Quick air valve connector

Abstract

The utility model discloses a quick air valve connector which comprises a center block, three connecting heads are fixedly arranged on the side surface of the center block, one end of each connecting head is provided with a first connecting plug, a second connecting plug and a rotary connector, one end of each rotary connector is connected with a spring tube, one end of each spring tube is fixedly connected with a third connecting plug, and the other end of each spring tube is fixedly connected with a second connecting plug. A switching mechanism is arranged on the surface of the center block, and airflow guiding is controlled in a rotating mode. According to the quick air valve connector, the mode that the switching mechanism is arranged on the surface of the center block is adopted, so that a rescue worker can switch the communication state among a first inserting head, a second inserting head and a rotary joint by rotating a switching disc in the rescue process; therefore, a rescue worker can control connection and disconnection between a rescue vehicle gas circuit and a fault vehicle gas circuit without repeatedly plugging and unplugging a third plug connector to be connected with the fault vehicle, and the rescue speed of the fault vehicle is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of gas valve connectors, in particular to a quick-acting gas valve connector. Background Art

[0002] Semi-trailers are the main vehicles for road transportation and often travel on highways. There is a cargo box at the back of the semi-trailer. This container has no power, and the power is provided by the front of the semi-trailer. Although there is no electricity in the container, the wheels on the container are equipped with brakes. If there is a problem with the brakes on the container, the wheels of the container may be locked. Therefore, when the brakes of the semi-trailer are locked, it is necessary to check whether there are problems with the air pressure and air circuit of the brake system. Unlike a family car, the brake system of the semi-trailer relies on high-pressure gas to transmit force. When the air pressure of the brake system is abnormal, the wheels on the container may It may lock. When a heavy-duty semi-trailer locks due to brake failure, it is necessary to use the air circuit of the rescue vehicle to provide air pressure to the brake system of the faulty vehicle to release the brake lock of the faulty vehicle to facilitate towing the faulty vehicle. However, in the process of connecting the air circuit of the rescue vehicle with the air circuit of the faulty vehicle, it is necessary to repeatedly confirm whether the air circuit of the faulty vehicle is stably connected to the air circuit of the rescue vehicle during the connection process, and the connection status needs to be switched multiple times during the connection process to facilitate the movement of the rescue vehicle. Such an operation process prolongs the overall rescue time and is not conducive to quickly clearing the road and restoring normal road traffic. Utility Model Content

[0003] The utility model aims to provide a quick-release air valve connector to solve the problem of slow, time-consuming and labor-intensive brake release when rescuing a large truck in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a quick-type air valve connector, comprising a center block, three connectors are fixedly arranged on the side surface of the center block, and one end of the three connectors is respectively installed with a first plug connector, a second plug connector and a rotary connector, one end of the rotary connector is connected to a spring tube, and one end of the spring tube is fixedly connected to a third plug connector, and a switching mechanism is arranged on the surface of the center block to control the airflow guide by rotation.

[0005] Preferably, the switching mechanism includes: a switching roller, the outer surface of which is provided with a connecting groove, a flow limiting groove and a guide groove, the end of the center block facing the rotary joint is designed to be open, and a baffle is fixedly provided on the end of the center block facing the rotary joint, a rotating switching disk is installed on the side surface of one end of the center block, and a clamping rod is slidably installed on the side surface of the switching disk, and a limiting seat is fixedly provided on the side surface of one end of the center block where the switching disk is installed.

[0006] By adopting the above technical solution, the connection states among the first plug connector, the second plug connector and the rotary connector can be switched.

[0007] Preferably, a display mechanism is provided on the outer surface of one end of the connector connected to the central block, and the pressure condition inside the connector is visually displayed in a pressure-driven manner.

[0008] By adopting the above technical solution, rescuers can observe whether there is high-pressure air inside the first plug connector, the second plug connector and the rotary connector.

[0009] Preferably, the display mechanism comprises: a display column, which is fixedly arranged on the outer surface of the connecting head, and a piston column is arranged inside the display column, and a color display groove is opened on the upper end side surface of the display column.

