Pipeline connection pre-positioning structure for fire pump

Abstract

The utility model relates to the technical field of fire pumps, in particular to a pipeline connection pre-positioning structure for a fire pump, which comprises a water outlet pipe and a water supply pipe, the positioning mechanism comprises an arc-shaped block abutting against the lower end of the surface of the water supply pipe, and the bottom of the arc-shaped block is fixedly connected with a guide rod; according to the device, a guide rod is inserted into a preformed hole in a flange plate of the water supply pipe through an arc-shaped block, so that a ball is rolled on the outer surface of the flange plate, and the arc-shaped block is bound to the lower end of the surface of the water supply pipe through a binding belt and a fixing block, so that the guide rod is stably inserted into a preformed hole in a flange plate of a water outlet pipe; compared with an existing method for aligning the flange plate, the method has the advantages that the guide rods are quickly inserted into the preformed holes in the flange plate, the balls are quickly rolled on the outer surface of the flange plate, accordingly, the water outlet pipe and the water supply pipe can be quickly aligned, and the practicability of the pipeline connection pre-positioning structure is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of fire pump technology, and in particular to a pre-positioning structure for a pipeline connection of a fire pump. Background Technology

[0002] A fire pump is a water pump specifically designed for fire fighting, fire water supply, and other fire-fighting operations. Before using a fire pump, the pipeline needs to be assembled. During the assembly, a pre-positioning structure is required to quickly and accurately connect the corresponding pipelines to the fire pump pipeline.

[0003] According to the Chinese patent "A Pre-positioning Structure for Pipeline Connection of a Fire Pump" (authorization announcement number "CN221236880U"), the process involves first aligning the flanges at both ends of the outlet pipe and the supply pipe, aligning the pre-positioning slots on the flanges, and then using a connecting plate, a pre-positioning plate, a pull buckle, a positioning magnetic sheet, a movable fastening strip, and an auxiliary spring to achieve stable insertion of the pre-positioning plate into the inner wall of the pre-positioning slot. This completes the pre-positioning of the flanges at both ends of the outlet pipe and the supply pipe, and finally, a secure connection is achieved using connecting bolts.

[0004] In the aforementioned application, the water supply pipes connected to the fire pump outlet pipe are typically large in size and heavy in weight, which causes the flanges to take too long to align, thereby reducing the practicality of the pre-positioning structure for pipe connections.

[0005] Therefore, a pre-positioning structure for pipe connection of fire pumps is proposed to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to provide a pre-positioning structure for pipe connections of fire pumps to solve the above-mentioned problems, thereby improving the problem that the flange alignment process takes too long.

[0007] This utility model achieves the above-mentioned objective through the following technical solution: a pre-positioning structure for a fire pump pipe connection, comprising: an outlet pipe and a delivery pipe; a positioning mechanism, the positioning mechanism including an arc-shaped block abutting against the lower end of the delivery pipe surface, a guide rod fixedly connected to the bottom of the arc-shaped block, the lower end of the guide rod being flat-topped and conical, a guide block fixedly connected to the surface of the arc-shaped block, a ball bearing rolledly connected to the surface of the guide block, a strap fixedly connected to one side of the arc-shaped block, and a fixing block fixedly connected to the other end of the strap, the end of the fixing block contacting the end of the arc-shaped block. Through the arc-shaped block, the guide rod is inserted into a pre-drilled hole on the delivery pipe flange, causing the ball bearing to roll against the outer surface of the flange. Through the strap and the fixing block, the arc-shaped block is bound to the lower end of the delivery pipe surface, thereby ensuring the guide rod is stably inserted into the pre-drilled hole on the outlet pipe flange, and the ball bearing is stably rolled against the outer surface of the outlet pipe flange, thus quickly aligning the outlet pipe and delivery pipe, ensuring the practicality of the pipe connection pre-positioning structure.

