Sampling device for animal ectoparasites

Abstract

The sampling device comprises a sampling box main body, a treading plate, a sampling assembly, a collecting box and an inducing box, movable doors are arranged at the two ends of the sampling box main body, and the treading plate is connected with the movable doors through a first linkage assembly and can control opening and closing of the doors along with lifting of the treading plate; sampling comb teeth are arranged in a passing ring of the sampling assembly, so that parasites on the body surface of the animal can be scraped and output through an output pipe; the collecting box is provided with a plurality of collecting cavities which are connected with the treading plate through a second linkage assembly and can rotate to realize classified collection when the treading plate descends; the luring box is used for attracting animals into the device. Taking a mouse as an example, after the mouse is lured to enter, a series of actions are triggered to complete sampling, and operation is simple, convenient and efficient. The problems that a traditional sampling mode is low in efficiency, prone to pollution and the like are solved, automatic sampling and classified collection can be achieved, and the device has important application value in the fields of animal medicine, parazoological research and the like.

Description

Technical Field

[0001] The invention belongs to the technical field of animal sampling, and in particular relates to a sampling device for animal surface parasites. Background Art

[0002] In the fields of veterinary medicine, parasitology, and animal health management, accurately obtaining samples of animal surface parasites is a key prerequisite for in-depth research on parasite characteristics, transmission patterns, pathogenic mechanisms, and the development of effective prevention and control strategies. However, existing animal surface parasite sampling methods and devices have numerous limitations, making them difficult to meet the needs of scientific research and practical applications.

[0003] Traditional manual sampling methods, such as using tweezers or brushes to collect parasites directly from the animal's surface, are not only cumbersome and inefficient, but can also easily cause harm to the operator. Manual close-range sampling is particularly risky for aggressive, small, and agile animals, and it is difficult to ensure comprehensive and accurate sampling, making it easy to miss parasite samples and impacting the reliability of subsequent research results.

[0004] Some existing sampling devices are complex, costly, and require specialized personnel for operation and maintenance, limiting their widespread use in settings such as primary veterinary clinics, farms, and field research. Furthermore, these devices often fail to automatically collect and classify parasites, making samples susceptible to contamination during the collection process, reducing their quality and usability. Summary of the Invention

[0005] In view of the above-mentioned problems, the object of the present invention is to provide a sampling device for animal surface parasites.

[0006] The technical solution of the present invention is: a sampling device for animal surface parasites, comprising:

[0007] The sampling box body is hollow inside and has movable doors at both ends;

[0008] Two pressing plates are respectively arranged on the inner sides of both ends of the sampling box body. A plurality of springs are provided between the pressing plates and the inner bottom of the sampling box body. The pressing plates are connected to the movable doors on the corresponding sides via a first linkage assembly, which is used to drive the movable doors to close when the pressing plates descend, and to drive the movable doors to open when the pressing plates ascend;

[0009] A sampling assembly includes a passing ring disposed in the middle section of the sampling box body and sampling comb teeth movably disposed inside the passing ring, for scraping parasites off the animal's body surface using the sampling comb teeth when the animal passes through the passing ring. An output tube is provided at the lower end of the passing ring for outputting the scraped parasites.

[0010] a collection box, connected and arranged below the output tube, having a plurality of circumferentially arranged collection chambers on the collection box for collecting parasites output by the output tube; the collection box is connected to the pressure plate via a second linkage assembly, which is used to drive the collection box to rotate when the pressure plate descends, so that the plurality of collection chambers are sequentially connected to the output tube;

[0011] The attracting box is arranged at the lower inner part of the passing ring and is used for emitting attracting animals to enter the main body of the sampling box.

[0012] Furthermore, each of the movable doors comprises:

[0013] Two vertical shafts are rotatably arranged on both sides of the port of the sampling box body;

[0014] Two door bodies, each of which is fixedly connected to the side of the vertical shaft and provided with one door body, the two door bodies are symmetrically arranged and are used to open and close under the drive of the vertical shaft;

[0015] Two first bevel gears are coaxially fixedly provided at the lower end of each vertical shaft, and the bevel gears are connected to the first linkage assembly.

