CN219301474U

CN219301474U - Coating thickness measuring device

Info

Publication number: CN219301474U
Application number: CN202320369556.2U
Authority: CN
Inventors: 杨显; 王志伟; 唐海翔; 田野; 邹华健; 刘明
Original assignee: CISDI Chongqing Information Technology Co Ltd
Current assignee: CISDI Chongqing Information Technology Co Ltd
Priority date: 2023-03-02
Filing date: 2023-03-02
Publication date: 2023-07-04
Anticipated expiration: 2033-03-02

Abstract

The utility model belongs to the technical field of coating thickness measurement, and particularly discloses a coating thickness measurement device which comprises a shell, wherein an installation groove is formed in the shell, the shell comprises a probe, a transmission assembly and a motor, the probe, the transmission assembly and the motor are installed in the installation groove, wherein the probe can extend out of the installation groove, an output end of the motor and the probe are coaxially arranged, the transmission assembly is arranged between the motor and the probe and is used for converting rotary motion of the motor into linear motion, so that the probe is driven to do linear reciprocating motion in the installation groove.

Description

Coating thickness measuring device

Technical Field

The utility model relates to the technical field of coating thickness measurement, in particular to a coating thickness measuring device.

Background

When the steel structure fireproof paint is constructed, ensuring the thickness of the fireproof paint coating reaching the structural design is a key factor for ensuring the fireproof performance of the steel structure building. Common methods for thickness of the fire-resistant coating include ultrasonic method, magnetic induction method, mechanical thickness measurement method, etc. The ultrasonic detection method utilizes a probe to emit a high-frequency sound pulse to enter the coating through the couplant, when the multilayer coating is measured, the echo can generate some confusion, if the echo distance is closer, the overlapping can occur, the reading of the instrument is unstable, and the measurement accuracy is affected. The magnetic method for measuring thickness is influenced by the magnetic change of the base metal, the surface roughness and the measuring position. The rough surface can cause systematic errors and accidental errors, the number of times of measurement needs to be increased at different positions, and if the base metal is rough, the zero points of a plurality of position calibration instruments also need to be taken from an uncoated base metal test piece with similar roughness; or a solvent which is not corrosive to the base metal is used for dissolving the covering layer on the base metal, and after the covering layer is removed, the zero point of the instrument is checked, so that the method is inconvenient to use.

To this, there has been developed a mechanical steel construction fire-retardant coating thickness gauge, including measuring handle, spring, survey buret and measurement probe, survey buret's measurement end is the plane, be equipped with along the axle center on the survey buret with survey probe size assorted through-hole, survey probe's one end is fixed in measuring handle, survey probe's the other end inserts in the through-hole and with through-hole inner wall sliding connection, the buret is the body that one end opening, middle part were equipped with the cavity, survey handle's cavity size and survey buret external diameter assorted, survey handle suit is in the outside of survey buret to install the spring that is used for measuring handle return between survey buret tail end and the interior bottom surface of buret cavity. However, this technical scheme relies on manual drive measurement probe to insert in the coating and carries out thickness measurement in the in-service use, and the operation is wasted time and energy, especially when carrying out thick fire prevention coating and impale the measurement, the operation is laborious inconvenient, inefficiency.

Therefore, if the device for measuring the thickness of the coating of the building steel can be developed, the thickness of the coating can be automatically measured, and a measuring probe is not required to be manually inserted into the coating, so that the device is more beneficial to saving manpower and improving the measuring efficiency.

Disclosure of Invention

In view of the above-mentioned drawbacks of the prior art, an object of the present utility model is to provide a device for measuring a thickness of a coating layer, which is used for solving the problems of low measurement accuracy, incapability of automatically measuring the thickness of the coating layer, inconvenience in operation, low measurement efficiency, etc. in the prior art.

