Animal restraint device

Abstract

The application provides an animal restraint device, which can include a bearing table, a restraint plate and a restraint belt. The restraint plate is installed on the bearing table and has a restraint hole group, which includes two restraint holes arranged at intervals. The restraint holes have a first sub-hole part and a second sub-hole part in communication. The restraint belt is configured to be movable in the axial direction of the restraint hole relative to the restraint plate when the end thereof penetrates the first sub-hole part of the restraint hole, and to be limited by the restraint plate in the axial direction of the restraint hole when the end thereof penetrates the second sub-hole part of the restraint hole. The end of the restraint belt can penetrate the same restraint hole between the first sub-hole part and the second sub-hole part. The above technical solution can restrain the behavior of an animal.

Description

Technical Field

[0001] This invention relates to the field of animal experimental equipment technology, and more particularly to an animal restraint device. Background Technology

[0002] In biomedical research, animals (such as rats and mice) are needed to assist in experimental studies. To avoid operational accidents caused by animal movement during drug administration (such as injection), it is necessary to restrain the behavior of animals. Summary of the Invention

[0003] In view of this, the present invention provides an animal restraint device capable of restraining the behavior of animals.

[0004] To solve the above-mentioned technical problems, the present invention provides an animal restraint device, comprising: Support platform; A constraint plate, mounted on the support platform, has a constraint hole group, the constraint hole group including two constraint holes spaced apart, the constraint hole having a first sub-hole portion and a second sub-hole portion that are connected. The constraint band, configured such that when its end passes through the first sub-hole portion of the constraint hole, it is movable relative to the constraint plate in the axial direction of the constraint hole, and when its end passes through the second sub-hole portion of the constraint hole, it is restricted by the constraint plate in the axial direction of the constraint hole, and is also configured such that its end is capable of switching the object it passes through between the first sub-hole portion and the second sub-hole portion of the same constraint hole; When the two ends of the constraint band pass through the two second sub-holes of the constraint hole group, the constraint band can work with the constraint plate to restrain the animal.

[0005] Optionally, the animal restraint device further includes: A constraint cover is mounted on a constraint plate and forms a constraint channel extending in a first direction with the constraint plate. The constraint cover has a first strip hole that extends circumferentially along the constraint cover, and the projection of the first strip hole on the constraint plate extends in a second direction. Wherein, the first direction is perpendicular to the second direction, the line connecting the two constraint holes in the constraint hole group is in the same direction as the second direction, and the two ends of the constraint band can pass through the two constraint holes of the constraint hole group through the first strip hole respectively.

[0006] Optionally, the constraint cover includes: Two connecting parts, each of which is a strip-shaped structure extending along the first direction, and is detachably connected to the constraint plate; The top cover is an arc-shaped structure extending along the first direction, and the top cover is fixedly connected to two connecting parts on both sides along the second direction. The first strip-shaped hole extends circumferentially along the top cover and extends to the connecting portion. A portion of the first strip-shaped hole on the connecting portion is located outside the constraint channel, and the constraint hole group is located within the constraint plate area exposed by this portion of the first strip-shaped hole.

[0007] Optionally, the number of constraint hole groups is multiple, and each constraint hole group is arranged at intervals along the first direction; The first strip hole corresponds one-to-one with the constrained hole group.

[0008] Optionally, the inner diameter of the first sub-hole is larger than the inner diameter of the second sub-hole, and also larger than the inner diameter at the connection point between the first sub-hole and the second sub-hole; The constraint band has a first region and a second region that are alternately distributed along its length, wherein the outer diameter of the first region is larger than the outer diameter of the second region; Wherein, the maximum value of the outer diameter of the first region is less than or equal to the inner diameter of the first sub-hole, the minimum value of the outer diameter of the second region is less than or equal to the inner diameter at the connection position between the first sub-hole and the second sub-hole, the minimum value of the outer diameter of the second region is less than or equal to the inner diameter of the second sub-hole, and the maximum value of the outer diameter of the first region is greater than the inner diameter of the second sub-hole.

[0009] Optionally, the inner diameter at the communication position between the first sub-hole and the second sub-hole is less than or equal to the inner diameter of the second sub-hole.

