A tree bark sample collection device and method

Abstract

The present invention relates to a tree bark sample collection device and method; a tree bark sample collection device comprises: a casing, a motor, a sampling drill bit, a sampling shovel, a drill chuck for installing the sampling drill bit, a shovel mounting head for installing the sampling shovel, and a reciprocating transmission mechanism for converting rotation into linear reciprocating motion to drive the sampling shovel to reciprocate for shoveling; a tree bark sample collection device has a drilling mode in which the sampling drill bit is driven by a motor to rotate and a shoveling mode in which the sampling shovel is driven by a motor to reciprocate; in the drilling mode, the motor drives the drill chuck to rotate so that the sampling drill bit rotates; in the shoveling mode, the motor drives the shovel mounting head to reciprocate through the reciprocating transmission mechanism so that the sampling shovel reciprocates for shoveling. The beneficial effect of the present invention is that bark samples can be collected. Compared with manual scraper sampling, the operation is labor-saving, quick, and the size of each sample can be stably maintained.

Description

Technical Field

[0001] The invention relates to the field of bark sample collection, and in particular to a device and method for collecting tree bark samples. Background Art

[0002] Traditionally, when sampling the bark of a tree, a spatula or a scraper is usually used to scrape or scrape the bark off the trunk of the tree to collect the bark sample. However, when directly scraping the bark by hand, the sample size varies. In addition, there is currently no special tool to assist in the manual sampling of bark samples, and the scraping method using a scraper is laborious. Summary of the invention

[0003] The object of the present invention is to provide a device and method for collecting tree bark samples to solve the problems raised in the above background technology.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] A tree bark sample collection device comprises: a housing, a motor, a sampling drill bit for cutting circular bark samples, a sampling shovel for shoveling the bark samples from the tree, a drill chuck for mounting the sampling drill bit, a shovel mounting head for mounting the sampling shovel, and a reciprocating transmission mechanism for converting rotation into linear reciprocating motion to drive the sampling shovel to reciprocate for shoveling;

[0006] The motor is arranged in the housing; the drill chuck clamps the sampling drill bit; the sampling shovel can be detachably mounted on the shovel mounting head;

[0007] The sampling drill bit comprises: a cutting cup and a handle for being clamped by a drill chuck; a cutting tooth is formed at the cup mouth of the cutting cup; the handle is fixed to the cup bottom of the cutting cup; a receiving cavity for receiving a bark sample is formed in the middle of the cutting cup;

[0008] A tree bark sample collection device has a drilling mode in which a sampling drill bit is driven by a motor to rotate and a shoveling mode in which a sampling shovel is driven by a motor to reciprocate.

[0009] In the drilling and cutting mode, the motor drives the drill chuck to rotate so that the sampling drill bit rotates;

[0010] In the shovel cutting mode, the motor drives the shovel mounting head to reciprocate through the reciprocating transmission mechanism, so that the sampling shovel reciprocates to perform shovel cutting.

[0011] As a further solution of the present invention: a tree bark sample collection device further includes: a mode switching mechanism for switching between a drilling mode and a shovel cutting mode;

[0012] The mode switching mechanism comprises: a switching frame, a front first gear, a front second gear, a front switching gear, a rear first gear, a rear second gear and a rear switching gear; the front switching gear and the rear switching gear are rotatably mounted to the switching frame; the switching frame has a first position and a second position; when the switching frame is located at the first position, a bark sample collection device for a tree is located in a drilling mode; when the switching frame is located at the second position, a bark sample collection device for a tree is located in a shoveling mode; the switching frame moves between the first position and the second position relative to the housing;

[0013] When the switching frame is in the first position, the front switching gear is meshed with the front first gear and the front second gear at the same time, and the rear switching gear is not meshed with the rear second gear;

[0014] When the switching frame is in the second position, the rear switching gear is meshed with the rear first gear and the rear second gear at the same time, and the front switching gear is not meshed with the front second gear;

[0015] The motor drives the front first gear and the rear first gear to rotate; the drill chuck is provided with a front second gear so that the drill chuck is driven to rotate when the front second gear rotates; the input end of the reciprocating transmission mechanism is provided with a rear second gear; and the output end of the reciprocating transmission mechanism is provided with a shovel mounting head.

