Adjustable bottom plate double-row steel bar spacing control support stool

Abstract

The utility model relates to reinforcing bar positioning technical field especially relates to adjustable bottom plate double -row reinforcing bar spacing control uses support stool of horse, including reinforcing bar and horse stool, the upper side of horse stool is equipped with the clamping groove, the fixed block that corresponds with reinforcing bar is equipped in the clamping groove, the clamping groove both sides are equipped with fixed nail, the horse stool foot vertical penetration has height adjusting lever, the reinforcing bar includes upper row reinforcing bar and lower row reinforcing bar, upper row reinforcing bar and lower row reinforcing bar all are staggered arrangement vertically and horizontally, upper row reinforcing bar is connected with clamping groove through fixed block, height adjusting lever includes long lever, hexagon long nut and short pole, the bottom of horse stool foot is equipped with the hexagonal hole of accommodating hexagon long nut, the utility model discloses horse stool foot vertical penetration has height adjusting lever, improves horse stool strength, can adjust horse stool height simultaneously, uses more convenient, sets up fixed block simultaneously, is used for clamping fixed reinforcing bar, avoids reinforcing bar to shift and bend, improves reinforcing bar protection layer height control reliability and stability.

Description

Technical Field

[0001] This utility model relates to the field of rebar positioning technology, and in particular to a support trestle for controlling the spacing of double-row rebars in an adjustable base plate. Background Technology

[0002] The culvert bottom slab is the foundation structure of the culvert chamber in a culvert project. Its main functions are to bear the load from the superstructure, uniformly transfer stress to the foundation, and provide scour protection, seepage prevention, and foundation protection. During the pouring of the culvert bottom slab, it is necessary to control the height of the concrete cover to ensure the durability, load-bearing capacity, and safety of the concrete structure. The key is to ensure effective bonding between the reinforcing steel and the concrete, while preventing steel corrosion.

[0003] In existing technologies, the height of the concrete cover for reinforcing bars is controlled by spacers or trestles and is not adjustable. It needs to be customized or modified according to actual construction needs, which is costly and inconvenient to construct. Reinforcing bars are generally directly erected on spacers or trestles and tied with wire, which is unreliable and affects the reliability of construction. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing an adjustable support trestle for controlling the spacing of double-row steel bars in the base plate.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: An adjustable base plate double-row rebar spacing control support trestle includes rebars and a trestle. The trestle has a slot on its upper side, and a fixing block corresponding to the rebar is provided in the slot. Fixing nails are provided on both sides of the slot. A height adjustment rod is vertically inserted through the trestle leg. The rebars include an upper row of rebars and a lower row of rebars, which are arranged alternately in both directions. The upper row of rebars is connected to the slot through the fixing block. The height adjustment rod includes a long rod, a hexagonal long nut, and a short rod. A hexagonal hole for accommodating the hexagonal long nut is opened at the bottom of the trestle leg.

[0006] Preferably, the upper side of the trestle is provided with at least one set of fixing blocks in both the longitudinal and transverse directions. The fixing blocks are arranged in pairs and are respectively located on both sides of the upper row of reinforcing bars. The fixing blocks are provided with positioning grooves to accommodate the reinforcing bars.

[0007] Preferably, the slot has through holes on both sides corresponding to the fixing nail, and one end of the fixing nail passes through the through hole and is embedded in the fixing block.

[0008] Preferably, the fixing block is inclined on the side away from the positioning groove, the inner side of the slot is provided with a wedge surface adapted to the fixing block, and a ratchet is provided between the wedge surface of the slot and the inclined surface of the fixing block.

[0009] Preferably, the inner side of the positioning groove of the fixing block is provided with an adjustment patch, and the adjustment patch has multiple layers.

[0010] Preferably, a short nut is provided on the upper side of the long rod, the short nut is located on the upper side of the trestle, and the long rod and the short rod are detachably connected by a hexagonal long nut.

