Guardrail height adjusting device

Abstract

The utility model belongs to the technical field of road construction auxiliary equipment, and discloses a guardrail height adjusting device which comprises a bottom plate, and a positioning mechanism and a lifting mechanism are installed on the bottom plate. The positioning mechanism comprises a fork opening formed in the bottom plate and limiting boxes installed on the bottom plate, the number of the limiting boxes is two, sliding blocks are installed in the limiting boxes in a sliding mode, the sliding blocks are integrally connected with J-shaped positioning blocks, and the limiting boxes are in threaded connection with positioning screws; the lifting mechanism comprises a sliding column vertically installed on the bottom plate, the sliding column is sleeved with a sliding cylinder, the upper end of the sliding cylinder is connected with a supporting plate and an abutting plate, a steel rope is installed on the supporting plate in a hanging mode, the end of the steel rope is connected with a hook, the lower end of the sliding cylinder is connected with a top plate, and the top plate is connected with a lifting rod. A jack with the output end making contact with the top plate is installed on the bottom plate, a baffle is installed at the upper end of the sliding column, the baffle is in threaded connection with an abutting screw, and a graduated scale is perpendicularly installed on the baffle.

Description

Technical Field

[0001] The utility model belongs to the technical field of road construction auxiliary equipment, and in particular relates to a guardrail height adjustment device. Background Art

[0002] With the development of economy, the number of cars in my country has increased year by year, which has caused the corrugated beam guardrails installed on the road to be frequently hit by vehicles, resulting in deformation of the columns. Since the corrugated beam guardrail columns are driven deep, they are usually bent on the earth shoulder or the upper part of the concrete foundation. When dealing with this type of corrugated beam guardrail, the columns are often difficult to pull out. At the same time, with the vigorous promotion of preventive road maintenance, most road preventive maintenance adopts the method of overlaying, which leads to the increasing problem of insufficient guardrail height. In addition, some corrugated beam guardrail columns also have the problem of insufficient corrugated beam guardrail height due to roadbed settlement, and it is difficult to adjust the guardrail height after strengthening the roadbed.

[0003] At present, highway maintenance stations face the following problems in adjusting the height of guardrail posts:

[0004] 1. Pile drivers or hoist cranes are relatively large in size and easily affected by the terrain, making it difficult to operate;

[0005] 2. The purchase cost of pile driving and extraction equipment is high, and it requires regular maintenance, which is not economical. Utility Model Content

[0006] In view of the problems raised by the above background technology, the purpose of the utility model is to provide a guardrail height adjustment device.

[0007] In order to achieve the above technical purpose, the technical solution adopted by the utility model is as follows:

[0008] A guardrail height adjustment device comprises a bottom plate, wherein the bottom plate is provided with a positioning mechanism and a lifting mechanism;

[0009] The positioning mechanism comprises a fork disposed on the bottom plate and a limit box installed on the bottom plate, the limit boxes are two, and the two limit boxes are symmetrically disposed on both sides of the fork, a slider is slidably installed in the limit box, the slider is integrally connected with a J-shaped positioning block, and the limit box is threadedly connected with a positioning screw;

[0010] The lifting mechanism includes a sliding column vertically installed on the base plate, a sliding cylinder is arranged outside the sliding column, a support plate and a stop plate are connected to the upper end of the sliding cylinder, the support plate and the stop plate are horizontally and symmetrically installed on both sides of the sliding cylinder, a steel rope is suspended and installed on the support plate, a hook is connected to the end of the steel rope, the lower end of the sliding cylinder is connected to the top plate, a jack is installed on the base plate, the output end of which contacts the top plate, a baffle is installed on the upper end of the sliding column, a resistance screw is threadedly connected to the baffle, and a scale is vertically installed on the baffle.

[0011] It is further defined that support feet are installed at the four corners of the bottom of the base plate. This design prevents the bottom surface of the base plate from being easily contacted with sludge, thereby keeping it clean and beautiful. Furthermore, in situations where the placement surface is uneven, it is easier to achieve leveling by using padding.

[0012] It is further defined that the base plate is installed with a moving mechanism, and the moving mechanism includes a column barrel arranged at the four corners of the base plate, the column barrel is slidably installed with a cylinder, a spring is connected between the cylinder and the column barrel, the elastic force of the spring is greater than the total weight of the base plate and all the mounting parts on the base plate, and a moving wheel is connected to the bottom of the column barrel, and the specification size of the moving wheel is smaller than the inner diameter size of the column barrel. Such a design can lift the base plate under the effect of the spring when no pile pulling operation is performed, so that the base plate does not contact the moving surface, and the moving wheel will contact the moving surface to achieve convenient movement, and when the pile pulling operation is performed, under the reaction force, the moving wheel will retract into the column barrel, so that the base plate contacts the moving surface, thereby ensuring the load-bearing effect.