[0016] As a further solution of the present invention: a tree bark sample collection device also includes: a push button for a user to push to drive the switching frame to move; the push button is slidably mounted to the housing; and the push button is connected to the switching frame.

[0017] As a further solution of the present invention: the reciprocating transmission mechanism includes: a sliding rod, a sliding sleeve, a connecting rod and a passive wheel; the sliding sleeve guides the sliding of the sliding rod; the shovel mounting head is arranged at one end of the sliding rod; the rear second gear drives the passive wheel to rotate; the two ends of the connecting rod are rotatably connected to the sliding rod and the passive wheel respectively; the connection position of the connecting rod and the passive wheel deviates from the rotation axis of the passive wheel to form an eccentric structure.

[0018] As a further solution of the present invention: the reciprocating transmission mechanism further comprises: a driving wheel and a driving shaft; the driving wheel and the rear second gear are mounted to the driving shaft so that the driving wheel and the rear second gear rotate synchronously; the driving wheel is meshed with the driven wheel.

[0019] As a further solution of the present invention: the reciprocating transmission mechanism also includes: a mounting shell; the mounting shell is arranged in the casing and fixed to the casing; the sliding sleeve is mounted to the mounting shell; the driving shaft and the driven wheel are rotatably mounted to the mounting shell.

[0020] As a further solution of the present invention: the sliding rod and the shovel mounting head are integrally formed; the shovel mounting head is provided with a slot for inserting the sampling shovel; the shovel mounting head is provided with two pin mounting holes; the sampling shovel is provided with two positioning holes which are respectively aligned with the two pin mounting holes; the sampling shovel is installed to the shovel mounting head by inserting a locking pin into the pin mounting hole and the positioning hole.

[0021] As a further solution of the present invention: the casing is T-shaped; the casing includes: a main handle portion, a first auxiliary handle portion and a second auxiliary handle portion; the main handle portion and the first auxiliary handle portion are arranged as a whole in a straight line; the second auxiliary handle portion is perpendicular to the main handle portion and the first auxiliary handle portion; a trigger is provided on the main handle portion for the user to control the start of the motor.

[0022] As a further solution of the present invention: the mode switching mechanism is located in the second auxiliary grip portion; the drill chuck is located at an end of the second auxiliary grip portion away from the main grip portion;

[0023] The reciprocating transmission mechanism is located in the first auxiliary grip portion; the shovel mounting head is located at an end of the first auxiliary grip portion away from the main grip portion;

[0024] The tree bark sample collection device also includes: a battery for supplying power to the motor; the battery is detachably inserted into the main handle.

[0025] A method for collecting bark samples of trees, using the above-mentioned tree bark sample collection device to collect bark samples, comprises the following steps:

[0026] Step 1, adjusting a bark sample collection device of a tree to a drilling mode to perform drilling on the tree trunk;

[0027] Step 2, after the drilling and cutting is completed, a bark sample collection device of a tree is adjusted to a shoveling mode and shovel cutting is performed at the drilling and cutting position to obtain a bark sample.

[0028] The invention is beneficial in that it provides a bark sample collection device for collecting bark samples.

[0029] The drilling mode can determine the size of the bark sample, and then the shovel cutting mode can be used to complete the cutting and separation of the sample from the bark. Compared with manual scraper sampling, the operation is labor-saving, fast and can stably maintain the size of each sample.

