Oil leakage protection device of oil cylinder and vehicle

By using multiple mounting plates and the oil coupling plate in the oil leakage protection device of the lifting cylinder of the aerial work platform, the problems of lowering the oil coupling capacity and damage to the rotating tongue lock are solved, and the maximum capacity and stable connection of the oil coupling plate are achieved.

CN223215526UActive Publication Date: 2025-08-12LINGONG IND VEHICLES (SHANDONG) CO LTD
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Patent Information

Application Number
CN202422206082.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-09
Publication Date
2025-08-12
Estimated Expiration
2034-09-09

AI Technical Summary

Technical Problem

The oil leakage protection device of the existing high-altitude working platform truck lifting cylinder is likely to cause the oil coupling plate to interfere with other structures of the chassis during installation, resulting in a decrease in the oil coupling capacity, and the rotating tongue lock has a risk of collision damage.

Method used

The first connecting parts that are fixedly connected to the opposite sides of the oil coupling plate are adopted to quickly connect and disassemble the oil coupling plate and the installation plate through the installation notch, ensuring that the oil coupling plate does not interfere with other positions during the installation process and enhance stability.

Benefits of technology

The maximum oil coupling capacity and quick connection or disassembly of the oil coupling pan are achieved, avoiding interference between the oil coupling pan and other structures of the chassis, and improving service life and stability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of vehicles, in particular to an oil leakage protection device of an oil cylinder and a vehicle. Due to the fact that the installation plates are distributed on the two opposite sides of the oil receiving disc, and the first connecting piece fixedly connected with the oil receiving disc is connected to the installation notch in a hung mode, connection between the oil receiving disc and the installation plates is achieved, and the first connecting piece can directly enter the installation notch from the installation notch or be separated from the installation notch. When the oil receiving disc is installed, the oil receiving disc firstly gets close to the installation plate, then the moving direction of the oil receiving disc is perpendicular to the installation plate and the oil receiving disc gets close to the direction of the installation plate, and then the first connecting piece enters the notch, so that it is guaranteed that other positions of a whole vehicle cannot interfere with the oil receiving disc in the installation process of the oil receiving disc and after installation is completed; in addition, due to the arrangement of the installation notch, the oil receiving disc and the installation plate can be rapidly connected or detached.
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Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to an oil leakage protection device for an oil cylinder and a vehicle. Background Art

[0002] Aerial work platforms are used to transport workers and equipment to a designated height for work, and can use their own power to navigate the work area. Aerial work platforms use a lifting cylinder to adjust their height, but this cylinder can sometimes leak oil. Existing oil leakage protection devices for the lifting cylinders of aerial work platforms include guide brackets, an oil pan body, and a rotating tongue lock. The two guide brackets are welded to the vehicle chassis at intervals, and the oil pan body is slidably connected to the guide brackets. The rotating tongue lock is installed at the rear of the oil pan body and, when locked, prevents the oil pan from moving forward and backward.

[0003] However, the oil leakage protection device of the lifting cylinder of the above-mentioned aerial work platform vehicle has the following defects:

[0004] During installation, the oil leak protection device can only be moved horizontally along the guide bracket to reach the designated installation position. Because the lift cylinder oil pan is located at the bottom of the vehicle chassis, the oil leak protection device determines the vehicle's ground clearance. Therefore, in the prior art, the oil leak protection device cannot be installed too low. Installing it too high would cause the oil pan to interfere with other chassis structures. Therefore, in the prior art, a notch is provided at the front end of the oil pan body. This notch prevents the oil pan from interfering with the lift cylinder as it moves within the guide bracket. Consequently, the notch reduces the oil pan's oil collection capacity.

[0005] Therefore, there is an urgent need for an oil leakage protection device for an oil cylinder to solve the above technical problems. Utility Model Content

[0006] The purpose of the utility model is to provide an oil leakage protection device for an oil cylinder and a vehicle, which can prevent the oil receiving capacity of the oil receiving pan from decreasing.

[0007] To achieve this purpose, the present invention adopts the following technical solutions:

[0008] In a first aspect, an oil leakage protection device for an oil cylinder is provided, which is installed on a vehicle chassis and comprises:

[0009] A mounting plate, the mounting plate being fixedly connected to the vehicle chassis, the mounting plate being provided with a mounting notch, and the number of the mounting plates being multiple;

[0010] The oil receiving pan, the plurality of mounting plates are distributed on opposite sides of the oil receiving pan, the oil receiving pan is fixedly connected with a first connecting member, and the first connecting member is hung at the mounting notch.

