Counter-force base plate for pulling out H-shaped steel of reinforced concrete top beam

Abstract

The utility model discloses a counter-force base plate for pulling out H-shaped steel of a reinforced concrete top beam, and relates to the technical field of counter-force base plates. The steel supporting plate comprises a steel supporting plate body, and the bottom end of the steel supporting plate body is connected with two reinforcing plates. According to the H-shaped steel pulling-out device, the corresponding driving sources conveniently drive the corresponding limiting clamping plates to be close to each other, so that the top end of H-shaped steel is clamped and fixed, the H-shaped steel is conveniently pulled out subsequently, the contact friction force of the H-shaped steel and the limiting clamping plates is improved through the silica gel pads, the H-shaped steel pulling-out efficiency is improved, bolts do not need to be repeatedly disassembled and assembled, and the labor intensity is reduced. And when the limiting clamping plates move, the fixing plates can be attached to the connecting rods and the reinforcing plates in a sliding mode, so that the smoothness of the limiting clamping plates is improved, meanwhile, part of stress of a driving source is shared, and counterforce can be provided through the counterforce base plate body, the first reinforcing frame and the second reinforcing frame; and the first reinforcing frame and the second reinforcing frame are used for reinforcing and supporting the counter-force base plate body, so that the stability of the counter-force is ensured.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of counterforce backing plate, and particularly relates to a reinforced concrete corbel beam H-shaped steel pulling-out counterforce backing plate. BACKGROUND

[0002] With the increase of underground space engineering construction in China, underground engineering represented by the subway will develop faster and faster. At present, H-shaped steel can be recycled after the completion of the current foundation pit construction, which only needs to be pulled out, and the cost is much lower than that of underground continuous wall. At present, counterforce backing plates are needed in the process of recycling H-shaped steel. If the H-shaped steel is inserted into the enclosure structure too deeply, the exposed H-shaped steel area is small, or the friction between the H-shaped steel and the ground is too large, the H-shaped steel will not be pulled out, and economic losses will be caused.

[0003] Among them, the Chinese patent CN202022368846.4 discloses a SMW method pile H-shaped steel pulling auxiliary counterforce device, which comprises an H-shaped steel section, two counterforce backing plates are vertically fixed on the web of the steel section, a rib plate reinforcing structure arranged in a lattice shape is welded on the upper surface of the counterforce backing plate, and a shoulder angle reinforcing rib plate is arranged on the lower surface of the counterforce backing plate; an outer connecting clamping plate strip is arranged on the outer side of the lower part of the flange plate of the steel section, and two inner connecting clamping plate strips are arranged on the inner side of the lower part of the flange plate of the steel section, which are arranged in front of and behind the web of the steel section respectively and are paired with the corresponding outer connecting clamping plate strips; the upper ends of the two inner connecting clamping plate strips are hingedly connected to the flange plate of the steel section and the corresponding outer connecting clamping plate strips through two high-strength bolts; and high-strength bolt connection holes are arranged on the lower parts of the two inner connecting clamping plate strips and the paired outer connecting clamping plate strips.

[0004] At present, when the H-shaped steel is pulled out, the top part of the H-shaped steel exposed outside is generally fixed by clamping, and then the H-shaped steel is pulled out upward. However, the clamped part is generally fixed by a reinforcing bolt, which needs to be repeatedly disassembled and assembled, so that the progress of pulling out the H-shaped steel is slowed down, and the efficiency of pulling out the H-shaped steel is affected.

[0005] At present, no effective solution has been proposed for the problems in the related art. UTILITY MODEL CONTENTS

[0006] In view of the problems in the related art, the utility model provides a reinforced concrete corbel beam H-shaped steel pulling-out counterforce backing plate to overcome the above technical problems existing in the prior art.

[0007] To solve the above technical problems, the utility model is implemented by the following technical scheme:

[0008] The utility model is a reinforced concrete corbel beam H-shaped steel pulling-out counterforce backing plate, which comprises a steel support plate, the bottom end of the steel support plate is connected with two reinforcing plates:

[0009] The surface of each reinforcing plate is connected with two protection boxes, the inner side of four protection boxes is connected with driving sources, two reinforcing plates are provided with two limiting assemblies, the bottom end of two reinforcing plates is connected with two sharp blocks, the steel support plate is provided with a supporting assembly, and the top end of the steel support plate is connected with two lifting rings.

