Filter seat, fuel filter device and engine system

Abstract

The utility model relates to the technical field of engine maintenance, and discloses a filter seat, a fuel filter device and an engine system.The filter seat comprises a filter seat body and an adjusting mechanism, the filter seat body is provided with an oil inlet, an oil outlet, a first oil passing hole and a second oil passing hole, the first oil passing hole is connected with a first mounting hole, and the second oil passing hole is connected with a second mounting hole. The second oil passing hole is connected with a second mounting hole; the path of the first main oil way sequentially comprises an oil inlet hole, a first oil passing hole and an oil outlet hole. The path of the second main oil way sequentially comprises an oil inlet hole, a second oil passing hole and an oil outlet hole. When the adjusting mechanism is in the first state, the first main oil way is connected, and the second main oil way is disconnected. When the adjusting mechanism is in a second state, the second main oil way is connected, and the first main oil way is disconnected; and when the adjusting mechanism is in the third state, the first main oil way communicates with the second main oil way. The filter element is replaced under the condition that the engine does not stop by switching the state of the adjusting mechanism, so that the requirement of continuous work of the engine is met.

Description

Technical Field

[0001] The utility model relates to the technical field of engine maintenance, and particularly relates to a filter seat, a fuel filter device and an engine system. Background Art

[0002] Currently, engines are generally equipped with fuel filters, and the function of the fuel filter is to remove solid particles in the engine oil to maintain the lubricating ability of the engine oil.

[0003] However, since the filter is frequently clogged, the filter element needs to be frequently replaced for maintenance; when some engines need to work continuously (such as a marine engine on an ocean voyage), if the engine is shut down and then the filter element is replaced, the working requirements of the engine cannot be met.

[0004] Therefore, how to design a fuel filter that can replace the filter element without shutting down the engine to meet the continuous working requirements of the engine has become an urgent technical problem in this field. Summary of the Utility Model

[0005] The purpose of the utility model is to at least solve the problem of how to design a fuel filter that can replace the filter element without shutting down the engine to meet the continuous working requirements of the engine, and this purpose is achieved by the following technical solutions:

[0006] In a first aspect, the utility model provides a filter seat. The interior of the filter seat has a first main oil passage and a second main oil passage. The filter seat includes: a filter seat body, the top end of the filter seat body has an oil inlet hole and an oil outlet hole, the bottom end of the filter seat body has a first oil passing hole and a second oil passing hole, the first oil passing hole is communicated with a first mounting hole for mounting a first filter element, and the second oil passing hole is communicated with a second mounting hole for mounting a second filter element; the path of the first main oil passage sequentially includes the oil inlet hole, the first oil passing hole and the oil outlet hole; the path of the second main oil passage sequentially includes the oil inlet hole, the second oil passing hole and the oil outlet hole; and an adjusting mechanism for adjusting the on-off of the first main oil passage and the on-off of the second main oil passage, and the adjusting mechanism can be switched between a first state, a second state and a third state; when the adjusting mechanism is in the first state, the first main oil passage is communicated, and the second main oil passage is disconnected; when the adjusting mechanism is in the second state, the second main oil passage is communicated, and the first main oil passage is disconnected; when the adjusting mechanism is in the third state, both the first main oil passage and the second main oil passage are communicated.

[0007] When assembling this filter seat, the first filter element is installed in the first mounting hole, and the second filter element is installed in the second mounting hole. During operation, first adjust the adjustment mechanism to the third state to enable both filter elements to work properly. When the first filter element needs to be replaced, switch the adjustment mechanism to the second state, which disconnects the first main oil circuit to facilitate the replacement of the first filter element. At the same time, the second main oil circuit is connected, and the operation of the second filter element will not be affected. When the second filter element needs to be replaced, switch the adjustment mechanism to the first state, which disconnects the second main oil circuit to facilitate the replacement of the second filter element. At the same time, the first main oil circuit is connected, and the operation of the first filter element will not be affected. Therefore, through the arrangement of the two filter elements and the adjustment mechanism, this filter seat can achieve the replacement of the filter element without shutting down the engine, thus meeting the requirement of continuous operation of the engine.

