Crawler maintenance oiling device

Abstract

The utility model provides a track maintenance oiling device, which is used for being installed at an oiling nozzle of an oil tank, and comprises a bearing part which is used for being arranged on the inner side of the oil tank, the bearing part is provided with a fixing piece, the fixing piece is used for being fixed on the inner wall of the oil tank, and the bearing part is provided with a first connecting port; the shielding part is used for being arranged on the outer side of the oil tank, the shielding part is used for shielding the oil injection nozzle, the shielding part is provided with a second connecting port and a connecting channel, the shielding part is arranged between the bearing part and the shielding part, the connecting channel is used for penetrating through the oil injection nozzle, and the connecting channel communicates with the first connecting port and the second connecting port; and the cover plate is arranged on the shielding part, and the cover plate is used for opening or closing the second connecting port. According to the technical scheme provided by the utility model, the problem that in the prior art, when oil is injected, an oil injection nozzle sprays oil and sprays out oil, and risks are caused to operators can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of crawler track oiling, in particular to a crawler track maintenance oiling device. Background Art

[0002] The track is one of the chassis parts of construction machinery and is a vulnerable part of construction machinery. The track needs to have a suitable tension to ensure working efficiency. Poor track tension will cause wear and tear on the lower body, sprocket and supporting roller, and may also cause the track to come off, resulting in a significant drop in working efficiency. Therefore, the track needs to be adjusted to the appropriate tightness. Currently, an oil gun is often used to insert oil into the oiling nozzle for adjusting the track to increase the tension of the chain. When loosening, it is only necessary to release the oil and rotate the oiling nozzle. However, due to the high pressure in the oil cylinder, there is a possibility of oil ejection and spraying out of the oiling nozzle when loosening the oiling nozzle, and the oiling nozzle is often in an open state, which poses a risk to the operator. Utility Model Content

[0003] The utility model provides a track maintenance oiling device to solve the problem in the prior art that when injecting oil, the oiling nozzle sprays oil and the oiling nozzle spurts out, which causes risks to operators.

[0004] The utility model provides a track maintenance oiling device, which is used to be installed at the oiling nozzle of an oil tank. The track maintenance oiling device comprises: a supporting part, which is used to be arranged on the inner side of the oil tank, the supporting part has a fixing piece, the fixing piece is used to be fixed on the inner wall of the oil tank, and the supporting part has a first connecting port; a shielding part, which is used to be arranged on the outer side of the oil tank, the shielding part is used to shield the oiling nozzle, the shielding part has a second connecting port, a connecting channel is arranged between the supporting part and the shielding part, and the connecting channel is used to pass through the oiling nozzle, and the connecting channel is respectively connected to the first connecting port and the second connecting port; and a cover plate is arranged on the shielding part, and the cover plate is used to open or close the second connecting port.

[0005] Furthermore, the supporting part also includes a supporting plate, the first connecting port is arranged on the supporting plate, the supporting part includes a plurality of fixing parts, the plurality of fixing parts are annularly arranged on the supporting plate, the fixing parts have a connecting end and an abutting end arranged oppositely, the connecting end is arranged on the supporting plate, the abutting end protrudes from the circumferential arrangement of the supporting plate, and the abutting end is used to abut against the inner wall of the oil tank.

[0006] Furthermore, the length of the abutting end extending out of the circumference of the supporting plate is adjustable.

[0007] Furthermore, the connecting end is movably provided on the support plate to adjust the length of the abutting end extending out of the support plate. A locking structure is provided between the connecting end and the support plate. The locking structure has a relatively set locking state and an unlocking state. When the locking structure is in the unlocking state, the connecting end can move relative to the support plate. When the locking structure is in the locking state, the connecting end is relatively fixed to the support plate.

[0008] Furthermore, a plurality of guide grooves are provided on the support plate, the guide grooves extending radially along the first connection port, the fixing members are provided in one-to-one correspondence with the guide grooves, the connection ends of the fixing members are movably provided in the guide grooves, and the locking structure is provided between the connection ends and the guide grooves.

