Isolation belt and brush cutting device connecting piece with height adjustment function

Abstract

The utility model discloses a take height adjusting function's isolation zone brush cutter device connecting piece relates to the equipment of trimming hedge, for example hedge trimmer technical field. The utility model discloses a take height adjusting function's isolation zone brush cutter device connecting piece, including the caterpillar type engineering car, the left side fixed connection of caterpillar type engineering car has fixed block, and the both sides of fixed block all are fixedly connected with fixed plate, and the left side of two fixed plates all are installed with first bolt, and fixed block and two fixed plates can be fixedly connected with caterpillar type engineering car through four first bolts, and the inside of fixed block is provided with sliding slot, and the left side of fixed block is provided with connecting groove, and the right side of connecting groove extends into the inside of sliding slot, be installed with cutting mechanism on fixed block, through this mode, can according to need automatic's to cutting height adjust the function, and then make work when can fast, accurate to trimming height adjust, improve trimming quality and effect.

Description

Technical Field

[0001] This utility model relates to equipment for pruning hedges, such as in the field of hedge trimming technology, specifically a connector for a hedge trimming device with height adjustment function. Background Technology

[0002] A vegetation cutter is a mechanical device specifically designed for trimming and clearing weeds and shrubs from the median strips along roads, railways, airports, and other transportation infrastructure. Its main function is to efficiently and safely remove excess vegetation from the median strip through mechanized operations, ensuring its cleanliness, safety, and functionality. The connectors of the vegetation cutter are the connecting parts between the various components of the device, serving to fix it in place, transmit power and movement, and are key components ensuring the overall structural stability and normal operation of the device.

[0003] While some existing brush trimming devices have a certain function to adjust the cutting height, the adjustment method is often not flexible and precise enough. Some devices use a manual adjustment method, which requires the operator to use tools to gradually adjust the height of the cutting parts. This process is not only time-consuming and laborious, but also difficult to control the cutting height accurately, and it is easy to adjust too high or too low, which cannot meet the precise requirements for shrub trimming height in different scenarios. Utility Model Content

[0004] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide a connecting part for a firebreak cutting device with height adjustment function, which has the function of automatically adjusting the cutting height as needed, thereby enabling quick and accurate adjustment of the trimming height during operation, and improving the trimming quality and effect.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a connecting piece for a firebreak cutting device with height adjustment function, including a tracked engineering vehicle, a fixing block fixedly connected to the left side of the tracked engineering vehicle, and fixing plates fixedly connected to both the front and rear sides of the fixing block;

[0006] The left side of each of the two fixing plates is equipped with a first bolt, and the fixing block and the two fixing plates can be fixedly connected to the tracked engineering vehicle by the four first bolts;

[0007] The fixed block has a sliding groove inside, and a connecting groove is provided on the left side of the fixed block. The right side of the connecting groove extends into the sliding groove. A cutting mechanism is installed on the fixed block. The cutting mechanism can trim and cut the shrubs in the isolation zone. The height of the cutting mechanism can also be adjusted.

[0008] The cutting mechanism includes a sliding block, a connecting block, a first connecting plate, a second connecting plate, a cutting machine assembly, a motor assembly, a threaded rod, a top cover, four third bolts, a limit groove, and a connecting shaft.

[0009] Preferably, protective covers are fixedly installed on both the left and right sides of the tracked engineering vehicle, and both protective covers are set on the upper side of the track. A counterweight is fixedly connected to the right side of the tracked engineering vehicle, and the counterweight balances the weight of the left and right sides of the tracked engineering vehicle.

[0010] Preferably, the sliding block is slidably connected inside the sliding groove, and the connecting block is fixedly connected to the left side of the sliding block;

[0011] A fixing block extends from the left side of the connecting block through the connecting groove. The first connecting plate is fixedly connected to the left side of the connecting block, and the second connecting plate is installed on the left side of the first connecting plate.

[0012] Preferably, the first connecting plate and the second connecting plate are fixedly connected together by four second bolts, which are arranged in a circular array.

[0013] The cutting machine assembly is fixedly connected to the left side of the second connecting plate, and a cutting wheel is fixedly installed at the output end of the cutting machine assembly.

