Fire-fighting pipe joint capable of achieving quick butt joint

Abstract

The utility model relates to the technical field of fire-fighting equipment, in particular to a quick-butt-joint fire-fighting pipe joint. The quick-butt-joint fire-fighting pipe joint comprises a joint pipe A and a joint pipe B, and the joint pipe A is sleeved with a pressing ball lantern ring which is in sliding connection with the joint pipe A. According to the fire-fighting pipe joint capable of achieving quick butt joint, the pressing ball lantern ring completely compresses the spring A through the rear sliding pressing ball lantern ring, then the inserting pipe opening of the joint pipe B is inserted into the sleeving pipe opening of the joint pipe A, at the moment, the ball clamping groove corresponds to the ball falling cavity, then the pressing ball lantern ring is loosened, the pressing ball lantern ring is quickly reset under the elastic force effect of the spring A, and therefore the fire-fighting pipe joint can achieve quick butt joint. Therefore, the inner pressing ring can quickly press the upper ball body of the steel ball into the ball falling cavity, and meanwhile, the inner pressing ring stops above the ball falling cavity, so that locking of the steel ball is achieved, firefighters can quickly achieve butt joint of the joint A pipe and the joint B pipe, cooperation of multiple persons is not needed, the manpower demand is greatly reduced, and the joint is suitable for the emergency rescue scene of a fire scene.

Description

TECHNICAL FIELD

[0001] The utility model relates to fire fighting equipment technical field especially relates to a quick butt joint's fire fighting pipe joint. BACKGROUND

[0002] In the fire rescue scene, the fire fighting pipe joint as the key part of connecting the fire water pipe and water source, fire fighting equipment, its butt joint efficiency and sealing performance directly influence rescue progress and fire extinguishing effect. The existing fire fighting pipe joint adopts the threaded connection or the flange connection structure, and this kind of structure has obvious limitation in actual operation, for example, threaded connection needs artificial rotation multiple circles to complete butt joint, flange connection needs to install bolt and fasten one by one, when the fire emergency rescue, 2-3 operating personnel often need to work cooperatively, and the average time consumption is 30-60 seconds for completing butt joint once, and the golden rescue time of the initial stage of fire is usually only a few minutes, and the long butt joint time is easy to lead to fire spreading, and miss the best control time, and the weight of traditional joint is relatively large, and the threaded and flange structure has high requirement to installation precision, and under the condition that the firemen wear heavy protective equipment and the hand movement is limited, it is difficult to quickly align the installation position, especially in the complex rescue environment such as high altitude and narrow space, the operation difficulty is further increased, and even the joint may fall off due to improper butt joint, and safety hazard is caused.

[0003] Therefore, it is necessary to provide a new quick butt joint's fire fighting pipe joint to solve the above technical problems. CONTENT OF UTILITY MODEL

[0004] In order to solve the above technical problems, the utility model provides a quick butt joint's fire fighting pipe joint.

[0005] The utility model provides a quick butt joint's fire fighting pipe joint, which comprises a joint A pipe and a joint B pipe, a plurality of annularly distributed ball drop cavities are formed in the pipe wall close to the sleeve joint pipe opening of the joint A pipe, a steel ball is installed in each ball drop cavity, an outer convex ring is fixedly installed on the outer pipe wall of the joint A pipe,

[0006] A slidingly connected ball pressing sleeve ring is sleeved on the joint A pipe, an inner pressing ring is fixedly embedded in the ball pressing sleeve ring, a spring A is sleeved on the joint A pipe, and a tail limiting ring matched with the outer convex ring is fixedly embedded in the inner circle wall of the tail end of the ball pressing sleeve ring.

[0007] A butt abutting edge is arranged on the outer pipe wall close to the plug-in pipe opening of the joint B pipe, and a plurality of annularly distributed ball clamping grooves are formed in the butt abutting edge.

[0008] Preferably, one end of the spring A is fixedly connected with the annular surface of the inner pressing ring away from the steel ball, and the other end of the spring A is fixedly connected with the annular surface of the outer convex ring close to the steel ball.

[0009] Preferably, an inner edge ring for abutting the insertion port of connector B is fixedly installed inside connector A.

[0010] Preferably, the connector A pipe is further provided with a sealing component for sealing the inner edge ring, and the sealing component includes a mounting bracket, the mounting bracket is fixedly installed in the connector A pipe, and the mounting bracket has a flow channel hole. A sliding rod is inserted into the mounting bracket and is slidably connected. A sealing disc is fixedly installed at one end of the sliding rod, and a rod cap is fixedly installed at the other end of the sliding rod. A spring B is sleeved on the sliding rod.

