A device for preventing freezing and damage of forest seedlings

Abstract

The application discloses a kind of freeze protection and loss prevention devices for forest seedlings, it is related to the technical field of seedling raising device, including freeze protection cover, heating device is used to heat liquid in liquid storage chamber, annular groove is opened in freeze protection cover, protection mechanism is arranged on freeze protection cover, protection mechanism is used to accommodate the forest seedlings cultivated and carries out protection;Freeze protection cover is provided with bottom platform outside, heat preservation chamber is opened in bottom platform, control device is arranged on bottom platform, push mechanism is arranged in heat preservation chamber, push mechanism is used to reciprocate up and down for protection mechanism.The temperature sensor is arranged to monitor the soil temperature in the rammed soil ring in real time, when the average temperature in the rammed soil ring is less than the root growth freeze protection threshold of forest seedlings, the liquid in the liquid storage chamber is heated by the heating assembly, the soil temperature of the root of forest seedlings in the rammed soil ring is improved, and the root of forest seedlings is prevented from being frozen by low temperature in winter.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of seedling raising device, more particularly, it relates to a kind of for forest young seedling freeze-proof device. BACKGROUND

[0002] Seedling is also called nursery stock, the general term of various fruit tree seedlings, arbor seedlings and shrub seedlings; Seedling is the seedling with root system and stem, and all seedlings cultivated in nursery are called seedling regardless of age, before they are transplanted, and the winter temperature is lower, and many overwintering seedlings will be damaged by frost, which will affect the growth of seedlings next year if appropriate measures are not taken in time.

[0003] At present, the freeze-proof measures for forest young seedlings are to wrap cloth around the branches of young seedlings or to apply antifreeze coating on the branches of young seedlings, but the above-mentioned freeze-proof measures can only prevent the branches of young seedlings from freezing, and cannot prevent the roots of young seedlings from freezing, so when the temperature outside is low, the roots of young seedlings are easy to be frozen due to the lack of freeze-proof measures, and in winter, the current freeze-proof measures cannot timely remove the snow on the branches and leaves of young seedlings, which will cause the snow on the branches and leaves of young seedlings to cause certain frost damage to the branches and leaves of young seedlings when it melts. SUMMARY

[0004] The present application aims at: in order to solve the above problems, a kind of for forest young seedling freeze-proof device is provided.

[0005] To achieve the above object, the present application provides the following technical scheme: a kind of for forest young seedling freeze-proof device, including freeze-proof cover, freeze-proof cover is opened in liquid storage chamber, liquid storage chamber is provided with heating device, heating device is used to heat the liquid in liquid storage chamber, freeze-proof cover is opened in annular groove, freeze-proof cover is provided with protection mechanism, protection mechanism is used to contain the forest young seedling cultivated and protects it;Freeze-proof cover is provided with bottom table outside, bottom table is opened in heat preservation chamber, bottom table is provided with control device, control device is detachably connected with bottom table, heat preservation chamber is provided with push mechanism, push mechanism is electrically connected with control device, push mechanism is used to push the up-and-down reciprocating motion of protection mechanism.

[0006] As a further scheme of the present application: push mechanism includes push assembly and transmission assembly, push assembly is arranged in heat preservation chamber, push assembly is electrically connected with control device, transmission assembly is arranged on freeze-proof cover, transmission assembly cooperates with push assembly.

[0007] As a further scheme of the present application: the pushing assembly includes an electric push rod, a pushing disc, a limiting rod and a connecting spring, the electric push rod is arranged in the heat preservation chamber, the electric push rod is detachably fixedly connected with the bottom table, the electric push rod is electrically connected with the control device, the electric push rod is provided with a plurality of electric push rods, and the plurality of electric push rods are uniformly distributed in a circumferential shape in the heat preservation chamber, the pushing disc is arranged on the electric push rod, the limiting rod is arranged in the heat preservation chamber, and the end of the limiting rod is fixedly connected with the bottom table, the limiting rod is provided with a plurality of limiting rods, and the plurality of limiting rods are distributed in a circumferential shape in the heat preservation chamber, the limiting rod penetrates through the pushing disc and is slidably connected with the pushing disc, the surface of the pushing disc away from the electric push rod is provided with the connecting spring, the connecting spring is fixedly connected with the pushing disc, and the connecting spring is sleeved on the limiting rod, and one end of the connecting spring away from the electric push rod is fixedly connected with the bottom table.

