Urban and rural water supply system

Abstract

The utility model discloses an urban and rural water supply system which comprises a water storage tank and a flow adjusting device. A floating plate is mounted in the water storage tank; the top of the floating plate is fixedly connected with a first connecting rod; the flow adjusting device comprises a flowing cavity and a sliding cavity communicating with the top of the flowing cavity. A first sliding plate is slidably mounted in the sliding cavity; the lower end of the first sliding plate is connected with a baffle capable of being attached to the inner wall of the flowing cavity. Second connecting rods are fixedly connected to the upper ends of the first sliding plates; the second connecting rod penetrates through the top of the sliding cavity and is slidably connected with the sliding cavity; the transmission assembly is used for driving the first connecting rod and the second connecting rod to move reversely; a water inlet pipe and a water outlet pipe are respectively communicated with two sides of the flowing cavity; the water outlet pipe communicates with the inner cavity of the water storage tank. The utility model has the advantages that the opening and closing degree of the baffle plate in the flow adjusting device is slowly adjusted through the change of the liquid level in the water storage tank, so that the water inlet flow is adjusted, and the energy consumption and the operation cost are favorably reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of water supply systems, and particularly relates to an urban and rural water supply system. Background Art

[0002] In urban and rural water supply projects, to ensure water use reliability, water is usually pumped to a high-level water tank in the water use area by a water pump, and then the water from the high-level water tank is connected to each water use point. Due to the lack of input of flow signals, the water pump runs at power frequency for a long time and cannot automatically adjust the flow, resulting in water loss, increased energy consumption, and increased operating costs. Content of the Utility Model

[0003] The technical problem to be solved by the utility model is to provide an urban and rural water supply system that can adjust the inlet flow according to the change of the liquid level in the water storage tank, which helps to reduce energy consumption and operating costs.

[0004] To solve the above technical problem, the technical solution of the utility model is an urban and rural water supply system, including a water storage tank and a flow regulating device; a floating board is installed in the water storage tank; a first connecting rod is fixedly connected to the top of the floating board; the flow regulating device includes a flow cavity and a sliding cavity communicated with the top of the flow cavity; a first sliding board is slidably installed in the sliding cavity; a baffle that can be attached to the inner wall of the flow cavity is connected to the lower end of the first sliding board; a second connecting rod is fixedly connected to the upper end of the first sliding board; the second connecting rod penetrates through the top of the sliding cavity and is slidably connected to it; it also includes a transmission component for driving the first connecting rod and the second connecting rod to move in opposite directions; water inlet pipes and water outlet pipes are respectively communicated with both sides of the flow cavity; the water outlet pipe is communicated with the inner cavity of the water storage tank.

[0005] Further, a second sliding board is also slidably installed in the sliding cavity; the baffle is fixedly connected to the lower end of the second sliding board; the upper and lower ends of a spring are respectively fixedly connected to the lower end of the first sliding board and the upper end of the second sliding board.

[0006] Further, the transmission component includes a first rack fixedly connected to the top end of the first connecting rod, a second rack fixedly connected to the top of the second connecting rod, and an odd number of rotatably installed gears.

[0007] Further, when the number of gears is one, both sides of the gear are respectively meshed with the first rack and the second rack.

[0008] Further, when the number of gears is greater than or equal to three, adjacent gears are meshed with each other, and the gears located on both sides are respectively meshed with the first rack and the second rack.

[0009] Further, a fixed rod is fixedly connected to the upper part of the inner cavity of the water storage tank; a limiting tube is fixedly connected to one end of the fixed rod; the first connecting rod penetrates through the limiting tube and is slidably connected to it.

[0010] Further, the water inlet pipe is communicated with the water supply pipe network, and a variable-frequency water pump and a pipe network pressure monitor are installed on the water supply pipe network.

[0011] Further, the water outlet pipe is communicated with the bottom of the side wall of the water storage tank; an overflow pipe is communicated with the upper part of the side wall of the water storage tank.

[0012] Further, a groove is provided at the lower end of the flow cavity; a piston block is fixedly connected to the bottom of the baffle; the piston block is matched with the groove.

[0013] Further, transition chamfers are provided on both sides of the upper end and the lower end of the piston block; a sealing layer is wrapped around the outer wall of the piston block.

