CN214096942U

CN214096942U - Strength detection device of construction steel bar

Info

Publication number: CN214096942U
Application number: CN202023204628.3U
Authority: CN
Inventors: 杨胜平; 李锦智; 张梓洪
Original assignee: Guangdong Baida Testing Technology Service Co ltd
Current assignee: Guangdong Baida Testing Technology Service Co ltd
Priority date: 2020-12-26
Filing date: 2020-12-26
Publication date: 2021-08-31
Anticipated expiration: 2030-12-26

Abstract

The application relates to a strength detection device of a construction steel bar, which comprises two clamping assemblies and a jacking assembly, wherein the two clamping assemblies are respectively used for clamping the head end and the tail end of the steel bar; the jacking assembly comprises a jack and a pressure head, the pressure head is arranged at the top of the jack and comprises a jacking portion and a pressure sensing portion, the pressure sensing portion is provided with a pressure sensor to generate a sensing signal when the pressure sensing portion receives pressure, the pressure sensor is electrically connected with a controller to transmit the sensing signal to the controller, and the controller is electrically connected with the jack to control the jack to stop working when the sensing signal reaches a set value. This application has the effect that improves the efficiency of reinforcing bar intensity detection work.

Description

Strength detection device of construction steel bar

Technical Field

The application relates to the technical field of reinforcing steel bar strength detection, in particular to a strength detection device for construction reinforcing steel bars.

Background

Reinforcing steel bars (rebars) are steel materials for reinforced concrete and prestressed reinforced concrete, and have a circular cross section, and sometimes a square cross section with rounded corners. Comprises plain round steel bars, ribbed steel bars and twisted steel bars. The reinforcing bar needs to carry out intensity detection before the input use, the intensity detection of reinforcing bar needs to use reinforcing bar intensity detection device, chinese patent that the grant bulletin number is CN211784829U discloses a reinforcing bar intensity detection device for building material, it includes the briquetting, the front of briquetting is link up there is the round hole, the top sliding connection of briquetting has the pole setting, the bottom joint of briquetting has the platform, the bottom of platform is provided with the box, the internally mounted of box has the hydraulic pump, the side-mounting of box has the display, when carrying out reinforcing bar intensity detection, the hydraulic stem of hydraulic pump will upwards promote, drive the briquetting and upwards slide, make the reinforcing bar take place the inflection and the bending, when rising to suitable height and reaching the shear strength critical point of reinforcing bar up to the briquetting, the reinforcing bar breaks, just so, the testing process has been accomplished.

In the above-mentioned patent, when detecting reinforcing bar intensity at every turn, need break the reinforcing bar, it is long that it takes time, especially when carrying out batch inspection, and the efficiency of detection is lower.

In view of the above-mentioned related art, the inventor believes that the strength detection device for the reinforcing steel bar has a defect of low detection efficiency.

SUMMERY OF THE UTILITY MODEL

In order to improve the efficiency of reinforcing bar intensity detection work, this application provides a construction steel bar's intensity detection device.

The application provides a strength detection device of construction steel bar adopts following technical scheme:

the strength detection device for the construction steel bars comprises two clamping assemblies and a jacking assembly, wherein the two clamping assemblies are respectively used for clamping the head end and the tail end of the steel bar; the jacking assembly comprises a jack and a pressure head, the pressure head is arranged at the top of the jack and comprises a jacking portion and a pressure sensing portion, the pressure sensing portion is provided with a pressure sensor to generate a sensing signal when the pressure sensing portion receives pressure, the pressure sensor is electrically connected with a controller to transmit the sensing signal to the controller, and the controller is electrically connected with the jack to control the jack to stop working when the sensing signal reaches a set value.