[0008] As a further scheme of the present application: the transmission assembly includes a longitudinal rod, a vibration spring, a connecting block and a transmission rod, the longitudinal rod is arranged in the ring groove, the longitudinal rod is fixedly connected with the freeze-proof cover, the longitudinal rod is provided with a plurality of longitudinal rods, and the plurality of longitudinal rods are uniformly distributed in a circumferential shape in the ring groove, the vibration spring is sleeved on the longitudinal rod, and the number of the vibration springs sleeved on each longitudinal rod is two, one end of the vibration spring sleeved on the longitudinal rod away from the freeze-proof cover is fixedly connected with the freeze-proof cover, the opposite ends of the two vibration springs sleeved on the longitudinal rod are provided with the connecting block, the connecting block is fixedly connected with the vibration spring, the connecting block is slidably connected with the longitudinal rod, the surface of the connecting block close to the heat preservation chamber is provided with the transmission rod, the transmission rod is fixedly connected with the connecting block, one end of the transmission rod away from the connecting block penetrates through the freeze-proof cover and extends into the heat preservation chamber, and the transmission rod is slidably connected with the freeze-proof cover.

[0009] As a further scheme of the present application: the protection mechanism includes a bearing assembly, a knocking assembly and a protection assembly, the knocking assembly is arranged on the freeze-proof cover, the bearing assembly is arranged on the connecting block, the bearing assembly cooperates with the knocking assembly, and the protection assembly is arranged on the bearing assembly and is electrically connected with the control device.

[0010] As a further scheme of the present application: the bearing assembly includes a bearing disc, a ramming ring and a temperature sensor, the bearing disc is arranged on the surface of the connecting block away from the heat preservation chamber, the bearing disc is detachably fixedly connected with the connecting block, the bearing disc is slidably connected with the freeze-proof cover, the bearing disc is provided with a plurality of ventilation holes, the plurality of ventilation holes are uniformly distributed on the bearing disc, the surface of the bearing disc away from the liquid storage chamber is provided with the ramming ring, the ramming ring is detachably fixedly connected with the bearing disc, the side surface of the ramming ring is provided with a plurality of protrusions, the number of the protrusions is at least three, the spacing between adjacent protrusions is uniform, the protrusions are fixedly connected with the ramming ring, the cross section of the protrusion is semicircular, the temperature sensor is arranged in the ramming ring, the temperature sensor is provided with a plurality of temperature sensors, the plurality of temperature sensors are uniformly distributed on the inner wall of the ramming ring, the temperature sensor is electrically connected with the control device, and the temperature sensor is used for measuring the temperature in the ramming ring.

[0011] As a further scheme of the present application: the knocking assembly comprises a first protective ring, an inner partition, a knocking rod, a return spring and a baffle, the first protective ring is arranged on the freeze-proof cover, the first protective ring is detachably fixedly connected with the freeze-proof cover, the inner partition is arranged in the first protective ring, the inner partition is fixedly connected with the first protective ring, a heat insulation chamber is formed between the inner partition and the inner wall of the first protective ring, the knocking rod is arranged on the inner partition, the knocking rod is slidably connected with the inner partition, the knocking rod is provided in plurality, and the plurality of knocking rods are uniformly distributed in a circumferential shape on the inner partition, the end of the knocking rod close to the protrusion is provided in a semispherical shape, the end of the knocking rod close to the ramming ring is in contact with the ramming ring in an initial state, the baffle is arranged on the knocking rod, the baffle is fixedly connected with the knocking rod, the return spring is sleeved on the knocking rod, and the two ends of the return spring are fixedly connected with the baffle and the inner partition respectively.