[0014] Preferably, the motor assembly is fixedly connected to the lower side of the fixing block, and the output end of the motor assembly is fixedly connected to a drive shaft;

[0015] The upper end of the drive shaft rotates and extends into the interior of the sliding groove, and the threaded rod is fixedly connected to the upper end of the drive shaft.

[0016] Preferably, the upper end of the threaded rod is threaded through the sliding block, and the top cover is installed on the upper side of the fixed block;

[0017] All four third bolts are installed on the upper side of the top cover, and the four third bolts are arranged in a rectangular array.

[0018] Preferably, the top cover and the fixing block are fixedly connected together by four third bolts, and the limiting groove is opened on the lower side of the top cover;

[0019] The connecting shaft is fixedly connected to the upper end of the threaded rod, and the upper end of the connecting shaft rotates and extends into the interior of the limiting groove.

[0020] Preferably, four micro-balls can be installed on both sides of the sliding block. The micro-balls contact the inner wall of the sliding groove, and the sliding block forms a rolling connection with the sliding groove through the micro-balls, thus converting sliding friction into rolling friction.

[0021] Preferably, the counterweight can be replaced with a detachable structure, which is connected to the right side of the engineering vehicle by bolts, allowing for the replacement of counterweights of different weights.

[0022] Compared with the prior art, the beneficial effects of this utility model are:

[0023] (1) The connecting part of the isolation strip brush cutting device with height adjustment function can automatically adjust the cutting height as needed, thereby enabling the trimming height to be adjusted quickly and accurately during operation, improving the trimming quality and effect.

[0024] (2) When the cutting machine assembly and cutting wheel need to be disassembled, repaired, or replaced, the connecting part of the isolation belt brush-cutting device with height adjustment function can be quickly removed by simply unscrewing the four third bolts to remove the top cover, and then unscrewing the four second bolts. This design greatly simplifies the disassembly and installation process, saves time and labor costs, and improves the maintenance efficiency of the equipment. Attached Figure Description

[0025] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0026] Figure 1 This is a schematic diagram of the connecting component of the isolation belt brush-cutting device with height adjustment function of this utility model;

[0027] Figure 2 This is a schematic diagram of the cross-sectional connection structure of the fixing block of this utility model;

[0028] Figure 3 This is a schematic diagram of the cross-sectional connection structure between the fixing block and the top cover of this utility model;

[0029] Figure 4 This is a schematic diagram of the connection structure between the sliding block and the ball bearing of this utility model;

[0030] Figure 5 This is a schematic diagram of the connection structure at the counterweight of this utility model.

[0031] Reference numerals: 1. Tracked engineering vehicle; 2. Protective cover; 3. Counterweight; 4. Fixing block; 5. Fixing plate; 6. First bolt; 7. Sliding groove; 8. Connecting groove; 9. Sliding block; 10. Connecting block; 11. First connecting plate; 12. Second connecting plate; 13. Second bolt; 14. Cutting machine assembly; 15. Cutting wheel; 16. Motor assembly; 17. Threaded rod; 18. Top cover; 19. Third bolt; 20. Limiting groove; 21. Connecting shaft; 22. Ball bearing. Detailed Implementation

[0032] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0033] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0034] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of terms like "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequence of the indicated technical features.

[0035] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0036] Please see Figure 1-5 This utility model provides a new technical solution: a connecting part for a firebreak cutting device with height adjustment function, including a tracked engineering vehicle 1: serving as the carrier of the entire device and providing an installation base for other components. Its tracked structure enables it to adapt to complex terrain and facilitates operation in different sites.

[0037] Protective cover 2: One on each side, fixedly installed on the tracked engineering vehicle 1 and located on the upper side of the tracks. Its main function is to protect the tracks and prevent damage to the tracks from external debris such as stones and branches during operation, thereby extending the service life of the tracks.

[0038] Counterweight 3: Fixedly connected to the right side of the tracked engineering vehicle 1. Since components such as the cutting mechanism are installed on the left side of the engineering vehicle, it will cause an imbalance in weight between the left and right sides. The function of counterweight 3 is to balance the weight on both sides of the tracked engineering vehicle 1, ensuring the stability of the engineering vehicle during driving and operation, and avoiding accidents such as rollover due to shift in the center of gravity.

