Hogging moment steel bar protective layer and floor thickness double-control assembly

Abstract

The utility model discloses a hogging moment steel bar protective layer and floor thickness double-control assembly which comprises a support, mounting grooves are symmetrically formed in the two opposite sides of the periphery of the upper portion of the support, and the mounting grooves are used for mounting upper hogging moment steel bars; the reinforcing steel bar limiting clamping pieces are installed on the installation grooves in a sliding mode and used for limiting the upper-layer hogging moment reinforcing steel bars and preventing the upper-layer hogging moment reinforcing steel bars from being disengaged upwards; one end of the reinforcing limiting piece is an upper limiting piece of a connected structure, and the other end of the reinforcing limiting piece is a lower limiting piece of a connected structure; wherein the reinforcing limiting pieces are arranged on any side or multiple sides of the support; and the other end of the reinforcing limiting piece is connected with the lower hogging moment steel bar. The assembly is simple in structure and novel and reasonable in design, prevents displacement of the steel bars, serves as a floor thickness reference, controls the floor thickness and reduces the thickness deviation of a protective layer.

Description

Technical Field

[0001] The utility model relates to a stirrup support, in particular to a component with a negative bending moment steel bar protective layer and a floor slab thickness double control, and belongs to the technical field of auxiliary construction supplies for building engineering. Background Art

[0002] Generally speaking, in the construction of cast-in-place floor slabs in building projects, the slab thickness is an important quality control point of the construction. However, due to inappropriate slump of concrete materials, deviation in formwork installation, or insufficient experience of construction personnel, the qualified rate of slab thickness has not reached a relatively ideal state. In order to improve the qualified rate of structural floor slab thickness, the position of the steel skeleton must be effectively controlled during construction to ensure the effective thickness between the double-layer steel bars of the structural floor slab, so that the steel bars and concrete can be reliably bonded. As a result, the protective layer of the upper negative bending moment steel bars of the floor slab is too thick and the floor slab thickness deviation is a common problem in housing construction projects.

[0003] At present, there are two main reasons for the excessive thickness of the protective layer: First, the upper negative bending moment steel bars move downward during construction due to trampling, laying pump pipes, stacking materials, etc., resulting in an excessively thick protective layer. During construction, the negative bending moment steel bars are supported by stirrup bars, but the stirrup bars are relatively soft and cannot completely prevent the steel bars from moving downward due to trampling, stacking, etc.; second, when pouring concrete for the floor slab, the thickness control mark is generally on the column bars and side molds around the slab, and there is a lack of reference inside the slab, resulting in inaccurate thickness control, and the floor slab is easily poured too thick or too thin. At present, the main reason is that it is too thick, which not only leads to the deviation of the floor slab thickness, but also indirectly causes the deviation of the thickness of the steel bar protective layer to exceed the allowable range of the specification.

[0004] In order to facilitate and speed up construction, many construction sites still use traditional methods to control the thickness of cast-in-place concrete floor slabs, such as pulling wires, using steel stirrups, marking elevation control lines on the side formwork of the floor slab, column reinforcement or column dowel bars, etc. These methods have disadvantages such as large control errors, unclear control errors, and no control in the mid-span. Practice has shown that these reasons have caused deviations or exceeding of the thickness of the floor slab during construction, causing potential safety hazards to the cast-in-place floor slab structure and increasing the construction difficulties and costs for subsequent maintenance.

[0005] At present, double-control pads are also used in construction sites. The double-control pads for floor slab thickness and protective layer thickness made of concrete on the market have the disadvantages of low strength, small size, easy to break when stepped on, easy to fall under lateral force, and cannot realize the functions of protective layer and thickness control.

[0006] After searching, a Chinese patent publication number CN 206457999 U discloses a steel stirrup for construction engineering, comprising a steel stirrup body (1), the bottoms of the four side walls of the steel stirrup body (1) are all provided with concrete filling cavities (2), and the four groups of concrete filling cavities (2) are interconnected, a steel support seat (3) is arranged at the top center of the steel stirrup body (1), a hinge groove (4) is arranged at the top of the steel support seat (3), a cross-shaped steel bar hinge frame (6) is arranged in the inner cavity of the hinge groove (4), and the four groups of brackets of the cross-shaped steel bar hinge frame (6) are all connected to the inner side wall of the steel support seat (3), and a steel bar connection groove (5) is arranged at the top center of the four side walls of the steel support seat (3), and the four groups of steel bar connection grooves (5) are all located at the top of the cross-shaped steel bar hinge frame (6). The above patent has the following deficiencies: the steel bars are only limited, but not effectively fixed. In this case, the steel bars are easily affected by foreign objects. If the operator accidentally touches the stirrup and the steel bars during construction, the steel bars may fall off the stirrup, resulting in the need to re-place and rework, increasing costs, and ultimately leading to large deviations in the thickness of the floor slab and the thickness of the protective layer. In short, it is often very inconvenient.

