Elbow pipe, conveying device adopting elbow pipe and fire fighting equipment

Abstract

The utility model discloses an elbow pipe, a conveying device adopting the elbow pipe and fire fighting equipment, at least the interior of the elbow pipe is of a first U-shaped structure, a flow guide part is arranged in the center of the opening end of the elbow pipe, and the opening end of the elbow pipe is divided into an inlet end and an outlet end by the flow guide part; the flow guide part is provided with a second U-shaped structure matched with the first U-shaped structure, a fluid channel is formed between the first U-shaped structure and the second U-shaped structure, and the two sides of the fluid channel are the inlet end and the outlet end respectively. According to the utility model, a brand new elbow pipe structure is designed, and the elbow pipe structure has the advantages of simple structure, no sealing cover, reduction of hydraulic loss, small impact force influence of water flow on a wall surface and the like, and can be used for a water conveying pipeline of fire fighting equipment and other devices needing larger and rapid water flow to pass through.

Description

Technical Field

[0001] The utility model relates to the technical field of pipelines and fire-fighting equipment, in particular to a bend pipe, a conveying device using the bend pipe, and fire-fighting equipment. Background Art

[0002] Currently, the delivery pipes used in fire extinguishing devices include a straight pipe portion and a curved pipe portion, which are mostly cast using an integrated molding process. When water flows from the straight pipe portion to the curved pipe portion, the rapid change in flow direction can produce a large impact force on the wall surface of the curved pipe sealing cover, generating loud noise and easily causing water leakage over time. Furthermore, the decrease in water flow velocity can lead to indirect flow interruption and irregular water flow. CN219208833U discloses a delivery pipe for fire extinguishing devices. The pipe comprises a guide structure that is clamped at the opening of the water delivery elbow. The guide structure's shape matches the U-shaped inner cavity of the water delivery elbow, and the sidewalls of the guide structure fit the inner cavity of the water delivery elbow. The water elbow of this improved method still has a closing cover, and the wall surface of the closing cover is still subject to the impact force generated by the water flow, and the diversion structure is likely to fall off, which is likely to cause a major device failure. Although the setting of the diversion structure can buffer the impact of the water flow to a certain extent, it still poses a great challenge to the sealing of the closing cover and the water elbow. In addition, the setting of the diversion structure increases the complexity of the elbow casting to a certain extent, and the matching degree between the diversion structure and the inner cavity shape of the water elbow is also required. Therefore, the actual application effect may not be satisfactory. Utility Model Content

[0003] Aiming at the problems of large impact force, easy water leakage and water flow interruption in the existing water delivery elbow, the utility model provides an elbow, a delivery device and fire-fighting equipment using the elbow.

[0004] In order to solve the above technical problems, the technical solution of the utility model is:

[0005] In the first aspect, the utility model provides a curved pipe, wherein at least the interior of the curved pipe is a "U"-shaped structure 1, and a flow guide is provided at the center of the open end of the curved pipe, and the flow guide separates the open end of the curved pipe into an inlet end and an outlet end; the flow guide is provided with a "U"-shaped structure 2 matching the "U"-shaped structure 1, and a fluid channel is formed between the "U"-shaped structure 1 and the "U"-shaped structure 2, and the two sides of the fluid channel are the inlet end and the outlet end respectively.

[0006] Preferably, the flow guide and the curved pipe are an integral structure, or the flow guide and the curved pipe are separate structures.

[0007] Preferably, the flow guide and the bent pipe are split structures, and the open end of the "U"-shaped structure extends outward for a distance to form a mounting end one, and the mounting end one is provided with a plurality of mounting holes one; the flow guide has a mounting end two that matches the mounting end one, and the mounting end two is provided with mounting holes two that correspond one to one with the mounting holes one; the mounting end two is provided with the "U"-shaped structure two, and the mounting end two is also provided with through holes one and two corresponding to the inlet end and the outlet end respectively; more preferably, the "U"-shaped structure two is a hollow structure.

[0008] In the second aspect, the utility model provides a conveying device, comprising: the curved pipe and straight pipe described in the first aspect, the inlet end of the curved pipe being detachably connected to one end of the straight pipe through a connecting seat; a fixing plate is provided on the straight pipe, and the fixing plate is installed above the connecting seat.

