Wing opening type carriage four-corner telescopic stand column

Abstract

The utility model relates to the field of telescopic stand columns, in particular to a wing opening type carriage four-corner telescopic stand column which comprises an outer stand column, the back face of the outer stand column is fixedly connected with a rear cover plate, an inner stand column is slidably connected into the outer stand column, a hydraulic cylinder is arranged in the outer stand column, and the bottom of the hydraulic cylinder is hinged to the bottom of the outer stand column. A stress plate is fixedly connected between the inner walls of the inner stand columns, the output end of the hydraulic cylinder is fixedly connected with the bottom face of the stress plate, and the two positioning assemblies are arranged between the outer stand columns and the inner stand columns. By means of the positioning assembly, when the stand columns need to be used for lifting the compartment plate, only the hydraulic cylinder needs to be started to control the inner stand columns to move to the needed positions so that the inner stand columns can be automatically clamped with the outer stand columns, manual operation is not needed, the actual use scene is better met, and time and labor are saved; therefore, the subsequent cargo loading and unloading efficiency can be improved.

Description

Technical Field

[0001] This utility model relates to the field of telescopic columns, specifically to a telescopic column at the four corners of a wing-opening carriage. Background Technology

[0002] The retractable pillars at the four corners of the wing-opening cargo compartment play a vital role in logistics transportation and cargo loading and unloading. They can be adjusted according to the height and requirements of the cargo, increasing loading capacity and transportation efficiency. Simultaneously, the retractable function of the pillars makes loading and unloading more convenient and faster, reducing loading and unloading time and labor costs. The extended pillars also increase the stability of the cargo compartment, improving safety during transportation. The supporting role of the pillars is particularly important when transporting tall or heavy cargo. Furthermore, the retractable function of the pillars can adapt to different loading and unloading equipment and operating environments. Whether in warehouses, docks, or construction sites, the height of the pillars can be adjusted according to actual conditions to facilitate cargo loading, unloading, and transportation, thereby meeting diverse transportation needs.

[0003] A search revealed that patent document CN218258418U discloses a four-corner telescopic pillar for a wing-opening carriage, including an outer pillar, an inner pillar, and a hydraulic cylinder. The outer pillar includes a front U-shaped profile and a rear cover plate. The rear cover plate is fixedly connected to the rear end of the front U-shaped profile. The front end face of the front U-shaped profile has multiple positioning holes from top to bottom. The bottom of the outer pillar has a hinge hole that penetrates the rear cover plate and the front U-shaped profile. This new invention can expand the working space and improve the lifting performance of the carriage roof.

[0004] The aforementioned existing technologies often have the following problems when used:

[0005] The existing telescopic columns at the four corners of the wing-opening cargo compartment are used to push the inner column out from the outer column by a hydraulic cylinder to achieve the telescopic function. After the telescopic function is completed, it is necessary to fix the completed state. The existing technology uses positioning pins and positioning holes to fix the extended state of the inner column. This operation method is not convenient enough, and the operation of inserting the positioning pins into the positioning holes on both sides is time-consuming, which will affect the efficiency of subsequent loading and unloading of goods. Summary of the Invention

[0006] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a telescopic column at the four corners of the wing-opening carriage, which can effectively solve the problem that the positioning operation of the telescopic column is not convenient enough in the existing technology.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] This utility model provides four telescopic pillars at the corners of a wing-opening carriage, including an outer pillar, a rear cover plate fixedly connected to the back of the outer pillar, an inner pillar slidably connected inside the outer pillar, a hydraulic cylinder inside the outer pillar, the bottom of the hydraulic cylinder being hinged to the bottom of the outer pillar, a force-bearing plate fixedly connected to the inner wall of the inner pillar, and the output end of the hydraulic cylinder being fixedly connected to the bottom surface of the force-bearing plate.

[0009] Two positioning components are provided, which are located between the outer column and the inner column.