[0012] As a further scheme of the present application: the protection assembly comprises a driving motor, a driving screw, a guide rod, a second protective ring and a motion sensor, the end of the first protective ring away from the freeze-proof cover is provided with the guide rod, the guide rod is fixedly connected with the first protective ring, the driving motor is arranged in the first protective ring, the driving motor is detachably fixedly connected with the first protective ring, the driving motor is electrically connected with the control device, the output end of the driving motor is provided with the driving screw, the driving screw is fixedly connected with the output end of the driving motor, the second protective ring is arranged on the driving screw, the second protective ring is threadedly connected with the driving screw, the second protective ring is slidably connected with the guide rod, the motion sensor is arranged in the second protective ring, the motion sensor is electrically connected with the control device, and the motion sensor is used for measuring the coordinates of the marked point on the forest seedling.

[0013] In summary, due to the adoption of the above technical scheme, the present application has the following beneficial effects:

[0014] 1. The temperature sensor is arranged to monitor the soil temperature in the ramming ring in real time, and when the average temperature in the ramming ring is less than the root growth freeze-proof temperature threshold of the forest seedling, the liquid in the liquid storage chamber is heated by the heating assembly, so that the soil temperature of the root of the forest seedling in the ramming ring is improved, and the root of the forest seedling is prevented from being frozen in winter.

[0015] 2. The knocking assembly is arranged to repeatedly compress and stretch the return spring when the ramming ring moves up and down, so that the ramming ring is repeatedly knocked by the knocking rod, the ramming ring is vibrated, the forest seedling planted in the ramming ring is also vibrated, the effect of shaking off the accumulated snow from the branches and leaves of the forest seedling is improved, and the efficiency of removing the accumulated snow is improved, so that the forest seedling is prevented from being frozen by the melting snow on the branches and leaves.

[0016] 3、By setting up the protection assembly, the device can measure the coordinates of the marking points on the forest seedling in real time, so as to determine the shaking of the forest seedling in windy weather, and the driving motor is started to control the device according to the shaking, so that the second protection ring moves longitudinally, and the wind receiving position of the forest seedling is adjusted, so that the shaking of the forest seedling is reduced according to the wind force, and the breaking and damage of the forest seedling caused by excessive wind force is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0018] Figure 1 It is a three-dimensional structure schematic diagram of a freeze-proof and damage-preventing device for forest seedlings.

[0019] Figure 2 It is an internal structure schematic diagram of a freeze-proof and damage-preventing device for forest seedlings.

[0020] Figure 3 It is a partial structure schematic diagram of the protection mechanism.

[0021] Figure 4 It is a partial structure schematic diagram of the pushing mechanism and the bearing assembly.

[0022] Figure 5 It is a partial structure schematic diagram of the driving assembly.

[0023] Figure 6 It is a partial structure schematic diagram of the Figure 2

[0024] Legend:

[0025] 1, freeze-proof cover; 2, liquid storage chamber; 3, heating device; 4, ring groove; 5, bottom table; 6, heat preservation chamber; 7, control device; 8, electric push rod; 9, push disc; 10, limiting rod; 11, connecting spring; 12, longitudinal rod; 13, vibration spring; 14, connecting block; 15, transmission rod; 16, bearing disc; 17, ramming ring; 18, temperature sensor; 19, air hole; 20, protrusion; 21, first protection ring; 22, inner partition; 23, knocking rod; 24, return spring; 25, baffle; 26, heat insulation chamber; 27, driving motor; 28, driving screw; 29, guide rod; 30, second protection ring; 31, motion sensor. DETAILED DESCRIPTION

[0026] ​With reference to the accompanying drawings, the technical solutions in the embodiments of the present application will be described clearly and completely. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those of ordinary skill in the art without creative effort belong to the scope of the present application.

