Building steel bar dismantling mechanism

Abstract

A building steel bar dismantling mechanism comprises a fulcrum base, a left supporting frame A, a left supporting frame B, a right supporting frame A, a right supporting frame B and a clamp body structure, one end of the left supporting frame A and one end of the right supporting frame A are rotationally installed in the middle of the fulcrum base, and a left rotating shaft structure and a right rotating shaft structure are installed at the other end of the left supporting frame A and the other end of the right supporting frame A respectively. One end of the left supporting frame B and one end of the right supporting frame B are rotationally connected with the left supporting frame A and the right supporting frame A through a left rotating shaft structure and a right rotating shaft structure respectively, the other end of the left supporting frame B and the other end of the right supporting frame B are rotationally installed on the side portion of the clamp body structure, and a right-hand threaded hole and a left-hand threaded hole are formed in the left rotating shaft structure and the right rotating shaft structure respectively. A rotating screw structure is installed in the right-hand threaded hole and the left-hand threaded hole and further connected with a rotating driving mechanism. The steel bar dismounting device is simple in structure, the steel bar dismounting efficiency can be improved, and steel bar dismounting operation is more convenient and safer.

Description

Technical Field

[0001] The utility model belongs to the technical field of building demolition equipment, and in particular relates to a building steel bar demolition mechanism. Background Art

[0002] When the steel rod method is used to construct high-altitude buildings such as pier column tie beams and cap beams, the steel rod removal process is often extremely risky. At this time, there are no up and down passages and work platforms for high-altitude workers on the building. During the steel rod removal process, a crane and a cage can only be used as a way for the demolition workers to move up and down at high altitudes and as a construction work platform. During the process of removing the steel rods, the cage platform has to withstand irregular reverse forces and continue to shake. Therefore, not only is there a high risk of construction workers falling from heights, but the work platform cannot withstand too much reverse force of removal, and the efficiency of steel rod removal is also extremely low.

[0003] In the prior art, a patent document with a publication number of CN 113152928 B discloses a method for demolishing a super high-rise building, comprising the following steps: step 1, setting up an operating platform outside the building; step 2, pre-demolition; step 3, perforating and charging; step 4, safety protection; step 5, dust reduction and noise reduction protection; step 6, detonating explosives; step 7, after the blasting is completed, the slag removal team enters the site to clean up the slag; step 8, after the slag removal is completed, a temporary support for this layer is set up, and the top plate structure of the first demolition unit is cut and hoisted down; step 9, static cutting and demolition of the static cutting area and hoisting and lowering; step 10, construction in a construction cycle mode until the ground layer is completed. The above scheme is applied to the demolition of abandoned high-rise buildings, and is not suitable for the removal of steel bars remaining after the steel bar method of construction, because the steel bars are the supporting structure of the molds and construction platforms during the construction process, and the removal of steel bars can only be carried out after the pier formwork and the construction platform are completely removed. It is impossible to build a complex working platform for the removal of steel bars, otherwise the use of the steel bar method of construction would be putting the cart before the horse. Summary of the invention

[0004] Technical issues solved

[0005] In view of the deficiencies in the prior art, the utility model provides a building steel bar removal mechanism which has a simple structure, can improve the efficiency of steel bar removal, and is more convenient and safer to remove the steel bars.

[0006] The specific technical solutions are as follows:

[0007] A building steel rod dismantling mechanism comprises a fulcrum base, a left support frame A, a left support frame B, a right support frame A, a right support frame B and a clamping body structure, wherein one end of the left support frame A and the right support frame A are rotatably installed in the middle of the fulcrum base, and the other ends of the left support frame A and the right support frame A are respectively installed with a left rotating shaft structure and a right rotating shaft structure, one end of the left support frame B and the right support frame B are rotatably connected to the left support frame A and the right support frame A through the left rotating shaft structure and the right rotating shaft structure respectively, and the other ends of the left support frame B and the right support frame B are rotatably installed on the side of the clamping body structure, and a positive threaded hole and a reverse threaded hole are respectively opened in the left rotating shaft structure and the right rotating shaft structure, and a rotating screw structure is installed in the positive threaded hole and the reverse threaded hole, and the rotating screw structure has a positive screw portion and a reverse screw portion, and the positive threaded hole and the reverse threaded hole are respectively matched with the positive screw portion and the reverse screw portion, and the rotating screw structure is also connected to a rotating drive mechanism.