[0008] In some embodiments of the present invention, the filter seat body includes a first filter seat hole, a second filter seat hole, a third filter seat hole, a fourth filter seat hole, a fifth filter seat hole, a sixth filter seat hole, and a seventh filter seat hole. The first filter seat hole, the second filter seat hole, and the oil inlet hole are interconnected. The fifth filter seat hole is connected to the oil outlet hole. The fourth filter seat hole is connected to the second mounting hole. The third filter seat hole is connected to the first mounting hole. The sixth filter seat hole is connected to the first oil passage hole. The seventh filter seat hole is connected to the second oil passage hole. When the adjustment mechanism is in the third state, the path of the first main oil circuit sequentially includes: the oil inlet hole, the second filter seat hole, the sixth filter seat hole, the first oil passage hole, the first mounting hole, the third filter seat hole, the fifth filter seat hole, and the oil outlet hole. When the adjustment mechanism is in the third state, the path of the second main oil circuit sequentially includes: the oil inlet hole, the first filter seat hole, the seventh filter seat hole, the second oil passage hole, the second mounting hole, the fourth filter seat hole, the fifth filter seat hole, and the oil outlet hole.

[0009] In some embodiments of the present utility model, the filter base body has a cavity, and the first filter base hole, the second filter base hole, the third filter base hole, and the fourth filter base hole are all communicated with the cavity; the adjusting mechanism includes a regulating valve, the regulating valve has a valve core body for blocking the cavity, the valve core body is provided with a first valve core hole corresponding to the first filter base hole, a second valve core hole corresponding to the second filter base hole, a third valve core hole corresponding to the third filter base hole, and a fourth valve core hole corresponding to the fourth filter base hole, and the valve core body can rotate around the axis of the cavity to realize switching between a first state, a second state, and a third state; the filter base also includes a filter base cover plate, and the filter base cover plate is used to prevent the valve core body from moving out of the cavity; the filter base cover plate is provided with a first cover plate hole corresponding to the first valve core hole, a second cover plate hole corresponding to the second valve core hole, a third cover plate hole corresponding to the third valve core hole, a fourth cover plate hole corresponding to the fourth valve core hole, a fifth cover plate hole corresponding to the fifth filter base hole, a sixth cover plate hole corresponding to the sixth filter base hole, and a seventh cover plate hole corresponding to the seventh filter base hole; the third cover plate hole, the fourth cover plate hole, and the fifth cover plate hole are communicated with each other, the second cover plate hole and the sixth cover plate hole are communicated, and the first cover plate hole and the seventh cover plate hole are communicated; when the adjusting mechanism is in the first state, the path of the first main oil circuit sequentially includes: an oil inlet hole, the first valve core hole, the second filter base hole, the sixth filter base hole, the first oil passing hole, the first installation hole, the fourth valve core hole, the third filter base hole, the fifth filter base hole, and an oil outlet hole; when the adjusting mechanism is in the second state, the path of the second main oil circuit sequentially includes: an oil inlet hole, the second valve core hole, the first filter base hole, the seventh filter base hole, the second oil passing hole, the second installation hole, the third valve core hole, the fourth filter base hole, the fifth filter base hole, and an oil outlet hole.

[0010] In some embodiments of the present utility model, the regulating valve further includes a rotating shaft and a handle, the cover plate is provided with a through hole, the extending direction of the rotating shaft is the same as the axis direction of the cavity, the rotating shaft passes through the through hole, one end of the rotating shaft is connected to the valve core body, and the other end of the rotating shaft is connected to the handle.

[0011] In some embodiments of the present utility model, four cavity sealing rings are provided between the cavity and the valve core body; one cavity sealing ring is provided at the edge of each of the first filter base hole, the second filter base hole, the third filter base hole, and the fourth filter base hole.

[0012] In some embodiments of the present utility model, four valve core sealing rings are provided between the valve core body and the filter base cover plate; one valve core sealing ring is provided at the edge of each of the first valve core hole, the second valve core hole, the third valve core hole, and the fourth valve core hole.

[0013] In some embodiments of the present utility model, a filter base sealing ring is provided between the filter base body and the filter base cover plate, and the filter base sealing ring is arranged on the side wall of the filter base body.

[0014] In some embodiments of the present utility model, the regulating valve further includes a locking assembly, and the locking assembly is used to limit the movement of the handle relative to the filter base cover plate.

[0015] In a second aspect, the present utility model provides a fuel filter device, which includes a first filter element, a second filter element, and any one of the above-mentioned filter seats. The first filter element is installed in a first installation hole, and the second filter element is installed in a second installation hole.

[0016] In a third aspect, the present utility model provides an engine system, which includes an engine body and the above-mentioned fuel filter device.