[0027] In the description of the present application, it should be understood that the terms "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0028] In addition, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0029] Reference Figures 1 to 6 Further description is made to an embodiment of the present application for a freezing and damage prevention device for forest seedlings.

[0030] The utility model provides a kind of anti-freezing and anti-damage device for forest seedling, including anti-freezing cover 1, and anti-freezing cover 1 is opened with liquid storage chamber 2, and heating device 3 is arranged in liquid storage chamber 2, and heating device 3 can be selected with heating sheet etc., and heating device 3 is used to heat liquid in liquid storage chamber 2, and annular groove 4 is opened in anti-freezing cover 1, and protection mechanism is arranged on anti-freezing cover 1, and protection mechanism includes bearing assembly, knocking assembly and protection assembly, and knocking assembly is arranged on anti-freezing cover 1, and bearing assembly is arranged on connecting block 14, and bearing assembly cooperates with knocking assembly, and protection assembly is arranged on bearing assembly, and protection assembly is electrically connected with control device 7.Bearing assembly includes bearing disc 16, rammer ring 17 and temperature sensor 18, bearing disc 16 is arranged on the surface of connecting block 14 away from heat preservation chamber 6, and bearing disc 16 is detachably connected with connecting block 14, and bearing disc 16 is slidably connected with anti-freezing cover 1, and bearing disc 16 is opened with air hole 19, and air hole 19 is opened with multiple, and multiple air hole 19 is evenly distributed on bearing disc 16, and the surface of bearing disc 16 away from liquid storage chamber 2 is provided with rammer ring 17, and rammer ring 17 is detachably connected with bearing disc 16, and the side of rammer ring 17 is provided with protrusion 20, and protrusion 20 is provided with at least three, and the interval between adjacent protrusion 20 is consistent, and protrusion 20 is fixedly connected with rammer ring 17, and the section of protrusion 20 is semicircular, and temperature sensor 18 is arranged in rammer ring 17, and temperature sensor 18 is provided with multiple, and multiple temperature sensor 18 is evenly distributed on the inner wall of rammer ring 17, and temperature sensor 18 is electrically connected with control device 7, and temperature sensor 18 is used to measure the temperature in rammer ring 17.

[0031] When working, the temperature sensor 18 arranged in the rammer ring 17 measures the soil temperature in the rammer ring 17 to obtain a set of measured temperatures {CWJ i}, wherein i represents the temperature value code measured by the temperature sensor 18, and i takes a positive integer. After the control device 7 obtains the temperature set measured by the temperature sensor 18, the average temperature is calculated by the formula , wherein n represents the number of temperature values in the temperature set. The calculated average temperature is compared with the preset root growth anti-freezing temperature threshold SWZ of the forest seedling, wherein the root growth anti-freezing temperature threshold of the forest seedling can be known by the experience of the seedling grower, and the specific process is as follows:

[0032] If , the control device 7 determines that the soil temperature for the root growth of the seedling may freeze, the control device 7 controls the heating device 3 to start, and the heating device 3 heats the liquid in the liquid storage chamber 2 to increase the temperature in the liquid storage chamber 2, and then increase the soil temperature in the rammer ring 17, until If , the control device 7 does not control the heating device 3 to start.

[0033] The technical scheme is characterized in that the temperature sensor 18 is arranged, so that the device can monitor the soil temperature in the ramming soil ring 17 in real time; when the average temperature in the ramming soil ring 17 is less than the root growth antifreezing temperature threshold of the young tree seedling, the heating assembly is used to heat the liquid in the liquid storage chamber 2, so as to increase the soil temperature of the root of the young tree seedling in the ramming soil ring 17, and thus the root of the young tree seedling is prevented from being frozen in winter.

