Fire-fighting lance connecting structure

Abstract

The utility model discloses a fire-fighting lance connecting structure, particularly relates to the technical field of fire-fighting lances, and comprises a fire-fighting lance body, and a lance connector is arranged at one end of the fire-fighting lance body. The first baffle ring, the second baffle ring, the clamping ring, the clamping groove, the sealing groove and the like are arranged between the water gun connector and the water hose connector, so that the two connectors can be in double clamping fit inside and outside, and the water hose connector and the water gun connector can be tightly combined; the sealing performance between the fire-fighting lance body and the water hose is greatly improved; u-shaped clamping plates and a positioning assembly are arranged between the first baffle ring and the second baffle ring, so that the U-shaped clamping plates can be firmly clamped between the first baffle ring and the second baffle ring, and the stability between the fire-fighting lance body and the water hose can be further enhanced under the limiting and reinforcing effects of the U-shaped clamping plates; therefore, the connection structure is effectively prevented from being loosened and separated, and the safety in use is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fire-fighting water guns, in particular to a fire-fighting water gun connection structure. Background Art

[0002] Fire hose is a water-spraying tool for firefighting. When connected with a hose, it will spray dense and full water flow. It has the advantages of long range and large water volume. According to the different forms and characteristics of the jet, it can be divided into direct current water gun, spray water gun and multi-purpose water gun, among which the commonly used water guns are direct current and spray water gun.

[0003] At present, when a fire hose is in use, the water inlet port of the hose is usually screwed together with the hose interface through a thread to achieve a quick connection between the hose and the fire hose. However, in actual use, it is difficult to effectively ensure the stability and tightness of the connection structure through a single threaded connection method. With the back and forth movement when holding the hose and the impact of the internal water flow, the thread is easily deflected, causing the connection to loosen, greatly affecting the safety during use. Utility Model Content

[0004] The purpose of the utility model is to provide a fire-fighting water gun connecting structure, by arranging a first retaining ring, a second retaining ring, a clamping ring, a clamping groove and a sealing groove and other structures between the water gun connecting head and the water hose connecting head, a double clamping fit can be performed between the inside and outside of the two joints, thereby realizing a close connection between the water hose connecting head and the water gun connecting head, thereby greatly improving the sealing between the fire-fighting water gun body and the water hose; and by arranging a U-shaped clamping plate and a positioning assembly between the first retaining ring and the second retaining ring, the U-shaped clamping plate can be firmly clamped between the first retaining ring and the second retaining ring, and under the limiting reinforcement of multiple groups of U-shaped clamping plates, the stability between the fire-fighting water gun body and the water hose can be further enhanced, thereby effectively preventing the connection structure from loosening and separating, greatly improving the safety during use, so as to solve the above-mentioned deficiencies in the technology.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a fire hose connection structure, comprising:

[0006] A fire-fighting water gun body, wherein one end of the fire-fighting water gun body is provided with a water gun connector, one end of the water gun connector is connected to a water hose connector, and a threaded connection structure is provided between the water hose connector and the water gun connector;

[0007] An anti-slip reinforcement mechanism comprises a first retaining ring fixed at the end of a water gun connector, a second retaining ring is fixed at one end of the water hose connector, and a clamping assembly is provided between the first retaining ring and the second retaining ring, a plurality of U-shaped clamping plates are hingedly connected to an outer annular array of the first retaining ring, and a positioning assembly is provided at one end of the U-shaped clamping plate.

[0008] Preferably, the threaded connection structure includes an internal thread layer arranged on the inner side of the water gun connector, and an external thread layer matching the internal thread layer is arranged on the outer side of the water hose connector.

[0009] Preferably, the positioning assembly includes a spring fixed to the inner side of the U-shaped clamping plate at one end relative to the first retaining ring, and the spring is connected to a positioning block at one end relative to the U-shaped clamping plate.

[0010] Preferably, the outer wall of the U-shaped clamping plate is sleeved with a U-shaped arm, and one end of the U-shaped arm is fixedly connected to the positioning block.

