Pen type roller range finder

Abstract

The utility model provides a pen-type roller range finder, which relates to the technical field of range finding devices and comprises a shell, a roller, a monitoring assembly and a reference pointer. The roller is rotationally arranged at the measuring end, the periphery of the roller is used for abutting against a to-be-measured surface, and the roller can rotate relative to the shell in the distance measuring process; the monitoring assembly is arranged on the shell and is used for monitoring rotation information of the roller; the reference pointer is rotationally arranged at the measuring end and located on one side of the roller, the reference pointer is provided with an indicating end, and the indicating end can indicate different circumferential positions of the roller; the pen type roller range finder provided by the utility model is convenient to determine the reference position and is convenient to use.

Description

Technical Field

[0001] The utility model relates to the technical field of distance measuring devices, in particular to a pen-type roller distance meter. Background Art

[0002] Length is the most basic geometric parameter, including distance, displacement, and length. The measurement of length is of great significance to people engaged in research in various fields and promoting scientific progress. To facilitate measurement, distance measuring pens have appeared on the market. A roller is set on the pen tip to roll across the measured surface, and the measured length is obtained by monitoring the rotation angle of the roller. However, the current distance measuring pens are not easy to use because it is not easy to determine the initial reference position of the roller during use. Utility Model Content

[0003] In view of this, the purpose of the present invention is to provide a pen-type roller distance meter to solve the problems existing in the above-mentioned prior art, facilitate the determination of the reference position, and facilitate use.

[0004] In order to achieve the above-mentioned purpose of the utility model, the utility model provides the following technical solutions:

[0005] The utility model provides a pen-type roller rangefinder, comprising a housing, a roller, a monitoring component and a reference pointer, wherein one end of the housing is a measuring end; the roller is rotatably arranged at the measuring end, the outer periphery of the roller is used to abut against a surface to be measured, and the roller can rotate relative to the housing during the distance measurement process; the monitoring component is arranged on the housing and is used to monitor the rotation information of the roller; the reference pointer is rotatably arranged at the measuring end and is located on one side of the roller, the reference pointer has an indicating end, and the indicating end can indicate different positions of the roller circumference.

[0006] Preferably, an elastic wear-resistant layer is provided on the outer periphery of the roller, and the elastic wear-resistant layer is used to abut against the surface to be measured.

[0007] Preferably, the roller and the reference pointer are coaxially rotated and arranged at the measuring end, and a rotation damping member is provided between the roller and the reference pointer and the housing, and the rotation damping member is used to fix the relative position of the roller or the reference pointer and the housing during rotation.

[0008] Preferably, the monitoring component includes a signal feedback board and a ranging main board, the signal feedback board and the ranging main board are located on the side of the roller away from the reference pointer, and the signal feedback board is arranged between the ranging main board and the roller; the roller is coaxially fixedly connected to the signal feedback board and can drive the signal feedback board to rotate synchronously, the ranging main board is fixedly arranged on the housing, and the ranging main board can monitor the ranging signal of the signal feedback board.

[0009] Preferably, it further comprises a power supply component provided on the housing, wherein the power supply component is electrically connected to the monitoring component and can provide required electrical energy.

[0010] Preferably, it also includes a display component arranged on the shell, the display component is communicatively connected to the monitoring component, the power supply component is also electrically connected to the display component and can provide the required electrical energy, and the display component can receive and display the ranging information sent by the monitoring component and / or the power information of the power supply component.

[0011] Preferably, it also includes a key panel arranged on the shell, on which operation buttons connected to the outside world are set, the key panel is communicatively connected to the monitoring component and the display component, the power supply component is also electrically connected to the key panel and provides the required electrical energy, and the operation buttons can control the actions of the monitoring component, the power supply component and the display component.

[0012] Preferably, the housing is provided with a charging interface electrically connected to the power supply component, and the charging interface can be electrically connected to an external charging device to charge the power supply component.

[0013] Preferably, the housing is provided with a display window opposite to the display component, and a transparent cover is sealed at the display window; and the operation button is provided on a side of the display window away from the measuring end.

[0014] Preferably, the housing comprises a detachable upper half shell and a lower half shell; and an anti-slip layer is provided on the outer periphery of the housing portion between the display window and the measuring end.

