Anti-falling quick-inserting inflation tool with safety locking pin

Abstract

The utility model discloses an anti-disengagement quick-plug inflation tool with a safety locking pin, which comprises a quick-plug connector, a gun body, a deflation valve and a quick-plug inflation connector, the quick-plug connector comprises a connector jacket and a connector shell, the connector shell is in threaded connection with the gun body, the connector jacket is sleeved on the connector shell, a spring is arranged between the connector shell and the connector shell, and the quick-plug inflation connector is connected with the gun body. A steel ball is arranged in a trapezoid hole formed in the circumferential direction of the left end of the connector shell and corresponds to the left end of the connector outer sleeve, a pin groove is formed in the right end of the connector outer sleeve, a safety pin is arranged on the outer surface of the gun body and corresponds to the pin groove, and the deflation valve is installed at the right end of the gun body. The air inflation tool has the advantages of being fast in butt joint and capable of preventing disengaging, the air inflation requirements for high working pressure and high safety are met, accidental separation caused by misoperation is effectively prevented, the overall structure installation mode is simple and reliable, and the application range is wide.

Description

Technical Field

[0001] The utility model relates to the technical field of inflation tools, in particular to an anti-drop quick-insertion inflation tool with a safety locking pin. Background Art

[0002] In the application of high-pressure gas systems, the gas in the gas source pipeline is flushed into the high-pressure tank or high-pressure system through an inflation tool. The inflation tool is required to have the function of quick and reliable docking. The existing inflation tool has a simple structure and consists of only a valve core and a joint to connect the gas circuit to the equipment. It does not have the function of anti-detachment and locking, and cannot accurately judge whether the docking is in place. Chinese patent application No. 202011147978.2 discloses an inflation tool, including a valve body, one end of the valve body is provided with an installation groove, the other end of the valve body is provided with a connecting port, a valve core is coaxially connected in the installation groove, a placement groove is provided in the valve core, a pressure measuring joint is connected to the end of the placement groove away from the valve body, and the other end of the placement groove is connected to a through hole; the defect is that in the absence of a safety locking function, there is a safety hazard of automatic disengagement due to misoperation; in view of the above-mentioned problems, a quick-insert inflation tool with a safety locking pin and anti-detachment is proposed. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the existing defects and provide a quick-insert inflation tool with a safety locking pin to prevent disengagement. The inflation tool has the advantages of quick docking and anti-disengagement, meets the inflation requirements of high working pressure and high safety, and the overall structure installation method is simple and reliable, with a wide range of applications, which can effectively solve the problems in the background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a quick-insert inflation tool with a safety locking pin and an anti-detachment function, comprising a quick-insert connector, a gun body, an air release valve and a quick-insert inflation connector, the quick-insert connector comprising a connector sleeve and a connector shell, the connector shell is threadedly connected to the gun body, the connector sleeve is sleeved on the connector shell, and a spring is arranged between the connector shell and the connector shell, a steel ball is arranged in a trapezoidal hole opened in a circumferential direction at the left end of the connector shell, the steel ball corresponds to the left end of the connector sleeve, a pin groove is arranged at the right end of the connector sleeve, a safety pin is arranged on the outer surface of the gun body, the safety pin corresponds to the pin groove, and the air release valve is installed at the right end of the gun body.

[0005] Furthermore, an annular groove is provided in the circumferential direction of the quick-insert inflation connector.

[0006] Furthermore, the air release valve includes a valve seat, a valve, an air release valve joint and a handle, the valve seat is arranged in the gun body, the left end of the valve is inserted into the valve seat, the air release valve joint is threadedly connected to the gun body, and the left end of the air release valve joint is in contact with the valve seat, the handle is threadedly connected to the air release valve joint, and the right end of the handle is threadedly connected to the valve, and an air outlet is opened in the circumferential direction of the air release valve joint.

[0007] Furthermore, a filter assembly and an air charging connector are provided at the lower end of the gun body. The filter assembly is a conventional air path conical filter structure. The filter assembly is arranged in the air passage at the lower end of the gun body, and the air charging connector is threadedly connected to the lower end of the gun body.

[0008] Furthermore, the right end of the quick-plug inflation connector is set as a ladder-shaped structure, a protective ring and a sealing ring are provided on the inner wall of the connector shell, the right end of the quick-plug inflation connector contacts the sealing ring to form a sealing structure, and a wire retaining ring is provided in the outer circumferential direction of the left end of the connector shell.