[0010] According to the above-mentioned four-corner telescopic pillars of a wing-opening carriage, the positioning component includes a through groove on the side wall of the outer pillar, an inclined locking block slidably connected in the through groove, a guide rod fixedly connected to the side wall of the outer pillar, a first fixing plate fixedly connected to the side wall of the inclined locking block away from the inner pillar, a second fixing plate fixedly connected to the side wall of the first fixing plate, the second fixing plate slidably sleeved on the guide rod, a spring fixedly connected between the side wall of the second fixing plate and the side wall of the outer pillar, and multiple positioning holes equidistantly provided on the side wall of the inner pillar.

[0011] According to the above-mentioned four-corner telescopic columns of a wing-opening carriage, the front end face of the outer column is provided with an oil port hole, which is matched with a hydraulic cylinder.

[0012] According to the above-mentioned four-corner telescopic pillars of a wing-opening carriage, the circumferential sidewall of the inner pillar is fitted with the inner wall of the outer pillar, and the two positioning components are respectively located on both sides of the inner pillar.

[0013] According to the above-mentioned four-corner telescopic pillars of a wing-opening carriage, the side wall of the inclined locking block is fitted with the inner wall of the through groove, and the spring is sleeved on the guide rod.

[0014] According to the above-mentioned four-corner telescopic pillars of a wing-opening carriage, multiple positioning holes in the positioning assembly are all engaged with inclined locking blocks.

[0015] The technical solution provided by this utility model has the following advantages compared with the known prior art:

[0016] This utility model, through its positioning components, allows the inner column to be moved to the desired position simply by activating the hydraulic cylinder when the column needs to be used to raise the box panel. The multiple positioning holes of the inner column, in conjunction with two inclined locking blocks, can automatically lock in place without manual operation. This is more in line with actual usage scenarios and saves time and effort, thereby improving the efficiency of subsequent loading and unloading of goods. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.

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

[0019] Figure 2 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 3 This is a three-dimensional structural schematic diagram of the present invention from another perspective;

[0021] Figure 4 for Figure 1 Enlarged view of point A in the middle.

[0022] Attached reference numerals: 1. Outer column; 2. Rear cover plate; 3. Inner column; 4. Hydraulic cylinder; 5. Force plate; 6. Through groove; 7. Angled locking block; 8. Guide rod; 9. Fixing plate No. 1; 10. Fixing plate No. 2; 11. Spring; 12. Positioning hole; 13. Oil port. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0024] The present invention will be further described below with reference to the embodiments.

[0025] Example: Refer to Figures 1 to 4 A retractable four-corner pillar for a wing-opening carriage includes an outer pillar 1, a rear cover plate 2 fixedly connected to the back of the outer pillar 1, an inner pillar 3 slidably connected inside the outer pillar 1, a hydraulic cylinder 4 inside the outer pillar 1, the bottom of the hydraulic cylinder 4 being hinged to the bottom of the outer pillar 1, a force-bearing plate 5 fixedly connected to the inner wall of the inner pillar 3, the output end of the hydraulic cylinder 4 being fixedly connected to the bottom surface of the force-bearing plate 5, and an oil port 13 on the front end face of the outer pillar 1, the oil port 13 cooperating with the hydraulic cylinder 4;

[0026] Two positioning components are disposed between the outer column 1 and the inner column 3. Each positioning component includes a through groove 6 on the side wall of the outer column 1, within which an inclined locking block 7 is slidably connected. A guide rod 8 is fixedly connected to the side wall of the outer column 1. A first fixing plate 9 is fixedly connected to the side wall of the inclined locking block 7 away from the inner column 3. A second fixing plate 10 is fixedly connected to the side wall of the first fixing plate 9. The second fixing plate 10 is slidably sleeved on the guide rod 8. The side wall of the second fixing plate 10 is flush with the side wall of the outer column 1. A spring 11 is fixedly connected between the inner column 3 and the outer column 1. The inner column 3 has multiple positioning holes 12 at equal intervals on its side wall. The circumferential side wall of the inner column 3 fits against the inner wall of the outer column 1. The two positioning components are located on both sides of the inner column 3, so that the inner column 3 can be extended and retracted smoothly and have sufficient support. The side wall of the inclined locking block 7 fits against the inner wall of the through groove 6. The spring 11 is sleeved on the guide rod 8 to improve the stability and support effect of the positioning components. The multiple positioning holes 12 in the positioning components are all matched with the inclined locking block 7.

