Tree shrew oral cavity opening device for experiment

Abstract

The utility model discloses an experimental tree shrew oral cavity opening device, which relates to the technical field of tree shrew experimental equipment and comprises a mounting plate, two connecting shafts are rotatably connected to the surface of the mounting plate, gears are arranged in the middles of the connecting shafts, the two gears are in meshed connection, a connecting rod is arranged at one end of each connecting shaft, and a connecting arm is arranged at one end of each connecting rod. One end of each connecting arm is provided with an opening assembly, and the other end of each connecting shaft is provided with a supporting rod; the tree shrew oral cavity opening device has the advantages that the holding rods enable the connecting rods to rotate outwards under the cooperation of the supporting rods and the connecting shafts, the two connecting rods rotate more synchronously through meshing connection of the two gears, the two supporting plates open the oral cavity of a tree shrew through the cooperation of the connecting rods and the connecting arms, and the tree shrew oral cavity opening device is more convenient to use. Therefore, the opening and closing degree of the two supporting plates can be adjusted through the pressure exerting force of the two holding rods, the adjusting process is convenient and efficient, and operation is safer.

Description

Technical Field

[0001] The utility model relates to a cavity expansion device, in particular to an oral cavity expansion device for tree shrews used in experiments, and belongs to the technical field of tree shrew experimental equipment. Background Art

[0002] Tree shrews are mammals that live in Africa and have attracted much attention from researchers due to their unique oral structure. In recent years, with the development of animal physiology research, the demand for research on the oral structure of tree shrews has gradually increased, resulting in the need for a device to open the mouth of tree shrews for experimental use.

[0003] Among them, the "A mouth-opening device for tree shrews" disclosed in the application number "201922041939.3" is also an increasingly mature technology, including a body sleeve, an elastic band and an adjustable mouth opener; the adjustable mouth opener includes a support plate and an adjuster; an observation port is provided in the center of the support plate; the support plate includes an upper support plate and a lower support plate, and the upper support plate and the lower support plate are rotatably connected by a rotating shaft; the adjuster includes a fixed rod barrel hinged to the end of the lower support plate, and an adjusting rod barrel hinged to the end of the upper support plate. The beneficial effects of the present utility model are: this device is a new mouth opener technology, which has a better fixing effect, is easy and efficient to use, and can adjust the opening height according to the size of its mouth and experimental needs; and the animal's mouth opening amplitude can be slightly adjusted, and the animal can slightly adjust the mouth opening amplitude by itself to improve comfort. Furthermore, this device is not only suitable for tree shrews, but also for all small experimental animals;

[0004] However, the above method still has the following defects in actual use: since the adjustment rod is located in the mouth of the tree shrew, it is necessary to reach into the mouth of the tree shrew to adjust the nut. This operation is not only cumbersome but also highly dangerous. At the same time, the upper support plate is in direct contact with the mouth, which can easily cause damage to the mouth of the tree shrew. Utility Model Content

[0005] The purpose of the present utility model is to provide an experimental tree shrew oral opening device to solve the problem proposed in the above-mentioned background technology that the nut needs to be adjusted by reaching into the tree shrew's mouth, which is cumbersome and dangerous to operate, and the upper support plate is in direct contact with the mouth, which can easily cause damage to the tree shrew's mouth.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solution: an experimental tree shrew oral opening device, comprising a mounting plate, the surface of the mounting plate being rotatably connected to two connecting shafts, a gear being provided in the middle of the connecting shaft, the two gears being meshed and connected, a connecting rod being provided at one end of the connecting shaft, a connecting arm being provided at one end of the connecting rod, a opening assembly being provided at one end of the two connecting arms, a support rod being provided at the other end of the connecting shaft, and an adjustment assembly being provided at one end of the two support rods.

[0007] As a preferred technical solution of the present invention, two fixing rods are provided on one side of the mounting plate, one end of the two fixing rods is provided with a first mounting sleeve, and one side of the first mounting sleeve is provided with a second mounting sleeve.

