CN218439965U - Oil tank and hydraulic oil tank assembly - Google Patents

Abstract

The utility model discloses an oil tank and hydraulic tank assembly who has it, the oil tank includes: the oil leakage device comprises a box body, a mounting seat and a sealing plug, wherein an oil leakage opening is formed in the integrally formed bottom wall of the box body; the mounting seat is fixedly connected to the bottom wall of the box body and arranged on the inner side of the bottom wall of the box body, and a flow guide hole which is respectively communicated with the inner space of the box body and the oil leakage port is formed in the mounting seat; the sealing plug is arranged on the outer side of the bottom wall of the box body, penetrates through the oil leakage opening and is connected with the mounting seat, and the sealing plug is in sealing fit with the periphery of the oil leakage opening so as to seal the oil leakage opening. Through using above-mentioned technical scheme, can seal the oil leak mouth, and do benefit to and simplify the structure, reduce cost.

Description

Oil tank and hydraulic oil tank assembly

Technical Field

The utility model relates to a hydraulic tank technical field, in particular to oil tank and hydraulic tank assembly that has this oil tank.

Background

In the correlation technique, sanitation special-purpose vehicle often adopts hydraulic system to realize some upper assembling operation functions, and wherein, the oil leak mouth department of hydraulic system's oil tank adopts circumference welding can lead to the mount pad screw thread size shrink, need carry out the tapping with the screw tap to the screw hole and handle, and structure and manufacturing process are comparatively complicated, are unfavorable for practicing thrift the cost.

SUMMERY OF THE UTILITY MODEL

The present invention aims at solving one of the technical problems in the related art at least to a certain extent. Therefore, an object of the utility model is to provide an oil tank, sealing plug and the mount pad fixed connection who locates in the oil tank can seal the oil leak mouth, and do benefit to simplified structure, reduce cost.

Another object of the utility model is to provide a hydraulic tank assembly, including aforementioned oil tank.

According to the utility model discloses oil tank, include: the oil leakage device comprises a box body, a mounting seat and a sealing plug, wherein an oil leakage opening is formed in the integrally formed bottom wall of the box body; the mounting seat is fixedly connected to the bottom wall of the box body and arranged on the inner side of the bottom wall of the box body, and flow guide holes respectively communicated with the inner space of the box body and the oil leakage port are formed in the mounting seat; the sealing plug is arranged on the outer side of the bottom wall of the box body, penetrates through the oil leakage opening and is connected with the mounting seat, and the sealing plug is in sealing fit with the periphery of the oil leakage opening so as to seal the oil leakage opening.

According to the utility model discloses oil tank, through being connected the sealing plug with the mount pad of locating in the oil tank, can seal the oil leak mouth, and do benefit to and simplify structure, reduce cost.

In addition, the fuel tank according to the above embodiment of the present invention may also have the following additional technical features:

in some examples of the invention, the mount includes: the base is arranged on the inner side of the bottom wall of the box body in a stacked mode and fixedly connected with the bottom wall of the box body, and the base is provided with a mounting hole opposite to the oil leakage port; the positioning seat is fixedly connected with the base, and the sealing plug is connected with the positioning seat.

In some examples of the invention, the mount further comprises: the positioning seat includes: the threaded pipe extends in the vertical direction, the lower end of the threaded pipe is connected with the base, a threaded hole is formed in the threaded pipe and is opposite to the mounting hole, and the sealing plug penetrates through the oil leakage opening and is connected with the threaded pipe.

In some examples of the present invention, the projection of the inner peripheral surface of the threaded pipe toward the bottom wall of the box body falls into the inner side of the oil leakage port in the axial direction along the oil leakage port.

In some examples of the present invention, the oil leakage port, the mounting hole and the threaded hole are coaxially disposed, the inner diameter of the threaded hole is not greater than the inner diameter of the oil leakage port, and the inner diameter of the threaded hole is not greater than the inner diameter of the mounting hole.

