Fire hose connection structure

Abstract

The utility model discloses a fire -fighting lance connecting structure, apply to water gun body, be used for connecting water gun body and water hose, one end of water gun body is linked with first connecting pipe, still include second connecting pipe, abutment ring, a plurality of fixed frame and abutting mechanism, second connecting pipe is detachably arranged in first connecting pipe through quick -release subassembly, one end of second connecting pipe is linked with water hose, and abutment ring is sleeved on water hose, and a plurality of fixed frame are arranged on first connecting pipe circumference, and abutting mechanism sets up on fixed frame, is used for abutting tightly abutment ring, and the rubber cover is sleeved on second connecting pipe, and the outside wall of rubber cover abuts with the inner wall of sliding slot, and the inside diameter of first connecting pipe, second connecting pipe and water hose is same. The fire -fighting lance connecting structure is used to solve the problem that the prior art in the background art only through single thread connection mode is difficult to effectively guarantee the stability and compactness of connecting structure.

Description

Technical Field

[0001] This utility model relates to the field of fire hose technology, specifically to a fire hose connection structure. Background Technology

[0002] Fire hoses are water-spraying tools used for extinguishing fires. When connected to a fire hose, they spray a dense and powerful stream of water. They have advantages such as long range and large water volume. Based on different jet patterns and characteristics, they can be divided into straight stream hoses, spray hoses, and multi-purpose hoses, among which straight stream hoses and spray hoses are the most commonly used.

[0003] In existing technology, when firefighters are conducting firefighting operations at a fire scene, they need to connect fire hoses to fire nozzles. The fire hoses are connected to fire tank trucks, and the water pressure is regulated and delivered to the fire nozzles through the pressure control system on the fire tank trucks. However, when using fire nozzles, the water inlet of the nozzle is usually screwed into the hose interface by threads to achieve a quick connection between the fire nozzle and the hose. But 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 nozzle and the impact of the internal water flow, the threads are prone to deflection, causing the connection to loosen, which greatly affects the safety during use. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] In view of the shortcomings of the prior art, this utility model provides a fire hose connection structure to solve the problem mentioned in the background art that the existing technology cannot effectively guarantee the stability and tightness of the connection structure by using only a single threaded connection method.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a fire hose connection structure, applied to the fire hose body, for connecting the fire hose body and the hose. One end of the fire hose body is connected to a first connecting pipe, and the structure also includes a second connecting pipe, an abutment ring, multiple fixing brackets, and a clamping mechanism. The second connecting pipe is detachably installed inside the first connecting pipe via a quick-release assembly. One end of the second connecting pipe is connected to the hose. The abutment ring is fitted onto the hose. Multiple fixing brackets are arranged circumferentially on the first connecting pipe, and the clamping mechanism is installed on the fixing brackets for clamping the abutment ring.

[0008] Furthermore, the quick-release assembly includes a first external thread, a first threaded groove, and a sliding groove. The second connecting tube is fitted with the first external thread and is coaxially and fixedly connected to the first external thread. The second connecting tube has a first threaded groove that mates with the first external thread. The first external thread is threadedly engaged with the inner wall of the first threaded groove. The first connecting tube has a sliding groove that communicates with the first threaded groove.

[0009] Furthermore, the fixing frame includes a horizontal plate and a vertical plate. One end of the horizontal plate is fixedly connected to the outer wall of the first connecting pipe, and one end of the vertical plate is fixedly connected to the other end of the horizontal plate.

[0010] As a further embodiment of this solution, the clamping mechanism includes a support shaft, a contact plate, and a driving component. One end of the support shaft passes through the vertical plate, and the support shaft is movably mounted on the vertical plate via the driving component. One end of the contact plate is rotatably engaged with the other end of the support shaft, and the other end of the contact plate abuts against one end of the contact ring. The driving component is mounted on the vertical plate and is used to drive the contact plate to move toward the contact ring.

[0011] As a further step in this solution, the driving component includes a second external thread, a second threaded groove, and a knob. The support shaft is fitted with the second external thread and is coaxially and fixedly connected to it. The vertical plate has a second threaded groove that mates with the second external thread. The second external thread is threadedly engaged with the inner wall of the second threaded groove. The knob is coaxially and fixedly connected to the other end of the support shaft.

