Noise reduction heater oil pump
By using rubber sealing heads instead of steel balls in the heater oil pump, the noise problem of traditional oil pumps is solved, the noise reduction is achieved and the user experience is improved.
Patent Information
- Application Number
- CN202420461706.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-11
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2034-03-11
AI Technical Summary
When the traditional heater oil pump is working, the collision between the steel ball and the plunger sleeve causes noise, which affects the user experience.
Replace the steel ball with rubber sealing head, combined with spring and sealing head design, and sealing holes are sealed through rubber sealing head to reduce noise and reduce noise.
It effectively reduces noise generation and improves the noise level during operation of the oil pump.
Smart Images
Figure CN222162906U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of heater oil pumps, in particular to a noise-reducing heater oil pump. Background Art
[0002] The traditional oil pump mainly includes a shell, one axial end of the shell is the oil inlet end, and the other end is the oil outlet end. The fuel enters from the oil inlet end and is discharged from the oil outlet end. The shell is provided with an electromagnetic coil assembly, and the shell has a plunger that is electrically conductive by the electromagnetic coil assembly and is axially reciprocating and sliding in the plunger mounting cavity. The plunger mounting cavity is provided with a plunger sleeve for guiding the plunger to slide. The plunger sleeve is located at the end where the plunger is inserted, which is the fuel output end of the shell. A one-way valve is provided between the plunger sleeve and the fuel output end. Existing one-way valves include the following: Figure 4 The steel ball A and the spring B pressing the steel ball A are shown. After the steel ball opens the oil hole, it is driven by the spring pressure to reclose the oil hole on the plunger sleeve and collides with the plunger sleeve to produce noise. Summary of the invention
[0003] The technical problem to be solved by the present invention is to address the deficiencies of the above-mentioned prior art.
[0004] A noise reduction heater oil pump is provided to reduce noise generation and reduce noise during operation.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a noise reduction heater oil pump, comprising a shell, one axial end of the shell is an oil inlet end, and the other end is an oil outlet end, the oil inlet end is provided with an oil inlet hole, the oil outlet end is provided with an oil outlet hole, the oil inlet end is provided with an oil inlet connecting sleeve, the oil inlet connecting sleeve is provided with a first oil through hole connected with the oil inlet hole, the shell is provided with an electromagnetic mounting cavity and a plunger mounting cavity, the electromagnetic mounting cavity is sealed and isolated from the plunger mounting cavity, the electromagnetic mounting cavity is provided with an electromagnetic coil assembly, the plunger mounting cavity is provided with a plunger which is electrically conductive by the electromagnetic coil assembly and is axially reciprocatingly slidable in the plunger mounting cavity, the plunger mounting cavity is provided with a plunger sleeve for guiding the plunger to slide, the plunger includes an inlet The oil connecting sleeve is provided with a body on the side of the oil inlet end relative to the body and a plunger body connected to the body, a pressure spring is provided between the body and the plunger sleeve, the plunger sleeve is provided with a movable hole for the plunger body to be movably inserted relative to one end of the body, the plunger body is inserted in the movable hole relative to one end of the body, an oil passage cavity is provided between the plunger sleeve, the plunger body and the inner wall of the body and the plunger installation cavity, the plunger sleeve passes through the movable hole and is provided with a second oil passage hole connected to the oil passage cavity, the plunger sleeve is provided with a third oil passage hole connecting the movable hole and the oil outlet hole, a one-way valve is provided between the end of the third oil passage hole relative to the movable hole and the oil outlet hole, which allows oil to flow from the third oil passage hole to the oil outlet hole, and is characterized in that: the one-way valve includes a spring and a rubber sealing head abutting against the spring.
[0006] A further configuration of the utility model is: the rubber sealing head includes a sealing portion capable of sealing the third oil hole and a connecting portion connected to a spring, the spring sleeve is arranged on the connecting portion and abuts against the sealing portion, and the oil outlet end is provided with a spring groove for installing the spring around the oil outlet hole at one end of the oil outlet hole facing the plunger sleeve, and the spring is inserted into the spring groove.
[0007] A further configuration of the utility model is that the cross-sectional diameter of the sealing portion is larger than the cross-sectional diameter of the connecting portion.
[0008] A further configuration of the utility model is that the sealing portion can completely cover the third oil passage hole.
[0009] The utility model with the above characteristics: the rubber sealing head replaces the steel ball, so that when the one-way valve closes the third oil hole, the noise caused by the collision between the rubber sealing head and the plunger sleeve is greatly reduced, thereby reducing the generation of noise and reducing noise.
[0010] The beneficial effects of the utility model are: reducing noise generation and lowering noise during operation.
[0011] The utility model is further described in detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is a cross-sectional schematic diagram of an embodiment of the utility model.
[0013] Figure 2 A three-dimensional schematic diagram of a rubber sealing head according to an embodiment of the utility model Figure 1 .
[0014] Figure 3 A three-dimensional schematic diagram of a rubber sealing head according to an embodiment of the utility model Figure 2 .