In some examples of the present invention, the lower end periphery of the threaded pipe is connected to the inner periphery of the base.

In some examples of the present invention, the flow guiding hole is disposed between the threaded pipe and the base, a first end of the flow guiding hole is located between an outer circumferential surface of the threaded pipe and an upper surface of the base, and a second end of the flow guiding hole extends to an inner circumferential surface penetrating the mounting hole to communicate with the oil leakage port, and the flow guiding hole is gradually inclined toward the oil leakage port in a direction from the first end to the second end; the diversion hole comprises one or a plurality of diversion holes arranged at intervals along the circumferential direction of the threaded pipe.

In some examples of the invention, the base is spot welded to the bottom wall of the tank;

in some examples of the invention, the threaded tube is spot welded to the base;

in some examples of the invention, the base is in the shape of a triangular plate.

In some examples of the invention, the sealing plug comprises: the connecting rod extends along the vertical direction, and the upper end of the connecting rod penetrates through the oil leakage port to be connected with the mounting seat; the sealing head is connected with the lower end of the connecting rod and is in sealing fit with the outer surface of the periphery of the oil leakage opening so as to seal and cover the oil leakage opening.

In some examples of the present invention, the bottom wall surface of the box body and the sealing head are provided with a sealing ring therebetween, the sealing ring is surrounded by the oil leakage opening, and seals the bottom wall surface of the box body and the gap between the sealing heads.

In some examples of the invention, the sealing plug is constructed as a magnetic structure.

According to the utility model discloses hydraulic tank assembly, including aforementioned oil tank.

According to the utility model discloses hydraulic tank assembly can simplify the structure, promotes the oil extraction effect.

Drawings

Fig. 1 is a partial structural schematic diagram of an oil tank according to some embodiments of the present invention.

Fig. 2 is a partial structural schematic view of the oil tank according to some embodiments of the present invention (illustrating a state in which the sealing plug and the sealing ring are separated from the tank body, i.e., a state in which the oil tank is discharged.

Fig. 3 is a view in the direction a of fig. 2 (showing the structure of the mount).

Fig. 4 is a schematic structural diagram of a hydraulic tank assembly according to some embodiments of the present invention.

Fig. 5 is a partial structural view of a fuel tank in the related art.

Reference numerals are as follows:

1. an oil tank; 11. a box body; 101. an oil leakage port; 12. a mounting seat; 102. a flow guide hole; 13. a sealing plug; 121. a base; 103. mounting holes; 122. a threaded pipe; 104. a threaded hole; 131. a connecting rod; 132. a sealing head; 14. a seal ring; 110. a welding point; 2. an oil return filter; 3. an air filter; 4. a liquid level liquid thermometer; 5. an oil absorption filter element;

10', an oil discharge port; 20', a mounting seat; 30', a plug screw; 40', sealing points.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

With reference to fig. 1 to 4, an oil tank 1 according to an embodiment of the present invention includes: the oil-leakage-prevention device comprises a box body 11, a mounting seat 12 and a sealing plug 13, wherein an oil leakage opening 101 is formed in the integrally formed bottom wall of the box body 11, and oil in the box body 11 can be discharged through the oil leakage opening 101; the sealing plug 13 is used for sealing the oil leakage port 101; a mounting 12 is provided in the housing 11 and may be used to connect the housing 11 to the sealing plug 13. More specifically, the mounting seat 12 is connected to the bottom wall of the box body 11 and is disposed inside the bottom wall of the box body 11, so that the structure of the outer side of the box body 11 is flat, which is beneficial to simplifying the structure. Further, be equipped with water conservancy diversion hole 102 on mount pad 12, water conservancy diversion hole 102 can communicate 11 inner space of box and oil leakage 101, and fluid can directly discharge through oil leakage 101, also can flow into water conservancy diversion hole 102 and flow out from oil leakage 101, can avoid the fluid of 11 bottoms of box to receive mount pad 12 to block and remain in 11 of box, has improved the oil extraction effect, does benefit to the cleanliness that improves oil tank 1. The sealing plug 13 is arranged on the outer side of the bottom wall of the box body 11, the sealing plug 13 is convenient to disassemble and assemble, the sealing plug 13 penetrates through the oil leakage port 101 to be connected with the mounting seat 12, the sealing plug 13 is in sealing fit with the periphery of the oil leakage port 101 to seal the oil leakage port 101, the connection stability of the sealing plug 13 can be improved, and the sealing effect is improved. That is to say, the mounting seat 12 is arranged on the inner side of the box body 11, and when the sealing plug 13 is connected with the mounting seat 12, the sealing plug 13 can be matched with the outer surface of the oil tank 1, that is, the oil leakage port 101 is directly sealed on the outer wall of the box body 11, which is beneficial to simplifying the sealing structure.