To achieve the above and other related objects, the present utility model provides a coating thickness measuring apparatus, comprising a housing having a mounting groove therein, the housing including a probe, a transmission assembly and a motor, the probe, the transmission assembly and the motor being mounted in the mounting groove, wherein the probe is extendable out of the mounting groove, an output end of the motor is coaxially disposed with the probe, the transmission assembly is disposed between the motor and the probe for converting a rotational motion of the motor into a linear motion, thereby driving the probe to reciprocate linearly in the mounting groove

In an embodiment of the present application, the transmission assembly includes a sliding block, a plurality of sliding grooves are formed on a groove wall of the installation groove, the sliding block is slidably connected in the sliding grooves, and the sliding block is fixedly connected with the transmission assembly.

In an embodiment of the application, the transmission assembly further comprises a sleeve and a screw, one end of the screw is coaxially connected with the output end of the motor, the other end of the screw stretches into the sleeve and is in threaded connection with the sleeve, and the sliding block is fixedly connected with the outer wall of the sleeve.

In an embodiment of the present application, a through groove is formed on the outer wall of the housing, and the through groove is communicated with the chute.

In an embodiment of the application, the housing further comprises an indication rod, one end of the indication rod is fixedly connected to the transmission assembly, the other end of the indication rod penetrates through the through groove and extends out of the housing, and the indication rod is in sliding connection with the through groove.

In an embodiment of the present application, the housing further includes a reading assembly, and the reading assembly is mounted on the housing and is disposed parallel to the transmission assembly.

In an embodiment of the present application, an end cover is detachably connected to an end of the housing close to the motor.

In one embodiment of the present application, the probe comprises a needle shaft and a needle head, wherein the needle shaft is fixedly connected with the transmission assembly, and the needle head is replaceably mounted at one end of the needle shaft far away from the transmission assembly.

In an embodiment of the application, the measuring device includes an abutment plate and a support plate, the abutment plate is fixedly connected to a side wall of one end of the shell far away from the motor, the abutment plate is vertically arranged with the side wall of the shell, and two ends of the support plate are respectively fixedly connected with the abutment plate and the side wall of the shell. The supporting plate, the abutting plate and the side wall of the shell form a triangular structure, and the abutting plate is flush with the end face of the shell, which is far away from one end of the motor.

In an embodiment of the application, the measuring device further comprises a grab handle detachably mounted on the shell, and a power supply assembly electrically connected with the motor is arranged in the grab handle.

In an embodiment of the present application, a plurality of sliding grooves are provided with limiting blocks at two ends, and the sliding block is slidably connected between the two limiting blocks.

In an embodiment of the application, the casing includes the shell, has seted up the mounting groove in the shell, and the mounting groove runs through the shell both ends, and drive assembly, power spare and probe are all installed in the shell, and the shell is close to the one end demountable installation end cover of motor.

In an embodiment of the application, the measuring device further comprises a control piece, the control piece is electrically connected with the motor and the power supply assembly, the control piece is used for controlling the motor to open and close, and the control piece is installed on the shell.

In one embodiment of the present application, the reading assembly may be a scale.

In one embodiment of the present application, the reading assembly may be a digital display scale.

As described above, the present utility model has the following advantageous effects:

according to the utility model, the rotation motion of the motor is converted into linear reciprocating motion through the transmission assembly, so that the probe coaxially connected with the transmission assembly is driven to reciprocate in the shell, and the probe extends out of the shell and enters the coating. When the thickness of the coating is required to be measured, the motor is started by the control piece to perform forward rotation or reverse rotation to drive the transmission assembly to reciprocate along the chute, and the reading zero setting correction and the coating thickness measurement are completed. The utility model utilizes the threaded connection structure of the screw rod and the sleeve to form a transmission system, drives the probe connected with the transmission system to extend into the coating, controls the opening and closing of the motor through the control piece, further locks the relative positions of the transmission assembly, the probe and the shell, limits the sliding distance of the transmission assembly, indicates the scale on the reading assembly through the indication rod, and is convenient for a user to read. The utility model also limits the sleeve by the sliding block, so that the sleeve can linearly reciprocate along the sliding groove, and the probe is driven to extend out of the shell to enter the coating.

The utility model can realize automatic measurement of the thickness of the coating, is convenient for zeroing the reading of the device, and does not need a user to manually insert the probe extending out of the measuring device into the coating, thereby achieving the purposes of saving manpower and improving the measuring efficiency.

