Valveless pump overflow device
By designing an angled hole in the valveless pump to allow overflow fluid to flow back to the inlet hole, the problem of seal wear caused by fluid outflow is solved, the service life of the valveless pump is extended and the maintenance cost is reduced.
Patent Information
- Application Number
- CN202422412572.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-08
- Publication Date
- 2025-09-30
- Estimated Expiration
- 2034-10-08
AI Technical Summary
When a valveless pump pumps out fluid, the pressure inside the pump chamber increases, causing the fluid to overflow along the plunger wall. Long-term use will cause wear of the seal ring and plunger, increasing costs.
A valveless pump overflow device is designed. By adding a bent hole at the rear end of the plunger, the overflowing fluid is returned to the inlet hole, eliminating the sealing method, preventing fluid outflow and reducing wear.
It extends the service life of the valveless pump, avoids the wear of the seal ring and plunger, and reduces the maintenance and replacement costs.
Smart Images

Figure CN223398815U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to an overflow device for a valveless pump. Background Art
[0002] The valveless pump is a device widely used in industry. When the original valveless pump pumps out the fluid, the pressure inside the pump chamber increases, and the fluid will overflow along the plunger wall. Generally, a seal is used to seal the rear end of the plunger. Over time, the sealing ring and the plunger will wear each other, increasing costs.
[0003] Therefore, a valveless pump overflow device is needed. Utility Model Content
[0004] In order to solve the above problems, the utility model provides a valveless pump overflow device.
[0005] The utility model discloses a valveless pump overflow device, comprising a motor bracket, a motor, an adjustment seat, a circuit cover, an adjustment splint, an adjustment spring, a pump chamber, a circuit Hall, a light-emitting feedback signal, a bearing seat, an electromagnet and a plunger. The motor is provided under the motor bracket, an adjustment seat is provided on the motor bracket, a circuit cover is provided on the adjustment seat, an adjustment splint is provided on the adjustment seat, an adjustment spring is provided in the adjustment splint, a pump chamber is provided on the adjustment seat, and the adjustment seat is connected to the motor and the pump chamber.
[0006] A circuit Hall is provided on the adjustment seat, a circuit cover is provided outside the circuit Hall, a luminous feedback signal is provided on the circuit cover, and the luminous feedback signal is connected to the circuit Hall. A bearing seat is provided on the adjustment seat, an electromagnet is provided under the bearing seat, the circuit Hall corresponds to the electromagnet, a plunger is provided in the bearing seat, the pump chamber is provided in the plunger, and a plug is provided on the pump chamber.
[0007] In the above solution, the adjustment seat is provided with a motor screw, and the motor screw fastens the adjustment seat, the motor bracket and the motor together.
[0008] The above solution also includes a clamping plate screw, which passes through the adjusting clamping plate and presses the adjusting clamping plate to lock the adjusting seat.
[0009] In the above solution, an adjusting screw is provided in the adjusting spring, and an adjusting nut is provided in the adjusting splint.
[0010] In the above solution, a spherical bearing is provided on the bearing seat.
[0011] In the above solution, the pump chamber is locked on the bearing seat by pump chamber screws.
[0012] The above solution further comprises a circuit cover screw, which locks the circuit cover on the adjustment seat.
[0013] The advantages and beneficial effects of the present invention are as follows: the present invention provides a valveless pump overflow device. A folded hole is added to connect the rear end of the plunger to the inlet hole, so that the overflowing fluid flows back into the inlet hole, eliminating the phenomenon of fluid outflow, eliminating the original sealing method, preventing wear of the plunger and other items, and extending the service life. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.
[0015] Figure 1 It is a structural diagram of the utility model;
[0016] Figure 2 for Figure 1 Explosion diagram.
[0017] In the figure: 1. Motor bracket 2. Motor 3. Adjustment seat 4. Circuit cover
[0018] 5. Adjustment plate 6. Adjustment spring 7. Pump chamber 8. Circuit Hall
[0019] 9. Luminous feedback signal 10. Bearing seat 11. Electromagnet 12. Plunger
[0020] 13. Plug 14. Motor screw 15. Clamp screw 16. Adjustment screw
[0021] 17. Adjusting nut 18. Spherical bearing 19. Pump chamber screw 20. Circuit cover screw DETAILED DESCRIPTION
[0022] The following embodiments are used to further describe the specific embodiments of the present invention in conjunction with the accompanying drawings and examples. The following embodiments are only used to more clearly illustrate the technical solutions of the present invention and are not intended to limit the scope of protection of the present invention.