[0039] Fixed block 4: Fixedly connected to the left side of the tracked engineering vehicle 1. It serves as the mounting base for multiple components in the cutting mechanism, providing fixed positions for the sliding groove 7, connecting groove 8, and motor assembly 16, ensuring that the entire cutting mechanism can be stably installed on the engineering vehicle.

[0040] Fixing plate 5: Two fixing plates 5 are fixedly connected to the front and rear sides of the fixing block 4 respectively. They are fixedly connected to the tracked engineering vehicle 1 by four first bolts 6, which strengthens the connection between the fixing block 4 and the engineering vehicle, so that the fixing block 4 will not loosen or fall off during the operation of the engineering vehicle, and ensures the stable operation of the cutting mechanism.

[0041] First bolt 6: There are four first bolts 6, which are used to securely connect the fixing block 4 and the two fixing plates 5 to the tracked engineering vehicle 1. By tightening the first bolts 6, the components are tightly joined, ensuring that the fixing block 4 is firmly installed on the engineering vehicle, providing stable support for the cutting mechanism.

[0042] Sliding groove 7: Formed inside the fixed block 4. Provides sliding space for sliding block 9, allowing sliding block 9 to move up and down within it, thereby realizing the height adjustment function of cutting machine assembly 14 and cutting wheel 15.

[0043] Connecting groove 8: It is located on the left side of the fixed block 4 and extends into the interior of the sliding groove 7 on the right side. Its function is to allow the connecting block 10 to extend out of the fixed block 4 from the sliding groove 7 so as to connect to the subsequent cutting mechanism components and realize power transmission and structural connection.

[0044] Sliding block 9: It is slidably connected inside the sliding groove 7. It is a key component for adjusting the height of the cutting mechanism. Driven by the threaded rod 17, it can slide up and down in the sliding groove 7, driving the connecting block 10 and the entire cutting machine assembly 14 and cutting wheel 15 to move up and down, thereby adjusting the cutting height.

[0045] Connecting block 10: Fixedly connected to the left side of sliding block 9, and extending from the fixed block 4 through connecting groove 8. It serves to connect sliding block 9 and first connecting plate 11, and transmits the up and down movement of sliding block 9 to the subsequent cutting components, so that cutting machine assembly 14 and cutting wheel 15 can move together with sliding block 9.

[0046] First connecting plate 11: Fixedly connected to the left side of connecting block 10. As a component connecting the second connecting plate 12, it is fixedly connected to the second connecting plate 12 by four second bolts 13, providing an installation base for the cutting machine assembly 14, and facilitating the disassembly and installation of the cutting machine assembly 14.

[0047] The second connecting plate 12 is installed on the left side of the first connecting plate 11 and is fixedly connected to the first connecting plate 11 by four second bolts 13 arranged in a circular array. It is a direct mounting component of the cutting machine assembly 14, fixing the cutting machine assembly 14 to the cutting mechanism so that the cutting machine assembly 14 can perform cutting operations stably.

[0048] The second bolt 13 consists of four bolts arranged in a circular array. These bolts are used to securely connect the first connecting disc 11 and the second connecting disc 12 together. By tightening the second bolts 13, the two connecting discs are tightly joined, ensuring that the cutting machine assembly 14 will not loosen during operation and guaranteeing the stability and safety of the cutting process.

[0049] Cutting machine assembly 14: Fixedly connected to the left side of the second connecting plate 12. It is one of the core components of the cutting device, containing power components such as a motor, which can drive the cutting wheel 15 to rotate at high speed, realizing the function of pruning and cutting the shrubs in the isolation belt.

[0050] Cutting wheel 15: Installed at the output end of the cutting machine assembly 14. Driven by the cutting machine assembly 14, it rotates at high speed and cuts the shrubs with its sharp blades when it comes into contact with the shrubs in the isolation strip, thus completing the cutting operation.

[0051] Motor assembly 16: Fixedly connected to the lower side of the fixed block 4. It provides power to the entire cutting mechanism. Its output end is fixedly connected to the drive shaft, which transmits power to the threaded rod 17, driving the threaded rod 17 to rotate, thereby realizing the height adjustment of the cutting machine assembly 14 and the cutting wheel 15.

