Horizontal and elevation unlocking mechanism of photoelectric turntable type observation equipment

Abstract

The application relates to the field of photoelectric technology, in particular to a horizontal and pitching unlocking and locking mechanism of a photoelectric rotating platform type observation device. The unlocking and locking mechanism comprises a mounting shell, a guide cylinder, a guide groove, a large gear with a shaft, a locking shaft, a guide nail, a curved groove, a large hand wheel, a motor, a connecting shaft, a small gear and a small hand wheel. The inner cavity bottom of the mounting shell is provided with the guide cylinder, the large gear with the shaft is rotatably inserted into the guide cylinder, the locking shaft is movably inserted into the shaft cavity of the large gear with the shaft, the guide nail is arranged on the locking shaft, the guide nail penetrates through the curved groove and is inserted into the guide groove, the curved groove and the guide groove are respectively arranged on the large gear with the shaft and the guide cylinder, the upper end of the large gear with the shaft is detachably locked with the large hand wheel, the large hand wheel is located outside the mounting shell, and the inner cavity bottom of the mounting shell further comprises the installed motor. The application has the advantages of simple structure, high reliability, high position precision, fast reaction speed, strong universality, good waterproof performance and the like.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of optoelectronic technology, in particular to a horizontal and pitch unlocking mechanism of an optoelectronic turntable type observation device. BACKGROUND

[0002] With the continuous development of optoelectronic technology, optoelectronic turntable type observation devices are applied more and more widely, and the requirements are also higher and higher. The optoelectronic turntable type observation device mainly consists of a U-shaped frame, an azimuth turntable and a head assembly. When the optoelectronic turntable type observation device is in a non-working state, the U-shaped frame and the head assembly will shake violently with the vehicle or ship, which will cause the internal devices to be damaged. Therefore, when the optoelectronic turntable type observation device stops working, the unlocking mechanism is needed to lock the horizontal direction of the U-shaped frame and the pitch direction of the head assembly, and when it works normally, it needs to be unlocked in time.

[0003] At present, most of the existing unlocking mechanisms are pure electric or pure manual mechanisms. The pure electric unlocking mechanism cannot realize unlocking when the electric control circuit fails, which will cause the optoelectronic turntable type observation device to fail. The pure manual unlocking mechanism has low automation, inconvenient operation, slow response speed and low precision. In view of this, the present application designs an unlocking mechanism integrated with electric and manual mechanisms, which can effectively solve the above problems. SUMMARY

[0004] The purpose of the present application is to provide a horizontal and pitch unlocking mechanism of an optoelectronic turntable type observation device. The present application has the advantages of simple structure, high reliability, high position accuracy, fast response speed, strong universality, good waterproof performance and the like. Especially when the electric control circuit fails, it can be manually unlocked, which greatly improves the reliability of the optoelectronic turntable type observation device.

[0005] In order to solve the above technical problems, the application provides a horizontal and pitching unlocking and locking mechanism of an optoelectronic turntable type observation device, which comprises a mounting shell, a guide cylinder, a guide groove, a shafted large gear, a locking shaft, a guide nail, a curved groove, a large hand wheel, a motor, a connecting shaft, a small gear and a small hand wheel; the inner cavity bottom of the mounting shell is provided with the guide cylinder, the shafted large gear is movably inserted into the guide cylinder, the locking shaft is movably inserted into the shaft cavity of the shafted large gear, the guide nail is arranged on the locking shaft, the guide nail penetrates through the curved groove and is inserted into the guide groove, the curved groove and the guide groove are respectively arranged on the shafted large gear and the guide cylinder, the upper end of the shafted large gear is detachably locked with the large hand wheel, the large hand wheel is located outside the mounting shell, the inner cavity bottom of the mounting shell further comprises the motor, the output end of the motor is provided with the connecting shaft, the upper end of the connecting shaft is provided with the small gear which can slide up and down, the small gear is engaged with the shafted large gear, the top of the mounting shell is threadedly inserted with the small hand wheel, the lower end of the small hand wheel is movably inserted into the center hole of the small gear and is limited in the center hole, and the small hand wheel can drive the small gear to move up and down by rotating the small hand wheel.

