Refueling device of speed reducer and vehicle

Abstract

The utility model provides a refueling device of a speed reducer and a vehicle. The lower end of the oil filling pipe communicates with an oil tank of the speed reducer, and the oil filling pipe can freely change the length and bending deformation. The plug cover assembly is detachably installed at the upper end of the oil filling pipe and used for controlling opening and closing of an opening in the upper end of the oil filling pipe. The oil injection pipe can be stretched and bent to deform according to the requirements of operators, so that the operators can conveniently inject oil into an oil tank of the speed reducer subsequently, and the efficiency of replacing lubricating oil of the speed reducer is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle reducers, in particular to a refueling device for a reducer and a vehicle. Background Art

[0002] The automobile reducer is one of the most important parts in the automobile. Its main function is to reduce the speed, increase the output torque, and reduce the inertia of the load. In order to reduce the friction and wear between the gear transmission inside the reducer, the lubricating oil in the reducer needs to be replaced regularly to extend the service life of each component and ensure the normal operation of the equipment. The reducer oil filling port of existing vehicles is located at the horizontal position of the drive shaft output port or directly above the reducer, and the position of the oil filling port is fixed, so the reducer needs to be refueled by a special refueling tool. Although there are special refueling tools to assist in refueling, due to the limitations of the surrounding environment of the installation position of the reducer itself, there are problems such as insufficient space for the oil filling port and a deep position, which makes it more difficult for operators to fill oil into the reducer, thereby reducing the efficiency of replacing the lubricating oil of the reducer and causing inconvenience in the repair and maintenance of the reducer. Utility Model Content

[0003] In view of the above problems, the utility model is proposed to provide a refueling device and a vehicle for a reducer that overcome the above problems or at least partially solve the above problems. It can solve the problem of inconvenience in replacing lubricating oil in the reducer of existing vehicles, achieve the effect of reducing the operating difficulty of operators, and thus improve the efficiency of replacing lubricating oil in the reducer.

[0004] Specifically, the utility model provides a refueling device for a reducer, the refueling device for the reducer comprising:

[0005] The lower end of the oil filling pipe is connected to the oil tank of the reducer; the oil filling pipe is configured to be able to freely change its own length and bending deformation;

[0006] A plug cover assembly is detachably mounted on the upper end of the oil filling pipe and is used to control the opening and closing of the upper end opening of the oil filling pipe.

[0007] Optionally, the oil injection pipe comprises:

[0008] A fixed section, the lower end of which is in communication with the oil tank of the reducer; the fixed section is configured with a preset curved section having an arc or angle consistent with its installation position;

[0009] The telescopic section is in the shape of a corrugated telescopic tube; the lower end of the telescopic section is connected to the upper end of the fixed section, and the plug cover assembly is arranged at the upper end of the telescopic section.

[0010] Optionally, the refueling device of the reducer further includes:

[0011] A fixing bracket, the fixing bracket comprising a fixing plate and a clamping ring;

[0012] The clamping ring is elastic and has the same diameter as the fixing section; a notch is provided on the clamping ring, and the width of the notch is greater than a preset width value and smaller than the diameter of the fixing section, so that the fixing section can be installed in the clamping ring;

[0013] The fixing plate is fixedly mounted on the reducer, and the clamping ring is fixedly mounted on the fixing plate.

[0014] Optionally, the telescopic section has a double-layer structure; the outer layer of the telescopic section is a first bellows, and the inner layer is a second bellows; the first bellows has plasticity so that the telescopic section remains unchanged after bending; the second bellows is a rubber bellows.

[0015] Optionally, the telescopic section has a plurality of crest rings; each of the crest rings is provided with a support ring; and the support ring is fixedly connected to the crest ring.

[0016] Optionally, the plug cover assembly comprises:

[0017] The plug cover seat is a columnar structure penetrating from top to bottom, and the upper end of the plug cover seat is an oil filling port; the plug cover seat is inserted into the upper end of the oil filling pipe so that the oil filling port is connected with the upper end opening of the oil filling pipe;

[0018] A plug cover body is detachably inserted into the oil filling port.