Through adopting above-mentioned technical scheme, when carrying out intensity detection to the reinforcing bar, the both ends of two subassemblies centre gripping reinforcing bar respectively are in order to stabilize the centre gripping with the reinforcing bar, set for the numerical value of controller. The jack upwards promotes the pressure head, and ascending pressure is applyed to the reinforcing bar middle part to the pressure head, and the pressure sensing portion of pressure head produces the internal stress, and pressure sensor produces the sensing signal and transmits sensing signal to the controller, and when the sensing signal that the controller received reached and set for numerical value, the controller control jack stopped the promotion to the pressure head. At the moment, if the steel bar is broken, the strength of the steel bar does not meet the detection requirement, and if the steel bar is not broken, the strength of the steel bar meets the detection requirement. The detection mode does not need to completely press the broken steel bars for data comparison, and the detection efficiency of the strength of the steel bars is improved.

Optionally, the top surface of the jack is fixedly provided with a cushion block, and the pressure head is arranged on the top surface of the cushion block.

Through adopting above-mentioned technical scheme, the top surface of jack is fixed to be set up the cushion, and the cushion can receive the pressure dispersion that comes from the pressure head with the jack, avoids producing too concentrated stress between jack and the pressure head and makes the pressure head take place the condition of lateral displacement, improves the stability of jack to pressure head drive effect.

Optionally, a guide rod is fixedly arranged at the bottom of the pressing portion, a yielding hole is formed in the pressing portion, a guide hole is formed in the cushion block, and the guide rod penetrates through the yielding hole and then is inserted into the guide hole and is in sliding fit with the guide hole.

Through adopting above-mentioned technical scheme, the guide bar pass after stepping down the hole insert in the guide hole and with guide hole sliding fit, on the one hand, the guide bar is pegged graft with the guide hole, make the relative position relation of top splenium and jack more stable, the pressure head is difficult for taking place lateral displacement, the pressure head receives the promotion effect of jack more stable, guide bar and guide hole sliding fit, when pressure sensing portion produces elastic deformation, top pressure portion receives the limiting displacement and the stable in position of guide hole, further improve the pressure head in motion process bulk state's stability.

Optionally, the clamping assembly comprises a clamping table and a clamping piece, the clamping table is provided with a clamping hole, and the clamping piece clamps the end portion of the steel bar in the clamping hole.

Through adopting above-mentioned technical scheme, the holder is fixed with the reinforcing bar tip centre gripping in order to fix the reinforcing bar centre gripping in the centre gripping hole, and is stable to the fixed effect of reinforcing bar.

Optionally, the clamping piece includes a screw rod and a hand wheel, the hand wheel is fixed to one end of the screw rod, the clamping table is provided with a threaded hole communicated with the clamping hole, the screw rod is in threaded fit with the threaded hole of the clamping table, and the end of the screw rod presses the reinforcing steel bar against the hole wall of the clamping hole.

Through adopting above-mentioned technical scheme, exert the moment of torsion and can rotate the screw rod to the hand wheel, the screw rod makes the screw rod remove in order to support the reinforcing bar in the pore wall of centre gripping hole with the screw thread fit effect of centre gripping platform, and is stable to the fixed effect of reinforcing bar to easy and simple to handle.

Optionally, a fastening groove is formed in the hole wall of the clamping hole, and the screw presses and fixes the reinforcing steel bar in the fastening groove.

Through adopting above-mentioned technical scheme, the screw rod supports the pressure with the reinforcing bar and is fixed in the fastening groove, and when the reinforcing bar supported the pressure and inserted in the fastening groove by the screw rod, the reinforcing bar produced deformation and the part inserts in the fastening groove, becomes frictional force and the combined action of pressure by simple frictional force to the fixed effort of reinforcing bar for the fixed effect of reinforcing bar is better.

Optionally, one end of the screw rod, which is far away from the hand wheel, is fixedly provided with an elastic pressing block, and the pressing block presses against the steel bar and generates elastic deformation.