In addition, the oil leakage port 101 is sealed at the peripheries of the sealing plug 13 and the oil leakage port 101, the structure of the oil tank 1 can be simplified, the sealing effect can be improved only by replacing the sealing plug 13 during maintenance, and the use cost of the oil tank 1 is favorably reduced.

According to the utility model discloses oil tank 1 through linking to each other sealing plug 13 with the mount pad 12 of locating in the box 11, can seal oil leak mouth 101, and does benefit to the sealed and emission effect that improves fluid, does benefit to simplified structure, reduce cost.

During application, the sealing plug 13 can penetrate through the oil leakage opening 101 from the outer side of the bottom wall of the box body 11 and is fixedly connected with the mounting seat 12 to be mounted on the box body 11, and the sealing plug 13 can seal the periphery of the oil leakage opening 101 to prevent oil in the box body 11 from leaking. When the fluid in the box 11 needs to be discharged, sealing plug 13 can be dismantled, because oil leak 101 is located the box 11 diapire, consequently fluid can be discharged through oil leak 101 based on self gravity, and in addition, water conservancy diversion hole 102 on the mount pad 12 can further improve the oil extraction effect of box 11 diapire, improves oil tank 1 cleanliness factor. However, in the related art, referring to fig. 5, the mounting seat 20 'is disposed at the oil drain port 10', and when the oil drain port is used, a seal needs to be disposed between the oil drain port 10 'and the mounting seat 20', and a seal, i.e., a seal point 40', needs to be disposed between the mounting seat 20' and the plug screw 30.

Combine fig. 1, in some embodiments of the utility model, mount pad 12 can include base 121 and positioning seat, base 121 is range upon range of to be set up in the diapire of box 11 inboard, and the diapire fixed connection of base 121 and box 11, can improve the stability that mount pad 12 and box 11 are connected, be equipped with the mounting hole 103 relative with oil leak 101 on the base 121, positioning seat and base 121 fixed connection, sealing plug 13 links to each other with the positioning seat, sealing plug 13 can be through mounting hole 103 and mount pad 12 fixed connection, oil leak 101 can also directly be sealed.

With reference to fig. 1, in some embodiments of the present invention, the positioning seat may include a threaded tube 122, the threaded tube 122 extends in the up-down direction, and the lower end of the threaded tube 122 is connected to the base 121, a threaded hole 104 is formed in the threaded tube 122, the threaded hole 104 is opposite to the mounting hole 103, and the sealing plug 13 passes through the oil leakage opening 101 and is connected to the threaded tube 122. That is to say, one end of the threaded pipe 122 is connected with the base 121 and extends upwards for a certain distance in the box 11, so that the contact area between the mounting seat 12 and the sealing plug 13 can be increased, and the connection stability can be improved, wherein the outer surface of the sealing plug 13 can be provided with threads, and the threads of the sealing plug 13 are suitable for being matched with the threaded pipe 122, that is, the assembly can be realized by screwing or unscrewing the sealing plug 13 and the threaded pipe 122, so that the structure is simplified, convenience is provided for use, the screwing force between the sealing plug 13 and the threaded hole 104 can be adjusted according to actual conditions, or the sealing plug 13 is replaced, convenience is provided for users, and the operation and maintenance difficulty is reduced.