[0007] Therefore, the key to solving the above technical problems is to develop a component with strong practicality and high working reliability that can control both the negative bending moment reinforcement protective layer and the floor slab thickness. Summary of the invention

[0008] In view of the many defects and shortcomings existing in the above-mentioned background technology, the present invention has made improvements and innovations thereto, and aims to provide a device with simple structure, novel and reasonable design, high control precision and small error. The component is adopted to prevent the displacement of steel bars, overcome the popping out or falling out of the upper negative bending moment steel bars due to the trampling of construction workers, reduce the rework error, and at the same time, as a reference for the thickness of the floor slab, it can also control the thickness of the floor slab and reduce the thickness deviation of the protective layer. At the same time, the reinforcement limiter is used in combination with the present invention, so that the upper row of steel bars can be firmly tied and fixed, and the spacing between steel bars can be effectively controlled, so as to better fix the position of the upper negative bending moment steel bars and prevent the protective layer from being too thick due to the displacement of steel bars due to the compression and deformation of the stirrup bars.

[0009] In order to solve the above problems and achieve the above invention objectives, the utility model is a negative bending moment steel bar protective layer and floor thickness dual control component by adopting the following design structure and the following technical solutions:

[0010] A component for controlling both the protective layer of negative bending steel bars and the thickness of floor slabs, comprising:

[0011] A support (1), wherein mounting grooves (11) are symmetrically provided on opposite sides of the upper part of the support (1), and the mounting grooves (11) are used to install the upper negative bending moment steel bars (4);

[0012] A steel bar limiting clamp (2), the steel bar limiting clamp (2) is slidably mounted on each mounting groove (11) and is used to limit the upper layer of negative bending moment steel bars (4) to prevent the upper layer of negative bending moment steel bars (4) from falling out upwards;

[0013] A reinforcement limiter (3), one end of which is an upper limiter (31) of the connected structure, and the other end of which is a lower limiter (32) of the connected structure; wherein:

[0014] The reinforcement limiter (3) is arranged on any one side or multiple sides of the support (1); one end of the reinforcement limiter (3) is connected to the upper layer negative bending moment steel bars (4), and the other end is connected to the lower layer negative bending moment steel bars (5).

[0015] Preferably, the steel bar limiting clamp (2) comprises:

[0016] A fixed block (21), the fixed block (21) is slidably engaged with one side of the mounting groove (11), and a sliding mounting groove (211) is provided inside the fixed block (21);

[0017] The clamping assembly (22) is detachably mounted in the sliding mounting groove (211).

[0018] Preferably, the middle parts of both sides of the fixing block (21) are provided with a clamping groove (212) adapted to the mounting groove (11);

[0019] The sliding installation groove (211) is obliquely penetrated and opened on the fixed block (21), wherein one end of the sliding installation groove (211) is provided with an internal thread section.

[0020] Preferably, the clamping assembly (22) comprises:

[0021] A clamping column (221), the clamping column (221) is slidably mounted at the other end of the sliding mounting groove (211);

[0022] A locking block (222), the locking block (222) is threadedly connected to the internal thread section of the sliding installation groove (211);

[0023] A telescopic spring (223), one end of which is sleeved on the outside of the clamping column (221), and the other end of which is connected to the locking block (222).

[0024] Preferably, the fixing block (21) is of a square structure as a whole; the sliding installation groove (211) comprises an installation groove section for installing the clamping assembly (22) and a sliding groove section for slidingly installing the clamping column (221), wherein the diameter of the installation groove section is greater than the diameter of the sliding groove section.

[0025] Preferably, a clamping ring (224) for connecting to a telescopic spring (223) is connected to an outer wall at one end of the clamping column (221), and an inclined surface is provided at the other end of the clamping column (221).

[0026] Preferably, the mounting grooves (11) are provided as four grooves arranged in pairs opposite to each other, wherein the groove depth of any two opposite mounting grooves (11) is smaller than the groove depth of another two opposite mounting grooves (11).

[0027] Preferably, the support (1) is a square steel, on which a scale line (12) is engraved, and the scale line (12) extends from the bottom edge of the support (1) in the height direction to the top edge.

[0028] Preferably, the reinforcing limiter 3 is an S-shaped or C-shaped member made of steel as a whole, or a mixture of S-shaped or C-shaped members.

[0029] Preferably, an upper clamping member (311) is further provided on the inner side wall of the upper limit positioning member (31), and the upper clamping member (311) is fixedly arranged near the free end of the upper limit positioning member (31);

[0030] A lower clamping member (321) is also provided on the inner side wall of the lower limiting member (32), and the lower clamping member (321) is fixedly arranged near the free end of the lower limiting member (32).

[0031] The working principle is: before using a component of the negative bending moment steel bar protective layer and floor slab thickness dual control component of the above-mentioned design structure, the completed component needs to be transported to the designated work location by manual or corresponding transport equipment and installed as a spare.

[0032] Before use, the reinforcing limit piece (3) is manufactured. During the manufacturing process, according to actual use requirements, the waste steel bars are cut into straight steel bars of a certain length in batches, that is, the front end and the rear end of the reinforcing limit piece (3) are inserted into the lower end of the reinforcing limit piece (3) through the lower end working body (62) of the reinforcing limit piece tooling (6) by using the lever principle to bend it into a lower limit piece (32), and the lower limit piece (32) of the reinforcing limit piece (3) is bent into a U shape, and then the upper end of the reinforcing limit piece (3) is bent into an upper limit piece (31), and the upper limit piece (31) of the reinforcing limit piece (3) is bent into a U shape for use.

