CN220289184U

CN220289184U - Concrete strength detector

Info

Publication number: CN220289184U
Application number: CN202321615306.9U
Authority: CN
Inventors: 杨葵凤; 杜冠宇; 司启亮; 李南南
Original assignee: Henan Zhengyan Engineering Technology Co ltd
Current assignee: Henan Zhengyan Engineering Technology Co ltd
Priority date: 2023-06-25
Filing date: 2023-06-25
Publication date: 2024-01-02
Anticipated expiration: 2033-06-25

Abstract

The utility model discloses a concrete strength detector which comprises a bottom plate, wherein a supporting column is fixedly arranged at the upper end of the bottom plate, a top plate is fixedly arranged at the upper end of the supporting column, a first sliding plate is slidably arranged on the supporting column, a hammer head is arranged at the lower end of the first sliding plate, a counterweight component is arranged at the upper end of the first sliding plate, a lifting component is arranged above the counterweight component, and a release component is arranged above the lifting component. The beneficial effects are that: the hydraulic telescopic rod drives the U-shaped frame and the second sliding plate to move upwards, the hammer head is driven to move upwards together, after the second sliding plate moves to be in contact with the roller, the roller rolls on the inclined plane of the second sliding plate, the fixed rod and the roller are matched, the second sliding plate moves in the direction away from the center of the U-shaped frame, the second sliding plate is separated from the fixed plate, the hammer head moves downwards under the action of gravity, a concrete sample is knocked, the influence caused by friction resistance of the hammer head during release is reduced, and the accuracy of data is further improved through the pressure sensor.

Description

Concrete strength detector

Technical Field

The utility model belongs to the technical field of engineering quality detection, and particularly relates to a concrete strength detector.

Background

The concrete is one of the most main civil engineering materials in the current generation, which is an artificial stone prepared by uniformly stirring, compacting, curing and hardening cementing materials, granular aggregates, water and additives and blends added when necessary according to a certain proportion, is widely applied to civil engineering, and is required to be used for detecting concrete strength in the process of engineering quality detection, the concrete strength detector is a comprehensive instrument for detecting concrete strength by combining rebound testing method and ultrasonic rebound synthetic method, such as Chinese patent with the bulletin number of CN212379210U, a winch is started firstly, a steel wire rope is contracted by a winding drum by the winch, then the hammer head can be lifted, then a sample is placed on a supporting seat, the winch is closed, the tension of the steel wire rope is instantaneously disappeared after the winch is powered off, the hammer head instantaneously drops, the detection of the sample is realized, the hammer head is hammered by the hammer head, and then a weight disc with different weights is matched, so that the detection of different hammering pressures is realized, but the hammer head is still connected with the steel wire rope in the process of dropping, the hammer head is pulled around the winch, the steel wire rope is contracted, the steel wire rope is pulled, the detection resistance is influenced when the steel wire rope is pulled, the detection precision is influenced, and the impact on the detection of the sample is reduced.

Disclosure of Invention

The utility model aims to solve the problems and provide a concrete strength detector.

The utility model realizes the above purpose through the following technical scheme:

the utility model provides a concrete strength detector, includes the bottom plate, bottom plate upper end fixed mounting has the support column, support column upper end fixed mounting has the roof, slidable mounting has first sliding plate on the support column, the tup is installed to first sliding plate lower extreme, first sliding plate upper end is equipped with the counter weight subassembly, counter weight subassembly top is equipped with the promotion subassembly, the promotion subassembly top is equipped with release subassembly, the promotion subassembly includes hydraulic telescoping rod, hydraulic telescoping rod fixed mounting is in roof lower extreme, hydraulic telescoping rod lower extreme fixed mounting has the U-shaped frame, U-shaped frame opening sets up down, the equal slidable mounting of U-shaped frame both sides has the second sliding plate, the second sliding plate is close to the one end at U-shaped frame center is equipped with the slot, the second sliding plate keep away from the one end of U-shaped frame is equipped with the inclined plane, and with be equipped with first spring between the U-shaped frame, the U-shaped frame inboard is equipped with the third sliding plate, the third sliding plate is L shape, one end sets up perpendicularly, the inboard end sliding mounting of third sliding plate is in the U-shaped frame, the other end is equipped with the level spring setting between the U-shaped frame.

