Lifting frame for highway construction

Abstract

The utility model relates to a lifting frame, belongs to the technical field of highway construction, and particularly relates to a lifting frame for highway construction, which comprises a fixed base, a bearing platform is arranged at the top of the fixed base, a lifting motor is fixedly mounted on the wall surface of the bottom in the fixed base, and a containing cylinder is arranged at the top of the lifting motor. A connecting rod is slidably mounted on the top wall face of the containing cylinder, a connecting plate is fixedly mounted on the bottom wall face of the connecting rod, an adjusting bolt is fixedly mounted on an output shaft of the lifting motor, a reinforcing rod is arranged at the bottom of the bearing platform, a reinforcing groove is formed in the top of the fixing base, and a positioning clamping block is fixedly mounted at the bottom in the reinforcing groove. The bottom end of the bearing platform is supported through the two reinforcing rods, the position of the bearing platform is reinforced, the position of the bearing platform is reinforced, the connecting plate is not prone to sliding through the adjusting bolts, and it is guaranteed that the position of the bearing platform is stable; the problem that the position of an existing bearing platform is unstable is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of highway construction, in particular to a lifting frame for highway construction. Background Art

[0002] Highway literally means a road for public transportation. Roads are engineering facilities for various vehicles (trackless) and pedestrians to pass through. According to their usage characteristics, they are divided into urban roads, highways, factory and mine roads, forest roads and rural roads. Lifting frames are needed in the process of highway construction. Traditional lifting frames have poor stability during use and are prone to shaking and tilting during the lifting process, which causes panic to personnel and increases the danger of construction personnel.

[0003] After searching, the Chinese patent with publication number CN214885339U discloses a lifting frame for highway construction, including a fixed box and a platform, the bottom of the fixed box is bolted with walking wheels, the bottom of the fixed box is pasted with reflective stickers, the top of the fixed box is bolted with fixed plates on both sides, the right side of the front of the fixed plate is bolted with a controller, the center of the top of the inner cavity of the fixed box is sequentially provided with limit slots from front to back, and the top of the platform is bolted with fences on all sides. The utility model improves the stability of the lifting frame and reduces the danger index of the lifting frame through the cooperation of the push rod cylinder, rack plate, gear, rotating shaft, limit plate, adjustment plate and movable frame, prevents the construction personnel from shaking when using the lifting frame to construct the highway, causing panic to the construction personnel, and the platform can be adjusted in angle through the cooperation of the first slider and the second slide slot to prevent the platform from accidentally breaking during the lifting process, causing harm to personnel.

[0004] In the above-mentioned prior art solution, the piston rod of the push rod cylinder drives the gear to move upward on the surface of the rack plate through the connecting frame, and the two limit plates move to the adjacent side to extend the movable frame, so that the platform moves upward. When the interior of the platform is put down due to heavy objects, a large vibration will be generated, and the bottom end of the movable frame at the bottom of the platform will have an expansion force. The two limit plates will move to the far side, causing the push rod cylinder to be subjected to a contraction force and unable to complete the position locking, so that the position of the platform will move downward, resulting in an unstable position of the platform. Utility Model Content

[0005] In order to solve the above technical problems, the utility model proposes a lifting frame for highway construction, which supports the bottom end of the supporting platform by two reinforcement rods, reinforces the position of the supporting platform, and adjusts the bolts to make the connecting plate less likely to slide, thereby ensuring the stability of the position of the supporting platform.

[0006] The technical solution to achieve the purpose of the utility model is: a lifting frame for highway construction, comprising a fixed base, a supporting platform is arranged on the top of the fixed base, a lifting motor is fixedly installed on the inner bottom wall of the fixed base, a accommodating cylinder is arranged on the top of the lifting motor, the accommodating cylinder is fixedly installed on the inner side wall of the fixed base, a plurality of connecting rods are slidably installed on the top wall of the accommodating cylinder, a connecting plate is fixedly installed on the bottom wall of the connecting rod, an adjusting bolt is fixedly installed on the output shaft of the lifting motor, the connecting plate is threadedly installed on the side wall of the adjusting bolt, two reinforcement rods are arranged on the bottom wall of the supporting platform, two reinforcement grooves are provided on the top wall of the fixed base, and a plurality of positioning blocks are fixedly installed at equal intervals on the inner bottom wall of the reinforcement groove.

