Telescopic animal anus temperature thermometer

Abstract

The utility model relates to a telescopic animal anus temperature thermometer. Comprising a support, the top of the support is fixedly connected with an installation detection table with an installation through groove formed in the middle, and a four-limb fixing device of a telescopic structure is arranged in the installation through groove and used for binding four limbs of an experimental animal; a trunk fixing device with a lockable position is arranged in the mounting through groove in a sliding manner and is used for binding the buttocks of the experimental animal; the head fixing device is mounted on the mounting detection table, the transverse position of the head fixing device can be adjusted, and the head fixing device and the trunk fixing device are arranged on the two sides of the limb fixing device respectively; the clamping and propelling device is arranged on the outer side of the trunk fixing device and used for clamping the thermometer and driving the thermometer to rotate and propel towards the experimental animal; and the height adjusting device is used for adjusting the vertical position of the clamping and propelling device. According to the animal body temperature measuring device, an animal can be firmly fixed in the measuring process, then the body temperature of the animal can be accurately detected, and the animal is prevented from being injured or biting experimenters in the measuring process.

Description

Technical Field

[0001] The utility model belongs to the technical field of vaccine production equipment, and particularly relates to a retractable animal rectal thermometer. Background Technique

[0002] Body temperature is one of the indicators to judge the health status of animals and is also one of the most important vital signs of animals. During the production process of animal vaccines, it is often necessary to regularly detect the body temperature of experimental animals. As a common experimental animal, rabbits are widely used in the field of animal vaccine production. Therefore, during the experiment, it is usually necessary to measure the body temperature of rabbits to obtain experimental indicators, and the body temperature of rabbits is measured by measuring their rectal temperature.

[0003] When measuring rectal temperature, the thermometer needs to be inserted into the anus of the rabbit and kept for a certain period of time to obtain a stable and accurate temperature reading. During the actual operation, the experimenter needs to hold the rabbit firmly with one hand, then insert the detection end of the thermometer into the rectum of the rabbit for a certain distance and keep it for a period of time. After the detection data of the thermometer is stable, the thermometer is taken out for reading. Since the above rectal temperature detection method requires the experimenter to use one hand to hold the rabbit during the implementation process, only the other hand can be used to insert the detection end of the thermometer into the rectum of the rabbit when measuring the body temperature of the rabbit.

[0004] However, during the process of measuring rectal temperature, the rabbit may twist its body and kick its legs due to instinctive stress response, making it very difficult to perform the operation of measuring rectal temperature with one hand. The operation is difficult, and it is impossible to avoid measurement failure caused by the rabbit's twisting and other reasons. Moreover, when the rabbit has a stress response, the rabbit may bite the experimenter's hand, resulting in poor safety. Therefore, it is urgent to design a retractable animal rectal thermometer to solve the above problems. Content of the Utility Model

[0005] The utility model provides a retractable animal rectal thermometer with reasonable structural design and convenient operation to solve the technical problems existing in the known technology. The utility model can firmly fix the animal during the measurement process, and then accurately detect its body temperature, avoiding damage to the animal or the animal biting the experimenter during the measurement process.

[0006] The technical solution adopted by the present utility model to solve the technical problems existing in the known technology is as follows: A retractable animal rectal thermometer includes a bracket. At the top of the bracket, an installation and detection table with an installation through groove in the middle is fixedly connected. In the installation through groove, a four-limbed fixing device with a retractable structure is arranged for binding the four limbs of the experimental animal. A trunk fixing device with a lockable position is slidably arranged in the installation through groove for binding the buttocks of the experimental animal. It also includes a head fixing device with an adjustable horizontal position installed on the installation and detection table. The head fixing device and the trunk fixing device are respectively arranged on both sides of the four-limbed fixing device. It further includes a clamping and pushing device arranged on the outer side of the trunk fixing device for clamping the thermometer and driving the thermometer to rotate and push towards the experimental animal. It also includes a height adjusting device for adjusting the vertical position of the clamping and pushing device.

