CN215179248U

CN215179248U - Device for detecting reinforcing steel bar anchoring force

Info

Publication number: CN215179248U
Application number: CN202121469608.0U
Authority: CN
Inventors: 姜文; 张拥民; 宋学鹏; 王明铁; 王春晖; 冯赟
Original assignee: Shanghai Heliu Engineering Supervision Co ltd
Current assignee: Shanghai Heliu Engineering Supervision Co ltd
Priority date: 2021-06-30
Filing date: 2021-06-30
Publication date: 2021-12-14
Anticipated expiration: 2031-06-30

Abstract

The utility model discloses a device for detecting reinforcing bar anchor power, including the mounting panel, be equipped with a plurality of dead levers on the mounting panel right side wall, there is the locating plate on the mounting panel right side through dead lever slidable mounting, it is equipped with the through-hole all to correspond on locating plate and the mounting panel, the transmission is connected with the pneumatic cylinder on the locating plate left side wall, pneumatic cylinder fixed mounting is on the mounting panel right side wall, be equipped with the clamping component who is used for the reinforcing bar location on the locating plate right side wall, clamping component includes the spacing guide arm through fixed plate fixed mounting on the mounting panel right side, the equal slidable mounting in the portion has the locating piece about the spacing guide arm, the equal threaded connection of locating piece lower extreme has two-way lead screw, two-way lead screw both ends are all rotated and are installed on the fixed plate, two-way lead screw tip is equipped with the turning block, turning block edge is equipped with the handle. The utility model discloses simple structure, it is easy and simple to handle, can carry out the solid power to each direction reinforcing bar anchor and detect, and be convenient for carry, transport, detection efficiency is high, the precision is high.

Description

Device for detecting reinforcing steel bar anchoring force

Technical Field

The utility model relates to a building detection instrument field especially relates to a device for detecting reinforcing bar anchor power.

Background

The steel bar in the reinforced concrete structure can be stressed, and the steel bar is mainly based on the bonding and anchoring effect between the steel bar and the concrete, so that the anchoring of the steel bar is the stressed foundation of the concrete structure. If the anchoring fails, the structure will lose its load-bearing capacity and thus cause structural failure. The anchorage of the reinforcing steel bars refers to the fact that the stressed reinforcing steel bars of the components such as beams, plates, columns and the like extend into the support or the foundation. The connecting reinforcement of infilled wall and bearing wall, post, roof beam when adopting the connected mode of chemistry bar planting, should carry out the entity and detect. The axial tension nondestructive bearing capacity test value of the anchoring steel bar drawing test is 6.0KN, and the base material of the random-inspection steel bar has no crack and the steel bar has no slippage and macroscopic crack phenomenon under the test value; the load value is reduced by not more than 5% during the load holding period of 2 min. The minimum sampling quantity of different tie bars is not less than 5 in the specification, namely the detection of the anchoring force of the planted bars is a necessary item.

However, the existing reinforcing steel bar anchoring force detection instrument usually realizes load increase for manual operation, and has the disadvantages of more complicated operation, low detection efficiency, larger size, heavier weight, inconvenience in carrying and certain defects.

Disclosure of Invention

An object of the utility model is to provide a device for detecting reinforcing bar anchor power, it is easy and simple to handle, carry out pulling force control automatically, improve detection efficiency, and simple structure, the transport of being convenient for reduce measurement personnel's physical demands.

The utility model discloses a realize like this:

a device for detecting the anchorage force of a reinforcing bar, comprising a mounting plate;

the mounting panel top is equipped with a plurality of dead levers, the top of mounting panel is passed through dead lever slidable mounting has the locating plate, the locating plate with all correspond on the mounting panel and be equipped with the through-hole, locating plate bottom transmission is connected with the pneumatic cylinder, pneumatic cylinder fixed mounting is in the mounting panel top, the top of locating plate is equipped with the clamping components who is used for the reinforcing bar location, clamping components includes through fixed plate fixed mounting the spacing guide arm at locating plate top, the equal slidable mounting in the portion has the locating piece about the spacing guide arm, the equal threaded connection of locating piece lower extreme has two-way lead screw, two-way lead screw both ends are all rotated and are installed on the fixed plate, two-way lead screw tip is equipped with the turning block, the turning block edge is equipped with the handle.

