CN211347780U

CN211347780U - Hardness detection device for concrete slab

Info

Publication number: CN211347780U
Application number: CN201921313303.3U
Authority: CN
Inventors: 刘旭东; 郭旭红; 李敏敏
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-08-13
Filing date: 2019-08-13
Publication date: 2020-08-25
Anticipated expiration: 2029-08-13

Abstract

The utility model provides a hardness detection device for concrete slab relates to concrete slab hardness and detects technical field. This a hardness detection device for concrete slab, including the base, the last fixed surface of base is connected with the box, and the position sliding connection that the upper surface of base is located both sides around the box has the U-shaped frame, and the box is located the inside of U-shaped frame, and the upper wall of U-shaped frame is pegged graft and is had hydraulic lift cylinder. According to the hardness detection device for the concrete slab, the motor is turned on, the rotating shaft is rotated, the main bevel gear drives the auxiliary bevel gear to rotate, the threaded rod is rotated to enable the threaded sleeve to move towards the middle direction, the concrete slab is fixed, then the nut is rotated to enable the threaded column to rotate, the fixed plate moves downwards, the fixed plate fixes the concrete slab again, the hydraulic lifting cylinder is controlled to move downwards, the telescopic rod drives the pressing plate to move downwards, and the hardness of the concrete slab is judged according to the damage degree of the concrete slab.

Description

Hardness detection device for concrete slab

Technical Field

The utility model relates to a concrete slab hardness detects technical field, specifically is a hardness detection device for concrete slab.

Background

Concrete panels, panels made of concrete material, basic structures and elements in building construction and various engineering structures, are commonly used as roof. The concrete slab is divided into square slabs, circular slabs and special-shaped slabs according to the plane shape, the concrete slab is divided into unidirectional slabs and bidirectional slabs according to the stress action mode of the structure, the unidirectional slabs, four-side supporting bidirectional slabs and beamless flat slabs supported by columns are the most common, and the thickness of the slab meets the requirements of strength and rigidity.

The existing concrete slab manufacturers often have the problem that the material is lost due to work stealing during the concrete slab manufacturing process in order to reduce the cost during the concrete slab manufacturing process, so that the hardness detection is required during the concrete slab purchasing process, the existing concrete slabs detect a small section of the concrete slab during the detection process, but cannot detect one concrete slab comprehensively, so that the concrete slab detection is not uniform, and the concrete slabs with material loss due to work stealing flow into the society, so that the immeasurable loss is caused.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides a hardness detection device for concrete slab has solved the problem mentioned in the above background art.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides a hardness detection device for concrete slab includes the base, the last fixed surface of base is connected with the box, the position sliding connection that the upper surface of base is located both sides around the box has the U-shaped frame, the box is located the inside of U-shaped frame, the upper wall of U-shaped frame is pegged graft and is had hydraulic lifting cylinder, hydraulic lifting cylinder is located the inside one end fixedly connected with telescopic link of U-shaped frame, the inside one end fixedly connected with clamp plate of hydraulic lifting cylinder is kept away from to the telescopic link.

Two threaded rods and a rotating shaft are inserted into the left inner wall and the right inner wall of the box body respectively, the rotating shaft is positioned between the two threaded rods, the outer surface of each threaded rod is sleeved with two threaded sleeves, a slave bevel gear is sleeved at the position of the threaded rod on the right side of the thread, a main bevel gear is sleeved on the outer surface of the rotating shaft and is meshed with the slave bevel gear, one end of the rotating shaft positioned outside the box body is fixedly connected with a motor, the upper surfaces of the threaded sleeves on the left side and the right side are fixedly connected with connecting blocks, a first chute is arranged at the position of the upper surface of the box body positioned on the connecting blocks, the connecting blocks are connected with the first chute in a sliding manner, the upper surfaces of the two connecting blocks are fixedly connected with L-shaped plates, threaded columns are inserted into the upper surfaces of the L-shaped plates, the lower surface of the L-shaped plate is fixedly connected with sliding blocks at the positions of two sides of the box body, the box body is located at the position of the sliding blocks and provided with second sliding grooves, the sliding blocks are connected with the second sliding grooves in a sliding mode, and through holes are formed in the positions, located on the L-shaped plate, of two side walls of the U-shaped frame.

Preferably, one end of the sliding block, which is located inside the second sliding groove, is fixedly connected with a clamping column, and the clamping column is connected with the second sliding groove in a sliding manner.

Preferably, the length of the through hole is equal to the sum of the length of the L-shaped plate and the length of the slider.

Preferably, the first sliding groove and the second sliding groove have the same length, and the first sliding groove is perpendicular to the second sliding groove.

Preferably, the lower surface of the L-shaped plate is in contact with but not connected to the upper surface of the box body, and the upper surface of the L-shaped plate and the inner top wall of the through hole are located on the same horizontal plane.

Preferably, the nut is in the shape of a hexagonal prism, and the edge of the hexagonal prism is perpendicular to the ground.