[0008] Preferably, a rubber pad is provided on the fulcrum base, and the fulcrum base is pressed tightly against the outer wall of the building through the rubber pad.

[0009] Preferably, the rotary drive mechanism is composed of a rotary motor and a reduction box structure, and the rotary motor, reduction box structure and rotary screw structure are sequentially transmission-connected.

[0010] Preferably, a mounting base is also included, the rotating motor and the reduction box structure are mounted on the mounting base, a rotating support seat is also mounted on the mounting base, and one end of the rotating screw structure is rotationally matched with the rotating support seat.

[0011] Preferably, the clamp body structure is provided with a clamp base, a fixed clamp body is provided at one end of the clamp base, a threaded hole platform is provided at the other end of the clamp base, a threaded hole is provided in the middle of the threaded hole platform, a screw structure is installed in the threaded hole, one end of the screw structure is connected to a clamping drive mechanism, the other end of the screw structure is connected to a movable clamp body, the movable clamp body is slidably installed on the clamp base, and the movable clamp body is arranged opposite to the fixed clamp body.

[0012] Preferably, the clamping drive mechanism is composed of a motor and a transmission gear box, the motor, the transmission gear box and the screw structure are sequentially connected in transmission, and jaw plates are installed on the opposite surfaces of the movable jaw body and the fixed jaw body.

[0013] The beneficial effects of the utility model are as follows: after the steel rod to be removed is located in the clamping opening between the movable clamp body and the fixed clamp body in the clamp body structure, the rotating screw structure is driven by the rotary drive mechanism to rotate forward or reversely, so that the left rotating shaft structure and the right rotating shaft structure are simultaneously opened outward or contracted inward, so that the left support frame A and the left support frame B, the right support frame A and the right support frame B are contracted or elongated, that is, the distance between the clamp body structure and the fulcrum base is contracted or elongated, and the rubber pad of the fulcrum base is pressed tightly against the outer wall of the building. Therefore, after the clamp body structure clamps the steel rod to be removed, the fulcrum base is pressed tightly against the outer wall of the building as a fixed fulcrum, avoiding the cage or the lifting mechanism from being stressed, thereby avoiding the generation of safety hazards, and the operation of removing the steel rod is more convenient and quick, and the process of continuously pulling out the steel rod by the clamp body structure is repeated, and the steel rod is pulled out until the steel rod is completely pulled out of the building, without the need for manual knocking operation, which can improve the efficiency of steel rod removal, and has lower removal costs and is not easy to damage the building. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the cross-sectional structure of the utility model as a whole.

[0015] Figure 2 It is a schematic diagram of the overall three-dimensional structure of the utility model.

[0016] In the figure: fulcrum base 1; left support frame A2; left support frame B3; right support frame A4; right support frame B5; clamp body structure 6; left rotating shaft structure 7; right rotating shaft structure 8; rotating screw structure 9; rotating drive mechanism 10; mounting base 11; rotating support seat 12;

[0017] Clamp base 61; fixed clamp body 62; threaded hole platform 63; screw structure 64; clamping drive mechanism 65; movable clamp body 66. DETAILED DESCRIPTION

[0018] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0019] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships 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. In addition, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", and "connect" should be understood in a broad sense. Example

[0020] like Figure 1 and Figure 2 As shown: a building steel rod removal mechanism, provided with a fulcrum base 1, a left support frame A2, a left support frame B3, a right support frame A4, a right support frame B5 and a clamping body structure 6, one end of the left support frame A2 and the right support frame A4 are respectively rotatably installed in the middle of the fulcrum base 1, and can also be installed on the same rotating shaft, but it is easy to cause interference or insufficient supporting strength, which is generally not adopted. A rubber pad is provided on the fulcrum base 1, and the fulcrum base 1 is pressed tightly against the outer wall of the building through the rubber pad.

