CN216523487U

CN216523487U - Measuring tool

Info

Publication number: CN216523487U
Application number: CN202123010886.2U
Authority: CN
Inventors: 不公告发明人
Original assignee: Shenzhen H&T Intelligent Control Co Ltd
Current assignee: Shenzhen H&T Intelligent Control Co Ltd
Priority date: 2021-12-02
Filing date: 2021-12-02
Publication date: 2022-05-13
Anticipated expiration: 2031-12-02

Abstract

The utility model relates to the technical field of measurement, in particular to a measuring tool, which comprises a shell, a winding drum, a driving assembly, a flexible rule and an electronic module, wherein the winding drum is arranged on the shell; an accommodating cavity is arranged in the shell, and a first through hole for communicating the accommodating cavity with the outside of the shell is also formed in the shell; the winding drum is rotatably arranged in the containing cavity; the driving assembly is in transmission connection with the winding drum and is used for driving the winding drum to rotate; one end of the tape is connected to the outer side surface of the shell, and the other end of the tape passes through the first through hole to be connected to the outer peripheral surface of the winding drum, and when the winding drum rotates around the circumference of the winding drum, winding or unwinding is carried out; the electronic module is used for acquiring the first scale of the flexible rule positioned at the first through hole, obtaining the perimeter of the object to be measured according to the first scale and displaying the perimeter, so that the automation degree is improved, and the measuring process is convenient and quick; and can store and transmit data, alleviate the disturbance of artifical reading and record, improve measurement of efficiency, promote and use experience.

Description

Measuring tool

Technical Field

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

Background

The circumference measuring method in the prior art generally measures through a flexible rule or a tape, the flexible rule or the tape needs to be pulled by hands to surround the object to be measured for a circle in the measuring process, the numerical value needs to be read, the measured numerical value needs to be recorded, and the operation process is very inconvenient.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a measuring tool which can automatically measure, display and record the perimeter of an object to be measured, is convenient to operate and high in measuring efficiency, and improves user experience.

In order to solve the above technical problem, the present invention provides a measuring tool, including:

the device comprises a shell, a first connecting piece and a second connecting piece, wherein an accommodating cavity is formed in the shell, and a first through hole for communicating the accommodating cavity with the outside of the shell is formed in the shell;

the winding drum is rotatably arranged in the accommodating cavity;

the driving assembly is in transmission connection with the winding drum and is used for driving the winding drum to rotate;

one end of the tape is connected to the outer side face of the shell, the other end of the tape penetrates through the first through hole to be connected to the outer peripheral face of the winding drum, and the winding drum is wound or unwound when rotating around the circumference of the winding drum;

the electronic module comprises a main control unit, a first sensor and a display screen, wherein the first sensor is arranged at the first through hole and is used for acquiring a first scale of the flexible rule positioned at the first through hole; the main control unit is electrically connected with the first sensor and obtains the perimeter of the object to be measured according to the first scale; the display screen is arranged on the outer side face of the shell and electrically connected with the main control unit, and the display screen is used for displaying the perimeter.

In some embodiments, a circular arc-shaped notch is arranged outside the housing, the notch is used for placing the object to be measured, the first through hole is arranged on one side of the notch along the circular arc direction, and the tape extends out of the first through hole on one side of the notch and is connected to the other side of the notch.

In some embodiments, the casing is provided with a plurality of comb-tooth-shaped stop strips along the circumferential direction of the arc of the notch, and any two adjacent stop strips are used for limiting the position of the tape.

In some embodiments, the method is characterized by: the electronic module further comprises a second sensor, the second sensor is arranged on each stop strip, and the second sensor is used for acquiring second scales of the tape at the stop strips.

In some embodiments, a clamping groove is formed at the joint of the casing and the tape, a clamping column is arranged at one end of the tape connected with the casing, and the clamping column is used for being clamped with the clamping groove.

In some embodiments, the electronic module further includes a distance sensor electrically connected to the main control unit, and the distance sensor is configured to emit a detection signal and receive a detection signal reflected by an object to be measured.

In some embodiments, the housing is further provided with a second through hole communicating the accommodating cavity with the outside of the housing, and the distance sensor is disposed in the accommodating cavity and transmits a detection signal and receives the detection signal reflected by an object to be detected through the second through hole.

In some embodiments, the electronic module further comprises a wireless communication module electrically connected to the main control unit and configured to transmit the perimeter.

