Combustible liquid vehicle refilling anti-dropping device

By designing a combination of receiving mechanism, joint mechanism, locking mechanism, clamping mechanism and sliding mechanism, the problems of low connection efficiency and leakage in existing flammable liquid vehicle filling devices are solved, and a fast and safe filling process is achieved.

CN224548080UActive Publication Date: 2026-07-24DEZHOU NENGAO PETROLEUM TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DEZHOU NENGAO PETROLEUM TECH CO LTD
Filing Date
2025-07-14
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

Existing flammable liquid vehicle filling devices are inefficient and prone to leakage during connection and disconnection, posing safety hazards. In particular, lever-type quick connectors are prone to leakage of flammable liquids due to accidental contact or loosening caused by fluctuations in medium pressure.

Method used

A flammable liquid vehicle filling anti-loosening device was designed, which includes a receiving mechanism, a connector mechanism, a locking mechanism, a pressing mechanism, and a sliding mechanism. Through the cooperation of the sliding ring and the locking pin, it can achieve quick locking and unlocking, prevent loosening, and improve sealing performance.

Benefits of technology

It enables rapid connection and disconnection, improves the safety and sealing of the device, avoids leakage of flammable liquids, and enhances the convenience and safety of operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a combustible liquid vehicle filling anti -drop device belongs to combustible liquid filling technical field, this combustible liquid vehicle filling anti -drop device, including the bearing mechanism and the compression mechanism, the bearing mechanism is clamped fixed with the connector mechanism for the liquid filling of the butt joint pipeline, the connector mechanism is integrally fixed with the locking mechanism for locking the compression mechanism. The utility model discloses the setting of bearing mechanism, connector mechanism, locking mechanism, compression mechanism and sliding mechanism, locking mechanism can lock the compression mechanism, effectively prevent the compression mechanism and rotate loose because of the mistake touch or because of medium pressure etc.
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Description

Technical Field

[0001] This utility model relates to the field of flammable liquid filling technology, and in particular to a flammable liquid vehicle filling anti-detachment device. Background Technology

[0002] In industrial production and manufacturing, various flammable liquids such as hydrocarbons and alcohols, such as toluene and methanol, are often used. These flammable liquids are widely used in chemical synthesis, coatings, pharmaceuticals, inks, adhesives and other fields. The transportation of these flammable liquids relies on specially designed transport vehicles, and filling connectors are often required when filling these vehicles with flammable liquids.

[0003] There are various types of filling connectors on the market, such as threaded connectors and quick-connect connectors. In actual use, threaded connectors require rotating the threads to connect and disconnect, so their installation and connection efficiency is low. Moreover, the threads are prone to wear and stripping, which can lead to leakage of flammable liquid media. Therefore, when filling flammable liquids in vehicles, workers often use lever-type quick connectors. However, most existing lever-type quick connectors do not have a locking mechanism for the lever. The lever can easily loosen due to accidental contact or fluctuations in medium pressure, which can lead to leakage of flammable liquids and create safety hazards.

[0004] Therefore, there is an urgent need to provide a device to prevent the detachment of flammable liquids during vehicle filling to solve the above problems. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a device for preventing the detachment of flammable liquid vehicle filling.

[0006] To solve the above-mentioned technical problems, the present invention adopts a technical solution as follows: a flammable liquid vehicle filling anti-detachment device is provided, including a receiving mechanism and a pressing mechanism. The receiving mechanism is snapped and fixed with a connector mechanism for connecting the pipeline to fill liquid, and the connector mechanism is integrally fixed with a locking mechanism for locking the pressing mechanism. The joint mechanism is equipped with a clamping mechanism; The connector mechanism is also provided with a sliding mechanism for driving the locking mechanism.

[0007] The present invention is further configured such that: the receiving mechanism includes a receiving part, a sealing plate is integrally fixed to the outside of the receiving part, a protective gasket is provided on the sealing plate, and a fixing groove is machined on the receiving part.

[0008] With the above technical solution, the receiving part is made of stainless steel and can be fixed to the vehicle's liquid storage tank, while the protective gasket is made of rubber, which can effectively reduce the impact damage and wear on the receiving part.

[0009] The present invention is further configured such that: the connector mechanism includes a connecting sleeve fitted onto the outside of the receiving part, a connecting tube integrally connected to the connecting sleeve, two mounting grooves provided on the connecting sleeve, and a sealing gasket embedded in the inner side of the connecting sleeve.

