Relay valve detection mechanism

Abstract

The utility model relates to a relay valve detection mechanism, which comprises a clamp body used for clamping a relay valve. The conveying device is used for configuring the clamp body and linearly conveying the clamp body to a detection position; the limiting device can position the clamp body at the detection position; the circuit on-off device is used for carrying out power-on detection on the relay valve; the gas path on-off device is used for sealing a valve port of the relay valve; when the clamp body is located at the detection position and the relay valve is in a detection state, the limiting device and the clamp body form a temporary position keeping structure, and the gas path on-off device and the relay valve are in a butt joint sealing state. According to the relay valve detection mechanism, the stability of product quality is enhanced, and the detection precision and the detection efficiency of products are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of relay valve detection, in particular to a relay valve detection mechanism. Background Art

[0002] In the Automatic Emergency Braking System (AEBS), the relay valve plays a crucial role. It is one of the key components in the system's control of pneumatic braking and enables precise execution of braking signals. Specifically, the relay valve is responsible for air path control and air pressure stabilization in the AEBS. Consequently, testing the relay valve involves checking its sealing, circuit continuity, and airflow continuity.

[0003] However, the current inspection of relay valves mostly relies on manual operations, such as manual clamping of relay valves, resulting in unsatisfactory requirements in terms of product quality stability and inspection accuracy, especially for short-term batch inspection of relay valves. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a relay valve detection mechanism, which enhances the stability of product quality and improves the detection accuracy and detection efficiency of the product.

[0005] The purpose of this utility model is achieved through the following technical solutions:

[0006] The utility model provides a relay valve detection mechanism, which includes:

[0007] A clamp body for clamping a relay valve;

[0008] a conveying device for arranging the clamp body and transporting the clamp body in a straight line to a detection position;

[0009] A limiting device capable of positioning the clamp body at the detection position;

[0010] A circuit on-off device for detecting the power supply of the relay valve;

[0011] an air circuit on-off device for sealing the valve port of the relay valve; and

[0012] When the clamp body is located at the detection position and the relay valve is in the detection state, the limiting device and the clamp body form a temporary position maintaining structure, and the air path on-off device and the relay valve are in a docking and sealing state.

[0013] In some embodiments, the main body of the clamp body has a plate-shaped area and the plate-shaped area has a limiting hole, and the limiting device includes a limiting pin that cooperates with the limiting hole of the clamp body to limit the position.

[0014] In certain embodiments, the delivery device comprises:

[0015] a connecting assembly connected to the clamp body;

[0016] A delivery cylinder that drives the cylinder connection assembly to move along a horizontal longitudinal straight line is connected to the connection assembly.

[0017] In some embodiments, the limiting device further includes: a limiting cylinder connected to the limiting pin and moving the limiting pin in the vertical direction.

[0018] In some embodiments, the number of the gas circuit opening and closing devices is three.

[0019] In some embodiments, each of the gas circuit opening and closing devices includes:

[0020] Sealing joints; and

[0021] The sealing joint is driven to move horizontally and laterally to a clamping cylinder that is docked with the relay valve and is connected to the sealing joint.

[0022] In some embodiments, the circuit breaking device includes:

[0023] Copper core;

[0024] A wire electrically connecting the copper core to a power source, and

[0025] An electrified cylinder assembly drives the copper core to cooperatively contact the plug of the relay valve.

[0026] In certain embodiments, the relay valve detection mechanism further includes: a silencing device for silencing the exhaust port of the relay valve.

[0027] In certain embodiments, the relay valve detection mechanism further includes: a bracket for configuring the conveying device, the limiting device, the circuit switching device, the gas path switching device, and the silencer.

[0028] The beneficial effects of the present invention are as follows: the relay valve detection mechanism of the present invention detects the relay valve and integrates the functional modules such as the clamp body, conveying device, circuit on-off device and air path on-off device required for the detection link to realize an integrated detection structure, thereby improving the detection efficiency of the product, especially for the short-term batch detection of the relay valve, saving labor costs. Among them, the relay valve detection mechanism can automatically and linearly transport the clamp body to the detection position through the conveying device, simplifying the operation process, improving the detection efficiency, and being suitable for high-frequency and batch detection scenarios. The relay valve detection mechanism accurately positions the clamp body to the detection position through the positioning device and forms a temporary position holding structure with the clamp body, effectively avoiding displacement and jitter during the detection process, ensuring the position stability of the relay valve during the detection process, and improving the detection accuracy. When the relay valve is in the detection state, the air path on-off device is docked and sealed with the relay valve to ensure that the on-off test of the air path is carried out in an airtight environment, thereby improving the reliability and consistency of the detection results and reducing the false detection rate. This relay valve detection mechanism uses a circuit on-off device to detect the power supply of the relay valve, accurately judging the electrical performance of the relay valve, reducing manual intervention and achieving highly automated detection. Based on this design, the stability of the relay valve detection quality is enhanced. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0030] Figure 1 This is a structural diagram of a relay valve detection mechanism and its associated parts provided in one embodiment of the present invention;

