Oil delivery pipe limiting mechanism and engineering machinery

Abstract

The oil delivery pipe limiting mechanism comprises a tool box and an oil delivery pipe, an opening is formed in the side wall of the tool box, a storage space is formed in the tool box, an oil gun is arranged outside the tool box, the oil delivery pipe penetrates through the opening, and the oil delivery pipe is arranged in the storage space. One end of the oil delivery pipe is arranged in the storage space, the other end of the oil delivery pipe is connected with the oil gun, and the oil delivery pipe can be pulled out of the tool box from the opening and withdrawn back to the storage space; a rolling wheel type limiting mechanism is arranged on the side, close to the interior of the tool box or the side, close to the exterior of the tool box, of the opening, the rolling wheel type limiting mechanism comprises at least two rotatable rolling wheels, and the oil conveying pipe penetrates through the space between the at least two rolling wheels. The oil delivery pipe is reasonable in structural design, the friction resistance of the oil delivery pipe in the extending and retracting process can be reduced, and the oil can be butter.

Description

Technical Field

[0001] This utility model relates to the field of engineering machinery technology, and in particular to an oil delivery pipe limiting mechanism and engineering machinery. Background Technology

[0002] In the field of construction machinery, lubrication of rotating and relatively rotating components is a crucial factor in ensuring the normal operation of equipment. Grease, as a lubricating medium, is commonly used to reduce wear between mechanical parts. However, the current process of using and retrieving grease guns presents several inconveniences. Specifically, the grease gun must be manually pulled to the designated working position during use, and manually returned to its storage position when not in use. During this process, frequent friction occurs between the grease delivery tube and the limiting mechanism. (See also...) Figure 3 The existing fixed limiting mechanism includes existing bolts (6) and existing nuts (8), and an existing grease delivery tube (7) passes between the two existing bolts (6).

[0003] The existing limiting mechanism for grease delivery pipes uses a fixed structure, with bolts used for limiting movement. These bolts are secured with nuts, preventing rotation. This design has the following problems:

[0004] 1. High friction: The friction between the grease delivery pipe and the limit bolt is relatively high during the extension and retraction process. This not only increases the labor intensity of the operator, but may also lead to accelerated wear of the grease delivery pipe and reduce its service life.

[0005] 2. Risk of nut loosening: Due to the tendency of bolts to rotate during long-term friction, the nut may loosen or even fall off, which will affect the reliability of the limit mechanism. Utility Model Content

[0006] The purpose of this utility model is to provide a grease delivery tube limiting mechanism and engineering machinery to solve the problems of wear and inconvenience caused by excessive friction of the grease delivery tube during the use and recycling of existing grease guns, as well as the problem of the nut loosening and falling off due to friction rotation of the limiting bolt.

[0007] To achieve the above objectives, the present invention provides an oil delivery pipe limiting mechanism, comprising a toolbox and an oil delivery pipe. The toolbox has an opening on its side wall, a storage space inside the toolbox, and an oil gun outside the toolbox. The oil delivery pipe passes through the opening, with one end of the oil delivery pipe positioned in the storage space and the other end connected to the oil gun. The oil delivery pipe can be pulled outward from the opening to the outside of the toolbox and retracted inward to the storage space. A roller-type limiting mechanism is provided on the side of the opening near the inside of the toolbox or near the outside of the toolbox. The roller-type limiting mechanism includes at least two rotatable rollers, and the oil delivery pipe passes between at least two of the rollers. The at least two rollers constrain the oil delivery pipe, and rolling friction can occur between the rollers and the oil delivery pipe.

[0008] Furthermore, a mounting bracket is provided on one side edge of the opening, the mounting bracket is bent toward the inside of the toolbox or toward the outside of the toolbox, and the roller-type limiting mechanism is mounted on the mounting bracket.

[0009] Furthermore, the roller-type limiting mechanism also includes two bolts and two nuts. One end of the two bolts passes through the mounting bracket and is connected and fixed to the two nuts respectively. The rollers are rotatably mounted on the two bolts respectively.

[0010] Furthermore, the number of rollers includes four, wherein two of the rollers are distributed sequentially along the length of one of the bolts, and the other two rollers are distributed sequentially along the length of the other bolt, and the oil delivery pipe is located between the four rollers.

[0011] Furthermore, the end of the roller furthest from the oil delivery pipe is disc-shaped, and the end of the roller closest to the oil delivery pipe is cylindrical. The diameter of the disc-shaped end of the roller is larger than the diameter of the cylindrical end.

[0012] Furthermore, the other ends of the two bolts pass through the connecting bracket, and the other ends of the two bolts are respectively provided with bolt heads. The four rollers are located between the mounting bracket and the connecting bracket, and the connecting bracket is connected and fixed to the side wall of the toolbox.