[0009] Preferably, a plurality of bearings are provided inside the connecting seat, and the bearings are used to stabilize the straight tube; and / or a U-shaped groove is provided on the fixing plate.

[0010] In a third aspect, the utility model provides a fire-fighting equipment, comprising: the conveying device and the spraying device described in the second aspect; one end of the straight pipe of the conveying device is connected to the fire-fighting pipe, and one end of the curved pipe of the conveying device is connected to the spraying device.

[0011] Preferably, gear 1 is sleeved on the straight tube, and the gear 1 is meshed with gear 2 connected to motor 1. Motor 1 is mounted on a fixed plate, and motor 1 is used to drive gear 2 to rotate horizontally along gear 1, thereby driving the fixed plate, the connecting seat 1, the bent pipe, and the injection device to rotate horizontally; preferably, a two-way limit assembly is provided on the fixed plate, and the two-way limit assembly is used to realize any rotation of the fixed plate in the forward or reverse direction within an angular range of not less than 360°; more preferably, the two-way limit assembly includes a slider and a lever, and the slider is slidably connected to the fixed plate, and the lever is located at the bottom of gear 1. When the fixed plate rotates until the slider contacts the lever, the lever pushes the slider to continue sliding to a certain distance to ensure that the forward or reverse rotation limit angle of the fixed plate is not less than 360°.

[0012] Preferably, the injection device includes a second connecting seat, which is provided with an inlet, an outlet and a motor connection port. The inlet is connected to the outlet end of the bent pipe, the outlet is connected to the injection pipe, and the motor connection port is connected to the second motor. The second connecting seat swings up and down driven by the second motor.

[0013] Preferably, a reinforcing plate 1 is provided on the mounting end 2 of the bent pipe, and a reinforcing plate 2 is provided on the connecting seat 1. The reinforcing plate 1 and the reinforcing plate 2 are connected to enhance the operational stability and safety of the fire-fighting equipment; more preferably, a slide groove is provided on the reinforcing plate 2, and the connecting seat 2 is provided with a safety block matching the slide groove. When the connecting seat swings up and down, the safety block slides at a fixed distance in the slide groove to protect the connecting seat 2 from swinging up and down at an appropriate angle.

[0014] More preferably, a reinforcing rod is connected between the second reinforcing plate and the bent pipe.

[0015] The beneficial effects of the utility model are:

[0016] The utility model designs a new curved pipe structure, which has the advantages of simple structure, no closed cover, reduced hydraulic loss, and little impact of water flow on the wall. It can be used for water supply pipes of fire-fighting equipment and other devices that need to pass large and fast water flows. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the elbow of Example 1 of the present utility model.

[0018] Figure 2 It is a structural schematic diagram of the "U"-shaped structure 1 and the guide member of Example 1 of the present utility model, wherein Figure A is the "U"-shaped structure 1 and Figure B is the guide member.

[0019] Figure 3 This is a structural diagram of the flow guide and the elbow in Example 1 of the present invention, which are integrated into one.

[0020] Figure 4 This is a schematic structural diagram of the conveying device of Example 2 of the present utility model.

[0021] Figure 5 This is a structural schematic diagram of a connecting seat 1 of Example 2 of the present utility model, wherein Figure A is a stereoscopic diagram and Figure B is a cross-sectional diagram.

[0022] Figure 6 This is a schematic diagram of the overall structure of the fire-fighting equipment of Example 3 of the present utility model.

[0023] Figure 7 This is a structural schematic diagram of the injection device of Example 3 of the present utility model, wherein Figure A is the injection device and Figure B is the connecting seat 2.

[0024] Figure 8 This is a structural diagram of the bidirectional limit assembly of Example 3 of the present utility model.

[0025] Figure 9This is a structural schematic diagram of the slide groove on the reinforcing plate 2 of Example 3 of the utility model.

