A channel steel positioning frame for foundation short column reinforcement cage

Abstract

The application provides a channel steel positioning frame for a foundation short column steel reinforcement framework, and belongs to the technical field of channel steel positioning frames. The channel steel positioning frame comprises a base frame, each side of the base frame is provided with a plurality of limiting units which are uniformly distributed along the side, and the limiting unit comprises a mounting seat, a positioning head, an elastic structure, a sliding piece and an opening piece. A unified control assembly is slidingly installed on the base frame. The channel steel positioning frame for the foundation short column steel reinforcement framework can stably and accurately limit and fix the vertical reinforcement, facilitates the quick taking and placing of the vertical reinforcement, does not constrain the binding position of the stirrup, is favorable for improving the binding quality of the steel reinforcement framework, facilitates the construction work of the concrete structure in the mode of hoisting the steel reinforcement framework to the pouring point, and comprehensively improves the efficiency and quality of the concrete construction.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of channel steel positioning frame, in particular to a channel steel positioning frame for foundation short column reinforcement cage. BACKGROUND

[0002] In the process of concrete structure construction, the forming quality of reinforcement cage is directly related to the overall precision and stability of subsequent pouring. The existing construction method is to complete the binding and forming of reinforcement cage on the construction site first, and then move the reinforcement cage to the designated pouring position by hoisting equipment.

[0003] In order to improve the production efficiency and quality of reinforcement cage, positioning frame is usually used to limit and fix vertical steel to ensure uniform spacing of vertical steel and provide temporary support during binding. At present, the common positioning frame is a rectangular frame structure, which is provided with a plurality of clamping holes or clamping slots. During construction, the vertical steel is inserted into the clamping holes or clamping slots for positioning, and then the stirrup is bound. After the steel and stirrup are formed, the whole is hoisted, the positioning frame is automatically separated from the stirrup during hoisting, and then it can quickly enter the next binding and production of reinforcement cage. This method can effectively improve the quality and efficiency of reinforcement cage binding, and is beneficial to the improvement of construction efficiency of concrete structure. However, there are still obvious deficiencies in actual engineering: first, the arrangement position of the positioning frame is limited, and it can only be installed at the top and / or bottom of the reinforcement cage. The upper part of the top positioning frame and the lower part of the bottom positioning frame cannot be bound with stirrup, otherwise it will hinder the separation of the positioning frame and the reinforcement cage. This arrangement method restricts the further improvement of the forming quality of reinforcement cage to some extent.

[0004] Secondly, during hoisting, the reinforcement cage loses the limitation and support of the positioning frame, and is prone to deformation, which directly affects the precision and quality of subsequent concrete pouring, especially in the foundation short column reinforcement cage which bears important vertical and horizontal load transmission task between building foundation and upper structure.

[0005] In addition, the clamping holes and clamping slots of the existing positioning frame are difficult to balance installation convenience and positioning stability in size design. If interference fit is used, it is difficult to conveniently insert and remove the vertical steel. If gap fit is used, it is difficult to achieve stable limiting, which ultimately affects the overall forming quality of the reinforcement cage.

[0006] In view of the foregoing problems, the prior art has attempted to use a buckle type or detachable limiting piece, such as a U-shaped limiting piece cooperating with a fastening nut to fix the vertical rib, but such a scheme needs to be operated one by one during installation and disassembly, which is cumbersome and seriously reduces the efficiency of on-site production. In addition, some technical solutions attempt to hoist the positioning frame together with the steel reinforcement framework to the pouring point to reduce the deformation of the steel reinforcement framework during hoisting, but since the pouring point is usually located in the foundation pit, the space is small and the light is dim, and the existing positioning frame is difficult to remove in this environment, which increases the complexity of the overall construction, affects the overall construction efficiency, and reduces the overall construction economy. Therefore, the existing positioning frame has problems in structure and application mode that need to be improved. SUMMARY

