An assembly device for a fuel tank lock cap

By designing an assembly device for the fuel tank lock cover, which uses a worktable, positioning block, and cylinder solenoid valve in combination, the efficient and automated assembly of the fuel tank lock cover is achieved, solving the problem of low assembly efficiency and improving production efficiency and product quality.

CN224488313UActive Publication Date: 2026-07-14GUIZHOU HUACHANG AUTOMOBILE ELECTRIC APPLIANCES CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUIZHOU HUACHANG AUTOMOBILE ELECTRIC APPLIANCES CO LTD
Filing Date
2025-06-30
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

The existing fuel tank lock cover has low assembly efficiency and cannot meet the needs of assembly line production.

Method used

An assembly device for a fuel tank lock cover was designed, including a worktable, a positioning block, a torsion spring assembly part, and a pin assembly part. The device utilizes the cooperation of a cylinder and a solenoid valve to achieve automated assembly.

Benefits of technology

It significantly improves assembly efficiency, completing at least 5 assembly units per minute, ensuring product quality, and features a reasonable structure, good stability, and easy maintenance.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224488313U_ABST
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Abstract

The utility model discloses a kind of assembly devices of fuel tank lock lock cover, it is related to fuel tank lock lock cover assembly technical field, by cylinder, solenoid valve, solenoid valve, cylinder, install pin push rod, install pin sliding block, install pin sliding slot, button switch, button switch, positioning block, torsion spring sliding slot, torsion spring sliding block, torsion spring push rod, bottom plate, cylinder fixed plate, 24V switching power supply composition.Compared with prior art "division step manual simple tool assembly", the utility model can be realized to complete production once, production efficiency is significantly improved, and the utility model can guarantee the product quality of flow production, also has structure reasonable, good stability, easy to maintain and the like characteristics.
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Description

Technical Field

[0001] This utility model relates to the field of fuel tank lock cover assembly technology for fuel-powered passenger vehicles, specifically an assembly device for a fuel tank lock cover. Background Technology

[0002] In gasoline-powered passenger vehicles, the fuel tank lock is an essential accessory. To protect the fuel tank lock cylinder from dust and water, the fuel tank lock has a lock head cover device. When the fuel tank lock is opened, the lock head cover automatically pops open under the action of a torsion spring, making it easy to insert the key to open the lock cylinder and remove the fuel tank lock.

[0003] To improve the assembly efficiency of fuel tank lock cover components (lock head cover, pin, torsion spring and cover) for passenger vehicles, our company analyzed the actual production and assembly situation of fuel tank lock covers (previously, assembly was done manually with division of labor, which was inefficient) and designed a new type of assembly device for fuel tank lock covers of passenger vehicles. The device has shown good performance. Utility Model Content

[0004] This utility model provides an assembly device for a fuel tank lock cover, which aims to assemble the return torsion spring of the fuel tank lock cover of a fuel passenger vehicle. This utility model can not only improve assembly efficiency and ensure the product quality of assembly line production, but also has the characteristics of reasonable structure, good stability and easy maintenance.

[0005] This utility model provides the following technical solution to achieve the above objectives:

[0006] An assembly device for a fuel tank lock cover includes a worktable; the fuel tank lock cover includes a lock head cover, a pin, a torsion spring, and a cover; a positioning block is provided on the worktable, and a torsion spring assembly part and a pin assembly part are provided next to the positioning block; the torsion spring assembly part includes a torsion spring groove fixedly installed on the worktable, a torsion spring slider slidably arranged in the torsion spring groove, a torsion spring push rod movably passing through the torsion spring slider, a torsion spring groove provided in the middle of the torsion spring slider, a torsion spring cylinder connected to the end of the torsion spring push rod away from the positioning block, and a spring 1 sleeved on the torsion spring push rod, the spring 1 being located on the side of the torsion spring slider away from the positioning block; the pin assembly part includes a pin mounting groove fixedly installed on the worktable, a pin mounting slider slidably arranged in the pin mounting groove, a pin guide groove provided at the end of the pin mounting slider near the positioning block, and a pin mounting push rod connected to the pin mounting cylinder at the end away from the positioning block, the pin mounting push rod being sleeved on the pin mounting push rod, the spring 2 being located on the side of the pin mounting slider away from the positioning block.

[0007] In the aforementioned fuel tank lock cover assembly device, the positioning block matches the shape of the cover; the torsion spring groove matches the shape of the torsion spring; and the pin guide groove matches the shape of the pin.