[0007] In some embodiments, a retractable rope is fixedly mounted on the side wall of the reinforcement rod, and the top end of the retractable rope passes through the side wall of the supporting platform and extends to the interior of the supporting platform.

[0008] In some embodiments, a receiving groove is formed on the bottom wall of the reinforcement rod, an extension block is slidably installed inside the receiving groove, and an extension spring is fixedly connected inside the receiving groove.

[0009] In some embodiments, a plurality of the connecting rods are circumferentially and equidistantly distributed inside the accommodating tube, and the top end of the adjusting bolt is rotatably mounted on the inner top wall surface of the accommodating tube via a bearing.

[0010] In some embodiments, the two reinforcement rods are rotatably mounted at diagonal positions on the bottom wall of the supporting platform, the two reinforcement grooves are aligned with the two reinforcement rods, and the positioning block is triangular in shape.

[0011] In some embodiments, a plurality of universal wheels are fixedly mounted on the bottom wall of the fixed base, two limit plates are fixedly mounted on the top wall of the fixed base, and the supporting platform is slidably mounted between the two limit plates.

[0012] Compared with the prior art, the utility model has the following significant advantages:

[0013] First, in the utility model, a worker stands inside the supporting platform and then controls the rotation of the output end of the lifting motor to make the connecting plate threadedly installed on the side wall of the adjusting bolt move up and down, and the connecting rod fixedly installed on the top wall of the connecting plate moves with the movement of the connecting plate, and multiple connecting rods limit the position of the connecting plate so that the connecting plate will not rotate with the rotation of the adjusting bolt. Since the reinforcement rod is rotatably installed on the bottom wall of the supporting platform, when the supporting platform moves upward, the reinforcement rod will rotate downward due to the influence of gravity, and the bottom end of the reinforcement rod will be stuck on the side wall of the positioning block. The bottom end of the supporting platform is supported by two reinforcement rods, and the position of the supporting platform is reinforced. The position of the supporting platform is reinforced to ensure the stability of the position of the supporting platform; the problem of unstable position of the existing supporting platform is solved.

[0014] Second: According to the utility model, when the supporting platform needs to move downward, the contraction rope is pulled to rotate the reinforcement rod, and the bottom end of the reinforcement rod is separated from the side wall of the positioning block, so that the bottom end of the reinforcement rod is hollow, thereby preventing the reinforcement rod from jamming the bottom end of the supporting platform, causing the supporting platform to be unable to fall. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model is further explained below in conjunction with the accompanying drawings and embodiments:

[0016] Figure 1 This is a schematic diagram of the overall structure of the utility model lifting frame for highway construction;

[0017] Figure 2 This is a schematic diagram of the internal structure of the fixed base of the utility model;

[0018] Figure 3 This is a schematic diagram of the internal structure of the accommodating tube of the utility model;

[0019] Figure 4 It is a schematic diagram of the internal structure of the reinforcement groove of the utility model;

[0020] Figure 5 It is a schematic diagram of the internal structure of the accommodating tank of the utility model.

[0021] Description of reference numerals:

[0022] 1. Fixed base; 2. Universal wheel; 3. Limit plate; 4. Support platform; 5. Lifting motor; 6. Accommodating cylinder; 7. Connecting rod; 8. Connecting plate; 9. Adjusting bolt; 10. Reinforcement groove; 11. Reinforcement rod; 12. Positioning block; 13. Accommodating groove; 14. Extension spring; 15. Extension block; 16. Retraction rope. DETAILED DESCRIPTION

[0023] The utility model is described in detail below, and the technical solutions in the embodiments of the utility model are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] The utility model provides a lifting frame for highway construction through improvement. The technical solution of the utility model is:

[0025] like Figure 1-Figure 4 As shown, a lifting frame for highway construction comprises a fixed base 1, a plurality of universal wheels 2 are fixedly installed on the bottom wall of the fixed base 1, two limit plates 3 are fixedly installed on the top wall of the fixed base 1, a supporting platform 4 is arranged on the top of the fixed base 1, and the supporting platform 4 is slidably installed between the two limit plates 3, a lifting motor 5 is fixedly installed on the inner bottom wall of the fixed base 1, a receiving tube 6 is arranged on the top of the lifting motor 5, and the receiving tube 6 is fixedly installed on the inner side wall of the fixed base 1, a plurality of connecting rods 7 are slidably installed on the top wall of the receiving tube 6, and the plurality of connecting rods 7 are equidistantly distributed inside the receiving tube 6 in a circumferential manner, a connecting plate 8 is fixedly installed on the bottom wall of the connecting rod 7, an adjusting bolt 9 is fixedly installed on the output shaft of the lifting motor 5, the top end of the adjusting bolt 9 is rotatably installed on the inner top wall of the receiving tube 6 through a bearing, and the connecting plate 8 is threadedly installed on the side wall of the adjusting bolt 9, two reinforcing rods 11 are arranged on the bottom wall of the supporting platform 4, and the two reinforcing rods 11 are rotatably installed at the diagonal positions of the bottom wall of the supporting platform 4 respectively, the fixed base 1 The top wall of the support platform 4 is provided with two reinforcement grooves 10, which are respectively aligned with the two reinforcement rods 11. The inner bottom wall of the reinforcement groove 10 is equidistantly fixed with a plurality of positioning blocks 12, which are triangular in shape. The staff stands inside the support platform 4, and then controls the rotation of the output end of the lifting motor 5, so that the connecting plate 8 threadedly mounted on the side wall of the adjusting bolt 9 moves up and down, and the connecting rod 7 fixedly mounted on the top wall of the connecting plate 8 moves with the movement of the connecting plate 8, and the plurality of connecting rods 7 are aligned with each other. The position of the connecting plate 8 is limited so that the connecting plate 8 will not rotate with the rotation of the adjusting bolt 9. Since the reinforcing rod 11 is rotatably installed on the bottom wall of the supporting platform 4, when the supporting platform 4 moves upward, the reinforcing rod 11 will rotate downward due to the influence of gravity, and the bottom end of the reinforcing rod 11 will be stuck on the side wall of the positioning block 12. The bottom end of the supporting platform 4 is supported by two reinforcing rods 11, and the position of the supporting platform 4 is reinforced to ensure the stability of the position of the supporting platform 4.

[0026] like Figure 1-Figure 4As shown, in one embodiment, in order to facilitate the downward movement of the supporting platform 4, a retractable rope 16 is fixedly installed on the side wall of the reinforcement rod 11, and the top end of the retractable rope 16 passes through the side wall of the supporting platform 4 and extends to the interior of the supporting platform 4; when the supporting platform 4 needs to move downward, the retractable rope 16 is pulled to rotate the reinforcement rod 11, and the bottom end of the reinforcement rod 11 is disengaged from the side wall of the positioning block 12, so that the bottom end of the reinforcement rod 11 is hollow, thereby preventing the reinforcement rod 11 from jamming the bottom end of the supporting platform 4, causing the supporting platform 4 to be unable to fall.

[0027] like Figure 4-Figure 5 As shown, in one embodiment, in order to facilitate the rotation of the reinforcement rod 11, a receiving groove 13 is opened on the bottom wall of the reinforcement rod 11, and an extension block 15 is slidably installed inside the receiving groove 13, and an extension spring 14 is fixedly connected inside the receiving groove 13; the elasticity of the extension spring 14 is utilized to push the extension block 15 to extend outward, so that the extension block 15 is stuck on the side wall of the universal wheel 2, and the position of the supporting platform 4 is reinforced. When the staff pulls the retraction rope 16 to rotate the reinforcement rod 11, the side wall of the extension block 15 is squeezed by the side wall of the positioning block 12 and squeezed into the interior of the receiving groove 13, thereby shortening the length of the reinforcement rod 11 and avoiding the position of the reinforcement rod 11 being stuck, resulting in the retraction rope 16 being unable to pull the reinforcement rod 11 to rotate.

