Handheld diameter measuring instrument

Abstract

The utility model relates to the technical field of laser measuring equipment, in particular to a handheld diameter measuring instrument. According to the specific technical scheme, the handheld diameter measuring instrument comprises a transmitting shell with an opening in one side, a base is arranged at the opening end of the transmitting shell, a receiving shell is arranged at one end of the transmitting shell, a receiving mirror is arranged on the receiving shell, and a laser, a motor and a transmitting mirror are sequentially arranged in the transmitting shell along the base. A polygon mirror is arranged at the output end of the motor, a reflecting mirror is arranged above the polygon mirror, and laser emitted by the laser irradiates the polygon mirror, is emitted to the emitting mirror through the reflecting mirror and is received by the receiving mirror. The portable diameter measuring instrument solves the problem that a diameter measuring instrument in the prior art is inconvenient to carry.

Description

TECHNICAL FIELD

[0001] The utility model relates to laser measuring equipment technical field, concretely relates to a hand -held diameter measuring instrument BACKGROUND

[0002] Laser diameter measuring instrument is a kind of instrument using laser characteristics to carry out precision measurement, is according to the geometric principle of optics, using laser to scan the conversion of the measured object with output signal to measure the diameter of the device. Through the light beam emitted by laser, after polyhedral scanning mirror and scanning optical system, form the continuous high-speed scanning light beam parallel to optical axis. High-speed scanning is carried out to the workpiece placed in the measuring area, and by the photoelectric receiver placed on the opposite side of workpiece. The light projected on photoelectric receiver is blocked when scanning workpiece by light beam, by analyzing the signal output by photoelectric receiver, the data related to the diameter of workpiece can be obtained.

[0003] Laser diameter measuring instrument is widely used in wire, cable, cable, enameled wire, optical fiber, rubber, plastic, wire rod, bar, pipe, rolled steel and other fields. Especially in production line, laser diameter measuring instrument as high-performance outer diameter detection device, is responsible for completing the detection and control of outer diameter size, is the precision instrument that cable production line cannot do without.

[0004] The existing diameter measuring instrument is large in size, when using, need to install base (21), connect base (21) and support rod, support rod and supporting plate, diameter measuring instrument and supporting plate, need to adjust the horizontal height of diameter measuring instrument, make the equipment parallel to the measured workpiece. Then, connect external screen, frequency converter and other accessories. Therefore, the diameter measuring instrument needs to be installed and adjusted during use, is inconvenient to carry. SUMMARY

[0005] In view of the defects of prior art, the utility model provides a hand -held diameter measuring instrument, solves the inconvenient problem of carrying diameter measuring instrument in prior art.

[0006] To achieve the above object, the utility model discloses a hand -held diameter measuring instrument through the following technical scheme:

[0007] The utility model discloses a hand -held diameter measuring instrument, including the one side opening's launch shell, the opening end of launch shell is provided with the base, and one end of launch shell is provided with receiving shell, and receiving mirror is arranged on receiving shell, laser, motor and launch mirror are sequentially arranged in launch shell along base, the output of motor is provided with polygon mirror, and the above of polygon mirror is provided with reflecting mirror, so that the laser of laser is irradiated to polygon mirror, is launched to launch mirror by reflecting mirror, and is received by receiving mirror.

[0008] Preferably, a gap is arranged between the transmitting shell and the receiving shell, the receiving mirror is arranged corresponding to the transmitting mirror and on the same horizontal line, a glass window is arranged on the side wall of the transmitting shell, and the laser is transmitted to the receiving mirror through the glass window.

[0009] Preferably, a first circuit board is arranged in the receiving shell, and the optical signal received by the receiving mirror is converted into an electrical signal.

[0010] Preferably, a battery and a second circuit board connected with the battery are arranged on the base, and the laser, the motor and the first circuit board are powered by the battery.

[0011] Preferably, a display screen is arranged on the transmitting shell, the display screen is connected with the first circuit board, and the size of the measured object is displayed.

[0012] Preferably, guide wheels are arranged in the gap, and the receiving mirror corresponds to the gap between the two guide wheels.

[0013] Preferably, the guide wheels are fixed to one end of the receiving shell through the base and located in the gap.

[0014] Preferably, a support plate is vertically arranged on the base, the motor is fixed on the support plate, a limiting plate corresponding to and parallel with the support plate is arranged on the base, and the laser is fixed at the gap between the support plate and the limiting plate.

