Low-noise lifting column

Abstract

The low-noise lifting column particularly relates to the technical field of lifting columns and comprises a shell, a movable column is slidably connected to the inner surface of the shell, a plurality of warning lamps are fixedly installed on the upper portion of the outer surface of the movable column in an annular distribution mode, and electric telescopic rods are fixedly connected to the front portion of the inner surface of the shell in a front-back symmetry mode. The upper ends of the two electric telescopic rods are fixedly connected with the lower end of the moving column, a lubricating assembly is arranged on the lower portion of the outer surface of the shell, and an oil brushing assembly is arranged at the upper end of the shell. According to the low-noise lifting column, due to the arrangement of the lubricating assembly and the oil brushing assembly, when the movable column ascends in the shell, lubricating oil can be squeezed into the movable column through the lubricating assembly, noise caused by rusting can be further avoided, meanwhile, the lubricating oil can be brushed on the movable column through the oil brushing assembly, and the noise is reduced. Friction between the movable column and the shell is reduced, and the movable column is prevented from being damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting columns, in particular to a low-noise lifting column. Background Art

[0002] Lifting bollards, also known as lifting ground bollards, lifting road bollards, anti-collision road bollards, hydraulic lifting bollards, isolation piles, etc., are called Bollard in English. It was originally used to describe a short vertical column, which was often used when large ships were moored in ports. Now, lifting bollards have been widely used in many occasions such as urban transportation, pedestrian streets, highway toll stations, airports, schools, banks, large clubs, parking lots, etc. By restricting passing vehicles, lifting bollards effectively ensure the safety of traffic order and major facilities and places.

[0003] Chinese patent document CN213709289U discloses a lifting column, including a fixed barrel, a hydraulic lifting device and a column body, wherein the lifting column is in the first state: the hydraulic lifting device drives upward, and the column body extends out of the fixed barrel; the lifting column is in the second state: the hydraulic lifting device drives downward, and the column body shrinks in the fixed barrel; the hydraulic lifting device includes a lifting rod and a hydraulic movement, and the hydraulic lifting device is installed in the fixed barrel; the column body also includes a top and a connecting end, and the connecting end of the column body is connected to the lifting rod; the utility model provides a lifting column, which has strong anti-collision performance, improves the weakness of poor waterproof performance, and has a low temperature protection function, and can be used normally in severe low temperature weather; however, the above patent document still has the following defects during implementation:

[0004] Although the waterproof performance can be enhanced in the above literature during actual use, the interior of the lifting column is still prone to rust due to water vapor after long-term use, which in turn causes friction during the lifting process, resulting in noise and easily causing damage to the lifting column. Utility Model Content

[0005] The main purpose of the utility model is to provide a low-noise lifting column, which can effectively solve the problem of noise generated due to excessive friction between the moving column and the shell.

[0006] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a low-noise lifting column, including a shell, a moving column is slidably connected to the inner surface of the shell, a plurality of warning lights are fixedly installed in a ring-shaped distribution on the upper part of the outer surface of the moving column, an electric telescopic rod is fixedly connected to the front and rear symmetrical front and rear part of the front inner surface of the shell, the upper ends of the two electric telescopic rods are fixedly connected to the lower end of the moving column, a lubrication assembly is arranged at the lower part of the outer surface of the shell, and an oil brush assembly is arranged at the upper end of the shell.

[0007] Preferably, the lubrication assembly includes a hollow cylinder fixedly connected to the middle side of the lower part of the inner surface of the shell, the inner surface of the hollow cylinder is provided with an annular groove, the inner surface of the annular groove is slidably connected with a piston, the middle part of the upper end of the piston is fixedly connected with a round rod fixedly connected to the middle part of the lower end of the moving column, the lower right side of the inner surface of the shell is provided with a placement groove that penetrates the upper part of the inner surface of the shell, the inner surface of the placement groove is fixedly connected with a connecting pipe, and the outer surface of the connecting pipe is fixedly connected with a plurality of nozzles that are connected to the inner surface of the connecting pipe.

[0008] Preferably, a one-way valve 1 connected to the inner surface of the hollow cylinder is fixedly connected to the right side of the lower portion of the outer surface of the hollow cylinder, the right end of the one-way valve 1 is fixedly connected to one end of a connecting pipe, and the inner surface of the one-way valve 1 is connected to the inner surface of the connecting pipe.

[0009] Preferably, a storage box is fixedly connected to the lower portion of the outer surface of the shell, and a second one-way valve is fixedly connected to the right portion of the inner surface of the storage box that penetrates through to the left portion of the inner surface of the hollow cylinder.

