Range finder

Abstract

The utility model discloses a range finder, including a first mounting bracket, a second mounting bracket and a circuit control board, the second mounting bracket is provided with a first connecting part and a second connecting part, the first mounting bracket is provided with a transmitting light path and a receiving light path, the circuit control board is provided with a transmitter and a receiver, and the receiver is provided with a receiving light path and a receiving light path. The first mounting bracket and the circuit control board are assembled on the second mounting bracket through the first connecting part and the second connecting part respectively, the input position of the transmitter is opposite to the input position of the transmitting light path, and the position of the receiver is opposite to the position of the receiving light path. According to the utility model, the first mounting bracket and the circuit control board are connected into a whole through the second mounting bracket, so that the transmitter and the receiver are respectively opposite to the transmitting light path and the receiving light path, and the functions of transmitting and receiving light are realized. Compared with the prior art, the range finder provided by the utility model is only composed of three main accessories, the installation and connection modes are simple, and the assembly efficiency can be effectively improved.

Description

Technical Field

[0001] The utility model belongs to the field of laser technology, in particular to a distance meter. Background Art

[0002] Laser rangefinder is an instrument that uses the time flight principle to measure the distance and position of the target. The time flight principle of laser - Timeofflight is: the laser transmitter emits a laser pulse wave, and the internal timer starts to calculate the time t1. When the laser wave hits the object, part of the energy is returned. When the laser receiver receives the returned laser wave, the sensor calculates the time difference or phase difference between the light emission and reflection to convert the distance between the photographed scene and the TOF laser sensor. Lasers are widely used in automation, smart factories and warehousing. For example, automated guided vehicles can use lasers for distance measurement. Existing laser rangefinders have a complex structure and are not easy to assemble. Summary of the invention

[0003] The rangefinder comprises a first mounting bracket, a second mounting bracket and a circuit control board, wherein the second mounting bracket is provided with a first connecting portion and a second connecting portion, the first mounting bracket is provided with a transmitting optical path and a receiving optical path, the circuit control board is provided with a transmitter and a receiver, the first mounting bracket and the circuit control board are respectively assembled on the second mounting bracket through the first connecting portion and the second connecting portion, and the transmitter and the input end of the transmitting optical path are positioned opposite to each other, and the receiver and the output end of the receiving optical path are positioned opposite to each other.

[0004] The utility model connects the first mounting bracket and the circuit control board together through the second mounting bracket, so that the transmitter and the receiver are respectively opposite to the transmitting optical path and the receiving optical path, thereby realizing the functions of transmitting and receiving light. Compared with the prior art, the rangefinder of the utility model is composed of only three main accessories, and its installation and connection method is simple, which can effectively improve the assembly efficiency.

[0005] Furthermore, the second mounting bracket also includes a base plate, on which a mounting structure for connecting to an external device is provided, the first connecting portion and the second connecting portion are provided on the base plate, and the shape of the first connecting portion matches the shape of the first mounting bracket, and is sleeved on the outer side of the first mounting bracket. This scheme is a basic structural design scheme of the second mounting bracket. In this scheme, the second mounting bracket is connected to the external device through the base plate to be installed on the external device (such as an AGV), and the first connecting portion and the second connecting portion are provided on the base plate. The overall structure is simple and easy to assemble.

[0006] Furthermore, the first mounting bracket includes a first conical portion narrowing from top to bottom, a first mounting portion arranged in a ring around the outer periphery of the upper end of the first conical portion, and a transmission portion arranged on the inner side of the first conical portion. The upper and lower ends of the first conical portion are connected to form a receiving cavity. The first mounting portion is equipped with a focusing lens and the receiving cavity to form the receiving optical path. The transmission portion is a hollow structure with two ends intersecting each other, and longitudinally penetrates the focusing lens and the first conical portion to communicate with the outside world to form the transmitting optical path. This scheme is a basic structural design scheme for the first mounting bracket. In this scheme, the transmission portion is arranged on the inner side of the first conical portion and longitudinally penetrates the focusing lens and the first conical portion, so that the receiving optical path is arranged along the outer periphery of the transmitting optical path, thereby receiving reflected light waves in an omnidirectional manner.