[0016] Furthermore, each of the first linkage components includes:

[0017] a first transverse axis, rotatably disposed on the lower side of the port of the sampling box body;

[0018] Two second bevel gears are coaxially fixedly arranged on both ends of the first transverse axis, and the two second bevel gears are respectively engaged with the first bevel gear corresponding to the same side;

[0019] Two first gears are coaxially fixed on both ends of the first horizontal axis;

[0020] Two racks are respectively vertically arranged on the side surfaces of the pedal plate, and the two racks are respectively engaged with the first gear on the corresponding side.

[0021] Furthermore, a plurality of piston channels are provided on the inner side of the through ring, a sampling comb tooth is movably provided in each of the piston channels, a limiting ring is fixedly provided on the inner side of the outlet of each piston channel, a piston head is provided at the inner end of the sampling comb tooth, and the piston head is sealingly slidably arranged in the piston channel.

[0022] Furthermore, an airbag is provided under each of the pressure plates, the upper end of the airbag is fixedly connected to the lower surface of the pressure plate, the lower end of the airbag is fixedly connected to the bottom of the sampling box body, the middle part of the airbag is connected to the side of the passing ring through a pipe, and is connected to multiple piston channels, which is used to ventilate and pressurize the piston channel when the pressure plate descends, so that the sampling comb teeth extend, and to evacuate and reduce the pressure in the piston channel when the pressure plate rises, so that the sampling comb teeth retract, and the parasites adhered between the sampling comb teeth are scraped off the limiting ring and slide into the output tube through the inner side of the passing ring.

[0023] Furthermore, the collection box includes:

[0024] A base is fixedly arranged at the bottom of the sampling box body, and a central axis is vertically arranged at the center of the base;

[0025] A box body is movably sleeved on the outside of the central axis, the collecting chambers are circumferentially arranged on the box body, and the outside of each collecting chamber is opened;

[0026] A collecting trough plate, wherein each collecting cavity is movably provided with the collecting trough plate;

[0027] A conical gear ring, fixedly sleeved on the lower outer side of the box body;

[0028] A cover plate is fixedly arranged on the top end of the central shaft. A collecting port communicating with any collecting cavity is provided on the cover plate. The collecting port is fixedly connected to the output pipe.

[0029] Furthermore, the second linkage component includes:

[0030] a second transverse axis, symmetrically arranged on both sides of the pedal plate with respect to the first transverse axis;

[0031] Two second gears are coaxially fixed on both ends of the second horizontal axis;

[0032] Two ratchet pawls are respectively arranged on the side of the pressure plate, and the two ratchet pawls are respectively engaged with the second gear on the corresponding side, and are used to drive the second gear to rotate when the pressure plate is lowered;

[0033] a third bevel gear, coaxially fixedly disposed in the middle of the second transverse axis;

[0034] The fourth bevel gear is rotatably arranged at the bottom of the sampling box body, one side of the fourth bevel gear is meshed with the third bevel gear, and the other side of the fourth bevel gear is meshed with the bevel gear ring.

[0035] Furthermore, a bell is hung on the movable door, which is used to ring when the door is opened or closed, scaring animals to escape from the opening on the other side.

[0036] The working method of the present invention is as follows: an attractant is placed in the attractant box to attract animals. For example, mice are attracted by the attractant and enter from either end of the sampling box body. After entering, the mouse steps on the pressure plate. Under the action of its weight, the pressure plate descends, and the movable door is driven to close by the first linkage component to prevent the mouse from escaping along the original path. At the same time, the box body of the collection box is driven to rotate by the second linkage component, so that multiple collection chambers are connected to the output tube in sequence, and the air bag is compressed by the pressure plate, and the gas in the air bag is squeezed into the piston channel passing through the ring, so that the sampling comb teeth extend, and the movable door is closed. The bell rings, scaring the mouse and forcing it to escape from the other end. The mouse drills through the passing ring while escaping, and the sampling comb teeth scrape off the parasites on its body surface. After the mouse escapes, the pressure plate rises and resets under the action of the spring, driving the movable door to open and the airbag to recover, extracting the gas in the piston channel, causing the sampling comb teeth to retract, and the parasites adhered between the sampling comb teeth are scraped off the limiting ring, slide down through the inner side of the passing ring, and slide into the collection chamber of the sampling box through the output tube. During the rising process, the pressure plate will not drive the box body to rotate due to the action of the ratchet pawl; repeat the above steps to classify and collect the parasites on the body surfaces of multiple mice.

