Water pump parallel-series pressure stabilizing device

Abstract

The utility model relates to the technical field of fire fighting, in particular to a water pump parallel-series pressure stabilizing device which comprises a water bag, a drainage valve is arranged on the water bag in a communicated mode, a plurality of water inlet valves are arranged at one end of the water bag in a communicated mode, and a plurality of water outlet valves are arranged at the other end of the water bag in a communicated mode. The water outlet valve and the water inlet valve are respectively connected with a second connecting plate through a connecting mechanism, the two second connecting plates are rotatably connected with a plurality of gears through bearings, the plurality of gears are meshed with racks, and the plurality of gears are connected with valve rods of the water outlet valve and the water inlet valve through a coaxial rotating mechanism. According to the utility model, a plurality of water inlet valves and a plurality of water outlet valves can be simultaneously closed or opened conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of fire fighting, in particular to a water pump series parallel voltage stabilizing device. Background Art

[0002] Fire pumps are usually connected to fire hydrants, and the water pressure of fire hydrants is much greater than the inlet pressure of fire pumps, which can easily damage fire pumps or destroy the sealing of fire pumps. In the prior art, the pressure stabilizing device for fire pumps uses a water bag with a drain port on the top for draining water pressure. It is easy to carry and can reduce the water pressure inside the fire pump, and can realize parallel and series connection of water flow. However, since there are multiple water inlet valves and water outlet valves on the water bag, it takes multiple operations to close or open it, which increases the complexity of operation. Utility Model Content

[0003] The utility model aims to solve the problem that a plurality of water inlet valves and water outlet valves are provided on the water bag in the prior art, resulting in multiple operations required for closing or opening, which increases the complexity of the operation, and proposes a water pump parallel series voltage stabilizing device.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A water pump and series voltage stabilizing device is designed, comprising a water bag, wherein a drain valve is connected to the water bag, a plurality of water inlet valves are connected to one end of the water bag, and a plurality of water outlet valves are connected to the other end of the water bag, wherein the water outlet valve and the water inlet valve are respectively connected to a second connecting plate via a connecting mechanism, a plurality of gears are rotatably connected to two of the second connecting plates via bearings, a plurality of the gears are meshed with racks, and the plurality of the gears are connected to the valve stems of the water outlet valve and the water inlet valve via a coaxial rotating mechanism.

[0006] Preferably, the connecting mechanism includes a first connecting plate, the first connecting plate is fixedly connected to the water inlet valve, a connecting tube is fixedly connected to the first connecting plate, a connecting rod can be inserted into the connecting tube, the connecting rod is fixedly connected to the second connecting plate, and a tightening knob is threadedly connected to the connecting tube.

[0007] Preferably, the coaxial rotation mechanism includes a rectangular frame, which is fixedly connected to the valve stems of the water outlet valve and the water inlet valve. The second connecting plate is rotatably connected with a plurality of rotating shafts through bearings. The plurality of rotating shafts are respectively fixedly connected to the plurality of gears. The lower ends of the plurality of rotating shafts are fixedly connected with connecting edges. The lengths of the plurality of connecting edges decrease successively, and the plurality of connecting edges can be respectively inserted into the rectangular frame.

[0008] Preferably, an L-shaped sleeve is fixedly connected to the second connecting plate, and the L-shaped sleeve abuts against the rack.

[0009] Preferably, both ends of the rack are fixedly connected with stoppers.

[0010] Preferably, the plurality of gears and the rack are all made of plastic material.

[0011] Preferably, the fastening knob is provided with anti-slip grooves.

[0012] The utility model proposes a water pump parallel series voltage stabilizing device, which has the beneficial effect of driving a plurality of gears to rotate by moving the rack, thereby driving a plurality of valve stems to rotate, so as to facilitate closing or opening a plurality of water inlet valves and a plurality of water outlet valves at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a structural schematic diagram of a water pump parallel series voltage stabilizing device proposed by the utility model;

[0014] Figure 2 This is a front view of a water pump series voltage stabilizing device proposed by the utility model;

[0015] Figure 3 This is a schematic diagram of the structure of the gear rack part of a water pump series voltage stabilizing device proposed by the utility model. Figure 1 ;

[0016] Figure 4 This is a schematic diagram of the structure of the gear rack part of a water pump series voltage stabilizing device proposed by the utility model. Figure 2 .

[0017] In the figure: 1. water bag; 2. drain valve; 3. water inlet valve; 4. water outlet valve; 5. first connecting plate; 6. connecting tube; 7. connecting rod; 8. gear; 9. L-shaped sleeve; 10. rack; 11. second connecting plate; 12. rectangular frame; 13. rotating shaft; 14. connecting edge; 15. tightening knob. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0019] Example 1

[0020] Reference Figure 1-4A water pump parallel series voltage stabilizing device comprises a water bag 1, and a drain valve 2 is connected to the water bag 1. When the water pressure of the fire hydrant is large, the water pressure is discharged through the drain valve on the top of the water bag, so that the internal pressure of the fire pump can be ensured to be stable. One end of the water bag 1 is connected to multiple water inlet valves 3, and the other end of the water bag 1 is connected to multiple water outlet valves 4. The multiple water inlet valves 3 and the multiple water outlet valves 4 can be connected to multiple fire hydrants and fire pumps when supplying water.

[0021] The water outlet valve 4 and the water inlet valve 3 are respectively connected to a second connecting plate 11 through a connecting mechanism, and a plurality of gears 8 are rotatably connected to the two second connecting plates 11 through bearings. A rack 10 is meshed with the plurality of gears 8. The plurality of gears 8 are connected to the valve stems of the water outlet valve 4 and the water inlet valve 3 through a coaxial rotating mechanism. The rack 10 is moved to drive the plurality of gears 8 to rotate, thereby driving the plurality of valve stems to rotate, so as to facilitate the simultaneous closing or opening of the plurality of water inlet valves 3 and the plurality of water outlet valves 4.