(III) advantageous effects

The utility model provides a hardness detection device for concrete slab. The method has the following beneficial effects:

1. this a hardness detection device for concrete slab, through opening the motor, thereby make the rotation axis rotate, thereby make main bevel gear drive from bevel gear rotation, thereby make the threaded rod rotate and make the thread bush move to the direction in centre, thereby can fix concrete slab, then swivel nut, thereby make the screw thread post rotate, thereby can make the fixed plate downstream, thereby make the fixed plate fix the concrete slab once more, then control hydraulic lifting cylinder downstream, thereby can make the telescopic link drive the platen downstream, thereby can judge concrete slab's hardness according to concrete slab's destruction degree, thereby can prevent the defective products society of flowing out, in order to avoid causing the loss that can not estimate.

2. This a hardness detection device for concrete slab through slider and card post to can prevent that the slider from breaking away from the second spout, also can effectually prevent simultaneously that the clearance of L shaped plate and box is too big, thereby the influence that causes is great, sets up U-shaped frame and through-hole simultaneously, thereby can make L shaped plate and slider remove more convenient, thereby can not lead to the fact the influence to U-shaped frame.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic view of the bottom view structure of the present invention;

FIG. 3 is a schematic side view of the present invention;

fig. 4 is an enlarged schematic view of a portion a in fig. 3 according to the present invention.

The device comprises a base 1, a box 2, a 3U-shaped frame, a 4 telescopic rod, a 5 hydraulic lifting cylinder, a 6 pressing plate, a 7 motor, an 8 threaded rod, a 9 threaded sleeve, a 10 rotating shaft, a 11 slave bevel gear, a 12 main bevel gear, a 13 connecting block, a 14L-shaped plate, a 15 nut, a 16 threaded column, a 17 fixing plate, an 18 sliding block, a 19 through hole, a 20 first sliding groove, a 21 second sliding groove and a 22 clamping column.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The embodiment of the utility model provides a hardness detection device for concrete slab, as shown in figure 1-4, including a base 1, the upper surface of the base 1 is fixedly connected with a box body 2, the positions of the upper surface of the base 1 at the front and back sides of the box body 2 are connected with a U-shaped frame 3 in a sliding way, the position of the base 1 at the U-shaped frame 3 is provided with a chute, the upper wall of the U-shaped frame 3 is inserted with a hydraulic lifting cylinder 5, one end of the hydraulic lifting cylinder 5 in the U-shaped frame 3 is fixedly connected with a telescopic rod 4, one end of the telescopic rod 4 far away from the hydraulic lifting cylinder 5 is fixedly connected with a pressing plate 6, the pressing plate 6 is arranged to press the concrete slab, thereby the hardness of the concrete slab can be judged, two threaded rods 8 and a rotating shaft 10 are inserted in the left and right inner walls of the box body 2, the left and right sides of the part, the rotating shaft 10 is positioned between the two threaded rods 8, the outer surface of each threaded rod 8 is sleeved with two threaded sleeves 9, the threaded rods 8 rotate to enable the threaded sleeves 9 to move left and right, the positions, on the right sides of the threads, of the threaded rods 8 are sleeved with the slave bevel gears 11, the outer surfaces of the rotating shafts 10 are sleeved with the master bevel gears 12, the master bevel gears 12 are meshed with the slave bevel gears 11, the master bevel gears 12 drive the slave bevel gears 11 to rotate, so that the threaded rods 8 can rotate, one ends, located outside the box body 2, of the rotating shafts 10 are fixedly connected with the motor 7, the rotating shafts 10 are arranged to rotate, the upper surfaces of the threaded sleeves 9 are fixedly connected with the connecting blocks 13, the upper surfaces of the box body 2 are provided with the first sliding grooves 20 at the positions, the first sliding grooves 20 are arranged, so that the connecting blocks 13 can move left and right conveniently, the upper surfaces of the two connecting blocks 13 are fixedly connected with an L-shaped plate 14, a threaded column 16 is inserted in the upper surface of the L-shaped plate 14, a nut 15 is fixedly connected to one end, located above the L-shaped plate 14, of the threaded column 16, a fixing plate 17 is fixedly connected to one end, located below the L-shaped plate 14, of the threaded column 16, the fixing plate 17 is arranged, so that a concrete plate can be fixed, sliders 18 are fixedly connected to the lower surfaces of the L-shaped plate 14, located on the two sides of the box body 2, second sliding grooves 21 are formed in the positions, located on the sliders 18, of the box body 2, the second sliding grooves 21 are arranged, so that the sliders 18 can move left and right conveniently, the sliders 18 are connected with the second sliding grooves 21 in a sliding mode, through holes 19 are formed in the positions, located on the L-shaped plate 14, of the, and the clamping column 22 is connected with the second sliding groove 21 in a sliding manner, so that the sliding block 18 can be prevented from being separated from the second sliding groove 21, the length of the upper part and the lower part of the through hole 19 is equal to the sum of the length of the upper part and the lower part of the L-shaped plate 14 and the length of the upper part and the lower part of the sliding block 18, so that the L-shaped plate 14 and the sliding block 18 can move conveniently, the length of the first sliding groove 20 is equal to that of the second sliding groove 21, the first sliding groove 20 is perpendicular to the second sliding groove 21, the moving distance of the sliding block 18 and the moving distance of the connecting block 13 are equal, the lower surface of the L-shaped plate 14 is in contact with but not connected with the upper surface of the box body 2, the upper surface of the L-shaped plate 14 and the inner top wall of the through hole 19 are.

