Pressure-resistant anti-cracking expanded short connecting pipe for fire fighting

Abstract

The utility model relates to the technical field of fire-fighting equipment, and discloses a fire-fighting pressure-resistant anti-cracking expanded short connecting pipe which comprises a short connecting pipe body, and a first flange plate is welded and fixed on the left side of the outer part of the short connecting pipe body. When the pressure-resistant anti-cracking expanded short connecting pipe for fire fighting is used, the arranged arc-shaped plates can be fixed to the top end of the upper connecting ring and the bottom end of the lower connecting ring through connecting bolts respectively at the top and the bottom of the short connecting pipe body, and then the arc-shaped plates are fixed to the top end of the upper connecting ring and the bottom end of the lower connecting ring; the two sets of arc-shaped plates are symmetrically arranged on the outer portion of the short connecting pipe body so that the outer portion of the short connecting pipe body can be subjected to outer cover pressure prevention protection, and meanwhile the upper connecting ring and the lower connecting ring are fixedly welded to the top end and the bottom end of the outer portion of the short connecting pipe body. The external structure of the pipe body of the short connecting pipe can be reinforced, and the problem that the external structure of the short connecting pipe is not convenient to reinforce and protect is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of fire-fighting equipment, in particular to a pressure-resistant, crack-proof, expansion-proof shortening pipe for fire-fighting. Background Art

[0002] Fire hose is a product used in fire water supply, gas supply, and foam medium delivery pipeline systems. Fire hose short pipe is an accessory used to connect fire hoses in fire protection systems. It can compensate for the length of auxiliary connections between fire hoses and is widely used in the laying of fire hoses.

[0003] However, during the use of the short pipe for fire fighting, the external structure of the short pipe body is relatively simple, and it is easy to cause deformation and cracking of the short pipe body when subjected to external collision and heavy pressure. The use strength of the short pipe body is low, which is insufficient and it is not convenient to structurally strengthen and protect the external part of the short pipe.

[0004] Now, a new type of pressure-resistant, crack-proof and expansion-resistant shortening pipe for fire fighting is proposed to solve the above-mentioned shortcomings. Utility Model Content

[0005] The utility model aims to provide a pressure-resistant, crack-proof and expansion-resistant shortening pipe for fire fighting, so as to solve the problem in the above-mentioned background technology that it is inconvenient to strengthen and protect the structure of the exterior of the short pipe.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a fire-fighting pressure-resistant crack-expansion-proof shortening pipe, comprising a short pipe body, a first flange is welded and fixed on the left side of the outside of the short pipe body, a third flange is welded and fixed on the right side of the outside of the short pipe body, and a strengthening structure for pressure-resistant crack-expansion-proof shortening of the short pipe is arranged on the outside of the short pipe body;

[0007] The reinforcement structure includes an upper connecting ring, a threaded hole, an arc plate, connecting bolts and a lower connecting ring. The upper connecting ring is welded and fixed to the top end of the outside of the short pipe body, and the lower connecting ring is welded and fixed to the bottom end of the outside of the short pipe body. The top and bottom ends of the short pipe body are symmetrically provided with arc plates, and the top end of the arc plate is provided with connecting bolts. The inside of the top end of the upper connecting ring and the inside of the bottom end of the lower connecting ring are respectively provided with threaded holes for cooperating with the installation of the connecting bolts.

[0008] Furthermore, three groups of upper connecting rings and lower connecting rings are fixed at equal intervals on the top and bottom ends of the short connecting pipe body, and the upper connecting rings and lower connecting rings are fixed by welding.

[0009] Furthermore, the connecting bolts penetrate the interior of the arc-shaped plate, and three groups of the connecting bolts are arranged at equal intervals on the arc-shaped plate.

