Adjustable base for a trailer jack

Abstract

The utility model discloses an adjustable pedestal for trailer jack relates to trailer jack technical field. The utility model discloses a support frame and sets up the jack at the top of support frame, still includes: adjusting portion, adjusting portion installs on the support frame, fixed portion, fixed portion sets up at the top of support frame, adjusting portion includes moving assembly, moving assembly installs on the support frame, support assembly, support assembly sets up on the support frame, moving assembly includes the electric telescopic handle of fixed connection in the top inner wall of support frame, and the output fixedly connected with cross plate of electric telescopic handle. The utility model discloses setting adjusting portion, has solved the pedestal in the use process, needs manual dismounting component, and the operation is complicated, and it is difficult to realize quick switching to adjust the position of jack conveniently, leads to difficult to adapt to the flexible demand of jack movement and positioning under a variety of scenes, influences the problem of operation efficiency and stability.

Description

Technical Field

[0001] This utility model belongs to the technical field of trailer jacks, and in particular relates to an adjustable base for trailer jacks. Background Technology

[0002] With the booming development of the logistics and transportation and outdoor operation industries, trailers, as the core tools for cargo transfer and equipment carrying, are being used in increasingly complex and diverse scenarios. As a key support device to ensure the stability of trailer loading and unloading operations and the safety of maintenance and repair, the demand for trailer jacks is also continuously rising. In the process of using trailer jacks, the adjustable base is the core component for adjusting the support height and adapting to different working grounds. Its support stability and adjustment flexibility are directly related to the load-bearing performance and operational safety of the jack. Therefore, trailer jacks with reliable structures need to use adjustable bases to provide stable support for the jacks.

[0003] However, the existing base requires manual disassembly and assembly of parts during use, which is cumbersome and makes it difficult to quickly switch to adjust the jack position. This makes it difficult to adapt to the flexible needs of jack movement and positioning in various scenarios, affecting work efficiency and stability. Utility Model Content

[0004] The purpose of this utility model is to provide an adjustable base for trailer jacks. By setting an adjustment part, it solves the problem that existing bases require manual disassembly and assembly of parts during use, which is cumbersome and makes it difficult to quickly switch to adjust the position of the jack. This makes it difficult to adapt to the flexible needs of jack movement and positioning in various scenarios, thus affecting work efficiency and stability.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: This utility model relates to an adjustable base for a trailer jack, comprising a support frame and a jack mounted on top of the support frame, and further comprising: an adjustment part mounted on the support frame; a fixing part mounted on top of the support frame; the adjustment part including a moving component mounted on the support frame; and a support component mounted on the support frame; the moving component including an electric telescopic rod fixedly connected to the inner wall of the top of the support frame, the output end of which is fixedly connected to a cross plate; two guide rods between the inner walls of the top and bottom of the support frame, both of which penetrate the cross plate and are slidably connected to it; two hinge blocks fixedly connected to the inner wall of the bottom of the support frame, each hinge block having two L-shaped hinge rods hinged to it; each L-shaped hinge rod having two slots, with transmission rods installed in the two adjacent slots; the two transmission rods being fixedly connected to the left and right sides of the cross plate respectively; connecting parts on the L-shaped hinge rods; and a moving part on the support frame. Two L-shaped hinge rods are mirror images of each other. The connecting member includes connecting rods respectively disposed in two slots that are far apart from each other. The two connecting rods are mirror images of each other. The moving member includes support rods respectively fixedly connected to the front and rear sides of the two connecting rods. The bottom of several support rods extends outside the support frame. Several support rods are slidably connected to the support frame. The bottom of several support rods is rotatably connected to casters. Four casters are provided and located below the support frame.

[0006] Furthermore, the fixing part includes a fixing component mounted on the top of the support frame; and a driving component disposed on the fixing component.

[0007] Furthermore, the support assembly includes two cylindrical rods passing through the cross plate, with support legs fixedly connected to the left and right sides of the two cylindrical rods, the bottoms of several support legs extending outside the support frame, and several support legs slidably connected to the support frame; the two cylindrical rods are located at the front and rear sides of the electric telescopic rod respectively, and four support legs are provided.