[0010] With the above technical solution, the connecting sleeve is made of aluminum alloy. When the connecting sleeve is locked with the receiving part, the sealing gasket can effectively prevent leakage at the connection.

[0011] The present invention is further configured such that: the locking mechanism includes a locking member integrally fixed on the connecting pipe, the locking member has a locking groove, a locking pin is slidably disposed on the locking member, and a spring is welded and fixed on the locking member.

[0012] With the above technical solution, the end of the locking pin is beveled, and the other end of the spring is fixed to the pin seat of the locking pin. The operator can pull up the locking pin through the pin seat. When the operator releases the locking pin, the locking pin will return to its original position under the contraction of the spring.

[0013] The present invention is further configured such that: the clamping mechanism includes a rotating connector rotatably disposed in the mounting groove, an eccentric protrusion is fixed to the outside of the rotating connector, and a rotating arm is fixed on the eccentric protrusion.

[0014] With the above technical solution, when the connecting sleeve is fitted outside the receiving part, the eccentric protrusion is aligned with the fixing groove. When the rotating arm rotates towards the central axis of the connecting pipe, the protruding part of the eccentric protrusion will also rotate towards the central axis of the connecting pipe, thereby pressing into the fixing groove, so that the receiving part and the connecting sleeve are locked together. Furthermore, its protruding part will also apply a certain force to the fixing groove, forcing the receiving part to press the sealing gasket tightly, improving its sealing performance, and preventing liquid medium leakage.

[0015] The present invention is further configured such that: a connecting arm is rotatably provided at the end of the rotating arm, and a rotating bushing is integrally fixed at the end of the connecting arm.

[0016] With the above technical solution, when the connecting arm moves toward the locking mechanism, the connecting arm will pull the rotating arm, causing the rotating arm to rotate toward the central axis of the connecting tube.

[0017] The present invention is further configured such that: the sliding mechanism includes a sliding ring slidably disposed outside the connecting pipe, two rotating connecting parts are integrally fixed on the sliding ring, and a pull handle is integrally fixed on the sliding ring.

[0018] Through the above technical solution, each rotating connection part consists of two connecting ears and a long rod with a threaded screw. The screw passes through the rotating bushing, allowing the connecting arm to rotate and connect with the rotating connection part. When the operator needs to fix the joint mechanism to the receiving mechanism, the sliding ring can be pulled towards the locking mechanism by pulling the handle. At this time, the connecting arm drives the rotating arm to rotate, causing the eccentric protrusion to rotate and lock the receiving mechanism. When the pulling handle contacts the locking pin, the locking pin will rise under the action of the inclined structure of the locking pin and the arc structure of the pulling handle. At this time, the pulling handle can enter the locking groove. After the handle passes the locking pin, the locking pin will reset under the action of the spring, thus restricting the handle in the locking groove. At this time, the sliding ring cannot slide, and the rotating arm and connecting arm always remain in a taut state, thereby preventing the rotating arm and eccentric protrusion from rotating and causing the device to loosen. When the operator needs to separate the connector mechanism from the receiving mechanism, the locking pin can be pulled up, and the sliding ring can be pushed towards the connector mechanism by pulling the handle. At this time, the connecting arm will push the rotating arm to rotate away from the central axis of the connecting pipe, thereby releasing the eccentric protrusion from locking the receiving mechanism. The connection and disassembly process is very quick.

[0019] The beneficial effects of this utility model are as follows: 1. This utility model, through the setting of a receiving mechanism, a connecting mechanism, a locking mechanism, a pressing mechanism and a sliding mechanism, can lock the pressing mechanism, effectively preventing the pressing mechanism from rotating and loosening due to accidental contact or medium pressure, thereby improving the safety and practicality of the device; 2. With the addition of a connector mechanism, a locking mechanism, a pressing mechanism, and a sliding mechanism, this utility model allows workers to complete the connection by simply pulling once after aligning the connectors, making the operation very convenient and quick. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a structural diagram of the receiving mechanism of this utility model; Figure 3 This is a structural diagram of the connector mechanism and locking mechanism of this utility model; Figure 4 This is a structural diagram of the clamping mechanism of this utility model; Figure 5 This is a structural diagram of the sliding mechanism of this utility model.