[0009] Furthermore, the locking structure includes: a locking seat, which is arranged on the connecting end; a tooth-shaped structure, which is arranged on the two side walls of the guide groove, and the tooth-shaped structure extends along the extension direction of the guide groove; two locking members, which are respectively arranged on the locking seat, and the two locking members are arranged in a one-to-one correspondence with the two tooth-shaped structures, and the locking member includes a locking protrusion and an elastic member, one end of the elastic member is connected to the locking seat, and a locking protrusion is provided at the other end of the elastic member, and the locking protrusion cooperates with the tooth-shaped structure to lock, and the elastic member is used to provide elastic force to the locking protrusion so that the locking protrusion abuts against the tooth-shaped structure.

[0010] Furthermore, a slide groove is provided on the side of the shielding portion away from the supporting portion, the slide groove is provided on the outside of the second connecting port, the cover plate is movably provided in the slide groove, and the cover plate has a blocking position for blocking the second connecting port and an open position for avoiding the second connecting port.

[0011] Furthermore, the length of the connecting channel is adjustable.

[0012] Furthermore, the connecting channel includes a first sleeve and a second sleeve, one end of the first sleeve is connected to the first connecting port, one end of the second sleeve is connected to the second connecting port, and the other end of the first sleeve is threadedly connected to the other end of the second sleeve.

[0013] Furthermore, the abutting end has an abutting seat, and the size of the abutting surface of the abutting seat is larger than the size of the abutting end.

[0014] By applying the technical solution of the present invention, a fixing member is provided on the supporting portion, so that the track maintenance oiling device is firmly fixed to the inner wall of the oil tank. The shielding portion is provided on the outside of the oil tank, and the connecting channel is connected to the first connecting port of the supporting portion and the second connecting port of the shielding portion, thereby providing a channel for oil to enter the oil tank. When the cover plate opens the second connecting port, the grease gun can smoothly deliver oil into the oil tank through the second connecting port, the connecting channel, and the channel of the first connecting port. The cover plate is provided on the shielding portion to shield the oiling nozzle. When the cover plate is in the closed state, it can prevent the oiling nozzle from spraying oil and the oiling nozzle from spraying out, which poses a risk to the operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings constituting part of this application are provided to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are provided to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0016] Figure 1 The following is a schematic diagram showing the structure of the crawler track maintenance and oiling device provided by the present invention;

[0017] Figure 2 It shows a schematic structural diagram of the supporting portion and the first sleeve provided by the utility model;

[0018] Figure 3 A schematic diagram showing the side structure of the crawler track maintenance and oiling device provided by the present invention is shown;

[0019] Figure 4 Shown Figure 2 A partial enlarged view of point A in the middle.

[0020] The above drawings include the following reference numerals:

[0021] 10. Supporting part;

[0022] 11. Fixing parts;

[0023] 111, connection end;

[0024] 112, abutment end;

[0025] 1121, abutment seat;

[0026] 12. First connection port;

[0027] 13. Support plate;

[0028] 14. Locking structure;

[0029] 141, locking seat;

[0030] 142. Tooth structure;

[0031] 143. Locking member;

[0032] 1431, locking protrusion;

[0033] 1432, elastic parts;

[0034] 144, adjustment disk;

[0035] 15. Guide groove;

[0036] 20. Shielding part;

[0037] 21. Second connection port;

[0038] 22. Chute;

[0039] 23. Guide plate;

[0040] 24. Contact seat;

[0041] 30. Connecting channel;

[0042] 31. First casing;

[0043] 32. Second casing;

[0044] 40. Cover plate;

[0045] 41. Through hole;

