Constant-pressure and constant-flow circulating pump

Abstract

The utility model provides a constant-pressure constant-flow circulating pump which comprises a variable-frequency circulating pump, a water inlet pipe and a water outlet pipe are arranged on the variable-frequency circulating pump, one end of the water inlet pipe is connected with a turnover disc with the interior in a hollow state, filtering seams which are evenly distributed in the circumferential direction are formed in the periphery of the turnover disc, and a rotating shaft is arranged on one side in the turnover disc. One end of the rotating shaft is fixedly connected with a cantilever, and one end of the cantilever is rotatably connected with a roller which is in rolling fit with the inner peripheral wall of the turnover disc. According to the utility model, the water inlet pipe end of the variable frequency circulating pump is connected with the turnover disc, then the roller which rotates and revolves is arranged in the turnover disc, and the dredging teeth arranged on the roller can expel blockages in the filtering seams arranged on the periphery of the turnover disc when the roller rotates and revolves, so that the interior of the turnover disc is in a water supply full state; by means of the arrangement, the variable-frequency circulating pump can output constant-pressure and constant-flow water, and the flow and pressure of water circulation are guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to circulating water pump technical field, specifically for a kind of constant pressure constant flow circulating pump. BACKGROUND

[0002] Cooling water circulation system is often used in industrial production workshop of each field, mainly for providing cooling water for workshop equipment (use point) to exchange heat, adjust equipment operating temperature.The defects and deficiencies of prior art: the existing cooling water circulation system is only applicable to less cooling equipment (use point) and stable condition, if the same set of cooling water circulation system is used for multiple (set) cooling equipment (use point) and complex condition, cooling water pressure, flow rate is not stable or cooling water pump idling condition is easily appeared, eventually lead to energy consumption increase, heat exchange efficiency is low, cooling water pump damage and other problems.

[0003] Analysis finds that when using variable frequency circulating water pump to supply cooling water, impurities in cooling water can enter variable frequency circulating water pump or block the water inlet of circulating water pump, resulting in serious shortage of cooling water supply to water pump, so that water pump is difficult to extract enough, and then variable frequency circulating water pump is difficult to ensure constant pressure and constant flow circulating drainage, therefore, the market needs a variable frequency circulating water pump capable of extracting water body enough.

[0004] Therefore, the utility model provides a kind of constant pressure constant flow circulating pump. UTILITY MODEL CONTENT

[0005] In view of the deficiencies of prior art, the utility model aims to provide a kind of constant pressure constant flow circulating pump to solve the problems raised in the background art, and the utility model has the function of dredging water supply filter blockage, so that variable frequency circulating pump can reliably extract water body enough to ensure constant pressure and constant flow output water body.

[0006] In order to achieve the above purpose, the utility model is realized by the following technical scheme: a kind of constant pressure constant flow circulating pump, including variable frequency circulating pump, the variable frequency circulating pump is provided with water inlet pipe and water outlet pipe, one end of the water inlet pipe is connected with the hollow state of gyroscope, the outer periphery of the gyroscope is provided with the filter slot of uniform distribution, one side in the gyroscope is provided with the rotating shaft, one end of the rotating shaft is fixedly connected with cantilever, one end of the cantilever is rotatably connected with the roller that is rolling fit with the inner wall of gyroscope, the outer periphery wall of the roller is fixedly provided with the dredging tooth of uniform distribution and the plug-in fit of filter slot, one side outside the gyroscope is fixedly provided with the control motor for controlling the rotation of rotating shaft.

[0007] Further, the other side outside the gyroscope is fixedly connected with adapter elbow, and the adapter elbow is screw-connected with one end of the water inlet pipe.

[0008] Further, the middle part of the inner side of the rotating disc is fixedly connected with a limiting sleeve in rotation connection with the rotating shaft, the inner wall of the rotating disc is fixedly provided with an inner gear ring, and the outer part of the roller is fixedly provided with an outer gear ring in mesh with the inner gear ring.

[0009] Further, the middle part of the roller is fixedly connected with a positioning shaft, and the free end of the cantilever is fixedly connected with a positioning sleeve in rotation connection with the positioning shaft.

[0010] Further, one side of the cantilever is fixedly connected with an arc-shaped water pushing plate close to the roller, and the inner arc surface of the arc-shaped water pushing plate is opposite to the filter joint around the roller.

[0011] Further, the bottom of the rotating disc is provided with a plurality of supporting legs close to the outer periphery.