The measuring device of the utility model is abutted against the coating by a user through the grab handle to measure the thickness, the shell is abutted against the surface of the coating to be measured, the motor is started to drive the probe to extend into the coating, when the probe cannot move forwards any more, namely, the probe contacts the surface of an object where the coating is located, and then the relative position of the indicating rod and the reading assembly is used for reading the thickness data of the coating.

Drawings

FIG. 1 is a schematic view of a coating thickness measuring device according to an embodiment of the present utility model;

FIG. 2 is a schematic view of a coating thickness measuring device according to another embodiment of the present utility model;

FIG. 3 is a schematic view of a coating thickness measuring device according to another embodiment of the present utility model;

fig. 4 is a top view of the coating thickness measuring device of the present utility model.

Reference numerals

1: a reading assembly; 2: a mounting groove; 3: a through groove; 4: a chute; 5: a grab handle; 6: a sleeve; 7: a slide block; 8: a screw;

9: an indication rod; 10: a motor; 11: a control member; 12: a housing; 13: an end cap; 14: a battery case; 15: a storage battery;

16: a needle bar; 17: a needle; 18: a limiting block; 19: an abutment plate; 20: a support plate; 21: a holding groove.

Detailed Description

Other advantages and effects of the present utility model will become apparent to those skilled in the art from the following disclosure, which describes the embodiments of the present utility model with reference to specific examples. The utility model may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present utility model.

The utility model provides a coating thickness measuring device, which comprises a shell, wherein an installation groove 2 is formed in the shell, the shell comprises a probe, a transmission assembly and a motor 10, the probe, the transmission assembly and the motor 10 are installed in the installation groove 2, wherein the probe can extend out of the installation groove 2, the output end of the motor 10 is coaxially arranged with the probe, and the transmission assembly is arranged between the motor 10 and the probe and is used for converting the rotary motion of the motor 10 into linear motion so as to drive the probe to do linear reciprocating motion in the installation groove 2.

The following specific exemplary examples illustrate the utility model in detail. It is also to be understood that the following examples are given solely for the purpose of illustration and are not to be construed as limitations upon the scope of the utility model, as many insubstantial modifications and variations are within the scope of the utility model as would be apparent to those skilled in the art in light of the foregoing disclosure. The specific process parameters and the like described below are also merely examples of suitable ranges, i.e., one skilled in the art can make a suitable selection from the description herein and are not intended to be limited to the specific values described below.

Example 1

As shown in fig. 1, the measuring device of the embodiment includes a housing, the housing includes a casing 12, a mounting groove 2 is formed in the casing 12, the mounting groove 2 penetrates through two ends of the casing 12, and specifically, the mounting groove 2 may be formed in the middle of the casing 12. The reading assembly 1 is fixedly arranged on the outer wall of the top of the shell 12, and the reading assembly 1 can be a graduated scale.

The shell component comprises a probe, a transmission component and a motor 10, wherein the probe, the transmission component and the motor 10 are arranged in the mounting groove 2, the probe can extend out of the mounting groove 2, the output end of the motor 10 is coaxially arranged with the probe, the transmission component is arranged between the motor 10 and the probe and is used for converting the rotary motion of the motor 10 into linear motion so as to drive the probe to do linear reciprocating motion in the mounting groove 2. Wherein the motor 10 may be a miniature motor.

In a specific embodiment of the present application, the transmission assembly includes a sleeve 6 and a screw 8, one end of the screw 8 is coaxially connected with the output end of the motor 10, the other end of the screw 8 extends into the sleeve 6 and is in threaded connection with the inner wall of the sleeve 6, and the probe is fixedly connected with one end of the sleeve 6 far away from the motor 10. When the motor 10 is started, the screw rod 8 rotates, and the sleeve 6 is driven through the thread structure, so that the sleeve 6 moves on the screw rod 8.

