A device for counting effective burrow entrances of ground rodents in grasslands and its usage method

Abstract

This invention discloses an effective burrow entrance counting device for grassland rodents and its usage method. The device includes a first housing, a triggering mechanism, a transmission mechanism, a first indicating mechanism, and a mechanical counter. The first housing has a fixed base and a clamp. The triggering mechanism includes a plate connected to the fixed base via a rotating shaft, with a first spring underneath. The transmission mechanism includes a first transmission component and a second transmission component, both connected to the rotating shaft and the second transmission component. The first indicating mechanism includes a marker flag and a pop-up component, with the marker flag connected to the second transmission component via the pop-up component. The mechanical counter is housed within the first housing and connected to the first transmission component via gears. This invention achieves accurate counting by triggering the transmission mechanism, which in turn drives the counting component to accurately accumulate one count, and the marker flag on the first indicating component to pop up. This is accomplished by a physical mechanical structure, eliminating interference from subjective human judgment and ensuring the objectivity and accuracy of the counting results.

Description

Technical Field

[0001] This invention relates to the field of grassland rodent control technology, specifically a grassland ground rodent burrow counting device and its usage method. Background Technology

[0002] Grassland ecosystems, as the largest terrestrial ecosystem in my country, hold crucial strategic significance in maintaining national ecological security and ensuring the sustainable development of animal husbandry. However, frequent occurrences of grassland rodent infestations (mainly caused by ground rodents such as plateau pikas and voles) have become one of the core biological hazards threatening grassland health. Accurately obtaining the relative population density of ground rodents is a key prerequisite for scientific rodent control, and the statistical analysis of the number of effective burrow entrances is a core indicator for assessing their relative population density.

[0003] Currently, the traditional method for counting effective ground rodent burrows mainly relies on manual surveys, especially the "burrow opening and sealing method." This method requires surveyors to manually inspect all burrows within a selected sample plot and physically fill them in. After 24-48 hours, they return to check and count the burrows that have been reopened by rodents, which are then considered "effective burrows." The determination of effective burrows in this method is highly dependent on the surveyors' subjective experience. For burrows that have been opened due to improper filling, natural factors (wind, rain), or disturbance by small animals, judging whether the burrow has been used by rodents solely by visual observation cannot eliminate subjective interference factors, making it easy to make misjudgments. The judgment criteria differ between different surveyors, and even among the same surveyor at different times, making it difficult to provide stable, reliable, and accurate data support. Summary of the Invention

[0004] The present invention aims to at least partially solve one of the technical problems in the above-mentioned technologies.

[0005] Therefore, the purpose of this invention is to propose an effective counting device for rat burrows on grassland and its usage method. The device body is fixed by an adjustable diameter clamp to prevent displacement. The triggering mechanism drives the counting component to accurately accumulate once and the flag of the first indicator component to pop up through the transmission mechanism. This process is completed entirely by physical mechanical structure, eliminating the interference of human subjective judgment and ensuring the objectivity and accuracy of the counting results.

[0006] To solve the above problems, the technical solution of the present invention is a device for counting effective burrow entrances of rats on grassland, comprising: The first housing is provided with a fixing seat and a clamp, the diameter of which can be adjusted; A triggering mechanism includes a plate body connected to a fixed base via a rotating shaft. A first spring is provided under the plate body for resetting the plate body. The transmission mechanism includes a first transmission component and a second transmission component, wherein the first transmission component is connected to the rotating shaft and the second transmission component respectively; The first indicating mechanism includes a flag and a pop-up assembly, wherein the flag is connected to a second transmission assembly via the pop-up assembly; A mechanical counter is disposed inside the first housing. The mechanical counter is connected to the first transmission assembly via gears. The mechanical counter is used to count the number of times.

[0007] Furthermore, the ratchet component includes a ratchet plate and a ratchet wheel. The ratchet plate is connected to the first drive shaft via a retaining ring, the ratchet wheel is connected to a gear, and the ratchet plate is adapted to the ratchet groove of the ratchet wheel.

[0008] Furthermore, the pop-up assembly includes a second housing, a push rod, a push component, and a limiting component. The second housing is connected to the first housing. The push rod is disposed inside the second housing. A first sleeve is provided on the second housing. The flagpole of the identification flag is disposed inside the first sleeve. The push component is connected to the push rod through a boss. The limiting component is disposed inside the second housing and is connected to the push rod through a boss.

[0009] Furthermore, the limiting structure includes a push seat, which is connected to the second housing via a fourth spring, and the push seat is connected to the boss via a limiting block.

