Protective frame for bridge construction

Abstract

The utility model discloses a protective frame for bridge construction, which comprises a protective frame main body, the lower part of the protective frame main body is connected with a protective frame platform base through a hydraulic lifting mechanism, and rolling wheels are arranged at the positions of two opposite sides of the protective frame platform base below the protective frame platform base. By arranging the ladder and the supporting rods, constructors can conveniently enter the protection box, and when the protection frame moves, the connecting mechanism can rotate to the position parallel to the side edge of the platform base of the protection frame through the rotating shaft, so that the space needed by movement of the protection frame is reduced, and meanwhile the fixing rods and the connecting mechanism are prevented from being collided and damaged in the movement process of the protection frame; and by arranging the telescopic protective net, constructors can enter and exit conveniently, and the safety of the constructors is guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of safety protection, in particular to a protection frame for bridge construction. Background Art

[0002] Nowadays, as more and more bridges are built, and the bridges are getting longer and higher, their maintenance work is also gradually increasing. It is often faced with the need to repair multiple parts of the same bridge at the same time, and the locations that need to be repaired are relatively high, which requires professional bridge maintenance personnel to carry out the maintenance. At present, the equipment possessed by the bridge maintenance construction team, such as protective frames, cannot keep up with the new application requirements. In addition, due to the increase in construction height, further protection of construction safety is very necessary. Since there are usually more than one location that needs to be repaired and the heights are different, higher requirements are also placed on the flexibility of the protective frames used for maintenance. The stability, safety, and flexibility of the protective frames used for bridge construction are all obvious problems that need to be solved urgently. This involves the safety of the construction workers and also the efficiency of the maintenance construction. Therefore, it is urgent to develop a new protective frame for bridge construction to solve the above problems. In view of this, the present utility model is specially proposed. Summary of the Invention

[0003] In view of the above problems, the utility model provides a protective frame for bridge construction, which solves the problems that the protective frame for bridge construction is fixed in height and cannot be adjusted or moved, and is inconvenient for construction workers to get on and off, which is unsafe for construction workers and construction tools are easy to fall.

[0004] The technical solution adopted by the utility model is: a protective frame for bridge construction, characterized in that it includes a protective frame body, a protective box, a retractable protective net, a protective plate, a ladder, a hydraulic lifting mechanism, rolling wheels, a connecting mechanism, a protective frame platform base, a support rod, and a fixing rod;

[0005] The main body of the protective frame is connected to the platform base of the protective frame through a hydraulic lifting mechanism. The extension and contraction of the hydraulic lifting mechanism drives the main body of the protective frame to move up and down, and the height of the protective frame is adjusted;

[0006] The bottom of the protective frame platform base is provided with rolling wheels for movement;

[0007] The four corners of the outer side of the protective frame platform base are respectively provided with connection mechanisms for connecting fixing rods, and the fixing rods are used to fix the protective frame;

[0008] The main body of the protection frame includes a protection box. The box body of the protection box is square and consists of a protection plate and a retractable protection net. The protection plate includes a bottom protection plate and a side protection plate. A retractable protection net is set on one side of the protection box.

[0009] The edge of the corresponding bottom protective plate on the side where the retractable protective net is located is fixedly connected to the ladder. A support rod is set at the rear end of the ladder. One end of the support rod is fixed to the bottom of the ladder, and the other end is fixed to a position close to the center point of the bottom protective plate.

[0010] Furthermore, four rolling wheels for movement are provided under the protective frame platform base at two opposite sides of the protective frame platform base, and two rolling wheels are provided on each side.

[0011] Furthermore, the scroll wheel is driven by a wheel motor.

[0012] Furthermore, the ladder is fixedly connected to the bottom protective plate by welding.

[0013] Furthermore, the diameter of the rolling wheel is smaller than the length of the fixing rod.

[0014] Furthermore, a rotating shaft is provided in the connecting mechanism, which can rotate the connecting mechanism to a position parallel to the side of the protective frame platform base.