[0021] In the diagram: 1. Receiving mechanism; 101. Receiving part; 102. Sealing plate; 103. Protective gasket; 104. Fixing groove; 2. Joint mechanism; 201. Connecting sleeve; 202. Connecting pipe; 203. Mounting groove; 204. Sealing gasket; 3. Locking mechanism; 301. Locking element; 302. Locking groove; 303. Locking pin; 304. Spring; 4. Pressing mechanism; 401. Rotating connecting part; 402. Eccentric protrusion; 403. Rotating arm; 404. Connecting arm; 405. Rotating bushing; 5. Sliding mechanism; 501. Sliding ring; 502. Rotating connecting part; 503. Pull handle. Detailed Implementation

[0022] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0023] Please see Figures 1-5 A flammable liquid vehicle filling anti-detachment device includes a receiving mechanism 1 and a pressing mechanism 4. The receiving mechanism 1 includes a receiving part 101, with a sealing plate 102 integrally fixed to the outside of the receiving part 101. A protective gasket 103 is provided on the sealing plate 102. A fixing groove 104 is also machined on the receiving part 101. The receiving part 101 is made of stainless steel and can be fixed to the liquid storage tank of the vehicle. The protective gasket 103 is made of rubber and can effectively reduce the impact damage and wear on the receiving part 101. The structure 1 is fixedly fitted with a connector mechanism 2 for filling the pipeline with liquid. The connector mechanism 2 includes a connecting sleeve 201 that is sleeved on the outside of the receiving part 101. A connecting pipe 202 is integrally connected to the connecting sleeve 201. The connecting sleeve 201 also has two mounting grooves 203. A sealing gasket 204 is embedded in the inner side of the connecting sleeve 201. The connecting sleeve 201 is made of aluminum alloy. When the connecting sleeve 201 is locked with the receiving part 101, the sealing gasket 204 can effectively prevent liquid leakage at the connection.

[0024] like Figure 1 and Figure 3 As shown, a locking mechanism 3 for locking the clamping mechanism 4 is integrally fixed on the connector mechanism 2. The locking mechanism 3 includes a locking member 301 integrally fixed on the connecting pipe 202. The locking member 301 has a locking groove 302. A locking pin 303 is also slidably disposed on the locking member 301. A spring 304 is also welded and fixed on the locking member 301. The end of the locking pin 303 is beveled. The other end of the spring 304 is fixed to the pin seat of the locking pin 303. The operator can pull up the locking pin 303 through the pin seat. When the operator releases the locking pin 303, the locking pin 303 will reset under the contraction of the spring 304.

[0025] like Figure 1 and Figure 4 As shown, the connector mechanism 2 is equipped with a clamping mechanism 4. The clamping mechanism 4 includes a rotating connector 401 rotatably disposed in the mounting groove 203. An eccentric protrusion 402 is fixed to the outside of the rotating connector 401. A rotating arm 403 is fixed to the eccentric protrusion 402. A connecting arm 404 is rotatably disposed at the end of the rotating arm 403. A rotating bushing 405 is integrally fixed to the end of the connecting arm 404. When the connecting bushing 201 is fitted onto the outside of the receiving part 101, the eccentric protrusion 402 is aligned with the fixing groove 104. When the rotating arm 403 moves towards the central axis of the connecting tube 202... When the eccentric protrusion 402 rotates in the linear direction, the protruding part of the eccentric protrusion 402 will also rotate in the direction of the central axis of the connecting pipe 202, thereby pressing into the fixing groove 104, so that the receiving part 101 and the connecting sleeve 201 are locked together, and its protruding part will also apply a certain force to the fixing groove 104, forcing the receiving part 101 to press the sealing gasket 204, improving its sealing performance and preventing liquid medium leakage. When the connecting arm 404 moves in the direction of the locking mechanism 3, the connecting arm 404 will pull the rotating arm 403, so that the rotating arm 403 rotates in the direction of the central axis of the connecting pipe 202.