[0007] The advantages and positive effects of the present utility model are as follows: The present utility model provides a retractable animal rectal thermometer. By setting the four-limbed fixing device, the four limbs of the experimental animal can be fixed. The four-limbed fixing device has a retractable structure, enabling it to be adjusted according to the size of the experimental animal, with strong applicability. By setting the head fixing device with an adjustable horizontal position, the head of the experimental animal can be fixed. By setting the trunk fixing device with an adjustable position, the buttocks of the experimental animal can be fixed, ultimately achieving the purpose of fixing the experimental animal, avoiding measurement failure caused by the experimental animal wriggling, and also avoiding being bitten by the experimental animal when the staff manually fixes the animal, with strong safety. By setting the clamping and pushing device, the thermometer can be clamped and driven to rotate and push towards the experimental animal. By setting the height adjusting device, the height of the clamping and pushing device and the thermometer clamped by it can be adjusted, enabling the thermometer to be aligned with the anus of the experimental animal, thereby facilitating the rectal temperature measurement operation on the fixed animal. The operation process is simple, convenient, and has strong safety.

[0008] Preferably: The clamping and pushing device includes a transverse movement driving component installed on the mobile end of the height adjusting device. A horizontally arranged rotating shaft is rotatably connected to the mobile end of the movement driving component. A rotating mounting disc is installed at the inner end of the rotating shaft. An installation sleeve is installed on the inner end face of the rotating mounting disc. In the inner cavity of the installation sleeve, a plurality of clamping soft blocks with elasticity and circumferentially distributed are installed. Each clamping soft block has an arc-shaped structure. It also includes a motor seat installed on the mobile end of the movement driving component. A rotating motor is fixedly connected to the motor seat. A belt pulley transmission pair is installed between the output shaft of the rotating motor and the rotating shaft.

[0009] Preferably, the lateral movement driving assembly includes a base installed on the mobile end of the height adjusting device. Two sets of advancing guide rails arranged horizontally are fixedly connected to the base. An advancing mounting seat is slidably connected between the two sets of advancing guide rails through a slider. The advancing driving assembly further includes an advancing cylinder installed on the mobile end of the height adjusting device, and the extending end of the advancing cylinder is connected to the advancing mounting seat.

[0010] Preferably, the height adjusting device includes a mounting base fixedly connected to the bracket. Two sets of adjusting guide rails arranged longitudinally are fixedly connected to the mounting base. A lifting mounting seat is slidably connected between the two sets of adjusting guide rails through a slider. The height adjusting device further includes a longitudinally arranged adjusting lead screw rotatably connected to the mounting base. The lifting mounting seat is connected to the adjusting lead screw through a nut. The height adjusting device further includes a handwheel installed at the lower end of the adjusting lead screw.

[0011] Preferably, the four - limb fixing device includes two sets of oppositely arranged distance - adjusting moving plates slidably penetrating through the mounting through - slots. I - shaped guide rails are fixedly connected to both ends of each distance - adjusting moving plate. Band sliders are slidably connected to each I - shaped guide rail. Limb bands and corresponding buckles are installed on each band slider. Bolts for positioning the band sliders are screwed on the band sliders. The four - limb fixing device further includes an intermediate mounting block fixedly connected to the mounting inspection table and located between the two sets of distance - adjusting moving plates. A rotating mounting rod is pivotally connected to the intermediate mounting block through a pin shaft. Swing mounting arms are pivotally connected between the end of the rotating mounting rod and each distance - adjusting moving plate. The four - limb fixing device further includes a linear cylinder installed between one set of distance - adjusting moving plates and the intermediate mounting block.

[0012] Preferably, the torso fixing device includes a movable position - adjusting block slidably penetrating through the mounting through - slot and having a fixed position. A positive and negative lead screw rotatably connected to the movable position - adjusting block is arranged inside the movable position - adjusting block. The extending direction of the positive and negative lead screw is consistent with the width direction of the mounting inspection table. Two sets of band stretching blocks respectively arranged on both sides of the movable position - adjusting block and screwed on the positive and negative lead screw are included. A plurality of torso bands are installed between the two sets of band stretching blocks. The torso fixing device further includes a handwheel installed at the end of the positive and negative lead screw.

