Safe self-locking structure of high-pressure hydrogenation gun
By designing a self-locking device and a protective device on the high-pressure hydrogen refueling gun, the leakage problem caused by misoperation was solved, safety was improved and service life was extended.
Patent Information
- Application Number
- CN202520822377.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-28
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2035-04-28
AI Technical Summary
Existing high-pressure hydrogen refueling guns are prone to leakage due to mishandling of the handle during use, posing a safety hazard.
A high-pressure hydrogen refueling gun structure including a self-locking device and a protective device was designed. The self-locking device prevents accidental operation through the cooperation of a slide bar, a pin, and a spring; the protective device prevents damage to the hydrogen refueling tube by bending at a single point through a protective ring and a drive rod.
It improves the safety of using the hydrogen refueling gun, avoids leakage due to misoperation, and extends the service life of the connection between the hydrogen refueling tube and the gun body.
Smart Images
Figure CN223953823U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to high pressure hydrogenation gun technical field especially relates to a high pressure hydrogenation gun safety self locking structure. BACKGROUND
[0002] High pressure hydrogenation gun is the key part of hydrogen fuel cell automobile hydrogenation system, and its design and manufacture need to meet strict standards, mainly by the head, gun body, control system etc.
[0003] The prior art often has the following defects: in the actual use process of the hydrogenation gun, when the staff takes down the hydrogenation gun for use, the staff often easily causes the hydrogenation gun to leak when pressing the handle due to hand error operation, causing unnecessary loss.
[0004] Therefore, the utility model provides a high pressure hydrogenation gun safety self locking structure. UTILITY MODEL CONTENTS
[0005] The utility model aims at solving the easy mistake of the handle of the hydrogenation gun in the prior art and provides a high pressure hydrogenation gun safety self locking structure.
[0006] In order to achieve the above object, the utility model adopts the following technical scheme: a high pressure hydrogenation gun safety self locking structure, including the gun body, the inside rotation of the gun body is installed with the handle, the lower surface of the gun body is connected with the hydrogenation pipe, the surface of the gun body is equipped with the self locking device, the self locking device includes the slide rod of sliding connection in the inside of the gun body, one end of the slide rod is fixedly connected with the connecting strip, the surface of the connecting strip is fixedly connected with the bolt, the side wall of the handle is equipped with the insertion hole, the size of the insertion hole and the size of the bolt are adapted.
[0007] The effect of the above components is that the self locking device is set, the flexible locking work of the handle is facilitated, the staff mistake of operating the handle is avoided, and the safety of the hydrogenation gun use is improved to a certain extent.
[0008] Preferably, the other end of the slide rod is fixedly connected with the pressing block, the surface of the slide rod is sleeved with the spring, and the two ends of the spring are fixedly connected with the pressing block and the gun body.
[0009] The effect of the above components is that the staff presses the pressing block, the pressing block drives the slide rod to slide back, the slide rod drives the connecting strip and the bolt to separate from the insertion hole, and the slide rod makes the bolt insert into the insertion hole of the handle side wall under the action of the spring.
[0010] Preferably, the side wall of the hydrogenation gun is fixedly connected with the rotating pin, and the side wall of the rotating pin is rotatably connected with the blocking block.
[0011] The effect achieved by the above-mentioned components is that when the press block is pressed without the need to insert the plug into the inside of the insertion hole, the block is blocked on the outer surface of the press block, at which time the plug can achieve the supporting state after being lifted, and the handle can be flexibly controlled.
[0012] Preferably, the end side of the plug is fixedly connected with a circular truncated cone block.
[0013] The effect achieved by the above-mentioned components is that the circular truncated cone block at the end side of the plug helps the plug to be more smoothly inserted into the insertion hole.
[0014] Preferably, the surface of the gun body is provided with a protection device, the protection device comprises an extension rod fixedly connected to the lower surface of the gun body, the output end of the extension rod is fixedly connected with a first positioning block, the side wall of the first positioning block is fixedly connected with a protection ring, and the protection ring is located outside the hydrogenation pipe.
