Concrete quality detector

Abstract

The utility model discloses a concrete quality detector which comprises a bottom plate, a stand column is fixedly installed on the top of the bottom plate, a sleeve is connected to the outer wall of the stand column in a sliding and sleeved mode, a rack is fixedly connected to the outer wall of the stand column, a lifting mechanism matched with the rack is installed on the sleeve, a lower connecting rod is fixedly connected to the outer wall of the sleeve, and the lower connecting rod is fixedly connected to the outer wall of the lower connecting rod. A transverse rod is rotatably connected to the bottom of the lower connecting rod, a slump cone is detachably connected to the end, away from the sleeve, of the lower connecting rod, a funnel is arranged at the top end of the slump cone in a penetrating mode, and scale strips are arranged on the outer wall of the stand column. When the slump cone is used, the sleeve is driven by the lifting mechanism to slide upwards along the upright post, so that the slump cone can be driven to vertically move upwards, the slump cone is separated from the concrete cone, the concrete cone naturally collapses, and the slump cone can be effectively prevented from skewing or deflecting during ascending; therefore, interference to collapse of the concrete cone is avoided, and the use effect is good.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete detection, in particular to a concrete quality detector. Background Art

[0002] In highway engineering, the slump of secondary lining concrete is an important technical parameter, which directly affects the construction quality of concrete and the service life of the project. Slump is an indicator of the fluidity of concrete, also known as slump or slump. It refers to the degree of collapse of concrete under its own gravity when it leaves the construction tool. The larger the slump, the better the fluidity of the concrete, and vice versa.

[0003] At present, when testing the slump of concrete, most of the methods are to put the mixed concrete into a conical barrel slump cone and vibrate it evenly with a vibrator. After filling, remove the excess concrete mortar and lift the slump cone at a uniform speed within a few seconds. Then, place the slump cone on one side of the highest point of the concrete pile and use two steel rulers to measure the height difference between the top of the slump cone and the highest point of the concrete mortar.

[0004] It is worth noting that in order to avoid interference with the concrete cone during the process of lifting the slump cone, it is necessary to ensure the verticality of the slump cone when moving upward and avoid deflection of the slump cone. However, most of the slump cones currently only have two handles fixed on the outside of the cylinder. The slump cone is manually lifted upward by holding the handles, which is difficult to operate and has a high error rate, and needs to be improved. Utility Model Content

[0005] The purpose of the utility model is to provide a concrete quality detector to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A concrete quality detector comprises a base plate, a column is fixedly installed on the top of the base plate, a sleeve is slidably sleeved on the outer wall of the column, a rack is fixedly connected to the outer wall of the column, a lifting mechanism matched with the rack is installed on the sleeve, a lower connecting rod is fixedly connected to the outer wall of the sleeve, a cross bar is rotatably connected to the bottom of the lower connecting rod, a slump cone is detachably connected to the end of the lower connecting rod away from the sleeve, a funnel is passed through the top of the slump cone, and a scale bar is arranged on the outer wall of the column.

[0008] As a further solution of the utility model: the end of the lower connecting rod away from the sleeve is fixedly connected to an L-shaped plate, the outer wall of the slump cone is fixedly connected to a connecting plate, the connecting plate and the L-shaped plate are detachably connected by a plurality of hand-tightening bolts, the outer wall of the connecting plate is penetrated by a first through-hole for inserting the hand-tightening bolts, the outer wall of the L-shaped plate is provided with a threaded hole compatible with the hand-tightening bolts, the outer wall of the sleeve is fixedly connected to an upper connecting rod, the upper connecting rod is located above the lower connecting rod, and the upper connecting rod is fixedly connected to the L-shaped plate.

[0009] As a further solution of the utility model: a screw rod is passed through the second through hole on the lower connecting rod, the bottom end of the screw rod is fixedly connected to the cross rod, and a butterfly nut is fitted on the outer wall of the screw rod above the lower connecting rod.

[0010] As a further solution of the utility model: the lifting mechanism includes a rotating shaft rotatably installed in the sleeve, the outer wall of the rotating shaft is fixedly sleeved with a gear and a worm wheel, the gear and the rack are meshed with each other, a worm is rotatably penetrated through the outer wall of the sleeve, the worm and the worm wheel are meshed with each other, and one end of the worm located outside the sleeve is fixedly connected to a handwheel.

