Air suction prevention device for oil inlet and vehicle

Abstract

The utility model relates to the technical field of vehicle parts, and provides an oil inlet air suction prevention device and a vehicle. The oil inlet air suction prevention device comprises a shell with an inner cavity and an oil guide ring. The inner cavity is provided with a top wall and a bottom wall, an oil outlet hole is formed in the top wall, a plurality of oil inlet holes are formed in the bottom wall, and the oil inlet holes are arranged around the oil outlet hole from the view of the axial direction of the oil outlet hole. The oil guide ring can freely slide in the inner cavity or freely rotate around the axis of the oil outlet hole, and end face sealing fit is formed between the oil guide ring and the top wall and between the oil guide ring and the bottom wall. When the oil guide ring moves to any position, the oil guide ring and at least part of the oil inlet holes form an overlapping area, and the oil inlet holes overlapped with the oil guide ring, the oil guide ring and the oil outlet holes jointly form an oil inlet path. When the air suction prevention device for the oil inlet is applied to the front end of the oil inlet of the suction filter, the oil inlet path can be continuously changed through the movement of the oil guide ring, so that the oil inlet of the suction filter is located below the liquid level, and the air suction risk can be effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle parts, in particular to an air suction prevention device for an oil inlet.

[0002] The utility model also relates to a vehicle provided with the above-mentioned air suction prevention device for an oil inlet. Background Art

[0003] In a vehicle structure, taking the oil suction filter inlet system in a transmission as an example, the main function of the oil suction filter is to filter the oil. When the transmission oil pump operates, a negative pressure is generated at the outlet of the oil suction filter, causing the oil to enter the interior of the oil suction filter from the inlet of the oil suction filter. After the oil is filtered by the filter paper inside the oil suction filter, it flows out from the outlet of the oil suction filter and is driven by the oil pump into the hydraulic system.

[0004] In the prior art, the inlet of the oil suction filter is usually a fixed tubular round hole, which is located at the bottom of the oil suction filter. In the structure where the transmission is horizontally arranged, the oil inlet direction of the oil suction filter is perpendicular to the liquid level of the oil pan of the transmission, and the oil suction filter sucks the oil at the bottom of the oil pan through the oil inlet. Although the structure of the oil inlet of this kind of oil suction filter is simple, due to the fixed position of the oil inlet, when the vehicle accelerates or decelerates suddenly, or the inclination angle of the transmission oil pan changes greatly under working conditions such as the vehicle going uphill, downhill, turning left, or turning right, there is a risk that the oil inlet of the oil suction filter leaks out of the liquid level and causes air suction. Summary of the Utility Model

[0005] In view of this, the utility model aims to propose an air suction prevention device for an oil inlet, which can effectively reduce the risk of air suction.

[0006] To achieve the above object, the technical solution of the utility model is realized as follows:

[0007] An air suction prevention device for an oil inlet includes a housing having an inner cavity, and an oil guiding ring disposed in the inner cavity;

[0008] The inner cavity has a top wall and a bottom wall arranged oppositely. An oil outlet hole is provided on the top wall, and a plurality of oil inlet holes are provided on the bottom wall. Axially viewed from the oil outlet hole, the plurality of oil inlet holes are arranged around the oil outlet hole;

[0009] The oil guiding ring can slide freely in the inner cavity or rotate freely around the axis of the oil outlet hole, and end face sealing fits are formed between the oil guiding ring and both the top wall and the bottom wall;

[0010] When the oil guiding ring moves to any position, the oil guiding ring forms a coincidence area with at least part of the oil inlet holes, and an oil inlet path is jointly formed by the oil inlet holes coinciding with the oil guiding ring, the oil guiding ring, and the oil outlet hole.

[0011] Further, the oil guiding ring is circular, and the oil guiding ring can slide freely in the inner cavity.

[0012] Further, a rotating shaft arranged around the oil outlet hole is provided on the top wall and / or the bottom wall. The oil guiding ring is sleeved on the rotating shaft and can rotate freely around the axis of the oil outlet hole. A channel for the oil liquid to pass through is provided at the rotating shaft.