In a specific embodiment of the present application, the transmission assembly further comprises a sliding block 7, a plurality of sliding grooves 4 are arranged on the groove wall of the installation groove 2, the sliding block 7 is slidably connected in the sliding grooves 4, and the sliding block 7 is fixedly connected with the outer wall of the sleeve 6. When the motor 10 is started, the screw rod 8 rotates, and as the sliding block 7 is fixedly connected with the outer wall of the sleeve 6, the sleeve 6 cannot rotate under the transmission action of the thread structure, and the sleeve 6 only reciprocates linearly in the horizontal direction along the sliding groove 4 under the limitation of the sliding block 7.

In a specific embodiment of the present application, two ends of the chute 4 are provided with limiting blocks 18, the sliding block 7 is slidably connected between the two limiting blocks 18, the limiting blocks 18 are used for limiting the moving distance of the sleeve 6 and the sliding block 7 in the chute 4, preferably, the moving distance of the sleeve 6 along the chute 4 is not greater than 50mm, the coating thickness measuring range of the measuring device in this embodiment is 0mm-50mm, more preferably, the measuring precision of this embodiment can reach 0.5mm, so that the measuring device of this embodiment is adapted to the thickness measurement of the thin and thick steel structure fireproof coating.

In a specific embodiment of the present application, the top outer wall of the housing 12 is provided with a through groove 3, the through groove 3 is located on the upper side of the chute 4 near the top of the housing 12 and is communicated with the chute 4, and the through groove 3 is parallel to the transmission assembly. The shell also comprises an indication rod 9, one end of the indication rod 9 is fixedly connected to the side wall of one end, far away from the motor 10, of the sleeve 6, the other end of the indication rod 9 penetrates through the through groove 3 and extends out of the shell, and the indication rod 9 is in sliding connection with the through groove 3. When the transmission component carries out linear reciprocating motion in the chute 4, the indication rod 9 fixedly connected with the transmission component is driven to carry out reciprocating motion in the through groove 3, and the indication rod 9 is used for indicating the scale of the reading component 1 and zeroing, so that a user can conveniently read. The through groove 3 of this embodiment is used for making the indicator rod 9 stretch out of the shell 12, and convenient indication position and reading on the reading component 1, and the spout 4 is used for spacing the displacement of sleeve 6, makes sleeve 6 can slide along spout 4, and as shown in fig. 1, the one end that is close to the probe in through groove 3 aligns with the stopper 18 terminal surface that is close to one end of the probe in spout 4 for the displacement distance of indicator rod 9 and sleeve 6 is the same.

In one embodiment of the present application, the probe comprises a needle shaft 16 and a needle 17, the needle shaft 16 is fixedly connected with the sleeve 6, preferably, the needle shaft 16 can be connected to a central portion of an end face of the sleeve 6 away from one end of the motor 10, the needle 17 is mounted on the needle shaft 16 away from the sleeve 6 in a replaceable manner, the needle 17 is used for penetrating the coating, the needle shaft 16 is provided with a channel for entering the coating, and when the measuring device does not measure the thickness of the coating, the needle 17 is aligned with an end face of the housing 12 away from one end of the motor 10. Preferably, the needle 17 is kept sharp and of a predetermined length so as to be replaced in time when the needle 17 is worn. The preset length of the needle 17 in this embodiment is set according to actual needs, for example, 5mm, etc., and the preset length is not limited to a specific value here.

In a specific embodiment of the present application, an end cover 13 is detachably mounted to an end of the housing 12 adjacent to the motor 10, and the motor 10 is disposed in the mounting groove 2 adjacent to the end cover 13. The motor 10 is convenient to disassemble and assemble through the end cover 13, so that the motor 10 is overhauled.

In a specific embodiment of the present application, as shown in fig. 2, the measuring device further includes an abutment plate 19, the abutment plate 19 is fixedly connected to a side wall of one end of the housing far away from the motor 10, the abutment plate 19 is perpendicular to the side wall of the housing, and two ends of the support plate 20 are respectively fixedly connected to the abutment plate 19 and the side wall of the housing. The supporting plate 20, the abutting plate 19 and the side wall of the shell form a triangular structure, and the abutting plate 19 is flush with the end face of the end, far away from the motor 10, of the shell. Through this kind of setting scheme, this embodiment is supported and is leaned on the coating more stable, is convenient for the user to laminate measuring device and coating surface through support plate 19, improves the accuracy that coating thickness detected.

