Oil filter capable of reducing impurity blockage

Abstract

The utility model discloses an oil filter capable of reducing impurity blockage, and relates to the technical field of filtering structures. The filter comprises a filter body and a top cover, a threaded pipe is welded to the bottom of the filter body in a penetrating mode, the top cover is clamped and fixed to the top of the filter body, a connecting pipe is welded to the top of the top cover in a penetrating mode, a sleeve is clamped to the bottom of the peripheral face of the connecting pipe in a sliding mode, a scraper is welded to the peripheral face of the sleeve, and a sealing block is clamped and fixed to the bottom of the sleeve. By arranging the filter main body and the top cover, the oil filter solves the problems that the oil filter cannot automatically clean impurities filtered in the shell, the energy consumption of an automobile is increased, the cost and the maintenance expenditure of the automobile are increased by arranging an external structure to suck or backwash the impurities, the filtering efficiency of a filter element to the impurities is limited, and the service life of the automobile is prolonged. The filter element area of the oil filter is limited, and the filter element is easy to block when the lubricating oil is filtered.

Description

Technical Field

[0001] The utility model belongs to the technical field of filtering structures, in particular to an oil filter capable of reducing clogging by impurities. Background Art

[0002] The oil filter is used to remove impurities such as dust, metal particles, carbon deposits and soot particles from the engine oil to protect the engine. The oil filter has strong filtering ability, low flow resistance and long service life. The oil filter consists of a shell, spring, filter paper, center tube, upper and lower end covers, base plate, sealing ring, bypass valve and check valve. When the car engine is running, the oil pump carries impurities into the oil filter through the oil inlet. Under the action of oil pressure, the oil passes through the filter paper and enters the center tube, while the impurities remain on the filter paper, providing clean oil to the moving parts, playing a role in lubrication, cooling and cleaning, and extending the life of parts. However, it still has the following disadvantages in actual use:

[0003] Utility model announcement number CN202215321U discloses an oil filter. The filter element includes an outer filter element and an inner filter element disposed within the outer filter element. An oil filter cavity is formed between the inner and outer filter elements, and the oil inlet is connected to the oil filter cavity. When the oil filter is in use, impurities in the oil are often retained in the housing, making it difficult to automatically clean. Using an external structure to extract or backwash the impurities increases the vehicle's energy consumption, increasing the vehicle's cost and maintenance expenses.

[0004] When the oil filter is actually used, in order to ensure the flow rate of the lubricating oil, the pores of the filter element are often not too small, but this leads to limited efficiency of the oil filter in filtering impurities. In addition, due to the small and scattered remaining space in the car, the volume of the oil filter cannot be too large, which further leads to limited filter element area that can be set in the oil filter, and the filter element is prone to clogging when filtering the lubricating oil. Utility Model Content

[0005] The purpose of the utility model is to provide an oil filter that reduces clogging of impurities. Through the filter housing and the top cover, the problem of the oil filter being unable to automatically clean the impurities filtered out of the housing is solved. The suction or backwashing of impurities by setting an external structure will increase the energy consumption of the car, increase the cost and maintenance expenses of the car, the filter element has limited filtering efficiency for impurities, and the filter element area that can be set up in the oil filter is limited, and the filter element is prone to clogging when filtering the lubricating oil.

[0006] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0007] The utility model is an oil filter for reducing impurity clogging, comprising a filter body and a top cover, wherein a threaded tube is welded through the bottom of the filter body, the top cover is fixedly connected to the top of the filter body, a connecting pipe is welded through the top of the top cover, a sleeve is slidably connected to the bottom of the outer peripheral surface of the connecting pipe, a scraper is welded to the outer peripheral surface of the sleeve, and a sealing block is fixedly connected to the bottom of the sleeve;

[0008] The connecting pipe can connect one oil filter to another oil filter or to an oil pump, and the threaded pipe can connect one oil filter to another oil filter or to a device requiring lubrication, so that lubricating oil can pass through multiple oil filters containing microporous filter elements of different sizes, thereby ensuring filtration efficiency. Impurities can be diverted through multiple oil filters to avoid excessive impurities in a single oil filter. Multiple oil filters can be connected through hoses to fully utilize the remaining space in the vehicle. When the oil filter is working, lubricating oil enters the filter body through the connecting pipe. The pressure of the liquid causes the sleeve to move downward and close the discharge pipe through the sealing block to prevent the lubricating oil from being discharged through the discharge pipe. At the same time, the force generated by the flow of lubricating oil drives the scraper to rotate, cleaning the surface of the filter element and preventing the filter element from being blocked. When the engine stops, the sleeve is reset to disengage the sealing block from the discharge pipe, and impurities retained in the filter element can be quickly discharged through the discharge pipe. The structure is simple and the cost is low.