[0010] Optionally, the first sub-hole portions corresponding to the two constraint holes in the constraint hole group are arranged opposite to each other, and the two first sub-hole portions are located between the two corresponding second sub-hole portions.

[0011] Optionally, the support platform includes: A support plate having a perforation group, wherein the projection of the constraint hole group on the support plate falls into the area where the perforation group is located; The support portion, the top end of which is fixedly connected to the bearing plate; The base is fixedly connected to the bottom end of the support.

[0012] Optionally, the animal restraint device further includes: A positioning block is disposed on the bearing plate and located on one side of the constraint plate in the first direction; The positioning block has a positioning groove located on the surface of the positioning block away from the support plate and extending along the first direction.

[0013] Optionally, the animal restraint device further includes: A guide rail is disposed on the support plate, the guide rail extends along the first direction, and the positioning block further comprises: A guide groove is located on the surface of the positioning block facing the support plate and extends along the first direction. The inner surface of the guide groove abuts against and slides with the outer surface of the guide rail. The positioning block can be adjusted relative to the constraint plate along the first direction.

[0014] Compared with the prior art, the technical solution of the present invention has the following advantages: Using the technical solution of this invention, one end of the restraint strap passes through the first sub-hole of a restraint hole, and then the end is switched to pass through the second sub-hole of the restraint hole. At this time, the end is restricted by the restraint plate in the axial direction of the restraint hole. Next, the animal is placed between the two restraint holes of the restraint hole group, and then the other end of the restraint strap is wrapped around the animal and passed through the first sub-hole of another restraint hole. The length of the end is adjusted until the restraint strength of the restraint strap on the animal meets the requirements. Then, the end is switched to pass through the second sub-hole of the restraint hole so that the end is restricted by the restraint plate in the axial direction of the restraint hole. At this time, the animal is restrained by the cooperation of the restraint strap and the restraint plate. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this specification, the drawings used in the description of the embodiments of this specification or the prior art will be briefly introduced below. Obviously, the drawings described below are only some examples of this specification. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a three-dimensional structural diagram of an animal restraint device according to the present invention; Figure 2 This is a three-dimensional structural diagram of another animal restraint device in this invention; Figure 3 This is an exploded structural diagram of another animal restraint device in this invention; Figure 4 This is a schematic diagram of the structure of a constraint plate in this invention; Figure 5 This is a schematic diagram of the structure of a constraint strap in this invention.

[0017] Explanation of reference numerals in the attached figures: Support platform 100, support plate 110, through hole 111, through hole 112, support part 120, base 130, positioning block 140, positioning groove 141, guide groove 142, guide rail 150; Constraint plate 200, constraint hole 210, first sub-hole portion 211, second sub-hole portion 212, groove 220, insertion hole 230; Constraint band 300, first region 310, second region 320; Constraint cover 400, constraint channel 410, first strip hole 420, top cover part 430, connecting part 440, second strip hole 450; Constraint piece 500; First direction F1, second direction F2. Detailed Implementation

[0018] As is known from the background art, in medical research, animals (such as rats and mice) are needed to assist in experimental research. In order to avoid operational accidents caused by the movement of animals during the administration of drugs (such as injections), it is necessary to restrain the behavior of the animals.

[0019] To address the aforementioned technical problems, this invention provides an animal restraint device. The animal restraint device may include: a support platform, a restraint plate, and a restraint strap. The restraint plate is mounted on the support platform and has a set of restraint holes. The set of restraint holes includes two spaced-apart restraint holes, each with a communicating first sub-hole portion and a second sub-hole portion. The restraint strap is configured such that when its end passes through the first sub-hole portion of the restraint hole, it can move relative to the restraint plate along the axial direction of the restraint hole; and when its end passes through the second sub-hole portion of the restraint hole, its movement relative to the restraint plate along the axial direction of the restraint hole is restricted by the restraint plate. Furthermore, the strap is configured such that its end can switch between passing through the first and second sub-hole portions of the same restraint hole.

[0020] In practical use, one end of the restraint strap is passed through the first sub-hole of a restraint hole, and then the end is switched to pass through the second sub-hole of the restraint hole. At this time, the end is restricted by the restraint plate in the axial direction of the restraint hole. Next, the animal is placed between the two restraint holes of the restraint hole group, and then the other end of the restraint strap is wrapped around the animal and passed through the first sub-hole of another restraint hole. The length of the end is adjusted until the restraint strength of the restraint strap on the animal meets the requirements. Then, the end is switched to pass through the second sub-hole of the restraint hole so that the end is restricted by the restraint plate in the axial direction of the restraint hole. At this time, the animal is restrained by the cooperation of the restraint strap and the restraint plate.