[0013] It is further defined that there are two sliding columns, and the support plate and the top plate are located between the two sliding columns. This design makes the overall vertical lifting effect better and is less likely to cause deviation problems when driving the support plate to be lifted.

[0014] It is further defined that a reinforcing rib plate is connected between the support plate and the slide cylinder, and such a design ensures the strength of the support plate.

[0015] The beneficial effects of adopting the utility model are:

[0016] With the structural design of the utility model, the hook is hung on the screw installed in the column, and then the jack is started to lift the column. Under the effect of the scale and the limit of the screw, the lifting distance each time can be guaranteed to be the same, which is conducive to improving the efficiency of pulling out the columns in batches.

[0017] The structural design of the utility model can be adapted to the lifting of columns of various specifications and sizes under the effect of the positioning mechanism, and has strong adaptability in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention can be further described by the non-limiting embodiments given in the accompanying drawings;

[0019] Figure 1 It is a structural schematic diagram of an embodiment of a guardrail height adjustment device of the utility model;

[0020] Figure 2 It is a schematic cross-sectional structure diagram of the center position of the fork of an embodiment of a guardrail height adjustment device of the utility model;

[0021] Figure 3 It is a cross-sectional structural diagram of the column position of an embodiment of a guardrail height adjustment device of the utility model;

[0022] Figure 4 It is a cross-sectional structural diagram of the position of the limit box of an embodiment of a guardrail height adjustment device of the utility model;

[0023] The main component symbols are described as follows:

[0024] Base plate 1; positioning mechanism 2; lifting mechanism 3; supporting foot 4; moving mechanism 5;

[0025] Fork 21; limit box 22; slider 23; J-shaped positioning block 24; positioning screw 25;

[0026] Sliding column 31; sliding cylinder 32; supporting plate 33; abutting plate 34; steel rope 35; hook 36; top plate 37; jack 38; baffle 39; abutting screw 310; scale 311; reinforcing rib plate 312;

[0027] Cylinder 51; Cylinder 52; Spring 53; Moving wheel 54. DETAILED DESCRIPTION

[0028] In order to enable those skilled in the art to better understand the present invention, the technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0029] like Figure 1 to Figure 4 As shown, a guardrail height adjustment device of the utility model comprises a base plate 1, and a positioning mechanism 2 and a lifting mechanism 3 are installed on the base plate 1;

[0030] The positioning mechanism 2 includes a fork 21 disposed on the bottom plate 1 and a limit box 22 installed on the bottom plate 1. There are two limit boxes 22, which are symmetrically disposed on both sides of the fork 21. A slider 23 is slidably installed in the limit box 22. The slider 23 is integrally connected with a J-shaped positioning block 24. The limit box 22 is threadedly connected with a positioning screw 25.

[0031] The lifting mechanism 3 includes a sliding column 31 vertically installed on the base plate 1, and a sliding cylinder 32 is provided on the outer shell of the sliding column 31. The upper end of the sliding cylinder 32 is connected with a support plate 33 and a stop plate 34, and the support plate 33 and the stop plate 34 are horizontally symmetrically installed on both sides of the sliding cylinder 32. The support plate 33 is suspended with a steel rope 35, and the end of the steel rope 35 is connected with a hook 36. The lower end of the sliding cylinder 32 is connected with a top plate 37, and the base plate 1 is installed with a jack 38 whose output end contacts the top plate 37. A baffle 39 is installed on the upper end of the sliding column 31, and a resistance screw 310 is threadedly connected to the baffle 39, and a scale 311 is vertically installed on the baffle 39.

[0032] In this implementation case, when a guardrail height adjustment device is used, the device is moved to the side of the column, the position of the device is determined by the positioning mechanism 2, and then the column is pulled up by the lifting mechanism 3;

[0033] The specific operation is as follows: rotate the positioning screw 25, push the J-shaped positioning block 24 to move in the limit box 22, and the movement of the J-shaped positioning blocks 24 on both sides of the column makes the J-shaped positioning blocks 24 contact the column. At this time, the distance between the two J-shaped positioning blocks 24 is the diameter of the column. Conversely, the position of the device is limited. Move the bottom plate 1, move the J-shaped positioning blocks 24 to both sides of the column, open the shielding cover on the column, and then hang the hook 36 on the rod of the screw in the column;

[0034] The jack 38 is started, and the output end of the jack 38 moves upward, the top plate 37 moves upward, and the slide cylinder 32 moves upward immediately under the limit of the slide column 31, and the support plate 33 and the stop plate 34 start to move synchronously. Under the pulling of the steel rope 35, the hook 36 is lifted, and then the column is lifted, so as to achieve the purpose of pulling the column, and then the height of the guardrail installed on the column is adjusted;

[0035] Furthermore, by rotating the interference screw 310 on the top baffle 39 and cooperating with the scale 311, the height position of the interference screw 310 can be accurately adjusted. When the interference plate 34 contacts the interference screw 310, the support plate 33 can no longer move, thereby limiting the height of the upward movement of the column, which is suitable for batches of the same height and ensures that the overall adjustment height of the guardrail is consistent.