[0013] Further, the channel includes an oil inlet groove provided on the rotating shaft, and the oil inlet grooves are multiple and arranged at intervals along the circumferential direction of the rotating shaft.

[0014] Further, the oil guiding ring is strip-shaped, and at least one end of the oil guiding ring is arc-shaped.

[0015] Further, the inner cavity is circular; and / or, the oil outlet hole and each oil inlet hole are circular holes, and the multiple oil inlet holes are arranged in a circle.

[0016] Further, the housing includes a bottom plate and a top plate that are snap-connected together. The inner cavity is formed between the bottom plate and the top plate. Each oil inlet hole is provided on the bottom plate, and the oil outlet hole is provided on the top plate.

[0017] Further, a baffle extending towards the top plate side is provided at the edge of the bottom plate. The top plate is connected to the baffle, and the inner cavity is defined between the bottom plate, the baffle, and the top plate.

[0018] Compared with the prior art, the present utility model has the following advantages:

[0019] For the oil inlet anti-emptying device of the present utility model, by providing a housing with an inner cavity and an oil guiding ring arranged in the inner cavity, and enabling the oil guiding ring to slide freely in the inner cavity or rotate freely around the axis of the oil outlet hole. When the oil inlet anti-emptying device is arranged at the oil inlet of the suction filter in the transmission, when the oil liquid in the transmission shakes or the transmission tilts, the oil guiding ring can move with the oil liquid under the action of gravity or inertia and continuously change the oil inlet path, so that the oil liquid entering the inner hole of the oil guiding ring from the oil inlet hole can always flow out through the oil outlet hole, ensuring that the oil inlet of the suction filter is below the liquid level and effectively preventing and reducing the risk of the suction filter being emptied. Moreover, compared with the structure in the prior art, it can also reduce the oil filling amount of the transmission, reduce the oil churning loss, and improve the transmission efficiency of the transmission.

[0020] In addition, the oil guiding ring is set to be circular, with a relatively simple structure, which is easy to design and manufacture, and is conducive to the free sliding of the oil guiding ring in the inner cavity. The rotating shaft is provided, and the oil guiding ring is sleeved on the rotating shaft. In this way, not only can the oil guiding ring rotate around the axis of the oil outlet hole, but also during the movement of the oil guiding ring, the collision noise between the oil guiding ring and the housing can be avoided, and the use quality of the air prevention device at the oil inlet can be improved. The channel includes a plurality of oil inlet grooves arranged at intervals on the rotating shaft, with a relatively simple structure, which can ensure the connection between the inner ring of the oil guiding ring and the oil outlet hole, so that the oil in the inner ring of the oil guiding ring flows out through the oil inlet groove and the oil outlet hole.

[0021] Secondly, the oil guiding ring is set to be strip-shaped, and the end of the oil guiding ring is arc-shaped. At this time, not only can the arc-shaped end of the oil guiding ring close to the rotating shaft be used to facilitate the rotational cooperation between it and the rotating shaft, which helps to realize the free rotation of the oil guiding ring around the rotating shaft, that is, the axis of the oil outlet hole, but also, by using the arc-shaped end of the other end of the oil guiding ring, it is also conducive to the free rotation of the oil guiding ring in the inner cavity, and helps to control the inner diameter of the inner cavity, realizing the compactness of the overall device structure. The inner cavity of the housing is set to be circular, which is conducive to ensuring the free movement of the oil guiding ring in the inner cavity. The oil inlet hole and the oil outlet hole are circular holes, which helps to avoid the formation of stress concentration positions and can ensure the stability of the device structure. The multiple oil inlet holes are arranged in a circular pattern, which is convenient for design and manufacture and also helps to ensure the stability of the device.

[0022] In addition, the housing adopts a bottom plate and a top plate connected by buckling, with a relatively simple structure, which is easy to manufacture the housing and is also conducive to the setting of the oil guiding ring in the inner cavity. A baffle extending towards the top plate side is provided at the edge of the bottom plate, which is conducive to forming an inner cavity between the bottom plate, the baffle and the top plate, facilitating the preparation of the inner cavity.