[0009] Furthermore, a filter tank is provided in the filter body, the threaded pipe is connected to the filter tank, a filter element is fixed to the top of the filter tank, a slag discharge pipe is connected to the bottom of the filter element, and the bottom of the slag discharge pipe is connected to the outer peripheral surface of the filter body;

[0010] The filter element can filter the lubricating oil entering the filter body to prevent impurities in the lubricating oil from damaging components. After the engine stops, the impurities in the filter element can be discharged through the slag discharge pipe under the action of gravity.

[0011] Furthermore, a thread groove is formed on the top of the outer circumference of the connecting pipe, and the thread groove is located on the top of the top cover, and a threaded pipe of the filter body is screwed and fixed to the outer circumference of the thread groove of a connecting pipe;

[0012] The connecting pipe can connect one oil filter to another oil filter, or to an oil pump. The threaded pipe can connect one oil filter to another oil filter, or to a device that needs lubrication, so that the lubricating oil can pass through multiple oil filters containing microporous filter elements of different sizes to ensure filtration efficiency. Impurities can be diverted through multiple oil filters to avoid excessive impurities in a single oil filter. Multiple oil filters can be connected through hoses to make full use of the remaining space in the car.

[0013] Furthermore, a return spring is rotatably engaged with the bottom edge of the connecting tube, a slide groove is provided on the top of the sleeve, a through hole is provided on the top of the outer peripheral surface of the sleeve, the through hole is connected to the slide groove, the slide groove is connected to the connecting tube, and the bottom of the return spring is engaged with the bottom end of the slide groove;

[0014] When the lubricating oil enters the connecting pipe, the hydraulic pressure drives the sleeve to move downward, so that the sealing block is inserted into the slag discharge pipe to prevent the lubricating oil from being discharged through the slag discharge pipe. When the engine stops, the sleeve is reset to make the sealing block separate from the slag discharge pipe, and the impurities retained in the filter element can be quickly discharged through the slag discharge pipe. The structure is simple and the cost is low.

[0015] Furthermore, the scraper is attached to the inner wall of the filter element, and the bottom of the sealing block is plugged into the top of the slag discharge pipe;

[0016] The force generated by the flow of lubricating oil drives the scraper to rotate, cleaning the surface of the filter element to avoid clogging of the filter element and ensure the filtering efficiency of the oil filter for the lubricating oil.

[0017] The utility model has the following beneficial effects:

[0018] The utility model solves the problem that impurities in the engine oil are often retained in the shell body and difficult to be automatically cleaned when the oil filter is in use, and the problem that the impurities are sucked or backwashed by setting an external structure will increase the energy consumption of the car and increase the cost and maintenance expenses of the car by providing a filter body and a top cover. When the lubricating oil enters the connecting pipe, the hydraulic pressure drives the sleeve to move downward, so that the sealing block is inserted into the slag discharge pipe to prevent the lubricating oil from being discharged through the slag discharge pipe 103. When the engine stops, the sleeve is reset by the pulling force of the reset spring, so that the sealing block is separated from the slag discharge pipe, and the impurities retained in the filter element are quickly discharged through the slag discharge pipe under the action of gravity. The utility model has a simple structure and low cost.

[0019] The utility model solves the problem that, in order to ensure the flow rate of lubricating oil, the pores of the filter element cannot be too small during actual use, by providing the filter body and the top cover, but the oil filter has limited filtering efficiency for impurities, and because the remaining space in the car is small and scattered, the volume of the oil filter cannot be too large, which further leads to the limited area of ​​the filter element that can be set in the oil filter, and the filter element is prone to clogging when filtering the lubricating oil. When installing the oil filter, according to the remaining space in the car, it is selected to connect multiple oil filters by directly screwing the connecting pipe and the threaded pipe, or to take the connecting hose and connect the connecting pipes and the threaded pipes of the two oil filters, so that when the engine is started, the lubricating oil passes through multiple oil filters containing microporous filter elements of different sizes, and the impurities can be diverted by the multiple oil filters, avoiding excessive impurities in a single oil filter and ensuring filtering efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a structural effect diagram of the utility model;

[0021] Figure 2 It is a structural diagram of the utility model;

[0022] Figure 3 This is a cross-sectional view of the filter body of the utility model;

[0023] Figure 4 It is a structural diagram of the top cover of the utility model.

