Multipurpose large animal dissecting equipment

Abstract

The invention discloses multi-purpose large animal dissecting equipment, and relates to the technical field of medical equipment, the multi-purpose large animal dissecting equipment comprises a mounting plate, the top of the mounting plate is fixedly provided with a handle, the multi-purpose large animal dissecting equipment further comprises a digging assembly arranged at the bottom and the top of the mounting plate, and the digging assembly comprises a mounting block and an adjusting assembly arranged on the two sides of the mounting block; the mounting block is arranged below the mounting plate, a chisel head is arranged at the bottom of the mounting block, a threaded groove is formed in the bottom of the mounting block, a mounting screw is fixedly mounted at the top of the chisel head and is in threaded connection with the threaded groove, and a mounting rod is fixedly mounted at the top of the mounting block; according to the skull chiseling tool for the large test animal, when a large test skull is chiseled, a user can conveniently exert force, when the skull is chiseled along a saw seam, deviation of a chisel head can be avoided, deflection of the chisel head is avoided, accidental injury to the head of the animal is prevented, the head of the large test animal can be conveniently dissected, and convenience and practicability are improved.

Description

Technical Field

[0001] The invention relates to the technical field of medical equipment, in particular to a multi-purpose large animal dissection device. Background Art

[0002] In the prior art, preclinical studies of drugs need to be conducted in vivo on large experimental animals such as rabbits, Beagle dogs, cats, miniature pigs, monkeys, etc., among which the dissection and sampling of brain tissue are indispensable in most types of experiments. If the brain tissue is not removed and fixed for a long time after the death of the experimental animal, it is easy to liquefy or affect the weight of the organs or their coefficients, which will inevitably affect the test results. The general process is: the scalpel peels off the soft tissue on the top of the skull, and along the line from the brow arch to the external occipital protuberance, a bow saw or electric saw is used to saw the outer plate and plate barrier of the skull around the line, and then the bone chisel pries up the parietal bone, and then the scissors are used to cut, tear and pull the parietal bone apart, and the skull cover is opened to expose the dura mater covering the surface of the brain. In addition to the good sawing of the skull in the early stage, it is also crucial to use a bone chisel to pry open the skull along the saw seam for the removal of brain tissue.

[0003] For example, in a large experimental animal craniotomy with publication number CN213465430U, the handle and head of the craniotomy chisel are T-shaped, which conforms to the characteristics of ergonomics and is convenient for the user to hold the handle of the chisel and use the flat part of the chisel head to insert into the saw seam to pry open the skull. The end and both sides of the flat part of the chisel head are smooth and blunt, so that it is not easy to damage the brain tissue in the skull, and the lower surface of the flat part of the chisel head is smooth to facilitate smooth insertion into the saw seam. The raised portion of the chisel head can prevent the flat portion of the chisel head from being inserted too deeply into the saw slot, thereby avoiding damage to the brain tissue within the skull. However, in actual use, the chisel head is used to chisel open the skull of a large experimental animal. During the chiseling process, the user holds the handle to apply force, which can easily cause the chisel head to be unable to align with the saw slot. The chisel head is prone to deviation, which affects the insertion of the chisel head, and in turn affects the normal removal of the skull, and is likely to cause damage to the animal's skull. If the user directly holds the handle to apply force to chisel open the skull, the user's force is similar to poking, and it is not convenient for the user to apply force directly, and there are certain defects in use.

[0004] Therefore, we proposed a multi-purpose large animal dissection device to solve the above problems. Summary of the invention

[0005] The object of the present invention is to provide a multi-purpose large animal dissection equipment to solve the problem proposed in the above-mentioned background technology that the skull of a large experimental animal is chiseled open by a chisel head. During the chiseling process, the user holds the handle to exert force, which easily causes the chisel head to be unable to align with the saw seam, and the chisel head is prone to deviation, which affects the insertion of the chisel head, and further affects the normal removal of the skull, and is likely to cause damage to the animal skull. Moreover, if the user directly holds the handle to exert force to chisel open the skull, the user's force is similar to poking, and the user's direct force is inconvenient and not easy to use.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solutions: a multi-purpose large animal dissection device, comprising a mounting plate, a handle fixedly mounted on the top of the mounting plate;