[0006] Preferably, the mounting shell is composed of a base, a shell and an upper cover plate; the top of the base is provided with the shell, the top of the shell is buckled with the upper cover plate; the upper end of the shell further comprises a sealing groove one which is arranged, and a sealing ring is arranged in the sealing groove one; the guide cylinder is arranged on the base, and bearing cavities are arranged on the upper and lower ends of the guide cylinder, and the shaft body of the shafted large gear is installed in the bearing cavities through bearings one.

[0007] Preferably, the application further comprises a limiting sheet, a pressing ring one and a sealing cover; the limiting sheet is sleeved on the shaft body of the shafted large gear and is fixed through a stop screw, and the limiting sheet presses the upper bearing one; the shaft body of the shafted large gear is threadedly connected with the pressing ring one and is fixed through a stop screw, and the pressing ring one presses the inner ring of the lower bearing one, the outer ring of the lower bearing one is pressed through the sealing cover, and the sealing cover is connected with the bearing cavities of the guide cylinder through threads; the sealing cover is provided with a sealing groove two, and a sealing ring is arranged in the sealing groove two.

[0008] Preferably, the application further comprises a hand wheel shaft, the hand wheel shaft is locked on the upper end of the gear disc of the shafted large gear through a screw, the upper end of the hand wheel shaft penetrates through the center hole of the upper cover plate and is locked with the large hand wheel through a screw, a sealing groove three is arranged in the center hole of the upper cover plate, and a sealing ring is arranged in the sealing groove three.

[0009] Preferably, the upper cover plate is provided with a 90° arc-shaped limiting groove, and the large hand wheel is provided with a limiting pin; when the large hand wheel rotates, the limiting pin moves in the 90° arc-shaped limiting groove and stops moving when reaching the limit position 90°.

[0010] Preferably, the motor mounting seat is fixed on the base, the motor is fixed on the motor mounting seat through screws, the upper end of the motor mounting seat is provided with a bearing seat, one bearing two is arranged in the upper and lower center holes of the bearing seat, the connecting shaft is arranged on the bearing two, the upper end of the bearing two is pressed through the shaft shoulder of the connecting shaft, the inner ring of the lower end of the bearing two is pressed through the pressing ring two, the pressing ring two is screwed on the connecting shaft, the outer ring of the lower end of the bearing two is pressed through the pressing ring three, and the pressing ring three is screwed on the bearing seat.

[0011] Preferably, the connecting shaft is fixedly connected with the output shaft of the motor through a connecting pin, and three clamping grooves are arranged on the connecting shaft; the bottom end surface of the pinion gear is provided with three clamping blocks, the clamping blocks are inserted into the clamping grooves and can slide up and down, when the motor works, the connecting shaft can drive the pinion gear to rotate synchronously, and when the small hand wheel rotates, the axial reciprocating feeding motion of the pinion gear can be realized.

[0012] Preferably, the lower end of the small hand wheel is provided with a baffle one, the baffle one is inserted into the center hole of the pinion gear, the baffle one is movably embedded in the upper end hole of the pinion gear, the bottom end surface of the small shaft of the small hand wheel is locked by a baffle two through screws, and the baffle two is movably embedded in the lower end hole of the pinion gear; when the small hand wheel rotates counterclockwise, the baffle two drives the pinion gear to move upward; when the small hand wheel rotates clockwise, the baffle one drives the pinion gear to move downward.

[0013] Preferably, the shell is provided with a photoelectric switch one and a photoelectric switch two matched with the limiting piece, and the photoelectric switch one and the photoelectric switch two are distributed at an angle of 90°.