[0012] Based on the aforementioned scheme, a rubber sleeve is fitted onto the second connecting pipe, with the outer wall of the rubber sleeve abutting against the inner wall of the sliding groove.

[0013] (III) Beneficial Effects

[0014] Compared with the prior art, the present invention provides a fire hose connection structure, which has the following advantages:

[0015] In this utility model, through the cooperation of the first connecting pipe, the second connecting pipe, the abutting ring, multiple fixing brackets and the abutting mechanism, the abutting ring is moved between the abutting plate and the first connecting pipe by holding the second connecting pipe, and the second connecting pipe is moved into the slide groove. Then the abutting ring is rotated so that the first external thread is threaded into the inner wall of the first thread groove. At this time, the rubber sleeve is tightly fitted with the inner wall of the slide groove, which can maintain the sealing of the connection.

[0016] Meanwhile, one end of the abutment ring abuts against one end of the first connecting pipe. By rotating multiple knobs, the abutment plate is driven to move and press against the abutment ring, so that the abutment ring and the first connecting pipe are tightly abutted. Through the threaded engagement of the second external thread and the second thread groove, the water hose is stably fixed on one side of the first connecting pipe, ensuring the stability of the connection between the fire gun and the water hose, and facilitating disassembly.

[0017] Therefore, this fire hose connection structure is used to solve the problem mentioned in the background art that the existing technology cannot effectively guarantee the stability and tightness of the connection structure by using only a single threaded connection method. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall three-dimensional structure in a preferred embodiment of this application;

[0019] Figure 2 This is a three-dimensional structural diagram showing the assembly of the first connecting pipe, the second connecting pipe, the abutment ring, and the quick-release assembly in a preferred embodiment of this application.

[0020] Figure 3 This is a three-dimensional structural diagram of a preferred embodiment of the present application, showing the abutment ring abutting against three abutment plates and the first external thread being located on one side of the first connecting pipe.

[0021] Figure 4 This is a three-dimensional structural schematic diagram showing a partial cross-section of the cooperation between the fixing frame and the clamping mechanism in a preferred embodiment of this application.

[0022] In the diagram: 1. Water gun body; 2. Water hose; 3. First connecting pipe; 4. Second connecting pipe; 5. Abutment ring; 6. First external thread; 7. First threaded groove; 8. Slide groove; 9. Horizontal plate; 10. Vertical plate; 11. Support shaft; 12. Abutment plate; 13. Second external thread; 14. Second threaded groove; 15. Knob; 16. Rubber sleeve; 17. Support plate; 18. Rotating plate. Detailed Implementation

[0023] 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.

[0024] Example

[0025] Please see Figures 1 to 4 A fire hose connection structure is applied to the hose body 1 and is used to connect the hose body 1 and the hose 2. One end of the hose body 1 is connected to a first connecting pipe 3, and it also includes a second connecting pipe 4, an abutment ring 5, multiple fixing brackets and a clamping mechanism.

[0026] like Figure 2As shown, the second connecting pipe 4 is detachably installed inside the first connecting pipe 3 via a quick-release assembly. The quick-release assembly includes a first external thread 6, a first threaded groove 7, and a sliding groove 8. The second connecting pipe 4 is fitted with the first external thread 6 and is coaxially and fixedly connected to it. The second connecting pipe 4 has a first threaded groove 7 that mates with the first external thread 6, and the first external thread 6 is threadedly engaged with the inner wall of the first threaded groove 7. The first connecting pipe 3 has a sliding groove 8 that communicates with the first threaded groove 7. A rubber sleeve 16 is fitted onto the second connecting pipe 4. The outer wall abuts against the inner wall of the slide 8. By holding the second connecting pipe 4, one end of the first external thread 6 abuts against the inner wall of the first threaded groove 7 and engages with the thread. By rotating the second connecting pipe 4, the first external thread 6 rotates. While keeping the first connecting pipe 3 stable, the first external thread 6 gradually enters the first threaded groove 7 and engages with the inner wall of the first threaded groove 7. Meanwhile, the second connecting pipe 4 rotates and embeds itself into the first connecting pipe 3. The rubber sleeve 16 abuts tightly against the inner wall of the slide 8. This allows the water hose 2 to connect with the first connecting pipe 3 and maintains a seal.

