Auxiliary positioning device for injection of macaque

Abstract

The invention discloses a macaque injection auxiliary positioning device, and relates to the technical field of animal breeding, the macaque injection auxiliary positioning device comprises a fixing plate, the surface of the fixing plate is provided with a restraint strap, the surface of the fixing plate is fixedly provided with a rotating shaft, the restraint strap is provided with a magic tape, and the macaque injection auxiliary positioning device further comprises a limiting device; wherein the limiting device comprises a rotating plate, a sliding rod, a protective cover and two elastic pieces, the rotating plate is rotationally installed on the circumferential face of the rotating shaft, the sliding rod slidably penetrates through the face, away from the fixed plate, of the rotating plate, and the protective cover is fixedly installed on the face, away from the rotating plate, of the sliding rod; the two elastic pieces are fixedly installed on the two sides of the inner wall of the protective cover and make contact with the forearms of the macaque in the relaxed state by adjusting the angle of the rotating plate, the tension emotion of the macaque is relieved, then the hands of the macaque are covered with the protective cover, and the macaque is prevented from scratching workers when struggling.

Description

Technical Field

[0001] The present invention relates to the technical field of animal breeding, and specifically relates to an auxiliary positioning device for injecting macaques. Background Art

[0002] The auxiliary positioning device for injecting macaques is usually used in fields such as medical research, drug testing, and animal behavior research. The main function of this device is to assist in precise injection or sampling operations on macaques, while ensuring the safety and accuracy of the operations.

[0003] The patent with the patent announcement number CN221154389U relates to an auxiliary positioning device for injecting animals, including a fixed platform; both side walls of the fixed platform are fixedly connected with first fixed columns; output electric cylinders are fixedly connected to the side walls of one side of a pair of the first fixed columns away from each other; storage grooves are opened on the side walls of one side of a pair of the first fixed columns close to each other; push rods are fixedly connected to the side walls of one side of a pair of the output electric cylinders close to each other; the end of the push rod away from the output electric cylinder is arranged inside the storage groove; during operation, it attracts the attention of the animal and reduces the struggling amplitude; because the feet of the animal are mutually attached to the top of the moving device, the load of the clamping and fixing device is reduced; the overall device of this patent reduces the strong struggling of the animal, which will cause the load of the clamping and fixing device itself to increase. Under long-term operation, the fixing work of the clamping and fixing device itself will be damaged, resulting in a poor positioning effect when positioning the animal again.

[0004] In the above patent, it has a good positioning effect. By the feet of the animal being mutually attached to the top of the moving device, the load of the clamping and fixing device is reduced, thereby improving the positioning effect. However, when injecting a macaque, its arm still needs to be fixed. Since the fixation of the arm will cause the macaque to be emotionally tense, during the struggling process, there is a situation where the macaque scratches the hands of the staff, thus increasing the difficulty of injection. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the present invention provides an auxiliary positioning device for injecting macaques, which solves the problems raised in the above background art.

[0006] To achieve the above object, the present invention is realized through the following technical solutions: A macaque injection auxiliary positioning device, including a fixing plate, a restraint belt is arranged on the surface of the fixing plate, a rotating shaft is fixedly installed on the surface of the fixing plate, a magic tape is arranged on the restraint belt, the arm of the macaque contacts the soft cushion plate on the fixing plate during movement, and then the restraint belt is tightened to fix the upper arm of the macaque. It also includes a limiting device; wherein, the limiting device includes a rotating plate, a sliding rod, a protective cover and two elastic sheets, the rotating plate is rotatably installed on the circumferential surface of the rotating shaft, the sliding rod slidably penetrates through the surface of the rotating plate away from the fixing plate, the protective cover is fixedly installed on the surface of the sliding rod away from the rotating plate, the staff controls the protective cover to move away from the rotating plate, the movement of the protective cover drives the sliding rod to move away from the rotating plate, the two elastic sheets are fixedly installed on both sides of the inner wall of the protective cover, and the protective cover contacts the top of the rotating plate.

[0007] According to the above technical solution, a sliding block slidably penetrates through the top of the rotating plate, a first spring is arranged between the sliding block and the rotating plate, a rubber plate is fixedly installed on the top of the sliding block, a resisting block is fixedly installed on the surface of the rubber plate close to the elastic sheet, and a round rod is fixedly installed on the surface of the protective cover. The movement of the protective cover drives the round rod to move away from the rotating plate.