[0011] As an optimal technical solution for the oil leakage protection device of the above-mentioned oil cylinder, the first connecting part is a connecting bolt, the oil receiving pan is provided with a threaded hole, one end of the connecting bolt passes through the threaded hole and is threadedly connected to the threaded hole, and the part of the connecting bolt passing through the threaded hole is hung on the installation notch.

[0012] As a preferred technical solution of the oil leakage protection device of the above-mentioned oil cylinder, a fixing nut for fixing the first connecting member is provided on the side of the oil receiving pan away from the mounting plate, and the fixing nut is provided in a one-to-one correspondence with the first connecting member.

[0013] As an optimal technical solution for the oil leakage protection device of the above-mentioned oil cylinder, at least one of the mounting plates is further provided with a mounting hole, and the oil receiving pan is provided with a connecting hole. The mounting hole and the mounting notch are spaced apart, and a second connecting member limits the mounting plate and the oil receiving pan through the mounting hole and the connecting hole.

[0014] As a preferred technical solution of the oil leakage protection device of the above-mentioned oil cylinder, the second connecting member includes a connecting nut and a fixing bolt, and the fixing bolt passes through the mounting hole and the connecting hole and is threadedly connected to the connecting nut; or,

[0015] The second connecting member includes a spring pin, one end of which passes through the connecting hole and the mounting hole.

[0016] As a preferred technical solution of the oil leakage protection device of the above-mentioned oil cylinder, the mounting hole is an elongated hole, and the length extension direction of the mounting hole is in the same direction as the length direction of the mounting plate.

[0017] As a preferred technical solution of the oil leakage protection device of the above-mentioned oil cylinder, the oil receiving pan is provided with a bent plate, and the horizontal portion of the bent plate is located on the vehicle chassis.

[0018] As a preferred technical solution of the oil leakage protection device of the above-mentioned oil cylinder, the bent plate is fixedly connected to the vehicle chassis by fasteners.

[0019] As a preferred technical solution of the oil leakage protection device of the above-mentioned oil cylinder, the oil receiving pan is provided with at least two bent plates, and the at least two bent plates are arranged at intervals.

[0020] In a second aspect, a vehicle is provided, comprising a complete vehicle and the oil leakage protection device for the oil cylinder as described in any of the above schemes, wherein the complete vehicle comprises a vehicle chassis, and the vehicle chassis is connected to the oil leakage protection device for the oil cylinder.

[0021] The utility model has at least the following beneficial effects:

[0022] The oil leakage protection device of the oil cylinder provided by the utility model has the oil receiving pan arranged between the mounting plates, and the first connecting piece fixedly connected to the oil receiving pan is hung at the mounting notch, thereby realizing the connection between the oil receiving pan and the mounting plate. Since the first connecting piece can directly enter the mounting notch or detach from the mounting notch from the mounting notch, the oil receiving pan is first approached to the mounting plate during installation, and then the moving direction of the oil receiving pan is perpendicular to the mounting plate and approached to the mounting plate, thereby allowing the first connecting piece to enter the notch, so as to ensure that during the installation process and after the installation of the docking oil pan is completed, other positions of the entire vehicle will not interfere with the oil receiving pan, thereby maximizing the oil receiving capacity of the oil receiving pan. In addition, the setting of the mounting notch enables the oil receiving pan and the mounting plate to be quickly connected or disassembled.

[0023] The vehicle provided by the utility model adopts the oil leakage protection device of the above-mentioned oil cylinder. After the oil receiving pan is installed, since multiple mounting plates are distributed on opposite sides of the oil receiving pan, the first connecting piece is hung at the mounting notch, thereby realizing the connection between the oil receiving pan and the mounting plate. Since the first connecting piece can directly enter the mounting notch or detach from the mounting notch from the mounting notch, the oil receiving pan is first approached to the mounting plate during installation, and then the moving direction of the oil receiving pan is perpendicular to the mounting plate and approached to the mounting plate, thereby allowing the first connecting piece to enter the notch, so as to ensure that during the installation process and after the installation of the docking oil pan is completed, other positions of the entire vehicle will not interfere with the oil receiving pan, thereby maximizing the oil receiving capacity. In addition, the setting of the mounting notch enables the oil receiving pan and the mounting plate to be quickly connected or disassembled. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without paying any creative work.

