Vertical multi-stage fire pump set

Abstract

The utility model relates to the technical field of fire pumps, in particular to a vertical multistage fire pump set which comprises a pump body, the left side of the pump body is fixedly connected with a first connecting pipe, the left side of the first connecting pipe is fixedly provided with a second connecting pipe through a bolt, and the outer side of the first connecting pipe is provided with a locking assembly used for limiting loosening of the bolt. The two guide blocks can be driven to move close to or away from each other by rotating a threaded rod of the locking assembly, the two supporting blocks, the second limiting frame and the first limiting frame are driven to move at the same time in a matched mode, the bolt is limited after the second limiting frame moves to the left side of the bolt, the nut is limited after the first limiting frame moves to the right side of the nut, and the bolt is prevented from loosening. A sealing gasket is arranged between the second connecting pipe and the first connecting pipe, the sealing performance between the second connecting pipe and the first connecting pipe is improved, and then the transmission effect of the fire pump can be improved.

Description

Technical Field

[0001] This utility model relates to the field of fire pump technology, specifically a vertical multistage fire pump set. Background Technology

[0002] In the modern fire protection field, fire pump sets are the core equipment of the fire protection system, undertaking the key task of providing reliable water power for fire fighting and rescue. Vertical multistage fire pump sets are widely used in various buildings, factories and public facilities because of their small footprint, high head and ability to meet the fire water supply needs of different building heights and complex working conditions.

[0003] In the structure of a vertical multistage fire pump set, bolt connection is an indispensable and important component. However, in actual use, the pump set will generate continuous mechanical vibration during startup, shutdown and operation. This vibration will subject the bolts to alternating loads. Over time, the preload of the bolts will gradually decrease, leading to bolt loosening. Therefore, a vertical multistage fire pump set is proposed to solve the above problems. Utility Model Content

[0004] The present invention aims to solve the above problems and thus provide a vertical multistage fire pump set.

[0005] The technical solution adopted by this utility model to solve the aforementioned problem is:

[0006] A vertical multistage fire pump unit includes a pump body. A connecting pipe 1 is fixedly connected to the left side of the pump body. A connecting pipe 2 is fixedly installed on the left side of the connecting pipe 1 by bolts. A locking assembly is provided on the outside of the connecting pipe 1. The locking assembly includes a fixing frame, which is fixedly connected to the outer wall of the connecting pipe 1. A threaded rod is rotatably connected to the top of the fixing frame. A guide plate is threadedly connected to the outer wall of the threaded rod. Connecting blocks are hinged to the left and right sides of the guide plate. A guide block is hinged to the end of the connecting block away from the guide plate. A support block is fixedly connected to the bottom of the guide block. One end of the support block extends towards one side of the connecting pipe 2. Movable blocks are provided on the opposite surfaces of the two support blocks. The movable blocks are horizontally slidably connected to the fixing frame. Limiting frames 1 are fixedly connected to the opposite surfaces of the two support blocks. The two limiting frames 1 are located on both sides of the connecting pipe 1 and are positioned opposite each other. Limiting frames 2 are fixedly connected to the opposite surfaces of the two support blocks near their ends. The limiting frames 2 are located on both sides of the connecting pipe 2 and are positioned opposite each other.

[0007] A turntable is fixedly connected to the top of the threaded rod; by rotating the turntable, the threaded rod is driven to rotate, thereby adjusting the device and making operation more labor-saving.

[0008] The connecting block is set to an inclined shape; this ensures that during the rotation of the threaded rod and the up-and-down movement of the guide plate, the guide blocks on both sides can move relative to each other or away from each other.

[0009] The second limiting frame is U-shaped, enabling it to simultaneously limit different bolts.

[0010] The second limiting frame is located on the left side of the bolt, and the first limiting frame is U-shaped.

[0011] A positioning rod is fixedly connected to the top of the fixed frame. The positioning rod passes through the guide plate and is slidably connected to the guide plate, thus guiding the up and down movement of the guide plate.

[0012] A sealing assembly is provided between the second connecting pipe and the first connecting pipe. The sealing assembly includes a sealing gasket, and a sealing groove is provided on the left side of the first connecting pipe to ensure the seal between the second connecting pipe and the first connecting pipe.

[0013] The right side of the connecting pipe is provided with a sealing groove 2, which is opposite to the position of the sealing groove 1. A sealing gasket is installed between the sealing groove 1 and the sealing groove 2 to form a seal.

