Reinforced concrete structure resistivity tester

Abstract

The utility model discloses a reinforced concrete structure resistivity measuring instrument, specifically relates to the technical field of resistivity measuring instruments, including a support plate, wherein a measuring component for measuring the resistivity of a reinforced concrete structure is provided on the top of the support plate; a protective component for preventing collision and impact is provided outside the measuring component; the protective component includes two fixed seats distributed at intervals, both of which are provided on the top of the support plate, and a first threaded rod is provided between the front ends of the two fixed seats. The utility model drives the first threaded rod to drive two connecting seats to move inward at the same time through a micro motor, so that the connecting bracket connected to the connecting seat can drive the packaging shell to move inward, so that the two packaging shells can perform all-round shielding and protection on the measuring component, avoid deformation and damage to the measuring component caused by collision and impact, and ensure the integrity of the measuring component and the subsequent use effect.

Description

Technical Field

[0001] The utility model relates to the technical field of resistivity measuring instruments, in particular to a reinforced concrete structure resistivity measuring instrument. Background Art

[0002] The corrosion of steel bars in concrete is a phenomenon caused by an electrochemical reaction, which generates electric current and causes the steel bars to corrode. Therefore, it is possible to infer whether the steel bars are corroded by testing the resistivity of the concrete.

[0003] As shown in the application document with the prior art publication number CN220289471U, it includes a support base, a lifting box is fixedly installed on the top of the support base, a threaded rod is rotatably installed between the top and the bottom of the lifting box, a screw nut is threadedly sleeved on the threaded rod, a lifting horizontal plate is fixedly connected to the screw nut, an insulating plate is fixedly installed at the bottom of the lifting horizontal plate, and a plurality of fixed probes are fixedly installed at the bottom of the insulating plate. This technical solution is provided with a threaded rod and a screw nut, so that when the rotating motor rotates, the lifting horizontal plate is driven to move up and down, and then the detection copper column is driven to move up and down, and then the position of the detection copper column can be adjusted according to the concrete of different heights. By providing the detection copper column, a water-soaked sponge is inserted into the card slot when in use, so that the bottom end of the detection copper column is in contact with the concrete to be detected, and the detection copper column is in close contact with the concrete to be detected under the action of the telescopic spring.

[0004] However, the fixed probe in the above technical solution is often exposed to the outside, which causes external collision and impact factors to cause deformation and damage to the fixed probe, thereby affecting the use effect of the fixed probe. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the utility model provides a reinforced concrete structure resistivity measuring instrument, which drives the first threaded rod to drive the two connecting seats to move inward at the same time through a micro motor, so that the connecting bracket connected to the connecting seat can drive the packaging shell to move inward, so as to achieve all-round shielding and protection of the measuring component by the two packaging shells, avoid deformation and damage to the measuring component caused by collision and impact, ensure the integrity of the measuring component and subsequent use effect, so as to solve the problems arising from the above-mentioned background technology.

[0006] To achieve the above object, the utility model provides the following technical solutions: a reinforced concrete structure resistivity measuring instrument, comprising a support plate, wherein the top of the support plate is provided with a measuring component for measuring the resistivity of the reinforced concrete structure;

[0007] The measuring component is provided with a protective component for preventing collision and impact outside;

[0008] The protection component includes two fixed seats distributed at intervals, the two fixed seats are both arranged on the top of the support plate, a first threaded rod is provided between the front ends of the two fixed seats, both ends of the first threaded rod are movably connected to the two fixed seats through bearings, the first threaded rod is externally threadedly connected to two connecting seats, the two connecting seats are symmetrically distributed about the central axis of the first threaded rod, a connecting bracket is installed on one side of the two connecting seats away from each other, and a packaging shell is installed on the side of the connecting bracket away from the connecting seat;

[0009] The threads at both ends of the first threaded rod have opposite directions, and the threads at both ends of the first threaded rod are symmetrically distributed about the central axis of the first threaded rod;

[0010] A micro motor is provided on one side of one of the fixing seats away from the first threaded rod, and an output shaft of the micro motor passes through the fixing seat and is fixed to the first threaded rod.