[0008] According to the above technical solution, soft cushion plates are arranged on the tops of the fixing plate and the rotating plate. An arc surface one is opened on the surface of the elastic sheet close to the resisting block, and an arc surface two is opened on the surface of the resisting block close to the elastic sheet. The arc surface one contacts the arc surface two. The arc surface one of the elastic sheet separates from the arc surface two of the resisting block during movement, so that the deformed first spring restores and drives the sliding block to move.

[0009] According to the above technical solution, an auxiliary device for automatically closing the protective cover and a protection device for controlling the reset speed of the protective cover are arranged on the rotating plate; the auxiliary device includes a carrying plate, a telescopic rod, a second spring and a connecting frame. The telescopic rod squeezes the second spring during movement, and the second spring deforms under the extrusion. The carrying plate is fixedly installed on the surface of the rotating plate, the telescopic rod slidably penetrates through the inner and outer walls of the carrying plate, the second spring is arranged between the telescopic rod and the carrying plate, the connecting frame is fixedly installed on the circumferential surface of the telescopic rod, a rectangular groove is opened on the top of the carrying plate, a round hole is opened on the surface of the connecting frame close to the round rod, the round rod contacts the inner wall of the round hole, the movement of the round rod drives the connecting frame to move, and the movement of the connecting frame drives the telescopic rod to move away from the carrying plate.

[0010] According to the above technical solution, a rectangular plate is fixedly installed on one side of the telescopic rod away from the connecting frame. A sliding frame is slidably installed on the inner wall of the rectangular plate. A third spring is arranged between the sliding frame and the rectangular plate. A roller is rotatably penetrated through the surface of the sliding frame. The movement of the sliding frame drives the roller to move towards the connecting frame. After the roller moves to a predetermined position, it stops moving. The rectangular plate contacts the inner wall of the rectangular groove.

[0011] According to the above technical solution, a contact plate is fixedly installed on one side of the telescopic rod away from the rectangular plate. An arc surface three is opened at the bottom of the contact plate. The movement of the telescopic rod drives the contact plate to move away from the carrying plate.

[0012] According to the above technical solution, the protection device includes a hollow frame, a rotating rod, an L-shaped plate and a rectangular piece. The arc surface three of the contact plate contacts the rectangular piece during movement. The movement of the contact plate drives the rectangular piece to rotate towards the cylindrical rod. The hollow frame slidably penetrates through the surface of the rotating plate. The rotating rod is rotatably installed on the inner wall of the hollow frame. The L-shaped plate is fixedly installed on the circumferential surface of the rotating rod. The rectangular piece is fixedly installed on the top of the L-shaped plate. A first torsion spring is arranged between the rotating rod and the hollow frame. An arc surface four is opened on the side of the L-shaped plate away from the rotating rod. The arc surface four contacts the bottom of the inner wall of the hollow frame. The rotation of the rectangular piece drives the L-shaped plate to rotate towards the cylindrical rod. The arc surface four of the L-shaped plate separates from the hollow frame during rotation. The rectangular piece itself has elasticity.

[0013] According to the above technical solution, a cylindrical rod is rotatably installed on the side of the hollow frame away from the carrying plate. A limiting plate is fixedly installed on the circumferential surface of the cylindrical rod. A knob is fixedly installed on the side of the cylindrical rod away from the hollow frame. A second torsion spring is arranged between the cylindrical rod and the hollow frame. The cylindrical rod stretches the second torsion spring during rotation. At the same time, the rotation of the cylindrical rod drives the limiting plate to rotate away from the rotating plate. A card slot is opened on the side of the rotating plate close to the limiting plate. The limiting plate contacts the inner wall of the card slot.

[0014] The present invention provides an auxiliary positioning device for injecting monkeys. It has the following beneficial effects: (1) For this auxiliary positioning device for injecting monkeys, the sliding block stretches the first spring during movement, and the rubber plate exerts a clamping force on the wrist of the monkey during movement. By opening the rubber plate and the protective cover synchronously, the operation efficiency can be improved. Then, the rubber plate is used to clamp the wrist of the monkey to prevent the clamped wrist from being injured when the monkey struggles. At the same time, the protective cover covers the hand of the monkey during movement. By adjusting the angle of the rotating plate to contact the forearm of the monkey in a relaxed state, it helps to relieve the tension of the monkey. Then, the protective cover is used to cover the hand of the monkey to prevent the monkey from scratching the staff when struggling.

