A pit station vehicle maintenance device

Abstract

The utility model relates to a ditch station vehicle maintenance device, including mounting seat, the mounting seat has the center through -hole, the lower end surface fixed mounting of mounting seat has hydraulic cylinder locating seat, hydraulic cylinder locating seat includes at least two fixed plates, hydraulic cylinder is located between two fixed plates, two fixed plates have the locating hole of alignment, hydraulic cylinder includes cylinder body and the hydraulic cylinder in cylinder body, the bottom of cylinder body has the through -hole, and the locating piece passes through the locating hole on two fixed plates and the through -hole and positions cylinder body, the upper end of cylinder body passes through center through -hole and is connected with mounting seat, and the upper end of hydraulic rod installs the supporting piece. It is used for supporting gearbox and transmission shaft, and the maintenance process is convenient, fast, high security.

Description

Technical Field

[0001] This utility model relates to auxiliary tools for the maintenance of the chassis drive shaft and gearbox of large trucks, specifically a vehicle maintenance device for a pit workstation. Background Technology

[0002] When a vehicle (large truck, lorry) breaks down and is being repaired in a pit, requiring support for the driveshaft, gearbox, or engine, traditional methods have many drawbacks. The traditional method involves repair personnel first finding appropriately sized wooden blocks, laying them across both sides of the pit, and repeatedly adjusting their position to ensure stability. This process often requires two people and is time-consuming. Afterward, jacks are placed on the wooden blocks, and their position is adjusted multiple times to align with the support points for the gearbox or engine. However, this combination of timber and jacks is not only inefficient but also poses serious safety hazards. The load-bearing capacity of timber is greatly affected by its material and moisture content, and it is prone to cracking or deformation after long-term use. If it breaks during support, the component could fall and injure maintenance personnel in the trench below. Even more problematic is that the flat design of the jack tip is only suitable for the flat surfaces of gearboxes and engines; it cannot provide stable support for cylindrical drive shafts, posing a safety risk. This operating mode not only increases the intensity of labor, but also puts maintenance personnel in a state of risk for a long time, and there is an urgent need for a safer and more efficient support solution to replace it. Summary of the Invention

[0003] To address the aforementioned issues, this utility model proposes a vehicle repair device for a pit workstation, used to support the gearbox and drive shaft, making the repair process convenient, quick, and highly safe.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a vehicle repair device for a trench workstation, comprising a mounting base with a central through hole, a hydraulic cylinder positioning seat fixedly mounted on the lower end face of the mounting base, the hydraulic cylinder positioning seat comprising at least two fixing plates, the hydraulic cylinder being located between the two fixing plates, the two fixing plates having aligned positioning holes, the hydraulic cylinder comprising a cylinder body and a hydraulic cylinder located within the cylinder body, the bottom of the cylinder body having a through hole, a positioning element passing through the positioning holes and the through hole on the two fixing plates to position the cylinder body, the upper end of the cylinder body passing through the central through hole and connecting to the mounting base, and a support being mounted on the upper end of the hydraulic rod.

[0005] Based on the above scheme, as a preferred option, the upper end of the hydraulic cylinder is fixedly installed with a sleeve, and the support is inserted into the sleeve or sleeved on the sleeve.

[0006] Based on the above scheme, as a preferred embodiment, the support includes a first support and a second support. The first support includes a first pipe and a first support portion fixed to the upper end of the first pipe. The first support portion is arc-shaped. The first pipe is connected by a connection method of being sleeved on or inserted into a sleeve. The second support includes a second pipe fitting and a support plate fixed to the upper end of the second pipe fitting. The upper surface of the support plate is flat. The second pipe fitting is connected by fitting onto the sleeve or inserting into the sleeve.

[0007] Based on the above scheme, as a preferred option, the mounting base has four rollers on both sides.

[0008] Based on the above scheme, as a preferred option, the roller can be replaced by a bearing.

[0009] Based on the above scheme, as a preferred option, the upper end of the cylinder block passes through the central through hole and is fixedly connected to the mounting base.

[0010] Based on the above scheme, as a preferred option, the upper end of the cylinder body passes through the central through hole and is fitted with the mounting base with a clearance, so that the cylinder body can move up and down along the central through hole.

[0011] Based on the above scheme, as a preferred embodiment, each fixing plate has at least two positioning holes, which are aligned one by one, including a first positioning hole located below and a second positioning hole located above the first positioning hole. The diameters of the first positioning hole, the second positioning hole, the first pipe, and the second pipe are the same.

[0012] Based on the above scheme, as a preferred option, a fixed seat is fixedly installed at each of the front and rear ends of the mounting base. The left and right ends of the fixed seat have adjustment holes, and the radial direction of the adjustment holes has locking bolt mounting holes. The central shaft of the roller or bearing is inserted into the adjustment hole, and the locking bolt passes through the locking bolt mounting hole to fix the central shaft.

