Tester for detecting alkali aggregate reaction in concrete engineering

Abstract

The utility model discloses a tester for detecting alkali aggregate reaction in concrete engineering, the tester for detecting alkali aggregate reaction in concrete engineering comprises a cart main body, the cart comprises a bottom plate, a box body is arranged on the bottom plate, a plurality of movable locking rods are arranged on the box body, and the locking rods are arranged on the bottom plate. The bottom of the locking rod slides in the box body, a threaded sleeve is arranged on the top of the locking rod, and when the threaded sleeve rotates, the locking rod synchronously moves to abut against the ground. The tester is integrally arranged, the ultrasonic detection unit and the drilling unit are integrated, and detection and drilling sampling at any time can be achieved. Through the integrated design, the detection efficiency is greatly improved, and the detection time and the labor cost are reduced. And meanwhile, through cooperation with a locking rod, a threaded sleeve, a transmission unit, an overload unit and a sliding plate, drilling can be conducted only after the locking rod locks the cart body, and safety is ensured while efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to alkali aggregate reaction detection technical field especially a kind of tester for detecting alkali aggregate reaction in concrete engineering. BACKGROUND

[0002] As one of the most important building materials, the performance of concrete directly affects the safety and durability of buildings. Alkali aggregate reaction in concrete is a common deterioration phenomenon, which refers to the chemical reaction between alkaline substances in concrete (such as Na2O and K2O in cement) and active silicon dioxide in aggregate, generating water-absorbing and expanding gel material, causing internal pressure in concrete, and ultimately causing damage to concrete structure. The method for detecting alkali aggregate reaction in concrete engineering is commonly used for on-site detection. Generally, an ultrasonic tester is used to detect the on-site concrete, and during the detection process, part of the drill hole needs to be sampled. During the sampling process, since the tester is constantly moving, an additional device is needed to lock and sample, which is relatively cumbersome and cannot quickly achieve detection and sampling. SUMMARY

[0003] The utility model provides a kind of tester for detecting alkali aggregate reaction in concrete engineering in view of the deficiency in the prior art.

[0004] To solve the above technical problems, the utility model solves them by the following technical solutions: a kind of tester for detecting alkali aggregate reaction in concrete engineering includes trolley main body, the trolley includes bottom plate, box is provided on the bottom plate, a plurality of movable locking rods are provided on the box, the bottom of the locking rod slides in the box, the locking rod top is provided with threaded sleeve, when the threaded sleeve rotates, the locking rod moves synchronously to the ground.

[0005] In the above-mentioned scheme, preferably, a drilling unit is provided in the box, the drilling unit includes a drilling piece, a control rod and a control sleeve, the control rod is slidably connected to a sliding plate in the box, the drilling piece is located on the lower side of the control rod, a threaded portion is provided on the upper side of the control rod, and the threaded portion is matched with the inside of the control sleeve.

[0006] In the above-mentioned scheme, preferably, a first motor is provided on the top of the box, the first motor is connected to the control sleeve, and when the first motor drives the control sleeve to rotate, the drilling piece slides on the box and the bottom plate.

[0007] In the above-mentioned scheme, preferably, the locking rod includes a threaded portion, the threaded portion is matched with the threaded sleeve, and the locking rod is slidably arranged on the sliding plate, so that when the threaded sleeve rotates, the locking rod moves.

[0008] Preferably, the control sleeve and the threaded sleeve are connected through a transmission unit, the transmission unit comprises a main gear and a plurality of secondary gears connected in meshing, and the main gear is located on the output shaft of the first motor.

[0009] Preferably, an overload unit is arranged between the main gear and the output shaft, the overload unit comprises a spring and a ball, the ball is arranged in a groove of the main gear through the spring, and a groove is arranged on the output shaft corresponding to the ball, and when the ball is located in the groove, the output shaft drives the main gear to rotate.

[0010] Preferably, a box body is arranged on the control rod, a second motor is arranged in the box body, and the second motor is connected with the drilling part.

[0011] Preferably, a plurality of slidable pulleys are arranged on the bottom plate.

[0012] Preferably, the box body is further provided with an ultrasonic detection unit.