[0011] Preferably, the clamping assembly includes a clamping ring fixed on the outside of the first retaining ring, and a clamping groove facing the clamping ring is formed on one side of the second retaining ring.

[0012] Preferably, a sealing groove is provided on a side of the port of the water gun connector close to the internal thread layer, and a rubber ring is sleeved on the outside of the water hose connector, and the rubber ring matches the sealing groove.

[0013] Preferably, a U-shaped handle is provided in the middle of the top side of the fire hose body.

[0014] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0015] By arranging a first retaining ring, a second retaining ring, a clamping ring, a clamping groove and a sealing groove between the water gun connector and the water hose connector, a double clamping fit can be achieved between the inside and outside of the two connectors, thereby achieving a close connection between the water hose connector and the water gun connector, thereby greatly improving the sealing between the fire water gun body and the water hose; and by arranging a U-shaped clamping plate and a positioning assembly between the first retaining ring and the second retaining ring, the U-shaped clamping plate can be firmly clamped between the first retaining ring and the second retaining ring. Under the limiting reinforcement of multiple sets of U-shaped clamping plates, the stability between the fire water gun body and the water hose can be further enhanced, thereby effectively preventing the loosening and separation of the connection structure, thereby greatly improving the safety during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the separation structure of the fire hose body and the hose connector of the utility model;

[0019] Figure 3 It is a longitudinal cross-sectional view of the water gun connector and the first retaining ring of the utility model;

[0020] Figure 4 It is a longitudinal cross-sectional view of the hose connector and the second retaining ring of the utility model;

[0021] Figure 5 It is a schematic diagram of the connection structure of the U-shaped clamping plate and the positioning block of the utility model.

[0022] Description of reference numerals:

[0023] 1. Fire hose body; 2. Fire hose connector; 3. First retaining ring; 5. Second retaining ring; 6. Internal thread layer; 7. External thread layer; 8. Sealing groove; 9. Rubber ring; 10. Snap ring; 11. Slot; 12. U-shaped clip; 13. Spring; 14. Positioning block; 15. U-shaped arm. DETAILED DESCRIPTION

[0024] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0025] The utility model provides Figure 1-Figure 5 A fire hose connection structure shown includes:

[0026] A fire-fighting water gun body 1, one end of which is provided with a water gun connector 2, one end of which is connected with a hose connector 3, and a threaded connection structure is provided between the hose connector 3 and the water gun connector 2;

[0027] The threaded connection structure includes an internal thread layer 6 arranged on the inner side of the water gun connector 2 , and an external thread layer 7 matching the internal thread layer 6 is arranged on the outer side of the water hose connector 3 .

[0028] A U-shaped handle is provided in the middle of the top side of the fire-fighting water gun body 1. The U-shaped handle facilitates the lifting of the fire-fighting water gun body 1.

[0029] The anti-slip reinforcement mechanism includes a first retaining ring 4 fixed at the end of the water gun connector 2, a second retaining ring 5 is fixed at one end of the water hose connector 3, and a clamping assembly is provided between the first retaining ring 4 and the second retaining ring 5, and a plurality of U-shaped clamping plates 12 are hingedly connected to the outer annular array of the first retaining ring 4, and a positioning assembly is provided at one end of the U-shaped clamping plate 12.

[0030] The clamping assembly comprises a clamping ring 10 fixed on the outside of the first retaining ring 4 , and a clamping groove 11 facing the clamping ring 10 is formed on one side of the second retaining ring 5 .

[0031] A sealing groove 8 is provided on one side of the port of the water gun connector 2 close to the internal thread layer 6 , and a rubber ring 9 is sleeved on the outside of the water hose connector 3 , and the rubber ring 9 matches the sealing groove 8 .