[0013] Furthermore, the two bolts are distributed vertically, arranged in parallel, and their lengths extend horizontally.

[0014] Furthermore, the toolbox is provided with a handrail assembly on the top, which can be used to place the oil gun.

[0015] Furthermore, the oil delivery pipe is a grease delivery pipe, the oil gun is a grease gun, and one end of the oil delivery pipe is connected to a grease supply device via a grease pump.

[0016] This utility model also provides an engineering machinery, including an engineering machinery body, and an oil delivery pipe limiting mechanism as described in any of the above technical solutions, wherein the oil delivery pipe limiting mechanism is disposed on the engineering machinery body.

[0017] In summary, the application of the technical solution of this utility model has the following beneficial effects: The structure of this utility model is reasonable. (1) By setting up a toolbox and an oil delivery pipe, the side wall of the toolbox is provided with an opening, the inside of the toolbox is provided with a storage space, the outside of the toolbox is provided with an oil gun, the oil delivery pipe passes through the opening, one end of the oil delivery pipe is set in the storage space, and the other end of the oil delivery pipe is connected to the oil gun. The oil delivery pipe can be pulled out from the opening to the outside of the toolbox and back into the storage space. Thus, when the oil gun is in use, it can be manually pulled to the designated working position. At this time, the oil delivery pipe will be pulled out from the opening to the outside of the toolbox. When the oil gun is idle, it can be manually returned to the storage position. At this time, the oil delivery pipe will be returned from the opening to the storage space. (2) A roller-type limiting mechanism is provided on one side of the toolbox near the inside or one side of the toolbox. The roller-type limiting mechanism includes at least two rotatable rollers, and the oil delivery pipe passes between the at least two rollers. The at least two rollers form a limiting constraint on the oil delivery pipe, and rolling friction can be generated between the rollers and the oil delivery pipe. Thus, the oil delivery pipe can be limited by at least two rollers. Due to the introduction of rolling elements (rollers), the frictional resistance of the oil delivery pipe during the extension and retraction process can be reduced by replacing the traditional sliding friction with rolling friction. From this analysis, it can be seen that compared with the prior art, this technical solution introduces rolling elements (rollers) into the limiting mechanism, and reduces the frictional resistance of the oil delivery pipe during the extension and retraction process by replacing the traditional sliding friction with rolling friction. The oil mentioned here can be grease. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0019] Figure 2 This is a three-dimensional structural diagram of the roller-type limiting mechanism of this utility model;

[0020] Figure 3 This is a three-dimensional structural diagram of a fixed limiting mechanism in the prior art;

[0021] Explanation of reference numerals in the attached drawings: Toolbox (1), oil delivery pipe (2), grease gun (3), roller-type limiting mechanism (4), handrail assembly (5); opening (101), storage space (102), mounting bracket (103), connecting bracket (104); roller (401), bolt (402), nut (403), bolt head (404). Existing bolt (6), existing grease delivery pipe (7), existing nut (8). Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model, but this does not constitute a limitation on the scope of protection of the present utility model.

[0023] In this utility model, for clearer description, the following explanation is provided: The observer faces the attached... Figure 1 When observing, the observer above is designated as "up" and the observer below as "down." It should be noted that the terms "front end," "rear end," "left side," "right side," "middle," "above," and "below," etc., used in this document to indicate orientation or positional relationships are based on the accompanying drawings and are solely for the purpose of clearly describing this utility model. They do not indicate or imply that the structure or component referred to must have a specific orientation or be constructed in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," "third," and "fourth" are used only for the purpose of clarity or simplification of description and should not be construed as indicating or implying relative importance or quantity.

