A tissue sampler for frozen dead cattle and sheep

Abstract

This utility model relates to the field of animal disease sampling technology and discloses a sampler for tissue samples from frozen dead cattle and sheep, including an electric drill body, a toothed disc a, a toothed disc b, a drill rod, and an installation sleeve; the surface of the installation sleeve has two vertical grooves symmetrically opened, and the inner cavity of the two vertical grooves is slidably connected to a push plate through a guide rod, and a compression spring a is provided between the push plate and the installation sleeve; the surface of the installation sleeve has two horizontal grooves symmetrically opened, and a composite locking structure of "locking block + compression spring b" is adopted: when the push plate moves to the sample storage position, the locking block, under the continuous elastic force of the compression spring b, resets along the guide groove through the guide block, and its top is tightly fitted with the surface of the guide rod to form a rigid limit. When the electric drill rotates at high speed and generates centrifugal force, the locking block can stably lock the guide rod, completely avoiding accidental movement of the push plate, ensuring stable storage of the sample in the sample storage space, effectively preventing loss or contamination caused by premature sample ejection, and significantly improving sampling reliability.

Description

Technical Field

[0001] This utility model relates to the field of animal disease sampling technology, specifically a sampler for tissue samples from frozen dead cattle and sheep. Background Technology

[0002] The tissue sampler for frozen dead cattle and sheep is a tool specifically designed to collect tissue samples from frozen meat. It is mainly used in animal pathology research, food safety testing, and other scenarios. This sampler can help researchers or testing personnel extract specific types of tissue samples from frozen animal carcasses for subsequent pathogen detection, pathological analysis, and other work.

[0003] Chinese Patent Publication No. (CN222752083U) discloses a sampler for organs and tissues from frozen dead pigs. The drill head is fixedly connected to a drill bit holder, which is mounted on a drill rod connected to a motor. A first serrated disc and a second serrated disc are selectively matched with the drill rod, with the outer diameter of the first serrated disc being larger than that of the second serrated disc. An installation sleeve is fitted around the center of the second serrated disc. One end of the installation sleeve is detachably connected to the drill rod, serving as the installation end; the other end is recessed to form a sample storage cavity, serving as the sampling end. The opening of the sample storage cavity is located on the front of the second serrated disc, and a sampling tongue is attached to the sampling end.

[0004] The push handle in the aforementioned comparative document is circumferentially limited by a short groove, but when rotating at high speed, the push handle may slip out of the short groove due to centrifugal force, causing the push plate to move unexpectedly and push the sample out of the storage chamber in advance, resulting in sample loss or contamination.

[0005] In view of this, the present invention solves the above-mentioned technical problems by proposing a tissue sampler for frozen dead cattle and sheep. Utility Model Content

[0006] To address the shortcomings of the aforementioned background technology, this utility model provides a technical solution for a tissue sampler for frozen dead cattle and sheep, employing a composite locking structure of "locking block + compression spring b": when the push plate moves to the sample storage position, the locking block, under the continuous elastic force of the compression spring b, resets along the guide groove via the guide block, with its top tightly fitting against the surface of the guide rod to form a rigid limit. When the electric drill rotates at high speed and generates centrifugal force, the locking block can stably lock the guide rod, completely preventing accidental movement of the push plate, ensuring stable storage of the sample in the sample storage space, effectively preventing loss or contamination caused by premature sample ejection, and significantly improving sampling reliability.

[0007] This utility model provides the following technical solution: a sampler for tissue samples from frozen dead cattle and sheep, comprising an electric drill body, a sawtooth disc a, a sawtooth disc b, a drill rod, and a mounting sleeve;

[0008] The surface of the mounting sleeve has two vertical grooves symmetrically formed. The inner cavity of the two vertical grooves is slidably connected to a push plate through a guide rod. A compression spring a is provided between the push plate and the mounting sleeve.

[0009] The surface of the mounting sleeve has two symmetrical horizontal grooves, each of which is connected to each of the vertical grooves, and the overall shape is a "7" structure.

