CN212931386U

CN212931386U - Novel concrete crack width measuring device

Info

Publication number: CN212931386U
Application number: CN202022061537.2U
Authority: CN
Inventors: 徐瑞腾
Original assignee: Guangxi Wanzhong Engineering Testing Co ltd
Current assignee: Guangxi Wanzhong Engineering Testing Co ltd
Priority date: 2020-09-19
Filing date: 2020-09-19
Publication date: 2021-04-09
Anticipated expiration: 2030-09-19

Abstract

The utility model discloses a novel wide device is surveyed to concrete crack relates to the building engineering and measures technical field, detects to the artifical handheld instrument in present majority's concrete crack, and is not accurate enough like this, wastes time and energy, and most concrete crack detection device can only detect the bottom surface moreover, and the crack on the wall body just is difficult for the measuring problem, now proposes following scheme, comprising a base plate, the up end horizontal installation of bottom plate has first fixed frame, and the cavity has been seted up to the inside of first fixed frame, rotates on the both sides inner wall of cavity and is connected with first reciprocal lead screw, the screw thread has cup jointed first sliding block on the lateral surface of first reciprocal lead screw. The utility model is simple in operation, convenient to use, the artifical handheld instrument in great majority concrete crack detects, and is not accurate enough like this, wastes time and energy, and most concrete crack detection device can only detect the bottom surface moreover, and the crack on the wall body just is difficult for measuring.

Description

Novel concrete crack width measuring device

Technical Field

The utility model relates to a building engineering measures technical field, especially relates to a novel concrete crack width measuring device.

Background

The form and the variety of cracks are various, and the cracks have design reasons, but most of the cracks are generated by combining various factors in the construction process, so that the problem of cracks in concrete needs to be fundamentally solved, and the formation reason of the concrete cracks needs to be started. Shrinkage is a major characteristic of concrete and has a great influence on the performance of concrete. If micro cracks generated by shrinkage develop, the structure may be cracked, deformed, or damaged. The cause of shrinkage cracks is considered to be cracks generated by concrete shrinkage due to the action of cement hydration heat and outside air temperature during construction.

However, in the prior art, most concrete cracks are mostly manual hand-held instruments, and the cracks are detected through the probe, so that manual detection is not accurate enough, time and labor are wasted, most concrete crack detection devices can only detect the bottom surface, the cracks on the wall body are not easy to measure, and therefore a novel concrete crack width measuring device is designed.

SUMMERY OF THE UTILITY MODEL

The utility model provides a pair of novel concrete crack width measuring device has solved that current most concrete cracks are mostly artifical handheld instrument, detects the crack through the probe, and the artifical not accurate enough that detects like this wastes time and energy, and most concrete crack detection device can only detect the bottom surface moreover, and the crack on the wall body just is difficult for the measuring problem.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a novel concrete crack width measuring device comprises a bottom plate, wherein a first fixing frame is horizontally installed on the upper end face of the bottom plate, a cavity is formed in the first fixing frame, first reciprocating lead screws are rotatably connected to the inner walls of the two sides of the cavity, first sliding blocks are sleeved on the outer side faces of the first reciprocating lead screws in a threaded mode, the bottom end of each first sliding block is fixedly connected with a first telescopic rod, the bottom end of each first telescopic rod is fixedly connected with a first measuring probe, one side of the outer wall of the first fixing frame is rotatably connected with a first rotating shaft, one end of each first rotating shaft penetrates through one side wall of the first fixing frame and is in transmission connection with the first reciprocating lead screws, a motor is fixedly connected to one end face of the bottom plate, an output shaft of the motor penetrates through the upper end face of the bottom plate and is in transmission connection with a first gear, two bearing seats are fixedly connected to the upper end face of the bottom plate and are respectively located, the two bearing blocks are internally and respectively connected with a second rotating shaft and a third rotating shaft in a rotating mode, one end, opposite to the second rotating shaft and the third rotating shaft, of the second rotating shaft is connected with a second gear in a transmission mode, the two second gears are all meshed with the first gear, a vertically placed second fixing frame is installed on one side of the upper end face of the bottom plate, a lower end of one side face of the second fixing frame is connected with a fourth rotating shaft in a rotating mode, a connecting mechanism is arranged between the fourth rotating shaft and the third rotating shaft and between the second rotating shaft and the first rotating shaft, a second reciprocating lead screw is connected to the inner rotating frame of the second rotating frame, a second sliding block is sleeved on the outer wall of the second reciprocating lead screw in a threaded mode, a second telescopic rod is fixedly connected to one end of the.