[0007] Also includes:

[0008] A cutting assembly is arranged at the bottom and the top of the mounting plate, and the cutting assembly includes a mounting block;

[0009] Adjustment components are arranged on both sides of the mounting block;

[0010] A mounting block is arranged below the mounting plate, a chisel head is arranged at the bottom of the mounting block, a threaded groove is opened at the bottom of the mounting block, a mounting screw is fixedly installed at the top of the chisel head, the mounting screw is threadedly connected to the threaded groove, and a mounting rod is fixedly installed at the top of the mounting block;

[0011] The movable plate is fixedly mounted on the top of the mounting rod, guide rods are symmetrically mounted between the top of the mounting plate and the top of the inner part of the handle, and the sliding plates are slidably connected to the outsides of the two guide rods, and the handle is fixedly mounted on the top of the sliding plate, and a movable rod is fixedly mounted on one side of the bottom of the sliding plate, and the movable rod is slidably connected to the mounting plate;

[0012] The support frame is symmetrically installed on one side of the bottom of the mounting plate. A rotating shaft is rotatably connected between the two support frames, and a rotating gear is fixedly installed on one side of the rotating shaft, and a rack is fixedly installed on one side of the movable rod. At the same time, the rotating gear is meshed with the rack, and a cam is fixedly installed on the other side of the rotating shaft, and the cam is slidably connected to the movable plate.

[0013] Preferably, L-shaped rods are symmetrically installed on both sides of the mounting rod, and fixing frames are symmetrically installed on both sides of the bottom of the mounting plate, and the two L-shaped rods are slidably connected to the two fixing frames respectively, and at the same time, telescopic springs are sleeved on the outer upper parts of the two L-shaped rods, and one end of the telescopic spring is fixedly connected to the L-shaped rod, and the other end of the telescopic spring is fixedly connected to the fixing frame.

[0014] By adopting the above technical solution, the movement of the installation rod can be guided, and the installation rod and the chisel head can be automatically reset after moving.

[0015] Preferably, a baffle is provided on the outside of the chisel head, and a through groove is opened on the top of the baffle, and support rods are symmetrically installed on one side of the two fixed frames at the bottom of the mounting plate, and a positioning plate is fixedly installed on the bottom of the support rod, and one side of the outer side of the support rod is slidably connected to the movable sleeve, and a connecting rod is fixedly installed on one side of the movable sleeve, and the end of the connecting rod away from the movable sleeve is fixedly connected to the mounting block.

[0016] By adopting the above technical solution, the movement of the installation rod can drive the movable sleeve to move.

[0017] Preferably, the two groups of support rods are both provided with a return spring on the outside below the movable sleeve, and the top of the return spring is fixedly connected to the movable sleeve, and a sliding block is fixedly installed on the bottom of the return spring, and at the same time, a number of pointed rods are symmetrically installed on the bottom of the sliding block, and a number of through holes are symmetrically opened on the top of the positioning plate, and the pointed rods are adaptably connected to the through holes.

[0018] By adopting the above technical solution, when chiseling an animal's skull, the whole can be positioned to avoid accidental movement, deviation of the chisel head, tilting of the chisel head, and accidental damage to the animal's head.

[0019] Preferably, the bottom ends of the plurality of pointed rods are chamfered.

[0020] By adopting the above technical solution, the bottom end of the pointed rod can be prevented from being too sharp, thereby preventing the animal's skin from being pierced.

[0021] Preferably, the adjustment assembly includes an adjustment rod symmetrically installed on the top of the baffle, and mounting frames are symmetrically installed on both sides of the mounting block, and a mounting groove is penetrated through one side of the top of the mounting frame, and a first rubber sleeve is fixedly installed on one side of the interior of the mounting groove, and a second rubber sleeve is arranged on the other side of the interior of the mounting groove.

[0022] By adopting the above technical solution, it is convenient for users to adjust the position of the baffle according to the thickness of the skull of the test animal, and the baffle is automatically limited after adjustment.

