A lifting device with one-way limiting function

Abstract

This utility model discloses a lifting device with a one-way limiting function, including a pre-embedded lifting sleeve, a sleeve protection head, and a lifting connecting column. A piston connecting block is installed in the inner cavity channel of the lifting sleeve. The tail end of the lifting connecting column is installed inside the piston connecting block, and the head end of the lifting connecting column passes through the sleeve protection head. An air pump is installed in the lifting sleeve, and a one-way air inlet valve is installed at the air inlet of the air pump. One end of the one-way air inlet valve is provided with an air inlet pre-embedded pipeline. An electromagnetic control valve is opened at the exhaust port of the lifting sleeve body. This utility model uses an air pump for air inflation control, uses a one-way air inlet valve for air intake, and uses an electromagnetic control valve and a one-way exhaust valve to achieve single exhaust operation. In this way, position control can be performed in real time during the upward movement, with a one-way limiting function, which facilitates extension to different heights and has good usability.

Description

Technical Field

[0001] This utility model relates to the field of lifting device technology, and in particular to a lifting device with a one-way limiting function. Background Technology

[0002] In many garages or private areas, rising bollards are required at intersections. When an authorized vehicle arrives, the bollard is lowered below ground level to allow the vehicle to pass smoothly. After the vehicle has passed, the bollard is raised to prevent other vehicles from passing.

[0003] To address this issue, patent number CN202021552671.6 discloses a rising bollard. It solves the problem of complex structures and high failure rates in existing rising bollards. This rising bollard includes a pre-embedded pipe, within which a rising bollard is rotatably mounted. The bottom of the rising bollard has a limiting pin extending outwards from the outer wall, and the top of the pre-embedded pipe has a limiting plate with a channel for the limiting pin and the rising bollard to pass through. The limiting pin abuts against the top surface of the limiting plate. This design reduces the failure rate of the rising bollard.

[0004] The disadvantage of the aforementioned lifting bollard is that it cannot achieve a unidirectional restriction effect during use. Therefore, we have designed a lifting device with a unidirectional restriction function. Utility Model Content

[0005] The purpose of this invention is to provide a lifting device with a one-way limiting function to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a lifting device with a one-way limiting function, comprising a pre-embedded lifting sleeve, a sleeve protection head, and a lifting connecting column. The sleeve protection head is threadedly sealed to the top of the lifting sleeve. A piston connecting block is installed in the inner cavity channel of the lifting sleeve. The tail end of the lifting connecting column is installed inside the piston connecting block, such that the head end of the lifting connecting column passes through the sleeve protection head. An air pump is installed in the lifting sleeve. A one-way air inlet valve is installed at the air inlet of the air pump. One end of the one-way air inlet valve is provided with an air inlet pre-embedded pipeline. An electromagnetic control valve is opened at the exhaust port of the lifting sleeve body. One end of the electromagnetic control valve is provided with an exhaust pipeline. One end of the exhaust pipeline is provided with a one-way exhaust valve, and the one-way exhaust valve is connected to the air inlet pre-embedded pipeline.

[0007] Preferably, an air purification component is provided at the tail end of the air intake pre-embedded pipe. The air purification component includes a pre-embedded purification cylinder. A metal filter screen is provided at the opening of the pre-embedded purification cylinder. A porous purification cotton column connected to the pre-embedded purification cylinder is provided at the bottom end of the metal filter screen. The bottom end of the porous purification cotton column contacts a porous drying column located inside the pre-embedded purification cylinder.

[0008] Preferably, the bottom end of the pre-embedded purification cylinder is provided with a ceramic filter column, and the pre-embedded purification cylinder is connected to the tail end of the pre-embedded air inlet pipeline through the ceramic filter column.

[0009] Preferably, an inflatable sealing seat is installed in the inner cavity at the bottom end of the lifting sleeve, and an insertable inflatable nozzle is installed at the inflation end of the air pump. The insertable inflatable nozzle is inserted into the inflatable sealing seat so that the air pump can inflate the inner cavity of the lifting sleeve.

[0010] Preferably, a piston limit stop is installed on the top side wall of the inner cavity of the lifting sleeve, and the piston limit stop is connected to the notch of the piston connecting block.

[0011] Preferably, a hinge plate frame is installed at the head end of the lifting connecting column.