[0024] See Figures 1 to 2This embodiment provides an oil delivery pipe limiting mechanism, including a toolbox 1 and an oil delivery pipe 2. The side wall of the toolbox 1 is provided with an opening 101, the inside of the toolbox 1 is provided with a storage space 102, and the outside of the toolbox 1 is provided with an oil gun 3. The oil delivery pipe 2 passes through the opening 101, one end of the oil delivery pipe 2 is located in the storage space 102, and the other end of the oil delivery pipe 2 is connected to the oil gun 3. The oil delivery pipe 2 can be pulled out from the opening 101 to the outside of the toolbox 1 and retracted inward to the storage space 102. A roller-type limiting mechanism 4 is provided on the side of the opening 101 near the inside of the toolbox 1 or on the side near the outside of the toolbox 1. The roller-type limiting mechanism 4 includes at least two rotatable rollers 401. The oil delivery pipe 2 passes between at least two rollers 401, and the at least two rollers 401 form a limiting constraint on the oil delivery pipe 2. The rollers 401 and the oil delivery pipe 2 can generate rolling friction. Function: (1) By setting up a toolbox and an oil delivery pipe, the side wall of the toolbox is provided with an opening, the inside of the toolbox is provided with a storage space, the outside of the toolbox is provided with an oil gun, the oil delivery pipe passes through the opening, one end of the oil delivery pipe is set in the storage space, and the other end of the oil delivery pipe is connected to the oil gun. The oil delivery pipe can be pulled out from the opening to the outside of the toolbox and back into the storage space. Thus, when the oil gun is in use, it can be manually pulled to the designated working position. At this time, the oil delivery pipe will be pulled out from the opening to the outside of the toolbox. When the oil gun is idle, it can be manually returned to the storage position. At this time, the oil delivery pipe will be returned from the opening to the storage space. (2) A roller-type limiting mechanism is provided on one side of the toolbox near the inside or one side of the toolbox. The roller-type limiting mechanism includes at least two rotatable rollers, and the oil delivery pipe passes between the at least two rollers. The at least two rollers form a limiting constraint on the oil delivery pipe, and rolling friction can be generated between the rollers and the oil delivery pipe. Thus, the oil delivery pipe can be limited by at least two rollers. Due to the introduction of rolling elements (rollers), the frictional resistance of the oil delivery pipe during the extension and retraction process can be reduced by replacing the traditional sliding friction with rolling friction. From this analysis, it can be seen that compared with the prior art, this technical solution introduces rolling elements (rollers) into the limiting mechanism, and reduces the frictional resistance of the oil delivery pipe during the extension and retraction process by replacing the traditional sliding friction with rolling friction. The oil mentioned here can be grease.

[0025] Specifically, a mounting bracket 103 is provided on one side edge of the opening 101. The mounting bracket 103 is bent inward toward the toolbox 1 or outward toward the toolbox 1, and the roller-type limiting mechanism 4 is mounted on the mounting bracket 103. Function: The mounting bracket 103 is provided to enable the installation of the roller-type limiting mechanism 4, thereby facilitating the alignment of the roller-type limiting mechanism 4 with the opening 101.

[0026] Specifically, the roller-type limiting mechanism 4 also includes two bolts 402 and two nuts 403. One end of each bolt 402 passes through the mounting bracket 103 and is connected and fixed to the two nuts 403 respectively. Rollers 401 are rotatably mounted on each of the two bolts 402. Function: After the bolts pass through the mounting bracket, they are fixed with nuts, which facilitates the rotation of the rollers 401.

[0027] Specifically, there are four rollers 401. Two rollers 401 are distributed sequentially along the length of one bolt 402, and the other two rollers 401 are distributed sequentially along the length of the other bolt 402. The oil delivery pipe 2 is located between the four rollers 401. Function: After the bolts pass through the mounting bracket, they are fixed with nuts, and two rollers are added to each bolt (one on the left and one on the right), for a total of four rollers to form a limiting constraint on the oil delivery pipe. The four rollers can better limit the oil delivery pipe.

[0028] Specifically, the end of roller 401 furthest from oil delivery pipe 2 is disc-shaped, and the end of roller 401 closest to oil delivery pipe 2 is cylindrical. The diameter of the disc-shaped end of roller 401 is larger than the diameter of the cylindrical end. Function: This allows the upper and lower sides of oil delivery pipe 2 to be limited and constrained by the cylindrical end of roller 401, while the left and right sides can be limited and constrained by the disc-shaped end of roller 401.

[0029] Specifically, the other ends of the two bolts 402 pass through the connecting bracket 104, and each of the other ends of the two bolts 402 is provided with a bolt head 404. Four rollers 401 are located between the mounting bracket 103 and the connecting bracket 104. The connecting bracket 104 is connected and fixed to the side wall of the toolbox 1. Function: The connecting bracket 104 makes it easier to support and install the two bolts 402.

[0030] Specifically, the two bolts 402 are distributed vertically and are arranged in parallel, with their lengths extending horizontally. Function: The parallel arrangement of the two bolts 402 effectively ensures axial parallelism between the rollers 401.

[0031] Specifically, the toolbox 1 has a handle assembly 5 on top, which allows the oil gun 3 to be placed. Function: The handle assembly 5 facilitates the placement of the oil gun 3.

[0032] Specifically, oil delivery pipe 2 is a grease delivery pipe, and grease gun 3 is a grease gun. One end of oil delivery pipe 2 is connected to the grease supply device via a grease pump. Function: The grease pump provides power so that grease can be delivered from the grease supply device to the grease delivery pipe and the grease gun. Of course, depending on different needs, grease can be replaced with other oils.

[0033] This utility model also provides an engineering machinery, including the engineering machinery body and the oil delivery pipe limiting mechanism of any of the above-mentioned technical solutions, wherein the oil delivery pipe limiting mechanism is disposed on the engineering machinery body. Function: The oil delivery pipe limiting mechanism of this technical solution can be widely used in excavators and other engineering machinery equipment that require the use of oil guns, and has good versatility and applicability.