[0010] The surface of each limiting assembly is connected with the power output end of each driving source, so as to drive the corresponding limiting assembly to move in the horizontal direction and clamp and fix the H-shaped steel.

[0011] The surface of the supporting assembly is connected with the surface of the steel support plate, so as to play a counterforce role and pull out the H-shaped steel.

[0012] Further, four limiting assemblies each include a limiting clamp plate and ten connecting rods, four limiting clamp plates are arranged on the power output end of four driving sources, the surface of four limiting clamp plates is connected with a silica gel pad, and the top end and the bottom end of four limiting clamp plates are connected with a fixed plate, wherein twenty connecting rods are arranged on the inner wall of one reinforcing plate, and another twenty connecting rods are arranged on the inner wall of the other reinforcing plate.

[0013] Further, every two limiting clamp plates are symmetrically arranged on the left and right sides of the vertical center line of each reinforcing plate.

[0014] Further, the surface of each of the four fixed plates is in sliding fit with the inner wall of each reinforcing plate.

[0015] Further, the inner side of each fixed plate is in sliding fit with the surface of each of the five connecting rods.

[0016] Further, the two sides of two reinforcing plates are provided with openings, and the power output end of each driving source penetrates through each opening.

[0017] Further, the supporting assembly includes a counterforce pad body, the counterforce pad body is arranged on the inner side of the steel support plate, the top end of the counterforce pad body is connected with a first reinforcing frame, and the bottom end of the counterforce pad body is connected with a second reinforcing frame.

[0018] The utility model has the following beneficial effects:

[0019] The utility model discloses a corresponding drive source is convenient for driving corresponding limit clamping plate to approach to fix the top end of H-shaped steel, and the subsequent H-shaped steel is pulled out conveniently, wherein the friction of H-shaped steel and limit clamping plate contact is improved through silica gel pad, and the efficiency of pulling out H-shaped steel is improved and does not need repeatedly disassembling bolt, and the fixed plate will slide and fit with connecting rod and reinforcing plate when limit clamping plate moves, thereby improving the smoothness of limit clamping plate and also sharing the stress of part of drive source, the counterforce backing plate body, first reinforcing frame and second reinforcing frame help to provide counterforce, and the first reinforcing frame and second reinforcing frame reinforce and support counterforce backing plate body, help to ensure the stability of counterforce, and the pulling out is stable, and the operation space required for pulling out is small, can realize the pulling out of H-shaped steel in narrow space, and the sharp block is convenient for inserting into soil and helps to increase the length of H-shaped steel clamping.

[0020] Of course, it is not necessary for any product embodying the utility model to achieve all the advantages mentioned above. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical scheme of the utility model embodiment, the following will be needed to use the drawing of the embodiment briefly introduced, obviously, the following description in the drawing is only some embodiments of the utility model, for those skilled in the art, under the premise of not paying creative labor, other drawings can also be obtained according to these drawings.

[0022] Figure 1 It is the structure schematic diagram of the utility model;

[0023] Figure 2 It is the structure schematic diagram of the utility model;

[0024] Figure 3 It is the structure schematic diagram of the utility model;

[0025] Figure 4 It is the structure schematic diagram of the utility model Figure 3 of A place enlarged structure schematic diagram;

[0026] Figure 5 It is the plane structure schematic diagram of the utility model front;

[0027] Figure 6 It is the local structure schematic diagram of the utility model.

[0028] In the drawings, the component list represented by each sign is as follows:

[0029] 1, steel support plate; 2, limiting assembly; 21, limiting clamp plate; 22, silica gel pad; 23, fixed plate; 24, connecting rod; 3, reinforcing plate; 4, protective box; 5, driving source; 6, sharp block; 7, support assembly; 71, counterforce pad body; 72, first reinforcing frame; 73, second reinforcing frame; 8, lifting ring. DETAILED DESCRIPTION

[0030] The technical solutions in the utility model embodiments will be clearly and completely described below with reference to the drawings in the utility model embodiments. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0031] In the description of the utility model, it should be understood that the terms "opening", "upper", "lower", "top", "middle", "inner" and the like indicate the orientation or positional relationship, which are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the indicated components or elements must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the utility model.