[0015] Figure 4 It is a cross-sectional schematic diagram of a conventional heater oil pump in the background technology of an embodiment of the utility model. DETAILED DESCRIPTION
[0016] like Figure 1 —— Figure 3The noise reduction heater oil pump shown in the figure includes a shell 1, one axial end of the shell 1 is an oil inlet end 101, and the other end is an oil outlet end 102, the oil inlet end 101 is provided with an oil inlet hole 2, the oil outlet end 102 is provided with an oil outlet hole 3, the oil inlet end 101 is provided with an oil inlet connecting sleeve 4, the oil inlet connecting sleeve 4 is provided with a first oil through hole 5 connected with the oil inlet hole 2, the shell 1 is provided with an electromagnetic installation cavity 103 and a plunger installation cavity 104, the electromagnetic installation cavity 103 is sealed and isolated from the plunger installation cavity 104, the electromagnetic installation cavity 103 is provided with an electromagnetic coil assembly 6, and the plunger installation cavity 104 is provided with an electromagnetic coil assembly 6 conductively connected to the plunger installation cavity The plunger 7 is axially reciprocating and sliding in the cavity 104, and a plunger sleeve 8 is provided in the plunger installation cavity 104 for guiding the plunger 7 to slide. The plunger 7 includes a body 701 located on the side of the oil inlet connecting sleeve 4 relative to the oil inlet end 101 and a plunger body 702 connected to the body 701. A pressure spring 9 is provided between the body 701 and the plunger sleeve 8. The plunger sleeve 8 is provided with an active hole 801 for the plunger body 702 to be movably plugged in one end of the body 701. The plunger body 702 is plugged in the active hole 801 at one end of the body 701. A plunger sleeve 8, the plunger body 702, and the body 701 are provided between the inner wall of the plunger installation cavity 104. The oil passage chamber 10, the plunger sleeve 8 penetrates to the movable hole 801 and is provided with a second oil passage hole 802 connected to the oil passage chamber 10, the plunger sleeve 8 is provided with a third oil passage hole 11 connected to the movable hole 801 and the oil outlet hole 3, and a one-way valve 12 is provided between the end of the third oil passage hole 11 relative to the movable hole 801 and the oil outlet hole 3 to allow oil to flow from the third oil passage hole 11 to the oil outlet hole 3, the one-way valve 12 includes a spring 1201 and a rubber sealing head 1202 abutting against the spring 1201, the rubber sealing head 1202 includes a sealing portion 120201 capable of blocking the third oil passage hole 11 and a connecting portion 1202 connected to the spring 1201 0202, the spring 1201 is sleeved on the connecting part 120202 and abuts against the sealing part 120201, and the oil outlet end 102 is provided with a spring groove 13 for installing the spring 1201 around the oil outlet hole 3 at one end of the oil outlet hole 3 facing the plunger sleeve 8. The spring 1201 is inserted into the spring groove 13. The cross-sectional diameter of the sealing part 120201 is larger than the cross-sectional diameter of the connecting part 120202, ensuring that the spring 1201 can abut against the sealing part 120201 and apply force after being sleeved on the connecting part 120202, and the sealing part 120201 can completely cover the third oil hole 11 to ensure the sealing effect.
Claims
1. A noise reduction heater oil pump, comprising a shell, wherein one axial end of the shell is an oil inlet end, and the other end is an oil outlet end, the oil inlet end is provided with an oil inlet hole, the oil outlet end is provided with an oil outlet hole, the oil inlet end is provided with an oil inlet connecting sleeve, the oil inlet connecting sleeve is provided with a first oil through hole connected with the oil inlet hole, the shell is provided with an electromagnetic mounting cavity and a plunger mounting cavity, the electromagnetic mounting cavity is sealed and isolated from the plunger mounting cavity, the electromagnetic mounting cavity is provided with an electromagnetic coil assembly, the plunger mounting cavity is provided with a plunger which is electrically conductive by the electromagnetic coil assembly and is axially reciprocating and sliding in the plunger mounting cavity, the plunger mounting cavity is provided with a plunger sleeve for guiding the plunger to slide, the plunger includes a The oil inlet connecting sleeve is provided with a body on one side of the oil inlet end and a plunger body connected to the body, a pressing spring is provided between the body and the plunger sleeve, the plunger sleeve is provided with a movable hole for the plunger body to be movably plugged in relative to one end of the body, the plunger body is plugged into the movable hole relative to one end of the body, an oil passage cavity is provided between the plunger sleeve, the plunger body and the inner wall of the body and the plunger installation cavity, the plunger sleeve is provided with a second oil passage hole connected to the oil passage cavity through the movable hole, the plunger sleeve is provided with a third oil passage hole connected to the movable hole and the oil outlet hole, a one-way valve is provided between the end of the third oil passage hole relative to the movable hole and the oil outlet hole to allow oil to flow from the third oil passage hole to the oil outlet hole, and the characteristics are: The one-way valve comprises a spring and a rubber sealing head abutting against the spring.
2. A noise reduction heater oil pump according to claim 1, characterized in that: The rubber sealing head includes a sealing portion capable of sealing the third oil hole and a connecting portion connected to a spring, the spring sleeve is arranged on the connecting portion and abuts against the sealing portion, and the oil outlet end is provided with a spring groove for installing the spring around the oil outlet hole at one end of the oil outlet hole facing the plunger sleeve, and the spring is inserted into the spring groove.
3. A noise reduction heater oil pump according to claim 2, characterized in that: The cross-sectional diameter of the sealing portion is greater than the cross-sectional diameter of the connecting portion.
4. A noise reduction heater oil pump according to claim 3, characterized in that: The sealing portion can completely cover the third oil passage hole.