[0019] Optionally, a filter screen is arranged inside the plug cover seat; the filter screen is used to filter impurities in the oil.

[0020] Optionally, the plug cover assembly further comprises:

[0021] A pipe clamp, the pipe clamp is annular and has a notch; the two ends of the pipe clamp located at the notch are folded outward and extended to form two symmetrical folding rods; the pipe clamp sleeve is arranged at the upper end of the oil filling pipe, so that when the two folding rods are close to each other, the oil filling pipe is clamped to the plug cover seat; a clamp block is arranged on the outer side of each of the two folding rods; the distance between the two clamp blocks is greater than the distance between the two folding rods;

[0022] A limit plate is arranged on the reducer; a limit hole is arranged on the limit plate; the width of the limit hole is greater than the sum of the thicknesses of the two clamping blocks and less than the distance between the two folding rods.

[0023] Optionally, the refueling device of the reducer further includes:

[0024] An oil filling adapter, the lower end of which is threadedly connected to the reducer; the upper end of which is sealingly and rotatably connected to the lower end of the oil filling pipe.

[0025] The utility model also provides a vehicle, the vehicle comprising a reducer and any one of the above-mentioned reducer refueling pipe devices;

[0026] The reducer is provided with an oil tank; the lower end of the oil filling pipe is connected with the oil tank.

[0027] In the refueling device of the reducer of the utility model, since the oil filling pipe can change its own length and bend deformation, the oil filling pipe has a retracted state and an expanded state. In the retracted state, the oil filling pipe has the shortest length and fits the surface of the reducer. In the expanded state, the length of the oil filling pipe is stretched and increased, and it can be bent as needed. Therefore, the oil filling pipe can be stretched and bent according to the needs of the operator, so that the operator can facilitate the subsequent operation of filling oil into the oil tank of the reducer, thereby improving the efficiency of replacing the lubricating oil of the reducer.

[0028] Based on the detailed description of the specific embodiments of the present invention in combination with the accompanying drawings below, those skilled in the art will become more aware of the above and other purposes, advantages and features of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Hereinafter, some specific embodiments of the present invention will be described in detail in an exemplary and non-limiting manner with reference to the accompanying drawings. The same reference numerals in the accompanying drawings indicate the same or similar components or parts. It should be understood by those skilled in the art that these drawings are not necessarily drawn to scale. In the accompanying drawings:

[0030] Figure 1 It is a schematic structural diagram of a refueling device for a reducer according to an embodiment of the utility model;

[0031] Figure 2 It is a schematic structural diagram of a refueling pipe in a refueling device of a reducer according to an embodiment of the utility model in a retracted state;

[0032] Figure 3 It is a schematic structural diagram of an oil filling pipe in an oil filling device of a reducer according to an embodiment of the utility model in an open state;

[0033] Figure 4 The figure is a schematic exploded view of a refueling device for a reducer according to an embodiment of the utility model. DETAILED DESCRIPTION

[0034] Refer to the following Figures 1 to 4To describe the refueling device and vehicle of the reducer of the embodiment of the utility model. In the description of this embodiment, it should be understood that the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features, that is, include one or more of the features. In the description of the utility model, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. When a feature "includes or contains" one or some of the features it covers, unless otherwise specifically described, this indicates that other features are not excluded and other features may be further included.

[0035] Unless otherwise clearly specified and limited, the terms "set", "install", "connect", "connect", "fix", "couple" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. A person of ordinary skill in the art should be able to understand the specific meanings of the above terms in the present utility model according to the specific circumstances.

[0036] In addition, in the description of this embodiment, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them. That is, in the description of this embodiment, the first feature being "above", "above", and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature being "below", "below", or "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0037] In the description of the present embodiment, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0038] Figure 1 This is a schematic diagram of the reducer's oiling device. Figure 1As shown, and refer to Figures 2 to 4 The embodiment of the utility model provides a refueling device for a reducer, and the refueling device for the reducer includes an oil filling pipe 100 and a plug cover assembly 200. The lower end of the oil filling pipe 100 is connected to the oil tank of the reducer 400. The oil filling pipe 100 is configured to be able to freely change its own length and bend deformation. The plug cover assembly 200 can be detachably installed on the upper end of the oil filling pipe 100, and is used to control the opening and closing of the upper end opening of the oil filling pipe 100.