[0008] In the aforementioned fuel tank lock cover assembly device, the torsion spring cylinder is connected to the torsion spring solenoid valve, and the torsion spring solenoid valve is connected to the torsion spring cylinder switch; the pin loading cylinder is connected to the pin loading solenoid valve, and the pin loading solenoid valve is connected to the pin loading cylinder switch.

[0009] In the aforementioned fuel tank lock cover assembly device, the torsion spring cylinder switch and the pin cylinder switch are electrically connected to a 24V switching power supply.

[0010] In the aforementioned fuel tank lock cover assembly device, the torsion spring cylinder and the pin-loading cylinder are respectively mounted on the worktable via cylinder fixing plates.

[0011] Beneficial effects

[0012] Before the use of this utility model, the original step-by-step assembly of fuel tank lock covers could only assemble 1 to 2 pieces per minute. With this utility model, production can be completed in one go, significantly improving production efficiency. At least 5 pieces can be assembled per minute. Furthermore, this utility model can ensure the quality of products produced in a continuous production line and also has the characteristics of reasonable structure, good stability, and easy maintenance. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the fuel tank lock cover before assembly.

[0014] Figure 2 A schematic diagram of the fuel tank lock cover after assembly (showing the connection positions of the torsion spring, pin, lock head cover and cover after assembly using this utility model; other parts are omitted).

[0015] Figures 1-2 Chinese reference numerals: 001 Lock head cover, 002 Pin, 003 Torsion spring, 004 Cover;

[0016] Figure 3 This is a schematic diagram of the structure of this utility model;

[0017] Figure 4 A schematic diagram of the structure for assembling the torsion spring in the torsion spring assembly section (other structures are shown below). Figure 3 It can be seen that omissions are made.

[0018] Figure 5 for Figure 4 A cross-sectional structural diagram (the worktable is an existing design, and the lower structure is omitted).

[0019] Figure 6 Diagram illustrating the working status of the pin assembly department. Figure 1 (Only key working parts are shown; other structural components are not shown.) Figure 3 It can be seen that omissions are made.

[0020] Figure 7 Diagram illustrating the working status of the pin assembly department. Figure 2(Only key working parts are shown; other structural components are not shown.) Figure 3 It can be seen that omissions are made);

[0021] Figure 8 Diagram illustrating the working status of the pin assembly department. Figure 3 (Only key working parts are shown; other structural components are not shown.) Figure 3 It can be seen that omissions are made);

[0022] Reference numerals: 01 Torsion spring cylinder, 02 Torsion spring solenoid valve, 03 Pin loading solenoid valve, 04 Pin loading cylinder, 05 Pin loading push rod, 06 Pin loading slider, 07 Pin loading groove, 08 Torsion spring cylinder switch, 09 Pin loading cylinder switch, 10 Positioning block, 11 Torsion spring groove, 12 Torsion spring slider, 13 Torsion spring push rod. Detailed Implementation

[0023] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0024] Example: An assembly device for a fuel tank lock cap. This device is used for assembling a fuel tank lock cap. The structure of the fuel tank lock cap is referenced below. Figure 1-2 As shown, it includes a lock cover 001, a pin 002, a torsion spring 003, and a cover 004;

[0025] Reference to the implementation structure of the fuel tank lock cover assembly device Figure 3 As shown, the device includes a workbench with a positioning block 10. A torsion spring assembly and a pin assembly are located beside the positioning block 10. The torsion spring assembly includes a torsion spring groove 11 fixedly mounted on the workbench. A torsion spring slider 12 is slidably disposed in the torsion spring groove 11. A torsion spring push rod 13 is movably disposed in the torsion spring slider 12. A torsion spring groove is provided in the middle of the torsion spring slider 12. The end of the torsion spring push rod 13 away from the positioning block 10 is connected to a torsion spring cylinder 01. A spring is sleeved on the torsion spring push rod 13. Spring 1 is located on the side of the torsion spring slider 12 away from the positioning block 10; the pin assembly part includes a pin mounting groove 07 fixedly installed on the workbench, a pin mounting slider 06 is slidably arranged in the pin mounting groove 07, a pin guide groove is provided at the end of the pin mounting slider 06 near the positioning block 10, and the end away from the positioning block 10 is connected to a pin mounting push rod 05, the pin mounting push rod 05 is connected to a pin mounting cylinder 04, and a second spring is sleeved on the pin mounting push rod 05, which is located on the side of the pin mounting slider 06 away from the positioning block 10.

