CN210243409U

CN210243409U - Concrete hardness detection device

Info

Publication number: CN210243409U
Application number: CN201921105103.9U
Authority: CN
Inventors: Xiaozhen Zhang; 张小贞
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-07-16
Filing date: 2019-07-16
Publication date: 2020-04-03
Anticipated expiration: 2029-07-16

Abstract

The utility model discloses a concrete hardness detection device, including the base, even a plurality of screw hole has been seted up on the base top surface, and the spiro union is installed with the test bar in every screw hole, and the test bar top is the tip, and fixed cover has the hexagonal to twist to move the head on the test bar, and base top surface both sides symmetry respectively are fixed with the bracing piece. This device uses through the cooperation between motor and the pneumatic cylinder, can let concrete sample board free fall again after concrete sample board lifting to certain height, and the concrete sample board of free fall can contact with the measuring staff top after falling to certain height, because concrete sample board free fall, so the concrete sample board can with the powerful contact of measuring staff top, and then can effectually detect out the testing data when the concrete sample board receives high strength burst force, and because articulated setting between planker side and the L template side, the effectual convenient purpose of dismantling the concrete sample board that falls on the planker that has reached, the effectual work efficiency that has improved.

Description

Concrete hardness detection device

Technical Field

The utility model relates to a road administration inspection and acceptance field, concretely relates to concrete hardness detection device.

Background

The road and bridge generally comprises a plurality of parts such as a roadbed, a pavement, a bridge, tunnel engineering, traffic engineering facilities and the like, concrete is a general name of engineering composite materials formed by cementing aggregate into a whole by cementing materials, and the term of concrete generally refers to cement as the cementing materials and sand and stone as the aggregate; the cement concrete, also called as common concrete, is obtained by mixing with water (which may contain additives and admixtures) according to a certain proportion and stirring, and is widely applied to civil engineering. Road and bridge is after the completion, the staff need use concrete detection device to detect the concrete, but current concrete detection device is detecting concrete compressive capacity, the user need control the slow extrusion concrete model of pneumatic cylinder, the reaction force that the pneumatic cylinder received is great relatively like this, so the pneumatic cylinder is impaired easily, and can only slowly extrude through the pneumatic cylinder, can not give the proruption dynamics of high strength in a certain department of model, and then can't detect out the detection data when the concrete model receives the proruption dynamics of high strength, consequently, the urgent need for a novel concrete hardness detection device.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem existing in the prior art, the utility model provides a concrete hardness detection device.

The utility model discloses a realize through following technical scheme:

a concrete hardness detection device comprises a base, wherein a plurality of threaded holes are uniformly formed in the top surface of the base, a detection rod is screwed in each threaded hole, the top end of the detection rod is a pointed end, hexagonal screwing heads are fixedly sleeved on the detection rod, supporting rods are symmetrically fixed on two sides of the top surface of the base respectively, check rings are sleeved on the supporting rods in a sliding manner, springs are fixedly arranged between the check rings and the top surface of the base, the springs are sleeved on the supporting rods, the top ends of the two supporting rods are fixedly provided with the same fixed plate, two mounting plates are symmetrically fixed on the bottom surface of the fixed plate, a motor is fixedly installed at one side end of one mounting plate, a lead screw is fixed on an output shaft of the motor by penetrating through the mounting plates, the output shaft of the motor is rotatably connected with the contact part of the mounting plates, a rotating block is fixed at the, the guide rod is fixedly connected between opposite side walls of the two mounting plates, the guide rod and the lead screw are arranged in parallel, a lead screw nut is sleeved on the lead screw and is in threaded connection with the lead screw, a connecting block is fixed at the top end of the lead screw nut, a guide cylinder is fixed at the top end of the connecting block, the guide cylinder is sleeved on the guide rod and is in sliding connection with the guide rod, a hydraulic cylinder is fixedly installed at the bottom end of the lead screw nut, an inserting rod is fixed at the bottom end of the telescopic end of the hydraulic cylinder, a circular ring is sleeved on the inserting rod, the diameter of the inner ring of the circular ring is larger than that of the inserting rod by 3-5cm, a transverse plate is fixed at the bottom end of the circular ring, sleeves are symmetrically fixed at two sides of the transverse plate respectively, the two sleeves are sleeved on the two supporting rods respectively and are in sliding connection with, two sides of the carriage are respectively jointed and slidably connected with the vertical plates of the two L-shaped plates, one end of the carriage is fixed with a U-shaped handle, the other end of the carriage is hinged with the lateral ends of the transverse plates of the two L-shaped plates through two hinges respectively, a plurality of through holes are uniformly arranged on the carriage, the number of the through holes is the same as that of the threaded holes, the open position of each through hole is arranged corresponding to the open position of one threaded hole, a concrete sample plate is attached and placed on the top surface of the carriage, the two sides of the top surface of the concrete sample plate are symmetrically attached with pressure plates respectively, a first rotating block is embedded in the center of the top surface of the pressure plates, the first rotating block is rotatably connected with the contact part of the pressure plate, a threaded rod is fixed at the top end of the first rotating block, the threaded rod top pierces through diaphragm bottom fixedly connected with handle, threaded rod and diaphragm contact department threaded connection.