[0008] Furthermore, the fixing component includes two rectangular plates fixedly connected to the top of the support frame, a sliding rod fixedly connected between the two rectangular plates, and two fixing plates slidably connected to the outer wall of the sliding rod; the two fixing plates are mirror images of each other.

[0009] Furthermore, the drive assembly includes a bidirectional threaded rod rotatably connected between two rectangular plates, with the left side of the bidirectional threaded rod penetrating through the rectangular plate on the left side, and a motor fixedly connected to the left side of the rectangular plate on the left side; the output shaft of the motor is fixedly connected to the bidirectional threaded rod via a coupling.

[0010] Furthermore, the jack used in this device is the OYS multi-stage hydraulic jack from Tianjin Weili Engineering Jack Co., Ltd. Its working principle is as follows: high-pressure oil is input into the cylinder through an external hydraulic system, pushing the multi-stage nested pistons to extend sequentially. Utilizing Pascal's principle of fluid pressure transmission, the pressure of the small-area piston is amplified and converted into a large-tonnage lifting force. During retraction, the oil is returned by controlling the return valve, and the pistons retract and reset segment by segment under load or their own weight. The multi-stage structure achieves long-stroke lifting while ensuring stability during operation.

[0011] This utility model has the following beneficial effects: 1. By setting up the adjustment section and activating the electric telescopic rod, the cross plate is pulled up along the guide rod. The cross plate, through the transmission rod and the slot, pushes the L-shaped hinge rod to rotate around the hinge block, and then presses down the connecting rod through the slot, causing the support rod to drive the caster wheel to touch the ground. At the same time, the cross plate uses the cylindrical rod to move the support leg up away from the ground, at which point the support frame can be pushed to move the jack. When fixing, the process is reversed, and the jack position can be fixed by the support frame. It can quickly switch to the moving state for easy jack position adjustment, and can also stably switch to the fixed state to ensure operational stability, adapting to the jack movement and positioning needs in various scenarios. 2. By setting up a fixing part, when in use, the jack is placed between the two fixing plates on the top of the support frame, the motor is started to drive the bidirectional threaded rod to rotate, and the two fixing plates slide smoothly towards each other along the slide rod, thereby completing the fixing operation of the jack. This greatly simplifies the installation and fixing process of the jack, saves operation time and labor costs, can adapt to the clamping needs of jacks of various specifications and sizes, and expands the application range of this fixing structure.

[0012] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a partial cross-sectional view of the adjustment part of this utility model; Figure 3 This is a partial cross-sectional view of the support component of this utility model; Figure 4This is a schematic diagram of the connection structure of the adjusting part of this utility model; Figure 5 This is a partial structural diagram of the fixing part of this utility model.

[0015] The attached diagram lists the components represented by each number as follows: 111. Support frame; 112. Jack; 2. Adjustment unit; 21. Moving assembly; 211. Electric telescopic rod; 212. Cross plate; 213. Guide rod; 214. Hinge block; 215. L-shaped hinge rod; 216. Slot; 217. Transmission rod; 218. Connecting rod; 219. Support rod; 2110. Caster wheel; 22. Support assembly; 221. Cylindrical rod; 222. Support leg; 3. Fixing unit; 31. Fixing assembly; 311. Rectangular plate; 312. Slide rod; 313. Fixing plate; 32. Drive assembly; 321. Two-way threaded rod; 322. Motor. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figure 1-5 As shown, this utility model is an adjustable base for a trailer jack, including a support frame 111 and a jack 112 disposed on the top of the support frame 111, and also includes: an adjustment part 2, which is installed on the support frame 111; and a fixing part 3, which is disposed on the top of the support frame 111.