With reference to fig. 2, in some embodiments of the present invention, in the axial direction along the oil leakage port 101, the inner peripheral surface of the threaded tube 122 falls into the inner side of the oil leakage port 101 toward the projection of the bottom wall of the box 11, and therefore, the sealing plug 13 is not easily interfered with the bottom wall of the box 11 when being connected with the threaded tube 122 through the oil leakage port 101, so as to facilitate the assembly of the sealing plug 13, and facilitate the rapid assembly. The projections of the inner peripheral surface of the threaded pipe 122 toward the bottom wall of the case 11 may overlap in the axial direction along the oil drain port 101.

With reference to fig. 2, in some embodiments of the present invention, the oil leakage port 101, the mounting hole 103 and the threaded hole 104 are coaxially disposed, so as to facilitate the discharging of oil, and reduce the space occupied by the assembly of the mounting seat 12 and the sealing plug 13, the inner diameter of the threaded hole 104 is not greater than the inner diameter of the oil leakage port 101, and the inner diameter of the threaded hole 104 is not greater than the inner diameter of the mounting hole 103. For example, the inner diameters of the threaded hole 104, the mounting hole 103 and the oil leakage port 101 may be gradually increased in the up-down direction to facilitate oil drainage; the inner diameters of the mounting hole 103 and the oil leakage port 101 may be the same, and the inner diameter of the threaded hole 104 may be smaller than the inner diameters of the mounting hole 103 and the oil leakage port 101.

In some embodiments of the present invention, the lower end periphery of the threaded pipe 122 is connected to the inner periphery of the base 121, which is beneficial to improve the structural stability.

With reference to fig. 2, in some embodiments of the present invention, the sealing plug 13 comprises: the connecting rod 131 and the sealing head 132, the connecting rod 131 extends along the up-down direction, and the upper end of the connecting rod passes through the oil leakage port 101 to be connected with the mounting base 12; the sealing head 132 is connected to the lower end of the connecting rod 131, and the sealing head 132 is in sealing engagement with the outer surface of the periphery of the oil leakage port 101 to cover the oil leakage port 101.

With reference to fig. 1 and fig. 2, in some embodiments of the present invention, a sealing ring 14 is disposed between the outer surface of the bottom wall of the box 11 and the sealing head 132, the sealing ring 14 is disposed around the oil leakage opening 101, and the gap between the outer surface of the bottom wall of the box 11 and the sealing head 132 is sealed, so as to further improve the sealing effect. The sealing ring 14 is arranged between the box body 11 and the sealing plug 13, so that abrasion between the sealing plug 13 and the outer surface of the box body 11 during cock rotation can be avoided, and the box body 11 is protected. The sealing ring 14 may also be a flexible structure, which is beneficial to improve the buffering effect and the protection effect.

With reference to fig. 2 and 3, in some embodiments of the present invention, the diversion hole 102 is disposed between the threaded pipe 122 and the base 121, the first end of the diversion hole 102 is located between the outer peripheral surface of the threaded pipe 122 and the upper surface of the base 121, and the second end extends to the inner peripheral surface that runs through the mounting hole 103, so as to communicate with the oil leakage port 101, the diversion hole 102 is in the direction from the first end to the second end, gradually incline toward the oil leakage port 101, the oil of the bottom of the box 11 or the oil between the threaded pipe 122 and the base 121 can be guided to the oil leakage port 101, so that the oil can be discharged conveniently, wherein, the diversion hole 102 includes one or more than one circumferential interval along the threaded pipe 122, which is favorable for improving the discharging effect of the oil, and can avoid the residual oil in the box 11. Specifically, base 121 stacks on the bottom wall of box 11, and screwed pipe 122 is connected on base 121, consequently for box 11 bottom wall upwards protrusion, under the condition of not with the help of external force, bottom fluid is difficult to cross screwed pipe 122 and discharges from oil leakage opening 101, through setting up water conservancy diversion hole 102, can guide the fluid of box 11 bottom to flow to oil leakage opening 101, does benefit to fluid and discharges, has improved the cleanliness after the oil change.

