A prestressed steel bar cage tension detection device

Abstract

The utility model relates to building material detection technical field especially, it relates to a kind of prestressed reinforcement cage tension detection device, the utility model device design is reasonable, it is mainly by base, top seat, guide pillar, screw motor, screw, movable block, movable holder, fixed holder, feeding conveying assembly, material pushing rod and protection assembly constitute, each component cooperates, on the one hand, utilize feeding conveying assembly to batch storage reinforcing bar sample, and it is transferred to the place below the material feeding passage that base pre-drilled below in succession, and then utilize material pushing rod can push reinforcing bar sample downward displacement, into fixed holder through material feeding passage, realize batch feeding by this mode, it is beneficial to realize automatic continuous detection;On the other hand, utilize the lifting system of screw motor, screw and drive movable block vertical displacement along guide pillar, there is the protection assembly that can fold telescopic between movable block and base, provide effective protection for the operator of front side using protection assembly.

Description

Technical Field

[0001] This utility model relates to the field of building material testing technology, and in particular to a device for testing the tensile strength of prestressed steel cages. Background Technology

[0002] Drilled piles are a common type of foundation in civil engineering, with the prestressed steel cage being a crucial structural component that bears significant structural loads. To ensure the quality and reliability of the steel cage, a series of tests are required. Tensile testing is an important method for measuring the strength and ductility of the steel reinforcement within the cage. During testing, a sample of the steel reinforcement from the cage is stretched until it breaks. By observing the tensile force and elongation at fracture, the mechanical properties and quality of the steel reinforcement can be determined. This test helps ensure that the steel cage possesses sufficient strength and toughness when subjected to tensile forces.

[0003] For the steel bar samples of prestressed steel cages, the existing prestressed steel cage tensile testing device has been found to have shortcomings during use. First, it cannot achieve batch feeding, which is not conducive to achieving automated continuous testing. Second, it lacks protective components, and the steel bars may break after being stretched to a certain extent. When the material breaks, it is easy to splash and cause danger to the operators in front.

[0004] Therefore, it is necessary to optimize and improve the existing prestressed steel cage tension testing device. Summary of the Invention

[0005] The purpose of this invention is to overcome the aforementioned problems in traditional technologies and to provide a device for detecting the tensile force of prestressed steel cages.

[0006] To achieve the above-mentioned technical objectives and effects, this utility model is implemented through the following technical solution:

[0007] A prestressed steel cage tensile testing device includes a base, a top seat, guide columns, a screw motor, a screw, a movable block, a movable clamp, a fixed clamp, a feeding conveyor assembly, a top push rod, and a protective assembly. Guide columns are connected between the four corners of the base and the top seat. A screw motor is symmetrically mounted on the upper side of the top seat, and a screw is mounted on the output end of the screw motor. A movable block is fitted around the outer side of the screw and guide columns. A movable clamp is mounted on the lower side of the movable block. A fixed clamp is mounted on the upper end of the top seat, directly below the movable clamp. The clamp has a feeding conveyor assembly installed on the upper part of the base. The area of ​​the feeding conveyor assembly that protrudes from the base serves as the rebar insertion area. The base has a top material channel located directly below the fixed clamp. The feeding conveyor assembly can sequentially convey the rebar samples to the area directly below the top material channel. A top material pusher is installed on the lower part of the base. The movable rod of the top material pusher extends out and can push the rebar samples above into the fixed clamp through the top material channel. A foldable and retractable protective assembly is connected between the movable block and the base.

[0008] Furthermore, in the above-mentioned prestressed steel cage tensile testing device, the movable clamp and the fixed clamp each include a clamping seat, the clamping seat has a clamping area inside, clamping push rods are embedded on both sides of the clamping area, and clamping claws are installed on the movable end of the clamping push rods.

[0009] Furthermore, in the aforementioned prestressed steel cage tensile testing device, the clamping seat of the fixed clamp is provided with a material guiding channel on the bottom surface of the clamping area. The bottom end of the material guiding channel is connected to the top end of the top material channel. A ring of top ball plungers is installed circumferentially on the inner wall of the material guiding channel. Under the downward pushing action, the steel sample can press against the ball of the top ball plunger and enter the material guiding channel above the top ball plunger. Then, the bottom end of the steel sample is supported by the ball that has been reset in the top ball plunger.

