CN218381009U

CN218381009U - Laser pay-off instrument

Info

Publication number: CN218381009U
Application number: CN202222670167.1U
Authority: CN
Inventors: 梁珍柱; 王军; 雒小刚; 凌期鹏; 任彬; 强小文
Original assignee: SCEGC No 5 Construction Engineering Group Co Ltd
Current assignee: SCEGC No 5 Construction Engineering Group Co Ltd
Priority date: 2022-09-30
Filing date: 2022-09-30
Publication date: 2023-01-24
Anticipated expiration: 2032-09-30

Abstract

The utility model discloses a laser pay-off instrument, which comprises a shell, wherein an upper laser head and a lower laser head are arranged in the shell along the vertical direction, and a horizontal laser head is arranged along the horizontal direction; the top and the bottom of the shell are provided with first through holes matched with the upper laser head and the lower laser head, the side wall of the shell is provided with second through holes matched with the horizontal laser head, and the inner side wall of the shell is provided with a vertical driving assembly used for driving the upper laser head and the lower laser head and a horizontal driving assembly used for driving the horizontal laser head; the first through hole is provided with a first protection pad, and the second through hole is movably provided with a second protection pad. The utility model discloses can carry out perpendicular unwrapping wire to the top and the below of laser instrument simultaneously, and can carry out horizontal unwrapping wire to the side of laser instrument, laser head, lower laser head and horizontal laser head do not receive the damage on also can effectual protection through the setting of first protection pad and second protection pad.

Description

Laser pay-off instrument

Technical Field

The utility model relates to a laser unwrapping wire technical field especially relates to a laser unwrapping wire appearance.

Background

With the rapid development of laser light source technology, the laser pay-off instrument is used as a device for providing a reference line, and is widely applied to the fields of engineering construction, interior decoration, measurement and mapping due to the advantage that the laser pay-off instrument can be operated by one person and a permanent mark is not required to be left on a target surface.

The invention patent application with publication number CN111220137A discloses a laser line projector, which comprises a machine core and a machine shell, wherein: the movement comprises a 360-degree laser module, a window body is arranged outside the 360-degree laser module, and a laser output window is arranged on the window body; the shell is provided with an opening matched with the window body; the laser demarcation device also comprises a driving device, wherein the driving device is used for driving the movement of the movement to enable the window body to be exposed out of the shell through the opening, and is used for driving the movement to enable the window body to fall into the shell through the opening. In the embodiment, when the window is not used, the window body and the 360-degree laser module are positioned in the shell, so that the window body is protected, and the laser output window is prevented from being damaged by impact, collision and the like from the external environment; meanwhile, the shell is provided with the opening, the driving device for driving the movement of the movement is arranged in the shell, and the window body can be controlled to be exposed out of the opening or return into the shell under the action of the driving device, so that the window is simple to operate and convenient to use. However, the laser demarcation device can only pay off along one direction, and the opening on the machine shell is not provided with a protection device, so that dust is easily accumulated in the machine shell, and the machine core can be damaged when impurities fall into the opening.

Disclosure of Invention

To the problem that exists, the utility model aims at providing a laser unwrapping wire appearance can carry out perpendicular unwrapping wire to the top and the below of laser appearance simultaneously through the setting of last laser head, lower laser head and horizontal laser head, and can carry out horizontal unwrapping wire to the side of laser appearance, and laser head, lower laser head and horizontal laser head do not receive the damage on also can effectual protection through the setting of first protection pad and second protection pad.

In order to realize the purpose, the utility model discloses the technical scheme who adopts as follows:

the utility model provides a laser unwrapping wire appearance, includes the casing, its characterized in that: an upper laser head and a lower laser head are arranged in the shell along the vertical direction, and a horizontal laser head is arranged along the horizontal direction; the top and the bottom of casing seted up with go up laser head and lower laser head assorted first through-hole, seted up on the lateral wall of casing with horizontal laser head assorted second through-hole, just install on the inside wall of casing and be used for the drive go up the vertical drive subassembly of laser head and lower laser head, and be used for the drive the horizontal drive subassembly of horizontal laser head.

Further, the vertical driving assembly comprises a first driving motor and a first mounting frame which are fixedly arranged on the inner side wall of the shell, a first screw rod is connected to an output shaft of the first driving motor in a transmission mode, a first nut is connected to the first screw rod in a threaded mode, a first connecting rod is fixedly arranged on the first nut and penetrates through the first mounting frame, the first connecting rod is located at one end outside the first mounting frame, a first mounting plate is fixedly arranged at the outer end of the first mounting frame, the first mounting plate is connected with the outer surface of the first mounting frame in a sliding mode, and the laser head is mounted on the corresponding first mounting plate.