[0013] Preferably, the head fixing device includes a head fixing seat slidably connected to the mounting inspection table. The head fixing seat has a square - shaped structure. Two sets of longitudinally arranged longitudinal guide rods are fixedly connected to the head fixing seat. A relatively arranged lower saddle - shaped sleeve and an upper saddle - shaped sleeve are slidably connected between the two sets of longitudinal guide rods. The head fixing device further includes a longitudinally arranged sleeve adjusting lead screw screwed on the head fixing seat. The lower end of the sleeve adjusting lead screw is movably connected to the upper saddle - shaped sleeve. The head fixing device further includes a laterally arranged lateral movement lead screw screwed on the mounting inspection table. The inner end of the lateral movement lead screw is movably connected to the head fixing seat. Description of the Drawings

[0014] Figure 1 is a three - dimensional structural schematic diagram of the present utility model;

[0015] Figure 2 It is a three-dimensional structural schematic diagram of the head fixing device in the present utility model;

[0016] Figure 3 It is a three-dimensional structural schematic diagram of the limb fixing device in the present utility model;

[0017] Figure 4 It is a three-dimensional structural schematic diagram of the torso fixing device in the present utility model;

[0018] Figure 5 It is a three-dimensional structural schematic diagram of the height adjustment device and the clamping and pushing device in the present utility model;

[0019] Figure 6 It is a three-dimensional structural schematic diagram of the clamping and pushing device in the present utility model.

[0020] In the figure: 1, installation through groove; 2, height adjustment device; 2-1, lifting installation seat; 2-2, installation base; 2-3, adjustment lead screw; 2-4, adjustment guide rail; 3, clamping and pushing device; 3-1, pushing installation seat; 3-2, pushing cylinder; 3-3, pushing guide rail; 3-4, rotating shaft; 3-5, rotating motor; 3-6, motor seat; 3-7, rotating installation disc; 3-8, belt pulley transmission pair; 3-9, installation sleeve; 3-10, clamping soft block; 4, torso fixing device; 4-1, strap stretching block; 4-2, moving adjustment block; 4-3, positive and negative lead screw; 4-4, torso strap; 5, limb fixing device; 5-1, I-shaped guide rail; 5-2, strap slider; 5-3, distance adjustment moving plate; 5-4, limb strap; 5-5, intermediate installation block; 5-6, rotating installation rod; 5-7, linear cylinder; 5-8, swinging installation arm; 6, installation detection table; 7, head fixing device; 7-1, transverse movement lead screw; 7-2, lower saddle-shaped bushing; 7-3, upper saddle-shaped bushing; 7-4, longitudinal guide rod; 7-5, head fixing seat; 7-6, bushing adjustment lead screw; 8, bracket. Specific embodiments

[0021] To further understand the invention content, features and effects of the present utility model, the following embodiments are hereby given in detail as follows:

[0022] Please refer to Figure 1, the retractable animal rectal thermometer of the present utility model includes a bracket 8. At the top of the bracket 8, there is fixedly connected an installation and detection table 6 with an installation through groove 1 opened in the middle. In the installation through groove 1, there is provided a four - limb fixing device 5 with a retractable structure for tying the four limbs of an experimental animal. A trunk fixing device 4 with a lockable position is slidably arranged in the installation through groove 1 for tying the buttocks of the experimental animal. It also includes a head fixing device 7 with an adjustable horizontal position installed on the installation and detection table 6. The head fixing device 7 and the trunk fixing device 4 are respectively arranged on both sides of the four - limb fixing device 5. This embodiment also includes a clamping and pushing device 3 arranged on the outside of the trunk fixing device 4 for clamping the thermometer and driving the thermometer to rotate and push towards the experimental animal. It also includes a height - adjusting device 2 for adjusting the vertical position of the clamping and pushing device 3.

