Novel filter bypass valve

Abstract

The utility model belongs to the field of filters, and provides a novel filter bypass valve which comprises a supporting assembly, filter element paper and a bypass assembly. The supporting assembly comprises a framework, an upper cover and a lower cover, the upper cover and the lower cover are connected to the two ends of the framework, a pressure relief inlet is formed in the upper cover, an oil outlet is formed in the lower cover, a pressure relief channel communicating with the pressure relief inlet and the oil outlet is formed in the framework, and a hollow hole communicating with the pressure relief channel is further formed in the framework. The filter element paper is wound around the framework and is hermetically connected with the upper cover and the lower cover respectively; the bypass assembly comprises a sealing cap installed in the pressure relief channel in a sliding mode and a spring connected between the sealing cap and the framework, the elastic deformation direction of the spring is parallel to the sliding direction of the sealing cap in the pressure relief channel, and the sealing cap can tightly abut against the upper cover so that the pressure relief inlet can be closed.

Description

Technical Field

[0001] The present application belongs to the field of filters, and more specifically, relates to a novel filter bypass valve. Background Art

[0002] The bypass valve mechanism is commonly used in the design of traditional oil filters. When the oil pressure difference in the inlet and outlet channels of the oil filter exceeds the set threshold, the bypass valve will be pushed open, allowing the oil to flow directly into the main oil channel without being filtered, ensuring that the engine can still obtain basic lubrication protection when the filter fails. However, the traditional filter bypass valve structure design is complex and difficult to maintain, which undoubtedly increases the difficulty of filter production and the cost of use. Therefore, it is necessary to solve the above technical problems. Summary of the invention

[0003] The purpose of the embodiments of the present application is to provide a novel filter bypass valve to solve the technical problem of complex structure design of the filter bypass valve in the prior art.

[0004] To achieve the above purpose, the technical solution adopted in this application is: to provide a new filter bypass valve, including:

[0005] A support assembly, comprising a frame and an upper cover and a lower cover connected at both ends of the frame, wherein the upper cover forms a pressure relief inlet, the lower cover forms an oil outlet, the frame forms a pressure relief channel connecting the pressure relief inlet and the oil outlet, and the frame is further provided with a hollow hole connected to the pressure relief channel;

[0006] Filter paper, wound around the frame and sealed and connected to the upper cover and the lower cover respectively;

[0007] The bypass assembly includes a sealing cap slidably mounted in the pressure relief channel and a spring connected between the sealing cap and the frame, wherein the elastic deformation direction of the spring is parallel to the sliding direction of the sealing cap in the pressure relief channel and can press the sealing cap tightly against the upper cover to close the pressure relief inlet.

[0008] Optionally, the skeleton includes a plurality of ring beams arranged in parallel and at intervals and a plurality of longitudinal beams arranged in parallel and at intervals, the ring beams are perpendicular to the longitudinal beams and cooperate with the longitudinal beams to form the pressure relief channel and the hollow hole.

[0009] Optionally, a guide portion is protruded on the surface of the longitudinal beam close to the pressure relief channel, and the sealing cap is slidably connected to the guide portion.

[0010] Optionally, a plurality of guide portions are evenly arranged around the central axis of the pressure relief channel.

[0011] Optionally, the sealing cap forms a cavity for accommodating the spring, and the spring extends into the cavity and abuts against the bottom wall of the cavity.

[0012] Optionally, an inner ring platform coaxial with the pressure relief channel is formed inside the skeleton, and two ends of the spring abut against the sealing cap and the inner ring platform respectively.

[0013] Optionally, the edge of the upper cover used to form the pressure relief inlet is bent into the pressure relief channel to form a flange, and the sealing cap abuts against the flange.

[0014] The beneficial effect of the novel filter bypass valve provided by the present application is that: compared with the prior art, a skeleton connecting the upper cover and the lower cover is provided in the novel filter bypass valve provided by the present application, and the skeleton forms a pressure relief channel connected to the pressure relief inlet and the oil outlet and a hollow hole connected to the pressure relief channel. In this way, when the filter element paper is wound on the skeleton and sealed with the upper cover and the lower cover, the external engine oil can enter the pressure relief channel through the filter element paper and the hollow hole and be discharged from the oil outlet. When the filter element paper is blocked, the engine oil can overcome the spring force and keep the sealing cap away from the pressure relief inlet, so that it can enter the pressure relief channel from the pressure relief inlet and be discharged from the oil outlet. Since the skeleton in the present application can be used to form a pressure relief channel, can also be used as a filtering channel when the filter is working normally, and can also be used as a supporting structure of the spring to make the sealing cap close to the upper cover, the overall structure of the filter bypass valve can be significantly simplified, which is far superior to the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0016] Figure 1 A schematic diagram of the overall structure of a novel filter bypass valve provided in an embodiment of the present application;