[0010] Furthermore, it also includes a second indicating mechanism, which includes a sliding seat connected to a fourth transmission shaft via a cam, and the sliding seat is provided with a push block and two fixing blocks respectively.

[0011] Furthermore, the first transmission assembly includes a first transmission shaft, a ratchet component, and a second transmission shaft. The first transmission shaft is connected to the rotating shaft via gears. The ratchet component is disposed on the first transmission shaft and is used to prevent the gears from reversing. The second transmission shaft is connected to the first transmission shaft via gears.

[0012] Furthermore, the second transmission assembly includes a third transmission shaft and a fourth transmission shaft, wherein the third transmission shaft is connected to the second transmission shaft via gears, and the fourth transmission shaft is connected to the third transmission shaft via gears.

[0013] Furthermore, the pushing component includes a second sleeve, which is connected to the boss via a second spring and to the second housing via a third spring. The second sleeve is provided with a rack and a rod, the rack being connected to the fourth transmission shaft via gears, and the rod being used to release the limiting component from limiting the pushing rod.

[0014] Furthermore, the push base is provided with a push groove, which is inclined towards the side closer to the limiting block, and the insertion rod is adapted to the push groove.

[0015] A method for using a grassland ground rodent effective burrow entrance counting device includes: The device is deployed by placing the first housing at the entrance of a mouse burrow on the grassland to be tested, and adjusting the diameter of the clamp to make it fit tightly and secure it to the edge of the burrow. The clamp is used to prevent the first housing from shifting. Trigger preparation: Position the plate of the trigger mechanism on the necessary path of the hole passage, and push the plate to flip when the ground mouse exits the hole; Mechanical counting: The flipped plate rotates via a rotating shaft, which drives a first transmission assembly to rotate. The first transmission assembly then drives a mechanical counter to count via gears. Visual indication: The first transmission component drives the pushing component through the second transmission component, and the pushing component releases the limiting component from the pushing rod, causing the pushing rod to pop up the identification flag; After the device resets and the ground mouse triggers, the first spring pulls the plate back to its initial position, preparing for the next trigger. The ratchet component prevents the mechanical counter and the first indicator component from resetting synchronously.

[0016] After the monitoring period ends, the cumulative number of data reads is recorded on-site from the mechanical counter. The monitoring period is 12-24 hours.

[0017] The advantages of this invention compared to existing technologies are: This invention provides an effective counting device for rat burrows on grasslands and its usage method. Through the cooperation of a purely mechanical triggering mechanism and a transmission mechanism, each time a rat passes through a burrow, it pushes the plate to rotate. The transmission mechanism drives the counter to accurately accumulate the count once, and a pop-up component pops up a marker flag to achieve objective counting. This eliminates the interference of human subjective judgment and ensures that the counting results remain accurate and consistent in different scenarios and for different users. Attached Figure Description

[0018] Figure 1 This is a three-dimensional schematic diagram of an effective rat burrow counting device for grasslands according to the present invention. Figure 1 .

[0019] Figure 2 This is a three-dimensional schematic diagram of an effective burrow entrance counting device for rats on grassland, according to the present invention. Figure 2 .

[0020] Figure 3 yes Figure 1 3D diagram with the first shell removed Figure 1 .

[0021] Figure 4 yes Figure 1 A three-dimensional schematic diagram of the first indicator mechanism.

[0022] Figure 5 yes Figure 4 Enlarged cross-sectional view at point A in the middle.

[0023] Figure 6 yes Figure 1 A three-dimensional schematic diagram of the structure near the second indicator mechanism.

[0024] Figure 7 yes Figure 1 3D diagram with the first shell removed Figure 2 .

[0025] Figure 8 yes Figure 7 A three-dimensional schematic diagram of the structure near the third gear.

[0026] As shown in the figure: 1. First housing; 2. Fixed base; 3. Triggering mechanism; 301. Rotating shaft; 302. First helical gear; 303. Plate; 304. First spring; 4. Clamp; 5. Mechanical counter; 6. First indicating mechanism; 601. Second housing; 602. Push rod; 603. Boss; 604. Push base; 605. Push groove; 606. First sleeve; 607. Limiting block; 608. Second sleeve; 609. Rack; 610. Insert rod; 611. Second spring; 612. Third spring; 613. Identification flag; 614. Fourth spring; 7. Second Indicating mechanism; 701, sliding seat; 702, push block; 703, fixed block; 8, first transmission assembly; 801, first transmission shaft; 802, first gear; 803, second gear; 804, second transmission shaft; 805, second helical gear; 806, third helical gear; 807, third gear; 9, second transmission assembly; 901, third transmission shaft; 902, fourth transmission shaft; 903, fourth gear; 904, fifth gear; 905, sixth gear; 906, cam; 10, ratchet assembly; 1001, retaining ring; 1002, ratchet plate; 1003, ratchet. Detailed Implementation

[0027] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this disclosure. Rather, they are merely examples of apparatuses consistent with some aspects of this disclosure as detailed in the appended claims.