[0026] like Figure 1 and Figure 5As shown, the connector mechanism 2 is also equipped with a sliding mechanism 5 for driving the locking mechanism 3. The sliding mechanism 5 includes a sliding ring 501 slidably disposed outside the connecting pipe 202. Two rotating connecting parts 502 are integrally fixed on the sliding ring 501. A pull handle 503 is also integrally fixed on the sliding ring 501. Each rotating connecting part 502 consists of two connecting ears and a long rod part threaded screw. The screw passes through the rotating bushing 405, so that the connecting arm 404 is rotatably connected to the rotating connecting part 502. When the operator needs to fix the connector mechanism 2 to the receiving mechanism 1, the sliding ring 501 can be pulled towards the locking mechanism 3 by pulling the handle 503. At this time, the connecting arm 404 drives the rotating arm 403 to rotate, so that the eccentric protrusion 402 rotates to lock the receiving mechanism 1. When the pull handle 503 contacts the locking pin 303, the inclined structure of the locking pin 303 and the pull handle 503... Under the action of the arc-shaped structure, the locking pin 303 will rise upwards. At this time, the pull handle 503 can enter the locking groove 302. After the pull handle 503 passes the locking pin 303, the locking pin 303 will be reset under the action of the spring 304, thereby restricting the pull handle 503 in the locking groove 302. At this time, the sliding ring 501 cannot slide, and the rotating arm 403 and the connecting arm 404 always remain in a taut state, thereby preventing the rotating arm 403 and the eccentric protrusion 402 from rotating and causing the device to loosen. When the operator needs to separate the connector mechanism 2 from the receiving mechanism 1, the locking pin 303 can be pulled up, and the sliding ring 501 can be pushed towards the connector mechanism 2 by pulling the handle 503. At this time, the connecting arm 404 will push the rotating arm 403 to rotate away from the central axis of the connecting tube 202, thereby releasing the eccentric protrusion 402 from locking the receiving mechanism 1. The connection and disassembly process is very quick.

[0027] When this utility model is in use, the receiving mechanism 1 is installed on the liquid medium storage tank of the vehicle. When the staff needs to fill the liquid medium, they can align the connector mechanism 2 with the receiving mechanism 1 and insert it, and pull the sliding mechanism 5. The sliding mechanism 5 can drive the pressing mechanism 4 to lock the connector. The locking mechanism 3 can limit the sliding mechanism 5, thereby preventing the pressing mechanism 4 from loosening.

[0028] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A device for preventing the detachment of a vehicle filling system for flammable liquids, comprising a receiving mechanism (1) and a pressing mechanism (4), characterized in that: The receiving mechanism (1) is fixedly connected to a connector mechanism (2) for filling the pipeline with liquid, and the connector mechanism (2) is integrally fixed with a locking mechanism (3) for locking the pressing mechanism (4). The connector mechanism (2) is provided with a clamping mechanism (4); The connector mechanism (2) is also provided with a sliding mechanism (5) for driving the locking mechanism (3).

2. The anti-detachment device for flammable liquid vehicle filling according to claim 1, characterized in that: The receiving mechanism (1) includes a receiving part (101), a sealing plate (102) is integrally fixed to the outside of the receiving part (101), a protective gasket (103) is provided on the sealing plate (102), and a fixing groove (104) is machined on the receiving part (101).

3. The anti-detachment device for flammable liquid vehicle filling according to claim 2, characterized in that: The connector mechanism (2) includes a connecting sleeve (201) sleeved on the outside of the receiving part (101), a connecting pipe (202) integrally connected to the connecting sleeve (201), two mounting grooves (203) are also provided on the connecting sleeve (201), and a sealing gasket (204) is embedded in the inner side of the connecting sleeve (201).

4. The anti-detachment device for flammable liquid vehicle filling according to claim 3, characterized in that: The locking mechanism (3) includes a locking member (301) integrally fixed on the connecting pipe (202), a locking groove (302) is provided on the locking member (301), a locking pin (303) is slidably provided on the locking member (301), and a spring (304) is welded and fixed on the locking member (301).

5. The anti-detachment device for flammable liquid vehicle filling according to claim 3, characterized in that: The clamping mechanism (4) includes a rotating connector (401) rotatably disposed in the mounting groove (203), an eccentric protrusion (402) is fixed to the outside of the rotating connector (401), and a rotating arm (403) is fixed on the eccentric protrusion (402).

6. The anti-detachment device for flammable liquid vehicle filling according to claim 5, characterized in that: The end of the rotating arm (403) is rotatably provided with a connecting arm (404), and the end of the connecting arm (404) is integrally fixed with a rotating bushing (405).

7. The anti-detachment device for flammable liquid vehicle filling according to claim 3, characterized in that: The sliding mechanism (5) includes a sliding ring (501) that is slidably disposed outside the connecting pipe (202). Two rotating connecting parts (502) are integrally fixed on the sliding ring (501), and a pull handle (503) is also integrally fixed on the sliding ring (501).