[0010] Preferably, a second connecting pipe is welded and fixed to the right side of the front end of the short connecting pipe body, and the second connecting pipe is connected to the interior of the short connecting pipe body, a fifth flange is welded and fixed to the front end of the outside of the second connecting pipe, a first connecting pipe is arranged at the front end of the second connecting pipe, and a sixth flange is welded and fixed to the rear end of the outside of the first connecting pipe, a second flange is welded and fixed to the front end of the outside of the first connecting pipe, a valve is arranged between the fifth flange and the sixth flange, and seventh flanges are welded and fixed to both ends of the outside of the valve.

[0011] Furthermore, the second connecting pipe is connected to the interior of the first connecting pipe through a valve.

[0012] Furthermore, the seventh flanges at both ends of the valve are fixedly installed and connected with the fifth flange and the sixth flange by bolt assemblies respectively.

[0013] Furthermore, a plugging head is provided on the right side of the short pipe body, and a fourth flange is welded and fixed on the left side outside the plugging head, a fixing bolt is provided on the right side of the fourth flange, and the left side of the fixing bolt passes through the interior of the fourth flange and the third flange respectively, and a fixing nut is rotatably connected to the left side outside the fixing bolt, and six groups of fixing nuts and fixing bolts are equally spaced.

[0014] Preferably, a slot is provided inside the left side of the short pipe body, and a fixing ring is provided inside the slot, and a filter is fixed inside the fixing ring.

[0015] Compared with the prior art, the utility model has the following beneficial effects: the fire-fighting pressure-resistant and crack-proof shortened pipe not only facilitates the structural reinforcement and protection of the exterior of the short pipe, facilitates the adjustment of the pipe direction of the short pipe, but also facilitates the auxiliary filtration of the fire-fighting water source;

[0016] (1) By providing a short pipe body, an upper connecting ring, a threaded hole, an arc plate, a connecting bolt and a lower connecting ring, when the short pipe is used, the arc plate can be respectively fixed to the top end of the upper connecting ring and the bottom end of the lower connecting ring at the top and bottom of the short pipe body by connecting bolts, and then the outside of the short pipe body can be protected from pressure by two sets of arc plates symmetrically arranged on the outside of the short pipe body. At the same time, the upper connecting ring and the lower connecting ring are respectively welded and fixed to the top and the bottom end of the outside of the short pipe body. The upper connecting ring and the lower connecting ring can be used to reinforce the external structure of the short pipe body, reduce and prevent the cracking and expansion and contraction of the outer side of the short pipe body, and reduce the damage of the short pipe body when it is used;

[0017] (2) By providing a short pipe body, a first connecting pipe, a second flange, a fixing nut, a third flange, a fourth flange, a plugging head, a fixing bolt, a second connecting pipe, a fifth flange, a valve, a sixth flange and a seventh flange, when the short pipe is in use, two sets of output ports in different directions are provided on the right side of the short pipe body and the right side of the front end, and the delivery port can be flexibly selected according to the direction of the pipeline. When the external pipeline and the short pipe body are connected in parallel and straight, the plugging head is removed from the right side of the third flange and then connected to the external pipeline. At the same time, when the external pipeline and the short pipe are connected vertically, the plugging head is used to close the right side of the short pipe body, and then the external pipeline is connected to the first connecting pipe. After opening the valve, the output water inside the short pipe body can be reversed and discharged, which is convenient for adjusting the water delivery direction of the short pipe;

[0018] (3) By providing a short pipe body, a slot, a fixing ring and a filter, when the short pipe is used, the fixing ring can be inserted into the slot inside the left side of the short pipe body. When the short pipe is connected to a water pipeline for water delivery, the filter provided inside the fixing ring can assist in filtering and removing some particulate impurities in the water source for pumping and delivery, and the debris can be intercepted in advance, thereby reducing the blockage and damage inside some water pump components. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a front view cross-sectional structural schematic diagram of the utility model;

[0020] Figure 2 This is a schematic diagram of the top view of the second connecting pipe of the utility model;

[0021] Figure 3 This is a schematic diagram of the side structure of the curved plate of the utility model;

[0022] Figure 4 It is a schematic diagram of the side structure of the fixing ring of the utility model.