[0023] As Figure 3 shown, the above - mentioned four - limb fixing device 5 includes two sets of oppositely arranged distance - adjusting moving plates 5 - 3 slidably penetrating through the installation through groove 1. At both ends of each distance - adjusting moving plate 5 - 3, there is fixedly connected an I - shaped guide rail 5 - 1. On each I - shaped guide rail 5 - 1, there is slidably connected a strap slider 5 - 2. On each strap slider 5 - 2, there is installed a four - limb strap 5 - 4 and a buckle corresponding to the four - limb strap 5 - 4. In addition, a bolt for positioning it is screwed on the strap slider 5 - 2. The four - limb fixing device 5 also includes an intermediate installation block 5 - 5 fixedly connected to the installation and detection table 6 and located between the two sets of distance - adjusting moving plates 5 - 3. On the intermediate installation block 5 - 5, there is pivotally connected a rotating installation rod 5 - 6 through a pin shaft. Between the end of the rotating installation rod 5 - 6 and each distance - adjusting moving plate 5 - 3, there is pivotally connected a swinging installation arm 5 - 8. The above - mentioned two sets of swinging installation arms 5 - 8 are symmetrically arranged about the pivotal connection point of the rotating installation rod 5 - 6 and the intermediate installation block 5 - 5. The four - limb fixing device 5 also includes a linear cylinder 5 - 7 installed between a set of distance - adjusting moving plates 5 - 3 and the intermediate installation block 5 - 5. Among them, the extending end of the above - mentioned linear cylinder 5 - 7 is connected to the intermediate installation block 5 - 5, and the cylinder barrel of the linear cylinder 5 - 7 is connected to the distance - adjusting moving plate 5 - 3.

[0024] Further referring to Figure 2, the above-mentioned head fixing device 7 includes a head fixing base 7-5 slidably connected to the installation and detection table 6, and the head fixing base 7-5 has a rectangular structure. Further, sliders are provided at the bottom of the head fixing base 7-5, and sliding grooves that slidably cooperate with the sliders are formed on the installation and detection table 6. Further, two sets of longitudinally arranged longitudinal guide rods 7-4 are fixedly connected to the head fixing base 7-5, and a relatively arranged lower saddle-shaped bushing 7-2 and an upper saddle-shaped bushing 7-3 are slidably connected between the two sets of longitudinal guide rods 7-4; it also includes a longitudinally arranged bushing adjusting lead screw 7-6 screwed onto the head fixing base 7-5, a handwheel is installed at the upper end of the bushing adjusting lead screw 7-6, and the lower end of the bushing adjusting lead screw 7-6 is movably connected to the upper saddle-shaped bushing 7-3; the head fixing device 7 further includes a laterally arranged transverse movement lead screw 7-1 screwed onto the installation and detection table 6, the inner end of the transverse movement lead screw 7-1 is movably connected to the head fixing base 7-5, and in addition, handwheels are installed at the outer ends of the respective transverse movement lead screws 7-1.

[0025] As Figure 4 shown, the above-mentioned torso fixing device 4 includes a moving adjustment block 4-2 slidably penetrating through the installation through slot 1 and whose position can be fixed. As Figure 1 shown, strip-shaped holes are formed on the installation and detection table 6 along its length direction, and the moving adjustment block 4-2 is locked and connected to the installation and detection table 6 through bolts and lock nuts penetrating through the strip-shaped holes. A forward and reverse lead screw 4-3 rotatably connected to it is penetrated through the moving adjustment block 4-2, and the extending direction of the forward and reverse lead screw 4-3 is consistent with the width direction of the installation and detection table 6. The torso fixing device 4 further includes two sets of strap stretching blocks 4-1 respectively arranged on both sides of the moving adjustment block 4-2 and screwed onto the forward and reverse lead screw 4-3, and several torso straps 4-4 are installed between the two sets of strap stretching blocks 4-1; it also includes a handwheel installed at the end of the forward and reverse lead screw 4-3. During the actual working process, manually rotating the forward and reverse lead screw 4-3 can drive the two sets of strap stretching blocks 4-1 to move synchronously towards each other or synchronously away from each other. When the two sets of strap stretching blocks 4-1 move away from each other, several torso straps 4-4 are in a straightened state, and thus the torso of the experimental animal can be fixed. When the two sets of strap stretching blocks 4-1 move towards each other, several torso straps 4-4 can be in a relaxed state, releasing the bundling and fixing of the torso of the experimental animal.