[0018] Adjustment unit 2 includes a moving assembly 21 mounted on support frame 111; and a support assembly 22 mounted on support frame 111. The moving assembly 21 includes an electric telescopic rod 211 fixedly connected to the inner top wall of support frame 111, with a cross plate 212 fixedly connected to the output end of the electric telescopic rod 211. Two guide rods 213 are located between the inner top and bottom walls of support frame 111, both of which penetrate the cross plate 212 and are connected to... The cross plate 212 is slidably connected, and two hinge blocks 214 are fixedly connected to the bottom inner wall of the support frame 111. Two L-shaped hinge rods 215 are hinged on each of the two hinge blocks 214. Two slots 216 are opened on each of the two L-shaped hinge rods 215. A transmission rod 217 is set in each of the two slots 216 that are close to each other. The two transmission rods 217 are fixedly connected to the left and right sides of the cross plate 212 respectively. Connecting parts are provided on the L-shaped hinge rods 215, and moving parts are provided on the support frame 111. Two L-shaped hinge rods 215 are mirror images of each other. The connecting element includes connecting rods 218 respectively disposed in two mutually spaced slots 216. The two connecting rods 218 are mirror images of each other. The moving element includes support rods 219 respectively fixedly connected to the front and rear sides of the two connecting rods 218. The bottoms of several support rods 219 extend beyond the support frame 111, and several support rods 219 are slidably connected to the support frame 111. The bottoms of several support rods 219 are rotatably connected to casters 2110. Four casters 2110 are provided and located below the support frame 111. The support assembly 22 includes a through-type... Two cylindrical rods 221 are mounted on the cross plate 212. Support legs 222 are fixedly connected to the left and right sides of the two cylindrical rods 221. The bottom of several support legs 222 extends to the outside of the support frame 111, and several support legs 222 are slidably connected to the support frame 111. The two cylindrical rods 221 are located at the front and rear sides of the electric telescopic rod 211, respectively. Four support legs 222 are provided. By setting the adjustment part 2, it can quickly switch to the moving state to facilitate the position adjustment of the jack 112, and can also be stably switched to the fixed state to ensure the stability of operation, adapting to the movement and positioning needs of the jack 112 in various scenarios.

[0019] The fixing part 3 includes a fixing component 31, which is installed on the top of the support frame 111; and a driving component 32, which is disposed on the fixing component 31. The fixing component 31 includes two rectangular plates 311 fixedly connected to the top of the support frame 111, and a slide rod 312 fixedly connected between the two rectangular plates 311. Two fixing plates 313 are slidably connected to the outer wall of the slide rod 312. The two fixing plates 313 are mirror images of each other. The driving component 32 includes a bidirectional threaded rod 321 rotatably connected between the two rectangular plates 311. The left side of the bidirectional threaded rod 321 passes through the rectangular plate 311 located on the left side. A motor 322 is fixedly connected to the left side of the rectangular plate 311 located on the left side. The output shaft of the motor 322 is fixedly connected to the bidirectional threaded rod 321 through a coupling. By setting the fixing part 3, the installation and fixing process of the jack 112 is greatly simplified, saving operation time and labor costs. It can adapt to the clamping needs of jacks 112 of various specifications and sizes, and expands the application range of this fixing structure.

[0020] It should be noted that the control of the electric telescopic rod 211 and the motor 322 in this application can both be achieved by using a program set in the control panel and inputting relevant parameters as needed for automated control. This control method can be achieved using existing technologies, such as PLC.

[0021] A specific application of this embodiment is as follows: In use, the jack 112 is placed on top of the support frame 111 and positioned between the two fixed plates 313. The motor 322 is started, and the motor 322 drives the bidirectional threaded rod 321 to rotate. The bidirectional threaded rod 321 drives the two fixed plates 313 to slide on the slide rod 312 and move closer to each other. Under the parallel design of the slide rod 312 and the bidirectional threaded rod 321, the two fixed plates 313 are ensured to move smoothly, thus fixing the jack 112. The electric telescopic rod 211 is then started, and the electric telescopic rod 211 pulls the cross plate 212 to slide upward on the two guide rods 213. The cross plate 212 moves upward through the transmission... With the cooperation of the moving rod 217 and the corresponding slot 216, the L-shaped hinge rod 215 is pushed to rotate on the hinge block 214. The L-shaped hinge rod 215 presses down on the connecting rod 218 through another slot 216. The connecting rod 218 pushes the support rod 219 to slide downward. The support rod 219 drives the caster wheel 2110 to contact the ground. During this process, the cross plate 212 drives the support leg 222 to move upward and away from the cylindrical rod 221, thereby pushing the support frame 111 to drive the jack 112 to move. When it is necessary to fix it, the position of the jack 112 is fixed by the support frame 111 through the reverse operation process.

