Water pump structure capable of preventing reverse rotation

Abstract

The utility model relates to the technical field of water pumps, in particular to a water pump structure capable of preventing reverse rotation, which is characterized in that an impeller of equipment cannot rotate reversely when the water pump structure passes through a main body structure, that is, the equipment cannot rotate reversely when a wiring mode is wrong or software is not matched, and a main body is supported by a main supporting structure and an auxiliary supporting structure; the position of the main body structure can be fixed, the main supporting structure and the auxiliary supporting structure are connected and fixed through the connecting device, the vibration amplitude of the device in the operation process is reduced, and the practicability of the device is improved. Comprising a main body structure, an auxiliary supporting structure, a main supporting structure and a connecting device, the auxiliary supporting structure and the main supporting structure are both installed on the main body, and the connecting device is connected with the main supporting structure and the auxiliary supporting structure.

Description

Technical Field

[0001] This utility model relates to the technical field of water pumps, and in particular to a water pump structure that prevents reverse rotation. Background Technology

[0002] The working principle of a water pump is to utilize the rotation of the impeller to cause the medium to rotate as well, and then be thrown out of the impeller under the action of centrifugal force. A vacuum zone is formed in the central part of the impeller, so the medium is continuously drawn in while being continuously driven to rotate by the impeller and then thrown out by centrifugal force, thus working continuously. The water pump always operates in a single direction; the other direction of rotation is considered invalid.

[0003] The direction of water pump rotation is generally determined by the connection of the three-phase wires and the controller. However, if the wiring method and software are incompatible, the water pump's rotation direction will be different from the design direction, resulting in invalid output and failure to meet the working requirements.

[0004] The existing Chinese utility model patent with application number CN972 Blade Outer Shell 6.8 relates to a water pump, including a pump body, pump cover, impeller, shaft, mechanical shaft seal, shaft sleeve and inlet and outlet, which can reduce costs and reduce hydraulic losses in the outlet pipeline.

[0005] However, the above-mentioned device does not have the ability to prevent the impeller from reversing in actual use, that is, it cannot distinguish in time when the equipment impeller reverses. Utility Model Content

[0006] To solve the above-mentioned technical problems, this utility model provides a water pump structure that prevents the impeller from reversing when passing through the main structure, that is, the equipment will not reverse even if the wiring method is incorrect or the software is incompatible. The main body is supported by a main support structure and a secondary support structure, so that the main body structure can be fixed in position. The main support structure and the secondary support structure are connected and fixed by a connecting device, which reduces the vibration amplitude of the equipment during operation and improves the practicality of the device.

[0007] This utility model discloses a water pump structure to prevent reverse rotation; it includes a main structure, a secondary support structure, a primary support structure, and a connecting device. Both the secondary and primary support structures are mounted on the main body, and the connecting device connects to both the primary and secondary support structures. The impeller cannot reverse rotation when passing through the main structure, meaning the equipment will not reverse even if the wiring is incorrect or the software is incompatible. The primary and secondary support structures support the main body, allowing for positional fixation. The connecting device connects and fixes the primary and secondary support structures, reducing the vibration amplitude of the equipment during operation and improving the practicality of the device.

[0008] Preferably, the main structure includes an outer casing, a lower cover plate, a volute, a rotor shaft, a one-way bearing, a deep groove ball bearing, and blades. The lower cover plate is connected to the rear of the outer casing, and the volute is connected to the front of the outer casing. The brushless motor stator is located inside the outer casing, and the rotor shaft body is located in the inner hole of the brushless motor stator. The front of the rotor shaft is connected to the lower cover plate via a one-way bearing, and the rear of the rotor shaft is connected to the rear of the outer casing via a deep groove ball bearing. The rear of the rotor shaft extends through the outer casing into the volute and connects to the blades. The rotating rotor shaft drives the blades to rotate, thereby cooperating with the volute to pump liquid. The one-way bearing restricts the rotation direction of the rotor shaft, preventing it from rotating in the opposite direction. Once started, the rotor shaft cannot rotate, making it easy for operators to quickly identify problems and improving the practicality of the device.

[0009] Preferably, it also includes a heat sink, and a groove is provided in the middle of the front end of the lower cover plate, in which multiple sets of heat sinks are evenly distributed; the heat dissipation capacity of the main structure is increased by the multiple sets of heat sinks evenly distributed in the groove at the rear of the lower cover plate, thereby improving the practicality of the device.

