CN114508680A

CN114508680A - Medical image projection equipment

Info

Publication number: CN114508680A
Application number: CN202111582942.1A
Authority: CN
Inventors: 丁玲
Original assignee: Jiangsu Aikesi Medical Equipment Co ltd
Current assignee: Jiangsu Aikesi Medical Equipment Co ltd
Priority date: 2021-12-22
Filing date: 2021-12-22
Publication date: 2022-05-17

Abstract

The invention discloses medical image projection equipment which comprises a chassis, a protection box, a control cabinet, a circuit main board, a central processing unit, an Internet of things module, a PLC (programmable logic controller), a ship-shaped switch, a rocker, a supporting, adjusting and moving and stabilizing base structure, a multi-direction adjusting and stabilizing arm structure, a projector body, a laser driver, a laser receiver, a laser transmitter, a lens and a camera, wherein the protection box is installed at the middle part of the upper surface of the chassis through a bolt, and the control cabinet is installed at the right side of the upper surface of the chassis through a bolt; the circuit main board is embedded at the upper side in the control cabinet, and the front surface of the circuit main board is electrically connected with the central processing unit, the Internet of things module and the PLC; the ship-shaped switch and the rocker are electrically connected to the right side and the left side of the upper portion of the circuit main board. The invention has the beneficial effects that: through the setting of multi-direction regulation steady arm structure, be convenient for carry out rotation regulation or the regulation of angle slope to make the accurate face of projector body use the projection curtain.

Description

Medical image projection equipment

Technical Field

The invention belongs to the technical field of medical projection, and particularly relates to medical image projection equipment.

Background

Images, which are the reproduction of substances perceived by a human being to a vision, can be acquired by optical equipment, such as a camera, a mirror, a telescope, a microscope and the like; also can artificial creation, when the medical treatment, generally can carry out supplementary teaching or other work through the image projection to do benefit to work efficiency and effect.

However, the conventional medical image projection apparatus has problems that it is inconvenient to stably adjust and support, to move and to automatically adjust a projection position for calibration.

Therefore, it is necessary to provide a medical image projection apparatus.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: the utility model provides a medical image projection equipment to solve current medical image projection equipment and be not convenient for stable regulation and support, be not convenient for adjust and remove and be not convenient for automatically regulated projection position carries out the problem of calibration use.

In order to solve the technical problems, the invention adopts the technical scheme that: a medical image projection device comprises a chassis, a protection box, a control cabinet, a circuit board, a central processing unit, an Internet of things module, a PLC, a ship-shaped switch, a rocker, a supporting, adjusting and moving and stabilizing base structure, a multi-direction adjusting and stabilizing arm structure, a projector body, a laser driver, a laser receiver, a laser transmitter, a lens and a camera, wherein the protection box is installed on the middle part of the upper surface of the chassis through a bolt, and the control cabinet is installed on the right side of the upper surface of the chassis through a bolt; the circuit main board is embedded at the upper side in the control cabinet, and the front surface of the circuit main board is electrically connected with the central processing unit, the Internet of things module and the PLC; the ship-shaped switch and the rocker are electrically connected to the right side and the left side of the upper part of the circuit mainboard; the supporting, adjusting, moving and stabilizing foundation base structure is arranged around the lower end of the chassis; the multi-direction adjusting and stabilizing arm structure is arranged between the protection box and the projector body; the laser driver, the laser receiver and the laser transmitter are mounted in the projector body by bolts; the lens is integrally arranged at the left end of the projector body; the camera bolt is arranged on the left side of the lower end of the projector body; the supporting, adjusting and moving stable foundation base structure comprises an internal thread cylinder, a stable screw rod, an anti-skidding sucker, a dismounting cylinder, a cross rod and a moving movable arm structure, wherein the internal thread cylinder is supported at the lower part of the inner side of the moving movable arm structure; the stabilizing screw is in threaded connection with the inner part of the internal thread cylinder, an anti-skid sucker is movably embedded at one end of the stabilizing screw, and the other end of the stabilizing screw is in threaded connection with the disassembling cylinder; the cross rod bolt is arranged at the upper end of the dismounting cylinder.

Preferably, the movable arm structure comprises a rotating head, a cross rod, a vertical rod, an inclined arm, a movable groove and a movable wheel, wherein the cross rod is welded at the right end of the rotating head, and the lower end of the cross rod is connected with the vertical rod in a threaded manner; the inclined arm is axially connected to the lower part of the inner side of the rotating head; the movable groove is formed in the right lower side of the inclined arm, and an internal thread cylinder is further mounted on the right lower portion of the inclined arm through a bolt and a nut; the moving wheel is connected to the right lower part of the rear wall of the inclined arm.