[0039] Specifically, the oil filling tube 100 can change its own length and bending deformation settings, so that the oil filling tube 100 can be stretched and bent according to the needs of the operator, so as to facilitate the operator's subsequent oil filling operation into the oil tank of the reducer 400. Further, the oil filling tube 100 has a retracted state and an unfolded state. The oil filling tube 100 has the shortest length in the retracted state and fits the surface of the reducer 400. The length of the oil filling tube 100 is stretched and increased in the unfolded state, and it can be bent as needed. Further, the plug cover assembly 200 closes the upper end opening of the oil filling tube 100 when the oil filling tube 100 is in the retracted state, and opens the upper end opening of the oil filling tube 100 when the oil filling tube 100 is in the unfolded state.

[0040] During operation, the plug cover assembly 200 initially closes the oil filling pipe 100 and the oil filling pipe 100 is in a retracted state. When the reducer 400 needs to be refueled, the operator first stretches and bends the oil filling pipe 100 outward, so that the oil filling pipe 100 is stretched and bent from the retracted state to the unfolded state, so that the upper end of the oil filling pipe 100 is close to the operator's side, so as to facilitate the operator's subsequent oil filling operation. After the oil filling pipe 100 is stretched and bent to a preset position, the plug cover assembly 200 is removed from the oil filling pipe 100, so that the upper end of the oil filling pipe 100 is opened, and the operator injects lubricating oil from the oil filling pipe 100 into the oil tank of the reducer 400.

[0041] In some embodiments of the present invention, Figure 1 As shown, the oil filling pipe 100 includes a fixed section 110 and a telescopic section 120. The lower end of the fixed section 110 is connected to the oil tank of the reducer 400, and the fixed section 110 is configured with a preset curved section with an arc or angle consistent with its installation position. The telescopic section 120 is in the shape of a corrugated telescopic tube, the lower end of the telescopic section 120 is connected to the upper end of the fixed section 110, and the plug cover assembly 200 is arranged at the upper end of the telescopic section 120.

[0042] Specifically, the fixed section 110 does not participate in the stretching and bending deformation, and the material is made of steel pipe. Furthermore, the fixed section 110 has a preset bending section, which can make it fit with the installation position, so as to improve the stability of the installation of the fixed section 110, thereby raising the stability of the oil filling pipe 100 on the reducer 400. Furthermore, the preset bending section can be set according to the installation position of the reducer 400. In order to facilitate the processing and manufacturing of the fixed section 110, the fixed section 110 can be set to be an inclined section in the middle and vertical sections extending upward and downward at both ends of the inclined section, so that the fixed section 110 can be installed on reducers 400 of different models.

[0043] Specifically, the lower end of the telescopic section 120 is detachably sealed and connected to the upper end of the fixed end to facilitate the replacement of the telescopic section 120. Furthermore, the telescopic section 120 adopts the configuration of a bellows telescopic tube, so that the oil filling pipe 100 has the characteristics of withstanding a wide range of twisting, deformation and deflection, thereby increasing the maneuverability of the oil filling pipe 100. At the same time, the bellows telescopic tube can reduce noise and pressure shock by absorbing the pressure waves of the liquid flow inside the pipeline during operation. The bellows telescopic tube is also highly replaceable and can be repaired and replaced without disassembling the entire oil filling pipe 100, greatly reducing maintenance costs and downtime.

[0044] In some embodiments of the present invention, Figure 1 and Figure 2 As shown, the refueling device of the reducer also includes a fixing bracket 300. The fixing bracket 300 includes a fixing plate 320 and a clamping ring 310. The clamping ring 310 is elastic and has the same diameter as the fixing section 110. A notch is provided on the clamping ring 310, and the width of the notch is greater than a preset width value and smaller than the diameter of the fixing section 110, so that the fixing section 110 can be installed in the clamping ring 310. The fixing plate 320 is fixedly installed on the reducer 400, and the clamping ring 310 is fixedly installed on the fixing plate 320.