[0008] Preferably, a rubber rod is slidably connected to the upper end of the inner wall of the fixing block, and the surface of the rubber rod is engaged with the inner wall of the arc-shaped block. The rubber rod ensures that the fixing block is positioned on the arc-shaped block, guaranteeing the stability of the strapping on the surface of the water pipe.

[0009] Preferably, a sliding rod is fixedly connected to the top of the fixing block, and the upper end of the inner wall of the rubber rod is slidably connected to the surface of the sliding rod. The sliding rod limits the upward movement range of the rubber rod, preventing it from detaching from the fixing block.

[0010] Preferably, an insert rod is slidably connected to the upper end of the inner wall of the rubber rod, and the surface of the insert rod is engaged with the lower end of the inner wall of the slide rod.

[0011] Preferably, a spring is fixedly connected to the opposite end of the insertion rod and the rubber rod. The insertion rod and the spring lock the rubber rod in place, ensuring that the rubber rod is stably engaged within the arc-shaped block, thereby ensuring the stability of the arc-shaped block installed on the water supply pipe.

[0012] Preferably, a limiting wheel is rotatably connected to the inner wall of the fixing block, and the surface of the limiting wheel contacts the surface of the arc-shaped block. The limiting wheel and the fixing block together limit the movement of the strap.

[0013] Preferably, a sliding rod is fixedly connected to the upper surface of the rubber rod, and the upper inner wall of the insertion rod is slidably connected to the surface of the sliding rod. The sliding rod restricts the movement range of the insertion rod, preventing it from detaching from the rubber rod.

[0014] The beneficial effects of this utility model are:

[0015] 1. By using an arc-shaped block, the guide rod is inserted into the reserved hole on the water supply pipe flange, and the ball bearings are rolled on the outer surface of the flange. By using a strap and a fixing block, the arc-shaped block is bound to the lower end of the water supply pipe surface, thereby allowing the guide rod to be stably inserted into the reserved hole on the outlet pipe flange, and the ball bearings to be stably rolled on the outer surface of the outlet pipe flange. Compared with the long time consumption of existing flange alignment, this method allows the guide rod to be quickly inserted into the reserved hole on the flange, and the ball bearings to be quickly rolled on the outer surface of the flange, thereby quickly aligning the outlet pipe and the water supply pipe, ensuring the practicality of the pre-positioning structure for pipe connection.

[0016] 2. The rubber rod is used to position the fixing block on the arc-shaped block, ensuring the stability of the strapping on the water supply pipe surface. The insertion rod and spring are used to lock the rubber rod, ensuring that the rubber rod is stably locked in the arc-shaped block, thus ensuring the stability of the arc-shaped block installed on the water supply pipe. Attached Figure Description

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

[0018] Figure 2 This is a schematic diagram of the positioning mechanism of this utility model;

[0019] Figure 3 This is a cross-sectional view of the arc-shaped block and guide block of this utility model;

[0020] Figure 4 for Figure 3 A magnified view of A in the middle.

[0021] In the diagram: 1. Outlet pipe; 2. Supply pipe; 3. Positioning mechanism; 31. Arc block; 32. Guide rod; 33. Guide block; 34. Ball bearing; 35. Strap; 36. Fixing block; 37. Rubber rod; 38. Limiting wheel; 39. Slide rod; 310. Insert rod; 311. Spring; 312. Moving rod. Detailed Implementation

[0022] 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.

[0023] In practical implementation: such as Figure 1-4As shown, a pre-positioning structure for a fire pump pipeline connection includes: an outlet pipe 1 and a supply pipe 2; a positioning mechanism 3, which includes an arc-shaped block 31 abutting against the lower end of the surface of the supply pipe 2, a guide rod 32 fixedly connected to the bottom of the arc-shaped block 31, the lower end of the guide rod 32 being flat-topped conical, a guide block 33 fixedly connected to the surface of the arc-shaped block 31, a ball bearing 34 rollingly connected to the surface of the guide block 33, a strap 35 fixedly connected to one side of the arc-shaped block 31, and a fixing block 36 fixedly connected to the other end of the strap 35, the end of the fixing block 36 contacting the end of the arc-shaped block 31. The ball bearing 34 is a rubber component, and the strap 35 is a nylon component.

