Non-damage detection device for flip cover of one-way valve

Abstract

The utility model discloses a non-damage detection device for a one-way valve flip cover, which comprises a mounting seat connected with the tail end of a one-way valve, and a sensor and a blowing device which are arranged on the mounting seat, and the sensor penetrates through the front end of the mounting seat and the one-way valve and is close to a cover body of the one-way valve. An air outlet of the blowing device penetrates through the front end of the mounting seat and the one-way valve and is close to a cover body of the one-way valve. The whole detection process does not need manual visual and manual detection, the cover body can be detected in a non-contact mode, the cover body cannot be damaged, whether the cover body exists or not and whether the function is normal or not can be automatically and accurately detected, and the cover body detection device has the advantages of being simple in structure, accurate in detection, convenient and rapid.

Description

Technical Field

[0001] The utility model relates to a detection device, in particular to a non-destructive detection device for a one-way valve flip cover. Background Art

[0002] In order to prevent the backflow of fuel and meet the requirements of evaporative emissions, a one-way valve needs to be installed at the fuel filling port. The existing one-way valve is provided with a cover that can be opened and closed automatically. The cover allows fuel and fuel vapor to enter the fuel tank only from the outside. However, since the one-way valve is welded to the fuel tank by welding equipment. During the welding process, the cover of the one-way valve may be damaged and lose its function. In addition, after the one-way valve is installed in the fuel tank, it cannot be removed, and it is impossible to confirm whether the cover is functioning normally from the outside.

[0003] The existing detection method is to use a metal rod to push the cover open for multiple times, but this method has the following disadvantages: 1. The metal rod is relatively hard and can easily damage the cover when it is pushed open; 2. A rubber seal is provided on the cover to prevent oil and gas leakage, but the front end of the metal rod can easily cause the seal to fall off or break, affecting the sealing of the one-way valve. Therefore, a detection device is needed to detect whether the cover exists and whether it functions normally without causing damage to the cover. Utility Model Content

[0004] The purpose of the utility model is to provide a non-destructive detection device for a one-way valve cover with a simple structure, accurate detection, and convenient and quick detection. The detection device can detect the cover body without contact, will not cause damage to the cover body, and can automatically and accurately detect whether the cover body exists and whether the function is normal.

[0005] The purpose of the utility model can be achieved by adopting the following technical solutions:

[0006] A non-destructive detection device for a one-way valve flip cover comprises a mounting seat connected to the tail end of the one-way valve, and a sensor and an air blowing device mounted on the mounting seat, wherein the sensor passes through the front end of the mounting seat and the one-way valve and is close to the cover body of the one-way valve, and the air outlet of the air blowing device passes through the front end of the mounting seat and the one-way valve and is close to the cover body of the one-way valve.

[0007] As a preferred solution, the front end of the mounting seat is provided with a mounting groove for interconnection with the tail end of the one-way valve; the sensor passes through the mounting groove and is close to the cover body of the one-way valve, and the air outlet of the blowing device passes through the mounting groove and is close to the cover body of the one-way valve.

[0008] As a preferred solution, when the air blowing device is not working, the cover is closed and the sensor detects the cover.

[0009] As a preferred solution, when the air blowing device blows the cover body to an open state, the sensor cannot detect the cover body.

[0010] As a preferred solution, the blowing device includes an air pump and an air pipe, one end of the air pipe is connected to the air outlet of the air pump, and the other end of the air pipe passes through the mounting seat and is close to the cover of the one-way valve.

[0011] As a preferred solution, the air pipe includes a vertical section and a horizontal section, one end of the vertical section is connected to the air outlet of the air pump, the other end of the vertical section is connected to one end of the horizontal section, and the other end of the horizontal section passes through the mounting seat and is close to the cover of the one-way valve.

[0012] As a preferred solution, the sensor is a laser sensor.

[0013] The implementation of this utility model has the following beneficial effects:

[0014] When the utility model is working, the entire detection process does not require manual visual and manual inspection, and the cover body can be inspected without contact, without causing damage to the cover body, and can automatically and accurately detect whether the cover body exists and whether the function is normal. It has the advantages of simple structure, accurate detection, and convenience and speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 The present invention is a structural schematic diagram showing that the cover of a one-way valve at a fuel filling port of an existing fuel tank is in a closed state.

[0017] Figure 2 The present invention is a structural schematic diagram showing that the cover of a one-way valve at a fuel filling port of an existing fuel tank is in an open state.

[0018] Figure 3 The utility model is a schematic diagram of the connection structure of the non-destructive detection device of the one-way valve flip cover and the one-way valve. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] Example

[0021] Reference Figures 1 to 3 This embodiment relates to a detection device, including a mounting base 1 for connecting to the rear end of a one-way valve 100, and a sensor 2 and a blowing device 3 mounted on the mounting base 1, wherein the sensor 2 passes through the front end of the mounting base 1 and the one-way valve 100, and the sensor 2 is close to the cover 101 of the one-way valve 100, and the air outlet of the blowing device 3 passes through the front end of the mounting base 1 and the one-way valve 100 and is close to the cover 101 of the one-way valve 100. When the blowing device 3 is not working, the cover 101 is closed, and the sensor 2 detects the cover 101. When the blowing device 3 blows the cover 101 to an open state, the sensor 2 cannot detect the cover 101.