[0028] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0029] like Figures 1 to 3 As shown, this embodiment proposes an effective burrow counting device for ground rodents in grasslands, including a first housing 1, a triggering mechanism 3, a transmission mechanism, a first indicating mechanism 6, and a mechanical counter 5. The first housing 1 is provided with a fixed base 2 and a clamp 4, the clamp 4 having an adjustable diameter. The triggering mechanism 3 includes a plate 303, which is connected to the fixed base 2 via a rotating shaft 301. A first spring 304 is provided under the plate 303 for resetting the plate 303. The transmission mechanism includes a first transmission component 8 and a second transmission component 9, which are connected to the rotating shaft 301 and the second transmission component 9 respectively. The first indicating mechanism 6 includes a marker flag 613 and a pop-up component, which are connected to the second transmission component 9 via the pop-up component. The mechanical counter 5 is located inside the first housing 1 and is connected to the first transmission component 8 via gears. The mechanical counter 5 is used to count the number of times the rodents enter.

[0030] It should be noted that the top front side of the first housing 1 is provided with a U-shaped groove, the fixing seat 2 is fixedly connected to the side wall of the top of the U-shaped groove, and the clamp 4 is sleeved on the fixing seat 2. Two first through holes are opened on one side of the upper rear part of the first housing 1, and fixing ears are fixedly connected to both sides of the first housing 1. One of the first through holes displays the reading on the units counting wheel of the mechanical counter 5, and the other first through hole limits the reading on the tens counting wheel of the mechanical counter 5. The clamp 4 is made of spring steel with a width of 1.5cm and a thickness of 2mm. The ring structure has continuous toothed grooves and an adjustment range of 5-15cm, so as to adapt to the burrow diameter of common ground mice such as plateau pikas and field mice. The inner side of the steel ring is pasted with an anti-slip rubber pad, and the outer side is provided with a locking buckle to achieve self-adaptive fixation of the burrow and prevent the first housing 1 from shifting.

[0031] Furthermore, connecting rings are fixedly connected to both sides of the bottom of the plate 303. The two connecting rings are respectively sleeved on the rotating shaft 301, so that the plate 303 and the rotating shaft 301 rotate together. The front and rear sides of the rotating shaft 301 are symmetrically provided with first stops. The four first stops are respectively connected to the fixed seat 2. The two front first stops are lower than the two rear stops. The two rear stops make the plate 303 flush with the rear of the first shell 1 when it rotates to a horizontal state. The two ends of the rotating shaft 301 are respectively connected to the fixed seat 2 through bearings. The outer wall of the rotating shaft 301 is wound with first helical teeth 302. One end of the first spring 304 is fixedly connected to the plate 303, and the other end is fixedly connected to the inner wall of the clamp 4. The first spring 304 provides a restoring force of 0.5N, so that only rodents weighing ≥50g can trigger the rotation of the plate 303, avoiding accidental contact by small insects.

[0032] Specifically, by using clamp 4 to fit the grass around the hole, there is no need to dig up the soil, thus avoiding the aggravation of grass degradation. Through the purely mechanical triggering mechanism 3, the kinetic energy of the rodents passing through the hole is used to achieve objective counting, eliminate subjective interference, and ensure data consistency for different scenarios and different users.

[0033] To clearly illustrate the previous embodiment, in one embodiment of the present invention, as follows: Figures 4 to 5 As shown, the pop-up assembly includes a second housing 601, a push rod 602, a push component, and a limiting component. The second housing 601 is connected to the first housing 1. The push rod 602 is disposed inside the second housing 601. A first sleeve 606 is provided on the second housing 601. The flagpole of the indicator flag is disposed inside the first sleeve 606. The push component is connected to the push rod 602 through a boss 603. The limiting component is disposed inside the second housing 601 and is connected to the push rod 602 through a boss 603.