[0014] Preferably, the unlocking mechanism is arranged in the bottom inner cavity and the side wall inner cavity of the U-shaped frame of the photoelectric turntable type observation equipment respectively, and lock holes are arranged on the azimuth turntable and the head assembly respectively, the locking shaft is extended and retracted to be inserted into and separated from the lock hole, and the U-shaped frame in the horizontal direction and the head assembly in the pitch direction can be locked and unlocked.

[0015] Compared with the prior art, the present application has the following advantages:

[0016] 1) High reliability:

[0017] When the electric control or circuit fails to complete the unlocking, the unlocking function can be completed manually, and the reliability of the photoelectric turntable equipment is greatly improved.

[0018] 2) fast reaction speed:

[0019] The unlocking mechanism of the present application utilizes a motor to drive a gear, and converts the rotary motion into linear motion through a curved slot, so that the unlocking speed is fast.

[0020] 3) high position accuracy:

[0021] The unlocking mechanism of the present application adopts an optical switch for limiting position, and when the limiting sheet reaches the limiting switch, the motor stops working immediately, so that the unlocking position is accurate.

[0022] 4) good waterproof performance:

[0023] The unlocking mechanism of the present application adopts a closed structure and is provided with three sealing rings, so that the waterproof performance is good.

[0024] 5) strong versatility:

[0025] The unlocking mechanism of the present application can be applied to the unlocking of the horizontal direction of the U-shaped frame, and after the installation surface is rotated by 90°, it can be applied to the unlocking of the head assembly in the pitch direction. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 The present application provides a cross-sectional view of a photoelectric turntable.

[0027] Figure 2 The present application provides a three-dimensional schematic view of the unlocking mechanism.

[0028] Figure 3 The present application provides a three-dimensional schematic view of the unlocking mechanism Figure 1 .

[0029] Figure 4 The present application provides a three-dimensional schematic view of the unlocking mechanism Figure 2 .

[0030] Figure 5 The present application provides a cross-sectional view of the unlocking mechanism.

[0031] Figure 6 The present application provides a three-dimensional schematic view of a large gear with shaft.

[0032] Figure 7 The present application provides a three-dimensional schematic view of a base.

[0033] Figure 8 The present application provides a three-dimensional schematic view of an upper cover plate.

[0034] Figure 9A pinion gear three-dimensional schematic diagram provided by the present application.

[0035] Figure 10 A connecting shaft three-dimensional schematic diagram provided by the present application.

[0036] In the figure: 1- installation shell, 101- base, 102- casing, 103- upper cover plate, 104- sealing groove one, 105- bearing one, 106- sealing groove three, 2- guide cylinder, 3- guide groove, 4- belt shaft gear, 5- locking shaft, 6- guide nail, 7- curve groove, 8- large hand wheel, 9- motor, 10- connecting shaft, 11- pinion, 12- small hand wheel, 13- limit piece, 14- pressure ring one, 15- sealing cover, 151- sealing groove two, 16- hand wheel shaft, 17- 90° arc limit groove, 18- limit nail, 19- motor mounting seat, 20- bearing seat, 21- bearing two, 22- pressure ring two, 23- pressure ring three, 24- connecting pin, 25- clamping groove, 26- clamping block, 27- baffle one, 28- baffle two, 29- photoelectric switch one, 30- photoelectric switch two; 100- head assembly, 200- U-shaped frame, 300- azimuth turntable, 400- unlocking and locking mechanism. DETAILED DESCRIPTION

[0037] The present application is further described below in conjunction with the accompanying drawings and specific embodiments. According to the following description, the advantages and features of the present application will be more apparent. It should be noted that the drawings are all very simplified and use non-precise proportions, only for the purpose of facilitating and clearly assisting the description of the embodiments of the present application.