[0014] Advantages of the utility model:

[0015] As the liquid level in the water storage tank rises, the floating plate is lifted upward, and the first connecting rod rises accordingly. Under the action of the transmission component, the second connecting rod is pushed to descend, thereby driving the baffle to descend, so that the water inlet flow rate of the flow regulating device gradually decreases. Similarly, as the liquid level in the water storage tank drops, the floating plate moves downward, and the first connecting rod drops accordingly. Under the action of the transmission component, the second connecting rod is pushed to rise, thereby driving the baffle to rise, so that the water inlet flow rate of the flow regulating device gradually increases. By changing the liquid level in the water storage tank, the opening and closing degree of the baffle in the flow regulating device is slowly adjusted, thereby adjusting the water inlet flow rate. And the components related to the adjustment of the water inlet flow rate are all physically connected, without any electrical equipment, which is energy-saving and environment-friendly. Description of the drawings

[0016] Figure 1 It is a schematic diagram of the overall structure in the low liquid level state of Embodiment 1;

[0017] Figure 2 It is a schematic diagram of the overall structure in the low liquid level state of Embodiment 2;

[0018] Figure 3 For Figure 2 It is a schematic diagram of the flow regulating device and its internal structure in

[0019] Figure 4 For Figure 3 It is a sectional view taken along line A-A in

[0020] Figure 5 It is a schematic diagram of the overall structure in the high liquid level state of Embodiment 2;

[0021] Figure 6 It is a schematic diagram of the overall structure in the high liquid level state of Embodiment 3.

[0022] In the figure, 1 is a water storage tank, 2 is a floating plate, 3 is a first connecting rod, 4 is a first rack, 5 is a gear, 6 is a second rack, 7 is a second connecting rod, 8 is a flow regulating device, 801 is a flow chamber, 802 is a sliding chamber, 803 is a groove, 9 is a first sliding plate, 10 is a spring, 11 is a second sliding plate, 12 is a baffle, 13 is a piston block, 14 is a sealing layer, 15 is a water inlet pipe, 16 is a variable frequency water pump, 17 is a network pressure monitor, 18 is a water outlet pipe, 19 is a limiting pipe, 20 is a fixing rod, 21 is an overflow pipe. Specific embodiments

[0023] The specific embodiments of the present utility model will be further described below in conjunction with the accompanying drawings. It should be noted here that the description of these embodiments is used to help understand the present utility model, but does not constitute a limitation on the present utility model. In addition, the technical features involved in the various embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0024] Embodiment 1

[0025] An urban and rural water supply system, as Figure 1 shown, includes a water storage tank 1 and a flow regulating device 8; a floating plate 2 is installed in the water storage tank 1; a first connecting rod 3 is fixedly connected to the top of the floating plate 2; the flow regulating device 8 includes a flow chamber 801 and a sliding chamber 802 communicating with the top of the flow chamber 801; a first sliding plate 9 is slidably installed in the sliding chamber 802; a baffle 12 that can fit with the inner wall of the flow chamber 801 is connected to the lower end of the first sliding plate 9; a second connecting rod 7 is fixedly connected to the upper end of the first sliding plate 9; the second connecting rod 7 penetrates through the top of the sliding chamber 802 and is slidably connected thereto; a transmission assembly for driving the first connecting rod 3 and the second connecting rod 7 to move in opposite directions is further included; a water inlet pipe 15 and a water outlet pipe 18 are respectively communicated with both sides of the flow chamber 801; the water outlet pipe 18 is communicated with the inner cavity of the water storage tank 1.

[0026] As the liquid level in the water storage tank 1 rises, the floating plate 2 is lifted upward, and the first connecting rod 3 rises accordingly. Under the action of the transmission assembly, the second connecting rod 7 is pushed downward, thereby driving the baffle 12 to descend, so that the water inlet flow rate of the flow regulating device 8 gradually decreases. Similarly, as the liquid level in the water storage tank 1 drops, the floating plate 2 moves downward, the first connecting rod 3 drops accordingly. Under the action of the transmission assembly, the second connecting rod 7 is pushed upward, thereby driving the baffle 12 to rise, so that the water inlet flow rate of the flow regulating device 8 gradually increases. By changing the liquid level in the water storage tank 1, the opening degree of the baffle 12 in the flow regulating device 8 is slowly adjusted, thereby adjusting the water inlet flow rate. The components related to the water inlet flow rate adjustment are all physically connected, without any electrical equipment, which is energy-saving and environmentally friendly.

[0027] Specifically, the transmission assembly includes a first rack 4 fixedly connected to the top end of the first connecting rod 3, a second rack 6 fixedly connected to the top of the second connecting rod 7, and an odd number of rotatably mounted gears 5. Through the odd number of meshing gears 5, the upward movement of the first connecting rod 3 can be converted into the downward movement of the second connecting rod 7, thereby realizing the reverse movement of the first connecting rod 3 and the second connecting rod 7.