Preferably, the multi-direction adjusting and stabilizing arm structure comprises a support arm, a first speed reducer, a first stepping motor, a positioning seat, a rotating disc, a second speed reducer, a second stepping motor and an extension arm structure, wherein the lower end of the support arm is connected to the rear end of the positioning seat in a shaft mode, and the first speed reducer is installed on the front end of the positioning seat and the upper portion of the front end of the support arm through bolts; the first stepping motor is mounted at the front end of the first speed reducer through a bolt; the positioning seat bolt is arranged at the upper end of the rotating disc, and the rotating disc is movably embedded at the upper side in the protection box; the second speed reducer is mounted on the inner wall of the protection box through bolts, and the upper end of the second speed reducer is in shaft connection with the lower end of the rotating disc; the second stepping motor is mounted on the right side of the front end of the second speed reducer through a bolt; the extension arm structure is arranged at the upper part of the rear end of the support arm.

Preferably, the extension arm structure comprises a left positioning arm, a telescopic column, a limiting strip, a positioning bolt, a penetration frame and a right wrapping arm, wherein the telescopic column is welded at the right end of the left positioning arm, and the limiting strip is welded around the outer wall of the telescopic column; the positioning bolts are in threaded connection with the upper side and the lower side of the front surface and the rear surface of the penetrating frame; the outer side of the left surface of the right wrapping arm is welded with a penetration frame, and the middle part inside the right wrapping arm is inserted with a telescopic column and a limiting strip; and a first speed reducer is mounted on a left bolt at the front end of the right wrapping arm.

Compared with the prior art, the invention has the beneficial effects that:

1. according to the invention, the arrangement of the internal thread cylinder, the inclined arm and the movable groove can drive the stabilizing screw to realize an angle, so that the movable wheel at the lower end of the inclined arm can be conveniently accommodated and contacted with the ground.

2. According to the invention, the arrangement of the internal thread cylinder, the stabilizing screw and the cross rod facilitates manual operation to realize up-and-down movable adjustment.

3. In the invention, the anti-skid sucker is arranged, so that the chassis is conveniently supported by matching with the stable screw rod and is properly adjusted in height for use.

4. According to the invention, the arrangement of the rotating head, the cross rod, the vertical rod and the inclined arm can support the chassis for use.

5. In the invention, the arrangement of the inclined arm and the moving wheel is convenient for moving, carrying and using.

6. In the invention, the arrangement of the support arm, the positioning seat and the right wrapping arm is convenient for rotation adjustment or angle inclination adjustment, so that the projector body can be accurately used facing the projection curtain.

7. In the invention, the arrangement of the first speed reducer and the first stepping motor drives the support arm and the right wrapping arm to be movably used.

8. In the invention, the positioning seat is driven to rotate for use by the arrangement of the rotating disc, the second speed reducer and the second stepping motor.

9. According to the invention, the arrangement of the left positioning arm, the telescopic column, the limiting strip and the right wrapping arm can realize the adjustment of the length for use.

10. In the invention, the movable telescopic column can be fixedly used by the arrangement of the inserting frame and the positioning bolt.

Drawings

Fig. 1 is a schematic structural view of the present invention.

Fig. 2 is a schematic structural view of the support adjustment movement stabilization foundation structure of the present invention.

Fig. 3 is a schematic structural view of the movable arm structure of the present invention.

Fig. 4 is a schematic structural view of the multi-directional adjustment stabilizer arm structure of the present invention.

Fig. 5 is a schematic structural view of an extension arm structure of the present invention.

Fig. 6 is an electrical logic schematic of the present invention.