[0038] As Figures 1-10As shown, the embodiment of the present application specifically provides a horizontal and pitch unlocking and locking mechanism of an optoelectronic turntable type observation device, which comprises a mounting shell 1, a guide cylinder 2, a guide groove 3, a shafted large gear 4, a locking shaft 5, a guide nail 6, a curved groove 7, a large hand wheel 8, a motor 9, a connecting shaft 10, a pinion 11 and a small hand wheel 12; the inner cavity bottom of the mounting shell 1 is provided with the guide cylinder 2, the shafted large gear 4 is rotatably inserted into the guide cylinder 2, the locking shaft 5 is movably inserted into the shaft cavity of the shafted large gear 4, the guide nail 6 is arranged on the locking shaft 5, the guide nail 6 penetrates through the curved groove 7 and is inserted into the guide groove 3, the curved groove 7 and the guide groove 3 are respectively arranged on the shafted large gear 4 and the guide cylinder 2, so that the locking shaft 5 can move up and down when the shafted large gear 4 rotates, the upper end of the shafted large gear 4 is detachably locked with the large hand wheel 8, and the large hand wheel 8 is located outside the mounting shell 1, the inner cavity bottom of the mounting shell 1 further comprises the installed motor 9, the output end of the motor 9 is provided with the connecting shaft 10, the upper end of the connecting shaft 10 is provided with the pinion 11 which can slide up and down, the pinion 11 is engaged with the shafted large gear 4, the top of the mounting shell 1 is threadedly inserted with the small hand wheel 12, the lower end of the small hand wheel 12 is movably inserted into the center hole of the pinion 11, and the small hand wheel 12 can drive the pinion 11 to move up and down by rotating the small hand wheel 12.

[0039] The mounting shell 1 is composed of a base 101, a shell 102 and an upper cover plate 103; the top of the base 101 is provided with the shell 102, the top of the shell 102 is buckled with the upper cover plate 103, and the shell 102 and the upper cover plate 103 can play a protective and sealing role after being installed in cooperation; the upper end of the shell 102 further comprises a sealing groove one 104, and a sealing ring is installed in the sealing groove one 104 to improve the sealing performance; the base 101 is provided with the guide cylinder 2, and the upper and lower ends of the guide cylinder 2 both comprise bearing cavities, and the bearing cavities are installed with the shaft body of the shafted large gear 4 through a bearing one 105.

[0040] Further comprising a limiting piece 13, a pressing ring one 14 and a sealing cover 15; the limiting piece 13 is sleeved on the shaft body of the shafted large gear 4 and is fixed through a stop screw, and the limiting piece 13 presses the upper bearing one 105; the shaft body of the shafted large gear 4 is threadedly connected with the pressing ring one 14 and is fixed through a stop screw, and the pressing ring one 14 presses the inner ring of the lower bearing one 105, the outer ring of the lower bearing one 105 is pressed through the sealing cover 15, and the sealing cover 15 is connected with the bearing cavity of the guide cylinder 2 through threads; the sealing cover 15 is provided with a sealing groove two 151, and a sealing ring is installed in the sealing groove two 151 to improve the sealing performance.

[0041] Also includes hand wheel shaft 16, with the toothed disc of the shaft gear 4 through the screw locking hand wheel shaft 16, the upper end of the hand wheel shaft 16 passes through the center hole of the upper cover plate 103 and is locked with the large hand wheel 8 through the screw, and the center hole of the upper cover plate 103 is provided with a sealing groove three 106, and a sealing ring is installed in the sealing groove three 106, which can improve the sealing performance.

[0042] The upper cover plate 103 is provided with a 90° arc limiting groove 17, and the large hand wheel 8 is provided with a limiting pin 18; when the large hand wheel 8 rotates, the limiting pin 18 moves in the 90° arc limiting groove 17, and stops moving when reaching the limit position 90°.

[0043] Also includes motor mounting seat 19, the motor mounting seat 19 is fixed on the base 101, and the motor 9 is fixed on the motor mounting seat 19 through the screw; the upper end of the motor mounting seat 19 is provided with a bearing seat 20, and one bearing two 21 is installed in the upper and lower center circular holes of the bearing seat 20, respectively, and the bearing two 21 is installed on the connecting shaft 10, the upper end bearing two 21 is pressed through the shaft shoulder of the connecting shaft 10, the inner ring of the lower end bearing two 21 is pressed through the pressing ring two 22, the pressing ring two 22 is installed on the connecting shaft 10 through the screw, the outer ring of the lower end bearing two 21 is pressed through the pressing ring three 23, and the pressing ring three 23 is installed on the bearing seat 20 through the screw.