[0024] The bottom end of the water outlet pipe 1 is connected to a fire pump, and the bottom of the fire pump is equipped with a base.

[0025] During pipe connection, the arc-shaped block 31 is pressed against the surface of the water supply pipe 2, allowing the guide rod 32 to be inserted into the pre-drilled hole on the flange of the water supply pipe 2. The ball bearing 34 then rolls against the outer surface of the flange. At this point, the fixing block 36 is pulled and moved onto the arc-shaped block 31, allowing the strapping 35 to be secured to the water supply pipe 2, locking the arc-shaped block 31 onto the water supply pipe 2. Then, a specialized hoisting tool, such as an electric hoist, is used to hoist the water supply pipe 2 above the outlet pipe 1. The installer holds the water supply pipe 2, allowing the electric hoist to slowly lower it until the lower end of the pipe forms a flat-topped cone shape. The guide rod 32 is smoothly inserted into the reserved hole of the outlet pipe 1 flange, so that the ball 34 rolls on the outer surface of the outlet pipe 1 flange. At this time, the electric hoist presses the bottom end of the water supply pipe 2 against the top end of the outlet pipe 1, thereby quickly and accurately aligning the reserved hole on the water supply pipe 2 flange with the reserved hole on the outlet pipe 1 flange. The bolts are inserted one by one into the reserved holes on the flange. At this time, the electric wrench is used to install the nut thread on the bolt surface and press it against the end of the flange, so that the outlet pipe 1 and the water supply pipe 2 on the fire pump are quickly connected. Other pipes are connected in the same way.

[0026] When a fire occurs in a commercial venue such as a shopping mall, the smoke and fire sensor transmits the signal from inside the mall to the fire pump, causing the fire pump to start automatically. The fire pump then draws stored water to power the fire hydrant system and the automatic sprinkler system for firefighting operations.

[0027] like Figure 4As shown, a rubber rod 37 is slidably connected to the upper end of the inner wall of the fixing block 36, and the surface of the rubber rod 37 is engaged with the inner wall of the arc-shaped block 31. A sliding rod 39 is fixedly connected to the top of the fixing block 36, and the upper end of the inner wall of the rubber rod 37 is slidably connected to the surface of the sliding rod 39. An insert rod 310 is slidably connected to the upper end of the inner wall of the rubber rod 37, and the surface of the insert rod 310 is engaged with the lower end of the inner wall of the sliding rod 39. A spring 311 is fixedly connected to the opposite end of the insert rod 310 and the rubber rod 37. A moving rod 312 is fixedly connected to the upper end of the surface of the rubber rod 37, and the upper end of the inner wall of the insert rod 310 is slidably connected to the surface of the moving rod 312.

[0028] The rubber rod 37 is pushed down on the surface of the slide rod 39 and locked into the arc-shaped block 31. At this time, the elastic force of the spring 311 pushes the insertion rod 310 to move on the surface of the moving rod 312 and lock into the inner wall of the slide rod 39.

[0029] like Figure 3 As shown, the inner wall of the fixed block 36 is rotatably connected to the limiting wheel 38, and the surface of the limiting wheel 38 contacts the surface of the arc-shaped block 31.

