Driving structure of pneumatic ground column

Abstract

The utility model relates to a driving structure of a pneumatic ground column. Comprising a fixed base plate fixedly connected with a fixed barrel, a first-stage sliding rail with a first-stage sliding block and an air cylinder are installed on the fixed base plate, the first-stage lifting plate is fixedly connected with the first-stage sliding block, and the end portion of a piston rod of the air cylinder is fixedly connected with the side portion of the first-stage lifting plate. The first-stage lifting plate is provided with a second-stage sliding rail with a second-stage sliding block and an electric driving lifting assembly, the second-stage lifting plate is fixedly connected with the second-stage sliding block, the side portion of the second-stage lifting plate is connected with the electric driving lifting assembly, and the second-stage lifting plate is fixedly connected with the lifting cylinder. The utility model provides a driving structure of a pneumatic ground column, which is quick in action response, stable in lifting action and capable of effectively keeping the lifting state of the ground column.

Description

TECHNICAL FIELD

[0001] The utility model belongs to traffic roadblock facility technical field, especially relate to a drive structure of pneumatic ground column. BACKGROUND

[0002] The lifting ground column is also called lifting road pile, anti-collision road pile, lifting column and isolation pile, and is widely applied to many occasions such as urban traffic, army and important government gate and periphery, pedestrian street, highway toll station, airport, school, bank and parking lot.The traffic order and the safety of main facilities and places are effectively guaranteed by limiting the passing vehicles.In structure, the lifting ground column is composed of ground column body and driving device, and the driving device drives the movable ground column in the ground column body to perform lifting action.

[0003] In order to solve the defects that hydraulic facilities are difficult to construct, the construction cost is high and not easy to control, the pneumatic lifting address appears in the prior art.The specification of Chinese utility model patent CN218667282U discloses a kind of pneumatic ground column: including multiple ground column devices and compressed gas station, also including gas valve device and manual control valve;Ground column device includes external cylinder, lifting cylinder is arranged in its inside, and gas connection is also installed on the bottom side wall of external cylinder.The pneumatic ground column disclosed in the utility model patent is connected between fixed cylinder and lifting cylinder using sealing structure, and the lifting of ground column is controlled by injecting compressed air into cavity or discharging air from cavity.The reliability of this kind of lifting driving form is low: since there is aging problem in sealing structure, when sealing ring fails, cavity and outside are substantially in communication, which leads to internal air leakage, so that ground column cannot effectively maintain current height, resulting in lifting ground column failure.

[0004] In summary, a new type of driving structure for pneumatic ground column needs to be developed and designed to solve the above technical problems. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of drive structure of pneumatic ground column, action response is fast, lifting action is stable and can effectively keep the lifting state of ground column.

[0006] The technical scheme adopted by the utility model is: a kind of drive structure of pneumatic ground column, including the fixed connection of fixed base plate with fixed cylinder, and fixed base plate is installed with first level sliding rail with first level slider and air cylinder, also including first level lifting plate and first level lifting plate is fixedly connected with first level slider, the side of the piston rod end of air cylinder and first level lifting plate is fixedly connected, and first level lifting plate is installed with second level sliding rail with second level slider and electric drive lifting assembly, also including second level lifting plate and second level lifting plate is fixedly connected with second level slider, the side of second level lifting plate is connected with electric drive lifting assembly, and second level lifting plate is fixedly connected with lifting cylinder.

[0007] Preferably, the electric drive lifting assembly includes a drive pulley installed on the upper part of the first-stage lifting plate and a driven pulley installed on the lower part of the first-stage lifting plate. A transmission belt is provided between the drive pulley and the driven pulley, and the transmission belt is fixedly connected to the side of the second-stage lifting plate by a clamping block. A drive motor for driving the drive pulley is also provided on the upper back of the first-stage lifting plate.

[0008] Preferably, a window is provided on the upper side of the first-stage lifting plate, and a bearing seat is provided in the window. The axle of the drive pulley is installed in the bearing seat, and the drive motor is installed on the back of the bearing seat. Multiple sets of adjustment holes are provided on both sides of the window along the vertical direction, and the bearing seat is fixed in one set of adjustment holes by screws on the side.

[0009] Preferably, a fixing seat is provided on the side of the fixing base plate, the cylinder body of the cylinder is fixedly connected to the fixing seat, a support is installed on the upper side of the first-stage lifting plate, and the upper end of the piston rod of the cylinder is fixedly connected to the support.

