Self-locking support bracket for bridge demolition

Abstract

The utility model provides a bridge demolishs with self -locking support support, relates to bridge construction technical field to solve the structure that the existing bridge demolishs with the lack of adjusting support surface and bridge contact angle when the support is installed on uneven ground and uses, the support surface is easy to appear inclination, thereby cannot completely adhere to bridge contact surface, and the problem of providing good support to bridge, including: fixed frame, the fixed frame is rectangular structure, and it is hollow in fixed frame inside, and the contact plate is hinged and is installed in movable frame top, and the matching groove on contact plate and movable frame top's adjusting block slide fit, through the rotation screw rod drive adjusting block along the sliding groove sliding, with the help of adjusting block and contact plate bottom side matching groove's pasting effect, can flexible regulation contact plate's inclination angle, to offset the angle difference of support when installing, even if the support is installed on uneven ground, also can make contact plate support surface and bridge contact surface completely adhere, ensure the stability of support.

Description

Technical Field

[0001] This utility model belongs to the field of bridge construction technology, and more specifically, it relates to a self-locking support bracket for bridge demolition. Background Technology

[0002] Bridge demolition can be divided into two main categories: blasting demolition and mechanical demolition. Each category includes various applications and has its own scope of application. Mechanical demolition refers to the use of mechanical equipment to demolish bridges by breaking, dividing, or hoisting them. During the mechanical demolition process, it is necessary to support the main load-bearing points of the bridge to prevent it from collapsing.

[0003] Based on existing technology, it has been found that the design of existing bridge dismantling scaffolding has some shortcomings: First, the scaffolding used for bridge demolition lacks a self-locking structure. The scaffolding is usually supported by hydraulic cylinders. When the hydraulic cylinders are subjected to excessive force, they are prone to damage, which can cause the scaffolding to collapse along with the bridge, thus damaging the scaffolding. Secondly, the scaffolding used for bridge demolition lacks a structure for adjusting the contact angle between the support surface and the bridge. When the scaffolding is installed on uneven ground, the support surface of the scaffolding is prone to tilting, thus failing to fully fit the contact surface of the bridge and provide good support for the bridge. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model relates to a self-locking support bracket for bridge demolition. This solves the problem that existing bridge demolition brackets lack a self-locking structure. The brackets are typically supported by hydraulic cylinders, which are prone to damage when subjected to excessive force, causing the originally erected bracket to collapse along with the bridge. Furthermore, bridge demolition brackets lack a structure for adjusting the contact angle between the support surface and the bridge. When the bracket is installed on uneven ground, the support surface is prone to tilting, failing to fully conform to the bridge contact surface and provide adequate support.

[0005] The first aspect of this utility model provides a self-locking support bracket for bridge dismantling, achieved by the following specific technical means: A self-locking support bracket for bridge dismantling, comprising: The fixed frame is rectangular and hollow inside. Double-ended lead screws are rotatably installed on the upper ends of both sides of the fixed frame. A movable frame is provided at the upper end of the interior of the fixed frame. The movable frame can slide up and down along the interior of the fixed frame. The bottom of the movable frame is fixed to the piston rod on the hydraulic cylinder at the inner end of the fixed frame. The positioning groove in the movable frame can be inserted and engaged with the locking block on the top of the fixed frame.

[0006] Furthermore, a hydraulic cylinder is installed at the lower end of the interior of the fixed frame, and the bottom of the hydraulic cylinder is fixed to the fixed frame. A fixing plate is installed in the middle position inside the fixed frame, and the fixing plate is penetrated by the hydraulic cylinder.

[0007] Furthermore, the top of the fixed frame is provided with top grooves on both sides. Each set of top grooves has a locking block slidably installed inside by means of a spring. The locking block can extend from the side end of the fixed frame. Push plates are slidably installed at both ends of each set of top grooves. The push plates extend from the side end of the fixed frame and are threadedly connected to a double-ended lead screw at the side end of the fixed frame. The spring pushes the side end of the locking block to contact the push plate.

[0008] Furthermore, the movable frame has a rectangular structure, and positioning slots are provided at equal intervals on both sides of the movable frame.

[0009] Furthermore, the movable frame is symmetrically provided with side grooves on both sides, and reinforcing ribs are inserted and fixed inside the side grooves.

[0010] Furthermore, the top of the movable frame is provided with a sliding groove, and an adjusting block is movably installed inside the sliding groove via a screw. The top of the adjusting block has a wedge-shaped structure.

[0011] Furthermore, a contact plate is provided on the top of the movable frame, the side end of the contact plate is hinged to the movable frame, and a mating groove is provided on the bottom side of the contact plate, which fits against the top of the adjusting block.