Preferably, the counterweight assembly comprises a counterweight box, the counterweight box is fixedly arranged at the upper end of the first sliding plate, a fixed block is fixedly arranged at the upper end of the counterweight box, and a fixed plate is fixedly arranged at the upper end of the fixed block.

Preferably, the release assembly comprises a fourth sliding plate, the fourth sliding plate is slidably mounted on the supporting column and is located above the first sliding plate, a fixing rod is fixedly mounted at the lower end of the fourth sliding plate, a roller is rotatably mounted at the lower end of the fixing rod, a screw is rotatably mounted on the fourth sliding plate, the screw is vertically arranged, and a connecting plate is fixedly mounted at the lower end of the top plate and is in threaded connection with the screw.

Preferably, a base plate is fixedly arranged at the upper end of the base plate, a protection plate is fixedly arranged at the outer side of the base plate, and a pressure sensor is fixedly arranged between the first sliding plate and the hammer head.

Preferably, the lower end of the vertical end of the third sliding plate is used for being inserted into the inner side of the slot to lock the position of the second sliding plate.

Preferably, a rotary table is fixedly arranged at the lower end of the screw rod, and a handle is rotatably arranged on the rotary table.

The beneficial effects are that: placing the backing plate upper end with the concrete sample, the second sliding plate is located the fixed plate lower extreme, hydraulic telescoping rod drives U-shaped frame and second sliding plate upward movement for weight box and tup upwards move together, after the second sliding plate moves to with the gyro wheel contact, the gyro wheel rolls on the inclined plane of second sliding plate, dead lever and gyro wheel cooperation, make the second sliding plate move to the direction of keeping away from U-shaped frame center, make second sliding plate and fixed plate break away from the contact, the tup moves down under the action of gravity, strike the concrete sample, the influence that frictional resistance caused the tup when releasing has been reduced to the data, and accuracy of data has further been improved through pressure sensor.

Drawings

FIG. 1 is a schematic view of a concrete strength tester according to the present utility model;

FIG. 2 is a schematic view of a counterweight assembly of a concrete strength tester according to the utility model;

FIG. 3 is a schematic view of a lifting assembly of a concrete strength tester according to the present utility model;

fig. 4 is a schematic view of a release assembly of a concrete strength tester according to the present utility model.

The reference numerals are explained as follows:

101. a bottom plate; 102. a support column; 103. a top plate; 104. a first sliding plate; 105. a hammer head; 106. a backing plate; 107. a protection plate; 108. a pressure sensor; 200. a counterweight assembly; 201. a weight box; 202. a door; 203. a fixed block; 204. a fixing plate; 300. a lifting assembly; 301. a hydraulic telescopic rod; 302. a U-shaped frame; 303. a second sliding plate; 304. a slot; 305. a third sliding plate; 400. a release assembly; 401. a fourth sliding plate; 402. a fixed rod; 403. a roller; 404. a screw rod; 405. a connecting plate; 406. a turntable; 407. a handle.

Detailed Description

The utility model is further described below with reference to the accompanying drawings:

as shown in fig. 1 to 4, a concrete strength detector comprises a bottom plate 101, wherein the upper end of the bottom plate 101 is fixedly provided with a supporting column 102 through bolts, the upper end of the supporting column 102 is fixedly provided with a top plate 103 through bolts, the supporting column 102 is fixedly provided with a first sliding plate 104 in a sliding manner, the lower end of the first sliding plate 104 is fixedly provided with a pressure sensor 108 through bolts, the lower end of the pressure sensor 108 is fixedly provided with a hammer 105 through bolts, the upper end of the first sliding plate 104 is provided with a counterweight assembly 200, the counterweight assembly 200 comprises a counterweight box 201, the counterweight box 201 is fixedly provided with the upper end of the first sliding plate 104 through bolts, a plurality of counterweights are placed inside the counterweight box 201, the weights of the counterweights are set according to preset values, the front side of the counterweight box 201 is provided with a box door 202, the upper end of the counterweight box 201 is fixedly provided with a fixed block 203 through bolts, the upper end of the fixed block 203 is fixedly provided with a fixed plate 204 through bolts, the hammer 105 is downwards moved under the action of gravity, data are recorded through the pressure sensor 108, and a more accurate result is obtained;