[0015] (2) In the macaque injection auxiliary positioning device, the connecting frame applies additional thrust to the round rod, so that the connecting frame moves and drives the round rod to move. The round rod is pushed to move when the connecting frame is reset, which makes it convenient for the staff to focus on observing the condition of the macaque. At the same time, the No. 2 spring can effectively prevent the protective cover from being opened at will. At the same time, the roller pushes away the hair on the macaque's forearm during movement. The roller is in close contact with the macaque's arm to ensure that the roller can smoothly push away the hair on the arm, so that the macaque's skin is smoothly exposed, which is convenient for the staff to apply disinfectant for injection.

[0016] (3) In the macaque injection auxiliary positioning device, the rectangular plate applies additional resistance to the contact plate, which slows down the movement of the contact plate. By setting a rotatable rectangular plate, the rectangular plate only applies intermittent resistance when the contact plate is reset, thereby controlling the protective cover to close smoothly and preventing the protective cover from hitting the macaque's hand when it is quickly reset. At the same time, the hollow frame is separated from the rotating plate during movement. Through standardized operation, the staff can quickly pull out the hollow frame for inspection and maintenance, and can also stop using the deceleration effect of the rectangular plate through this operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the position structure of the contact plate and the L-shaped plate of the present invention; Figure 3 It is a schematic diagram of a half-section structure of a rotating plate of the present invention; Figure 4 This is a schematic diagram of the internal structure of the protective cover of the present invention; Figure 5 For the present invention Figure 4 The enlarged structural diagram at A in the middle; Figure 6 It is a schematic diagram of the overall structure of the auxiliary device of the present invention; Figure 7 It is a schematic diagram of the internal structure of the auxiliary device of the present invention; Figure 8 It is a schematic diagram of the internal structure of the protective device of the present invention.

[0018] In the figure: 1. fixed plate; 2. restraint belt; 3. rotating shaft; 4. rotating plate; 5. sliding rod; 6. protective cover; 7. elastic sheet; 8. sliding block; 9. spring No. 1; 10. rubber plate; 11. stop block; 12. round rod; 131. carrying plate; 132. telescopic rod; 133. spring No. 2; 134. connecting frame; 135. rectangular plate; 136. sliding frame; 137. spring No. 3; 138. roller; 139. contact plate; 141. hollow frame; 142. rotating rod; 143. L-shaped plate; 144. rectangular sheet; 145. cylindrical rod; 146. limit plate; 147. knob. Detailed implementation manners

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0020] Please refer to Figure 1 - Figure 5 One embodiment of the present invention is: a macaque injection auxiliary positioning device, including a fixing plate 1. A restraint strap 2 is arranged on the surface of the fixing plate 1. A rotating shaft 3 is fixedly installed on the surface of the fixing plate 1. A magic tape is arranged on the restraint strap 2. A limiting device is further included. Among them, the limiting device includes a rotating plate 4, a sliding rod 5, a protective cover 6 and two elastic sheets 7. The rotating plate 4 is rotatably installed on the circumferential surface of the rotating shaft 3. The sliding rod 5 slidably penetrates through the side of the rotating plate 4 away from the fixing plate 1. The protective cover 6 is fixedly installed on the side of the sliding rod 5 away from the rotating plate 4. The two elastic sheets 7 are fixedly installed on both sides of the inner wall of the protective cover 6. The protective cover 6 contacts the top of the rotating plate 4. By covering the hand of the macaque with the protective cover 6, it is prevented that the macaque scratches the staff when struggling.

[0021] A sliding block 8 slidably penetrates through the top of the rotating plate 4. A first spring 9 is arranged between the sliding block 8 and the rotating plate 4. A rubber plate 10 is fixedly installed on the top of the sliding block 8. A resisting block 11 is fixedly installed on the side of the rubber plate 10 close to the elastic sheet 7. A round rod 12 is fixedly installed on the surface of the protective cover 6. By clamping the wrist of the macaque with the rubber plate 10, it is prevented that the clamped wrist of the macaque is injured when struggling.