[0015] Preferably, the transmitting mirror is fixed on the support plate and / or a fixing plate arranged transversely on the side wall of the support plate.

[0016] Preferably, a charging interface and a switch are arranged at the other end of the transmitting shell, the charging interface and the switch are connected with the battery, a key is arranged on the top of the transmitting shell, and the key is connected with the second circuit board.

[0017] The utility model has the following beneficial effects:

[0018] The battery is arranged, so that the whole diameter measuring instrument is convenient to carry out, the charging time is more flexible, and the potential danger of all-night charging is avoided. The arrangement of various components in the whole diameter measuring instrument makes the diameter measuring instrument more compact, and the diameter measuring instrument can be easily used. Meanwhile, the base and the transmitting shell are fixed in a buckling mode, installation is convenient, the diameter measuring instrument can be repaired by oneself. Moreover, the stability of the measured object is improved by arranging two guide wheels, the inclination or shaking of the measured object on the guide wheels is avoided, and the measurement data is not accurate. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 The utility model structure schematic drawing is shown in the description;

[0020] Figure 2 for Figure 1 Internal structure diagram;

[0021] In the diagram: 1. Receiver housing; 2. Guide wheel; 3. Display screen; 4. Transmitter housing; 5. Button; 6. Switch; 7. Electrical interface; 8. Battery; 9. Second circuit board; 10. Laser; 11. Reflector; 12. Motor; 13. Transmitter mirror; 14. Glass window; 15. Receiver mirror; 16. First circuit board; 17. Support plate; 18. Limiting plate; 19. Fixing plate; 20. Base; 21. Multifaceted mirror; 22. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Unless otherwise specified, the technical means used in the implementation examples are conventional means well known to those skilled in the art.

[0024] refer to Figures 1-2 This utility model discloses a handheld diameter measuring instrument, including a transmitting housing 4 with an opening on one side. A base 21 is provided at the open end of the transmitting housing 4. The overall shape of the transmitting housing can be cuboid for easy handheld use. A receiving housing 1 is provided at one end of the transmitting housing 4, and the receiving housing is fixed to the transmitting housing. A notch is provided between the transmitting housing 4 and the receiving housing 1. A receiving mirror 15 is provided on the receiving housing 1. A laser 10, a motor 12, and a transmitting mirror 13 are arranged sequentially along the base 21 inside the transmitting housing 4. A faceted mirror 22 is provided at the output end of the motor 12. A reflector 11 is provided above the faceted mirror 22 so that the laser emitted by the laser 10 shines on the faceted mirror 22, is reflected by the reflector 11, and is reflected by the receiving mirror 15.

[0025] Furthermore, the receiving mirror 15 and the transmitting mirror 13 are correspondingly arranged and on the same horizontal line. A glass window 14 is provided on the side wall of the transmitting housing 4, allowing the laser to pass through the glass window 14 and be emitted onto the receiving mirror 15. A first circuit board 16 is provided inside the receiving housing 1 to convert the optical signal received by the receiving mirror 15 into an electrical signal.

[0026] In use, the laser emits laser light, which is irradiated onto the polygon mirror 22. The polygon mirror is driven to rotate by the motor, so that the laser light forms a light curtain, which is irradiated onto the reflecting mirror and then emitted by the transmitting mirror. The light curtain is collected by the receiving mirror and then reaches the first circuit board for receiving signals, so that the light signals are converted into electric signals. The signal processing circuit collects the changes of the electric signals, calculates the size of the measured object, and displays the size on the display screen.

[0027] Further, the base 21 is provided with a battery 8 and a second circuit board 9 connected to the battery. In order to compress the space, the second circuit board is arranged below the battery. The laser 10, the motor 12, and the first circuit board 16 are all powered by the battery 8. The battery can be a lithium battery.

[0028] Further, the transmitting shell 4 is provided with a display screen 3, which is connected to the first circuit board 16 and used for displaying the size of the measured object. The other end of the transmitting shell 4 is provided with a charging interface 7 and a switch 6, which are connected to the battery 8. The top of the transmitting shell 4 is provided with a button 5, which is connected to the second circuit board 9. The button is used to determine whether each component is started or not by corresponding functions.

[0029] Further, the gap between the receiving mirror 15 and the two guide wheels 2 corresponds.

