Rotatable telescopic recycled concrete protection layer thickness control device

Abstract

The utility model relates to the technical field of building template system construction, and discloses a rotatable telescopic recycled concrete protective layer thickness control device which comprises prefabricated concrete test blocks with the same specification, the prefabricated concrete test blocks with the same specification comprise concrete test blocks with the same strength in a groove-shaped structure and concrete test blocks with the same strength in the structure, the thickness control device comprises a groove-shaped structure same-strength concrete test block and a groove-shaped structure same-strength concrete test block, two embedded nuts are arranged on each of the groove-shaped structure same-strength concrete test block and the groove-shaped structure same-strength concrete test block, and the thickness control device of the rotatable telescopic recycled concrete protective layer is in threaded connection with the two embedded nuts through embedded bolts. The distance between the groove-shaped structure same-strength concrete test blocks and the structure same-strength concrete test blocks can be adjusted by rotating the embedded bolts, the groove-shaped structure same-strength concrete test blocks and the structure same-strength concrete test blocks can be effectively prevented from inclining, and it is guaranteed that the whole device can be stably placed.

Description

TECHNICAL FIELD

[0001] The utility model relates to building template system construction technical field, concretely is a rotatable telescopic recycled concrete protective layer thickness control device. BACKGROUND

[0002] The concrete protective layer refers to the outermost layer of reinforcement and the concrete surface, and in the conventional case, the most commonly used concrete protective layer control method in the template system construction process is: the prefabricated concrete cushion block is used between the beam plate structure bottom side reinforcement and the template, the steel support two side templates and the plug concrete cushion block are used on both sides of the beam. Its principle is: the reinforcement and the template are separated by the cushion block, and the thickness of the concrete cushion block is used to control the thickness of the concrete protective layer.

[0003] Such as the announcement number for "CN220598913U" public a rotatable telescopic concrete protective layer thickness control device, this device through the movable connection between the embedded bolt and the embedded nut, not only can the reinforcement and the template between fixed connection, also can according to the actual use demand of construction site, adjust the connecting gap between the embedded bolt and the embedded nut, simultaneously this concrete protective layer control device is by concrete, embedded screw and embedded bolt three components, convenient, simple to make, thereby not only can fast processing, simple operation is easy to operate, simultaneously still can enhance the construction quality of concrete protective layer, accelerate construction efficiency, and meet the concept of green construction, be favorable to long-term use.

[0004] But the embedded bolt in the above-mentioned device is fixed at the bottom of the groove type structure and strength prefabricated concrete block, and the general concrete test block is square. In order to adjust the concrete protective layer of different thickness, the structure and strength prefabricated concrete block is easily inclined or the groove type structure and strength prefabricated concrete block is inclined. After the groove type structure and strength prefabricated concrete block is bound with the reinforcement, only the structure and strength prefabricated concrete block can be inclined, and it cannot be placed stably. In the actual construction process, the device needs to stably support the template, which has certain disadvantages. In addition, the groove type structure and strength prefabricated concrete block has no stable limiting mechanism, and the staff needs to bind it with the reinforcement by using a fastener such as iron wire, which increases the workload and reduces the work efficiency. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a rotatable telescopic recycled concrete protective layer thickness control device to solve the problems in the above background technology.

[0006] To achieve the above object, the utility model provides the following technical scheme: A rotatable telescopic recycled concrete protective layer thickness control device, including prefabricated same specification concrete test block, prefabricated same specification concrete test block includes recessed groove shape structure same strength concrete test block and structure same strength concrete test block, recessed groove shape structure same strength concrete test block and structure same strength concrete test block all are provided with embedded nut on,

[0007] The embedded nut is provided with two, one embedded nut is arranged at the bottom of the recessed groove shape structure same strength concrete test block, another group embedded nut is arranged at the top of the structure same strength concrete test block, and the embedded bolt is connected between the two groups of embedded nuts, and the embedded bolt is provided with a locking nut for locking the recessed groove shape structure same strength concrete test block.

[0008] Preferably, the bottom of the recessed groove shape structure same strength concrete test block is provided with a clamping groove one, the top of the structure same strength concrete test block is provided with a clamping groove two, one embedded nut is fixed in the clamping groove one, and the other group of embedded nuts is fixed in the clamping groove two, and the bottom of the recessed groove shape structure same strength concrete test block and the top of the structure same strength concrete test block are both provided with a round hole. When the recessed groove shape structure same strength concrete test block and the structure same strength concrete test block are completed but not yet set, the embedded nut is placed on the recessed groove shape structure same strength concrete test block and the structure same strength concrete test block, and a round rod adapted to the center hole of the embedded nut is inserted. After the recessed groove shape structure same strength concrete test block and the structure same strength concrete test block are set, the round rod is pulled out to complete the manufacture of the round hole, the clamping groove one and the clamping groove two. The round hole allows the embedded bolt to be inserted. When adjusting the distance, the recessed groove shape structure same strength concrete test block and the structure same strength concrete test block can be controlled by rotating the embedded bolt to control the thickness of the concrete protective layer.