[0012] Compared with the prior art, the present invention has the following beneficial effects: 1. In this device, a spring-driven locking block is installed on the top of the fixed frame, and positioning slots are set at equal intervals on both sides of the movable frame. When the hydraulic cylinder pushes the movable frame to the target height, the locking block can automatically engage and lock with the corresponding positioning slot. The locking block can effectively distribute the load borne by the hydraulic cylinder. Even if the hydraulic cylinder is damaged due to excessive force, the locking block can still provide stable support for the bridge through the movable frame, preventing the support from being damaged when the bridge collapses.

[0013] 2. In this device, a contact plate is hinged to the top of the movable frame, and the mating groove on the contact plate is slidably engaged with the adjusting block on the top of the movable frame. By rotating the screw, the adjusting block is driven to slide along the groove. With the help of the contacting action of the adjusting block and the mating groove on the bottom side of the contact plate, the tilt angle of the contact plate can be flexibly adjusted (maximum adjustment range ±15°) to compensate for the angle difference of the bracket during installation. Even if the bracket is installed on uneven ground, the support surface of the contact plate can be completely engaged with the contact surface of the bridge to ensure the stability of the support.

[0014] 3. In this device, by opening side slots at both ends of the movable frame and enabling the movable frame to install reinforcing ribs through the side slots, its compressive strength can be significantly improved, providing additional protection for the support. At the same time, whether to install reinforcing ribs can be selected according to actual support requirements. Under the premise of meeting the strength requirements, the weight of the device itself can be effectively reduced, and the ease of use can be improved. Attached Figure Description

[0015] Those skilled in the art will gain a better understanding of the present invention through the accompanying drawings, and the advantages of the present invention will be more clearly demonstrated. The drawings described herein are for illustrative purposes only for the selected embodiments and not for all possible implementations, and are not intended to limit the scope of the present invention.

[0016] In the attached diagram: Figure 1 This is a three-dimensional structural diagram of the present invention.

[0017] Figure 2 This is a schematic diagram showing the disassembly effect of this utility model.

[0018] Figure 3 This is a schematic diagram of the connection structure between the fixed frame and the movable frame of this utility model.

[0019] Figure 4 This is a schematic diagram of the internal structure of the fixing frame of this utility model.

[0020] Figure 5 This is a schematic diagram of the top cross-sectional structure of the movable frame of this utility model.

[0021] In the diagram, the correspondence between component names and drawing numbers is as follows: 1. Fixed frame; 101. Double-ended lead screw; 102. Hydraulic cylinder; 103. Fixed plate; 104. Top groove; 1041. Locking block; 1042. Push plate; 2. Movable frame; 201. Positioning groove; 202. Side groove; 2021. Reinforcing rib; 203. Slide groove; 2031. Adjusting block; 204. Contact plate; 2041. Mating groove. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the described embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Example 1: As shown in the attached document Figure 1 To be continued Figure 5 As shown: This utility model provides a self-locking support bracket for bridge dismantling, including: a fixed frame 1; the fixed frame 1 has a rectangular structure and the interior of the fixed frame 1 is hollow, and double-headed screws 101 are rotatably installed on the upper ends of both sides of the fixed frame 1; a movable frame 2 is provided at the upper end of the interior of the fixed frame 1, the movable frame 2 can slide up and down along the interior of the fixed frame 1, the bottom of the movable frame 2 is fixed to the piston rod on the hydraulic cylinder 102 at the inner end of the fixed frame 1, and the positioning groove 201 in the movable frame 2 can be inserted and cooperated with the locking block 1041 at the top of the fixed frame 1.