[0011] As a further solution of the utility model: two sliding grooves are symmetrically provided on the outer walls of both sides of the column, and sliders are slidably connected in the sliding grooves, and the sliders are fixedly connected to the inner wall of the sleeve.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. When the utility model is in use, the lifting mechanism drives the sleeve to slide upward along the column, which can drive the slump cone to move vertically upward, so that the slump cone is separated from the concrete cone, and the concrete cone collapses naturally. The slump cone can be effectively prevented from being skewed or deflected when rising, thereby avoiding interference with the collapse of the concrete cone, and the use effect is good.

[0014] 2. In the utility model, the slump cone is removed, and then the cross bar is rotated to the top of the highest point of the concrete after collapse, and the sleeve is driven downward by the lifting mechanism to make the bottom surface of the cross bar fit with the highest point of the concrete. Since the height difference between the bottom surface of the cross bar and the top of the sleeve is a fixed value, the height value of the highest point of the concrete can be obtained by observing the scale aligned with the top of the sleeve, thereby facilitating the slump of the concrete, and the operation is simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The figure is a structural schematic diagram of a concrete quality detector.

[0016] Figure 2 The diagram is a schematic diagram of the top structure of a lower connecting rod in a concrete quality detector.

[0017] Figure 3 for Figure 2 A partial enlarged view of .

[0018] Among them, the base plate 1, the slump cone 2, the connecting plate 3, the handle 4, the funnel 5, the column 6, the slide 7, the rack 8, the sleeve 9, the slider 10, the rotating shaft 11, the gear 12, the worm 13, the handwheel 14, the worm gear 15, the upper connecting rod 16, the lower connecting rod 17, the L-shaped plate 18, the hand-tightening bolt 19, the cross bar 20, the screw 21, the butterfly nut 22, and the scale bar 23. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figures 1 to 3 In an embodiment of the utility model, a concrete quality detector includes a base plate 1, a column 6 is fixedly installed on the top of the base plate 1, a sleeve 9 is slidably sleeved on the outer wall of the column 6, a rack 8 is fixedly connected to the outer wall of the column 6, a lifting mechanism matched with the rack 8 is installed on the sleeve 9, a lower connecting rod 17 is fixedly connected to the outer wall of the sleeve 9, a cross bar 20 is rotatably connected to the bottom of the lower connecting rod 17, a slump cone 2 is detachably connected to the end of the lower connecting rod 17 away from the sleeve 9, a funnel 5 is penetrated through the top of the slump cone 2, and a scale bar 23 is arranged on the outer wall of the column 6.

[0021] The utility model adopts the above scheme. When in use, the slump cone 2 is driven downward by the lifting mechanism to move until the bottom end of the slump cone 2 is in close contact with the top surface of the bottom plate 1, and then concrete is filled into the slump cone 2 to form a concrete cone. Then, the sleeve 9 is driven upward along the column 6 by the lifting mechanism to slide, which can drive the slump cone 2 to move vertically upward so that the slump cone 2 is separated from the concrete cone and the concrete cone collapses naturally. The slump cone 2 can be effectively prevented from being skewed or deflected when rising, thereby avoiding interference with the collapse of the concrete cone. Then, the slump cone 2 is removed, and the cross bar 20 is rotated to just above the highest point of the concrete after the collapse, and the sleeve 9 is driven downward by the lifting mechanism to make the bottom surface of the cross bar 20 fit the highest point of the concrete. Since the height difference between the bottom surface of the cross bar 20 and the top of the sleeve 9 is a fixed value, the height value of the highest point of the concrete can be obtained by observing the scale aligned with the top of the sleeve 9, thereby facilitating the slump of the concrete, and the operation is simple and convenient.

[0022] Specific combination Figure 1-2 In one embodiment of the utility model, the end of the lower connecting rod 17 away from the sleeve 9 is fixedly connected to the L-shaped plate 18, the outer wall of the slump cone 2 is fixedly connected to the connecting plate 3, the connecting plate 3 and the L-shaped plate 18 are detachably connected by a plurality of hand-tightening bolts 19, the outer wall of the connecting plate 3 is penetrated by a first through hole for inserting the hand-tightening bolt 19, the outer wall of the L-shaped plate 18 is provided with a threaded hole adapted to the hand-tightening bolt 19, the outer wall of the sleeve 9 is fixedly connected to the upper connecting rod 16, the upper connecting rod 16 is located above the lower connecting rod 17, and the upper connecting rod 16 is fixedly connected to the L-shaped plate 18.

[0023] By the cooperation between the hand-tightening bolt 19 and the first through-hole and the threaded hole, the L-shaped plate 18 and the slump cone 2 can be quickly disassembled and assembled, and the operation is simple and convenient.