Preferably, the motor is electrically connected with an external power supply through a wire.

Preferably, the hydraulic cylinder is connected with an external hydraulic cylinder pipeline through a guide pipe.

Preferably, the diameter of the through hole is 2-5mm larger than the maximum diameter of the detection rod.

Compared with the prior art, the beneficial effects of the utility model are that: this device uses through the cooperation between motor and the pneumatic cylinder, can let concrete sample board free fall again after concrete sample board lifting to certain height, and the concrete sample board of free fall can contact with the measuring staff top after falling to certain height, because concrete sample board free fall, so the concrete sample board can with the powerful contact of measuring staff top, and then can effectually detect out the testing data when the concrete sample board receives high strength burst force, and because articulated setting between planker side and the L template side, the effectual convenient purpose of dismantling the concrete sample board that falls on the planker that has reached, the effectual work efficiency that has improved.

Drawings

FIG. 1 is a block diagram of the structure of the present invention;

fig. 2 is a schematic view of a part of the structure diagram 1 of the present invention.

In the figure: the device comprises a base 1, a threaded hole 2, a detection rod 3, a hexagonal screwing head 4, a support rod 5, a retainer ring 6, a spring 7, a fixing plate 8, a mounting plate 9, a guide rod 10, a motor 11, a lead screw 12, a rotating block 13, a guide cylinder 14, a connecting block 15, a lead screw nut 16, a hydraulic cylinder 17, an inserting rod 18, a circular ring 19, a transverse plate 20, a sleeve 21, an L-shaped plate 22, a planker 23, a hinge 24, a U-shaped handle 25, a concrete sample plate 26, a pressing plate 27, a first rotating block 28, a threaded rod 29, a handle 30 and a through hole 31.

Detailed Description

The invention will be described in further detail with reference to the following detailed description and accompanying drawings:

as shown in fig. 1 and 2, a concrete hardness testing device comprises a base 1, wherein a plurality of threaded holes 2 are uniformly formed in the top surface of the base 1, a testing rod 3 is installed in each threaded hole 2 in a threaded manner, the top end of the testing rod 3 is a pointed end, a hexagonal screwing head 4 is fixedly sleeved on the testing rod 3, supporting rods 5 are symmetrically fixed on two sides of the top surface of the base 1 respectively, a retainer ring 6 is sleeved on each supporting rod 5 in a sliding manner, a spring 7 is fixedly arranged between each retainer ring 6 and the top surface of the base 1, the spring 7 is sleeved on each supporting rod 5, the top ends of the two supporting rods 5 are fixedly provided with the same fixing plate 8, two mounting plates 9 are symmetrically fixed on the bottom surface of each fixing plate 8, a motor 11 is fixedly installed at the side end of one mounting plate 9, an output shaft of each motor 11 penetrates through the mounting plate 9 and is fixedly provided with a, the other end of the screw 12 is fixed with a rotating block 13, the rotating block 13 is embedded into and rotationally connected with the side wall of another mounting plate 9, a guide rod 10 is fixedly connected between the opposite side walls of the two mounting plates 9, the guide rod 10 is arranged in parallel with the screw 12, the screw 12 is sleeved with a screw nut 16, the screw nut 16 is in threaded connection with the screw 12, the top end of the screw nut 16 is fixed with a connecting block 15, the top end of the connecting block 15 is fixed with a guide cylinder 14, the guide cylinder 14 is sleeved on the guide rod 10 and is in sliding connection with the guide cylinder, the bottom end of the screw nut 16 is fixedly provided with a hydraulic cylinder 17, the bottom end of the telescopic end of the hydraulic cylinder 17 is fixed with an inserting rod 18, the inserting rod 18 is sleeved with a ring 19, the diameter of the inner ring 19 is larger than the diameter of the inserting rod 18 by 3-5cm, the bottom end of the ring 19 is fixed, two sleeves 21 are respectively sleeved on two support rods 5 and are in sliding connection with the support rods, two L-shaped plates 22 are symmetrically fixed on the bottom surface of a transverse plate 20, the transverse plates of the two L-shaped plates 22 are attached and placed with a same carriage 23, two sides of the carriage 23 are respectively attached and slidably connected with vertical plates of the two L-shaped plates 22, one end of the carriage 23 is fixed with a U-shaped handle 25, the other end of the carriage 23 is hinged with the transverse plate side ends of the two L-shaped plates 22 through two hinges 24, the carriage 23 is uniformly provided with a plurality of through holes 31, the number of the through holes 31 is the same as that of the threaded holes 2, the opening position of each through hole 31 corresponds to the opening position of one threaded hole 2, a concrete sample plate 26 is attached to the top surface of the carriage 23, pressing plates 27 are symmetrically attached to two sides of the top surface of the concrete sample plate 26, and a first rotating block 28 is embedded, the first rotating block 28 is rotatably connected with a contact part of the pressing plate 27, a threaded rod 29 is fixed at the top end of the first rotating block 28, a handle 30 is fixedly connected to the top end of the threaded rod 29 penetrating through the bottom end of the transverse plate 20, and the threaded rod 29 is in threaded connection with the contact part of the transverse plate 20.