[0022] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0023] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An adjustable base for a trailer jack, comprising a support frame (111) and a jack (112) disposed on top of the support frame (111), characterized in that, Also includes: Adjustment part (2), said adjustment part (2) is mounted on support frame (111); Fixing part (3), the fixing part (3) is provided on the top of the support frame (111); The adjustment unit (2) includes a moving component (21) which is mounted on a support frame (111); as well as A support assembly (22) is disposed on a support frame (111); The movable component (21) includes an electric telescopic rod (211) fixedly connected to the inner top wall of the support frame (111). A cross plate (212) is fixedly connected to the output end of the electric telescopic rod (211). Two guide rods (213) are located between the inner top and bottom walls of the support frame (111). Both guide rods (213) penetrate the cross plate (212) and are slidably connected to the cross plate (212). The inner bottom wall of the support frame (111) is fixedly connected to... There are two hinge blocks (214), and two L-shaped hinge rods (215) are hinged on each of the two hinge blocks (214). Two slots (216) are opened on each of the two L-shaped hinge rods (215). A transmission rod (217) is provided in each of the two slots (216) that are close to each other. The two transmission rods (217) are fixedly connected to the left and right sides of the cross plate (212) respectively. A connector is provided on the L-shaped hinge rod (215), and a movable part is provided on the support frame (111). The two L-shaped hinge rods (215) are mirror images of each other.

2. The adjustable base for a trailer jack according to claim 1, characterized in that, The fixing part (3) includes a fixing component (31) which is mounted on the top of the support frame (111); and A drive component (32) is disposed on a fixed component (31).

3. The adjustable base for a trailer jack according to claim 2, characterized in that, The support assembly (22) includes two cylindrical rods (221) passing through the cross plate (212). Support legs (222) are fixedly connected to the left and right sides of the two cylindrical rods (221). The bottom of several support legs (222) extends outside the support frame (111), and several support legs (222) are slidably connected to the support frame (111). Among them, two cylindrical rods (221) are located on the front and rear sides of the electric telescopic rod (211) respectively, and four support legs (222) are provided.

4. An adjustable base for a trailer jack according to claim 3, characterized in that, The fixing component (31) includes two rectangular plates (311) fixedly connected to the top of the support frame (111), and a slide rod (312) fixedly connected between the two rectangular plates (311). Two fixing plates (313) are slidably connected to the outer wall of the slide rod (312). The two fixing plates (313) are mirror images of each other.

5. An adjustable base for a trailer jack according to claim 4, characterized in that, The drive assembly (32) includes a bidirectional threaded rod (321) rotatably connected between two rectangular plates (311), the left side of which passes through the rectangular plate (311) located on the left side, and a motor (322) is fixedly connected to the left side of the rectangular plate (311) located on the left side. The output shaft of the motor (322) is fixedly connected to the bidirectional threaded rod (321) via a coupling.

6. An adjustable base for a trailer jack according to claim 5, characterized in that, The connector includes connecting rods (218) respectively disposed in two slots (216) that are far apart from each other. The two connecting rods (218) are mirror images of each other.

7. An adjustable base for a trailer jack according to claim 6, characterized in that, The movable component includes support rods (219) fixedly connected to the front and rear sides of the two connecting rods (218), the bottom of several support rods (219) extending out of the support frame (111), several support rods (219) being slidably connected to the support frame (111), and the bottom of several support rods (219) being rotatably connected to casters (2110). Four casters (2110) are provided and located below the support frame (111).

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