[0034] The core technological improvement of this utility model is to replace the traditional fixed limiting bolt with a roller limiting mechanism, forming a roller-type oil delivery pipe limiting mechanism.

[0035] Improvement results:

[0036] 1. Structural optimization: By introducing a rolling limiting mechanism, the problem of inconvenient operation caused by excessive friction during the use and recycling of oil delivery pipes is effectively solved.

[0037] 2. Improved ease of operation: Operators do not need to apply excessive pulling or pushing force when using the oil gun, reducing labor intensity.

[0038] 3. Performance Improvement: The rolling limit mechanism effectively reduces the wear of the oil delivery pipe and extends its service life; at the same time, it avoids the risk of the nut loosening and falling off due to friction rotation, thus improving the reliability of the limit mechanism.

[0039] 4. Functional Expansion: This technical solution is not only applicable to the upgrading and transformation of existing equipment, but can also serve as a technical reserve to provide a reference for the optimized design of future engineering machinery products.

[0040] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications are also considered to be within the protection scope of this utility model.

Claims

1. An oil delivery pipe limiting mechanism, comprising a toolbox (1) and an oil delivery pipe (2), characterized in that: The toolbox (1) has an opening (101) on its side wall, a storage space (102) inside, and an oil gun (3) outside. An oil delivery pipe (2) passes through the opening (101), with one end of the pipe located in the storage space (102) and the other end connected to the oil gun (3). The oil delivery pipe (2) can be pulled outwards from the opening (101) to the outside of the toolbox (1) and retracted inwards. The storage space (102) is provided with a roller-type limiting mechanism (4) on the side of the opening (101) near the inside of the toolbox (1) or on the side near the outside of the toolbox (1). The roller-type limiting mechanism (4) includes at least two rotatable rollers (401). The oil delivery pipe (2) passes between at least two of the rollers (401). The at least two rollers (401) form a limiting constraint on the oil delivery pipe (2). The rollers (401) and the oil delivery pipe (2) can generate rolling friction.

2. The oil delivery pipe limiting mechanism according to claim 1, characterized in that: A mounting bracket (103) is provided on one side edge of the opening (101). The mounting bracket (103) is bent toward the inside of the toolbox (1) or toward the outside of the toolbox (1). The roller-type limiting mechanism (4) is mounted on the mounting bracket (103).

3. The oil delivery pipe limiting mechanism according to claim 2, characterized in that: The roller-type limiting mechanism (4) also includes two bolts (402) and two nuts (403). One end of the two bolts (402) passes through the mounting bracket (103) and is connected and fixed to the two nuts (403) respectively. The rollers (401) are rotatably mounted on the two bolts (402).

4. The oil delivery pipe limiting mechanism according to claim 3, characterized in that: The number of rollers (401) includes four, with two rollers (401) distributed sequentially along the length of one of the bolts (402) and the other two rollers (401) distributed sequentially along the length of the other bolt (402). The oil delivery pipe (2) is located between the four rollers (401).

5. The oil delivery pipe limiting mechanism according to claim 4, characterized in that: The end of the roller (401) away from the oil delivery pipe (2) is disc-shaped, and the end of the roller (401) near the oil delivery pipe (2) is cylindrical. The diameter of the disc-shaped end of the roller (401) is larger than the diameter of the cylindrical end.

6. The oil delivery pipe limiting mechanism according to claim 5, characterized in that: The other ends of the two bolts (402) pass through the connecting bracket (104), and the other ends of the two bolts (402) are respectively provided with bolt heads (404). The four rollers (401) are located between the mounting bracket (103) and the connecting bracket (104). The connecting bracket (104) is connected and fixed to the side wall of the toolbox (1).

7. The oil delivery pipe limiting mechanism according to any one of claims 3 to 6, characterized in that: The two bolts (402) are distributed vertically and arranged in parallel, and the length of the bolts (402) extends in the left-right direction.

8. The oil delivery pipe limiting mechanism according to any one of claims 1 to 6, characterized in that: The toolbox (1) is provided with a handrail assembly (5) on the top, which can be used to place the oil gun (3).

9. The oil delivery pipe limiting mechanism according to any one of claims 1 to 6, characterized in that: The oil delivery pipe (2) is a grease delivery pipe, the oil gun (3) is a grease gun, and one end of the oil delivery pipe (2) is connected to the grease supply device through a grease pump.

10. An engineering machinery, comprising an engineering machinery body, characterized in that: It also includes the oil delivery pipe limiting mechanism according to any one of claims 1 to 9, wherein the oil delivery pipe limiting mechanism is disposed on the engineering machinery body.

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