[0007] Furthermore, the first connecting portion includes a second conical portion adapted to the first conical portion, a second mounting portion adapted to the first mounting portion, and an air-avoiding opening adapted to the transmission portion. This solution is a specific structural design solution of the second mounting bracket.

[0008] Furthermore, the first mounting portion includes a connecting protruding wall arranged around the outer periphery of the upper end of the first conical portion, and a clamping structure arranged on the connecting protruding wall, and the focusing lens is fixed to the first mounting portion through the clamping structure.

[0009] Furthermore, the first mounting bracket is provided with a third connecting portion on the outer wall of the lower part of the first conical portion, the third connecting portion extends downward and abuts against the circuit control board, and the receiver is located in the third connecting portion; the first connecting portion is provided with a space-avoiding portion adapted to the third connecting portion. In this solution, the reflected light waves are gathered by the focusing lens and then projected to the receiver in parallel through the third connecting portion.

[0010] Furthermore, the second connecting portion is disposed between the lower end of the second mounting portion and the outer side of the second tapered portion.

[0011] Furthermore, the first mounting portion and the second mounting portion are fixed via a fixing structure.

[0012] Furthermore, a dimming component is provided on the emission light path, a mounting opening and a cover are provided on the outside of the transmission part, the cover is detachably covered on the mounting opening, and the dimming component is assembled to the emission light path through the mounting opening.

[0013] Furthermore, the inner peripheral wall of the transmission part is provided with a slot, and the dimming component is locked in the slot. This solution fixes the dimming component on the receiving light path through the slot, and the fixing method is simple and easy to disassemble and assemble. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is the structural exploded diagram of the rangefinder;

[0015] Figure 2 is a cross-sectional view of the rangefinder;

[0016] Figure 3 is a cross-sectional view of a first mounting bracket;

[0017] Figure 4 The structure of the rangefinder is shown in Figure 1. Figure 1 ;

[0018] Figure 5 The structure of the rangefinder is shown in Figure 1. Figure 2 ;

[0019] Figure 6 Structural breakdown of the first mounting bracket Figure 1 ;

[0020] Figure 7 Structural breakdown of the first mounting bracket Figure 2 ;

[0021] Figure 8 The structure diagram of the second mounting bracket Figure 1 ;

[0022] Fig. 9 The structure diagram of the second mounting bracket Figure 2 .

[0023] Description of labels:

[0024] First mounting bracket 1, emitting optical path 11, dimming component 111, filter plate 117, polarizer 118, mounting opening 112, buckle groove 1121, cover 113, undercut 1131, card slot 114, receiving optical path 12, first tapered portion 121, first mounting portion 13, connecting protrusion 131, clamping structure 132, first clamping block 132a, second clamping block 132b, fixing structure 133, transmission portion 14, focusing lens 15, mounting plane 151, mounting platform 152, third connecting portion 19, second mounting bracket 2, first connecting portion 21, second connecting portion 22, second tapered portion 24, second mounting portion 25, air avoidance 26, air avoidance portion 27, substrate 28, mounting structure 29, transmitter 4. DETAILED DESCRIPTION

[0025] A preferred specific implementation of the present utility model is described below in conjunction with the accompanying drawings.

[0026] See also Figures 1 to 9As shown, the utility model discloses a rangefinder, comprising a first mounting bracket 1, a second mounting bracket 2 and a circuit control board (not shown in the figure), the second mounting bracket 2 is provided with a first connecting portion 21 and a second connecting portion 22, the first mounting bracket 1 is provided with a transmitting optical path 11 and a receiving optical path 12, the circuit control board is provided with a transmitter 4 and a receiver, the first mounting bracket 1 and the circuit control board are respectively assembled on the second mounting bracket 2 through the first connecting portion 21 and the second connecting portion 22, and the transmitter 4 is opposite to the input end of the transmitting optical path 11, and the receiver is opposite to the output end of the receiving optical path 12.