[0032] Please refer to Figures 1-6 As shown in the figure, the utility model is a reinforced concrete crown beam H-shaped steel pull-out counterforce pad plate, which comprises a steel support plate 1, the bottom end of the steel support plate 1 is connected with two reinforcing plates 3:

[0033] The surface of each reinforcing plate 3 is connected with two protective boxes 4, the inner side of each of the four protective boxes 4 is connected with a driving source 5, two limiting assemblies 2 are arranged on each of the two reinforcing plates 3, the bottom end of each of the two reinforcing plates 3 is connected with two sharp blocks 6, a support assembly 7 is arranged on the steel support plate 1, and the top end of the steel support plate 1 is connected with two lifting rings 8;

[0034] The surface of each limiting assembly 2 is respectively connected with the power output end of each driving source 5 in power, so as to drive the corresponding limiting assembly 2 to move in the opposite direction along the horizontal direction to clamp and fix the H-shaped steel.

[0035] The surface of the support assembly 7 is connected with the surface of the steel support plate 1, so as to play a counterforce role to pull out the H-shaped steel.

[0036] Firstly, the steel support plate 1 and the reinforcing plate 3 are hoisted as a whole above the H-shaped steel through the two lifting rings 8, and the limiting assembly 2 corresponds to the side of the H-shaped steel, then the corresponding driving source 5 is driven to work, so as to drive the corresponding limiting assembly 2 to approach, and then the top surface of the H-shaped steel is clamped and fixed. After the limiting assembly 2 and the top end of the H-shaped steel are clamped and limited, two jacks are arranged below the supporting assembly 7, the jacks jack up the supporting assembly 7 upwards, so as to drive the steel support plate 1 and the reinforcing plate 3 to move upwards as a whole, then the H-shaped steel is clamped by the limiting assembly 2 and pulled out, which is convenient for installation and disassembly and can provide greater counterforce, so as to pull out the H-shaped steel with large friction force, and the pulling is stable, the operation space required for pulling is small, the H-shaped steel in a narrow space can be pulled out, and the sharp block 6 is convenient for inserting into the soil, which helps to increase the length of the clamping of the H-shaped steel.

[0037] The corresponding driving source 5 is convenient for driving the corresponding limiting assembly 2 to approach, so as to clamp and fix the top end of the H-shaped steel, which is convenient for pulling out the H-shaped steel later, the supporting assembly 7 helps to provide counterforce, and the pulling is stable, the operation space required for pulling is small, the H-shaped steel in a narrow space can be pulled out, and the sharp block 6 is convenient for inserting into the soil, which helps to increase the length of the clamping of the H-shaped steel.

[0038] In one embodiment, for the above-mentioned limiting assembly 2, four limiting assemblies 2 each include a limiting clamp plate 21 and ten connecting rods 24, four limiting clamp plates 21 are arranged on the power output ends of four driving sources 5 respectively, the surfaces of four limiting clamp plates 21 are connected with silica gel pads 22, the top end and the bottom end of four limiting clamp plates 21 are connected with fixed plates 23, twenty connecting rods 24 are arranged on the inner wall of one reinforcing plate 3, and another twenty connecting rods 24 are arranged on the inner wall of another reinforcing plate 3.

[0039] First, the steel support plate 1 and the reinforcing plate 3 are hoisted as a whole above the H-shaped steel through two lifting rings 8, and the limiting clamping plates 21 correspond to the side of the H-shaped steel, then the corresponding drive source 5 is driven to operate, thereby driving the corresponding limiting clamping plate 21 to approach, and then the top surface of the H-shaped steel is clamped and fixed, wherein the silicone pad 22 improves the friction between the limiting clamping plate 21 and the H-shaped steel, and after the limiting clamping plate 21 and the top end of the H-shaped steel are clamped and limited, two jacks are arranged below the support assembly 7, the jacks lift the support assembly 7 upwards, thereby lifting the steel support plate 1 and the reinforcing plate 3 as a whole, then the H-shaped steel is clamped by the limiting clamping plate 21 and pulled out, which is convenient for installation and disassembly and can also provide greater counterforce, thereby pulling out the H-shaped steel with greater friction, and the lifting is stable, the required operation space is small, the H-shaped steel in a narrow space can be lifted, and the sharp block 6 is convenient for inserting into the soil, which helps to increase the length of the clamping of the H-shaped steel.

