CN211122417U - A kind of concrete penetration resistance meter - Google Patents

Abstract

The utility model discloses a concrete penetration resistance instrument, which relates to the technical field of concrete detection equipment and aims to solve the technical problem of large labor force when the detection position is changed manually. , a test film is placed on the worktable for storing the concrete to be tested, a sliding groove is opened on the upper surface of the base along its length direction, and the bottom wall of the worktable is integrally formed with a sliding groove that can be inserted into the sliding groove. For the sliding block for sliding, a screw rod is arranged in the sliding groove to rotate along its length direction. The screw rod is driven by the first servo motor in the sliding groove. The screw rod penetrates the sliding block and is threaded with it. connection, the base is provided with a first control switch electrically connected to the first servo motor, the first control switch controls the start and stop of the first servo motor, so as to facilitate the worker to change the position of the object to be measured, reduce Labor advantage.

Description

A kind of concrete penetration resistance meter

technical field

The utility model relates to the technical field of concrete detection equipment, in particular to a concrete penetration resistance instrument.

Background technique

The concrete penetration resistance meter is an instrument for measuring the setting time of concrete. The existing penetration resistance meter moves the penetration needle vertically downward through the handle. When the penetration needle penetrates into the concrete mortar in the sample mold, the glue The mortar produces resistance to the penetration needle, and this force is displayed by the display device. With the increase of time, the penetration resistance of the concrete mortar increases accordingly, and the corresponding penetration resistance is measured through different test points to obtain the initial setting and intermediate setting of concrete. The strength of concrete under the three states of setting and final setting is tested.

The Chinese patent with the existing authorization announcement number CN209043753U provides a concrete penetration resistance meter, which includes a base, a bracket, a support arm, and the bracket is fixed on the base, the support arm is fixed on the bracket, and a pressure rod is hinged on the bracket. A fixed head is set on the support arm, and a penetration rod is fixed on the fixed head. The pressing rod is in conflict with the top of the fixed head. When testing is required, the worker places the concrete object to be tested on the base, and inserts the penetration rod into the fixed head. In the head, it is fixed again, so that the penetration rod is vertically facing the concrete object to be measured, and then the pressure rod is pressed downward, so that the pressure rod touches the top of the fixed head, so that the fixed head squeezes the penetration rod and moves toward the concrete object to be measured. , and penetrate into the concrete to be tested to realize the detection of concrete.

However, in order to ensure the accuracy of the test results, workers need to measure at least six times at different positions. Currently, when moving objects to be tested, they all need to be transported manually. Due to the heavy weight of concrete, workers are carrying It is very troublesome and labor-intensive, so it needs to be improved.

Utility model content

Aiming at the deficiencies of the prior art, the purpose of the present invention is to provide a concrete penetration resistance meter, which has the advantages of facilitating the worker to change the position of the object to be measured and reducing labor force.

To achieve the above object, the utility model provides the following technical solutions:

A concrete penetration resistance meter includes a base, a support and a support arm, the support is fixed on the base, the support arm is fixed on the support, the support is hinged with a pressure rod, and the support arm is provided with The penetration rod for the pressure rod to interfere; it is characterized in that: a worktable is arranged on the base, a test film for storing the concrete to be tested is placed on the worktable, and the upper surface of the base is opened along its length direction with a A sliding groove, the bottom wall of the worktable is integrally formed with a sliding block that can slide in the sliding groove, the outer side wall of the sliding block and the inner side wall of the sliding groove are attached to each other, and the sliding A screw rod is arranged in the groove to rotate along its length direction. The screw rod is driven by the first servo motor in the sliding groove. The screw rod penetrates the slider and is threadedly connected with it. A first control switch electrically connected to the servo motor, the first control switch controls the start and stop of the first servo motor.

By adopting the above technical solution, when testing is required, the test film is placed on the workbench, and the pressure rod is pressed down by manpower, so that the penetration rod moves in the direction of the test film and penetrates into the concrete in the test film, Realize the detection of concrete; when the worker needs to change the detection position, turn on the first control switch, the first servo motor works, and the first servo motor drives the screw to rotate, so that the slider slides on the screw along its length direction , the slider slides in the sliding groove, and the position of the worktable is replaced, so as to change the position of the test film, and the test film is not required to be transported by manpower, which greatly reduces the labor force.