[0027] The working principle of this utility model is as follows: When it is necessary to lift the box panel, the hydraulic cylinder 4 is activated. The output end of the hydraulic cylinder 4 drives the inner column 3 to move upward through the force plate 5, thereby lifting the box panel. When the inner column 3 moves upward, the positioning holes 12 on both sides of the inner column 3 move accordingly, thereby moving relative to the two inclined locking blocks 7. When the two opposing positioning holes 12 pass the two inclined locking blocks 7, the positioning holes 12 move upward, causing their inner bottom surface to contact the inclined surface of the inclined locking block 7, thus applying pressure and causing them to move towards the outer column 1, until the pair of positioning holes 12 pass the inclined locking blocks 7. After continuing to move, the two inclined locking blocks 7 will be under the action of the two springs 11, in the next... When the positioning hole 12 is reached, it springs back into the positioning hole 12. As the inner column 3 moves upward, the above operation will be repeated until the inner column 3 moves to a suitable height and both inclined locking blocks 7 are also in the positioning hole 12. At this time, the inner column 3 stops moving, and the inner top surface of the two positioning holes 12 is in contact with the upper surface of the two inclined locking blocks 7. The inner column 3 locks in place under its own weight, thus completing the positioning operation of the inner column 3. No manual operation is required, which is convenient and efficient. When it is necessary to retract the inner column 3, the two inclined locking blocks 7 are pulled out of the positioning hole 12 by the two second fixing plates 10. At this time, the positioning holes 12 on both sides of the inner column 3 are no longer restricted by the locking, so that the inner column 3 can be retracted.

[0028] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of this utility model.

Claims

1. A type of telescopic pillar at the four corners of a wing-opening carriage, characterized in that, include: An outer column (1) is fixedly connected to a rear cover plate (2) on its back side. An inner column (3) is slidably connected inside the outer column (1). A hydraulic cylinder (4) is provided inside the outer column (1). The bottom of the hydraulic cylinder (4) is hinged to the bottom of the outer column (1). A force-bearing plate (5) is fixedly connected between the inner walls of the inner column (3). The output end of the hydraulic cylinder (4) is fixedly connected to the bottom surface of the force-bearing plate (5). Two positioning components are provided between the outer column (1) and the inner column (3).

2. The retractable pillars at the four corners of a wing-opening carriage according to claim 1, characterized in that, The positioning component includes a through groove (6) on the side wall of the outer column (1), a slidably connected locking block (7) in the through groove (6), a guide rod (8) fixedly connected to the side wall of the outer column (1), a first fixing plate (9) fixedly connected to the side wall of the slidably connected locking block (7) away from the inner column (3), a second fixing plate (10) fixedly connected to the side wall of the first fixing plate (9), the second fixing plate (10) slidably sleeved on the guide rod (8), a spring (11) fixedly connected between the side wall of the second fixing plate (10) and the side wall of the outer column (1), and a plurality of positioning holes (12) are provided at equal intervals on the side wall of the inner column (3).

3. The retractable pillars at the four corners of a wing-opening carriage according to claim 1, characterized in that, The front end face of the outer column (1) is provided with an oil port (13), which is matched with the hydraulic cylinder (4).

4. The retractable pillars at the four corners of a wing-opening carriage according to claim 1, characterized in that, The circumferential sidewall of the inner column (3) is attached to the inner wall of the outer column (1), and the two positioning components are located on both sides of the inner column (3).

5. The retractable pillars at the four corners of a wing-opening carriage according to claim 2, characterized in that, The side wall of the inclined locking block (7) is in contact with the inner wall of the through groove (6), and the spring (11) is sleeved on the guide rod (8).

6. The retractable pillars at the four corners of a wing-opening carriage according to claim 2, characterized in that, The multiple positioning holes (12) in the positioning component are all engaged with the inclined locking block (7).

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