Preferably, one end of the fourth rotating shaft penetrates through the side wall of the second fixing frame and is in transmission connection with a third gear, the lower end of the second reciprocating screw rod is fixedly connected with a fourth gear, and the third gear is meshed with the fourth gear.

Preferably, coupling mechanism is including connecting the connecting rod between first pivot and second pivot, and the cavity has been seted up to the inside of connecting rod, and the slip strip hole has been seted up to the top face of connecting rod, and connecting rod cavity middle part is fixed with the baffle, and the equal sliding connection in inside both ends of connecting rod has the slide bar, and two slide bars and the equal rigid coupling between the baffle have the spring, and two slide bars all pass the both ends outer wall of connecting rod and extend to the outside.

Preferably, a clamping groove opening is formed in one end face of each of the first rotating shaft, the second rotating shaft, the third rotating shaft and the fourth rotating shaft, a tooth-shaped groove is formed in the bottom end of each clamping groove opening, tooth-shaped blocks are fixedly connected to two ends of the sliding rod, and the tooth-shaped blocks are movably clamped with the tooth-shaped grooves.

Preferably, the upper end face of the bottom plate is provided with a crack width gauge, and the output end of the crack width gauge is respectively connected with the first measuring probe and the second measuring probe through leads.

Preferably, four universal wheels with brakes are mounted on the bottom surface of the bottom plate.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses in if need detect subaerial crack, remove the cracked top with the device earlier, take off the adjustment mechanism between third pivot and the fourth pivot, press the extrusion piece on two slide bars, two extrusion pieces are close to each other, two springs shrink, make the profile of tooth piece at both ends on the slide bar leave the profile of tooth groove of third pivot and fourth pivot respectively, adjust first telescopic link earlier, make first measuring probe extend to suitable position, the starter motor again, the motor drives first gear revolve, first gear drives second gear revolve, first reciprocal lead screw rotates, make first measuring probe follow cracked one end, remove from the other end again, measuring probe sends data to the crack width gauge, can obtain the numerical value in ground earth muddy gap like this.

2. The utility model discloses in when need to detect the wall body and mix earth crack, take off adjustment mechanism between first pivot and the second pivot, connect the adjustment mechanism between third pivot and the fourth pivot on, loosen the extrusion piece on the slide bar, the slide bar receives the elasticity of spring and removes to the draw-in groove mouth, until the profile of tooth piece joint in the flute profile, push away the device to wall body department again, adjust the second telescopic link to suitable position, the starter motor, first gear drives second gear revolve, the reciprocal lead screw of second rotates, make second measuring probe carry out the detection of one time, measuring probe sends data to the crack width gauge, can obtain the numerical value in wall body and mix earth crack like this.

Drawings

Fig. 1 is a schematic sectional view of the front view structure of the present invention;

FIG. 2 is an enlarged schematic view of the structure at A of the present invention;

fig. 3 is a schematic side view of the connection mechanism of the present invention.

Reference numbers in the figures: 1. a base plate; 2. a first fixed frame; 3. a first reciprocating screw rod; 4. a first slider; 5. a first telescopic rod; 6. a first measurement probe; 7. a first rotating shaft; 8. a motor; 9. a first gear; 10. a second rotating shaft; 11. a third rotating shaft; 12. a second gear; 13. a second fixed frame; 14. a fourth rotating shaft; 15. a connecting mechanism; 151. a connecting rod; 152. a sliding bar hole; 153. a baffle plate; 154. a slide bar; 155. a spring; 156. a toothed block; 16. a second reciprocating screw rod; 17. a second slider; 18. a second telescopic rod; 19. a second measurement probe; 20. a third gear; 21. a fourth gear; 22. crack width gauge.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-3, a novel concrete crack width measuring device comprises a bottom plate 1, a first fixed frame 2 is horizontally installed on the upper end surface of the bottom plate 1, a cavity is formed inside the first fixed frame 2, a first reciprocating screw rod 3 is rotatably connected to the inner walls of two sides of the cavity, a first sliding block 4 is sleeved on the outer side surface of the first reciprocating screw rod 3 in a threaded manner, a first telescopic rod 5 is fixedly connected to the bottom end of the first sliding block 4, a first measuring probe 6 is fixedly connected to the bottom end of the first telescopic rod 5, a first rotating shaft 7 is rotatably connected to one side of the outer wall of the first fixed frame 2, one end of the first rotating shaft 7 penetrates through one side wall of the first fixed frame 2 and is in transmission connection with the first reciprocating screw rod 3, a motor 8 is fixedly connected to one end surface of the bottom plate 1, an output shaft of the motor 8 penetrates through the upper end surface of the bottom plate 1 and is in transmission connection with a first gear 9, and the two bearing seats are respectively positioned at two sides of the first gear 9, a second rotating shaft 10 and a third rotating shaft 11 are respectively and rotatably connected in the two bearing seats, one ends of the second rotating shaft 10 opposite to the third rotating shaft 11 are respectively and drivingly connected with a second gear 12, the two second gears 12 are respectively meshed with the first gear 9, one side of the upper end surface of the bottom plate 1 is provided with a second fixed frame 13 which is vertically arranged, and the lower end of one side of the second fixed frame 13 is rotatably connected with a fourth rotating shaft 14, connecting mechanisms 15 are respectively arranged between the fourth rotating shaft 14 and the third rotating shaft 11 and between the second rotating shaft 10 and the first rotating shaft 7, a second reciprocating screw rod 16 is rotatably connected in the second fixed frame 13, and a second sliding block 17 is sleeved on the outer wall of the second reciprocating screw rod 16 in a threaded manner, one end of the second sliding block 17 is fixedly connected with a second telescopic rod 18, and one end of the second telescopic rod 18 is provided with a second measuring probe 19.

