Air pressure electric control brake valve

Abstract

The utility model relates to the technical field of air pressure electric control brake valves, in particular to an air pressure electric control brake valve which comprises a valve body, a threaded detection hole is preset in the surface of the outer wall of the valve body, a threaded cylinder is installed on the inner side of the threaded detection hole in a threaded mode, and a patch type pressure sensor is integrally constructed on the inner circumference of the threaded cylinder. A sensor PCB (Printed Circuit Board) is assembled at one end, far away from the threaded cylinder, of the surface-mounted sensor; when the pneumatic electric control brake valve is used, a threaded cylinder on the periphery of the patch type pressure sensor can be in threaded connection with a threaded detection hole in the periphery of the valve body, and meanwhile, the threaded cylinder is matched with a rubber ring, so that the tightness between the threaded detection hole and the threaded cylinder after connection is improved, and therefore the leakage condition is reduced, and the service life of the pneumatic electric control brake valve is prolonged. And the patch type pressure sensor is independently installed on the periphery of the valve body, so that the situation that the patch type pressure sensor is affected by foreign objects subsequently is reduced conveniently, and the patch type pressure sensor can detect the air pressure in the valve body more stably and smoothly.

Description

Technical Field

[0001] The utility model relates to the technical field of pneumatic and electric control brake valves, and particularly relates to a pneumatic and electric control brake valve. Background Art

[0002] As a key component for controlling and regulating the braking pressure of a vehicle, the performance of an electronically controlled pneumatic valve seriously affects the braking safety and operating stability of the vehicle; Patent No. CN202121251973.4 discloses a pneumatic and electric control brake valve and a pneumatic line control braking system. The control chamber air pressure detection module can directly collect the control chamber pressure as feedback, reducing the time delay of the feedback pressure and facilitating the precise regulation of the output pressure of the electronically controlled brake valve; however, since the patch-type pressure sensor is mounted on the surface of the sensor PCB, and the sensor PCB is installed on the surface of the dust cover, when the dust cover becomes loose, it is easy to drive some fine gaps to appear between the patch-type pressure sensor and the detection hole on the surface of the valve body. These gaps easily cause the air pressure inside the valve body to leak. For this reason, we propose a pneumatic and electric control brake valve. Content of the Utility Model

[0003] Aiming at the problems in the prior art, the utility model provides a pneumatic and electric control brake valve.

[0004] The technical solution adopted by the utility model to solve its technical problems is a pneumatic and electric control brake valve, which includes a valve body. A threaded detection hole is preset on the outer wall surface of the valve body, and a threaded cylinder is screwed and installed inside the threaded detection hole. A patch-type pressure sensor is integrally constructed on the inner circumference of the threaded cylinder, and a sensor PCB board is assembled at one end of the patch-type sensor away from the threaded cylinder. A rubber ring is assembled at one end of the threaded cylinder close to the threaded detection hole;

[0005] A screw sleeve is integrally constructed on the outer wall surface of the valve body, and there are multiple groups of screw sleeves. A pad for support is assembled at one end of the sensor PCB board away from the valve body, and an annular plate is rotatably installed on the outer circumference of the pad. A screw rod is inserted into the outer circumference of the annular plate and is screwed and connected to the screw sleeve, and there are multiple groups of screw rods.

[0006] By adopting the above technical solution, when the pneumatic and electric control brake valve is in use, the threaded cylinder on the outer circumference of the patch-type pressure sensor can be screwed and connected with the threaded detection hole on the outer circumference of the valve body. At the same time, the threaded cylinder and the rubber ring cooperate with each other to improve the tightness after the connection between the threaded detection hole and the threaded cylinder, thereby reducing the occurrence of leakage. Moreover, the patch-type pressure sensor is independently installed on the outer circumference of the valve body, which is convenient for reducing the subsequent influence by external objects, enabling the patch-type pressure sensor to detect the air pressure inside the valve body more stably and smoothly;

[0007] After the threaded cylinder on the outer periphery of the patch-type pressure sensor is connected to the threaded detection hole on the outer periphery of the valve body, at the same time, since the sensor PCB board connected to the patch-type pressure sensor is installed on the surface of the pad, multiple groups of screw rods inserted on the surface of the annular plate on the outer periphery of the pad can be screwed and connected to the screw sleeve on the outer periphery of the valve body, which is convenient for assisting in fixing the position of the pad and for supporting it, so that the pad and the sensor PCB board installed on its surface can operate more stably.

