Lifting column rotating mechanism

Abstract

The utility model discloses a lifting column rotating mechanism, and particularly relates to the technical field of lifting columns, the lifting column rotating mechanism comprises a floor, the inner surface of the floor is in sliding connection with a blocking column, the lower part of the outer surface of the blocking column is in sliding connection with a limiting structure, and the inner surface of the blocking column and the lower end of the blocking column are provided with a driving structure together. A lifting structure slidably connected with the inner surface of the stopping column is arranged on the inner surface of the driving structure. According to the lifting column rotating mechanism, the driving structure and the lifting structure are matched to drive the blocking column to ascend and descend, the limiting structure and the lifting structure are matched to achieve automatic positioning, and the situation that in the using process, the use and attractiveness are affected due to the fact that the lifting heights of multiple sets of equipment are inconsistent is avoided; and after the upper ring, the compression spring and the lower ring are matched with the sliding groove, the Z-shaped rod and the sliding rod to ascend or descend to the preset height, the Z-shaped rod and the sliding rod are used for acting on the spring ejector pin to enable the threaded ring to stop ascending, and therefore the automatic positioning and automatic stopping functions are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting columns, and particularly relates to a lifting column rotating mechanism. Background Art

[0002] A lifting column is an intelligent safety protection device, mainly used to control vehicle access and ensure the safety of specific areas. It is made of high-quality materials, has a strong and durable structure, and has the ability to withstand high-intensity impacts. The lifting column can be quickly lifted and lowered through a control system, with simple operation and rapid response. When it is necessary to restrict vehicle entry, the lifting column can quickly rise to effectively prevent unauthorized vehicles from passing; when vehicle passage is allowed, the lifting column can smoothly lower to restore road traffic. Lifting columns are widely used in government agencies, important facilities, commercial areas and other places to provide safe and reliable protection for these areas.

[0003] Chinese patent document CN 213709289 U discloses a lifting column, which includes a fixed barrel, a hydraulic lifting device and a column body. The first state of the lifting column: the hydraulic lifting device drives upward, and the column body extends out of the fixed barrel; the second state of the lifting column: the hydraulic lifting device drives downward, and the column body contracts in the fixed barrel; the hydraulic lifting device includes a lifting rod and a hydraulic movement core, and the hydraulic lifting device is installed in the fixed barrel; the column body further includes a top end and a connection end, and the connection end of the column body is connected to the lifting rod; the lifting equipment provided in the above-mentioned document has strong anti-collision performance, also improves the weakness of poor waterproof performance, and has a low-temperature protection function, and can be used normally in harsh low-temperature weather.

[0004] Although the equipment in the above-mentioned document can block vehicles, it cannot stop automatically when used in multiple groups. When the same drive is used between multiple lifting columns, the lifting heights will be inconsistent, thus affecting the aesthetic degree and reducing the blocking effect. Summary of the Invention

[0005] The main purpose of the utility model is to provide a lifting column rotating mechanism, which can effectively solve the problem that the traditional equipment cannot stop automatically during the lifting process.

[0006] To achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0007] A lifting column rotating mechanism includes a floor, a blocking column is slidably connected to the inner surface of the floor, a limiting structure is slidably connected to the lower part of the outer surface of the blocking column, a driving structure is provided in the inner surface of the blocking column and at the lower end of the blocking column, and a lifting structure slidably connected to the inner surface of the blocking column is provided in the inner surface of the driving structure.

[0008] Preferably, a straight cylinder is fixedly connected to the top wall of the inner cavity of the blocking column. The lower end of the straight cylinder is rotationally connected to the lifting structure. The left and right parts of the inner cavity of the blocking column are symmetrically provided with chutes up and down.

[0009] Preferably, the driving structure includes a limiting column slidably connected to the inner surface. The lower end of the limiting column is fixedly connected to a base. The right end of the base is fixedly connected to a motor. The output end of the motor penetrates through the right end of the base and extends into the inner cavity of the base and is fixedly connected to a worm. The rear part of the outer surface of the motor is engaged with a worm gear. The inner surface of the worm gear is fixedly connected.