One end of the fourth rotating shaft 14 penetrates through the side wall of the second fixing frame 13 and is in transmission connection with a third gear 20, the lower end of the second reciprocating screw rod 16 is fixedly connected with a fourth gear 21, the third gear 20 is meshed with the fourth gear 21, and the third gear 20 drives the fourth gear 21 to rotate so as to enable the second reciprocating screw rod 16 to rotate.

Coupling mechanism 15 is including connecting the connecting rod 151 between first pivot 7 and second pivot 10, and the cavity has been seted up to the inside of connecting rod 151, slip strip hole 152 has been seted up to the top terminal surface of connecting rod 151, connecting rod 151 cavity middle part is fixed with baffle 153, the equal sliding connection in both ends of connecting rod 151 has slide bar 154, and two slide bars 154 and baffle 153 between equal rigid coupling have spring 155, two slide bars 154 all pass the both ends outer wall of connecting rod 151 and extend to the outside, first pivot 7, second pivot 10, third pivot 11, the card notch has all been seted up to a terminal surface of fourth pivot 14, and the tooth form groove has been seted up to the bottom of card notch, the equal rigid coupling in both ends of slide bar 154 has tooth form piece 156, tooth form piece 156 and tooth form groove activity joint, coupling mechanism 15 can make first pivot 7 be connected between second pivot 10 and third pivot 11 and the fourth pivot 14.

The upper end face of the bottom plate 1 is provided with a crack width measuring instrument 22, the output end of the crack width measuring instrument 22 is respectively connected with the first measuring probe 6 and the second measuring probe 19 through wires, the bottom face of the bottom plate 1 is provided with four universal wheels with brakes, and the universal wheels are convenient to move.