[0013] The utility model discloses the beneficial effect is: the integrative setting test appearance, integrated ultrasonic detection unit and drilling unit can realize the detection of any time drilling sampling of any time. The integrated design greatly improves the detection efficiency, reduces the detection time and labor cost. At the same time, cooperate locking rod, threaded sleeve, transmission unit, overload unit and sliding plate, realize that locking rod can only be drilled after locking the rear of the trolley main body, improve the efficiency while ensuring safety. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the utility model three-dimensional view.

[0015] Figure 2 It is the utility model bottom schematic view.

[0016] Figure 3 It is the utility model hidden box body schematic view.

[0017] Figure 4 It is the utility model side view.

[0018] Figure 5 It is Figure 4 A-A toward sectional view of.

[0019] Figure 6 It is Figure 5 B-B toward sectional view of. DETAILED DESCRIPTION

[0020] The utility model will be further described in detail in combination with the drawings and specific embodiment: refer to Figures 1-6The utility model provides a kind of tester for detecting alkali aggregate reaction in concrete engineering, including trolley main body 1, wherein the trolley main body 1 includes bottom plate 2, box 3 is arranged above the bottom plate 2, and a plurality of pulleys 18 are arranged below the bottom plate 2, the pulley 18 is used to slide, and a gap is formed after the pulley 18 contacts with ground.

[0021] Ultrasonic detection unit 19 is arranged in box 3, and the ultrasonic detection unit 19 is used to detect the crack of alkali aggregate reaction in concrete, and a drilling unit is arranged in the box 3, which is used for sampling after detection, to further observe the reaction therein.

[0022] The drilling unit includes drilling part 6, control rod 7 and control sleeve 8, the drilling part 6 is arranged at the lower end of the control rod 7, and the drilling part 6 is rotatably connected to the control rod 7, further, a sliding plate is arranged in the middle of the box 3, and the control rod 7 slides on the sliding plate.

[0023] Meanwhile, the control sleeve 8 is arranged at the upper end of the control rod 7, wherein the control rod 7 is provided with a sliding part and a threaded part, the sliding part is quadrangular, and the sliding part slides on the sliding plate 9, and the threaded part is matched in the control sleeve 8, when the control sleeve 8 rotates, the control rod 7 moves on the sliding plate 9.

[0024] A first motor 10 is arranged in the box 3, the output shaft 13 of the first motor 10 is connected with the control sleeve 8, the first motor 10 drives the control sleeve 8 to rotate, a box body 16 is arranged below the sliding plate 9 of the control rod 7, a second motor 17 is arranged in the box body 16, the second motor 17 is connected in the middle of the drilling part 6, when the two motors are started synchronously, the drilling part 6 can move and rotate at the same time, to realize fast drilling and sampling.

[0025] Similarly, a plurality of movable locking rods 4 are arranged in the box 3, specifically, the locking rods 4 slide on the sliding plate 9, and the cross section of the locking rod 4 is quadrangular and slides on the sliding plate 9, therefore, the top of the locking rod 4 is also provided with a threaded part, and a threaded sleeve 5 is arranged on the threaded part, similarly, when the threaded sleeve 5 rotates, the locking rod 4 moves.

[0026] In order to control the locking rod 4 and the drilling member 6, a transmission unit is arranged between the control sleeve 8 and the threaded sleeve 5, the transmission unit comprises a main gear 11 and a plurality of secondary gears 12 connected in meshing, the main gear 11 is arranged on an output shaft 13, and the secondary gears 12 are arranged on the threaded sleeve 5, when the main gear 11 rotates, the secondary gears 12 rotate synchronously, thus the control rod 7 and the locking rod 4 are controlled synchronously.

[0027] Meanwhile, an overload unit is arranged between the output shaft 13 and the main gear 11, the overload unit comprises a plurality of springs 14 and balls 15, in the embodiment, four grooves are arranged, the balls 15 are arranged in the grooves in a slidable manner, the balls 15 are provided with the springs 14 at the bottom of the grooves, and a groove is arranged on the output shaft 13, when the balls 15 are half in the groove and half in the groove, the main gear 11 rotates, and the secondary gears 12 rotate synchronously.