[0034] It should be noted that the second housing 601 is inserted through the front part of the first housing 1 away from the first through hole, and the push rod 602 is inserted through the second housing 601. The outer wall of the push rod 602 is fitted with a boss 603, which is narrow at the bottom and wide at the top. The top of the push rod 602 abuts against the bottom of the flagpole of the indicator flag, and the bottom of the push rod 602 is fixedly connected to a second stop. The second stop is used to prevent the push component from falling and disengaging from the push rod 602.

[0035] Furthermore, the pushing component includes a second sleeve 608, which is connected to the boss 603 via a second spring 611 and to the second housing 601 via a third spring 612. The second sleeve 608 is provided with a rack 609 and a rod 610.

[0036] It should be noted that the second sleeve 608 is sleeved on the push rod 602 and slidably connected to the push rod 602. One end of the second spring 611 abuts against the boss 603 and the other end abuts against the second sleeve 608. One end of the third spring 612 abuts against the second housing 601 and the other end abuts against the insertion rod 610. The top end of the insertion rod 610 is provided with an inclined surface.

[0037] Furthermore, the limiting structure includes a push seat 604, which is connected to the second housing 601 via a fourth spring 614. The push seat 604 is connected to the boss 603 via a limiting block 607. The push seat 604 is provided with a push groove 605, which is inclined towards the side closer to the limiting block 607. The insertion rod 610 is adapted to the push groove 605.

[0038] It should be noted that the push seat 604 is slidably connected to the second housing 601. One end of the fourth spring 614 abuts against the inner wall of the second housing 601, and the other end abuts against the push seat 604. The bottom of the limiting block 607 is engaged with the top of the boss 603. The second housing 601 is provided with a second through hole at the bottom of the push seat 604. The top end of the insertion rod 610 passes through the second through hole and is inserted into the push groove 605. The inclined surface of the insertion rod 610 is parallel to the inner wall of the push groove 605 on the side near the fourth spring 614.

[0039] To clearly illustrate the previous embodiment, in one embodiment of the present invention, as follows: Figure 6 As shown, it also includes a second indicating mechanism 7, which includes a sliding seat 701, on which a push block 702 and two fixing blocks 703 are respectively provided.

[0040] It should be noted that a third through hole is provided on the rear side of the first housing 1 away from the first through hole. The sliding seat 701 is slidably connected to the inside of the first housing 1. The sliding seat 701 is L-shaped. The third through hole is used to display two fixing blocks 703. The fixing block 703 closer to the push block 702 is coated with green, and the fixing block 703 further away from the push block is coated with red.

[0041] To clearly illustrate the previous embodiment, in one embodiment of the present invention, as follows: Figure 7 and Figure 8 As shown, the first transmission assembly 8 includes a first transmission shaft 801, a ratchet 1003 component 10, and a second transmission shaft 804. The first transmission shaft 801 is connected to the rotating shaft 301 via gears. The ratchet 1003 component 10 is disposed on the first transmission shaft 801 and is used to prevent the gears from reversing. The second transmission shaft 804 is connected to the first transmission shaft 801 via gears.

[0042] Furthermore, the ratchet 1003 component 10 includes a ratchet 1002 and a ratchet 1003. The ratchet 1002 is connected to the first drive shaft 801 through a retaining ring 1001, and the ratchet 1003 is connected to a gear. The ratchet 1002 is adapted to the ratchet groove of the ratchet 1003.

[0043] It should be noted that one end of the first drive shaft 801 is connected to the fixed seat 2 by a bearing, and the other end is connected to the inner wall of the first housing 1 by a bearing. A first gear 802 is sleeved on one side of the outer wall of the first drive shaft 801, and the other side is connected to the second gear 803 through the ratchet 1003 component 10. The first gear 802 is meshed with the first helical tooth 302 for transmission. The ratchet 1002 is connected to the first drive shaft 801 through the fixed ring 1001. The ratchet 1003 is connected to the second gear 803. The ratchet 1002 is meshed with the ratchet groove of the ratchet 1003 for transmission. A third helical tooth 806 is wound around one side of the outer wall of the second drive shaft 804, and a third gear 807 is sleeved on the other side. A second helical tooth 805 is provided between the third helical tooth 806 and the third gear 807. The second helical tooth 805 is wound around the outer wall of the second drive shaft 804. The second helical tooth 805 is meshed with the second gear 803 for transmission. The third gear 807 is meshed with the seventh gear of the mechanical counter 5 for transmission.