[0010] Preferably, the secondary support structure includes an internal threaded connecting seat, a secondary triangular support frame, and connecting bolts. A set of internal threaded connecting seats is respectively provided on the lower left and right sides of the front end face of the lower cover plate. The upper left and right sides of the secondary triangular support frame are connected to the internal threaded connecting seats by connecting bolts. After the lower part of the secondary triangular support frame is welded to the working point, it is connected to the internal threaded connecting seat by the upper part of the secondary triangular support frame through connecting bolts. This reduces the vibration amplitude of the equipment during operation, improves the stability of the device, and allows the equipment to be quickly removed when it is not in operation to prevent loss, thus improving the practicality of the device.

[0011] Preferably, the main support structure includes a limiting bracket, a main triangular support frame, a connecting seat, and a circular through hole. A set of limiting brackets is provided on the left and right sides of the lower end face of the outer casing, and two sets of threaded connection holes are provided on the lower end face of the limiting brackets. A set of connecting seats is provided on the left and right sides of the upper part of the main triangular support frame, and a limiting groove is provided on the upper end face of the connecting seat corresponding to the position of the limiting bracket. A set of circular through holes is provided on the left and right sides of the lower end face of the main triangular support frame. The limiting brackets and connecting seats limit the connection position between the main triangular support frame and the outer casing, facilitating quick positioning and connection of the main triangular support frame by the operator. The circular through holes on the lower end face of the main triangular support frame facilitate quick bolt connection by the operator. By welding the lower part of the main triangular support frame to the working position, the vibration amplitude of the equipment during operation is reduced, improving the stability and practicality of the device.

[0012] Preferably, the connecting device includes a connecting plate, limiting connecting rods, fixing nuts, and fixing bolts. A set of limiting connecting rods is connected to the left and right sides of the rear end face of the connecting plate. The front part of the limiting connecting rods is threaded. A set of circular holes is provided on the left and right sides of the lower part of the secondary triangular support frame and the main triangular support frame. The fixing nut is connected to the limiting connecting rods via threads and is located between the secondary and main triangular support frames. The rear end face of the limiting connecting rods is provided with threaded holes. The fixing bolts pass through the rear end face of the main triangular support frame and connect to the threaded holes on the limiting connecting rods. The limiting connecting rods provide a limiting connection between the secondary and main triangular support frames. Rotating the fixing nut in conjunction with the connecting plate fixes the position of the secondary triangular support frame on the limiting connecting rods. The fixing bolts, connected to the limiting connecting rods, fix the position of the main triangular support frame. This ensures that the secondary and main triangular support frames provide stable support for the main structure, facilitating rapid handling and placement of the equipment, maintaining stability during movement and storage, and improving the practicality of the device.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: the impeller of the equipment cannot reverse when passing through the main structure, that is, the equipment will not reverse when the wiring method is incorrect or the software is incompatible. The main body is supported by the main support structure and the secondary support structure, so that the main body structure can be fixed in position. The main support structure and the secondary support structure are connected and fixed by the connecting device, which reduces the vibration amplitude of the equipment during operation and improves the practicality of the device. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the isometric structure of this utility model;

[0015] Figure 2 This is a first cross-sectional structural diagram of the present invention;

[0016] Figure 3 This is a schematic diagram of the second cross-sectional structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the third cross-sectional structure of this utility model;

[0018] The following components are marked in the attached diagram: 1. Outer casing; 2. Lower cover plate; 3. Volute; 4. Rotor shaft; 5. One-way bearing; 6. Deep groove ball bearing; 7. Blade; 8. Stator of brushless motor; 9. Heat sink; 10. Internal threaded connector; 11. Secondary triangular support frame; 12. Connecting bolt; 13. Limiting bracket; 14. Main triangular support frame; 15. Connecting seat; 16. Circular through hole; 17. Connecting plate; 18. Limiting connecting rod; 19. Fixing nut; 20. Fixing bolt. Detailed Implementation

[0019] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete.

[0020] Example

[0021] like Figure 1 , Figure 2 , Figure 3 and Figure 4 The secondary support structure is connected to the main structure, the main support structure is connected to the main structure, and the connecting device is connected to both the secondary support structure and the main support structure.