In fig. 1 to 6:

1. a chassis; 2. a protection box; 3. a control cabinet; 4. a circuit main board; 5. a central processing unit; 6. an Internet of things module; 7. a PLC; 8. a boat-shaped switch; 9. a rocker; 10. supporting, adjusting, moving and stabilizing the foundation base structure; 101. an internal threaded barrel; 102. stabilizing the screw rod; 103. an anti-slip sucker; 104. disassembling the cylinder; 105. a cross bar; 106. moving the movable arm structure; 1061. rotating the head; 1062. a cross bar; 1063. a vertical rod; 1064. a tilt arm; 1065. a movable groove; 1066. a moving wheel; 11. a multi-directional adjustment stabilizing arm structure; 111. a support arm; 112. a first decelerator; 113. a first stepper motor; 114. positioning seats; 115. rotating the disc; 116. a second decelerator; 117. a second stepping motor; 118. an extension arm structure; 1181. a left positioning arm; 1182. a telescopic column; 1183. a restriction strip; 1184. positioning the bolt; 1185. inserting the frame; 1186. a right wrap arm; 12. a projector body; 13. a laser driver; 14. a laser receiver; 15. a laser transmitter; 16. a lens; 17. a camera is provided.

Detailed Description

The invention is further described below with reference to the accompanying drawings:

as shown in fig. 1, the medical image projection apparatus according to the present invention includes a chassis 1, a protection box 2, a control cabinet 3, a circuit board 4, a central processing unit 5, an internet of things module 6, a PLC7, a ship-shaped switch 8, a rocker 9, a supporting, adjusting, moving, and stabilizing base structure 10, a multi-directional adjusting and stabilizing arm structure 11, a projector body 12, a laser driver 13, a laser receiver 14, a laser emitter 15, a lens 16, and a camera 17, wherein the protection box 2 is mounted on a bolt at the middle portion of the upper surface of the chassis 1, and the control cabinet 3 is mounted on a bolt at the right side of the upper surface of the chassis 1; the circuit main board 4 is embedded at the upper side inside the control cabinet 3, and the front surface of the circuit main board 4 is electrically connected with the central processing unit 5, the internet of things module 6 and the PLC 7; the ship-shaped switch 8 and the rocker 9 are both electrically connected to the right side and the left side of the upper part of the circuit main board 4; the supporting, adjusting, moving and stabilizing foundation base structure 10 is arranged around the lower end of the chassis 1; the multi-direction adjusting and stabilizing arm structure 11 is arranged between the protection box 2 and the projector body 12; the projector body 12 is internally provided with a laser driver 13, a laser receiver 14 and a laser transmitter 15 by bolts; the lens 16 is integrally arranged at the left end of the projector body 12; the camera 17 is mounted on the left side of the lower end of the projector body 12 by bolts.

In the above embodiment, as shown in fig. 2, specifically, the supporting, adjusting and moving-stabilizing base structure 10 includes an internal thread cylinder 101, a stabilizing screw 102, an anti-slip suction cup 103, a detaching cylinder 104, a cross bar 105 and a moving movable arm structure 106, wherein the internal thread cylinder 101 is supported at the lower part of the inner side of the moving movable arm structure 106; the movable internal thread cylinder 101 is erected and supported by an anti-skid sucker 103, and is fixed by screwing a bolt and a nut at the front end of the internal thread cylinder 101; the stabilizing screw rod 102 is in threaded connection with the inside of the internal thread cylinder 101, an anti-skid sucker 103 is movably embedded at one end of the stabilizing screw rod 102, and the other end of the stabilizing screw rod 102 is in threaded connection with the disassembling cylinder 104; the rotating cross rod 105 is matched with the dismounting cylinder 104 to drive the stabilizing screw 102 to rotate in the inner thread cylinder 101, so that the chassis 1 is lifted and stably supported; the cross bar 105 is bolted to the upper end of the dismounting cylinder 104.

As shown in fig. 3, in the above embodiment, specifically, the movable arm structure 106 includes a rotating head 1061, a cross bar 1062, a vertical bar 1063, an inclined arm 1064, a movable groove 1065 and a movable wheel 1066, the cross bar 1062 is welded to the right end of the rotating head 1061, and then the vertical bar 1063 is connected to the lower end of the cross bar 1062 through a thread; the inclined arm 1064 is coupled to the lower portion of the inner side of the rotating head 1061; the movable groove 1065 is arranged at the lower right side of the inclined arm 1064, and the bolt and nut at the lower right part of the inclined arm 1064 is provided with the internal thread cylinder 101; the protection box 2 is pushed to move through a moving wheel 1066 at the lower end of the inclined arm 1064; the moving wheel 1066 is coupled to the lower right portion of the rear wall of the tilting arm 1064.

