CN216927226U

CN216927226U - Shashi particulate matter laser radar transmitting end objective focusing mechanism

Info

Publication number: CN216927226U
Application number: CN202220632711.0U
Authority: CN
Inventors: 胡君; 刁晓峰; 韩如霞; 安胜波; 管祖光; 邢鹤园
Original assignee: Fairsense Beijing Environment Technology Co ltd
Current assignee: Fairsense Beijing Environment Technology Co ltd
Priority date: 2022-03-22
Filing date: 2022-03-22
Publication date: 2022-07-08
Anticipated expiration: 2032-03-22

Abstract

The application discloses husky's particulate matter laser radar transmitting end objective focusing mechanism, it is including setting up in the lens cone and keeping away from the objective of laser instrument transmitting module one end and the objective seat that is used for installing objective, the internal thread has been seted up to the one end that just keeps away from laser instrument transmitting module in the lens cone, the outer peripheral face of objective seat seted up with interior screw-thread fit's external screw thread, the lateral wall of objective seat still threaded connection has the location jackscrew, the lateral wall that the objective seat was passed to the one end of location jackscrew and the inner wall butt of lens cone. The lens barrel has the effect of facilitating the adjustment of the position of the objective lens in the lens barrel.

Description

Shashi particulate matter laser radar transmitting end objective focusing mechanism

Technical Field

The application relates to the technical field of environmental pollution check out test set, especially relates to a sha shi particulate matter laser radar transmitting end objective focusing mechanism.

Background

At present, along with the gradual enhancement of people's environmental protection consciousness, the demand that detects to environmental quality is bigger and bigger, uses the application that laser instrument detected air quality also more and more generally.

The laser comprises a laser emitting module, a lens barrel and an objective lens, wherein the laser emitting module is arranged on one side of the lens barrel and used for emitting laser. The objective lens is arranged in the lens barrel through the objective lens seat and is far away from one end of the laser emission module, and laser generated by the laser emission module penetrates through the objective lens to irradiate the air for lightening impurities in the air.

However, since the lens barrel is easily subjected to tolerance in the production process, and thus the focal length between the objective lens and the laser emitting module varies, it is difficult to achieve the most concentrated state of the optical spot.

SUMMERY OF THE UTILITY MODEL

The application provides a sha shi particulate matter laser radar transmitting end objective focusing mechanism is convenient for adjust the position of objective in the lens-barrel.

The application provides a pair of sha shi particulate matter laser radar transmitting end objective focusing mechanism adopts following technical scheme:

the utility model provides a sha shi particulate matter laser radar transmitting end objective focusing mechanism, is including setting up in the lens cone and keeping away from the objective of laser instrument transmitting module one end and the objective seat that is used for installing objective, the internal thread has been seted up to the one end that just keeps away from laser instrument transmitting module in the lens cone, the external screw thread with interior screw-thread fit has been seted up to the outer peripheral face of objective seat, the lateral wall of objective seat still threaded connection has the location jackscrew, the lateral wall of objective seat and the inner wall butt of lens cone are passed to the one end of location jackscrew.

Through adopting above-mentioned technical scheme, when the position of needs to objective is adjusted, operating personnel can rotate the objective seat to change the position of objective seat in the lens cone, when the objective seat is adjusted to suitable position, screw up the location jackscrew after that, thereby fix convenient operation to the objective seat.

Preferably, one end of the objective lens seat close to the laser emission module is provided with a mounting groove for mounting the objective lens, and an objective lens pressing ring for pressing the objective lens is connected with the mounting groove in a threaded manner.

Through adopting above-mentioned technical scheme, the cooperation setting of objective clamping ring and mounting groove is convenient for change and install objective, also is convenient for install the objective of different thickness simultaneously, and loading and unloading are convenient.

Preferably, the objective lens clamping ring is provided with a clamping ring near the end surface of the objective lens.

Through adopting above-mentioned technical scheme, the setting of clamp ring is convenient for support tight objective, has reduced the probability that objective takes place to rock between clamp ring and mounting groove.

Preferably, the end face, far away from the objective, of the objective pressing ring is provided with a limiting convex ring, and the outer diameter of the limiting convex ring is larger than that of the objective pressing ring.

Through adopting above-mentioned technical scheme, the setting of spacing bulge loop is convenient for carry on spacingly to the objective clamping ring to reduced the probability that the objective clamping ring caused the damage because excessively rotate to objective.

Preferably, the side wall of the mounting groove facing the laser emission module is provided with an elastic rubber ring.