[0017] Figure 2 A cross-sectional view of the overall structure of a novel filter bypass valve provided in an embodiment of the present application;

[0018] Figure 3 A schematic diagram of the overall structure of the support assembly and bypass assembly provided in an embodiment of the present application;

[0019] Figure 4 An exploded view of the overall structure of the support assembly and bypass assembly provided in an embodiment of the present application;

[0020] Figure 5A top view of the overall structure of the support assembly and bypass assembly provided in an embodiment of the present application;

[0021] Figure 6 For along Figure 5 The cross-sectional structure diagram along the AA line;

[0022] Figure 7 This is a schematic diagram of the overall structure of the skeleton provided in the embodiment of the present application.

[0023] Among them, the figure numerals in the figure are: 101, skeleton; 102, upper cover; 103, lower cover; 104, pressure relief inlet; 105, oil outlet; 106, pressure relief channel; 107, hollow hole; 108, filter paper; 109, sealing cap; 110, spring; 111, ring beam; 112, longitudinal beam; 113, guide part; 114, cavity; 115, inner ring platform; 116, flange. DETAILED DESCRIPTION

[0024] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0025] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0026] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0027] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0028] Please also read Figures 1 to 7Now, a novel filter bypass valve provided in the embodiment of the present application is described. The novel filter bypass valve comprises a support assembly, a filter element paper 108 and a bypass assembly. Among them:

[0029] The support assembly includes a skeleton 101 and an upper cover 102 and a lower cover 103 connected at both ends of the skeleton 101. The upper cover 102 forms a pressure relief inlet 104, the lower cover 103 forms an oil outlet 105, and the skeleton 101 forms a pressure relief channel 106 connecting the pressure relief inlet 104 and the oil outlet 105. The skeleton 101 is also provided with a hollow hole 107 connected to the pressure relief channel 106. The filter paper 108 is wound around the skeleton 101 and sealedly connected to the upper cover 102 and the lower cover 103 respectively. The bypass assembly includes a sealing cap 109 slidably mounted in the pressure relief channel 106 and a spring 110 connected between the sealing cap 109 and the skeleton 101. The elastic deformation direction of the spring 110 is parallel to the sliding direction of the sealing cap 109 in the pressure relief channel and can press the sealing cap 109 against the upper cover 102 to close the pressure relief inlet 104.

[0030] According to the above structure provided in this embodiment, a frame 101 connecting the upper cover 102 and the lower cover 103 is provided in the novel filter bypass valve provided in this embodiment, and the frame 101 forms a pressure relief channel 106 connected to the pressure relief inlet 104 and the oil outlet 105, and a hollow hole 107 connected to the pressure relief channel 106. In this way, when the filter element paper 108 is wound around the frame 101 and sealed and connected to the upper cover 102 and the lower cover 103, the external engine oil can enter the pressure relief channel 106 through the filter element paper 108 and the hollow hole 107 and be discharged from the oil outlet 105. When the filter element paper 108 is blocked, the engine oil can overcome the elastic force of the spring 110 and keep the sealing cap 109 away from the pressure relief inlet 104, so that it can enter the pressure relief channel 106 from the pressure relief inlet 104 and be discharged from the oil outlet 105. Since the skeleton 101 in this embodiment can be used to form the pressure relief channel 106, can also serve as a filtering channel when the filter is working normally, and can also serve as a supporting structure for the spring 110 and make the sealing cap 109 tightly against the upper cover 102, the overall structure of the filter bypass valve can be significantly simplified, which is far superior to the existing technology.

[0031] In another embodiment of the present application, please refer to Figures 1 to 7 The skeleton 101 includes a plurality of ring beams 111 arranged in parallel and spaced apart and a plurality of longitudinal beams 112 arranged in parallel and spaced apart. The ring beams 111 are perpendicular to the longitudinal beams 112 and cooperate with the longitudinal beams 112 to form the pressure relief channel 106 and the hollow holes 107. According to the above structure provided in this embodiment, the plurality of ring beams 111 evenly arranged in the transverse direction and the plurality of longitudinal beams 112 evenly arranged in the longitudinal direction can not only form the pressure relief channel 106 with good structural strength, but also naturally form a plurality of hollow holes 107, thereby facilitating further simplifying the overall structure of the filter bypass valve.

[0032] In another embodiment of the present application, please refer to Figures 1 to 7 A guide portion 113 is protruded on the surface of the longitudinal beam 112 near the pressure relief channel 106, and the sealing cap 109 is slidably connected to the guide portion 113. According to the above structure provided in this embodiment, the guide portion 113 slidably connected to the sealing cap 109 is formed on the surface of the longitudinal beam 112 near the pressure relief channel 106 of the skeleton 101, which can not only improve the sliding stability of the sealing cap 109, but also further simplify the overall structure of the filter bypass valve.