With reference to fig. 1, in some embodiments of the present invention, the base 121 is connected with the bottom wall spot welding of the box 11, the threaded pipe 122 is connected with the base 121 by spot welding, so that the requirement of the quality of the welding seam can be reduced, the welding deformation can be avoided, and the manufacturing difficulty can be reduced.

With reference to fig. 1 to 3, a plurality of welding points 110 may be provided between the base 121 and the box 11, and a plurality of welding points 110 may be provided between the threaded pipe 122 and the base 121, which is advantageous for manufacturing. In addition, the base 121 and the box body 11 are spot-welded, so that a gap capable of discharging oil is formed between the base 121 and the box body 11; spot welding is carried out between the base 121 and the threaded pipe 122, and oil can be discharged from a gap between the base 121 and the threaded pipe 122, so that the oil can be completely discharged. The waste oil can be completely discharged during maintenance, so that the cleanliness of hydraulic oil is improved, and the service life of a hydraulic element can be prolonged. In the related art, referring to fig. 5, since the mounting seat 12 is connected to the oil leakage opening 101, the mounting seat 20 'is circumferentially welded, and the circumferential welding may cause the size of the thread of the mounting seat 20' to shrink, so that the threaded hole needs to be tapped by a tap, which increases the processing difficulty.

With reference to fig. 3, in some embodiments of the present invention, the base 121 is in a triangular plate shape, which can improve the structural strength of the base 121 and improve the stability of the assembly.

In some embodiments of the present invention, the sealing plug 13 is constructed in a magnetic structure, which can improve the discharging effect of the oil and the cleanness of the box 11. Particularly, metal impurity particles in oil can be actively attracted during operation, and precipitation and impurity removal are facilitated.

With reference to fig. 4, according to the utility model discloses hydraulic tank assembly 100, including aforementioned oil tank 1, through setting up aforementioned oil tank 1 on hydraulic tank assembly 100, can simplify the structure, promote the oil extraction effect.

Specifically, the hydraulic oil tank assembly 100 may be composed of an oil tank 1, an oil return filter 2, an air filter 3, a liquid level thermometer 4, an oil absorption filter element 5, and the like. In order to save cost, the tank body 11 of the oil tank 1 is formed by bending and welding thin steel plates, an oil leakage port 101 is formed in the bottom of the tank body 11, the mounting seat 12 is welded in the tank body 11 at the oil leakage port 101, and the sealing plug 13 is fixedly connected with the mounting seat 12 to seal the oil leakage port 101. When the hydraulic oil sealing device is used, after the hydraulic oil sealing device is used for a period of time and oil drainage liquid needs to be discharged, the sealing plug 13 is unscrewed, waste oil is discharged and then screwed, and finally new clean hydraulic oil is replaced.

More specifically, the sanitation vehicle usually adopts a hydraulic system to realize some loading operation functions, and the hydraulic oil tank 1 of the hydraulic system is integrated because of the compact arrangement space, so that the hydraulic oil tank assembly 100 can be applied to the sanitation vehicle, which is beneficial to simplifying the structure of the oil tank 1 and reducing the cost.

A hydraulic tank assembly 100 and a tank 1 according to an embodiment of the present invention will be described with reference to the drawings.

According to the utility model discloses hydraulic tank assembly 100 includes: the device comprises an oil tank 1, an oil return filter 2, an air filter 3, a liquid level thermometer 4, an oil absorption filter element 5 and the like. Wherein, return oil filter 2 stretches into in 1 box 11 of oil tank, and air cleaner 3 locates 1 roof of oil tank, and oil absorption filter core 5 is located the lower part of box 11, and liquid level liquid thermometer 4 locates between air cleaner 3 and oil absorption filter core 5.