[0011] Preferably, one end of the spring B is fixedly connected to the plate surface of the mounting bracket near the sealing disc, and the other end of the spring B is fixedly connected to the disc surface of the sealing disc away from the steel ball.

[0012] Preferably, a retaining post is fixedly installed inside the connector B tube by a bracket, and the retaining post extends out of the insertion port of the connector B tube.

[0013] Preferably, the outer convex ring has a transition arc surface along its edge near the insertion port of connector B, and both sides of the ball-holding groove have transition arc surfaces.

[0014] Preferably, the outer diameter of the ball-falling cavity is the same as the diameter of the steel ball, and the inner diameter of the ball-falling cavity is three-quarters of the diameter of the steel ball.

[0015] Compared with related technologies, the quick-connect fire pipe joint provided by this utility model has the following advantages:

[0016] This invention utilizes a rear-sliding ball-pressing collar to fully compress spring A. Then, the insertion port of connector B is inserted into the sleeve port of connector A. At this point, the ball-locking groove and the ball-dropping chamber correspond. Subsequently, the ball-pressing collar is released, and under the elastic force of spring A, it quickly resets. Therefore, the inner pressure ring quickly presses the upper part of the steel ball down into the ball-dropping chamber. Simultaneously, the inner pressure ring stops above the ball-dropping chamber, thus locking the steel ball. This allows firefighters to quickly connect connector A and connector B without the need for multiple personnel, significantly reducing manpower requirements and making it suitable for emergency rescue scenarios at fire scenes. Attached Figure Description

[0017] Figure 1 A schematic diagram of a preferred embodiment of the quick-connect fire pipe joint provided by this utility model;

[0018] Figure 2 for Figure 1 The diagram shows the structure of connector A pipe;

[0019] Figure 3 for Figure 2The front view structural schematic diagram of the joint A pipe is shown in the figure.

[0020] Figure 4 For Figure 1 The structural schematic diagram of the joint B pipe is shown in the figure.

[0021] The figure label: 1, joint A pipe; 1a, falling ball cavity; 11, inner along ring; 12, outer convex ring; 2, joint B pipe; 21, abutting along; 21a, ball clamping groove; 3, steel ball; 4, ball pressing sleeve ring; 41, inner pressing ring; 42, tail limiting ring; 5, spring A; 6, sealing part; 61, mounting frame; 61a, flow channel hole; 62, sliding rod; 63, sealing disc; 64, spring B; 7, abutting column; 71, support. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantages of the utility model clearer and more apparent, the utility model is further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model and not to limit the utility model.

[0023] The specific implementation of the utility model is described in detail below in combination with specific examples.

[0024] Please refer to Figures 1 to 4 The utility model embodiment provides a quick butt joint's fire control pipe joint, quick butt joint's fire control pipe joint includes joint A pipe 1 and joint B pipe 2.

[0025] In the embodiment of the utility model, please refer to Figures 1 to 4 The joint A pipe 1 is close to the pipe wall of the socket pipe mouth and is provided with a plurality of annularly distributed falling ball cavities 1a, and a steel ball 3 is installed in each falling ball cavity 1a, the outer pipe wall of the joint A pipe 1 is fixedly installed with an outer convex ring 12, a slidingly connected ball pressing sleeve ring 4 is sleeved on the joint A pipe 1, an inner pressing ring 41 is fixedly embedded in the ball pressing sleeve ring 4, a spring A 5 is sleeved on the joint A pipe 1, one end of the spring A 5 is fixedly connected with the annular surface of the inner pressing ring 41 away from the steel ball 3, the other end of the spring A 5 is fixedly connected with the annular surface of the outer convex ring 12 close to the steel ball 3, the tail limiting ring 42 that is adapted to the outer convex ring 12 is fixedly embedded in the end inner circle wall of the ball pressing sleeve ring 4, and an inner along ring 11 for abutting the joint B pipe 2 insertion pipe mouth is fixedly installed in the joint A pipe 1;

[0026] The joint B pipe 2 is provided with an abutting along 21 on the outer pipe wall close to the insertion pipe mouth, and the abutting along 21 is provided with annularly distributed ball clamping grooves 21a.