[0040] The corresponding drive source 5 is convenient for driving the corresponding limiting clamping plate 21 to approach, thereby clamping and fixing the top end of the H-shaped steel, which is convenient for subsequent pulling out of the H-shaped steel, wherein the silicone pad 22 improves the friction between the H-shaped steel and the limiting clamping plate 21, improves the efficiency of pulling out the H-shaped steel, and does not need to repeatedly disassemble and assemble the bolts, and when the limiting clamping plate 21 moves, the fixed plate 23 will slide and fit with the connecting rod 24 and the reinforcing plate 3, thereby improving the smoothness of the limiting clamping plate 21, and also sharing part of the stress of the drive source 5, the support assembly 7 helps to provide counterforce, and the lifting is stable, the required operation space is small, the H-shaped steel in a narrow space can be lifted, and the sharp block 6 is convenient for inserting into the soil, which helps to increase the length of the clamping of the H-shaped steel.

[0041] In one embodiment, for the above-mentioned limiting clamping plate 21, every two limiting clamping plates 21 are respectively arranged symmetrically on the left and right sides of the vertical center line of each reinforcing plate 3, thereby facilitating clamping and fixing of the H-shaped steel by the limiting clamping plate 21.

[0042] In one embodiment, for the above-mentioned fixed plate 23, the surface of every four fixed plates 23 respectively slides and fits with the inner wall of each reinforcing plate 3, thereby supporting the fixed plate 23, and then supporting the limiting clamping plate 21.

[0043] In one embodiment, for the above-mentioned fixed plate 23, the inner side of each fixed plate 23 respectively slides and fits with the surface of every five connecting rods 24, thereby avoiding the shaking of the fixed plate 23, thereby improving the stability of the movement of the limiting clamping plate 21 and the fixed plate 23.

[0044] In one embodiment, for the above-mentioned reinforcing plate 3, openings are formed on both sides of the two reinforcing plates 3, and the power output ends of each driving source 5 respectively penetrate each opening, thereby facilitating horizontal translational movement of the limiting clamp plate 21 driven by the driving source 5.

[0045] In one embodiment, for the above-mentioned support assembly 7, the support assembly 7 comprises a counterforce pad body 71 arranged on the inner side of the steel support plate 1, the top end of the counterforce pad body 71 is connected with a first reinforcing frame 72, and the bottom end of the counterforce pad body 71 is connected with a second reinforcing frame 73, thereby facilitating the provision of a counterforce to stably pull out the H-shaped steel.

[0046] In summary, by means of the above technical scheme of the utility model, first, the steel support plate 1 and the reinforcing plate 3 are hoisted as a whole above the H-shaped steel through the two lifting rings 8, and the limiting clamp plate 21 corresponds to the side of the H-shaped steel, then the corresponding driving source 5 is driven to operate, thereby driving the corresponding limiting clamp plate 21 to approach, and then the top end surface of the H-shaped steel is clamped and fixed, wherein the silicone pad 22 improves the friction between the limiting clamp plate 21 and the H-shaped steel, after the limiting clamp plate 21 and the top end of the H-shaped steel are clamped and limited, two jacks are arranged below the counterforce pad body 71, the jacks lift the counterforce pad body 71 upwards, thereby driving the steel support plate 1 and the reinforcing plate 3 to move upwards as a whole, then the H-shaped steel is pulled out through the limiting clamp plate 21, the installation and disassembly are both convenient, a greater counterforce can be provided, thereby pulling out the H-shaped steel with greater friction, and the pulling is stable, the required operation space is small, the H-shaped steel in a narrow space can be pulled out, and the sharp block 6 is convenient to insert into the soil, which helps to increase the length of the clamping of the H-shaped steel.