[0023] Another object of the present invention is to propose a vehicle, in which the air prevention device at the oil inlet as described above is provided.

[0024] Furthermore, a transmission is provided in the vehicle, and the air prevention device at the oil inlet is provided at the oil inlet of the oil suction filter in the transmission.

[0025] For the vehicle of the present invention, by adopting the above-mentioned air prevention device at the oil inlet, the oil guiding ring can be utilized to move under the action of gravity or inertia, continuously changing the oil inlet path, so that the oil flowing into the inner hole of the oil guiding ring from the oil inlet hole can always flow out through the oil outlet hole, ensuring that the oil inlet connected thereto is below the liquid level, thereby effectively reducing the risk of air suction.

[0026] In addition, by arranging the above-mentioned oil inlet anti-air suction device at the oil inlet of the suction filter of the transmission, the guiding oil ring can also move under the action of gravity or inertia, continuously changing the oil inlet path, so that the oil flowing into the inner hole of the guiding oil ring through the oil inlet hole can always flow out through the oil outlet hole, ensuring that the oil inlet of the suction filter is below the liquid level, effectively reducing the risk of air suction at the oil inlet of the oil filter, and compared with the structure in the prior art, it can also reduce the oil filling amount of the transmission, reduce the oil agitation loss, and improve the transmission efficiency of the transmission. Brief Description of the Drawings

[0027] The drawings constituting a part of the present utility model are used to provide a further understanding of the present utility model. The schematic embodiments and descriptions thereof of the present utility model are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0028] Figure 1 is a schematic structural diagram of the oil inlet anti-air suction device according to the embodiment of the present utility model from the first perspective;

[0029] Figure 2 is a schematic structural diagram of the oil inlet anti-air suction device according to the embodiment of the present utility model from the second perspective;

[0030] Figure 3 is an exploded view of the oil inlet anti-air suction device according to the embodiment of the present utility model;

[0031] Figure 4 is Figure 2 a schematic structural diagram of the A-A view direction in

[0032] Figure 5 is a schematic structural diagram of the guiding oil ring at the first position in the bottom plate according to the embodiment of the present utility model;

[0033] Figure 6 is an oil inlet path diagram of the guiding oil ring at the first position according to the embodiment of the present utility model;

[0034] Figure 7 is a schematic structural diagram of the guiding oil ring at the second position in the bottom plate according to the embodiment of the present utility model;

[0035] Figure 8 is a schematic structural diagram of the guiding oil ring at the third position in the bottom plate according to the embodiment of the present utility model;

[0036] Figure 9 is an oil inlet path diagram of the guiding oil ring at the second position or the third position according to the embodiment of the present utility model;

[0037] Figure 10 is another structural diagram of the oil inlet anti-air suction device according to the embodiment of the present utility model;

[0038] Description of the reference numerals in the drawings:

[0039] 1. Bottom plate; 2. Top plate; 3. Oil guiding ring; 10. Inner cavity; 101. Baffle; 100. Oil inlet hole; 200. Oil outlet hole; 300. Inner ring; 201. Rotating shaft; 2011. Oil inlet groove. Detailed implementation manners

[0040] It should be noted that, without conflict, the embodiments in the present utility model and the features in the embodiments can be combined with each other.

[0041] In the following description, for the purpose of illustration rather than limitation, specific details such as specific system structures and technologies are presented in order to thoroughly understand the embodiments of the present application. However, those skilled in the art should clearly understand that the present application can also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to avoid unnecessary details from interfering with the description of the present application.

[0042] In the description of the present utility model, it should be noted that if terms indicating orientation or positional relationship such as "upper", "lower", "inner", "outer", etc. appear, they are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying 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 construed as a limitation to the present utility model. In addition, if terms such as "first" and "second" appear, they are also only for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0043] In addition, in the description of the present utility model, unless otherwise clearly defined, the cooperating components are connected using conventional connection structures in the art. Moreover, the terms "installation", "connection", "connection", and "connecting member" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood in combination with specific situations.