[0052] Threaded rod 17: Fixedly connected to the upper end of the drive shaft at the output end of the motor assembly 16, with its upper thread passing through the sliding block 9. Driven by the motor assembly 16, the threaded rod 17 rotates, and through the engagement of the thread with the sliding block 9, the sliding block 9 moves up and down within the sliding groove 7, thereby achieving height adjustment of the cutting machine assembly 14 and the cutting wheel 15.

[0053] Top cover 18: Installed on the upper side of the fixing block 4, and fixedly connected to the fixing block 4 by four third bolts 19 arranged in a rectangular array. Top cover 18 serves to protect the internal threaded rod 17 and connecting shaft 21, preventing external debris from entering the sliding groove 7 and affecting the normal operation of the components. At the same time, when it is necessary to disassemble the cutting machine assembly 14 and the cutting wheel 15, removing the top cover 18 allows for convenient operation.

[0054] Third bolts 19: There are four third bolts 19 in total, arranged in a rectangular array on the upper side of the top cover 18, used to securely connect the top cover 18 and the fixing block 4 together. By tightening the third bolts 19, the top cover 18 is firmly installed on the fixing block 4, ensuring the protection of the internal components. When disassembly is required, the top cover 18 can be removed by unscrewing the third bolts 19.

[0055] Limiting groove 20: It is formed on the lower side of the top cover 18. The connecting shaft 21 at the upper end of the threaded rod 17 extends into the interior of the limiting groove 20, which limits the connecting shaft 21 and prevents the threaded rod 17 from moving axially during rotation, ensuring that the threaded rod 17 can rotate stably, thereby ensuring the accuracy of the height adjustment of the cutting machine assembly 14 and the cutting wheel 15.

[0056] Connecting shaft 21: Fixedly connected to the upper end of threaded rod 17, with the upper end rotatably extending into the interior of limiting groove 20. As a connecting component between threaded rod 17 and top cover 18, it rotates within limiting groove 20 to achieve stable rotation of threaded rod 17, while limiting axial displacement of threaded rod 17, ensuring the normal operation of the height adjustment function of the entire cutting mechanism.

[0057] The tracked engineering vehicle 1 has protective covers 2 fixedly installed on both sides, and the protective covers 2 are located on the upper side of the tracks to provide protection. A counterweight block 3 is fixedly connected to the right side of the engineering vehicle to balance the weight on both sides and ensure driving stability. A fixing block 4 is fixedly connected to the left side of the engineering vehicle. The fixing plates 5 on the front and rear sides of the fixing block 4 are fixedly connected to the engineering vehicle by four first bolts 6. A sliding block 9 is slidably connected in the sliding groove 7 inside the fixing block 4. A connecting block 10 is fixed to the left side of the sliding block 9 and extends out of the fixing block 4 through the connecting groove 8. A first connecting plate 11 is fixed to the left side of the connecting block 10. A second connecting plate 12 is installed on the left side of the first connecting plate 11 by four second bolts 13 arranged in a circular array. A cutting machine assembly 14 is fixed to the left side of the second connecting plate 12, and a cutting wheel 15 is installed at the output end of the cutting machine assembly 14. A motor assembly 16 is fixed to the lower side of the fixing block 4. The upper end of the drive shaft at its output end rotates and extends into the sliding groove 7. A threaded rod 17 is fixed to the upper end of the drive shaft, and the thread at the upper end of the threaded rod 17 passes through the sliding block 9. The top cover 18 is mounted on the upper side of the fixing block 4 by four third bolts 19 arranged in a rectangular array. A limiting groove 20 is opened on the lower side of the top cover 18. The connecting shaft 21 at the upper end of the threaded rod 17 extends into the limiting groove 20 to limit the threaded rod 17 and ensure that the threaded rod 17 rotates stably.

[0058] When it is necessary to adjust the height of the cutting machine assembly 14 and the cutting wheel 15, the motor assembly 16 is started. The motor assembly 16 drives the transmission shaft to rotate, and the transmission shaft drives the threaded rod 17 to rotate. Since the sliding block 9 is slidably connected in the sliding groove 7, during the rotation of the threaded rod 17, the sliding block 9 will move up and down along the threaded rod 17, thereby driving the connecting block 10, the first connecting plate 11, the second connecting plate 12, the cutting machine assembly 14, and the cutting wheel 15 to move up and down, thereby realizing the adjustment of the cutting height.