As shown in fig. 4, in the above embodiment, specifically, the multi-directional adjustment stabilizing arm structure 11 includes a supporting arm 111, a first speed reducer 112, a first stepping motor 113, a positioning seat 114, a rotating disc 115, a second speed reducer 116, a second stepping motor 117 and an extension arm structure 118, the lower end of the supporting arm 111 is coupled to the rear end of the positioning seat 114, and the first speed reducer 112 is mounted on the front end of the positioning seat 114 and the upper portion of the front end of the supporting arm 111 by bolts; the operating rocker 9 drives the second stepping motor 117 and the first reducer 112 and cooperates with the second reducer 116 and the first reducer 112 to rotate the positioning seat 114 and the rotating disc 115; the first stepping motor 113 is mounted at the front end of the first reducer 112 through bolts; the positioning seat 114 is mounted at the upper end of the rotating disc 115 through bolts, and the rotating disc 115 is movably embedded at the upper side inside the protection box 2; the second speed reducer 116 is mounted on the inner wall of the protection box 2 through bolts, and the upper end of the second speed reducer 116 is coupled to the lower end of the rotating disc 115; the second stepping motor 117 is bolted to the right side of the front end of the second reducer 116; the extension arm structure 118 is mounted on the upper portion of the rear end of the arm 111.

As shown in fig. 5, in the foregoing embodiment, specifically, the extension arm structure 118 includes a left positioning arm 1181, a telescopic column 1182, a limiting strip 1183, a positioning bolt 1184, a penetrating frame 1185 and a right wrapping arm 1186, the telescopic column 1182 is welded to the right end of the left positioning arm 1181, and the limiting strips 1183 are welded to the periphery of the outer wall of the telescopic column 1182; sliding the left positioning arm 1181 causes the telescoping post 1182 and the restraining bar 1183 to move within the right wrap arm 1186; the positioning bolts 1184 are in threaded connection with the upper side and the lower side of the front surface and the rear surface of the penetrating frame 1185; the penetrating frame 1185 is welded on the outer side of the left surface of the right wrapping arm 1186, and the middle part inside the right wrapping arm 1186 is inserted with the telescopic column 1182 and the limiting strip 1183; the positioning bolt 1184 is screwed down to fix the telescopic column 1182 to complete assembly and adjustment; the first reducer 112 is mounted on the left bolt at the front end of the right wrapping arm 1186.

In the above embodiment, specifically, the internally threaded cylinder 101 is inserted into the movable slot 1065, and the bolt at the front end of the internally threaded cylinder 101 passes through the lower portion of the front end of the inclined arm 1064 and is fixed by a nut.

In the above embodiment, specifically, an inverted T-shaped groove is formed in the upper side of the inside of the anti-slip sucker 103 at the lower end of the stabilizing screw 102, and a circular steel disc is welded at the lower end of the stabilizing screw 102.

In the above embodiment, specifically, the lower end of the vertical rod 1063 at the lower end of the cross rod 1062 abuts against the upper end of the inclined arm 1064, and the rear end of the inclined arm 1064 movably supports the moving wheel 1066.

In the above embodiment, specifically, the rotating head 1061 is installed around the lower end of the chassis 1 by bolts, and a groove is formed in the lower side of the inside of the rotating head 1061, so that the groove movably supports the inclined arm 1064.

In the above embodiment, specifically, the positioning seat 114 and the rotating disc 115 are assembled to form an inverted T shape, and the rotating disc 115 is driven to rotate by the second speed reducer 116 matching with the second stepping motor 117.

In the above embodiment, specifically, the lower portion of the front end of the supporting arm 111 is coupled to the positioning seat 114, the upper portion of the rear end is coupled to the right wrapping arm 1186, the rear end of the left positioning arm 1181 is coupled to the right side of the front end of the projector body 12, and the shaft of the rear end of the first speed reducer 112 is connected to the supporting arm 111, the right wrapping arm 1186 and the shaft inside key on the projector body 12.

In the above embodiment, specifically, the telescopic column 1182 at the right end of the left positioning arm 1181 is assembled in a cross shape in cooperation with the limiting bar 1183, and the telescopic column 1182 and the limiting bar 1183 are both adapted to the right wrapping arm 1186.

In the above embodiment, specifically, a cross-shaped groove is formed inside the right wrapping arm 1186, and the penetrating frame 1185 at the left end of the right wrapping arm 1186 fixes the telescopic column 1182 through the positioning bolt 1184.

In the above embodiment, the central controller 5 is a central processor model ES7314-6EH04-0AB 0.

In the above embodiment, specifically, the model of the internet of things module 6 is an LC3002 type internet of things module.

In the above embodiment, specifically, the PLC7 is a PLC of model FX 2N-48.

