TWM485299U - Structure improvement of oil filter by-pass valve - Google Patents

Description

Improvement of the bypass valve structure of the oil filter

The present invention relates to an improved structure of a bypass valve of an oil filter, which is a two-stage assembly of a hollow tube body and a lower tube, which can be formed by common mold and directly composed of simple parts. Valves do reduce the complex cost of traditional parts.

According to the filter unit 1, the filter unit is mainly used for filtering the hydraulic oil. Referring to Fig. 1, it is a three-dimensional exploded view of the conventional oil filter. The oil filter 1 is an indispensable one for conveying the oil passage. The device, wherein the filter material 11 of the oil filter 1 is generally a filter material having a mesh, and is sleeved on the hollow tubular body 12 (as shown in FIG. 2), which can be separated by a mesh layer The number and mesh size are used for oil path filtration to protect the oil circuit and other hydraulic components, to avoid inhaling contaminated impurities, and to effectively control the cleanliness of the hydraulic system. The outer casing of the hollow pipe body 12 is covered with an upper casing 13 and a lower casing. 131, and the hollow tube body 12 containing the filter material 11 is covered inside by the upper case 13 and the lower case 131 to constitute the oil filter 1.

The general hollow tube body 12 is integrally formed. Please refer to FIG. 2 again. The length of the empty tube body 12 is long, so that the cost is high, and the bottom tube is directly formed in the hollow tube body 12. 121, and a plurality of card hooks 122 are provided on the bottom ring 121 for the card slot 124 of the hooking network tube 120. The outer edge of the hollow tube body 12 is covered with a plurality of network tubes 120, which are connected by a top ring. The 1201 is extended downward in a ring shape, and a plurality of ring-shaped rings 1202 are wound around the ring of the mesh tube 120 to make a gap between the hollow tube body 12 and the filter medium 11 (refer to FIG. 1) to prevent the filter material 11 from being attached. On the hollow pipe body 12, the oil passage is affected, so the structure of the mesh pipe 120 is complicated, and the cost of the mold is relatively high. The bottom ring 121 of the hollow tube body 12 is sleeved with a spring 125, which is fixed in the card slot 124 by the hook hook 122 to be positioned. When the oil flow rate is abnormal, the spring 125 is pressed by the internal pressure. There is a contraction that opens the valve to relieve pressure, smoothing the flow and avoiding damage to the hydraulic system due to oil blockage.

Therefore, although the integrally formed hollow tubular body 12 and the mesh tube 120 cooperate with the spring 125 to control the opening and closing of the valve, the hollow tubular body 12 and the mesh tube 120 have a complicated structure and a long length, resulting in extremely high manufacturing cost. In addition, in order to position the spring 125 on the hollow tube body 12, the hollow tube body 12 needs to be formed with the hook hook 122 and the use of the card slot 124. The overall parts are many, and the main material is mostly plastic material. The forming is not easy, so the cost of the mold is very high, so the overall economic benefits are poor.

The creator specializes in the production, sales, development and research of steam and locomotive parts. It is well known that the traditional bypass valve has high production cost and complicated assembly parts. Therefore, in order to reduce production costs and increase profit margin, it is extremely difficult. Thinking about the solution, and relying on its own professional and years of work experience, after several revisions, trials and improvements, it is the first to create this creation, which can reduce the cost of construction by more than half, which is an ideal structural improvement. .

The present invention relates to an improved structure of a bypass valve of an oil filter, in particular to a combined bypass valve structure for emergency dredging flow, which is mainly composed of an upper pipe, a lower pipe, an elastic component and a locking component. The bottom plate is composed of a hollow tube. The lower tube is provided with a groove at the middle portion for receiving the elastic member, and an oil outlet hole for connecting the lower tube is opened at the bottom portion, and a positioning sleeve is formed at the bottom end of the lower tube. The cover is provided with a filter material, and the positioning cover is provided with a hole groove, and the plurality of pressure discharge holes are provided for releasing the pressure, and then the elastic component is put into the chassis, and then the hole is placed together with the gasket. The groove is then fixed by the locking element on the lower tube to form a valve device. When the elastic element is contracted, the chassis can be opened to release the internal pressure from the pressure discharge hole to maintain the flow rate. The emergency dredging device of the oil passage; as for the upper pipe, the lower pipe is arranged, the system is also hollow tubular, and the connecting hole is opened at the top end for the oil passage to flow, and the positioning cover is formed on the middle edge of the upper pipe to cover Solid filtration ; Thus the common mode can be used on the tube and the lower tube manufactured separately formed, which is half the size of a conventional hollow tube, the manufacturing cost can be reduced, and manufacturing cost savings are integrally formed.