Through adopting above-mentioned technical scheme, elastic rubber ring is made by elastic material, has elasticity to be convenient for protect objective.

Preferably, the side wall of the elastic rubber ring is provided with an elastic clamping ring, and the mounting groove is provided with a clamping groove for embedding the elastic clamping ring towards the side wall of the laser emission module.

Through adopting above-mentioned technical scheme, the cooperation setting in elasticity joint ring and joint groove is convenient for change and install the elasticity rubber ring.

Preferably, the peripheral surface of the objective lens seat is provided with a sealing ring, and the peripheral surface of the sealing ring is abutted against the inner wall of the lens barrel.

By adopting the technical scheme, the sealing ring is arranged to seal the gap between the objective lens seat and the lens cone, so that the probability of moisture entering the lens cone is reduced.

Preferably, a plurality of slots are formed in the end face, back to the laser emission module, of the objective lens seat, and the slots are arranged at equal intervals along the circumferential direction of the objective lens seat.

Through adopting above-mentioned technical scheme, the setting of a plurality of slots is convenient for operating personnel to use the instrument to rotate the objective lens seat, and then makes the rotation of objective lens seat more convenient.

In summary, the present application has the following beneficial effects:

1. when the position of the objective lens needs to be adjusted, an operator can rotate the objective lens seat so as to change the position of the objective lens seat in the lens barrel, and when the objective lens seat is adjusted to a proper position, the positioning jackscrew is screwed down so as to fix the objective lens seat, so that the operation is convenient;

2. the cooperation setting of objective clamping ring and mounting groove is convenient for change and install objective, also is convenient for install the objective of different thickness simultaneously, and loading and unloading are convenient.

Drawings

Fig. 1 is a schematic overall structure diagram of an embodiment of the present application.

Fig. 2 is a partial sectional view of a lens barrel of an embodiment of the present application.

Fig. 3 is a partially enlarged view of a portion a in fig. 2.

Description of reference numerals: 1. a lens barrel; 11. an internal thread; 2. a laser emitting module; 3. an objective lens; 4. an objective lens base; 41. an external thread; 42. mounting grooves; 43. a clamping groove; 44. a slot; 5. positioning a jackscrew; 6. an objective lens pressing ring; 61. a compression ring; 62. a limit convex ring; 7. an elastic rubber ring; 71. an elastic clamping ring; 8. and (5) sealing rings.

Detailed Description

The application discloses sha shi particulate matter laser radar transmitting end objective focusing mechanism refers to fig. 1 and 2, including objective 3, objective seat 4 and objective clamping ring 6. Objective seat 4 is the ring form structure, and external screw thread 41 has been seted up to objective seat 4's outer peripheral face, and internal thread 11 has been seted up to the one end of keeping away from laser emission module 2 in the lens cone 1, and external screw thread 41's length is good at to internal thread 11's length, and objective seat 4 passes through external screw thread 41, internal thread 11's cooperation and lens cone 1 threaded connection to be convenient for through the mode of rotating objective seat 4, adjust the position of objective 3 in lens cone 1. One end threaded connection that laser instrument emission module 2 was kept away from to objective lens seat 4 has a plurality of location jackscrews 5, and a plurality of location jackscrews 5 set up along objective lens seat 4's circumference equidistance interval. One end of the positioning jackscrew 5 passes through the side wall of the objective lens seat 4 and is abutted against the inner wall of the lens cone 1.

Referring to fig. 2, an installation groove 42 is formed in the objective lens holder 4, and the installation groove 42 is used for placing the objective lens 3. The objective lens clamping ring 6 is of a circular ring-shaped structure, and the objective lens clamping ring 6 is in threaded connection with the mounting groove 42. The end surface of the objective lens pressing ring 6 close to the objective lens 3 is provided with a pressing ring 61 for tightly abutting against the objective lens 3. The terminal surface that objective lens clamping ring 6 kept away from objective lens 3 is provided with spacing bulge loop 62, and the internal diameter of spacing bulge loop 62 equals the internal diameter of objective lens clamping ring 6, and the external diameter of spacing bulge loop 62 is greater than the external diameter of objective lens clamping ring 6 to the external diameter of spacing bulge loop 62 is less than the internal diameter of lens cone 1, thereby reduces objective lens clamping ring 6 because excessive rotation, and causes the probability of damage to objective lens 3. The objective lens pressing ring 6, the pressing ring 61 and the limit convex ring 62 are integrally formed.