[0024] Reference numerals:

[0025] 1. Filter body; 101. Filter element; 102. Filter tank; 103. Slag discharge pipe; 104. Threaded pipe; 2. Top cover; 201. Connecting pipe; 202. Sleeve; 203. Threaded groove; 204. Return spring; 205. Slide; 206. Through hole; 207. Scraper; 208. Sealing block. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0027] See also Figure 1-4 As shown, the utility model is an oil filter for reducing impurity clogging, comprising a filter body 1 and a top cover 2. A threaded tube 104 is welded through the bottom of the filter body 1, and the top cover 2 is fixedly secured to the top of the filter body 1. A connecting tube 201 is welded through the top of the top cover 2, and a sleeve 202 is slidably secured to the bottom of the outer circumference of the connecting tube 201. A scraper 207 is welded to the outer circumference of the sleeve 202, and a sealing block 208 is fixedly secured to the bottom of the sleeve 202.

[0028] When installing the oil filter, depending on the remaining space in the car, you can choose to connect multiple oil filters by directly screwing the connecting pipe 201 and the threaded pipe 104, or take the connecting hose and connect the connecting pipes 201 and the threaded pipe 104 of two oil filters, and take the connecting hose to connect the slag discharge pipe 103 to the waste slag collection device. When the engine is started, the lubricating oil enters the filter body 1 through the connecting pipe 201. The pressure of the liquid causes the sleeve 202 to move downward, driving the sealing block 208 to move downward to close the slag discharge pipe 103. To prevent the lubricating oil from being discharged through the discharge pipe 103, the lubricating oil enters the filter element 101 through the through hole 206 and is filtered by the filter element 101. At the same time, the force generated by the flow of the lubricating oil drives the scraper 207 to rotate, cleaning the surface of the filter element 101 to avoid clogging of the filter element 101. The filtered lubricating oil enters the next oil filter through the threaded tube 104 for filtration. When the engine stops, the sleeve 202 is reset to disengage the sealing block 208 from the discharge pipe 103, and the impurities retained in the filter element 101 are quickly discharged through the discharge pipe 103 under the action of gravity.

[0029] Among them Figure 2-3 As shown, a filter tank 102 is provided in the filter body 1, a threaded pipe 104 is connected to the filter tank 102, a filter element 101 is fixed to the top of the filter tank 102, a slag discharge pipe 103 is connected to the bottom of the filter element 101, and the bottom of the slag discharge pipe 103 is connected to the outer peripheral surface of the filter body 1;

[0030] The lubricating oil enters the filter element 101 through the connecting pipe 201, and the lubricating oil entering the filter body 1 is filtered by the filter element 101 to prevent impurities in the lubricating oil from damaging the components. After the engine stops, the impurities in the filter element 101 are discharged through the slag discharge pipe 103 under the action of gravity.

[0031] Among them Figure 1-3 As shown, a thread groove 203 is provided on the top of the outer circumference of the connecting pipe 201. The thread groove 203 is located on the top of the top cover 2. The threaded pipe 104 of the filter body 1 is screwed and fixed to the outer circumference of the thread groove 203 of the connecting pipe 201.

[0032] When installing the oil filter, depending on the remaining space in the car, you can choose to connect multiple oil filters by directly screwing the connecting pipe 201 and the threaded pipe 104, or take the connecting hose, connect the connecting pipes 201 and the threaded pipe 104 of two oil filters, and connect the oil filter at the end to the oil pump and the device that needs lubrication, and take the connecting hose to connect the slag discharge pipe 103 to the waste slag collection device.