[0030] Other features and advantages of the present invention will be disclosed in detail in the following specific embodiments and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 is a schematic diagram of a tree bark sample collection device of the present invention;

[0032] Figure 2 yes Figure 1 A schematic diagram of the internal structure of the bark sample collection device;

[0033] Figure 3 yes Figure 2A schematic diagram of a partial structure of the structure in the middle, showing a state where the switching frame is located in the second position;

[0034] Figure 4 yes Figure 3 A schematic diagram of another state of the structure in the middle part shows the state where the switching frame is located in the first position;

[0035] Figure 5 yes Figure 2 A front view of a portion of the structure of the middle structure;

[0036] Figure 6 yes Figure 5 Right view of the middle structure;

[0037] Figure 7 yes Figure 1 A front view of the sampling drill bit of the mid-bark sample collection device;

[0038] Figure 8 yes Figure 7 Left side view of the sampling drill bit;

[0039] Fig. 9 yes Figure 1 A front view of the sampling scoop of the mid-bark sample collection device;

[0040] Fig.10 yes Fig. 9 Left view of the center sampling shovel.

[0041] Bark sample collection device 100, housing 10, main handle portion 11, trigger 111, first auxiliary handle portion 12, second auxiliary handle portion 13, motor 20, first gear box 21, second gear box 22, sampling drill bit 30, cutting cup 31, handle portion 32, air vent 33, sampling shovel 40, positioning hole 41, drill chuck 50, shovel mounting head 60, slot 61, pin mounting hole 62, reciprocating transmission mechanism 70, slide rod 71, slide sleeve 72, connecting rod 73, passive wheel 74, active wheel 75, active shaft 76, mounting shell 77, mode switching mechanism 80, switching frame 81, front first gear 82, front second gear 83, front switching gear 84, rear first gear 85, rear second gear 86, rear switching gear 87, push button 811, battery 90. DETAILED DESCRIPTION

[0042] 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.

[0043] like Figures 1 to 10As shown, a tree bark sample collection device 100 includes: a housing 10, a motor 20, a sampling drill bit 30, a sampling shovel 40, a drill chuck 50, a shovel mounting head 60 and a reciprocating transmission mechanism 70.

[0044] The sampling drill bit 30 is used to cut circular bark samples. The sampling shovel 40 is used to shovel and cut the bark sample from the tree. A cutting blade is formed on the top of the sampling shovel 40. Shoveling is performed by the cutting blade. The movement direction of the sampling shovel 40 is perpendicular to the direction of the cutting blade as a shoveling movement. The drill chuck 50 is used to install the sampling drill bit 30. Specifically, the drill chuck 50 clamps the sampling drill bit 30. That is, the drill chuck 50 can detachably install the sampling drill bit 30 by clamping, so that sampling drill bits 30 of different sizes can be replaced according to the sampling size. The structure of the drill chuck 50 can be the same as that of a conventional electric drill chuck. A gear is provided at one end of the drill chuck 50 for receiving external penetration power. The shovel mounting head 60 is used to install the sampling shovel 40. Specifically, the sampling shovel 40 can be detachably mounted to the shovel mounting head 60 so that sampling shovels 40 of different sizes can be replaced according to the sampling size. The reciprocating transmission mechanism 70 is used to convert the rotation into a linear reciprocating motion so as to drive the sampling shovel 40 to reciprocate for shoveling and cutting.

[0045] The motor 20 is disposed in the housing 10. The motor 20 is fixed to the housing 10. The reciprocating transmission mechanism 70 is disposed in the housing 10. The sampling shovel 40 is detachably mounted to the shovel mounting head 60.

[0046] The sampling drill bit 30 includes: a cutting cup 31 and a handle 32. The handle 32 and the cutting cup 31 are fixed as a whole. The handle 32 is used to be clamped by the drill chuck 50. The cup mouth of the cutting cup 31 is formed with cutting teeth. The handle 32 is fixed to the cup bottom of the cutting cup 31. A receiving cavity for receiving a bark sample is formed in the middle of the cutting cup 31. A plurality of air holes 33 are formed at the cup bottom of the cutting cup 31. As the cutting is extended, the cutting cup 31 gradually cuts into the bark, and the bark sample also enters the receiving cavity. The setting of the air holes 33 can not only play the role of chip removal, but also can be ventilated to keep the same air pressure inside and outside the container cavity.

