Engine hood umbrella valve detection device

Abstract

The utility model discloses an engine cover umbrella valve detection device, which comprises a positioning carrying platform and a detection platform matched with the positioning carrying platform, the detection platform comprises a shell, a floating connecting piece, a plugging head and a cylinder, a floating space is concavely arranged in the shell, the floating connecting piece is arranged in the floating space and can horizontally float relative to the shell, and the plugging head is arranged in the floating space. The top end of the floating connecting piece protrudes out of a top opening of the floating space, the plugging head is fixedly arranged at the top end of the floating connecting piece, a sealing ring is arranged in the plugging head, and a detection gas circuit communicated with the plugging head is arranged in the floating connecting piece. One side of the floating connecting piece is provided with a connecting port communicated with the detection gas circuit, the connecting port is connected with an airtight detector, and the bottom of the shell is fixedly arranged on the cylinder and is driven by the cylinder to move up and down, so that the plugging head is in butt joint with a product provided with an umbrella valve. And the air tightness detector is communicated to carry out sealing detection. According to the scheme, whether the umbrella valve exists or not is judged through air tightness detection, and convenience and high efficiency are achieved.

Description

Technical Field

[0001] This utility model relates to the technical field of engine testing devices, and specifically to an engine cover umbrella valve testing device. Background Technology

[0002] The fuel reservoir is a crucial component of a car's fuel supply system, installed inside the fuel tank. It stores fuel; when the fuel pump operates, fuel flows from the tank through the umbrella valve into the reservoir, and then from the reservoir into the fuel supply lines. When the fuel pump stops operating, the umbrella valve closes and seals the reservoir, storing fuel for rapid fuel delivery to the engine the next time the fuel pump starts. The umbrella valve is an essential component for sealing the reservoir and is usually pre-installed within the product housing, shipped as a semi-finished product to facilitate subsequent assembly. However, because the umbrella valve is located inside the plug, its installation cannot be visually detected externally. A missing umbrella valve can pose significant safety hazards and cause malfunctions. Therefore, finding a simple and effective way to check the proper installation of the umbrella valve is a pressing issue that needs to be addressed. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the existing technology and provide an engine cover umbrella valve detection device.

[0004] The objective of this utility model is achieved through the following technical solution:

[0005] An engine hood umbrella valve testing device includes a positioning platform and a testing platform that cooperates with it. The testing platform includes a housing, a floating connector, a sealing head, and a cylinder. The housing has a recessed floating space. The floating connector is disposed within the floating space and can float horizontally relative to the housing. The top of the floating connector protrudes outward from the top opening of the floating space, and the sealing head is fixedly mounted on the top of the floating connector. The sealing head has a built-in sealing ring. The floating connector has a testing air passage that communicates with the sealing head. One side of the floating connector has a connection port that communicates with the testing air passage. The connection port is connected to an airtightness detector. The bottom of the housing is fixed to the cylinder and is driven by the cylinder to move up and down, so that the sealing head aligns with the product equipped with the umbrella valve to connect with the airtightness detector for sealing testing.

[0006] Preferably, the outer shell is composed of a shell and a cover. The shell has a recessed limiting groove, the top opening is located at the center of the cover, and the maximum width of the top opening is less than the maximum width of the limiting groove. The cover is placed on the shell to form the floating space between the cover and the limiting groove.

[0007] Preferably, the top inner diameter of the limiting groove is larger than the bottom, and a first step surface is formed between the two, and a groove is formed between the first step surface and the cover body, and the edge of the floating connector is floatingly clamped in the groove.

[0008] Preferably, a thrust bearing is arranged in the bottom of the limiting groove, the bottom of the floating connector is inserted into the thrust bearing, the surface of the thrust bearing is higher than the first step surface, and the bottom surface of the edge is slidingly connected with the surface of the thrust bearing to horizontally float in the groove.

[0009] Preferably, a second step surface is arranged on the edge, the second step surface is protruded into the top opening, and the outer diameter of the second step surface is smaller than the top opening to relatively float in the top opening.

[0010] Preferably, the cross sections of the floating space and the floating connector are circular, so that the floating connector can horizontally float in all directions in the floating space.

[0011] Preferably, the top end of the floating connector has a circular protruding rib, a limiting groove is formed between the protruding rib and the inner wall of the plugging head, and the sealing ring is embedded in the limiting groove.

[0012] Preferably, the cylinder is arranged on a connecting plate, a group of guide rods are vertically arranged on the connecting plate, the shell is sleeved on the group of guide rods, a through hole is arranged on the cover body to allow the top end of the guide rod to pass out, a spring is sleeved on the top of the guide rod, and the two ends of the spring are respectively in abutment with the top end of the guide rod and the shell.