[0027] The basic structural scheme of the above-mentioned first mounting bracket 1 is: it includes a first conical portion 121 narrowing from top to bottom, a first mounting portion 13 arranged around the outer periphery of the upper end of the first conical portion 121, and a transmission portion 14 arranged on one side of the first conical portion 121. The upper and lower ends of the first conical portion are connected to form a receiving cavity. The first mounting portion 13 is equipped with a focusing lens 15 and forms a receiving optical path 12 with the receiving cavity. The transmission portion 14 is a hollow structure with two ends penetrating each other, and longitudinally penetrates the first mounting portion 13 and the first conical portion 121 to communicate with the outside world to form an emitting optical path 11.

[0028] The specific structural scheme of the above-mentioned first mounting bracket 1 is: the above-mentioned first mounting portion 13 includes a connecting protruding wall 131 arranged around the outer periphery of the upper end of the first conical portion 121, and a clamping structure 132 arranged on the connecting protruding wall 131, and the focusing lens 15 is fixed on the first mounting portion 13 through the clamping structure 132.

[0029] The basic structural scheme of the above-mentioned second mounting bracket 2 is: it includes a substrate 28, on which is a mounting structure 29 for connecting to an external device, a first connecting portion 21 and a second connecting portion 22 are arranged on the substrate 28, and the shape of the first connecting portion 21 is adapted to the shape of the first mounting bracket 1, and is sleeved on the outer side of the first mounting bracket 1.

[0030] The specific structural scheme of the second mounting bracket 2 is as follows: the first connecting portion 21 includes a second conical portion 24 adapted to the first conical portion 121 , a second mounting portion 25 adapted to the first mounting portion 13 , and a clearance opening 26 adapted to the transmission portion 14 .

[0031] In one embodiment, the clamping structure 132 includes a first clamping block 132a clamped on two opposite sides of the focusing lens 15 and a second clamping block 132b clamped on four ends of the focusing lens 15. The two opposite sides of the focusing lens 15 cooperate with the first clamping block 132a to form a mounting plane 151, and the four ends of the focusing lens 15 cooperate with the second clamping block 132b to form a mounting platform 152. The first clamping block supports and clamps the mounting plane, and the second clamping block elastically buckles on the mounting platform.

[0032] In one embodiment, the first mounting bracket 1 is provided with a third connecting portion 19 on the lower outer wall ring of the first conical portion 121, the third connecting portion 19 extends downward and abuts against the circuit control board, and the receiver is located in the third connecting portion 19; the first connecting portion 21 is provided with a avoiding portion 27 adapted to the third connecting portion 19.

[0033] The second connection portion 22 is disposed between the lower end of the second mounting portion 25 and the outer side of the second tapered portion 24 .

[0034] The first mounting portion 13 and the second mounting portion 25 are fixed via a fixing structure 133 .

[0035] The fixing structure 133 is a screw hole, and the two screw holes are connected in series by screws.

[0036] The above-mentioned emission light path 11 is provided with a dimming component 111 , and the outside of the transmission part 14 is provided with an installation opening 112 and a cover 113 . The cover 113 is detachably covered on the installation opening 112 , and the dimming component 111 is assembled to the emission light path 11 through the installation opening 112 .

[0037] The inner wall of the transmission portion 14 is provided with a slot 114 , and the dimming component 111 is locked in the slot 114 .

[0038] The dimming component 111 includes a filter plate 117 and a polarizer 118 .

[0039] The cover 113 is provided with undercuts 1131 at two opposite sides thereof, and the transmission portion 14 is provided with buckling grooves 1121 at two opposite sides of the installation opening 112 . The undercuts 1131 are elastically buckled on the buckling grooves 1121 .

[0040] The other two opposite sides of the cover 113 are provided with locking grooves 1132, and the transmission part 14 is adapted to be provided with a locking shaft 1122 for the locking grooves 1132, so that after the cover 113 is assembled on the installation opening 112, the locking grooves 1132 are connected to the locking shaft 1122, and the cover 113 is limited in all directions, so that its connection with the installation opening 112 is tight and stable.