[0027] It should be noted that: when the joint A pipe 1 and the joint B pipe 2 are docked, the fireman holds the joint A pipe 1 in the click hole with one hand, holds the pressure ball sleeve ring 4 with the other hand and slides the pressure ball sleeve ring 4 backward to make the pressure ball sleeve ring 4 completely compress the spring 5A (at this time, the inner pressure ring 41 is no longer in contact with the corresponding ball falling cavity 1a), then holds the joint B pipe 2 with the other hand, inserts the inserted pipe orifice of the joint B pipe 2 into the sleeving pipe orifice of the joint A pipe 1, and then makes the steel ball 3 completely abut on the bottom of the ball falling cavity 1a through the abutting along 21 until the inserted pipe orifice of the joint B pipe 2 abuts on the inner along ring 11, at this time, the ball clamping groove 21a and the ball falling cavity 1a correspond to each other, so that the bottom of the steel ball 3 falls into the ball falling cavity 1a, then the pressure ball sleeve ring 4 is released, so that the pressure ball sleeve ring 4 is quickly reset under the action of the spring 5A, and the inner pressure ring 41 is quickly lowered to the ball falling cavity 1a, and at the same time, the inner pressure ring 41 stops above the ball falling cavity 1a, so as to realize the locking of the steel ball 3, so that the fireman can quickly realize the docking of the joint A pipe 1 and the joint B pipe 2 without the need for multiple people to cooperate, greatly reducing the demand for manpower, and adapting to the emergency rescue scene of the fire scene.

[0028] When disassembling, the fireman holds the pressure ball sleeve ring 4 with one hand and holds the joint A pipe 1 in the click hole, then slides the pressure ball sleeve ring 4 backward to make the pressure ball sleeve ring 4 completely compress the spring 5A, at this time, the inner pressure ring 41 no longer locks the steel ball 3, so that the joint B pipe 2 can be pulled out to complete the disassembly work (when the joint B pipe 2 is pulled out, the steel ball 3 is completely abutted in the ball falling cavity 1a through the abutting along 21, so that the restriction of the steel ball 3 on the ball clamping groove 21a is released).

[0029] In this embodiment, the inner pressure ring 41 is provided with a bevel transition arc surface near the ring surface of the sleeving pipe orifice of the joint A pipe 1, so as to facilitate the inner pressure ring 41 to lower the steel ball 3 into the ball falling cavity 1a.

[0030] The outer cavity orifice diameter of the ball falling cavity 1a is the same as the ball diameter of the steel ball 3, so that the bottom of the steel ball 3 can be completely inserted into the ball falling cavity 1a, and the inner cavity orifice diameter of the ball falling cavity 1a is three-fourths of the ball diameter of the steel ball 3, so that the steel ball 3 can be clamped into the ball clamping groove 21a without being completely inserted into the joint A pipe 1 from the ball clamping groove 21a.

[0031] In addition, the lip extending radially is arranged on the annular surface of the ball pressing sleeve 4 close to the pipe joint of the pipe 1, and the lip does not exceed the ball falling cavity 1a when the ball pressing sleeve 4 is in the maximum rear sliding position, so that the risk of the steel ball 3 sliding out of the ball falling cavity 1a is avoided. The material of the steel ball 3 is replaced by high-strength wear-resistant alloy (such as chromium steel and tungsten carbide alloy), the surface hardness and wear resistance of the steel ball 3 are improved, the service life is prolonged, and the surface of the steel ball 3 is coated with a diamond-like carbon coating (DLC coating) with a thickness of 5-10 microns, so that the friction coefficient is further reduced and the wear is reduced.

[0032] Further, the overhanging ring 12 is provided with an overhanging arc surface on the edge close to the pipe joint of the pipe 2, and the overhanging arc surface on the overhanging ring 12 facilitates the abutting of the abutting steel ball 3 to the abutting edge 21, so that the steel ball 3 is slid upward to the outer wall of the abutting edge 21. The two side groove walls of the ball clamping groove 21a are provided with overhanging arc surfaces, so that the steel ball 3 is easily slid to the outer wall of the abutting edge 21 when the pipe 2 is pulled out.

[0033] In the embodiment of the utility model, please refer to Figures 1 to 4 The pipe 1 is further provided with a sealing component 6 for sealing the inner edge ring 11, and the sealing component 6 comprises a mounting frame 61 fixedly installed in the pipe 1, a flow channel hole 61a is formed in the mounting frame 61, a sliding rod 62 is slidably inserted into the mounting frame 61, a sealing disc 63 is fixedly installed at one end of the sliding rod 62, a rod cap is fixedly installed at the other end of the sliding rod 62, a spring B 64 is sleeved on the sliding rod 62, one end of the spring B 64 is fixedly connected to the plate surface of the mounting frame 61 close to the sealing disc 63, the other end of the spring B 64 is fixedly connected to the disc surface of the sealing disc 63 away from the steel ball 3, and the abutting column 7 is fixedly installed in the pipe 2 through a support 71, and the abutting column 7 extends out of the pipe joint of the pipe 2.