the lifting assembly 300 is arranged above the counterweight assembly 200, the lifting assembly 300 comprises a hydraulic telescopic rod 301, the hydraulic telescopic rod 301 is fixedly arranged at the lower end of the top plate 103 through a bolt, a U-shaped frame 302 is fixedly arranged at the lower end of the hydraulic telescopic rod 301 through a bolt, an opening of the U-shaped frame 302 is downwards arranged, a second sliding plate 303 is slidably arranged at two sides of the U-shaped frame 302, a slot 304 is formed in one end, close to the center of the U-shaped frame 302, of the second sliding plate 303, an inclined surface is formed in one end, far away from the U-shaped frame 302, of the second sliding plate 303, a first spring is arranged between the first sliding plate and the U-shaped frame 302, a third sliding plate 305 is arranged at the inner side of the U-shaped frame 302, the third sliding plate 305 is in an L shape, one end of the third sliding plate 305 is vertically arranged, the vertical end of the third sliding plate 305 is slidably arranged at the inner side of the U-shaped frame 302 through a sliding rail, a second spring is arranged between the horizontal end of the third sliding plate 305 and the U-shaped frame 302, the lower end of the third sliding plate 305 is used for being inserted into the inner side of the slot 304, the position of the second sliding plate 303 is locked, the hydraulic telescopic rod 301 is adjusted, the U-shaped frame 302 is lowered until the third sliding plate 302 is separated from the second sliding plate 204 and moves upwards relative to the third sliding plate 204, which is in contact with the second sliding plate 303, and moves upwards, and moves towards the second sliding plate 204, which is opposite to the lower end of the third sliding plate 305;

the lifting assembly 300 is provided with a release assembly 400 above, the release assembly 400 comprises a fourth sliding plate 401, the fourth sliding plate 401 is slidably mounted on a supporting column 102 and is positioned above a first sliding plate 104, the lower end of the fourth sliding plate 401 is fixedly provided with a fixed rod 402 through a bolt, the lower end of the fixed rod 402 is rotatably provided with a roller 403 through a bearing, the fourth sliding plate 401 is rotatably provided with a lead screw 404 through a bearing, the lead screw 404 is vertically arranged, the lower end of a top plate 103 is fixedly provided with a connecting plate 405 through a bolt, the connecting plate 405 is in threaded connection with the lead screw 404, the lower end of the lead screw 404 is fixedly provided with a turntable 406 through a bolt, the turntable 406 is rotatably provided with a handle 407 through a bearing, when the second sliding plate 303 moves to be in contact with the roller 403, the roller 403 rolls on the inclined surface of the second sliding plate 303, the fixed rod 402 is matched with the roller 403, the second sliding plate 303 moves in a direction away from the center of the U-shaped frame 302, and the second sliding plate 303 is separated from contact with the fixed plate 204;

the backing plate 106 is fixedly mounted at the upper end of the bottom plate 101 through bolts and is used for placing concrete samples, the protection plate 107 is fixedly mounted at the outer side of the backing plate 106 through bolts, and the protection plate 107 is used for avoiding injury to personnel caused by splashing after the concrete samples are broken.