[0031] Figure 2 This is a schematic diagram of the structure of the conveying device and the limiting device and their associated parts provided in one embodiment of the present invention;

[0032] Figure 3 This is a schematic structural diagram of a gas path on-off device and its associated parts provided in one embodiment of the present invention;

[0033] Figure 4 A schematic structural diagram of a relay valve provided in one embodiment of the present invention. DETAILED DESCRIPTION

[0034] In order to better understand the technical solution of the present application, the embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0035] like Figure 1 — Figure 4 As shown, in one embodiment, a relay valve detection mechanism is provided for detecting the sealing performance, circuit on-off performance, and air flow on-off performance of the relay valve 100. The relay valve detection mechanism includes: a clamping body 10, a conveying device 20, a circuit on-off device 40, and an air path on-off device 50; in some embodiments, the relay valve detection mechanism also includes: a silencer 60 for silencing the exhaust port of the relay valve 100.

[0036] In some embodiments, the relay valve detection mechanism further includes: a bracket 70 for configuring the conveying device 20, the limiting device 30, the circuit switching device 40, the gas path switching device 50 and the silencer 60. In some embodiments, the bracket 70 includes a first support portion 701 for supporting the limiting device 30, a second support portion 702 for supporting the conveying device 20, and a third support portion 703 for supporting the circuit switching device 40, the gas path switching device 50 and the silencer 60, wherein the first support portion 701 is mainly composed of a plurality of support plates and is in an upright U-shape, and the limiting device 30 can be arranged on the inner side of the U-shaped first support portion 701, the second support portion 702 is mainly composed of a horizontal support plate, and the third support portion 703 is mainly composed of a horizontal top plate 7031 and a bottom plate located on both sides of the horizontal top plate 7031. The limiting device 30 is installed on the first supporting part 701, the conveying device 20 is installed on the second supporting part 702, the circuit-breaking device 40 is installed on the horizontal top plate 7031 of the third supporting part 703, and there are three air-circuit breaking devices 50, one of which is installed on the horizontal top plate 7031 of the second supporting part 702, and the other two air-circuit breaking devices 50 are respectively installed on the vertical supporting plates of the second supporting part 702, and the silencer 60 is installed on the back panel of the third supporting part 703.

[0037] The clamp body 10 is used to clamp the relay valve 100; in some embodiments, the main part of the clamp body 10 has a plate-shaped area and the plate-shaped area has a limiting hole 101. The main part of the clamp body 10 is placed horizontally. The number of the limiting holes 101 can be multiple and each limiting hole 101 is vertically through. The limiting device 30 includes a limiting pin 301 that cooperates with the limiting hole 101 of the clamp body 10 to limit the position. Specifically, the limiting pin 301 is embedded in the limiting hole 101, that is, the limiting device 30 has a limiting effect on the clamp body 10. In some embodiments, the front side, rear side and top of the relay valve 100 have valve ports that cooperate with the corresponding air circuit disconnection device 50 for sealing and clamping. The valve ports are located in the right end area of ​​the relay valve 100. The right side of the relay valve 100 has an exhaust port that cooperates with the silencer 60. The top of the relay valve 100 has a plug that cooperates with the circuit disconnection device 40. The plug is located on the left side of the valve port.