[0033] After the above structure is manufactured, it needs to be installed. When it is installed and used, at first, the operator first lays the lower negative moment transverse steel bars and the lower negative moment longitudinal steel bars of the lower negative moment steel bars (5) on the floor slab according to the construction standard requirements, and then places a reasonable number of the utility model at the designated appropriate position according to the construction requirements. Subsequently, the operator installs the upper negative moment longitudinal steel bars in the installation groove (11) with a high groove depth according to the position of the lower negative moment steel bars (5), and then installs the upper negative moment transverse steel bars in the installation groove (11) with a low groove depth; when the upper negative moment steel bars (4) are in contact with the two steel bar limit clamps (2) arranged oppositely in the corresponding installation groove (11), the upper negative moment steel bars (4) are pressed under their own gravity and inertia. Under the dual pressure of the action and the pressing gravity of the operator, the clamping columns (221) of the two steel bar limiting clamps (2) simultaneously move obliquely downward, thereby driving the telescopic spring (223) to compress downward. When the upper negative bending moment steel bar (4) is slidably clamped in the clamping groove formed by the two steel bar limiting clamps (2), the two clamping columns (221) are quickly reset under the elastic action of the corresponding telescopic spring (223). When resetting, the two relative clamping columns (221) overlap and contact each other closely, thereby clamping the upper negative bending moment steel bar (4) in the clamping groove formed by the two steel bar limiting clamps (2) without popping out or falling off, thereby completing the installation of the upper negative bending moment steel bar (4), ensuring that during the concrete pouring process, the deformation and relative displacement of the steel bar are reduced, thereby improving the pouring quality of the floor slab.

[0034] Then, the operator inserts the lower stopper (32) of the reinforcing stopper (3) with one end bent into the intersection of the longitudinal and transverse reinforcements of the lower negative bending moment reinforcement (5) or the transverse reinforcements of the lower negative bending moment reinforcement (5), and the other end of the reinforcing stopper (3) extends to the intersection of the longitudinal and transverse reinforcements of the upper negative bending moment reinforcement (4) or the longitudinal reinforcement, and inserts the upper limiter (31) of the reinforcing stopper (3) into the intersection of the longitudinal and transverse reinforcements of the upper negative bending moment reinforcement (4) or the longitudinal reinforcement. At this time, the upper and lower reinforcements of the structural floor slab, i.e., the upper negative bending moment reinforcement (4) and the lower negative bending moment reinforcement (5) are fixed by the upper limiter (31) and the lower limiter (32) of the reinforcing stopper (3), so as to reduce the deformation and relative displacement of the reinforcements during the concrete pouring process and improve the pouring quality of the floor slab.

[0035] After installation, it can be used. The operation process during use is: this component will work together with the reinforcement limiter (3) to fix and support the upper negative bending moment steel bars (4) and the lower negative bending moment steel bars (5). After the concrete is poured, this component does not need to be removed and is poured into the floor slab as part of the floor slab steel bars. The utility model can further improve the thickness qualification rate of cast-in-place concrete floor slabs by cooperating with the stirrup bars, and prevent the displacement of the steel bars. At the same time, it can be used as a reference for the thickness of the floor slab, and also control the thickness of the floor slab and reduce the thickness deviation of the protective layer.

[0036] Finally, the concrete is poured. After the concrete pouring is completed, the components of the assembly do not need to be removed and are poured into the floor slab as part of the floor slab reinforcement. The utility model can further improve the thickness qualification rate of the cast-in-place concrete floor slab by cooperating with the reinforcement limiter (3).

[0037] During the above-mentioned operation, an anti-skid pad is provided at the bottom of the installation groove (11), and the anti-skid pad is a rubber pad, and a plurality of rubber protective protrusions of a connected structure are provided on the outside of the rubber pad.

[0038] When in use, since an anti-skid pad with protective protrusions is arranged at the mutually contacting connection position of the installation groove (11) and the upper negative bending moment steel bar (4), it can not only play a protective role and ensure the structural integrity of the installation groove (11) and the upper negative bending moment steel bar (4), but also increase the friction force at the connection, so that the upper negative bending moment steel bar (4) can be inserted into the installation groove (11) and connected to the installation groove (11) to form an integral structure.

[0039] During the entire implementation operation process, a reinforcement limiter tooling (6) in the prior art is also included, and the reinforcement limiter tooling (6) includes a hand handle 61 and a working body 62, wherein the hand handle 61 is a steel I-shaped rod-shaped member as a whole, and a working body 62 is provided on the outer wall at the edge of any end of the I-shaped rod-shaped member, and the working body 62 is a common nut, a hexagonal nut, or a flat head nut.