[0045] Specifically, the fixing plate 320 and the clamping ring 310 are made by integral molding, and the fixing plate 320 is detachably fixed to the housing of the reducer 400 by screws. Furthermore, the fixing plate 320 and the clamping plate are both made of stainless steel sheets and have certain deformation recovery characteristics. Furthermore, when the fixing section 110 needs to be clamped into the clamping ring 310, the gap needs to be enlarged by the deformation of the clamping ring 310 itself in order for the fixing section 110 to enter the clamping ring 310 and complete the clamping. Therefore, the preset width value is the minimum value of the gap width that the fixing section 110 can be clamped with the clamping ring 310 through the deformation of the clamping ring 310. The setting of the gap width being smaller than the diameter of the fixing section 110 can prevent the fixing section 110 from detaching from the clamping ring 310 and losing the function of fixing the oil filling pipe 100.

[0046] In some embodiments of the present invention, Figure 1 As shown, the telescopic section 120 has a double-layer structure. The outer layer of the telescopic section 120 is a first bellows, and the inner layer is a second bellows. The first bellows has plasticity so that the telescopic section 120 remains unchanged after being bent. The second bellows is a rubber bellows.

[0047] Specifically, the plasticity can make the telescopic section 120 have a tendency to maintain the existing state, so that after the telescopic section 120 is stretched or bent to a certain deformation, the telescopic section 120 can maintain the state by itself within a certain period of time, so that it is convenient for the operator to introduce oil into the oil filling pipe 100. Further, the first bellows is generally made of high-quality stainless steel material, which has the advantages of corrosion resistance, high temperature resistance, and wear resistance, so as to increase the service life and reliability of the oil filling pipe 100. Further, the rubber material can have the characteristics of oil corrosion resistance, and the second bellows is a rubber bellows, which can increase the elasticity of the telescopic section 120. Further, the first bellows and the second bellows have the same structure and shape, the first bellows is sleeved on the outside of the second bellows, and the two are tightly matched.

[0048] In some embodiments of the present invention, Figure 1 and Figure 4 As shown, the telescopic section 120 has a plurality of crest rings. A support ring is provided on each crest ring. The support ring is fixedly connected to the crest ring. Specifically, since the telescopic section 120 is a bellows structure, the telescopic section 120 has a crest ring and a trough ring. The support ring can support the crest ring, thereby preventing the telescopic section 120 from being squeezed and deformed, and can increase the strength of the telescopic section 120 itself, so as to increase the service life of the oil filling pipe 100. Further, the support ring is fixedly mounted on the crest ring of the second bellows. Further, an annular hole groove is provided at the crest ring of the second bellows, and the support ring is inserted in the annular hole groove. Further, the support ring is a metal ring.

[0049] In some embodiments of the present invention, Figure 1 and Figure 4 As shown, the plug cover assembly 200 includes a plug cover seat 210 and a plug cover body 220. The plug cover seat 210 is a columnar structure that penetrates from top to bottom, and the upper end of the plug cover seat 210 is an oil filling port. The plug cover seat 210 is inserted into the upper end of the oil filling pipe 100 so that the oil filling port is connected to the upper end opening of the oil filling pipe 100. The plug cover body 220 can be detachably inserted into the oil filling port.

[0050] Specifically, the plug cover body 220 controls the opening and closing of the oil filling port, thereby controlling the opening and closing of the upper end opening of the oil filling pipe 100. Further, the plug cover body 220 is sealed with the plug cover seat 210, and the plug cover seat 210 is sealed with the oil filling pipe 100. Further, the plug cover seat 210 is detachably inserted on the oil filling pipe 100, so that the plug cover seat 210 can be replaced separately.

[0051] In this embodiment, a flared structure is provided at the upper end of the plug cover seat 210, so that the oil filling port is in a funnel shape with a larger top and a smaller bottom. The flared structure is provided to facilitate the injection of oil into the oil filling port.