[0010] Preferably, a placement opening communicating with the inner surface of the placement box is fixedly connected to the left upper end of the placement box, and a bottle cap is threadedly connected to the outer surface of the placement opening.

[0011] Preferably, the oil brushing assembly includes a sponge block, a circular groove is provided at the upper end of the outer shell, a circular ring block is fixedly connected to the inner surface of the circular groove, the inner surface of the circular ring block is fixedly connected to the outer surface of the sponge block, the inner surface of the sponge block is tightly attached to the outer surface of the movable column, and a locking groove is provided on the left and right parts of the upper end of the outer shell, a locking block is movably installed on the inner surface of the locking groove, and the sides of the locking blocks close to each other are fixedly connected to the outer surface of the circular ring block.

[0012] Preferably, a threaded hole that penetrates the lower end of the blocking block is opened in the middle of the upper end of the two blocking blocks, the inner surfaces of the two threaded holes are threadedly connected with bolts, and the lower part of the inner surface of the two blocking grooves is opened with a threaded groove of the same size as the inner surface of the threaded hole.

[0013] Preferably, a plurality of anti-sliding blocks are fixedly connected to the outer surfaces of the two bolts, and the anti-sliding blocks are linearly and equidistantly distributed.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. The utility model provides a lubricating assembly and an oil brushing assembly, so that when the moving column is raised in the shell, the lubricating assembly can squeeze the lubricating oil into the moving column, thereby avoiding noise caused by rust. At the same time, the oil brushing assembly can brush the lubricating oil on the moving column, thereby reducing the friction between the moving column and the shell, and avoiding damage to the moving column.

[0016] 2. The utility model provides a piston and an annular groove, so that the movable column can drive the piston to move up and down during the self-lifting process, thereby driving the piston to squeeze the inner surface of the annular groove, and under the action of the one-way valve and the one-way valve, the use of lubricating oil is controlled, thereby avoiding friction between the movable column and the outer shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the overall cross-sectional structure of the utility model;

[0019] Figure 3 It is a schematic diagram of the cross-sectional structure of the placement groove and the circular groove of the utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the lubrication component of the utility model;

[0021] Figure 5 This is a schematic diagram of the cross-sectional structure of the lubrication component of the utility model;

[0022] Figure 6 It is a schematic diagram of the explosion effect of the oil brushing component of the utility model.

[0023] In the figure: 1. shell; 2. moving column; 3. warning light; 4. electric telescopic rod; 5. lubrication assembly; 51. hollow cylinder; 52. circular ring groove; 53. piston; 54. round rod; 55. one-way valve 1; 56. connecting pipe; 57. placement groove; 58. nozzle; 59. placement box; 510. one-way valve 2; 511. placement port; 512. bottle cap; 6. oil brush assembly; 61. circular groove; 62. circular ring block; 63. sponge block; 64. positioning groove; 65. positioning block; 66. threaded hole; 67. bolt; 68. anti-sliding block. DETAILED DESCRIPTION

[0024] like Figure 1 and Figure 2 As shown, a low-noise lifting column comprises a shell 1, a moving column 2 is slidably connected to the inner surface of the shell 1, a plurality of warning lights 3 are fixedly installed in a ring-shaped distribution on the upper part of the outer surface of the moving column 2, an electric telescopic rod 4 is fixedly connected to the front and rear symmetrically of the front part of the inner surface of the shell 1, the upper ends of the two electric telescopic rods 4 are fixedly connected to the lower end of the moving column 2, a lubrication component 5 is arranged at the lower part of the outer surface of the shell 1, and an oil brush component 6 is arranged at the upper end of the shell 1.

[0025] During the implementation of this embodiment, the outer shell 1 and the movable column 2 are buried in the soil, and the movable column 2 is driven to rise and fall by the movement of the electric telescopic rod 4. At the same time, the lifting and lowering of the movable column 2 drives the lubrication component 5 to spray lubricating oil on the outer surface of the movable column 2, and the lubricating oil is brushed on the movable column 2 by the oil brushing component 6.

[0026] Specifically, in order to reduce the sliding friction between the moving column 1 and the housing 2, refer to Figure 2 and Figure 3 In this embodiment, a placement opening 511 communicating with the inner surface of the placement box 59 is fixedly connected to the left upper end of the placement box 59 , and a bottle cap 512 is threadedly connected to the outer surface of the placement opening 511 .

[0027] For further information, see Figure 3 , Figure 4 and Figure 5 In this embodiment, a storage box 59 is fixedly connected to the lower portion of the outer surface of the shell 1, and a one-way valve 510 is fixedly connected to the right portion of the inner surface of the storage box 59 through the left portion of the inner surface of the hollow cylinder 51.