[0007] The application provides a channel steel positioning frame for a foundation short column steel reinforcement framework, which comprises a square base frame, each side of the base frame is provided with a plurality of limiting units uniformly distributed along the side, the limiting unit comprises: a mounting seat, which is detachably fixedly installed on the base frame; a positioning head symmetrically hinged to the mounting seat, the opposite side of the positioning head is provided with an arc-shaped clamping surface; an elastic structure provided between the symmetric positioning heads, used to provide a reverse restraining force smaller than the clamping fixing force during clamping and fixing the vertical rib by the positioning head, so that the positioning head is in a ready-to-clamp state when not clamped; a sliding member, which is slidingly installed on the mounting seat and has a plurality of limiting heads symmetrically arranged thereon; the limiting head comprises: a horizontal limiting part for controlling the relative rotation of the symmetric positioning heads; a vertical limiting part for limiting the vertical degree of freedom of the positioning head and providing vertical support; an opening member installed on the sliding member and used to control the reverse rotation of the positioning head to open after the limiting head is released from the limiting, so as to release the clamping and fixing of the vertical rib and make the positioning head completely staggered with the hoop in the vertical direction; a unified control assembly slidingly installed on the base frame, the unified control assembly comprises a sliding frame and a plurality of associated heads, the associated heads cooperate with the sliding member to limit the connection of the plurality of sliding members and the sliding frame, and the sliding members and the sliding frame move synchronously with the sliding frame.

[0008] In a possible implementation, a plurality of mounting points are arranged on the base frame, the mounting points are arranged in a square array and at least two columns in the longitudinal direction, and the limiting units are mounted on any one of the mounting points in the corresponding column.

[0009] In a possible implementation, a plurality of limiting columns are symmetrically installed on the sliding member, the associated heads are fixedly installed on the sliding frame and form an open limiting area above the sliding frame, and the limiting columns are put into the limiting area from top to bottom, so that the sliding member and the sliding frame are limitedly connected together.

[0010] In a possible implementation, the horizontal limiting part is a cylindrical structure and is rotatably installed on the sliding piece, the side opposite to the symmetric positioning head is an inclined limiting surface, the inclined limiting surface is in abutting contact with the horizontal limiting part, the vertical limiting part is a limiting ring and is fixedly sleeved on the horizontal limiting part, and the inclined limiting surface is provided with a limiting groove matched with the vertical limiting part.

[0011] In a possible implementation, the base frame is provided with a plurality of limiting holes, and the mounting seat is fixedly installed with positioning columns corresponding to the limiting holes, the positioning columns are inserted into the corresponding limiting holes to reinforce the limiting of the mounting seat.

[0012] In a possible implementation, the opening piece includes a limiting frame and a limiting piece, the limiting piece is respectively installed on the positioning head and the sliding piece, and both are located in the limiting frame and constrain the freedom of the limiting frame in the vertical direction.

[0013] In a possible implementation, the elastic structure and the symmetric positioning head are in abutting contact, and the elastic structure is fixedly installed on the mounting seat.

[0014] The above one or more technical solutions in the embodiments of the present application have at least one of the following technical effects: according to the channel steel positioning frame for the foundation short column reinforcement cage provided by the embodiments of the present application, the positioning head is clamped and fixed to the vertical reinforcement in the mode of first preparation and then fastening, which is convenient for quick placement of the vertical reinforcement, can stably and accurately limit and clamp the vertical reinforcement, and in the process of separating the positioning frame from the reinforcement cage after the reinforcement cage is formed, the limiting head and the opening piece cooperate to control the clamping and fixing and the release of the clamping and fixing of the positioning head, the positioning head is completely staggered with the stirrup in the longitudinal direction after the release of the clamping and fixing, which is convenient for taking out the reinforcement cage and the position of the stirrup binding is not restricted by the taking out process of the reinforcement cage, which is beneficial to further improving the quality of the reinforcement cage binding, is convenient for the construction work of the concrete structure in the mode of hoisting the positioning frame together with the reinforcement cage to the pouring point, effectively reduces the deformation of the reinforcement cage in the hoisting process and reduces the pouring quality, and in the process of putting the reinforcement cage into the foundation pit, the clamping and fixing of the positioning head to the vertical reinforcement is quickly and conveniently released at the foundation pit opening, and after the reinforcement cage is placed, the positioning frame is directly hoisted to the reinforcement cage manufacturing point for manufacturing the reinforcement cage, thereby comprehensively improving the efficiency and quality of the concrete construction, and the positioning head can stably and accurately limit and fix the vertical reinforcement under the limiting of the horizontal limiting part and the vertical limiting part. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is the overall structure schematic diagram of the channel steel positioning frame for the foundation short column reinforcement cage provided by the embodiments of the present application.