[0022] Soft cushion plates are arranged on the tops of both the fixing plate 1 and the rotating plate 4. An arc surface one is formed on the side of the elastic sheet 7 close to the resisting block 11. An arc surface two is formed on the side of the resisting block 11 close to the elastic sheet 7. The arc surface one contacts the arc surface two. By providing the arc surface one and the arc surface two, it is ensured that when the elastic sheet 7 contacts the resisting block 11, the elastic sheet 7 can smoothly drive the resisting block 11 to continue to move.

[0023] When this embodiment is in operation, the staff controls the macaque's arm to pass through between the fixed plate 1 and the restraint strap 2. During the movement of the macaque's arm, it comes into contact with the soft cushion plate on the fixed plate 1. Then, the restraint strap 2 is tightened to fix the macaque's upper arm. After the upper arm is fixed, the staff adjusts the angle of the rotating plate 4 so that the soft cushion plate on the rotating plate 4 contacts the macaque's forearm in a relaxed state. Then, the staff controls the protective cover 6 to move away from the rotating plate 4. The movement of the protective cover 6 drives the sliding rod 5 to move away from the rotating plate 4. The movement of the sliding rod 5 provides necessary support for the protective cover 6. At the same time, the movement of the protective cover 6 drives the round rod 12 to move away from the rotating plate 4. When the protective cover 6 moves to a predetermined position, the staff places the macaque's forearm in a designated position and then pushes the protective cover 6 to reset. During the reset process of the protective cover 6, it covers the macaque's hand. After the above operations are completed, the staff can smoothly perform the injection operation. By adjusting the angle of the rotating plate 4 to contact the macaque's forearm in a relaxed state, it helps to relieve the macaque's nervousness. Then, the macaque's hand is covered with the protective cover 6 to prevent the macaque from scratching the staff during struggling. When the protective cover 6 moves, it drives the elastic piece 7 to move. The first arc surface of the elastic piece 7 separates from the second arc surface of the abutting block 11 during the movement, causing the deformed first spring 9 to recover and drive the sliding block 8 to move. The movement of the sliding block 8 drives the rubber plate 10 to move towards the elastic piece 7. The movement of the rubber plate 10 drives the abutting block 11 to move towards the elastic piece 7. After the rubber plate 10 moves to a designated position, it stops moving. At this time, the staff can control the macaque's hand to pass through between the two rubber plates 10, so that the macaque's wrist contacts the rubber plate 10. Then, repeat the above operations to control the protective cover 6 to reset. The movement of the protective cover 6 drives the elastic piece 7 to reset, and the first arc surface contacts the second arc surface again during the movement. At this time, the first arc surface moves to squeeze the second arc surface, and the abutting block 11 is squeezed to move away from the elastic piece 7. The movement of the abutting block 11 drives the rubber plate 10 to move away from the elastic piece 7. The movement of the rubber plate 10 drives the sliding block 8 to move away from the elastic piece 7. The sliding block 8 stretches the first spring 9 during the movement. At the same time, the rubber plate 10 exerts a clamping force on the macaque's wrist during the movement. By opening the rubber plate 10 and the protective cover 6 synchronously, the operation efficiency can be improved. Then, the macaque's wrist is clamped by the rubber plate 10 to prevent the clamped wrist from being injured during the macaque's struggling, thereby improving the safety of positioning.

[0024] Please refer to Figure 1 - Figure 8, on the basis of the above embodiments, in another embodiment of the present invention, an auxiliary device for automatically closing the protective cover 6 and a protection device for controlling the reset speed of the protective cover 6 are provided on the rotating plate 4; the auxiliary device includes a mounting plate 131, a telescopic rod 132, a second spring 133 and a connecting frame 134. The mounting plate 131 is fixedly installed on the surface of the rotating plate 4. The telescopic rod 132 slidably penetrates the inner and outer walls of the mounting plate 131. The second spring 133 is arranged between the telescopic rod 132 and the mounting plate 131. The connecting frame 134 is fixedly installed on the circumferential surface of the telescopic rod 132. A rectangular groove is formed at the top of the mounting plate 131. A circular hole is formed on one side of the connecting frame 134 close to the round rod 12. The round rod 12 is in contact with the inner wall of the circular hole. When the connecting frame 134 is reset, it pushes the round rod 12 to move, which is convenient for the staff to focus on observing the condition of the macaque.