[0044] The present utility model will be described in detail below with reference to the drawings and in combination with embodiments.

[0045] Embodiment 1

[0046] This embodiment relates to an anti-air suction device for the oil inlet. During its use, the movement of the oil guiding ring is utilized to continuously change the oil inlet path, ensuring that the oil inlet of the suction filter is always below the liquid level, thereby effectively reducing the risk of air suction.

[0047] In a vehicle structure, taking the suction filter installed in the transmission as an example, the oil inlet of the suction filter is a fixed tubular round hole and is located at the bottom of the suction filter. When the transmission is placed horizontally, the oil inlet direction of the suction filter is perpendicular to the oil level in the oil pan, and the suction filter sucks the oil at the bottom of the oil pan through the oil inlet. However, when the vehicle accelerates or decelerates suddenly, or when the vehicle transmission tilts, there is a risk that the oil inlet of this type of suction filter leaks out of the liquid level and causes air suction.

[0048] Therefore, aiming at the deficiency that the oil inlet of the suction filter in the prior art has the risk of air suction, a new oil inlet anti-air suction device is proposed. And in the overall structure, as Figures 1 to 4 shown, the oil inlet anti-air suction device includes a housing having an inner cavity 10 and an oil guiding ring 3 disposed in the inner cavity 10.

[0049] Among them, the inner cavity 10 has a top wall and a bottom wall arranged oppositely. An oil outlet hole 200 is provided on the top wall, and a plurality of oil inlet holes 100 are provided on the bottom wall. Axially viewed from the oil outlet hole 200, the plurality of oil inlet holes 100 are arranged around the oil outlet hole 200. The oil guiding ring 3 can slide freely in the inner cavity 10 or rotate freely around the axis of the oil outlet hole 200, and end face sealing fits are formed between the oil guiding ring 3 and both the top wall and the bottom wall. And when the oil guiding ring 3 moves to any position, the oil guiding ring 3 forms an overlapping area with at least part of the oil inlet holes 100, and an oil inlet path is jointly formed by the oil inlet holes 100 overlapping with the oil guiding ring 3, the oil guiding ring 3, and the oil outlet hole 200.

[0050] At this time, in the above structure, a housing with an inner cavity 10 is provided, and an oil guiding ring 3 is provided in the inner cavity 10, so that the oil guiding ring 3 can slide freely in the inner cavity 10 or rotate freely around the axis of the oil outlet hole 200. Thus, when this oil inlet anti-air suction device is applied to the front end of the oil inlet of the suction filter in the transmission, the oil guiding ring 3 can move with the oil under the action of gravity or inertia and continuously change the oil inlet path, so that the oil entering the inner hole of the oil guiding ring 3 through the oil inlet holes 100 can always flow out through the oil outlet hole 200, ensuring that the oil inlet of the suction filter is below the liquid level and effectively preventing and reducing the risk of air suction of the suction filter. Moreover, compared with the structure in the prior art, it can also reduce the oil filling amount of the transmission, reduce the oil stirring loss, and improve the transmission efficiency of the transmission.

[0051] It should be noted that in this embodiment, the oil inlet anti-air suction device is specifically described in detail with the example of being arranged at the front end of the oil inlet of the suction filter in the transmission. Of course, it can also be applied to other components in the vehicle, such as being applied to the front end of the oil inlet of the engine oil pump, and it can also play the role of preventing air suction at the oil inlet.

[0052] Specifically, as a preferred implementation manner, continue to refer to Figures 1 to 4As shown, in this embodiment, the housing specifically includes a bottom plate 1 and a top plate 2 that are snap-connected together, and an inner cavity 10 is formed between the bottom plate 1 and the top plate 2. The bottom plate 1 and the top plate 2 are arranged opposite to each other, and the bottom plate 1 and the top plate 2 respectively constitute the top wall and the bottom wall of the inner cavity 10. Each of the above oil inlet holes 100 is specifically provided on the bottom plate 1, and the oil outlet hole 200 is provided on the top plate 2. This structure is relatively simple, easy to manufacture the housing, and also conducive to the installation of the oil guiding ring 3 in the inner cavity 10.