[0008] As a preferred technical solution of the present invention, first connecting blocks are provided on both sides of the first mounting sleeve, and second connecting blocks are provided on both sides of the second mounting sleeve. The two second connecting blocks are respectively fixedly connected to the corresponding first connecting blocks by bolts.

[0009] As a preferred technical solution of the present invention, a reinforcement block is provided on one side corresponding to the two fixing rods, and one side of the reinforcement block is fixedly connected to the surface of the first mounting sleeve.

[0010] As an optimal technical solution of the present invention, the support assembly includes two support plates, two protective sleeves and a plurality of rubber particles. The two support plates are respectively arranged at one end of the two connecting arms. A protective sleeve is provided on one side of the surface of the support plate, and a plurality of evenly spaced rubber particles are provided on the surface of the protective sleeve.

[0011] As a preferred technical solution of the present invention, one side corresponding to the two protective sleeves is provided with a mounting groove that matches the support plate.

[0012] As an optimal technical solution of the present invention, the adjustment assembly includes two grips, a connecting groove and a reset spring. The two grips are respectively arranged at one end of the two support rods. A connecting groove is provided on the corresponding side of the two grips, and a reset spring is arranged between the two connecting grooves.

[0013] As a preferred technical solution of the present invention, one end of one of the grips is rotatably connected to a limiting ring, and a limiting groove is provided on the top end of the other grip.

[0014] Compared with related technologies, the experimental tree shrew oral opening device provided by the present invention has the following beneficial effects:

[0015] 1. To open the mouth of the experimental tree shrew, the two grips are pressed inward. The grips, in conjunction with the support rod and the connecting shaft, cause the connecting rod to rotate outward. The two gears are meshed to synchronize the rotation of the two connecting rods. The connecting rods cooperate with the connecting arms to open the mouth of the tree shrew. The opening and closing of the two support plates can be adjusted by controlling the pressure of the two grips. This makes the adjustment process convenient and efficient, and the operation safer.

[0016] 2. The protective cover can protect the tree shrew's mouth. The protective cover is made of silicone material, which can reduce the damage to the tree shrew's mouth caused by long-term opening operation. The rubber particles on the surface of the protective cover can improve the anti-slip properties when in contact with the inner wall of the mouth.

[0017] 3. In order to fix the opening and closing angles of the two support plates, the limit ring in the adjustment assembly is inserted into the limit groove. Under the action of the return spring force, the two support plates and the protective cover are always in the open and closed state. The staff does not need to hold the handle all the time, which is convenient for subsequent observation and operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural diagram of the utility model;

[0019] Figure 2 This is one of the structural diagrams of the side surface of the utility model;

[0020] Figure 3 This is the second structural diagram of the side surface of the utility model;

[0021] Figure 4 This is a schematic structural diagram of the connecting rod of the utility model;

[0022] Figure 5 This is a schematic structural diagram of the adjustment component of the utility model.

[0023] In the figure: 1. Mounting plate; 111. Fixing rod; 112. First mounting sleeve; 1121. First connecting block; 113. Second mounting sleeve; 1131. Second connecting block; 114. Reinforcement block; 2. Connecting shaft; 3. Gear; 4. Connecting rod; 5. Connecting arm; 6. Spreading assembly; 601. Support plate; 602. Protective sleeve; 603. Rubber particles; 604. Mounting slot; 8. Support rod; 9. Adjustment assembly; 91. Grip; 92. Connecting slot; 93. Return spring; 94. Limiting ring; 95. Limiting slot. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] See also Figure 1-5The utility model provides an experimental tree shrew oral cavity opening device, including a mounting plate 1, the surface of the mounting plate 1 is rotatably connected to two connecting shafts 2, a gear 3 is provided in the middle of the connecting shaft 2, and the two gears 3 are meshed and connected, so that the two connecting rods 4 rotate more synchronously, a connecting rod 4 is provided at one end of the connecting shaft 2, a connecting arm 5 is provided at one end of the two connecting arms 5, and an opening component 6 is provided at one end of the two connecting arms 5, which is used to support the tree shrew's mouth through the opening component 6 and protect the mouth through the protective cover 602, and a support rod 8 is provided at the other end of the connecting shaft 2, which is connected to the connecting shaft 2 and can control the rotation of the connecting shaft 2 and the gear 3, thereby controlling the opening and closing size of the connecting rod 4 and the connecting arm 5, and an adjustment component 9 is provided at one end of the two support rods 8, which can fix the opening and closing angle of the support plate 601 by adjusting the component 9, so that the staff does not need to hold the handle all the time, which is convenient for subsequent observation and operation.