[0026] Figure 1-9 In the figure, 1-"U"-shaped structure 1, 2-flow guide, 3-inlet end, 4-outlet end, 5-"U"-shaped structure 2, 6-fluid channel, 7-mounting end 1, 8-mounting hole 1, 9-mounting end 2, 10-mounting hole 2, 11-through hole 1, 12-through hole 2, 13-straight pipe, 14-connecting seat 1, 15-fixed plate, 16-gear 1, 17-connecting plate with hole, 18-slider, 19-shift lever, 20-limiting groove, 21-connecting seat 2, 22-inlet, 23-outlet, 24-motor connecting port, 25-injection pipe, 26-reinforcement plate 1, 27-reinforcement plate 2, 28-slide groove, 29-nut mounting hole, 14-1-straight pipe connecting end, 14-2-elbow pipe connecting end, 14-3-bearing. DETAILED DESCRIPTION

[0027] The following will be combined with the accompanying drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the embodiments described are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of this application.

[0028] Example 1

[0029] like Figure 1 and Figure 2 As shown, this embodiment provides a curved pipe having a U-shaped structure 1 inside. A flow guide 2 is provided at the center of the curved pipe's open end, dividing the curved pipe's open end into an inlet end 3 and an outlet end 4. The flow guide 2 is provided with a second U-shaped structure 5 that matches the first U-shaped structure 1. A fluid channel 6 is formed between the first U-shaped structure 1 and the second U-shaped structure 5. The inlet end 3 and the outlet end 4 are located on either side of the fluid channel 6. In this embodiment, the flow guide and the curved pipe are separate structures.

[0030] In addition, the guide piece and the elbow can also be an integrated structure, for example: Figure 3 A structure shown.

[0031] Furthermore, in this embodiment, the flow guide 2 and the elbow are separate structures. The open end of the "U"-shaped structure 1 extends outward a distance to form a mounting end 7, and the mounting end 7 is provided with a plurality of mounting holes 8. The flow guide 2 has a mounting end 9 that matches the mounting end 7, and the mounting end 9 is provided with mounting holes 10 that correspond one to one with the mounting holes 8. The mounting end 9 is provided with the "U"-shaped structure 5, and the mounting end 9 is also provided with through holes 11 and 12 corresponding to the inlet end 3 and the outlet end 4, respectively. To ensure the convenience and uniformity of the process of manufacturing the "U"-shaped structure 5, the "U"-shaped structure 5 is a hollow structure. After the "U"-shaped structure 1 and the "U"-shaped structure 2, 5 are connected, a sealing structure is provided between the two. In this embodiment, the sealing structure is specifically a sealing ring.

[0032] In addition to being suitable for general needs to change the flow direction of fluid in a pipeline, the elbow of this embodiment is particularly suitable for changing the flow direction of large and rapid water flows. It has a good pipeline pressure buffering effect, reduces safety risks, and reduces water pressure loss.

[0033] Example 2

[0034] like Figure 4 As shown, this embodiment provides a conveying device, including: the curved pipe and the straight pipe 13 of Example 1, wherein the inlet end 3 of the curved pipe is detachably connected to one end of the straight pipe 13 via a connecting seat 14. The straight pipe 13 can be fixedly connected to the connecting seat 14 or rotatably connected to the connecting seat 14.

[0035] In this embodiment, if Figure 5 As shown, the straight tube 13 and the connecting seat 14 are rotatably connected, specifically: the connecting seat 14 is an L-shaped structure, the straight tube 13 is vertically inserted through one end of the connecting seat 14 (straight tube connecting end 14-1) and is connected to the bearing provided in the connecting seat 14, and the other end of the connecting seat 14 (elbow connecting end 14-2) is connected to the elbow by bolts. A fixing plate 15 is also provided on the straight tube 13 of the connecting seat 14, and the fixing plate 15 is installed above the connecting seat 14. The function of the fixing plate 15 is to facilitate the installation and disassembly of some auxiliary mechanisms, for example: a U-shaped groove is provided on the fixing plate 15, which can facilitate the installation and disassembly of the motor that drives the straight tube to rotate. And the rotation setting method can be: the straight tube 13 is fixed, and the motor drives the fixing plate 15 and the connecting seat 14 to rotate horizontally.