[0024] As a second embodiment of this application, based on embodiment one, such as Figure 3 and Figure 4 As shown, a hydraulic cylinder 102 is installed at the lower end of the interior of the fixed frame 1. The bottom of the hydraulic cylinder 102 is fixed to the fixed frame 1. A fixing plate 103 is installed in the middle of the interior of the fixed frame 1, and the fixing plate 103 is penetrated by the hydraulic cylinder 102. Top grooves 104 are provided on both sides of the top of the fixed frame 1. A locking block 1041 is slidably installed inside each set of top grooves 104 through a spring. The locking block 1041 can extend from the side end of the fixed frame 1. Push plates 1042 are slidably installed at both ends of each set of top grooves 104. The push plates 1042 extend from the side end of the fixed frame 1. The side end extends out and is threadedly connected to the double-ended screw 101 located at the side end of the fixed frame 1. The spring pushes the side end of the locking block 1041 to contact the push plate 1042. The movable frame 2 has a rectangular structure, and positioning grooves 201 are provided at equal intervals on both sides of the movable frame 2. The fixed frame 1 is provided so that the movable frame 2 can be installed on the fixed frame 1. The double-ended screw 101 is provided so that the push plate 1042 in the top groove 104 can be controlled to slide by rotating the double-ended screw 101. The hydraulic cylinder 102 is provided so that the movable frame 2 can be lifted by the hydraulic cylinder 102, which can be used to lift the bridge. The system provides support; a fixed plate 103 is provided, through which the hydraulic cylinder 102 passes, allowing it to be fixedly installed in a central position inside the fixed frame 1, while also providing limiting support for the hydraulic cylinder 102; a top groove 104 is provided, through which a locking block 1041 and a push plate 1042 can be installed on the top of the fixed frame 1; the locking block 1041 is provided so that, during the movement of the movable frame 2 on the fixed frame 1, the locking block 1041 can automatically engage with the positioning groove 201 at the corresponding height, thereby achieving... The movable frame 2 is supported on the fixed frame 1; a push plate 1042 is provided, which can drive the locking block 1041 to slide when the double-headed screw 101 is rotated, and the locking block 1041 is retracted into the top groove 104 so that the movable frame 2 can move downward on the fixed frame 1; the movable frame 2 is provided, and the bridge can be supported by the hydraulic cylinder 102 pushing the movable frame 2; a positioning groove 201 is provided, and the movable frame 2 can be locked and fixed after it is raised to a certain height by inserting the positioning groove 201 into the locking block 1041.

[0025] This application involves slidingly installing locking blocks 1041 at both ends of the top of the fixed frame 1 and opening positioning grooves 201 on both sides of the movable frame 2. When the hydraulic cylinder 102 pushes the movable frame 2 to support the bridge, the locking blocks 1041 will engage and lock with the positioning grooves 201 at the corresponding height every time it rises to a certain height. This can distribute the pressure on the hydraulic cylinder 102. When the hydraulic cylinder 102 is damaged, the locking blocks 1041 can continue to support the bridge through the movable frame 2 to prevent collapse.

[0026] As a third embodiment of this application, based on embodiment one, as follows: Figure 3 As shown, the movable frame 2 has symmetrically arranged side grooves 202 on both sides, and reinforcing ribs 2021 are inserted and fixed inside the side grooves 202. The side grooves 202 are provided so that the reinforcing ribs 2021 can be installed into the interior of the movable frame 2. The reinforcing ribs 2021 can be installed into the side grooves 202 of the movable frame 2 to improve the compressive strength of the movable frame 2.

[0027] In this application, by inserting the reinforcing rib 2021 into the movable frame 2, additional support can be provided for the movable frame 2, thereby increasing the structural strength of the movable frame 2. In actual use, it can be determined whether the reinforcing rib 2021 is used according to the actual situation. If the strength of the movable frame 2 itself meets the usage requirements at that time, it is not necessary to install the reinforcing rib 2021, thereby reducing the weight of the device itself.

[0028] As a fourth embodiment of this application, based on embodiment one, as follows: Figure 3 and Figure 5 As shown, the top of the movable frame 2 is provided with a sliding groove 203, and an adjusting block 2031 is movably installed inside the sliding groove 203 via a screw. The top of the adjusting block 2031 has a wedge-shaped structure. The top of the movable frame 2 is provided with a contact plate 204, the side end of which is hinged to the movable frame 2. The bottom side of the contact plate 204 is provided with a mating groove 2041, which fits against the top of the adjusting block 2031. The sliding groove 203 allows the adjusting block 2031 to be slidably installed on the top of the movable frame 2. The adjusting block 2031 allows the angle of the contact plate 204 to be adjusted by moving it. The contact plate 204 allows the movable frame 2 to support the bridge by directly contacting it. The wedge-shaped mating groove 2041 allows the angle of the contact plate 204 to be adjusted on the top of the movable frame 2 by sliding the adjusting block 2031 against the mating groove 2041.

[0029] This application achieves this by hinged installation of a contact plate 204 on the top of the movable frame 2, and by allowing the adjusting block 2031 on the top of the movable frame 2 to slide against the mating groove 2041 on the contact plate 204. While the adjusting block 2031 moves, it can adjust the tilt of the contact plate 204 on the movable frame 2, with a maximum adjustment of ±15°. This ensures that the supporting surface of the contact plate 204 is always in close contact with the contact position of the cantilever beam.