Furthermore, a second screw is connected to an output shaft of the first driving motor, a driving gear is fixedly sleeved on the second screw, a driven gear is fixedly sleeved on the first screw, and the driving gear is meshed with the driven gear.

Further, the horizontal drive subassembly is including setting firmly second installing frame on the casing inside wall, install second driving motor in the second installing frame, be connected with the third screw rod on second driving motor's the output shaft, threaded connection has the third nut on the third screw rod, the third connecting rod has set firmly on the third nut, the third connecting rod runs through the second installing frame, just the third connecting rod is located the outer one end of second installing frame has set firmly the second mounting panel, the second mounting panel with the surface sliding connection of second installing frame, horizontal laser head is installed on the second installing frame.

Furthermore, first mounting grooves are further formed in the top and the bottom of the shell, the first mounting grooves are communicated with the first through holes corresponding to each other, second mounting grooves are formed in the side wall of the shell, the second mounting grooves are communicated with the first mounting grooves, and the same flexible first protection pad is movably arranged in the first through holes, the first mounting grooves and the second mounting grooves.

Furthermore, a second nut is connected to the second screw rod in a threaded manner, a second connecting rod is fixedly arranged on the second nut and penetrates through the shell, and the end portion of the second connecting rod is fixedly connected with the first protection pad.

Furthermore, a third mounting groove is further formed in the side face, provided with the second through hole, of the shell, the third mounting groove is communicated with the second through hole, and a second protection pad is movably arranged in the third mounting groove and the second through hole.

Further, the third screw rod is kept away from second driving motor's one end runs through the second installing frame, just the tip of third screw rod has set firmly first bevel gear, two fixed plates have set firmly on the inside wall of seting up the second through-hole on the casing, two it is connected with the fourth screw rod to rotate between the fixed plate, fixed cover is equipped with the second bevel gear on the fourth screw rod, first bevel gear with second bevel gear intermeshing.

Furthermore, a fourth nut is connected to the fourth screw rod in a threaded manner, a fourth connecting rod is fixedly connected to the fourth nut, and the end portion of the fourth connecting rod is fixedly connected with the second protection pad.

The utility model has the advantages that: compared with the prior art, the utility model has the improvement that,

1. the laser pay-off instrument of the utility model is provided with an upper laser head, a lower laser head and a horizontal laser head in the shell, can simultaneously carry out vertical pay-off on the upper part and the lower part of the laser instrument, and can simultaneously carry out horizontal pay-off on the side surface of the laser instrument; the upper laser head, the lower laser head and the horizontal laser head which correspond to each other can be accommodated in the shell through the vertical driving assembly and the horizontal driving assembly, the upper laser head, the lower laser head and the horizontal laser head are protected, and the laser heads are prevented from being damaged by impact and collision in an external environment; meanwhile, the corresponding upper laser head, the lower laser head and the horizontal laser head can also extend out of the shell through the vertical driving assembly and the horizontal driving assembly, so that the paying-off operation is not influenced.

2. The utility model discloses a first through-hole and second through-hole department that laser unwrapping wire appearance was seted up on the casing correspond respectively and are equipped with first protection pad and second protection pad, at last laser head, when lower laser head and horizontal laser head were located the casing, first protection pad and second protection pad can seal first through-hole and second through-hole on the casing to avoid the dust to fall into the casing deposition, also avoided getting into the interior impurity of casing from first through-hole and second through-hole and to last laser head, lower laser head and horizontal laser head cause the damage.

3. The upper laser head and the lower laser head of the utility model are respectively provided with a vertical driving assembly, the horizontal laser head is provided with a horizontal driving assembly, when the vertical driving assembly drives the corresponding upper laser head or the corresponding lower laser head to extend out of the shell, the first protection pad in the first through hole is moved into the first mounting groove and the second mounting groove, the first through hole is opened along with the extension of the upper laser head or the lower laser head, otherwise, when the upper laser head or the lower laser head is received in the shell, the first protection pad synchronously seals the first through hole; in a similar way, the second through hole is opened when the horizontal driving assembly drives the horizontal laser head to stretch out of the shell, the second through hole is sealed when the horizontal laser head is received inside the shell, and the horizontal laser head is convenient to use and can be operated without other operations.