Further, the fuel tank 1 includes: the oil leakage device comprises a box body 11, an oil leakage port 101 arranged on the bottom wall of the box body 11, a mounting seat 12, a sealing plug 13 and a sealing ring 14, wherein the mounting seat 12 comprises a base 121 and a threaded pipe 122, the base 121 is arranged on the inner side of the bottom wall of the box body 11 in a stacking mode through spot welding, and a mounting hole 103 opposite to the oil leakage port 101 is formed in the center of the base 121; the lower end of the threaded pipe 122 is connected to the base 121 through spot welding, the center of the threaded pipe is provided with a threaded hole 104, and the diameter of the mounting hole 103 is larger than that of the threaded hole 104. The mounting seat 12 is further provided with a plurality of guiding holes 102, the guiding holes 102 are disposed between the threaded pipe 122 and the base 121, a first end of each guiding hole 102 is located between the outer circumferential surface of the threaded pipe 122 and the upper surface of the base 121, and a second end of each guiding hole 102 extends to the inner circumferential surface penetrating through the mounting hole 103 and gradually inclines towards the oil leakage port 101. The connecting rod 131 of the sealing plug 13 extends into the mounting hole 103 from the oil leakage port 101 on the bottom wall of the box body 11 and is screwed into the threaded hole 104 together with the threaded pipe 122, the sealing head 132 of the sealing plug 13 covers the oil leakage port 101, and a sealing ring 14 may be further disposed between the sealing head 132 and the outer surface of the bottom wall of the box body 11, so as to further improve the sealing effect.

When in use, the sealing plug 13 is tightly connected with the threaded pipe 122 through a tightening torque, the sealing element of the sealing plug is tightly contacted with the bottom surface of the box body 11, compression deformation is generated, and oil tightness of the sealing plug is ensured, because the sealing plug 13 has magnetism, metal impurity particles in oil liquid can be attracted to the sealing plug 13, and the impurities can be discharged when the sealing plug 13 is disassembled. The connection between the base 121 and the box 11 and the connection between the threaded pipe 122 and the base 121 have no sealing requirement, so that spot welding can be adopted for fixation, and the deformation of parts can be reduced or even ignored. Therefore, on the premise of ensuring the flatness around the oil leakage port 101 at the bottom of the box body 11, the pressure detection on the box body 11 is not needed, the structure is simplified, and the manufacturing cost is reduced.

During maintenance, the sealing plug 13 is detached, oil can flow out through the diversion hole 102 on the contact surface of the threaded pipe 122 and the base 121 and the gap between the base 121 and the box body 11, the oil at the bottom of the box body 11 can be completely discharged as far as possible, and pollution to newly-replaced hydraulic oil is reduced.

According to the utility model discloses oil tank 1 can avoid the spare part deformation that continuous welding brought, reduces welding seam length and sealing position, can adopt rubber to seal as the sealing member, and the interface is realized sealedly after connecting rod 131 fastens, if the oil leak phenomenon appears, change the sealing member or increase tighten the moment can, it is sealed simple reliable, it is convenient to maintain. In addition, the clearances between the diversion hole 102 and the base 121, and between the threaded pipe 122 and the tank 11 can discharge all the waste oil at the bottom of the tank 11, and can reduce the pollution to the new hydraulic oil. The sealing plug 13 has a sealing function and a magnetic structure, metal impurity particles in oil can be attracted, the sealing plug 13 is detached, impurities can be discharged, and pollution of hydraulic oil is further reduced.

In the description of the present invention, it is to be understood that the terms "length", "upper", "lower", "front", "rear", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be interconnected within two elements or in a relationship where two elements interact with each other unless otherwise specifically limited. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, a first feature "on" or "under" a second feature may be directly contacting the second feature or the first and second features may be indirectly contacting the second feature through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

While embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations of the above embodiments may be made by those of ordinary skill in the art without departing from the scope of the present invention.