Through adopting above-mentioned technical scheme, the briquetting is supported and is pressed in the reinforcing bar and produce elastic deformation, will turn into elastic pressure to the rigidity pressure of reinforcing bar from this for the centre gripping of reinforcing bar is fixed to be difficult for producing not hard up, improves the fixed effect of centre gripping to the reinforcing bar.

Optionally, a bottom plate is arranged at the bottom of the clamping table and fixed to the ground through screws.

Through adopting above-mentioned technical scheme, bottom plate screw fixation in bottom surface for the position state of centre gripping platform is more stable, reduces the condition that the centre gripping platform takes place the displacement in reinforcing bar strength test process, makes the testing effect and the testing process of reinforcing bar strength more stable.

In summary, the present application includes at least one of the following beneficial technical effects:

1. when the strength of the steel bar is detected, the two assemblies respectively clamp two ends of the steel bar to stably clamp the steel bar, the numerical value of the controller is set, the jack pushes the pressure head upwards, the pressure head applies upward pressure to the middle of the steel bar, the pressure sensing part of the pressure head generates internal stress, the pressure sensor generates sensing signals and transmits the sensing signals to the controller, when the sensing signals received by the controller reach the set numerical value, the controller controls the jack to stop pushing the pressure head, when the jack stops acting, if the steel bar is broken, the strength of the steel bar does not reach the detection requirement, if the steel bar is not broken, the strength of the steel bar reaches the detection requirement, the detection mode does not need to compare data after the steel bar is completely broken, and the detection efficiency of the strength of the steel bar is improved;

2. the guide rod penetrates through the abdicating hole and then is inserted into the guide hole and is in sliding fit with the guide hole, on one hand, the guide rod is inserted into the guide hole, so that the relative position relation between the jacking portion and the jack is more stable, the pressure head is not easy to generate transverse displacement, the pushing effect of the pressure head by the jack is more stable, the guide rod is in sliding fit with the guide hole, and when the pressure sensing portion generates elastic deformation, the jacking portion is limited by the guide hole, so that the position is stable;

3. the clamping piece is fixed with the reinforcing bar centre gripping in order to fix the reinforcing bar centre gripping in the centre gripping hole, and the screw rod supports the reinforcing bar to press to be fixed in the fastening groove, and when the reinforcing bar received the screw rod to press and insert the fastening groove, the reinforcing bar produced deformation and the part inserts the fastening groove in, becomes frictional force and the combined action of pressure by simple frictional force to the fixed effort of reinforcing bar for the fixed effect of reinforcing bar is better.

Drawings

Fig. 1 is an overall structural view of an embodiment of the present application.

Fig. 2 is a formal drawing of the pressing member in the embodiment of the present application.

Fig. 3 is a sectional view taken along line a-a of fig. 2.

Description of reference numerals: 11. a clamping table; 111. a clamping hole; 112. a fastening groove; 113. a base plate; 12. a clamping member; 121. a screw; 122. a pressing block; 123. a hand wheel; 2. a jacking component; 21. a jack; 22. cushion blocks; 221. a guide hole; 23. a pressure head; 231. a jacking portion; 2311. a guide bar; 232. a pressure sensing part; 2321. and (4) a yielding hole.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses construction steel bar's intensity detection device, refer to fig. 1, including bottom plate 113, centre gripping subassembly and roof pressure subassembly 2, bottom plate 113 is rectangular plate-like, and the through-hole has been seted up to bottom plate 113's four corners position department, and bottom plate 113 is fixed in ground through the screw in the through-hole position department in four corners. The two clamping assemblies are respectively and fixedly arranged at two ends of the bottom plate 113 in the length direction, and the jacking assembly 2 is fixedly arranged in the middle of the bottom plate 113 in the length direction. When carrying out reinforcing bar intensity detection, be fixed in a centre gripping subassembly with the one end of reinforcing bar and be fixed in another centre gripping subassembly with the other end of reinforcing bar, through the roof pressure subassembly 2 between two centre gripping subassemblies to the reinforcing bar application of force in order to carry out intensity detection.

