Ball spline structure for lifting of stand column

Abstract

The utility model relates to the technical field of lifting columns, in particular to a ball spline structure for lifting of a stand column, which comprises the stand column and a lower flange component, the lower flange component is mounted at the bottom of the stand column, a spline sleeve is fixedly mounted at the top of the stand column, and a spline shaft is slidably mounted on the spline sleeve along a key groove. A through hole is formed in the spline shaft in the axial direction, an air spring is fixedly installed in the through hole of the spline shaft, a decorative pipe is installed outside the stand column, an upper flange assembly is installed at the top of the decorative pipe, and an upper flange is arranged at the bottom of the upper flange assembly. The through hole is formed in the spline shaft, the inner space of the hole is large, the middle hollow part can contain and install the gas spring and is used for driving and locking the stand column, the gas spring can drive the spline shaft to move directionally along the key groove, the lifting stand column is locked by installing the gas spring, the assembly requirement is not high, and the assembly efficiency is high. And the phenomenon of jamming caused by overlarge unbalanced load bearing is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting columns, in particular to a ball spline structure used for lifting columns. Background Art

[0002] Lifting bollards are widely used in many occasions such as urban transportation, military and national important agency gates and surrounding areas, pedestrian streets, highway toll stations, airports, schools, banks, large clubs, parking lots, etc. The actuator inside the column drives the column to rise and fall under the control of the control command. The control system can choose relay logic circuit system or PLC control. In addition to conventional operation control devices such as button boxes and remote controls, it can also be linked with other entrance and exit management equipment and central management platform control equipment.

[0003] The prior art also has the following defects during use:

[0004] Most of the lifting column structures in the prior art are ball friction plates, which have high assembly requirements. Using an eccentric load will cause jamming. The spline shaft of the ball spline assembly is solid, and a gas spring cannot be installed to lock the lifting column.

[0005] In view of this, we propose a ball spline structure for column lifting to solve the existing problem. Utility Model Content

[0006] The utility model aims to provide a ball spline structure for column lifting to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a ball spline structure for lifting and lowering a column, comprising a column and a lower flange assembly, the bottom of the column is installed with a lower flange assembly, the top of the column is fixedly installed with a spline sleeve, the spline sleeve is slidably installed with a spline shaft along the key groove, the interior of the spline shaft is provided with a through hole along the axial direction, a gas spring is fixedly installed inside the through hole of the spline shaft, a decorative tube is installed outside the column, an upper flange assembly is installed on the top of the decorative tube, the bottom of the upper flange assembly includes an upper flange, a release switch is installed inside the top groove body of the upper flange, a positioning pin is installed inside the release switch, a lower pressure block is installed on the top of the release switch, and the bottom of the release switch is connected to one end of the piston rod of the gas spring.

[0008] Preferably, a lower flange is provided at the bottom of the lower flange assembly.

[0009] Preferably, a lower flange joint is installed on the top of the lower flange.

[0010] Preferably, a joint locating pin is installed inside the lower flange joint.

[0011] Preferably, spline flanges are fixedly mounted on both ends of the spline shaft.

[0012] Preferably, the spline sleeve, the spline shaft and the spline flange together constitute a ball spline assembly.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model has a through hole opened inside the spline shaft, the internal space of the hole is large, and the middle hollow part can accommodate the installation of a gas spring for driving and locking the column. The gas spring can move along the keyway with the spline shaft. The lifting column can be locked by installing the gas spring. The assembly requirements are not high, and the phenomenon of jamming caused by excessive eccentric load can be avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional general assembly drawing of the utility model;

[0016] Figure 2 It is a three-dimensional exploded view of the utility model;

[0017] Figure 3 This is a diagram of the lower flange assembly of the utility model;

[0018] Figure 4 This is a diagram of a ball spline assembly of the utility model;

[0019] Figure 5 This is a diagram of the upper flange assembly of the utility model;

[0020] Figure 6 This is a cross-sectional view of the gas spring of the utility model placed in the spline shaft.

[0021] In the figure: 1. column; 2. lower flange assembly; 21. lower flange; 22. lower flange joint; 23. joint locating pin; 3. ball spline assembly; 31. spline flange; 32. spline shaft; 33. spline sleeve; 4. gas spring; 5. upper flange assembly; 51. upper flange; 52. release switch; 53. locating pin; 54. lower pressure block; 6. decorative tube. DETAILED DESCRIPTION

[0022] The technical solution of the utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0023] Embodiment 1