[0012] The technical effects and advantages of this utility model are as follows: By using an air pump for inflation control, using a one-way air intake valve for air intake, and using an electromagnetic control valve and a one-way exhaust valve for single exhaust operation, the position can be controlled in real time during the upward movement. It has a one-way limiting function, which makes it easy to extend to different heights and has good ease of use. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0014] Figure 2 This is a schematic diagram of the piston connecting block of this utility model.

[0015] Figure 3 This is a schematic diagram of the air purification component of this utility model.

[0016] Figure 4 This is a three-dimensional structural diagram of the hinge plate frame of this utility model.

[0017] In the diagram: 1. Lifting sleeve; 2. Air pump; 3. Sleeve protection head; 4. Lifting connecting column; 5. One-way air inlet valve; 6. Pre-embedded air inlet pipeline; 7. Pre-embedded purification cylinder; 8. One-way exhaust valve; 9. Electromagnetic control valve; 10. Exhaust pipeline; 11. Piston connecting block; 12. Piston limit stop; 13. Insert-type air inlet; 14. Air inlet sealing seat; 15. Ceramic filter column; 16. Metal filter screen; 17. Porous purification cotton column; 18. Porous drying column; 19. Hinge plate frame. Detailed Implementation

[0018] 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.

[0019] This utility model provides, for example Figure 1-4 The image shows a lifting device with a one-way limiting function; Example 1: The lifting device includes a pre-embedded lifting sleeve 1, a sleeve protection head 3, and a lifting connecting column 4. The sleeve protection head 3 is threadedly sealed to the top of the lifting sleeve 1. A piston connecting block 11 is installed in the inner cavity channel of the lifting sleeve 1. The tail end of the lifting connecting column 4 is installed inside the piston connecting block 11, and the head end of the lifting connecting column 4 passes through the sleeve protection head 3. An air pump 2 is installed in the lifting sleeve 1. A one-way air inlet valve 5 is installed at the air inlet of the air pump 2. An air inlet pre-embedded pipe 6 is provided at one end of the one-way air inlet valve 5. An electromagnetic control valve 9 is opened at the exhaust port of the cylinder part of the lifting sleeve 1. An exhaust pipe 10 is provided at one end of the electromagnetic control valve 9. A one-way exhaust valve 8 is provided at one end of the exhaust pipe 10. The one-way exhaust valve 8 is connected to the air inlet pre-embedded pipe 6.

[0020] This solution uses an air pump 2 for inflation control, a one-way air intake valve 5 for air intake, and a solenoid control valve 9 and a one-way exhaust valve 8 for single exhaust operation. This allows for real-time position control during the upward movement, with a one-way limit function, making it easy to extend to different heights and providing excellent ease of use.

[0021] Furthermore, in order to facilitate the air pump 2 to deliver compressed air into the interior of the lifting sleeve 1, thereby increasing the air pressure inside the lifting sleeve 1 and thus pushing the piston connecting block 11 to rise, causing the lifting connecting column 4 to rise, an air-filled sealing seat 14 is installed in the inner cavity at the bottom of the lifting sleeve 1. An insertable air nozzle 13 is installed at the air-filled end of the air pump 2. The insertable air nozzle 13 is inserted into the air-filled sealing seat 14 so that the air pump 2 can inflate the inner cavity of the lifting sleeve 1.

[0022] Furthermore, in order to prevent the piston connecting block 11 from contacting the sleeve protection head 3 during the rising process, a piston limit stop 12 is installed on the top side wall of the inner cavity of the lifting sleeve 1, and the piston limit stop 12 is connected to the notch of the piston connecting block 11.

[0023] Example 2: The lifting device includes a pre-embedded lifting sleeve 1, a sleeve protection head 3, and a lifting connecting column 4. The sleeve protection head 3 is threadedly sealed to the top of the lifting sleeve 1. A piston connecting block 11 is installed in the inner cavity of the lifting sleeve 1. The tail end of the lifting connecting column 4 is installed inside the piston connecting block 11, and the head end of the lifting connecting column 4 passes through the sleeve protection head 3. An air pump 2 is installed in the lifting sleeve 1. A one-way air inlet valve 5 is installed at the air inlet of the air pump 2. An air inlet pre-embedded pipe 6 is provided at one end of the one-way air inlet valve 5. An electromagnetic control valve 9 is opened at the exhaust port of the cylinder part of the lifting sleeve 1. An exhaust pipe is provided at one end of the electromagnetic control valve 9. One end of the exhaust pipe 10 is equipped with a one-way exhaust valve 8, which is connected to the pre-embedded intake pipe 6. An air purification component is installed at the end of the pre-embedded intake pipe 6. The air purification component includes a pre-embedded purification cylinder 7. A metal filter screen 16 is installed at the opening of the pre-embedded purification cylinder 7. A porous purification cotton column 17 connected to the pre-embedded purification cylinder 7 is installed at the bottom of the metal filter screen 16. The bottom of the porous purification cotton column 17 contacts a porous drying column 18 located inside the pre-embedded purification cylinder 7. A ceramic filter column 15 is installed at the bottom of the pre-embedded purification cylinder 7. The pre-embedded purification cylinder 7 is connected to the end of the pre-embedded intake pipe 6 through the ceramic filter column 15.