[0037] Compared with the prior art, the present invention has the following beneficial effects:

[0038] The present invention can emit attractants through the attractant box to attract animals to enter the sampling box body, increase the probability of animals entering the device, and make sampling easier. After the animal enters, it steps on the pressure plate, which can automatically close the movable door to prevent it from escaping the original route, ensuring that the animal passes through the loop according to the set route, and increasing the chance of parasites being scraped. When the pressure plate descends, it drives the collection box to rotate, and multiple collection chambers are connected to the output tube in turn to achieve the classified collection of parasites from different animals, which is convenient for subsequent research and analysis. The cooperation between the air bag and the sampling comb teeth controls the extension and retraction of the sampling comb teeth at different stages of animal entry and escape, effectively scraping parasites and making them fall into the collection box, thereby improving sampling efficiency.

[0039] The circumferentially arranged, open-outer collection chambers of the present invention, combined with a removable collection slot, facilitate sample retrieval and storage, while also preventing cross-contamination between samples. Each independent collection chamber ensures the integrity and purity of each sample, facilitating accurate analysis of parasite characteristics such as species and abundance.

[0040] The present invention utilizes the animal's own gravity and mechanical linkage components to achieve automatic sampling, collection and other operations, without the need for complex manual intervention and electronic component control, reducing operational difficulty and labor intensity, and does not involve complex circuit connections, further reducing use and maintenance costs.

[0041] The present invention is suitable for sampling parasites on the surface of various animals. Taking mice as an example, it can be extended to other common animals carrying parasites. It provides a universal sampling tool for animal disease research, parasite prevention and control and other fields, which is helpful for the development of related scientific research work and the formulation of practical prevention and control measures. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0043] Figure 2 It is a schematic diagram of the internal structure of the sampling box of the present invention;

[0044] Figure 3 It is a schematic diagram of the movable door structure of the present invention;

[0045] Figure 4 yes Figure 3 Schematic diagram of the enlarged structure of part A;

[0046] Figure 5 This is a top view of the connection between the movable door and the stepping plate of the present invention;

[0047] Figure 6 yes Figure 5 Schematic diagram of the enlarged structure of part B;

[0048] Figure 7 It is a schematic structural diagram of the sampling assembly of the present invention;

[0049] Figure 8 This is a schematic diagram of the connection structure between the piston channel and the sampling comb teeth of the present invention;

[0050] Figure 9 It is a schematic structural diagram of the collection box of the present invention.

[0051] Among them, 1. sampling box body; 11. movable door; 111. vertical axis; 112. door body; 113. first bevel gear; 114. bell; 2. pressure plate; 21. spring; 22. first linkage assembly; 221. first horizontal axis; 222. second bevel gear; 223. first gear; 224. rack; 23. airbag; 3. sampling assembly; 31. passing ring; 311. piston channel; 312. limiting ring; 32. sampling comb teeth; 321. piston head; 33. output tube; 4. collecting box; 41. collecting chamber; 42. second linkage assembly; 421. second horizontal axis; 422. second gear; 423. ratchet pawl; 424. third bevel gear; 425. fourth bevel gear; 43. base; 44. center axis; 45. box body; 46. collecting trough plate; 47. bevel gear ring; 48. cover plate; 5. bait box. DETAILED DESCRIPTION

[0052] The following is combined with Figure 1 To the attached Figure 9 , a detailed description of the specific embodiments of the present invention is provided. In the description of the present invention, it should be understood that the terms "center," "upper," "lower," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are intended only to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed, or operate in a specific direction. Therefore, they should not be construed as limiting the present invention.

[0053] The terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, features specified as "first" or "second" may explicitly or implicitly include one or more of such features; and in the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0054] Example: Figure 1 As shown, a sampling device for animal surface parasites includes a sampling box body 1, a pressing plate 2, a sampling component 3, a collection box 4 and an attractant box 5. Among them:

[0055] The sampling box body 1 is hollow inside and has movable doors 11 at both ends. Figure 2-3 As shown, each movable door 11 includes a vertical shaft 111, a door body 112 and a first bevel gear 113; the two vertical shafts 111 are rotatably arranged on both sides of the port of the sampling box body 1; a door body 112 is fixedly connected to the side of each vertical shaft 111, and the two door bodies 112 are symmetrically arranged and are used to open and close under the drive of the vertical shaft 111; a first bevel gear 113 is coaxially fixed to the lower end of each vertical shaft 111, and the first bevel gear 113 is connected to the first linkage assembly 22. A bell 114 is hung on the movable door 11, which is used to ring when the door body 112 is opened and closed, scaring the animal to escape from the opening on the other side;