Drawings

Fig. 1 is the utility model discloses laser head, lower laser head and horizontal laser head when laser unwrapping wire appearance goes up the laser head and is located the casing structural schematic.

Fig. 2 is a partial enlarged view of a portion a of fig. 1 according to the present invention.

Fig. 3 is a partially enlarged view of the structure B in fig. 1 according to the present invention.

Fig. 4 is the utility model discloses laser head, lower laser head and horizontal laser head on the laser unwrapping wire appearance are located corresponding first through-hole and second through-hole respectively when structural schematic.

Wherein: 1-shell, 101-first through hole, 102-second through hole, 103-first mounting groove, 104-second mounting groove, 105-third mounting groove, 106-connecting column, 2-upper laser head, 3-lower laser head, 4-horizontal laser head, 5-first driving motor, 6-first mounting frame, 7-first screw, 8-first nut, 9-first connecting rod, 10-first mounting plate, 11-second screw, 12-driving gear, 13-driven gear, 14-second mounting frame, 15-second driving motor, 16-third screw, 17-third nut, 18-third connecting rod, 19-second mounting plate, 20-first protective pad, 21-second nut, 22-second connecting rod, 23-second protective pad, 24-first bevel gear, 25-fixing plate, 26-fourth screw, 27-second bevel gear, 28-fourth nut, 29-fourth connecting rod.

Detailed Description

In order to make those skilled in the art better understand the technical solution of the present invention, the following describes the technical solution of the present invention with reference to the accompanying drawings and embodiments.

The first embodiment is as follows:

the utility model provides a laser unwrapping wire appearance, includes casing 1, its characterized in that: an upper laser head 2 and a lower laser head 3 are arranged in the shell 1 along the vertical direction, and a horizontal laser head 4 is arranged along the horizontal direction; the top and the bottom of the shell 1 are provided with first through holes 101 matched with the upper laser head 2 and the lower laser head 3, the side wall of the shell 1 is provided with second through holes 102 matched with the horizontal laser heads 4, and the inner side wall of the shell 1 is provided with a vertical driving assembly for driving the upper laser head 2 and the lower laser head 3 and a horizontal driving assembly for driving the horizontal laser heads 4; the vertical driving assembly can drive the corresponding upper laser head 2 or the corresponding lower laser head 3 to extend out of the shell 1 or be retracted into the shell 1 through the first through hole 101, and the horizontal driving assembly can drive the horizontal laser head 4 to extend out of the shell 1 or be retracted into the shell 1 through the second through hole 102.

Specifically, the vertical driving assembly includes a first driving motor 5 and a first mounting frame 6 which are fixedly arranged on the inner side wall of the housing 1, the first driving motor 5 is located outside the first mounting frame 6, an output shaft of the first driving motor 5 is connected with a second screw 11, the second screw 11 penetrates through the first mounting frame 6, a contact portion between the second screw 11 and the first mounting frame 6 and an end portion of the second screw 11 are rotatably connected with the inner side of the second mounting frame 6 through bearings, a driving gear 12 is fixedly sleeved on the second screw 11, a first screw 7 is further rotatably arranged in the first mounting frame 6, two ends of the first screw 7 are rotatably connected with the inner side wall of the first mounting frame 6 through bearings, a driven gear 13 is fixedly sleeved on the first screw 7, and the driving gear 12 is mutually engaged with the driven gear 13; when the first driving motor 5 works, the second screw 11 and the driving gear 12 can be driven to rotate, and the first screw 7 is driven to rotate under the meshing action of the driving gear 12 and the driven gear 13.

Threaded connection has first nut 8 on the first screw rod 7, the head rod 9 has set firmly on the first nut 8, the head rod 9 runs through first installing frame 6, seted up on the first installing frame 6 with the head rod 9 assorted through-hole of stepping down, just the head rod 9 is located the outer one end of first installing frame 6 has set firmly first mounting panel 10, first mounting panel 10 with the surface sliding connection of first installing frame 6, sliding connection between first mounting panel 10 and the first installing frame 6 adopt current sliding connection mode can, do not do in this application and give unnecessary details go up laser head 2 with laser head 3 is installed on the first mounting panel 10 that corresponds down. When the first screw rod 7 rotates, due to the limiting effect of the first mounting frame 6, the first nut 8 and the first connecting rod 9 move up and down along with the rotation of the first screw rod 7, so that the first mounting plate 10 is driven to move up and down along the outer side wall of the first mounting frame 6, the upper laser head 2 or the lower laser head 3 is moved in the vertical direction, and the upper laser head 2 or the lower laser head 3 extends out of the shell 1 or is received into the shell 1.