[0015] The effect achieved by the above-mentioned components is that by setting the protection device, flexible support work of the protection ring at different positions is facilitated, the hydrogenation pipe at a single position is avoided from being damaged, and the service life of the connection between the hydrogenation pipe and the gun body is prolonged to a certain extent.
[0016] Preferably, the inner side of the protection ring is glued with a rubber pad.
[0017] The effect achieved by the above-mentioned components is that the rubber pad improves the protection effect of the hydrogenation pipe.
[0018] Preferably, the side wall of the protection ring is fixedly connected with a second positioning block, the inside of the second positioning block is screw-connected with a driving rod, and the driving rod is rotationally connected with the inside of the gun body.
[0019] The effect achieved by the above-mentioned components is that by rotating the driving rod, the driving rod drives the protection ring to move, thereby facilitating the support work of the hydrogenation pipe at different positions.
[0020] In summary:
[0021] 1. In the use of the safety self-locking structure of the high-pressure hydrogenation gun, in the initial state, the plug is inserted into the insertion hole in the side wall of the handle under the action of the spring, at which time the handle is locked and cannot be randomly rotated or pressed, thereby avoiding the leakage of the hydrogenation gun caused by the misoperation of the staff, facilitating the flexible locking work of the handle through the setting of the self-locking device, avoiding the phenomenon of misoperation of the handle by the staff, and improving the safety of the use of the hydrogenation gun to a certain extent.
[0022] 2. In this utility model, the protective ring facilitates protection when the hydrogen refueling tube is bent, and the rubber pad improves the protective effect on the hydrogen refueling tube. When the hydrogen refueling tube becomes bent and flattened in a single location over a long period of time, the drive rod can be rotated, which will drive the protective ring to move, thereby facilitating the support of the hydrogen refueling tube at different locations and preventing long-term bending damage to the hydrogen refueling tube in a single location. The telescopic rod extends and retracts between the first positioning block and the hydrogen refueling gun, which restricts the movement direction of the protective ring. By setting up the protective device, it is convenient to flexibly support the protective ring at different locations, avoid damage to the hydrogen refueling tube in a single location, and extend the service life of the connection between the hydrogen refueling tube and the gun body to a certain extent. Attached Figure Description
[0023] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0024] Figure 2 This is a schematic diagram of the structure of this utility model from another angle;
[0025] Figure 3 In this utility model Figure 1 Enlarged view of point A;
[0026] Figure 4 In this utility model Figure 2 Enlarged view of point B;
[0027] Figure 5 This is a schematic diagram of the protective device in this utility model.
[0028] Legend: 1. Gun body; 2. Grip; 3. Hydrogen charging tube; 4. Self-locking device; 41. Slide rod; 42. Pressure block; 43. Spring; 44. Turning pin; 45. Stop block; 46. Connecting bar; 47. Pin; 48. Insertion hole; 49. Frustum block; 5. Protective device; 51. Protective ring; 52. Drive rod; 53. Telescopic rod; 54. Rubber pad; 55. First positioning block; 56. Second positioning block. Detailed Implementation
[0029] Reference Figure 1 As shown, this utility model provides a technical solution: a high-pressure hydrogen refueling gun safety self-locking structure, including a gun body 1, a handle 2 rotatably installed on the inner side of the gun body 1, a hydrogen refueling pipe 3 connected to the lower surface of the gun body 1, a self-locking device 4 provided on the surface of the gun body 1, and a protective device 5 provided on the surface of the gun body 1.
[0030] The specific settings and functions of its self-locking device 4 and protective device 5 will be explained below.