[0052] In some embodiments of the present invention, Figure 1 and Figure 2 As shown, a filter screen is provided in the plug cover seat 210, and the filter screen is used to filter impurities in the oil. Specifically, the filter screen can filter out impurities in the oil added to the reducer 400, thereby preventing the impurities from damaging the reducer 400, thereby protecting the reducer 400. Furthermore, the filter screen is generally a filter element device.

[0053] In some embodiments of the present invention, Figure 1 and Figure 4 As shown, the plug cover assembly 200 also includes a tube clamp 230 and a limiting plate 240. The tube clamp 230 is annular and has a notch. The two ends of the tube clamp 230 located at the notch are folded outward and extended to form two symmetrical folding rods 231. The tube clamp 230 is sleeved on the upper end of the oil filling pipe 100 so that the oil filling pipe 100 clamps the plug cover seat 210 when the two folding rods 231 are close to each other. A clamping block is provided on the outer side of the two folding rods 231, and the distance between the two clamping blocks is greater than the distance between the two folding rods 231. The limiting plate 240 is provided on the reducer 400, and a limiting hole 241 is provided on the limiting plate 240. The width of the limiting hole 241 is greater than the sum of the thicknesses of the two clamping blocks and less than the distance between the two folding rods 231.

[0054] Specifically, the tube clamp 230 has elasticity so that the clamp has a tendency to return to the initial state. Further, when the two folding rods 231 are close to each other, the diameter of the tube clamp 230 can be reduced, and conversely, when the two folding rods 231 are away from each other, the straightness of the tube clamp 230 can be increased. Further, the clamp block is a wedge-shaped block, the top thickness of the wedge-shaped block is less than the tail thickness, and the inclined surface of the wedge-shaped block contacts the inner wall of the limiting hole 241, so that when the two clamp blocks are inserted into the limiting hole 241, the limiting hole 241 squeezes the two clamp blocks toward the middle. When the clamp blocks pass over the limiting hole 241, the folding rod 231 recovers and drives the two clamp blocks away, so that the distance between the two clamp blocks is greater than the width of the limiting hole 241, so that the clamp blocks cannot be directly pulled out from the limiting hole 241, so as to achieve the locking of the tube clamp 230.

[0055] Furthermore, in the initial state, the diameter of the tube clamp 230 is the same as the diameter of the upper end of the oil filling tube 100. The setting that the width of the limiting hole 241 is smaller than the distance between the two folding rods 231 can make the two folding rods 231 approach each other when the tube clamp 230 is inserted into the limiting hole 241 in reverse, so that the diameter of the tube clamp 230 can be contracted, thereby playing a clamping and contracting role on the oil filling tube 100, and then the oil filling tube 100 clamps the part of the plug cover seat 210 inserted into the oil filling tube 100, thereby improving the sealing of the plug cover seat 210 on the oil filling tube 100. Furthermore, the limiting plate 240 is fixedly installed on the reducer 400, and the limiting plate 240 and the tube clamp 230 are an integrally formed structure, which can improve the stability and sealing of the oil filling tube 100 when the oil filling tube 100 is in the retracted state.

[0056] During operation, the operator squeezes the two blocks toward the middle to pull them out of the limiting holes 241. After the blocks are pulled out of the limiting holes 241, the telescopic section 120 of the oil filling pipe 100 is no longer restricted, so the telescopic end can be stretched and bent as needed.

[0057] In some embodiments of the present invention, Figure 1 and Figure 4 As shown, the refueling device of the reducer further includes an oil injection adapter 500, the lower end of which is threadedly connected to the reducer 400. The upper end of the oil injection adapter 500 is sealed and rotatably connected to the lower end of the oil injection pipe 100.

[0058] Specifically, the lower end of the fixed section 110 is rotatably connected to the oil filling adapter 500, and a seal is maintained between the two by a sealing ring. Further, the fixed section 110 is rotatably arranged, which can further increase the flexibility of the oil filling pipe 100.

[0059] In some embodiments of the present invention, Figure 1 and Figure 4 As shown, a sealing groove is provided on the inner surface of the plug cover seat 210, and a sealing ring is provided on the outer surface of the plug cover body 220. The provision of the sealing ring can increase the sealing between the plug cover seat 210 and the plug cover body 220. Further, the plug cover seat 210 and the plug cover body 220 are connected by a chain.