[0008] Specifically, an annular body is integrally formed on the outer wall surface of the valve body, and an annular cover for dust prevention is screwed and installed on the outer periphery of the annular body. A rubber pad for protection is bonded to one end of the annular cover close to the valve body.

[0009] By adopting the above technical solution, the annular cover is screwed and connected to the annular body on the surface of the valve body, which is convenient for dust prevention and convenient for disassembly and assembly. At the same time, the rubber pad is convenient for sealing and protecting the gap between the annular cover and the annular body, which is convenient for reducing the situation where dust and sundries penetrate from the gap between the two.

[0010] Specifically, convex strips are integrally formed on the outer peripheral surface of the annular cover, and there are multiple groups of convex strips. A rubber sleeve for wire protection is clamped inside the annular cover.

[0011] By adopting the above technical solution, the multiple groups of convex strips on the outer periphery of the annular cover make the disassembly and assembly of the annular cover more convenient. At the same time, the rubber sleeve has good elasticity and is convenient for protecting the wire passing through the middle of the annular cover.

[0012] Specifically, transverse grooves are formed on the outer peripheral surface of the threaded cylinder, and there are multiple groups of transverse grooves.

[0013] By adopting the above technical solution, the transverse grooves are located at the position of the threaded cylinder outside the threaded detection hole, making the disassembly and assembly of the threaded cylinder more convenient.

[0014] Specifically, a ceramic ring for wire protection is assembled on the outer peripheral surface of the pad.

[0015] By adopting the above technical solution, the ceramic ring is convenient for protecting the wire passing through the pad.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] 1. The technical solution of this application, through the design of the thread detection hole, the thread barrel, the patch-type pressure sensor and the rubber ring, when the pneumatic-electric control valve is in use, the thread barrel on the outer periphery of the patch-type pressure sensor can be screwed and connected with the thread detection hole on the outer periphery of the valve body. At the same time, the cooperation between the thread barrel and the rubber ring is convenient for improving the tightness after the connection between the thread detection hole and the thread barrel, thereby reducing the occurrence of leakage. Moreover, the patch-type pressure sensor is independently installed on the outer periphery of the valve body, which is convenient for reducing the influence of external objects in the follow-up, so that the patch-type pressure sensor can detect the air pressure inside the valve body more stably and smoothly.

[0018] 2. The technical solution of this application, through the design of the sensor PCB board, the cushion plate, the ring plate, the screw sleeve and the screw, when the thread barrel on the outer periphery of the patch-type pressure sensor is connected with the thread detection hole on the outer periphery of the valve body, at the same time, since the sensor PCB board connected to the patch-type pressure sensor is installed on the surface of the cushion plate, the multiple screws inserted on the surface of the ring plate on the outer periphery of the cushion plate can be screwed and connected with the screw sleeve on the outer periphery of the valve body, which is convenient for assisting in fixing the position of the cushion plate and is convenient for supporting it, so that the cushion plate and the sensor PCB board installed on its surface can operate more stably. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present utility model will be further described below with reference to the drawings and embodiments.

[0020] Figure 1 is an isometric view of the present utility model;

[0021] Figure 2 is a schematic cross-sectional view of the connection structure between the valve body and the ring cover of the present utility model;

[0022] Figure 3 is a schematic view of the connection structure between the patch-type pressure sensor and the thread barrel of the present utility model;

[0023] In the figure: 1. Valve body; 2. Thread detection hole; 3. Thread barrel; 4. Patch-type pressure sensor; 5. Sensor PCB board; 6. Transverse groove; 7. Rubber ring; 8. Cushion plate; 9. Ring plate; 10. Screw sleeve; 11. Screw; 12. Ceramic ring; 13. Ring body; 14. Ring cover; 15. Rubber sleeve; 16. Convex strip; 17. Rubber pad. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] In order to make the technical means, creative features, achieved purposes and effects of the present utility model easy to understand, the present utility model will be further described below in conjunction with the specific embodiments.