In a specific embodiment of the present application, as shown in fig. 3, a handle 5 is detachably mounted at the bottom of the housing 12, and a power supply assembly electrically connected to the motor 10 is disposed in the handle 5. The measuring device further comprises a control, i.e. a switch 11, as shown in fig. 3, the switch 11 of the present embodiment may be arranged on the grip 5; as shown in fig. 4, the switch 11 of the present embodiment may be provided on the housing 12 to improve the convenience of use. Referring to fig. 3, a battery jar 14 is further disposed in the grip 5, the power supply assembly includes a battery 15, the battery 15 is installed in the battery jar 14, and the battery 15 is electrically connected with the micro motor 10 through the switch 11, and supplies power to the measuring device through the battery 15. This embodiment facilitates replacement of the battery 15, since the grip 5 is detachably mounted with the housing 12.

In a specific embodiment of the present application, a controller (not shown in the figure) may be installed on an outer wall of the housing, the controller is electrically connected with the switch 11, the motor 10 and the power supply assembly, the power supply assembly is electrically connected with the motor 10, and the controller is used for controlling the motor 10 to rotate forward or reverse, and in this embodiment, the controller may be a single-chip microcomputer.

When the switch 11 is turned on, the motor 10 is controlled to rotate reversely through the controller, the output end of the motor 10 drives the screw rod 8 to rotate anticlockwise, the sleeve 6 and the indicating rod 9 are driven to move towards the motor 10 until the sleeve is contacted with the limiting block 18 on one side of the end cover 13, at the moment, the tip of the needle 17 is flush with the end face of the shell, far away from one end of the end cover 13, and at the moment, the front end face of the indicating rod 9 points to the 0 scale of the reading assembly 1. Limiting blocks 18 at two ends of the sliding groove 4 can limit the limiting position of the sleeve 6, and further limit the limiting position of a probe connected with the limiting position, so that the indication rod 9 points to the scale of 0, and then the motor 10 is turned off through the switch 11 to lock the relative positions of the sleeve 6 and the indication rod 9 in the shell 12. By controlling the motor 10 to rotate reversely, the embodiment can zero the measuring device, so that the indicating rod 9 indicates the scale of 0 of the reading assembly 1, and the accuracy of the measuring device is improved.

When the motor 10 is controlled by the controller to rotate positively, the output end of the motor 10 drives the screw rod 8 to rotate clockwise, and drives the sleeve 6 and the indicating rod 9 to move towards one end of the shell 12 far away from the motor 10, so as to push the probe into the coating, when the needle 17 of the probe stretches into the coating until the probe cannot move forward any more, the probe is in contact with the surface of building steel, the switch 11 is closed, and the thickness data of the coating is read out through the relative positions of the indicating rod 9 and the reading assembly 1. At this time, the relative positions of the sleeve 6 and the sliding block 7 in the chute 4 are limited by the limiting block 18 of the chute 4, so that the sleeve 6 is prevented from being separated from the screw 8 when the whole probe stretches into the coating.

In a specific embodiment of the present application, as shown in fig. 3, a plurality of holding grooves 21 may be further formed on the outer wall of the handle 5, and fingers of a user are located in the holding grooves 21, so as to facilitate an operator to hold the measuring device.

In a specific embodiment of the present application, the method for using the measuring device in this embodiment is as follows:

(1) Zeroing the measuring device: before use, the device needs to be subjected to zero-setting calibration. The motor 10 is controlled by the controller to reverse, the transmission assembly and the indicating rod 9 are driven to move towards the end cover 13 until the sliding block 7 in the sliding groove 4 is contacted with the limiting block 18, then the motor 10 is turned off, the indicating rod 9 and the transmission assembly are locked at the current position, and at the moment, the indicating rod 9 points to the scale of 0 of the reading assembly 1, so that zero setting is realized.

(2) Coating thickness measurement: after zero setting calibration is finished, a user holds the grab handle 5 to support the measuring device against the surface of the coating, the motor 10 is controlled to rotate positively, the transmission assembly, the indicating rod 9 and the probe are driven to move linearly towards the coating, when the probe stretches into the coating until the probe can not move forwards any more, the motor 10 is turned off, and the thickness data of the coating is read through the relative position of the indicating rod 9 and the reading assembly 1.