[0010] Preferably, a lower connecting block is installed on the inner wall of the fixed cylinder, and an mounting hole is provided on the fixed base plate. The fixed base plate is fixedly connected to the lower connecting block by countersunk screws. An upper connecting block is installed on the inner wall of the lifting cylinder, and a connecting hole is provided on the secondary lifting plate. The secondary lifting plate is fixedly connected to the upper connecting block by countersunk screws.

[0011] Preferably, an air circuit connector and an electrical terminal are installed at the bottom of the side wall of the fixed cylinder. The cylinder is connected to the air circuit connector through an internal air pipe, and the drive motor is connected to the electrical terminal through an internal cable.

[0012] The advantages and positive effects of this utility model are:

[0013] This invention provides a drive structure for a pneumatic bollard, applicable to pneumatic lifting bollards, providing lifting drive function. This drive structure is constructed based on a cylinder and an electric lifting assembly, solving the drawbacks of existing pneumatic bollard installations that use the air chamber between the fixed and lifting cylinders as the inflation / deflation chamber. Existing pneumatic bollards suffer from air leakage due to aging of the sealing structure between the fixed and lifting cylinders, making it difficult to maintain internal air pressure when the lifting cylinder is in the lifting state. This drive structure eliminates the aforementioned problem, effectively maintaining the bollard in the lifting state.

[0014] The driving structure is a dual-mode driving form integrating pneumatic driving and electric driving, sliding rails and sliding blocks are arranged between the fixed base plate and the first lifting plate and between the first lifting plate and the second lifting plate, stability of the column during lifting operation is ensured, and the lifting operation is stable. On the other hand, the pneumatic driving and the electric driving can be used as backup for each other, or can be used simultaneously, the reliability of operation can be improved when used as backup for each other (for example, when the gas circuit is damaged, the electric driving form can be used for control), and the lifting speed of the column during lifting operation can be improved when used simultaneously, and fast lifting and fast lowering are realized. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a three-dimensional structure schematic diagram of the utility model;

[0016] Figure 2 is a front view structure schematic diagram of the utility model;

[0017] Figure 3 is an application state structure schematic diagram of the utility model.

[0018] In the drawings:

[0019] 1, first sliding rail; 2, air cylinder; 3, fixed base plate; 4, first sliding block; 5, fixed seat; 6, mounting hole; 7, connecting hole; 8, first lifting plate; 9, driven pulley; 10, transmission belt; 11, second sliding rail; 12, driving pulley; 13, support; 14, second sliding block; 15, second lifting plate; 16, clamping block; 17, driving motor; 18, lifting cylinder; 19, upper connecting block; 20, gland; 21, sealing ring; 22, fixed cylinder; 23, lower connecting block; 24, gas connection; 25, power terminal. DETAILED DESCRIPTION

[0020] In order to further understand the invention content, characteristics and effects of the utility model, the following examples are used for detailed description.

[0021] Please refer to Figure 1 and Figure 2 The driving structure of the pneumatic column of the utility model, including the fixed base plate 3 fixedly connected with the fixed cylinder 22, the first sliding rail 1 with the first sliding block 4 and the air cylinder 2 are installed on the fixed base plate 3, further including the first lifting plate 8 and the first lifting plate 8 is fixedly connected with the first sliding block 4, the piston rod end of the air cylinder 2 is fixedly connected with the side of the first lifting plate 8, the second sliding rail 11 with the second sliding block 14 and the electric drive lifting assembly are installed on the first lifting plate 8, further including the second lifting plate 15 and the second lifting plate 15 is fixedly connected with the second sliding block 14, the side of the second lifting plate 15 is connected with the electric drive lifting assembly, and the second lifting plate 15 is fixedly connected with the lifting cylinder 18.

[0022] The action mode is: by controlling the piston rod of the cylinder 2 to make extension and retraction action, the first lifting plate 8 and its attached components can be driven to make lifting movement, the first sliding rail 1 and its first sliding block 4 can improve the reliability of the aforementioned lifting action; by controlling the electric drive lifting assembly, the second lifting plate 15 can be controlled to make lifting movement, the second sliding rail 11 and its second sliding block 14 can improve the reliability of the aforementioned lifting action.