The motor 11 is electrically connected with an external power supply through a lead.

The hydraulic cylinder 17 is connected with an external hydraulic cylinder pipeline through a guide pipe.

The diameter of the through hole 31 is 2-5mm larger than the maximum diameter of the detection rod 3.

The working principle is as follows: when the utility model is used, firstly, as shown in fig. 1, a concrete sample plate to be detected is placed on the top surface of the planker 23, then the threaded rod 29 is screwed by the handle 30, so that the pressing plate 27 extrudes the top surface of the concrete sample plate 26, the concrete sample plate 26 is clamped and fixed on the planker 23, then the telescopic end of the hydraulic cylinder 17 is controlled by the external hydraulic station to retract to the maximum degree, in the process, the inserted rod 18 fixed on the telescopic end of the hydraulic cylinder 17 can drive the circular ring 19 to ascend, the horizontal plate 20 is synchronously driven to ascend together when the circular ring 19 ascends, the planker 23 and the concrete sample plate 26 placed on the planker 23 are further lifted to a certain height, then the motor 11 is started, the lead screw 12 drives the lead screw nut 16 to move towards the motor 11, so that the lead screw nut 16 can synchronously drive the hydraulic cylinder 17 and the inserted rod 18 fixedly arranged at the lower end of the lead screw, and then the inserting rod 18 is slowly moved out of the ring 19, when the inserting rod 18 is moved out of the ring 19, under the weight of all parts fixedly connected on the concrete sample plate 26 and the transverse plate 20, the concrete sample plate 26 and the transverse plate 20 can be quickly and freely fallen, in the process, the two sleeves 21 can effectively play a role of guiding, when the concrete sample plate 26 and the transverse plate 20 are quickly and freely fallen to a certain height, the tip of the top end of the detecting rod 3 on the base 1 is propped against the bottom surface of the concrete sample plate 26 through the corresponding through hole 31, then the damage condition of the concrete sample plate 26 is observed, then the damage condition of the concrete sample plate 26 is compared with the qualified damage data of the concrete sample plate, so that whether the concrete sample plate 26 is qualified is detected, because the detecting rod 3 is in threaded connection with the threaded hole 2, the detecting rod 3 can be disassembled or assembled by screwing the hexagonal screwing head 4, and then can dismantle or install the test rod 3 according to the demand of detection conveniently, therefore can effective control the installation position and quantity of the test rod 3, the effective practicability of this apparatus is improved, after this concrete model 26 is detected and finished, through the threaded spindle 29 of handle 30 twist, make the pressing plate 27 rise its top surface and laminate with the bottom surface of diaphragm 20, then lift and move one end of planker 23 through the U-shaped handle 25, because another end of planker 23 is articulated with diaphragm side end of L template 22 through hinge 24, so when lifting and moving planker 23 through the U-shaped handle 25, the planker 23 will be inclined to the side end, and then the concrete model 26 placed on the planker 23 top surface will fall from planker 23, and then the effective purpose of unloading the concrete model 26 that has reached conveniently, then control the flexible end extension of the pneumatic cylinder 17, make the inserted bar 18 aim at the centre of a circle of the ring 19, then the motor 11 is started again, so that the lead screw 12 drives the lead screw nut 16 to move towards the direction of the rotating block 13, the side end of the inserting rod 18 can be inserted into the circular ring 19 again, when the inserting rod 18 is inserted into the circular ring 19 for about two thirds of the length, the motor 11 is stopped again, and thus the detection work of the next concrete sample plate 26 can be carried out according to the above description, due to the arrangement of the check rings 6 and the springs 7, the two check rings 6 can firstly support the two sleeves 21 under the acting force of the two springs 7, the weight of the transverse plate 20 and all parts fixed on the transverse plate 20 can be effectively buffered, the bottom ends of the two L-shaped plates 22 can be prevented from directly contacting with the top surface of the base 1, and the buffering effect can.