[0026] The adjustment component 9 includes two grips 91, a connecting groove 92 and a return spring 93. The two grips 91 are respectively arranged at one end of the two support rods 8. A connecting groove 92 is provided on the corresponding side of the two grips 91. A return spring 93 is provided between the two connecting grooves 92. The return spring 93 is in an extended state in its natural state. The elastic force generated by the return spring 93 facilitates the resetting of the connecting arm 5.

[0027] One end of one of the grips 91 is rotatably connected to a limiting ring 94 , and the top of the other grip 91 is provided with a limiting groove 95 that matches the limiting ring 94 . The limiting ring 94 can fix the angles of the two grips 91 through the cooperation of the limiting groove 95 .

[0028] The support assembly 6 includes two support plates 601, two protective sleeves 602 and a plurality of rubber particles 603. The two support plates 601 are respectively arranged at one end of the two connecting arms 5. A protective sleeve 602 is provided on one side of the surface of the support plate 601. The protective sleeve 602 is made of silicone material. The surface of the protective sleeve 602 is provided with a plurality of evenly spaced rubber particles 603, which has good anti-slip properties.

[0029] The two protective sleeves 602 are each provided with a mounting groove 604 that matches the support plate 601 for installation.

[0030] Two fixing rods 111 are provided on one side of the mounting plate 1. A first mounting sleeve 112 is provided at one end of the two fixing rods 111. A second mounting sleeve 113 is provided on one side of the first mounting sleeve 112. The first mounting sleeve 112 and the second mounting sleeve 113 are mounted on the trunk behind the forelimbs of the tree shrew.

[0031] A first connecting block 1121 is provided on both sides of the first mounting sleeve 112, and a second connecting block 1131 is provided on both sides of the second mounting sleeve 113. The two second connecting blocks 1131 are respectively fixedly connected to the corresponding first connecting blocks 1121 by bolts to fix the first mounting sleeve 112 and the second mounting sleeve 113.

[0032] A reinforcement block 114 is provided on one side corresponding to the two fixing rods 111 . One side of the reinforcement block 114 is fixedly connected to the surface of the first mounting sleeve 112 , thereby improving the firmness of the connection between the fixing rod 111 and the first mounting sleeve 112 .

[0033] When in use, first put the first installation sleeve 112 and the second installation sleeve 113 on the trunk of the tree shrew's forelimbs, and extend the two support plates 601 into the mouth of the tree shrew, with the protective sleeve 602 located in the center of the mouth, and fix the first connecting block 1121 and the second connecting block 1131 by bolts, thereby completing the installation of the first installation sleeve 112 and the second installation sleeve 113. In order to open the mouth of the experimental tree shrew, the staff holds the two grips 91 and applies pressure inward. The grips 91 are connected to the connecting shaft 2 through the support rod 8, and the connecting shaft 2 drives the connecting rod 4 to rotate outward. At the same time, a gear 3 is provided in the middle of the two connecting shafts 2. The two gears are used to rotate the connecting rod 4 outward. The wheels 3 are meshed and connected, so that the two connecting rods 4 rotate outward synchronously. When the connecting rod 4 moves, it drives the connecting arm 5 to move synchronously. The connecting arm 5 drives the synchronous movement of the support plate 601 connected thereto. The tree shrew's mouth is opened by opening and closing the two support plates 601. By controlling the pressure applied by the two grips 91, the opening and closing size of the two support plates 601 can be controlled. The adjustment process is convenient and efficient, and the operation is safer. In order to protect the tree shrew's mouth, a protective cover 602 is provided above the support plate 601. The protective cover 602 is made of silicone material, which can reduce the damage to the tree shrew's mouth caused by long-term opening operation. The rubber particles 603 on the surface of the protective cover 602 can improve the anti-slip property of contact with the inner wall of the mouth.