When assembling, the elastic element and the chassis are sequentially sleeved into the lower tube and positioned in the groove, and then the elastic element is fixed on the groove by using the locking element, and the assembly method is quite simple and convenient, and then inserted into the filter element, and then The upper tube and the lower tube are sleeved into a hollow tube body, and the spring is sleeved on The upper part of the upper tube is formed into a filter element, and the filter element is enclosed in the casing by the upper shell and the lower shell to form an oil filter.

When in use, the oil passage is connected to the oil inlet hole, so that the oil passage flows into the oil filter to the front end of the pipeline, and then flows back to the communication hole at the front end of the hollow tubular body, so that the oil passage flows into the hollow tubular body. It flows out from the oil outlet to achieve the function of filtering the oil circuit. However, when the oil filter is blocked, the hole on the lower tube can be used with the valve composed of the chassis and the elastic member to clear the flow to prevent abnormal flow. The hydraulic system is damaged. Therefore, the creation of the upper tube and the lower tube is made by common molding, which saves the high manufacturing cost of the traditional one-piece forming. In particular, the creation uses a two-stage assembly to form a hollow tube body, and can directly elasticize The component fits the chassis in the recess of the lower tube, and the fixed elastic element is fixed by the locking component buckle, so that the simple structure of the valve can be formed, and the manufacturing cost of the oil filter is more than half, which is obviously improved.

[study]

1‧‧‧ oil filter

11‧‧‧ Filter media

12‧‧‧ hollow body

120‧‧‧Webmaster

1201‧‧‧Top ring

1202‧‧‧Round ring

121‧‧‧ bottom ring

122‧‧‧Card

124‧‧‧ card slot

125‧‧ ‧ spring

13‧‧‧Upper shell

131‧‧‧lower shell

[this creation]

2‧‧‧ Oil filter

20‧‧‧ hollow body

201‧‧‧ pipeline

21‧‧‧Upper tube

211‧‧‧ positioning cover

212‧‧‧Connected holes

213‧‧‧ Ring groove

22‧‧‧Under the tube

221‧‧‧ Groove

222‧‧‧ oil hole

223‧‧‧ positioning cover

224‧‧‧ hole slot

2241‧‧‧Pressing holes

23‧‧‧Flexible components

24‧‧‧Locking components

25‧‧‧Chassis

3‧‧‧ filter

30‧‧‧ Filter media

31‧‧‧ Spring

32‧‧‧Washers

41‧‧‧Upper shell

42‧‧‧ lower case

421‧‧‧ oil hole

422‧‧‧through hole

423‧‧‧Positioning holes

Figure 1 is a perspective exploded view of a conventional oil filter.

Figure 2 is a schematic side view of a conventional hollow tubular body.

Figure 3 is an exploded view of the creation.

Figure 4 is a schematic diagram of the pressure tapping hole of the present creation.

Figure 5 is a complete assembly diagram of the hollow tube body of the present invention.

Figure 6 is a schematic view of the assembled filter cartridge of the present invention.

Figure 7 is a schematic diagram of the assembly of the present oil filter.

Figure 8 is a perspective view of the oil filter of the present invention.

Figure 9 is a schematic diagram of the bottom of the creation.

Figure 10 is a schematic diagram of the flow of the oil pipeline.

First, please refer to FIG. 3, which is an exploded perspective view of the present invention, which is mainly composed of an upper tube 21, a lower tube 22, an elastic member 23 and a locking member 24, which is hollow tubular and located. A groove 221 is defined in the middle portion for receiving the elastic member 23, and an oil outlet hole 222 communicating with the lower tube 22 is opened at the bottom portion, and a ring shape is formed at the bottom end of the lower tube 22. The positioning cover 223 is formed to cover the filter material 30 (not shown), and the positioning cover 223 is provided with a hole 224, which is provided with a plurality of pressure-reducing holes 2241 (as shown in FIG. 4). For releasing the pressure, the elastic member 23 is then placed in the chassis 25, and then placed on the hole 224, and then the elastic member 23 is fastened to the lower tube 22 by the locking member 24 to form a valve device; The upper tube 21 is disposed corresponding to the lower tube 22, and is also hollow tubular. The top surface is provided with a communication hole 212 for the oil passage to flow, and a positioning cover 211 is formed on the middle edge of the upper tube 21 to fix the filter material. 30 (not shown), and the upper tube 21 and the lower tube 22 are sleeved and combined to form a hollow tube body 20, please refer to FIG. 5 again, the creation is by placing the upper tube 21 and the lower tube The tube 22 is connected to the hollow tube body 20, so that the upper tube 21 and the lower tube 22 can be separately formed by the common mode, which can reduce the manufacturing cost by more than half, and the mold is simple and the forming is fast, and the traditional cost can be saved. High mold costs.