Further, a pulley groove is symmetrically arranged on the bottom wall of the sliding block along its length direction, and a pulley that can abut against the bottom wall of the sliding groove is rotatably arranged in the pulley groove.

By adopting the above technical solution, the pulley is abutted against the bottom wall of the sliding groove, preventing the bottom wall of the slider from contacting the bottom wall of the sliding groove, thereby facilitating the sliding of the sliding block in the sliding groove and reducing the working time of the first servo motor. load and prolong its service life.

Further, the base is provided with a first scale line along its length direction.

By adopting the above technical solution, it is convenient for workers to record the detection position.

Further, a base is fixedly arranged on the worktable, the test film is located on the base, the bottom wall of the test film is fixedly provided with a rotating rod at its center, and the upper surface of the base is provided with a rotating rod. a rotating slot for inserting the rotating rod; a second servo motor is fixed on the worktable, and the rotating shaft of the second servo motor and the rotating rod are connected by a synchronous belt; the worktable is provided with a second servo motor The second control switch is electrically connected to the two servo motors, and the second control switch controls the start and stop of the second servo motor.

By adopting the above technical solution, the second control switch is turned on, the second servo motor works, and the second servo motor shaft drives the rotating rod to rotate, so that the test film is rotated on the base, and the detection position is further changed, which expands the The detection range of concrete in the test film is improved, and the detection effect is improved.

Further, the base is provided with a stabilizing hole for inserting the test film, and the inner side wall of the stabilizing hole and the outer side wall of the test film are attached to each other.

By adopting the above technical solution, when the worktable is moving and the test film is rotating, the outer side wall of the test film is abutted with the inner side wall of the stabilization hole, and the test film is more stable in the stabilization hole.

Further, the bottom wall of the stabilization hole is provided with an annular groove, the length direction of the annular groove is arranged along the circumferential direction of the stabilization hole, and a plurality of balls are arranged in the annular groove against the bottom wall of the test membrane.

By adopting the above technical solution, the bottom wall of the test film is abutted against the balls to avoid contact between the bottom wall of the test film and the bottom wall of the stable hole, thereby facilitating the rotation of the test film by the second servo motor and prolonging the service life of the equipment.

Further, a second scale line is arranged on the base along the circumferential direction of the stabilization hole.

By adopting the above technical solution, it is further convenient for workers to record the detection position of the concrete, and the detection accuracy is improved.

Further, a handle is arranged on the outer side wall of the test film to rotate symmetrically.

By adopting the above technical solution, after the detection is completed, the worker pulls the handle to facilitate the handling of the test film.

To sum up, the utility model has the following beneficial effects:

1. By turning on the first control switch, the first servo motor works, and the first servo motor drives the screw to rotate, so that the slider slides on the screw along its length direction, and the slider slides in the sliding groove. The position of the worktable is changed, so that the position of the test film can be changed, and no manpower is required to carry the test film, which greatly reduces the labor force;

2. By turning on the second control switch, the second servo motor works, and the shaft of the second servo motor drives the rotating rod to rotate, so that the test film rotates on the base, and the detection position is further changed, which expands the test film. The detection range of the inner concrete improves the detection effect;

3. Through the first scale line set on the base and the second scale line set on the base, it is convenient for workers to record the specific detection position of the concrete, and the measurement accuracy is improved.

Description of drawings

Fig. 1 is the structural representation of a kind of concrete penetration resistance meter in the embodiment;

2 is a schematic sectional view of a concrete penetration resistance meter in an embodiment;

FIG. 3 is an enlarged view of part A in FIG. 2 .

In the figure: 1. Base; 11. Bracket; 12. Pressing rod; 13. Sliding groove; 2. Supporting arm; 21. Penetrating rod; 3. Workbench; 31. Test film; 32. Slider; Base; 4, screw; 41, first servo motor; 42, first control switch; 43, first scale line; 5, pulley groove; 51, pulley; 6, rotating rod; 61, rotating groove; 7 71, the timing belt; 72, the second control switch; 73, the second scale line; 8, the stable hole; 81, the ring groove; 82, the ball; 9, the handle.