[0053] In terms of the specific structure, preferably, a baffle 101 extending toward the top plate 2 is provided at the edge of the bottom plate 1, the top plate 2 is specifically connected to the baffle 101, and the inner cavity 10 is defined between the bottom plate 1, the baffle 101 and the top plate 2. At this time, by using the provided baffle 101, the inner cavity 10 is formed between the bottom plate 1, the baffle 101 and the top plate 2, which is convenient for the preparation of the inner cavity 10. Moreover, in the specific implementation, the top plate 2 can be fixed to the baffle 101 at the edge of the bottom plate 1 by welding, bonding or other connection methods.

[0054] It is worth mentioning that in addition to being made of the snap-connected bottom plate 1 and top plate 2, the housing of this embodiment can also adopt other structural forms. In addition, in addition to providing a baffle 101 extending toward the top plate 2 at the edge of the bottom plate 1, the baffle 101 can also be provided at the edge of the top plate 2 and extend toward the bottom plate 1. At this time, the bottom plate 1 and the baffle 101 are fixedly connected together by welding, soldering or other connection methods, and such a setting is also possible.

[0055] As one of the preferred implementation manners, refer to Figure 2 and in combination with Figures 4 to 9 As shown, the oil guiding ring 3 of this embodiment is circular and can slide freely in the inner cavity 10. Its structure is simple and easy to design and manufacture. At this time, the annular oil guiding ring 3 has no constraints and can slide freely in the inner cavity 10, and end face sealing fits are formed between the oil guiding ring 3 and the top plate 2 and the bottom plate 1 respectively, that is, the end face of one end of the oil guiding ring 3 is in sealing contact with the top plate 2, and the end face of the other end of the oil guiding ring 3 is also in sealing contact with the bottom plate 1.

[0056] An oil outlet hole 200 is provided in the middle of the top plate 2, and six oil inlet holes 100 are arranged at intervals on the bottom plate 1. From the axial direction of the oil outlet hole 200, the six oil inlet holes 100 are arranged around the oil outlet hole 200. When the oil guiding ring 3 moves to any position under gravity or inertia force, the oil guiding ring 3 can form an overlapping area with at least part of the oil inlet holes 100, that is, the inner ring 300 of the oil guiding ring 3 is communicated with at least part of the oil inlet holes 100, and the oil inlet holes 100 overlapping with the oil guiding ring 3, the oil guiding ring 3 and the oil outlet hole 200 together form an oil inlet path.

[0057] As Figures 5 to 9As shown, the oil guiding ring 3 can freely slide to any position. Among them, when the oil guiding ring 3 is at Figure 5 the position shown, the oil inlet path formed on the anti-air suction device at the oil inlet is as Figure 6 shown. When the oil guiding ring 3 is at this position, an overlapping area is formed between the inner ring 300 of the oil guiding ring 3 and each oil inlet hole 100, that is, the inner ring 300 of the oil guiding ring 3 is connected to each oil inlet hole 100. At this time, the oil flows out through each oil inlet hole 100, the inner ring 300 of the oil guiding ring 3, and then through the oil outlet hole 200.

[0058] When the oil guiding ring 3 slides to Figure 7 and Figure 8 the positions shown, the oil inlet path formed on the anti-air suction device at the oil inlet is as Figure 9 shown. When the oil guiding ring 3 is at this position, an overlapping area is formed between the inner ring 300 of the oil guiding ring 3 and some of the oil inlet holes 100, that is, the inner ring 300 of the oil guiding ring 3 is connected to some of the oil inlet holes 100. At this time, the oil flows out through the connected part of the oil inlet holes 100, the inner ring 300 of the oil guiding ring 3, and then through the oil outlet hole 200.