[0011] In a preferred embodiment, the measuring component includes an adjusting plate, which is arranged on the top of the supporting plate, an insulating plate is installed at the bottom of the front end of the adjusting plate, and a plurality of probes distributed at intervals are installed at the bottom of the insulating plate; each probe includes a sleeve, which is installed at the bottom of the insulating plate, a movable plate is provided inside the sleeve, a spring is provided at the top of the movable plate, a copper column is installed at the bottom of the movable plate, the bottom end of the copper column passes through the sleeve and extends to the bottom of the sleeve, and a groove is provided at the bottom of the copper column; the insulating plate and the plurality of probes are arranged inside two packaging shells, and the connecting seat is arranged at the top of the adjusting plate.

[0012] In a preferred embodiment, a fixing frame is provided at the rear end of the adjusting plate, and the bottom end of the fixing frame is installed together with the top end of the front end of the supporting plate, and a second threaded rod is provided inside the fixing frame, and the top and bottom ends of the second threaded rod are movably connected to the inner wall of the fixing frame through bearings, and positioning columns are provided on both sides of the second threaded rod, and the top and bottom ends of the positioning columns are fixed to the inner wall of the fixing frame, and the rear end of the adjusting plate is sleeved on the two positioning columns and the outside of the second threaded rod, and the outside of the second threaded rod is threadedly connected to the inner wall of the adjusting plate; a servo motor is installed on the top of the fixing frame, and the output shaft of the servo motor passes through the fixing frame and is fixed to the top end of the second threaded rod, and the rear end of the fixing seat is fixed to the front side of the top end of the fixing frame.

[0013] In a preferred embodiment, both the front and rear sides of the first threaded rod are provided with limiting columns, both ends of the limiting columns are respectively fixed to two fixing seats, and the front and rear ends of the connecting seat are respectively sleeved on the outside of the two limiting columns.

[0014] In a preferred embodiment, a controller and a battery are installed on the top of the rear end of the support plate, and the controller is arranged on the rear side of the battery.

[0015] In a preferred embodiment, two handles are installed on the top of the rear end of the support plate, and the two handles are symmetrically distributed about the central axis of the support plate. A plurality of universal wheels are installed on the bottom of the support plate, and the plurality of universal wheels are evenly spaced.

[0016] Technical effects and advantages of the utility model:

[0017] The first threaded rod is driven by a micro motor to drive the two connecting seats to move inward at the same time, so that the connecting bracket connected to the connecting seat can drive the packaging shell to move inward, so that the two packaging shells can provide all-round shielding and protection for the measuring component, avoid deformation and damage to the measuring component caused by collision and impact, and ensure the integrity of the measuring component and subsequent use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a rear view of the fixing frame of the utility model;

[0020] Figure 3 It is a schematic diagram of the packaging shell of the utility model after adjustment;

[0021] Figure 4 It is a cross-sectional view of the probe of the utility model;

[0022] Figure 5 It is the front view of the packaging shell of the utility model.

[0023] The reference numerals are: 1, support plate; 2, fixing seat; 3, first threaded rod; 4, connecting seat; 5, connecting bracket; 6, packaging shell; 7, micro motor; 8, adjustment plate; 9, insulating plate;

[0024] 10. Probe; 101. Sleeve; 102. Movable plate; 103. Spring; 104. Copper column; 105. Embossed groove;

[0025] 11. Fixed frame; 12. Second threaded rod; 13. Positioning column; 14. Servo motor; 15. Limiting column; 16. Controller; 17. Battery; 18. Handle; 19. Universal wheel. DETAILED DESCRIPTION

[0026] 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.

[0027] Refer to the instruction manual Figure 1-5 The utility model provides a reinforced concrete structure resistivity measuring instrument, comprising a support plate 1, wherein a measuring component for measuring the resistivity of the reinforced concrete structure is provided on the top of the support plate 1;

[0028] like Figure 3 and 4 As shown, the measuring assembly includes an adjusting plate 8, which is arranged on the top of the supporting plate 1, an insulating plate 9 is installed at the bottom of the front end of the adjusting plate 8, and a plurality of probes 10 distributed at intervals are installed at the bottom of the insulating plate 9; each probe 10 includes a sleeve 101, which is installed at the bottom of the insulating plate 9, a movable plate 102 is arranged inside the sleeve 101, a spring 103 is arranged at the top of the movable plate 102, a copper column 104 is installed at the bottom of the movable plate 102, the bottom end of the copper column 104 passes through the sleeve 101 and extends to the bottom of the sleeve 101, and an embedding groove 105 is opened at the bottom of the copper column 104; the insulating plate 9 and the plurality of probes 10 are all arranged inside two packaging shells 6, the connecting seat 4 is arranged at the top of the adjusting plate 8, the sponge is soaked and put into the front groove, and then the adjusting plate 8 is driven downward by the rotation of the second threaded rod 12, so that the probe 10 on the insulating plate 9 can measure the resistivity of the reinforced concrete structure.