[0022] First, the lower part of the secondary triangular support frame 11 is welded to the work point. Then, the upper part of the secondary triangular support frame 11 is connected to the internal threaded connecting seat 10 via connecting bolts 12. The limiting seat 13 and the connecting seat 15 limit the connection position between the main triangular support frame 14 and the outer shell 1, facilitating the operator to quickly position and connect the main triangular support frame 14. The circular through hole 16 on the lower end face of the main triangular support frame 14 facilitates the operator to quickly connect the bolts. The lower part of the main triangular support frame 14 is welded to the work position, or... The limiting connecting rod 18 provides a limiting connection between the secondary triangular support frame 11 and the main triangular support frame 14. The position of the secondary triangular support frame 11 on the limiting connecting rod 18 is fixed by rotating the fixing nut 19 in conjunction with the connecting plate 17. The position of the main triangular support frame 14 is fixed by connecting the fixing bolt 20 to the limiting connecting rod 18. The rotating rotor shaft 4 drives the blade 7 to rotate, thereby cooperating with the volute 3 to pump the liquid. The rotation direction of the rotor shaft 4 is restricted by the one-way bearing 5, so that the rotor shaft 4 cannot rotate in the opposite direction.

[0023] The main structure includes an outer shell 1, a lower cover plate 2, a volute 3, a rotor shaft 4, a one-way bearing 5, a deep groove ball bearing 6, and blades 7. The lower cover plate 2 is connected to the rear of the outer shell 1, and the volute 3 is connected to the front of the outer shell 1. The brushless motor stator 8 is located inside the outer shell 1. The main body of the rotor shaft 4 is located in the inner hole of the brushless motor stator 8. The front of the rotor shaft 4 is connected to the lower cover plate 2 through the one-way bearing 5, and the rear of the rotor shaft 4 is connected to the rear of the outer shell 1 through the deep groove ball bearing 6. The rear of the rotor shaft 4 extends through the outer shell 1 into the volute 3 and connects with the blades 7.

[0024] It also includes a heat sink 9, and a groove is provided in the middle of the front end of the lower cover plate 2, in which multiple sets of heat sinks 9 are evenly distributed;

[0025] The secondary support structure includes an internal threaded connecting seat 10, a secondary triangular support frame 11, and connecting bolts 12. A set of internal threaded connecting seats 10 is provided on the lower left and right sides of the front end face of the lower cover plate 2. The upper left and right sides of the secondary triangular support frame 11 are connected to the internal threaded connecting seats 10 by connecting bolts 12.

[0026] The main support structure includes a limiting card seat 13, a main triangular support frame 14, a connecting seat 15, and a circular through hole 16. A set of limiting card seats 13 is provided on the left and right sides of the lower end face of the outer shell 1. Two sets of threaded connecting holes are provided on the lower end face of the limiting card seat 13. A set of connecting seats 15 is provided on the left and right sides of the upper part of the main triangular support frame 14. A limiting groove is provided on the upper end face of the connecting seat 15 corresponding to the position of the limiting card seat 13. A set of circular through holes 16 is provided on the left and right sides of the lower end face of the main triangular support frame 14.

[0027] The connecting device includes a connecting plate 17, a limiting connecting rod 18, a fixing nut 19, and a fixing bolt 20. A set of limiting connecting rods 18 are connected to the left and right sides of the rear end face of the connecting plate 17, and the front part of the limiting connecting rod 18 is provided with threads. A set of circular holes are provided on the left and right sides of the lower part of the secondary triangular support frame 11 and the main triangular support frame 14, respectively. The fixing nut 19 is connected to the limiting connecting rod 18 through threads and is located between the secondary triangular support frame 11 and the main triangular support frame 14. The rear end face of the limiting connecting rod 18 is provided with threaded holes. The fixing bolt 20 passes through the rear end face of the main triangular support frame 14 and is connected to the threaded holes on the limiting connecting rod 18.

[0028] The impeller cannot reverse when passing through the main structure, meaning the equipment will not reverse even if the wiring is incorrect or the software is incompatible. The main and secondary support structures support the main body, allowing the main structure to be fixed in position. The main and secondary support structures are connected and fixed through a connecting device, reducing the vibration amplitude of the equipment during operation and improving the practicality of the device.