[0025] Figure 1 A schematic structural diagram of the oil leakage protection device for the oil cylinder provided by the utility model;

[0026] Figure 2 This is a schematic diagram of the structure of the oil leakage protection device of the oil cylinder provided by the utility model installed on the whole vehicle;

[0027] Figure 3 for Figure 2 A partial enlarged view of point A in the middle.

[0028] In the picture:

[0029] 1. Mounting plate; 11. Mounting notch; 12. Mounting hole; 2. Oil pan; 21. Main body; 22. Connecting ear; 23. Bending plate; 3. Connecting bolt; 4. Fixing nut; 5. Spring pin; 100. Complete vehicle. DETAILED DESCRIPTION

[0030] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all of its components.

[0031] In the description of this utility model, unless otherwise specified or limited, the terms "connected," "connect," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0032] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0033] In the description of this embodiment, the terms "upper," "lower," "right," and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely for ease of description and simplified operation. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0034] During installation, the oil leakage protection device can only be moved horizontally along the guide bracket to reach the designated installation position. Because the lifting cylinder oil pan is located at the bottom of the vehicle chassis, the oil leakage protection device determines the vehicle's ground clearance. Therefore, in the prior art, the oil leakage protection device cannot be installed too low. Installing it too high will cause the oil pan body to interfere with other chassis structures. Therefore, in the prior art, a notch is provided at the front end of the oil pan body. This notch prevents the oil pan body from interfering with the lifting cylinder when moving within the guide bracket. Therefore, the provision of the notch reduces the oil pan's oil receiving capacity. The rotating tongue lock is located at the rear end of the oil pan body and protrudes from the oil pan body and the exterior facade of the vehicle, posing a greater risk of collision damage or detachment. This increases the probability of collision between the rotating tongue lock and external interference, seriously affecting the oil pan's service life and stability.

[0035] In order to solve the above technical problems, the utility model provides an oil leakage protection device for an oil cylinder. The oil leakage protection device for an oil cylinder is installed on a vehicle chassis and can be used to collect oil for lifting or rotating the oil cylinder.

[0036] like Figure 1 As shown, the oil leakage protection device of the oil cylinder includes a mounting plate 1 and an oil receiving pan 2. There are multiple mounting plates 1, each of which is fixedly connected to the vehicle chassis, and the mounting plate 1 is provided with a mounting notch 11; multiple mounting plates 1 are distributed on opposite sides of the oil receiving pan 2, and the oil receiving pan 2 is fixedly connected with a first connecting member, which is hung at the mounting notch 11 to suspend the oil receiving pan 2 on the mounting plate 1.

[0037] The oil leakage protection device of the oil cylinder provided by the present invention has multiple mounting plates 1 distributed on opposite sides of the oil receiving pan 2, and the first connecting piece is hung at the mounting notch 11, thereby realizing the connection between the oil receiving pan 2 and the mounting plate 1. Since the first connecting piece can directly enter the mounting notch 11 from the mounting notch 11 or detach from the mounting notch 11, the oil receiving pan 2 is first approached to the mounting plate 1 during installation, and then the moving direction of the oil receiving pan 2 is perpendicular to the mounting plate 1 and approaches the mounting plate 1, thereby making the first connecting piece enter the mounting notch 11, so as to ensure that during the installation process and after the installation of the docking oil pan 2, other positions of the whole vehicle 100 will not interfere with the oil receiving pan 2, so that the oil receiving capacity of the oil receiving pan 2 reaches the maximum value. In addition, the setting of the mounting notch 11 can enable the oil receiving pan 2 to be quickly connected or disassembled from the mounting plate 1.

[0038] It should be noted that the mounting plates 1 are located on both sides of the oil pan 2. The number of mounting plates 1 provided on each side of the oil pan 2 can be set according to actual needs and is not limited to a specific number in this embodiment. The mounting plates 1 can be fixedly connected to the vehicle chassis using fasteners or by welding.

[0039] In some embodiments, in order to fix the first connecting member to the oil receiving pan 2, the first connecting member is a connecting bolt 3, and the oil receiving pan 2 is provided with a threaded hole. One end of the connecting bolt 3 passes through the threaded hole and is threadedly connected to the threaded hole. The part of the connecting bolt 3 passing through the threaded hole is hung at the mounting notch 11. The connecting bolt 3 cooperates with the threaded hole to realize the fixed connection between the connecting bolt 3 and the oil receiving pan 2, and then the connecting bolt 3 can extend into the mounting notch 11 to connect the oil pan 2 for suspension fixation.