[0024] Specific combination Figure 1 , Figure 2 In one embodiment of the utility model, a screw rod 21 is passed through the second through hole on the lower connecting rod 17, the bottom end of the screw rod 21 is fixedly connected to the cross bar 20, and a butterfly nut 22 is sleeved on the outer wall of the screw rod 21 above the lower connecting rod 17.

[0025] By loosening the butterfly nut 22 on the screw rod 21, the cross bar 20 can be rotated below the lower connecting rod 17 so that the cross bar 20 can be aligned with the highest point of the concrete pile in the vertical direction. By tightening the butterfly nut 22, the cross bar 20 can be locked at the bottom of the lower connecting rod 17.

[0026] Specific combination Figure 1-3 In one embodiment of the utility model, the lifting mechanism includes a rotating shaft 11 rotatably installed in a sleeve 9, a gear 12 and a worm wheel 15 are fixedly sleeved on the outer wall of the rotating shaft 11, the gear 12 is meshed with the rack 8, a worm 13 is rotatably penetrated through the outer wall of the sleeve 9, the worm 13 and the worm wheel 15 are meshed with each other, it is worth noting that the cooperation between the worm 13 and the worm wheel 15 is self-locking, and a handwheel 14 is fixedly connected to one end of the worm 13 located outside the sleeve 9.

[0027] By rotating the worm 13 through the hand wheel 14 , the worm 13 and the worm wheel 15 can be used to drive the rotating shaft 11 to rotate, and the gear 12 and the rack 8 can be used to drive the sleeve 9 to move up and down along the column 6 .

[0028] Specific combination Figure 1-3 In one embodiment of the utility model, two slide grooves 7 are symmetrically opened on the outer walls of both sides of the column 6, and sliders 10 are slidably connected in the slide grooves 7, and the sliders 10 are fixedly connected to the inner wall of the sleeve 9.

[0029] The cooperation between the slider 10 and the slide groove 7 can ensure the stability of the sleeve 9 sliding on the column 6.

[0030] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A concrete quality detector, characterized in that: The invention comprises a bottom plate (1), a column (6) is fixedly mounted on the top of the bottom plate (1), a sleeve (9) is slidably sleeved on the outer wall of the column (6), a rack (8) is fixedly connected to the outer wall of the column (6), a lifting mechanism matched with the rack (8) is installed on the sleeve (9), a lower connecting rod (17) is fixedly connected to the outer wall of the sleeve (9), a cross rod (20) is rotatably connected to the bottom of the lower connecting rod (17), a slump cone (2) is detachably connected to the end of the lower connecting rod (17) away from the sleeve (9), a funnel (5) is passed through the top of the slump cone (2), and a scale bar (23) is arranged on the outer wall of the column (6).

2. A concrete quality detector according to claim 1, characterized in that: The end of the lower connecting rod (17) away from the sleeve (9) is fixedly connected to an L-shaped plate (18); the outer wall of the slump cone (2) is fixedly connected to a connecting plate (3); the connecting plate (3) and the L-shaped plate (18) are detachably connected via a plurality of hand-tightening bolts (19); a first through hole for inserting the hand-tightening bolts (19) is penetrated through the outer wall of the connecting plate (3); a threaded hole matched with the hand-tightening bolts (19) is opened on the outer wall of the L-shaped plate (18); the outer wall of the sleeve (9) is fixedly connected to an upper connecting rod (16); the upper connecting rod (16) is located above the lower connecting rod (17), and the upper connecting rod (16) is fixedly connected to the L-shaped plate (18).

3. A concrete quality detector according to claim 1, characterized in that: A screw rod (21) is passed through the second through hole on the lower connecting rod (17), the bottom end of the screw rod (21) is fixedly connected to the cross rod (20), and a butterfly nut (22) is sleeved on the outer wall of the screw rod (21) above the lower connecting rod (17).

4. A concrete quality detector according to claim 1, characterized in that: The lifting mechanism comprises a rotating shaft (11) rotatably mounted in a sleeve (9); a gear (12) and a worm wheel (15) are fixedly sleeved on the outer wall of the rotating shaft (11); the gear (12) and the rack (8) are meshed with each other; a worm (13) is rotatably penetrated through the outer wall of the sleeve (9); the worm (13) and the worm wheel (15) are meshed with each other; and a hand wheel (14) is fixedly connected to one end of the worm (13) located outside the sleeve (9).

5. A concrete quality detector according to claim 4, characterized in that: Two sliding grooves (7) are symmetrically provided on the outer walls of both sides of the column (6), and sliders (10) are slidably connected in the sliding grooves (7), and the sliders (10) are fixedly connected to the inner wall of the sleeve (9).

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