[0056] Two pressing plates 2 are respectively arranged on the inner sides of both ends of the sampling box body 1. A plurality of springs 21 are provided between the pressing plates 2 and the inner bottom of the sampling box body 1. The pressing plates 2 are connected to the movable doors 11 on the corresponding sides through a first linkage assembly 22, which is used to drive the movable doors 11 to close when the pressing plates 2 are lowered, and to drive the movable doors 11 to open when the pressing plates 2 are raised. Figure 5-6As shown, each first linkage assembly 22 includes a first transverse shaft 221, a second bevel gear 222, a first gear 223 and a rack 224; the first transverse shaft 221 is rotatably arranged on the lower side of the port of the sampling box body 1; the two second bevel gears 222 are coaxially fixedly arranged on both ends of the first transverse shaft 221, and the two second bevel gears 222 are respectively meshed with the first bevel gears 113 corresponding to the same side; the two first gears 223 are coaxially fixedly arranged on both ends of the first transverse shaft 221; the two racks 224 are respectively vertically arranged on the side of the pressing plate 2, and the two racks 224 are respectively meshed with the first gears 223 on the corresponding sides;

[0057] like Figure 7-8 As shown, the sampling assembly 3 includes a through ring 31 arranged in the middle section of the sampling box body 1 and a sampling comb 32 movably arranged on the inner side of the through ring 31, which is used to scrape off the parasites on the animal's body surface using the sampling comb 32 when the animal passes through the through ring 31. An output tube 33 is provided at the lower end of the through ring 31 for outputting the scraped parasites. A plurality of piston channels 311 are provided on the inner side of the through ring 31, and a sampling comb 32 is movably provided in each piston channel 311. A limiting ring 312 is fixedly provided on the inner side of the outlet of each piston channel 311, and a piston head 321 is provided at the inner end of the sampling comb 32. The piston head 321 is sealingly slidably arranged on the movable In the plug channel 311, an air bag 23 is provided under each pressing plate 2. The upper end of the air bag 23 is fixedly connected to the lower surface of the pressing plate 2, and the lower end of the air bag 23 is fixedly connected to the bottom of the sampling box body 1. The middle part of the air bag 23 is connected to the side of the through ring 31 through a pipe, and is communicated with multiple piston channels 311. When the pressing plate 2 descends, air is ventilated and pressurized in the piston channel 311 to extend the sampling comb teeth 32. When the pressing plate 2 rises, air is evacuated and decompressed in the piston channel 311 to retract the sampling comb teeth 32, and parasites adhered between the sampling comb teeth 32 are scraped off by the limiting ring 312 and slide into the output tube 33 through the inner side of the through ring 31.

[0058] The collecting box 4 is connected and arranged below the output pipe 33. Figure 9As shown, the collecting box 4 is provided with a plurality of circumferentially arranged collecting chambers 41 for collecting the parasites output by the output tube 33. The collecting box 4 is connected to the pressing plate 2 by a second linkage assembly 42, which is used to drive the collecting box 4 to rotate when the pressing plate 2 descends, so that the plurality of collecting chambers 41 are connected to the output tube 33 in sequence. The collecting box 4 includes a base 43, a box body 45, a collecting slot plate 46, a bevel gear ring 47 and a cover plate 48; the base 43 is fixedly arranged at the bottom of the sampling box body 1, and a central axis 44 is vertically provided at the center of the base 43; the box body 45 is movably sleeved on the outside of the central axis 44, and the collecting chambers 41 are circumferentially arranged on the box body 45, and the outside of each collecting chamber 41 is opened; a collecting slot plate 46 is movably inserted in each collecting chamber 41; the bevel gear ring 47 is fixedly sleeved on the lower part of the outer side of the box body 45; the cover plate 48 is fixedly arranged at the top of the central axis 44, and the cover plate 48 is provided with a The collecting port communicated with the cavity 41 is fixedly connected to the output tube 33, and the second linkage assembly 42 includes a second transverse axis 421, a second gear 422, a ratchet pawl 423, a third bevel gear 424 and a fourth bevel gear 425; the second transverse axis 421 and the first transverse axis 221 are symmetrically arranged on both sides of the pressing plate 2; the two second gears 422 are coaxially fixedly arranged on both ends of the second transverse axis 421; the two ratchet pawls 423 are respectively arranged on the side of the pressing plate 2, and the two ratchet pawls 423 are respectively meshed with the second gear 422 on the corresponding sides, for driving the second gear 422 to rotate when the pressing plate 2 descends; the third bevel gear 424 is coaxially fixedly arranged in the middle of the second transverse axis 421; the fourth bevel gear 425 is rotatably arranged at the bottom inner side of the sampling box body 1, and one side of the fourth bevel gear 425 is meshed with the third bevel gear 424, and the other side of the fourth bevel gear 425 is meshed with the bevel gear ring 47;