[0009] Compared with the prior art, the beneficial effects of the utility model are:

[0010] The inflation tool has the advantages of quick docking and anti-detachment, meets the inflation requirements of high working pressure and high safety, effectively prevents accidental separation caused by misoperation, and the overall structural installation method is simple and reliable, with a wide range of applications.

[0011] The quick-plug part uses a steel ball locking structure, and a safety pin groove is added to the connector sleeve. When docking with the quick-plug connector, the safety pin is in the pin groove. After the docking with the quick-plug connector is completed and the steel ball is locked in place, the safety pin can be disengaged from the pin groove. At this time, the safety pin only needs to be supported against the connector sleeve by rotating the connector sleeve to any angle. At this time, the quick-plug connector cannot be separated by itself. Only when the quick-plug connector needs to be separated, the pin groove on the connector sleeve is aligned with the safety pin, and it can be separated smoothly. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the utility model;

[0013] Figure 2 This is a schematic diagram of the structure of the quick-insert inflatable connector of the utility model;

[0014] Figure 3 This is a schematic diagram of the structure of the quick-insert inflatable connector of the utility model after docking;

[0015] Figure 4 This is a schematic diagram of the overall structure of the utility model before docking;

[0016] Figure 5 This is a schematic diagram of the overall structure of the utility model after docking;

[0017] Figure 6 This is a schematic diagram of the structure of the air release valve of the utility model.

[0018] In the figure: 1 quick-plug connector, 2 safety pin, 3 gun body, 4 air release valve, 5 filter assembly, 6 inflation connector, 7 quick-plug inflation connector, 8 wire retaining ring, 9 steel ball, 10 protection ring, 11 sealing ring, 12 connector sleeve, 13 connector housing, 14 spring, 15 valve seat, 16 valve, 17 air release valve connector, 18 handle, 19 air outlet, 20 annular groove, 21 pin groove. DETAILED DESCRIPTION

[0019] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0020] See also Figure 1-6The utility model provides a technical solution: a quick-insertion inflation tool with a safety locking pin to prevent disengagement, comprising a quick-insertion connector 1, a gun body 3, an air release valve 4 and a quick-insertion inflation connector 7. The quick-insertion connector 1 comprises a connector sleeve 12 and a connector shell 13, the connector shell 13 is threadedly connected to the gun body 3, the connector sleeve 12 is sleeved on the connector shell 13, and a spring 14 is arranged between the connector shell 13 and the connector shell 13, a steel ball 9 is arranged in a trapezoidal hole opened in the circumferential direction of the left end of the connector shell 13, the steel ball 9 corresponds to the left end of the connector sleeve 12, the connector shell 13 is forced to move to the right, the connector sleeve 12 pushes the steel ball 9 to move inward, the connector sleeve 12 is reset under the action of the spring 14, the steel ball 9 rolls and locks the quick-insertion inflation connector 7, when not under force, the steel ball 9 is unlocked and is in a free state, an annular groove 20 is arranged in the circumferential direction of the quick-insertion inflation connector 7, when the quick-insertion inflation connector 7 is locked, the steel ball 9 is located in the annular groove 20, the connector sleeve 12 The right end of the gun body 3 is provided with a pin groove 21, and a safety pin 2 is provided on the outer surface of the gun body 3, which corresponds to the pin groove 21. Before docking, the safety pin 2 slides in the pin groove 21 of the joint sleeve 12 to unlock the steel ball 9, and docking and separation can be achieved at this time. After the quick-plug connector 1 is docked in place, the safety pin 2 can be disengaged from the pin groove 21 of the joint sleeve 12. If the safety pin 2 cannot be disengaged in the pin groove 21 after docking, it means that the quick-plug connector 1 is not docked in place at this time, and ventilation must be carried out after troubleshooting; only when the safety pin 2 is disengaged from the pin groove 21, it means that the quick-plug inflation connector 7 is docked with the quick-plug connector 1 in place, and the safety pin 2 limits the connector sleeve 12 to prevent accidental separation caused by misoperation, and the air release valve 4 is installed at the right end of the gun body 3, and the lower end of the gun body 3 is provided with a filter assembly 5 and an inflation connector 6. The filter assembly 5 is a conventional gas path conical filter structure, and the filter assembly 5 is arranged in the lower end airway of the gun body 3, and the inflation connector 6 is threadedly connected to the lower end of the gun body 3.