In some embodiments, the electronic module further includes a button disposed on an outer side of the housing, the button and the driving assembly are both electrically connected to the main control unit, the button is configured to generate a trigger signal and transmit the trigger signal to the main control unit, and the main control unit generates a driving signal according to the trigger signal and transmits the driving signal to the driving assembly to drive the driving assembly.

In some embodiments, the first sensor and the second sensor are both contact image sensors.

Different from the situation of the related technology, the measuring tool provided by the embodiment of the utility model adopts the flexible rule to measure the perimeter, adopts the mechanical structure to automatically contract, adopts the sensor to acquire data, improves the automation degree, and is convenient and quick in the measuring process; and built-in electronic component can save and show data, alleviates the annoyance of artifical reading and record, improves measurement of efficiency, promotes and uses experience.

Drawings

FIG. 1 is a perspective view of a measurement tool according to an embodiment of the present invention;

FIG. 2 is a perspective view of another perspective of a measuring tool according to an embodiment of the present invention;

FIG. 3 is a schematic view of the internal structure of a measurement tool according to an embodiment of the present invention;

fig. 4 is a block diagram of the electronic module of fig. 3.

Detailed Description

In order to facilitate an understanding of the utility model, the utility model is described in more detail below with reference to the accompanying drawings and specific examples. It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for descriptive purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1, 3 and 4, a measuring tool 100 according to an embodiment of the present invention includes a housing 1, a winding drum 2, a driving assembly 3, a tape 4 and an electronic module 5, wherein the housing 1 is used for accommodating and protecting the winding drum 2, the driving assembly 3, the tape 4 and the electronic module 5; the winding drum 2 is used for winding the flexible rule 4; the driving component 3 is used for driving the winding drum 2 to rotate; the flexible rule 4 is used for surrounding the object to be measured, and the flexible rule 4 is provided with scales, the electronic module 5 comprises a main control unit 51, a first sensor 52, a second sensor 53, a distance sensor 54, a display screen 55, a wireless communication module 56 and a button 57, and the main control unit 51 is electrically connected with the first sensor 52, the second sensor 53, the distance sensor 54, the display screen 55, the wireless communication module 56, the button 57 and the driving component 3 respectively. The first sensor 52 is used for reading a first scale, and the first scale is used for indicating the length of the tape 4 outside the shell 1; the main control unit 51 is configured to calculate a length of the tape 4 outside the housing 1 according to the first scale, so as to further calculate a perimeter of the object to be measured and store the perimeter, and the display screen 55 is configured to display the perimeter, so as to implement measurement, display and automatic recording of the perimeter of the object to be measured.

The distance sensor 54 is used for emitting a detection signal and receiving the detection signal reflected by the object to be measured.

As shown in fig. 2 and 3, for the housing 1, a housing cavity 11 is provided in the housing 1, and a first through hole 12 is further provided to communicate the housing cavity 11 with the outside of the housing 1, and the first through hole is used for the tape 4 to pass through; the housing 1 is further provided with a second through hole 13 communicating the accommodating cavity 11 with the outside of the housing 1, and the distance sensor 54 is arranged in the accommodating cavity 11 and transmits a detection signal and receives the detection signal reflected by an object to be detected through the second through hole 13.

In one embodiment, the housing 1 is divided into an upper shell and a lower shell, the upper shell and the lower shell are assembled together by screw installation, and a receiving cavity 11 is formed between the upper shell and the lower shell.

In a specific embodiment, the housing 1 is in a circular truncated cone shape, the first through hole 12 is disposed at an outer circumferential surface of the housing 1, and the second through hole 13 is disposed at a top surface or a bottom surface of the housing 1; the winding drum 2 is arranged close to the first through hole 12, and the winding drum 2 is rotatably arranged on the lower shell through a rotating shaft; the driving component 3 is a motor, and the motor is arranged in the lower shell and is in transmission connection with the winding drum 2.

The casing 1 is provided with convex breach 14 outward, breach 14 is used for placing the determinand, follows convex camber line direction, first through-hole 12 set up in one side of breach 14, tape 4 is followed breach 14 one side first through-hole 12 is worn out and is connected in the opposite side of breach 14. The notch 14 is used for placing an object to be measured, the tape 4 is wound into the shell 1 through the first through hole 12 and the winding drum 2, so that the tape 4 is tensioned, and the tape 4 and the notch 14 clamp the object to be measured together; at this time, the first sensor 52 reads the first scale on the tape 4 located at the first through hole 12, and the main control unit 51 calculates the first scale, so as to obtain the circumference of the object to be measured.

