Automatic calibration device for handheld laser range finder

Abstract

The invention discloses an automatic calibration device for a handheld laser range finder, and relates to the technical field of measuring equipment. The range finder comprises a shell assembly and a range finder body, the shell assembly is mainly formed by splicing two first half shells, the end of each first half shell is a connecting section, a fixing ring is installed on the connecting section to achieve fixation of the two first half shells, each first half shell is provided with a plane, a clamping opening is formed in the plane, two first pipe openings are symmetrically formed in the first half shells, and the two first pipe openings are communicated with the clamping opening. The range finder body is of a columnar structure, the end of the range finder body is located in a connecting section, and meanwhile a gap formed between the end of the range finder body and the connecting section is sealed through a sealing ring. According to the invention, the motor drives the propulsion blade to rotate, so that the propulsion blade pushes air in the channel I formed between the range finder body and the inner wall of the half shell I to move towards one side, and the air is discharged through one pipe orifice I, so that the air is fed through the other pipe orifice I, and heat dissipation is completed through the air flowing through the channel I.

Description

Technical Field

[0001] The present invention relates to the technical field of measuring devices, and particularly to an automatic calibration device for a handheld laser rangefinder. Background Art

[0002] A handheld laser rangefinder is an instrument that accurately measures the distance to a target using a laser. A fine laser beam is emitted, and the laser beam reflected by the target is received by a photoelectric element. A timer measures the time from the emission to the reception of the laser beam, thereby calculating the distance from the observer to the target.

[0003] Existing handheld laser rangefinders are small in structure. After long-term use, it is not convenient for heat dissipation. Summary of the Invention

[0004] The purpose of the present invention is to provide an automatic calibration device for a handheld laser rangefinder, which solves the related problems proposed in the background art.

[0005] To solve the above technical problems, the present invention provides an automatic calibration device for a handheld laser rangefinder, including a housing assembly and a rangefinder body. The housing assembly is mainly composed of two half-housings I spliced together. The end of the half-housing I is a connection section, and a fixing ring is installed on the connection section to fix the two half-housings I. There is a plane on the half-housing I, and a bayonet is opened on the plane. Two pipe orifices I are symmetrically arranged on the half-housing I. The rangefinder body is in a columnar structure, and the end of the rangefinder body is located in a connection section. At the same time, the gap formed between the end of the rangefinder body and the connection section is sealed by a sealing ring. There is a convex structure on the rangefinder body that cooperates with the bayonet. A channel I is formed between the rangefinder body and the inner wall of the half-housing I, and the channel I communicates with the two pipe orifices I. A motor is installed in the other connection section of the half-housing I, and a propulsion blade is installed on the output end of the motor. The propulsion blade is located in the channel. During the operation of the laser component, the temperature generated inside is not easy to dissipate. By driving the propulsion blade to rotate by the motor, it is realized that the propulsion blade pushes the air in the channel I formed between the rangefinder body and the inner wall of the half-housing I to move to one side and is discharged through one pipe orifice I, so as to intake air through the other pipe orifice I, and heat dissipation is completed through the air flowing through the channel I.

[0006] Furthermore, the connection sections provided at both ends of the half-housing I form a narrowing structure. The connection section is provided with an external thread, and the fixing ring is provided with an internal thread that meshes with the external thread of the connection section. Through the fixing ring fitted on the outside of the connection section, the two half-housings I are fixedly installed. The connection sections provided at both ends of the half-housing I form a narrowing structure, which is convenient for increasing the volume of the channel I formed between the rangefinder body and the inner wall of the half-housing I and is convenient for improving the heat exchange effect.

[0007] Further, the bottom of the propulsion blade is a disc body, and a number of blades are annularly distributed on the disc body. The circumferentially distributed blades are sleeved on the end of the rangefinder body, facilitating the pushing of air to flow from one end of the rangefinder body to the other end, improving the heat dissipation effect.

[0008] Further, it also includes a heat dissipation channel, which is mainly composed of two spliced half-cases II. Two nozzles II are symmetrically arranged on the half-case II, and the nozzle II and the nozzle I are connected by a connecting pipe.

[0009] Further, an end cover is sleeved on the port formed by the two half-cases II. A tubular member is installed inside the half-case II, and the port of the tubular member communicates with the end cover. A channel II is formed between the tubular member and the half-case II. The channel II and the channel I are connected by a connecting pipe. A propulsion blade is installed on the output end of the motor to push the air inside the channel I into the channel II, realizing the circulating flow of the air inside the channel II and the channel I, preventing the external air from entering the inside of the channel I, and effectively solving the problem that dust is likely to accumulate inside the device after long-term heat dissipation.

[0010] The main body of the tubular member is a pipe body, and external spiral blades are arranged on the outer side of the pipe body. The pipe body communicates with the outside through the port of the end cover.