[0024] By installing air purification components, the incoming air can be filtered, purified, and dried, while further reducing bacteria in the air.

[0025] Example 3: The lifting device includes a lifting sleeve 1, a sleeve protective head 3, and a lifting connecting column 4. The sleeve protective head 3 is threadedly sealed to the top of the lifting sleeve 1. A piston connecting block 11 is installed in the inner cavity of the lifting sleeve 1. The tail end of the lifting connecting column 4 is installed inside the piston connecting block 11, and the head end of the lifting connecting column 4 passes through the sleeve protective head 3. An air pump 2 is installed in the lifting sleeve 1. The air inlet of the air pump 2 is equipped with an inlet and outlet valve that can be opened and closed. A hinge plate frame 19 is installed at the head end of the lifting connecting column 4. The hinge plate frame 19 facilitates the connection of moving parts and has good connection firmness.

[0026] Contents not described in detail herein are existing technologies known to those skilled in the art. The specific embodiments described herein are merely illustrative examples illustrating the spirit of this invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this invention or exceeding the scope defined by the appended claims.

Claims

1. A lifting device with one-way limiting function, comprising a pre-embeddable lifting cylinder sleeve (1), a cylinder sleeve protection head (3) and a lifting connecting column (4), the cylinder sleeve protection head (3) is threadedly sealed at the top end of the lifting cylinder sleeve (1), a piston connecting block (11) is installed at the inner cavity passage of the lifting cylinder sleeve (1), the tail end of the lifting connecting column (4) is installed at the inner side of the piston connecting block (11) and the head end of the lifting connecting column (4) passes through the cylinder sleeve protection head (3), characterized in that, The lifting sleeve (1) is equipped with an air pump (2), and the air inlet of the air pump (2) is equipped with a one-way air inlet valve (5). One end of the one-way air inlet valve (5) is provided with an air inlet pre-embedded pipe (6). An electromagnetic control valve (9) is provided at the exhaust port of the cylinder part of the lifting sleeve (1). One end of the electromagnetic control valve (9) is provided with an exhaust pipe (10). One end of the exhaust pipe (10) is provided with a one-way exhaust valve (8). The one-way exhaust valve (8) is connected to the air inlet pre-embedded pipe (6).

2. A lifting device with a one-way limiting function according to claim 1, characterized in that, An air purification component is provided at the end of the pre-embedded air intake pipe (6). The air purification component includes a pre-embedded purification cylinder (7). A metal filter (16) is provided at the opening of the pre-embedded purification cylinder (7). A porous purification cotton column (17) connected to the pre-embedded purification cylinder (7) is provided at the bottom of the metal filter (16). The bottom of the porous purification cotton column (17) contacts a porous drying column (18) located inside the pre-embedded purification cylinder (7).

3. A lifting device with a one-way limiting function according to claim 2, characterized in that, The bottom end of the pre-embedded purification cylinder (7) is provided with a ceramic filter column (15), and the pre-embedded purification cylinder (7) is connected to the tail end of the pre-embedded air inlet pipeline (6) through the ceramic filter column (15).

4. A lifting device with a one-way limiting function according to claim 1, characterized in that, An air-filled sealing seat (14) is installed at the inner cavity of the bottom end of the lifting sleeve (1), and an insertable air nozzle (13) is installed at the air-filled end of the air pump (2). The insertable air nozzle (13) is inserted into the air-filled sealing seat (14) so ​​that the air pump (2) can inflate the inner cavity of the lifting sleeve (1).

5. A lifting device with a one-way limiting function according to claim 1, characterized in that, A piston limit stop (12) is installed on the top side wall of the inner cavity of the lifting sleeve (1), and the piston limit stop (12) is connected to the notch of the piston connecting block (11).

6. A lifting device with a one-way limiting function according to claim 1, characterized in that, The head end of the lifting connecting column (4) is equipped with a hinge plate frame (19).

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