[0024] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, the utility model proposes a ball spline structure for column lifting, including a column 1 and a lower flange assembly 2. The bottom of the column 1 is installed with the lower flange assembly 2, and the lower flange assembly 2 is used to be fixed together with the bottom end of the column 1 to form a whole. The top of the column 1 is fixedly installed with a spline sleeve 33, so that the spline sleeve 33 can drive the column 1 to move. The spline sleeve 33 is slidably installed with a spline shaft 32 along the key groove. The spline shaft 32 can slide on the spline sleeve 33 driven by the gas spring 4. The inside of the spline shaft 32 is provided with a through hole along the axial direction, and the gas spring 4 can be fixedly installed in the through hole. The gas spring 4 is fixedly installed inside the through hole of the spline shaft 32. The gas spring 4 can rely on the internal compressed gas to make the gas spring 4 pop out without restraint. The outside of the column 1 is installed with a decorative tube 6, and the decorative tube 6 is used to An upper flange assembly 5 is fixedly installed on the top and a sliding installation is performed on the column 1 at the bottom. An upper flange assembly 5 is installed on the top of the decorative tube 6. The upper flange assembly 5 is used to be fixedly installed on the decorative tube 6 so as to install a release switch 52. The bottom of the upper flange assembly 5 includes an upper flange 51. The upper flange 51 is used to connect the decorative tube 6. A release switch 52 is installed inside the top groove of the upper flange 51. The release switch 52 is used to control the pop-up of the gas spring 4. A positioning pin 53 is installed inside the release switch 52. The positioning pin 53 is used to fix the release switch 52 in the groove of the upper flange 51. A lower pressing block 54 is installed on the top of the release switch 52. The lower pressing block 54 is used to fix the release switch 52. The bottom of the release switch 52 is connected to one end of the piston rod of the gas spring 4, thereby realizing the control of the pop-up of the gas spring 4.

[0025] Furthermore, a lower flange 21 is provided at the bottom of the lower flange assembly 2, and the lower flange 21 plays a connecting role.

[0026] Furthermore, a lower flange joint 22 is installed on the top of the lower flange 21, and the lower flange joint 22 is used for connection.

[0027] Furthermore, a joint positioning pin 23 is installed inside the lower flange joint 22 , and the joint positioning pin 23 is used to place more lower flange joints 22 on the lower flange 21 .

[0028] Furthermore, spline flanges 31 are fixedly mounted on both ends of the spline shaft 32 , and the spline flanges 31 are used to drive the spline sleeve 33 to move together during the movement of the spline shaft 32 .

[0029] Furthermore, the spline sleeve 33 , the spline shaft 32 and the spline flange 31 together constitute a ball spline assembly 3 .

[0030] The working principle of the ball spline structure for column lifting based on the first embodiment is: a ball spline structure for column lifting aligns the lower flange joint 22 with the mounting hole of the lower flange 21 and connects them through the joint positioning pin 23 to form a lower flange assembly 2; the column 1 is fixed to the lower flange assembly 2 with screws; the spline sleeve 33 is connected to the spline shaft 32 along the key groove, and the two spline flanges 31 are respectively installed at both ends of the spline shaft 32 to form a ball spline assembly 3; the spline sleeve 33 flange of the ball spline assembly 3 is fixed to the upper end of the column 1 with screws, and the gas spring 4 is passed through the hollow of the spline shaft 32 and fixed to the lower flange joint 22; the positioning pin 53 passes through the release switch 52 and is installed in the upper flange 51 and fixed to the upper flange assembly 5 with two lower pressing blocks 54; the upper flange assembly 5 is threadedly connected to the upper end of the spline shaft 32 and fixed with the spline flange 31; the piston rod end of the gas spring 4 is connected to the release switch 52; the decorative tube 6 is connected to the upper flange 51. When the release switch 52 is turned on to trigger the gas spring 4, the spline shaft 32 performs directional movement along the keyway direction under the driving force of the gas spring 4.

[0031] The above-mentioned specific embodiments are only several preferred embodiments of the present invention. Based on the technical solution of the present invention and the relevant inspiration of the above-mentioned embodiments, those skilled in the art can make various alternative improvements and combinations to the above-mentioned specific embodiments.

Claims

1. A ball spline structure for column lifting, comprising a column (1) and a lower flange assembly (2), characterized in that: A lower flange assembly (2) is installed at the bottom of the column (1), a spline sleeve (33) is fixedly installed at the top of the column (1), a spline shaft (32) is slidably installed on the spline sleeve (33) along the key groove, a through hole is opened in the interior of the spline shaft (32) along the axial direction, a gas spring (4) is fixedly installed in the through hole of the spline shaft (32), a decorative tube (6) is installed on the outside of the column (1), an upper flange assembly (5) is installed on the top of the decorative tube (6), the bottom of the upper flange assembly (5) includes an upper flange (51), a release switch (52) is installed in the top groove of the upper flange (51), a positioning pin (53) is installed in the interior of the release switch (52), a lower pressing block (54) is installed on the top of the release switch (52), and the bottom of the release switch (52) is connected to one end of the piston rod of the gas spring (4).

2. A ball spline structure for column lifting according to claim 1, characterized in that: A lower flange (21) is provided at the bottom of the lower flange assembly (2).

3. A ball spline structure for column lifting according to claim 2, characterized in that: A lower flange joint (22) is installed on the top of the lower flange (21).

4. A ball spline structure for column lifting according to claim 3, characterized in that: A joint positioning pin (23) is installed inside the lower flange joint (22).

5. A ball spline structure for column lifting according to claim 1, characterized in that: Spline flanges (31) are fixedly mounted on both ends of the spline shaft (32).

6. A ball spline structure for column lifting according to claim 1 or 5, characterized in that: The spline sleeve (33), the spline shaft (32) and the spline flange (31) together form a ball spline assembly (3).

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