In the above structure, when the concrete strength tester is used, a concrete sample is placed at the upper end of the backing plate 106, the second sliding plate 303 is positioned at the lower end of the fixed plate 204, the hydraulic telescopic rod 301 drives the U-shaped frame 302 and the second sliding plate 303 to move upwards, so that the weight box 201 and the hammer head 105 move upwards together, when the second sliding plate 303 moves to be in contact with the roller 403, the roller 403 rolls on the inclined surface of the second sliding plate 303, the fixed rod 402 and the roller 403 are matched, so that the second sliding plate 303 moves in a direction away from the center of the U-shaped frame 302, the second sliding plate 303 is separated from the fixed plate 204, the third sliding plate 305 slides downwards under the action of the second spring and is inserted into the inner side of the slot 304, the position of the second sliding plate 303 is locked, the fixed plate 204 moves downwards under the action of gravity after the second sliding plate 303 is separated from the hammer head 105, the concrete sample is knocked, the pressure sensor 108 records data to obtain a more accurate result, the protection plate 107 is used for avoiding injury to personnel caused by splashing after the concrete sample is crushed, after the knocking is finished, the hydraulic telescopic rod 301 is adjusted to enable the U-shaped frame 302 to descend until the horizontal end of the third sliding plate 305 contacts with the fixed plate 204, the third sliding plate 305 is driven to move upwards relative to the second sliding plate 303 to enable the third sliding plate 305 to separate from the second sliding plate 303, the second sliding plate 303 is driven to move towards the direction close to the center of the U-shaped frame 302 under the action of the first spring, one end of the second sliding plate 303 close to the center of the U-shaped frame 302 is driven to move to the lower side of the fixed plate 204, the hydraulic telescopic rod 301 is adjusted to drive the U-shaped frame 302 to move upwards, the second sliding plate 303 drives the fixed plate 204 to move upwards, the first sliding plate 104 slides upwards along the support column 102 to enable the hammer 105 to reset, the rotary table 406 is driven by the rotary handle 407, the screw 404 is driven to rotate, and the height of the fourth sliding plate 401 is changed, so that the height of the hammer 105 when released is changed, and different testing requirements are met.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. The utility model provides a concrete strength detector, includes bottom plate (101), bottom plate (101) upper end fixed mounting has support column (102), support column (102) upper end fixed mounting has roof (103), slidable mounting has first sliding plate (104) on support column (102), tup (105) are installed to first sliding plate (104) lower extreme, its characterized in that: the upper end of the first sliding plate (104) is provided with a counterweight assembly (200), a lifting assembly (300) is arranged above the counterweight assembly (200), and a release assembly (400) is arranged above the lifting assembly (300);

lifting assembly (300) are including hydraulic telescoping rod (301), hydraulic telescoping rod (301) fixed mounting is in roof (103) lower extreme, hydraulic telescoping rod (301) lower extreme fixed mounting has U-shaped frame (302), U-shaped frame (302) opening sets up downwards, equal slidable mounting in U-shaped frame (302) both sides has second sliding plate (303), second sliding plate (303) are close to the one end at U-shaped frame (302) center is equipped with slot (304), second sliding plate (303) keep away from the one end of U-shaped frame (302) is equipped with the inclined plane, and with be equipped with first spring between U-shaped frame (302), U-shaped frame (302) inboard is equipped with third sliding plate (305), third sliding plate (305) are L shape, and the perpendicular end slidable mounting of third sliding plate (305) is in U-shaped frame (302) inboard, and the other end level sets up, third sliding plate (303) horizontal end with be equipped with the second spring between U-shaped frame (302).

2. A concrete strength tester according to claim 1, wherein: the counterweight assembly (200) comprises a counterweight box (201), the counterweight box (201) is fixedly arranged at the upper end of the first sliding plate (104), a fixed block (203) is fixedly arranged at the upper end of the counterweight box (201), and a fixed plate (204) is fixedly arranged at the upper end of the fixed block (203).

3. A concrete strength tester according to claim 1, wherein: the release assembly (400) comprises a fourth sliding plate (401), the fourth sliding plate (401) is slidably mounted on the supporting column (102) and located above the first sliding plate (104), a fixing rod (402) is fixedly mounted at the lower end of the fourth sliding plate (401), a roller (403) is rotatably mounted at the lower end of the fixing rod (402), a screw (404) is rotatably mounted on the fourth sliding plate (401), the screw (404) is vertically arranged, a connecting plate (405) is fixedly mounted at the lower end of the top plate (103), and the connecting plate (405) is in threaded connection with the screw (404).

4. A concrete strength tester according to claim 1, wherein: the anti-collision device is characterized in that a base plate (106) is fixedly arranged at the upper end of the base plate (101), a protection plate (107) is fixedly arranged on the outer side of the base plate (106), and a pressure sensor (108) is fixedly arranged between the first sliding plate (104) and the hammer head (105).

5. A concrete strength tester according to claim 1, wherein: the lower end of the vertical end of the third sliding plate (305) is used for being inserted into the inner side of the slot (304) to lock the position of the second sliding plate (303).

6. A concrete strength tester according to claim 3, wherein: a rotary table (406) is fixedly arranged at the lower end of the screw rod (404), and a handle (407) is rotatably arranged on the rotary table (406).