[0022] The connection mechanism includes a first connection plate 5, which is fixedly connected to the water inlet valve 3, a connection tube 6 is fixedly connected to the first connection plate 5, a connection rod 7 can be inserted into the connection tube 6, the connection rod 7 is fixedly connected to the second connection plate 11, a tightening knob 15 is threadedly connected to the connection tube 6, and an anti-slip pattern is provided on the tightening knob 15. By adjusting the position of the connection rod 7 in the connection tube 6, the height of the first connection plate 5 is adjusted so that the connection edge 14 is inserted into the rectangular frame 12, and when the gear 8 rotates, the valve stem is driven to rotate to change the state of the valve.

[0023] The coaxial rotation mechanism includes a rectangular frame 12, which is fixedly connected to the valve stems of the water outlet valve 4 and the water inlet valve 3. A plurality of rotating shafts 13 are rotatably connected to the second connecting plate 11 through bearings. The plurality of rotating shafts 13 are respectively fixedly connected to the plurality of gears 8. The lower ends of the plurality of rotating shafts 13 are fixedly connected to connecting edges 14, which can be respectively inserted into the rectangular frame 12. Since the lengths of the plurality of connecting edges 14 decrease successively, the number of fire hydrants and fire pumps changes during water supply. The height of the connecting edges 14 can be adjusted to control the number of connecting edges 14 inserted into the rectangular frame 12. For example, when two valves need to be opened, two connecting edges 14 can be inserted into the rectangular frame 12, so as to push inward so as to simultaneously change the state of the access valves according to actual needs.

[0024] An L-shaped sleeve 9 is fixedly connected to the second connecting plate 11 , and the L-shaped sleeve 9 abuts against the rack 10 . The L-shaped sleeve 9 limits the rack 10 , thereby ensuring that the rack 10 can mesh with the gear 8 .

[0025] When in use, according to the number of fire hydrants and fire pumps during water supply, the height of the first connecting plate 5 is adjusted by adjusting the position of the connecting rod 7 in the connecting tube 6, and the number of connecting edges 14 inserted into the rectangular frame 12 is controlled. After completion, it is fixed by turning the tightening knob 15, and finally the rack 10 is moved to drive the gear 8 to rotate, which will drive the valve stem to rotate and simultaneously change the state of the connected valve.

[0026] Example 2

[0027] In the first embodiment, when the rack 10 moves, it is easy to cause the rack 10 and the gear 8 to be separated. Figure 3-4 As another preferred embodiment of the utility model, on the basis of embodiment 1, both ends of the rack 10 are fixedly connected with blocks. The block design is adopted to play a blocking role to prevent the rack 10 from moving too far, resulting in the rack 10 and the gear 8 being separated.

[0028] Example 3

[0029] Reference Figure 1-4 As another preferred embodiment of the utility model, on the basis of embodiment 1, the plurality of gears 8 and the rack 10 are all made of plastic material. By adopting plastic material compared with metal material, the weight of the device is reduced so that it can be carried during firefighting.

[0030] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A water pump parallel series voltage stabilizing device, comprising a water bag (1), characterized in that: The water bag (1) is connected to a drainage valve (2), one end of the water bag (1) is connected to a plurality of water inlet valves (3), and the other end of the water bag (1) is connected to a plurality of water outlet valves (4). The water outlet valves (4) and the water inlet valves (3) are respectively connected to second connecting plates (11) via connecting mechanisms, and two of the second connecting plates (11) are rotatably connected to a plurality of gears (8) via bearings. The plurality of gears (8) are meshed with racks (10), and the plurality of gears (8) are connected to valve stems of the water outlet valves (4) and the water inlet valves (3) via coaxial rotating mechanisms.

2. A water pump parallel series voltage stabilizing device according to claim 1, characterized in that: The connecting mechanism comprises a first connecting plate (5), the first connecting plate (5) being fixedly connected to the water inlet valve (3), a connecting tube (6) being fixedly connected to the first connecting plate (5), a connecting rod (7) being insertable in the connecting tube (6), the connecting rod (7) being fixedly connected to the second connecting plate (11), and a tightening knob (15) being threadedly penetrated and connected to the connecting tube (6).

3. A water pump parallel series voltage stabilizing device according to claim 1, characterized in that: The coaxial rotation mechanism comprises a rectangular frame (12), the rectangular frame (12) being fixedly connected to the valve stems of the water outlet valve (4) and the water inlet valve (3), the second connecting plate (11) being rotatably connected to a plurality of rotating shafts (13) via bearings, the plurality of rotating shafts (13) being respectively fixedly connected to the plurality of gears (8), the lower ends of the plurality of rotating shafts (13) being fixedly connected to connecting edges (14), the lengths of the plurality of connecting edges (14) being successively reduced, and the plurality of connecting edges (14) being respectively insertable into the rectangular frame (12).

4. A water pump parallel series voltage stabilizing device according to any one of claims 1 to 3, characterized in that: An L-shaped sleeve (9) is fixedly connected to the second connecting plate (11), and the L-shaped sleeve (9) is in abutment with the rack (10).

5. A water pump parallel series voltage stabilizing device according to claim 4, characterized in that: Both ends of the rack (10) are fixedly connected with stoppers.

6. A water pump parallel series voltage stabilizing device according to claim 1, characterized in that: The plurality of gears (8) and the rack (10) are all made of plastic material.

7. A water pump parallel series voltage stabilizing device according to claim 2, characterized in that: The fastening knob (15) is provided with anti-slip grooves.

Images