[0023] In the figure: 1. first flange; 2. slot; 3. fixing ring; 4. filter; 5. short pipe body; 6. upper connecting ring; 7. first connecting pipe; 8. second flange; 9. fixing nut; 10. third flange; 11. fourth flange; 12. plugging head; 13. fixing bolt; 14. threaded hole; 15. second connecting pipe; 16. fifth flange; 17. valve; 18. sixth flange; 19. seventh flange; 20. arc plate; 21. connecting bolt; 22. lower connecting ring. DETAILED DESCRIPTION

[0024] 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.

[0025] Example 1: Please refer to Figure 1-4 A fire-fighting pressure-resistant crack-proof shortening pipe comprises a short pipe body 5, a first flange 1 is welded and fixed to the left side of the short pipe body 5, a third flange 10 is welded and fixed to the right side of the short pipe body 5, and a strengthening structure for pressure-resistant crack-proof shortening of the short pipe is arranged on the outside of the short pipe body 5;

[0026] The strengthening structure includes an upper connecting ring 6, a threaded hole 14, an arc plate 20, a connecting bolt 21 and a lower connecting ring 22. The upper connecting ring 6 is welded and fixed to the top of the outer side of the short pipe body 5, and the lower connecting ring 22 is welded and fixed to the bottom of the outer side of the short pipe body 5. The arc plate 20 is symmetrically arranged at the top and bottom of the short pipe body 5, and the top of the arc plate 20 is provided with a connecting bolt 21. The inner part of the top of the upper connecting ring 6 and the inner part of the bottom of the lower connecting ring 22 are respectively provided with threaded holes 14 for matching the installation of the connecting bolt 21.

[0027] Three groups of upper connecting rings 6 and lower connecting rings 22 are fixed at equal intervals on the top and bottom of the short pipe body 5, respectively. The upper connecting rings 6 and the lower connecting rings 22 are welded and fixed. The connecting bolts 21 penetrate the interior of the arc plate 20. Three groups of connecting bolts 21 are arranged at equal intervals on the arc plate 20.

[0028] Specifically, Figure 1-Figure 3 As shown, the arc plate 20 can be respectively fixed to the top end of the upper connecting ring 6 and the bottom end of the lower connecting ring 22 at the top and bottom of the short pipe body 5 using connecting bolts 21, and then the outside of the short pipe body can be protected from pressure by two groups of arc plates 20 symmetrically arranged on the outside of the short pipe body 5. At the same time, the upper connecting ring 6 and the lower connecting ring 22 are welded and fixed to the top and bottom ends of the outside of the short pipe body 5 respectively. The external structure of the short pipe body can be reinforced by the upper connecting ring 6 and the lower connecting ring 22, which can reduce and prevent cracking and expansion and contraction of the outside of the short pipe body.

[0029] Embodiment 2: A second connecting pipe 15 is welded and fixed to the right side of the front end of the short connecting pipe body 5, and the second connecting pipe 15 is connected to the inside of the short connecting pipe body 5, a fifth flange 16 is welded and fixed to the front end of the outside of the second connecting pipe 15, a first connecting pipe 7 is arranged at the front end of the second connecting pipe 15, and a sixth flange 18 is welded and fixed to the rear end of the outside of the first connecting pipe 7, a second flange 8 is welded and fixed to the front end of the outside of the first connecting pipe 7, a valve 17 is arranged between the fifth flange 16 and the sixth flange 18, and a seventh flange 19 is welded and fixed to the two ends of the outside of the valve 17, the second connecting pipe 15 is connected to the inside of the first connecting pipe 7 through the valve 17, and the seventh flanges 19 at both ends of the valve 17 are fixedly installed and connected to the fifth flange 16 and the sixth flange 18 by bolt assemblies respectively;