The working principle is as follows: in the hardness testing device for the concrete slab, the motor 7 is turned on to rotate the rotating shaft 10, so that the main bevel gear 12 drives the auxiliary bevel gear 11 to rotate, so that the threaded rod 8 rotates to move the threaded sleeve 9 towards the middle direction, so that the concrete slab can be fixed, then the nut 15 rotates, so that the threaded column 16 rotates, so that the fixed plate 17 moves downwards, so that the fixed plate 17 fixes the concrete slab again, then the hydraulic lifting cylinder 5 is controlled to move downwards, so that the telescopic rod 4 drives the pressing plate 6 to move downwards, so that the hardness of the concrete slab can be judged according to the damage degree of the concrete slab, so that the defective products can be prevented from flowing out of the society, so as to avoid the unpredictable loss, the sliding block 18 can be prevented from being separated from the second sliding chute 21 through the sliding block 18 and the clamping column 22, and the gap between the L-shaped plate 14 and the box body 2 can be effectively prevented from being too large, thereby causing a large influence, and the U-shaped frame 3 and the through-hole 19 are provided at the same time, so that the L-shaped plate 14 and the slider 18 can be moved conveniently, thereby causing no influence on the U-shaped frame 3.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A hardness testing device for concrete slab, includes base (1), its characterized in that: the upper surface of the base (1) is fixedly connected with a box body (2), the positions, located on the front side and the rear side of the box body (2), of the upper surface of the base (1) are connected with U-shaped frames (3) in a sliding mode, the box body (2) is located inside the U-shaped frames (3), the upper wall of each U-shaped frame (3) is connected with a hydraulic lifting cylinder (5) in an inserting mode, one end, located inside each U-shaped frame (3), of each hydraulic lifting cylinder (5) is fixedly connected with an expansion rod (4), and one end, far away from the inside of each hydraulic lifting cylinder (5), of each expansion rod (4);

the left inner wall and the right inner wall of the box body (2) are inserted with two threaded rods (8) and a rotating shaft (10), the rotating shaft (10) is positioned between the two threaded rods (8), the outer surface of each threaded rod (8) is sleeved with two threaded sleeves (9), the position of the threaded rod (8) on the right side of the thread is sleeved with a secondary bevel gear (11), the outer surface of the rotating shaft (10) is sleeved with a primary bevel gear (12), the primary bevel gear (12) is meshed with the secondary bevel gear (11), one end of the rotating shaft (10) positioned outside the box body (2) is fixedly connected with a motor (7), the upper surfaces of the threaded sleeves (9) on the left side and the right side are fixedly connected with connecting blocks (13), the position of the upper surface of the box body (2) on the connecting blocks (13) is provided with a first chute (20), the connecting blocks (13) are slidably connected with the first chute (20), the upper surfaces of the two connecting blocks (, the upper surface of L shaped plate (14) is pegged graft and is had screw thread post (16), screw thread post (16) are located one end fixedly connected with nut (15) of L shaped plate (14) top, screw thread post (16) are located one end fixedly connected with fixed plate (17) of L shaped plate (14) below, the lower surface of L shaped plate (14) is located position fixedly connected with slider (18) of box (2) both sides, second spout (21) have been seted up to the position that box (2) are located slider (18), and slider (18) and second spout (21) sliding connection, through-hole (19) have been seted up to the position that the both sides wall of U-shaped frame (3) is located L shaped plate (14).

2. A hardness testing apparatus for concrete slabs according to claim 1 wherein: the slider (18) is located the inside one end fixedly connected with card post (22) of second spout (21), and card post (22) and second spout (21) sliding connection.

3. A hardness testing apparatus for concrete slabs according to claim 1 wherein: the length of the through hole (19) is equal to the sum of the length of the L-shaped plate (14) and the length of the sliding block (18).

4. A hardness testing apparatus for concrete slabs according to claim 1 wherein: the lengths of the first sliding chute (20) and the second sliding chute (21) are equal, and the first sliding chute (20) is perpendicular to the second sliding chute (21).

5. A hardness testing apparatus for concrete slabs according to claim 1 wherein: the lower surface of the L-shaped plate (14) is in contact with but not connected with the upper surface of the box body (2), and the upper surface of the L-shaped plate (14) and the inner top wall of the through hole (19) are positioned on the same horizontal plane.

6. A hardness testing apparatus for concrete slabs according to claim 1 wherein: the nut (15) is in the shape of a hexagonal prism, and the edge of the hexagonal prism is perpendicular to the ground.