[0025] A rectangular plate 135 is fixedly installed on the side of the telescopic rod 132 away from the connecting frame 134. A sliding frame 136 is slidably installed on the inner wall of the rectangular plate 135. A third spring 137 is arranged between the sliding frame 136 and the rectangular plate 135. A roller 138 is rotatably penetrated through the surface of the sliding frame 136. The rectangular plate 135 is in contact with the inner wall of the rectangular groove. By closely contacting the roller 138 with the arm of the macaque, it is ensured that the roller 138 can smoothly push aside the hair on the arm, so that the skin of the macaque is smoothly exposed.

[0026] A contact plate 139 is fixedly installed on the side of the telescopic rod 132 away from the rectangular plate 135. A third arc surface is formed at the bottom of the contact plate 139. By providing the third arc surface, it helps to reduce the wear of the contact plate 139 during the linkage process, thereby extending the service life of the contact plate 139.

[0027] The protection device includes a hollow frame 141, a rotating rod 142, an L-shaped plate 143 and a rectangular piece 144. The hollow frame 141 slidably penetrates the surface of the rotating plate 4. The rotating rod 142 is rotatably installed on the inner wall of the hollow frame 141. The L-shaped plate 143 is fixedly installed on the circumferential surface of the rotating rod 142. The rectangular piece 144 is fixedly installed on the top of the L-shaped plate 143. A first torsion spring is arranged between the rotating rod 142 and the hollow frame 141. A fourth arc surface is formed on the side of the L-shaped plate 143 away from the rotating rod 142. The fourth arc surface is in contact with the bottom of the inner wall of the hollow frame 141. The rectangular piece 144 itself has elasticity. By providing the rotatable rectangular piece 144, it is realized that the rectangular piece 144 only exerts intermittent resistance when the contact plate 139 is reset, so as to control the smooth closing of the protective cover 6.

[0028] A cylindrical rod 145 is rotatably installed on a side of the hollow frame 141 away from the mounting plate 131. A limiting plate 146 is fixedly installed on the circumferential surface of the cylindrical rod 145. A knob 147 is fixedly installed on a side of the cylindrical rod 145 away from the hollow frame 141. A second torsion spring is arranged between the cylindrical rod 145 and the hollow frame 141. A clamping groove is formed on a side of the rotating plate 4 close to the limiting plate 146. The limiting plate 146 is in contact with the inner wall of the clamping groove. Through standardized operations, the staff can quickly extract the hollow frame 141 for maintenance, or can also stop using the deceleration effect of the rectangular piece 144 through this operation.