[0040] Of course, in other embodiments, the first connecting member may also be welded to the oil receiving pan 2 .

[0041] In some embodiments, a fixing nut 4 for securing the first connecting member is provided on the side of the oil drain pan 2 facing away from the mounting plate 1. The fixing nut 4 corresponds to the first connecting member, and one end of the connecting bolt 3 passes through the fixing nut 4 and the threaded hole, thereby securing the connecting bolt 3 to the oil drain pan 2. The provision of the fixing nut 4 provides a secondary fixation for the connecting bolt 3 and prevents the connecting bolt 3 from becoming detached from the threaded hole after a period of operation, thereby improving the stability of the connection between the oil drain pan 2 and the mounting plate 1.

[0042] In some embodiments, at least one mounting plate 1 is provided with a mounting hole 12, and the oil drain pan 2 is provided with a connecting hole. The mounting hole 12 is spaced apart from the mounting notch 11. A second connecting member passes through the mounting hole 12 and the connecting hole to secure the mounting plate 1 and the oil drain pan 2. The mounting hole 12 extends in the same direction as the length of the mounting plate 1. The second connecting member can restrict the vertical and horizontal movement of the oil drain pan 2. In this way, the oil drain pan 2 can be securely restrained to the vehicle chassis by the second connecting member and the first connecting member.

[0043] In some embodiments, the second connecting member includes a connecting nut and a fixing bolt, which passes through the mounting hole 12 and the connecting hole and is threadedly connected to the connecting nut. The provision of the fixing bolt and the connecting nut enables a detachable connection between the oil pan 2 and the mounting plate 1, and also allows the mounting plate 1 and the oil pan 2 to be limited in position.

[0044] In other embodiments, the second connecting member includes a spring pin 5, one end of which extends through the connecting hole and the mounting hole 12. The structure of the spring pin 5 is conventional and will not be described in detail here. The spring pin 5 can restrict the vertical and horizontal movement of the oil pan 2. When the mounting plate 1 and the oil pan 2 need to be separated, the spring pin 5 is pressed to disengage the spring pin 5 from the mounting hole 12 of the mounting plate 1, and then the oil pan 2 is pushed toward the opening of the mounting notch 11. Without the vertical, horizontal, or horizontal restraints of the spring pin 5, the oil pan 2 can be separated from the mounting plate 1.

[0045] For example, the mounting hole 12 is an elongated hole. Such an arrangement can ensure the installation of the spring pin 5 and reduce the installation requirements of the mounting hole 12 on the spring pin 5.

[0046] In some embodiments, the edge of the oil pan 2 is provided with a vertical plate, which encloses a space for receiving oil, thereby preventing oil from dripping from the edge of the oil pan 2 and providing good support for the oil pan 2. In some embodiments, the oil pan 2 includes a main body 21 and a connecting ear 22. In some embodiments, the connecting ear 22 is integrally formed with the main body 21. In other embodiments, the connecting ear 22 is welded to the main body 21 or fixedly connected by fasteners.

[0047] like Figure 2 and Figure 3 As shown, a bent plate 23 is provided on the side of the oil pan 2 facing the vehicle chassis. The horizontal portion of the bent plate 23 is located on the vehicle chassis (specifically, the chassis). For example, the bent plate 23 is Z-shaped; in other embodiments, it can be L-shaped. A specific shape for the bent plate 23 is provided herein, as long as it can overlap the vehicle chassis within a protective range. The combination of the spring pin 5, the first connector, and the bent plate 23 effectively supports and secures the oil pan 2.

[0048] In some embodiments, in order to improve the stability of the oil pan 2 and the vehicle chassis, the bent plate 23 is fixedly connected to the vehicle 100 by fasteners. Optionally, the fasteners are screws.

[0049] Furthermore, the oil pan 2 is provided with at least two bent plates 23, which are spaced apart from each other. The provision of at least two bent plates 23 can improve the stability of the support of the oil pan 2. Compared with a single bent plate 23, at least two bent plates 23 can share the weight of the oil pan 2, thereby improving overall reliability.

