed to the left and right side walls of the rear support plate 12 .

[0031] Furthermore, a positioning plate 13 is fixedly connected to the front wall surface of the rear support plate 12 by bolts, and two positioning rods 14 are installed on the positioning plate 13 , and the front ends of the positioning rods 14 extend out of the front wall surface of the positioning plate 13 .

[0032] Furthermore, positioning rods 14 are installed at the lower left part and the upper right part of the positioning plate 13, the front end of the positioning rod 14 extends out of the corresponding through hole 131 on the positioning plate 13, and an annular groove is formed on the inner wall of the rear end of the through hole 131, and a radial extension portion 141 is formed on the outer wall of the rear end of the positioning rod 14. The radial extension portion 141 is inserted into the annular groove, and the radial extension portion 141 is clamped between the front wall surface of the rear support plate 12 and the front end surface of the annular groove.

[0033] This structure enables the positioning rod 14 to be firmly fixed.

[0034] When the present embodiment is in use, the valve body 100 to be tested (simply shown in the attached figure) is placed between the two positioning rods 14. At this time, the right end hole thereof faces the right elastic seal 24, and the right elastic seal 24 is moved backward so that the left end of the right elastic seal 24 is inserted into the right end hole. The right end inner wall of the right end hole is formed with an annular groove. At this time, the radially extending edge 223 of the right elastic seal 24 is just embedded in the annular groove, the outer side wall of the radially extending edge 223 of the right elastic seal 24 is tightly attached to the inner side wall of the annular groove, and the left end face of the radially extending edge 223 of the right elastic seal 24 is pressed against the left end face of the annular groove.

[0035] At this time, the left end hole of the valve body 100 to be tested faces the left elastic seal 22, and is pushed by the push rod of the clamping cylinder 20 (the clamping cylinder 20 is connected to the outlet end of the control valve connected to the outlet end of the air pump through a connecting pipe, and the push rod of the clamping cylinder 20 is pushed or retracted through the operation of the air pump and the control valve. It is a conventional structure and will not be described in detail here. It can also be connected to the outlet end of the control valve connected to the outlet end of the air tank of the air compressor through a connecting pipe), so that the left elastic seal 22 moves to the right, so that The right end of the left elastic seal 22 extends into the left end hole of the valve body 100, and an annular groove is also formed on the inner wall of the left end of the left end hole. The outer wall of the radially extending edge 223 of the left elastic seal 22 is tightly attached to the inner wall of the annular groove, and the right end surface of the radially extending edge 223 of the left elastic seal 22 is pressed against the right end surface of the annular groove. The push rod of the pressing cylinder 20 is used to push, thereby ensuring that the left elastic seal 22 and the right elastic seal 24 cover and press the holes at the left and right ends of the valve body 100 to achieve sealing;

[0036] Then, the detection head of the pressure sensor is screwed and fixed in the detection hole of the valve body 100, and the outer end of the connecting joint 1 is connected to the air outlet end of the control valve connected to the air pump through a connecting pipe (this is inflation), or is connected to the water outlet end of the water pump through a connecting pipe, and the water inlet end of the water pump extends into the water tank. The water tank, water pump, etc. are all installed at the bottom of the stand. It is a conventional structure and will not be described in detail here and is not shown in the drawings.

[0037] This embodiment is for ventilation. After the valve body 100 is filled with gas, the internal pressure can be detected by the detection head of the pressure sensor. Then, the control valve at the air pump runs, and the ventilation is stopped. After waiting for a certain period of time, such as 1 minute, the data transmitted to the control host by the detection head of the pressure sensor is observed. If the pressure value displayed on the display screen does not change, it means that the sealing of the valve body 100 meets the requirements. If the pressure value keeps changing, it means that its sealing is unqualified and does not meet the product requirements.

[0038] This embodiment has a simple structure and is easy to detect, and does not require manual pressure and fixation, thereby greatly reducing manual labor.