[0017] The above description is only an overview of the technical solution of the present application. In order to be able to understand the technical means of the present application more clearly, it can be implemented according to the content of the specification. And in order to make the above and other purposes, features, and advantages of the present application more obvious and understandable, the following specifically exemplifies the specific implementation manners of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] By reading the detailed description of the preferred embodiments below, various other advantages and benefits will become clear to those of ordinary skill in the art. The drawings are only for the purpose of showing the preferred embodiments and are not considered to be a limitation of the present utility model. Moreover, throughout the drawings, the same reference numerals are used to represent the same components. In the drawings:

[0019] Figure 1 is an exploded view of the structure of the filter seat provided by an embodiment of the present utility model;

[0020] Figure 2 is a schematic diagram of the positional relationship between the filter seat body and the adjusting mechanism when the adjusting mechanism is in the first state for the filter seat provided by an embodiment of the present utility model;

[0021] Figure 3 is a schematic diagram of the positional relationship between the adjusting mechanism and the filter seat cover when the adjusting mechanism is in the first state for the filter seat provided by an embodiment of the present utility model;

[0022] Figure 4 is a schematic diagram of the positional relationship between the filter seat body and the adjusting mechanism when the adjusting mechanism is in the second state for the filter seat provided by an embodiment of the present utility model;

[0023] Figure 5 is a schematic diagram of the positional relationship between the adjusting mechanism and the filter seat cover when the adjusting mechanism is in the second state for the filter seat provided by an embodiment of the present utility model;

[0024] Figure 6 is a schematic diagram of the structure of the filter seat cover and the adjusting mechanism in the filter seat provided by an embodiment of the present utility model;

[0025] Figure 7 An exploded view of the structure of the fuel filter device provided by an embodiment of the present utility model.

[0026] The reference numerals are as follows:

[0027] 100, filter seat;

[0028] 1000, filter seat body; 1001, first filter seat hole; 1002, second filter seat hole; 1003, third filter seat hole; 1004, fourth filter seat hole; 1005, fifth filter seat hole; 1006, sixth filter seat hole; 1007, seventh filter seat hole; 1008, first oil passage hole; 1009, second oil passage hole; 1010, first mounting hole; 1011, second mounting hole; 1012, oil inlet hole; 1013, oil outlet hole; 1100, cavity;

[0029] 2000, spool body; 2001, first spool hole; 2002, second spool hole; 2003, third spool hole; 2004, fourth spool hole;

[0030] 3000, filter seat cover; 3001, first cover hole; 3002, second cover hole; 3003, third cover hole; 3004, fourth cover hole; 3005, fifth cover hole; 3006, sixth cover hole; 3007, seventh cover hole; 3008, through hole;

[0031] 4000, rotating shaft;

[0032] 5000, handle;

[0033] 6001, cavity sealing ring; 6002, spool sealing ring; 6003, filter seat sealing ring;

[0034] 7000, locking assembly; 7001, limiting slideway; 7002, locking pin;

[0035] 10, fuel filter device;

[0036] 200, first filter element; 300, second filter element. Detailed implementation manners

[0037] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided so that the present disclosure can be more thoroughly understood and the scope of the present disclosure can be fully conveyed to those skilled in the art.

[0038] It should be understood that the terms used herein are for the purpose of describing particular example embodiments only and are not intended to be limiting. Unless the context clearly dictates otherwise, the singular forms "a", "an", and "the" as used herein may also include the plural forms. The terms "comprising", "including", "containing", and "having" are inclusive and thus specify the presence of the stated features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring them to be performed in the particular order described or illustrated, unless an execution order is explicitly stated. It should also be understood that additional or alternative steps may be used.

[0039] Although the terms first, second, third, etc. may be used herein to describe multiple elements, components, regions, layers, and / or sections, these elements, components, regions, layers, and / or sections should not be limited by these terms. These terms may be used only to distinguish one element, component, region, layer, or section from another. Unless the context clearly dictates otherwise, terms such as "first", "second", and other numerical terms when used herein do not imply an order or sequence. Thus, the first element, component, region, layer, or section discussed below may be referred to as the second element, component, region, layer, or section without departing from the teachings of the example embodiments.

[0040] For ease of description, spatial relative relationship terms may be used herein to describe the relationship of one element or feature shown in the figures to another element or feature, such as "inner", "outer", "inside", "outside", "below", "beneath", "above", "over", etc. Such spatial relative relationship terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is flipped, an element described as "below" or "beneath" another element or feature will then be oriented "above" or "over" the other element or feature. Thus, the example term "below" can include both an upper and a lower orientation. The device may be otherwise oriented (rotated 90 degrees or in other directions) and the spatial relative relationship descriptors used herein are to be interpreted accordingly.