[0015] The pen-type roller distance meter provided by the utility model has the following technical effects:

[0016] By setting a reference pointer on one side of the roller at the measuring end, during measurement, the position of the reference pointer is rotated so that the indicating end of the reference pointer points to the measuring starting point, thereby determining the initial position of the roller, which is convenient for users to make accurate observations. After the measurement is completed, the indicating end of the reference pointer points to the distance measurement end point, indicating that the distance measurement is completed, which is convenient for users to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 A schematic structural diagram of the pen-type roller distance meter provided in Example 1;

[0019] Figure 2 An exploded schematic diagram of the pen-type roller distance meter provided in Example 1;

[0020] Figure 3 A schematic top view of the pen-type roller distance meter provided in Example 1;

[0021] Figure 4 A side view schematic diagram of the pen-type roller distance meter provided in Example 1;

[0022] Figure 5 A schematic structural diagram of the upper half shell provided in Example 1;

[0023] Figure 6 A schematic structural diagram of the lower half shell provided in Example 1;

[0024] Figure 7 A schematic diagram of the internal structure of the roller provided in Example 1;

[0025] Figure 8 A schematic top view of the reference pointer provided in Example 1;

[0026] Figure 9 A schematic top view of the signal feedback board provided in Example 1;

[0027] Figure 10 A schematic top view of the ranging mainboard provided in Example 1;

[0028] Figure 11 This is a schematic top view of the keypad provided in Example 1.

[0029] Icons: 1-housing; 11-measuring end; 12-charging port; 13-display window; 14-transparent cover; 15-upper half shell; 16-lower half shell; 17-rotating shaft; 2-roller; 21-elastic wear-resistant layer; 3-monitoring component; 31-signal feedback board; 32-distance measuring main board; 4-reference pointer; 41-indicating end; 5-rotation damping element; 6-power supply component; 7-display component; 8-keyboard; 81-operation button. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] The purpose of the utility model is to provide a pen-type roller distance meter to solve the problems existing in the above-mentioned prior art, facilitate determination of a reference position, and facilitate use.

[0032] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0033] Example 1

[0034] This embodiment provides a pen-type roller distance meter, see Figures 1-4 , including a shell 1, a roller 2, a monitoring component 3 and a reference pointer 4. One end of the shell 1 is a measuring end 11; the roller 2 is rotatably set at the measuring end 11, and the outer periphery of the roller 2 is used to abut against the surface to be measured. The roller 2 can rotate relative to the shell 1 during the distance measurement process; the monitoring component 3 is set on the shell 1 and is used to monitor the rotation information of the roller 2; the reference pointer 4 is rotatably set at the measuring end 11 and is located on one side of the roller 2. The reference pointer 4 has an indicating end, which can indicate different circumferential positions of the roller 2.

[0035] By setting a reference pointer 4 on one side of the roller of the measuring end 11, the reference pointer 4 has an indicating end 41, such as Figure 8 During measurement, by rotating the position of the reference pointer 4, the indicating end 41 of the reference pointer 4 points to the measurement starting point, thereby determining the initial position of the roller 2, which is convenient for the user to make accurate observations. After the measurement is completed, the indicating end 41 of the reference pointer 4 points to the distance measurement end point, and the distance measurement is completed, which is convenient for the user to use.

[0036] Specifically, when the surface to be measured is a plane, the indicating end 41 of the reference pointer 4 is vertically indicated at the starting point of the distance measurement. When the distance measurement moves to the point where the indicating end 41 of the reference pointer 4 is vertically indicated at the end point of the distance measurement, the surface distance measurement is completed. It can also be applied to irregular surfaces to be measured, such as curved surfaces. The position of the reference pointer 4 can still be adjusted so that the indicating end 41 is indicated at the starting point of the distance measurement, which is convenient for users to observe.

[0037] Among the optional solutions of this embodiment, it is more preferred to refer to Figure 2 and Figure 3 An elastic wear-resistant layer 21 is provided on the periphery of the roller 2, and the elastic wear-resistant layer 21 is used to abut against the surface to be measured; by providing the elastic wear-resistant layer 21, the friction between the roller and the surface to be measured can be increased to avoid slipping and affecting the accuracy of the test; wherein the elastic wear-resistant layer 21 is set to a material such as rubber or polyurethane.

[0038] In the optional solution of this embodiment, it is more preferred that the roller 2 and the reference pointer 4 are coaxially rotatable and arranged at the measuring end 11, so that the reference pointer 4 can evenly point to different positions of the roller 2 in the circumference; and a rotation damping member 5 is provided between the roller 2 and the reference pointer 4 and the housing 1, and the rotation damping member 5 is used to fix the relative position of the roller 2 or the reference pointer 4 and the housing 1 during the rotation process; specifically, see Figure 1 and Figure 3 A rotating shaft 17 is fixedly set in the housing 1, and a slot is set at the connection position between the rotating shaft 17, the roller 2 and the reference pointer 4. A rotation damping member 5 is sleeved in the slot, and the rotation damping member 5 is set as an O-ring to increase the rotational friction between the rotating shaft 17, the roller 2 and the reference pointer 4, so as to facilitate follow-up and stop.