[0013] Compared with the prior art, the present invention has the following beneficial effects: By installing rollers on both sides of the mounting base, the mounting base can move along the steps on both sides of the upper end of the trench during use, thereby reaching the place where maintenance is needed. Compared with the traditional method, it is more convenient and faster to reach the place where maintenance is needed.

[0014] The mounting base is made of metal, which is high in strength and has a strong load-bearing capacity. It will not break during the support process or crack or deform after long-term use, making it safe and reliable to use.

[0015] The first support piece with an arc-shaped upper end and the second support piece with a flat upper surface work together with the hydraulic rod. This allows them to be used to support the drive shaft and gearbox respectively by simply replacing the first and second support pieces and moving them to their corresponding positions using rollers. This method is highly efficient. Attached Figure Description

[0016] Figure 1 This is a perspective view of the present invention; Figure 2 This is a schematic diagram of the cooperation between the roller and the fixed base in Embodiment 3 of this utility model; Detailed Implementation

[0017] The present invention will be further described below through embodiments, but the scope of the present invention is not limited thereto.

[0018] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to the present invention. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0019] like Figure 1-2 As shown, Example 1

[0020] A vehicle maintenance device for a trench workstation includes a mounting base 1 with a central through hole. A hydraulic cylinder positioning seat is fixedly mounted on the lower end face of the mounting base. The hydraulic cylinder positioning seat includes at least two fixing plates 2. The hydraulic cylinder is located between the two fixing plates. The two fixing plates have aligned positioning holes 3. The hydraulic cylinder includes a cylinder body 4 and a hydraulic rod 5 located inside the cylinder body. The bottom of the cylinder body has a through hole. A positioning element 6 passes through the positioning holes and the through hole on the two fixing plates to position the cylinder body. The upper end of the cylinder body passes through the central through hole and is fixedly connected to the mounting base.

[0021] The upper end of the hydraulic rod is fixedly installed with a sleeve 7. A support member is inserted into or fitted onto the sleeve. The support member includes a first support member and a second support member. The first support member includes a first pipe fitting and a first support portion 8 fixed (by welding) at the upper end of the first pipe fitting. The first support portion is arc-shaped and is used to support the drive shaft at the bottom of the truck for easy maintenance. The first pipe fitting can be connected by fitting onto or inserting into the sleeve. When fitting onto the sleeve, the sleeve can be a solid rod.

[0022] The second support includes a second pipe 9 and a second support portion 10 fixed (by welding) at the upper end of the second pipe. The upper surface of the second support portion is flat and is used to support the flat parts of the gearbox and engine. The second pipe can be connected by fitting it onto a sleeve or inserting it into a sleeve. When fitting it onto a sleeve, the sleeve can be a solid rod.

[0023] The mounting base has four rollers on both sides, and the rollers can also be replaced by bearings.

[0024] In the above solution, by installing rollers on both sides of the mounting base, the mounting base can travel along the steps 13 on both sides of the upper end of the trench 12 during use, thereby reaching the area requiring maintenance. When reaching the area requiring maintenance, if it is a drive shaft, the first tube of the first support is inserted into the sleeve at the upper end of the hydraulic rod, and the first support pushes up and supports the drive shaft for maintenance. If it is a gearbox or engine, the second tube of the second support is inserted into the sleeve at the upper end of the hydraulic rod, and the second support pushes up and supports the gearbox or engine for maintenance.

[0025] The hydraulic pump 19, which supplies oil to the cylinder, is fixed on two fixed plates. It can be a manual or electric hydraulic pump (the pump and oil tank are integrated). The design of the two fixed plates, with a gap between them, facilitates the vertical movement of the connecting pipe between the hydraulic pump and the cylinder body, so as to carry out the design of Embodiment 2. In this Embodiment 1, the two fixed plates can be replaced by pipe fittings (square pipe or round pipe) that are open at the top and closed at the bottom. Example 2

[0026] Since different types of trucks have different ground clearance, improvements have been made to Example 1 to make it suitable for different types of trucks. The specific improvements are as follows: The upper end of the cylinder passes through the central through hole and is fitted with the mounting base with a clearance, so that the cylinder can move up and down along the central through hole.

[0027] Each mounting plate has at least two positioning holes, which are aligned one to one. The schematic diagram of this scheme shows two positioning holes: the first positioning hole (positioning) located at the bottom and the second positioning hole located at the top (reference numeral 3 in the above figure).

[0028] In normal use, the positioning component, such as the pin, is inserted into the first positioning hole and the through hole at the bottom of the cylinder for positioning. When encountering a large truck with a high ground clearance, the pin is pulled out, the cylinder is pulled upward, and inserted into the second positioning hole and the through hole at the bottom of the cylinder for positioning. This allows the device to be applied to vehicles of different heights.