[0013] Preferably, the positioning stage comprises a stage and a group of positioning cylinders, and the group of positioning cylinders are respectively arranged on the side of the stage, the cylinder end of the positioning cylinder is provided with a positioning pressing block, and the bottom of the positioning pressing block is provided with a contact block.

[0014] Preferably, a group of positioning blocks and a group of positioning holes are arranged on the stage to position the product to be measured.

[0015] The beneficial effects of the utility model mainly include:

[0016] 1. The sealing head connected with the product can be connected with the air tightness detector, the existence of the umbrella valve is judged by the air tightness detection, which is convenient and efficient, the air tightness of the umbrella valve itself can be detected at the same time, and it is ensured that the umbrella valve with sealing property is correctly installed in the product, and the sealing head has the horizontal floating degree by the horizontal floating floating connecting piece of the detection table, on the one hand, the sealing head can be quickly connected with the port of the product by the horizontal floating, and the connection efficiency is improved; on the other hand, the tolerance problem between the product and the sealing head can be eliminated, and the risk of connection failure between the sealing head and the product is avoided.

[0017] 2. The shell is sleeved on a group of guide rods, and a spring is arranged at the top of the guide rod to be connected with the shell, so that the shell has the elasticity of up and down floating, to avoid the hard contact between the product port and the sealing head, and avoid the wear of the product due to the umbrella valve detection. BRIEF DESCRIPTION OF DRAWINGS

[0018] The technical scheme of the utility model will be further described below in combination with the drawings:

[0019] Fig. 1 : The schematic diagram of the embodiment of the utility model;

[0020] Fig. 2 : The schematic diagram of the detection table in the embodiment of the utility model;

[0021] Fig. 3 : The sectional view of the detection table in the embodiment of the utility model. DETAILED DESCRIPTION

[0022] The utility model will be described in detail in combination with the specific implementation manner shown in the drawings. However, these implementation manners are not limited to the utility model, and the changes in structure, method or function made by the ordinary skilled in the art according to these implementation manners are also included in the protection scope of the utility model.

[0023] In the description of the scheme, it should be explained that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of description and simplification of description, and cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, structure and operation, therefore, it cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance. Moreover, in the description of the scheme, the operator is taken as the reference, the direction close to the operator is the proximal end, and the direction away from the operator is the distal end.

[0024] As Figs. 1-3The utility model discloses a kind of engine bonnet umbrella valve detection devices, including positioning platform and the detection station matched with it, the detection station includes shell 2, floating connector 3, plugging head 4 and cylinder 5, the shell 2 is recessed with floating space, the floating connector 3 is set in the floating space, and it can be horizontally floating relative to the shell 2, the top end of the floating connector 3 is protruded to the top opening 201 of the floating space, and the top end of the floating connector 3 is fixed with the plugging head 4, the plugging head 4 is built-in with a sealing ring 401, the floating connector 3 is provided with the detection gas path 300 communicated with the plugging head 4, one side of the floating connector 3 is provided with the connection port 301 communicated with the detection gas path 300, the connection port 301 is connected with airtightness detector 8, the bottom of the shell 2 is fixed on the cylinder 5 and is driven by the cylinder 5 to move up and down, so that the plugging head 4 is connected with the product with umbrella valve, to communicate the airtightness detector 8 and carry out sealing detection.

[0025] The plugging head 4 of the present scheme can be connected with the product, and the presence or absence of the umbrella valve is determined by the airtightness detector 8, which is convenient and efficient. The presence or absence of the umbrella valve can also be detected to determine whether the airtightness of the umbrella valve is effective, ensuring that the umbrella valve with sealing performance is correctly installed in the product. The floating connector 3 of the detection station can horizontally float, so that the plugging head 4 has the freedom of horizontal floating. On the one hand, the plugging head 4 can be quickly connected with the port of the product by horizontal floating, improving the connection efficiency. On the other hand, the tolerance problem between the product and the plugging head 4 can be eliminated, avoiding the risk of connection failure between the plugging head 4 and the product.

[0026] Specifically, the shell 2 is composed of a shell body 202 and a cover body 203. A limiting groove 204 is recessed in the shell body 202. The top opening 201 is formed in the center of the cover body 203, and the maximum width of the top opening 201 is smaller than the maximum width of the limiting groove 204. The cover body 203 is arranged on the shell body 202 to form the floating space between the limiting groove 204. This structure facilitates the installation of the floating connector 3. The floating space formed between the cover body 203 and the limiting groove 204 limits the floating connector 3 in the vertical direction, so that the floating connector 3 cannot float up and down. The inner contour of the floating space matches and is larger than the outer contour of the floating connector 3, so that the floating connector 3 can move horizontally in the floating space.