[0041] Figure 1 The structural explosion diagram of the filter seat provided for the embodiment of the present utility model is as Figure 1As shown in the figure, an embodiment of the present utility model provides a filter seat 100. The interior of the filter seat 100 has a first main oil passage and a second main oil passage. The filter seat 100 includes: a filter seat body 1000. The top end of the filter seat body 1000 has an oil inlet hole 1012 and an oil outlet hole 1013. The bottom end of the filter seat body 1000 has a first oil passing hole 1008 and a second oil passing hole 1009. The first oil passing hole 1008 is communicated with a first mounting hole 1010 for mounting a first filter element 200. The second oil passing hole 1009 is communicated with a second mounting hole 1011 for mounting a second filter element 300. The path of the first main oil passage sequentially includes the oil inlet hole 1012, the first oil passing hole 1008, and the oil outlet hole 1013. The path of the second main oil passage sequentially includes the oil inlet hole 1012, the second oil passing hole 1009, and the oil outlet hole 1013. And an adjusting mechanism for adjusting the on-off of the first main oil passage and the on-off of the second main oil passage. The adjusting mechanism can switch between a first state, a second state, and a third state. When the adjusting mechanism is in the first state, the first main oil passage is connected and the second main oil passage is disconnected. When the adjusting mechanism is in the second state, the second main oil passage is connected and the first main oil passage is disconnected. When the adjusting mechanism is in the third state, both the first main oil passage and the second main oil passage are connected.

[0042] In this embodiment, when assembling this filter seat 100, the first filter element 200 is installed in the first mounting hole 1010, and the second filter element 300 is installed in the second mounting hole 1011. During operation, first, the adjusting mechanism is adjusted to the third state to enable both filter elements to work properly. When the first filter element 200 needs to be replaced, the adjusting mechanism is switched to the second state, that is, the first main oil passage is disconnected to facilitate the replacement of the first filter element 200. At the same time, the second main oil passage is connected and the work of the second filter element 300 will not be affected. When the second filter element 300 needs to be replaced, the adjusting mechanism is switched to the first state, that is, the second main oil passage is disconnected to facilitate the replacement of the second filter element 300. At the same time, the first main oil passage is connected and the work of the first filter element 200 will not be affected.

[0043] Therefore, this filter seat 100, through the setting of two filter elements and the adjusting mechanism, can realize the replacement of the filter elements without the engine shutting down, thus meeting the requirement of the engine for continuous operation.

[0044] Figure 2 It is a schematic diagram of the positional relationship between the filter seat body and the adjusting mechanism when the adjusting mechanism of the filter seat provided by the embodiment of the present utility model is in the first state; Figure 3 It is a schematic diagram of the positional relationship between the adjusting mechanism and the filter seat cover plate when the adjusting mechanism of the filter seat provided by the embodiment of the present utility model is in the first state; Figure 4 It is a schematic diagram of the positional relationship between the filter seat body and the adjusting mechanism when the adjusting mechanism of the filter seat provided by the embodiment of the present utility model is in the second state; Figure 5Schematic diagram of the positional relationship between the adjusting mechanism and the filter seat cover when the adjusting mechanism is in the second state provided by the embodiment of the present utility model; refer to Figures 1 to 5 , according to an optional embodiment of the present utility model, the filter seat body 1000 includes a first filter seat hole 1001, a second filter seat hole 1002, a third filter seat hole 1003, a fourth filter seat hole 1004, a fifth filter seat hole 1005, a sixth filter seat hole 1006, and a seventh filter seat hole 1007; the first filter seat hole 1001, the second filter seat hole 1002, and the oil inlet hole 1012 are in communication with each other, the fifth filter seat hole 1005 is in communication with the oil outlet hole 1013, the fourth filter seat hole 1004 is in communication with the second mounting hole 1011, the third filter seat hole 1003 is in communication with the first mounting hole 1010, the sixth filter seat hole 1006 is in communication with the first oil passage hole 1008, and the seventh filter seat hole 1007 is in communication with the second oil passage hole 1009; when the adjusting mechanism is in the third state, the path of the first main oil circuit sequentially includes: the oil inlet hole 1012, the second filter seat hole 1002, the sixth filter seat hole 1006, the first oil passage hole 1008, the first mounting hole 1010, the third filter seat hole 1003, the fifth filter seat hole 1005, and the oil outlet hole 1013; when the adjusting mechanism is in the third state, the path of the second main oil circuit sequentially includes: the oil inlet hole 1012, the first filter seat hole 1001, the seventh filter seat hole 1007, the second oil passage hole 1009, the second mounting hole 1011, the fourth filter seat hole 1004, the fifth filter seat hole 1005, and the oil outlet hole 1013.