[0021] The deflation valve 4 includes a valve seat 15, a valve 16, a deflation valve connector 17 and a handle 18. The valve seat 15 is arranged in the gun body 3. The left end of the valve 16 is inserted into the valve seat 15. The deflation valve connector 17 is threadedly connected to the gun body 3, and the left end of the deflation valve connector 17 abuts against the valve seat 15. The handle 18 is threadedly connected to the deflation valve connector 17, and the right end of the handle 18 is threadedly connected to the valve 16. An outlet 19 is provided in the circumferential direction of the deflation valve connector 17. After the inflation is completed, the handle 18 is manually turned counterclockwise, and the internal valve 16 is opened to deflate. After the remaining high-pressure gas in the inflation pipeline is released, the inflation connector 6 can be safely separated. When the handle 18 is turned clockwise, the valve 16 and the valve seat 15 are metal-hard sealed, and the sealing is reliable, does not require any tools, and is easy to operate.

[0022] The right end of the quick-plug inflation connector 7 is set as a ladder structure, and a protective ring 10 and a sealing ring 11 are arranged on the inner wall of the connector shell 13. The right end of the quick-plug inflation connector 7 contacts the sealing ring 11 to form a sealing structure, and a wire retaining ring 8 is arranged in the outer circumferential direction of the left end of the connector shell 13. The internal sealing ring 11 and the protective ring 10 block the leakage of the medium to ensure the sealing of the connection, that is, the docking is completed; the function of the wire retaining ring 8 is to limit the connector sleeve 12 to prevent it from detaching. When separation is required, the quick-plug inflation connector 7 can be separated by the same operation.

[0023] The rear end of the inflation tool is connected to the ground gas source pipeline through the inflation connector 6, and the front end is connected to the quick-plug inflation connector 7 through the quick-plug connector 1 to realize the gas circuit connection, and the high-pressure gas from the gas source is filled into the gas cylinder of the gas-using equipment through the inflation tool. The filter assembly 5 is designed inside the inflation tool to filter out larger impurities in the air and prevent them from entering the system.

[0024] The basic principles, main features and advantages of the present invention are shown and described above. Without departing from the spirit and scope of the present invention, the present invention may also be subject to various changes and improvements, which are all within the scope of the present invention to be protected.

Claims

1. A quick-insert inflation tool with a safety locking pin to prevent disengagement, comprising a quick-insert connector (1), a gun body (3), an air release valve (4) and a quick-insert inflation connector (7), characterized in that: The quick-connect connector (1) comprises a connector sleeve (12) and a connector housing (13). The connector housing (13) is threadedly connected to a gun body (3). The connector sleeve (12) is sleeved on the connector housing (13). A spring (14) is arranged between the connector housings (13). A steel ball (9) is arranged in a trapezoidal hole opened in a circumferential direction at the left end of the connector housing (13). The steel ball (9) corresponds to the left end of the connector sleeve (12). A pin groove (21) is arranged at the right end of the connector sleeve (12). A safety pin (2) is arranged on the outer surface of the gun body (3). The safety pin (2) corresponds to the pin groove (21). An air release valve (4) is installed at the right end of the gun body (3).

2. A quick-insert inflation tool with a safety locking pin to prevent disengagement according to claim 1, characterized in that: An annular groove (20) is provided in the circumferential direction of the quick-insert inflation joint (7).

3. The quick-insert inflation tool with a safety locking pin for preventing disengagement according to claim 1, characterized in that: The air release valve (4) comprises a valve seat (15), a valve (16), an air release valve connector (17) and a handle (18). The valve seat (15) is arranged in the gun body (3). The left end of the valve (16) is inserted into the valve seat (15). The air release valve connector (17) is threadedly connected to the gun body (3). The left end of the air release valve connector (17) abuts against the valve seat (15). The handle (18) is threadedly connected to the air release valve connector (17). The right end of the handle (18) is threadedly connected to the valve (16). An air outlet (19) is provided in the circumferential direction of the air release valve connector (17).

4. The quick-insert inflation tool with a safety locking pin for preventing disengagement according to claim 1, characterized in that: A filter assembly (5) and an air charging connector (6) are provided at the lower end of the gun body (3); the filter assembly (5) is an air path conical filter structure; the filter assembly (5) is provided in the air passage at the lower end of the gun body (3); and the air charging connector (6) is threadedly connected to the lower end of the gun body (3).

5. The quick-insert inflation tool with a safety locking pin for preventing disengagement according to claim 1, characterized in that: The right end of the quick-insert air connector (7) is arranged in a ladder-shaped structure, a protective ring (10) and a sealing ring (11) are arranged on the inner wall of the connector housing (13), the right end of the quick-insert air connector (7) contacts the sealing ring (11) to form a sealing structure, and a steel wire retaining ring (8) is arranged in the outer circumferential direction of the left end of the connector housing (13).

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