[0059] When it is necessary to disassemble, repair or replace the cutting machine assembly 14 and the cutting wheel 15, first unscrew the four third bolts 19 on the top cover 18 and remove the top cover 18. At this time, the connecting shaft 21 at the upper end of the threaded rod 17 will disengage from the limiting groove 20. Then, unscrew the four second bolts 13 in sequence and remove the second connecting plate 12 from the first connecting plate 11. The cutting machine assembly 14 and the cutting wheel 15 can then be quickly removed for easy subsequent operations.

[0060] Example 1: Routine shrub pruning in highway median strips

[0061] Scene: The median strip of a two-way four-lane highway, with shrubs ranging from 0.5 to 1.2 meters in height and of medium density, mainly consisting of common broad-leaved shrubs.

[0062] Operating procedure: The tracked engineering vehicle 1 moves slowly along the guardrail and starts the cutting mechanism: the motor assembly 16 drives the threaded rod 17 to rotate, the sliding block 9 moves up and down along the sliding groove 7, and the cutting wheel 15 is adjusted to a height of 0.8 meters (matching the current average height of the shrubs) through the connecting block 10. The cutting machine assembly 14 drives the cutting wheel 15 to rotate at high speed to perform horizontal pruning of the shrubs. During the process, the height of the cutting wheel is finely adjusted by the motor assembly 16 according to the changes in the height of the shrubs (if a shrub grows to a height of 1.2 meters in some areas, the cutting wheel is raised to the corresponding position). The counterweight block 3 balances the weight of the cutting mechanism on the left side, the protective cover 2 prevents the flying branches and leaves from damaging the tracks during operation, and the fixing plate 5 and the first bolt 6 ensure that the fixing block 4 is not loose.

[0063] Results: 500 meters of isolation strip were trimmed within 1 hour, with neat cut surfaces, height error ≤5cm, and stable equipment operation with no risk of tipping over.

[0064] Example 2: Replacing a regular slider with a ball bearing slider (for scenarios involving continuous height adjustment over extended periods)

[0065] Scenario: A 10-kilometer-long highway median strip needs to be trimmed. During the operation, the height of the cutting wheel needs to be adjusted frequently and continuously according to the height of the shrubs. A single operation takes more than 8 hours.

[0066] Structural change: The ordinary sliding block 9 is replaced with a sliding block with balls 22. Four miniature balls 22 are installed on both sides of the sliding block 9 so that the balls 22 contact the inner wall of the sliding groove 7, thus changing the sliding friction between the sliding block and the sliding groove into rolling friction.

[0067] Usage process: After starting the motor assembly 16, the threaded rod 17 rotates, and the sliding block 9 with ball bearings 22 moves up and down in the sliding groove 7 by rolling the ball bearings 22, thereby driving the connecting block 10, cutting wheel 15 and other components to adjust the height. During continuous 8 hours of operation, the ball bearings 22 continuously contact and roll with the inner wall of the sliding groove 7, reducing frictional resistance. The motor assembly 16 does not need to output too much power to drive the sliding block to move.

[0068] Results: The sliding resistance between the sliding block and the sliding groove is reduced by 40%, the power consumption of the motor assembly 16 is reduced by 15%, and after 8 hours of continuous operation, the temperature rise of the sliding block with ball bearings 22 is 10°C lower than that of the ordinary sliding block, which effectively avoids component wear caused by friction overheating and extends the continuous operation time of the equipment.

[0069] Example 3: Adjustable counterweight (scenario for replacing cutting components)

[0070] Scenario: The same equipment needs to be used alternately with a light cutting wheel (for trimming weeds) and a heavy cutting wheel (for trimming tree branches), with a weight difference of up to 50kg, and the conventional fixed counterweight 3 cannot be used.

[0071] Structural changes: The counterweight 3 is designed as a detachable structure and is connected to the right side of the engineering vehicle by bolts. Different weights of counterweight 3 can be replaced according to the weight of the cutting components.

[0072] Usage process: When using the light cutting wheel, only the basic counterweight block 30kg is used to avoid excessive counterweight causing the right side of the engineering vehicle to sink. After replacing with the heavy cutting wheel, replace with the heavier counterweight block 3, with a total counterweight of 50kg to balance the increased weight on the left side.