The casing 1 is provided with a plurality of comb-tooth-shaped stop strips 15 along the circular arc-shaped circumference of the notch 14, and any two adjacent stop strips 15 are used for limiting the position of the tape 4. One end of the tape 4 connected with the other side of the notch 14 can be placed into a gap between the stop strips 15 and the body of the shell 1 and can be pulled out from any two adjacent stop strips 15, so that the length of an arched bow length formed by the part of the tape 4 outside the shell 1 is changed, and the tape can be suitable for measuring objects to be measured with different diameters; by adjusting the position of the flexible rule 4 on the stop strip 15, the gap between the flexible rule 4 and the object to be measured can be reduced, so that the flexible rule 4 surrounds the object to be measured as far as possible, the error of the measurement result is reduced, and the measurement accuracy is improved.

The casing 1 with draw-in groove 16 has been seted up to the junction of flexible rule 4, flexible rule 4 with the one end that casing 1 is connected is provided with card post 41, card post 41 be used for with draw-in groove 16 joint. The flexible rule 4 is connected with the clamping groove 16 on the shell 1 through the clamping column 41, so that the position of the flexible rule 4 on the stop strip 15 can be conveniently adjusted, and the simplicity of the adjusting process is improved; moreover, by adopting the connection mode, the function of the measuring tool 100 can be increased, and when the clamping column 41 is separated from the clamping groove 16, the flexible rule 4 is straightened, so that the measurement of the linear distance can be realized; alternatively, the measuring of the length of the curved or broken line can be realized by extending the tape 4 along the curved or broken line of the object to be measured.

For the winding drum 2, the winding drum 2 is rotatably arranged in the accommodating cavity 11. The winding drum 2 is rotatably arranged on the lower shell through a rotating shaft, the winding drum 2 is cylindrical, and baffle rings are arranged at two end parts and used for limiting the position of the flexible rule 4 and avoiding the deviation of the flexible rule 4 even breaking away from the winding drum 2.

For the above driving assembly 3, the driving assembly 3 is in transmission connection with the winding drum 2, the driving assembly 3 is used for driving the winding drum 2 to rotate, when an object to be measured is measured, the object to be measured is placed between the tape 4 and the shell 1, the button 57 is pressed, the button 57 generates a trigger signal and transmits the trigger signal to the main control unit 51, the main control unit 51 generates a driving signal according to the trigger signal and transmits the driving signal to the driving assembly 3 so as to control the driving assembly 3 to work, and the driving assembly 3 drives the winding drum 2 to rotate, so that the tape 4 is released or tensioned. The driving component 3 is a motor, and the motor is fixedly arranged in the lower shell and is in transmission connection with the winding drum 2 through a gear or a belt; or, the motor is arranged at the axis of the winding drum 2, the shell of the motor is fixedly connected with the winding drum 2, and the rotating shaft of the motor is directly used as the rotating shaft of the winding drum 2, so that the structure is simplified, and the occupied volume in the accommodating cavity 11 is reduced.

For the tape 4, one end of the tape 4 is connected to the outer side surface of the shell 1, and the other end of the tape passes through the first through hole 12 to be connected to the outer peripheral surface of the winding drum 2, and when the winding drum 2 rotates around the circumference of the winding drum, the winding or unwinding is performed. The flexible rule 4 is in a long strip shape, and scales are arranged on the flexible rule 4 along the extending direction.

In a specific embodiment, the scale is a number printed on the tape 4 or a number provided on the tape 4 and capable of being read by the electronic module 5; alternatively, the scale is magnetic field information or electric field information, which the electronic module 5 can read, for example, a chip similar to a magnetic tape or an access card.

For the electronic module 5, the first sensor 52 is disposed at the first through hole 12, and the first sensor 52 is configured to obtain a first scale of the tape 4 located at the first through hole 12; the main control unit 51 obtains the perimeter of the object to be measured according to the first scale; the display screen 55 displays and records the circumference. The first scale is used for indicating the position of the first scale on the flexible rule 4, and the length of the flexible rule 4 outside the shell 1 can be obtained by reading the first scale, so that the perimeter of the object to be measured is calculated.

In one embodiment, the first sensor 52 is a contact image sensor.

In a specific embodiment, the first sensor 52 is a camera or an electromagnetic coil, the camera is configured to collect image information on the tape 4, and the graphic information is analyzed by the main control unit 51, so as to obtain a numerical value of the first scale, thereby obtaining the length of the tape 4 outside the housing 1; the electromagnetic coil is used for reading the magnetic field information or the electric field information on the tape 4, and directly acquiring the numerical value of the first scale, so as to acquire the length of the tape 4 outside the shell 1.