The bidirectional screw rod is provided with two screw rods with the same screw pitch and opposite rotation directions on the outer wall symmetrically.

The handle outer wall with the inside sliding connection of turning block, the handle is close to fixed plate one end is equipped with magnet, just the handle is close to fixed plate one end through the locating hole with the fixed plate outer wall is pegged graft, the locating hole uses two-way lead screw axis is the circumference distribution as the center, the locating hole inner wall all with magnet magnetic adsorption.

The middle part of the positioning block is in a semi-cylindrical shape, and anti-slip teeth are arranged on the contact surface of the middle part of the positioning block and the reinforcing steel bars.

The bottom of mounting panel is vertical to be equipped with a plurality of installation section of thick bamboo, the equal demountable installation in installation section of thick bamboo lower part has the bracing piece, the bracing piece with installation section of thick bamboo threaded connection.

The utility model has the advantages of reasonable design, overall structure is simple, and check out test set portable reduces measurement personnel's physical demands, and is convenient for press from both sides tight fixed to the reinforcing bar, presss from both sides tightly effectually to make things convenient for measurement personnel to detect the anchor power of reinforcing bar, guarantee the accuracy of testing result, improve detection efficiency.

Drawings

Fig. 1 is a schematic view of the external structure of the device for detecting the anchoring force of the reinforcing steel bar of the present invention;

fig. 2 is a schematic structural view of a clamping assembly of the device for detecting the anchoring force of the steel bar of the present invention;

FIG. 3 is a schematic view of the external structure of the positioning block of the device for detecting the anchoring force of the reinforcing steel bar of the present invention;

in the figure, 1, mounting plate; 2. fixing the rod; 3. positioning a plate; 4. a through hole; 5. a hydraulic cylinder; 6. a clamping assembly; 7. a fixing plate; 8. a limiting guide rod; 9. positioning blocks; 10. a bidirectional screw rod; 11. rotating the block; 12. a handle; 13. anti-slip teeth; 14. mounting the cylinder; 15. a support rod.

Detailed Description

The invention will be further explained with reference to the drawings and the specific embodiments.

Referring to fig. 1 to 3, a device for detecting the anchoring force of a reinforcing bar includes a mounting plate 1;

the top of the mounting plate 1 is provided with a plurality of fixed rods 2, a positioning plate 3 is slidably mounted above the mounting plate 1 through the fixed rods 2, the positioning plate 3 and the mounting plate 1 are both correspondingly provided with through holes 4, the bottom of the positioning plate 3 is connected with a hydraulic cylinder 5 in a transmission way, the hydraulic cylinder 5 is fixedly arranged at the top of the mounting plate 1, the top of the positioning plate 3 is provided with a clamping component 6 for positioning the reinforcing steel bar, the clamping assembly 6 comprises a limit guide rod 8 fixedly arranged at the top of the positioning plate 3 through a fixing plate 7, the left part and the right part of the limit guide rod 8 are both provided with a positioning block 9 in a sliding way, the lower end of the positioning block 9 is both connected with a bidirectional screw rod 10 in a threaded way, the two ends of the bidirectional screw rod 10 are rotatably mounted on the fixing plate 7, a rotating block 11 is arranged at the end of the bidirectional screw rod 10, and a handle 12 is arranged at the edge of the rotating block 11. In the embodiment, the horizontal thrust of the hydraulic cylinder 5 is greater than 6KN, firstly, the steel bar passes through the through holes 4 on the mounting plate 1 and the positioning plate 3, and is positioned between the two positioning blocks 9, the handle 12 is manually rotated, the rotating block 11 and the bidirectional screw rod 10 are rotated, the two positioning blocks 9 are moved by utilizing the screw rod principle, the steel bar is clamped and fixed, then the switch of the hydraulic cylinder 5 is opened, the plunger of the hydraulic cylinder 5 pushes the positioning plate 3 rightwards, the sensor for detecting the hydraulic pressure is connected inside the hydraulic cylinder 5, the plunger thrust is calculated, the detection of the tensile force of the steel bar is realized, the hydraulic pressure of the hydraulic cylinder 5 is increased, the tensile force of the steel bar reaches the detection standard, then the hydraulic pressure is kept stable for 2min, the detection of the load of the steel bar is realized by detecting the hydraulic pressure, when the load value is reduced by not more than 5% during holding the load for 2min, in order to meet the standard, the hydraulic pressure sensor is the prior art, and thus the detailed circuit is not described again.