[0023] like Figure 1 、 Figure 2As shown, the utility model is a valveless pump overflow device, including a motor bracket 1, a motor 2, an adjustment seat 3, a circuit cover 4, an adjustment splint 5, an adjustment spring 6, a pump chamber 7, a circuit Hall 8, a light feedback signal 9, a bearing seat 10, an electromagnet 11 and a plunger 12. The motor bracket 1 is provided with a motor 2, the motor bracket 1 is provided with an adjustment seat 3, the adjustment seat 3 is provided with a circuit cover 4, the adjustment seat 3 is also provided with an adjustment splint 5, the adjustment splint 5 is provided with an adjustment spring 6, the adjustment seat 3 is provided with a pump chamber 7, and the adjustment seat 3 is connected to the motor 2. And pump chamber 7, the adjustment seat 3 is provided with a circuit Hall 8, the circuit Hall 8 is provided with a circuit cover 4, the circuit cover 4 is provided with a light-emitting feedback signal 9, the light-emitting feedback signal 9 is connected to the circuit Hall 8, the adjustment seat 3 is provided with a bearing seat 10, the bearing seat 10 is provided with an electromagnet 11, the electromagnet 11 is used to give the circuit Hall 8 a magnetic signal, the circuit Hall 8 corresponds to the electromagnet 11, the circuit Hall 8 is used to sense the magnetic signal of the electromagnet 11, the bearing seat 10 is provided with a plunger 12, the pump chamber 7 is provided in the plunger 12, and the plunger 12 moves axially. The adjustment spring 6 is used to assist in angle adjustment, the circuit cover 4 is used to protect the circuit from interference from the outer diameter, the adjustment clamp 5 is used to clamp the upper and lower parts of the adjustment seat 3, the pump chamber 7 is a cavity through which the fluid passes, and the pump chamber 7 is provided with a plug 13, which is used to block the overflow hole.
[0024] The adjusting seat 3 is provided with a motor screw 14 , which fastens the adjusting seat 3 , the motor bracket 1 and the motor 2 together, and locks the adjusting seat 3 on the motor 2 .
[0025] The clamping screw 15 is also included. The clamping screw 15 passes through the adjusting clamping plate 5 and presses the adjusting clamping plate 5 to lock the adjusting seat 3.
[0026] An adjusting screw 16 is provided in the adjusting spring 6, and an adjusting nut 17 is provided in the adjusting clamping plate 5. The adjusting screw 16 and the adjusting nut 17 are used to adjust the angle.
[0027] A spherical plain bearing 18 is provided on the bearing seat 10 , and the spherical plain bearing 18 is used to connect the bearing seat 10 and the plunger 12 .
[0028] The pump chamber 7 is locked on the bearing seat 10 by means of a pump chamber screw 19 .
[0029] The circuit cover screw 20 is also included, and the circuit cover screw 20 locks the circuit cover 4 on the adjustment seat 3.
[0030] Motor 2 rotates, driving the valveless pump. The valveless pump pumps fluid, which enters through the inlet and flows out through the outlet. Hall effect circuit 8 senses the magnetic signal from electromagnet 11, detecting the number of revolutions of the drive motor. Feedback signal 9 then illuminates to provide feedback. Depending on your needs, you can loosen clamp screw 15, adjust the angle of pump chamber 7 using adjustment screw 16, and then tighten clamp screw 15. Different angles result in different flow rates.
[0031] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.
Claims
1. A valveless pump overflow device, characterized in that: It includes a motor bracket, a motor, an adjustment seat, a circuit cover, an adjustment splint, an adjustment spring, a pump chamber, a circuit Hall, a light feedback signal, a bearing seat, an electromagnet and a plunger. The motor is provided under the motor bracket, the motor bracket is provided with an adjustment seat, the adjustment seat is provided with a circuit cover, the adjustment seat is further provided with an adjustment splint, the adjustment splint is provided with an adjustment spring, the adjustment seat is provided with a pump chamber, and the adjustment seat is connected to the motor and the pump chamber. A circuit Hall is provided on the adjustment seat, a circuit cover is provided outside the circuit Hall, a luminous feedback signal is provided on the circuit cover, and the luminous feedback signal is connected to the circuit Hall. A bearing seat is provided on the adjustment seat, an electromagnet is provided under the bearing seat, the circuit Hall corresponds to the electromagnet, a plunger is provided in the bearing seat, the pump chamber is provided in the plunger, and a plug is provided on the pump chamber.
2. A valveless pump overflow device according to claim 1, characterized in that: The adjusting seat is provided with a motor screw, and the motor screw fastens the adjusting seat, the motor bracket and the motor together.
3. A valveless pump overflow device according to claim 1, characterized in that: It also includes a clamping plate screw, which passes through the adjusting clamping plate and presses the adjusting clamping plate to lock the adjusting seat.
4. A valveless pump overflow device according to claim 1, characterized in that: An adjusting screw is arranged in the adjusting spring, and an adjusting nut is arranged in the adjusting splint.
5. A valveless pump overflow device according to claim 1, characterized in that: A spherical bearing is provided on the bearing seat.
6. A valveless pump overflow device according to claim 1, characterized in that: The pump chamber is locked on the bearing seat by pump chamber screws.
7. A valveless pump overflow device according to claim 1, characterized in that: The utility model also comprises a circuit cover screw, and the circuit cover screw is used to lock the circuit cover on the adjustment seat.