[0025] Please refer to Figures 1-3, an embodiment of the present utility model provides a technical solution: a pneumatic and electric control brake valve, including a valve body 1. A threaded detection hole 2 is preset on the outer wall surface of the valve body 1, and a threaded cylinder 3 is screwed and installed inside the threaded detection hole 2. A patch type pressure sensor 4 is integrally formed on the inner circumference of the threaded cylinder 3, and a sensor PCB board 5 is assembled at one end of the patch type sensor away from the threaded cylinder 3. A rubber ring 7 is assembled at one end of the threaded cylinder 3 close to the threaded detection hole 2; a screw sleeve 10 is integrally formed on the outer wall surface of the valve body 1, and there are multiple groups of the screw sleeves 10. A cushion plate 8 for support is assembled at one end of the sensor PCB board 5 away from the valve body 1, and an annular plate 9 is rotatably installed on the outer circumference of the cushion plate 8. A screw rod 11 inserted and connected with the screw sleeve 10 is assembled on the outer circumference of the annular plate 9, and there are multiple groups of the screw rods 11.

[0026] During use, when the pneumatic and electric control brake valve is in use, the threaded cylinder 3 on the outer circumference of the patch type pressure sensor 4 can be screwed and connected with the threaded detection hole 2 on the outer circumference of the valve body 1. At the same time, the cooperation between the threaded cylinder 3 and the rubber ring 7 is convenient for improving the tightness after the connection between the threaded detection hole 2 and the threaded cylinder 3, thereby reducing the occurrence of leakage. Moreover, the patch type pressure sensor 4 is independently installed on the outer circumference of the valve body 1, which is convenient for reducing the influence of external objects in the future, so that the patch type pressure sensor 4 can detect the air pressure inside the valve body 1 more stably and smoothly;

[0027] When the threaded cylinder 3 on the outer circumference of the patch type pressure sensor 4 is connected with the threaded detection hole 2 on the outer circumference of the valve body 1, at the same time, since the sensor PCB board 5 connected to the patch type pressure sensor 4 is installed on the surface of the cushion plate 8, the multiple groups of screw rods 11 inserted on the surface of the annular plate 9 on the outer circumference of the cushion plate 8 can be screwed and connected with the screw sleeves 10 on the outer circumference of the valve body 1, which is convenient for assisting in fixing the position of the cushion plate 8 and facilitating its support, so that the cushion plate 8 and the sensor PCB board 5 installed on its surface can operate more stably.

[0028] As Figure 1 and Figure 2 shown, a ring body 13 is integrally formed on the outer wall surface of the valve body 1, and a ring cover 14 for dust prevention is screwed and installed on the outer circumference of the ring body 13. A rubber pad 17 for protection is bonded at one end of the ring cover 14 close to the valve body 1.

[0029] During use, the ring cover 14 is screwed and connected with the ring body 13 on the surface of the valve body 1, which is convenient for dust prevention and convenient for disassembly and assembly. At the same time, the rubber pad 17 is convenient for sealing and protecting the gap between the ring cover 14 and the ring body 13, and is convenient for reducing the situation that dust and sundries penetrate from the gap between the two.

[0030] As Figure 1 and Figure 2 shown, multiple groups of convex strips 16 are integrally formed on the outer circumference surface of the ring cover 14, and a rubber sleeve 15 for wire protection is clamped inside the ring cover 14.

[0031] During use, multiple sets of convex strips 16 on the outer periphery of the ring cover 14 make the disassembly and assembly of the ring cover 14 more convenient. At the same time, the rubber sleeve 15 has good elasticity, facilitating the protection of the wire passing through the middle of the ring cover 14.