[0023] Preferably, a sliding rod is slidably connected to an inner side of the mounting frame, and the second rubber sleeve is fixedly connected to the sliding rod, and a compression spring is sleeved on an outer side of the sliding rod, and the compression spring is in a slightly compressed state, and one end of the compression spring is fixedly connected to the mounting frame, and a mounting seat is fixedly installed on the other end of the compression spring, and the mounting seat is fixedly connected to the sliding rod.

[0024] By adopting the above technical solution, after the adjusting rod moves, the adjusting rod can be automatically limited because the compression spring is in a slightly compressed state.

[0025] Preferably, a ball bearing is spherically jointed on one side of the inner part of the two mounting seats, and a fixing rod is fixedly mounted on one side of the bottom of the two fixing frames, and an inclined block is fixedly mounted below one side of the fixing rod, and the ball bearing is rotatably connected to the inclined block.

[0026] By adopting the above technical solution, the downward movement of the installation rod can drive the sliding rod to move.

[0027] Compared with the prior art, the invention has the following beneficial effects: the multi-purpose large animal dissection equipment is provided with chiseling components at the top and bottom of the mounting plate, so that when chiseling a large experimental skull, it is convenient for the user to exert force, and when chiseling the skull along the saw seam, the chisel head can be prevented from deviating, the chisel head can be prevented from being skewed, and accidental damage to the animal's head can be prevented, so that the dissection of the head of a large experimental animal is convenient, and the convenience and practicality are improved;

[0028] 1. Chiseling components are set at the top and bottom of the mounting plate. When dissecting the head of a large experimental animal, the skull is sawed open with an electric saw or a bow saw. Because it is not easy to saw too deep and the shape of the skull is irregular, some muscle tissues are still connected up and down and are not easy to separate to expose the brain tissue. Align the chisel head with the saw seam, and then fit the two sets of positioning plates to the animal's head. Then, the handle can be held so that the whole does not move. The user's palm fits the handle, the finger is inserted into the grip, and the grip is pinched to move. After the grip moves, the sliding plate is driven to slide on the guide rod for limiting, so that the movable rod can be driven to slide on the mounting plate After the movable rod moves, it can drive the rack to move, and then drive the rotating shaft to rotate through the meshing with the rotating gear. After the rotating shaft rotates, it can drive the cam to rotate. After the cam rotates, it can push the movable plate down, so that the installation rod and the chisel head can move. During the movement of the installation rod, the L-shaped rod is driven to slide on the fixed frame, and the telescopic spring can be compressed, so that the chisel head can be inserted into the saw seam. The chisel head can be limited by the baffle to avoid excessive insertion and cause brain tissue damage. Then, the chiseling assembly is convenient for users to exert force, which is convenient for dissecting the heads of large experimental animals, thereby improving convenience and practicality.

[0029] 2. During the process of excavating the skull, the movement of the mounting rod can drive the movement of the two sets of connecting rods. After the connecting rod moves, it drives the movable sleeve to slide on the support rod, thereby moving the sliding block, so that several pointed rods on the sliding block pass through the through holes, so that the pointed rods can fit the animal's head skin, and one end of the pointed rod is chamfered so that it is not too sharp to avoid stabbing the animal's skin. After that, the mounting block and the chisel head continue to move to drive the movable sleeve to move, so that the reset spring can be squeezed to exert a certain pressure on the sliding block, so that when the animal's skull is chiseled, the whole can be positioned to avoid accidental movement, deviation of the chisel head, and skewness of the chisel head, thereby preventing accidental damage to the animal's head;