[0030] In use, the arc-shaped block 31 is pressed against the surface of the water supply pipe 2, allowing the guide rod 32 to be inserted into the pre-drilled hole on the flange of the water supply pipe 2. The ball bearing 34 rolls against the outer surface of the flange of the water supply pipe 2. At this time, the fixing block 36 is pulled to move and fit onto the arc-shaped block 31, allowing the strap 35 to be secured to the water supply pipe 2. The rubber rod 37 is pushed down on the surface of the sliding rod 39 and engages with the arc-shaped block 31. The elastic force of the spring 311 pushes the insertion rod 310 to move on the surface of the moving rod 312 and engage with the inner wall of the sliding rod 39, locking the arc-shaped block 31 onto the water supply pipe 2. Then, a specialized hoisting tool, such as an electric hoist, is used to hoist the water supply pipe 2 above the outlet pipe 1. The installer... The operator guides the water supply pipe 2, causing the electric hoist to slowly lower it. This allows the guide rod 32, with its flat-topped conical shape at the lower end, to be smoothly inserted into the pre-drilled hole on the flange of the outlet pipe 1. The ball bearing 34 then rolls against the outer surface of the flange of the outlet pipe 1. At this point, the electric hoist brings the bottom end of the water supply pipe 2 against the top end of the outlet pipe 1, quickly and accurately aligning the pre-drilled hole on the flange of the water supply pipe 2 with the pre-drilled hole on the flange of the outlet pipe 1. The bolts are then inserted one by one into the pre-drilled holes on the flange. An electric wrench is then used to thread the nuts onto the bolt surfaces and press them against the end of the flange, quickly connecting the outlet pipe 1 and the water supply pipe 2 on the fire pump. Other pipes are then connected in the same manner.

[0031] It should be noted that the water outlet pipe 1, water supply pipe 2, and fire pump mentioned above are all components with relatively mature existing technology. The specific models can be selected according to actual needs. At the same time, the fire pump can be powered by the built-in power supply or by the mains power. The specific power supply method will be selected according to the situation and will not be elaborated here.

[0032] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A pre-positioning structure for a fire pump pipeline connection, characterized in that, include: Water outlet pipe (1) and water supply pipe (2); The positioning mechanism (3) includes an arc-shaped block (31) that abuts against the lower end of the surface of the water pipe (2). A guide rod (32) is fixedly connected to the bottom of the arc-shaped block (31). The lower end of the surface of the guide rod (32) is flat-topped and conical. A guide block (33) is fixedly connected to the surface of the arc-shaped block (31). A ball bearing (34) is rolled on the surface of the guide block (33). A strap (35) is fixedly connected to one side of the arc-shaped block (31). A fixing block (36) is fixedly connected to the other end of the strap (35). The end of the fixing block (36) contacts the end of the arc-shaped block (31).

2. The pre-positioning structure for a fire pump pipeline connection according to claim 1, characterized in that: A rubber rod (37) is slidably connected to the upper end of the inner wall of the fixed block (36), and the surface of the rubber rod (37) is engaged with the inner wall of the arc-shaped block (31).

3. The pre-positioning structure for a fire pump pipeline connection according to claim 2, characterized in that: The top of the fixed block (36) is fixedly connected to a slide rod (39), and the upper end of the inner wall of the rubber rod (37) is slidably connected to the surface of the slide rod (39).

4. The pre-positioning structure for a fire pump pipeline connection according to claim 3, characterized in that: The upper end of the inner wall of the rubber rod (37) is slidably connected to the insert rod (310), and the surface of the insert rod (310) is engaged with the lower end of the inner wall of the slide rod (39).

5. The pre-positioning structure for a fire pump pipeline connection according to claim 4, characterized in that: A spring (311) is fixedly connected to the opposite end of the insertion rod (310) and the rubber rod (37).

6. The pre-positioning structure for a fire pump pipeline connection according to claim 1, characterized in that: The inner wall of the fixed block (36) is rotatably connected to a limiting wheel (38), and the surface of the limiting wheel (38) contacts the surface of the arc-shaped block (31).

7. A pre-positioning structure for a fire pump pipeline connection according to claim 5, characterized in that: The upper surface of the rubber rod (37) is fixedly connected to the moving rod (312), and the upper inner wall of the insert rod (310) is slidably connected to the surface of the moving rod (312).

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