In the above embodiment, specifically, the rocker 9 is a YJ600 type rocker.

In the above embodiment, specifically, the camera 17 is a RL-11A camera.

In the above embodiment, specifically, the first stepper motor 113 is a 57BYGH5330 stepper motor.

In the above embodiment, specifically, the second stepper motor 117 is a 57BYGH5330 stepper motor.

In the above embodiment, specifically, the ship-shaped switch 8 is electrically connected to the PLC7, the rocker 9 is electrically connected to the PLC7, the central controller 5 is electrically connected to the PLC7, the first stepping motor 113 is electrically connected to the PLC7, the second stepping motor 117 is electrically connected to the PLC7, the central controller 5 is electrically connected to the internet of things module 6, and the central processor 5 is electrically connected to the camera 17.

Principle of operation

The working principle of the invention is as follows: in the process of carrying and supporting, the protection box 2 is pushed to move through a moving wheel 1066 at the lower end of an inclined arm 1064, after the protection box reaches a proper position, the movable internal thread cylinder 101 is erected and supported through an anti-skid sucker 103, then the cross rod 105 is rotated to be matched with the dismounting cylinder 104 to drive the stabilizing screw 102 to rotate in the internal thread cylinder 101 so as to realize the lifting of the chassis 1 for stabilizing and supporting, in the using process, the circuit main board 4 is matched with the internet of things module 6 to be connected with a computer, then the projector body 12 is connected with the computer, the rocker 9 is operated to drive the second stepping motor 117 and the first speed reducer 112 and matched with the second speed reducer 116 and the first speed reducer 112 to rotate the positioning seat 114 and the rotating disc 115, the support arm 111, the left positioning arm 1181, the right wrapping arm 1186 and the projector body 12 are used for angle adjustment, and after the camera 17 faces the projection screen, the central processor 5, the central processing unit, The internet of things module 6 and the computer know the position of the screen, and then the PLC7 is matched to control the second stepping motor 117 and the first speed reducer 112 to control the positioning seat 114, the rotating disc 115, the support arm 111, the left positioning arm 1181, the right wrapping arm 1186 and the projector body 12 to move accurately and the projector body 12 faces the screen, after adjustment is completed, the computer is matched with the projector body 12 to affect projection use, when the left positioning arm 1181 needs to move left and right, the left positioning arm 1181 is slid to enable the telescopic column 1182 and the limiting bar 1183 to move in the right wrapping arm 1186, and then the positioning bolt 1184 is screwed to fix the telescopic column 1182 to complete assembly adjustment.

The technical solutions of the present invention or similar technical solutions designed by those skilled in the art based on the teachings of the technical solutions of the present invention are all within the scope of the present invention.

Claims

1. The medical image projection equipment is characterized by comprising a chassis (1), a protection box (2), a control cabinet (3), a circuit main board (4), a central processing unit (5), an Internet of things module (6), a PLC (7), a ship-shaped switch (8), a rocker (9), a supporting, adjusting and moving stable base structure (10), a multi-direction adjusting and stabilizing arm structure (11), a projector body (12), a laser driver (13), a laser receiver (14), a laser transmitter (15), a lens (16) and a camera (17), wherein the protection box (2) is installed on a bolt at the middle part of the upper surface of the chassis (1), and the control cabinet (3) is installed on a bolt at the right side of the upper surface of the chassis (1); the circuit main board (4) is embedded in the upper side of the interior of the control cabinet (3), and meanwhile the front surface of the circuit main board (4) is electrically connected with the central processing unit (5), the Internet of things module (6) and the PLC (7); the ship-shaped switch (8) and the rocker (9) are electrically connected to the right side and the left side of the upper part of the circuit main board (4); the supporting, adjusting and moving stable base seat structure (10) is arranged around the lower end of the chassis (1); the multi-direction adjusting stable arm structure (11) is arranged between the protection box (2) and the projector body (12); the projector body (12) is internally provided with a laser driver (13), a laser receiver (14) and a laser transmitter (15) by bolts; the lens (16) is integrally arranged at the left end of the projector body (12); the camera (17) is mounted on the left side of the lower end of the projector body (12) through a bolt; the supporting, adjusting and moving stable foundation base structure (10) comprises an internal thread cylinder (101), a stable screw (102), an anti-skidding sucker (103), a dismounting cylinder (104), a cross rod (105) and a moving movable arm structure (106), wherein the internal thread cylinder (101) is supported at the lower part of the inner side of the moving movable arm structure (106); the stabilizing screw rod (102) is in threaded connection with the inside of the internal thread cylinder (101), an anti-skid sucker (103) is movably embedded at one end of the stabilizing screw rod (102), and the other end of the stabilizing screw rod is in threaded connection with the disassembling cylinder (104); the cross rod (105) is mounted at the upper end of the dismounting cylinder (104) through a bolt.