[0034] The knocking assembly comprises a first protective ring 21, an inner partition plate 22, a knocking rod 23, a reset spring 24 and a baffle 25. The first protective ring 21 is arranged on the antifreezing cover 1 and detachably fixed to the antifreezing cover 1. The inner partition plate 22 is arranged in the first protective ring 21 and fixed to the first protective ring 21. The inner partition plate 22 and the inner wall of the first protective ring 21 form a heat insulation chamber 26. The knocking rod 23 is arranged on the inner partition plate 22 and slidably connected to the inner partition plate 22. A plurality of knocking rods 23 are arranged on the inner partition plate 22 and evenly distributed in a circumferential direction. One end of the knocking rod 23 close to the protrusion 20 is arranged in a semispherical shape. In an initial state, the other end of the knocking rod 23 close to the ramming soil ring 17 is in contact with the ramming soil ring 17. The baffle 25 is arranged on the knocking rod 23 and fixed to the knocking rod 23. The reset spring 24 is arranged on the knocking rod 23 and fixed to the baffle 25 and the inner partition plate 22.

[0035] The knocking assembly is arranged, and the protrusion 20 on the ramming soil ring 17 moves up and down relative to the knocking rod 23 when the ramming soil ring 17 moves up and down. When the protrusion 20 is in contact with the knocking rod 23 during the up-and-down movement of the protrusion 20, the knocking rod 23 moves away from the ramming soil ring 17, so that the baffle 25 arranged on the knocking rod 23 also moves away from the ramming soil ring 17, thereby exerting pressure on the reset spring 24 to deform the reset spring 24. When the protrusion 20 is out of contact with the knocking rod 23, the reset spring 24 releases the stored elastic potential energy, so that the baffle 25 drives the knocking rod 23 to move towards the ramming soil ring 17, thereby knocking the ramming soil ring 17 by the knocking rod 23. During the up-and-down movement of the ramming soil ring 17, the reset spring 24 is repeatedly compressed and stretched, thereby repeatedly knocking the ramming soil ring 17 by the knocking rod 23. The ramming soil ring 17 vibrates, and the young tree seedling planted in the ramming soil ring 17 also vibrates, thereby further improving the effect of shaking off the accumulated snow from the branches and leaves of the young tree seedling and the efficiency of removing the accumulated snow, and preventing the young tree seedling from being frozen by the melted snow on the branches and leaves.

[0036] The protection assembly comprises a driving motor 27, a driving screw 28, a guide rod 29, a second protection ring 30 and a motion sensor 31. The guide rod 29 is arranged on the end face of the first protection ring 21 away from the freeze-proof cover 1 and is fixedly connected with the first protection ring 21. The driving motor 27 is arranged in the first protection ring 21 and is detachably fixedly connected with the first protection ring 21. The driving motor 27 is electrically connected with the control device 7. The output end of the driving motor 27 is provided with the driving screw 28, which is fixedly connected with the output end of the driving motor 27. The second protection ring 30 is arranged on the driving screw 28 and is threadedly connected with the driving screw 28. The second protection ring 30 is slidably connected with the guide rod 29. The motion sensor 31 is arranged in the second protection ring 30 and is electrically connected with the control device 7. The motion sensor 31 is used for measuring the coordinates of the marked point on the tree seedling.

[0037] When encountering strong wind weather, the motion sensor 31 measures the coordinates (x k ,y k ,z k ) of the marked point on the tree seedling trunk in real time. It should be noted that the three-dimensional coordinate system in this scheme is established with the plane coordinate system in which the marked point is located and the axis of the second protection ring 30 being perpendicular to each other as the plane coordinate system and the axis of the second protection ring 30 as the Z axis. The marked point on the tree seedling can be manually marked by a breeding personnel. The offset BPL of the marked point in the time period T is calculated, wherein the offset of the marked point can be calculated by the formula , wherein x represents the horizontal coordinate value of the marked point when it is static, y represents the vertical coordinate value of the marked point when it is static, and z represents the vertical coordinate value of the marked point when it is static. The time period T can be set by the breeding personnel. The obtained offset is compared with the preset offset threshold BPL y .