[0030] 3. In the head dissection of different large experimental animals, the thickness of the skulls of animals of different body shapes is different. The baffle can be moved according to the thickness of the animal's skull. The baffle can drive the adjustment rod to move. The adjustment rod can move in the first rubber sleeve and the second rubber sleeve. After adjusting the position of the baffle, since the compression spring is in a slightly compressed state, the adjustment rod can automatically limit the position. When the skull is chiseled, the chisel head will be driven to move. When the chisel head and the mounting block move, the mounting frame can be moved. During the movement of the mounting frame, the ball on the mounting seat moves on the inclined block. Rotation, since one side of the inclined block has a certain slope, the downward movement of the mounting frame can move the sliding rod and the second rubber sleeve. Since the first rubber sleeve and the second rubber sleeve are both made of elastic materials, the first rubber sleeve and the second rubber sleeve can be deformed, so that the first rubber sleeve and the second rubber sleeve have sufficient pressure to prevent the adjustment rod from moving, so that it is convenient for users to adjust the position of the baffle according to the thickness of the skull of the test animal, and the position is automatically limited after adjustment. The baffle can be reliably positioned during the process of chiseling the skull to avoid accidental movement of the baffle. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention;

[0032] Figure 2 It is a schematic diagram of the three-dimensional structure of the present invention as a whole from another perspective;

[0033] Figure 3 It is a schematic diagram of the local structure of the excavation assembly of the present invention;

[0034] Figure 4 For the present invention Figure 3 A schematic diagram of the enlarged structure of the middle A area;

[0035] Figure 5 This is a schematic diagram of the three-dimensional cross-sectional structure of the mounting block of the present invention;

[0036] Figure 6 For the present invention Figure 1Schematic diagram of the enlarged structure of the middle B area;

[0037] Figure 7 For the present invention Figure 1 Schematic diagram of the enlarged structure of the middle C area;

[0038] Figure 8 This is a schematic diagram of the structure of the regulating component of the present invention;

[0039] Fig. 9 For the present invention Figure 8 Schematic diagram of the enlarged structure of area D in the middle.

[0040] In the figure: 1, mounting plate; 101, handle; 2, chiseling assembly; 201, mounting block; 2011, threaded groove; 202, chisel head; 2021, mounting screw; 203, mounting rod; 204, movable plate; 205, sliding plate; 206, guide rod; 207, grip; 208, movable rod; 209, support frame; 210, rotating shaft; 211, rotating gear; 212, rack; 213, cam; 214, L-shaped rod; 215, fixing frame; 216, telescopic spring; 2 17. baffle; 218. support rod; 219. positioning plate; 220. movable sleeve; 221. connecting rod; 222. return spring; 223. sliding block; 224. pointed rod; 225. through hole; 3. adjustment assembly; 301. adjustment rod; 302. mounting bracket; 303. mounting groove; 304. first rubber sleeve; 305. second rubber sleeve; 306. sliding rod; 307. compression spring; 308. mounting seat; 309. ball; 310. fixing rod; 311. inclined block. DETAILED DESCRIPTION

[0041] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0042] See also Figure 1-Figure 9 , the present invention provides a technical solution: a multi-purpose large animal dissection device, comprising a mounting plate 1, a handle 101 is fixedly mounted on the top of the mounting plate 1;

[0043] Also includes:

[0044] The excavation assembly 2 is arranged at the bottom and the top of the mounting plate 1, and the excavation assembly 2 includes a mounting block 201;

[0045] The mounting block 201 is arranged below the mounting plate 1, a chisel head 202 is arranged at the bottom of the mounting block 201, a threaded groove 2011 is opened at the bottom of the mounting block 201, and a mounting screw 2021 is fixedly installed on the top of the chisel head 202, and the mounting screw 2021 is threadedly connected to the threaded groove 2011, and a mounting rod 203 is fixedly installed on the top of the mounting block 201;

[0046] The movable plate 204 is fixedly mounted on the top of the mounting rod 203, and a guide rod 206 is symmetrically mounted between the top of the mounting plate 1 and the top of the handle 101, and the outside of the two guide rods 206 is slidably connected with a sliding plate 205, and a handle 207 is fixedly mounted on the top of the sliding plate 205, and a movable rod 208 is fixedly mounted on one side of the bottom of the sliding plate 205, and the movable rod 208 is slidably connected with the mounting plate 1;