[0044] The connecting shaft 10 is fixedly connected with the output shaft of the motor 9 through the connecting pin 24, and three clamping grooves 25 are formed in the connecting shaft 10; the bottom end surface of the pinion 11 is provided with three clamping blocks 26, the clamping blocks 26 are inserted into the clamping grooves 25 and can slide up and down, when the motor 9 works, the connecting shaft 10 can drive the pinion 11 to rotate synchronously, when the small hand wheel 12 rotates, the axial reciprocating feeding motion of the pinion 11 can be realized.

[0045] The lower end shaft of the small hand wheel 12 is provided with a baffle one 27, which is inserted into the center hole of the pinion 11, and the baffle one 27 is movably embedded in the upper end circular hole of the pinion 11, the bottom end surface of the small shaft of the small hand wheel 12 is locked with the baffle two 28 through the screw, and the baffle two 28 is movably embedded in the lower end circular hole of the pinion 11; when the small hand wheel 12 rotates counterclockwise, the baffle two 28 drives the pinion 11 to move upward; when the small hand wheel 12 rotates clockwise, the baffle one 27 drives the pinion 11 to move downward.

[0046] Also includes the photoelectric switch one 29 and the photoelectric switch two 30 installed on the shell 102 and matched with the limiting piece 13, and the photoelectric switch one 29 and the photoelectric switch two 30 are distributed at 90°, through the setting of the photoelectric switch one 29 and the photoelectric switch two 30, the start-stop control of the motor 9 can be realized.

[0047] The unlocking and locking mechanism 400 is respectively installed on the bottom inner cavity and the side wall inner cavity of the U-shaped frame 200 of the photoelectric turntable type observation equipment, and the azimuth turntable 300 and the head assembly 100 are respectively provided with a locking hole corresponding thereto, and the locking and unlocking of the U-shaped frame 200 in the horizontal direction and the head assembly 100 in the pitching direction can be realized by the extension and retraction of the locking shaft 5 to insert and separate from the locking hole.

[0048] The specific implementation process of the present application is as follows:

[0049] The unlocking and locking mechanism 400 is divided into automatic mode and manual mode during specific implementation, and under normal circumstances, the unlocking and locking mechanism 400 is in automatic mode, and when the equipment has a fault in the electric control circuit, the manual mode can be used to complete the unlocking and locking. When the unlocking and locking mechanism 400 needs to be locked, the motor 9 drives the connecting shaft 10 to drive the pinion 11 to rotate, the pinion 11 drives the belt shaft gear 4 to rotate, the curved groove 7 of the belt shaft gear 4 drives the guide nail 6 to move linearly, thereby driving the locking shaft 5 to move linearly; at the same time, the limiting sheet 13 rotates with the belt shaft gear 4, and in the rotating process, the limiting sheet 13 is turned out from the photoelectric switch two 30 and enters the photoelectric switch one 29, and the motor 9 stops rotating, at this time, the locking shaft 5 extends, and the locking is completed. If unlocking is required, the above-mentioned action is reversed.

[0050] When the equipment has a fault in the electric control circuit or cannot be powered, manual unlocking and locking can be performed. When unlocking is required, the pinion 11 and the belt shaft gear 4 need to be disengaged first to release the self-locking of the motor 9. The small hand wheel 12 is counterclockwise rotated, the baffle two 28 drives the pinion 11 to move upward, the clamping block 26 on the pinion 11 slides upward in the clamping groove 25 on the connecting shaft 10, when the upper end of the pinion 11 contacts the upper cover plate 103, the pinion 11 and the belt shaft gear 4 are just disengaged, at this time, the pinion 11 is stopped rotating, and at the same time, the clamping block 26 on the pinion 11 does not completely slide out of the clamping groove 25 on the connecting shaft 10. Then the large hand wheel 8 is counterclockwise rotated by 90°, and stopped rotating after reaching the limit, and the manual unlocking is completed. If locking is required, the large hand wheel 8 is counterclockwise rotated by 90°, and the manual mode is switched to the automatic mode when required. The small hand wheel 12 is clockwise rotated, the baffle one 27 drives the pinion 11 to move downward, the clamping block 26 on the pinion 11 slides downward in the clamping groove 25 on the connecting shaft 10, and when the clamping block 26 reaches the bottom of the clamping groove 25, the pinion 11 is stopped rotating, and at this time, the mode switching is completed.