[0038] If BPL < BPL y , the control device 7 judges that the current wind level will not cause damage to the tree seedling, and the control device 7 does not control the driving motor 27 to start. If BPL ≥ BPL y , the control device 7 judges that the current wind level may cause damage to the tree seedling. At this time, the control device 7 controls the driving motor 27 to start, so that the driving screw 28 fixedly connected with the output end of the driving motor 27 rotates. Through the threaded transmission cooperation between the driving screw 28 and the second protection ring 30, the second protection ring 30 moves longitudinally, so as to reduce the wind receiving area on the upper side of the tree seedling, so that the amplitude of the tree seedling shaking with the wind is reduced, until BPL ≤ 1 / 3 BPL y .

[0039] The device is provided with a protection component, so that the device can measure the coordinates of the mark points on the forest seedling in real time, so as to judge the shaking of the forest seedling in windy weather, and control the driving motor 27 to start according to the shaking condition, so that the second protection ring 30 moves longitudinally, and then adjusts the wind receiving position of the forest seedling, so as to reduce the shaking of the forest seedling according to the wind force, and avoid the breaking and damage of the forest seedling caused by excessive wind force.

[0040] The bottom table 5 is provided outside the anti-freezing cover 1, the heat preservation chamber 6 is formed in the bottom table 5, the control device 7 is arranged on the bottom table 5, the control device 7 is detachably connected with the bottom table 5, the pushing mechanism is arranged in the heat preservation chamber 6, the pushing mechanism comprises a pushing assembly and a transmission assembly, the pushing assembly is arranged in the heat preservation chamber 6, the pushing assembly is electrically connected with the control device 7, the transmission assembly is arranged on the anti-freezing cover 1, and the transmission assembly is matched with the pushing assembly. The pushing assembly comprises an electric push rod 8, a push disc 9, a limiting rod 10 and a connecting spring 11, the electric push rod 8 is arranged in the heat preservation chamber 6, the electric push rod 8 is detachably connected with the bottom table 5, the electric push rod 8 is electrically connected with the control device 7, a plurality of electric push rods 8 are arranged, and the plurality of electric push rods 8 are uniformly distributed in a circumferential shape in the heat preservation chamber 6, the push disc 9 is arranged on the electric push rod 8, the limiting rod 10 is arranged in the heat preservation chamber 6, and the end of the limiting rod 10 is fixedly connected with the bottom table 5, a plurality of limiting rods 10 are arranged, and the plurality of limiting rods 10 are distributed in a circumferential shape in the heat preservation chamber 6, the limiting rod 10 penetrates through the push disc 9 and is slidably connected with the push disc 9, the surface of the push disc 9 away from the electric push rod 8 is provided with the connecting spring 11, the connecting spring 11 is fixedly connected with the push disc 9, the connecting spring 11 is sleeved on the limiting rod 10, and one end of the connecting spring 11 away from the electric push rod 8 is fixedly connected with the bottom table 5. The transmission assembly comprises a vertical rod 12, a vibration spring 13, a connecting block 14 and a transmission rod 15, the vertical rod 12 is arranged in the ring groove 4, the vertical rod 12 is fixedly connected with the anti-freezing cover 1, a plurality of vertical rods 12 are arranged, and the plurality of vertical rods 12 are uniformly distributed in a circumferential shape in the ring groove 4, the vibration spring 13 is sleeved on the vertical rod 12, and the number of the vibration springs 13 sleeved on each vertical rod 12 is two, one end of the vibration spring 13 sleeved on the vertical rod 12, close to the anti-freezing cover 1, is fixedly connected with the anti-freezing cover 1, the opposite ends of the two vibration springs 13 sleeved on the vertical rod 12 are provided with the connecting block 14, the connecting block 14 is fixedly connected with the vibration spring 13, the connecting block 14 is slidably connected with the vertical rod 12, the surface of the connecting block 14 close to the heat preservation chamber 6 is provided with the transmission rod 15, the transmission rod 15 is fixedly connected with the connecting block 14, one end of the transmission rod 15 away from the connecting block 14 penetrates through the anti-freezing cover 1 and extends into the heat preservation chamber 6, and the transmission rod 15 is slidably connected with the anti-freezing cover 1.