[0039] The specific embodiments described above further illustrate the technical problems, technical solutions and beneficial effects solved by the present invention. It should be understood that the above are only specific embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A valve body sealing detection device, comprising a fixed bottom plate (10), characterized in that: The left and right parts of the top surface of the fixed bottom plate (10) are both fixed with vertical plates (11), the outer side wall of the left vertical plate (11) is fixed with a clamping cylinder (20), the end of the push rod of the clamping cylinder (20) extends out of the right side wall of the left vertical plate (11) and is fixed with a left clamping sleeve (21), the right end face of the left clamping sleeve (21) is fixed with a left elastic sealing member (22), a right limiting sleeve (23) is screwed into a screw-connected through hole in the middle of the right vertical plate (11), the left end of the right limiting sleeve (23) extends out of the left side wall of the right vertical plate (11) and is fixed with a right elastic sealing member (24), and the left clamping sleeve (21) and the right limiting sleeve (23) are both connected with a connecting joint (1); A central flow through hole (221) is formed at the middle of the right end of the left elastic seal (22) and the middle of the left end of the right elastic seal (24); The left elastic seal (22) blocks the left end hole of the valve body (100) to be tested, and the right elastic seal (24) blocks the right end hole of the valve body (100). A detection screw hole is formed on the top plate of the valve body (100), and the detection screw hole, the left end hole, and the right end hole are connected to the inner cavity of the valve body (100).

2. A valve body sealing detection device according to claim 1, characterized in that: The left elastic seal (22) and the right elastic seal (24) both include a cylindrical threaded portion (222), a radially extending edge portion (223) is formed on the right end outer wall of the cylindrical threaded portion (222) of the left elastic seal (22), a radially extending edge portion (223) is formed on the left end outer wall of the cylindrical threaded portion (222) of the right elastic seal (24), and a central flow through hole (221) is formed in the middle of the cylindrical threaded portion (222) and runs through the left and right sides; The left side wall of the radially extending edge (223) of the left elastic seal (22) is pressed against the right end surface of the left clamping sleeve (21), and the right side wall of the radially extending edge (223) of the right elastic seal (24) is pressed against the left end surface of the right limiting sleeve (23).

3. A valve body sealing detection device according to claim 2, characterized in that: An external thread is formed on the outer side wall of the cylindrical threaded portion (222), which is threaded onto the internal thread of the left pressing sleeve (21) or the internal thread of the right limiting sleeve (23).

4. A valve body sealing detection device according to claim 1, characterized in that: A threaded through hole is formed on the side plate of the left clamping sleeve (21), one end of the corresponding connecting joint (1) is threaded in the threaded through hole and communicates with the left clamping sleeve (21), and the right end of the right limiting sleeve (23) extends out of the right side wall of the right vertical plate (11) and communicates with one end of the corresponding connecting joint (1).

5. The valve body sealing detection device according to claim 1, characterized in that: The cross section of the central flow through hole (221) is cross-shaped.

6. A valve body sealing detection device according to claim 1, characterized in that: A rear support plate (12) extending left and right is fixed to the rear of the top surface of the fixed bottom plate (10), and the rear opposite wall surfaces of the two vertical plates (11) are fixed to the left and right side walls of the rear support plate (12).

7. A valve body sealing detection device according to claim 6, characterized in that: A positioning plate (13) is fixedly connected to the front wall surface of the rear support plate (12) by means of bolts, and the positioning plate (13) is provided with two positioning rods (14), the front ends of the positioning rods (14) extending out of the front wall surface of the positioning plate (13).

8. A valve body sealing detection device according to claim 7, characterized in that: A positioning rod (14) is installed at the lower left part and the upper right part of the positioning plate (13); the front end of the positioning rod (14) extends out of the corresponding through hole (131) on the positioning plate (13); an annular groove is formed on the inner side wall of the rear end of the through hole (131); a radial extension portion (141) is formed on the outer side wall of the rear end of the positioning rod (14); the radial extension portion (141) is inserted into the annular groove; the radial extension portion (141) is clamped between the front wall surface of the rear support plate (12) and the front end surface of the annular groove.

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