[0040] Compared with the prior art, the utility model has the following beneficial effects:

[0041] 1. The utility model has a simple structure and a novel and reasonable design. The component is used to prevent the displacement of steel bars. It can also be used as a reference for the thickness of the floor slab and control the thickness of the floor slab, thereby reducing the thickness deviation of the protective layer.

[0042] 2. Compared with the traditional steel stirrup, the utility model has higher strength and rigidity, is not easy to deform, can better fix the position of the upper negative bending moment steel bar, and prevent the protective layer from being too thick due to the displacement of the steel bar caused by the compression deformation of the stirrup bar;

[0043] 3. The utility model overcomes the problem that the traditional stirrups are not of the same thickness as the floor slab and cannot be used as a reference for controlling the thickness of the floor slab. The patented component is of the same thickness as the floor slab and can be placed in the floor slab as a reference for the thickness of the floor slab to prevent the floor slab from being too thick or too thin.

[0044] 4. The present invention adopts a reinforcing limiter in combination with the present invention, so that the upper row of reinforcements can be stably tied and fixed, and the spacing between the reinforcements can be effectively controlled.

[0045] 5. The utility model has a reasonable and simple structure, is easy to manufacture, and is convenient and flexible to use. During operation, the component is directly placed on the template. At the same time, after the floor slab is poured, the component is completely covered and will not have any impact on the construction. It has strong anti-construction interference ability;

[0046] 6. The utility model has a simple structure and is easy to use. It is made of square steel, which saves costs, is simple to make, easy to operate, is beneficial to workers in construction, and has high applicability. Through the cooperation between the control component and the reinforcement limiter, the thickness qualification rate of the cast-in-place concrete floor slab can be further improved. Adjustments can be made according to the thickness of the structural floor slab and the position of the steel bars, and the quality control effect of the floor slab thickness is good. At the same time, the component is used to ensure the accuracy of the floor slab thickness and the operability of the construction control, effectively control the thickness of the cast-in-place concrete floor slab, improve the construction quality, save labor hours, reduce construction costs, and ensure the quality of steel and concrete construction;

[0047] 7. The utility model has the advantages of stable structure and not easy to deform, which makes the steel stirrup more resistant to pressure and more stable in support; it solves the technical problem that the traditional stirrup reinforcement has weak anti-trampling ability during use;

[0048] 8. The utility model solves the technical problem that the traditional structure only limits the position of the steel bar but does not effectively fix the steel bar. In this case, the steel bar is easily affected by foreign objects. If the operator accidentally touches the stirrup and the steel bar during the construction process, the steel bar may fall off the stirrup. The utility model not only limits the position of the steel bar but also effectively fixes the steel bar, making it not easy to be affected by foreign objects.

[0049] 9. The exterior of the utility model is coated with anti-rust paint and a waterproof layer, which can prevent rust while extending the service life of the entire component, achieving environmental protection while saving resources. At the same time, the exterior of the component is coated with self-luminous fluorescent material, which can clearly mark the position of the wiring component at night or in a dark room or underground construction environment, and can effectively serve as a safety reminder, improve conspicuousness, and be easy for people to identify, thereby increasing safety in construction and life. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings, wherein:

[0051] Figure 1 This is one of the schematic diagrams of the use state of the utility model;

[0052] Figure 2 This is the second schematic diagram of the use state of the utility model;

[0053] Figure 3 This is the third schematic diagram of the use state of the utility model;

[0054] Figure 4 It is one of the overall structural schematic diagrams of the utility model;

[0055] Figure 5 This is the second schematic diagram of the overall structure of the utility model;

[0056] Figure 6 It is one of the overall structural schematic diagrams of another design structure of the utility model;

[0057] Figure 7 This is the second overall structural diagram of another design structure of the utility model;

[0058] Figure 8 It is a cross-sectional schematic diagram of a steel bar limiting clamp (2) component of the utility model;

[0059] Fig. 9 It is a schematic diagram of the overall structure of the limit clamp (2) component of the utility model;

[0060] Fig.10 This is the third overall structural diagram of another design structure of the utility model;

[0061] Fig.11 It is a schematic diagram of the overall structure of the reinforcement limiter (3) of the utility model;

[0062] Fig.12 It is a schematic diagram of the overall structure of another design structure of the reinforcement limiter (3) of the utility model;

[0063] Fig.13 It is a schematic diagram of the overall structure of the reinforcement limiter tooling (6) of the utility model;

[0064] Among them, the numbers in the figure are: 1-support, 11-installation groove, 12-scale line;

[0065] 2—rebar limiting clamp, 21—fixing block, 211—sliding installation slot, 212—slot, 22—clamping assembly, 221—clamping column, 222—locking block, 223—telescopic spring, 224—clamping ring;

[0066] 3—reinforcement limiter, 31—upper limiter, 311—upper clamp, 32—lower limiter, 321—lower clamp;

[0067] 4—Upper negative moment reinforcement;

[0068] 5—lower layer negative moment reinforcement;

[0069] 6—reinforcement limiter tooling, 61—handle, 62—working body. DETAILED DESCRIPTION

[0070] In order to make the technical means, creative features, objectives and effects of the present invention easy to understand, the technical solution of the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that the embodiments and features in the embodiments of the present application can be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