Horizontal drive subassembly is including setting firmly second installing frame 14 on the 1 inside wall of casing, install second driving motor 15 in the second installing frame 14, second driving motor 15 is located second installing frame 14, just be connected with third screw rod 16 on second driving motor 15's the output shaft, third screw rod 16's tip with second installing frame 14's inside wall passes through bearing rotation and connects, threaded connection has third nut 17 on the third screw rod 16, third connecting rod 18 has set firmly on the third nut 17, third connecting rod 18 runs through second installing frame 14, offers on the second installing frame 14 to be used for the through-hole of stepping down of 18 horizontal migration of third connecting rod, third connecting rod 18 is located the outer one end of second installing frame 14 has set firmly second mounting panel 19, second mounting panel 19 with the surface sliding connection of second installing frame 14 the sliding connection between second mounting panel 19 and the second installing frame 14 also adopts the sliding connection mode in the prior art can, horizontal drive installs 4 are in the second installing frame 14. The second driving motor 15 can drive the third screw 16 to rotate when working, so as to drive the third nut 17 and the third connecting rod 18 to move horizontally, and further drive the second mounting plate 19 to move horizontally, so that the horizontal laser head 4 extends out of the shell 1 or is retracted into the shell 1. It should be noted that heat dissipation holes for heat dissipation of the driving motor are respectively formed in the second mounting frame 14 and the housing 1.

The utility model discloses a theory of operation: when the utility model is used, the upper laser head 2 or the lower laser head 3 or the horizontal laser head 4 can be controlled independently, and the corresponding laser head is adjusted to extend out of the shell 1 or be retracted into the shell 1 according to the paying-off direction; when the upper laser head 2, the lower laser head 3 and the horizontal laser head 4 are positioned in the shell 1, the shell 1 can protect the upper laser head 2, the lower laser head 3 and the horizontal laser head 4, and the laser heads are prevented from being damaged by impact and collision in an external environment; when needing unwrapping wire operation, select corresponding last laser head, lower laser head or horizontal laser head as required to stretch out to outside the casing 1 to do not influence the unwrapping wire operation.

When the upper laser head 2 or the lower laser head 3 needs to be used, the corresponding first driving motor 5 is started to drive the second screw rod 11 and the driving gear 12 to rotate, and the first screw rod 7 is driven to rotate under the meshing action of the driving gear 12 and the driven gear 13; when the first screw rod 7 rotates, due to the limiting effect of the first mounting frame 6, the first nut 8 and the first connecting rod 9 move up and down along with the rotation of the first screw rod 7, so that the first mounting plate 10 is driven to move up and down along the outer side wall of the first mounting frame 6, the upper laser head 2 or the lower laser head 3 is moved in the vertical direction, and the upper laser head 2 or the lower laser head 3 extends out of the shell 1 or is received into the shell 1.

When the horizontal laser head 4 needs to be used, the second driving motor 15 is started to drive the third screw rod 16 to rotate, and due to the limiting effect of the second mounting frame 14, the third nut 17 and the third connecting rod 18 horizontally move along with the rotation of the third screw rod 16, so that the second mounting plate 19 is driven to horizontally move, and the horizontal laser head 4 extends out of the shell 1 or is retracted into the shell 1.

Example two:

on the basis of the first embodiment, in order to prevent external impurities from entering the casing 1 through the first through hole 101 and the second through hole 102, the top and the bottom of the casing 1 are further provided with a first mounting groove 103, the first mounting groove 103 is communicated with the first through hole 101 corresponding to the first mounting groove 103, the side wall of the casing 1 is provided with a second mounting groove 104, the second mounting groove 104 is communicated with the first mounting groove 103, the first mounting groove 103 is perpendicular to the second mounting groove 104, the joint of the second mounting groove 104 and the first mounting groove 103 is in a rounded structure, the first flexible first protection pad 20 is movably arranged in the first through hole 101, the first mounting groove 103 and the second mounting groove 104, and the first protection pad 20 can be bent and moved in the first through hole 101, the first mounting groove 103 and the second mounting groove 104.