[0047] The tree bark sample collection device 100 further includes a battery 90. The battery 90 is used to supply power to the motor 20. The battery 90 can be detachably mounted to the housing 10.

[0048] As a specific embodiment, a tree bark sample collection device 100 has a drilling mode and a shoveling mode. In the drilling mode, the sampling drill bit 30 is used as a working head to perform drilling and cutting operations, and the sampling drill bit 30 is driven to rotate by the motor 20. In the shoveling mode, the sampling shovel 40 is used as a working head to perform shoveling operations, and the sampling shovel 40 is driven by the motor 20 to reciprocate.

[0049] In the drilling mode, the motor 20 drives the drill chuck 50 to rotate so as to rotate the sampling drill bit 30. In the shovel cutting mode, the motor 20 drives the shovel mounting head 60 to reciprocate through the reciprocating transmission mechanism 70 so as to reciprocate the sampling shovel 40 to perform shovel cutting.

[0050] As a preferred embodiment, a tree bark sample collection device 100 further includes: a mode switching mechanism 80. The mode switching mechanism 80 controls the bark sample collection device 100 to switch between a drilling mode and a shoveling mode.

[0051] Specifically, the mode switching mechanism 80 includes a switching rack 81 , a front first gear 82 , a front second gear 83 , a front switching gear 84 , a rear first gear 85 , a rear second gear 86 , and a rear switching gear 87 .

[0052] The front switching gear 84 and the rear switching gear 87 are rotatably mounted to the switching frame 81 .

[0053] The front switching gear 84 and the rear switching gear 87 can only rotate relative to the switching frame 81 and cannot move axially. When the switching frame 81 moves along the axial direction of the front switching gear 84 and the rear switching gear 87, the switching frame 81 drives the front switching gear 84 and the rear switching gear 87 to move axially synchronously to switch positions. Specifically, the switching frame 81 has a first position and a second position. When the switching frame 81 is in the first position, the bark sample collection device 100 of a tree is in a drilling mode. When the switching frame 81 is in the second position, the bark sample collection device 100 of a tree is in a shoveling mode.

[0054] The switching frame 81 moves between the first position and the second position relative to the housing 10. Specifically, the switching frame 81 slides along a linear direction between the first position and the second position. The sliding direction of the switching frame 81 is parallel to the axis direction of the front switching gear 84 and the rear switching gear 87.

[0055] When the switching frame 81 is located at the first position, the front switching gear 84 is meshed with the front first gear 82 and the front second gear 83 at the same time, and the rear switching gear 87 is not meshed with the rear second gear 86 .

[0056] When the switching frame 81 is located at the second position, the rear switching gear 87 is meshed with the rear first gear 85 and the rear second gear 86 at the same time, and the front switching gear 84 is not meshed with the front second gear 83 .

[0057] The motor 20 drives the front first gear 82 and the rear first gear 85 to rotate. The motor 20 drives the front first gear 82 and the rear first gear 85 to rotate at the same time, and adjusts the positions of the front switching gear 84 and the rear switching gear 87 by changing the position of the switching frame 81, thereby controlling whether the front switching gear 84 is meshed with the front second gear 83 and whether the rear switching gear 87 is meshed with the rear second gear 86, thereby controlling the motor 20 to output a force to one end of the sampling drill bit 30 or one end of the sampling shovel 40.