[0032] When in use, the hose connector 3 can be aligned and inserted into the water gun connector 2, and the internal thread layer 6 and the external thread layer 7 can be screwed together to achieve rapid fixation between the hose connector 3 and the water gun connector 2;

[0033] At this time, the first retaining ring 4 and the second retaining ring 5 are pressed against each other, and the retaining ring 10 on the first retaining ring 4 is inserted into the retaining groove 11 on the second retaining ring 5, and the rubber ring 9 arranged on the outer shell of the water hose connector 3 can be squeezed into the sealing groove 8 at the port of the water gun connector 2. Under the close cooperation of the internal and external double structures, the water hose connector 3 and the water gun connector 2 can be closely combined, thereby greatly improving the sealing between the fire hose body 1 and the water hose.

[0034] The positioning assembly includes a spring 13 fixed to the inner side of the U-shaped clamping plate 12 at one end opposite to the first retaining ring 4 , and a positioning block 14 is connected to one end of the spring 13 opposite to the U-shaped clamping plate 12 .

[0035] A U-shaped arm 15 is sleeved on the outer wall of the U-shaped clamping plate 12 , and one end of the U-shaped arm 15 is fixedly connected to the positioning block 14 .

[0036] After the water hose connector 3 is connected to the water gun connector 2, the U-shaped clips 12 on the first retaining ring 4 can be rotated respectively, and the U-shaped arm 15 on the U-shaped clip 12 can be pulled, so that the U-shaped arm 15 drives the positioning block 14 to squeeze the spring 13. When the U-shaped clip 12 is stuck between the first retaining ring 4 and the second retaining ring 5, the positioning block 14 can be reset and pressed against the side of the second retaining ring 5 under the rebound of the spring 13, so that the U-shaped clip 12 can be firmly clamped between the first retaining ring 4 and the second retaining ring 5. Under the limiting reinforcement of multiple groups of U-shaped clips 12, the stability between the fire hose body 1 and the water hose can be further strengthened, effectively preventing the loosening and separation of the connection structure, and greatly improving the safety during use.

[0037] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A fire hose connection structure, characterized in that: include: A fire-fighting water gun body (1), wherein one end of the fire-fighting water gun body (1) is provided with a water gun connector (2), one end of the water gun connector (2) is connected to a water hose connector (3), and a threaded connection structure is provided between the water hose connector (3) and the water gun connector (2); An anti-slip reinforcement mechanism, the anti-slip reinforcement mechanism comprises a first retaining ring (4) fixed to the end of a water gun connector (2), a second retaining ring (5) fixed to one end of the water hose connector (3), and a clamping assembly is provided between the first retaining ring (4) and the second retaining ring (5), a plurality of U-shaped clamping plates (12) are hingedly connected in an annular array on the outer side of the first retaining ring (4), and a positioning assembly is provided at one end of the U-shaped clamping plate (12).

2. A fire hose connection structure according to claim 1, characterized in that: The threaded connection structure comprises an internal thread layer (6) arranged on the inner side of the water gun connector (2), and an external thread layer (7) matching the internal thread layer (6) is arranged on the outer side of the water hose connector (3).

3. A fire hose connection structure according to claim 1, characterized in that: The positioning assembly comprises a spring (13) fixed to one end of the inner side of the U-shaped clamping plate (12) relative to the first retaining ring (4); the end of the spring (13) relative to the U-shaped clamping plate (12) is connected to a positioning block (14).

4. A fire-fighting water gun connection structure according to claim 3, characterized in that: The outer wall of the U-shaped clamping plate (12) is sleeved with a U-shaped arm (15), and one end of the U-shaped arm (15) is fixedly connected to the positioning block (14).

5. A fire-fighting water gun connection structure according to claim 1, characterized in that: The clamping assembly comprises a clamping ring (10) fixed on the outside of a first retaining ring (4); and a clamping groove (11) facing the clamping ring (10) is formed on one side of the second retaining ring (5).

6. A fire hose connection structure according to claim 2, characterized in that: A sealing groove (8) is provided on one side of the port of the water gun connector (2) close to the internal thread layer (6), and a rubber ring (9) is sleeved on the outside of the water hose connector (3), and the rubber ring (9) matches the sealing groove (8).

7. A fire hose connection structure according to claim 1, characterized in that: A U-shaped handle is provided in the middle of the top side of the fire-fighting water gun body (1).

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