[0028] Specifically, the number of gears 5 is three, the adjacent gears 5 are meshed with each other, and the gears 5 located on both sides are respectively meshed with the first rack 4 and the second rack 6. The specific number of gears 5 and the modulus and number of teeth of each gear 5 can be selected according to the actual situation.

[0029] Specifically, a fixing rod 20 is fixedly connected to the upper part of the inner cavity of the water storage tank 1; one end of the fixing rod 20 is fixedly connected with a limiting tube 19; the first connecting rod 3 passes through the limiting tube 19, and the two are slidably connected. The limiting tube 19 plays a role in limiting and guiding, preventing the first connecting rod 3 from tilting during the up and down movement.

[0030] Specifically, the water inlet pipe 15 is communicated with the water supply network, and a variable frequency water pump 16 and a network pressure monitor 17 are installed on the water supply network. When the liquid level in the water storage tank 1 reaches the low liquid level, the flow regulating device 8 is in a fully open state. The network pressure monitor 17 monitors that the pressure in the water supply network drops to the set value, controls the output frequency of the variable frequency water pump 16 to increase, the rotation speed of the variable frequency water pump 16 increases, and the water supply flow rate increases; when the liquid level in the water storage tank 1 reaches the high liquid level, the baffle 12 in the flow regulating device 8 descends to abut against the flow cavity 801, the flow regulating device 8 is in a fully closed state, the network pressure monitor 17 monitors that the pressure in the water supply network rises to the set value, controls the output frequency of the variable frequency water pump 16 to decrease, the rotation speed of the variable frequency water pump 16 decreases, and the water supply flow rate decreases, or controls the variable frequency water pump 16 to close. The utility model can adjust the opening degree of the flow regulating device 8 according to the liquid level in the water storage tank 1, thereby adjusting the pressure in the water supply network, and adjusting the output frequency and water supply flow rate of the variable frequency water pump 16 according to the pressure in the water supply network, which helps to reduce energy consumption and operating costs.

[0031] Specifically, the water outlet pipe 18 is communicated with the bottom of the side wall of the water storage tank 1; an overflow pipe 21 is communicated with the upper part of the side wall of the water storage tank 1.

[0032] Specifically, a groove 803 is arranged at the lower end of the flow cavity 801; a piston block 13 is fixedly connected to the bottom of the baffle 12; the piston block 13 is matched with the groove 803. By using the matching of the groove 803 and the piston block 13, it can play a sealing role when the baffle 12 descends to the bottom, and in addition, it can reduce the impact force of the baffle 12.

[0033] Specifically, in order to specifically improve the sealing performance, transition chamfers are provided on both sides of the upper and lower ends of the piston block 13; the outer wall of the piston block 13 is wrapped with a sealing layer 14. The transition chamfers can play a guiding role.

[0034] Embodiment 2

[0035] An urban and rural water supply system, as Figures 2 - 5 shown, except for adding a second sliding plate 11 and a spring 10, the rest of the structure is the same as that in Embodiment 1. Specifically, a second sliding plate 11 is also slidably installed in the sliding cavity 802; the baffle 12 is fixedly connected to the lower end of the second sliding plate 11; the upper and lower ends of the spring 10 are respectively fixedly connected to the lower end of the first sliding plate 9 and the upper end of the second sliding plate 11.

[0036] Embodiment 3

[0037] An urban and rural water supply system, as Figure 6 shown, except that the number of gears 5 is different from that in Embodiment 2, the rest of the structure is the same as that in Embodiment 2. Specifically, the number of gears 5 is one, and both sides of the gear 5 are meshed with the first rack 4 and the second rack 6 respectively.

[0038] The working principle of the present utility model:

[0039] As the liquid level in the water storage tank 1 rises, the floating plate 2 is lifted upward, and the first connecting rod 3 rises accordingly. Under the action of the transmission component, the second connecting rod 7 is pushed to descend, thereby driving the baffle 12 to descend, so that the water inlet flow rate of the flow regulating device 8 gradually decreases. When the baffle 12 descends to abut against the flow cavity 801, the flow regulating device 8 is in a completely closed state, and the network pressure monitor 17 monitors that the pressure in the water supply network rises to the set value. At this time, the output frequency of the variable frequency water pump 16 is controlled to decrease, the rotation speed of the variable frequency water pump 16 decreases, and the water supply flow rate decreases.