[0045] Specifically, the filter base body 1000 has a cavity 1100. The first filter base hole 1001, the second filter base hole 1002, the third filter base hole 1003, and the fourth filter base hole 1004 are all communicated with the cavity 1100. The adjusting mechanism includes a regulating valve. The regulating valve has a valve core body 2000 for blocking the cavity 1100. The valve core body 2000 is provided with a first valve core hole 2001 corresponding to the first filter base hole 1001, a second valve core hole 2002 corresponding to the second filter base hole 1002, a third valve core hole 2003 corresponding to the third filter base hole 1003, and a fourth valve core hole 2004 corresponding to the fourth filter base hole 1004. The valve core body 2000 can rotate around the axis of the cavity 1100 to realize switching among a first state, a second state, and a third state. The filter base 100 further includes a filter base cover plate 3000 for preventing the valve core body 2000 from moving out of the cavity 1100. The filter base cover plate 3000 is provided with a first cover plate hole 3001 corresponding to the first valve core hole 2001, a second cover plate hole 3002 corresponding to the second valve core hole 2002, a third cover plate hole 3003 corresponding to the third valve core hole 2003, a fourth cover plate hole 3004 corresponding to the fourth valve core hole 2004, a fifth cover plate hole 3005 corresponding to the fifth filter base hole 1005, a sixth cover plate hole 3006 corresponding to the sixth filter base hole 1006, and a seventh cover plate hole 3007 corresponding to the seventh filter base hole 1007. The third cover plate hole 3003, the fourth cover plate hole 3004, and the fifth cover plate hole 3005 are communicated with each other. The second cover plate hole 3002 and the sixth cover plate hole 3006 are communicated. The first cover plate hole 3001 and the seventh cover plate hole 3007 are communicated. When the adjusting mechanism is in the first state, the path of the first main oil circuit sequentially includes: an oil inlet hole 1012, the first valve core hole 2001, the second filter base hole 1002, the sixth filter base hole 1006, the first oil passing hole 1008, the first mounting hole 1010, the fourth valve core hole 2004, the third filter base hole 1003, the fifth filter base hole 1005, and an oil outlet hole 1013. When the adjusting mechanism is in the second state, the path of the second main oil circuit sequentially includes: the oil inlet hole 1012, the second valve core hole 2002, the first filter base hole 1001, the seventh filter base hole 1007, the second oil passing hole 1009, the second mounting hole 1011, the third valve core hole 2003, the fourth filter base hole 1004, the fifth filter base hole 1005, and the oil outlet hole 1013.

[0046] In this embodiment, when the filter seat 100 is working, first adjust the adjusting mechanism to the third state, that is, make the first valve core hole 2001 of the valve core body 2000 communicate with the first filter seat hole 1001, the second valve core hole 2002 communicate with the second filter seat hole 1002, the third valve core hole 2003 communicate with the third filter seat hole 1003, and the fourth valve core hole 2004 communicate with the fourth filter seat hole 1004; so that both filters can work normally. At this time, the flow path of the engine oil in the first main oil circuit is as follows: oil inlet hole 1012, second filter seat hole 1002, sixth filter seat hole 1006, first oil passing hole 1008, first mounting hole 1010, first filter element 200, third filter seat hole 1003, fifth filter seat hole 1005, oil outlet hole 1013, to ensure the normal operation of the first filter element 200; the flow path of the engine oil in the first main oil circuit is as follows: oil inlet hole 1012, first filter seat hole 1001, seventh filter seat hole 1007, second oil passing hole 1009, second mounting hole 1011, second filter element 300, fourth filter seat hole 1004, fifth filter seat hole 1005, oil outlet hole 1013, to ensure the normal operation of the second filter element 300.

[0047] When the first filter element 200 needs to be replaced, switch the adjusting mechanism to the second state, that is, make the valve core body 2000 rotate around the axis of the cavity 1100, so that the second valve core hole 2002 communicates with the first filter seat hole 1001, and the third valve core hole 2003 communicates with the fourth filter seat hole 1004. At this time, the flow path of the engine oil is: oil inlet hole 1012, second valve core hole 2002, first filter seat hole 1001, seventh filter seat hole 1007, second oil passing hole 1009, second mounting hole 1011, second filter element 300, third valve core hole 2003, fourth filter seat hole 1004, fifth filter seat hole 1005, oil outlet hole 1013, so that the first filter element 200 stops working, that is, no engine oil flows through the first filter element 200, so as to replace the first filter element 200, and at the same time ensure the normal operation of the second filter element 300.