[0011] The beneficial effects of this utility model are as follows: Compared with the prior art, the present invention has a height adjustment rod running vertically through the support leg of the trestle, which improves the strength of the trestle and allows for height adjustment, making it more convenient to use. At the same time, a fixing block is set to clamp and fix the reinforcing bar, preventing the reinforcing bar from shifting or bending, and improving the reliability and stability of the control of the height of the reinforcing bar protective layer. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the working state of a support trestle for controlling the spacing of double-row steel bars in an adjustable base plate, as proposed in this utility model. Figure 2 A three-dimensional exploded view of a support trestle for controlling the spacing of double-row steel bars in an adjustable base plate, as proposed in this utility model. Figure 3 This is a schematic diagram of the main sectional view of a support trestle for controlling the spacing of double-row steel bars in an adjustable base plate, as proposed in this utility model. Figure 4 This is a schematic diagram of the fixing block structure of a support stool for controlling the spacing of double-row steel bars in an adjustable base plate, as proposed in this utility model.

[0013] In the diagram: 1. Rebar; 2. Slot; 21. Through hole; 22. Wedge surface; 3. Fixing block; 31. Adjusting patch; 4. Height adjustment rod; 41. Long rod; 42. Short nut; 43. Hexagonal long nut; 44. Short rod; 5. Relay; 6. Fixing nail. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0015] Reference Figure 1-4An adjustable double-row reinforcement spacing control support for culvert bottom slab includes reinforcement 1 and support 5. Within the reinforcement protective layer of the culvert bottom slab, reinforcement 1 includes an upper row of reinforcement and a lower row of reinforcement. The upper and lower rows of reinforcement are arranged in a staggered manner to form a double-row reinforcement mesh. Support 5 is used to support the upper row of reinforcement to control the height of the reinforcement protective layer of the culvert bottom slab. To control costs, support 5 is generally made of plastic. Vertical height adjustment rods 4 are inserted through the legs of support 5. The height adjustment rods 4 are used to adjust support 5, control the height of the reinforcement protective layer, and improve the load-bearing capacity of support 5. The upper side of the trestle 5 is provided with a slot 2, and the slot 2 is provided with a fixing block 3 corresponding to the rebar 1. The upper side of the trestle 5 is provided with at least one set of fixing blocks 3 in the longitudinal and transverse directions, which are used to fix the upper row of rebars in the longitudinal and transverse directions to prevent the upper row of rebars from bending downward or tilting upward. The upper row of rebars is connected to the slot 2 through the fixing blocks 3. The fixing blocks 3 are set in pairs and are respectively set on both sides of the upper row of rebars. The fixing blocks 3 are made of wood or plastic, which is low in cost and easy to process. The fixing blocks 3 are provided with a positioning groove to accommodate the rebar 1, which is used to clamp the upper row of rebars. The inner side of the positioning groove of the fixing block 3 is provided with an adjustment patch 31. The adjustment patch 31 has multiple layers. The adjustment patch 31 is easy to tear and can be used to quickly adjust the size of the positioning groove to adapt to different sizes of rebars 1. The slot 2 is provided with fixing nails 6 on both sides, and through holes 21 corresponding to the fixing nails 6 are opened on both sides of the slot 2. The tip of the fixing nail 6 is inclined downward, and the other end of the fixing nail 6 passes through the through hole 21 and is embedded in the fixing block 3, thereby restricting the movement of the fixing block 3, effectively fixing the upper row of steel bars, and preventing them from moving or bending. The fixing block 3 is inclined on the side away from the positioning groove. The inner side of the slot 2 is provided with a wedge surface 22 that is compatible with the fixing block 3. When the fixing block 3 is pressed down, the wedge surface 22 squeezes the fixing block 3 and clamps the upper row of steel bars. There are ratchet teeth between the wedge surface 22 of the slot 2 and the inclined surface of the fixing block 3 to achieve the fixing and anti-slip between the fixing block 3 and the slot 2. The height adjustment rod 4 includes a long rod 41, a hexagonal long nut 43, and a short rod 44. The bottom of the support leg of the trestle 5 has a hexagonal hole to accommodate the hexagonal long nut 43. The hexagonal long nut 43 slides in the hexagonal hole, which is convenient for disassembly but restricts the rotation of the hexagonal long nut 43. A short nut 42 is provided on the upper side of the long rod 41. The short nut 42 is located on the upper side of the trestle 5 and is used to fix the long rod 41 on the trestle 5. The surfaces of the long rod 41 and the short rod 44 are threaded. The long rod 41 and the short rod 44 are detachably connected by the hexagonal long nut 43. According to the actual construction needs, the long rod 41 or the short rod 44 can be selected to face downwards as a support to adjust the height of the upper row of steel bars.