[0029] When the present embodiment is working, when the staff opens the protective cover 6, the round rod 12 moves to drive the connecting frame 134 to move away from the mounting plate 131, the connecting frame 134 moves to drive the telescopic rod 132 to move away from the mounting plate 131, the telescopic rod 132 moves to drive the contact plate 139 to move away from the mounting plate 131, and at the same time, the telescopic rod 132 squeezes the No. 2 spring 133 during the movement, and the No. 2 spring 133 is squeezed and deformed. When the macaque's arm is placed, the staff can directly release the protective cover 6, so that the deformed No. 2 spring 133 recovers and drives the telescopic rod 132 to reset, and the telescopic rod 132 The movement drives the connecting frame 134 to reset, and the movement of the connecting frame 134 applies an additional thrust to the round rod 12, so that the movement of the connecting frame 134 drives the round rod 12 to move in the direction of the rotating plate 4, and the movement of the round rod 12 drives the protective cover 6 to move in the direction of the rotating plate 4. The round rod 12 is pushed to move when the connecting frame 134 is reset, which makes it convenient for the staff to focus on observing the condition of the macaque. At the same time, the second spring 133 provided can effectively prevent the protective cover 6 from being opened at will. The movement of the telescopic rod 132 drives the rectangular plate 135 to move, and the movement of the rectangular plate 135 drives the sliding frame 136 to move in the direction of the connecting frame 134. The sliding frame The movement of roller 136 drives roller 138 to move toward the connecting frame 134. Roller 138 stops moving after moving to a predetermined position. When the monkey's hand reaches toward the rubber plate 10, it contacts the circumferential surface of roller 138, so that roller 138 rotates on the monkey's hand. As roller 138 contacts the monkey's forearm, roller 138 starts to move upward. The movement of roller 138 drives sliding frame 136 to move upward. Sliding frame 136 stretches spring 3 137 during movement. The deformed spring 3 137 applies a reaction force to sliding frame 136, so that roller 138 keeps close contact with the monkey's forearm. When telescopic rod 132 is reset, The telescopic rod 132 moves to drive the rectangular plate 135 to move away from the connecting frame 134, the rectangular plate 135 moves to drive the sliding frame 136 to move away from the connecting frame 134, the sliding frame 136 moves to drive the roller 138 to move away from the connecting frame 134, and the roller 138 pushes away the hair on the forearm of the macaque during the movement, and spreads the hair toward the upper arm, so that the skin on the forearm of the macaque is exposed, and the roller 138 is in close contact with the arm of the macaque, ensuring that the roller 138 can smoothly push away the hair on the arm, so that the skin of the macaque is smoothly exposed, which is convenient for the staff to apply disinfectant for injection; When the contact plate 139 moves in a direction away from the mounting plate 131, the arc surface 3 of the contact plate 139 contacts the rectangular piece 144 during the movement, and the movement of the contact plate 139 drives the rectangular piece 144 to rotate in the direction of the cylindrical rod 145. The rotation of the rectangular piece 144 drives the L-shaped plate 143 to rotate in the direction of the cylindrical rod 145. The arc surface 4 of the L-shaped plate 143 separates from the hollow frame 141 during the rotation. At the same time, the rotation of the L-shaped plate 143 drives the rotating rod 142 to move in the direction of the cylindrical rod 145. The rotating rod 142 stretches the first torsion spring during the rotation, and the contact plate 139 continues to move with the rectangular piece 144. When the L-shaped plate 144 is separated, the deformed torsion spring No. 1 is restored to drive the rotating rod 142 to reset, so that the L-shaped plate 143 and the rectangular plate 144 are reset together. When the contact plate 139 moves in the direction of the mounting plate 131, the contact plate 139 moves to contact the rectangular plate 144, and the contact plate 139 moves to squeeze the rectangular plate 144. The rectangular plate 144 is squeezed and deformed. The deformed rectangular plate 144 exerts additional resistance on the contact plate 139, so that the speed of the contact plate 139 moving is slowed down by the influence of the additional resistance. When the contact plate 139 is separated from the rectangular plate 144, the contact plate 139 moves to squeeze the rectangular plate 144. When the contact plate 139 is reset, the deformed rectangular sheet 144 is quickly restored. By setting the rotatable rectangular sheet 144, the rectangular sheet 144 applies intermittent resistance only when the contact plate 139 is reset, thereby controlling the protective cover 6 to be closed smoothly, preventing the protective cover 6 from hitting the monkey's hand when it is quickly reset. When maintenance is required, the staff can manually turn the knob 147, and the rotation of the knob 147 drives the cylindrical rod 145 to rotate in the direction away from the rotating plate 4. The cylindrical rod 145 stretches the second torsion spring during the rotation, and at the same time, the rotation of the cylindrical rod 145 drives the limit plate 146 to move away from the rotating plate 4. Rotate, the limit plate 146 separates from the slot during rotation, so that the limit on the hollow frame 141 is released, and then the knob 147 is pulled to move in the direction away from the rotating plate 4. The movement of the knob 147 drives the cylindrical rod 145 to move in the direction away from the rotating plate 4. The movement of the cylindrical rod 145 drives the hollow frame 141 to move in the direction away from the rotating plate 4. The hollow frame 141 is separated from the rotating plate 4 during the movement. Through standardized operation, the staff can quickly pull out the hollow frame 141 for maintenance, and can also stop using the deceleration effect of the rectangular sheet 144 through this operation.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A macaque injection auxiliary positioning device, comprising a fixing plate (1), characterized in that: A restraining belt (2) is provided on the surface of the fixing plate (1), a rotating shaft (3) is fixedly mounted on the surface of the fixing plate (1), a Velcro is provided on the restraining belt (2), and a limiting device is also included; The limiting device comprises a rotating plate (4), a sliding rod (5), a protective cover (6) and two elastic sheets (7); the rotating plate (4) is rotatably mounted on the circumferential surface of the rotating shaft (3); the sliding rod (5) slides through a side of the rotating plate (4) away from the fixed plate (1); the protective cover (6) is fixedly mounted on a side of the sliding rod (5) away from the rotating plate (4); the two elastic sheets (7) are fixedly mounted on both sides of the inner wall of the protective cover (6); and the protective cover (6) is in contact with the top of the rotating plate (4); Wherein, the rotating plate (4) is provided with an auxiliary device for automatically closing the protective cover (6) and a protective device for controlling the resetting speed of the protective cover.