[0016] Figure 2It is a kind of local structure schematic diagram of channel steel positioning frame for foundation short column steel reinforcement framework provided by the embodiment of the application.

[0017] Figure 3 It is a kind of structure schematic diagram of positioning head and limiting head of channel steel positioning frame for foundation short column steel reinforcement framework provided by the embodiment of the application.

[0018] Figure 4 It is a kind of schematic diagram of positioning head clamping process and unfolding process of channel steel positioning frame for foundation short column steel reinforcement framework provided by the embodiment of the application.

[0019] Figure 5 It is a kind of schematic diagram of mounting point and associated head of channel steel positioning frame for foundation short column steel reinforcement framework provided by the embodiment of the application.

[0020] In the figure: 1, base frame; 2, mounting seat; 3, positioning head; 4, arc clamping surface; 5, elastic structure; 6, sliding piece; 7, limiting head; 71, horizontal limiting part; 72, vertical limiting part; 8, opening piece; 81, limiting frame; 82, limiting piece; 9, unified control assembly; 91, sliding frame; 92, associated head; 10, limiting column; 11, limiting groove; 12, mounting point; 13, limiting hole; 14, positioning column; 15, vertical bar; 16, stirrup. DETAILED DESCRIPTION

[0021] In order to make the above-mentioned objectives, features and advantages of the present application more apparent and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the following description, a large number of specific details are set forth in order to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described below, and those skilled in the art can make similar improvements without departing from the spirit of the present application, so the present application is not limited to the specific embodiments disclosed below.

[0022] Please refer to Figure 1 A kind of channel steel positioning frame for foundation short column steel reinforcement framework, including base frame 1, such as Figure 1As shown, the base frame 1 is a rectangular frame body composed of four edge beams connected end to end, and each edge beam has a plurality of limiting units evenly distributed along the edge. The limiting units correspond to the vertical bars 15 on the corresponding side and are used to limit and fix the vertical bars 15 to ensure the accuracy of the spacing of the vertical bars 15 and provide support during the subsequent binding of the stirrups 16, effectively improving the quality of the reinforcement cage forming. Each edge beam is also provided with a unified control assembly 9 that uniformly controls the limiting units to limit and fix or uniformly release the limiting of the vertical bars 15. During disassembly, the unified control assembly 9 uniformly controls the limiting units on the corresponding edge beam to quickly release the limiting of the vertical bars 15 and make the limiting units completely staggered with the stirrups 16 in the longitudinal and lateral directions and located outside the stirrups 16. At this time, without other disassembly actions, the reinforcement cage can be moved up to complete the separation of the reinforcement cage and the positioning frame, which is convenient for binding the reinforcement with the positioning frame fixed in place and separating the positioning frame from the reinforcement cage after the reinforcement cage is formed to meet the regular application of the positioning frame, and the binding of the stirrups is not limited, which is beneficial to further improve the binding quality of the reinforcement cage and can directly move the reinforcement cage down to be placed in the foundation pit to efficiently and conveniently realize the positioning frame with the reinforcement cage hoisted to the pouring point and quickly complete the disassembly of the positioning frame and the placement of the reinforcement cage, which can effectively avoid the deformation of the reinforcement cage during hoisting and reduce the pouring quality, providing strong help in improving the pouring quality. For example, a limiting structure (not shown in the figure) is temporarily set at the foundation pit opening to limit the base frame 1. When the positioning frame is hoisted with the reinforcement cage to the upper side of the foundation pit, the positioning frame will move to the limiting structure as the reinforcement cage is lowered. At this time, the lowering of the reinforcement cage is stopped, the limiting of the vertical bars by the limiting units is quickly released, and then the reinforcement cage is lowered to the preset position, and finally the positioning frame is lifted off the reinforcement cage.