[0010] By adopting the above technical solution, the paint applied through the color developing groove is exposed so that the rescue personnel can clearly observe the pressure status inside the first plug connector, the second plug connector and the rotary connector at this time.

[0011] Preferably, the first plug connector, the second plug connector and the rotary connector are respectively threadedly connected to the connecting heads where they are located, and adjacent connecting heads are arranged perpendicular to each other.

[0012] By adopting the above technical solution, the connector can be stably fixedly installed with the first plug connector, the second plug connector and the rotary connector.

[0013] Preferably, the outer surface of the switching roller is fitted with the inner surface of the center block, the connecting groove and the flow limiting groove are distributed in a cross-shaped staggered manner, the guide groove is L-shaped, and one end of the guide groove passes through the inner surface of the connecting groove, and the other end of the guide groove passes through the side surface of one end of the switching roller facing the baffle, the baffle is semicircular, and the side surface of the baffle is fitted with one end of the switching roller, the rotating shaft of the switching disk passes through the inner surface of the center block and is fixedly connected to the rotating shaft of the switching roller, the clamping rod is L-shaped, and one end of the clamping rod protrudes from the outer surface of the switching disk, a spring is connected between the clamping rod and the switching disk, and one end of the clamping rod is clamped and connected with the limiting seat.

[0014] By adopting the above technical solution, the switching disk cannot rotate at will due to the engagement between the clamping rod and the limit seat.

[0015] Preferably, the display column and the piston column are connected by sliding friction, and a spring is connected between the display column and the piston column, and the upper end of the display column is hollowed out, and the lower end of the display column passes through the inner surface of the connector.

[0016] By adopting the above technical solution, the display column can expose the color display groove through the hollow part.

[0017] Compared with the prior art, the utility model has the following beneficial effects: the quick-acting gas valve connector:

[0018] 1. By setting a switching mechanism on the surface of the center block, the rescuers can switch the connection status between the first plug connector, the second plug connector and the rotary connector by rotating the switching disk during the rescue process, so that the rescuers can control the connection and disconnection between the gas circuit of the rescue vehicle and the gas circuit of the faulty vehicle without repeatedly plugging and unplugging the connection between the third plug connector and the faulty vehicle, thereby speeding up the rescue of the faulty vehicle;

[0019] 2. Furthermore, a display column is provided on the surface of the connector, and the piston column is pushed out by increasing the internal pressure of the connector, so that the color display groove at the upper end of the piston column can be exposed through the hollow part at the upper end of the display column, so as to facilitate rescue personnel to check the connection status of each connector. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the three-dimensional structure of the central block and the connector of the utility model;

[0022] Figure 3 This is a schematic diagram of the three-dimensional structure of the connection between the clamping rod and the limiting seat of the utility model;

[0023] Figure 4 It is a three-dimensional structural schematic diagram of the cross-section surface connecting the central block and the connecting groove of the utility model;

[0024] Figure 5 This is a three-dimensional structural schematic diagram of the cut surface of the connection between the display column and the piston column of the utility model;

[0025] Figure 6 It is a three-dimensional structural schematic diagram of the cross-section surface connecting the switching roller and the connecting groove of the utility model.

[0026] In the figure: 1. center block; 2. connector; 3. first plug connector; 4. second plug connector; 5. rotary connector; 6. spring tube; 7. third plug connector; 8. switching roller; 9. connecting groove; 10. flow limiting groove; 11. flow guide groove; 12. baffle; 13. switching disk; 14. clamping rod; 15. limit seat; 16. display column; 17. piston column; 18. color display groove. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] See also Figure 1-6 The utility model provides a technical solution: a quick-type gas valve connector.