[0015] Furthermore, the sides of the two protective plates connected to the retractable protective net are provided with grooves with bayonets at the top, the lower cross bar of the retractable protective net is fixedly connected to the bottom protective plate, and the retractable protective net is connected to the protective plate through the cooperation of the slider and the groove, and retractable protrusions are provided at both ends of the slider. The up and down movement of the upper cross bar of the retractable protective net is realized through the cooperation between the groove and the slider and the cooperation between the bayonet and the protrusion.

[0016] Furthermore, the protective net is made of soft nylon material.

[0017] Furthermore, a rotating cross bar is provided at the upper end of the fixing rod, and a rubber foot pad is fixedly provided at the bottom end.

[0018] Advantages of this utility model:

[0019] The utility model drives the up and down movement of the protection frame main body through the extension and contraction of the hydraulic lifting mechanism, thereby completing the adjustment of the height of the protection frame.

[0020] The movement of the protective frame is facilitated by setting rolling wheels; the fixing rods are connected through a connecting mechanism, and the protective frame is fixed by four fixing rods to ensure the stability of the protective frame during operation. The ladder and support rods are set to facilitate construction workers to enter the protective box. When the protective frame moves, the connecting mechanism can be rotated to a position parallel to the side of the protective frame platform base through the rotating shaft to reduce the space required for the movement of the protective frame while avoiding collision and damage to the fixing rods and the connecting mechanism during the movement of the protective frame.

[0021] By setting up a retractable protective net, it is not only convenient for construction workers to enter and exit, ensuring the safety of construction workers, but also prevents construction tools from falling. The utility model has a simple structure and strong practicality, and can meet the requirements of stability, safety and flexibility at the same time.

[0022] In addition to the above-described purposes, features and advantages, the present invention has other purposes, features and advantages. The present invention will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0024] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0025] Figure 1 This is a schematic diagram of the overall structure of the hydraulic lifting mechanism of the utility model when it is in a compressed state;

[0026] Figure 2 This is a schematic diagram of the overall structure of the hydraulic lifting mechanism of the utility model when it is in an extended state;

[0027] Figure 3 It is a side view of a protective frame for bridge construction of the present utility model.

[0028] Reference numerals:

[0029] 1. Protective box; 2. Retractable protective net; 3. Protective plate; 4. Ladder; 5. Hydraulic lifting mechanism; 6. Rolling wheels; 7. Connecting mechanism; 8. Protective frame platform base; 9. Support rod; 10. Fixing rod. DETAILED DESCRIPTION

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0031] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0032] refer to Figures 1 to 3 As shown, a protective frame for bridge construction includes a protective frame body, a protective box 1, a retractable protective net 2, a protective plate 3, a ladder 4, a hydraulic lifting mechanism 5, a rolling wheel 6, a connecting mechanism 7, a protective frame platform base 8, a support rod 9, and a fixing rod 10;

[0033] The bridge construction protection frame has a main body connected to a protection frame platform base 8 via a hydraulic lifting mechanism 5. The hydraulic lifting mechanism 5 is extended and retracted to drive the main body of the protection frame up and down, adjusting the height of the protection frame. The bottom of the protection frame platform base 8 is provided with rolling wheels 6 for movement. Four rolling wheels 6 are provided below the protection frame platform base 8, located on two opposite sides of the protection frame platform base 8, with two rolling wheels 6 on each side. The rolling wheels 6 facilitate the movement of the bridge construction protection frame during construction, to address situations where there are more than one locations requiring repair, and the locations requiring repair are close together, making it inconvenient to use a maintenance vehicle. Connecting mechanisms 7 for connecting to fixing rods 10 are provided at the four corners of the outer side of the protection frame platform base 8. The fixing rods 10 are used to secure the protection frame. During construction, the fixing rods 10 secure the protection frame, and the length of the fixing rods 10 is greater than the diameter of the rolling wheels 6 to prevent the rolling wheels 6 from adversely affecting the stability of the protection frame. The main body of the protective frame includes a protective box 1. The box body of the protective box 1 is square and consists of a protective plate 3 and a retractable protective net 2. The protective plate 3 includes a bottom protective plate and a side protective plate. Three side protective plates are set on the three sides of the protective box 1, and a retractable protective net 2 is set on the other side; the construction safety of the construction workers is guaranteed as much as possible and the accidental falling of construction tools is avoided as much as possible.