[0047] The support frame 209 is symmetrically mounted on one side of the bottom of the mounting plate 1, and a rotating shaft 210 is rotatably connected between the two support frames 209, and a rotating gear 211 is fixedly mounted on one side of the rotating shaft 210, and a rack 212 is fixedly mounted on one side of the movable rod 208, and the rotating gear 211 is meshedly connected with the rack 212, and a cam 213 is fixedly mounted on the other side of the rotating shaft 210, and the cam 213 is slidably connected with the movable plate 204;

[0048] L-shaped rods 214 are symmetrically installed on both sides of the mounting rod 203, and fixing frames 215 are symmetrically installed on both sides of the bottom of the mounting plate 1, and the two L-shaped rods 214 are slidably connected to the two fixing frames 215 respectively. At the same time, telescopic springs 216 are sleeved on the upper parts of the outsides of the two L-shaped rods 214, and one end of the telescopic spring 216 is fixedly connected to the L-shaped rod 214, and the other end of the telescopic spring 216 is fixedly connected to the fixing frame 215.

[0049] Embodiment 1: Figure 1-Figure 6As shown, a chiseling assembly 2 is provided at the top and bottom of the mounting plate 1. When dissecting the head of a large experimental animal, the skull is sawed open by an electric saw or a bow saw. Since it is not easy to saw too deep and the shape of the skull is irregular, some muscle tissues are still connected up and down and are not easy to separate to expose the brain tissue. The chisel head 202 is aligned with the saw seam, and then the two sets of positioning plates 219 are fitted with the animal's head. Then, the handle 101 can be held so that the whole does not move. The user's palm fits the handle 101, and the fingers are inserted into the grip 207, and the grip 207 is pinched to move. After the grip 207 moves, it drives the sliding plate 205 to slide on the guide rod 206 to limit the position, so that the movable rod 208 can be driven. Sliding on the mounting plate 1, the movable rod 208 can drive the rack 212 to move after moving, and then drive the rotating shaft 210 to rotate through the engagement with the rotating gear 211. After the rotating shaft 210 rotates, it can drive the cam 213 to rotate. After the cam 213 rotates, it can push the movable plate 204 downward, so that the mounting rod 203 and the chisel head 202 move. During the movement of the mounting rod 203, the L-shaped rod 214 is driven to slide on the fixed frame 215, and the telescopic spring 216 can be compressed, so that the chisel head 202 can be inserted into the saw seam, and then the user can use the excavation component 2 to facilitate the force, so as to facilitate the dissection of the head of large experimental animals, thereby improving convenience and practicality.

[0050] A baffle plate 217 is provided on the outside of the chisel head 202, and a through groove is formed on the top of the baffle plate 217, and a support rod 218 is symmetrically installed on one side of the two fixing frames 215 at the bottom of the mounting plate 1, and a positioning plate 219 is fixedly installed on the bottom of the support rod 218, and one side of the outer side of the support rod 218 is slidably connected to the movable sleeve 220, and a connecting rod 221 is fixedly installed on one side of the movable sleeve 220, and the end of the connecting rod 221 away from the movable sleeve 220 is fixedly connected to the mounting block 201;

[0051] The two sets of support rods 218 are both sleeved with a return spring 222 located below the movable sleeve 220, and the top of the return spring 222 is fixedly connected to the movable sleeve 220, and the bottom of the return spring 222 is fixedly installed with a sliding block 223, and at the same time, a plurality of pointed rods 224 are symmetrically installed at the bottom of the sliding block 223, and a plurality of through holes 225 are symmetrically opened on the top of the positioning plate 219, and the pointed rods 224 are adaptively connected to the through holes 225;

[0052] The bottom ends of the plurality of pointed rods 224 are chamfered.