A second nut 21 is connected to the second screw 11 in a threaded manner, a second connecting rod 22 is fixedly arranged on the second nut 21, the second connecting rod 22 penetrates through the shell 1, the end of the second connecting rod 22 is fixedly connected with the first protection pad 20, and a yielding through hole which is used for the second connecting rod 22 to move up and down in the vertical direction is formed in the shell 1; in the rotating process of the second screw 11, the second nut 21 and the second connecting rod 22 are limited by the housing 1 and can only move up and down in the vertical direction, so as to drive the first protection pad 20 to move along the first through hole 101, the first mounting groove 103 and the second mounting groove 104.

Further, a third mounting groove 105 is further formed in the side surface of the housing 1, where the second through hole 102 is formed, the third mounting groove 105 is located above the second through hole 102, the third mounting groove 105 is communicated with the second through hole 102, and a second protection pad 23 is movably arranged in the third mounting groove 105 and the second through hole 102.

One end of the third screw 16, which is far away from the second driving motor 15, penetrates through the second mounting frame 14, a first bevel gear 24 is fixedly arranged at an end of the third screw 16, two fixing plates 25 are fixedly arranged on an inner side wall of the shell 1, which is provided with a second through hole 102, a fourth screw 26 is rotatably connected between the two fixing plates 25 through a bearing, a second bevel gear 27 is fixedly sleeved on the fourth screw 26, and the first bevel gear 24 and the second bevel gear 27 are meshed with each other.

Still threaded connection has a fourth nut 28 on the fourth screw rod 26, fourth nut 28 is located the top of second bevel gear 27, just fixedly connected with fourth connecting rod 29 on the fourth nut 28, fourth connecting rod 29 runs through casing 1, seted up on the casing 1 with the through-hole of stepping down of fourth connecting rod 29 assorted, just the tip of fourth connecting rod 29 with second protection pad 23 fixed connection. The third screw 16 rotates under the action of the second driving motor 15, so as to drive the first bevel gear 24 to rotate, so as to drive the second bevel gear 27 engaged with the first bevel gear to rotate, the second bevel gear 27 rotates to drive the fourth screw 26 to rotate, and under the limiting action of the shell 1, the fourth nut 28 and the fourth connecting rod 29 move up and down along the second through hole 102 and the fifth mounting groove 105, so as to drive the second protection pad 23 to move up and down, so as to open or close the second through hole 102.

The working principle of the laser pay-off instrument in the embodiment is as follows: when the upper laser head 2 or the lower laser head 3 needs to be used, the corresponding first driving motor 5 is started to drive the second screw rod 11 and the driving gear 12 to rotate, and the first screw rod 7 is driven to rotate under the meshing action of the driving gear 12 and the driven gear 13; when the first screw 7 rotates, due to the limiting effect of the first mounting frame 6, the first nut 8 and the first connecting rod 9 move up and down along with the rotation of the first screw 7, so that the first mounting plate 10 is driven to move up and down along the outer side wall of the first mounting frame 6, the upper laser head 2 or the lower laser head 3 is moved in the vertical direction, and the upper laser head 2 or the lower laser head 3 extends out of the shell 1 or is retracted into the shell 1; the second screw 11 and the first screw 7 are meshed with each other, so that the rotation directions of the two screws are opposite, when the first nut 8 moves upwards and the upper laser head 2 extends out of the shell 1, the second nut 21 moves downwards under the rotation action of the second screw 11, so that the lower end of the first protection pad 20 is driven to move downwards and the first through hole 101 is opened, otherwise, when the upper laser head 2 is retracted into the shell 1, the first protection pad 20 moves upwards and seals the first through hole 101, so that the effect of protecting the upper laser head 2 is achieved; the operating principle of the lower laser head 2 is the same.

