Air release valve detection device for F8 type air distribution valve

Abstract

The utility model provides a vent valve detection device for an F8 type air distribution valve, which comprises an outer sleeve, a detection block and a positioning block, one end of the detection block penetrates through the inner side of one end of the outer sleeve in a sliding manner, the positioning block is separably arranged on the inner side of the other end of the outer sleeve, a compression spring is arranged in the outer sleeve, and one end of the compression spring is connected with the detection block. The other end of the compression spring is connected with the positioning block, the other end of the detection block is separably arranged on the inner side of a valve port of the vent valve in a penetrating mode, the outer side of one end of the outer sleeve is separably connected with the edge of a boss of the vent valve in an abutting mode, and the detection block comprises a sliding rod with one end slidably arranged on the inner side of the outer sleeve in a penetrating mode and a detection column connected with the other end of the sliding rod. The detection column is separably arranged on the inner side of the valve port of the vent valve in a penetrating mode. The vent valve detection device for the F8 type air distribution valve not only can detect the inner diameter of the valve port and the boss of the vent valve, but also can correct the contraction deformation of the boss, thereby improving the detection effect of the vent valve.

Description

Technical Field

[0001] The utility model belongs to the technical field of valve detection devices, in particular to an air vent valve detection device for an F8 type air distribution valve. Background Art

[0002] The F8 air distribution valve is an important brake accessory in the passenger car braking system. It controls the vehicle's inflation, braking, pressure maintenance, relief, emergency braking, etc. The F8 air distribution valve consists of three parts: the main valve, the intermediate body (pipe seat), and the auxiliary valve. The vent valve is an important part of the auxiliary valve. When the train is in emergency braking, the train pipe pressure air under the auxiliary piston is reduced through the vent valve, and the pressure difference pushes the piston downward to open the vent valve. At this time, the pressure air of the train pipe is discharged into the atmosphere through the vent valve. After the pressure air in the auxiliary chamber is exhausted, the spring in the vent valve pushes the piston to reset and close the vent valve. The inner diameter of the valve port of the vent valve directly affects the movement of the piston. If the valve port is too small, the piston will be stuck. Since the edge of the valve port of the vent valve is provided with a boss, the boss is relatively weak. After the boss shrinks and deforms during processing and transportation, the piston will also be stuck in the vent valve, which affects the operation of the air distribution valve and seriously affects driving safety. Therefore, the inner diameter of the valve port and the boss of the vent valve should be tested to ensure that the size meets the use requirements.

[0003] The existing vent valve does not have a dedicated size detection tool. If a common measuring device such as a steel ruler or a vernier caliper is used for detection, it is very inconvenient. This solution solves the technical problem of size detection of the vent valve for the F8 air distribution valve. Utility Model Content

[0004] The purpose of the utility model is to provide a vent valve detection device for an F8 type air distribution valve, which solves the technical problem of size detection of the vent valve for an F8 type air distribution valve. It can not only detect the valve port inner diameter and the boss of the vent valve, but also correct the shrinkage deformation of the boss, thereby improving the detection effect of the vent valve.

[0005] A vent valve detection device for an F8 type air distribution valve comprises an outer sleeve, a detection block with one end slidingly inserted into the inner side of one end of the outer sleeve, and a detachable positioning block detachably arranged on the inner side of the other end of the outer sleeve, a compression spring is arranged in the outer sleeve, one end of the compression spring is connected to the detection block, the other end of the compression spring is connected to the positioning block, the other end of the detection block is detachably inserted into the inner side of the valve port of the vent valve, and the outer side of one end of the outer sleeve is detachably abutted against the edge of the boss of the vent valve.

[0006] The detection block includes a sliding rod with one end slidingly inserted into the inner side of the outer sleeve, and a detection column connected to the other end of the sliding rod, wherein the detection column is detachably inserted into the inner side of the valve port of the vent valve, and one end of the sliding rod is connected to the compression spring;

[0007] The outer diameter of one end of the outer sleeve is smaller than the outer diameter of the detection column, the outer diameter of the middle portion of the outer sleeve is larger than the outer diameter of the detection column, and the outer diameter of the outer sleeve gradually increases from one end to the middle portion.

[0008] The inner side of the other end of the outer sleeve is provided with an internal thread, the outer side of the positioning block is provided with an external thread, and the positioning block is threadedly connected with the outer sleeve.

[0009] The outer side of the middle part of the outer sleeve is provided with knurling, and the other end of the outer sleeve is provided with a rounded corner.

[0010] One end of the slide bar and one side of the positioning block are both provided with hooks, and the slide bar and the positioning block are connected to the compression spring via the hooks.