[0048] When the second filter element 300 needs to be replaced, switch the adjusting mechanism to the first state, that is, make the valve core body 2000 rotate around the axis of the cavity 1100, so that the first valve core hole 2001 communicates with the second filter seat hole 1002, and the fourth valve core hole 2004 communicates with the third filter seat hole 1003. At this time, the flow path of the engine oil is: oil inlet hole 1012, first valve core hole 2001, second filter seat hole 1002, sixth filter seat hole 1006, first oil passing hole 1008, first mounting hole 1010, fourth valve core hole 2004, third filter seat hole 1003, fifth filter seat hole 1005, oil outlet hole 1013, so that the second filter element 300 stops working, that is, no engine oil flows through the second filter element 300, so as to replace the second filter element 300, and at the same time ensure the normal operation of the first filter element 200.

[0049] Therefore, with this setting method, only by controlling the rotation of the valve core body 2000 in the cavity 1100 to change the corresponding connection relationship between each valve core hole and the filter seat hole, the switching of the adjusting mechanism among the first state, the second state and the third state can be realized. The structure is simple and the operation is convenient, which can improve the replacement efficiency of the filter element.

[0050] Continue to refer to Figures 1 to 5 , according to an optional embodiment of the present invention, the regulating valve further includes a rotating shaft 4000 and a handle 5000. The cover plate is provided with a through hole 3008. The extending direction of the rotating shaft 4000 is the same as the axial direction of the cavity 1100. The rotating shaft 4000 passes through the through hole 3008. One end of the rotating shaft 4000 is connected to the valve core body 2000, and the other end of the rotating shaft 4000 is connected to the handle 5000.

[0051] In this embodiment, only by screwing the handle 5000, the rotating shaft 4000 can drive the valve core body 2000 to rotate around the axis of the cavity 1100, so as to realize the switching of the adjusting mechanism among the first state, the second state and the third state.

[0052] The setting method of the rotating shaft 4000 and the handle 5000 has a simple structure, stable connection, and is simple and convenient to operate, further improving the replacement efficiency of the filter element.

[0053] As Figure 1 , Figure 2 and Figure 4 shown, according to an optional embodiment of the present invention, four cavity sealing rings 6001 are provided between the cavity 1100 and the valve core body 2000; one cavity sealing ring 6001 is provided at the edge of each of the first filter seat hole 1001, the second filter seat hole 1002, the third filter seat hole 1003 and the fourth filter seat hole 1004.

[0054] In this embodiment, the setting of the cavity sealing ring 6001 can prevent the leakage of engine oil from a certain filter seat hole when the total oil path of the engine oil does not flow through the filter seat hole (that is, the path where the filter seat hole is located is disconnected), ensuring the reliability of the overall operation of the filter seat 100.

[0055] Refer to Figure 1 , Figure 2 and Figure 4 , according to an optional embodiment of the present invention, four valve core sealing rings 6002 are provided between the valve core body 2000 and the filter seat cover plate 3000; one valve core sealing ring 6002 is provided at the edge of each of the first valve core hole 2001, the second valve core hole 2002, the third valve core hole 2003 and the fourth valve core hole 2004.

[0056] In this embodiment, similarly, the setting of the valve core sealing ring 6002 can prevent the leakage of engine oil from a certain valve core hole when the total oil circuit of the engine oil does not flow through this valve core hole (i.e., the path where this valve core hole is located is disconnected), further ensuring the reliability of the overall operation of the filter seat 100.

[0057] Continuing to refer to Figure 1 、 Figure 2 and Figure 4 , according to an optional embodiment of the present invention, a filter seat sealing ring 6003 is provided between the filter seat body 1000 and the filter seat cover plate 3000, and the filter seat sealing ring 6003 is arranged on the side wall of the filter seat body 1000.

[0058] In this embodiment, in combination with the above analysis, it is easy to understand that setting the filter seat sealing ring 6003 between the filter seat body 1000 and the filter seat cover plate 3000 can prevent engine oil from leaking between the filter seat body 1000 and the filter seat cover plate 3000, thereby ensuring the reliability of the overall operation of the filter seat 100.

[0059] According to an optional embodiment of the present invention, the regulating valve further includes a locking assembly 7000, and the locking assembly 7000 is used to limit the movement of the handle 5000 relative to the filter seat cover plate 3000.