[0014] Compared with the prior art, the outstanding features of this utility model, which adopts the above technical solution, are:

[0015] In this invention, rotating the threaded rod can move two sets of guide blocks closer together or further apart, which in turn moves two sets of support blocks and limit frame two simultaneously with limit frame one. Limit frame two moves to the left side of the bolt, limiting the bolt, while limit frame one moves to the right side of the nut, limiting the nut and preventing the bolt from loosening. A sealing gasket is placed between connecting pipe two and connecting pipe one to increase the sealing between them, thereby improving the transmission efficiency of the fire pump. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of an embodiment of the present utility model;

[0017] Figure 2 This is a three-dimensional structural diagram of the fixing frame according to an embodiment of the present utility model;

[0018] Figure 3 This is a three-dimensional cross-sectional structural diagram of the fixing frame in an embodiment of the present utility model;

[0019] Figure 4 This is a schematic diagram showing the disassembled structure of connecting pipe two and connecting pipe one in an embodiment of this utility model;

[0020] The components in the diagram are labeled as follows: Pump body 1, Connecting pipe 1 2, Connecting pipe 2 3, Bolt 4, Sealing gasket 5, Limiting frame 1 21, Limiting frame 2 22, Support block 23, Positioning rod 24, Connecting block 25, Guide block 26, Fixing frame 27, Threaded rod 28, Guide plate 29, Moving block 210, Sealing groove 1 51, Sealing groove 2 52. Detailed Implementation

[0021] The present invention will be further described below with reference to embodiments, the purpose of which is only to better understand the content of the present invention. Therefore, the examples given do not limit the scope of protection of the present invention.

[0022] See Figures 1-4 A vertical multistage fire pump unit includes a pump body 1. A connecting pipe 2 is fixedly connected to the left side of the pump body 1. A connecting pipe 3 is fixedly installed on the left side of the connecting pipe 2 by bolts 4. A locking assembly is provided on the outside of the connecting pipe 2. The locking assembly includes a fixing frame 27, which is fixedly connected to the outer wall of the connecting pipe 2. A threaded rod 28 is rotatably connected to the top of the fixing frame 27. A guide plate 29 is threadedly connected to the outer wall of the threaded rod 28. Connecting blocks 25 are hinged to the left and right sides of the guide plate 29, and a guide block is hinged to the end of the connecting block 25 away from the guide plate 29. 26. A support block 23 is fixedly connected to the bottom end of the guide block 26. One end of the support block 23 extends toward one side of the connecting pipe 2. A moving block 210 is provided on the opposite surface of the two support blocks 23. The moving block 210 is horizontally slidably connected to the fixed frame 27. A limiting frame 1 21 is fixedly connected to the opposite surface of the two support blocks 23. The two limiting frames 1 21 are located on both sides of the connecting pipe 2 and are positioned opposite each other. A limiting frame 22 is fixedly connected to the opposite surface of the two support blocks 23 and is located near the end. The limiting frame 22 is located on both sides of the connecting pipe 2 and is positioned opposite each other.

[0023] A turntable is fixedly connected to the top of the threaded rod 28; by rotating the turntable, the threaded rod 28 is rotated, thereby adjusting the device and making operation more labor-saving.

[0024] The connecting block 25 is set in an inclined shape to ensure that the guide blocks 26 on both sides can move relative to each other or away from each other during the rotation of the threaded rod 28 and the up-and-down movement of the guide plate 29.

[0025] The second limiting frame 22 is set in a U-shape, so that the second limiting frame 22 can simultaneously limit different bolts 4.

[0026] The second limiting frame 22 is located on the left side of the bolt 4, and the first limiting frame 21 is set in a U-shape.

[0027] A positioning rod 24 is fixedly connected to the top of the fixed frame 27. The positioning rod 24 passes through the guide plate 29 and is slidably connected to the guide plate 29; it guides the up and down movement of the guide plate 29.

[0028] A sealing assembly is provided between the second connecting pipe 3 and the first connecting pipe 2. The sealing assembly includes a sealing gasket 5, and a sealing groove 51 is provided on the left side of the first connecting pipe 2; to ensure the seal between the second connecting pipe 3 and the first connecting pipe 2.

[0029] The right side of the connecting pipe 2 3 is provided with a sealing groove 2 52 that is opposite to the position of the sealing groove 1 51. The sealing gasket 5 is installed between the sealing groove 1 51 and the sealing groove 2 52 to form a seal.