[0033] Among them Figure 2 、 4As shown, a return spring 204 is rotatably connected to the bottom edge of the connecting tube 201, a chute 205 is provided at the top of the sleeve 202, a through hole 206 is provided at the top of the outer peripheral surface of the sleeve 202, the through hole 206 is connected to the inside of the chute 205, the chute 205 is connected to the inside of the connecting tube 201, the bottom of the return spring 204 is connected to the bottom end of the chute 205, the scraper 207 is attached to the inner wall of the filter element 101, and the bottom of the sealing block 208 is inserted into the top of the slag discharge pipe 103;

[0034] When the lubricating oil enters the connecting pipe 201, the lubricating oil further enters the slide groove 205, and the hydraulic pressure drives the sleeve 202 to move downward, further opening the through hole 206, so that the lubricating oil enters the filter element 101 through the through hole 206 for filtration. At the same time, the force generated by the flow of the lubricating oil drives the scraper 207 to rotate, cleaning the surface of the filter element 101 to avoid clogging of the filter element 101. After the engine stops, the tension of the return spring 204 drives the sleeve 202 to move upward and reset.

[0035] The specific working principle of the present invention is as follows: when installing the oil filter, according to the remaining space in the car, choose to directly screw the connecting pipe 201 and the threaded pipe 104 to connect multiple oil filters, or take the connecting hose, connect the connecting pipes 201 of two oil filters to the threaded pipe 104, and connect the oil filters at the end to the oil pump and the device that needs lubrication, take the connecting hose to connect the slag discharge pipe 103 to the waste slag collection device, when the engine is started, the lubricating oil enters the connecting pipe 201, and the lubricating oil further enters the chute 205, and the hydraulic pressure drives the sleeve 20 2 moves downward, so that the sealing block 208 is inserted into the slag discharge pipe 103, and the through hole 206 is further opened, so that the lubricating oil passes through the through hole 206 and enters the filter element 101 for filtration. At the same time, the force generated by the flow of lubricating oil drives the scraper 207 to rotate, cleaning the surface of the filter element 101 to prevent the filter element 101 from being blocked. The filtered lubricating oil enters the next oil filter through the threaded tube 104 for further filtration. After the engine stops, the tension of the return spring 204 drives the sleeve 202 to move upward and reset, so that the sealing block 208 is separated from the slag discharge pipe 103, and the impurities in the filter element 101 are discharged through the slag discharge pipe 103 under the action of gravity.

[0036] The above are only preferred embodiments of the present invention and do not limit the present invention. Any modification to the technical solutions described in the aforementioned embodiments, any equivalent replacement of some of the technical features therein, and any modification, equivalent replacement, and improvement made are within the scope of protection of the present invention.

Claims

1. An oil filter for reducing clogging by impurities, comprising a filter body (1) and a top cover (2), characterized in that: A threaded tube (104) is welded through the bottom of the filter body (1), a top cover (2) is fixedly connected to the top of the filter body (1), a connecting tube (201) is welded through the top of the top cover (2), a sleeve (202) is slidably connected to the bottom of the outer peripheral surface of the connecting tube (201), a scraper (207) is welded to the outer peripheral surface of the sleeve (202), and a sealing block (208) is fixedly connected to the bottom of the sleeve (202).

2. The oil filter for reducing impurity clogging according to claim 1, characterized in that: A filter tank (102) is provided in the filter body (1), the threaded tube (104) and the filter tank (102) are connected through the threaded tube (104), a filter element (101) is fixedly connected to the top of the filter tank (102), a slag discharge pipe (103) is connected through the bottom of the filter element (101), and the bottom of the slag discharge pipe (103) is connected through the threaded tube (104) to the outer peripheral surface of the filter body (1).

3. The oil filter for reducing impurity clogging according to claim 1, characterized in that: A threaded groove (203) is provided at the top of the outer peripheral surface of the connecting pipe (201), and the threaded groove (203) is located at the top of the top cover (2). A threaded pipe (104) of the filter body (1) is screwed and fixed to the outer peripheral surface of the threaded groove (203) of a connecting pipe (201).

4. The oil filter for reducing impurity clogging according to claim 1, characterized in that: A return spring (204) is rotatably clamped at the bottom edge of the connecting tube (201); a slide groove (205) is provided at the top of the sleeve (202); a through hole (206) is provided at the top of the outer peripheral surface of the sleeve (202); the through hole (206) and the slide groove (205) are connected through and through; the slide groove (205) and the connecting tube (201) are connected through and through; and the bottom of the return spring (204) is clamped at the bottom end of the slide groove (205).

5. The oil filter for reducing impurity clogging according to claim 2, characterized in that: The scraper (207) is attached to the inner wall of the filter element (101), and the bottom of the sealing block (208) is inserted into the top of the slag discharge pipe (103).

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