[0059] The attractant box 5 is arranged at the lower inner side of the through ring 31 and is used for emitting attractant to attract animals to enter the sampling box body 1 .

[0060] The working method of the above embodiment is as follows: an attractant is placed in the attractant box 5 to attract animals. Taking mice as an example, the mice enter from either end of the sampling box body 1 under the attraction of the attractant. After entering, the mice step on the pressure plate 2. Under the action of their weight, the pressure plate 2 drops, and the movable door 11 is driven to close through the first linkage component 22 to prevent the mice from escaping along the original path. At the same time, the box body 45 of the collection box 4 is driven to rotate through the second linkage component 42, so that the multiple collection chambers 41 are connected to the output tube 33 in sequence, and the air bag 23 is compressed by the pressure plate 2. The gas in the air bag 23 is squeezed into the piston channel 311 through the ring 31, so that the sampling comb teeth 32 extend, and the movable door 11 drives the bell when closing. The clang 114 sounds, scaring the mouse and forcing it to escape from the other end. When escaping, the mouse drills through the passing ring 31, and the sampling comb teeth 32 scrape off the parasites on its body surface. After the mouse escapes, the pressing plate 2 rises and resets under the action of the spring 21, driving the movable door 11 to open, and driving the airbag 23 to recover, extracting the gas in the piston channel 311, causing the sampling comb teeth 32 to retract, and the parasites adhered between the sampling comb teeth 32 are scraped off the limiting ring 312, slide down through the inner side of the passing ring 31, and slide into the collection chamber 41 of the sampling box 4 through the output tube 33. During the rising process, the pressing plate 2 will not drive the box body 45 to rotate due to the action of the ratchet claw 423; repeat the above steps to classify and collect the surface parasites of multiple mice.

[0061] The specific embodiments described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above are only specific embodiments of the present invention and do not limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention are included in the scope of protection of the present invention.

Claims

1. A sampling device for animal surface parasites, characterized in that: include: The sampling box body (1) is hollow inside and has movable doors (11) at both ends; Two pressing plates (2) are respectively arranged on the inner sides of both ends of the sampling box body (1); a plurality of springs (21) are provided between the pressing plates (2) and the inner bottom of the sampling box body (1); the pressing plates (2) are connected to the movable door (11) on the corresponding side via a first linkage assembly (22), and are used to drive the movable door (11) to close when the pressing plates (2) descend, and to drive the movable door (11) to open when the pressing plates (2) ascend; The sampling assembly (3) comprises a passing ring (31) arranged in the middle section of the sampling box body (1) and sampling comb teeth (32) movably arranged inside the passing ring (31), and is used to scrape off parasites on the surface of the animal body by using the sampling comb teeth (32) when the animal passes through the passing ring (31). The lower end of the passing ring (31) is provided with an output tube (33) for outputting the scraped parasites; A collecting box (4) is connected and arranged below the output tube (33). The collecting box (4) is provided with a plurality of circumferentially arranged collecting chambers (41) for collecting parasites outputted by the output tube (33). The collecting box (4) is connected to the pressure plate (2) via a second linkage assembly (42) for driving the collecting box (4) to rotate when the pressure plate (2) descends, so that the plurality of collecting chambers (41) are sequentially connected to the output tube (33). The attracting box (5) is arranged at the lower inner part of the passing ring (31) and is used for emitting attracting animals to enter the sampling box body (1).