[0027] Further, the top inner diameter of the limiting groove 204 is larger than the bottom, and a first step surface 205 is formed between the two, and a groove is formed between the first step surface 205 and the cover 203, and the edge 302 of the floating connector 3 is floatingly clamped in the groove.

[0028] The bottom of the limiting groove 204 is internally provided with a thrust bearing 6, the bottom of the floating connector 3 is inserted into the thrust bearing 6, the surface of the thrust bearing 6 is higher than the first step surface 205, and the bottom surface of the edge 302 is in sliding connection with the surface of the thrust bearing 6 to horizontally float in the groove. The rolling connection between the thrust bearing 6 and the edge 302 can reduce the friction therebetween as much as possible, so that the floating connector 3 moves more smoothly, so that the plug 4 quickly interfaces with the product.

[0029] In order to limit the floating range of the floating connector 3, a second step surface 303 is arranged on the edge 302, the second step surface 303 is protruded into the top opening 201, and the outer diameter of the second step surface 303 is smaller than the top opening 201, so as to float relative to the top opening 201. The arrangement of the top opening 201 limits the floating range of the floating connector 3, which is beneficial to ensure the floating stability of the floating connector 3.

[0030] Further, the cross sections of the floating space and the floating connector 3 are circular, so that the floating connector 3 can horizontally float 360° in the floating space to meet the floating demand in different positions.

[0031] In order to avoid the connection port 301, a notch is arranged on one side of the shell 2 to avoid position. In other feasible embodiments, the shell 2 can also be provided with a accommodating hole matched with the connection port 301 to accommodate the connection port 301.

[0032] The top end of the floating connector 3 has a circular protruding rib 304, the protruding rib 304 and the inner wall of the plug 4 form a limiting groove, and the sealing ring 401 is embedded in the limiting groove. The port inner diameter of the plug 4 is gradually enlarged from inside to outside in a trumpet shape, so as to facilitate the interface with the product, and a limiting step surface can be formed with the inner wall to cooperate with the limiting groove to limit the position of the sealing ring 401, avoid random movement, and ensure the sealing effect of the sealing ring 401 on the product port.

[0033] Preferably, the air cylinder 5 is arranged on the connecting plate 7, and the air cylinder 5 in the present scheme is preferably a diaphragm air cylinder. A group of guide rods 701 are vertically arranged on the connecting plate 7, the shell 2 is sleeved on the group of guide rods 701, and the cover body 203 is provided with through holes 2031 through which the top ends of the guide rods 701 pass, and the top of the guide rod 701 is sleeved with a spring 702, and the two ends of the spring 702 are respectively in abutment with the top end of the guide rod 701 and the shell 202. Such a structure makes the shell 2 have elasticity of floating up and down, so as to avoid hard contact between the product port and the obturator 4, avoid wearing the product due to umbrella valve detection, and ensure the integrity of the product.

[0034] As shown in Fig. 1 The positioning platform includes a platform 101 and a group of positioning air cylinders 102, and the group of positioning air cylinders 102 are arranged at the side of the platform 101 respectively. The cylinder end of the positioning air cylinder 102 is provided with a positioning pressing block 103, and the bottom of the positioning pressing block 103 is provided with a contact block 104. The platform 101 is matched with the product to be detected, and is used for placing the product. After the product is placed on the platform 101, the positioning air cylinder 102 drives the positioning pressing block 103 to rotate, so that the contact block 104 is located above the product and is pressed down to press the product tightly, so as to stabilize and define the product on the platform 101. In order to protect the surface of the product, the bottom surface of the contact block 104 can be provided with an anti-friction layer to avoid hard contact between the contact block 104 and the product. The anti-friction layer can be a soft gasket or a soft rubber sleeve (such as a silica gel sleeve) coated on the outer surface of the contact block 104, which is not limited here.

[0035] Further, a group of positioning blocks 105 and a group of positioning holes 106 are arranged on the platform 101 to position the product to be detected. The positions of the positioning blocks 105 and the positioning holes 106 are matched with the specific structure on the product, which is not limited here.

[0036] The positioning platform and the detection table are arranged on the workbench, the air tightness detector 8 is arranged on one side of the workbench, and the detection table is preferably arranged below the platform 101.