[0029] like Figure 1-3 As shown, a fixing frame 11 is provided at the rear end of the adjusting plate 8, and the bottom end of the fixing frame 11 is installed together with the top of the front end of the supporting plate 1, and a second threaded rod 12 is provided inside the fixing frame 11, and the top and bottom ends of the second threaded rod 12 are movably connected to the inner wall of the fixing frame 11 through bearings, and positioning columns 13 are provided on both sides of the second threaded rod 12, and the top and bottom ends of the positioning columns 13 are fixed to the inner wall of the fixing frame 11, and the rear end of the adjusting plate 8 is sleeved on the two positioning columns 13 and the outside of the second threaded rod 12, and the outside of the second threaded rod 12 is threadedly connected with the inner wall of the adjusting plate 8; a servo motor 14 is installed on the top of the fixing frame 11, and the output shaft of the servo motor 14 passes through the fixing frame 11 and is fixed to the top of the second threaded rod 12, and the rear end of the fixing seat 2 is fixed to the front side of the top end of the fixing frame 11, and the second threaded rod 12 is driven to rotate by the servo motor 14, and the second threaded rod 12 drives the adjusting plate 8 limited by the positioning columns 13 to move up and down, so that the height of the measuring component can be adjusted.

[0030] In order to facilitate shielding and protecting the probe 10, a protective component for preventing collision and impact is provided outside the measuring component;

[0031] like Figure 1 , 2As shown in , 3 and 5, the protection component includes two fixed seats 2 distributed at intervals, the two fixed seats 2 are both arranged on the top of the support plate 1, and a first threaded rod 3 is arranged between the front ends of the two fixed seats 2, and both ends of the first threaded rod 3 are movably connected to the two fixed seats 2 through bearings respectively, and the first threaded rod 3 is externally threadedly connected to two connecting seats 4, and the two connecting seats 4 are symmetrically distributed about the central axis of the first threaded rod 3, and a connecting bracket 5 is installed on the side away from the two connecting seats 4, and a packaging shell 6 is installed on the side of the connecting bracket 5 away from the connecting seat 4; the threads at the two ends of the first threaded rod 3 are opposite, and the first threaded rod 3, the threads at both ends are symmetrically distributed about the central axis of the first threaded rod 3; a micro motor 7 is provided on one side of one of the fixing seats 2 away from the first threaded rod 3, the output shaft of the micro motor 7 passes through the fixing seat 2 and is fixed to the first threaded rod 3, and limiting columns 15 are provided on both the front and rear sides of the first threaded rod 3, and the two ends of the limiting columns 15 are respectively fixed to the two fixing seats 2, and the front and rear ends of the connecting seat 4 are respectively sleeved on the outside of the two limiting columns 15. Through the setting of the limiting columns 15, it is convenient to limit the connecting seat 4, ensure the stability of the connecting seat 4 during movement, and avoid the displacement of the connecting seat 4 during movement.

[0032] like Figure 1 and 2 As shown, a controller 16 and a battery 17 are installed on the top of the rear end of the support plate 1. The controller 16 is arranged on the rear side of the battery 17. Through the setting of the battery 17, the servo motor 14, the micro motor 7 and the measuring component in the utility model can be powered. The setting of the controller 16 is convenient for the staff to operate and control the utility model. Two handles 18 are installed on the top of the rear end of the support plate 1. The two handles 18 are symmetrically distributed about the central axis of the support plate 1. A plurality of universal wheels 19 are installed on the bottom of the support plate 1. The plurality of universal wheels 19 are evenly spaced. The support plate 1 is supported by the plurality of universal wheels 19, so that the staff can operate the handles 18 to push the utility model to move.

[0033] The first threaded rod 3 is driven by the micro motor 7 to drive the two connecting seats 4 to move outward at the same time, so that the connecting bracket 5 connected to the connecting seat 4 can drive the packaging shell 6 away from the measuring component, thereby not affecting the effect of the subsequent downward measurement of the measuring component. When the first threaded rod 3 drives the two connecting seats 4 to move inward at the same time, the two connecting brackets 5 respectively drive the corresponding packaging shell 6 to be mounted on the outside of the measuring component, so that the measuring component can be fully shielded and protected, avoiding deformation and damage to the measuring component caused by collision and impact, thereby ensuring the integrity and use effect of the measuring component.