Detailed ways

The present utility model will be described in further detail below in conjunction with the accompanying drawings.

Example:

A concrete penetration resistance meter, referring to FIG. 1, it includes a base 1, a bracket 11 and a support arm 2, the bracket 11 is fixed on the base 1 by bolts, and the bracket 11 and the base 1 are perpendicular to each other, and the support arm 2 is fixed by welding On the bracket 11, a pressure rod 12 is hinged on the support arm 2, and a penetration rod 21 is provided on the support arm 2 for the pressure rod 12 to interfere. A workbench 3 is provided on which a test film 31 for storing the concrete to be tested is placed, and the cross section of the test film 31 is circular; when testing is required, the worker places the test film 31 with the concrete to be tested on the On the worktable 3, press down the pressure rod 12, the pressure rod 12 squeezes the penetration rod 21 to move toward the concrete object to be tested, and penetrates into the concrete object to be tested, so as to realize the detection of the concrete. The penetration rod 21 is separated from the concrete.

1 and 2 , the upper surface of the base 1 is provided with a sliding groove 13 along its length direction, and the bottom wall of the worktable 3 is integrally formed with a sliding block 32 that can slide in the sliding groove 13 . The sliding block 32 The outer side wall and the inner side wall of the sliding groove 13 fit each other. The sliding groove 13 is provided with a screw rod 4 that rotates along its length direction. One end of the screw rod 4 is inserted into the inner side wall of the sliding groove 13. The other end is connected with a first servo motor 41, the first servo motor 41 is fixedly arranged in the sliding groove 13 by bolts, the lead screw 4 penetrates the slider 32 and is threadedly connected with it, the base 1 is provided with the first servo motor 41 The first control switch 42 is electrically connected, and the first control switch 42 controls the start and stop of the first servo motor 41; when the worker needs to change the detection position, the first control switch 42 is turned on, the first servo motor 41 works, and the first servo The motor 41 drives the screw rod 4 to rotate, so that the slider 32 slides on the screw rod 4 along its length direction, the slider 32 slides in the sliding groove 13, and the position of the worktable 3 is replaced, so as to test the film The position of the slider 31 is changed; the base 1 is provided with a first scale line 43 along its length direction, and the first scale line 43 is used to record the specific position of the slider 32 in the sliding groove 13 .

Referring to FIG. 2 , the bottom wall of the slider 32 is symmetrically provided with a pulley groove 5 along its length direction. The pulley groove 5 is provided with a pulley 51 that can abut against the bottom wall of the sliding groove 13 through the rotation of the rotating shaft. The pulley 51 and the sliding groove 13 The bottom walls are abutted against each other to prevent the bottom wall of the slider 32 from contacting the bottom wall of the sliding groove 13 , thereby facilitating the sliding of the sliding block 32 in the sliding groove 13 .

2 and 3, a base 33 is fixed on the workbench 3, the test film 31 is located on the base 33, and the bottom wall of the test film 31 is fixed at its center with a rotating rod 6 by welding. The upper surface of 33 is provided with a rotating slot 61 for inserting the rotating rod 6; the worktable 3 is fixed with a second servo motor 7 by bolts, and the rotating shaft of the second servo motor 7 and the rotating rod 6 are phased by a synchronous belt 71. connection, the workbench 3 is provided with a second control switch 72 electrically connected to the second servo motor 7, the second control switch 72 controls the opening and stopping of the second servo motor 7; when the second control switch 72 is turned on, the second servo motor 7. The rotating shaft drives the rotating rod 6 to rotate, so that the test film 31 rotates on the base 33, the detection position is further changed, and the detection range of the concrete in the test film 31 is expanded.

2 and 3, the base 33 is provided with a fixing hole 8 for inserting the test film 31, the inner side wall of the fixing hole 8 and the outer side wall of the test film 31 are attached to each other, and the worktable 3 is moving, and When the test film 31 is rotated, the outer side wall of the test film 31 is in contact with the inner side wall of the stabilization hole 8, and the test film 31 is more stable in the stabilization hole 8; the bottom wall of the stabilization hole 8 is provided with a ring groove 81, and the ring groove 81 The length direction is arranged along the circumferential direction of the stabilization hole 8 , and a number of balls 82 are placed in the ring groove 81 , which abut against the bottom wall of the test film 31 , so that the second servo motor 7 can rotate the test film 31 .