[0071] In summary, a more specific implementation method of the present invention is:

[0072] As the instruction manual Figure 1 To the instruction manual Fig.13 A component for controlling both the negative moment reinforcement cover and the floor slab thickness is shown, comprising:

[0073] The support 1 has mounting grooves 11 symmetrically formed on opposite sides of the upper part of the support 1, and the mounting grooves 11 are used to install the upper negative bending moment steel bars 4;

[0074] The steel bar limiting clamp 2 is slidably mounted on each mounting groove 11 and is used to limit the upper negative bending moment steel bar 4 to prevent the upper negative bending moment steel bar 4 from falling out upwards;

[0075] A reinforcement limiter 3, one end of which is an upper limiter 31 of a connected structure, and the other end is a lower limiter 32 of a connected structure; wherein:

[0076] The reinforcement limiter 3 is arranged on any one side or multiple sides of the support 1; one end of the reinforcement limiter 3 is connected to the upper negative bending moment steel bar 4, and the other end is connected to the lower negative bending moment steel bar 5.

[0077] In the present invention, the upper negative moment steel bars 4 include upper negative moment transverse steel bars and upper negative moment longitudinal steel bars; the lower negative moment steel bars 5 include lower negative moment transverse steel bars and lower negative moment longitudinal steel bars.

[0078] like Figure 8 and Fig. 9 As shown, the steel bar limiting clamp 2 includes:

[0079] A fixing block 21, the fixing block 21 is slidably engaged with one side of the mounting groove 11, and a sliding mounting groove 211 is provided inside the fixing block 21;

[0080] The clamping assembly 22 is detachably mounted in the sliding mounting groove 211 .

[0081] Specifically, the middle parts of both sides of the fixing block 21 are provided with a card slot 212 adapted to the installation slot 11;

[0082] The sliding installation groove 211 is obliquely penetrated and opened on the fixing block 21 , wherein one end of the sliding installation groove 211 is provided with an internal thread section.

[0083] More specifically, the clamping assembly 22 includes:

[0084] A clamping column 221, the clamping column 221 is slidably mounted at the other end of the sliding mounting groove 211;

[0085] A locking block 222, the locking block 222 is threadedly connected to the internal thread section of the sliding installation groove 211;

[0086] The telescopic spring 223 has one end sleeved on the outside of the clamping column 221 , and the other end of the telescopic spring 223 is connected to the locking block 222 .

[0087] More specifically, the fixing block 21 is an overall square structure; the sliding installation groove 211 includes an installation groove section for installing the clamping assembly 22 and a sliding groove section for slidingly installing the clamping column 221, wherein the diameter of the installation groove section is larger than the diameter of the sliding groove section.

[0088] More specifically, a clamping ring 224 for connecting the telescopic spring 223 is connected to the outer wall of one end of the clamping column 221, and an inclined surface is provided at the other end of the clamping column 221.

[0089] Furthermore, a protective sleeve matching with the clamping column 221 is sleeved on the outer surface thereof, and the protective sleeve is a rubber protective sleeve, and a plurality of rubber protective protrusions of a connected structure are arranged on the outside of the rubber protective sleeve.

[0090] Therefore, since a protective sleeve with protective protrusions on the outside is provided at the contact connection position between the clamping column 221 and the upper negative bending moment steel bar 4, it can not only play a protective role and ensure the structural integrity of the clamping column 221 and the upper negative bending moment steel bar 4, but also increase the friction at the connection, so that when the upper negative bending moment steel bar 4 is downwardly inserted into the clamping column 221, it is limitedly connected to the clamping column 221 to form an integral structure.

[0091] Furthermore, the installation grooves 11 are provided in pairs and arranged opposite to each other, wherein the groove depth of any two opposite installation grooves 11 is smaller than the groove depth of another two opposite installation grooves 11 .

[0092] Furthermore, an anti-skid pad is provided at the bottom of the installation groove 11. The anti-skid pad is a rubber protective pad, and a plurality of rubber protective protrusions of a connected structure are provided on the outside of the rubber protective pad.

[0093] Therefore, since an anti-slip pad with external protective protrusions is provided at the contact connection position between the installation groove 11 and the upper negative bending moment steel bar 4, it can not only play a protective role and ensure the structural integrity of the installation groove 11 and the upper negative bending moment steel bar 4, but also increase the friction at the connection, so that the upper negative bending moment steel bar 4 can be inserted into the installation groove 11, and it is limitedly connected to the installation groove 11 to form an integral structure.

[0094] Furthermore, it also includes: the support 1 is a square steel, and a scale line 12 is engraved on the square steel, and the scale line 12 extends from the bottom edge of the support 1 in the height direction to the top edge.

[0095] Furthermore, the reinforcing limiter 3 is an S-shaped or C-shaped member made of steel as a whole, or a combination of S-shaped or C-shaped members.

[0096] Specifically, an upper clamping member 311 is further provided on the inner side wall of the upper limit member 31, and the upper clamping member 311 is fixedly provided near the free end of the upper limit member 31;

[0097] A lower clamping member 321 is further provided on the inner side wall of the lower limiting member 32 . The lower clamping member 321 is fixedly disposed near the free end of the lower limiting member 32 .