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a concrete hardness detection device, includes base (1), its characterized in that: the detection device is characterized in that a plurality of threaded holes (2) are uniformly formed in the top surface of the base (1), a detection rod (3) is installed in each threaded hole (2) in a threaded manner, the top end of the detection rod (3) is a pointed end, a hexagonal screwing head (4) is fixedly sleeved on the detection rod (3), supporting rods (5) are symmetrically fixed to two sides of the top surface of the base (1) respectively, a check ring (6) is sleeved on each supporting rod (5) in a sliding manner, a spring (7) is fixedly arranged between each check ring (6) and the top surface of the base (1), the spring (7) is sleeved on each supporting rod (5), the top ends of the two supporting rods (5) are fixedly provided with the same fixing plate (8), two mounting plates (9) are symmetrically fixed on the bottom surface of each fixing plate (8), a motor (11) is fixedly installed at one side end of one mounting plate (9), and a, the output shaft of the motor (11) is rotatably connected with the contact part of the mounting plate (9), a rotating block (13) is fixed at the other end of the screw rod (12), the rotating block (13) is embedded into the side wall of another mounting plate (9) and is rotatably connected with the side wall of the other mounting plate, a guide rod (10) is fixedly connected between the opposite side walls of the two mounting plates (9), the guide rod (10) is arranged in parallel with the screw rod (12), a screw nut (16) is sleeved on the screw rod (12), the screw nut (16) is in threaded connection with the screw rod (12), a connecting block (15) is fixed at the top end of the screw nut (16), a guide cylinder (14) is fixed at the top end of the connecting block (15), the guide cylinder (14) is sleeved on the guide rod (10) and is in sliding connection with the guide rod (10), a hydraulic cylinder (17) is fixedly installed at the bottom end of the screw nut (16, a circular ring (19) is sleeved on the inserted rod (18), the diameter of the inner ring of the circular ring (19) is larger than that of the inserted rod (18) by 3-5cm, a transverse plate (20) is fixed at the bottom end of the circular ring (19), sleeves (21) are symmetrically fixed on two sides of the transverse plate (20) respectively, the two sleeves (21) are sleeved on the two support rods (5) respectively and are in sliding connection with the two support rods, two L-shaped plates (22) are symmetrically fixed on the bottom surface of the transverse plate (20), the transverse plates of the two L-shaped plates (22) are attached with a same carriage (23), two sides of the carriage (23) are respectively attached with vertical plates of the two L-shaped plates (22) in sliding connection, a U-shaped handle (25) is fixed at one end of the carriage (23), the other end of the carriage (23) is hinged with the transverse plates of the two L-shaped plates (22) through two hinges (24), a plurality of through holes (, the quantity of a plurality of through-hole (31) is the same with the quantity of a plurality of screw hole (2), and the position of seting up of every through-hole (31) sets up with the corresponding setting in the position of seting up of a screw hole (2), concrete model (26) have been placed in the laminating on planker (23) top surface, concrete model (26) top surface both sides symmetry respectively laminate have clamp plate (27), clamp plate (27) top surface central authorities imbed first rotatory piece (28), first rotatory piece (28) and clamp plate (27) contact department swivelling joint, first rotatory piece (28) top is fixed with threaded rod (29), threaded rod (29) top pierces through diaphragm (20) bottom fixedly connected with handle (30), threaded rod (29) and diaphragm (20) contact department threaded connection.

2. The concrete hardness detection device according to claim 1, wherein: the motor (11) is electrically connected with an external power supply through a lead.

3. The concrete hardness detection device according to claim 1, wherein: the hydraulic cylinder (17) is connected with an external hydraulic cylinder pipeline through a guide pipe.

4. The concrete hardness detection device according to claim 1, wherein: the diameter of the through hole (31) is 2-5mm larger than the maximum diameter of the detection rod (3).