[0032] As Figure 2 and Figure 3 shown, transverse grooves 6 are provided on the outer peripheral surface of the threaded cylinder 3, and there are multiple sets of the transverse grooves 6.

[0033] During use, the transverse grooves 6 are located at the position of the threaded cylinder 3 outside the thread detection hole 2, making the disassembly and assembly of the threaded cylinder 3 more convenient.

[0034] As Figure 2 shown, a ceramic ring 12 for wire protection is assembled on the outer peripheral surface of the cushion plate 8.

[0035] During use, the ceramic ring 12 facilitates the protection of the wire passing through the cushion plate 8.

[0036] The working principle and usage process of the present utility model: During use, first install the corresponding structural components in appropriate positions. When using the pneumatic-electric control brake valve, the threaded cylinder 3 on the outer periphery of the patch type pressure sensor 4 can be screwed and connected with the thread detection hole 2 on the outer periphery of the valve body 1. At the same time, the threaded cylinder 3 and the rubber ring 7 cooperate with each other to improve the tightness after the connection between the thread detection hole 2 and the threaded cylinder 3, thereby reducing the occurrence of leakage. Moreover, the patch type pressure sensor 4 is independently installed on the outer periphery of the valve body 1, facilitating the reduction of the subsequent influence by external objects. When the threaded cylinder 3 on the outer periphery of the patch type pressure sensor 4 is connected with the thread detection hole 2 on the outer periphery of the valve body 1, and at the same time, since the sensor PCB board 5 connected to the patch type pressure sensor 4 is installed on the surface of the cushion plate 8, multiple sets of screw rods 11 inserted on the surface of the ring plate 9 on the outer periphery of the cushion plate 8 can be screwed and connected with the screw sleeve 10 on the outer periphery of the valve body 1, facilitating the auxiliary fixation of the position of the cushion plate 8 and facilitating its support, so that the cushion plate 8 and the sensor PCB board 5 installed on its surface can operate more stably, and enabling the patch type pressure sensor 4 to detect the air pressure inside the valve body 1 more stably and smoothly.

[0037] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of protection required by the present utility model. The scope of protection required by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A pneumatic electrically controlled brake valve, characterized in that: The valve body (1) comprises a valve body (1), wherein a threaded detection hole (2) is preset on the outer wall surface of the valve body (1), and a threaded barrel (3) is screwed and installed inside the threaded detection hole (2), and a patch pressure sensor (4) is integrally constructed inside the threaded barrel (3), and a sensor PCB board (5) is installed at one end of the patch sensor away from the threaded barrel (3), and a rubber ring (7) is installed at one end of the threaded barrel (3) close to the threaded detection hole (2); The outer wall surface of the valve body (1) is integrally constructed with a screw sleeve (10), and there are multiple groups of screw sleeves (10); one end of the sensor PCB board (5) away from the valve body (1) is equipped with a pad (8) for support, and a ring plate (9) is rotatably installed on the outer periphery of the pad (8); the outer periphery of the ring plate (9) is plugged with a screw (11) threadedly connected to the screw sleeve (10), and there are multiple groups of screws (11).

2. The pneumatic electrically controlled brake valve according to claim 1, characterized in that: The outer wall surface of the valve body (1) is integrally formed with a ring body (13), and a dust-proof ring cover (14) is screwed onto the outer periphery of the ring body (13), and a protective rubber pad (17) is bonded to one end of the ring cover (14) close to the valve body (1).

3. The pneumatic electrically controlled brake valve according to claim 2, characterized in that: The outer peripheral surface of the ring cover (14) is integrally formed with convex strips (16), and there are multiple groups of convex strips (16). The inner periphery of the ring cover (14) is clamped with a rubber sleeve (15) for wire protection.

4. The pneumatic electrically controlled brake valve according to claim 1, characterized in that: The outer peripheral surface of the threaded barrel (3) is provided with transverse grooves (6), and there are multiple groups of transverse grooves (6).

5. The pneumatic electrically controlled brake valve according to claim 1, characterized in that: The outer peripheral surface of the pad (8) is equipped with a ceramic ring (12) for wire protection.

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