[0027] It should be added that the inner diameters of the first connecting pipe 3, the second connecting pipe 4 and the water hose 2 are the same, and the cross-sectional area of ​​the groove 8 is larger than the cross-sectional area of ​​the first external thread 6. This avoids the first external thread 6 from rubbing against the inner wall of the groove 8 and makes it difficult for the first external thread 6 to be threaded into the first thread groove 7 through the groove 8.

[0028] One end of the second connecting pipe 4 is connected to the water hose 2. The abutment ring 5 is fitted onto the water hose 2. One end of the abutment ring 5 is coaxially and fixedly connected to the other end of the second connecting pipe 4. When the first external thread 6 is completely inside the first thread groove 7 and is threaded into the inner wall of the first thread groove 7, the second connecting pipe 4 drives the abutment ring 5 of the water hose 2 to abut against one end of the first connecting pipe 3. Multiple fixing brackets are arranged around the circumference of the first connecting pipe 3. There are three fixing brackets, which are respectively located at the three quarter points of the first connecting pipe 3. This can drive the abutment ring 5, the second connecting pipe 4, and the water hose 2 to be in a coaxial position with the first connecting pipe 3, so that the second connecting pipe 4 can enter the first connecting pipe 3. The fixing bracket includes a horizontal plate 9 and a vertical plate 10. One end of the horizontal plate 9 is fixedly connected to the outer wall of the first connecting pipe 3, and one end of the vertical plate 10 is fixedly connected to the other end of the horizontal plate 9. There is a moving space between the vertical plate 10 and one end of the first connecting pipe 3. A clamping space is formed between the first connecting pipe 3 and the three fixing brackets, so that the second connecting pipe 4 can enter the first connecting pipe 3.

[0029] like Figure 3 and Figure 4As shown, the clamping mechanism includes a support shaft 11, an abutment plate 12, and a driving component. One end of the support shaft 11 passes through the vertical plate 10. The support shaft 11 is movably mounted on the vertical plate 10 via the driving component. A support plate 17 is fixedly connected to the horizontal plate 9. The horizontal plate 9 has a recess that mates with the abutment ring 5. The recess is arc-shaped, and its inner wall abuts against and slides against the outer wall of the abutment ring 5. The support shaft 11 and the support plate 17 are rotatably engaged. One end of the abutment plate 12 is rotatably engaged with the other end of the support shaft 11. A cylindrical rotating groove is formed inside the abutment plate 12, and a rotating plate is coaxially fixedly connected to one end of the abutment plate 12. 18. The rotating plate 18 is rotatably disposed in the rotating groove. The other end of the abutting plate 12 abuts against one end of the abutting ring 5. The driving component is disposed on the vertical plate 10 and is used to drive the abutting plate 12 to move toward the abutting ring 5. The driving component includes a second external thread 13, a second thread groove 14 and a knob 15. The support shaft 11 is fitted with the second external thread 13 and is coaxially fixedly connected with the second external thread 13. The vertical plate 10 is provided with a second thread groove 14 that cooperates with the second external thread 13. The second external thread 13 is threadedly engaged with the inner wall of the second thread groove 14. The knob 15 is coaxially fixedly connected to the other end of the support shaft 11.

[0030] By holding the second connecting pipe 4, the abutment ring 5 is positioned between the abutment plate 12 and the first connecting pipe 3. At this time, the first external thread 6 is on one side of the first connecting pipe 3, allowing the first connecting pipe 3 to enter the first connecting pipe 3. Then, by rotating the abutment ring 5, the first external thread 6 on the second connecting pipe 4 is threadedly engaged with the inner wall of the first thread groove 7 and positioned within the first thread groove 7. At this time, the abutment ring 5 abuts against one end of the first connecting pipe 3. By rotating the knob 15, the knob 15 drives the connecting shaft to rotate. At the same time, the connecting shaft drives the second external thread 13 to rotate, and the connecting shaft drives the rotating plate 18 to rotate within the abutment plate 12. The second external thread 13 moves along the inner wall of the second thread groove 14, thus driving the connecting shaft to move towards the abutment ring 5. The connecting shaft drives the abutment plate 12 to move and press against the abutment ring 5, so that the abutment ring 5 is tightly abutted against the first connecting pipe 3. Through the threaded engagement of the second external thread 13 and the second thread groove 14, the water hose 2 is stably fixed on one side of the first connecting pipe 3.