[0009] Preferably, the embedded bolt and the two groups of embedded nuts are threadedly connected. By threadedly connecting the embedded bolt and the two groups of embedded nuts, the distance between the recessed groove shape structure same strength concrete test block and the structure same strength concrete test block can be adjusted by rotating the embedded bolt, and the recessed groove shape structure same strength concrete test block and the structure same strength concrete test block can be effectively prevented from tilting, ensuring that the device as a whole can be stably placed.

[0010] Preferably, the embedded bolt and the two groups of embedded nuts are threadedly connected. By threadedly connecting the embedded bolt and the two groups of embedded nuts, the distance between the recessed groove shape structure same strength concrete test block and the structure same strength concrete test block can be adjusted by rotating the embedded bolt, and the recessed groove shape structure same strength concrete test block and the structure same strength concrete test block can be effectively prevented from tilting, ensuring that the device as a whole can be stably placed.

[0011] Preferably, the lock nut is threadedly connected with the embedded bolt, after the interval between the recess-shaped structural and strength concrete test block and the structural and strength concrete test block is adjusted, the embedded bolt is held and the lock nut is rotated, so that the lock nut tightly abuts against the bottom of the recess-shaped structural and strength concrete test block, thereby the recess-shaped structural and strength concrete test block is locked, and the recess-shaped structural and strength concrete test block cannot be easily rotated, and the recess-shaped structural and strength concrete test block can be placed after the cross-shaped recess on the recess-shaped structural and strength concrete test block abuts against the steel bar, so that the recess-shaped structural and strength concrete test block does not need to be fixed by using a fastener such as a wire, and the recess-shaped structural and strength concrete test block is convenient to use.

[0012] Compared with the prior art, the utility model provides a rotatable telescopic recycled concrete cover thickness control device, has the following beneficial effects:

[0013] 1、This rotatable telescopic recycled concrete cover thickness control device, through two groups of embedded nuts are connected with embedded bolt by screw thread, realize rotating embedded bolt can adjust the interval between recess-shaped structural and strength concrete test block and structural and strength concrete test block, and can effectively avoid recess-shaped structural and strength concrete test block and structural and strength concrete test block occur inclination, guarantee device whole can stable place.

[0014] 2、This rotatable telescopic recycled concrete cover thickness control device, through the lock nut setting, after the interval between recess-shaped structural and strength concrete test block and structural and strength concrete test block is adjusted, hold embedded bolt, rotate lock nut, so that lock nut and recess-shaped structural and strength concrete test block bottom tightly abut, thereby realize to recess-shaped structural and strength concrete test block is locked, so that recess-shaped structural and strength concrete test block cannot be easily rotated, and the recess-shaped structural and strength concrete test block can be placed after the cross-shaped recess on the recess-shaped structural and strength concrete test block abuts against the steel bar, so that the recess-shaped structural and strength concrete test block does not need to be fixed by using a fastener such as a wire, and the recess-shaped structural and strength concrete test block is convenient to use. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 It is the whole front view structure schematic diagram of the utility model;

[0016] Fig. 2 It is the whole bottom view structure schematic diagram of the utility model;

[0017] Fig. 3 It is the explosion section front view structure schematic diagram of the utility model.

[0018] In the drawing: 1, recess-shaped structural and strength concrete test block; 2, structural and strength concrete test block; 3, embedded nut; 4, embedded bolt; 5, lock nut; 6, clamping groove one; 7, clamping groove two; 8, round hole; 9, cross-shaped recess. DETAILED DESCRIPTION

[0019] As Figs. 1-3 shown, the utility model provides a technical scheme: a rotatable telescopic recycled concrete protective layer thickness control device, including prefabricated same specification concrete test block, prefabricated same specification concrete test block includes recess structure same strength concrete test block 1 and structure same strength concrete test block 2, recess structure same strength concrete test block 1 and structure same strength concrete test block 2 all are provided with embedded nut 3.