[0028] The specific working method is: the staff stands inside the supporting platform 4, and then controls the rotation of the output end of the lifting motor 5 to make the connecting plate 8 threadedly installed on the side wall of the adjusting bolt 9 move up and down, and the connecting rod 7 fixedly installed on the top wall of the connecting plate 8 moves with the movement of the connecting plate 8, and multiple connecting rods 7 limit the position of the connecting plate 8, so that the connecting plate 8 will not rotate with the rotation of the adjusting bolt 9. Since the reinforcement rod 11 is rotatably installed on the bottom wall of the supporting platform 4, when the supporting platform 4 moves upward, the reinforcement rod 11 will rotate downward due to the influence of gravity, and the bottom end of the reinforcement rod 11 will be stuck on the side wall of the positioning block 12. The bottom end of the supporting platform 4 is supported by two reinforcement rods 11, the position of the supporting platform 4 is reinforced, and the position of the supporting platform 4 is reinforced to ensure the supporting platform. The position of the platform 4 is stable; when the supporting platform 4 needs to move downward, the retraction rope 16 is pulled to rotate the reinforcement rod 11, and the bottom end of the reinforcement rod 11 is separated from the side wall of the positioning block 12, so that the bottom end of the reinforcement rod 11 is hollow, avoiding the reinforcement rod 11 from getting stuck with the bottom end of the supporting platform 4, resulting in the supporting platform 4 being unable to fall; the extension block 15 is pushed outward by the elasticity of the extension spring 14, so that the extension block 15 is stuck on the side wall of the universal wheel 2, and the position of the supporting platform 4 is reinforced. When the staff pulls the retraction rope 16 to rotate the reinforcement rod 11, the side wall of the extension block 15 is squeezed by the side wall of the positioning block 12 and squeezed into the interior of the accommodating groove 13, shortening the length of the reinforcement rod 11, avoiding the position of the reinforcement rod 11 being stuck, resulting in the retraction rope 16 being unable to pull the reinforcement rod 11 to rotate.

[0029] The technical means disclosed in the utility model are not limited to the technical means disclosed in the above technical means, but also include technical solutions composed of equivalent replacement of the above technical features. Matters not covered in the utility model belong to the common knowledge of those skilled in the art.

Claims

1. A lifting frame for highway construction, comprising a fixed base (1), a supporting platform (4) being arranged on the top of the fixed base (1), characterized in that: A lifting motor (5) is fixedly mounted on the inner bottom wall of the fixed base (1); a receiving tube (6) is arranged on the top of the lifting motor (5); the receiving tube (6) is fixedly mounted on the inner side wall of the fixed base (1); a plurality of connecting rods (7) are slidably mounted on the top wall of the receiving tube (6); a connecting plate (8) is fixedly mounted on the bottom wall of the connecting rod (7); an adjusting bolt (9) is fixedly mounted on the output shaft of the lifting motor (5); the connecting plate (8) is threadedly mounted on the side wall of the adjusting bolt (9); two reinforcing rods (11) are arranged on the bottom wall of the supporting platform (4); two reinforcing grooves (10) are provided on the top wall of the fixed base (1); a plurality of positioning blocks (12) are fixedly mounted on the inner bottom wall of the reinforcing groove (10) at equal intervals.

2. A lifting frame for highway construction according to claim 1, characterized in that: A retractable rope (16) is fixedly mounted on the side wall of the reinforcement rod (11), and the top end of the retractable rope (16) penetrates the side wall of the supporting platform (4) and extends to the interior of the supporting platform (4).

3. A lifting frame for highway construction according to claim 1, characterized in that: The bottom wall surface of the reinforcing rod (11) is provided with a receiving groove (13), an extension block (15) is slidably mounted inside the receiving groove (13), and an extension spring (14) is fixedly connected inside the receiving groove (13).

4. The lifting frame for highway construction according to claim 1, characterized in that: The plurality of connecting rods (7) are equidistantly distributed around the circumference of the interior of the accommodating tube (6), and the top end of the adjusting bolt (9) is rotatably mounted on the top wall surface of the interior of the accommodating tube (6) via a bearing.

5. The lifting frame for highway construction according to claim 1, characterized in that: The two reinforcement rods (11) are rotatably mounted at diagonal positions of the bottom wall of the supporting platform (4), the two reinforcement grooves (10) are aligned with the two reinforcement rods (11), and the positioning block (12) is triangular in shape.

6. The lifting frame for highway construction according to claim 1, characterized in that: A plurality of universal wheels (2) are fixedly mounted on the bottom wall of the fixed base (1), two limit plates (3) are fixedly mounted on the top wall of the fixed base (1), and the supporting platform (4) is slidably mounted between the two limit plates (3).

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