[0036] Furthermore, several bearings 14-3 are provided within the connecting seat 14, typically 1 to 2, preferably 2. In this embodiment 3, two bearings are installed. When the firefighting medium is introduced into the straight pipe 13, a large impact force is generated within the straight pipe 13. Multiple bearings, such as 2, can effectively stabilize the straight pipe 13 and ensure the stability of the connecting seat 14 during rotation. Furthermore, auxiliary structures can be provided on the outside of the connecting seat 14 as needed, such as a connecting plate 17 for mounting a water sprinkler, a water pump, a valve, a pipe connector, a reducer, etc. It can also serve as a reinforcement plate, i.e., strengthening the connection. Various holes can be provided on the connecting plate 17 as needed.

[0037] The conveying device of this embodiment is suitable for all application scenarios requiring fluid transportation, and is particularly suitable for scenarios where firefighting processes require large water flows, rapid water flows, and changes in water flow direction under high pressure.

[0038] Example 3

[0039] like Figure 6 As shown, this embodiment provides a fire-fighting equipment, including: the conveying device of embodiment 3 (the straight pipe 13 is rotatably connected to the connecting seat 14) and the injection device; one end of the straight pipe 13 of the conveying device is connected to the fire-fighting pipeline, and one end of the curved pipe of the conveying device is connected to the injection device (such as Figure 7 shown).

[0040] Furthermore, the straight tube 13 is sleeved with a gear 16, which is engaged with a gear 2 (not shown) connected to the motor 1. Driven by the motor 1, the gear 2 rotates on its own while revolving around the gear 16. The motor 1 is mounted on the fixed plate 15, and the motor 1 is used to drive the gear 2 to rotate horizontally along the gear 16, thereby driving the fixed plate 15, the connecting seat 14, the curved pipe, and the injection device to rotate horizontally. In order to achieve the fixed plate 15 to rotate arbitrarily in the forward or reverse direction within an angle range of not less than 360 degrees, a two-way limit assembly (such as Figure 8 The bidirectional limit assembly includes a slider 18, a lever 19, and a limit slot 20. The limit slot 20 is located on the fixed plate 15. The slider 18 is embedded in the limit slot 20 and is slidably connected to the fixed plate 15. The lever 19 is located at the bottom of the gear 16. When the fixed plate 15 rotates until the slider 18 contacts the lever 19, the lever 19 pushes the slider 18 to continue sliding within the limit slot to a certain distance, ensuring that the maximum rotation angle of the fixed plate 15 in the forward or reverse direction is not less than 360°.

[0041] Furthermore, if Figure 7As shown, the injection device includes a connecting seat 21, which is provided with an inlet 22, an outlet 23 and a motor connecting port 24. The inlet 22 is connected to the outlet end 3 of the bent pipe, the outlet 23 is connected to the injection pipe 25, and the motor connecting port 24 is connected to the motor 2 (not shown in the figure). The connecting seat 21 swings up and down driven by the motor 2.

[0042] Furthermore, a reinforcing plate 1 26 is provided on the installation end 2 9 of the elbow, and a reinforcing plate 2 27 is provided on the connecting seat 14. The reinforcing plate 1 26 and the reinforcing plate 2 27 are connected by bolts to enhance the operational stability and safety of the fire fighting equipment. Figure 9 and Figure 7 As shown, a slide groove 28 is provided on the reinforcing plate 27, and a safety block is provided on the connecting seat 21 to match the slide groove 28 (in this embodiment, the safety block is specifically a nut, which is installed in the nut mounting hole 29 of the connecting seat 2). When the connecting seat 21 swings up and down, the safety block slides at a fixed distance in the slide groove 28 to protect the connecting seat 21 from swinging up and down at an appropriate angle, for example: swinging within the range of 0-90°, 0-120°, 0-150°, and 0-180°. The swing range set in this embodiment is 0-120°. The reinforcing plate 1 26 and the elbow, and the reinforcing plate 2 27 and the connecting seat 1 14 can be a separate structure or an integrated structure. In this embodiment, an integrated structure is adopted.

[0043] Example 4

[0044] This embodiment provides firefighting equipment that differs from Embodiment 3 in that a reinforcing rod can be connected between reinforcing plate 27 and the elbow to further strengthen the connection between the elbow and the sprinkler, preventing water leakage at the connection. Furthermore, the closer the reinforcing rod is to the maximum upward angle of the sprinkler head, the better the protection.

[0045] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of this application, ordinary technicians in this field can also make many forms without departing from the purpose of this application and the scope of protection of the claims, all of which are within the protection of this application.