[0053] Embodiment 2: Figure 1-Figure 2 and Figure 7As shown, during the process of chiseling the skull, the chisel head 202 can be limited by the baffle 217 to avoid excessive insertion and damage to the brain tissue. The movement of the mounting rod 203 can drive the two sets of connecting rods 221 to move. After the connecting rod 221 moves, it drives the movable sleeve 220 to slide on the support rod 218, thereby moving the sliding block 223, so that several pointed rods 224 on the sliding block 223 pass through the through hole 225, so that the pointed rods 224 can fit the skin of the animal's head, and one end of the pointed rods 224 is chamfered so that it is not too sharp to avoid stabbing the animal's skin. After that, the mounting block 201 and the chisel head 202 continue to move to drive the movable sleeve 220 to move, so that the reset spring 222 can be squeezed, and a certain pressure is exerted on the sliding block 223, so that when the animal's skull is chiseled, the whole can be positioned to avoid accidental movement, avoid deviation of the chisel head 202, avoid causing the chisel head 202 to be skewed, and prevent accidental damage to the animal's head.

[0054] Adjustment components 3, arranged on both sides of the mounting block 201;

[0055] The adjustment assembly 3 includes an adjustment rod 301 symmetrically mounted on the top of the baffle 217, and mounting frames 302 are symmetrically mounted on both sides of the mounting block 201, and a mounting groove 303 is penetrated through one side of the top of the mounting frame 302, and a first rubber sleeve 304 is fixedly mounted on one side of the interior of the mounting groove 303, and a second rubber sleeve 305 is arranged on the other side of the interior of the mounting groove 303;

[0056] A sliding rod 306 is slidably connected to one side of the interior of the mounting frame 302, and the second rubber sleeve 305 is fixedly connected to the sliding rod 306, and a compression spring 307 is sleeved on one side of the exterior of the sliding rod 306, and the compression spring 307 is in a slightly compressed state, and one end of the compression spring 307 is fixedly connected to the mounting frame 302, and a mounting seat 308 is fixedly installed on the other end of the compression spring 307, and the mounting seat 308 is fixedly connected to the sliding rod 306;

[0057] A ball bearing 309 is spherically jointed on one side of the inner part of the two mounting seats 308, and a fixing rod 310 is fixedly installed on one side of the bottom of the two fixing frames 215, and an inclined block 311 is fixedly installed below one side of the fixing rod 310, and the ball bearing 309 is rotatably connected to the inclined block 311.

[0058] Embodiment 3: Figure 1-Figure 2 and Figure 8-Figure 9As shown, in the head dissection of different large experimental animals, the thickness of the skulls of animals of different body shapes is different. The baffle 217 can be moved according to the thickness of the animal's skull. The baffle 217 can drive the adjustment rod 301 to move. The adjustment rod 301 can move in the first rubber sleeve 304 and the second rubber sleeve 305. After the position of the baffle 217 is adjusted, since the compression spring 307 is in a slightly compressed state, the adjustment rod 301 can automatically limit the position. When the skull is chiseled, the chisel head 202 will be driven to move. When the chisel head 202 and the mounting block 201 move, the mounting frame 302 can be moved. During the movement of the mounting frame 302, the ball 309 on the mounting seat 308 moves obliquely. The block 311 is rotated. Since one side of the inclined block 311 has a certain slope, the downward movement of the mounting frame 302 can move the sliding rod 306 and the second rubber sleeve 305. Since the first rubber sleeve 304 and the second rubber sleeve 305 are both made of elastic materials, the first rubber sleeve 304 and the second rubber sleeve 305 can be deformed, so that the first rubber sleeve 304 and the second rubber sleeve 305 have sufficient pressure to prevent the adjustment rod 301 from moving, so that it is convenient for users to adjust the position of the baffle 217 according to the thickness of the skull of the test animal, and the baffle 217 is automatically limited after adjustment. During the process of chiseling the skull, the baffle 217 can be reliably positioned to prevent the baffle 217 from moving accidentally.