[0044] To clearly illustrate the previous embodiment, in one embodiment of the present invention, as follows: Figure 6 As shown, the second transmission assembly 9 includes a third transmission shaft 901 and a fourth transmission shaft 902. The third transmission shaft 901 is connected to the second transmission shaft 804 via gears, and the fourth transmission shaft 902 is connected to the third transmission shaft 901 via gears.

[0045] Furthermore, a fourth gear 903 is sleeved on one side of the outer wall of the third drive shaft 901, and a fifth gear 904 is sleeved on the other side. A sixth gear 905 is sleeved on one side of the outer wall of the fourth drive shaft 902, and a cam 906 is sleeved on the other side. The fourth gear 903 is meshed with the third helical gear 806 for transmission, and the fifth gear 904 is meshed with the sixth gear 905 for transmission. The cam 906 is used to push the sliding seat 701 to slide within the first housing 1. The sixth gear 905 is meshed with the rack 609 for transmission.

[0046] In summary, the present invention provides a method for using an effective burrow counting device for grassland rats, comprising: The device is deployed by placing the first housing 1 at the entrance of a mouse hole on the grassland to be tested. The diameter of the clamp 4 is adjusted to make it fit tightly against and secure it to the edge of the hole. The clamp 4 is used to prevent the first housing 1 from shifting. Trigger preparation: Position the plate 303 of the triggering mechanism 3 on the necessary path of the hole passage. When the ground mouse exits the hole, push the plate 303 to flip. The mechanical counter is operated by rotating the first transmission component 8 via the rotating shaft 301. The first transmission component 8 drives the mechanical counter 5 to count via gears. Visual indication: The first transmission component 8 drives the push component through the second transmission component 9, and the push component releases the limit component from the push rod 602, causing the push rod 602 to pop up the identification flag 613; After the device is reset and triggered by the ground mouse, the first spring 304 pulls the plate 303 back to the initial position, ready for the next trigger. The ratchet 1003 component 10 prevents the mechanical counter 5 and the first indicator component from being reset synchronously. Data reading: After the monitoring cycle ends, the cumulative number of times displayed on the mechanical counter 5 is read on-site. The monitoring cycle is 12-24 hours.

[0047] It should be noted that within the monitoring area, sampling points are laid out in a 50m*50m grid. At each active opening (judged by fresh soil mounds, footprints, and the smoothness of the opening), this device is installed. The clamp 4 is fitted into the opening, the tooth groove is adjusted to match the diameter, and the clamp 4 is locked to ensure that the plate 303 fits the opening channel. The installation time is ≤10 seconds per unit, and it can be operated by a single person.

[0048] When a ground mouse passes through the hole, it pushes the plate 303 to flip, causing the first helical tooth 302 to drive the first gear 802 to rotate. This, in turn, drives the second gear 803 to rotate via the ratchet 1003 component 10 through the first drive shaft 801. The second gear 803 meshes with the second helical tooth 805 on the second drive shaft 804, driving the mechanical counter 5 to count. The third helical tooth 806 on the second drive shaft 804 meshes with the fourth gear 903, driving the third drive shaft 901 to rotate. The fifth gear 904 and the sixth gear 905 mesh and drive the fourth transmission shaft 902 to rotate. The sixth gear 905 meshes and drives the rack 609, which in turn drives the second sleeve 608 and the insert rod 610 to move upward. The insert rod 610 cooperates with the inclined push groove 605, which causes the push seat 604 to squeeze the fourth spring 614 and drive the limit block 607 to release the limit on the boss 603. The second sleeve 608 pushes the boss 603 upward through the second spring 611, and the boss 603 pushes the identification flag 613 to pop out of the first sleeve 606. At the same time, the rotating fourth drive shaft 902 drives the cam 906 to rotate, and the cam 906 pushes the sliding seat 701 to slide in the first housing 1, so that the red fixed block 703 is exposed and the identification flag 613 is raised to a height of 5cm, so that the observer can clearly see it from 50m away. The exposed red block and the raised identification flag 613 achieve dual status indication.

[0049] After the ground mouse is triggered, the first spring 304 pulls the plate 303 back to the initial position, preparing for the next trigger. The ratchet 1003 component 10 prevents the mechanical counter 5 and the first indicator component from being synchronously reset.

[0050] After 24 hours of monitoring, the cumulative count of the mechanical counter 5 in the device 613 that displays the raised marker flag was read on-site. The relative population density was then calculated using a formula, specifically: Relative population density = number of effective triggering devices / total number of deployed devices.