Claims (10)

1. A fuel tank (1), characterized by comprising:

the oil leakage device comprises a box body (11), wherein an oil leakage port (101) is formed in the integrally formed bottom wall of the box body (11);

the mounting seat (12) is fixedly connected to the bottom wall of the box body (11) and arranged on the inner side of the bottom wall of the box body (11), and the mounting seat (12) is provided with a flow guide hole (102) which is respectively communicated with the inner space of the box body (11) and the oil leakage port (101);

the sealing plug (13) is arranged on the outer side of the bottom wall of the box body (11) and penetrates through the oil leakage port (101) to be connected with the mounting seat (12), and the sealing plug (13) is in sealing fit with the periphery of the oil leakage port (101) to seal the oil leakage port (101).

2. A tank as claimed in claim 1, characterized in that said mounting seat (12) comprises:

the base (121), the base (121) is arranged on the inner side of the bottom wall of the box body (11) in a stacking mode, and the base (121) is provided with a mounting hole (103) opposite to the oil leakage port (101);

the positioning seat is fixedly connected with the base (121), and the sealing plug (13) is connected with the positioning seat.

3. A fuel tank according to claim 2, wherein the positioning socket comprises:

the sealing plug comprises a threaded pipe (122), the threaded pipe (122) extends in the vertical direction, the lower end of the threaded pipe (122) is connected with the base (121), a threaded hole (104) is formed in the threaded pipe (122), the threaded hole (104) is opposite to the mounting hole (103), and the sealing plug (13) penetrates through the oil leakage opening (101) and is connected with the threaded pipe (122).

4. A fuel tank according to claim 3, wherein a projection of an inner peripheral surface of the threaded pipe (122) toward a bottom wall of the tank body (11) falls inside the oil leak port (101) in an axial direction of the oil leak port (101);

and/or the oil leakage opening (101), the mounting hole (103) and the threaded hole (104) are coaxially arranged, the inner diameter of the threaded hole (104) is not more than that of the oil leakage opening (101), and the inner diameter of the threaded hole (104) is not more than that of the mounting hole (103);

and/or the lower end periphery of the threaded pipe (122) is connected with the inner periphery of the base (121).

5. The fuel tank according to claim 3, wherein the flow guide hole (102) is provided between the threaded pipe (122) and the base (121), a first end of the flow guide hole (102) is located between an outer circumferential surface of the threaded pipe (122) and an upper surface of the base (121), and a second end of the flow guide hole extends to penetrate through an inner circumferential surface of the mounting hole (103) to communicate with the oil leakage port (101), and the flow guide hole (102) is gradually inclined toward the oil leakage port (101) in a direction from the first end to the second end;

the diversion hole (102) comprises one or a plurality of diversion holes arranged at intervals along the circumference of the threaded pipe (122).

6. A fuel tank (1) as claimed in claim 3, characterized in that said base (121) is spot-welded to a bottom wall of said tank (11);

or the threaded pipe (122) is connected with the base (121) in a spot welding mode;

or the base (121) is in a triangular plate shape.

7. Fuel tank according to any of claims 1 to 6, characterized in that the sealing plug (13) comprises:

the connecting rod (131) extends along the vertical direction, and the upper end of the connecting rod (131) penetrates through the oil leakage port (101) to be connected with the mounting seat (12);

the sealing head (132), the sealing head (132) with the lower extreme of connecting rod (131) links to each other, just the sealing head (132) with the peripheral surface sealing cooperation of oil leakage mouth (101) to the closing cap oil leakage mouth (101).

8. The fuel tank according to claim 7, characterized in that a sealing ring (14) is arranged between the outer surface of the bottom wall of the tank body (11) and the sealing head (132), the sealing ring (14) is arranged around the oil leakage opening (101) and closes a gap between the outer surface of the bottom wall of the tank body (11) and the sealing head (132).

9. A fuel tank according to claim 1, characterized in that the sealing plug (13) is constructed as a magnetic structure.

10. A hydraulic tank assembly, characterized in that it comprises a tank (1) according to any one of claims 1 to 9.

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