[0059] Working principle: When using this multi-purpose large animal dissection equipment, first, according to Figure 1-Figure 9As shown, when dissecting the head of a large experimental animal, the skull is sawed open with an electric saw or a bow saw. Since it is not easy to saw too deep and the shape of the skull is irregular, some muscle tissues are still connected up and down and are not easy to separate to expose the brain tissue. The chisel head 202 is aligned with the saw seam, and then the two sets of positioning plates 219 are fitted with the animal's head. Then the handle 101 can be held so that the whole does not move. The user fits the palm of the handle 101, inserts the finger into the grip 207, and pinches the grip 207 to move. After the grip 207 moves, it drives the sliding plate 205 to slide on the guide rod 206 for limiting, so that the movable rod 208 can be driven to slide on the mounting plate 1. After the movable rod 208 moves, it can drive the rack 212 to move, and then drive the rotating shaft 210 to rotate through engagement with the rotating gear 211. After the rotating shaft 210 rotates, it can drive the cam 213 to rotate. After the cam 213 rotates, it can push the movable plate 204 downward, so that the mounting rod 203 and the chisel head 202 move. During the movement of the mounting rod 203, the L-shaped rod 214 is driven to slide on the fixing frame 215, and the telescopic spring 216 can be compressed, so that the chisel head 202 can be inserted into the sawing seam. The chisel head 202 can be limited by the baffle 217 to avoid excessive insertion and brain tissue damage. During the process of excavating the skull, the movement of the mounting rod 203 can drive the two sets of connecting rods 221 to move. After the connecting rods 221 move, the movable sleeve 220 is driven to slide on the supporting rod 218, thereby making the sliding block 22 3, so that several pointed rods 224 on the sliding block 223 pass through the through hole 225, so that the pointed rods 224 can fit the animal's head skin, and one end of the pointed rods 224 is chamfered so that it is not too sharp to avoid stabbing the animal's skin. Then, the mounting block 201 and the chisel head 202 continue to move to drive the movable sleeve 220 to move, so that the reset spring 222 can be squeezed to exert a certain pressure on the sliding block 223, so that the whole can be positioned when the animal's skull is chiseled open;

[0060] In the head dissection of different large experimental animals, the thickness of the skulls of animals of different body shapes is different. The baffle 217 can be moved according to the thickness of the animal's skull. The baffle 217 can drive the adjustment rod 301 to move. The adjustment rod 301 can move in the first rubber sleeve 304 and the second rubber sleeve 305. After the position of the baffle 217 is adjusted, since the compression spring 307 is in a slightly compressed state, the adjustment rod 301 can automatically limit the position. When the skull is chiseled, the chisel head 202 will be driven to move. When the chisel head 202 and the mounting block 201 move, the mounting frame 302 can be moved. The mounting frame During the movement of 302, the ball 309 on the mounting seat 308 rotates on the inclined block 311. Since one side of the inclined block 311 has a certain slope, the downward movement of the mounting frame 302 can move the sliding rod 306 and the second rubber sleeve 305. Since the first rubber sleeve 304 and the second rubber sleeve 305 are both made of elastic materials, the first rubber sleeve 304 and the second rubber sleeve 305 can be deformed, so that the first rubber sleeve 304 and the second rubber sleeve 305 have sufficient pressure to prevent the adjustment rod 301 from moving, thereby facilitating the user to adjust the position of the baffle 217 according to the thickness of the skull of the test animal.

[0061] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0062] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A multi-purpose large animal dissection device, comprising a mounting plate (1), a handle (101) being fixedly mounted on the top of the mounting plate (1); It is characterized in that Also includes: A cutting assembly (2) is arranged at the bottom and the top of the mounting plate (1), wherein the cutting assembly (2) comprises a mounting block (201); Adjustment components (3) are arranged on both sides of the mounting block (201); A mounting block (201) is arranged below the mounting plate (1); a chisel head (202) is arranged at the bottom of the mounting block (201); a threaded groove (2011) is provided at the bottom of the mounting block (201); a mounting screw rod (2021) is fixedly installed at the top of the chisel head (202); the mounting screw rod (2021) is threadedly connected to the threaded groove (2011); and a mounting rod (203) is fixedly installed at the top of the mounting block (201); A movable plate (204) is fixedly mounted on the top of the mounting rod (203), a guide rod (206) is symmetrically mounted between the top of the mounting plate (1) and the top of the handle (101), and the outsides of the two guide rods (206) are slidably connected to a sliding plate (205), and a handle (207) is fixedly mounted on the top of the sliding plate (205), and a movable rod (208) is fixedly mounted on one side of the bottom of the sliding plate (205), and the movable rod (208) is slidably connected to the mounting plate (1); The support frame (209) is symmetrically mounted on one side of the bottom of the mounting plate (1); a rotating shaft (210) is rotatably connected between the two support frames (209); a rotating gear (211) is fixedly mounted on one side of the rotating shaft (210); a rack (212) is fixedly mounted on one side of the movable rod (208); the rotating gear (211) is meshingly connected with the rack (212); a cam (213) is fixedly mounted on the other side of the rotating shaft (210); and the cam (213) is slidably connected to the movable plate (204).