[0030] The specific usage and function of this embodiment are as follows: In this utility model, such as Figures 1 to 5 As shown, first, place the fixed frame 1 on the ground at the location where the bridge needs to be supported. Determine whether to insert reinforcing ribs 2021 into the side grooves 202 of the movable frame 2 based on the load required to be borne by the movable frame 2. If it is necessary to increase the structural strength of the movable frame 2, install reinforcing ribs 2021 into the side grooves 202 at both ends. Rotate the screw in the top slide groove 203 of the movable frame 2, causing the adjusting block 2031 to slide along the slide groove 203. The wedge-shaped top of the adjusting block 2031 moves in contact with the mating groove 2041 on the bottom side of the contact plate 204, causing the contact plate 204, which is hinged to the movable frame 2, to rotate around the hinge point, keeping the contact plate 204 parallel to the contact surface of the bridge. Then, activate the hydraulic cylinder 102 inside the fixed frame 1. The piston rod of the hydraulic cylinder 102 pushes the movable frame 2 along the inside of the fixed frame 1... During the upward sliding process, the locking block 1041 in the top groove 104 of the fixed frame 1 remains in contact with the side wall of the movable frame 2 under the action of the spring. When the movable frame 2 rises to the target support height, the locking block 1041 automatically engages in the positioning groove 201 at the corresponding height of the movable frame 2 to achieve locking. The top surface of the contact plate 204 is in complete contact with the bridge contact surface. At this time, the locking block 1041 and the hydraulic cylinder 102 jointly bear the bridge pressure. After the bridge demolition operation is completed, the double-headed screws 101 on both sides of the fixed frame 1 are rotated to drive the push plate 1042 in the top groove 104 to slide. The push plate 1042 squeezes the locking block 1041 to retract it into the top groove 104 and disengage it from the positioning groove 201. Then, the piston rod of the hydraulic cylinder 102 is controlled to retract, driving the movable frame 2 to fall downward. Finally, the entire support can be removed.

[0031] The foregoing disclosure provides illustrations and descriptions, but is not intended to be exhaustive or to limit the embodiments to the precise forms disclosed. Modifications and variations can be made based on the above disclosure, or modifications and variations can be derived from the practice of the embodiments.

[0032] Even though specific combinations of features are recited in the claims or disclosed in the specification, these combinations are not intended to limit the disclosure of various embodiments. In fact, many of these features can be combined in ways not specifically recited in the claims and / or not specifically disclosed in the specification. Although each dependent claim listed below may depend directly on only one claim, the disclosure of various embodiments includes each dependent claim in combination with every other claim in the claim set.

Claims

1. A self-locking support bracket for bridge demolition, comprising: Fixed frame (1); the fixed frame (1) is a rectangular structure and the interior of the fixed frame (1) is hollow. The fixed frame (1) is characterized in that a double-headed screw (101) is rotatably installed on the upper ends of both sides of the fixed frame (1); a movable frame (2) is provided at the upper end of the interior of the fixed frame (1). The movable frame (2) can slide up and down along the interior of the fixed frame (1). The bottom of the movable frame (2) is fixed to the piston rod on the hydraulic cylinder (102) at the inner end of the fixed frame (1). The positioning groove (201) in the movable frame (2) can be inserted and cooperated with the locking block (1041) at the top of the fixed frame (1).

2. The self-locking support bracket for bridge demolition according to claim 1, characterized in that, A hydraulic cylinder (102) is provided at the lower end of the interior of the fixed frame (1). The bottom of the hydraulic cylinder (102) is fixed to the fixed frame (1). A fixing plate (103) is installed in the middle position inside the fixed frame (1). The fixing plate (103) is penetrated by the hydraulic cylinder (102).

3. The self-locking support bracket for bridge demolition according to claim 1, characterized in that, The top of the fixed frame (1) is provided with top grooves (104) on both sides. A locking block (1041) is slidably installed inside each set of top grooves (104) by means of a spring. The locking block (1041) can extend from the side end of the fixed frame (1). A push plate (1042) is slidably installed at both ends of each set of top grooves (104). The push plate (1042) extends from the side end of the fixed frame (1) and is threadedly connected to the double-ended screw (101) at the side end of the fixed frame (1). The spring pushes the side end of the locking block (1041) to contact the push plate (1042).

4. The self-locking support bracket for bridge demolition according to claim 1, characterized in that, The movable frame (2) is a rectangular structure, and positioning grooves (201) are provided at equal intervals on both sides of the movable frame (2).

5. A self-locking support bracket for bridge demolition according to claim 1, characterized in that, The movable frame (2) has symmetrically arranged side grooves (202) on both sides, and reinforcing ribs (2021) are inserted and fixed inside the side grooves (202).

6. A self-locking support bracket for bridge demolition according to claim 1, characterized in that, The top of the movable frame (2) is provided with a slide groove (203), and an adjusting block (2031) is movably installed inside the slide groove (203) by a screw. The top of the adjusting block (2031) is a wedge-shaped structure.

7. A self-locking support bracket for bridge demolition according to claim 6, characterized in that, The top of the movable frame (2) is provided with a contact plate (204), the side end of the contact plate (204) is hinged to the movable frame (2), and the bottom side of the contact plate (204) is provided with a mating groove (2041), which fits against the top of the adjusting block (2031).

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