[0041] Working principle: when the camera in the nursery detects snow on the branches and leaves or branches of the tree seedlings, the control device 7 controls the electric push rod 8 to start, so that the electric push rod 8 repeatedly extends and shortens, so that the push disc 9 matched with the electric push rod 8 moves up and down reciprocatingly, drives the transmission rod 15 arranged on the push disc 9 to move up and down reciprocatingly, so that the connecting block 14 fixedly connected with the transmission rod 15 drives the bearing disc 16 to move up and down reciprocatingly, so that the ramming ring 17 arranged on the bearing disc 16 drives the tree seedlings to move up and down reciprocatingly, thereby shaking off and removing the snow on the tree seedlings, thereby avoiding that the snow on the branches and leaves of the tree seedlings freezes the tree seedlings, and also avoiding that the snow on the branches breaks the branches of the tree seedlings to cause damage to the tree seedlings; meanwhile, when the ramming ring 17 moves up and down reciprocatingly, the protrusion 20 on the ramming ring 17 also moves up and down reciprocatingly relative to the knocking rod 23, in the process of the protrusion 20 moving up and down reciprocatingly, when the protrusion 20 contacts the knocking rod 23, the knocking rod 23 moves away from the ramming ring 17, so that the baffle 25 arranged on the knocking rod 23 also moves away from the ramming ring 17, thereby exerting pressure on the reset spring 24 to deform, when the protrusion 20 is separated from the knocking rod 23, the reset spring 24 releases the stored elastic potential energy, so that the baffle 25 drives the knocking rod 23 to move towards the ramming ring 17, thereby the knocking rod 23 knocks the ramming ring 17, in the process of the ramming ring 17 moving up and down reciprocatingly, the reset spring 24 is repeatedly compressed and stretched, thereby realizing the repeated knocking of the knocking rod 23 to the ramming ring 17, so that the ramming ring 17 vibrates, thereby further improving the effect of shaking off the snow from the branches and leaves of the tree seedlings and the snow removal efficiency.

[0042] The above is only the preferred embodiment of the present application, the protection scope of the present application is not limited to the above-mentioned embodiment, any technical scheme belonging to the idea of the present application is also within the protection scope of the present application. It should be pointed out that, for ordinary skilled in the art, some improvements and decorations without departing from the principle of the present application, these improvements and decorations should also be considered as the protection scope of the present application.