1, the base 33 is provided with a second scale line 73 along the circumferential direction of the stable hole 8, which is convenient for workers to record the position after the rotation of the test film 31, which further improves the detection accuracy; A handle 9 is provided for symmetrical rotation. After the detection is completed, the worker pulls the handle 9 to facilitate the handling of the test film 31 .

This specific embodiment is only an explanation of the present utility model, and it is not a limitation of the present utility model. Those skilled in the art can make modifications to the present embodiment without creative contribution as needed after reading this specification, but as long as the utility model is used in the present invention All new types of claims are protected by the patent law.

Claims (8)

1. A concrete penetration resistance meter, comprising a base (1), a support (11) and a support arm (2), the support (11) is fixedly arranged on the base (1), and the support arm (2) is fixed On the bracket (11), a compression rod (12) is hinged on the bracket (11), and a penetration rod (21) is arranged on the support arm (2) for the compression rod (12) to interfere; it is characterized by In that: a workbench (3) is arranged on the base (1), a test membrane (31) for storing the concrete to be tested is placed on the workbench (3), and the upper surface of the base (1) is along its length. A sliding groove (13) is opened in the direction, and the bottom wall of the worktable (3) is integrally formed with a sliding block (32) that can slide in the sliding groove (13). The sliding block (32) The outer side wall of the sliding groove (13) is in contact with the inner side wall of the sliding groove (13), and a screw (4) is rotated in the sliding groove (13) along its length direction, and the screw (4) passes through the sliding groove. The first servo motor (41) in (13) is driven, the lead screw (4) penetrates the slider (32) and is threadedly connected with it, and the base (1) is provided with a first servo motor (41) The first control switch (42) is electrically connected, and the first control switch (42) controls the start and stop of the first servo motor (41). 2. A concrete penetration resistance meter according to claim 1, characterized in that: the bottom wall of the slider (32) is symmetrically provided with a pulley groove (5) along its length direction, and the pulley groove (5) ) is rotatably provided with a pulley (51) which can abut against the bottom wall of the sliding groove (13). 3 . The concrete penetration resistance meter according to claim 1 , wherein the base ( 1 ) is provided with a first scale line ( 43 ) along its length direction. 4 . 4. A concrete penetration resistance meter according to claim 1, characterized in that: a base (33) is fixedly arranged on the workbench (3), and the test film (31) is located on the base (33). ), the bottom wall of the test film (31) is fixedly provided with a rotating rod (6) at its center, and the upper surface of the base (33) is provided with a rotating groove for the rotating rod (6) to be inserted. (61); a second servo motor (7) is fixedly arranged on the worktable (3), and the rotating shaft of the second servo motor (7) and the rotating rod (6) are connected by a synchronous belt (71) ; The workbench (3) is provided with a second control switch (72) electrically connected with the second servo motor (7), and the second control switch (72) controls the opening and closing of the second servo motor (7). stop. 5. A concrete penetration resistance meter according to claim 4, characterized in that: the base (33) is provided with a stabilization hole (8) for inserting the test film (31), and the stabilization hole (8) is provided on the base (33). The inner sidewall of the hole (8) and the outer sidewall of the test film (31) are attached to each other. 6. A concrete penetration resistance meter according to claim 5, wherein the bottom wall of the stabilization hole (8) is provided with a ring groove (81), and the length direction of the ring groove (81) is along the The stabilizing hole (8) is arranged in the circumferential direction, and a plurality of balls (82) abutting against the bottom wall of the test membrane (31) are arranged in the annular groove (81). 7 . The concrete penetration resistance meter according to claim 5 , wherein the base ( 33 ) is provided with a second scale line ( 73 ) along the circumferential direction of the stabilization hole ( 8 ). 8 . 8 . The concrete penetration resistance meter according to claim 1 , wherein a handle ( 9 ) is arranged on the outer side wall of the test membrane ( 31 ) symmetrically and rotated. 9 .

Images