Claims

1. A pipe bend, characterized in that: At least the interior of the curved pipe is a "U"-shaped structure 1, and a flow guide is provided at the center of the open end of the curved pipe, and the flow guide separates the open end of the curved pipe into an inlet end and an outlet end; the flow guide is provided with a "U"-shaped structure 2 that matches the "U"-shaped structure 1, and a fluid channel is formed between the "U"-shaped structure 1 and the "U"-shaped structure 2, and the two sides of the fluid channel are the inlet end and the outlet end respectively.

2. The elbow according to claim 1, characterized in that The flow guide and the bent pipe are an integrated structure, or the flow guide and the bent pipe are separate structures.

3. The elbow according to claim 2, characterized in that The guide member and the bent pipe are separate structures, and the open end of the "U"-shaped structure extends outward for a distance to form a mounting end one, and the mounting end one is provided with a plurality of mounting holes one; the guide member has a mounting end two that matches the mounting end one, and the mounting end two is provided with mounting holes two that correspond one to one with the mounting holes one; the mounting end two is provided with the "U"-shaped structure two, and the mounting end two is also provided with through holes one and two corresponding to the inlet end and the outlet end respectively.

4. The elbow according to claim 3, characterized in that The second "U"-shaped structure is a hollow structure.

5. A conveying device, characterized in that: include: The curved pipe and straight pipe described in any one of claims 1 to 4, wherein the inlet end of the curved pipe is detachably connected to one end of the straight pipe via a connecting seat 1; a fixing plate is provided on the straight pipe, and the fixing plate is installed above the connecting seat 1.

6. The conveying device according to claim 5, characterized in that A plurality of bearings are provided inside the connecting seat 1, and the bearings are used to stabilize the straight tube; and / or a U-shaped groove is provided on the fixing plate.

7. A fire-fighting equipment, characterized in that: include: The conveying device and injection device according to claim 5 or 6; one end of the straight pipe of the conveying device is connected to the fire protection pipe, and one end of the curved pipe of the conveying device is connected to the injection device.

8. The fire fighting equipment according to claim 7, characterized in that: Gear 1 is sleeved on the straight tube, and gear 1 is engaged with gear 2 connected to motor 1. Motor 1 is installed on a fixed plate, and motor 1 is used to drive gear 2 to rotate horizontally along gear 1, thereby driving the fixed plate, the connecting seat 1, the curved tube, and the injection device to rotate horizontally.

9. The fire fighting equipment according to claim 8, characterized in that: The fixing plate is provided with a bidirectional limiting assembly, and the bidirectional limiting assembly is used to enable the fixing plate to rotate arbitrarily in the forward or reverse direction within an angular range of not less than 360°.

10. The fire fighting equipment according to claim 9, characterized in that: The two-way limit assembly includes a slider and a lever. The slider is slidably connected to the fixed plate. The lever is located at the bottom of the gear. When the fixed plate rotates until the slider contacts the lever, the lever pushes the slider to continue sliding to a certain distance to ensure that the forward or reverse rotation limit angle of the fixed plate is not less than 360°.

11. The fire fighting equipment according to claim 7 or 8, characterized in that: The injection device includes a second connecting seat, which is provided with an inlet, an outlet and a motor connecting port. The inlet is connected to the outlet end of the bent pipe, the outlet is connected to the injection pipe, and the motor connecting port is connected to the second motor. The second connecting seat swings up and down under the drive of the second motor.

12. The fire fighting equipment according to claim 11, characterized in that: A reinforcing plate 1 is provided on the second mounting end of the bent pipe, and a reinforcing plate 2 is provided on the first connecting seat. The reinforcing plate 1 and the reinforcing plate 2 are connected to enhance the operational stability and safety of the fire-fighting equipment.

13. The fire fighting equipment according to claim 12, characterized in that: A slide groove is provided on the reinforcing plate 2, and a safety block matching the slide groove is provided on the connecting seat 2. When the connecting seat swings up and down, the safety block slides at a fixed distance in the slide groove to protect the connecting seat 2 from swinging up and down at an appropriate angle.

14. The fire fighting equipment according to claim 13, characterized in that: A reinforcing rod is further connected between the second reinforcing plate and the bent pipe.

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