[0073] Results: When operating with different cutting components, the left and right tilt angles of the engineering vehicle are all ≤2°, improving driving stability by 40%.

[0074] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A connecting part for a firebreak cutting device with height adjustment function, including a tracked engineering vehicle (1), a fixing block (4) is fixedly connected to the left side of the tracked engineering vehicle (1), and fixing plates (5) are fixedly connected to the front and rear sides of the fixing block (4). The left side of each of the two fixing plates (5) is equipped with a first bolt (6), and the fixing block (4) and the two fixing plates (5) can be fixedly connected to the tracked engineering vehicle (1) by the four first bolts (6); The fixed block (4) has a sliding groove (7) inside, and a connecting groove (8) is provided on the left side of the fixed block (4). The right side of the connecting groove (8) extends into the interior of the sliding groove (7). The feature is that: A cutting mechanism is installed on the fixed block (4), which can trim and cut the shrubs in the isolation zone. The height of the cutting mechanism can also be adjusted. The cutting mechanism includes a sliding block (9), a connecting block (10), a first connecting plate (11), a second connecting plate (12), a cutting machine assembly (14), a motor assembly (16), a threaded rod (17), a top cover (18), four third bolts (19), a limiting groove (20), and a connecting shaft (21).

2. The connecting component for the firebreak cutting device with height adjustment function according to claim 1, characterized in that: The tracked engineering vehicle (1) is fixedly equipped with protective covers (2) on both the left and right sides. Both protective covers (2) are set on the upper side of the track. A counterweight block (3) is fixedly connected to the right side of the tracked engineering vehicle (1).

3. The connecting component for the firebreak cutting device with height adjustment function according to claim 1, characterized in that: The sliding block (9) is slidably connected inside the sliding groove (7), and the connecting block (10) is fixedly connected to the left side of the sliding block (9); A fixing block (4) extends from the left side of the connecting block (10) through the connecting groove (8). The first connecting plate (11) is fixedly connected to the left side of the connecting block (10), and the second connecting plate (12) is installed on the left side of the first connecting plate (11).

4. The connecting component for the firebreak cutting device with height adjustment function according to claim 3, characterized in that: The first connecting plate (11) and the second connecting plate (12) are fixedly connected together by four second bolts (13), which are arranged in a ring array. The cutting machine assembly (14) is fixedly connected to the left side of the second connecting plate (12), and a cutting wheel (15) is fixedly installed at the output end of the cutting machine assembly (14).

5. The connecting component for the firebreak cutting device with height adjustment function according to claim 1, characterized in that: The motor assembly (16) is fixedly connected to the lower side of the fixed block (4), and the output end of the motor assembly (16) is fixedly connected to a drive shaft; The upper end of the drive shaft rotates and extends into the interior of the sliding groove (7), and the threaded rod (17) is fixedly connected to the upper end of the drive shaft.

6. The connecting component for the firebreak cutting device with height adjustment function according to claim 5, characterized in that: The upper end of the threaded rod (17) is threaded through the sliding block (9), and the top cover (18) is installed on the upper side of the fixed block (4); The four third bolts (19) are all installed on the upper side of the top cover (18), and the four third bolts (19) are arranged in a rectangular array.

7. The connecting component for the firebreak cutting device with height adjustment function according to claim 6, characterized in that: The top cover (18) and the fixing block (4) are fixedly connected together by four third bolts (19), and the limiting groove (20) is opened on the lower side of the top cover (18); The connecting shaft (21) is fixedly connected to the upper end of the threaded rod (17), and the upper end of the connecting shaft (21) extends into the interior of the limiting groove (20).

8. The connecting component for the firebreak cutting device with height adjustment function according to claim 3, characterized in that: Four micro-balls (22) can be installed on both sides of the sliding block (9). The micro-balls (22) contact the inner wall of the sliding groove (7). The sliding block (9) forms a rolling connection with the sliding groove (7) through the micro-balls (22), thus converting sliding friction into rolling friction.

9. The connecting component of the firebreak cutting device with height adjustment function according to claim 2, characterized in that: The counterweight (3) can be replaced with a detachable structure and connected to the right side of the engineering vehicle by bolts, allowing for the replacement of counterweights (3) of different weights.

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