[0046] 100. Fuel tank. DETAILED DESCRIPTION

[0047] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is in no way intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0048] like Figures 1 to 4 As shown, an embodiment of the present invention provides a track maintenance and oiling device for installation at the oiling nozzle of a fuel tank. The track maintenance and oiling device comprises a supporting portion 10, a shielding portion 20, a connecting channel 30, and a cover plate 40. The supporting portion 10 is used to be arranged on the inner side of the fuel tank 100, and the supporting portion 10 has a fixing member 11, which is used to be fixed to the inner wall of the fuel tank 100. The supporting portion 10 has a first connecting port 12; the shielding portion 20 is used to be arranged on the outer side of the fuel tank 100, and is used to shield the oiling nozzle. The shielding portion 20 has a second connecting port 21. The connecting channel 30 is arranged between the supporting portion 10 and the shielding portion 20, and is used to pass through the oiling nozzle. The connecting channel 30 is connected to the first connecting port 12 and the second connecting port 21 respectively; the cover plate 40 is arranged on the shielding portion 20, and the cover plate 40 is used to open or close the second connecting port 21.

[0049] Applying the technical solution of the present invention, by providing a fixing member 11 on the support portion 10, the track maintenance and oiling device is securely fixed to the inner wall of the oil tank 100. The shielding portion 20 is positioned outside the oil tank 100, and the connecting passage 30 communicates with the first connecting port 12 of the support portion 10 and the second connecting port 21 of the shielding portion 20, providing a channel for oil to enter the oil tank 100. When the cover plate 40 opens the second connecting port 21, the grease gun can smoothly deliver oil into the oil tank 100 through the second connecting port 21, the connecting passage 30, and the passageway of the first connecting port 12. The cover plate 40 provided on the shielding portion 20 shields the oiling nozzle. When the cover plate 40 is closed, it prevents the oiling nozzle from spraying oil, which could pose a risk to the operator.

[0050] Furthermore, the support portion 10 also includes a support plate 13, with a first connection port 12 disposed on the support plate 13. The support portion 10 includes a plurality of fixing members 11, which are arranged in a ring shape on the support plate 13. The fixing members 11 have opposing connection ends 111 and abutment ends 112. The connection ends 111 are disposed on the support plate 13, while the abutment ends 112 protrude from the circumference of the support plate 13 and are configured to abut against the inner wall of the fuel tank 100. Through this arrangement, the plurality of fixing members 11 are disposed on the support plate 13, and the abutment ends 112 abut against the inner wall of the fuel tank 100, allowing the track maintenance oiling device to be securely fixed to the fuel tank 100. The first connection port 12 provided on the support plate 13 provides a passage for a grease gun to inject oil into the oiling nozzle, allowing the oil to enter the oil cylinder smoothly.

[0051] Specifically, the length of the abutment end 112 extending from the support plate 13 in the circumferential direction is adjustable. In the embodiment of the present application, the fixing member 11 can be an elastic structure that can be retracted or the position of the connection end 111 can be adjusted, so that the length of the abutment end 112 extending from the support plate 13 in the circumferential direction is adjustable.

[0052] Through the above arrangement, the present application adopts a method of adjustable position of the connecting end 111. When the circumferential length of the abutting end 112 extending from the supporting plate 13 is adjusted to be sufficiently short, the supporting portion 10 can smoothly enter the inner side of the fuel tank 100. After entering the fuel tank, the circumferential length of the abutting end 112 extending from the supporting plate 13 is adjusted to be sufficiently long so that the abutting end 112 can smoothly abut the inner wall of the fuel tank 100. In addition, the adjustable setting of the abutting end 112 can adapt the track maintenance and oiling device to different fuel tanks, thereby improving the versatility of the device.