When assembling, please refer to FIG. 3 and as shown in FIG. 6 , the chassis 25 and the elastic member 23 are sequentially sleeved in the hole 224 of the lower tube 22 , and the top end of the elastic member 23 is inserted into the lower tube 22 . The groove 221 is fixed by the locking component 24 to form a valve device, and the assembly method is relatively simple and convenient. Then, the filter material 30 is inserted into the lower tube 22, and then the upper tube 21 is inserted through the filter material 30. It is integrated with the lower tube 22, and the filter element 30 is sleeved and fixed by the positioning cover 211 of the upper tube 21 and the positioning cover 223 of the lower tube 22 to form a filter element 3.

Next, please refer to FIG. 7 again, which is a schematic diagram of the assembly of the oil filter. The spring 31 and the washer 32 are sequentially placed on the ring groove 213 of the upper tube 21 (please refer to FIG. 6). Then, the filter element 3 is housed in the lower case 42, and the lower case 42 is covered by the upper case 41 to close and close to form an oil filter 2 (as shown in Fig. 8).

For the connection of the oil circuit, please continue to refer to the figure at the bottom of the present drawing. The bottom of the lower case 42 is provided with an oil inlet hole 421 and a through hole 422 communicating with the oil outlet hole 222, and the oil outlet hole 222. The side edge is provided with a positioning hole 423 combined with the connecting member.

When using, please refer to the figure shown in Fig. 10, which is a schematic diagram of the flow of the created oil passage. The oil passage flows from the oil inlet 421 into the oil filter 2, so that the oil passage is in the pipeline 201 in the oil filter 2. Filtration is performed, and the front end of the pipe 201 is returned to the communication hole 212. Then, the inside of the hollow pipe body 20 flows to the oil outlet hole 222, that is, the process of filtering the oil passage is completed. However, in this process, if there are too many impurities in the oil passage, it is easy to block or jam the dirt in the pipeline 201, thereby hindering the smooth flow and the flow velocity of the oil passage. Once the oil passage is blocked, the oil passage will be caused. The flow rate is slow, causing the oil filter 2 to malfunction and failing to perform its intended function, and even affecting the operation of the hydraulic system. Therefore, the normal operation of the oil filter 2 is very important. Therefore, when the flow rate is abnormal, the oil filter 2 is inside. The pressure will gradually increase, causing the elastic member 23 to contract, thereby releasing the force against the chassis 25, so that the chassis 25 no longer closes the hole 224, prompting the internal pressure to be directly released from the pressure-reducing hole 2241, thereby accelerating the hollow. The flow velocity in the tubular body 20 can be used as an emergency flow valve device to prevent the abnormality of the flow and cause damage to the oil filter 2, which is an ideal bypass valve design.

In summary, the creation of the upper and lower tubes is made by common molding, which saves the complicated and costly manufacturing costs of traditional parts, and assembles them into a hollow tube body by two stages, and then elastic elements, The chassis and the gasket are placed on the hole groove, and then directly locked and fixed by the locking component to form a valve device. The structure is simple and the assembly is simple and fast, the complicated parts of the traditional oil filter are effectively reduced, and more than half of the mold opening is saved. Cost, and with excellent economic benefits, has been in line with the new patent requirements, and patent applications are filed according to law.

21‧‧‧Upper tube

211‧‧‧ positioning cover

212‧‧‧Connected holes

22‧‧‧Under the tube

221‧‧‧ Groove

222‧‧‧ oil hole

223‧‧‧ positioning cover

224‧‧‧ hole slot

23‧‧‧Flexible components

24‧‧‧Locking components

25‧‧‧Chassis

Claims (1)

The utility model relates to an improved structure of a bypass valve of an oil filter, which is mainly composed of an upper tube, a lower tube, an elastic element and a locking element, wherein the lower tube is hollow tubular, and a groove is formed at the middle portion for accommodating the elastic element And an oil outlet hole connecting the lower tube is opened at the bottom, and a positioning sleeve is formed on the bottom end of the lower tube, and a hole groove is arranged on the positioning cover, and a plurality of pressure discharge holes are provided for opening The pressure is released, and then the elastic component is placed in the chassis and placed on the slot, and then the elastic component is fastened to the lower pipe by the locking component to form a valve device; and the upper pipe is corresponding to the lower pipe setting, The hollow tube is also provided with a communication hole at the top end surface, and a positioning cover is formed at the middle side of the upper tube, and a hollow tube body is formed by combining the upper tube and the lower tube.