Referring to fig. 1, the clamping assembly includes a clamping table 11 and a clamping member 12, the clamping table 11 is provided with a clamping hole 111, the clamping hole 111 horizontally penetrates through the clamping table 11, an axial direction of the clamping hole 111 is identical to a length direction of the bottom plate 113, and axes of the two clamping holes 111 are overlapped with each other. The clamping table 11 is further provided with a threaded hole, the axis of the threaded hole of the clamping table 11 is perpendicular to the axis of the clamping hole 111, and the threaded hole of the clamping table 11 is communicated with the clamping hole 111. The clamping member 12 includes a screw rod 121 and a hand wheel 123, the screw rod 121 is inserted into the threaded hole of the clamping table 11 and is in threaded fit with the threaded hole of the clamping table 11, one end of the screw rod 121 is located in the clamping hole 111, the other end of the screw rod 121 is located outside the clamping hole 111, a pressing block 122 is fixedly arranged at one end of the screw rod 121 located in the clamping hole 111, and the pressing block 122 is made of an elastic material. When clamping the steel bar, the pressing block 122 presses against the steel bar, and the pressing block 122 can generate elastic deformation and maintain elastic stress, so that the clamping effect on the steel bar is stable. The hand wheel 123 is fixed at one end of the screw rod 121 outside the clamping hole 111, and the hand wheel 123 and the screw rod 121 are coaxially fixed. Fastening groove 112 has still been seted up to the pore wall of centre gripping hole 111, and the axis of fastening groove 112 and the coincidence of the screw hole of centre gripping platform 11, screw rod 121 can be with the reinforcing bar support to press be fixed in fastening groove 112.

Referring to fig. 2 and 3, the pressing assembly 2 includes a jack 21, a pad 22 and a pressing head 23, the pad 22 is disposed on the top of the jack 21, and the pressing head 23 is disposed on the top of the pad 22. The contour of cushion 22 is unanimous with the contour at jack 21 top, and the counter sink has been seted up at cushion 22 edge, and the top of jack 21 has seted up the screw hole, and the counter sink of cushion 22 equals and the position one-to-one setting with the screw hole quantity of jack 21, and cushion 22 is fixed in jack 21 through the screw in counter sink and the screw hole department that corresponds. The end is in the shape of a horizontally placed triangular prism, and one edge of the end faces upwards to apply pressure to the steel bar. The tip comprises a pressing part 231 and a pressure sensing part 232 from top to bottom in sequence, the pressing part 231 is made of rigid material, and the pressure sensing part 232 is made of elastic material. The bottom surface of the top pressing part 231 is fixedly provided with a guide rod 2311, the pressure sensing part 232 is provided with a yielding hole 2321, and the yielding holes 2321 are equal in number to the guide rods 2311 and are arranged in a one-to-one corresponding mode. The cushion block 22 is provided with guide holes 221, the number of the guide holes 221 is equal to that of the guide rods 2311, the guide rods 2311 are arranged in a one-to-one correspondence manner, and the guide rods 2311 penetrate through the abdicating holes 2321 at the corresponding positions and then are inserted into the guide holes 221 at the corresponding positions and are in sliding fit with the corresponding guide holes 221. In this embodiment, it is preferable that the length of the guide bar 2311 is greater than the length of the abdicating hole 2321, and the length of the guide bar 2311 is less than the sum of the length of the abdicating hole 2321 and the length of the guide hole 221. The pressure sensing part 232 is provided with a pressure sensor to generate a sensing signal when the pressure sensing part 232 receives pressure, the pressure sensor is electrically connected with a controller to transmit the sensing signal to the controller, and the controller is electrically connected with the jack 21 to control the jack 21 to stop working when the sensing signal reaches a set value. Whether the strength of the steel bar is qualified or not is judged by observing whether the steel bar is broken or not.