[0053] like Figure 1 and Figure 2As shown, the connecting end 111 is movably disposed on the supporting plate 13 to adjust the length of the abutting end 112 extending from the supporting plate 13. A locking structure 14 is disposed between the connecting end 111 and the supporting plate 13. The locking structure 14 has a locked state and an unlocked state. When the locking structure 14 is in the unlocked state, the connecting end 111 can move relative to the supporting plate 13. When the locking structure 14 is in the locked state, the connecting end 111 and the supporting plate 13 are fixed relative to each other. Through the above arrangement, when the locking structure 14 is in the unlocked state, the connecting end 111 can move relative to the supporting plate 13, and the fixing member 11 also moves relative to the supporting plate 13, so that the abutting end 112 can smoothly abut the inner wall of the fuel tank. When the locking structure 14 is in the locked state, the connecting end 111 and the supporting plate 13 are fixed relative to each other, so that the abutting end 112 can firmly abut the inner wall of the fuel tank, thereby enabling the supporting portion 10 to firmly abut the inner wall of the fuel tank, thereby enhancing the stability and reliability of the device. In addition, this adjustable and locking structure makes the device more convenient to install and disassemble, thereby improving maintenance efficiency.

[0054] like Figure 2 As shown, the support plate 13 is provided with a plurality of guide grooves 15 extending radially from the first connection port 12. The fixing members 11 are provided in a one-to-one correspondence with the guide grooves 15. The connecting end 111 of the fixing member 11 is movably disposed within the guide groove 15, and the locking structure 14 is disposed between the connecting end 111 and the guide groove 15. Through the above arrangement, the structure of the guide grooves 15 and the locking structure 14 ensures both the freedom of movement of the fixing member 11 and the stability of the fixing of the entire device to the fuel tank 100.

[0055] like Figure 4As shown, the locking structure 14 includes a locking seat 141, a toothed structure 142, and two locking members 143. The locking seat 141 is disposed on the connecting end 111; the toothed structure 142 is disposed on the two side walls of the guide slot 15, extending along the extension direction of the guide slot 15; and the two locking members 143 are disposed on the locking seat 141, one corresponding to each of the two toothed structures 142. The locking members 143 include a locking protrusion 1431 and an elastic member 1432. One end of the elastic member 1432 is connected to the locking seat 141, and the other end of the elastic member 1432 is provided with a locking protrusion 1431. The locking protrusion 1431 cooperates with the toothed structure 142 to lock. The elastic member 1432 is used to provide elastic force to the locking protrusion 1431 to cause the locking protrusion 1431 to abut against the toothed structure 142. Through the above arrangement, locking protrusion 1431 cooperates with toothed structure 142 to lock, and the elastic member 1432 acts to quickly lock and unlock, facilitating installation and removal of the device and improving maintenance efficiency. The two locking members 143 and the corresponding toothed structures 142 enhance the stability and reliability of locking structure 14, preventing connection end 111 from moving relative to support plate 13 when locking structure 14 is in the locked state, which could cause the entire device to fall off.

[0056] In an embodiment of the present application, an adjusting disk 144 is also provided on the locking seat 141, and a small hole is provided on the adjusting disk 144 to facilitate the operator to insert his fingers into the small hole, and the adjusting disk 144 is fixedly connected to the elastic member 1432. At this time, the adjusting disk 144 is pulled to drive the elastic member 1432 to move the locking protrusion 1431 in the guide groove 15, so that the connecting end 111 can move relative to the support plate 13.

[0057] like Figure 3 As shown, a slide groove 22 is provided on the side of the shielding portion 20 away from the supporting portion 10, and the slide groove 22 is provided on the outside of the second connecting port 21. The cover plate 40 is movably provided in the slide groove 22, and the cover plate 40 has a blocking position for blocking the second connecting port 21 and an open position for avoiding the second connecting port 21.

[0058] In an embodiment of the present application, a guide plate 23 is provided on the side of the shielding portion 20 away from the supporting portion 10. A slide groove 22 is provided on the guide plate 23, which enables the cover plate 40 to be movably arranged in the slide groove 22. A through hole 41 is provided on the cover plate 40. The cover plate 40 can move in the slide groove 22, and the through hole 41 is not connected to the second connecting port 21, so that the cover plate 40 blocks the second connecting port 21. The cover plate 40 can also move in the slide groove 22, and the through hole 41 is connected to the second connecting port 21, so that the cover plate 40 is in an open position that avoids the second connecting port 21. Such a configuration has a simple structure and can effectively prevent oil splashing, thereby protecting the operator.