[0034] It should be noted that when the pipe 1 is not connected to the pipe 2, the sealing disc 63 seals the inner edge ring 11 under the action of the spring B 64, so that the water cannot flow out, and when the pipe 1 and the pipe 2 are connected, the abutting column 7 abuts against the sealing disc 63 and drives the sliding rod 62 to slide rearward along the mounting frame 61, so that the sealing disc 63 no longer seals the inner edge ring 11. Therefore, after the pipe 1 and the pipe 2 are connected, the connection is realized, and after the pipe 1 and the pipe 2 are disassembled, the sealing component 6 can realize the sealing of the pipe 1.

[0035] It should be noted that the pipe 1 is a water supply end connecting pipe, and the pipe 2 is a connecting pipe of the abutting member.

[0036] In addition, in order to eliminate the hidden danger of spring A5 and spring B64 caused by rusting due to contact with water, the spring A5 and spring B64 are made of stainless steel or titanium alloy spring, which improves the corrosion resistance, and the surface of the spring A5 and spring B64 is coated with a polytetrafluoroethylene (PTFE) coating to enhance the rust prevention ability.

[0037] Wherein, in order to avoid the hidden danger of the rotation of the ball sleeve ring 4, two symmetrically distributed sliding grooves can be opened on the outer pipe wall of the joint A pipe 1, and two limiting strips are welded on the inner ring wall of the tail limiting ring 42, and the two limiting strips are respectively inserted into the two sliding grooves and are in sliding connection with the sliding grooves, so as to realize the limitation of the rotation of the ball sleeve ring 4, and the sliding rod 62 and the mounting frame 61 are designed in the same way as above to eliminate the problem of rotation of the sliding rod 62 around the mounting frame 61.

[0038] The circuit and control involved in the utility model are prior art, and will not be described in detail here.

[0039] The above is only an embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structure or equivalent process transformation using the content of the utility model specification and drawings, or direct or indirect application in other related technical fields, are also included in the patent protection range of the utility model.

Claims

1. A quick coupling fire hose coupling comprising a coupling A pipe (1) and a coupling B pipe (2), characterized in that, The joint A pipe (1) is provided with a plurality of annularly distributed ball falling cavities (1a) on the pipe wall near the socket pipe opening, and a steel ball (3) is installed in each ball falling cavity (1a). The joint A pipe (1) is provided with a spring A (5) sleeved thereon, and the end inner ring wall of the spring A (5) is fixedly embedded with a tail limiting ring (42) matched with the outer convex ring (12) in direction. The joint B pipe (2) is provided with an abutting edge (21) on the outer pipe wall near the insertion pipe opening, and the abutting edge (21) is provided with annularly distributed ball clamping grooves (21a).

2. The quick dock fire hose coupling of claim 1, wherein, One end of the spring A (5) is fixedly connected with the inner pressing ring (41) away from the ring surface of the steel ball (3), and the other end of the spring A (5) is fixedly connected with the outer convex ring (12) near the ring surface of the steel ball (3).

3. The quick dock fire hose coupling of claim 1, wherein, The joint A pipe (1) is fixedly installed with an inner edge ring (11) for abutting the insertion pipe opening of the joint B pipe (2).

4. The quick dock fire hose coupling of claim 3, wherein, The joint A pipe (1) is further provided with a sealing member (6) for sealing the inner edge ring (11), and the sealing member (6) comprises a mounting frame (61) fixedly installed in the joint A pipe (1), and the mounting frame (61) is provided with a flow channel hole (61a), a sliding rod (62) is sleeved and connected with the mounting frame (61), one end of the sliding rod (62) is fixedly installed with a sealing disc (63), and the other end of the sliding rod (62) is fixedly installed with a rod cap, and a spring B (64) is sleeved on the sliding rod (62).

5. The quick dock fire hose coupling of claim 4, wherein, One end of the spring B (64) is fixedly connected with the plate surface of the mounting frame (61) near the sealing disc (63), and the other end of the spring B (64) is fixedly connected with the disc surface of the sealing disc (63) away from the steel ball (3).

6. The quick dock fire hose coupling of claim 5, wherein, The joint B pipe (2) is fixedly installed with an abutting column (7) through a support (71), and the abutting column (7) extends out of the insertion pipe opening of the joint B pipe (2).

7. The quick dock fire hose coupling of claim 1, wherein, The outer convex ring (12) is provided with an excessive arc surface on the edge near the insertion pipe opening direction of the joint B pipe (2), and the two side groove walls of the ball clamping groove (21a) are provided with an excessive arc surface.

8. The quick dock fire hose coupling of claim 1, wherein, The outer cavity opening diameter of the ball falling cavity (1a) is the same as the ball diameter of the steel ball (3), and the inner cavity opening diameter of the ball falling cavity (1a) is three fourths of the ball diameter of the steel ball (3).

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