[0047] Through the above technical scheme, the corresponding driving source 5 facilitates the corresponding limiting clamp plate 21 to approach, thereby clamping and fixing the top end of the H-shaped steel, which facilitates subsequent pulling out of the H-shaped steel, wherein the silicone pad 22 improves the friction between the H-shaped steel and the limiting clamp plate 21, improves the efficiency of pulling out the H-shaped steel, and does not need to repeatedly disassemble and assemble the bolts, and when the limiting clamp plate 21 moves, the fixed plate 23 will slide and fit with the connecting rod 24 and the reinforcing plate 3, thereby improving the smoothness of the limiting clamp plate 21 and also sharing part of the stress of the driving source 5, the counterforce pad body 71, the first reinforcing frame 72 and the second reinforcing frame 73 help to provide a counterforce, the first reinforcing frame 72 and the second reinforcing frame 73 reinforce and support the counterforce pad body 71, which helps to ensure the stability of the counterforce, and the pulling is stable, the required operation space is small, the H-shaped steel in a narrow space can be pulled out, and the sharp block 6 is convenient to insert into the soil, which helps to increase the length of the clamping of the H-shaped steel.

[0048] In the description of the application, references to "one embodiment", "an example", "certain examples" etc. mean that a particular feature, structure, material or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. The appearances of the phrases "in one embodiment", "an example" or "certain examples" in various places in the specification are not necessarily referring to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics can be combined in any suitable manner in one or more embodiments or examples.

[0049] The preferred embodiments of the application disclosed above are only used to help explain the application. The preferred embodiments do not describe all of the details of the application, nor limit the application to the specific embodiments described. Obviously, many modifications and variations of the application can be made in light of the teachings above. The embodiments are chosen and described in order to best explain the principles of the application and its practical application, thus enabling others skilled in the art to best utilize the application. The application is defined solely by the claims appended hereto and equivalents thereof, regardless and notwithstanding any limitations introduced by the description.

Claims

1. A reinforced concrete corbel H-shaped steel pull-out counterforce backing plate, comprising a steel support plate (1), the bottom end of the steel support plate (1) is connected with two reinforcing plates (3), characterized in that: the surface of each reinforcing plate (3) is connected with two protective boxes (4), the inner side of four protective boxes (4) is connected with driving sources (5), two reinforcing plates (3) are provided with two limiting assemblies (2), the bottom end of two reinforcing plates (3) is connected with two sharp blocks (6), the steel support plate (1) is provided with a supporting assembly (7), and the top end of the steel support plate (1) is connected with two lifting rings (8). The surface of each limiting assembly (2) is connected with the power output end of each driving source (5) in power connection, so as to drive the corresponding limiting assembly (2) to make opposite movement in the horizontal direction to clamp and fix the H-shaped steel. The surface of the supporting assembly (7) is connected with the surface of the steel support plate (1), so as to play a counterforce role to pull out the H-shaped steel. Four limiting assemblies (2) comprise limiting clamping plates (21) and ten connecting rods (24), four limiting clamping plates (21) are arranged on the power output ends of four driving sources (5), the surface of each limiting clamping plate (21) is connected with a silica gel pad (22), and the top end and the bottom end of each limiting clamping plate (21) are connected with a fixed plate (23), wherein twenty connecting rods (24) are arranged on the inner wall of one reinforcing plate (3), and another twenty connecting rods (24) are arranged on the inner wall of the other reinforcing plate (3).

2. The reinforced concrete corbel H-beam pull-out counterforce backing plate according to claim 1, characterized in that, Every two limiting clamping plates (21) are symmetrically arranged on the left and right sides of the vertical center line of each reinforcing plate (3).

3. A reinforced concrete corbel H-steel pull-out counterforce pad according to claim 2, characterized in that, The surface of every four fixed plates (23) is in sliding fit with the inner wall of each reinforcing plate (3).

4. The reinforced concrete corbel H-steel pull-out counterforce pad according to claim 2, characterized in that, The inner side of each fixed plate (23) is in sliding fit with the surface of every five connecting rods (24).

5. The reinforced concrete corbel H-steel pull-out counterforce pad according to claim 2, characterized in that, The two sides of two reinforcing plates (3) are provided with openings, and the power output end of each driving source (5) penetrates through each opening.

6. The reinforced concrete corbel H-steel pull-out counterforce pad according to claim 1, characterized in that, The supporting assembly (7) comprises a counterforce backing plate body (71), the counterforce backing plate body (71) is arranged on the inner side of the steel support plate (1), the top end of the counterforce backing plate body (71) is connected with a first reinforcing frame (72), and the bottom end of the counterforce backing plate body (71) is connected with a second reinforcing frame (73).

7. The reinforced concrete corbel H-steel pull-out counterforce pad according to claim 1, characterized in that, ​

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