[0059] In this embodiment, as a preferred implementation manner, the inner cavity 10 formed in the housing is circular, so as to facilitate ensuring the free movement of the oil guiding ring 3 in the inner cavity 10. Also as a preferred implementation manner, the oil outlet holes 200 provided on the top plate 2 and the multiple oil inlet holes 100 provided on the bottom plate 1 are circular holes, and the multiple oil inlet holes 100 are arranged in a circle. At this time, setting the oil inlet holes 100 and the oil outlet holes 200 as circular holes helps to avoid forming stress concentration positions and ensure the stability of the device structure. The multiple oil outlet holes 200 are arranged in a circle, which is convenient for design and preparation and also helps to ensure the stability of the anti-air suction device.

[0060] It should be noted here that in this embodiment, in addition to the six oil inlet holes 100 provided on the bottom plate 1, the oil inlet holes 100 can also be provided with other multiples, such as two, three, four, five, seven, eight or other multiples, etc. This embodiment does not limit the number of the oil inlet holes 100. It should also be noted that in addition to being set as circular holes, the oil inlet holes 100 and the oil outlet holes 200 in this embodiment can also be set as triangular holes, rectangular holes, oval holes or other irregularly shaped holes. In addition, in addition to being arranged in a circle, the multiple oil inlet holes 100 can also adopt other arrangement forms, as long as when the oil guiding ring 3 moves to any position, it can ensure that the inner ring 300 of the oil guiding ring 3 is connected to at least some of the oil inlet holes 100.

[0061] Based on the fact that the housing includes a bottom plate 1 and a top plate 2 that are buckled and connected, in this embodiment, a rotating shaft 201 can also be provided on the top wall around the oil outlet hole 200, that is, as Figure 10As shown, a rotating shaft 201 is arranged on the top plate 2 and is disposed around the oil outlet hole 200. The oil guiding ring 3 is sleeved on the rotating shaft 201 and freely rotates around the rotating shaft 201, that is, the axis of the oil outlet hole 200. A channel for the supply liquid to pass through is provided at the rotating shaft 201, and the oil liquid entering the inner ring 300 of the oil guiding ring 3 flows into the oil outlet hole 200 through the channel.

[0062] In this structure, the rotating shaft 201 is provided, and the oil guiding ring 3 is enabled to freely rotate around the rotating shaft 201. At this time, during the rotation of the oil guiding ring 3, the collision abnormal sound between the oil guiding ring 3 and the housing can be avoided, and the use quality of the air defense device at the oil inlet can be improved.

[0063] Specifically, referring to Figure 10 As shown, a cavity communicating with the oil outlet hole 200 is formed in the middle of the rotating shaft 201. The above-mentioned channel includes an oil inlet groove 2011 provided on the rotating shaft 201, and the oil inlet grooves 2011 are multiple and arranged at intervals along the circumferential direction of the rotating shaft 201. Each oil inlet groove 2011 communicates with the cavity, and the oil liquid entering the inner ring 300 of the oil guiding ring 3 can flow into the oil outlet hole 200 through the oil inlet groove 2011 and the cavity.

[0064] In this way, through the setting of the rotating shaft 201 and the multiple oil inlet grooves 2011, when the oil guiding ring 3 rotates around the rotating shaft 201 to a certain position where the oil inlet groove 201 at this position is blocked, the oil inlet grooves 2011 at other positions on the rotating shaft 201 that are not in contact with the oil guiding ring 3 can communicate with the inner ring 300 of the oil guiding ring 3. On the premise that the inner ring 300 of the oil guiding ring 3 is in communication with the oil outlet hole 200, the oil liquid entering the inner ring 300 of the oil guiding ring 3 passes through part of the oil inlet grooves 2011 and the cavity, and then flows out through the oil outlet hole 200, thereby ensuring that the inner ring 300 of the oil guiding ring 3 and the oil outlet hole 200 are always in a communicating state.