[0039] Among the optional solutions of this embodiment, it is more preferred to refer to Figure 9 and Figure 10 The monitoring component 3 includes a signal feedback board 31 and a distance measuring main board 32. The signal feedback board 31 and the distance measuring main board 32 are located on the side of the roller 2 away from the reference pointer 4. The signal feedback board 31 is arranged between the distance measuring main board 32 and the roller 2; the roller 2 is coaxially fixedly connected to the signal feedback board 31 and can drive the signal feedback board 31 to rotate synchronously. The distance measuring main board 32 is fixedly arranged on the housing 1 and can monitor the distance measuring signal of the signal feedback board 31; wherein, a protrusion is provided at the center of the lower side surface of the roller 2, such as Figure 7 As shown, it can be embedded in the card slot in the center of the signal feedback board 31, as shown in FIG. Figure 9 As shown, the protrusion is locked in the slot, so that the roller 2 can drive the signal feedback plate 31 to rotate synchronously.

[0040] The ranging mainboard 32 comprises a signal transmitting circuit and a transmitting device forming a signal transmitting end; a signal receiving circuit and a sensor forming a signal receiving end; the signal transmitting end on the ranging mainboard 32 transmits the ranging signal to the signal feedback board 31, which then feeds the ranging signal back to the signal receiving end on the ranging mainboard 32; when the roller 2 rotates, it drives the signal feedback board 31 to rotate together, causing the ranging signal passing through the signal feedback board 31 to change regularly; the ranging mainboard 32 analyzes the changing patterns of these ranging signals to obtain the ranging result; The principle of roller ranging is mainly through monitoring the rotation angle of roller 2, where the radius of roller 2 is R, the circumference is 2πR, and one rotation of roller 2 is 360 degrees. For every 1 degree rotation of roller 2, the corresponding distance rotated is 2πR / 360; therefore, by detecting the angle value of roller 2 rotation, we can calculate the actual distance rotated by roller 2; specifically, the ranging coordination mode of ranging main board 32 and signal feedback board 31 can be set to specific angle measurement forms such as capacitive angle measurement, electronic angle meter measurement, Hall magnetic encoder measurement, grating code disk measurement, etc.

[0041] Among the optional solutions of this embodiment, it is more preferred that the pen-type roller rangefinder provided in this embodiment further includes a power supply component 6 arranged on the housing 1, the power supply component 6 is electrically connected to the monitoring component 3, and can provide the required electrical energy to meet the power demand; wherein the power supply component 6 can be set in various forms, such as a built-in rechargeable battery form, a detachable form or a wireless power supply form, etc.

[0042] Among the optional solutions of this embodiment, it is more preferred that the pen-type roller rangefinder provided in this embodiment also includes a display component 7 arranged on the shell 1, the display component 7 is communicatively connected to the monitoring component 3, the power supply component 6 is also electrically connected to the display component 7 and can provide the required electrical energy, the display component 7 can receive and display the distance measurement information sent by the monitoring component 3 and / or the power information of the power supply component 6; specifically, the display component 7 is configured as a digital display screen, which can display the distance measurement information and power information, so as to facilitate direct tube observation.

[0043] Among the optional solutions of this embodiment, it is more preferred that Figure 11 The pen-type roller rangefinder 1 provided in this embodiment further includes a keypad 8 disposed on the housing 1. The keypad 8 is provided with operation buttons 81 connected to the outside world. The keypad 8 is communicatively connected to both the monitoring component 3 and the display component 7. The power supply component 6 is also electrically connected to the keypad 8 and provides the required power. The operation buttons 81 can control the actions of the monitoring component 3, the power supply component 6, and the display component 7. The keypad 8 is a circuit board. The operation buttons 81 can be configured as various function buttons, such as a power on / off button, a distance zeroing button, or a digital display on / off button. The button functions are determined according to specific needs, and the keypad 8 is configured accordingly.

[0044] In the optional scheme of this embodiment, it is more preferred that a charging interface 12 electrically connected to the power supply component 6 is provided on the shell 1, and the charging interface 12 can be electrically connected to an external charging device to charge the power supply component 6; by setting the charging interface 12, the power supply component 6 can be charged in time to meet the power supply demand.

[0045] In the optional scheme of this embodiment, it is more preferred that a display window 13 opposite to the display component 7 is provided on the shell 1, and a transparent cover 14 is sealed at the display window 13; and the operation button 81 is provided on the side of the display window 13 away from the measuring end 11. Correspondingly, a protruding window for the operation button 81 is provided on the shell 1 to facilitate operation. The display window 13 is provided to facilitate observation of the displayed information, and the transparent cover 14 is provided to prevent dust and water.