[0026] For further reference, see Figure 5 and Figure 6, the above clamping and pushing device 3 includes a transverse movement driving component installed on the mobile end of the height adjustment device 2. A horizontally arranged rotating shaft 3-4 is rotatably connected to the mobile end of the transverse movement driving component. A rotating mounting disc 3-7 is installed at the inner end of the rotating shaft 3-4. An installation sleeve 3-9 is installed on the inner end face of the rotating mounting disc 3-7. A plurality of groups of clamping soft blocks 3-10 that are circumferentially distributed and elastic are installed in the inner cavity of the installation sleeve 3-9. Each clamping soft block 3-10 has an arc-shaped structure. During operation, the thermometer of the test experimental animal is inserted into the center surrounded by the plurality of groups of clamping soft blocks 3-10.

[0027] The clamping and pushing device 3 further includes a motor base 3-6 installed on the mobile end of the transverse movement driving component. A rotating motor 3-5 is fixedly connected to the motor base 3-6. A belt pulley transmission pair 3-8 is installed between the output shaft of the rotating motor 3-5 and the rotating shaft 3-4. The belt pulley transmission pair 3-8 includes a driving belt pulley key-connected to the output shaft of the rotating motor 3-5, and also includes a driven belt pulley key-connected to the rotating shaft 3-4. A belt is drivingly connected between the driving belt pulley and the driven belt pulley.

[0028] Further, the above transverse movement driving component includes a base installed on the mobile end of the height adjustment device 2. Two groups of propulsion guide rails 3-3 arranged horizontally are fixedly connected to the base. A propulsion mounting seat 3-1 is slidably connected between the two groups of propulsion guide rails 3-3 through a slider. It also includes a propulsion cylinder 3-2 installed on the mobile end of the height adjustment device 2. The extending end of the propulsion cylinder 3-2 is connected to the propulsion mounting seat 3-1. A floating joint is installed at the extending end of the propulsion cylinder 3-2 and is connected to the propulsion mounting seat 3-1 through the floating joint. Among them, the above motor base 3-6 is fixedly installed on the propulsion mounting seat 3-1, and the rotating shaft 3-4 is rotatably connected to the propulsion mounting seat 3-1 through a pedestal bearing.

[0029] For further reference Figure 5 , the above height adjustment device 2 includes a mounting base 2-2 fixedly connected to the bracket 8. Two groups of adjustment guide rails 2-4 arranged longitudinally are fixedly connected to the mounting base 2-2. A lifting mounting seat 2-1 is slidably connected between the two groups of adjustment guide rails 2-4 through a slider. The above transverse movement driving component is installed on the lifting mounting seat 2-1. The height adjustment device 2 further includes a longitudinally arranged adjustment lead screw 2-3 rotatably connected to the mounting base 2-2. The lifting mounting seat 2-1 is connected to the adjustment lead screw 2-3 through a lead screw nut. It also includes a handwheel installed at the lower end of the adjustment lead screw 2-3.