[0010] Preferably, the lifting structure includes a threaded rod fixedly connected to the inner surface of the worm gear. The outer surface of the threaded rod is threadedly connected with a threaded ring. The inner surface of the threaded ring is slidably connected to the lower end of the straight cylinder. The lower part of the inner surface of the straight cylinder is symmetrically slidably connected with spring ejectors left and right. The lower ends of the two spring ejectors are arc-shaped and face opposite directions.

[0011] Preferably, the limiting structure includes a compression spring. The upper end of the compression spring is fixedly connected to an upper ring slidably connected to the inner surface of the adjacent chute. The lower end of the compression spring is fixedly connected to a lower ring slidably connected to the inner surface of the adjacent chute.

[0012] Preferably, the right part of the inner surface of the upper ring is rotationally connected to a sliding rod rotationally connected to the spring ejector on the same side. A chute slidably connected to the inner surface of the chute is provided in the middle of the sliding rod.

[0013] Preferably, the left part of the inner surface of the lower ring is fixedly connected to a Z-shaped rod fixedly connected to the spring ejector on the same side.

[0014] Preferably, the lower part of the inner surface of the threaded ring is symmetrically provided with arc-shaped grooves facing opposite directions. The arc-shaped grooves are adapted to the spring ejectors.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] 1. The utility model drives the blocking column to lift by the cooperation of the driving structure and the lifting structure, and realizes automatic positioning by the cooperation of the limiting structure and the lifting structure, avoiding the inconsistent lifting heights of multiple sets of equipment during use, which affects the use and aesthetics.

[0017] 2. After the upper ring, the compression spring, and the lower ring rise or fall to a predetermined height through the cooperation with the chute, the Z-shaped rod, and the sliding rod, the threaded ring stops rising by the action of the Z-shaped rod and the sliding rod on the spring ejector, thereby realizing the functions of automatic positioning and automatic stop. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 Schematic cross-sectional view of the internal structure of the present utility model;

[0020] Figure 3 Schematic explosion view of the present utility model;

[0021] Figure 4 Schematic structural view of the limit structure of the present utility model;

[0022] Figure 5 Schematic explosion view of the thread ring and the spring ejector pin of the present utility model.

[0023] In the figure: 1, blocking column; 11, sliding groove; 12, straight cylinder; 2, limit structure; 21, upper ring; 22, compression spring; 23, lower ring; 24, Z-shaped rod; 25, sliding rod; 3, driving structure; 31, base; 32, motor; 33, worm; 34, worm gear; 35, limit column; 36, limit block; 4, floor; 5, lifting structure; 51, threaded rod; 52, thread ring; 53, spring ejector pin; 54, arc-shaped groove. Detailed implementation manners

[0024] In order to make the technical means, creative features, achieved purposes and functions of the present utility model easy to understand, the present utility model will be further described below in conjunction with the detailed implementation manners.

[0025] As Figure 1 and Figure 2 shown, a lifting column rotating mechanism includes a floor 4, a blocking column 1 is slidably connected to the inner surface of the floor 4, a limit structure 2 is slidably connected to the lower part of the outer surface of the blocking column 1, a driving structure 3 is provided on the inner surface of the blocking column 1 and at the lower end of the blocking column 1, and a lifting structure 5 slidably connected to the inner surface of the driving structure 3 is provided on the inner surface of the driving structure 3.

[0026] The lifting columns are generally installed below the plane of the floor 4 and are raised to a certain height during use to achieve the purpose of blocking vehicles. Generally, multiple lifting columns are linearly distributed and installed together. When multiple lifting columns are driven by the same driving device, there will be a situation where the front part reaches the position while the rear part has not been fully raised, which not only affects the use, reduces the blocking effect, but also affects the aesthetics to a certain extent.

[0027] To realize the driving of the lifting column, as Figure 2 and Figure 3 shown, the driving structure 3 includes a limit column 35 slidably connected to the inner surface of 1, the lower end of the limit column 35 is fixedly connected to a base 31, the right end of the base 31 is fixedly connected to a motor 32, the output end of the motor 32 penetrates the right end of the base 31 and extends into the inner cavity of the base 31 and is fixedly connected to a worm 33, the rear part of the outer surface of the motor 32 is engaged with a worm gear 34, and the inner surface of the worm gear 34 is fixedly connected to 5.