[0023] By controlling the action of the cylinder 2 and the action of the electric drive lifting assembly, the lifting cylinder 18 can be controlled to make lifting movement (the fixed cylinder 22 is located in the pit on the site and does not move), pneumatic drive and electric drive can be used as backup to improve the reliability of the operation of the ground column facility, and in actual application, pneumatic drive can be used as the main drive and electric drive can be used as the backup, for example, when the gas circuit fails (such as the compressed gas pipe is disconnected), the electric drive form can be used to ensure that the ground column facility can operate normally. On the other hand, when pneumatic drive and electric drive are used simultaneously, fast lifting and fast lowering control of the ground column facility can be achieved (that is, the lifting speed and the lowering speed of the lifting cylinder 18 are faster than those in the single drive mode).

[0024] In this embodiment, the electric drive lifting assembly includes a driving pulley 12 installed on the upper part of the first lifting plate 8 and a driven pulley 9 installed on the lower part of the first lifting plate 8, a transmission belt 10 is arranged between the driving pulley 12 and the driven pulley 9, the transmission belt 10 is fixedly connected to the side of the second lifting plate 15 through the clamping block 16, and a driving motor 17 for driving the driving pulley 12 is further arranged on the upper back of the first lifting plate 8. When the driving motor 17 drives the driving pulley 12 to rotate forward or reversely, the transmission belt 10 rotates forward or reversely, and correspondingly, the second lifting plate 15 moves upward or downward.

[0025] In this embodiment, a window is arranged on the upper side of the first lifting plate 8, an axle seat is arranged in the window, the axle of the driving pulley 12 is installed in the axle seat, and the driving motor 17 is installed on the back of the axle seat; a plurality of adjusting holes are arranged on both sides of the window in the vertical direction, and the axle seat is fixedly installed in one of the adjusting holes through screws on the side. The function of this structure is that the axle seat can move in the longitudinal direction, so that the transmission belt 10 can be set in the appropriate tension state at the beginning, and as the use time is prolonged, the transmission belt 10 may be loose, at which time the axle seat can be appropriately moved upward by a certain height in the window, so that the transmission belt 10 is in the tension state again.

[0026] In this embodiment, a fixing seat 5 is arranged on the side of the fixed base plate 3, the cylinder body of the cylinder 2 is fixedly connected with the fixing seat 5, and a support 13 is installed on the upper side of the first lifting plate 8, and the upper end of the piston rod of the cylinder 2 is fixedly connected with the support 13. As shown in the figure, the support 13 is made of a metal plate which is bent, and is fixedly installed on the upper side of the first lifting plate 8 through screws.

[0027] In this embodiment, a lower connecting block 23 is installed on the inner wall of the fixed cylinder 22, and a mounting hole 6 is arranged on the fixed base plate 3, and the fixed base plate 3 is fixedly connected with the lower connecting block 23 by means of a countersunk screw; an upper connecting block 19 is installed on the inner wall of the lifting cylinder 18, and a connecting hole 7 is arranged on the secondary lifting plate 15, and the secondary lifting plate 15 is fixedly connected with the upper connecting block 19 by means of a countersunk screw.

[0028] In this embodiment, a gas connection 24 and an electrical terminal 25 are installed on the bottom of the sidewall of the fixed cylinder 22, the gas cylinder 2 is connected with the gas connection 24 through an internal gas pipe, and the driving motor 17 is connected with the electrical terminal 25 through an internal cable. The gas connection 24 and the electrical terminal 25 are arranged to make the driving structure easy to be connected with a ground column control system (including a pneumatic control part and an electric control part).

[0029] Application mode:

[0030] As shown in FIG. Figure 3 The fixed cylinder 22 of the ground column is located in a pit on site, the bottom of the lifting cylinder 18 is inserted into the top of the fixed cylinder 22, a sealing ring 21 with a sealing groove is installed on the outside of the bottom edge of the lifting cylinder 18, and a sealing washer is installed in the sealing groove, so that the combination position between the lifting cylinder 18 and the fixed cylinder 22 has good sealing performance, which can prevent rainwater, dust and the like from entering the inside; a gland 20 is also installed on the top of the fixed cylinder 22, the gland 20 is composed of a sleeve and an annular wing plate at the top, the sleeve is located between the inner wall of the fixed cylinder 22 and the outer wall of the lifting cylinder 18, and the annular wing plate is fixedly connected with the annular wing plate arranged at the top of the fixed cylinder 22 by means of a screw;