[0058] The motor 20 can directly drive the front first gear 82 and the rear first gear 85 to rotate, or can drive the front first gear 82 and the rear first gear 85 by indirect transmission. Specifically, a bark sample collection device 100 for a tree also includes a first gear box 21 and a second gear box 22. The motor 20 drives the front first gear 82 to rotate through the first gear box 21. The motor 20 drives the rear first gear 85 to rotate through the second gear box 22. Specifically, the first gear box 21 and the second gear box 22 are both reduction gear boxes and the first gear box 21 and the second gear box 22 are both planetary gear boxes. Specifically, the front first gear 82 and the rear first gear 85 are respectively mounted on the output shafts of the first gear box 21 and the second gear box 22. The first gear box 21 and the second gear box 22 are arranged at both ends of the motor 20. Specifically, the first gear box 21 and the second gear box 22 are respectively connected to both ends of the motor shaft of the motor 20.

[0059] As a specific embodiment, the drill chuck 50 is provided with a front second gear 83 so that the drill chuck 50 is driven to rotate when the front second gear 83 rotates. The front second gear 83 can be directly formed by the input shaft of the input end of the drill joint 50, or can be installed on the input end of the drill chuck 50. The rotation of the drill chuck 50 is achieved by the rotation of the front second gear 83.

[0060] The input end of the reciprocating transmission mechanism 70 is provided with a rear second gear 86. The output end of the reciprocating transmission mechanism 70 is provided with a shovel mounting head 60.

[0061] As a preferred embodiment, a tree bark sample collection device 100 further includes: a push button 811. The push button 811 is pushed by a user to drive the switching frame 81 to move. The push button 811 is slidably mounted to the housing 10. The push button 811 is connected to the switching frame 81.

[0062] As a specific implementation, the reciprocating transmission mechanism 70 includes: a sliding rod 71 , a sliding sleeve 72 , a connecting rod 73 and a driven wheel 74 .

[0063] The sliding sleeve 72 guides the sliding of the slide bar 71. The shovel mounting head 60 is arranged at one end of the slide bar 71. The rear second gear 86 drives the passive wheel 74 to rotate. The two ends of the connecting rod 73 are rotatably connected to the slide bar 71 and the passive wheel 74 respectively. The connection position of the connecting rod 73 and the passive wheel 74 deviates from the rotation axis of the passive wheel 74 to form an eccentric structure. The slide bar 71 is driven to reciprocate through the rotation of the passive wheel 74 and then through the connecting rod 73. The above-mentioned reciprocating transmission mechanism realizes the way of converting rotation into linear motion, which essentially belongs to the crank slider mechanism. As an optional embodiment, the reciprocating transmission mechanism is not limited to the above-mentioned scheme, and the reciprocating transmission mechanism can be other structures that convert rotation into linear motion, such as a gear rack transmission mechanism, a screw nut transmission mechanism, etc. Reciprocating motion can be achieved by forward and reverse rotation of the motor.

[0064] As a specific implementation, the reciprocating transmission mechanism 70 further includes: a driving wheel 75 and a driving shaft 76. The driving wheel 75 and the rear second gear 86 are mounted to the driving shaft 76 so that the driving wheel 75 and the rear second gear 86 rotate synchronously.

[0065] The driving wheel 75 meshes with the driven wheel 74 .

[0066] As a specific implementation, the reciprocating transmission mechanism 70 further includes: a mounting shell 77. The mounting shell 77 is disposed in the housing 10 and fixed to the housing 10. The sliding sleeve 72 is mounted to the mounting shell 77. The driving shaft 76 and the driven wheel 74 are rotatably mounted to the mounting shell 77.

[0067] As a specific embodiment, the slide bar 71 and the shovel mounting head 60 are integrally formed. The shovel mounting head 60 is provided with a slot 61 for inserting the sampling shovel 40. Two pin mounting holes 62 are provided on the shovel mounting head 60. Two positioning holes 41 are provided on the sampling shovel 40, which are respectively aligned with the two pin mounting holes 62. The sampling shovel 40 is mounted to the shovel mounting head 60 by inserting a locking pin into the pin mounting hole 62 and the positioning hole 41. The locking pin can be set as a structure that can be removed from the shovel mounting head 60 or a structure that cannot be removed from the shovel mounting head 60. As an optional embodiment, the shovel mounting head 60 can be set as a quick clamp structure for mounting the sampling shovel 40.