[0016] During transportation, the trestles 5 can be stacked to reduce space occupation and facilitate handling and carrying. The long rod 41 can be used as a connector between the trestles 5. The short nut 42 can be removed and the long rod 41 can be connected by the hexagonal long nut 43 to improve the reliability of the connection between multiple trestles 5 and facilitate handling and movement.

[0017] In this embodiment, before pouring the bottom slab of the culvert, the reinforcing bars are tied first. There are two options: long rod 41 and short rod 44. The height of the concrete cover of the reinforcing bars is generally 40 to 75 cm. When the height of the concrete cover of the reinforcing bars is low, the short rod 44 is directly selected and embedded into the hexagonal hole by the hexagonal long nut 43, eliminating the need for the long rod 41 and reducing costs. When the height of the concrete cover of the reinforcing bars is high, the long rod 41 is selected and the height is adjusted by the hexagonal long nut 43. Depending on the thickness of the reinforcing bar 1, tear and adjust the patch 31, clamp the reinforcing bar 1 with the fixing block 3, and press it into the slot 2. If the reinforcing bar 1 is not severely warped, it can be fixed with ratchet to prevent the reinforcing bar 1 from loosening. If the reinforcing bar 1 is easy to loosen, it can be reinforced with fixing nail 6.

[0018] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

[0019] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0020] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

Claims

1. A support trestle for controlling the spacing of double-row reinforcing bars in an adjustable base plate, comprising reinforcing bars (1) and a support trestle (5), characterized in that, The upper side of the stool (5) is provided with a slot (2), and a fixing block (3) corresponding to the steel bar (1) is provided in the slot (2). Fixing nails (6) are provided on both sides of the slot (2). A height adjustment rod (4) is vertically inserted through the legs of the stool (5). The steel bar (1) includes an upper row of steel bars and a lower row of steel bars. The upper row of steel bars and the lower row of steel bars are arranged in a staggered manner in both directions. The upper row of steel bars is connected to the slot (2) through a fixing block (3). The height adjustment rod (4) includes a long rod (41), a hexagonal long nut (43) and a short rod (44). The bottom of the support leg of the trestle (5) is provided with a hexagonal hole to accommodate the hexagonal long nut (43).

2. The adjustable base plate double-row rebar spacing control support trestle according to claim 1, characterized in that, At least one set of fixing blocks (3) is provided on the upper side of the trestle (5) in both longitudinal and transverse directions. The fixing blocks (3) are arranged in pairs and are respectively located on both sides of the upper row of reinforcing bars. The fixing blocks (3) are provided with positioning grooves to accommodate reinforcing bars (1).

3. The adjustable base plate double-row rebar spacing control support trestle according to claim 1, characterized in that, The slot (2) has through holes (21) on both sides corresponding to the fixing nail (6). One end of the fixing nail (6) passes through the through hole (21) and is embedded in the fixing block (3).

4. The adjustable base plate double-row rebar spacing control support trestle according to claim 2, characterized in that, The fixing block (3) is inclined away from the positioning groove. The inner side of the slot (2) is provided with a wedge surface (22) that is adapted to the fixing block (3). A ratchet is provided between the wedge surface (22) of the slot (2) and the inclined surface of the fixing block (3).

5. A support trestle for controlling the spacing of double-row reinforcing bars in an adjustable base plate according to claim 4, characterized in that, The fixing block (3) has an adjustment patch (31) inside the positioning groove, and the adjustment patch (31) has multiple layers.

6. A support trestle for controlling the spacing of double-row reinforcing bars in an adjustable base plate according to claim 1, characterized in that, The long rod (41) is provided with a short nut (42) on the upper side. The short nut (42) is located on the upper side of the stool (5). The long rod (41) and the short rod (44) are detachably connected by a hexagonal long nut (43).

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