[0011] Further, internal threads are arranged on the inner side of the pipe body. The pipe body communicates with the coolant pipeline through the port of the end cover. Under the condition that the external environmental temperature is relatively high, the heat exchange effect between the flowing air and the surrounding air is poor. By communicating the port of the end cover with the cooling water pipeline, since internal threads are arranged on the inner side of the pipe body, the flowing cooling water drives the pipe body to rotate, and the external spiral blades arranged on the outer side of the pipe body push the air inside the channel II to flow, thereby promoting the air flow inside the channel II and the channel I, and performing heat exchange through the pipe body, improving the heat exchange effect and the heat dissipation effect on the rangefinder body.

[0012] Further, a sealing strip can be installed at the joint of the half-case I to improve the sealing effect.

[0013] Further, a number of heat dissipation fins are arranged on the outer side surface of the rangefinder body to improve the heat exchange effect.

[0014] The present invention has the following beneficial effects: 1. During the operation of the laser component of the present invention, the temperature generated inside is not easy to dissipate. The motor drives the propulsion blade to rotate, realizing that the propulsion blade pushes the air inside the channel I formed between the rangefinder body and the inner wall of the half-case I to move to one side and be discharged through one nozzle I, thereby allowing air to enter through the other nozzle I, and completing heat dissipation through the air flowing through the channel I.

[0015] 2. In the present invention, a propulsion blade is installed on the output end of the motor to push the air inside the first channel into the second channel, realizing the circulating flow of the air inside the second channel and the first channel, avoiding the entry of external air into the first channel, and effectively solving the problem of dust accumulation easily occurring inside the device after long-term heat dissipation.

[0016] 3. Under the condition that the external environmental temperature is relatively high, the heat exchange effect between the flowing air and the surrounding air is poor. The port of the end cap is communicated with the cooling water pipe. Since internal threads are provided on the inner side of the pipe body, the passing cooling water drives the pipe body to rotate. The external spiral blades provided on the outer side of the pipe body push the air inside the second channel to flow, thereby promoting the air flow inside the second channel and the first channel, and performing heat exchange through the pipe body to improve the heat exchange effect and the heat dissipation effect on the distance measuring instrument body.

[0017] Certainly, it is not necessary for any product implementing the present invention to achieve all the above-mentioned advantages simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for describing the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention, and those of ordinary skill in the art can obtain other drawings based on these drawings without creative efforts.

[0019] Figure 1 is the overall structural schematic diagram of the present invention; Figure 2 is the internal unfolded structural schematic diagram of the present invention; Figure 3 is the structural schematic diagram of the first half shell of the present invention; Figure 4 is the structural schematic diagram of the second half shell of the present invention; In the drawings, the list of components represented by each reference numeral is as follows: 1. First half shell; 101. Plane; 102. Connection section; 103. First pipe orifice; 104. Bayonet; 2. Fixed ring; 3. Sealing ring; 4. Distance measuring instrument body; 401. Protruding structure; 5. Connecting pipe; 6. Second half shell; 601. Second pipe orifice; 7. End cap; 8. Propulsion blade; 9. Tubular member; 901. Pipe body; 902. External threaded blade; 10. Motor. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are given for purposes of illustration and description, and are not exhaustive or limit the present invention to the disclosed form. Many modifications and variations will be obvious to those of ordinary skill in the art. The embodiments are chosen and described in order to better explain the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and design various embodiments with various modifications suitable for specific purposes. Embodiment

[0021] Please refer to Figure 1 - Figure 2 As shown, the present invention is an automatic calibration device for a handheld laser rangefinder, including a housing assembly and a rangefinder body 4. The housing assembly is mainly composed of two half-housings 1 spliced together. The end of the half-housing 1 is a connecting section 102, and a fixing ring 2 is installed on the connecting section 102 to fix the two half-housings 1. A flat surface 101 is provided on the half-housing 1, and a bayonet 104 is opened on the flat surface 101. Two pipe orifices 103 are symmetrically provided on the half-housing 1. The rangefinder body 4 is a columnar structure, and the end of the rangefinder body 4 is located in a connecting section 102. At the same time, the gap formed between the end of the rangefinder body 4 and the connecting section 102 is sealed by a sealing ring 3. A convex structure 401 matching the bayonet 104 is provided on the rangefinder body 4. A first channel is formed between the rangefinder body 4 and the inner wall of the half-housing 1, and the first channel communicates with the two pipe orifices 103. A motor 10 is installed in the other connecting section 102 of the half-housing 1, and a propulsion blade 8 is installed on the output end of the motor 10. The propulsion blade 8 is located in the channel.