[0034] In order to fix the opening and closing angles of the two support plates 601, the limiting ring 94 is rotated to 180 degrees, and the top of the limiting ring 94 is inserted into the limiting groove 95. Under the action of the elastic force of the reset spring 93, the two support plates 601 and the protective cover 602 are always in the open and closed state, which is convenient for subsequent observation operations. In order to close the two support plates 601, the limiting ring 94 is disengaged from the limiting groove 95. Similarly, under the action of the elastic force of the reset spring 93, the two support plates 601 can be automatically closed.

[0035] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An experimental tree shrew oral opening device, comprising a mounting plate (1), characterized in that: The surface of the mounting plate (1) is rotatably connected to two connecting shafts (2), a gear (3) is provided in the middle of the connecting shaft (2), and the two gears (3) are meshed and connected. A connecting rod (4) is provided at one end of the connecting shaft (2), a connecting arm (5) is provided at one end of the connecting rod (4), a spreading assembly (6) is provided at one end of the two connecting arms (5), a support rod (8) is provided at the other end of the connecting shaft (2), and an adjustment assembly (9) is provided at one end of the two support rods (8).

2. The oral opening device for tree shrews according to claim 1, characterized in that: Two fixing rods (111) are provided on one side of the mounting plate (1), a first mounting sleeve (112) is provided at one end of the two fixing rods (111), and a second mounting sleeve (113) is provided on one side of the first mounting sleeve (112).

3. The experimental tree shrew oral opening device according to claim 2, characterized in that: A first connecting block (1121) is provided on both sides of the first mounting sleeve (112), and a second connecting block (1131) is provided on both sides of the second mounting sleeve (113), and the two second connecting blocks (1131) are respectively fixedly connected to the corresponding first connecting blocks (1121) by bolts.

4. The experimental tree shrew oral opening device according to claim 2, characterized in that: A reinforcement block (114) is provided on one side corresponding to each of the two fixing rods (111), and one side of the reinforcement block (114) is fixedly connected to the surface of the first mounting sleeve (112).

5. The experimental tree shrew oral opening device according to claim 1, characterized in that: The support assembly (6) comprises two support plates (601), two protective sleeves (602) and a plurality of rubber particles (603). The two support plates (601) are respectively arranged at one end of two connecting arms (5). A protective sleeve (602) is provided on one side of the surface of the support plate (601), and a plurality of rubber particles (603) are evenly spaced on the surface of the protective sleeve (602).

6. The experimental tree shrew oral opening device according to claim 5, characterized in that: One side corresponding to the two protective sleeves (602) is provided with a mounting groove (604) matching the support plate (601).

7. The experimental tree shrew oral cavity opening device according to claim 1, characterized in that: The adjustment assembly (9) comprises two gripping rods (91), a connecting groove (92) and a return spring (93). The two gripping rods (91) are respectively arranged at one end of the two support rods (8). The corresponding sides of the two gripping rods (91) are each provided with a connecting groove (92). A return spring (93) is arranged between the two connecting grooves (92).

8. The experimental tree shrew oral cavity opening device according to claim 7, characterized in that: One end of one of the gripping rods (91) is rotatably connected to a limiting ring (94), and a limiting groove (95) is provided at the top end of the other gripping rod (91).

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