The electronic module 5 further includes a second sensor 53, the second sensor 53 is disposed on each of the stop bars 15, and the second sensor 53 is configured to obtain a second scale of the tape 4 located at the stop bar 15. When the tape 4 is pulled out from between two adjacent stop bars 15, the tape 4 between the pulled-out position and the clamping column 41 is an invalid section which does not surround the object to be detected, and the perimeter of the object to be detected can be obtained by subtracting the invalid section; by acquiring the second scale, the length of the invalid section can be acquired, so that the invalid section is subtracted.

In a specific embodiment, the first scale and the second scale are obtained as a and b, and the circumference of the object to be measured is L ═ a-b × (k), where k is a constant.

In a specific embodiment, the second sensors 53 on the two stop bars 15 for limiting the tape 4 can read the second scales on the tape 4, and the main control unit 51 selects a maximum value from the second scales as a final second scale.

In a specific embodiment, in the arc direction of the circular arc of the notch 14, the second sensor 53 is disposed on one side of the stop bar 15; at this time, only the second sensor 53 on one of the two stop bars 15 for limiting the tape 4 and the stop bar 15 can read the second scale on the tape 4.

In a specific embodiment, the second sensor 53 and the first sensor 52 are the same sensor, i.e. the second sensor 53 may be a contact image sensor, a camera, a solenoid coil, or the like.

The distance sensor 54 is configured to emit a detection signal and receive a detection signal reflected by the object to be detected, and the main control unit 51 calculates a distance between the object to be detected and the distance sensor 54 according to a time difference between the emission of the detection signal and the reception of the detection signal. The distance sensor 54 is tightly attached to the second through hole 13, the distance sensor 54 comprises a signal transmitting end and a signal receiving end, the signal transmitting end and the signal receiving end are arranged in the second through hole 13, the signal transmitting end and the signal receiving end are electrically connected with the main control unit 51, the signal transmitting end is used for transmitting a detection signal, the signal receiving end is used for receiving a detection signal reflected by the object to be measured, the main control unit 51 is used for recording the time for the signal transmitting end to transmit the detection signal and the time for the signal receiving end to receive the detection signal, and the distance between the object to be measured and the measuring tool 100 is calculated according to the time difference value between the time for the signal transmitting end to transmit the detection signal and the time for the signal receiving end to receive the detection signal.

In a specific embodiment, the distance sensor 54 is an ultrasonic distance sensor 54, and the detection signal is an ultrasonic signal.

The display screen 55 is disposed on the outer side surface of the housing 1, and the display screen 55 is used for a user to perform touch operation and display the perimeter of the object to be measured or the distance between the object to be measured and the measuring tool 100. The display screen 55 is an OLED, an LCD or a liquid crystal display screen 55, and a touch layer is attached to the display screen 55, so that display and touch operation can be performed.

The wireless communication module 56 is in communication connection with an external terminal, and is configured to send the perimeter of the object to be measured or the distance between the object to be measured and the measurement tool 100 to the external terminal. The wireless communication module 56 comprises one or more of a bluetooth module, a 4G module, a 5G module and a WI-FI module.

In a specific embodiment, the main control unit 51 is a single chip microcomputer.

The button 57 is disposed on an outer side surface of the housing 1, and the button 57 is configured to generate a trigger signal based on a user's pressing. After a user selects a measuring mode of measuring by using the tape 4 on the display screen 55, the user presses the button 57, the button 57 generates a trigger signal and transmits the trigger signal to the main control unit 51, the main control unit 51 generates a driving signal according to the trigger signal and transmits the driving signal to the driving assembly 3 so as to drive the driving assembly 3, so that the driving assembly 3 drives the winding drum 2 to rotate and tighten the tape 4, the tape 4 surrounds an object to be measured, the first sensor 52 obtains a first scale, the main control unit 51 obtains the circumference of the object to be measured according to the first scale, and the display screen 55 displays the circumference, so that the measurement is completed; after the measurement is finished, the main control unit 51 controls the driving assembly 3 to stop working, and at the moment, the tape 4 can be pulled out manually; or, when the button 57 is pressed, the driving assembly 3 drives the winding drum 2 to rotate and tighten the tape 4, and after the measurement is completed, the button 57 is pressed for a long time, and the driving assembly 3 drives the winding drum 2 to rotate reversely so as to release the tape 4.