[0068] As a specific embodiment, the housing 10 is T-shaped. The housing 10 includes: a main handle portion 11, a first auxiliary handle portion 12, and a second auxiliary handle portion 13. The main handle portion 11 and the first auxiliary handle portion 12 are arranged in a straight line. The second auxiliary handle portion 13 is perpendicular to the main handle portion 11 and the first auxiliary handle portion 12. A trigger 111 is provided on the main handle portion 11 for the user to control the motor 20 to start. The trigger 111 is provided on the main handle portion 11 to facilitate the user to control the motor 20 when holding the main handle portion 11. The T-shaped structure formed by the three handles of the housing 10 is convenient for the user to hold and operate the bark sample collection device 100 in both modes.

[0069] As a specific embodiment, the drill chuck 50 is located at one end of the first auxiliary grip portion 12 and the second auxiliary grip portion 13 away from the main grip portion 11. The shovel mounting head 60 is located at the other end of the first auxiliary grip portion 12 and the second auxiliary grip portion 13 away from the main grip portion 11. Specifically, the mode switching mechanism 80 is located in the second auxiliary grip portion 13. The drill chuck 50 is located at one end of the second auxiliary grip portion 13 away from the main grip portion 11. The reciprocating transmission mechanism 70 is located in the first auxiliary grip portion 12. The shovel mounting head 60 is located at one end of the first auxiliary grip portion 12 away from the main grip portion 11. The battery 90 can be detachably inserted into the main grip portion 11. The push button 811 is provided on the second auxiliary grip portion 13. The rotation axis of the sampling drill bit 30 is perpendicular to the direction of the reciprocating motion of the sampling shovel 40.

[0070] The bark sample collection device 100 is used to collect bark samples, including the following steps:

[0071] Step 1, adjusting a tree bark sample collection device 100 to a drilling mode to perform drilling on the tree trunk;

[0072] Step 2, after the drilling and cutting is completed, the bark sample collection device 100 of the tree is adjusted to the shoveling mode to perform shoveling at the drilling and cutting position to obtain the bark sample.