[0022] During the working process, the temperature generated inside the laser component during operation is not easily dissipated. The motor 10 drives the propulsion blade 8 to rotate, so that the propulsion blade 8 pushes the air in the first channel formed between the rangefinder body 4 and the inner wall of the half-housing 1 to move to one side and is discharged through one pipe orifice 103, thereby inhaling air through the other pipe orifice 103 and completing heat dissipation through the air flowing through the first channel. Embodiment

[0023] Please refer to Figure 1 - Figure 3As shown in the figure, the present invention is an automatic calibration device for a handheld laser rangefinder, including a housing assembly and a rangefinder body 4. The housing assembly is mainly composed of two first half-housings 1 spliced together. The end of the first half-housing 1 is a connection section 102, and a fixing ring 2 is installed on the connection section 102 to fix the two first half-housings 1. A plane 101 is provided on the first half-housing 1, and a bayonet 104 is opened on the plane 101. Two first nozzles 103 are symmetrically provided on the first half-housing 1. The rangefinder body 4 is of a columnar structure, and the end of the rangefinder body 4 is located in a connection section 102. At the same time, the gap formed between the end of the rangefinder body 4 and the connection section 102 is sealed by a sealing ring 3. A convex structure 401 matching the bayonet 104 is provided on the rangefinder body 4. A first channel is formed between the rangefinder body 4 and the inner wall of the first half-housing 1, and the first channel communicates with the two first nozzles 103. A motor 10 is installed in the other connection section 102 of the first half-housing 1, and a propulsion blade 8 is installed on the output end of the motor 10. The propulsion blade 8 is located in the channel.

[0024] During the working process, the temperature generated inside the laser component during operation is not easily dissipated. The motor 10 drives the propulsion blade 8 to rotate, so that the propulsion blade 8 pushes the air in the first channel formed between the rangefinder body 4 and the inner wall of the first half-housing 1 to move to one side and is discharged through one first nozzle 103. Thus, air enters through the other first nozzle 103, and heat dissipation is completed through the air flowing through the first channel.

[0025] The connection sections 102 provided at both ends of the first half-housing 1 form a narrowing structure. The connection section 102 is provided with an external thread, and the fixing ring 2 is provided with an internal thread meshing with the external thread of the connection section 102. The two first half-housings 1 are fixedly installed through the fixing ring 2 fitted on the outside of the connection section 102. The connection sections 102 provided at both ends of the first half-housing 1 form a narrowing structure, which is convenient for increasing the volume of the first channel formed between the rangefinder body 4 and the inner wall of the first half-housing 1 and improving the heat exchange effect.

[0026] The bottom of the propulsion blade 8 is a disk body, and a number of blades are annularly distributed on the disk body. The circumferentially distributed blades are sleeved on the end of the rangefinder body 4, which is convenient for pushing air to flow from one end of the rangefinder body 4 to the other end and improving the heat dissipation effect.

[0027] It further includes a heat dissipation channel, which is mainly composed of two second half-housings 6 spliced together. Two second nozzles 601 are symmetrically provided on the second half-housing 6, and the second nozzles 601 are connected to the first nozzles 103 through a connecting pipe 5.

[0028] An end cover 7 is sleeved on the port formed by the two second half-housings 6. A tubular member 9 is installed in the second half-housing 6, and the port of the tubular member 9 communicates with the end cover 7. A second channel is formed between the tubular member 9 and the second half-housing 6, and the second channel is connected to the first channel through the connecting pipe 5.

[0029] A propulsion blade 8 is installed on the output end of the motor 10 to push the air inside the first channel into the second channel, realizing the circulating flow of the air inside the second channel and the first channel, preventing external air from entering the inside of the first channel, and effectively solving the problem of dust accumulation inside the device after long-term heat dissipation. Embodiment

[0030] Please refer to Figure 1 - Figure 4 As shown, the main body of the tubular part 9 is a tube body 901, an outer helical blade 902 is provided on the outer side of the tube body 901, and the tube body 901 communicates with the outside through the port of the end cover 7.

[0031] Internal threads are provided on the inner side of the tube body 901, and the tube body 901 communicates with the coolant pipeline through the port of the end cover 7.

[0032] Under the condition of a relatively high external environmental temperature, the heat exchange effect between the flowing air and the surrounding air is poor. By connecting the port of the end cover 7 to the cooling water pipeline, since internal threads are provided on the inner side of the tube body 901, the passing cooling water drives the rotation of the tube body 901. The outer helical blade 902 provided on the outer side of the tube body 901 pushes the air inside the second channel to flow, thereby promoting the air flow inside the second channel and the first channel. Heat exchange is carried out through the tube body 901 to improve the heat exchange effect and the heat dissipation effect on the distance measuring instrument body 4.

[0033] A sealing strip can be installed at the joint of the first half shell 1 to improve the sealing effect.

[0034] A number of heat dissipation fins are provided on the outer side surface of the distance measuring instrument body 4 to improve the heat exchange effect.