[0030] Further, the guide wheels 2 are fixed to one end of the receiving shell 1 through the base 20 and located in the gap.

[0031] Further, the base 21 is vertically provided with a support plate 17, which is arranged along the length direction of the base. The motor 12 is fixed to the support plate 17. The base 21 is provided with a limiting plate 18 corresponding to and parallel to the support plate 17. The laser 10 is fixed to the gap between the support plate 17 and the limiting plate 18. The laser can be fixed by being clamped into the gap or being fixed to the base by bolts.

[0032] Further, the transmitting mirror 13 is fixed to the support plate 17 and / or a fixing plate 19 arranged transversely on the side wall of the support plate 17. The transmitting mirror can be arranged in multiple and parallel to the support plate or the fixing plate. The reflecting mirror can be fixed by a bracket arranged above the laser and the polygon mirror. The angle of the bracket can be adjusted according to actual requirements, so that the light curtain is horizontally emitted into the transmitting mirror.

[0033] In the description of the utility model, need understanding is, the term "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and so on indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawing, just for the convenience of describing the utility model, and not indicate or imply that the indicated device or element must have a particular orientation, construct and operate in a particular orientation, therefore can not be understood as limiting the utility model.

[0034] The above-described embodiments are only descriptions of the preferred modes of the utility model, and do not limit the scope of the utility model, and various modifications and improvements to the technical solutions of the utility model made by those skilled in the art without departing from the design spirit of the utility model should fall within the protection scope defined by the claims of the utility model.

Claims

1. A hand-held caliper comprising a one-side open launch housing (4), characterized in that: The open end of the emitting shell (4) is provided with a base (21), one end of the emitting shell (4) is provided with a receiving shell (1), the receiving shell (1) is provided with a receiving mirror (15), a laser (10), a motor (12) and an emitting mirror (13) are sequentially arranged in the emitting shell (4) along the base (21), the output end of the motor (12) is provided with a multi-faceted mirror (22), the top of the multi-faceted mirror (22) is provided with a reflecting mirror (11), so that the laser emitted by the laser (10) is irradiated onto the multi-faceted mirror (22), reflected by the reflecting mirror (11) onto the emitting mirror (13), and received by the receiving mirror (15).

2. A calliper according to claim 1, characterised in that: The emitting shell (4) and the receiving shell (1) are provided with a gap, the receiving mirror (15) is arranged corresponding to the emitting mirror (13) and on the same horizontal line, the sidewall of the emitting shell (4) is provided with a glass window (14), so that the laser is emitted through the glass window (14) onto the receiving mirror (15).

3. A calliper according to claim 1, wherein: The receiving shell (1) is provided with a first circuit board (16), which converts the optical signal received by the receiving mirror (15) into an electrical signal.

4. A calliper according to claim 3, wherein: The base (21) is provided with a battery (8) and a second circuit board (9) connected thereto, the laser (10), the motor (12) and the first circuit board (16) are all powered by the battery (8).

5. A calliper according to claim 3, wherein: The emitting shell (4) is provided with a display screen (3), the display screen (3) is connected with the first circuit board (16) and is used for displaying the size of the measured object.

6. A calliper according to claim 2, wherein: The gap is provided with a guide wheel (2), the guide wheel (2) is provided with two, the receiving mirror (15) corresponds to the gap between the two guide wheels (2).

7. A calliper according to claim 6, wherein: The guide wheel (2) is fixed to one end of the receiving shell (1) through the base (20) and located in the gap.

8. The handheld caliper of claim 1, wherein: The base (21) is vertically provided with a support plate (17), the motor (12) is fixed on the support plate (17), the base (21) is provided with a limiting plate (18) corresponding to the support plate (17) and parallel to the support plate (17), so that the laser (10) is fixed at the gap between the support plate (17) and the limiting plate (18).

9. A calliper gauge according to claim 8, wherein: The emitting mirror (13) is fixed on the support plate (17) and / or fixed on the fixing plate (19) transversely arranged on the sidewall of the support plate (17).

10. The handheld caliper of claim 4, wherein: The other end of the emitting shell (4) is provided with a charging interface (7) and a switch (6), the charging interface (7) and the switch (6) are connected with the battery (8), the top of the emitting shell (4) is provided with a key (5), the key (5) is connected with the second circuit board (9).

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