[0051] The above description is only a description of the preferred embodiment of the present application, and does not limit the scope of the present application, and any modification and modification of the present application by the person skilled in the art according to the above disclosure is within the protection scope of the claims.

Claims

1. A horizontal and elevation unblocking mechanism of an opto-electrical turnstile type viewing device, characterized in that, The unlocking mechanism (400) comprises: a mounting shell (1), a guide cylinder (2), a guide groove (3), a shaft gear (4), a locking shaft (5), a guide pin (6), a curved groove (7), a large hand wheel (8), a motor (9), a connecting shaft (10), a pinion (11) and a small hand wheel (12); the inner cavity bottom of the mounting shell (1) is provided with the guide cylinder (2), the shaft gear (4) is rotatably inserted into the guide cylinder (2), the locking shaft (5) is movably inserted into the shaft cavity of the shaft gear (4), the guide pin (6) is arranged on the locking shaft (5), the guide pin (6) passes through the curved groove (7) and is inserted into the guide groove (3), the curved groove (7) and the guide groove (3) are respectively arranged on the shaft gear (4) and the guide cylinder (2), the upper end of the shaft gear (4) is detachably locked with the large hand wheel (8), and the large hand wheel (8) is located outside the mounting shell (1), the inner cavity bottom of the mounting shell (1) further comprises the motor (9), the output end of the motor (9) is provided with the connecting shaft (10), the upper end of the connecting shaft (10) is provided with the pinion (11) which can slide up and down, the pinion (11) is engaged with the shaft gear (4), the top of the mounting shell (1) is threadedly inserted with the small hand wheel (12), the lower end of the small hand wheel (12) is movably inserted into the center hole of the pinion (11) and is limited therein, and the small hand wheel (12) can drive the pinion (11) to move up and down by rotating the small hand wheel (12). The connecting shaft (10) is fixedly connected with the output shaft of the motor (9) through a connecting pin (24), and three clamping grooves (25) are formed in the connecting shaft (10); three clamping blocks (26) are arranged on the bottom end surface of the pinion (11), the clamping blocks (26) are inserted into the clamping grooves (25) and can slide up and down, when the motor (9) works, the connecting shaft (10) can drive the pinion (11) to rotate synchronously, and when the small hand wheel (12) is rotated, the axial reciprocating feeding motion of the pinion (11) can be realized. A baffle one (27) is sleeved on the lower end shaft of the small hand wheel (12) and is inserted into the center hole of the pinion (11), the baffle one (27) is movably embedded in the upper end hole of the pinion (11), and a baffle two (28) is locked on the bottom end surface of the shaft of the small hand wheel (12) through a screw, and the baffle two (28) is movably embedded in the lower end hole of the pinion (11). When the small hand wheel (12) is counterclockwise rotated, the baffle two (28) drives the pinion (11) to move upward, and when the small hand wheel (12) is clockwise rotated, the baffle one (27) drives the pinion (11) to move downward.

2. A horizontal and elevation unblocking mechanism for an opto-electronic turret viewing device as claimed in claim 1, characterized in that, The mounting shell (1) is composed of a base (101), a shell (102) and an upper cover plate (103); the top of the base (101) is provided with the shell (102), the top of the shell (102) is buckled with the upper cover plate (103); the upper end of the shell (102) further comprises a sealed groove (104) opened, and a sealing ring is installed in the sealed groove (104); the base (101) is provided with the guide cylinder (2), and the upper and lower ends of the guide cylinder (2) each comprise a bearing cavity opened, and the bearing cavity is installed with the shaft body of the shafted gear (4) through a bearing (105).