[0065] It should be noted here that in addition to setting the oil inlet grooves 2011 on the rotating shaft 201, the above-mentioned channel can also adopt other structural forms. For example, the rotating shaft 201 arranged on the top plate 2 does not contact the bottom plate 1, or the rotating shaft 201 arranged on the bottom plate 1 does not contact the top plate 2, so that the gap between the end of the rotating shaft 201 and the bottom plate 1 or the gap between the end of the rotating shaft 201 and the top plate 2 constitutes a channel for the supply liquid to pass through, and this is also feasible.

[0066] In addition, it is also worth pointing out that, based on the fact that the housing includes a bottom plate 1 and a top plate 2 that are snap-connected together, such that the rotating shaft 201 is provided on the top plate 2, it is also possible to provide the rotating shaft 201 on the bottom plate 1. In this way, it is also possible to achieve the rotation of the oil guiding ring 3 around the rotating shaft 201. Additionally, during specific implementation, the rotating shaft 201 is preferably integrally formed on the top plate 2. Of course, it can also be integrally formed on the bottom plate 1, which is conducive to the preparation of the rotating shaft 201.

[0067] In addition, it should also be noted that the rotating shaft 201 may not be provided on both the bottom plate 1 and the top plate 2, such as Figures 2 to 9 as shown. At this time, the circular oil guiding ring 3 or the strip-shaped oil guiding ring 3 moves freely in the inner cavity of the housing.

[0068] As another relatively optimal implementation manner, in this embodiment, the oil guiding ring 3 can also be provided in a strip shape, and at least one end of the oil guiding ring 3 is in an arc shape. At this time, it can be understood that, based on the fact that the oil guiding ring 3 is in a strip shape, and one end of the oil guiding ring 3 close to the rotating shaft 201 is in an arc shape, it is convenient for the rotational cooperation between it and the rotating shaft 201, which helps to achieve the free rotation of the oil guiding ring 3 around the rotating shaft 201, that is, the axis of the oil outlet hole 200. At the same time, by using the other end of the oil guiding ring 3 to be in an arc shape, it is also beneficial to realize the free rotation of the oil guiding ring 3 in the inner cavity 10. And compared with the shape of the end of the oil guiding ring 3 with sharp corners such as a rectangle, it is obviously helpful to control the inner diameter of the inner cavity 10, and the overall structure of the oil inlet hole anti-voiding device can be made compact.

[0069] As a further preferred implementation manner, as Figure 10 shown, on the basis of the strip-shaped structure of the oil guiding ring 3 in this embodiment, generally both ends of it can be in an arc shape. Such a structure is simple and more conducive to the design and manufacture of the oil guiding ring 3.

[0070] When the oil inlet hole anti-voiding device of this embodiment is applied to the oil inlet of the suction filter in the transmission, when the oil in the transmission sloshes or the transmission tilts, the oil guiding ring 3 can move with the oil under the action of gravity or inertia, and continuously change the oil inlet path, so that the oil entering the oil guiding ring 3 from the oil inlet hole 100 can always flow out through the oil outlet hole 200, ensuring that the oil inlet of the suction filter is below the liquid level, and effectively preventing and reducing the risk of the suction filter being voided. Moreover, compared with the structure in the prior art, it can also reduce the oil filling amount of the transmission, reduce the oil agitation loss, improve the transmission efficiency, and has a good use effect.

[0071] Embodiment Two

[0072] This embodiment relates to a vehicle, in which an anti-voiding device for the oil inlet of Embodiment 1 is provided. As a feasible implementation manner, in this embodiment, a transmission is provided in the vehicle, and an anti-voiding device for the oil inlet is provided at the oil inlet of the suction filter in the transmission. The anti-voiding device for the oil inlet is arranged at the front end of the oil inlet of the suction filter.

[0073] It should be noted that, as mentioned above, the anti-voiding device for the oil inlet of Embodiment 1 can be arranged not only at the front end of the oil inlet of the suction filter, but also on other components in the vehicle that play a role in preventing voiding during oil inlet, such as the oil inlet of the engine and oil pump.