[0030] Working principle: After normal installation and tightening of bolts 4 and nuts to connect pipe 2 and pipe 3, rotate the turntable at the top of threaded rod 28. Since threaded rod 28 is rotatably connected to the top of fixed frame 27 and its outer wall is threadedly connected to guide plate 29, as threaded rod 28 rotates, guide plate 29 will move upward under the guidance of positioning rod 24. Positioning rod 24 is fixed to the top of fixed frame 27, restricting guide plate 29 to only move up and down. The connecting blocks 25 hinged on both sides of guide plate 29 are inclined. When guide plate 29 moves upward, according to its inclined structure, the guide blocks 26 hinged at the ends of the two connecting blocks 25 will... The opposing forces move in opposite directions, thereby causing the support block 23, which is fixedly connected to the bottom of the guide block 26, to move inward. The moving block 210, which is fixedly connected to the surface of the support block 23, slides on the fixed frame 27 to ensure the stable movement of the support block 23. As the support block 23 moves, the limiting frame 1 21 and the limiting frame 22 on its surface also move together. The limiting frame 1 21 is two sets of U-shaped, which move and limit the movement to the right side of the nut and to the outside of the bolt 4. The limiting frame 22 is U-shaped, which moves and limits the movement to the left side of the bolt 4. This stabilizes and limits the bolt 4 and the nut, preventing them from loosening due to vibration or other factors during the operation of the pump unit.

[0031] When it is necessary to remove the second connecting pipe 3, the threaded rod 28 is rotated in the opposite direction, the guide plate 29 moves downward, and the connecting block 25 drives the guide block 26 and the support block 23 to move outward, which in turn drives the first limiting frame 21 and the second limiting frame 22 to move outward and disengage from the bolt 4 and nut, thus quickly releasing the lock and facilitating the disassembly and maintenance of the first connecting pipe 2 and the second connecting pipe 3.

[0032] This invention allows two sets of guide blocks to move closer or further apart by rotating the threaded rod. This, in turn, moves two sets of support blocks and limit frame two simultaneously with limit frame one. Limit frame two moves to the left side of the bolt, limiting it, while limit frame one moves to the right side of the nut, limiting it and preventing loosening. A sealing gasket is placed between connecting pipe two and connecting pipe one to increase their sealing performance, thereby improving the transmission efficiency of the fire pump.

[0033] The above description is only a preferred embodiment of the present utility model and does not limit the scope of the present utility model. All equivalent changes made based on the content of the present utility model specification and its drawings are included within the scope of the present utility model.

Claims

1. A vertical multistage fire pump unit, comprising a pump body (1), wherein a connecting pipe (2) is fixedly connected to the left side of the pump body (1), characterized in that: Connecting pipe 2 (3) is fixedly installed on the left side of connecting pipe 1 (2) by bolt (4). A locking assembly is provided on the outside of connecting pipe 1 (2). The locking assembly includes a fixing frame (27). The fixing frame (27) is fixedly connected to the outer wall of connecting pipe 1 (2). A threaded rod (28) is rotatably connected to the top of the fixing frame (27). A guide plate (29) is threadedly connected to the outer wall of the threaded rod (28). Connecting blocks (25) are hinged to the left and right sides of the guide plate (29). A guide block (26) is hinged to the end of the connecting block (25) away from the guide plate (29). A guide block (26) is fixedly connected to the bottom end of the guide block (26). Support block (23), one end of support block (23) extends to one side of connecting pipe two (3), and moving block (210) is provided on the opposite surface of the two support blocks (23). The moving block (210) is horizontally slidably connected to the fixed frame (27). Limiting frame one (21) is fixedly connected on the opposite surface of the two support blocks (23). The two limiting frames one (21) are located on both sides of the connecting pipe one (2) and are in opposite positions. Limiting frame two (22) is fixedly connected on the opposite surface of the two support blocks (23) and is located near the end. Limiting frame two (22) is located on both sides of the connecting pipe two (3) and is in opposite positions.

2. A vertical multistage fire pump set according to claim 1, characterized in that: A turntable is fixedly connected to the top of the threaded rod (28).

3. A vertical multistage fire pump set according to claim 1, characterized in that: The connecting block (25) is set at an angle.

4. A vertical multistage fire pump set according to claim 1, characterized in that: The second limiting frame (22) is set in a U-shape.

5. A vertical multistage fire pump set according to claim 1, characterized in that: The second limiting frame (22) is located on the left side of the bolt (4), and the first limiting frame (21) is set in a U-shape.

6. A vertical multistage fire pump set according to claim 1, characterized in that: The top of the fixed frame (27) is fixedly connected to a positioning rod (24), which extends upward through the guide plate (29) and is slidably connected to the guide plate (29).

7. A vertical multistage fire pump set according to claim 1, characterized in that: A sealing assembly is provided between the second connecting pipe (3) and the first connecting pipe (2). The sealing assembly includes a sealing gasket (5), and a sealing groove (51) is provided on the left side of the first connecting pipe (2).

8. A vertical multistage fire pump set according to claim 7, characterized in that: The right side of the connecting pipe 2 (3) is provided with a sealing groove 2 (52) which is opposite to the sealing groove 1 (51). The sealing gasket (5) is installed between the sealing groove 1 (51) and the sealing groove 2 (52) to form a seal.

Images