[0059] Furthermore, the length of the connecting channel 30 is adjustable. Through the above arrangement, the device can adapt to oiling nozzles of different depths and positions, thereby improving the versatility and adaptability of the device.

[0060] Specifically, the connecting passage 30 includes a first sleeve 31 and a second sleeve 32. One end of the first sleeve 31 communicates with the first connecting port 12, one end of the second sleeve 32 communicates with the second connecting port 21, and the other end of the first sleeve 31 is threadedly connected to the other end of the second sleeve 32. This threaded connection between the first sleeve 31 and the second sleeve 32 not only allows for adjustment of the length of the connecting passage 30 but also ensures a tight and reliable connection. One end of the first sleeve 31 communicates with the first connecting port 12, while one end of the second sleeve 32 communicates with the second connecting port 21. This arrangement ensures smooth flow of oil into the cylinder.

[0061] The abutting end 112 has an abutting seat 1121, and the abutting surface of the abutting seat 1121 is larger than the abutting end 112. With this arrangement, the abutting surface of the abutting seat 1121 is larger than the abutting end 112, which increases the contact area between the abutting surface and the inner wall of the fuel tank 100 and improves the fixing strength of the entire device.

[0062] In an embodiment of the present application, a contact seat 24 is also provided on the shielding portion 20 to reduce the wear caused by direct contact between the shielding portion 20 and the oil tank 100, and to increase the contact area between the abutting surface and the inner wall of the oil tank 100, thereby enhancing the stability of the entire device.

[0063] The working principle and use process of the present invention are as follows: first, pull the adjusting disk 144 inward to slide, so that the length of the abutting end 112 extending out of the supporting plate 13 in the circumferential direction becomes shorter, so that the supporting part 10 is smoothly placed in the fuel tank 100, and then directly pull the fixing member 11 toward the end away from the first connecting port 12, so that the abutting seat 1121 of the fixing member 11 can smoothly abut against the inner wall of the fuel tank 100, and then the first sleeve 31 and the second sleeve 32 cooperate with each other, so that the supporting part 10 can play a role of connecting and supporting the shielding part 20 through the cooperation of the first sleeve 31 and the second sleeve 32, so that The shielding portion 20 and the supporting portion 10 are installed in cooperation with each other at the oiling nozzle, and the shielding portion 20 shields the opening of the oiling nozzle and at the same time plays a role of limiting and guiding the cover plate 40 through the guide plate 23, so that the cover plate 40 can play a role of shielding and protecting the oiling nozzle, preventing the oiling nozzle from splashing when it accidentally falls off and causing harm to the operator, improving the safety of the operator when adjusting the tightness of the track, and the cover plate 40 can slide between the shielding portion 20 and the outside, increasing the protection of the oiling nozzle while facilitating the connection of the oil gun with the oiling nozzle through the through hole 41, thereby improving the applicability during use.

[0064] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0065] Unless otherwise specifically stated, the relative arrangement of the parts and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to actual proportional relationships. The technology, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be considered as part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, and therefore, once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

[0066] In the description of the present invention, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0067] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0068] In addition, it should be noted that the use of words such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above words have no special meaning and therefore cannot be understood as limiting the scope of protection of this utility model.

[0069] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A crawler maintenance oiling device, used for installation at the oiling nozzle of an oil tank (100), characterized in that: The crawler track maintenance oiling device comprises: A supporting portion (10) is provided on the inner side of the oil tank (100), wherein the supporting portion (10) has a fixing member (11), wherein the fixing member (11) is fixed to the inner wall of the oil tank (100), and the supporting portion (10) has a first connecting port (12); A shielding portion (20) is provided on the outside of the oil tank (100), the shielding portion (20) is used to shield the oil filling nozzle, and the shielding portion (20) has a second connecting port (21). a connecting channel (30) disposed between the supporting portion (10) and the shielding portion (20), and the connecting channel (30) is used to penetrate the oiling nozzle, and the connecting channel (30) is communicated with the first connecting port (12) and the second connecting port (21) respectively; A cover plate (40) is provided on the shielding portion (20), and the cover plate (40) is used to open or close the second connection port (21).