[0038] The conveying device 20 is used to configure the clamp body 10 and transport the clamp body 10 linearly to the inspection position. In some embodiments, the conveying device 20 includes: a connecting assembly and a conveying cylinder 203. The connecting assembly is connected to the clamp body 10. The conveying cylinder 203 is connected to the connecting assembly to drive the cylinder connecting assembly to reciprocate along the horizontal and longitudinal straight lines. After the relay valve 100 on the clamp body 10 is inspected, the conveying cylinder 203 can move the clamp body 10 to the position of another relay valve 100 to be inspected, thereby replacing the next relay valve 100 to be inspected, thereby improving the efficiency of transporting the relay valve 100. In some embodiments, the connecting assembly includes a floating joint 201 and a cylinder connecting seat 202. The floating joint 201 is installed on the telescopic rod of the conveying cylinder 203. The cylinder connecting seat 202 connects the floating joint 201 to the main body of the clamp body 10. In some embodiments, two parallel and spaced guide rails 204 extending along a horizontal longitudinal line are mounted on the top surface of the horizontal support plate of the second support portion 702. Two parallel and spaced slides are mounted on the bottom surface of the main body of the clamp body 10, each of which is slidably connected to a corresponding guide rail 204. In some embodiments, the delivery cylinder 203 is mounted on the back panel of the third support portion 703.

[0039] The limiting device 30 is capable of positioning the clamp body 10 in the detection position. In some embodiments, in addition to the aforementioned limiting pin 301, the limiting device 30 also includes a limiting cylinder 302 connected to the limiting pin 301 and moving the limiting pin 301 vertically (in the height direction). The horizontal support plate of the second support portion 702 has a through-hole for the limiting pin 301 to pass through. When the clamp body 10 is in the non-detection position, the limiting cylinder 302 controls the limiting pin 301 to be positioned below the plate-shaped area of ​​the main body of the clamp body 10. In some embodiments, the limiting cylinder 302 is mounted on the first support portion 701.

[0040] The circuit-breaking device 40 performs power-on detection on the relay valve 100; in some embodiments, the circuit-breaking device 40 includes: a copper core 401, a wire 402 and an electric cylinder 403 assembly, the wire 402 electrically connecting the copper core 401 to the power supply, and the electric cylinder 403 assembly drives the copper core 401 to contact with the plug of the relay valve 100 and form a stable power-on fit. In some embodiments, the electric cylinder 403 assembly includes an electric cylinder 403, a guide rod 404 and a movable block 405. The electric cylinder 403 is installed on the horizontal top plate 7031 of the third support part 703. The horizontal top plate 7031 has guide holes 70311 located on the left and right sides of the electric cylinder 403. The inner wall of the guide hole 70311 of the horizontal top plate 7031 has a guide sleeve 406. The movable block 405 is located below the horizontal top plate 7031. The movable block 405 is connected to the telescopic rod of the electric cylinder 403 through a floating joint 409. There are two guide rods 404, both of which are vertically, spaced and arranged in parallel. The lower end of each guide rod 404 is connected to the top of the movable block 405, and the upper end passes through the guide sleeve 406 and extends to the top of the horizontal top plate 7031. The copper core 401 is installed on the movable block 405. In some embodiments, the copper core 401 is vertically movably mounted on the movable block 405 via a copper sleeve 407. At least a portion of the copper sleeve 407 is embedded within the movable block 405. A spring 408 extending vertically is disposed within the copper sleeve 407. The spring 408 is located along the vertical motion path of the copper core 401. When the electric cylinder 403 is energized, the movable block 405 is driven downward, and the guide rod 404 moves downward along the axial direction of the guide sleeve 406. When the copper core 401 descends to a certain position, it contacts the plug of the relay valve 100, depressing the spring 408 and applying current and voltage for testing. In some embodiments, the circuit breaker 400 can also be energized by a solenoid valve.

[0041] The air circuit opening and closing device 50 is used to seal the valve port of the relay valve 100; in some embodiments, each air circuit opening and closing device 50 includes: a sealing joint 501 and a clamping cylinder 502, the clamping cylinder 502 is connected to the sealing joint 501 to drive the sealing joint 501 to move horizontally and be able to move to dock with the valve port of the relay valve 100, completing the preparation for the sealing test of the relay valve 100. When working, first, 0.7Mpa air pressure is introduced into the clamping cylinder 502 and the power cylinder 403 on the horizontal top plate 7031 of the first support part 701 to press the product (relay valve 100) from the top, and then 0.7Mpa air pressure is introduced into the other two clamping cylinders 502 to press the product from the side, and finally the silencer 60 (in one embodiment, the silencer 60 also adopts a combination of a cylinder and a silencer component to achieve a silencer effect) is pressed.

[0042] When the clamp body 10 is in the detection position and the relay valve 100 is in the detection state, the limiting device 30 and the clamp body 10 form a temporary position maintaining structure (that is, the limiting pin 301 of the limiting device 30 passes through the through hole of the second support part 702 and is embedded in the limiting hole 101 of the main part of the clamp body 10), and the air path opening and closing device 50 and the relay valve 100 are in a docking and sealing state.