[0034] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A reinforced concrete structure resistivity measuring instrument, comprising a support plate (1), characterized in that: The top of the support plate (1) is provided with a measuring component for measuring the resistivity of the reinforced concrete structure; The measuring component is provided with a protective component for preventing collision and impact outside; The protection component comprises two fixed seats (2) arranged at intervals, the two fixed seats (2) are both arranged on the top of the support plate (1), a first threaded rod (3) is arranged between the front ends of the two fixed seats (2), both ends of the first threaded rod (3) are movably connected to the two fixed seats (2) respectively through bearings, the first threaded rod (3) is externally threadedly connected to two connecting seats (4), the two connecting seats (4) are symmetrically distributed about the central axis of the first threaded rod (3), a connecting bracket (5) is installed on the side away from the two connecting seats (4), and a packaging shell (6) is installed on the side of the connecting bracket (5) away from the connecting seat (4); The threads at both ends of the first threaded rod (3) have opposite thread directions, and the threads at both ends of the first threaded rod (3) are symmetrically distributed about the central axis of the first threaded rod (3); A micro motor (7) is provided on one side of one of the fixing seats (2) away from the first threaded rod (3); an output shaft of the micro motor (7) passes through the fixing seat (2) and is fixed to the first threaded rod (3).

2. The reinforced concrete structure resistivity measuring instrument according to claim 1, characterized in that: The measuring assembly comprises an adjusting plate (8), the adjusting plate (8) being arranged on the top of the supporting plate (1), an insulating plate (9) being installed at the bottom of the front end of the adjusting plate (8), and a plurality of probes (10) being installed at intervals at the bottom of the insulating plate (9); Each probe (10) comprises a sleeve (101), the sleeve (101) being mounted on the bottom of the insulating plate (9), a movable plate (102) being provided inside the sleeve (101), a spring (103) being provided on the top of the movable plate (102), a copper column (104) being installed on the bottom of the movable plate (102), the bottom end of the copper column (104) passing through the sleeve (101) and extending to the bottom of the sleeve (101), and an embedding groove (105) being provided on the bottom of the copper column (104); The insulating plate (9) and the plurality of probes (10) are arranged inside the two packaging shells (6), and the connecting seat (4) is arranged on the top of the adjustment plate (8).

3. The reinforced concrete structure resistivity measuring instrument according to claim 2, characterized in that: A fixing frame (11) is provided at the rear end of the adjusting plate (8), and the bottom end of the fixing frame (11) is installed together with the top of the front end of the supporting plate (1), and a second threaded rod (12) is provided inside the fixing frame (11), and the top and bottom ends of the second threaded rod (12) are movably connected to the inner wall of the fixing frame (11) through bearings, and positioning columns (13) are provided on both sides of the second threaded rod (12), and the top and bottom ends of the positioning columns (13) are fixed together with the inner wall of the fixing frame (11), and the rear end of the adjusting plate (8) is sleeved on the two positioning columns (13) and the outside of the second threaded rod (12), and the outside of the second threaded rod (12) is threadedly connected to the inner wall of the adjusting plate (8); A servo motor (14) is installed on the top of the fixed frame (11); an output shaft of the servo motor (14) passes through the fixed frame (11) and is fixed to the top of the second threaded rod (12); and a rear end of the fixing seat (2) is fixed to the front side of the top of the fixed frame (11).

4. The reinforced concrete structure resistivity measuring instrument according to claim 1, characterized in that: The first threaded rod (3) is provided with limiting columns (15) on both the front and rear sides, and the two ends of the limiting columns (15) are respectively fixed to the two fixing seats (2), and the front and rear ends of the connecting seat (4) are respectively sleeved on the outside of the two limiting columns (15).

5. The reinforced concrete structure resistivity measuring instrument according to claim 1, characterized in that: A controller (16) and a storage battery (17) are installed on the top of the rear end of the support plate (1), and the controller (16) is arranged on the rear side of the storage battery (17).

6. The reinforced concrete structure resistivity measuring instrument according to claim 1, characterized in that: Two handles (18) are installed at the top of the rear end of the support plate (1), and the two handles (18) are symmetrically distributed about the central axis of the support plate (1). A plurality of universal wheels (19) are installed at the bottom of the support plate (1), and the plurality of universal wheels (19) are evenly spaced.

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