[0046] Among the optional solutions of this embodiment, it is more preferred to refer to Figure 5 and Figure 6The shell 1 includes a detachable upper half shell 15 and a lower half shell 16, which can be installed and removed by snaps or screws; and the part of the shell 1 between the display window 13 and the measuring end 11 is a hand-grip area, and at least the outer periphery of the hand-grip area is provided with an anti-slip layer, wherein the anti-slip layer can be set as a rubber layer or anti-slip protrusions.

[0047] The pen-type roller distance meter provided in this embodiment stretches the housing 1 into a long strip, leaving a finger grip area, a sufficiently large display area, and independent function buttons in sequence, and is designed with a freely adjustable reference pointer 4 to improve ease of use.

[0048] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A pen-type roller distance meter, characterized in that: include: A housing (1), one end of the housing (1) being a measuring end (11); A roller (2) is rotatably disposed at the measuring end (11), the outer periphery of the roller (2) being used to abut against the surface to be measured, and the roller (2) is capable of rotating relative to the housing (1) during the distance measurement process; A monitoring component (3) is provided on the housing (1) and is used to monitor the rotation information of the roller (2); and A reference pointer (4) is rotatably arranged at the measuring end (11) and located on one side of the roller (2). The reference pointer (4) has an indicating end (41), and the indicating end (41) can indicate different circumferential positions of the roller (2).

2. The pen-type roller distance meter according to claim 1, characterized in that: An elastic wear-resistant layer (21) is provided on the outer periphery of the roller (2), and the elastic wear-resistant layer (21) is used for contacting the surface to be measured.

3. The pen-type roller distance meter according to claim 1, characterized in that: The roller (2) and the reference pointer (4) are coaxially rotatably arranged at the measuring end (11), and a rotation damping member (5) is provided between the roller (2) and the reference pointer (4) and the housing (1). The rotation damping member (5) is used to fix the relative position of the roller (2) or the reference pointer (4) with the housing (1) during the rotation process.

4. The pen-type roller distance meter according to claim 1, characterized in that: The monitoring component (3) comprises a signal feedback plate (31) and a distance measuring main board (32); the signal feedback plate (31) and the distance measuring main board (32) are located on a side of the roller (2) facing away from the reference pointer (4); the signal feedback plate (31) is arranged between the distance measuring main board (32) and the roller (2); the roller (2) is coaxially fixedly connected to the signal feedback plate (31) and can drive the signal feedback plate (31) to rotate synchronously; the distance measuring main board (32) is fixedly arranged on the housing (1); and the distance measuring main board (32) can monitor the distance measuring signal of the signal feedback plate (31).

5. The pen-type roller distance meter according to claim 1, characterized in that: It also includes a power supply component (6) arranged on the housing (1), wherein the power supply component (6) is electrically connected to the monitoring component (3) and can provide required electrical energy.

6. The pen-type roller distance meter according to claim 5, characterized in that: The device further comprises a display component (7) arranged on the housing (1), wherein the display component (7) is in communication connection with the monitoring component (3), the power supply component (6) is also electrically connected to the display component (7) and is capable of providing required electrical energy, and the display component (7) is capable of receiving and displaying distance measurement information sent by the monitoring component (3) and / or power information of the power supply component (6).

7. The pen-type roller distance meter according to claim 6, characterized in that: The invention also includes a keypad (8) arranged on the housing (1), an operation button (81) connected to the outside world being arranged on the keypad (8), the keypad (8) being communicatively connected to the monitoring component (3) and the display component (7), the power supply component (6) being also electrically connected to the keypad (8) and providing required electrical energy, and the operation button (81) being capable of controlling the actions of the monitoring component (3), the power supply component (6) and the display component (7).

8. The pen-type roller distance meter according to claim 5, characterized in that: The housing (1) is provided with a charging interface (12) electrically connected to the power supply component (6), and the charging interface (12) can be electrically connected to an external charging device to charge the power supply component (6).

9. The pen-type roller distance meter according to claim 7, characterized in that: The housing (1) is provided with a display window (13) opposite to the display component (7), and a transparent cover (14) is sealed at the display window (13); and the operation button (81) is provided on a side of the display window (13) facing away from the measuring end (11).

10. The pen-type roller distance meter according to claim 9, characterized in that: The housing (1) comprises a detachable upper half shell (15) and a lower half shell (16); and an anti-slip layer is provided on the outer periphery of the portion of the housing (1) between the display window (13) and the measuring end (11).

Images