[0020] Embedded nut 3 is provided with two, recess structure same strength concrete test block 1's bottom is provided with the clamping groove one 6, and structure same strength concrete test block 2's top is provided with the clamping groove two 7, one embedded nut 3 is fixed in the clamping groove one 6, another group embedded nut 3 is fixed in the clamping groove two 7, recess structure same strength concrete test block 1's bottom and structure same strength concrete test block 2's top all are set up round hole 8, when recess structure same strength concrete test block 1 and structure same strength concrete test block 2 are made and have not coagulated, recess structure same strength concrete test block 1 and structure same strength concrete test block 2 are placed on embedded nut 3, and the round rod that is adapted with embedded nut 3 center hole is inserted, after recess structure same strength concrete test block 1 and structure same strength concrete test block 2 coagulate, round rod is pulled out and can complete the manufacture of round hole 8, clamping groove one 6 and clamping groove two 7, round hole 8 can supply embedded bolt 4 insertion, when adjusting distance, just need to rotate embedded bolt 4 to control the spacing between recess structure same strength concrete test block 1 and structure same strength concrete test block 2, thereby realize the thickness control adjustment of concrete protective layer.

[0021] Embedded bolt 4 and two groups embedded nut 3 are all screw connections, by embedded bolt 4 and two groups embedded nut 3 screw connection, realize rotating embedded bolt 4 to recess structure same strength concrete test block 1 and structure same strength concrete test block 2 between the spacing adjustment, and can effectively avoid recess structure same strength concrete test block 1 and structure same strength concrete test block 2 occur inclination, guarantee device whole body can stable place.

[0022] Recess structure same strength concrete test block 1's top is provided with cross recess 9, by recess structure same strength concrete test block 1 top set up cross recess 9, can make recess structure same strength concrete test block 1 and steel bar carry out adaptive placement.

[0023] The lock nut 5 is threadedly connected with the embedded bolt 4, after the interval adjustment between the recess-shaped structural and strength concrete test block 1 and the structural and strength concrete test block 2 is completed, the embedded bolt 4 is held and the lock nut 5 is rotated, so that the lock nut 5 tightly abuts against the bottom of the recess-shaped structural and strength concrete test block 1, thereby the recess-shaped structural and strength concrete test block 1 is locked, so that the recess-shaped structural and strength concrete test block 1 cannot easily rotate, when used, only the cross-shaped recess 9 on the recess-shaped structural and strength concrete test block 1 is abutted against the steel bar and then placed, without the need of using a fastener such as iron wire to fix, convenient to use.

[0024] The utility model has been described in detail above, but some modifications or improvements can be made on the basis of the utility model, which is obvious to those skilled in the art. Therefore, the modifications or improvements without departing from the spirit of the utility model are within the protection scope of the utility model.

Claims

1. A rotatable and expandable recycled concrete protective layer thickness control device, comprising precast concrete test blocks of the same specifications, characterized in that: The precast concrete test blocks of the same specification include a groove-shaped concrete test block of the same strength (1) and a concrete test block of the same strength (2). Both the groove-shaped concrete test block of the same strength (1) and the concrete test block of the same strength (2) are provided with embedded nuts (3). There are two pre-embedded nuts (3), and pre-embedded bolts (4) are connected between the two sets of pre-embedded nuts (3). The pre-embedded bolts (4) are equipped with locking nuts (5) for locking the groove-shaped concrete test block (1) of the same strength.

2. The rotatable and expandable recycled concrete protective layer thickness control device according to claim 1, characterized in that: One of the pre-embedded nuts (3) is set at the bottom of the groove-shaped concrete test block (1) with the same strength, and another set of the pre-embedded nuts (3) is set at the top of the concrete test block (2) with the same strength. Both pre-embedded nuts (3) are embedded.

3. The rotatable and expandable recycled concrete protective layer thickness control device according to claim 2, characterized in that: The bottom of the groove-shaped structural concrete test block (1) with the same strength is provided with a snap-fit ​​groove one (6), and the top of the structural concrete test block (2) with the same strength is provided with a snap-fit ​​groove two (7). One of the pre-embedded nuts (3) is fixed in the snap-fit ​​groove one (6), and another set of pre-embedded nuts (3) is fixed in the snap-fit ​​groove two (7). The bottom of the groove-shaped structural concrete test block (1) and the top of the structural concrete test block (2) with the same strength are both provided with round holes (8).

4. The rotatable and expandable recycled concrete protective layer thickness control device according to claim 2, characterized in that: The pre-embedded bolt (4) and the two sets of pre-embedded nuts (3) are all threadedly connected.

5. The rotatable and expandable recycled concrete protective layer thickness control device according to claim 1, characterized in that: The top of the groove-shaped structure of the same strength concrete test block (1) is provided with a cross-shaped groove (9).

6. The rotatable and expandable recycled concrete protective layer thickness control device according to claim 1, characterized in that: The locking nut (5) is threadedly connected to the pre-embedded bolt (4).

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