[0022] When installing the one-way valve 100 to the mounting base 1, connect the tail end of the one-way valve 100 to the mounting base 1. At this time, the air outlet of the sensor 2 and the blowing device 3 installed at the front end of the mounting base 1 approaches the direction of the cover body 101 through the central axis hole of the one-way valve 100; finally, the air outlet of the sensor 2 and the blowing device 3 does not contact the cover body 101. When working, the working steps of the present invention are as follows: 1. The controller detects whether the cover body 101 exists through the sensor 2. If the cover body 101 cannot be detected, the controller issues an alarm prompt; if the sensor 2 detects that the cover body 101 exists, proceed to the next step;

[0023] 2. Start the blowing device 3, and the sensor 2 detects whether the cover 101 exists. If the cover 101 is detected, it proves that the flip cover cannot be opened, and the controller issues an alarm prompt; if the cover 101 is not detected, proceed to the next step;

[0024] 3. The blowing device 3 stops blowing, and the sensor 2 detects whether the cover 101 exists; if no detection is made, it proves that the cover 101 has not closed automatically, the cover 101 functions abnormally, and the controller issues an alarm; if it exists, it proves that the flip cover has closed automatically and functions normally.

[0025] The entire detection process of the detection device does not require manual visual and manual inspection, and can detect the cover body 101 without contact, will not cause damage to the cover body 101, and can automatically and accurately detect whether the cover body 101 exists and whether the function is normal. It has the advantages of simple structure, accurate detection, and convenience and speed.

[0026] The front end of the mounting seat 1 is provided with a mounting groove 11 for interconnecting with the rear end of the one-way valve 100; the sensor 2 passes through the mounting groove 11 and is close to the cover 101 of the one-way valve 100, and the air outlet of the blowing device 3 passes through the mounting groove 11 and is close to the cover 101 of the one-way valve 100. The rear end of the one-way valve 100 is inserted into the mounting groove 11 and tightened, so that the one-way valve 100 is fixed on the mounting seat 1. Of course, other methods can be used for fixing the mounting seat 1 and the one-way valve 100, such as threaded connection, clamping method, etc.

[0027] The blowing device 3 includes an air pump (not shown) and an air pipe 32, one end of the air pipe 32 is connected to the air outlet of the air pump, and the other end of the air pipe 32 passes through the mounting seat 1 and is close to the cover 101 of the one-way valve 100. The air pump outputs high-pressure gas. The high-pressure gas acts on the cover 101; if the opening function of the cover 101 is normal, the high-pressure gas will push the cover 101 to open, so that the sensor 2 cannot detect the existence of the cover 101; otherwise, the cover 101 cannot be opened, indicating that the opening function of the cover 101 is abnormal.

[0028] The air pipe 32 includes a vertical section 321 and a horizontal section 322. One end of the vertical section 321 is connected to the air outlet of the air delivery pump, and the other end of the vertical section 321 is connected to one end of the horizontal section 322. The other end of the horizontal section 322 passes through the mounting seat 1 and is close to the cover 101 of the one-way valve 100. One end of the vertical section 321 vertically extends out of the mounting seat 1 and is externally connected to the delivery pump, and the other end passes through the horizontal section 322 and is close to the cover 101.

[0029] The sensor 2 is a laser sensor. Of course, other sensors 2 capable of detecting the position of the cover 101 are also applicable to the present invention.

[0030] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the claims of the present invention are still within the scope covered by the present invention.

Claims

1. A non-destructive detection device for a one-way valve flap, characterized in that: It includes a mounting seat for connecting to the tail end of the one-way valve, and a sensor and a blowing device installed on the mounting seat. The sensor passes through the front end of the mounting seat and the one-way valve and is close to the cover body of the one-way valve. The air outlet of the blowing device passes through the front end of the mounting seat and the one-way valve and is close to the cover body of the one-way valve.

2. A non-destructive detection device for a one-way valve cover according to claim 1, characterized in that: The front end of the mounting seat is provided with a mounting groove for interconnection with the rear end of the one-way valve; the sensor passes through the mounting groove and is close to the cover of the one-way valve, and the air outlet of the blowing device passes through the mounting groove and is close to the cover of the one-way valve.

3. A non-destructive detection device for a one-way valve flap according to claim 1 or 2, characterized in that: When the air blowing device is not working, the cover is closed and the sensor detects the cover.

4. A non-destructive detection device for a one-way valve flap according to claim 1 or 2, characterized in that: When the air blowing device blows the cover body to the open state, the sensor cannot detect the cover body.

5. The non-destructive detection device for a one-way valve cover according to claim 1, characterized in that: The air blowing device comprises an air delivery pump and an air pipe, one end of the air pipe is connected to the air outlet of the air delivery pump, and the other end of the air pipe passes through the mounting seat and is close to the cover of the one-way valve.

6. A non-destructive detection device for a one-way valve cover according to claim 5, characterized in that: The air pipe includes a vertical section and a horizontal section, one end of the vertical section is connected to the air outlet of the air pump, the other end of the vertical section is connected to one end of the horizontal section, and the other end of the horizontal section passes through the mounting seat and is close to the cover of the one-way valve.

7. The non-destructive detection device for a one-way valve cover according to claim 1, characterized in that: The sensor is a laser sensor.

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