[0021] A left rotating shaft structure 7 and a right rotating shaft structure 8 are respectively installed at the other end of the left support frame A2 and the right support frame A4. One end of the left support frame B3 and the right support frame B5 are rotatably connected to the left support frame A2 and the right support frame A4 through the left rotating shaft structure 7 and the right rotating shaft structure 8 respectively. The other ends of the left support frame B3 and the right support frame B5 are rotatably installed on the side of the clamping body structure 6. A positive threaded hole and a negative threaded hole are respectively opened in the left rotating shaft structure 7 and the right rotating shaft structure 8. A rotating screw structure 9 is installed in the positive threaded hole and the negative threaded hole. The rotating screw structure 9 has a positive screw portion and a negative screw portion. The positive threaded hole and the negative threaded hole cooperate with the positive screw portion and the negative screw portion respectively. The rotating screw structure 9 is also connected to a rotating drive mechanism 10.

[0022] The above-mentioned rotary drive mechanism 10 is composed of a rotary motor and a reduction box structure, and the rotary motor, the reduction box structure and the rotary screw structure 9 are sequentially connected in transmission. Figure 2 As shown: a mounting base 11 is fixedly arranged at the bottom of the rotating drive mechanism 10, that is, the rotating motor and the reduction box structure are installed on the mounting base 11, and a rotating support seat 12 is also installed on the mounting base 11. One end of the rotating screw structure 9 rotates with the rotating support seat 12. The mounting base 11 is used to support the steel body dismantling mechanism as a whole. Other movable supporting components are preferably arranged close to it for easy holding and other operations.

[0023] The clamp body structure 6 is provided with a clamp base 61, a fixed clamp body 62 is provided at one end of the clamp base 61, and a threaded hole platform 63 is provided at the other end of the clamp base 61. A threaded hole is provided in the middle of the threaded hole platform 63, and a screw structure 64 is installed in the threaded hole. One end of the screw structure 64 is connected to a clamping drive mechanism 65, and the other end of the screw structure 64 is connected to a movable clamp body 66. The movable clamp body 66 is slidably installed on the clamp base 61, and the movable clamp body 66 is arranged opposite to the fixed clamp body 62.

[0024] The above-mentioned clamping drive mechanism 65 is composed of a motor and a transmission gear box, which are connected in sequence. The motor, transmission gear box and screw structure 64 can also be replaced by an electric push rod to achieve the same clamping function, and jaw plates are installed on the opposite surfaces of the movable clamp body 66 and the fixed clamp body 62.

[0025] The utility model is implemented as follows: the demolition construction workers are sent to the steel bar position by a crane and a cage, and the installation base frame 11 is held for operation, or the steel body demolition mechanism is sent to the steel bar position by an automatic lifting drive mechanism, so that the steel bar to be demolished is located in the clamping opening between the movable clamp body 66 and the fixed clamp body 62 in the clamping body structure 6, and the rotating screw structure 9 is driven by the rotary drive mechanism 10 to rotate forward, so that the left shaft structure 7 and the right shaft structure 8 are simultaneously opened outward, so that the left support frame A2 and the left support frame B3, and the right support frame A4 and the right support frame B5 are contracted, that is, the distance between the clamping body structure 6 and the fulcrum base 1 is contracted, and at this time, the rubber pad of the fulcrum base 1 is pressed tightly against the outer wall of the building, so the steel bar to be demolished is clamped when the clamping body structure 6 is clamped, and then the rotating drive mechanism is used to drive the rotating screw structure 9 ... and then the left support frame A2 and the left support frame B3, and the right support frame A4 and the right support frame B5 are contracted, that is, the distance between the clamping body structure 6 and the fulcrum base 1 is contract The structure 10 rotates the screw structure 9 to rotate in the direction of rotation, so that the left rotating shaft structure 7 and the right rotating shaft structure 8 are simultaneously contracted inwardly, so that the left support frame A2 and the left support frame B3, the right support frame A4 and the right support frame B5 are opened, that is, the distance between the fulcrum base 1 of the clamping body structure 6 is pulled apart, and the fulcrum base 1 is pressed tightly against the outer wall of the building as a fixed fulcrum to avoid the cage or the lifting mechanism from being stressed, thereby avoiding safety hazards, and the operation of removing the steel rod is more convenient and quick. During the process of the clamping body structure 6 opening outward under the action of the left support frame A2 and the left support frame B3, the right support frame A4 and the right support frame B5, the steel rod is pulled outward, and this process is repeated until the steel rod is completely pulled out of the building, without the need for manual knocking operation, which can improve the efficiency of steel rod removal, and the removal cost is lower, and it is not easy to damage other parts of the building.