[0037] The working principle of the device is as follows: first, the product is placed on the platform 101 and defined by the positioning air cylinder 102; then, the air cylinder 5 drives the shell 2 to move upward, so that the obturator 4 is connected with the product port; then, the air tightness detector 8 is ventilated to detect the air tightness; finally, if a seal is formed in the obturator 4, it means that an umbrella valve is arranged, and the product is determined to be qualified; if there is air leakage in the obturator 4, it means that the umbrella valve is not arranged or is unqualified, and the product is determined to be unqualified.

[0038] It should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that those skilled in the art can understand.

[0039] The above series of detailed descriptions are only specific descriptions of the feasible embodiments of the present application, and are not intended to limit the protection scope of the present application. Any equivalent embodiments or changes made without departing from the spirit of the present application should be included in the protection scope of the present application.

Claims

1. An engine hood umbrella valve detection device, characterized by: The utility model provides a positioning platform and detection platform matched with it, the detection platform includes shell (2), floating connection piece (3), stop head (4) and cylinder (5), the shell (2) recessed has floating space in, the floating connection piece (3) is set up in the floating space, and can be relative the shell (2) horizontal floating, the top end of floating connection piece (3) is convex to the top opening (201) of floating space, and the top end of floating connection piece (3) is fixed with stop head (4) on, stop head (4) is built -in with a sealing ring (401), the floating connection piece (3) is provided with the detection gas path (300) of communication with stop head (4) in, one side of floating connection piece (3) is provided with the connecting port (301) of communication with detection gas path (300), connecting port (301) is connected with air tightness detector (8), the bottom of shell (2) is fixed on cylinder (5) and is driven up and down by cylinder (5) and moves, to make stop head (4) and the product with umbrella valve butt joint, to communicate air tightness detector (8) and carry out sealing detection.

2. The hood jack valve detection apparatus of claim 1, wherein: The shell (2) is composed of a shell body (202) and a cover body (203), the shell body (202) is recessed with a limiting groove (204), the top opening (201) is opened in the center of the cover body (203), and the maximum width of the top opening (201) is smaller than the maximum width of the limiting groove (204), the cover body (203) is covered on the shell body (202) to form the floating space with the limiting groove (204).

3. The hood jack valve detection apparatus of claim 2, wherein: The top inner diameter of the limiting groove (204) is larger than the bottom, and a first step surface (205) is formed between the top and the bottom, the first step surface (205) and the cover body (203) form a groove, and the edge (302) of the floating connection piece (3) is floatingly clamped in the groove.

4. The hood jack valve detection apparatus of claim 3, wherein: The bottom of the limiting groove (204) is built-in with a thrust bearing (6), the bottom of the floating connection piece (3) is inserted into the thrust bearing (6), the surface of the thrust bearing (6) is higher than the first step surface (205), and the bottom surface of the edge (302) is slidingly connected with the surface of the thrust bearing (6) to horizontally float in the groove.

5. The hood jack valve detection apparatus of claim 4, wherein: The edge (302) is provided with a second step surface (303), the second step surface (303) is convexly arranged in the top opening (201), and the outer diameter of the second step surface (303) is smaller than the top opening (201) to relatively float in the top opening (201).

6. The hood jack valve detection apparatus of claim 5, wherein: The cross sections of the floating space and the floating connection piece (3) are circular, so that the floating connection piece (3) can horizontally float in the floating space in 360 degrees.

7. The hood jack valve detection apparatus of claim 6, wherein: The top end of the floating connection piece (3) has a circular protruding rib (304), the protruding rib (304) and the inner wall of the stop head (4) form a limiting groove, and the sealing ring (401) is embedded in the limiting groove.

8. The hood jack valve detection apparatus of claim 7, wherein: The cylinder (5) is arranged on a connecting plate (7), a group of guide rods (701) are vertically arranged on the connecting plate (7), the shell (2) is sleeved on the group of guide rods (701), and the cover body (203) is provided with a through hole (2031) allowing the top end of the guide rod (701) to pass out, the top of the guide rod (701) is sleeved with a spring (702), and the two ends of the spring (702) are respectively in abutment with the top end of the guide rod (701) and the shell (202).

9. The hood jack valve detection apparatus of any of claims 1-8, wherein: The positioning platform comprises a platform (101) and a group of positioning cylinders (102), the group of positioning cylinders (102) are arranged at the side of the platform (101) respectively, a positioning pressing block (103) is arranged at the cylinder end of the positioning cylinder (102), and a contact block (104) is arranged at the bottom of the positioning pressing block (103).

10. The hood jack valve detection apparatus of claim 9, wherein: A group of positioning blocks (105) and a group of positioning holes (106) are arranged on the platform (101) to position the product to be measured.

Images