[0011] The other side of the positioning block is provided with a slotted groove or a cross slot matching a screwdriver.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] (1) A detection block is slidably arranged in the outer sleeve, and the vent valve is detected through the detection column of the detection block, and the boss of the vent valve is calibrated through the outer sleeve. The detection and calibration of the vent valve can be completed by inserting the detection device into the valve port of the vent valve once, and the detection and calibration of the vent valve are convenient and quick;

[0014] (2) The outer diameter of the outer sleeve gradually expands from one end to the middle, and the boss is gradually expanded and corrected through the outer sleeve, making the correction of the boss more convenient and safer;

[0015] (3) The elastic force of the compression spring is adjusted by the positioning block to adjust the impact of the detection column on the vent valve, making the detection of the vent valve safer. At the same time, the positioning block is connected to the slide rod through the compression spring to prevent the slide rod from falling out of the outer sleeve, making the detection device more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structural decomposition of the utility model.

[0017] Figure 2 It is a side view of the utility model.

[0018] Figure 3 It is a schematic diagram of the combined structure of the utility model and the air release valve.

[0019] Among them, in the figure: 1, outer sleeve; 11, knurling; 2, detection block; 21, sliding rod; 211, hook; 22, detection column; 3, positioning block; 4, compression spring; 5, vent valve; 51, valve port; 52, boss. DETAILED DESCRIPTION

[0020] In order to more clearly illustrate the technical features of this solution, this solution is described below through specific implementation methods.

[0021] See also Figure 1-Figure 3 A vent valve detection device for an F8 type air distribution valve comprises an outer sleeve 1, a detection block 2 with one end slidingly penetrated on the inner side of one end of the outer sleeve 1, and a positioning block 3 detachably arranged on the inner side of the other end of the outer sleeve 1. A compression spring 4 is arranged in the outer sleeve 1, one end of the compression spring 4 is connected to the detection block 2, and the other end of the compression spring 4 is connected to the positioning block 3. The other end of the detection block 2 is detachably penetrated on the inner side of a valve port 51 of the vent valve 5, and the outer side of one end of the outer sleeve 1 is detachably abutted against the edge of a boss 52 of the vent valve 5.

[0022] The detection block 2 includes a slide rod 21 with one end slidingly penetrated inside the outer sleeve 1, and a detection column 22 connected to the other end of the slide rod 21. The detection column 22 is detachably penetrated inside the valve port 51 of the vent valve 5. The end of the detection column 22 away from the outer sleeve 1 is provided with a rounded corner, and one end of the slide rod 21 is connected to the compression spring 4.

[0023] The outer diameter of one end of the outer sleeve 1 is smaller than the outer diameter of the detection column 22, the outer diameter of the middle part of the outer sleeve 1 is larger than the outer diameter of the detection column 22, and the outer diameter of the outer sleeve 1 gradually increases from one end to the middle part, see Figure 2 , where c>b>a.

[0024] An internal thread is arranged on the inner side of the other end of the outer sleeve 1 , and an external thread is arranged on the outer side of the positioning block 3 . The positioning block 3 is threadedly connected to the outer sleeve 1 .

[0025] A knurling 11 is provided on the outer side of the middle portion of the outer sleeve 1 , and a rounded corner is provided on the other end of the outer sleeve 1 .

[0026] A hook portion 211 is provided at one end of the slide bar 21 and at one side of the positioning block 3 , and the slide bar 21 and the positioning block 3 are connected to the compression spring 4 via the hook portion 211 .

[0027] The other side of the positioning block 3 is provided with a slot or a cross slot matching a screwdriver.

[0028] The specific working process of this utility model:

[0029] Before use, use a screwdriver to adjust the position of the positioning block 3 in the outer sleeve 1, so that when the compression spring 4 is freely drooping under the gravity of the detection block 2, the distance between the detection column 22 and the outer sleeve 1 is greater than the height of the boss 52, that is, at this time, the outer sleeve 1 is not in contact with the boss 52;

[0030] When in use, hold the knurled part 11 of the outer sleeve 1 and insert the detection column 22 into the inner side of the valve port 51 through the boss 52. At this time, the following situation occurs:

[0031] Case 1: If the detection column 22 passes through the boss 52 smoothly and completely falls into the inner side of the valve port 51, it means that the boss 52 has not shrunk and deformed, and the inner diameter of the valve port 51 meets the use requirements, and the vent valve 5 is qualified;

[0032] Scenario 2: If the detection column 22 passes through the boss 52 smoothly, but does not completely fall into the inner side of the valve port 51, or cannot move smoothly in the valve port 51, it means that the inner diameter of the valve port 51 does not meet the use requirements, the vent valve 5 is unqualified, and the vent valve 5 is discarded;

[0033] Since the boss 52 does not shrink or deform in the above two situations, the detection column 22 passes through the boss 52 smoothly. Therefore, the outer sleeve 1 can detect the size of the valve port 51 through the detection column 22 without contacting the boss 52, and there is no need to correct the boss 52 through the outer sleeve 1.