[0074] For the vehicle of this embodiment, by adopting the anti-voiding device for the oil inlet of Embodiment 1, especially when the anti-voiding device for the oil inlet is applied at the front end of the oil inlet of the suction filter in the transmission, when the vehicle accelerates or decelerates suddenly or the vehicle transmission tilts, the oil guiding ring 3 moves under the action of gravity or inertia, continuously changing the oil inlet path, so that the oil fluid entering the inner hole of the oil guiding ring 3 from the oil inlet hole 100 can always flow out through the oil outlet hole 200, ensuring that the oil inlet of the suction filter is below the liquid level, and effectively reducing the risk of voiding. And compared with the structure in the prior art, it can also reduce the oil filling amount of the transmission, reduce the oil agitation loss, and improve the transmission efficiency of the transmission.

[0075] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An anti - air - suction device for the oil inlet, characterized in that: It includes a housing having an inner cavity (10), and an oil - guiding ring (3) disposed in the inner cavity (10); The inner cavity (10) has a top wall and a bottom wall arranged oppositely. An oil - outlet hole (200) is provided on the top wall, and a plurality of oil - inlet holes (100) are provided on the bottom wall. Axially viewed from the oil - outlet hole (200), the plurality of oil - inlet holes (100) are arranged around the oil - outlet hole (200); The oil - guiding ring (3) can slide freely in the inner cavity (10) or rotate freely around the axis of the oil - outlet hole (200), and end - face sealing fits are formed between the oil - guiding ring (3) and both the top wall and the bottom wall; When the oil - guiding ring (3) moves to any position, the oil - guiding ring (3) forms an overlapping area with at least part of the oil - inlet holes (100), and an oil - inlet path is jointly formed by the oil - inlet holes (100) overlapping with the oil - guiding ring (3), the oil - guiding ring (3), and the oil - outlet hole (200).

2. The anti - air - suction device for the oil inlet according to claim 1, characterized in that: The oil - guiding ring (3) is circular, and the oil - guiding ring (3) can slide freely in the inner cavity (10).

3. The anti - air - suction device for the oil inlet according to claim 1, characterized in that: A rotating shaft (201) arranged around the oil - outlet hole (200) is provided on the top wall and / or the bottom wall. The oil - guiding ring (3) is sleeved on the rotating shaft (201) and rotates freely around the axis of the oil - outlet hole (200), and a channel for the liquid to pass through is provided at the rotating shaft (201).

4. The anti - air - suction device for the oil inlet according to claim 3, characterized in that: The channel includes oil - inlet grooves (2011) provided on the rotating shaft (201), and the oil - inlet grooves (2011) are multiple and arranged at intervals along the circumferential direction of the rotating shaft (201).

5. The anti - air - suction device for the oil inlet according to claim 3, characterized in that: The oil - guiding ring (3) is strip - shaped, and at least one end of the oil - guiding ring (3) is arc - shaped.

6. The anti - air - suction device for the oil inlet according to claim 1, characterized in that: The inner cavity (10) is circular; and / or, The oil - outlet hole (200) and each of the oil - inlet holes (100) are circular holes, and the plurality of oil - inlet holes (100) are arranged in a circular shape.

7. The anti - air - suction device for the oil inlet according to any one of claims 1 to 6, characterized in that: The housing includes a bottom plate (1) and a top plate (2) connected by buckling. The inner cavity (10) is formed between the bottom plate (1) and the top plate (2). Each of the oil - inlet holes (100) is provided on the bottom plate (1), and the oil - outlet hole (200) is provided on the top plate (2).

8. The anti - air - suction device for the oil inlet according to claim 7, characterized in that: A baffle plate (101) extending towards the top plate (2) is provided at the edge of the bottom plate (1), the top plate (2) is connected to the baffle plate (101), and an inner cavity (10) is defined between the bottom plate (1), the baffle plate (101) and the top plate (2).

9. A vehicle, characterized in that: An anti - air - suction device for the oil inlet as claimed in any one of claims 1 to 8 is provided in the vehicle.

10. The vehicle according to claim 9, characterized in that: A transmission is provided in the vehicle, and the anti - air - suction device for the oil inlet is provided at the oil inlet of the suction filter in the transmission.

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