[0030] Operating method:

[0031] Place the experimental animal (such as a rabbit) on the installation test bench 6, start the linear cylinder 5-7 in the four-limb fixing device 5, so that the two groups of distance-adjusting moving plates 5-3 move to the positions suitable for binding the four limbs of the experimental animal, and then use each four-limb strap 5-4 in the four-limb fixing device 5 to perform the binding operation on the four limbs of the experimental animal; then adjust the horizontal position of the head fixing device 7 to facilitate the staff to place the head of the experimental animal between the upper saddle-shaped sleeve 7-3 and the lower saddle-shaped sleeve 7-2, and then rotate the sleeve adjusting lead screw 7-6 to make the upper saddle-shaped sleeve 7-3 move downward, and use the lower saddle-shaped sleeve 7-2 and the upper saddle-shaped sleeve 7-3 to achieve the purpose of fixing the head of the experimental animal; then move the horizontal position of the torso fixing device 4. At this time, the distance between the two strap stretching blocks 4-1 in the torso fixing device 4 is at the minimum value, so that several torso straps 4-4 are in a relaxed state. After the torso fixing device 4 moves to the position where it can cover the buttocks of the experimental animal, lock the position of the torso fixing device 4, and then rotate the positive and negative lead screw 4-3 in the torso fixing device 4 to make the two strap stretching blocks 4-1 move away from each other, tighten several torso straps 4-4, and achieve the purpose of fixing the buttocks of the experimental animal, and finally achieve the purpose of fixing the head, four limbs and buttocks of the experimental animal;

[0032] After the fixation of the experimental animal is completed, manually rotate the adjusting lead screw 2-3 in the height adjusting device 2 to adjust the height of the clamping and pushing device 3, so that the thermometer installed on the clamping and pushing device 3 is directly opposite the anus of the experimental animal; then start the pushing cylinder 3-2 and the rotating motor 3-5 in the clamping and pushing device 3, and then drive the thermometer to rotate and push towards the buttocks of the experimental animal, so that the thermometer slowly rotates and inserts 1-2 cm into the anus of the experimental animal and stays for a period of time. After the temperature measurement data of the thermometer is stable, the pushing cylinder 3-2 retracts and then the thermometer is taken out for reading.

Claims

1. A retractable animal rectal thermometer, characterized in that: It includes a bracket (8), on the top of the bracket (8) is fixedly connected with an installation and detection table (6) with an installation through groove (1) opened in the middle. Inside the installation through groove (1), there is a four - limb fixing device (5) with a telescopic structure for binding the four limbs of the experimental animal; in the installation through groove (1), there is a trunk fixing device (4) with a lockable position, which is used for binding the buttocks of the experimental animal; it also includes a head fixing device (7) with an adjustable horizontal position installed on the installation and detection table (6), and the head fixing device (7) and the trunk fixing device (4) are respectively arranged on both sides of the four - limb fixing device (5); it also includes a clamping and pushing device (3) arranged on the outside of the trunk fixing device (4) for clamping the thermometer and driving the thermometer to rotate and push towards the experimental animal; it also includes a height - adjusting device (2) for adjusting the vertical position of the clamping and pushing device (3).

2. The retractable animal rectal thermometer according to claim 1, characterized in that: The clamping and pushing device (3) includes a transverse movement driving component installed on the mobile end of the height - adjusting device (2). On the mobile end of the transverse movement driving component, there is a horizontally arranged rotating shaft (3 - 4) rotatably connected. At the inner end of the rotating shaft (3 - 4), there is a rotating mounting disc (3 - 7). On the inner end face of the rotating mounting disc (3 - 7), there is an installation sleeve (3 - 9). Inside the cavity of the installation sleeve (3 - 9), there are multiple groups of clamping soft blocks (3 - 10) distributed circumferentially and having elasticity, and each clamping soft block (3 - 10) has an arc - shaped structure; it also includes a motor base (3 - 6) installed on the mobile end of the transverse movement driving component. On the motor base (3 - 6), there is a rotating motor (3 - 5) fixedly connected. Between the output shaft of the rotating motor (3 - 5) and the rotating shaft (3 - 4), there is a belt - pulley transmission pair (3 - 8).

3. The retractable animal rectal thermometer according to claim 2, wherein: The transverse movement driving component includes a base installed on the mobile end of the height - adjusting device (2). On the base, there are two groups of transverse propulsion guide rails (3 - 3) fixedly connected. Between the two groups of transverse propulsion guide rails (3 - 3), there is a propulsion mounting seat (3 - 1) slidably connected through a slider. It also includes a propulsion cylinder (3 - 2) installed on the mobile end of the height - adjusting device (2), and the extending end of the propulsion cylinder (3 - 2) is connected to the propulsion mounting seat (3 - 1).