[0060] In this embodiment, it is easy to understand that during the process of the regulating mechanism switching between the first state, the second state, and the third state, when the regulating mechanism remains in a certain state, the corresponding communication relationship between each valve core hole and the filter seat hole should remain unchanged to ensure the working reliability of the regulating mechanism.

[0061] Therefore, in this embodiment, the locking assembly 7000 is provided to make the handle 5000 immovable relative to the filter seat cover plate 3000, that is, to make the valve core body 2000 stationary relative to the cavity 1100, so as to ensure that the corresponding communication relationship between each valve core hole and the filter seat hole remains unchanged.

[0062] Figure 6 It is a structural schematic diagram of the filter seat cover plate and the regulating mechanism in the filter seat provided by the embodiment of the present invention. As Figure 6 shown, specifically, an arc-shaped limiting slideway 7001 can be provided on the surface of the filter seat cover plate 3000 facing away from the cavity 1100, and a locking pin 7002 is provided on the handle 5000. The locking pin 7002 is used to lock the handle 5000 to the limiting slideway 7001, and the limiting slideway 7001 and the locking pin 7002 constitute the locking assembly 7000.

[0063] In this setting mode, it is easy to understand that when the handle 5000 drives the valve core body 2000 to rotate in the cavity 1100, the movement trajectory of the handle 5000 itself is an arc, and the limit slideway 7001 is arranged corresponding to this arc-shaped trajectory. After the handle 5000 rotates to a suitable position (i.e., making the adjusting mechanism in the first state, the second state or the third state), the position of the handle 5000 is locked by the locking pin 7002, that is, the valve core body 2000 is made stationary relative to the cavity 1100 to ensure that the corresponding communication relationship between each valve core hole and the filter base hole remains unchanged.

[0064] Figure 7 An exploded view of the structure of the fuel filter device provided by the embodiment of the present invention is referred to together Figure 1 and Figure 7 , the embodiment of the present invention also provides a fuel filter device 10, which includes a first filter element 200, a second filter element 300 and any one of the above-mentioned filter seats 100. The first filter element 200 is installed in the first installation hole 1010, and the second filter element 300 is installed in the second installation hole 1011.

[0065] In this embodiment, the beneficial effect of the fuel filter device 10 is the same as that of any one of the above-mentioned filter seats 100, that is, it can realize the replacement of the filter element without stopping the engine, thus meeting the requirement of continuous operation of the engine. For specific analysis, reference can be made to the previous text and will not be elaborated here.

[0066] The embodiment of the present invention also provides an engine system, which includes an engine body and the above-mentioned fuel filter device 10.

[0067] In this embodiment, in this engine system, due to the provision of the above-mentioned fuel filter device 10, when the engine body needs to continuously operate, the filter element can be replaced without stopping the machine, thus meeting the working requirements. For specific analysis, reference can be made to the previous text and will not be elaborated here.

[0068] The above is only the preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present invention should be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. A filter seat, characterized in that: The filter seat has a first main oil circuit and a second main oil circuit inside, and the filter seat includes: A filter seat body, wherein the top end of the filter seat body has an oil inlet hole and an oil outlet hole, and the bottom end of the filter seat body has a first oil through hole and a second oil through hole, wherein the first oil through hole is communicated with a first mounting hole for mounting a first filter element, and the second oil through hole is communicated with a second mounting hole for mounting a second filter element; the path of the first total oil circuit includes the oil inlet hole, the first oil through hole, and the oil outlet hole in sequence; the path of the second total oil circuit includes the oil inlet hole, the second oil through hole, and the oil outlet hole in sequence; and An adjusting mechanism, the adjusting mechanism is used to adjust the on-off of the first main oil circuit and the on-off of the second main oil circuit, and the adjusting mechanism can switch between a first state, a second state and a third state; when the adjusting mechanism is in the first state, the first main oil circuit is connected and the second main oil circuit is disconnected; when the adjusting mechanism is in the second state, the second main oil circuit is connected and the first main oil circuit is disconnected; when the adjusting mechanism is in the third state, both the first main oil circuit and the second main oil circuit are connected.