[0031] Working principle: When connecting the fire hose and hose 2, the second connecting pipe 4 is held by hand to move the abutment ring 5 between the abutment plate 12 and the first connecting pipe 3, and the second connecting pipe 4 is moved into the slide groove 8. Then the abutment ring 5 is rotated to make the first external thread 6 engage with the inner wall of the first thread groove 7. At this time, the rubber sleeve 16 is tightly fitted with the inner wall of the slide groove 8 to maintain the sealing of the connection.

[0032] Meanwhile, one end of the abutment ring 5 abuts against one end of the first connecting pipe 3. By rotating multiple knobs 15, the knobs 15 drive the connecting shaft to rotate. The connecting shaft drives the second external thread 13 to rotate, and at the same time, the connecting shaft drives the rotating plate 18 to rotate within the abutment plate 12. The second external thread 13 moves along the inner wall of the second thread groove 14, thus driving the connecting shaft to move towards the abutment ring 5. The connecting shaft drives the abutment plate 12 to move and press against the abutment ring 5, so that the abutment ring 5 and the first connecting pipe 3 are tightly abutted. Through the threaded engagement of the second external thread 13 and the second thread groove 14, the water hose 2 is stably fixed on one side of the first connecting pipe 3, ensuring the stability of the connection between the fire gun and the water hose 2, and facilitating disassembly.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fire hose connecting structure applied to a water gun body (1) for connecting the water gun body (1) and a water hose (2), one end of the water gun body (1) being communicated with a first connecting pipe (3), characterized in that, Also includes: The second connecting pipe (4) is detachably installed inside the first connecting pipe (3) via a quick-release assembly. One end of the second connecting pipe (4) is connected to the water hose (2). Abutting ring (5) is fitted onto the water hose (2); Multiple fixing brackets are provided on the circumference of the first connecting pipe (3); The clamping mechanism is mounted on the fixed frame and is used to clamp the abutment ring (5).

2. The fire hose connection structure according to claim 1, characterized in that, The quick-release components include: The first external thread (6) is fitted on the second connecting pipe (4) and is coaxially fixedly connected with the first external thread (6); The first threaded groove (7) is provided in the second connecting pipe (4) to cooperate with the first external thread (6), and the first external thread (6) is threaded with the inner wall of the first threaded groove (7). The first connecting pipe (3) has a groove (8) which is connected to the first threaded groove (7).

3. The fire hose connection structure according to claim 2, characterized in that the fixing bracket include: A horizontal plate (9) is fixedly connected at one end to the outer wall of the first connecting pipe (3); A vertical plate (10) is fixedly connected at one end to the other end of a horizontal plate (9).

4. The fire hose connection structure according to claim 3, characterized in that, The blocking agencies include: A support shaft (11) is provided, one end of which passes through the vertical plate (10). The support shaft (11) is movably mounted on the vertical plate (10) via a driving component. Abutting plate (12), one end of abutting plate (12) is rotatably engaged with the other end of support shaft (11), and the other end of abutting plate (12) abuts against one end of abutting ring (5); A driving component is provided on the vertical plate (10) for driving the abutment plate (12) to move toward the abutment ring (5).

5. A fire hose connection structure according to claim 4, characterized in that the driving component... include: The second external thread (13) is fitted on the support shaft (11) and is coaxially fixedly connected with the second external thread (13); The second threaded groove (14) is provided on the vertical plate (10) to cooperate with the second external thread (13). The second external thread (13) is threaded with the inner wall of the second threaded groove (14). Knob (15) is coaxially fixedly connected to the other end of the support shaft (11).

6. A fire hose connection structure according to claim 2, characterized in that, A rubber sleeve (16) is fitted on the second connecting pipe (4), and the outer wall of the rubber sleeve (16) abuts against the inner wall of the groove (8).

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