[0073] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0074] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A tree bark sample collection device, characterized in that: include: A machine housing, a motor, a sampling drill bit for cutting circular bark samples, a sampling shovel for shoveling the bark samples from trees, a drill chuck for mounting the sampling drill bit, a shovel mounting head for mounting the sampling shovel, and a reciprocating transmission mechanism for converting rotation into linear reciprocating motion to drive the sampling shovel to reciprocate for shoveling; The motor is arranged in the housing; the drill chuck clamps the sampling drill bit; the sampling shovel can be detachably mounted to the shovel mounting head; The sampling drill bit comprises: a cutting cup and a handle for being clamped by the drill chuck; the cup mouth of the cutting cup is formed with cutting teeth; the handle is fixed to the cup bottom of the cutting cup; and a receiving cavity for receiving a bark sample is formed in the middle of the cutting cup; The tree bark sample collection device has a drilling mode in which the sampling drill bit is driven by the motor to rotate and a shoveling mode in which the sampling shovel is driven by the motor to reciprocate. In the drilling and cutting mode, the motor drives the drill chuck to rotate so as to rotate the sampling drill bit; In the shovel cutting mode, the motor drives the shovel mounting head to reciprocate through the reciprocating transmission mechanism so that the sampling shovel reciprocates to perform shovel cutting; The tree bark sample collection device further comprises: a mode switching mechanism for switching between the drilling mode and the shoveling mode; The mode switching mechanism comprises: a switching frame, a front first gear, a front second gear, a front switching gear, a rear first gear, a rear second gear and a rear switching gear; the front switching gear and the rear switching gear are rotatably mounted to the switching frame; the switching frame has a first position and a second position; when the switching frame is located at the first position, the bark sample collection device of the one type of tree is located in the drilling mode; when the switching frame is located at the second position, the bark sample collection device of the one type of tree is located in the shoveling mode; the switching frame moves between the first position and the second position relative to the housing; When the switching frame is located at the first position, the front switching gear is meshed with the front first gear and the front second gear at the same time, and the rear switching gear is not meshed with the rear second gear; When the switching frame is located at the second position, the rear switching gear is meshed with the rear first gear and the rear second gear at the same time, and the front switching gear is not meshed with the front second gear; The motor drives the front first gear and the rear first gear to rotate; the drill chuck is provided with the front second gear so that the drill chuck is driven to rotate when the front second gear rotates; the input end of the reciprocating transmission mechanism is provided with the rear second gear; the output end of the reciprocating transmission mechanism is provided with the shovel mounting head; The reciprocating transmission mechanism comprises: a sliding rod, a sliding sleeve, a connecting rod and a driven wheel; the sliding sleeve guides the sliding of the sliding rod; the shovel mounting head is arranged at one end of the sliding rod; the rear second gear drives the driven wheel to rotate; the two ends of the connecting rod are rotatably connected to the sliding rod and the driven wheel respectively; the connection position of the connecting rod and the driven wheel deviates from the rotation axis of the driven wheel to form an eccentric structure; The housing is T-shaped; the housing comprises: a main grip portion, a first auxiliary grip portion, and a second auxiliary grip portion; the main grip portion and the first auxiliary grip portion are arranged in a straight line; the second auxiliary grip portion is perpendicular to the main grip portion and the first auxiliary grip portion; a trigger is provided on the main grip portion for a user to control the start of the motor; The mode switching mechanism is located in the second auxiliary grip portion; the drill chuck is located at an end of the second auxiliary grip portion away from the main grip portion; The reciprocating transmission mechanism is located in the first auxiliary handle portion; the shovel mounting head is located at an end of the first auxiliary handle portion away from the main handle portion; The tree bark sample collection device further comprises: a battery for supplying power to the motor; the battery is detachably inserted into the main handle.

2. A tree bark sample collection device according to claim 1, characterized in that: Also includes: A push button for a user to push to drive the switching frame to move; the push button is slidably mounted to the housing; The push button is connected to the switching frame.

3. The tree bark sample collection device according to claim 1, characterized in that: The reciprocating transmission mechanism further includes: a driving wheel and a driving shaft; the driving wheel and the rear second gear are mounted to the driving shaft so that the driving wheel and the rear second gear rotate synchronously; the driving wheel is meshed with the driven wheel.

4. A tree bark sample collection device according to claim 3, characterized in that: The reciprocating transmission mechanism further includes: a mounting shell; the mounting shell is disposed in the casing and fixed to the casing; the sliding sleeve is mounted to the mounting shell; the driving shaft and the driven wheel are rotatably mounted to the mounting shell.

5. The tree bark sample collection device according to claim 1, characterized in that: The slide rod and the shovel mounting head are integrally formed; the shovel mounting head is provided with a slot for inserting the sampling shovel; the shovel mounting head is provided with two pin mounting holes; the sampling shovel is provided with two positioning holes which are respectively aligned with the two pin mounting holes; the sampling shovel is mounted to the shovel mounting head by inserting a locking pin into the pin mounting hole and the positioning hole.

6. A method for collecting bark samples of trees, characterized in that: The bark sample collection device for a tree as claimed in claim 1 is used to collect bark samples, comprising the following steps: Step 1, adjusting the bark sample collection device of the tree to a drilling mode to perform drilling on the tree trunk; Step 2: After the drilling and cutting is completed, the bark sample collection device of the tree is adjusted to a shoveling mode to perform shoveling at the drilling and cutting position to obtain a bark sample.

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