[0034] The edge of the bottom protective plate corresponding to the side where the retractable protective net 2 is located is fixedly connected to the ladder 4. A support rod 9 is set at the rear end of the ladder 4. One end of the support rod 9 is fixed to the bottom of the ladder 4, and the other end is fixed to a position close to the center point of the bottom protective plate. By setting up the ladder 4, the problem that the initial height of the protective frame body is too high due to the installation of the hydraulic lifting mechanism 5, which makes it inconvenient for construction workers to enter and exit the protective box 1, is solved. When the hydraulic lifting mechanism 5 is in a compressed state, as shown in FIG. Figure 1The lower end of the ladder 4 is close to the ground. The ladder 4 is fixedly connected to the bottom protective plate by welding to increase the stability of the ladder 4 and ensure the safety of construction workers. The support rod 9 provided on the ladder 4 further improves the stability of the ladder 4, thereby ensuring the safety of construction workers.

[0035] A rotating shaft is provided in the connecting mechanism 7, which can rotate the connecting mechanism 7 to a position parallel to the side of the protective frame platform base 8. The fixing rod 10 can be raised and lowered by rotating the screw thread to adjust its vertical distance from the ground. In order to reduce the space required for the protective frame to move and prevent the fixing rod and the connecting mechanism from being damaged by collision during the movement of the protective frame, a rotating cross bar is provided at the upper end of the fixing rod (10) to facilitate manual rotation operation, and a rubber foot pad is fixed at the bottom end to increase stability.

[0036] The sides of the two protective plates 3 connected to the retractable protective net 2 are provided with grooves with bayonets at the top. The lower cross bar of the retractable protective net 2 is fixedly connected to the bottom protective plate. The retractable protective net 2 is connected to the protective plate 3 through a slider that cooperates with the groove. Retractable protrusions are provided at both ends of the slider. The upper cross bar of the retractable protective net 2 can be moved up and down by cooperating with the groove and the slider and the bayonet and the protrusion. The setting of the retractable protective net can not only facilitate the entry and exit of construction personnel and ensure the safety of construction personnel, but also ensure that construction tools are not easy to fall. The protective net can be made of nylon net.

[0037] When the bridge needs repair and construction, the bridge construction protection frame is first transported to the location where the bridge needs repair by a maintenance vehicle, and the protection frame is moved to the required position by the rolling wheel 6. The fixing rod 10 is moved downward by rotating the thread adjustment until the rolling wheel 6 just leaves the ground, thereby fixing the protection frame to the ground by the fixing rod 10. At this time, the bridge construction protection frame is in the initial state, the hydraulic lifting mechanism 5 is in a compressed state, and the lower end of the ladder 4 is close to the ground. The construction personnel enter the protection box 1 through the ladder 4 and pull up the upper cross bar of the retractable protective net 2 to make the bayonet cooperate with the protrusion, and then adjust the height of the protection frame to the required height for construction by controlling the hydraulic lifting mechanism 5. After completing the bridge maintenance and construction work, the construction workers put together their tools, set the hydraulic lifting mechanism 5 to the compressed state, adjust the protective frame to the lowest position, and then pull down the upper crossbar of the retractable protective net 2. The construction workers return to the ground through the ladder 4, and then adjust the fixed rod 10 upward by rotating the thread until the rolling wheel 6 returns to the ground. The connecting mechanism 7 is rotated to a position parallel to the side of the protective frame platform base 8 through the rotating shaft, and the protective frame is assisted by the rolling wheel 6 to return to the maintenance vehicle, completing the entire work process.