[0031] The fixed base plate 3 of the driving structure is fixedly connected with the lower connecting block 23 in the fixed cylinder 22, and the secondary lifting plate 15 is fixedly connected with the upper connecting block 19 in the lifting cylinder 18; there are three modes when lifting control is performed: the first mode is a pneumatic driving mode, at this time, the piston rod of the gas cylinder 2 is controlled to stretch upwards, the primary lifting plate 8 and the secondary lifting plate 15 are simultaneously lifted (there is no relative movement between the two lifting plates), and the lifting cylinder 18 is correspondingly lifted; the second mode is an electric driving mode, at this time, the electric driving lifting assembly is controlled to act, the primary lifting plate 8 is stationary, the secondary lifting plate 15 is lifted, and the lifting cylinder 18 is correspondingly lifted; the third mode is a combined driving mode, at this time, the piston rod of the gas cylinder 2 is controlled to stretch upwards, the electric driving lifting assembly is simultaneously controlled to act, the primary lifting plate 8 and the secondary lifting plate 15 are simultaneously lifted, the secondary lifting plate 15 has a lifting action relative to the primary lifting plate 8, and the lifting cylinder 18 is correspondingly lifted; when the third driving mode is used, the lifting speed of the lifting cylinder 18 is faster than that of the first mode and the second mode.

Claims

1. A driving structure for a pneumatic ground column, characterized in that: The utility model provides a kind of electric lifting device, including the fixed base plate (3) fixedly connected with fixed cylinder body (22), with primary slide rail (1) with primary slider (4) and air cylinder (2) are installed on fixed base plate (3), further include primary lifting plate (8) and primary lifting plate (8) is fixedly connected with primary slider (4), the side of the piston rod end of air cylinder (2) is fixedly connected with primary lifting plate (8), with secondary slide rail (11) with secondary slider (14) and electric drive lifting assembly are installed on primary lifting plate (8), further include secondary lifting plate (15) and secondary lifting plate (15) is fixedly connected with secondary slider (14), the side of secondary lifting plate (15) is connected with electric drive lifting assembly, and secondary lifting plate (15) is fixedly connected with lifting cylinder body (18).

2. The drive structure of a pneumatic ground column according to claim 1, characterized in that: Electric drive lifting assembly includes driving pulley (12) installed on the upper portion of primary lifting plate (8) and driven pulley (9) installed on the lower portion of primary lifting plate (8), transmission belt (10) is provided between driving pulley (12) and driven pulley (9), and transmission belt (10) is fixedly connected with the side of secondary lifting plate (15) by clamping block (16), and driving motor (17) for driving driving pulley (12) is further provided on the upper back of primary lifting plate (8).

3. The drive structure of a pneumatic ground column according to claim 2, wherein the drive structure is provided with a The upper side of primary lifting plate (8) is provided with a window, and an axle seat is provided in the window, the axle of driving pulley (12) is installed in the axle seat, and driving motor (17) is installed on the back of the axle seat; a plurality of adjusting holes are provided on both sides of the window in the vertical direction, and the axle seat is fixedly installed in one of the adjusting holes by screws on the side.

4. The drive structure of a pneumatic ground pillar according to claim 3, wherein: A fixing seat (5) is provided on the side of fixed base plate (3), the cylinder body of air cylinder (2) is fixedly connected with fixing seat (5), and a support (13) is installed on the upper side of primary lifting plate (8), and the upper end of the piston rod of air cylinder (2) is fixedly connected with support (13).

5. The drive structure of a pneumatic ground pillar according to claim 4, characterized in that: A lower connecting block (23) is installed on the inner wall of fixed cylinder body (22), and a mounting hole (6) is provided on fixed base plate (3), and fixed base plate (3) is fixedly connected with lower connecting block (23) by countersunk head screws; an upper connecting block (19) is installed on the inner wall of lifting cylinder body (18), and a connecting hole (7) is provided on secondary lifting plate (15), and secondary lifting plate (15) is fixedly connected with upper connecting block (19) by countersunk head screws.

6. The drive structure of a pneumatic ground pillar according to claim 5, wherein: Airway connector (24) and power terminal (25) are installed on the side wall bottom of fixed cylinder body (22), air cylinder (2) is connected with airway connector (24) through internal air pipe, and driving motor (17) is connected with power terminal (25) through internal cable.

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