[0033] In another embodiment of the present application, please refer to Figures 1 to 7 , multiple guide portions 113 are evenly arranged around the central axis of the pressure relief channel 106. According to the above structure provided in this embodiment, multiple guide portions 113 can further improve the sliding stability of the sealing cap 109 relative to the frame 101. In addition, since multiple guide portions 113 can be protruded from the surface of the longitudinal beam 112, it can also achieve the technical effect of simplifying the overall structure of the filter bypass valve.

[0034] In another embodiment of the present application, please refer to Figures 1 to 7 The sealing cap 109 forms a cavity 114 for accommodating the spring 110, and the spring 110 extends into the cavity 114 and abuts against the bottom wall of the cavity 114. According to the above structure provided in this embodiment, the cavity 114 formed by the sealing cap 109 can not only be used to accommodate the spring 110 to improve the connection stability between the spring 110 and the sealing cap 109, but also reduce the weight of the sealing cap 109 and increase the guide length of the sealing cap 109 and the frame 101, thereby further improving the sliding stability of the sealing cap 109.

[0035] In another embodiment of the present application, please refer to Figures 1 to 7 The inner ring platform 115 coaxial with the pressure relief channel 106 is formed inside the skeleton 101, and the two ends of the spring 110 are respectively abutted against the sealing cap 109 and the inner ring platform 115. According to the above structure provided in this embodiment, the inner ring platform 115 formed by the skeleton 101 can be used to stably abut against the spring 110, which can not only be used to improve the deformation stability of the spring 110, but also help to further simplify the overall structure of the filter bypass valve.

[0036] In another embodiment of the present application, please refer to Figures 1 to 7The edge of the upper cover 102 used to form the pressure relief inlet 104 is bent into the pressure relief channel 106 to form a flange 116, and the sealing cap 109 abuts against the flange 116. According to the above structure provided in this embodiment, the flange 116 formed by the upper cover 102 can make it easier for the sealing cap 109 to block the pressure relief inlet 104, which can not only achieve a better pressure relief effect of the filter in this embodiment, but also help to further simplify the overall structure of the filter bypass valve.

[0037] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A new filter bypass valve, characterized in that: include: A support assembly, comprising a frame (101) and an upper cover (102) and a lower cover (103) connected to two ends of the frame (101); the upper cover (102) forms a pressure relief inlet (104); the lower cover (103) forms an oil outlet (105); the frame (101) forms a pressure relief channel (106) communicating with the pressure relief inlet (104) and the oil outlet (105); and the frame (101) is further provided with a hollow hole (107) communicating with the pressure relief channel (106); Filter paper (108) is wound around the frame (101) and is sealed and connected to the upper cover (102) and the lower cover (103) respectively; A bypass assembly comprises a sealing cap (109) slidably mounted in the pressure relief channel (106) and a spring (110) connected between the sealing cap (109) and the frame (101); the elastic deformation direction of the spring (110) is parallel to the sliding direction of the sealing cap (109) in the pressure relief channel and is capable of pressing the sealing cap (109) tightly against the upper cover (102) to close the pressure relief inlet (104).

2. The novel filter bypass valve according to claim 1, characterized in that: The frame (101) comprises a plurality of ring beams (111) arranged in parallel and at intervals, and a plurality of longitudinal beams (112) arranged in parallel and at intervals, wherein the ring beams (111) are perpendicular to the longitudinal beams (112) and cooperate with the longitudinal beams (112) to form the pressure relief channel (106) and the hollow hole (107).

3. The novel filter bypass valve according to claim 2, characterized in that: A guide portion (113) is protruded on the surface of the longitudinal beam (112) close to the pressure relief channel (106), and the sealing cap (109) is slidably connected to the guide portion (113).

4. The novel filter bypass valve as claimed in claim 3, characterized in that: A plurality of guide portions (113) are evenly arranged around the central axis of the pressure relief channel (106).

5. The novel filter bypass valve according to claim 1, characterized in that: The sealing cap (109) forms a cavity (114) for accommodating the spring (110); the spring (110) extends into the cavity (114) and abuts against a bottom wall of the cavity (114).

6. The novel filter bypass valve according to claim 1, characterized in that: An inner ring platform (115) coaxial with the pressure relief channel (106) is formed inside the skeleton (101), and two ends of the spring (110) abut against the sealing cap (109) and the inner ring platform (115) respectively.

7. The novel filter bypass valve according to claim 1, characterized in that: The upper cover (102) is used to form an edge of the pressure relief inlet (104), which is bent into the pressure relief channel (106) to form a flange (116), and the sealing cap (109) abuts against the flange (116).

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