[0010] Furthermore, in the above-mentioned prestressed steel cage tensile testing device, the feeding and conveying assembly includes two parallel circulating conveyor belts. Each circulating conveyor belt has a clamping belt fixedly fitted on its outer side. The clamping belt has several clamping grooves evenly distributed on it. The opposing clamping grooves in the two circulating conveyor belts are used to clamp and convey the steel bar sample together.

[0011] Furthermore, in the aforementioned prestressed steel cage tensile testing device, the base is provided with an movable groove to facilitate the movement of the circulating conveyor belt and clamping belt in the feeding and conveying assembly. The feeding and conveying assembly is equipped with a material support box at the lower edge of the opening of the movable groove. The material support box contains a conveying motor for driving the drive shafts in the circulating conveyor belt to rotate in opposite directions.

[0012] Furthermore, in the above-mentioned prestressed steel cage tensile testing device, the depth value of the movable groove is matched with the height value of the steel sample, and the top material channel is connected to the movable groove.

[0013] Furthermore, in the aforementioned prestressed steel cage tensile testing device, the protective component consists of a folded plate section, a straight plate section, and a slip ring. The upper and lower ends of the folded plate section are symmetrically connected to the straight plate section, and the two ends of the straight plate section are symmetrically fixed with slip rings sleeved on the outside of the guide column. The slip ring located on the lower layer is installed on the upper end of the base by magnetic attraction, and the slip ring located on the upper layer is installed on the lower end of the movable block by magnetic attraction.

[0014] Furthermore, in the aforementioned prestressed steel cage tensile testing device, the protective component is integrally made of transparent plastic material.

[0015] The beneficial effects of this utility model are:

[0016] This utility model device is rationally designed, mainly consisting of a base, top seat, guide column, lead screw motor, lead screw, movable block, movable clamp, fixed clamp, feeding conveyor assembly, top material push rod, and protective assembly. These components work together to: 1) use the feeding conveyor assembly to store steel bar samples in batches and transfer them one by one to the area below the pre-opened top material channel on the base; then, the top material push rod pushes the steel bar samples downwards through the top material channel into the fixed clamp, thus achieving batch feeding and facilitating automated continuous testing; 2) use a lifting system composed of a lead screw motor and lead screw to drive the movable block to move vertically along the guide column. A foldable and retractable protective assembly connects the movable block and the base, providing effective protection for the operator at the front.

[0017] Of course, any product implementing this utility model does not necessarily need to achieve all of the above advantages at the same time. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the structure of this utility model after omitting the protective components;

[0021] Figure 3 This is a schematic diagram of the internal structure of the base in this utility model;

[0022] Figure 4 This is a schematic diagram of the fixed clamp in this utility model;

[0023] Figure 5 This is a schematic diagram of the material feeding and conveying assembly in this utility model;

[0024] Figure 6 This is a schematic diagram of the protective component in this utility model;

[0025] In the attached diagram, the components represented by each number are as follows:

[0026] 1-Base, 2-Top seat, 3-Guide column, 4-Screw motor, 5-Screw, 6-Moving block, 7-Moving clamp, 8-Fixed clamp, 801-Clamping seat, 802-Clamping push rod, 803-Clamping claw, 804-Guide channel, 805-Top ball plunger, 9-Feeding conveyor assembly, 901-Circulating conveyor belt, 902-Clamping belt section, 903-Clamping groove, 904-Material tray, 10-Top material channel, 11-Top material push rod, 12-Protective assembly, 121-Folding plate section, 122-Straight plate section, 123-Slip ring. Detailed Implementation

[0027] 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. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0028] like Figures 1-6 As shown, this embodiment provides a prestressed steel cage tensile testing device, including a base 1, a top seat 2, a guide column 3, a screw motor 4, a screw 5, a movable block 6, a movable clamp 7, a fixed clamp 8, a feeding conveyor assembly 9, a top push rod 11, and a protective assembly 12.