2. The macaque injection auxiliary positioning device according to claim 1, characterized in that: A sliding block (8) is slidably passed through the top of the rotating plate (4), a first spring (9) is arranged between the sliding block (8) and the rotating plate (4), a rubber plate (10) is fixedly mounted on the top of the sliding block (8), a stop block (11) is fixedly mounted on a side of the rubber plate (10) close to the elastic sheet (7), and a round rod (12) is fixedly mounted on the surface of the protective cover (6).

3. The macaque injection auxiliary positioning device according to claim 2, characterized in that: A soft pad is provided on the top of the fixed plate (1) and the rotating plate (4); a first arc surface is provided on a side of the elastic sheet (7) close to the stop block (11); a second arc surface is provided on a side of the stop block (11) close to the elastic sheet (7); and the first arc surface is in contact with the second arc surface.

4. The macaque injection auxiliary positioning device according to claim 3, characterized in that: The auxiliary device comprises a carrying plate (131), a telescopic rod (132), a second spring (133) and a connecting frame (134); the carrying plate (131) is fixedly mounted on the surface of the rotating plate (4); the telescopic rod (132) slides through the inner and outer walls of the carrying plate (131); the second spring (133) is arranged between the telescopic rod (132) and the carrying plate (131); the connecting frame (134) is fixedly mounted on the circumferential surface of the telescopic rod (132); a rectangular groove is provided on the top of the carrying plate (131); a circular hole is provided on a side of the connecting frame (134) close to the round rod (12); the round rod (12) contacts the inner wall of the circular hole.

5. The macaque injection auxiliary positioning device according to claim 4, characterized in that: A rectangular plate (135) is fixedly mounted on one side of the telescopic rod (132) away from the connecting frame (134); a sliding frame (136) is slidably mounted on the inner wall of the rectangular plate (135); a third spring (137) is provided between the sliding frame (136) and the rectangular plate (135); a roller (138) is rotatably passed through the surface of the sliding frame (136); and the rectangular plate (135) is in contact with the inner wall of the rectangular groove.

6. The macaque injection auxiliary positioning device according to claim 5, characterized in that: A contact plate (139) is fixedly mounted on a side of the telescopic rod (132) away from the rectangular plate (135), and a curved surface (3) is provided at the bottom of the contact plate (139).

7. The macaque injection auxiliary positioning device according to claim 6, characterized in that: The protective device comprises a hollow frame (141), a rotating rod (142), an L-shaped plate (143) and a rectangular sheet (144); the hollow frame (141) slides through the surface of the rotating plate (4); the rotating rod (142) is rotatably mounted on the inner wall of the hollow frame (141); the L-shaped plate (143) is fixedly mounted on the circumferential surface of the rotating rod (142); the rectangular sheet (144) is fixedly mounted on the top of the L-shaped plate (143); a first torsion spring is arranged between the rotating rod (142) and the hollow frame (141); a fourth arc surface is provided on a side of the L-shaped plate (143) away from the rotating rod (142); the fourth arc surface contacts the bottom of the inner wall of the hollow frame (141); and the rectangular sheet (144) itself has elasticity.

8. The macaque injection auxiliary positioning device according to claim 7, characterized in that: A cylindrical rod (145) is rotatably mounted on one side of the hollow frame (141) away from the mounting plate (131); a limiting plate (146) is fixedly mounted on the circumferential surface of the cylindrical rod (145); a knob (147) is fixedly mounted on one side of the cylindrical rod (145) away from the hollow frame (141); a second torsion spring is arranged between the cylindrical rod (145) and the hollow frame (141); a slot is provided on one side of the rotating plate (4) close to the limiting plate (146); and the limiting plate (146) contacts the inner wall of the slot.

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