[0031] Reference Figures 1-4As shown, in the embodiment: the self-locking device 4 comprises a sliding rod 41 slidably connected inside the gun body 1, one end of the sliding rod 41 is fixedly connected with a connecting strip 46, the surface of the connecting strip 46 is fixedly connected with a latch 47, the side wall of the handle 2 is provided with a insertion hole 48, the size of the insertion hole 48 is matched with the size of the latch 47. By setting the self-locking device 4, it is convenient to flexibly lock the handle 2, avoid the phenomenon that the staff mistakenly operates the handle 2, and improve the safety of the use of the hydrogenation gun to a certain extent. The other end of the sliding rod 41 is fixedly connected with a pressing block 42. The staff presses the pressing block 42, the pressing block 42 drives the sliding rod 41 to slide backward, and the sliding rod 41 drives the connecting strip 46 and the latch 47 to separate from the insertion hole 48. The surface of the sliding rod 41 is sleeved with a spring 43, and the two ends of the spring 43 are fixedly connected with the pressing block 42 and the gun body 1 respectively. The sliding rod 41 is driven by the spring 43, so that the latch 47 is inserted into the insertion hole 48 in the side wall of the handle 2. The side wall of the hydrogenation gun is fixedly connected with a rotating pin 44, and the side wall of the rotating pin 44 is rotatably connected with a blocking piece 45. The above-mentioned parts achieve the effect that: when the latch 47 is not needed to be inserted into the inside of the insertion hole 48, after pressing the pressing block 42, the blocking piece 45 on the rotating pin 44 is rotated to shield the outer surface of the pressing block 42, at this time the latch 47 can realize the supporting state after being lifted, and the handle 2 can be flexibly operated, and the flexibility of the use of the locking structure is improved by setting the torsion of the blocking piece 45. The end side of the latch 47 is fixedly connected with a circular truncated cone block 49. The circular truncated cone block 49 on the end side of the latch 47 helps the latch 47 to be more smoothly inserted into the insertion hole 48.
[0032] Referring to Figures 1-2 and Figure 5 As shown, specifically, the protection device 5 comprises a telescopic rod 53 fixedly connected to the lower surface of the gun body 1, the output end of the telescopic rod 53 is fixedly connected with a first positioning block 55, the side wall of the first positioning block 55 is fixedly connected with a protection ring 51, and the protection ring 51 is located outside the hydrogenation pipe 3. By setting the protection device 5, it is convenient to flexibly support the protection ring 51 at different positions, avoid the damage of the hydrogenation pipe 3 at a single position, and prolong the service life of the connection between the hydrogenation pipe 3 and the gun body 1 to a certain extent. The inner side of the protection ring 51 is glued with a rubber pad 54. The rubber pad 54 improves the protection effect of the hydrogenation pipe 3. The side wall of the protection ring 51 is fixedly connected with a second positioning block 56, the inside of the second positioning block 56 is threadedly connected with a driving rod 52, and the driving rod 52 is rotatably connected with the inside of the gun body 1. Rotating the driving rod 52 drives the protection ring 51 to move, thereby facilitating the support work of the hydrogenation pipe 3 at different positions.
[0033] The working principle is that when the high-pressure hydrogenation gun safety self-locking structure is used, in the initial state, the slide rod 41 is inserted into the insertion hole 48 of the side wall of the handle 2 under the action of the spring 43, at this time, the handle 2 is locked and cannot be rotated or pressed at will, so that the staff avoids misoperation to cause the hydrogenation gun to leak, when the hydrogenation gun needs to be used, the staff presses the pressing block 42, the pressing block 42 drives the slide rod 41 to slide backward against the elastic force of the spring 43, the slide rod 41 drives the connecting strip 46 and the plug 47 to be separated from the insertion hole 48, at this time, the handle 2 is unlocked, and the staff can normally operate the handle 2 to carry out hydrogenation work, in the process of pressing the pressing block 42, the circular truncated cone block 49 at the end side of the plug 47 helps the plug 47 to be more smoothly inserted into the insertion hole 48, when the plug 47 does not need to be inserted into the inside of the insertion hole 48, after the pressing block 42 is pressed, the stop block 45 on the rotating pin 44 is rotated to shield the outer surface of the pressing block 42, at this time, the plug 47 can realize the supporting state after being lifted, and the handle 2 can be flexibly controlled, the rotation of the stop block 45 improves the flexibility of the use of the locking structure, the self-locking device 4 facilitates the flexible locking work of the handle 2, avoids the phenomenon that the staff misoperates the handle 2, and improves the safety of the use of the hydrogenation gun to a certain extent.