Claims

1. A device for preventing frost damage to forest seedlings, characterized in that, The system includes an antifreeze cover with a liquid storage chamber inside. A heating device is installed in the liquid storage chamber to heat the liquid inside. An annular groove is also present inside the antifreeze cover. A protective mechanism is installed on the antifreeze cover to hold and protect the cultivated tree seedlings. A base is located outside the antifreeze cover, with an insulation chamber inside. A control device is mounted on the base and is detachably fixed to the base. A pushing mechanism is installed inside the insulation chamber and is electrically connected to the control device. The pushing mechanism is used to drive the protective mechanism to reciprocate up and down. The actuation mechanism includes a actuation component and a transmission component. The actuation component is located in the heat-insulating chamber and is electrically connected to the control device. The transmission component is located on the anti-freeze cover and cooperates with the actuation component. The transmission assembly includes longitudinal rods, vibration springs, connecting blocks, and transmission rods. The longitudinal rods are set in an annular groove and are fixedly connected to the antifreeze cover. There are multiple longitudinal rods, which are evenly distributed in a circular shape within the annular groove. Vibration springs are sleeved on the longitudinal rods, and each longitudinal rod has two vibration springs. The end of the vibration spring sleeved on the longitudinal rod closest to the antifreeze cover is fixedly connected to the antifreeze cover. A connecting block is set at the opposite end of the two vibration springs sleeved on the longitudinal rod. The connecting block is fixedly connected to the vibration spring and slidably connected to the longitudinal rod. A transmission rod is set on the surface of the connecting block near the insulation chamber. The transmission rod is fixedly connected to the connecting block. The end of the transmission rod away from the connecting block passes through the antifreeze cover and extends into the insulation chamber. The transmission rod is slidably connected to the antifreeze cover. The protective mechanism includes a load-bearing component, a striking component, and a protective component. The striking component is mounted on the antifreeze cover, the load-bearing component is mounted on the connecting block, the load-bearing component cooperates with the striking component, the protective component is mounted on the load-bearing component, and the protective component is electrically connected to the control device. The supporting component includes a supporting plate, a rammed earth ring, and a temperature sensor. The supporting plate is set on the surface of the connecting block away from the insulation chamber. The supporting plate is slidably connected to the antifreeze cover. The supporting plate has multiple vent holes that are evenly distributed on it. The rammed earth ring is set on the surface of the supporting plate away from the liquid storage chamber. The rammed earth ring is detachably fixed to the supporting plate. The rammed earth ring has at least three protrusions on its side with consistent spacing between adjacent protrusions. The cross-section of the protrusions is semi-circular. The temperature sensor is set inside the rammed earth ring. Multiple temperature sensors are evenly distributed on the inner wall of the rammed earth ring. The temperature sensor is electrically connected to the control device. The striking assembly includes a first protective ring, an inner partition, a striking rod, a return spring, and a baffle. The first protective ring is detachably connected to the antifreeze cover. An inner partition is provided inside the first protective ring, and a heat insulation chamber is formed between the inner partition and the inner wall of the first anti-slip ring. A striking rod is provided on the inner partition, and the striking rod is slidably connected to the inner partition. Multiple striking rods are provided, and the multiple striking rods are evenly distributed in a circular shape on the inner partition. The end of the striking rod near the protrusion is set as a hemispherical shape. In the initial state, the end of the striking rod near the rammed earth ring is in contact with the rammed earth ring. A baffle is provided on the striking rod, and a return spring is sleeved on the striking rod. The protective assembly includes a drive motor, a drive screw, a guide rod, a second protective ring, and a motion sensor. The guide rod is provided on the end face of the first protective ring away from the antifreeze cover. The drive motor is located inside the first protective ring and is electrically connected to the control device. The drive screw is provided at the output end of the drive motor. The second protective ring is provided on the drive screw and is threadedly connected to the drive screw. The second protective ring is slidably connected to the guide rod. The motion sensor is located inside the second protective ring and is electrically connected to the control device. In windy weather, motion sensors measure the coordinates of marked points on the trunks of saplings in real time, calculate the offset BPL of the marked points within a time period T, and compare the obtained offset with a preset offset threshold BPL. y In comparison, if BPL < BPL y The control device does not control the drive motor to start if BPL ≥ BPL y At this time, the control device starts the drive motor, thereby reducing the wind-exposed area on the upper side of the tree seedlings.

2. The anti-freezing and damage prevention device for forest seedlings according to claim 1, characterized in that, The pushing assembly includes an electric push rod, a push plate, a limiting rod, and a connecting spring. The electric push rod is located inside the insulation chamber and is detachably fixed to the base. The electric push rod is electrically connected to the control device. Multiple electric push rods are provided, and they are evenly distributed in a circumferential shape within the insulation chamber. A push plate is provided on the electric push rod. The limiting rod is located inside the insulation chamber, and its end is fixedly connected to the base. Multiple limiting rods are provided, and they are distributed in a circumferential shape within the insulation chamber. The limiting rod passes through the push plate and is slidably connected to it. A connecting spring is provided on the surface of the push plate away from the electric push rod, and the connecting spring is sleeved on the limiting rod.

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