[0021] To enable those skilled in the art to better understand and implement the present invention, the concept, scheme, principle, and advantages of the present invention are described in detail below with reference to the accompanying drawings and specific application examples.

[0022] Figure 1 A three-dimensional structural schematic diagram of an animal restraint device according to the present invention is shown. Figure 2This is a three-dimensional structural diagram of another animal restraint device in this invention. Figure 3 An explosive structural diagram of another animal restraint device according to the present invention is shown. Figure 4 A schematic diagram of the structure of a constraint plate according to the present invention is shown.

[0023] In this embodiment, refer to Figures 1 to 4 Animal restraint devices may include: a support platform 100, a restraint plate 200, and a restraint strap 300.

[0024] The constraint plate 200 is mounted on the support platform 100. The constraint plate 200 has a constraint hole group, which includes two constraint holes 210 spaced apart. Each constraint hole 210 has a first sub-hole portion 211 and a second sub-hole portion 212 that are connected. The constraint band 300 is configured such that when its end passes through the first sub-hole portion 211 of the constraint hole 210, it can move relative to the constraint plate 200 along the axial direction of the constraint hole 210. When its end passes through the second sub-hole portion 212 of the constraint hole 210, it can be restricted by the constraint plate 200 to move relative to the constraint plate 200 along the axial direction of the constraint hole 210. It is also configured such that its end can switch between passing through the first sub-hole portion 211 and the second sub-hole portion 212 of the same constraint hole 210.

[0025] In practical use, one end of the restraint strap 300 is passed through the first sub-hole 211 of a restraint hole 210, and then the end is switched to pass through the second sub-hole 212 of the restraint hole 210. At this time, the end is restricted by the restraint plate 200 in the axial direction of the restraint hole 210. Next, the animal is placed between the two restraint holes 210 of the restraint hole group, and then the other end of the restraint strap 300 is wrapped around the animal and passed through the first sub-hole 211 of another restraint hole 210. The length of the end is adjusted until the restraint strength of the restraint strap 300 on the animal meets the requirements. Then, the end is switched to pass through the second sub-hole 212 of the restraint hole 210 so that the end is restricted by the restraint plate 200 in the axial direction of the restraint hole 210. At this time, the animal is restrained by the cooperation of the restraint strap 300 and the restraint plate 200.

[0026] The rectangular plate structure is used as a specific example in the following description, but it should be noted that this does not constitute a limitation on the specific shape of the constraint plate 200. For example, in other examples, other plate structures such as squares and ellipses can also be used.

[0027] For ease of description, the length direction of the rectangular plate-shaped constraint plate 200 is defined as the first direction F1, and the width direction of the constraint plate 200 is defined as the second direction F2, which is perpendicular to the first direction F1.

[0028] In some examples, refer to Figures 1 to 5The line connecting the two constraint holes 210 in the constraint hole group is aligned with the second direction F2. Thus, the projection of the constraint strap 300 passing through the two constraint holes 210 in the constraint hole group onto the constraint plate 200 is distributed along the second direction F2. When using it to fix an animal, the length direction of the animal's body is aligned with the first direction F1. At this time, the animal is restrained by the cooperation of the constraint strap 300 and the constraint plate 200.

[0029] Figure 5 A schematic diagram of a constraint strap according to the present invention is shown.

[0030] In some examples, refer to Figures 1 to 5 The inner diameter d1 of the first sub-hole portion 211 of the constraint hole 210 is greater than the inner diameter d2 of the second sub-hole portion 212 of the constraint hole 210, and is also greater than the inner diameter d3 at the communication position between the first sub-hole portion 211 and the second sub-hole portion 212; the constraint band 300 has a first region 310 and a second region 320 that are alternately distributed along its length direction, and the outer diameter of the first region 310 of the constraint band 300 is greater than the outer diameter of the second region 320 of the constraint band 300.