[0030] A plugging head 12 is provided on the right side of the short pipe body 5, and a fourth flange 11 is welded and fixed to the left side of the outside of the plugging head 12, a fixing bolt 13 is provided on the right side of the fourth flange 11, and the left side of the fixing bolt 13 respectively penetrates the inside of the fourth flange 11 and the third flange 10, and a fixing nut 9 is rotatably connected to the left side of the outside of the fixing bolt 13, and six groups of fixing nuts 9 and fixing bolts 13 are arranged at equal intervals;

[0031] Specifically, Figure 1 and Figure 2 As shown, two groups of output ports in different directions are arranged on the right side of the short pipe body 5 and the right side of the front end, and the delivery port can be flexibly selected according to the direction of the pipeline. When the external pipeline and the short pipe body 5 are connected in parallel and straight, the plugging head 12 is removed from the right side of the third flange 10 and then connected to the external pipeline. At the same time, when the external pipeline and the short pipe are connected vertically, the plugging head 12 is used to close the right side of the short pipe body 5, and then the external pipeline is connected to the first connecting pipe 7. After opening the valve 17, the output water inside the short pipe body 5 can be reversed and discharged, and the water delivery direction of the short pipe can be adjusted.

[0032] Embodiment 3: A slot 2 is provided inside the left side of the short pipe body 5, and a fixing ring 3 is provided inside the slot 2, and a filter screen 4 is fixed inside the fixing ring 3;

[0033] Specifically, Figure 1 and Figure 4 As shown, after the fixing ring 3 is inserted into the slot 2 inside the left side of the short pipe body 5, when it is connected to the water supply pipe for water supply, the filter screen 4 arranged inside the fixing ring 3 can be used to assist in filtering and removing some particulate impurities in the water source for pumping and delivery, and the sundries can be intercepted in advance, which can reduce the blockage and damage inside some water pump components.

[0034] Working principle: When the utility model is in use, the top end of the connecting ring 6 and the bottom end of the lower connecting ring 22 can be respectively fixed to the top end of the upper connecting ring 6 and the bottom end of the lower connecting ring 22 at the top and bottom of the short pipe body 5, and the arc plate 20 can be respectively fixed to the top end of the upper connecting ring 6 and the bottom end of the lower connecting ring 22 using the connecting bolts 21. Then, the outside of the short pipe body can be covered with pressure-proof protection through the two groups of arc plates 20 symmetrically arranged outside the short pipe body 5. At the same time, the upper connecting ring 6 and the lower connecting ring 22 are respectively welded and fixed to the top and bottom ends of the outside of the short pipe body 5. The external structure of the short pipe body can be reinforced and strengthened by the upper connecting ring 6 and the lower connecting ring 22. At the same time, when the short pipe is in use, two groups of output ports in different directions are arranged on the right side of the short pipe body 5 and the right side of the front end. The delivery port can be flexibly selected according to the direction of the pipeline. When the pipe and the short pipe body 5 are connected in parallel and straight, the plugging head 12 is removed from the right side of the third flange 10 and then the third flange 10 is used to connect the external pipe. At the same time, when the external pipe and the short pipe are connected vertically, the plugging head 12 is used to seal the right side of the short pipe body 5, and then the external pipe is connected to the first connecting pipe 7. After opening the valve 17, the output water inside the short pipe body 5 can be reversed and discharged, and the water delivery direction of the short pipe can be adjusted. When the short pipe is used, the fixing ring 3 can be inserted into the card groove 2 inside the left side of the short pipe body 5. When it is connected to the water delivery pipe for water delivery, some particulate impurities in the water source for pumping and delivery can be assisted by the filter screen 4 arranged inside the fixing ring 3 to filter and remove, and the sundries can be intercepted in advance.