[0029] The first positioning hole has the same diameter, the second positioning hole has the same diameter, the first fitting has the same outer diameter, and the second fitting has the same outer diameter. This means that the first and second positioning holes are not only for positioning. During use, only one of the first and second positioning holes will be used, and only one of the first and second support pieces will be used. Therefore, unused support pieces can be inserted into unused positioning holes. Compared to placing unused support pieces in a designated location on site or in a warehouse, the first and second support pieces can be quickly replaced, improving work efficiency and reducing the risk of loss. Example 3

[0030] The pit is fixed. During maintenance, the two wheels of the truck need to be positioned on either side of the pit. However, due to the varying driving habits and skill levels of truck drivers, it is difficult to park the wheels perfectly parallel to the pit, resulting in a tilt. In this case, the support points of the truck's drive shaft and gearbox will shift in the left and right directions.

[0031] Therefore, based on embodiments 1 and 2, the rollers on both sides of the mounting base are improved. A fixed base 14 is fixedly installed at each of the front and rear ends of the mounting base. The left and right ends of the fixed base have adjustment holes 15. The adjustment holes have locking bolt mounting holes 16 (threaded holes) in the radial direction. The central shaft 18 of the roller or bearing is inserted into the adjustment hole, and the locking bolt 17 passes through the locking bolt mounting hole to fix the central shaft.

[0032] When in use, if the truck is parked crookedly (relative to the pit), loosen the locking bolts, pull the corresponding center axis outward or push it inward, and then tighten the locking bolts again. This will make the hydraulic rod offset in the left and right directions by the same amount as the truck's offset when it is crooked, ensuring that normal lifting and support can be performed. This avoids repeatedly adjusting the vehicle's parking position and improves maintenance efficiency.

[0033] It should be noted that the embodiments described above are only for explaining the present invention and do not constitute any limitation on the present invention. The present invention has been described with reference to typical embodiments, but it should be understood that the words used therein are descriptive and explanatory terms, not limiting terms. Modifications can be made to the present invention within the scope of the claims, and revisions can be made to the present invention without departing from the scope and spirit of the present invention. Although the present invention described herein relates to specific methods, materials, and embodiments, it does not mean that the present invention is limited to the specific examples disclosed herein; on the contrary, the present invention can be extended to all other methods and applications with the same function.

Claims

1. A vehicle repair device for a trench workstation, characterized in that, The device includes a mounting base with a central through hole. A hydraulic cylinder positioning seat is fixedly mounted on the lower end face of the mounting base. The hydraulic cylinder positioning seat includes at least two fixing plates. The hydraulic cylinder is located between the two fixing plates. The two fixing plates have aligned positioning holes. The hydraulic cylinder includes a cylinder body and a hydraulic cylinder located inside the cylinder body. The bottom of the cylinder body has a through hole. A positioning element passes through the positioning holes and the through hole on the two fixing plates to position the cylinder body. The upper end of the cylinder body passes through the central through hole and connects to the mounting base. A support is mounted on the upper end of the hydraulic rod.

2. The vehicle repair device for the trench workstation as described in claim 1, characterized in that, A sleeve is fixedly installed at the upper end of the hydraulic cylinder, and the support is inserted into the sleeve or sleeved on the sleeve.

3. The vehicle repair device for the trench workstation as described in claim 2, characterized in that, The support includes a first support and a second support. The first support includes a first pipe fitting and a first support portion fixed to the upper end of the first pipe fitting. The first support portion is arc-shaped. The first pipe fitting is connected by a connection method of being sleeved on or inserted into a sleeve. The second support includes a second pipe fitting and a second support portion fixed to the upper end of the second pipe fitting. The upper surface of the second support portion is flat. The second pipe fitting is connected by a connection method of being sleeved on the sleeve or inserted into the sleeve.

4. The vehicle repair device for the trench workstation as described in claim 2, characterized in that, The mounting base has four rollers on both sides.

5. The vehicle repair device for the trench workstation as described in claim 4, characterized in that, Rollers can be replaced by bearings.

6. The vehicle repair device for the trench workstation as described in any one of claims 1-4, characterized in that, The upper end of the cylinder block passes through the central through hole and is fixedly connected to the mounting base.

7. The vehicle repair device for the trench workstation as described in any one of claims 1-4, characterized in that, The upper end of the cylinder passes through the central through hole and is fitted with the mounting base with a clearance, so that the cylinder can move up and down along the central through hole.

8. The vehicle repair device for the trench workstation as described in claim 7, characterized in that, Each mounting plate has at least two positioning holes, which are aligned one to one, including a first positioning hole located below and a second positioning hole located above the first positioning hole. The diameters of the first positioning hole, the second positioning hole, the first fitting, and the second fitting are the same.

9. The vehicle repair device for the trench workstation as described in claim 7, characterized in that, A mounting base is fixedly installed at each of the front and rear ends. The mounting base has adjustment holes at both the left and right ends. The adjustment holes have locking bolt mounting holes in the radial direction. The central shaft of the roller or bearing is inserted into the adjustment hole, and the locking bolt passes through the locking bolt mounting hole to fix the central shaft.

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