The implementation principle of the strength detection device of the construction steel bar in the embodiment of the application is as follows: when intensity detection is carried out on the reinforcing steel bar, firstly, the two ends of the reinforcing steel bar are respectively fixed on the two clamping tables 11 through the clamping pieces 12, the numerical value of the controller is set, the pressure head 23 is upwards pushed by the jack 21, upward pressure is applied to the middle part of the reinforcing steel bar by the pressure head 23, the pressure sensing part 232 of the pressure head 23 generates internal stress, the pressure sensor generates sensing signals and transmits the sensing signals to the controller, and when the sensing signals received by the controller reach the set numerical value, the controller controls the jack 21 to stop pushing the pressure head 23. When the jack 21 stops working, the steel bar is observed, at the moment, if the steel bar is disconnected, the strength of the steel bar does not reach the detection requirement, and if the steel bar is not disconnected, the strength of the steel bar reaches the detection requirement. The detection mode does not need to completely press the broken steel bars for data comparison, and the detection efficiency of the strength of the steel bars is improved.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a construction steel bar's intensity detection device which characterized in that: the steel bar clamping device comprises two clamping assemblies and two jacking assemblies (2), wherein the two clamping assemblies are respectively used for clamping the head end and the tail end of a steel bar, the jacking assembly (2) is arranged between the two clamping assemblies, and the jacking assembly (2) jacks the steel bars clamped by the two clamping assemblies;

the jacking assembly (2) comprises a jack (21) and a pressure head (23), wherein the pressure head (23) is arranged at the top of the jack (21), the pressure head (23) comprises a jacking portion (231) and a pressure sensing portion (232), the pressure sensing portion (232) is provided with a pressure sensor to generate a sensing signal when the pressure sensing portion (232) receives pressure, the pressure sensor is electrically connected with a controller to transmit the sensing signal to the controller, and the controller is electrically connected with the jack (21) to control the jack (21) to stop working when the sensing signal reaches a set value.

2. The strength detecting device of a construction steel bar according to claim 1, wherein: the top surface of the jack (21) is fixedly provided with a cushion block (22), and the pressure head (23) is arranged on the top surface of the cushion block (22).

3. The strength detecting device of a construction steel bar according to claim 2, wherein: the bottom of the top pressing portion (231) is fixedly provided with a guide rod (2311), the pressure sensing portion (232) is provided with a yielding hole (2321), the cushion block (22) is provided with a guide hole (221), and the guide rod (2311) penetrates through the yielding hole (2321) and then is inserted into the guide hole (221) and is in sliding fit with the guide hole (221).

4. The strength detecting device of a construction steel bar according to claim 1, wherein: the clamping assembly comprises a clamping table (11) and a clamping piece (12), a clamping hole (111) is formed in the clamping table (11), and the end portion of the steel bar is clamped in the clamping hole (111) by the clamping piece (12).

5. The strength detecting device of a construction steel bar according to claim 4, wherein: the clamping piece (12) comprises a screw rod (121) and a hand wheel (123), the hand wheel (123) is fixed at one end of the screw rod (121), the clamping table (11) is provided with a threaded hole communicated with the clamping hole (111), the screw rod (121) is in threaded fit with the threaded hole of the clamping table (11), and the end of the screw rod (121) presses the reinforcing steel bar against the hole wall of the clamping hole (111).

6. The strength detecting device of a construction steel bar according to claim 5, wherein: the hole wall of the clamping hole (111) is provided with a fastening groove (112), and the screw (121) presses and fixes the reinforcing steel bar in the fastening groove (112).

7. The strength detecting device of a construction steel bar according to claim 5, wherein: one end of the screw rod (121) far away from the hand wheel (123) is fixedly provided with an elastic pressing block (122), and the pressing block (122) presses against the steel bar and generates elastic deformation.

8. The strength detecting device of a construction steel bar according to claim 4, wherein: the bottom of the clamping table (11) is provided with a bottom plate (113), and the bottom plate (113) is fixed on the ground through screws.