[0028] During the implementation process, the bottle cap 512 is rotated so that the bottle cap 512 can be away from the placement port 511 under the action of the threaded connection. After the lubricating oil required for lubrication is placed into the placement box 59 through the placement port 511, the bottle cap 512 is rotated in the opposite direction to seal the placement box 59.

[0029] The one-way valve 1 55 and the one-way valve 2 510 mentioned above are both mature technical means in the prior art. In this solution, they are used to allow the fluid to flow in only one specific direction and prevent it from flowing in the opposite direction.

[0030] For further information, see Figure 3 , Figure 4 and Figure 5 In this embodiment, the lubrication assembly 5 includes a hollow cylinder 51 fixedly connected to the middle side of the lower part of the inner surface of the shell 1, and a circular groove 52 is provided on the inner surface of the hollow cylinder 51. A piston 53 is slidably connected to the inner surface of the circular groove 52. A round rod 54 fixedly connected to the middle part of the lower end of the moving column 2 is fixedly connected to the middle part of the upper end of the piston 53. A placement groove 57 that is connected to the upper part of the inner surface of the shell 1 is provided on the lower right side of the inner surface of the shell 1. A connecting pipe 56 is fixedly connected to the inner surface of the placing groove 57, and a plurality of nozzles 58 that are connected to the inner surface of the connecting pipe 56 are fixedly connected to the outer surface of the connecting pipe 56.

[0031] For further information, see Figure 3 , Figure 4 and Figure 5In this embodiment, a one-way valve 55 connected to the inner surface of the hollow cylinder 51 is fixedly connected to the right side of the lower portion of the outer surface of the hollow cylinder 51. The right end of the one-way valve 55 is fixedly connected to one end of a connecting pipe 56, and the inner surface of the one-way valve 55 is connected to the inner surface of the connecting pipe 56.

[0032] During the implementation process, when the moving column 2 descends, the moving column 2 drives the round rod 54 to move downward, so that the round rod 54 drives the piston 53 to slide on the inner surface of the annular groove 52, so that the piston 53 squeezes the lubricating oil inside the hollow cylinder 51. Since the inside of the hollow cylinder 51 is under high pressure at this time, the one-way valve 55 is opened, and the lubricating oil enters the one-way valve 55, and is sprayed onto the upper outer surface of the moving column 2 through the nozzle 58 on the connecting pipe 56.

[0033] Secondly, when the movable column 2 moves upward, the piston 53 is driven to move upward, the interior of the hollow cylinder 51 is in negative pressure, and the lubricating oil in the placement box 59 is drawn into the interior of the hollow cylinder 51 through the second one-way valve 510.

[0034] Embodiment 2

[0035] This embodiment adds an oil brushing component 6 for brushing the lubricating oil on the basis of the first embodiment, so as to achieve the purpose of brushing the lubricating oil sprayed by the lubricating component 5 .

[0036] Specifically, in order to brush the lubricating oil sprayed from the lubricating assembly 5, refer to Figure 3 and Figure 6 In this embodiment, the oil brushing assembly 6 includes a sponge block 63, a circular groove 61 is provided at the upper end of the outer shell 1, a circular ring block 62 is fixedly connected to the inner surface of the circular groove 61, the inner surface of the circular ring block 62 is fixedly connected to the outer surface of the sponge block 63, the inner surface of the sponge block 63 is tightly attached to the outer surface of the movable column 2, and a locking groove 64 is provided on the left and right parts of the upper end of the outer shell 1, a locking block 65 is movably installed on the inner surface of the locking groove 64, and the side of the locking block 65 close to each other is fixedly connected to the outer surface of the circular ring block 62.

[0037] For further information, see Figure 3 and Figure 6 In this embodiment, a threaded hole 66 which is connected to the lower end of the blocking block 65 is formed in the middle of the upper end of the two blocking blocks 65, and bolts 67 are threadedly connected to the inner surfaces of the two threaded holes 66, and a threaded groove of the same size as the inner surface of the threaded hole 66 is formed in the lower part of the inner surface of the two blocking grooves 64.

[0038] For further information, see Figure 3 and Figure 6In this embodiment, a plurality of anti-sliding blocks 68 are fixedly connected to the outer surfaces of the two bolts 67, and the anti-sliding blocks 68 are linearly and equidistantly distributed.