3. A horizontal and elevation unblocking mechanism for an opto-electronic turntable type viewing apparatus as claimed in claim 2, characterized in that, It also includes a limiting piece (13), a pressing ring (14) and a sealing cover (15); the limiting piece (13) is sleeved on the shaft body of the shafted gear (4) and is fixed by a stop screw, and at the same time, the limiting piece (13) presses the upper bearing (105); the shaft body of the shafted gear (4) is threadedly connected with the pressing ring (14), and is fixed by a stop screw, and at the same time, the pressing ring (14) presses the inner ring of the lower bearing (105), the outer ring of the lower bearing (105) is pressed by the sealing cover (15), and the sealing cover (15) is connected with the bearing cavity of the guide cylinder (2) by threads; the sealing cover (15) is provided with a sealing groove (151) opened, and a sealing ring is installed in the sealing groove (151).

4. A horizontal and elevation unblocking mechanism for an opto-electronic turntable type viewing apparatus as claimed in claim 2, characterized in that, It also includes a hand wheel shaft (16), the toothed disc upper end of the shafted gear (4) is locked with the hand wheel shaft (16) by a screw, the upper end of the hand wheel shaft (16) penetrates the center hole of the upper cover plate (103) and is locked with the large hand wheel (8) by a screw, and the center hole of the upper cover plate (103) is provided with a sealing groove (106) opened, and a sealing ring is installed in the sealing groove (106).

5. A horizontal and elevation unlocking mechanism for an opto-electronic turntable type viewing apparatus as claimed in claim 2, characterized in that, The upper cover plate (103) is provided with a 90° arc-shaped limiting groove (17), and the large hand wheel (8) is provided with a limiting pin (18); when the large hand wheel (8) rotates, the limiting pin (18) moves in the 90° arc-shaped limiting groove (17), and stops moving when reaching the limit position 90°.

6. A horizontal and elevation unlocking mechanism for an opto-electronic turntable type viewing apparatus as claimed in claim 2, characterized in that, It also includes a motor mounting seat (19), the motor mounting seat (19) is fixed on the base (101), and the motor (9) is fixed on the motor mounting seat (19) by a screw; the upper end of the motor mounting seat (19) is provided with a bearing seat (20), one bearing (21) is installed in the center circular hole of the upper and lower ends of the bearing seat (20), the connecting shaft (10) is installed on the bearing (21), the upper end of the bearing (21) is pressed by the shaft shoulder of the connecting shaft (10), the inner ring of the lower end of the bearing (21) is pressed by a pressing ring (22), the pressing ring (22) is installed on the connecting shaft (10) by threads, the outer ring of the lower end of the bearing (21) is pressed by a pressing ring (23), and the pressing ring (23) is installed on the bearing seat (20) by threads.

7. A horizontal and elevation unlocking mechanism of an opto-electronic turntable type viewing apparatus according to claim 3, wherein Also included are photoelectric switch one (29) and photoelectric switch two (30) installed on the shell (102) and matched with the limiting sheet (13), and the photoelectric switch one (29) and the photoelectric switch two (30) are distributed at 90°.

8. A horizontal and elevation unlocking mechanism of an opto-electronic turntable type viewing apparatus according to any one of claims 1 to 7, characterized in that, The unlocking mechanism (400) is respectively installed on the bottom inner cavity and the side wall inner cavity of the U-shaped frame (200) of the photoelectric turntable type observation equipment, and the azimuth turntable (300) and the head assembly (100) are respectively provided with a lock hole, and the locking shaft (5) is extended and retracted, so that it is inserted into and separated from the lock hole, and the U-shaped frame (200) in the horizontal direction and the head assembly (100) in the pitch direction can be locked and unlocked.

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