[0029] Embodiment 1

[0030] The embodiment discloses: a central block 1, three connectors 2 are fixedly arranged on the side surface of the central block 1, and one end of the three connectors 2 is respectively installed with a first plug connector 3, a second plug connector 4 and a rotary connector 5, one end of the rotary connector 5 is connected to a spring tube 6, and one end of the spring tube 6 is fixedly connected to a third plug connector 7, and a switching mechanism is arranged on the surface of the central block 1 to control the airflow guide by rotating;

[0031] The first plug connector 3, the second plug connector 4 and the rotary connector 5 are respectively threadedly connected to the respective connectors 2, and adjacent connectors 2 are arranged perpendicular to each other;

[0032] The switching mechanism comprises: a switching roller 8, the outer surface of which is provided with a connecting groove 9, a flow limiting groove 10 and a flow guiding groove 11, the end of the center block 1 facing the rotary joint 5 is designed to be open, and a baffle 12 is fixedly provided on the end of the center block 1 facing the rotary joint 5, a rotating switching disk 13 is installed on the side surface of one end of the center block 1, and a clamping rod 14 is slidably installed on the side surface of the switching disk 13, and a limiting seat 15 is fixedly provided on the side surface of one end of the center block 1 on which the switching disk 13 is installed;

[0033] The outer surface of the switching roller 8 fits with the inner surface of the center block 1, the connecting groove 9 and the limiting groove 10 are staggered in a cross shape, the guide groove 11 is L-shaped, and one end of the guide groove 11 passes through the inner surface of the connecting groove 9, and the other end of the guide groove 11 passes through the side surface of one end of the switching roller 8 facing the baffle 12, the baffle 12 is semicircular, and the side surface of the baffle 12 fits with one end of the switching roller 8, the rotating shaft of the switching disk 13 passes through the inner surface of the center block 1 and is fixedly connected to the rotating shaft of the switching roller 8, the clamping rod 14 is L-shaped, and one end of the clamping rod 14 protrudes from the outer surface of the switching disk 13, a spring is connected between the clamping rod 14 and the switching disk 13, and one end of the clamping rod 14 is clamped and connected with the limiting seat 15;

[0034] During use, first connect the first plug connector 3 to the air outlet of the rescue vehicle, then connect the second plug connector 4 to the air inlet of the rescue vehicle's air circuit, and then connect the third plug connector 7 to the air inlet of the faulty vehicle's air circuit. At this time, slide the clamping rod 14 to disengage the clamping rod 14 from the limit seat 15, and rotate the switching disk 13 to drive the switching roller 8 to rotate until the guide groove 11 and the baffle 12 are misaligned. At this time, high-pressure air flows through the first plug connector 3 through the connector 2 and the center block 1 to the second plug connector 4. During the process, the high-pressure air flows out through the connecting groove 9 and the guide groove 11 and is conducted to the rotary connector 5. The high-pressure air finally enters the air circuit of the faulty vehicle through the third plug connector 7 through the rotary connector 5 and the spring tube 6, completing the connection between the air circuit of the faulty vehicle and the air circuit of the rescue vehicle.

[0035] When it is necessary to cut off the connection between the gas circuit of the faulty vehicle and the gas circuit of the rescue vehicle, the switching disk 13 is rotated so that the switching roller 8 drives the flow limiting groove 10 to rotate and connect with the connectors 2 on both sides. At this time, the connecting groove 9 loses the connection with the connectors 2 on both sides and stops delivering high-pressure air to the faulty vehicle through the third plug connector 7;

[0036] When it is necessary to maintain the air connection of the rescue vehicle and cut off the air connection of the faulty vehicle, the switching disk 13 is rotated so that the switching roller 8 drives the guide groove 11 to rotate and is blocked by the baffle 12. At this time, the high-pressure air is transmitted to the second plug connector 4 through the first plug connector 3 and will not be transmitted to the rotary joint 5.