[0031] Wherein, the maximum value of the outer diameter of the first region 310 is less than or equal to the inner diameter d1 of the first sub-hole 211, so that the constraint band 300 can pass through the first sub-hole 211 and can move relative to the constraint plate 200 in the axial direction of the constraint hole 210. Wherein, the minimum outer diameter of the second region 320 is less than or equal to the inner diameter d3 at the position where the first sub-hole 211 and the second sub-hole are connected, and the minimum outer diameter of the second region 320 is less than or equal to the inner diameter d2 of the second sub-hole 212, so that the constraint band 300 can enter the second sub-hole 212 from the first sub-hole 211 or enter the first sub-hole 211 from the second sub-hole 212 at the second region 320, so that the constraint band 300 can switch the penetrating object between the first sub-hole 211 and the second sub-hole 212 of the same constraint hole 210; Wherein, the maximum value of the outer diameter of the first region 310 is greater than the inner diameter d2 of the second sub-hole 212, so that when the constraint band 300 passes through the second sub-hole 212 at the second region 320 and moves along the axial direction of the constraint hole 210, the first region 310 can be stuck by the second sub-hole 212, thereby being restricted by the constraint plate 200 in the axial direction of the constraint hole 210.

[0032] In some examples, refer to Figures 1 to 5 The inner diameter d3 at the connection position between the first sub-hole 211 and the second sub-hole 212 is less than or equal to the inner diameter d2 of the second sub-hole 212. This increases the difficulty for the constraint band 300 to enter the connection position from the second sub-hole 212 in the non-active state, thereby reducing the probability of the constraint band 300 automatically releasing its constraint.

[0033] In some examples, refer to Figures 1 to 5 The constraint band 300 is a strip structure made of elastic material, and the initial shape of the constraint band 300 is a straight line. The first sub-hole portions 211 corresponding to the two constraint holes 210 in the constraint hole group are arranged opposite to each other, and the two first sub-hole portions 211 are located between the two corresponding second sub-hole portions 212.

[0034] When the two ends of the constraint band 300 penetrate into the two second sub-hole portions 212 within the constraint hole group, the constraint band 300 will, based on its elasticity, abut against the inner wall of the second sub-hole portion 212 away from the first sub-hole portion 211. This increases the difficulty for the constraint band 300 to enter the connected position from the second sub-hole portion 212 in a non-active state, thereby reducing the probability of the constraint band 300 automatically releasing the constraint.

[0035] In some examples, the restraint strap 300 may be made of at least one of the following materials: nylon, polypropylene, or polyethylene. It should be noted that in other examples, the restraint strap 300 may also be made of materials such as stainless steel.

[0036] It should be noted that for animals that are still able to move before restraint, it is difficult to directly restrain them with restraint straps 300. In this case, it is necessary to first restrain the animal's movement area on restraint board 200.

[0037] In some examples, refer to Figures 1 to 5 Animal restraint devices may also include: restraint cover 400.

[0038] The constraint cover 400 is mounted on the constraint plate 200 and forms a constraint channel 410 extending along the first direction F1 with the constraint plate 200. The constraint cover 400 has a first strip hole 420, which extends circumferentially along the constraint cover 400. The projection of the first strip hole 420 on the constraint plate 200 extends along the second direction F2.

[0039] In practical use, an animal that is still able to move before restraint is inserted into the restraint channel 410. This restrains the animal's movement area on the restraint plate 200 within the restraint channel 410. Then, the two ends of the restraint strap 300 are passed through the first strip hole 420 and through the two restraint holes 210 of the restraint hole group, and the length of the two ends is adjusted until the restraint strap 300 meets the requirements for restraint strength on the animal. It is also ensured that the two ends are restricted by the restraint plate 200. At this time, the animal is restrained by the cooperation of the restraint strap 300 and the restraint plate 200.

[0040] Understandably, the inner diameter of the restraint channel 410 is adapted to the size of the animal (e.g., a size related to its weight) to ensure that the animal's limbs are curled up within the restraint channel 410. In some examples, the inner diameter of the restraint cover 400 (here, the inner diameter) can range from [3cm, 6cm].

[0041] In some examples, the restraint cover 400 may be made of at least one transparent material such as polycarbonate, polymethyl methacrylate, polystyrene, polypropylene, or polyvinyl chloride. This allows for observation of the animal within the restraint channel 410 and adjustment of the animal's posture within the restraint channel 410 based on the observation results to meet the requirements of restraint using the restraint strap 300.