2. A sampling device for animal surface parasites according to claim 1, characterized in that: Each of the movable doors (11) comprises: Two vertical shafts (111) are rotatably arranged on both sides of the port of the sampling box body (1); Two door bodies (112), each of the vertical shafts (111) is fixedly connected to a side surface thereof with one of the door bodies (112), and the two door bodies (112) are symmetrically arranged and are used for opening and closing under the drive of the vertical shaft (111); Two first bevel gears (113) are coaxially fixedly provided at the lower end of each vertical shaft (111), and the first bevel gear (113) is connected to the first linkage assembly (22).

3. A sampling device for animal surface parasites according to claim 2, characterized in that: Each of the first linkage components (22) comprises: A first transverse shaft (221) is rotatably disposed on the lower side of the port of the sampling box body (1); Two second bevel gears (222) are coaxially fixedly arranged on both ends of the first transverse axis (221), and the two second bevel gears (222) are respectively engaged with the first bevel gear (113) corresponding to the same side; Two first gears (223) are coaxially fixedly arranged on both ends of the first transverse axis (221); Two racks (224) are respectively vertically arranged on the side of the pressing plate (2), and the two racks (224) are respectively engaged with the first gear (223) on the corresponding side.

4. A sampling device for animal surface parasites according to claim 1, characterized in that: A plurality of piston channels (311) are provided on the inner side of the through ring (31), a sampling comb tooth (32) is movably provided in each of the piston channels (311), a limiting ring (312) is fixedly provided on the inner side of the outlet of each piston channel (311), a piston head (321) is provided at the inner end of the sampling comb tooth (32), and the piston head (321) is sealingly slidably provided in the piston channel (311).

5. A sampling device for animal surface parasites according to claim 4, characterized in that: An air bag (23) is provided below each of the stepping plates (2), the upper end of the air bag (23) is fixedly connected to the lower surface of the stepping plate (2), the lower end of the air bag (23) is fixedly connected to the inner bottom of the sampling box body (1), the middle part of the air bag (23) is connected to the side of the through ring (31) through a pipeline, and is communicated with a plurality of the piston channels (311), and is used for ventilating and pressurizing the piston channel (311) when the stepping plate (2) descends, so that the sampling comb teeth (32) extend, and when the stepping plate (2) rises, the piston channel (311) is evacuated and decompressed, so that the sampling comb teeth (32) retract, and the parasites adhered between the sampling comb teeth (32) are scraped off the limiting ring (312) and slide into the output tube (33) through the inner side of the through ring (31).

6. The sampling device for animal surface parasites according to claim 1, characterized in that: The collecting box (4) comprises: A base (43) is fixedly arranged at the bottom of the sampling box body (1), and a central axis (44) is vertically arranged at the center of the base (43); A box body (45) is movably sleeved on the outside of the central axis (44), the collecting chambers (41) are circumferentially arranged on the box body (45), and the outside of each collecting chamber (41) is opened; A collecting trough plate (46), wherein each collecting cavity (41) is movably inserted with the collecting trough plate (46); A conical gear ring (47) is fixedly sleeved on the lower outer side of the box body (45); A cover plate (48) is fixedly arranged on the top end of the central shaft (44). The cover plate (48) is provided with a collecting port communicating with any collecting chamber (41), and the collecting port is fixedly connected to the output pipe (33).

7. A sampling device for animal surface parasites according to claim 6, characterized in that: The second linkage component (42) includes: A second transverse axis (421) is symmetrically arranged on both sides of the pedaling plate (2) with respect to the first transverse axis (221); Two second gears (422) are coaxially fixedly arranged on both ends of the second transverse axis (421); Two ratchet pawls (423) are respectively arranged on the side of the pressure plate (2), and the two ratchet pawls (423) are respectively engaged with the second gear (422) on the corresponding side, and are used to drive the second gear (422) to rotate when the pressure plate (2) descends; A third bevel gear (424) is coaxially fixedly disposed at the middle portion of the second transverse axis (421); The fourth bevel gear (425) is rotatably arranged at the bottom of the sampling box body (1), one side of the fourth bevel gear (425) is meshed with the third bevel gear (424), and the other side of the fourth bevel gear (425) is meshed with the bevel gear ring (47).

8. The sampling device for animal surface parasites according to claim 1, characterized in that: The movable door (11) is provided with a bell (114) for ringing when the door body (112) is opened or closed, scaring animals to escape from the opening on the other side.

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