[0035] Working principle: During the working process, the distance measuring instrument body 4 is calibrated and positioned through the auxiliary line generated by the laser assembly. During the working process of the laser assembly, the temperature generated inside is not easy to dissipate. The motor 10 drives the propulsion blade 8 to rotate, realizing that the propulsion blade 8 pushes the air inside the channel 1 formed between the distance measuring instrument body 4 and the inner wall of the first half shell 1 to move to one side and be discharged through a first pipe orifice 103. Thus, air enters through the other first pipe orifice 103, and heat dissipation is completed through the air flowing through the channel 1; A propulsion blade 8 is installed on the output end of the motor 10 to push the air inside the first channel into the second channel, realizing the circulating flow of the air inside the second channel and the first channel, preventing external air from entering the inside of the first channel, and effectively solving the problem of dust accumulation inside the device after long-term heat dissipation; Under the condition that the external environmental temperature is relatively high, the heat exchange effect between the flowing air and the surrounding air is poor. It is connected to the cooling water pipeline through the port of the end cover 7. Since internal threads are provided on the inner side of the pipe body 901, the passing cooling water drives the pipe body 901 to rotate. The external spiral blades 902 provided on the outer side of the pipe body 901 push the air flow inside the second channel, thereby promoting the air flow inside the second channel and the first channel. Heat exchange is carried out through the pipe body 901 to improve the heat exchange effect and the heat dissipation effect on the distance measuring instrument body 4.

[0036] Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art and related fields without creative efforts shall fall within the protection scope of the present invention. The structures, devices, and operation methods not specifically described and explained in the present invention, unless otherwise specified and limited, are implemented according to the conventional means in the art.

Claims

1. An automatic calibration device for a handheld laser rangefinder, characterized in that, Comprising: A housing assembly, which is mainly composed of two first half-housings (1) spliced together. The end of the first half-housing (1) is a connection section (102), and a fixing ring (2) is installed on the connection section (102) to fix the two first half-housings (1). The first half-housing (1) is provided with a plane (101), a bayonet (104) is opened on the plane (101), and two first nozzles (103) are symmetrically arranged on the first half-housing (1). A rangefinder body (4), which is of a columnar structure. The end of the rangefinder body (4) is located within a connection section (102), and the gap formed between the end of the rangefinder body (4) and the connection section (102) is sealed by a sealing ring (3). The rangefinder body (4) is provided with a protruding structure (401) that cooperates with the bayonet (104). A first channel is formed between the rangefinder body (4) and the inner wall of the first half-housing (1), and the first channel communicates with the two first nozzles (103). A motor (10) is installed within the other connection section (102) of the first half-housing (1), and a propulsion blade (8) is installed on the output end of the motor (10). The propulsion blade (8) is located within the channel.

2. The automatic calibration device for a handheld laser rangefinder according to claim 1, wherein The connection sections (102) provided at both ends of the first half-housing (1) form a narrowing structure, and the connection section (102) is provided with an external thread. The fixing ring (2) is provided with an internal thread that meshes with the external thread of the connection section (102).

3. The automatic calibration device for a handheld laser rangefinder according to claim 1, characterized in that The bottom of the propulsion blade (8) is a disk body, and a number of blades are annularly distributed on the disk body. The circumferentially distributed blades are sleeved on the end of the rangefinder body (4).

4. An automatic calibration device for a handheld laser rangefinder according to claim 1, characterized in that, It further includes a heat dissipation channel, which is mainly composed of two second half-housings (6) spliced together. Two second nozzles (601) are symmetrically arranged on the second half-housing (6), and the second nozzles (601) are connected to the first nozzles (103) through a connecting pipe (5).

5. An automatic calibration device for a handheld laser rangefinder according to claim 4, characterized in that, An end cap (7) is sleeved on the port formed by the two second half-housings (6), and a tubular member (9) is installed within the second half-housing (6). The port of the tubular member (9) communicates with the end cap (7). A second channel is formed between the tubular member (9) and the second half-housing (6), and the second channel communicates with the first channel through the connecting pipe (5).

6. The automatic calibration device for a handheld laser rangefinder according to claim 5, characterized in that, The main body of the tubular member (9) is a pipe body (901), and an external spiral blade (902) is provided on the outer side of the pipe body (901). The pipe body (901) communicates with the outside through the port of the end cap (7).

7. An automatic calibration device for a handheld laser rangefinder according to claim 6, characterized in that, Internal threads are provided on the inner side of the pipe body (901), and the pipe body (901) communicates with the coolant pipeline through the port of the end cap (7).

8. The automatic calibration device for a handheld laser rangefinder according to claim 1, characterized in that, A sealing strip can be installed at the joint of the first half-housing (1).

9. The automatic calibration device for a handheld laser rangefinder according to claim 1, wherein, A number of heat dissipation fins are opened on the outer side surface of the rangefinder body (4).

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