[0098] Specifically, the upper limit member 31 extends upward from the top of the reinforcement limit member 3 and bends toward the front or back side of the reinforcement limit member 3 to form a U-shaped hook.

[0099] Specifically, the lower stopper 32 extends downward from the bottom of the reinforcement stopper 3 and bends toward the back or front of the reinforcement stopper 3 to form a U-shaped hook.

[0100] Furthermore, the reinforcement limiter 3 and the support 1 are a separate structure or a connected structure.

[0101] Furthermore, the upper negative bending moment reinforcement 4 is composed of a plurality of reinforcements arranged in a criss-cross pattern, wherein an upper limit positioning member 31 is installed on the upper negative bending moment reinforcement 4, and the upper limit positioning member 31 is set on the upper negative bending moment reinforcement 4 by being tied with a limiting rope or is directly tied at the intersection of the reinforcements arranged in a criss-cross pattern.

[0102] Furthermore, the lower layer of negative bending moment steel bars 5 is composed of multiple steel bars arranged in a criss-cross pattern, wherein a lower limit member 32 is installed on the lower layer of negative bending moment steel bars 5, and the lower limit member 32 is tied to the lower layer of negative bending moment steel bars 5 by a limit rope or is directly tied to the intersection of the steel bars arranged in a criss-cross pattern.

[0103] In the present invention, the setting height of the support 1 is equal to the casting thickness of the floor slab.

[0104] Furthermore, an injection molding layer, a waterproof layer, an anti-rust layer and a warning layer are sprayed on the outer surfaces of the support 1, the steel bar limit clamp 2 and the reinforcement limit member 3 in sequence from the inside to the outside, and the warning layer is coated with fluorescent powder.

[0105] In the utility model, a polymer wear-resistant material is injection molded on the injection layer; the anti-rust layer includes an epoxy zinc-rich primer and a chlorinated rubber topcoat and an epoxy micaceous iron intermediate paint located between the epoxy zinc-rich primer and the chlorinated rubber topcoat; the waterproof layer is a polyurethane waterproof coating; and the warning layer is a yellow or black reflective warning tape or a reflective color film or a reflective paint.

[0106] At the same time, in the present utility model, the connections referred to are all fixed connections, movable connections, or detachable connections, wherein the fixed connection is a welding connection or is directly processed into an integrally formed structure; the movable connection or detachable connection is a hinged connection, a threaded connection, a bayonet connection, a plug-in connection, or a bolt assembly connection or a screw connection.

[0107] During the entire implementation process mentioned above, a reinforcement limit piece tooling 6 in the prior art is also included, and the reinforcement limit piece tooling 6 includes a hand handle 61 and a working body 62, wherein the hand handle 61 is a steel I-shaped rod-shaped body component as a whole, and a working body 62 is provided on the outer wall at the edge of any end of the I-shaped rod-shaped body component, and the working body 62 is a common nut, a hexagonal nut, or a flat head nut.

[0108] In summary, a more specific implementation method of the present invention is:

[0109] Before using the negative bending moment steel bar protective layer and floor slab thickness dual-control component of the above-mentioned design structure, the completed component needs to be transported to the designated work location manually or with corresponding transport equipment and installed as a spare.

[0110] Before use, the reinforcement limit piece 3 is manufactured. During the manufacturing process, the waste steel bars are cut into straight steel bars of a certain length in batches according to actual use requirements, that is, the front and rear ends of the reinforcement limit piece 3 are both inserted into the lower end of the reinforcement limit piece 3 through the lower end working body 62 of the reinforcement limit piece tooling 6 by the lever principle to bend it into a lower limit piece 32, and the lower limit piece 32 of the reinforcement limit piece 3 is bent into a U shape, and then the upper end of the reinforcement limit piece 3 is bent into an upper limit piece 31, and the upper limit piece 31 of the reinforcement limit piece 3 is bent into a U shape for use.

[0111] After the above structure is completed, it needs to be installed. During the specific installation and use, at the beginning, the operator first lays the lower layer of negative moment transverse steel bars and the lower layer of negative moment longitudinal steel bars of the lower layer of negative moment steel bars 5 on the floor slab according to the construction standard requirements, and then places a reasonable number of the utility model to the designated appropriate position according to the construction requirements. Subsequently, the operator installs the upper layer of negative moment longitudinal steel bars in the installation groove 11 with a high groove depth according to the position of the lower layer of negative moment steel bars 5, and then installs the upper layer of negative moment transverse steel bars in the installation groove 11 with a low groove depth; when the upper layer of negative moment steel bars 4 are in contact with the two steel bar limit clamps 2 arranged oppositely inside the corresponding installation groove 11, the upper layer of negative moment steel bars 4 are in contact with the two steel bar limit clamps 2 arranged oppositely inside the corresponding installation groove 11. The ... Under the action of inertia and the dual pressure of gravity pressed by the operator, the clamping columns 221 of the two steel bar limiting clamps 2 move obliquely downward at the same time, thereby driving the telescopic spring 223 to compress downward. When the upper negative bending moment steel bar 4 slides and is clamped in the clamping groove formed by the two steel bar limiting clamps 2, the two clamping columns 221 are quickly reset under the elastic action of the corresponding telescopic springs 223. During the reset, the two relative clamping columns 221 overlap and contact each other closely, thereby clamping the upper negative bending moment steel bar 4 in the clamping groove formed by the two steel bar limiting clamps 2, and it will not pop out or fall off, completing the installation of the upper negative bending moment steel bar 4, ensuring that during the concrete pouring process, the deformation and relative displacement of the steel bars are reduced, thereby improving the quality of floor slab pouring.