[0035] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A pressure-resistant, crack-proof and expansion-proof shortening pipe for firefighting, comprising a shortening pipe body (5), characterized in that: A first flange (1) is welded and fixed to the left side of the outside of the short pipe body (5), a third flange (10) is welded and fixed to the right side of the outside of the short pipe body (5), and a reinforcement structure for resisting pressure and preventing cracking, expansion and shortening of the short pipe is arranged on the outside of the short pipe body (5); The reinforcement structure comprises an upper connecting ring (6), a threaded hole (14), an arc plate (20), a connecting bolt (21) and a lower connecting ring (22); the upper connecting ring (6) is welded and fixed to the top end of the outside of the short connecting pipe body (5); the lower connecting ring (22) is welded and fixed to the bottom end of the outside of the short connecting pipe body (5); the arc plate (20) is symmetrically arranged at the top and bottom ends of the short connecting pipe body (5); and the top end of the arc plate (20) is provided with a connecting bolt (21); the inside of the top end of the upper connecting ring (6) and the inside of the bottom end of the lower connecting ring (22) are respectively provided with threaded holes (14) for matching the installation of the connecting bolt (21).

2. A fire-fighting pressure-resistant, crack-proof, expansion-proof shortening pipe according to claim 1, characterized in that: Three groups of upper connecting rings (6) and lower connecting rings (22) are fixed at equal intervals on the top and bottom ends of the short pipe body (5), and the upper connecting rings (6) and lower connecting rings (22) are fixed by welding.

3. The fire-fighting pressure-resistant, crack-proof, expansion-proof shortening pipe according to claim 1, characterized in that: The connecting bolts (21) penetrate the interior of the arc-shaped plate (20), and three groups of the connecting bolts (21) are arranged at equal intervals on the arc-shaped plate (20).

4. The fire-fighting pressure-resistant, crack-proof, expansion-proof shortening pipe according to claim 1, characterized in that: A second connecting pipe (15) is welded and fixed to the right side of the front end of the short connecting pipe body (5), and the second connecting pipe (15) is connected to the interior of the short connecting pipe body (5); a fifth flange (16) is welded and fixed to the front end of the exterior of the second connecting pipe (15); a first connecting pipe (7) is arranged at the front end of the second connecting pipe (15), and a sixth flange (18) is welded and fixed to the rear end of the exterior of the first connecting pipe (7); a second flange (8) is welded and fixed to the front end of the exterior of the first connecting pipe (7); a valve (17) is arranged between the fifth flange (16) and the sixth flange (18), and seventh flanges (19) are welded and fixed to both ends of the exterior of the valve (17).

5. A fire-fighting pressure-resistant, crack-proof, expansion-proof shortening pipe according to claim 4, characterized in that: The second connecting pipe (15) is connected to the interior of the first connecting pipe (7) via a valve (17).

6. The pressure-resistant, crack-proof, expansion-proof shortening pipe for firefighting according to claim 4, characterized in that: The seventh flanges (19) at both ends of the valve (17) are fixedly installed and connected to the fifth flange (16) and the sixth flange (18) by bolt assemblies respectively.

7. The fire-fighting pressure-resistant, crack-proof, expansion-shortening pipe according to claim 1, characterized in that: A plugging head (12) is provided on the right side of the short pipe body (5), and a fourth flange (11) is welded and fixed on the left side of the outside of the plugging head (12), a fixing bolt (13) is provided on the right side of the fourth flange (11), and the left side of the fixing bolt (13) passes through the inside of the fourth flange (11) and the third flange (10) respectively, and a fixing nut (9) is rotatably connected to the left side of the outside of the fixing bolt (13), and six groups of the fixing nuts (9) and the fixing bolts (13) are arranged at equal intervals.

8. The fire-fighting pressure-resistant, crack-proof, expansion-proof shortening pipe according to claim 1, characterized in that: A slot (2) is provided inside the left side of the short pipe body (5), and a fixing ring (3) is provided inside the slot (2), and a filter screen (4) is fixed inside the fixing ring (3).

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