[0029] In this embodiment, guide posts 3 are connected between the four corners of the base 1 and the top seat 2. A lead screw motor 4 is symmetrically installed on the upper side of the top seat 2. A lead screw 5 is installed at the output end of the lead screw motor 4. A movable block 6 is sleeved on the outer side of the lead screw 5 and the guide posts 3. A movable clamp 7 is installed on the lower side of the movable block 6. A fixed clamp 8 is installed on the upper end of the top seat 2 directly below the movable clamp 7.

[0030] In this embodiment, a feeding conveyor assembly 9 is installed on the upper part of the base 1, and the area protruding from the base 1 of the feeding conveyor assembly 9 serves as the rebar insertion area. A top material channel 10 is provided directly below the fixed clamp 8 on the base 1, and the feeding conveyor assembly 9 can sequentially convey the rebar samples to the area directly below the top material channel 10. A top material pusher 11 is installed on the lower part of the base 1, and the movable rod of the top material pusher 11 extends out, enabling it to push the rebar samples above into the fixed clamp 8 through the top material channel 10. A foldable and retractable protective assembly 12 connects the movable block 6 and the base 1.

[0031] In this embodiment, the movable clamp 7 and the fixed clamp 8 each include a clamping seat 801. The clamping seat 801 has a clamping area inside. Clamping push rods 802 are embedded on both sides of the clamping area. Clamping claws 803 are installed on the movable end of the clamping push rods 802.

[0032] In this embodiment, the clamping seat 801 of the fixed clamping device 8 is provided with a material guiding channel 804 on the bottom surface of the clamping area. The bottom end of the material guiding channel 804 is connected to the top end of the top material channel 10. A ring of top ball plungers 805 is installed circumferentially on the inner wall of the material guiding channel 804. Under the pushing action from below, the steel bar sample can press against the ball of the top ball plunger 805 and enter the material guiding channel 804 above the top ball plunger 805. Then, the bottom end of the steel bar sample is provided with bottom support by the ball that has been reset in the top ball plunger 805.

[0033] In this embodiment, the feeding and conveying assembly 9 includes two parallel circulating conveyor belts 901. Each circulating conveyor belt 901 has a clamping belt portion 902 fixedly sleeved on its outer side. The clamping belt portion 902 has a plurality of clamping grooves 903 evenly distributed on it. The clamping grooves 903 opposite to each other in the two circulating conveyor belts 901 are used to clamp and convey the steel bar sample.

[0034] In this embodiment, the base 1 is provided with an active groove to facilitate the movement of the circulating conveyor belt 901 and the clamping belt part 902 in the feeding and conveying assembly 9. The feeding and conveying assembly 9 is equipped with a material support box 904 at the lower edge of the opening of the active groove. The material support box 904 is equipped with a conveying motor for driving the drive shafts of the circulating conveyor belt 901 to rotate in opposite directions.

[0035] In this embodiment, the depth of the movable groove is matched with the height of the steel bar sample, and the top material channel 10 is connected to the movable groove.

[0036] In this embodiment, the protective component 12 is composed of a folding plate portion 121, a straight plate portion 122 and a slip ring 123. The upper and lower ends of the folding plate portion 121 are symmetrically connected to the straight plate portion 122. The two ends of the straight plate portion 122 are symmetrically fixed with slip rings 123 sleeved on the outside of the guide post 3. The lower slip ring 123 is installed on the upper end of the base 1 by magnetic attraction, and the upper slip ring 123 is installed on the lower end of the movable block 6 by magnetic attraction.

[0037] In this embodiment, the protective component 12 is integrally made of transparent plastic material.