[0039] During the implementation process, the annular block 62 is placed into the circular groove 61, and the locking block 65 is placed into the locking groove 64. At this time, the inner surface of the sponge block 63 is in close contact with the outer surface of the moving column 2. At this time, by rotating the bolt 67 into the threaded hole 66 and the threaded groove, the annular block 62 is fixed to the inner surface of the circular groove 61 under the action of the threaded connection. The sponge block 63 can apply lubricating oil to the surface of the lifting moving column 2, so that the outer surface of the moving column 2 can be coated with lubricating oil, thereby avoiding friction between the moving column 2 and the outer shell 1.

[0040] Working process: When in use, the up and down movement of the moving column 2 will drive the piston 53 to move on the inner surface of the annular groove 52. Under the cooperation of the one-way valve 1 55 and the one-way valve 2 510, the lubricating oil in the placement box 59 can enter the interior of the hollow cylinder 51 and be sprayed on the outer surface of the moving column 2 through the nozzle 58 on the connecting pipe 56. At the same time, the sponge block 63 is fixed by the bolt 67, and the lubricating oil is applied to the surface of the lifting and lowering moving column 2.

[0041] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A low-noise lifting column, comprising a housing (1), characterized in that: The inner surface of the housing (1) is slidably connected to a moving column (2), a plurality of warning lights (3) are fixedly mounted in an annular distribution on the upper portion of the outer surface of the moving column (2), an electric telescopic rod (4) is fixedly connected to the front portion of the inner surface of the housing (1) in a front-to-back symmetrical manner, the upper ends of the two electric telescopic rods (4) are fixedly connected to the lower end of the moving column (2), a lubrication component (5) is arranged at the lower portion of the outer surface of the housing (1), and an oil brush component (6) is arranged at the upper end of the housing (1).

2. A low noise lifting column according to claim 1, characterized in that: The lubrication assembly (5) comprises a hollow cylinder (51) fixedly connected to the middle side of the lower part of the inner surface of the housing (1); a circular groove (52) is provided on the inner surface of the hollow cylinder (51); a piston (53) is slidably connected to the inner surface of the circular groove (52); a round rod (54) fixedly connected to the middle part of the lower end of the moving column (2) is fixedly connected to the middle part of the upper end of the piston (53); a placement groove (57) is provided on the lower right side of the inner surface of the housing (1) and is communicated with the upper part of the inner surface of the housing (1); a connecting pipe (56) is fixedly connected to the inner surface of the placing groove (57); and a plurality of nozzles (58) connected to the inner surface of the connecting pipe (56) are fixedly connected to the outer surface of the connecting pipe (56).

3. A low noise lifting column according to claim 2, characterized in that: A one-way valve (55) connected to the inner surface of the hollow cylinder (51) is fixedly connected to the right side of the lower portion of the outer surface of the hollow cylinder (51); the right end of the one-way valve (55) is fixedly connected to one end of a connecting pipe (56); and the inner surface of the one-way valve (55) is connected to the inner surface of the connecting pipe (56).

4. A low noise lifting column according to claim 3, characterized in that: A storage box (59) is fixedly connected to the lower portion of the outer surface of the housing (1), and a second one-way valve (510) is fixedly connected to the right portion of the inner surface of the storage box (59) which penetrates through to the left portion of the inner surface of the hollow cylinder (51).

5. A low noise lifting column according to claim 4, characterized in that: A placement opening (511) communicating with the inner surface of the placement box (59) is fixedly connected to the left upper end of the placement box (59), and a bottle cap (512) is threadedly connected to the outer surface of the placement opening (511).

6. A low noise lifting column according to claim 1, characterized in that: The oil brushing assembly (6) comprises a sponge block (63). A circular groove (61) is formed at the upper end of the housing (1). A circular ring block (62) is fixedly connected to the inner surface of the circular groove (61). The inner surface of the circular ring block (62) is fixedly connected to the outer surface of the sponge block (63). The inner surface of the sponge block (63) is in close contact with the outer surface of the movable column (2). A locking groove (64) is formed at the left and right parts of the upper end of the housing (1). A locking block (65) is movably mounted on the inner surface of the locking groove (64). The sides of the locking blocks (65) that are close to each other are fixedly connected to the outer surface of the circular ring block (62).

7. A low noise lifting column according to claim 6, characterized in that: A threaded hole (66) which is in communication with the lower end of the locking block (65) is formed in the middle of the upper end of the two locking blocks (65); bolts (67) are threadedly connected to the inner surfaces of the two threaded holes (66); and a threaded groove of the same size as the inner surface of the threaded hole (66) is formed in the lower part of the inner surface of the two locking grooves (64).

8. A low noise lifting column according to claim 7, characterized in that: A plurality of anti-sliding blocks (68) are fixedly connected to the outer surfaces of the two bolts (67), and the anti-sliding blocks (68) are linearly and equidistantly distributed.

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