[0010] Each of the transverse grooves has guide grooves at both the top and bottom. The inner cavity of the guide groove is slidably connected to a locking block via a guide block. The bottom of the locking block may be provided with a pressing slope. A compression spring b is provided between the locking block and the transverse groove. A pull rod is fixedly connected to the surface of the locking block.

[0011] As a preferred embodiment of this utility model, a sealing ring is provided on the outer surface of the push plate, and the outer surface of the sealing ring is in sealing contact with the inner wall of the mounting sleeve. The sealing ring is a silicone sealing ring.

[0012] As a preferred embodiment of this utility model, the inner wall of the mounting sleeve is mirror-polished, and the interior of the mounting sleeve is coated with a polytetrafluoroethylene anti-stick coating.

[0013] As a preferred technical solution of this utility model, the electric drill body includes a gun-handle type electric drill and a pen-type electric drill. The gun-handle type electric drill is detachably connected to one end of the sawtooth disc a through the drill rod, and the pen-type electric drill is detachably connected to one end of the mounting sleeve through the drill rod.

[0014] As a preferred embodiment of this utility model, the inner cavity of the sawtooth disc b is threadedly connected to the surface of the mounting sleeve, and a sampling slope is provided on the other side of the mounting sleeve, the sampling slope being opened at an angle.

[0015] As a preferred technical solution of this utility model, the two ends of the compression spring a are fixedly connected to the top of the inner wall of the mounting sleeve and the surface of the push plate, respectively, and the two ends of the compression spring b are fixedly connected to the inner wall of the transverse groove and the outer surface of the locking block, respectively.

[0016] As a preferred embodiment of this utility model, the surface of the sampling slope is coated with a polytetrafluoroethylene anti-stick coating, and the edge of the slope is provided with a sharp blade.

[0017] As a preferred embodiment of this utility model, the mounting sleeve is a 304 stainless steel mounting sleeve.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. In response to the defect in the comparative document that "the pusher slips out of the short groove due to centrifugal force, causing the pusher plate to move unexpectedly", this sampler adopts a composite locking structure of "locking block + compression spring b": when the pusher plate moves to the sample storage position, the locking block, under the continuous elastic force of the compression spring b, resets along the guide groove through the guide block. Its top is tightly fitted with the surface of the guide rod to form a rigid limit. When the electric drill rotates at high speed and generates centrifugal force, the locking block can stably lock the guide rod, completely avoiding the pusher plate from moving unexpectedly, ensuring the stable storage of the sample in the sample storage space, effectively preventing loss or contamination caused by premature sample ejection, and significantly improving the sampling reliability. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the sawtooth disc a structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the sawtooth disc b structure of this utility model;

[0022] Figure 3 This is a schematic diagram of the mounting sleeve structure of this utility model;

[0023] Figure 4 This is a front view of the mounting sleeve of this utility model;

[0024] Figure 5 This is a schematic diagram of the guide groove structure of this utility model;

[0025] Figure 6 This is an exploded view of the present invention.

[0026] In the diagram: 1. Sawtooth disc a; 101. Sawtooth disc b; 102. Drill rod; 103. Mounting sleeve; 2. Vertical groove; 201. Guide rod; 202. Push plate; 203. Compression spring a; 204. Horizontal groove; 205. Guide groove; 206. Guide block; 207. Locking block; 208. Extrusion bevel; 209. Compression spring b; 2010. Pull rod; 3. Sealing ring; 4. Gun handle type electric drill; 401. Pen type electric drill; 5. Sampling bevel. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figure 1-6 As shown, a tissue sampler for frozen dead cattle and sheep includes an electric drill body, a saw toothed disc a1, a saw toothed disc b101, a drill rod 102, and an installation sleeve 103.

[0029] Two vertical grooves 2 are symmetrically opened on the surface of the mounting sleeve 103. The inner cavity of the two vertical grooves 2 is slidably connected to the push plate 202 through the guide rod 201. A compression spring a203 is provided between the push plate 202 and the mounting sleeve 103.

[0030] Two horizontal grooves 204 are symmetrically opened on the surface of the mounting sleeve 103. Each horizontal groove 204 is connected to each vertical groove 2, and the overall shape is a "7" structure.