[0026] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention shall be defined by the appended claims.

Claims

1. A building steel bar removal mechanism, characterized in that: The invention comprises a fulcrum base (1), a left support frame A (2), a left support frame B (3), a right support frame A (4), a right support frame B (5) and a clamping body structure (6), wherein one end of the left support frame A (2) and the right support frame A (4) are rotatably mounted on the middle part of the fulcrum base (1), and the other ends of the left support frame A (2) and the right support frame A (4) are respectively mounted with a left rotating shaft structure (7) and a right rotating shaft structure (8), and one end of the left support frame B (3) and the right support frame B (5) are respectively connected to the left support frame A (2) through the left rotating shaft structure (7) and the right rotating shaft structure (8). ) and the right support frame A (4) are rotatably connected, and the other ends of the left support frame B (3) and the right support frame B (5) are rotatably mounted on the side of the clamp body structure (6), and a positive threaded hole and a negative threaded hole are respectively opened in the left rotating shaft structure (7) and the right rotating shaft structure (8), and a rotating screw structure (9) is installed in the positive threaded hole and the negative threaded hole, and the rotating screw structure (9) has a positive screw part and a negative screw part, and the positive threaded hole and the negative threaded hole are respectively matched with the positive screw part and the negative screw part, and the rotating screw structure (9) is also connected to a rotation drive mechanism (10).

2. The building steel bar removal mechanism according to claim 1, characterized in that: A rubber pad is provided on the fulcrum base (1), and the fulcrum base (1) is pressed tightly against the outer wall of the building through the rubber pad.

3. The building steel bar removal mechanism according to claim 1 or 2, characterized in that: The rotary drive mechanism (10) is composed of a rotary motor and a reduction box structure, and the rotary motor, reduction box structure and rotary screw structure (9) are sequentially transmission-connected.

4. The building steel bar removal mechanism according to claim 3, characterized in that: It also includes a mounting base (11), the rotating motor and the reduction box structure are mounted on the mounting base (11), a rotating support seat (12) is also mounted on the mounting base (11), and one end of the rotating screw structure (9) is rotatably matched with the rotating support seat (12).

5. The building steel bar removal mechanism according to claim 1, 2 or 4, characterized in that: The clamp body structure (6) is provided with a clamp base (61), a fixed clamp body (62) is provided at one end of the clamp base (61), and a threaded hole platform (63) is provided at the other end of the clamp base (61). A threaded hole is provided in the middle of the threaded hole platform (63), and a screw structure (64) is installed in the threaded hole. One end of the screw structure (64) is connected to a clamping drive mechanism (65), and the other end of the screw structure (64) is connected to a movable clamp body (66). The movable clamp body (66) is slidably installed on the clamp base (61), and the movable clamp body (66) is arranged opposite to the fixed clamp body (62).

6. The building steel bar removal mechanism according to claim 5, characterized in that: The clamping drive mechanism (65) is composed of a motor and a transmission gear box, and the motor, the transmission gear box and the screw structure (64) are sequentially connected in transmission, and jaw plates are installed on the opposite surfaces of the movable clamp body (66) and the fixed clamp body (62).

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