The working principle is as follows: when the device is used, if a crack on the ground needs to be detected, the device is moved to the position above the crack, the adjusting mechanism between the third rotating shaft 11 and the fourth rotating shaft 14 is taken down, the extrusion blocks on the two sliding rods 154 are pressed, the two extrusion blocks are close to each other, the two springs 155 are contracted, the tooth-shaped blocks 156 at the two ends of the sliding rods 154 are respectively separated from the tooth-shaped grooves of the third rotating shaft 11 and the fourth rotating shaft 14, the first telescopic rod 5 is adjusted to extend the first measuring probe 6 to a proper position, then the motor 8 is started, the motor 8 drives the first gear 9 to rotate, the first gear 9 drives the second gear 12 to rotate, the first reciprocating screw rod 3 rotates, the first measuring probe 6 is moved back from one end of the crack and then from the other end, the measuring probe sends data to the crack width measuring instrument 22, so that the numerical value of the ground concrete crack can be obtained, if a wall body concrete crack needs to be detected, the adjusting mechanism between the first rotating shaft 7 and the second rotating shaft 10 is taken down, the adjusting mechanism between the third rotating shaft 11 and the fourth rotating shaft 14 is connected, the extrusion block on the sliding rod 154 is loosened, the sliding rod 154 moves towards the notch opening under the action of the elastic force of the spring 155 until the tooth-shaped block 156 is clamped in the tooth-shaped groove, the device is pushed to the position of the wall body, the second telescopic rod 18 is adjusted to a proper position, the motor 8 is started, the first gear 9 drives the second gear 12 to rotate, the second reciprocating screw rod 16 rotates, the second measuring probe 19 is enabled to carry out detection one time after another, the measuring probe sends data to the crack width gauge 22, and therefore the numerical value of the concrete crack of the wall body can be obtained.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A novel concrete crack width measuring device comprises a bottom plate (1) and is characterized in that a first fixing frame (2) is horizontally installed on the upper end face of the bottom plate (1), a cavity is formed in the first fixing frame (2), first reciprocating lead screws (3) are rotatably connected to the inner walls of the two sides of the cavity, first sliding blocks (4) are sleeved on the outer side faces of the first reciprocating lead screws (3) in a threaded mode, first telescopic rods (5) are fixedly connected to the bottom ends of the first sliding blocks (4), first measuring probes (6) are fixedly connected to the bottom ends of the first telescopic rods (5), a first rotating shaft (7) is rotatably connected to one side of the outer wall of the first fixing frame (2), one end of the first rotating shaft (7) penetrates through one side wall of the first fixing frame (2) and is in transmission connection with the first reciprocating lead screws (3), a motor (8) is fixedly connected to one end face of the bottom plate (1), and the output shaft of the motor (8) passes through the upper end face of the bottom plate (1) and is connected with a first gear (9) in a transmission way, the upper end face of the bottom plate (1) is fixedly connected with two bearing seats, the two bearing seats are respectively positioned at two sides of the first gear (9), a second rotating shaft (10) and a third rotating shaft (11) are respectively connected in the two bearing seats in a rotating way, one ends of the second rotating shaft (10) and the third rotating shaft (11) which are opposite are respectively connected with a second gear (12) in a transmission way, the two second gears (12) are respectively meshed with the first gear (9), a second fixed frame (13) which is vertically arranged is arranged at one side of the upper end face of the bottom plate (1), the lower end of one side face of the second fixed frame (13) is rotatably connected with a fourth rotating shaft (14), and connecting mechanisms (15) are respectively arranged between the fourth rotating shaft (14) and the third rotating shaft (11) and between the second, the fixed frame (13) of second internal rotation is connected with the reciprocal lead screw of second (16), and the screw thread has cup jointed second sliding block (17) on the reciprocal lead screw of second (16) outer wall, and the one end rigid coupling of second sliding block (17) has second telescopic link (18), and second measuring probe (19) are installed to the one end of second telescopic link (18).

2. The novel concrete crack width measuring device according to claim 1, wherein one end of the fourth rotating shaft (14) penetrates through the side wall of the second fixing frame (13) and is in transmission connection with a third gear (20), the lower end of the second reciprocating screw rod (16) is fixedly connected with a fourth gear (21), and the third gear (20) is meshed with the fourth gear (21).

3. The novel concrete crack width measuring device according to claim 1, wherein the connecting mechanism (15) comprises a connecting rod (151) connected between the first rotating shaft (7) and the second rotating shaft (10), a cavity is formed in the connecting rod (151), a sliding strip hole (152) is formed in the top end face of the connecting rod (151), a baffle (153) is fixed in the middle of the cavity of the connecting rod (151), sliding rods (154) are connected to both ends of the inside of the connecting rod (151) in a sliding manner, springs (155) are fixedly connected between the two sliding rods (154) and the baffle (153), and the two sliding rods (154) extend to the outside through outer walls of both ends of the connecting rod (151).

4. The novel concrete crack width measuring device according to claim 1, wherein a clamping groove opening is formed in one end face of each of the first rotating shaft (7), the second rotating shaft (10), the third rotating shaft (11) and the fourth rotating shaft (14), a tooth-shaped groove is formed in the bottom end of each clamping groove opening, a tooth-shaped block (156) is fixedly connected to each of two ends of the sliding rod (154), and the tooth-shaped block (156) is movably clamped with the tooth-shaped groove.

5. The novel concrete crack width measuring device is characterized in that a crack width measuring instrument (22) is installed on the upper end face of the bottom plate (1), and the output end of the crack width measuring instrument (22) is connected with the first measuring probe (6) and the second measuring probe (19) through conducting wires respectively.

6. The novel concrete crack width measuring device is characterized in that four universal wheels with brakes are mounted on the bottom surface of the bottom plate (1).