[0031] Each horizontal groove 204 has a guide groove 205 at both the upper and lower ends. The inner cavity of the guide groove 205 is slidably connected to a locking block 207 via a guide block 206. The bottom of the locking block 207 may be provided with a pressing slope 208. A compression spring b209 is provided between the locking block 207 and the horizontal groove 204. A pull rod 2010 is fixedly connected to the surface of the locking block 207.

[0032] A sealing ring 3 is fitted on the outer surface of the push plate 202. The outer surface of the sealing ring 3 is in sealing fit with the inner wall of the mounting sleeve 103. The sealing ring 3 is a silicone sealing ring.

[0033] The inner wall of the mounting sleeve 103 is mirror polished, and the inside of the mounting sleeve 103 is coated with a polytetrafluoroethylene anti-stick coating.

[0034] The drill body includes a gun handle type drill 4 and a pen type drill 401. The gun handle type drill 4 is detachably connected to one end of the saw blade a1 via the drill rod 102, and the pen type drill 401 is detachably connected to one end of the mounting sleeve 103 via the drill rod 102.

[0035] The inner cavity of the sawtooth disc b101 is threadedly connected to the surface of the mounting sleeve 103. A sampling slope 5 is provided on the other side of the mounting sleeve 103, and the sampling slope 5 is provided at an angle.

[0036] The two ends of the compression spring a203 are fixedly connected to the top of the inner wall of the mounting sleeve 103 and the surface of the push plate 202, respectively; the two ends of the compression spring b209 are fixedly connected to the inner wall of the transverse groove 204 and the outer surface of the locking block 207, respectively.

[0037] The surface of the sampling bevel 5 is coated with a polytetrafluoroethylene anti-stick coating, and the edge of the bevel is provided with a sharp blade.

[0038] Mounting sleeve 103 is a 304 stainless steel mounting sleeve.

[0039] During use, the components are assembled according to the sampling requirements. When cutting externally, the saw toothed disc a1 is connected to the gun handle type electric drill 4 through the drill rod 102. When sampling internally, the saw toothed disc b101 is threaded to the 304 stainless steel mounting sleeve 103, and then the mounting sleeve 103 is connected to the pen-type electric drill 401 through the drill rod 102. In the initial state, the push plate 202 is located at the lower part of the mounting sleeve 103 under the pulling force of the compression spring a203. The locking block 207 extends out of the horizontal groove 204 under the pushing force of the compression spring b209, and its pressing inclined surface 208 faces the vertical groove 2, preparing for locking the push plate 202.

[0040] Start the gun handle type electric drill 4, the saw tooth disc a1 rotates at high speed with the drill rod 102, and uses its outer peripheral saw teeth to cut the external skin, muscle and other hard tissues of the dead cattle and sheep after freezing, quickly forming an exposure opening to provide operating space for internal organ sampling;

[0041] Switch to pen drill 401 and start it. The serrated disc b101 rotates with the mounting sleeve 103, and its radial serrations cut the internal organs and tissues. At the same time, the sampling bevel 5 (with sharp edges and a polytetrafluoroethylene non-stick coating) guides the cut sample into the mounting sleeve 103. Before sampling, the push plate 202 needs to be pushed upward. The push plate 202 slides along the vertical groove 2 through two guide rods 201. The guide rods 201 press the compression bevel 208 of the locking block 207, forcing the locking block 207 to compress the compression spring b209 and retract along the guide groove 205 through the guide block 206. When the push plate 202 moves to the top vertical position, the guide rod 201 disengages from the extrusion slope 208, and the compression spring b209 drives the locking block 207 to reset. The top of the locking block 207 extends out of the horizontal groove 204 and is inserted into the vertical groove 2, thus limiting the position of the two guide rods 201. At this time, the position of the push plate 202 is fixed, and a closed sample storage space is formed inside the mounting sleeve 103 (the push plate 202 and the inner wall of the mounting sleeve 103 are sealed by a silicone sealing ring 3, and the inner wall is mirror polished and coated with an anti-stick coating to prevent sample leakage or residue). The sample is stably stored in this space.