[0023] Referring to Figure 1 , Figure 2 , Figure 3 and Figure 4 , the limiting unit includes a mounting seat 2, a positioning head 3, an elastic structure 5, a sliding member 6, a limiting head 7, and an opening member 8. The mounting seat 2 is detachably fixed on the inner side of the corresponding edge beam. The positioning head 3 is symmetrically hinged on the mounting seat 2, and the opposite sides of the symmetric positioning head 3 are provided with arc clamping surfaces 4 (as shown in Figure 4 ). The elastic structure 5 is located between the symmetric positioning heads 3. The opening member 8 and the limiting head 7 are symmetrically arranged and correspond to the positioning head 3. Combined with Figure 3 and Figure 4As shown, the symmetrical limiting heads 7 are respectively located on the opposite side of the corresponding positioning heads 3 and are installed on the sliding member 6, the opening member 8 is connected between the positioning heads 3 and the sliding member 6, in the initial state, the symmetrical positioning heads 3 are in the ready clamping state, at this time, the limiting heads 7 limit the positioning heads 3 from the opposite side of the positioning heads 3, the elastic structure 5 located between the symmetrical positioning heads 3 provides the force for inhibiting the positioning heads 3 from rotating to the middle and acts on the positioning heads 3, so that the positioning heads 3 are in the ready clamping state, at this time, the vertical ribs 15 can be smoothly inserted between the symmetrical positioning heads 3 and located between the corresponding arc-shaped clamping surfaces 4, when all the vertical ribs 15 are inserted between the symmetrical positioning heads 3 in the corresponding limiting units, the unified control assembly 9 uniformly controls the sliding member 6 to slide inward, the symmetrical positioning heads 3 are synchronously rotated inward under the limiting of the corresponding limiting heads 7, and the corresponding vertical ribs 15 are clamped and fixed in the middle, and in the process of disassembly, the unified control assembly 9 uniformly controls the sliding member 6 to slide outward, gradually releases the limiting of the limiting heads 7 on the positioning heads 3, then drives the opening member 8 to open the symmetrical positioning heads 3, until it is completely separated from the vertical ribs 15 and is staggered with the hoop rib 16 in the vertical direction (as shown in the lower right view of Figure 4 , the steel reinforcement framework can move in the vertical direction, wherein the elastic structure 5 and the symmetrical positioning heads 3 are in abutting contact, and the elastic joint 5 is fixedly installed on the mounting seat 2, as shown in Figure 4 , the elastic structure 5 is a mounting block with symmetrical elastic contact heads, the mounting block is fixedly installed on the mounting seat 2, when the symmetrical positioning heads 3 are in the ready clamping state, the corresponding elastic contact heads are respectively abutted on the positioning heads 3, when the positioning heads 3 are relatively reversely rotated and opened, the elastic structure 5 is no longer compressed, and the elastic contact head can be a rubber head.

[0024] Referring to Figure 3 and Figure 4 , the opening member 8 includes a limiting frame 81 with a waist hole structure and a limiting member 82 for limiting the limiting frame 81, as shown in Figure 4 , the limiting member 82 is respectively installed on the positioning head 3 and the sliding member 6 and both are located in the limiting frame 81 and constrain the vertical degree of freedom of the limiting frame 81, in the process of opening the symmetrical positioning heads 3 by the opening member 8, with the sliding member 6 moving outward, the limiting frame 81 pulls the positioning head 3 to rotate in the opposite direction under the limiting of the limiting member 82 on the sliding member 6, until it is completely staggered with the hoop rib 16 in the vertical direction (as shown in the lower right view of Figure 4 , at this time, the steel reinforcement framework can be separated from the positioning frame by moving upward or moved downward to be placed in the foundation pit, and in the process of the sliding member 6 sliding inward, the limiting frame 81 gradually enters the relaxed state with the sliding of the sliding member 6, then the limiting head 7 abuts on the corresponding positioning head 3 and relatively rotates the positioning head 3.