The measuring tool 100 of the present invention, when measuring a circumference: firstly, the measuring tool 100 is in an open state, and the tape 4 is manually pulled out or the button 57 is pressed for a long time to automatically release the tape 4; then, the object to be measured is placed between the flexible rule 4 and the gap 14; then the button 57 is pressed, and the flexible rule 4 is tightened and surrounds the object to be measured; the display screen 55 displays the perimeter of the object to be measured; the position of the tape 4 on the stop strip 15 can be adjusted according to the size of the object to be measured.

The measuring tool 100 of the present invention, when measuring a distance: first, the measuring tool 100 is in an open state; then, aligning the second through hole 13 of the housing 1 with the object to be measured, i.e. aligning the signal transmitting end and the signal receiving end of the distance sensor 54 with the object to be measured; the display screen 55 displays the distance between the object to be measured and the measuring tool 100; or, the clamping column 41 of the tape 4 is pulled out of the clamping groove 16, then the tape 4 is extended along the track to be measured, and finally, the distance between the object to be measured and the measuring tool 100 is displayed through the display screen 55.

According to the measuring tool 100, the circumference is measured by the tape 4, the tape 4 is automatically contracted by the winding drum 2 and the driving assembly 3, the scales are obtained by the first sensor 52 and the second sensor 53, and the scales are calculated by the main control unit 51, so that the object to be measured is measured, the automation degree of object measurement is improved, and the measuring process is convenient and quick; and built-in master control unit 51 and wireless communication module 56 can save and transmit data, alleviates the annoyance of artifical reading and record, improves measurement of efficiency, promotes and uses experience.

It should be noted that the description of the present invention and the accompanying drawings illustrate preferred embodiments of the present invention, but the present invention may be embodied in many different forms and is not limited to the embodiments described in the present specification, which are provided as additional limitations to the present invention and to provide a more thorough understanding of the present disclosure. Moreover, the above technical features are combined with each other to form various embodiments which are not listed above, and all the embodiments are regarded as the scope of the present invention described in the specification; further, modifications and variations will occur to those skilled in the art in light of the foregoing description, and it is intended to cover all such modifications and variations as fall within the true spirit and scope of the utility model as defined by the appended claims.

Claims

1. A measuring tool, characterized in that the measuring tool comprises:

the winding drum is rotatably arranged in the accommodating cavity;

one end of the tape is connected to the outer side surface of the shell, the other end of the tape penetrates through the first through hole to be connected to the outer peripheral surface of the winding drum, and the tape is wound or unwound when the winding drum rotates around the circumference of the tape;

2. The measurement tool of claim 1, wherein: the casing is provided with convex breach outward, the breach is used for placing the determinand, follows convex pitch arc direction, first through-hole set up in one side of breach, the tape measure is followed breach one side first through-hole is worn out and is connected in the opposite side of breach.

3. The measurement tool of claim 2, wherein: the shell is provided with a plurality of comb-tooth-shaped stop strips along the circumferential direction of the arc of the notch, and any two adjacent stop strips are used for limiting the position of the tape.

4. The measurement tool of claim 3, wherein: the electronic module further comprises a second sensor, the second sensor is arranged on each of the stop bars, and the second sensors are used for acquiring second scales of the tape located at the stop bars.

5. The measurement tool of any of claims 1-4, wherein: the casing with the draw-in groove has been seted up to the junction of flexible rule, the flexible rule with the one end that the casing is connected is provided with the card post, the card post be used for with the draw-in groove joint.

6. The measurement tool of claim 1, wherein: the electronic module further comprises a distance sensor, the distance sensor is electrically connected with the main control unit, and the distance sensor is used for transmitting a detection signal and receiving a detection signal reflected by an object to be detected.

7. The measurement tool of claim 6, wherein: the shell is further provided with a second through hole communicated with the accommodating cavity and the outside of the shell, and the distance sensor is arranged in the accommodating cavity and used for transmitting a detection signal and receiving the detection signal reflected by an object to be detected through the second through hole.

8. The measurement tool of claim 1, wherein: the electronic module further comprises a wireless communication module, and the wireless communication module is electrically connected with the main control unit and used for sending the perimeter.

9. The measurement tool of claim 1, wherein: the electronic module further comprises a button, the button is arranged on the outer side face of the shell, the button reaches the driving assembly and is electrically connected with the main control unit, the button is used for generating a trigger signal and transmitting the trigger signal to the main control unit, and the main control unit generates a driving signal according to the trigger signal and transmits the driving signal to the driving assembly so as to drive the driving assembly.

10. The measurement tool of claim 4, wherein: the first sensor and the second sensor are both contact image sensors.