[0012] Further, the bottom of the supporting leg is bonded with a damping rubber pad.

[0013] The beneficial effects of the utility model are as follows:

[0014] 1. The utility model discloses a rotating disc connected with the inlet pipe end of the variable frequency circulating pump, and a self-rotating and revolving roller is arranged in the rotating disc, the dredging teeth on the roller can drive away the blockage in the filter joint around the rotating disc when the roller rotates and revolves, so that the water supply in the rotating disc is full, and the variable frequency circulating pump can output constant pressure and constant flow water, so that the flow and pressure of water circulation are ensured.

[0015] 2. The utility model discloses a cantilever and an arc-shaped water pushing plate on one side of the roller, when the roller revolves, the arc-shaped water pushing plate pushes out part of the water in the rotating disc, and the filter joint dredged by the dredging teeth is impacted, so that the probability of secondary blockage of the filter joint is greatly reduced, and the constant pressure and constant flow output of the variable frequency circulating pump is more reliable. DRAWINGS

[0016] Figure 1 It is a structure schematic view of the rotating disc of the constant pressure and constant flow circulating pump.

[0017] Figure 2 It is a structure schematic view of the rotating disc of the constant pressure and constant flow circulating pump. Figure 1 It is a structure schematic view of the rotating disc of the constant pressure and constant flow circulating pump.

[0018] Figure 3 It is a structure schematic view of the rotating disc of the constant pressure and constant flow circulating pump.

[0019] In the figure: 1, variable frequency circulating pump; 11, water inlet pipe; 12, water outlet pipe; 2, turntable; 21, filter slot; 22, adapter elbow; 23, limiting sleeve; 24, inner gear ring; 3, rotating shaft; 4, cantilever; 41, positioning sleeve; 5, roller; 52, outer gear ring; 53, positioning shaft; 6, dredging tooth; 7, control motor; 8, arc-shaped water pushing plate; 9, supporting leg; 91, shock-absorbing rubber pad. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, purposes and effects of the utility model easy to understand, the utility model is further described below in combination with specific embodiments.

[0021] Please refer to Figures 1 to 3 The utility model provides a kind of technical scheme: a constant pressure constant current circulating pump, including variable frequency circulating pump 1, variable frequency circulating pump 1 is provided with water inlet pipe 11 and water outlet pipe 12, one end of water inlet pipe 11 is connected with the inside hollow state turntable 2, it is preferred that another side fixedly connected with adapter elbow 22 outside turntable 2, and the adapter elbow 22 and the one end of water inlet pipe 11 are screw connection.The outer periphery of the turntable 2 is provided with the filter slot 21 that is evenly distributed in circumference, and the turntable 2 filters impurities in water body using filter slot 21, to avoid impurities into variable frequency circulating pump 1 and form pump blockage.

[0022] Further, one side in turntable 2 is provided with rotating shaft 3, one end of the rotating shaft 3 is fixedly connected with cantilever 4, one end of the cantilever 4 is rotatably connected with roller 5 that is rolling fit with the inner wall of turntable 2, the outer periphery of roller 5 is fixedly provided with dredging tooth 6 that is evenly distributed in circumference and is inserted fit with filter slot 21, when rotating shaft 3 rotates, roller 5 will revolve while rotating under the action of cantilever 4 and the inner wall of turntable 2, when roller 5 rotates, the dredging tooth 6 on it will be inserted into filter slot 21 that is evenly distributed in circumference in turn, so that impurities in filter slot 21 are removed, ensure that water body can smoothly enter turntable 2, so that variable frequency circulating pump 1 can extract sufficient water body.

[0023] Specifically, one side in the middle of turntable 2 is fixedly connected with limiting sleeve 23 that is rotatably connected with rotating shaft 3, the inner wall of turntable 2 is fixedly sleeved with inner gear ring 24, the outside of roller 5 is fixedly sleeved with outer gear ring 52 that is engaged with inner gear ring 24, so when roller 5 revolves, roller 5 will rotate under the engagement of outer gear ring 52 and inner gear ring 24, and then produce the effect that roller 5 rolls along the inner wall of turntable 2, so that each filter slot 21 will be cleared and handled by dredging tooth 6 on roller 5. Among them, the middle of roller 5 is fixedly connected with positioning shaft 53, and the free end of cantilever 4 is fixedly connected with positioning sleeve 41 that is rotatably connected with positioning shaft 53.

[0024] The control motor 7 is fixedly connected with the output shaft of the control motor 7 and the rotating shaft 3, and provides driving force for the rotation of the rotating shaft 3.