2. The filter seat according to claim 1, characterized in that: The filter seat body comprises a first filter seat hole, a second filter seat hole, a third filter seat hole, a fourth filter seat hole, a fifth filter seat hole, a sixth filter seat hole, and a seventh filter seat hole; The first filter seat hole, the second filter seat hole and the oil inlet hole are connected to each other, the fifth filter seat hole is connected to the oil outlet hole, the fourth filter seat hole is connected to the second mounting hole, the third filter seat hole is connected to the first mounting hole, the sixth filter seat hole is connected to the first oil through hole, and the seventh filter seat hole is connected to the second oil through hole; When the adjustment mechanism is in the third state, the path of the first main oil circuit includes in sequence: the oil inlet hole, the second filter seat hole, the sixth filter seat hole, the first oil passage hole, the first mounting hole, the third filter seat hole, the fifth filter seat hole and the oil outlet hole; When the adjustment mechanism is in the third state, the path of the second main oil circuit includes, in sequence: the oil inlet hole, the first filter seat hole, the seventh filter seat hole, the second oil passage hole, the second mounting hole, the fourth filter seat hole, the fifth filter seat hole and the oil outlet hole.

3. The filter seat according to claim 2, characterized in that: The filter seat body has a cavity, and the first filter seat hole, the second filter seat hole, the third filter seat hole and the fourth filter seat hole are all connected to the cavity; The regulating mechanism comprises a regulating valve, the regulating valve having a valve core body for blocking the cavity, the valve core body being provided with a first valve core hole corresponding to the first filter seat hole, a second valve core hole corresponding to the second filter seat hole, a third valve core hole corresponding to the third filter seat hole, and a fourth valve core hole corresponding to the fourth filter seat hole, the valve core body being able to rotate around the axial direction of the cavity to realize switching among the first state, the second state and the third state; The filter seat further comprises a filter seat cover plate, the filter seat cover plate being used to prevent the valve core body from moving out of the cavity; the filter seat cover plate is provided with a first cover plate hole corresponding to the first valve core hole, a second cover plate hole corresponding to the second valve core hole, a third cover plate hole corresponding to the third valve core hole, a fourth cover plate hole corresponding to the fourth valve core hole, a fifth cover plate hole corresponding to the fifth filter seat hole, a sixth cover plate hole corresponding to the sixth filter seat hole, and a seventh cover plate hole corresponding to the seventh filter seat hole, the third cover plate hole, the fourth cover plate hole and the fifth cover plate hole are connected to each other, the second cover plate hole is connected to the sixth cover plate hole, and the first cover plate hole is connected to the seventh cover plate hole; When the regulating mechanism is in the first state, the path of the first main oil circuit includes in sequence: the oil inlet hole, the first valve core hole, the second filter seat hole, the sixth filter seat hole, the first oil passage hole, the first mounting hole, the fourth valve core hole, the third filter seat hole, the fifth filter seat hole, and the oil outlet hole; When the regulating mechanism is in the second state, the path of the second main oil circuit includes in sequence: the oil inlet hole, the second valve core hole, the first filter seat hole, the seventh filter seat hole, the second oil passage hole, the second mounting hole, the third valve core hole, the fourth filter seat hole, the fifth filter seat hole, and the oil outlet hole.

4. The filter seat according to claim 3, characterized in that: The regulating valve also includes a rotating shaft and a handle. The cover plate is provided with a through hole. The extending direction of the rotating shaft is the same as the axial direction of the cavity. The rotating shaft passes through the through hole. One end of the rotating shaft is connected to the valve core body, and the other end of the rotating shaft is connected to the handle.

5. The filter seat according to claim 3, characterized in that: Four cavity sealing rings are arranged between the cavity and the valve core body, and one cavity sealing ring is arranged at the edge of each of the first filter seat hole, the second filter seat hole, the third filter seat hole and the fourth filter seat hole.

6. The filter seat according to claim 3, characterized in that: Four valve core sealing rings are arranged between the valve core body and the filter seat cover plate, and one valve core sealing ring is arranged at the edge of each of the first valve core hole, the second valve core hole, the third valve core hole and the fourth valve core hole.

7. The filter seat according to claim 3, characterized in that: A filter seat sealing ring is provided between the filter seat body and the filter seat cover plate, and the filter seat sealing ring is arranged on the side wall of the filter seat body.

8. The filter seat according to claim 4, characterized in that: The regulating valve further comprises a locking assembly, and the locking assembly is used to limit the movement of the handle relative to the filter seat cover plate.

9. A fuel filter device, characterized in that: It comprises a first filter element, a second filter element and a filter seat as described in any one of claims 1 to 8, wherein the first filter element is installed in the first mounting hole, and the second filter element is installed in the second mounting hole.

10. An engine system, characterized in that: The invention comprises an engine body and the fuel filter device as claimed in claim 9.

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