[0028] When the locking rod 4 contacts the concrete ground, the main gear 11 cannot drive the secondary gears 12, that is, when the output shaft 13 rotates, the balls 15 move to the grooves, the secondary gears 12 cannot be driven, thus in the normal state, the locking rod 4 is arranged below the drilling member 6.

[0029] When the first motor 10 starts, the locking rod 4 and the drilling member 6 move synchronously to the state that the locking rod 4 is locked on the ground, when the output shaft 13 continues to rotate, the locking rod 4 cannot continue to move, that is, the locking rod 4 is locked behind the cart, and then the drilling member 6 drills and samples, when the output shaft 13 reversely rotates, the locking rod 4 and the drilling member 6 move upwards synchronously, and when the locking rod 4 abuts against the threaded sleeve 5, the drilling member 6 can continue to move.

[0030] The above embodiment is only used to illustrate the technical scheme of the utility model, and is not limited thereto; although the utility model is described in detail with reference to the foregoing embodiment, those skilled in the art should understand that the technical scheme recorded in the foregoing embodiment can be modified, or some technical features can be replaced equivalently; and the modification or replacement does not make the essence of the corresponding technical scheme deviate from the spirit and scope of the technical scheme of the utility model.

Claims

1. A testing instrument for detecting alkali-aggregate reaction in concrete engineering, characterized in that: The trolley includes a main body (1), the trolley includes a base plate (2), a box (3) is provided on the base plate (2), a plurality of movable locking rods (4) are provided on the box (3), the bottom of the locking rod (4) slides in the box (3), and a threaded sleeve (5) is provided on the top of the locking rod (4). When the threaded sleeve (5) rotates, the locking rod (4) moves synchronously to abut against the ground.

2. The test instrument for detecting alkali-aggregate reaction in concrete engineering according to claim 1, characterized in that: The housing (3) is provided with a drilling unit, which includes a drilling component (6), a control rod (7) and a control sleeve (8). The control rod (7) is slidably connected to the sliding plate (9) in the housing (3). The drilling component (6) is located below the control rod (7). The upper side of the control rod (7) is provided with a threaded part, which matches the inside of the control sleeve (8).

3. The test instrument for detecting alkali-aggregate reaction in concrete engineering according to claim 2, characterized in that: The top of the housing (3) is provided with a first motor (10), which is connected to the control sleeve (8). When the first motor (10) drives the control sleeve (8) to rotate, the drilling part (6) slides on the housing (3) and the bottom plate (2).

4. A testing instrument for detecting alkali-aggregate reaction in concrete engineering according to claim 2 or 3, characterized in that: The locking rod (4) includes a threaded portion that matches the threaded sleeve (5). The locking rod (4) is slidably disposed on the sliding plate (9). When the threaded sleeve (5) rotates, the locking rod (4) moves.

5. The test instrument for detecting alkali-aggregate reaction in concrete engineering according to claim 4, characterized in that: The control sleeve (8) and the threaded sleeve (5) are connected by a transmission unit, which includes a main gear (11) and several meshing auxiliary gears (12). The main gear (11) is located on the output shaft (13) of the first motor (10).

6. The test instrument for detecting alkali-aggregate reaction in concrete engineering according to claim 5, characterized in that: An overload unit is provided between the main gear (11) and the output shaft (13). The overload unit includes a spring (14) and a ball (15). The ball (15) is set in the groove of the main gear (11) by the spring (14). A groove is provided on the output shaft (13) corresponding to the ball (15). When the ball (15) is located in the groove, the output shaft (13) drives the main gear (11) to rotate.

7. The test instrument for detecting alkali-aggregate reaction in concrete engineering according to claim 6, characterized in that: The control lever (7) is provided with a housing (16), and a second motor (17) is provided in the housing (16). The second motor (17) is connected to the drilling component (6).

8. The test instrument for detecting alkali-aggregate reaction in concrete engineering according to claim 1, characterized in that: The base plate (2) is provided with several sliding pulleys (18).

9. The test instrument for detecting alkali-aggregate reaction in concrete engineering according to claim 1, characterized in that: The enclosure (3) is also equipped with an ultrasonic detection unit (19).

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