[0028] The rotation of the motor 32 drives the rotation of the worm 33, and the meshing of the worm 33 and the worm wheel 34 drives the rotation of the worm wheel 34, thereby driving the lifting structure 5 to operate;

[0029] Among them, the worm 33 is not directly driven by the motor 32. In actual use, multiple worms 33 can be fixedly connected together, and one motor 32 drives multiple worms 33, so as to achieve multi-group synchronous lifting.

[0030] The provided limit posts 35 and limit blocks 36 can limit the blocking post 1 during the operation of the lifting structure 5 to drive the blocking post 1 to lift, preventing the blocking post 1 from rotating following the operation of the lifting structure 5.

[0031] To drive the blocking post 1 to lift, as Figure 3 , Figure 4 and Figure 5 shown, the lifting structure 5 includes a threaded rod 51 fixedly connected to the inner surface of the worm wheel 34. A threaded ring 52 is threadedly connected to the outer surface of the threaded rod 51. The inner surface of the threaded ring 52 is slidably connected to the lower end of the straight cylinder 12. Two spring ejector pins 53 are symmetrically slidably connected to the lower part of the inner surface of the straight cylinder 12. The lower ends of the two spring ejector pins 53 are both arc-shaped and face opposite directions;

[0032] As Figure 5 shown, arc-shaped grooves 54 facing opposite directions are symmetrically formed in the lower part of the inner surface of the threaded ring 52. The arc-shaped grooves 54 are adapted to the spring ejector pins 53.

[0033] When the threaded rod 51 rotates driven by the worm wheel 34, it will synchronously drive the threaded ring 52 to rotate. When the blocking post 1 is at the lowest position, the arc-shaped groove 54 on the left side of the threaded ring 52 meshes with the spring ejector pin 53. At this time, the arc-shaped groove 54 is limited by the spring ejector pin 53, and the threaded ring 52 cannot rotate. Through the threaded action of the threaded rod 51 and the threaded ring 52, the threaded ring 52 will lift the straight cylinder 12 under the action of the threaded rod 51.

[0034] A straight cylinder 12 is fixedly connected to the top wall of the inner cavity of the blocking post 1. The lower end of the straight cylinder 12 is rotatably connected to the lifting structure 5. Sliding grooves 11 are symmetrically formed in the upper and lower parts of the left and right parts of the inner cavity of the blocking post 1.

[0035] The inner wall of the straight cylinder 12 is slidably connected to the threaded rod 51. When the threaded ring 52 rises under the action of the threaded rod 51, it will push the straight cylinder 12 to rise synchronously with the threaded ring 52;

[0036] Meanwhile, when the blocking post 1 slides on the outer wall of the limit post 35, it will be limited by the limit block 36. Synchronously, the spring ejector pin 53 slidingly connected to the inner wall of the straight cylinder 12 will also be limited. Thus, when the arc-shaped groove 54 engages with the spring ejector pin 53 on the same side, the arc-shaped groove 54 will limit the threaded ring 52, so that when the threaded rod 51 acts on the threaded ring 52, the threaded ring 52 can move up or down.

[0037] As Figure 4 shown, the limiting structure 2 includes a compression spring 22. The upper end of the compression spring 22 is fixedly connected to an upper ring 21 that is slidably connected to the inner surface of the adjacent chute 11, and the lower end of the compression spring 22 is fixedly connected to a lower ring 23 that is slidably connected to the inner surface of the adjacent chute 11.

[0038] When the blocking post 1 rises to the high position, the upper ring 21 slides downward relatively and drives one end of the slide rod 25 to move downward, and the end of the slide rod 25 connected to the spring ejector pin 53 moves upward. At this time, the limit of the spring ejector pin 53 on the arc-shaped groove 54 fails, and the threaded rod 51 continues to rotate without driving the threaded ring 52 to rise.

[0039] As Figure 4 shown, the right part of the inner surface of the upper ring 21 is rotatably connected to a slide rod 25 that is rotatably connected to the spring ejector pin 53 on the same side. A chute that is slidably connected to the inner surface of the chute 11 is provided in the middle of the slide rod 25.

[0040] The left part of the inner surface of the lower ring 23 is fixedly connected to a Z-shaped rod 24 that is fixedly connected to the spring ejector pin 53 on the same side.

[0041] Similarly, when the blocking post 1 is in the low position, the lower ring 23 slides upward relatively and drives the Z-shaped rod 24 to move upward. At this time, the spring ejector pin 53 fixedly connected to the Z-shaped rod 24 moves upward, canceling the limit on the arc-shaped groove 54.