[0042] It should be noted that animal experiments include injections into the animal's torso.

[0043] In some examples, the constraint cover 400 can be mounted on the constraint plate 200 using at least one detachable connection method, such as fitting, bolting, or plugging. For example, as... Figure 3 and Figure 4 The constraint cover 400 has a protrusion (not shown in the figure) on its bottom surface, and a groove 220 is provided on the constraint plate 200. When the constraint cover 400 is installed on the constraint plate 200, the protrusion is embedded in the groove 220 to fix the constraint cover 400 to the constraint plate 200. This allows the constraint cover 400 to be removed from the constraint plate 200 after the animal is restrained by the restraint strap 300 and the constraint plate 200, thereby preventing the constraint cover 400 from obstructing the injection area.

[0044] In some examples, the projection of the first strip hole 420 onto the constraint plate 200 covers the two constraint holes 210 of the constraint hole group. This prevents the two ends of the constraint strap 300 from passing through the two constraint holes 210 of the constraint hole group through the first strip hole 420 and binding the constraint cover 400 to the constraint plate 200, thereby ensuring that the constraint cover 400 can be removed from the constraint plate 200.

[0045] In some examples, refer to Figures 1 to 5 The constraint cover 400 includes a top cover portion 430 and a connecting portion 440.

[0046] The top cover 430 is an arc-shaped structure extending along the first direction F1, and the connecting part 440 is a strip-shaped structure extending along the first direction F1. The top cover 430 is fixedly connected to the two connecting parts 440 on both sides along the second direction F2, for example, integrally formed. The protrusion is located on the bottom surface of each connecting part 440. The first strip hole 420 extends circumferentially along the top cover 430 and extends to the connecting part 440. The portion of the first strip hole 420 on the connecting part 440 is located outside the constraint channel 410, and the constraint hole group is located in the area of ​​the constraint plate 200 exposed by the portion of the first strip hole 420.

[0047] This reduces the chance of the animal covering the restraint hole group in the restraint channel 410, making it easier to pass the two ends of the restraint strap 300 through the first strip hole 420 through the two restraint holes 210 of the restraint hole group.

[0048] In some examples, there are multiple sets of restraint holes, arranged at intervals along the first direction F1. Thus, the restraint strap 300 can select the appropriate restraint hole set based on the animal's body length and restraint location (e.g., forelimbs, waist, or rump), and work in conjunction with the restraint plate 200 to restrain the animal. Here, body length refers to the length of the animal's torso; the head and tail are not included in the body length.

[0049] It should be noted that the number and position of the first strip hole 420 correspond one-to-one with the constraint hole group.

[0050] For ease of description, the distance between the two constraint hole groups located at both ends on the constraint plate 200 in the first direction F1 is defined as the first length in the following text.

[0051] The number of restraint straps 300 can be adjusted according to actual needs. For example, for animals whose body length exceeds the first length, the number of restraint straps 300 can correspond one-to-one with the number of restraint hole groups, thus improving the restraint of the animal. For animals whose body length is less than the first length, the number of restraint straps 300 can be less than the number of restraint hole groups.

[0052] In some examples, the first length can be in the range of [5cm, 20cm].

[0053] As a specific example, for an adult rat with a body length of 12 cm, a constraint plate 200 with a first length of 10 cm and a number of 5 constraint hole groups can be installed on the support platform 100. Alternatively, a constraint cover 400 with an inner diameter of 4 cm and a length of 12 cm can be installed on the constraint plate 200.

[0054] In some examples, refer to Figures 1 to 5 The constraint plate 200 also has: a set of 230 insertion holes and a constraint piece 500.

[0055] The insertion hole group 230 is located on the same side as each constraint hole group in the first direction F1 and is spaced apart from each constraint hole group; the insertion hole group 230 has two insertion holes 230 spaced apart, and the distance between the two insertion holes 230 is less than the distance between the two constraint holes 210 in the constraint hole group. The restraint piece 500 has two insertion parts (not shown in the figure), which are respectively inserted into the two insertion holes 230 of the insertion hole group 230. The area enclosed by the restraint piece 500, the two insertion parts, and the restraint plate 200 is used to restrain the neck of the animal.