[0038] A specific application of this embodiment is as follows: This device mainly consists of a base 1, a top seat 2, a guide column 3, a lead screw motor 4, a lead screw 5, a movable block 6, a movable clamp 7, a fixed clamp 8, a feeding conveyor assembly 9, a top material pusher 11, and a protective assembly 12. The components work together to: 1) use the feeding conveyor assembly 9 to store steel bar samples in batches and transfer them one by one to the area below the pre-opened top material channel 10 on the base 1. Then, the top material pusher 11 can push the steel bar samples downwards and into the fixed clamp 8 through the top material channel 10. This method achieves batch feeding, which is beneficial for automated continuous testing. 2) use the lifting system composed of the lead screw motor 4 and the lead screw 5 to drive the movable block 6 to move vertically along the guide column 3. A foldable and retractable protective assembly 12 is connected between the movable block 6 and the base 1, providing effective protection for the operator in front.

[0039] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to specific implementation methods. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A device for detecting the tensile force of a prestressed steel cage, characterized in that, The device includes a base, a top seat, guide pillars, a lead screw motor, a lead screw, a movable block, a movable clamp, a fixed clamp, a feeding conveyor assembly, a top material pusher, and a protective assembly. Guide pillars connect the four corners of the base and top seat. A lead screw motor is symmetrically mounted on the upper side of the top seat, with a lead screw mounted on the output end of the motor. A movable block is fitted around the outer side of the lead screw and guide pillars. A movable clamp is mounted on the lower side of the movable block. A fixed clamp is mounted on the upper end of the top seat, directly below the movable clamp. A feeding conveyor assembly is mounted on the upper part of the base, with its protruding area serving as a rebar insertion area. A top material channel is located directly below the fixed clamp on the base, allowing the feeding conveyor assembly to sequentially convey rebar samples to the area directly below the top material channel. A top material pusher is mounted on the lower part of the base, with its movable rod extending out to push the rebar sample above into the fixed clamp through the top material channel. A foldable and retractable protective assembly connects the movable block and the base.

2. The prestressed steel cage tensile testing device according to claim 1, characterized in that, The movable clamp and the fixed clamp each include a clamping seat, the clamping seat has a clamping area inside, and clamping push rods are embedded on both sides of the clamping area. Clamping claws are installed on the movable end of the clamping push rods.

3. The prestressed steel cage tensile testing device according to claim 2, characterized in that, The clamping seat of the fixed clamp is provided with a material guiding channel on the bottom surface of the clamping area. The bottom end of the material guiding channel is connected to the top end of the top material channel. A ring of top ball plungers is installed circumferentially on the inner wall of the material guiding channel. Under the pushing action from below, the steel bar sample can press against the ball of the top ball plunger and enter the material guiding channel above the top ball plunger. Then, the bottom end of the steel bar sample is supported by the ball that has been reset in the top ball plunger.

4. The prestressed steel cage tensile testing device according to claim 3, characterized in that, The feeding and conveying assembly includes two parallel circulating conveyor belts. Each circulating conveyor belt has a clamping belt fixedly fitted on its outer side. The clamping belt has several clamping grooves evenly distributed on it. The clamping grooves of the two circulating conveyor belts are used to clamp and convey the steel bar sample together.

5. The prestressed steel cage tensile testing device according to claim 4, characterized in that, The base has an active slot to facilitate the movement of the circulating conveyor belt and clamping belt in the feeding and conveying assembly. The feeding and conveying assembly has a material support box installed at the lower edge of the opening of the active slot. The material support box contains a conveying motor for driving the drive shafts of the circulating conveyor belt to rotate in opposite directions.

6. The prestressed steel cage tensile testing device according to claim 5, characterized in that, The depth of the movable groove is matched with the height of the steel bar sample, and the top material channel is connected to the movable groove.

7. The prestressed steel cage tensile testing device according to claim 6, characterized in that, The protective assembly consists of a folding plate, a straight plate, and slip rings. The upper and lower ends of the folding plate are symmetrically connected to the straight plate. Slip rings sleeved on the outside of the guide post are symmetrically fixed at both ends of the straight plate. The slip ring located on the lower layer is installed on the upper end of the base by magnetic attraction, and the slip ring located on the upper layer is installed on the lower end of the movable block by magnetic attraction.

8. The prestressed steel cage tensile testing device according to claim 7, characterized in that, The protective component is made of a single piece of transparent plastic material.

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