4. The retractable animal rectal thermometer according to claim 1, characterized in that: The height - adjusting device (2) includes an installation base (2 - 2) fixedly connected to the bracket (8). On the installation base (2 - 2), there are two groups of longitudinal adjusting guide rails (2 - 4) fixedly connected. Between the two groups of longitudinal adjusting guide rails (2 - 4), there is a lifting mounting seat (2 - 1) slidably connected through a slider. It also includes a longitudinally arranged adjusting lead screw (2 - 3) rotatably connected to the installation base (2 - 2). The lifting mounting seat (2 - 1) is connected to the adjusting lead screw (2 - 3) through a nut. It also includes a handwheel installed at the lower end of the adjusting lead screw (2 - 3).

5. The retractable animal rectal thermometer according to claim 1, characterized in that: The four - limb fixing device (5) includes two sets of oppositely - arranged distance - adjusting moving plates (5 - 3) slidably inserted into the installation through - slot (1). At both ends of each distance - adjusting moving plate (5 - 3), an I - shaped guide rail (5 - 1) is fixedly connected. A strap slider (5 - 2) is slidably connected to each I - shaped guide rail (5 - 1). An extremity strap (5 - 4) and a buckle corresponding to the extremity strap (5 - 4) are installed on each strap slider (5 - 2). A bolt for positioning the strap slider (5 - 2) is screwed on the strap slider (5 - 2). It also includes an intermediate mounting block (5 - 5) fixedly connected to the installation inspection table (6) and located between the two sets of distance - adjusting moving plates (5 - 3). A rotating mounting rod (5 - 6) is pivotally connected to the intermediate mounting block (5 - 5) through a pin shaft. A swinging mounting arm (5 - 8) is pivotally connected between the end of the rotating mounting rod (5 - 6) and each distance - adjusting moving plate (5 - 3). It also includes a linear cylinder (5 - 7) installed between one set of distance - adjusting moving plates (5 - 3) and the intermediate mounting block (5 - 5).

6. The retractable animal rectal thermometer according to claim 1, characterized in that: The torso fixing device (4) includes a movable position - adjusting block (4 - 2) slidably inserted into the installation through - slot (1) and whose position can be fixed. A positive and negative lead screw (4 - 3) rotatably connected to it is inserted into the movable position - adjusting block (4 - 2). The extending direction of the positive and negative lead screw (4 - 3) is the same as the width direction of the installation inspection table (6). It also includes two sets of strap stretching blocks (4 - 1) screwed on the positive and negative lead screw (4 - 3) and respectively arranged on both sides of the movable position - adjusting block (4 - 2). A number of torso straps (4 - 4) are installed between the two sets of strap stretching blocks (4 - 1). It also includes a hand wheel installed at the end of the positive and negative lead screw (4 - 3).

7. The retractable animal rectal thermometer according to claim 1, characterized in that: The head fixing device (7) includes a head fixing base (7 - 5) slidably connected to the installation inspection table (6). The head fixing base (7 - 5) has a square - shaped structure. Two sets of longitudinally - arranged longitudinal guide rods (7 - 4) are fixedly connected to the head fixing base (7 - 5). A relatively - arranged lower saddle - shaped bushing (7 - 2) and an upper saddle - shaped bushing (7 - 3) are slidably connected between the two sets of longitudinal guide rods (7 - 4). It also includes a longitudinally - arranged bushing adjusting lead screw (7 - 6) screwed on the head fixing base (7 - 5). The lower end of the bushing adjusting lead screw (7 - 6) is movably connected to the upper saddle - shaped bushing (7 - 3). It also includes a transversely - arranged transverse movement lead screw (7 - 1) screwed on the installation inspection table (6). The inner end of the transverse movement lead screw (7 - 1) is movably connected to the head fixing base (7 - 5).

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