[0029] like Figures 1 to 4As shown, this utility model discloses a water pump structure for preventing reverse rotation. During operation, the lower part of the secondary triangular support frame 11 is first welded to the working point, and then the upper part of the secondary triangular support frame 11 is connected to the internal threaded connecting seat 10 via connecting bolts 12. The limiting seat 13 and the connecting seat 15 limit the connection position between the main triangular support frame 14 and the outer casing 1, facilitating quick positioning and connection of the main triangular support frame 14 by the operator. The circular through hole 16 on the lower end face of the main triangular support frame 14 facilitates quick bolt connection by the operator. The lower part is welded to the working position, or the auxiliary triangular support frame 11 and the main triangular support frame 14 are limited and connected by the limiting connecting rod 18. The position of the auxiliary triangular support frame 11 on the limiting connecting rod 18 is fixed by rotating the fixing nut 19 in conjunction with the connecting plate 17. The position of the main triangular support frame 14 is fixed by connecting the fixing bolt 20 to the limiting connecting rod 18. The rotating rotor shaft 4 drives the blade 7 to rotate, thereby cooperating with the volute 3 to pump the liquid. The rotation direction of the rotor shaft 4 is restricted by the one-way bearing 5, so that the rotor shaft 4 cannot rotate in the opposite direction.

[0030] The one-way bearing 5 of the water pump structure for preventing reverse rotation of this utility model is commercially available. Technical personnel in this industry only need to install and operate it according to the accompanying instruction manual, without requiring any creative work from those skilled in the art.

[0031] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A water pump structure to prevent reverse rotation; characterized in that, It includes a main structure, a secondary support structure, a primary support structure, and connecting devices. The secondary support structure and the primary support structure are both installed on the main structure, and the connecting devices are connected to the primary support structure and the secondary support structure.

2. The water pump structure for preventing reverse rotation as described in claim 1, characterized in that, The main structure includes an outer casing, a lower cover plate, a volute, a rotor shaft, a one-way bearing, a deep groove ball bearing, and blades. The lower cover plate is connected to the rear of the outer casing, and the volute is connected to the front of the outer casing. The brushless motor stator is located inside the outer casing, and the rotor shaft body is located in the inner hole of the brushless motor stator. The front of the rotor shaft is connected to the lower cover plate through a one-way bearing, and the rear of the rotor shaft is connected to the rear of the outer casing through a deep groove ball bearing. The rear of the rotor shaft extends through the outer casing into the volute and connects with the blades.

3. The water pump structure for preventing reverse rotation as described in claim 2, characterized in that, It also includes a heat sink, with a groove in the center of the front end of the lower cover, in which multiple heat sinks are evenly distributed.

4. The water pump structure for preventing reverse rotation as described in claim 3, characterized in that, The secondary support structure includes an internal threaded connecting seat, a secondary triangular support frame, and connecting bolts. A set of internal threaded connecting seats is provided on the lower left and right sides of the front end face of the lower cover plate, and the upper left and right sides of the secondary triangular support frame are connected to the internal threaded connecting seats by connecting bolts.

5. The water pump structure for preventing reverse rotation as described in claim 4, characterized in that, The main support structure includes a limiting bracket, a main triangular support frame, a connecting seat, and a circular through hole. A set of limiting brackets is provided on the left and right sides of the lower end face of the outer shell. Two sets of threaded connecting holes are provided on the lower end face of the limiting bracket. A set of connecting seats is provided on the left and right sides of the upper part of the main triangular support frame. A limiting groove is provided on the upper end face of the connecting seat corresponding to the position of the limiting bracket. A set of circular through holes is provided on the left and right sides of the lower end face of the main triangular support frame.

6. The water pump structure for preventing reverse rotation as described in claim 5, characterized in that, The connecting device includes a connecting plate, a limiting connecting rod, a fixing nut, and a fixing bolt. A set of limiting connecting rods is connected to the left and right sides of the rear end face of the connecting plate. The front part of the limiting connecting rod is provided with threads. A set of circular holes is provided on the left and right sides of the lower part of the secondary triangular support frame and the main triangular support frame. The fixing nut is connected to the limiting connecting rod through threads and is located between the secondary triangular support frame and the main triangular support frame. The rear end face of the limiting connecting rod is provided with a threaded hole. The fixing bolt passes through the rear end face of the main triangular support frame and is connected to the threaded hole on the limiting connecting rod.

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