The bidirectional screw rod 10 is provided with two screw rods symmetrically arranged on the outer wall, wherein the screw rods have the same screw pitch and opposite rotation directions. In the embodiment, the two positioning blocks 9 move oppositely through the rotation of the bidirectional screw rod 10 to clamp the reinforcing steel bar, so that the anchoring force of the reinforcing steel bar can be conveniently detected.

The outer wall of the handle 12 is connected with the inside of the rotating block 11 in a sliding mode, a magnet is arranged at one end, close to the fixing plate 7, of the handle 12, one end, close to the fixing plate 7, of the handle 12 is connected with the outer wall of the fixing plate 7 in an inserting mode through a positioning hole, the positioning hole is circumferentially distributed with the axis of the two-way screw rod 10 as the center, and the inner wall of the positioning hole is magnetically adsorbed by the magnet. In the embodiment, the magnet arranged at the end of the handle 12 is magnetically adsorbed to the inner wall of the positioning hole, so that the handle 12 is positioned, and the bidirectional screw rod 10 is prevented from rotating to keep clamping the reinforcing steel bars.

The middle part of the positioning block 9 is semi-cylindrical, and an anti-slip tooth 13 is arranged on the contact surface of the middle part of the positioning block 9 and the reinforcing steel bar. In this embodiment, when two locating pieces 9 move relatively and press from both sides the reinforcing bar tightly, through the setting of antiskid tooth 13, realize the antiskid function, be convenient for to the clamp of reinforcing bar.

The bottom of mounting panel 1 is vertical to be equipped with a plurality of installation section of thick bamboo 14, the equal demountable installation in installation section of thick bamboo 14 lower part has a bracing piece 15, bracing piece 15 and an installation section of thick bamboo 14 threaded connection, through twisting the length that this bracing piece 15 of twisting adjustable stretched into an installation section of thick bamboo 14 soon to the distance apart from the concrete surface of adjusting mounting panel 1 has been realized. The length of bracing piece 15 screw in installation section of thick bamboo 14 is adjusted as required, when detecting the reinforcing bar on the vertical wall, is convenient for support check out test set. And the bottom of mounting panel 1 is located to installation section of thick bamboo 14, lets the device not only can be used for detecting the reinforcing bar on the vertical face, can also be used for detecting the reinforcing bar on the horizontal plane, when detecting the reinforcing bar on the horizontal plane, can let bracing piece 15 prop up and locate on the concrete surface, and then exposes the support height that length comes adjustment bracing piece 15 and installation section of thick bamboo 14 through the reinforcing bar and in order to let the reinforcing bar that awaits measuring pass through-hole 4.

Furthermore, the hydraulic cylinders 5 are symmetrically arranged on two sides of the through hole 4, and pulling force with the direction consistent with the axial direction of the steel bar can be applied to the steel bar through the symmetrically arranged hydraulic cylinders 5.