[0025] Referring to Figure 3The limiting head 7 comprises a horizontal limiting part 71 and a vertical limiting part 72, wherein the horizontal limiting part 71 is used for controlling the horizontal rotation of the positioning head 3, and the vertical limiting part 72 is used for limiting the vertical freedom degree of the positioning head 3 and providing vertical support, wherein the horizontal limiting part 71 is in a cylindrical structure and is rotatably installed on the sliding piece 6, which can effectively reduce the friction during the limiting process, and the side opposite to the symmetric positioning head 3 is an inclined limiting surface, which is in abutting contact with the horizontal limiting part 71, and the vertical limiting part 72 is a limiting ring and is fixedly sleeved on the middle part of the horizontal limiting part 71 and is coaxially distributed with the horizontal limiting part 71, the inclined limiting surface is provided with a limiting groove 11 matched with the vertical limiting part 72, and in the process that the sliding piece 6 slides inward, the horizontal limiting part 71 is matched with the inclined limiting surface to make the positioning head 3 rotate inward synchronously, and at the same time, the vertical limiting part 72 always moves along the limiting groove 11 to limit the positioning head 3 in the vertical direction, which ensures the accuracy of the position of the positioning head 3 and provides support for the positioning head 3 in the vertical direction, and ensures the stability of the clamping state of the positioning head 3.

[0026] Referring to Figure 2 , Figure 3 and Figure 5 , the unified control assembly 9 comprises a sliding frame 91 and a plurality of associated heads 92, the associated heads 92 are matched with the sliding pieces 6, so that the plurality of sliding pieces 6 are limitedly connected together with the sliding frame 91 and move with the sliding frame 91, the sliding frame 91 is slidably installed above the boundary beam in the inward and outward directions, the associated heads 92 are limiting rods and are fixedly installed on the sliding frame 91 and form a limiting area with the sliding frame 91, the sliding pieces 6 are symmetrically installed with limiting columns 10, the limiting columns 10 can be put into the limiting area from top to bottom, so that the sliding pieces 6 slide with the sliding frame 91 in the inward and outward directions, and the disassembly and assembly of the limiting unit are facilitated, wherein the sliding frame 91 can be driven through a screw structure, and the function of screw feeding and real-time locking of the screw structure is used to control the movement of the sliding frame 91 and lock it in the current position in real time.

[0027] Referring to Figure 2 and Figure 5 , a plurality of installation points 12 are arranged on the boundary beam, the installation points 12 are distributed in a matrix shape, and there are at least two columns in the longitudinal direction, in the corresponding side direction, adjacent installation points 12 are an interval unit, the limiting unit is installed according to the interval of the vertical ribs 15, and can meet the positioning requirements of the reference multiple interval vertical ribs 15 in a certain range, and the vertically distributed installation points 12 provide more than one installation option for the limiting unit, so that the inward limiting units are distributed staggered, thereby effectively avoiding the situation that the limiting units are distributed in parallel and interfere with each other due to the too small interval of the vertical ribs 15.

[0028] Referring to Figure 3 and Figure 5The limiting hole 13 is symmetrically arranged on the side beam, the positioning column 14 corresponding to the limiting hole 13 is fixedly arranged on the mounting base 2, the positioning column 14 is inserted into the limiting hole 13 to limit the mounting base 2, and the stability of the fixed state of the mounting base 2 is improved.

[0029] In the embodiments of the present application, unless specifically defined and limited otherwise, the first feature is "on" or "under" the second feature, which can be direct contact or indirect contact through an intermediate medium. Moreover, the first feature can be directly above or obliquely above the second feature, or only means that the first feature is higher than the second feature in horizontal height. The first feature can be directly below or obliquely below the second feature, or only means that the first feature is lower than the second feature in horizontal height.