[0034] The setting of the protective ring 51 facilitates the protection work when the hydrogenation pipe 3 is bent, and the rubber pad 54 improves the protection effect of the hydrogenation pipe 3, when the hydrogenation pipe 3 at a single position appears the phenomenon of long-term bending and flattening, the driving rod 52 can be rotated to drive the protective ring 51 to move, thereby facilitating the supporting work of the hydrogenation pipe 3 at different positions, avoiding the phenomenon that the hydrogenation pipe 3 at a single position is damaged by long-term bending, and the telescopic rod 53 is telescopic between the first positioning block 55 and the hydrogenation gun and plays a role in limiting the moving direction of the protective ring 51, through the setting of the protection device 5, the flexible supporting work of the protective ring 51 at different positions is facilitated, the hydrogenation pipe 3 at a single position is avoided to be damaged, and the service life of the connection between the hydrogenation pipe 3 and the gun body 1 is prolonged to a certain extent.
[0035] In the description of the present application, it should be explained that, unless otherwise specified and limited, the terms "mounting", "connecting", "connecting" should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or indirectly connected through an intermediate medium, it can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
Claims
1. A high-pressure hydrogenation gun safety self-locking structure, comprising a gun body (1), characterized in that: The inside of the gun body (1) is rotatably provided with a handle (2), the lower surface of the gun body (1) is communicated with a hydrogenation pipe (3), the surface of the gun body (1) is provided with a self-locking device (4), the self-locking device (4) comprises a sliding rod (41) slidably connected to the inside of the gun body (1), one end of the sliding rod (41) is fixedly connected with a connecting strip (46), the surface of the connecting strip (46) is fixedly connected with a latch (47), the side wall of the handle (2) is provided with a insertion hole (48), the size of the insertion hole (48) is matched with the size of the latch (47).
2. The safety self-locking structure of a high-pressure hydrogenation gun according to claim 1, characterized in that: The other end of the sliding rod (41) is fixedly connected with a pressing block (42), the surface of the sliding rod (41) is sleeved with a spring (43), the two ends of the spring (43) are fixedly connected with the pressing block (42) and the gun body (1) respectively.
3. The safety self-locking structure of a high-pressure hydrogenation gun according to claim 1, characterized in that: The side wall of the hydrogenation gun is fixedly connected with a rotating pin (44), the side wall of the rotating pin (44) is rotatably connected with a stop block (45).
4. The safety self-locking structure of a high-pressure hydrogenation gun according to claim 1, characterized in that: The end side of the latch (47) is fixedly connected with a circular truncated cone block (49).
5. The safety self-locking structure of a high-pressure hydrogenation gun according to claim 1, characterized in that: The surface of the gun body (1) is provided with a protection device (5), the protection device (5) comprises a telescopic rod (53) fixedly connected to the lower surface of the gun body (1), the output end of the telescopic rod (53) is fixedly connected with a first positioning block (55), the side wall of the first positioning block (55) is fixedly connected with a protection ring (51), the protection ring (51) is located on the outside of the hydrogenation pipe (3).
6. The safety self-locking structure of a high-pressure hydrogenation gun according to claim 5, characterized in that: The inside of the protection ring (51) is glued with a rubber pad (54).
7. The safety self-locking structure of a high-pressure hydrogenation gun according to claim 5, characterized in that: The side wall of the protection ring (51) is fixedly connected with a second positioning block (56), the inside of the second positioning block (56) is screwedly connected with a driving rod (52), the inside of the driving rod (52) is rotatably connected with the gun body (1).