[0025] In this embodiment, the cantilever 4 is fixedly connected with the arc-shaped water pushing plate 8 close to the roller 5, and the inner arc surface of the arc-shaped water pushing plate 8 is opposite to the filter slot 21 around the roller 5. When the cantilever 4 operates, the arc-shaped water pushing plate 8 pushes the water around the roller 5, so that the water impacts the filter slot 21 around the roller 5, and impacts the blockage in the filter slot 21, thereby avoiding the secondary rapid blockage of the filter slot 21 by the impurities removed from the filter slot 21, and improving the reliability of the dredging process.

[0026] In this embodiment, the bottom of the rotating disc 2 is provided with a plurality of legs 9 close to the outer periphery, and the legs 9 improve the stability of the placement of the rotating disc 2. The bottom of the leg 9 is bonded with a shock-absorbing rubber pad 91, and the shock-absorbing rubber pad 91 reduces the vibration noise generated when the control motor 7 operates.

[0027] Working principle: when the circulating cooling water needs to be supplied, the variable frequency circulating pump 1 is placed in the cooling water tank, and the variable frequency circulating pump 1 is started after the pipeline is connected. The water in the cooling water tank enters the rotating disc 2 through the filter slot 21, and then is drawn away by the water inlet pipe 11. When the filter slot 21 is blocked, the water inlet amount in the rotating disc 2 is affected, so that the water inlet pipe 11 cannot draw enough water in the rotating disc 2. At this time, the control motor 7 is started, the rotating shaft 3 rotates, the cantilever 4 drives the roller 5 to revolve, and the roller 5 revolves under the meshing cooperation of the outer gear ring 52 and the inner gear ring 24. At this time, each filter slot 21 is inserted and dredged by the dredging teeth 6 on the roller 5, so as to ensure that the water enters the rotating disc 2 normally, and the rotating disc 2 can provide enough water to the water inlet pipe 11.

[0028] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. A constant pressure and constant flow circulating pump comprising a variable frequency circulating pump (1), a water inlet pipe (11) and a water outlet pipe (12) are arranged on the variable frequency circulating pump (1), characterized in that, One end of the water inlet pipe (11) is connected with the peripheral disc (2) with hollow interior, the outer periphery of the peripheral disc (2) is provided with the filter slot (21) uniformly distributed in the circumferential direction, one side in the peripheral disc (2) is provided with the rotating shaft (3), one end of the rotating shaft (3) is fixedly connected with the cantilever (4), one end of the cantilever (4) is rotatably connected with the roller (5) rolling with the inner circumferential wall of the peripheral disc (2), the outer circumferential wall of the roller (5) is fixedly provided with the dredging tooth (6) uniformly distributed in the circumferential direction and insertedly matched with the filter slot (21), one side outside the peripheral disc (2) is fixedly provided with the control motor (7) for controlling the rotation of the rotating shaft (3).

2. The constant pressure and flow circulating pump according to claim 1, characterized in that: The other side outside the peripheral disc (2) is fixedly connected with the adapter elbow (22), and one end of the adapter elbow (22) is screw-connected with the water inlet pipe (11).

3. The constant pressure and flow rate circulating pump according to claim 1, characterized in that: The middle of one side in the peripheral disc (2) is fixedly connected with the limiting sleeve (23) rotatably connected with the rotating shaft (3), the inner circumferential wall of the peripheral disc (2) is fixedly sleeved with the inner gear ring (24), and the outer portion of the roller (5) is fixedly sleeved with the outer gear ring (52) engaged with the inner gear ring (24).

4. The constant pressure and flow rate circulating pump according to claim 3, characterized in that: The middle of the roller (5) is fixedly connected with the positioning shaft (53), and the free end of the cantilever (4) is fixedly connected with the positioning sleeve (41) rotatably connected with the positioning shaft (53).

5. The constant pressure and flow rate circulating pump according to claim 1, characterized in that: One side of the cantilever (4) is fixedly connected with the arc-shaped water pushing plate (8) close to the roller (5), and the inner arc surface of the arc-shaped water pushing plate (8) is opposite to the filter slot (21) around the roller (5).

6. The constant pressure and flow rate circulating pump according to claim 1, characterized in that: The bottom of the peripheral disc (2) is provided with a plurality of supporting legs (9) close to the outer periphery.

7. The constant pressure and flow rate circulating pump according to claim 6, characterized in that: The bottom of the supporting leg (9) is bonded with the damping rubber pad (91).

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