[0112] Next, the operator inserts the lower limit piece 32 of the reinforcement limit piece 3, which has been bent at one end, into the intersection of the longitudinal and transverse steel bars of the lower layer negative bending moment steel bars 5 or the transverse steel bars of the lower layer negative bending moment steel bars 5, and the other end of the reinforcement limit piece 3 extends to the intersection of the longitudinal and transverse steel bars of the upper layer negative bending moment steel bars 4 or the longitudinal steel bars, and inserts the upper limit piece 31 of the reinforcement limit piece 3 into the intersection of the longitudinal and transverse steel bars of the upper layer negative bending moment steel bars 4 or the longitudinal steel bars. At this time, the upper limit piece 31 and the lower limit piece 32 of the reinforcement limit piece 3 can just fix the upper and lower layers of steel bars of the structural floor, that is, fix the upper layer negative bending moment steel bars 4 and the lower layer negative bending moment steel bars 5, to ensure that during the concrete pouring process, the deformation and relative displacement of the steel bars are reduced, thereby improving the floor pouring quality.

[0113] After installation, it can be used. The operation process during use is: this component will work together with the reinforcement limiter 3 to fix and support the upper negative moment reinforcement 4 and the lower negative moment reinforcement 5. After the concrete is poured, this component does not need to be removed and is poured into the floor as part of the floor reinforcement. The utility model can further improve the thickness qualification rate of the cast-in-place concrete floor through the mutual cooperation with the stirrup reinforcement, and prevent the displacement of the reinforcement. At the same time, it can also be used as a reference for the thickness of the floor to control the thickness of the floor and reduce the thickness deviation of the protective layer.

[0114] Finally, the concrete is poured. After the concrete pouring is completed, the components of the assembly do not need to be removed and are poured into the floor slab as part of the floor slab reinforcement. The utility model can further improve the thickness qualification rate of the cast-in-place concrete floor slab by cooperating with the reinforcement limiter 3.

[0115] During the above-mentioned operation, an anti-skid pad is provided at the bottom of the installation groove 11. The anti-skid pad is a rubber pad, and a plurality of rubber protective protrusions of a connected structure are provided on the outside of the rubber pad.

[0116] When in use, since an anti-slip pad with external protective protrusions is provided at the contact connection position between the installation groove 11 and the upper negative bending moment steel bar 4, it can not only play a protective role, but also ensure the structural integrity of the installation groove 11 and the upper negative bending moment steel bar 4, while also increasing the friction at the connection, so that the upper negative bending moment steel bar 4 can be inserted into the installation groove 11, and is limitedly connected to the installation groove 11 to form an integral structure.

[0117] During the entire implementation operation process, a reinforcement limit piece tooling 6 in the prior art is also included, and the reinforcement limit piece tooling 6 includes a hand handle 61 and a working body 62, wherein the hand handle 61 is a steel I-shaped rod-shaped body component as a whole, and a working body 62 is provided on the outer wall at the edge of any end of the I-shaped rod-shaped body component, and the working body 62 is an ordinary nut, a hexagonal nut, or a flat head nut.

[0118] Example 2

[0119] Example 2 is basically the same as Example 1, with the only difference being that, based on Example 1, it further includes: the support 1 is a square steel, on which a scale line 12 is engraved, and the scale line 12 extends from the bottom edge of the support 1 in the height direction to the top edge.

[0120] In the present invention, the setting height of the support 1 is equal to the casting thickness of the floor slab.

[0121] It can be seen that since the support 1 is also engraved with a scale line 12 with a height equal to the casting thickness of the floor slab, the specific thickness of the cast floor slab can be clearly known, and the operator can be more intuitively prompted to the amount of concrete to be poured, making the concrete pouring more accurate, ensuring the pouring accuracy and meeting the construction requirements.

[0122] The specific installation is the same as that in Example 1 and will not be described again here.

[0123] On the basis of Examples 1 and 2, an injection molding layer, a waterproof layer, an anti-rust layer and a warning layer are sprayed on the outer surfaces of the support 1, the steel bar limit clip 2 and the reinforcement limit member 3 in sequence from the inside to the outside, and the warning layer is coated with fluorescent powder.