[0034] Scenario 3: If the detection column 22 cannot pass through the boss 52 smoothly, it means that the boss 52 has contracted and deformed. By holding the outer sleeve 1 to overcome the elastic force of the compression spring 4, the outer sleeve 1 is brought into contact with the detection column 22, and the boss 52 is opened by the detection column 22. The elastic force of the compression spring 4 allows the detection column 22 to be inserted into the valve port 51. If the detection column 22 still cannot smoothly fall into the inner side of the valve port 51 at this time, it means that the inner diameter of the valve port 51 does not meet the use requirements, and the vent valve 5 is discarded; if the detection column 22 can move smoothly inside the valve port 51, it means that the size of the valve port 51 meets the use requirements. Then continue to press and insert the outer sleeve 1 downward so that one end of the outer sleeve 1 is inserted into the inner side of the boss 52. Since the outer diameter of one end of the outer sleeve 1 is smaller than the outer diameter of the detection column 22, the middle outer diameter of the outer sleeve 1 is larger than the outer diameter of the detection column 22, and the outer diameter of the outer sleeve 1 gradually expands from one end to the middle, the boss 52 can be expanded and corrected by the outer sleeve 1 by inserting the outer sleeve 1. After the boss 52 is corrected, the detection column 22 is pulled out, and the detection column 22 can pass through the boss 52 smoothly. At this time, the detection and correction of the vent valve 5 are completed, the vent valve 5 is corrected, and the vent valve 5 is used.

[0035] The detection block 2 is slidably arranged in the outer sleeve 1, and the vent valve 5 is detected by the detection block 2, and the boss 52 of the vent valve 5 is expanded and corrected by the outer sleeve 1. By inserting the detection device into the inner side of the valve port 51 once, the detection and correction of the vent valve 5 can be completed. The detection device has a multifunctional effect, and the detection of the vent valve 5 is convenient and quick;

[0036] The elastic force of the compression spring 4 can be adjusted through the positioning block 3 to adjust the impact of the detection column 22 in the detection block 2 on the vent valve 5, so that the detection of the vent valve 5 is safer. At the same time, the hook 211 of the positioning block 3 is connected to the hook 211 of the slide rod 21 through the compression spring 4, which prevents the slide rod 21 from falling out of the outer sleeve 1. There is no need to reassemble during detection, and the detection device is more convenient to use.

[0037] The outer diameter of the outer sleeve 1 gradually expands from one end to the middle, and the boss 52 is gradually expanded and corrected by the outer sleeve 1, so the correction of the boss 52 is more convenient and safe.

[0038] Technical features not described in the present invention can be achieved through or by adopting existing technologies, and will not be elaborated here. Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the present invention should also fall within the scope of protection of the present invention.

Claims

1. A vent valve detection device for an F8 type air distribution valve, characterized in that: The invention comprises an outer sleeve (1), a detection block (2) with one end slidingly inserted into the inner side of one end of the outer sleeve (1), and a positioning block (3) detachably arranged on the inner side of the other end of the outer sleeve (1); a compression spring (4) is arranged inside the outer sleeve (1); one end of the compression spring (4) is connected to the detection block (2), and the other end of the compression spring (4) is connected to the positioning block (3); the other end of the detection block (2) is detachably inserted into the inner side of the valve port (51) of the air vent valve (5); and the outer side of one end of the outer sleeve (1) is detachably abutted against the edge of the boss (52) of the air vent valve (5).

2. The vent valve detection device for F8 type air distribution valve according to claim 1 is characterized in that: The detection block (2) comprises a sliding rod (21) with one end slidably inserted into the inner side of the outer sleeve (1), and a detection column (22) connected to the other end of the sliding rod (21); the detection column (22) is detachably inserted into the inner side of the valve opening (51) of the air release valve (5); one end of the sliding rod (21) is connected to the compression spring (4); The outer diameter of one end of the outer sleeve (1) is smaller than the outer diameter of the detection column (22), the outer diameter of the middle portion of the outer sleeve (1) is larger than the outer diameter of the detection column (22), and the outer diameter of the outer sleeve (1) gradually increases from one end to the middle portion.

3. The vent valve detection device for F8 type air distribution valve according to claim 2 is characterized in that: An internal thread is provided on the inner side of the other end of the outer sleeve (1), an external thread is provided on the outer side of the positioning block (3), and the positioning block (3) is threadedly connected to the outer sleeve (1).

4. The vent valve detection device for F8 type air distribution valve according to claim 3 is characterized in that: The outer side of the middle portion of the outer sleeve (1) is provided with knurling (11), and the other end of the outer sleeve (1) is provided with a rounded corner.

5. The vent valve detection device for F8 type air distribution valve according to claim 4 is characterized in that: One end of the sliding rod (21) and one side of the positioning block (3) are both provided with a hook portion (211), and the sliding rod (21) and the positioning block (3) are connected to the compression spring (4) via the hook portion (211).

6. The vent valve detection device for F8 type air distribution valve according to claim 5 is characterized in that: The other side of the positioning block (3) is provided with a slotted groove or a cross slot matching a screwdriver.

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