2. The medical image projection apparatus as claimed in claim 1, wherein the movable arm structure (106) comprises a rotating head (1061), a cross bar (1062), a vertical bar (1063), an inclined arm (1064), a movable slot (1065) and a movable wheel (1066), the cross bar (1062) is welded to the right end of the rotating head (1061), and the vertical bar (1063) is screwed to the lower end of the cross bar (1062); the inclined arm (1064) is coupled to the lower part of the inner side of the rotating head (1061); the movable groove (1065) is formed in the right lower side of the inclined arm (1064), and an internal thread cylinder (101) is further mounted on the right lower portion of the inclined arm (1064) through a bolt and a nut; the moving wheel (1066) is coupled to the lower right portion of the rear wall of the tilting arm (1064).

3. The medical image projection apparatus as claimed in claim 1, wherein the internally threaded cylinder (101) is inserted into the movable slot (1065), and a bolt at the front end of the internally threaded cylinder (101) passes through the lower portion of the front end of the inclined arm (1064) and is fixed thereto by a nut.

4. The medical image projection apparatus as claimed in claim 2, wherein the rotating head (1061) is bolted to the lower end of the base plate (1), and the inner lower side of the rotating head (1061) is formed with a recess, which in turn movably supports the tilting arm (1064).

5. The medical image projection apparatus as claimed in claim 1, wherein the multi-direction adjustment stabilization arm structure (11) comprises a support arm (111), a first speed reducer (112), a first stepping motor (113), a positioning seat (114), a rotating disc (115), a second speed reducer (116), a second stepping motor (117) and an extension arm structure (118), the lower end of the support arm (111) is coupled to the rear end of the positioning seat (114), and the first speed reducer (112) is mounted on the front end of the positioning seat (114) and the upper portion of the front end of the support arm (111) by bolts; the first stepping motor (113) is mounted at the front end of the first speed reducer (112) through a bolt; the positioning seat (114) is mounted at the upper end of the rotating disc (115) through bolts, and the rotating disc (115) is movably embedded at the upper side inside the protection box (2); the second speed reducer (116) is mounted on the inner wall of the protection box (2) through bolts, and the upper end of the second speed reducer (116) is in shaft connection with the lower end of the rotating disc (115); the second stepping motor (117) is arranged on the right side of the front end of the second speed reducer (116) through a bolt; the extension arm structure (118) is arranged at the upper part of the rear end of the support arm (111).

6. The medical image projection device as claimed in claim 5, wherein the extension arm structure (118) includes a left positioning arm (1181), a telescopic column (1182), a limiting bar (1183), a positioning bolt (1184), a penetrating frame (1185) and a right wrapping arm (1186), the telescopic column (1182) is welded to the right end of the left positioning arm (1181), and the limiting bar (1183) is welded to the periphery of the outer wall of the telescopic column (1182); the positioning bolts (1184) are in threaded connection with the upper side and the lower side of the front surface and the rear surface of the inserting frame (1185); the outer side of the left surface of the right wrapping arm (1186) is welded with a penetration frame (1185), and the middle part inside the right wrapping arm (1186) is inserted with a telescopic column (1182) and a limiting strip (1183); and a first speed reducer (112) is mounted on a left bolt at the front end of the right wrapping arm (1186).

7. The medical image projection apparatus as claimed in claim 5, wherein the lower portion of the front end of the supporting arm (111) is coupled to the positioning base (114), the upper portion of the rear end is coupled to the right wrapping arm (1186), the rear end of the left positioning arm (1181) is coupled to the right side of the front end of the projector body (12), and the rear end of the first decelerator (112) is connected to the shaft inside keys of the supporting arm (111), the right wrapping arm (1186) and the projector body (12).

8. The medical image projection device as claimed in claim 6, wherein the telescopic column (1182) at the right end of the left positioning arm (1181) is assembled in a cross shape in cooperation with the limiting bar (1183), and the telescopic column (1182) and the limiting bar (1183) are both adapted to the right wrapping arm (1186).