[0124] In the utility model, a polymer wear-resistant material is injection molded on the injection molding layer; the anti-rust layer includes an epoxy zinc-rich primer and a chlorinated rubber topcoat and an epoxy micaceous iron intermediate paint located between the epoxy zinc-rich primer and the chlorinated rubber topcoat; the waterproof layer is a polyurethane waterproof coating; the warning layer is a yellow or black reflective warning tape or a reflective color film or a reflective paint. Therefore, since the exterior of the utility model is coated with anti-rust paint and a waterproof layer, it can prevent rust while also extending the service life of the entire component, achieving environmental protection while also saving resources. At the same time, the exterior of the component is coated with a self-luminous fluorescent material, which can clearly mark the position of the line-laying component at night or in a dark room or underground construction environment, and can effectively serve as a safety reminder, improve conspicuity, and be easy for people to identify, thereby increasing safety in construction and life.

[0125] At the same time, in the present utility model, the connections referred to are all fixed connections, movable connections, or detachable connections, wherein the fixed connection is a welding connection or is directly processed into an integrally formed structure; the movable connection or detachable connection is a hinged connection, a threaded connection, a bayonet connection, a plug-in connection, or a bolt assembly connection or a screw connection.

[0126] Finally, it should be noted that the above is only a preferred embodiment of the utility model, and does not limit the utility model in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the utility model without departing from the content of the technical solution of the utility model still belongs to the protection scope of the technical solution of the utility model.

Claims

1. A component for controlling the protective layer of negative bending steel bars and the thickness of floor slabs, characterized in that: include: A support (1), wherein mounting grooves (11) are symmetrically provided on opposite sides of the upper part of the support (1), and the mounting grooves (11) are used to install the upper negative bending moment steel bars (4); A steel bar limiting clamp (2), the steel bar limiting clamp (2) is slidably mounted on each mounting groove (11) and is used to limit the upper layer of negative bending moment steel bars (4) to prevent the upper layer of negative bending moment steel bars (4) from falling out upwards; A reinforcement limiter (3), one end of which is an upper limiter (31) of the connected structure, and the other end of which is a lower limiter (32) of the connected structure; wherein: The reinforcement limiter (3) is arranged on any one side or multiple sides of the support (1); one end of the reinforcement limiter (3) is connected to the upper layer negative bending moment steel bars (4), and the other end is connected to the lower layer negative bending moment steel bars (5).

2. The component for controlling the negative moment reinforcement protective layer and floor slab thickness according to claim 1, characterized in that: The steel bar limiting clamp (2) comprises: A fixed block (21), the fixed block (21) is slidably engaged with one side of the mounting groove (11), and a sliding mounting groove (211) is provided inside the fixed block (21); The clamping assembly (22) is detachably mounted in the sliding mounting groove (211).

3. The component for controlling the negative moment reinforcement protective layer and floor slab thickness according to claim 2, characterized in that: The middle parts of both sides of the fixing block (21) are provided with clamping grooves (212) adapted to the mounting grooves (11); The sliding installation groove (211) is obliquely penetrated and opened on the fixed block (21), wherein one end of the sliding installation groove (211) is provided with an internal thread section.

4. The component for controlling the negative moment reinforcement protective layer and floor slab thickness according to claim 2 is characterized in that: The clamping assembly (22) comprises: A clamping column (221), the clamping column (221) is slidably mounted at the other end of the sliding mounting groove (211); A locking block (222), the locking block (222) is threadedly connected to the internal thread section of the sliding installation groove (211); A telescopic spring (223), one end of which is sleeved on the outside of the clamping column (221), and the other end of which is connected to the locking block (222).

5. The component for controlling the negative moment reinforcement protective layer and floor slab thickness according to claim 2, characterized in that: The fixing block (21) is of a square structure as a whole; the sliding installation groove (211) comprises an installation groove section for installing the clamping assembly (22) and a sliding groove section for slidingly installing the clamping column (221), wherein the diameter of the installation groove section is greater than the diameter of the sliding groove section.

6. The component for controlling the negative moment reinforcement protective layer and floor slab thickness according to claim 4, characterized in that: A clamping ring (224) for connecting to a telescopic spring (223) is connected to the outer wall of one end of the clamping column (221), and an inclined surface is provided at the other end of the clamping column (221).

7. The component for controlling the negative moment reinforcement protective layer and floor slab thickness according to claim 1, characterized in that: The installation grooves (11) are arranged in pairs, with four being arranged opposite to each other, wherein the groove depth of any two opposite installation grooves (11) is smaller than the groove depth of another two opposite installation grooves (11).

8. The component for controlling the negative moment reinforcement protective layer and floor slab thickness according to claim 1, characterized in that: Also includes: The support (1) is a square steel, on which a scale line (12) is engraved. The scale line (12) extends from the bottom edge of the support (1) in the height direction to the top edge.

9. The component for controlling the negative moment reinforcement protective layer and floor slab thickness according to claim 1, characterized in that: An upper clamping member (311) is also provided on the inner side wall of the upper limit positioning member (31), and the upper clamping member (311) is fixedly arranged near the free end of the upper limit positioning member (31); A lower clamping member (321) is also provided on the inner side wall of the lower limiting member (32), and the lower clamping member (321) is fixedly arranged near the free end of the lower limiting member (32).

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