When the horizontal laser head 4 needs to be used, the second driving motor 15 is started to drive the third screw 16 to rotate, and due to the limiting effect of the second mounting frame 14, the third nut 17 and the third connecting rod 18 horizontally move along with the rotation of the third screw 16, so that the second mounting plate 19 is driven to horizontally move, and the horizontal laser head 4 extends out of the shell 1 or is retracted into the shell 1; the third screw 16 drives the first bevel gear 24 to rotate while rotating, so as to drive the second bevel gear 27 meshed with the first bevel gear to rotate, the second bevel gear 27 drives the fourth screw 26 to rotate, and under the limiting action of the shell 1, the fourth nut 28 and the fourth connecting rod 29 move up and down along the second through hole 102 and the fifth mounting groove 105, so as to drive the second protection pad 23 to move up and down, so as to open or close the second through hole 102; by setting the rotation direction between the fourth screw rod 26 and the fourth nut 28, it is ensured that the second protection pad 23 moves upwards to open the second through hole 102 while the horizontal laser head 4 extends out of the housing 1.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A laser actinometer, comprising a housing (1), characterized in that: an upper laser head (2) and a lower laser head (3) are arranged in the shell (1) along the vertical direction, and a horizontal laser head (4) is arranged along the horizontal direction; the top and the bottom of casing (1) seted up with go up laser head (2) and lower laser head (3) assorted first through-hole (101), seted up on the lateral wall of casing (1) with horizontal laser head (4) assorted second through-hole (102), just install on the inside wall of casing (1) and be used for the drive go up the vertical drive subassembly of laser head (2) and lower laser head (3), and be used for the drive the horizontal drive subassembly of horizontal laser head (4).

2. The laser actinometer as claimed in claim 1, wherein: perpendicular drive assembly is including setting firmly first driving motor (5) and first installing frame (6) on casing (1) inside wall, the transmission is connected with first screw rod (7) on the output shaft of first driving motor (5), threaded connection has first nut (8) on first screw rod (7), set firmly head rod (9) on first nut (8), head rod (9) run through first installing frame (6), just head rod (9) are located the outer one end of first installing frame (6) has set firmly first mounting panel (10), first mounting panel (10) with the surface sliding connection of first installing frame (6), go up laser head (2) with install on corresponding first mounting panel (10) laser head (3) down.

3. A laser actinometer as claimed in claim 2, characterized in that: the output shaft of the first driving motor (5) is connected with a second screw (11), the second screw (11) is fixedly sleeved with a driving gear (12), the first screw (7) is fixedly sleeved with a driven gear (13), and the driving gear (12) is meshed with the driven gear (13).

4. A laser line striper as in claim 3 wherein: horizontal drive subassembly is including setting firmly second installing frame (14) on casing (1) inside wall, install second driving motor (15) in second installing frame (14), be connected with third screw rod (16) on the output shaft of second driving motor (15), threaded connection has third nut (17) on third screw rod (16), third connecting rod (18) have set firmly on third nut (17), third connecting rod (18) run through second installing frame (14), just third connecting rod (18) are located the outer one end of second installing frame (14) has set firmly second mounting panel (19), second mounting panel (19) with the surface sliding connection of second installing frame (14), horizontal laser head (4) are installed on second installing frame (14).

5. A laser actinometer as claimed in claim 3, characterized in that: first mounting groove (103) have still been seted up to the top and the bottom of casing (1), first mounting groove (103) and mutual correspondence first through-hole (101) intercommunication, second mounting groove (104) have been seted up on the lateral wall of casing (1), second mounting groove (104) with first mounting groove (103) intercommunication, first through-hole (101), first mounting groove (103) and second mounting groove (104) internalization are equipped with same flexible first protection pad (20).

6. The laser actinometer as claimed in claim 5, characterized in that: the second screw rod (11) is connected with a second nut (21) in a threaded mode, a second connecting rod (22) is fixedly arranged on the second nut (21), the second connecting rod (22) penetrates through the shell (1), and the end portion of the second connecting rod (22) is fixedly connected with the first protection pad (20).

7. The laser actinometer as claimed in claim 4, characterized in that: the side surface of the shell (1) provided with the second through hole (102) is further provided with a third mounting groove (105), the third mounting groove (105) is communicated with the second through hole (102), and a second protection pad (23) is movably arranged in the third mounting groove (105) and the second through hole (102).

8. The laser actinometer as claimed in claim 7, characterized in that: third screw rod (16) are kept away from the one end of second driving motor (15) is run through second installing frame (14), just the tip of third screw rod (16) has set firmly first bevel gear (24), set firmly two fixed plates (25), two on the inside wall of having seted up second through-hole (102) on casing (1) the rotation is connected with fourth screw rod (26) between fixed plate (25), fixed cover is equipped with second bevel gear (27) on fourth screw rod (26), first bevel gear (24) with second bevel gear (27) intermeshing.

9. The laser actinometer as claimed in claim 8, characterized in that: and a fourth nut (28) is connected to the fourth screw (26) through a thread, a fourth connecting rod (29) is fixedly connected to the fourth nut (28), and the end part of the fourth connecting rod (29) is fixedly connected with the second protection pad (23).