[0040] Similarly, as the liquid level in the water storage tank 1 descends, the floating plate 2 moves downward, and the first connecting rod 3 descends accordingly. Under the action of the transmission component, the second connecting rod 7 is pushed to rise, thereby driving the baffle 12 to rise, so that the water inlet flow rate of the flow regulating device 8 gradually increases. When the baffle 12 rises to completely enter the sliding cavity 802, the flow regulating device 8 is in a completely open state, and the network pressure monitor 17 monitors that the pressure in the water supply network drops to the set value. At this time, the output frequency of the variable frequency water pump 16 is controlled to increase, the rotation speed of the variable frequency water pump 16 increases, and the water supply flow rate increases.

[0041] The present utility model can adjust the opening degree of the flow regulating device 8 according to the liquid level in the water storage tank 1, thereby adjusting the pressure in the water supply network, and adjusting the output frequency and water supply flow rate of the variable frequency water pump 16 according to the pressure in the water supply network, which helps to reduce energy consumption and operating costs.

[0042] The embodiments of the present utility model have been described in detail above in conjunction with the accompanying drawings, but the present utility model is not limited to the described embodiments. For those skilled in the art, without departing from the principle and spirit of the present utility model, various changes, modifications, substitutions, and variations made to these embodiments still fall within the protection scope of the present utility model.

Claims

1. A rural and urban water supply system, characterized in that: The invention comprises a water storage tank (1) and a flow regulating device (8); a floating plate (2) is installed in the water storage tank (1); a first connecting rod (3) is fixedly connected to the top of the floating plate (2); the flow regulating device (8) comprises a flow chamber (801) and a sliding chamber (802) connected to the top of the flow chamber (801); a first sliding plate (9) is slidably installed in the sliding chamber (802); a baffle (12) which can be fitted with the inner wall of the flow chamber (801) is connected to the lower end of the first sliding plate (9); a second connecting rod (7) is fixedly connected to the upper end of the first sliding plate (9); the second connecting rod (7) passes through the top of the sliding chamber (802), and the two are slidably connected; and a transmission assembly for driving the first connecting rod (3) and the second connecting rod (7) to move in opposite directions is also included; a water inlet pipe (15) and a water outlet pipe (18) are respectively connected to the two sides of the flow chamber (801); and the water outlet pipe (18) is connected to the inner chamber of the water storage tank (1).

2. The urban and rural water supply system according to claim 1, characterized in that: A second slide plate (11) is also slidably mounted in the sliding cavity (802); the baffle plate (12) is fixedly connected to the lower end of the second slide plate (11); and the upper and lower ends of the spring (10) are respectively fixedly connected to the lower end of the first slide plate (9) and the upper end of the second slide plate (11).

3. The urban and rural water supply system according to claim 1, characterized in that: The transmission assembly comprises a first rack (4) fixedly connected to the top of the first connecting rod (3), a second rack (6) fixedly connected to the top of the second connecting rod (7), and an odd number of rotatably mounted gears (5).

4. The urban and rural water supply system according to claim 3, characterized in that: When the number of the gear (5) is one, two sides of the gear (5) are respectively meshed with the first rack (4) and the second rack (6).

5. The urban and rural water supply system according to claim 3, characterized in that: When the number of the gears (5) is greater than or equal to three, adjacent gears (5) are meshed with each other, and the gears (5) located on both sides are respectively meshed with the first rack (4) and the second rack (6).

6. The urban and rural water supply system according to claim 1, characterized in that: A fixing rod (20) is fixedly connected to the upper part of the inner cavity of the water storage tank (1); one end of the fixing rod (20) is fixedly connected to a limiting tube (19); the first connecting rod (3) passes through the limiting tube (19), and the two are slidably connected.

7. The urban and rural water supply system according to claim 1, characterized in that: The water inlet pipe (15) is in communication with a water supply network, and a variable frequency water pump (16) and a network pressure monitor (17) are installed on the water supply network.

8. The urban and rural water supply system according to claim 1, characterized in that: The water outlet pipe (18) is in communication with the bottom of the side wall of the water storage tank (1); and the upper part of the side wall of the water storage tank (1) is in communication with an overflow pipe (21).

9. The urban and rural water supply system according to claim 1, characterized in that: The lower end of the flow chamber (801) is provided with a groove (803); the bottom of the baffle (12) is fixedly connected with a piston block (13); the piston block (13) matches the groove (803).

10. The urban and rural water supply system according to claim 9, characterized in that: Transition chamfers are provided on both sides of the upper end and the lower end of the piston block (13); and the outer wall of the piston block (13) is wrapped with a sealing layer (14).

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