[0026] The positioning block 10 matches the shape of the cover 004; the torsion spring groove matches the shape of the torsion spring 003; the pin guide groove matches the shape of the pin 002, and the pin guide groove is preferably a guide V-shaped groove. The components of this device match the shape of the fuel tank lock cover to be assembled, thereby achieving the assembly work.

[0027] The torsion spring cylinder 01 is connected to the torsion spring solenoid valve 02, and the torsion spring solenoid valve 02 is connected to the torsion spring cylinder switch 08; the pin-loading cylinder 04 is connected to the pin-loading solenoid valve 03, and the pin-loading solenoid valve 03 is connected to the pin-loading cylinder switch 09. Starting and stopping the cylinder via a switch and solenoid valve is existing technology.

[0028] The torsion spring cylinder switch 08 and the pin-loading cylinder switch 09 are electrically connected to a 24V switching power supply. The power supply provides power to the switches.

[0029] The torsion spring cylinder 01 and the pin-loading cylinder 04 are respectively mounted on the workbench via cylinder fixing plates.

[0030] The working principle and process of this utility model using the above structure are as follows: Place the cover 004 onto the positioning block 10, then place the lock head cover 001 into the cover assembly position according to the assembly relationship. Manually place the torsion spring 003 into the torsion spring groove. Press the torsion spring cylinder switch 08 to activate the torsion spring cylinder 01. Under the action of the torsion spring cylinder 01 and the spring, the torsion spring slider 12 slides to the position where it fits the lock head cover 001. At this time, the state reference... Figure 4-5 Then, under the push of the torsion spring cylinder 01, the torsion spring push rod 13 pushes the torsion spring 003 to the pin mounting position; then, manually place the pin 002 into the guide V-groove, press the pin mounting cylinder switch 09 to start the pin mounting cylinder 04, and the pin mounting slider 06 is pushed to the cover pin mounting position by the left and right sides of the pin mounting cylinder 04 and the second spring. At this time, the pin mounting push rod 05 continues to be pushed by the pin mounting cylinder 04, and then pushes the pin 002 through the lock cover 001, the torsion spring 003 and the cover 004, thereby completing the assembly of the fuel tank lock cover components; finally, release the two switches and remove the assembled fuel tank lock cover.

[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An assembly device for a fuel tank lock cover, comprising a worktable; the fuel tank lock cover comprising a lock head cover (001), a pin (002), a torsion spring (003), and a cover (004), characterized in that: A positioning block (10) is provided on the workbench, and a torsion spring assembly part and a pin assembly part are provided next to the positioning block (10); the torsion spring assembly part includes a torsion spring slide groove (11) fixedly installed on the workbench, a torsion spring slider (12) is slidably arranged in the torsion spring slide groove (11), a torsion spring push rod (13) is movably arranged in the torsion spring slider (12), a torsion spring groove is provided in the middle of the torsion spring slider (12), and the end of the torsion spring push rod (13) away from the positioning block (10) is connected to the torsion spring cylinder (01). A spring is sleeved on the torsion spring push rod (13), and the spring is set in the... The torsion spring slider (12) is located away from the positioning block (10); the pin assembly part includes a pin mounting groove (07) fixedly installed on the workbench, a pin mounting slider (06) is slidably arranged in the pin mounting groove (07), a pin guide groove is provided at the end of the pin mounting slider (06) near the positioning block (10), and a pin mounting push rod (05) is connected at the end away from the positioning block (10). The pin mounting push rod (05) is connected to the pin mounting cylinder (04), and a second spring is sleeved on the pin mounting push rod (05). The second spring is located on the side of the pin mounting slider (06) away from the positioning block (10).

2. The assembly device for the fuel tank lock cover according to claim 1, characterized in that: The positioning block (10) matches the shape of the cover (004); the torsion spring groove matches the shape of the torsion spring (003); and the pin guide groove matches the shape of the pin (002).

3. The assembly device for the fuel tank lock cover according to claim 1, characterized in that: The torsion spring cylinder (01) is connected to the torsion spring solenoid valve (02), and the torsion spring solenoid valve (02) is connected to the torsion spring cylinder switch (08); the pin loading cylinder (04) is connected to the pin loading solenoid valve (03), and the pin loading solenoid valve (03) is connected to the pin loading cylinder switch (09).

4. The assembly device for the fuel tank lock cover according to claim 3, characterized in that: The torsion spring cylinder switch (08) and the pin-loading cylinder switch (09) are electrically connected to a 24V switching power supply.

5. The assembly device for the fuel tank lock cover according to claim 1, characterized in that: The torsion spring cylinder (01) and the pin-loading cylinder (04) are respectively mounted on the workbench via cylinder fixing plates.