[0036] Preferably, support feet 4 are installed at the four corners of the bottom of the base plate 1. This design prevents the bottom surface of the base plate 1 from being easily contacted with sludge, keeping it clean and beautiful. Furthermore, in situations where the placement surface is uneven, it is easier to achieve leveling by using padding. In fact, the height of the support feet 4 can also be considered according to specific circumstances.

[0037] Preferably, the base plate 1 is installed with a moving mechanism 5, and the moving mechanism 5 includes a cylinder 51 arranged at the four corners of the base plate 1, and a cylinder 52 is slidably installed on the cylinder 51, and a spring 53 is connected between the cylinder 52 and the cylinder 51, and the elastic force of the spring 53 is greater than the total weight of the base plate 1 and all the mounting parts on the base plate 1, and a moving wheel 54 is connected to the bottom of the cylinder 51, and the specification size of the moving wheel 54 is smaller than the inner diameter size of the cylinder 51. Such a design can lift the base plate 1 under the effect of the spring 53 when the pile pulling operation is not performed, so that the base plate 1 does not contact the moving surface, and the moving wheel 54 will contact the moving surface to achieve convenient movement, and when the pile pulling operation is performed, under the reaction force, the moving wheel 54 will retract into the cylinder 51, so that the base plate 1 contacts the moving surface, so as to ensure the load-bearing effect. In fact, the structure of the moving mechanism 5 can also be considered according to specific circumstances.

[0038] Preferably, there are two slide columns 31, and the support plate 34 and the top plate 37 are located between the two slide columns 31. This design makes the overall vertical lifting effect better and is less likely to cause deviation problems when driving the support plate 33 to be lifted. In fact, the number and position relationship of the slide columns 31 can also be considered according to specific circumstances.

[0039] Preferably, a reinforcing rib plate 312 is connected between the support plate 33 and the slide cylinder 32. Such a design ensures the strength of the support plate 33. In fact, the structure for ensuring the strength of the support plate 33 may also be considered according to specific circumstances.

[0040] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or change the above embodiments without violating the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the relevant technical field without departing from the spirit and technical ideas disclosed in the present invention shall still be covered by the claims of the present invention.

Claims

1. A guardrail height adjustment device, comprising a base plate (1), characterized in that: The base plate (1) is equipped with a positioning mechanism (2) and a lifting mechanism (3); The positioning mechanism (2) comprises a fork (21) arranged on the bottom plate (1) and a limit box (22) installed on the bottom plate (1), there are two limit boxes (22), the two limit boxes (22) are symmetrically arranged on both sides of the fork (21), a slider (23) is slidably installed in the limit box (22), the slider (23) is integrally connected with a J-shaped positioning block (24), and the limit box (22) is threadedly connected with a positioning screw (25); The lifting mechanism (3) comprises a sliding column (31) vertically mounted on the base plate (1), the sliding column (31) is provided with a sliding cylinder (32) on its outer shell, the upper end of the sliding cylinder (32) is connected with a support plate (33) and a stop plate (34), the support plate (33) and the stop plate (34) are horizontally symmetrically mounted on both sides of the sliding cylinder (32), the support plate (33) is suspended with a steel rope (35), the end of the steel rope (35) is connected with a hook (36), the lower end of the sliding cylinder (32) is connected with a top plate (37), the base plate (1) is mounted with a jack (38) whose output end contacts the top plate (37), the upper end of the sliding column (31) is mounted with a baffle (39), the baffle (39) is threadedly connected with a stop screw (310), and the baffle (39) is vertically mounted with a scale (311).

2. A guardrail height adjustment device according to claim 1, characterized in that: Support legs (4) are installed at the four corners of the bottom of the base plate (1).

3. A guardrail height adjustment device according to claim 2, characterized in that: The base plate (1) is installed with a moving mechanism (5), and the moving mechanism (5) includes a column (51) arranged at the four corners of the base plate (1), and the column (51) is slidably installed with a cylinder (52), and a spring (53) is connected between the cylinder (52) and the column (51), and the elastic force of the spring (53) is greater than the total weight of the base plate (1) and all the mounting parts on the base plate (1), and the bottom of the column (51) is connected with a moving wheel (54), and the specification size of the moving wheel (54) is smaller than the inner diameter size of the column (51).

4. A guardrail height adjustment device according to claim 3, characterized in that: There are two sliding columns (31), and the abutment plate (34) and the top plate (37) are located between the two sliding columns (31).

5. A guardrail height adjustment device according to claim 4, characterized in that: A reinforcing rib plate (312) is connected between the support plate (33) and the slide cylinder (32).

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