When the device works, a steel bar penetrates through the through holes 4 on the mounting plate 1 and the positioning plate 3, the steel bar is kept to be vertical to the mounting plate 1 and the positioning plate 3, the steel bar is positioned between the two positioning blocks 9, the handle 12 is manually rotated to rotate the rotating block 11 and the bidirectional screw rod 10, the two positioning blocks 9 are moved by utilizing the screw rod principle to clamp and fix the steel bar, the anti-skidding teeth 13 are utilized to avoid the steel bar from skidding, the switch of the hydraulic cylinder 5 is opened, the plunger of the hydraulic cylinder 5 pushes the positioning plate 3 to the direction far away from the mounting plate 1, the sensor for detecting hydraulic pressure is connected inside the hydraulic cylinder 5 to calculate the thrust of the plunger, the detection of steel bar load is realized, the hydraulic pressure of the hydraulic cylinder 5 is increased to ensure that the tensile force of the steel bar reaches the detection standard, then the hydraulic pressure is kept stable for 2min, and when the attenuation degree of the load value is lower than 5 percent during holding 2min, the anchoring force of the steel bars is up to the standard.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the scope of the present invention, therefore, any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention should be included in the scope of the present invention.

Claims

1. A device for detecting the anchorage force of a reinforcing bar, comprising a mounting plate (1);

the method is characterized in that: the steel bar positioning device is characterized in that a plurality of fixing rods (2) are arranged at the top of the mounting plate (1), a positioning plate (3) is arranged above the mounting plate (1) through the fixing rods (2) in a sliding manner, through holes (4) are correspondingly formed in the positioning plate (3) and the mounting plate (1), a hydraulic cylinder (5) is connected to the bottom of the positioning plate (3) in a transmission manner, the hydraulic cylinder (5) is fixedly arranged at the top of the mounting plate (1), a clamping assembly (6) for positioning steel bars is arranged at the top of the positioning plate (3), the clamping assembly (6) comprises a limiting guide rod (8) fixedly arranged at the top of the positioning plate (3) through a fixing plate (7), positioning blocks (9) are arranged at the left part and the right part of the limiting guide rod (8) in a sliding manner, two-way lead screws (10) are connected to the lower ends of the positioning blocks (9) through threads, and the two-way lead screws (10) are rotatably arranged on the fixing plate (7), the bidirectional screw rod (10) is characterized in that a rotating block (11) is arranged at the end part of the bidirectional screw rod, and a handle (12) is arranged at the edge of the rotating block (11).

2. A device for sensing the anchorage force of reinforcing bars as claimed in claim 1, wherein: the bidirectional screw rod (10) is provided with two screw rods which are symmetrically arranged on the outer wall, have the same screw pitch and are opposite in rotation direction.

3. A device for sensing the anchorage force of reinforcing bars as claimed in claim 1, wherein: the outer wall of the handle (12) is connected with the inside of the rotating block (11) in a sliding mode, a magnet is arranged at one end, close to the fixed plate (7), of the handle (12), one end, close to the fixed plate (7), of the handle (12) is connected with the outer wall of the fixed plate (7) in an inserting mode through a positioning hole, the positioning hole is circumferentially distributed by taking the axis of the two-way screw rod (10) as the center, and the inner wall of the positioning hole is magnetically adsorbed by the magnet.

4. A device for sensing the anchorage force of reinforcing bars as claimed in claim 1, wherein: the middle part of the positioning block (9) is in a semi-cylindrical shape, and anti-skid teeth (13) are arranged on the contact surface of the middle part of the positioning block (9) and the reinforcing steel bars.

5. A device for sensing the anchorage force of reinforcing bars as claimed in claim 1, wherein: the bottom of mounting panel (1) is vertical to be equipped with a plurality of installation section of thick bamboo (14), all detachable mounting in installation section of thick bamboo (14) lower part has bracing piece (15), bracing piece (15) with installation section of thick bamboo (14) threaded connection.