[0030] In the description of the present application, it should also be noted that, unless specifically defined and limited otherwise, the terms "arranged", "connected", "mounted", and "connected" should be understood broadly, for example, can be fixedly connected, or detachably connected, or integrally connected, or slidingly connected; can be mechanically connected, or electrically connected; can be directly connected, or indirectly connected through an intermediate medium, or can be connected inside two elements. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0031] The embodiments of the specific implementation are the preferred embodiments of the present application, and do not limit the protection scope of the present application, so that: any equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A channel steel positioning frame for a foundation short column reinforcement cage, comprising a base frame in the shape of a rectangle, characterized in that: The base frame is provided with a plurality of limiting units uniformly distributed along each side of the base frame, and the limiting unit comprises: a mounting seat which is detachably fixedly mounted on the base frame; a positioning head symmetrically hinged to the mounting seat and provided with an arc-shaped clamping surface on the opposite side; an elastic structure provided between the symmetric positioning heads and used for providing a reverse restraining force smaller than the clamping fixing force during clamping and fixing of the vertical rib by the positioning heads, so that the positioning heads are in a ready-to-clamp state when not clamped; a sliding member which is slidingly mounted on the mounting seat and symmetrically provided with the positioning heads thereon; the positioning head comprises: a horizontal limiting portion for controlling relative rotation of the symmetric positioning heads; a vertical limiting portion for limiting the vertical degree of freedom of the positioning head and providing vertical support; an opening member which is mounted on the sliding member and controls reverse rotation of the positioning head to open after the limiting of the positioning head is released, so as to release the clamping and fixing of the vertical rib and make the positioning head completely staggered with the hoop rib in the vertical direction; a unified control assembly is slidingly mounted on the base frame, and the unified control assembly comprises a sliding frame and a plurality of associated heads, the associated heads are matched with the sliding member, so that the plurality of sliding members are limitedly connected with the sliding frame and move synchronously with the sliding frame; the symmetric limiting heads are respectively located on the opposite side of the corresponding positioning head and are mounted on the sliding member, and the opening member is connected between the positioning head and the sliding member; the opening member comprises a limiting frame and a limiting member, the limiting member is respectively mounted on the positioning head and the sliding member, and both are located in the limiting frame and constrain the degree of freedom of the limiting frame in the vertical direction.

2. A channel section positioning frame for a foundation pile cage according to claim 1, characterised in that: A plurality of mounting points are provided on the base frame, the mounting points are distributed in a square matrix array, and there are at least two columns in the longitudinal direction, and the limiting unit is mounted on any one mounting point in the corresponding column.

3. The channel steel positioning frame for the foundation short column reinforcement cage according to claim 1 or 2, characterized in that: A limiting column is symmetrically mounted on the sliding member, the associated head is fixedly mounted on the sliding frame and forms an open limiting area above the sliding frame, and the limiting column is put into the limiting area from top to bottom, so that the sliding member and the sliding frame are limitedly connected together.

4. The channel section positioning frame for foundation column cage according to claim 1, wherein: The horizontal limiting portion is a cylindrical structure and is rotatably mounted on the sliding member, the opposite side of the symmetric positioning head is an inclined limiting surface, the inclined limiting surface is in abutting contact with the horizontal limiting portion, the vertical limiting portion is a limiting ring and is fixedly sleeved on the horizontal limiting portion, and the inclined limiting surface is provided with a limiting groove matched with the vertical limiting portion.

5. A channel section positioning frame for use in the construction of a reinforced concrete foundation post according to claim 1 wherein: A plurality of limiting holes are provided on the base frame, and a positioning column corresponding to the limiting hole is fixedly mounted on the mounting seat, and the positioning column is inserted into the corresponding limiting hole to reinforce the limiting of the mounting seat.

6. A channel section positioning frame for use in the construction of a reinforced concrete foundation post according to claim 1 wherein: The elastic structure and the symmetric positioning head are in abutting contact, and the elastic structure is fixedly mounted on the mounting seat.

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