The measuring device of the embodiment has the advantages of simple and convenient measuring method and high reading accuracy.

Example 2

This example is a further optimization of example 1. The reading assembly 1 in this embodiment may be set as a digital display ruler, the digital display ruler and the transmission assembly are arranged at the top of the housing 12 in parallel, and the indication rod 9 is movably connected in the digital display ruler. Before the measuring device of this embodiment uses, carry out zeroing with the digital display chi, directly show coating thickness data through the digital display chi, need not the user and reads out through observing, further reduces the reading error, improves the accuracy that coating thickness detected, improves the convenience of use.

The digital display ruler can be internally provided with a data storage module for recording and reading historical measurement data, and the specific model and the working principle of the storage module for improving the use convenience are all of the prior art and are not repeated here.

The above embodiments are merely illustrative of the principles of the present utility model and its effectiveness, and are not intended to limit the utility model. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the utility model, and it is intended that the appended claims be interpreted as covering all equivalent modifications and variations as fall within the true spirit and scope of the utility model.

Claims

1. The utility model provides a coating thickness measuring device, its characterized in that, includes the casing, be provided with mounting groove (2) in the casing, the casing includes probe, drive assembly and motor (10), the probe drive assembly with motor (10) are installed in mounting groove (2), wherein, the probe can stretch out mounting groove (2), the output of motor (10) with the coaxial setting of probe, drive assembly sets up motor (10) with between the probe, be used for with rotary motion of motor (10) is converted into rectilinear motion, thereby drives the probe is in rectilinear reciprocating motion in mounting groove (2).

2. The coating thickness measuring device according to claim 1, wherein the transmission assembly comprises a sliding block (7), a plurality of sliding grooves (4) are formed in the groove wall of the mounting groove (2), the sliding block (7) is slidably connected in the sliding grooves (4), and the sliding block (7) is fixedly connected with the transmission assembly.

3. The coating thickness measuring device according to claim 2, characterized in that the transmission assembly further comprises a sleeve (6) and a screw (8), one end of the screw (8) is coaxially connected with the output end of the motor (10), the other end of the screw (8) extends into the sleeve (6) and is in threaded connection with the sleeve (6), and the sliding block (7) is fixedly connected with the outer wall of the sleeve (6).

4. The coating thickness measuring device according to claim 2, characterized in that the housing outer wall is provided with a through slot (3), the through slot (3) being in communication with the chute (4).

5. The coating thickness measuring device according to claim 4, wherein the housing further comprises an indication rod (9), one end of the indication rod (9) is fixedly connected to the side wall of the transmission assembly, the other end of the indication rod (9) penetrates through the through groove (3) and extends out of the housing, and the indication rod (9) is slidably connected with the through groove (3).

6. The coating thickness measuring device according to claim 1, characterized in that the housing further comprises a reading assembly (1), the reading assembly (1) being mounted on the housing, the reading assembly (1) being arranged in parallel with the transmission assembly.

7. The coating thickness measuring device according to claim 1, characterized in that the housing is detachably connected with an end cap (13) near one end of the motor (10).

8. The coating thickness measuring device according to claim 1, wherein the probe comprises a needle bar (16) and a needle head (17), the needle bar (16) is fixedly connected with the transmission assembly, and the needle head (17) is replaceably mounted at an end of the needle bar (16) away from the transmission assembly.

9. The coating thickness measuring device according to claim 1, characterized in that the measuring device comprises an abutting plate (19) and a supporting plate (20), wherein the abutting plate (19) is fixedly connected to a side wall of one end of the shell, which is far away from the motor (10), the abutting plate (19) is perpendicular to the side wall of the shell, and two ends of the supporting plate (20) are fixedly connected with the abutting plate (19) and the side wall of the shell respectively.

10. The coating thickness measuring device according to claim 1, further comprising a handle (5), wherein the handle (5) is detachably mounted on the housing, and wherein a power supply assembly electrically connected to the motor (10) is provided in the handle (5).