[0043] When the relay valve detection mechanism is working, the product is first placed on the clamp body 10 and started. The conveying device 20 conveys the clamp body 10 to the detection position. The limit cylinder 302 positions and limits the clamp body 10 through the limit pin 301. The air path switching device 50 and the circuit switching device 40 are started and tightened; the silencer 60 is started and tightened; the air pressure is introduced according to the product requirements, and the voltage of 12V or 24V is introduced. The test is carried out according to the product regulations. The noise at the exhaust port is reduced from 90 decibels to 65 decibels through the silencer 60.

[0044] The relay valve detection mechanism performs inspections on the relay valve 100 and integrates the functional modules required for the inspection process, such as the clamp body 10, conveying device 20, circuit switching device 40, and air path switching device 50, to achieve an integrated inspection structure. This improves product inspection efficiency, especially for short-term batch inspections of the relay valve 100, saving labor costs. The relay valve detection mechanism uses the conveying device 20 to automatically and linearly transport the clamp body 10 to the inspection position, simplifying the operation process and improving inspection efficiency. It is suitable for high-frequency, batch inspection scenarios. The relay valve detection mechanism uses a positioning device to accurately position the clamp body 10 to the inspection position and forms a temporary position-holding structure with the clamp body 10, effectively preventing displacement and vibration during the inspection process, ensuring the position stability of the relay valve 100 during inspection, and improving inspection accuracy. When the relay valve 100 is in the inspection state, the air path switching device 50 docks and seals with the relay valve 100, ensuring that the air path switching test is performed in an airtight environment, thereby improving the reliability and consistency of the inspection results and reducing the false detection rate. The relay valve detection mechanism realizes the power-on detection of the relay valve 100 through the circuit on-off device 40, can accurately judge the electrical performance of the relay valve 100, reduce manual intervention, and realize highly automated detection. Based on the above design, the detection quality stability of the relay valve 100 is enhanced.

[0045] The above description is merely a preferred embodiment of one or more embodiments of the present invention and is not intended to limit one or more embodiments of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of one or more embodiments of the present invention shall be included in the scope of protection of one or more embodiments of the present invention.

Claims

1. Relay valve detection mechanism, characterized in that: include: A clamp body for clamping a relay valve; a conveying device for arranging the clamp body and transporting the clamp body in a straight line to a detection position; A limiting device capable of positioning the clamp body at the detection position; A circuit on-off device for detecting the power supply of the relay valve; An air circuit on-off device for sealing the valve port of the relay valve; as well as When the clamp body is located at the detection position and the relay valve is in the detection state, the limiting device and the clamp body form a temporary position maintaining structure, and the air path on-off device and the relay valve are in a docking and sealing state.

2. The relay valve detection mechanism according to claim 1, characterized in that: The main body of the clamp body has a plate-shaped area and the plate-shaped area has a limiting hole. The limiting device includes a limiting pin that cooperates with the limiting hole of the clamp body to limit the position.

3. The relay valve detection mechanism according to claim 1, characterized in that: The conveying device comprises: a connecting assembly connected to the clamp body; A delivery cylinder driving the connecting assembly to move along a horizontal longitudinal straight line is connected to the connecting assembly.

4. The relay valve detection mechanism according to claim 2, characterized in that: The limiting device further includes: a limiting cylinder connected to the limiting pin and moving the limiting pin in a vertical direction.

5. The relay valve detection mechanism according to claim 2, characterized in that: The number of the gas path on-off devices is three.

6. The relay valve detection mechanism according to claim 5, characterized in that: Each of the gas path on-off devices comprises: Sealing joints; and The sealing joint is driven to move horizontally and laterally to a clamping cylinder that is docked with the relay valve and is connected to the sealing joint.

7. The relay valve detection mechanism according to claim 1, characterized in that: The circuit breaking device comprises: Copper core; A wire electrically connecting the copper core to a power source, and An electrified cylinder assembly drives the copper core to cooperatively contact the plug of the relay valve.

8. The relay valve detection mechanism according to claim 1, characterized in that: Also includes: A silencing device is provided for silencing the exhaust port of the relay valve.

9. The relay valve detection mechanism according to claim 8, characterized in that: Also includes: A bracket for configuring the conveying device, the limiting device, the circuit switching device, the gas path switching device and the silencer.

Images