[0060] The embodiment of the utility model further provides a vehicle, the vehicle comprising a reducer 400 and a refueling pipe device for the reducer 400 according to any one of the above embodiments. An oil tank is arranged on the reducer 400. The lower end of the oil filling pipe 100 is connected to the oil tank.

[0061] At this point, those skilled in the art should recognize that, although multiple exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications that conform to the principles of the present invention can still be directly determined or derived from the contents disclosed in the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and recognized as covering all such other variations or modifications.

Claims

1. A refueling device for a reducer, characterized in that: include: An oil filling pipe, the lower end of which is connected to the oil tank of the reducer; the oil filling pipe is configured to be able to freely change its own length and bending deformation; A plug cover assembly is detachably mounted on the upper end of the oil filling pipe and is used to control the opening and closing of the upper end opening of the oil filling pipe.

2. The refueling device for the reducer according to claim 1, characterized in that: The oil injection pipe comprises: A fixed section, the lower end of which is in communication with the oil tank of the reducer; the fixed section is configured with a preset curved section having an arc or angle consistent with its installation position; The telescopic section is in the shape of a corrugated telescopic tube; the lower end of the telescopic section is connected to the upper end of the fixed section, and the plug cover assembly is arranged at the upper end of the telescopic section.

3. The refueling device for the reducer according to claim 2, characterized in that: Also includes: A fixing bracket, the fixing bracket comprising a fixing plate and a clamping ring; The clamping ring is elastic and has the same diameter as the fixing section; a notch is provided on the clamping ring, and the width of the notch is greater than a preset width value and smaller than the diameter of the fixing section, so that the fixing section can be installed in the clamping ring; The fixing plate is fixedly mounted on the reducer, and the clamping ring is fixedly mounted on the fixing plate.

4. The refueling device for the reducer according to claim 2, characterized in that: The telescopic section has a double-layer structure; the outer layer of the telescopic section is a first bellows, and the inner layer is a second bellows; the first bellows has plasticity so that the telescopic section remains unchanged after bending; the second bellows is a rubber bellows.

5. The refueling device for the reducer according to claim 2, characterized in that: The telescopic section is provided with a plurality of crest rings; each of the crest rings is provided with a support ring; and the support ring is fixedly connected to the crest ring.

6. The refueling device for a reducer according to claim 1, characterized in that: The plug cover assembly comprises: The plug cover seat is a columnar structure penetrating from top to bottom, and the upper end of the plug cover seat is an oil filling port; the plug cover seat is inserted into the upper end of the oil filling pipe so that the oil filling port is connected with the upper end opening of the oil filling pipe; A plug cover body is detachably inserted into the oil filling port.

7. The refueling device for a reducer according to claim 6, characterized in that: A filter screen is arranged inside the plug cover seat; the filter screen is used for filtering impurities in the oil.

8. The refueling device for a reducer according to claim 6, characterized in that: The plug cover assembly also includes: A pipe clamp, the pipe clamp is annular and has a notch; the two ends of the pipe clamp located at the notch are folded outward and extended to form two symmetrical folding rods; the pipe clamp sleeve is arranged at the upper end of the oil filling pipe, so that when the two folding rods are close to each other, the oil filling pipe is clamped to the plug cover seat; a clamp block is arranged on the outer side of each of the two folding rods; the distance between the two clamp blocks is greater than the distance between the two folding rods; A limit plate is arranged on the reducer; a limit hole is arranged on the limit plate; the width of the limit hole is greater than the sum of the thicknesses of the two clamping blocks and less than the distance between the two folding rods.

9. The refueling device for a reducer according to claim 1, characterized in that: Also includes: An oil filling adapter, the lower end of which is threadedly connected to the reducer; the upper end of which is sealingly and rotatably connected to the lower end of the oil filling pipe.

10. A vehicle, characterized in that: It comprises a reducer and a reducer refueling pipe device according to any one of claims 1 to 9; The reducer is provided with an oil tank; the lower end of the oil filling pipe is connected with the oil tank.

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