Referring to fig. 2 and 3, in order to reduce the damage of the side wall of the objective lens holder 4 to the objective lens 3, the mounting groove 42 is provided with an elastic rubber ring 7 facing the side wall of the laser emission module 2, and the elastic rubber ring 7 is made of rubber or silica gel, and the embodiment is preferably made of rubber. The elastic rubber ring 7 is integrally formed with an elastic clamping ring 71 on the side wall back to the laser emitting module 2, and the section of the elastic clamping ring 71 is in a T shape. The mounting groove 42 has been seted up towards the lateral wall of laser emission module 2 joint groove 43, and the cross-section in joint groove 43 is the T shape, and elasticity joint ring 71 sets up with the cooperation of joint groove 43.

Referring to fig. 2, in order to improve the sealing performance of the objective lens holder 4, an annular groove is formed in the outer peripheral surface of the objective lens holder 4, a sealing ring 8 is sleeved in the annular groove, the sealing ring 8 is made of rubber, and the outer peripheral surface of the sealing ring 8 abuts against the inner wall of the lens barrel 1. In order to rotate the objective lens base 4, a plurality of slots 44 are formed in the end face, back to the objective lens pressing ring 6, of the objective lens base 4, and the slots 44 are arranged along the circumferential direction of the objective lens base 4 at equal intervals, so that an operator can rotate the objective lens base 4 by using a tool conveniently.

The implementation principle of the embodiment of the application is as follows: before objective lens seat 4 has not yet installed to lens cone 1 in, operating personnel installs objective lens 3 in mounting groove 42 earlier, screw up objective lens clamping ring 6 in mounting groove 42 after that, thereby compress tightly fixedly objective lens 3, put into objective lens seat 4 to lens cone 1 in after, rotate objective lens seat 4, after objective lens 3 moves to suitable position, screw up a plurality of location jackscrews 5, thereby fix objective lens seat 4, and then accomplish the regulation work to objective lens 3.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a sha shi particulate matter laser radar transmitting end objective focusing mechanism, is including setting up objective (3) and objective seat (4) that are used for installing objective (3) that set up in lens cone (1) and keep away from laser instrument transmitting module (2) one end, its characterized in that: the lens barrel is characterized in that an internal thread (11) is formed in one end, far away from the laser emitting module (2), of the lens barrel (1), an external thread (41) matched with the internal thread (11) is formed in the outer peripheral surface of the objective lens seat (4), a positioning jackscrew (5) is further in threaded connection with the side wall of the objective lens seat (4), and one end of the positioning jackscrew (5) penetrates through the side wall of the objective lens seat (4) and abuts against the inner wall of the lens barrel (1).

2. The sha shi particulate matter lidar transmitting end objective lens focusing mechanism of claim 1, wherein: one end of the objective lens seat (4) close to the laser emission module (2) is provided with a mounting groove (42) for mounting the objective lens (3), and the mounting groove (42) is internally connected with an objective lens pressing ring (6) for pressing the objective lens (3).

3. The sha's particulate matter lidar transmission-end objective focusing mechanism of claim 2, wherein: and a compression ring (61) is arranged on the end surface of the objective lens pressing ring (6) close to the objective lens (3).

4. The sha shi particulate matter lidar transmitting end objective lens focusing mechanism of claim 3, wherein: the end face, far away from the objective lens (3), of the objective lens pressing ring (6) is provided with a limiting convex ring (62), and the outer diameter of the limiting convex ring (62) is larger than that of the objective lens pressing ring (6).

5. The sha shi particulate matter lidar transmitting end objective focusing mechanism of claim 2, wherein: and an elastic rubber ring (7) is arranged on the side wall of the mounting groove (42) facing the laser emission module (2).

6. The sha shi particulate matter lidar transmitting end objective lens focusing mechanism of claim 5, wherein: the lateral wall of elasticity rubber ring (7) is provided with elasticity joint ring (71), joint groove (43) that are used for inlaying and establish elasticity joint ring (71) are offered towards the lateral wall of laser instrument emission module (2) in mounting groove (42).

7. The sha shi particulate matter lidar transmitting end objective lens focusing mechanism of claim 1, wherein: the outer peripheral surface of the objective lens seat (4) is provided with a sealing ring (8), and the outer peripheral surface of the sealing ring (8) is tightly propped against the inner wall of the lens cone (1).

8. The sha shi particulate matter lidar transmitting end objective lens focusing mechanism of claim 1, wherein: a plurality of slots (44) have been seted up to objective lens seat (4) terminal surface dorsad laser instrument emission module (2), and is a plurality of slot (44) set up along the circumference equidistance interval of objective lens seat (4).