2. A multi-purpose large animal dissection device according to claim 1, characterized in that: L-shaped rods (214) are symmetrically mounted on both sides of the mounting rod (203), and fixing frames (215) are symmetrically mounted on both sides of the bottom of the mounting plate (1), and the two L-shaped rods (214) are slidably connected to the two fixing frames (215) respectively, and telescopic springs (216) are sleeved on the upper parts of the outer parts of the two L-shaped rods (214), and one end of the telescopic spring (216) is fixedly connected to the L-shaped rod (214), and the other end of the telescopic spring (216) is fixedly connected to the fixing frame (215).

3. A multi-purpose large animal dissection device according to claim 2, characterized in that: A baffle (217) is arranged outside the chisel head (202), and a through groove is formed through the top of the baffle (217), and a support rod (218) is symmetrically installed on one side of the two fixing frames (215) at the bottom of the mounting plate (1), and a positioning plate (219) is fixedly installed at the bottom of the support rod (218), and an outer side of the support rod (218) is slidably connected to a movable sleeve (220), and a connecting rod (221) is fixedly installed on one side of the movable sleeve (220), and an end of the connecting rod (221) away from the movable sleeve (220) is fixedly connected to the mounting block (201).

4. A multi-purpose large animal dissection device according to claim 3, characterized in that: The two groups of support rods (218) are both sleeved with a return spring (222) located below the movable sleeve (220), and the top of the return spring (222) is fixedly connected to the movable sleeve (220), and the bottom of the return spring (222) is fixedly installed with a sliding block (223), and at the same time, a plurality of pointed rods (224) are symmetrically installed at the bottom of the sliding block (223), and a plurality of through holes (225) are symmetrically opened at the top of the positioning plate (219), and the pointed rods (224) are adaptively connected to the through holes (225).

5. A multi-purpose large animal dissection device according to claim 4, characterized in that: The bottom ends of the plurality of pointed rods (224) are chamfered.

6. The multi-purpose large animal dissection device according to claim 3, characterized in that: The adjustment assembly (3) comprises an adjustment rod (301) symmetrically mounted on the top of the baffle (217), and mounting frames (302) are symmetrically mounted on both sides of the mounting block (201), and a mounting groove (303) is provided through one side of the top of the mounting frame (302), and a first rubber sleeve (304) is fixedly mounted on one side of the interior of the mounting groove (303), and a second rubber sleeve (305) is provided on the other side of the interior of the mounting groove (303).

7. A multi-purpose large animal dissection device according to claim 6, characterized in that: A sliding rod (306) is slidably connected to an inner side of the mounting frame (302), and the second rubber sleeve (305) is fixedly connected to the sliding rod (306), and a compression spring (307) is sleeved on an outer side of the sliding rod (306), and the compression spring (307) is in a slightly compressed state, and one end of the compression spring (307) is fixedly connected to the mounting frame (302), and a mounting seat (308) is fixedly installed on the other end of the compression spring (307), and the mounting seat (308) is fixedly connected to the sliding rod (306).

8. The multi-purpose large animal dissection device according to claim 7, characterized in that: A ball bearing (309) is spherically jointed on one side of the interior of the two mounting seats (308), and a fixing rod (310) is fixedly mounted on one side of the bottom of the two fixing frames (215), and an inclined block (311) is fixedly mounted below one side of the fixing rod (310), and the ball bearing (309) is rotatably connected to the inclined block (311).

Images