[0042] It should be particularly noted that the arc-shaped grooves 54 on both sides are in opposite directions, and their limiting directions are determined according to the rotation direction. However, when the threaded ring 52 descends, the rotation direction is the same as the direction of the spring ejector pin 53 connected to the Z-shaped rod 24, and is opposite to the limiting direction of the spring ejector pin 53 connected to the slide rod 25. That is, during the descending process, the spring ejector pin 53 does not have a limiting effect on the arc-shaped groove 54 on its same side.

[0043] Working principle: The motor 32 drives the worm 33 to rotate, and thereby drives the worm gear 34 to rotate. The worm gear 34 drives the threaded rod 51 to rotate and drives the threaded ring 52 to move up and down, so as to push the straight cylinder 12 through the threaded ring 52 and thereby drive the blocking post 1 to rise; the upper ring 21, the compression spring 22, the lower ring 23 and the chute 11 cooperate with each other to achieve automatic stop in place.

[0044] The foregoing has shown and described the basic principles, main features, and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and all these changes and improvements fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A lifting column rotation mechanism, comprising a floor (4), characterized in that: The inner surface of the floor (4) is slidably connected to a blocking column (1), the lower portion of the outer surface of the blocking column (1) is slidably connected to a limiting structure (2), the inner surface of the blocking column (1) and the lower end of the blocking column (1) are provided with a driving structure (3), and the inner surface of the driving structure (3) is provided with a lifting structure (5) slidably connected to the inner surface of the blocking column (1).

2. The lifting column rotation mechanism according to claim 1, characterized in that: A straight cylinder (12) is fixedly connected to the top wall of the inner cavity of the blocking column (1), and the lower end of the straight cylinder (12) is rotatably connected to the lifting structure (5). The left and right parts of the inner cavity of the blocking column (1) are both symmetrically provided with sliding grooves (11).

3. A lifting column rotation mechanism according to claim 2, characterized in that: The driving structure (3) comprises a limit column (35) slidably connected to the inner surface of 1, the lower end of the limit column (35) is fixedly connected to the base (31), the right end of the base (31) is fixedly connected to the motor (32), the output end of the motor (32) passes through the right end of the base (31) and extends to the inner cavity of the base (31) and is fixedly connected to the worm (33), the rear part of the outer surface of the motor (32) is meshed with a worm wheel (34), and the inner surface of the worm wheel (34) is fixedly connected to 5.

4. The lifting column rotation mechanism according to claim 3, characterized in that: The lifting structure (5) comprises a threaded rod (51) fixedly connected to the inner surface of the worm gear (34); the outer surface of the threaded rod (51) is threadedly connected to a threaded ring (52); the inner surface of the threaded ring (52) is slidably connected to the lower end of a straight tube (12); the lower part of the inner surface of the straight tube (12) is symmetrically slidably connected to spring ejectors (53); the lower ends of the two spring ejectors (53) are both arc surfaces and face opposite directions.

5. The lifting column rotation mechanism according to claim 4, characterized in that: The limiting structure (2) comprises a compression spring (22), the upper end of the compression spring (22) being fixedly connected to an upper ring (21) slidably connected to the inner surface of an adjacent slide groove (11), and the lower end of the compression spring (22) being fixedly connected to a lower ring (23) slidably connected to the inner surface of an adjacent slide groove (11).

6. The lifting column rotating mechanism according to claim 5, characterized in that: The right portion of the inner surface of the upper ring (21) is rotatably connected to a slide rod (25) rotatably connected to the spring ejector pin (53) on the same side, and a slide groove is provided in the middle portion of the slide rod (25) for sliding connection to the inner surface of the slide groove (11).

7. The lifting column rotating mechanism according to claim 5, characterized in that: A Z-shaped rod (24) is fixedly connected to the left portion of the inner surface of the lower ring (23) and is fixedly connected to the spring ejector pin (53) on the same side.

8. The lifting column rotating mechanism according to claim 4, characterized in that: The lower portion of the inner surface of the threaded ring (52) is symmetrically provided with arcuate grooves (54) facing opposite directions, and the arcuate grooves (54) are adapted to fit the spring ejector pin (53).

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