[0050] A vehicle is also provided in an embodiment of the present invention, including a whole vehicle 100 and the oil leakage protection device for the oil cylinder provided in the above embodiment. The whole vehicle 100 includes a vehicle chassis, and the vehicle chassis is connected to the oil leakage protection device for the oil cylinder. The vehicle provided by the present invention adopts the oil leakage protection device of the oil cylinder. After the oil receiving pan 2 is installed, since multiple mounting plates 1 are distributed on opposite sides of the oil receiving pan 2, the first connecting piece is hung at the mounting notch 11 to hang the oil receiving pan 2 between the mounting plates 1, thereby realizing the connection between the oil receiving pan 2 and the mounting plate 1. Since the first connecting piece can directly enter the mounting notch 11 or detach from the mounting notch 11 from the mounting notch 11, the oil receiving pan 2 is first approached to the mounting plate 1 during installation, and then the moving direction of the oil receiving pan 2 is perpendicular to the mounting plate 1 and approaches the mounting plate 1, thereby allowing the first connecting piece to enter the mounting notch 11, so as to ensure that during the installation process and after the installation of the docking oil pan 2, other positions of the entire vehicle 100 will not interfere with the oil receiving pan 2, thereby maximizing the oil receiving capacity. In addition, the setting of the mounting notch 11 enables the oil receiving pan 2 to be quickly connected or disassembled from the mounting plate 1.

[0051] Since the vehicle of the embodiment of the utility model includes the oil leakage protection device of the oil cylinder, all the advantages and beneficial effects of the above embodiments are obtained, which will not be described in detail here.

[0052] Furthermore, the above are merely preferred embodiments of the present invention and the technical principles employed. Those skilled in the art will appreciate that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments, and substitutions are possible for those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments and may include many other equivalent embodiments without departing from the scope of the present invention. The scope of the present invention is determined by the scope of the appended claims.

Claims

1. The oil leakage protection device of the oil cylinder is installed on the vehicle chassis, which is characterized by: include: A mounting plate (1), the mounting plate (1) being fixedly connected to the vehicle chassis, the mounting plate (1) being provided with a mounting notch (11), and the number of the mounting plates (1) being multiple; An oil receiving pan (2), wherein the plurality of mounting plates (1) are distributed on two opposite sides of the oil receiving pan (2), and the oil receiving pan (2) is fixedly connected to a first connecting member, which is hooked at the mounting notch (11).

2. The oil leakage protection device for the oil cylinder according to claim 1, characterized in that: The first connecting member is a connecting bolt (3), the oil receiving pan (2) is provided with a threaded hole, one end of the connecting bolt (3) passes through the threaded hole and is threadedly connected to the threaded hole, and the portion of the connecting bolt (3) passing through the threaded hole is hooked on the installation notch (11).

3. The oil leakage protection device for the oil cylinder according to claim 2, characterized in that: A fixing nut (4) for fixing the first connecting member is provided on the side of the oil receiving pan (2) facing away from the mounting plate (1), and the fixing nut (4) is provided in a one-to-one correspondence with the first connecting member.

4. The oil leakage protection device for the oil cylinder according to claim 1, characterized in that: At least one of the mounting plates (1) is further provided with a mounting hole (12), and the oil receiving pan (2) is provided with a connecting hole, the mounting hole (12) and the mounting notch (11) are spaced apart, and a second connecting member limits the mounting plate (1) and the oil receiving pan (2) via the mounting hole (12) and the connecting hole.

5. The oil leakage protection device for the oil cylinder according to claim 4, characterized in that: The second connecting member comprises a connecting nut and a fixing bolt, wherein the fixing bolt passes through the mounting hole (12) and the connecting hole and is threadedly connected to the connecting nut; or, The second connecting member comprises a spring pin (5), one end of which passes through the connecting hole and the mounting hole (12).

6. The oil leakage protection device for the oil cylinder according to claim 4, characterized in that: The mounting hole (12) is a long strip-shaped hole, and the length extension direction of the mounting hole (12) is in the same direction as the length direction of the mounting plate (1).

7. The oil leakage protection device for the oil cylinder according to claim 1, characterized in that: The oil receiving pan (2) is provided with a bent plate (23), and the horizontal portion of the bent plate (23) is located on the vehicle chassis.

8. The oil leakage protection device for the oil cylinder according to claim 7, characterized in that: The bent plate (23) is fixedly connected to the vehicle chassis via fasteners.

9. The oil leakage protection device for the oil cylinder according to claim 7, characterized in that: The oil receiving pan (2) is provided with at least two bent plates (23), and the at least two bent plates (23) are arranged at intervals.

10. A vehicle, characterized in that The invention comprises a whole vehicle (100) and an oil leakage protection device for an oil cylinder according to any one of claims 1 to 9, wherein the whole vehicle (100) comprises a vehicle chassis, and the vehicle chassis is connected to the oil leakage protection device for the oil cylinder.