[0037] Embodiment 2

[0038] This embodiment is disclosed on the basis of the embodiment 1: a display mechanism is provided on the outer surface of one end of the connector 2 connected to the central block 1, and the pressure condition inside the connector 2 is visually displayed in a pressure-driven manner;

[0039] The display mechanism includes: a display column 16, which is fixedly arranged on the outer surface of the connector 2, and a piston column 17 is arranged inside the display column 16, and a color display groove 18 is opened on the upper side surface of the display column 16;

[0040] The display column 16 and the piston column 17 are connected by sliding friction, and a spring is connected between the display column 16 and the piston column 17. The upper end of the display column 16 is hollow, and the lower end of the display column 16 passes through the inner surface of the connector 2.

[0041] During the connection process, when there is high-pressure air in the connecting head 2 on one side, the pressure pushes the piston column 17 to slide relative to the display column 16, so that the color display groove 18 at the upper end of the piston column 17 is exposed through the hollow part at the upper end of the display column 16. The color of the paint pre-applied in the color display groove 18 helps rescue personnel observe the internal pressure conditions of the connecting head 2.

[0042] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A quick-acting gas valve connector, comprising a center block (1), wherein three connectors (2) are fixedly arranged on the side surface of the center block (1), and one end of the three connectors (2) is respectively installed with a first plug connector (3), a second plug connector (4) and a rotary connector (5), one end of the rotary connector (5) is connected to a spring tube (6), and one end of the spring tube (6) is fixedly connected to a third plug connector (7), characterized in that: The surface of the central block (1) is provided with a switching mechanism, which controls the airflow direction by means of rotation.

2. A quick-acting gas valve connector according to claim 1, characterized in that: The switching mechanism comprises: a switching roller (8), the outer surface of which is provided with a connecting groove (9), a flow limiting groove (10) and a flow guiding groove (11); the end of the center block (1) facing the rotary joint (5) is designed to be open, and a baffle (12) is fixedly arranged on the end of the center block (1) facing the rotary joint (5); a rotating switching disk (13) is installed on the side surface of one end of the center block (1), and a clamping rod (14) is slidably installed on the side surface of the switching disk (13); and a limiting seat (15) is fixedly arranged on the side surface of one end of the center block (1) on which the switching disk (13) is installed.

3. A quick-acting gas valve connector according to claim 1, characterized in that: A display mechanism is provided on the outer surface of one end of the connector (2) connected to the central block (1), and the pressure condition inside the connector (2) is visually displayed in a pressure-driven manner.

4. A quick-acting gas valve connector according to claim 3, characterized in that: The display mechanism comprises: a display column (16), the display column (16) is fixedly arranged on the outer surface of the connecting head (2), a piston column (17) is arranged inside the display column (16), and a color display groove (18) is opened on the upper end side surface of the display column (16).

5. The quick-acting gas valve connector according to claim 1, characterized in that: The first plug connector (3), the second plug connector (4) and the rotary connector (5) are respectively threadedly connected to the respective connecting heads (2), and adjacent connecting heads (2) are arranged perpendicular to each other.

6. A quick-acting gas valve connector according to claim 2, characterized in that: The outer surface of the switching roller (8) is fitted with the inner surface of the center block (1); the connecting groove (9) and the flow limiting groove (10) are staggered in a cross shape; the guide groove (11) is L-shaped, and one end of the guide groove (11) passes through the inner surface of the connecting groove (9), and the other end of the guide groove (11) passes through the side surface of one end of the switching roller (8) facing the baffle (12); the baffle (12) is semicircular, and the side surface of the baffle (12) is fitted with one end of the switching roller (8); the rotating shaft of the switching disk (13) passes through the inner surface of the center block (1) and is fixedly connected to the rotating shaft of the switching roller (8); the clamping rod (14) is L-shaped, and one end of the clamping rod (14) protrudes from the outer surface of the switching disk (13); a spring is connected between the clamping rod (14) and the switching disk (13), and one end of the clamping rod (14) is clamped and connected with the limiting seat (15).

7. A quick-acting gas valve connector according to claim 4, characterized in that: The display column (16) and the piston column (17) are connected by sliding friction, and a spring is connected between the display column (16) and the piston column (17). The upper end of the display column (16) is hollow-out, and the lower end of the display column (16) passes through the inner surface of the connector (2).

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