[0041] To improve the sealing of the installation opening 112 , a sealing block 1133 is provided on one side of the cover 113 close to the installation opening 112 . The sealing block 1133 is connected to the inner wall of the installation opening 112 to prevent external light from entering the emission light path 11 or light from the emission light path 11 from being emitted from the installation opening 112 .

[0042] The utility model connects the first mounting bracket 1 and the circuit control board together through the second mounting bracket 2, so that the transmitter 4 and the receiver are respectively opposite to the transmitting optical path 11 and the receiving optical path 12, thereby realizing the functions of transmitting and receiving light. Compared with the prior art, the rangefinder of the utility model is composed of only three main accessories, and its installation and connection method is simple, which can effectively improve the assembly efficiency.

[0043] According to the disclosure and teaching of the above description, the technical personnel in the field to which the utility model belongs can also change and modify the above implementation. Therefore, the utility model is not limited to the specific implementation methods disclosed and described above, and some modifications and changes to the utility model should also fall within the scope of protection of the claims of the utility model. In addition, although some specific terms are used in this specification, these terms are only for the convenience of description and do not constitute any limitation to the utility model.

Claims

1. A rangefinder, characterized in that: It includes a first mounting bracket, a second mounting bracket and a circuit control board, the second mounting bracket is provided with a first connecting part and a second connecting part, the first mounting bracket is provided with a transmitting optical path and a receiving optical path, the circuit control board is provided with a transmitter and a receiver, the first mounting bracket is assembled on the first connecting part, the rear side of the second mounting bracket is connected to the circuit control board through the second connecting part, and the transmitter is opposite to the input end of the transmitting optical path, and the receiver is opposite to the output end of the receiving optical path.

2. The rangefinder according to claim 1, characterized in that: The second mounting bracket further comprises a substrate, on which a mounting structure for connecting an external device is provided, and the first connecting portion and the second connecting portion are provided on the substrate; The shape of the first connecting portion matches the shape of the first mounting bracket, and is sleeved on the outer side of the first mounting bracket.

3. The rangefinder according to claim 1 or 2, characterized in that: The first mounting bracket includes a first conical portion narrowing from top to bottom, a first mounting portion arranged in a ring around the outer circumference of the upper end of the first conical portion, and a transmission portion arranged on the inner side of the first conical portion. The upper and lower ends of the first conical portion are connected to form a receiving cavity. The first mounting portion is equipped with a focusing lens and the receiving cavity to form the receiving light path. The transmission portion is a hollow structure with two ends penetrating each other, and longitudinally penetrates the focusing lens and the first conical portion to communicate with the outside world to form the emission light path.

4. The rangefinder according to claim 3, characterized in that: The first connecting portion includes a second tapered portion matched with the first tapered portion, a second mounting portion matched with the first mounting portion, and an air avoidance port matched with the transmission portion.

5. The rangefinder according to claim 4, characterized in that: The first mounting portion includes a connecting convex wall arranged around the outer periphery of the upper end of the first conical portion, and a clamping structure arranged on the connecting convex wall, and the focusing lens is fixed to the first mounting portion through the clamping structure.

6. The distance meter according to claim 5, characterized in that: The first mounting bracket is provided with a third connecting portion around the lower outer wall of the first conical portion, the third connecting portion extends downward and abuts against the circuit control board, and the receiver is located in the third connecting portion; The first connecting portion is provided with a gap-avoiding portion adapted to the third connecting portion.

7. The rangefinder according to claim 6, characterized in that: The second connecting portion is disposed between a lower end of the second mounting portion and an outer side of the second tapered portion.

8. The rangefinder according to claim 4, characterized in that: The first mounting portion and the second mounting portion are fixed via a fixing structure.

9. The rangefinder according to claim 3, characterized in that: A dimming component is provided on the emission light path, and a mounting opening and a cover are provided on the outside of the transmission part. The cover is detachably covered on the mounting opening, and the dimming component is assembled to the emission light path through the mounting opening.

10. The distance meter according to claim 9, characterized in that: The inner peripheral wall of the transmission part is provided with a clamping groove, and the dimming component is clamped in the clamping groove.

Images