[0038] The present invention drives the up and down movement of the main body of the protective frame through the extension and retraction of the hydraulic lifting mechanism 5, thereby completing the adjustment of the height of the protective frame. By providing rolling wheels 6, the movement of the protective frame is facilitated; the fixing rods 10 are connected through the connecting mechanism 7, and the protective frame is fixed by four fixing rods 10 to ensure the stability of the protective frame during operation. By providing a ladder 4 and a support rod 9, it is convenient for construction personnel to enter the protective box 1. When the protective frame moves, the connecting mechanism 7 can be rotated to a position parallel to the side of the protective frame platform base 8 through the rotating shaft to reduce the space required for the movement of the protective frame while preventing the fixing rods and the connecting mechanism 7 from being damaged by collision during the movement of the protective frame. By providing a retractable protective net 2, it is convenient for construction personnel to enter and exit, ensure the safety of construction personnel, and ensure that construction tools are not easily dropped. The present invention has a simple structure and strong practicality. In addition to the purposes, features and advantages described above, the present invention has other purposes, features and advantages.

[0039] It can be understood from the accompanying drawings that in the embodiments of the present invention, the fixed connection and relative sliding of the components can be achieved by conventional methods in the prior art, and the specific implementation method will not be further described in the specification of the present invention.

[0040] The above embodiments and descriptions are only for explaining the principle and best embodiment of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements shall fall within the scope of the present invention to be protected.

Claims

1. A protective frame for bridge construction, characterized in that: The invention comprises a protective frame body, a protective box (1), a retractable protective net (2), a protective plate (3), a ladder (4), a hydraulic lifting mechanism (5), a rolling wheel (6), a connecting mechanism (7), a protective frame platform base (8), a support rod (9), and a fixing rod (10); the protective frame body is connected to the protective frame platform base (8) through the hydraulic lifting mechanism (5); the hydraulic lifting mechanism (5) is extended and retracted to drive the protective frame body to move up and down, thereby adjusting the height of the protective frame; a rolling wheel (6) for moving is provided at the bottom of the protective frame platform base (8); and a fixing rod for connecting is provided at the four corners of the outer side of the protective frame platform base (8). The connecting mechanism (7) of the protective frame (10) is provided, and the fixing rod (10) is used to fix the protective frame; the protective frame body includes a protective box (1), the box body of the protective box (1) is square, and is composed of the protective plate (3) and the retractable protective net (2), the protective plate (3) includes a bottom protective plate and a side protective plate, and the retractable protective net (2) is provided on one side of the protective box (1), and the edge of the corresponding bottom protective plate on the side where the retractable protective net (2) is located is fixedly connected to the ladder (4), and the rear end of the ladder (4) is provided with a supporting rod (9), one end of the supporting rod (9) is fixed to the bottom of the ladder (4), and the other end is fixed to a position close to the center point of the bottom protective plate.

2. A protective frame for bridge construction according to claim 1, characterized in that: Four rolling wheels (6) for movement are provided below the protective frame platform base (8) at positions on two opposite sides of the protective frame platform base (8), with two rolling wheels (6) being provided on each side.

3. A protective frame for bridge construction as claimed in claim 2, characterized in that: The rolling wheel (6) is driven by a wheel motor.

4. A protective frame for bridge construction as claimed in claim 2, characterized in that: The ladder (4) is fixedly connected to the bottom protective plate by welding.

5. A protective frame for bridge construction as claimed in claim 3, characterized in that: The diameter of the rolling wheel (6) is smaller than the length of the fixing rod (10).

6. A protective frame for bridge construction as claimed in claim 4, characterized in that: A rotating shaft is provided in the connecting mechanism (7), which can rotate the connecting mechanism (7) to a position parallel to the side of the protective frame platform base (8).

7. A protective frame for bridge construction as claimed in claim 5, characterized in that: The sides of the two protective plates (3) connected to the retractable protective net (2) are provided with grooves with bayonet holes at the top, the lower crossbar of the retractable protective net (2) is fixedly connected to the bottom protective plate, the retractable protective net (2) is connected to the protective plate (3) through a slider that cooperates with the groove, and retractable protrusions are provided at both ends of the slider. The upper crossbar of the retractable protective net (2) can be moved up and down by the cooperation between the groove and the slider and the cooperation between the bayonet and the protrusion.

8. A protective frame for bridge construction as claimed in claim 6, characterized in that: The protective net is made of soft nylon material.

9. A protective frame for bridge construction according to any one of claims 1 to 8, characterized in that: The upper end of the fixed rod (10) is provided with a rotating cross bar, and the bottom end is fixedly provided with a rubber foot pad.

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