A hydrant quick connect fitting

Abstract

The utility model discloses a fire hydrant quick connecting joint, the device includes the water outlet pipe, and the end of water outlet pipe is provided with the connecting unit, and the connecting unit includes the fixed base, the ball head connecting block and the connecting piece, the fixed base is fixed with the water outlet pipe, the ball head connecting block is rotatably connected in the inside of fixed base, and the inside of ball head connecting block is provided with the water channel for the water flow, and the connecting piece is fixed with ball head connecting block, and the connecting piece is used for connecting fire water pipe with water outlet pipe, and the device is rotatably connected with the fixed base through the ball head connecting block and is set up, and the buffer and sealing effect of cooperation elastic connecting block and elastic block and the mutual cooperation of connecting piece inside fender, boss and recess, effectively resist the external force effect that fire water pipe stretches, rotates and brings, avoid the loose of connecting head, solve the problem that the existing connecting head is easy to loosen.

Description

Technical Field

[0001] This utility model relates to the field of fire protection equipment technology, and in particular to a quick-connect connector for fire hydrants. Background Technology

[0002] In fire emergency rescue operations, fire hydrants, as vital water supply facilities, directly impact firefighting and rescue efficiency through the speed and stability of their connection to fire hoses. Quick-connect fittings for fire hydrants are key components for this connection, simplifying the process, reducing connection time, and enabling firefighters to quickly engage in firefighting efforts, thus gaining valuable time to control the spread of fire.

[0003] Due to the complex environment at fire-fighting sites, fire hoses are subjected to tensile and rotational forces during installation and use, which are transmitted to the joints. Under prolonged or frequent tensile and rotational stress, the existing joint structure is prone to loosening, leading to a decrease in the sealing performance between the fire hose and the fire hydrant outlet pipe, and consequently, leakage problems, thus presenting limitations.

[0004] The reason for this problem is that most existing connectors use rigid connection methods and lack effective buffer and self-adjusting structures. When the fire water pipe is subjected to tensile or rotational external forces, the external forces cannot be effectively relieved and act directly on the connection parts, causing the fit gap between the connecting parts to gradually increase and eventually loosen. Utility Model Content

[0005] The purpose of this invention is to provide a quick-connect fitting for fire hydrants to solve the problems mentioned in the background section.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a quick-connect fitting for a fire hydrant, comprising a water outlet pipe, wherein a connecting unit is provided at the end of the water outlet pipe, and the connecting unit comprises a fixing seat, a ball-head connecting block, and a connector;

[0007] The fixed base is fixedly assembled with the water outlet pipe, the ball head connecting block is rotatably connected inside the fixed base, the ball head connecting block has a water channel for water flow inside, the connecting piece is fixedly assembled on the ball head connecting block, and the connecting piece is used to connect the fire water pipe and the water outlet pipe.

[0008] Preferably, the connector includes a connector head and a slot;

[0009] The slot is located inside the connector.

[0010] Preferably, the connector further includes a stop bar and a protrusion;

[0011] The stop bar is fixedly assembled at both ends inside the slot; the protrusion is fixedly assembled on both sides inside the slot.

[0012] Preferably, the connector further includes a groove;

[0013] The groove is formed inside the protrusion, and the stop bar is movably engaged inside the groove.

[0014] Preferably, the fixed base has a ball socket inside, and the ball head connecting block is rotatably connected inside the ball socket.

[0015] Preferably, an elastic connecting block is fixedly assembled at the end of the ball head connecting block, and the end of the elastic connecting block is fixedly connected to the fixed seat.

[0016] Preferably, an elastic block is fixedly fitted inside the ball socket, and the elastic block is in close contact with the outer surface of the ball head connecting block.

[0017] The technical effects and advantages of this utility model are as follows:

[0018] This device effectively resists the external forces caused by the stretching and rotation of the fire water pipe by setting up a rotating connection structure between the ball head connecting block and the fixed seat, combined with the buffering and sealing effects of the elastic connecting block and the elastic block, as well as the mutual cooperation of the internal baffle, protrusion and groove of the connector, thus preventing the connector from loosening and solving the problem of easy loosening of existing connectors. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a side view of the water outlet pipe of this utility model;

[0021] Figure 3 This is a schematic diagram of the connector of this utility model;

[0022] Figure 4 This is a schematic diagram of the connection unit of this utility model.

[0023] In the diagram: 1. Water outlet pipe; 2. Connecting unit; 21. Fixing base; 22. Ball head connecting block; 23. Connector; 231. Connector head; 232. Slot; 233. Stop bar; 234. Protrusion; 235. Groove; 24. Ball socket; 25. Elastic connecting block; 26. Elastic block. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] This utility model provides, for example Figure 1 , Figure 2 and Figure 4 The fire hydrant quick-connect coupling shown includes a water outlet pipe 1, and a connection unit 2 is provided at the end of the water outlet pipe 1. The connection unit 2 includes a fixing seat 21, a ball head connecting block 22, and a connector 23.

[0026] The fixed base 21 is fixedly assembled with the water outlet pipe 1. The ball head connecting block 22 is rotatably connected inside the fixed base 21. The ball head connecting block 22 has a water channel for water flow inside. The connector 23 is fixedly assembled on the ball head connecting block 22. The connector 23 is used to connect the fire water pipe to the water outlet pipe 1.