[0056] In some examples, refer to Figures 1 to 5 There are multiple sets of insertion holes 230, and the spacing between the two insertion holes 230 in different sets of insertion holes 230 is different to adapt to the necks of animals of different sizes. For example, the spacing between the two insertion holes 230 in the set of insertion holes 230 corresponding to smaller animals is larger than the spacing between the two insertion holes 230 in the set of insertion holes 230 corresponding to larger animals. Correspondingly, the constraint piece 500 corresponds one-to-one with the set of insertion holes 230, and the spacing between the two insertion portions on the constraint piece 500 corresponding to different sets of insertion holes 230 is adapted to the spacing between the two insertion holes 230 in that set of insertion holes 230.

[0057] In some examples, refer to Figures 1 to 5 The constraint cover 400 also has a second strip hole 450.

[0058] The second strip hole 450 extends circumferentially along the constraint cover 400, and the projection of the second strip hole 450 on the constraint plate 200 extends along the second direction F2. The projection of the second strip hole 450 on the constraint plate 200 covers the insertion holes 230 in each group of insertion holes 230.

[0059] When the constraint cover 400 is installed on the constraint plate 200, the constraint piece 500 can enter the constraint channel 410 through the second strip hole 450 and engage with the two insertion holes 230 of the insertion hole 230 group.

[0060] It should be noted that the positional relationship between the second strip hole 450 and each of the first strip holes 420 in the first direction F1 corresponds to the positional relationship between the insertion hole group 230 and each of the constraint hole groups in the first direction F1, which will not be elaborated here.

[0061] In some examples, refer to Figures 1 to 5 The support platform 100 may include a support plate 110, a support part 120 and a base 130.

[0062] The bearing plate 110 is fixedly connected to the top end of the support portion 120. For example, as... Figure 1As shown, the support plate 110 and the support portion 120 can be connected by welding, bonding, or integral molding. For example, the support plate 110 and the support portion 120 can be detachably connected by bolts. This facilitates the replacement of damaged components and reduces maintenance costs.

[0063] The lower end of the support portion 120 is fixedly connected to the base 130. For example, as... Figure 1 As shown, the bottom end of the support 120 and the base 130 can be detachably connected by bolts. This facilitates the replacement of damaged components and reduces maintenance costs. For example, the bottom end of the support 120 and the base 130 can be connected by welding, bonding, or integral molding.

[0064] The rectangular plate structure is used as a specific example in the following description, but it should be noted that this does not constitute a limitation on the specific shape of the support plate 110. For example, in other examples, the support plate 110 may also be a plate structure of other shapes such as square or elliptical.

[0065] It should be noted that the length direction of the support plate 110 with the rectangular plate structure is consistent with the first direction F1, and the width direction of the support plate 110 is consistent with the second direction F2.

[0066] In some examples, the constraint plate 200 can be mounted on the support plate 110 using at least one detachable connection method, such as fitting, bolting, or plugging. For example, Figure 1 As shown, the bottom surface of the constraint plate 200 has studs (not shown in the figure), and the support plate 110 has through holes 111. When the constraint plate 200 is installed on the support plate 110, the studs pass through the through holes 111 and are fixed by nuts. This allows for the replacement of constraint plates 200 of different sizes to accommodate animals of different sizes. In other examples, the constraint plate 200 can be installed on the support plate 110 by welding, bonding, or integral molding.

[0067] In some examples, refer to Figures 1 to 5 The support plate 110 has a perforation group, and the projection of the constraint hole group on the support plate 110 falls into the area where the perforation group is located. In this way, after the end of the constraint band 300 passes through the first sub-hole portion 211 of a constraint hole 210, it can pass through the support plate 110 through the perforation group corresponding to the first sub-hole portion 211.

[0068] In some examples, the perforation group can have multiple configuration options. For example, such as... Figures 1 to 5As shown, the perforation group includes two perforations 112, which are spaced apart in the second direction F2 and extend in the first direction F1. The projections of the constraint holes 210 of each constraint hole group on the support plate 110 fall into the perforations 112 on the same side. This reduces the difficulty of sequentially passing through the constraint holes 210 and the perforations 112. For example, the number and position of the perforation groups can also correspond one-to-one with the constraint hole groups.