[0051] It should be noted that, in this document, relational terms such as "first" and "second" are used only 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 process, method, article, or apparatus.

[0052] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

[0053] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the invention, such designs should fall within the protection scope of the present invention.

Claims

1. A device for counting effective rat burrow entrances on grassland ground, characterized in that, include: The first housing is provided with a fixing seat and a clamp, the diameter of which can be adjusted; A triggering mechanism includes a plate body connected to a fixed base via a rotating shaft. A first spring is provided under the plate body for resetting the plate body. The transmission mechanism includes a first transmission component and a second transmission component, wherein the first transmission component is connected to the rotating shaft and the second transmission component respectively; The first indicating mechanism includes a flag and a pop-up assembly, wherein the flag is connected to a second transmission assembly via the pop-up assembly; A mechanical counter is disposed inside the first housing. The mechanical counter is connected to the first transmission assembly via gears. The mechanical counter is used to count the number of times.

2. The effective burrow entrance counting device for grassland rodents according to claim 1, characterized in that: The first transmission assembly includes a first transmission shaft, a ratchet component, and a second transmission shaft. The first transmission shaft is connected to the rotating shaft via gears. The ratchet component is disposed on the first transmission shaft and is used to prevent the gears from reversing. The second transmission shaft is connected to the first transmission shaft via gears.

3. The effective burrow entrance counting device for grassland rodents according to claim 2, characterized in that: The ratchet component includes a ratchet plate and a ratchet wheel. The ratchet plate is connected to the first drive shaft via a retaining ring, the ratchet wheel is connected to a gear, and the ratchet plate is adapted to the ratchet groove of the ratchet wheel.

4. The effective burrow entrance counting device for grassland rats according to claim 3, characterized in that: The second transmission assembly includes a third transmission shaft and a fourth transmission shaft. The third transmission shaft is connected to the second transmission shaft via gears, and the fourth transmission shaft is connected to the third transmission shaft via gears.

5. The effective burrow entrance counting device for grassland rodents according to claim 4, characterized in that: The pop-up assembly includes a second housing, a push rod, a push component, and a limiting component. The second housing is connected to the first housing. The push rod is disposed inside the second housing. A first sleeve is provided on the second housing. The flagpole of the identification flag is disposed inside the first sleeve. The push component is connected to the push rod through a boss. The limiting component is disposed inside the second housing and is connected to the push rod through a boss.

6. The effective burrow entrance counting device for grassland rodents according to claim 5, characterized in that: The pushing component includes a second sleeve, which is connected to a boss via a second spring and to a second housing via a third spring. The second sleeve is provided with a rack and a rod, which are connected to a fourth transmission shaft via gears. The rod is used to release the limiting component from limiting the pushing rod.

7. The effective burrow entrance counting device for grassland rodents according to claim 6, characterized in that: The limiting structure includes a push seat, which is connected to the second housing via a fourth spring, and the push seat is connected to the boss via a limiting block.

8. The effective burrow entrance counting device for grassland rodents according to claim 7, characterized in that: The push base is provided with a push groove, which is inclined towards the side closer to the limiting block, and the insertion rod is adapted to the push groove.

9. The effective burrow entrance counting device for grassland rodents according to claim 8, characterized in that: It also includes a second indicating mechanism, which includes a sliding seat connected to a fourth drive shaft via a cam, and the sliding seat is provided with a push block and two fixing blocks.

10. A method of using the effective burrow entrance counting device for grassland rodents according to claim 9, characterized in that, include: The device is deployed by placing the first housing at the entrance of a mouse burrow on the grassland to be tested, and adjusting the diameter of the clamp to make it fit tightly and secure it to the edge of the burrow. The clamp is used to prevent the first housing from shifting. Trigger preparation: Position the plate of the trigger mechanism on the necessary path of the hole passage, and push the plate to flip when the ground mouse exits the hole; Mechanical counting: The flipped plate rotates via a rotating shaft, which drives a first transmission assembly to rotate. The first transmission assembly then drives a mechanical counter to count via gears. Visual indication: The first transmission component drives the pushing component through the second transmission component, and the pushing component releases the limiting component from the pushing rod, causing the pushing rod to pop up the identification flag; After the device resets and is triggered by the ground mouse, the first spring pulls the plate back to its initial position, preparing for the next trigger. The ratchet component prevents the mechanical counter and the first indicator component from resetting synchronously. After the monitoring period ends, the cumulative number of data reads is recorded on-site from the mechanical counter. The monitoring period is 12-24 hours.

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