[0027] The fixed base 21 has a ball socket 24 inside, and the ball head connecting block 22 is rotatably connected inside the ball socket 24. An elastic connecting block 25 is fixedly fitted to the end of the ball head connecting block 22, and the end of the elastic connecting block 25 is fixedly connected to the fixed base 21. An elastic block 26 is fixedly fitted inside the ball socket 24, and the elastic block 26 is in close contact with the outer surface of the ball head connecting block 22.

[0028] Example 1: In this example, the fixed base 21 is fixedly connected to the outlet pipe 1; the ball head connecting block 22 is rotatably assembled in the fixed base 21 through the ball socket 24, and can rotate in multiple directions according to the stress of the fire water pipe, avoiding the external force generated by the stretching and rotation of the water pipe from directly acting on the connection part; the elastic block 26 in the ball socket 24 fits tightly with the ball head connecting block 22, which not only ensures the sealing between the two to prevent water leakage, but also buffers the impact of external force through elastic deformation, while providing appropriate damping to prevent the ball head connecting block 22 from rotating arbitrarily; the elastic connecting block 25 at the end of the ball head connecting block 22 connects to the fixed base 21, further enhancing the buffering effect, and providing a restoring force for the ball head connecting block 22 when there is no external force, ensuring the stability of the connection structure; the water channel inside the ball head connecting block 22 realizes the water flow between the outlet pipe 1 and the fire water pipe, meeting the fire water supply needs.

[0029] like Figure 3 The fire hydrant quick-connect coupling shown includes a water outlet pipe 1, and a connection unit 2 is provided at the end of the water outlet pipe 1. The connection unit 2 includes a fixing seat 21, a ball head connecting block 22, and a connector 23.

[0030] The fixed base 21 is fixedly assembled with the water outlet pipe 1. The ball head connecting block 22 is rotatably connected inside the fixed base 21. The ball head connecting block 22 has a water channel for water flow inside. The connector 23 is fixedly assembled on the ball head connecting block 22. The connector 23 is used to connect the fire water pipe to the water outlet pipe 1.

[0031] The connector 23 includes a connector head 231 and a slot 232; the slot 232 is formed inside the connector head 231. The connector 23 also includes a stop bar 233 and a protrusion 234; the stop bar 233 is fixedly assembled at both ends inside the slot 232; the protrusion 234 is fixedly assembled at both sides inside the slot 232. The connector 23 also includes a groove 235; the groove 235 is formed inside the protrusion 234, and the stop bar 233 is movably engaged inside the groove 235.

[0032] Example 2: In this example, the connector 23 is fixed to the ball-head connector 22 via the connector head 231. The size of the connector head 231 is adapted to the end of the fire water pipe for quick alignment. During connection, the corresponding structure of the fire water pipe end is inserted into the slot 232 inside the connector head 231. It should be noted that the structure of the fire water pipe end is consistent with the structure of the connector 23. The retaining strips 233 at both ends of the slot 232 directly limit the axial movement of the water pipe end to prevent the water pipe from coming out axially under force. The protrusions 234 on both sides of the slot 232 contact the surface of the water pipe, increasing the friction between them and further improving the connection stability. At the same time, the retaining strips 233 are movably engaged in the grooves 235 inside the protrusions 234, so that the retaining strips 233 and the protrusions 234 form a mutually supporting structure, enhancing the overall resistance of the connector 23 to external forces and preventing deformation or loosening of the connector 23 itself due to water pipe stretching or rotation, ensuring that the fire water pipe and the outlet pipe 1 always maintain a stable connection.

[0033] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A quick-connect fitting for a fire hydrant, comprising a water outlet pipe (1), characterized in that, The end of the water outlet pipe (1) is provided with a connecting unit (2), which includes a fixing base (21), a ball head connecting block (22), and a connector (23). The fixed base (21) is fixedly assembled with the water outlet pipe (1), the ball head connecting block (22) is rotatably connected inside the fixed base (21), the ball head connecting block (22) has a water channel for water flow inside, the connector (23) is fixedly assembled on the ball head connecting block (22), and the connector (23) is used to connect the fire water pipe and the water outlet pipe (1).

2. The quick-connect coupling for a fire hydrant according to claim 1, characterized in that, The connector (23) includes: Connector (231); The card slot (232) is located inside the connector (231).

3. A quick-connect coupling for fire hydrants according to claim 2, characterized in that, The connector (23) also includes: The stop bar (233) is fixedly mounted at both ends inside the slot (232); The protrusion (234) is fixedly mounted on both sides inside the slot (232).

4. A quick-connect coupling for fire hydrants according to claim 3, characterized in that, The connector (23) also includes: A groove (235) is formed inside the protrusion (234), and the stop bar (233) is movably engaged inside the groove (235).

5. A quick-connect coupling for fire hydrants according to claim 1, characterized in that, The fixed base (21) has a ball socket (24) inside, and the ball head connecting block (22) is rotatably connected to the inside of the ball socket (24).

6. A quick-connect coupling for fire hydrants according to claim 1, characterized in that, The end of the ball head connecting block (22) is fixedly fitted with an elastic connecting block (25), and the end of the elastic connecting block (25) is fixedly connected to the fixed seat (21).

7. A quick-connect coupling for fire hydrants according to claim 5, characterized in that, An elastic block (26) is fixedly fitted inside the ball socket (24), and the elastic block (26) is in close contact with the outer surface of the ball head connecting block (22).

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