[0069] It should be noted that some animals, such as rats, have thin tails, making it more difficult to inject into their tails.

[0070] In some examples, refer to Figures 1 to 5 The animal restraint device may further include: a positioning block 140, which is disposed on the support plate 110 and located on one side of the restraint plate 200 in the first direction F1. The positioning block 140 has a positioning groove 141 located on the surface of the positioning block 140 away from the support plate 110 and extending along the first direction F1 for positioning the tail of the animal.

[0071] In practical use, the animal's torso is restrained by the restraint strap 300 to the restraint plate 200, and the tail is placed in the positioning groove 141 along the first direction F1. In this way, the tail is positioned by the positioning groove 141, which can reduce the difficulty of injecting into the animal's tail.

[0072] In some examples, refer to Figures 1 to 5 The animal restraint device may further include: a guide rail 150, wherein the guide rail 150 is fixedly mounted on the support plate 110, for example, integrally formed, and the guide rail 150 extends along a first direction F1; the positioning block 140 also has a guide groove 142, the guide groove 142 is located on the surface of the positioning block 140 facing the support plate 110 and extends along the first direction F1, the inner surface of the guide groove 142 abuts against and slides with the outer surface of the guide rail 150, and the positioning block 140 can adjust its relative position with the restraint plate 200 along the first direction F1. For example, if the animal's torso is short, the positioning block 140 can decrease its relative position with the restraint plate 200 along the first direction F1, so that the animal's tail can fall into the positioning groove 141 for positioning. For example, if the animal's torso is long, the positioning block 140 can increase its relative position with the restraint plate 200 along the first direction F1 to prevent the animal's torso from falling onto the positioning block 140.

[0073] It should be noted that the inner surface of the guide groove 142 and the outer surface of the guide rail 150 are in contact and sliding fit, which means that there is friction between the inner surface of the guide groove 142 and the outer surface of the guide rail 150. When the external force along the first direction F1 is greater than the friction, the two can slide relative to each other along the first direction F1. When the external force along the first direction F1 is less than or equal to the friction, the two can remain relatively stationary along the first direction F1.

[0074] In some examples, refer to Figures 1 to 5 The cross-sectional shape of the guide groove 142 can be T-shaped, and the cross-sectional shape of the guide rail 150 is adapted to it. This can prevent the positioning block 140 from disengaging from the guide rail 150 in a direction perpendicular to the support plate 110.

[0075] In some examples, a limiting protrusion is provided at one end of the guide groove 142. When the guide rail 150 abuts against the limiting protrusion, the guide rail 150 stops moving, thus preventing the positioning block 140 from disengaging from the guide rail 150 at the end with the limiting protrusion along the first direction F1.

[0076] It is understood that the above embodiments provide multiple implementation schemes, and these implementation schemes can be combined and cross-referenced with each other without conflict, thereby extending to multiple possible implementation schemes. These can all be considered as the implementation schemes disclosed and made public in this application.

[0077] In the description of this application, the terms "first," "second," "third," etc., are used only to distinguish the described objects and do not imply any order or technical meaning. Therefore, objects specified with "first," "second," "third," etc., may explicitly or implicitly include one or more of those objects. Furthermore, the words "one" or "a" do not indicate a quantity limitation, but rather indicate the presence of at least one, while "multiple" indicates at least two.

[0078] In the description of this application, the terms "connection" and others should be interpreted broadly. For example, "connection" can refer to a separate connection or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a non-detachable connection or a detachable connection. Those skilled in the art can understand the specific meaning of the aforementioned terms in this application according to the specific circumstances.

[0079] It is understandable that the term "and / or" in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this article indicates that the preceding and following related objects have an "or" relationship.

[0080] It should be noted that the "example" or "embodiment" referred to in this specification refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention.

[0081] While the present invention has been disclosed above, this disclosure is not limited thereto. Any person skilled in the art can make various alterations and modifications without departing from the spirit and scope of this disclosure; therefore, the scope of protection of this specification should be determined by the scope defined in the claims.