2. The crawler track maintenance oiling device according to claim 1, characterized in that: The supporting portion (10) further includes a supporting plate (13), the first connecting port (12) is arranged on the supporting plate (13), the supporting portion (10) includes a plurality of fixing members (11), the plurality of fixing members (11) are annularly arranged on the supporting plate (13), the fixing members (11) have a connecting end (111) and an abutting end (112) that are arranged opposite to each other, the connecting end (111) is arranged on the supporting plate (13), the abutting end (112) protrudes from the circumferential arrangement of the supporting plate (13), and the abutting end (112) is used to abut against the inner wall of the oil tank (100).

3. The crawler track maintenance oiling device according to claim 2, characterized in that: The length of the abutting end (112) extending out of the supporting plate (13) in the circumferential direction is adjustable.

4. The crawler track maintenance oiling device according to claim 3, characterized in that: The connecting end (111) is movably arranged on the supporting plate (13) to adjust the length of the abutting end (112) extending from the supporting plate (13); a locking structure (14) is provided between the connecting end (111) and the supporting plate (13); the locking structure (14) has a relatively set locking state and an unlocking state; when the locking structure (14) is in the unlocking state, the connecting end (111) can move relative to the supporting plate (13); when the locking structure (14) is in the locking state, the connecting end (111) and the supporting plate (13) are relatively fixed.

5. The crawler track maintenance oiling device according to claim 4, characterized in that: A plurality of guide grooves (15) are provided on the supporting plate (13), and the guide grooves (15) extend radially along the first connecting port (12). The fixing member (11) and the guide grooves (15) are provided in a one-to-one correspondence, and the connecting end (111) of the fixing member (11) is movably provided in the guide groove (15), and the locking structure (14) is provided between the connecting end (111) and the guide groove (15).

6. The crawler track maintenance oiling device according to claim 5, characterized in that: The locking structure (14) comprises: A locking seat (141) is provided on the connecting end (111); a tooth-shaped structure (142) provided on two side walls of the guide groove (15), wherein the tooth-shaped structure (142) extends along an extension direction of the guide groove (15); Two locking members (143) are respectively arranged on the locking seat (141), and the two locking members (143) are arranged in a one-to-one correspondence with the two tooth-shaped structures (142). The locking member (143) includes a locking protrusion (1431) and an elastic member (1432). One end of the elastic member (1432) is connected to the locking seat (141), and the other end of the elastic member (1432) is provided with the locking protrusion (1431). The locking protrusion (1431) cooperates with the tooth-shaped structure (142) to lock, and the elastic member (1432) is used to provide elastic force to the locking protrusion (1431) so that the locking protrusion (1431) abuts against the tooth-shaped structure (142).

7. The crawler track maintenance oiling device according to claim 1, characterized in that: A sliding groove (22) is provided on a side of the shielding portion (20) away from the supporting portion (10), and the sliding groove (22) is provided on the outside of the second connecting port (21). The cover plate (40) is movably provided in the sliding groove (22), and the cover plate (40) has a blocking position for blocking the second connecting port (21) and an open position for avoiding the second connecting port (21).

8. The crawler track maintenance and oiling device according to claim 5, characterized in that: The length of the connecting channel (30) is adjustable.

9. The crawler track maintenance and oiling device according to claim 5, characterized in that: The connecting channel (30) comprises a first sleeve (31) and a second sleeve (32), one end of the first sleeve (31) is connected to the first connecting port (12), one end of the second sleeve (32) is connected to the second connecting port (21), and the other end of the first sleeve (31) is threadedly connected to the other end of the second sleeve (32).

10. The crawler track maintenance and oiling device according to claim 2, characterized in that: The abutting end (112) has an abutting seat (1121), and the size of the abutting surface of the abutting seat (1121) is larger than the size of the abutting end (112).

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