[0042] When the sample needs to be released, pull the lever 2010 on the two locking blocks 207. The locking blocks 207 compress the spring b209 and retract along the guide groove 205 to the horizontal groove 204, releasing the limit on the guide rod 201. At this time, the spring a203 restores its deformation, driving the push plate 202 and the guide rod 201 to move downward along the vertical groove 2. The push plate 202 pushes the sample in the sample storage space out from the sampling slope 5 to the collection container (such as a centrifuge tube), completing the sample transfer.

[0043] After the sample is pushed out, the push plate 202 can be pushed upwards again to reset, and the locking block 207 will be repositioned to prepare for the next sampling. After sampling, because the installation sleeve 103 is made of 304 stainless steel and has a smooth inner wall and is coated with an anti-stick coating, it is easy to disassemble, clean and disinfect, avoiding cross-contamination.

[0044] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Additionally, in the accompanying drawings of this utility model, the fill patterns are merely for distinguishing layers and do not constitute any other limitation.

[0045] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A post-mortem bovine ovine frozen tissue sample harvester comprising: The electric drill body, saw tooth disc a (1), saw tooth disc b (101), drill rod (102) and mounting sleeve (103). The feature is that: two vertical grooves (2) are symmetrically opened on the surface of the mounting sleeve (103), and a push plate (202) is slidably connected to the inner cavity of the two vertical grooves (2) through a guide rod (201). A compression spring a (203) is provided between the push plate (202) and the mounting sleeve (103). The surface of the mounting sleeve (103) is symmetrically provided with two horizontal grooves (204), each of the horizontal grooves (204) is connected to each of the vertical grooves (2), and the overall shape is a "7" structure; Each of the transverse grooves (204) has guide grooves (205) at both the upper and lower ends. The inner cavity of the guide groove (205) is slidably connected to a locking block (207) via a guide block (206). The bottom of the locking block (207) may be provided with a pressing slope (208). A compression spring b (209) is provided between the locking block (207) and the transverse groove (204). A pull rod (2010) is fixedly connected to the surface of the locking block (207).

2. A post-mortem bovine or ovine frozen tissue sample harvester according to claim 1, characterised in that: A sealing ring (3) is fitted on the outer surface of the push plate (202). The outer surface of the sealing ring (3) is sealed and fitted with the inner wall of the mounting sleeve (103). The sealing ring (3) is a silicone sealing ring.

3. A post-mortem bovine or ovine frozen tissue sample harvester according to claim 1, characterised in that: The inner wall of the mounting sleeve (103) is mirror polished, and the interior of the mounting sleeve (103) is coated with a polytetrafluoroethylene anti-stick coating.

4. A post-mortem bovine or ovine frozen tissue sample harvester according to claim 1, characterised in that: The electric drill body includes a gun handle type electric drill (4) and a pen type electric drill (401). The gun handle type electric drill (4) is detachably connected to one end of the sawtooth disc a (1) through the drill rod (102). The pen type electric drill (401) is detachably connected to one end of the mounting sleeve (103) through the drill rod (102).

5. A post-mortem bovine or ovine frozen tissue sample harvester according to claim 1, characterised in that: The inner cavity of the sawtooth disc b (101) is threadedly connected to the surface of the mounting sleeve (103), and a sampling inclined surface (5) is provided on the other side of the mounting sleeve (103), and the sampling inclined surface (5) is provided at an angle.

6. A post-mortem bovine or ovine frozen tissue sample harvester according to claim 1, characterised in that: The two ends of the compression spring a (203) are fixedly connected to the top of the inner wall of the mounting sleeve (103) and the surface of the push plate (202), respectively. The two ends of the compression spring b (209) are fixedly connected to the inner wall of the transverse groove (204) and the outer surface of the locking block (207), respectively.

7. A tissue sampler for frozen dead cattle and sheep according to claim 5, characterized in that: The surface of the sampling slope (5) is coated with a polytetrafluoroethylene anti-stick coating, and the edge of the slope is provided with a sharp blade.

8. A tissue sampler for frozen dead cattle and sheep according to claim 1, characterized in that: The mounting sleeve (103) is a 304 stainless steel mounting sleeve.

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