Claims

1. An animal restraint device, characterized in that, include: Support platform; A constraint plate, mounted on the support platform, has a constraint hole group, the constraint hole group including two constraint holes spaced apart, the constraint hole having a first sub-hole portion and a second sub-hole portion that are connected. The constraint band, configured such that when its end passes through the first sub-hole portion of the constraint hole, it is movable relative to the constraint plate in the axial direction of the constraint hole, and when its end passes through the second sub-hole portion of the constraint hole, it is restricted by the constraint plate in the axial direction of the constraint hole, and is also configured such that its end is capable of switching the object it passes through between the first sub-hole portion and the second sub-hole portion of the same constraint hole; A restraint cover is configured to form a restraint channel extending in a first direction with the restraint plate. The restraint cover has a first strip-shaped hole, the projection of which on the restraint plate extends in a second direction, the first direction being perpendicular to the second direction. When the restraint band passes through two second sub-holes of the restraint hole group at both ends, the restraint band can enter the restraint channel through the first strip-shaped hole to cooperate with the restraint plate to restrain the animal. The restraint cover is also configured to be detachably mounted on the restraint plate, wherein the projection of the first strip hole on the restraint plate covers two restraint holes of the restraint hole group, wherein the restraint cover can be removed from the restraint plate after the animal is restrained by the restraint straps and the restraint plate.

2. The apparatus according to claim 1, characterized in that, The first strip-shaped hole extends circumferentially along the constraint cover; The direction of the line connecting two constraint holes in the constraint hole group is consistent with the second direction.

3. The apparatus according to claim 2, characterized in that, The constraint cover includes: Two connecting parts, each of which is a strip-shaped structure extending along the first direction, and is detachably connected to the constraint plate; The top cover is an arc-shaped structure extending along the first direction, and the top cover is fixedly connected to two connecting parts on both sides along the second direction. The first strip-shaped hole extends circumferentially along the top cover and extends to the connecting portion. A portion of the first strip-shaped hole on the connecting portion is located outside the constraint channel, and the constraint hole group is located within the constraint plate area exposed by this portion of the first strip-shaped hole.

4. The apparatus according to claim 3, characterized in that, The number of constraint hole groups is multiple, and each constraint hole group is arranged at intervals along the first direction; The first strip hole corresponds one-to-one with the constrained hole group.

5. The apparatus according to claim 1, characterized in that, The inner diameter of the first sub-hole is larger than the inner diameter of the second sub-hole, and also larger than the inner diameter at the connection point between the first sub-hole and the second sub-hole; The constraint band has a first region and a second region that are alternately distributed along its length, wherein the outer diameter of the first region is larger than the outer diameter of the second region; Wherein, the maximum value of the outer diameter of the first region is less than or equal to the inner diameter of the first sub-hole, the minimum value of the outer diameter of the second region is less than or equal to the inner diameter at the connection position between the first sub-hole and the second sub-hole, the minimum value of the outer diameter of the second region is less than or equal to the inner diameter of the second sub-hole, and the maximum value of the outer diameter of the first region is greater than the inner diameter of the second sub-hole.

6. The apparatus according to claim 5, characterized in that, The inner diameter at the connection point between the first sub-hole and the second sub-hole is less than or equal to the inner diameter of the second sub-hole.

7. The apparatus according to claim 5, characterized in that, The first sub-hole portions corresponding to the two constraint holes in the constraint hole group are arranged opposite each other, and the two first sub-hole portions are located between the two corresponding second sub-hole portions.

8. The apparatus according to claim 1, characterized in that, The support platform includes: A support plate having a perforation group, wherein the projection of the constraint hole group on the support plate falls into the area where the perforation group is located; The support portion, the top end of which is fixedly connected to the bearing plate; The base is fixedly connected to the bottom end of the support.

9. The apparatus according to claim 8, characterized in that, Also includes: A positioning block is disposed on the bearing plate and located on one side of the constraint plate in the first direction; The positioning block has a positioning groove located on the surface of the positioning block away from the support plate and extending along the first direction.

10. The apparatus according to claim 9, characterized in that, Also includes: A guide rail is disposed on the support plate, the guide rail extends along the first direction, and the positioning block further comprises: A guide groove is located on the surface of the positioning block facing the support plate and extends along the first direction. The inner surface of the guide groove abuts against and slides with the outer surface of the guide rail. The positioning block can be adjusted relative to the constraint plate along the first direction.

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