阅读说明：本技术 一种园林绿化用可调式切割除草装置 (Adjustable cutting and weeding device for landscaping ) 是由 杨青菊 陈秀梅 侯富荣 秦光霞 胡一平 于华 宋伟栓 闫淑芳 吴莉伟 于 2021-09-10 设计创作，主要内容包括：本发明公开了一种园林绿化用可调式切割除草装置,涉及园林设备技术领域,包括承载架,承载架一侧安装有保护壳,还包括一对均通过铰接座转动安装在保护壳内的转动架,旋转轴上通过调节机构连接有调节套筒,调节套筒上固定有若干个刀片,承载架上设置有电机I,电机I驱动连接有往复升降机构,往复升降机构用于驱动升降块竖直往复运动；本发明通过设置的往复升降机构能驱动转动架进行旋转,使得在刀片修剪草坪之前,两个齿板将草坪中的草进行夹持扶正,使刀片能对草进行充分的切割不易缠绕,而在此期间,旋转的刀片随着调节套筒下移并对草进行旋转切割进行修剪,大大提升了草坪修剪过程的自动程度,且草坪修剪除草更为高效均匀。(The invention discloses an adjustable cutting weeding device for landscaping, which relates to the technical field of garden equipment and comprises a bearing frame, wherein one side of the bearing frame is provided with a protective shell, the adjustable cutting weeding device also comprises a pair of rotating frames which are rotatably arranged in the protective shell through a hinged seat, a rotating shaft is connected with an adjusting sleeve through an adjusting mechanism, a plurality of blades are fixed on the adjusting sleeve, a motor I is arranged on the bearing frame, the motor I is in driving connection with a reciprocating lifting mechanism, and the reciprocating lifting mechanism is used for driving a lifting block to vertically reciprocate; according to the lawn mowing machine, the rotating frame can be driven to rotate through the reciprocating lifting mechanism, so that the two toothed plates clamp and centralize grass in a lawn before the blades trim the lawn, the blades can fully cut the grass and are not easy to wind, and during the period, the rotating blades move downwards along with the adjusting sleeve and rotationally cut the grass to trim, so that the automation degree of the lawn mowing process is greatly improved, and the lawn mowing is efficient and uniform.)

1. The utility model provides a cutting weeding device with adjustable afforestation is with, includes and bears frame (1), bears frame (1) one side and installs protective housing (4), bear frame (1) bottom and rotate and install walking wheel (9), its characterized in that still includes a pair of rotating turret (6) of installing in protective housing (4) through articulated seat (40) rotation, two all be fixed with pinion rack (8) on rotating turret (6), two pinion rack (8) staggered arrangement, bear frame (1) go up vertical slidable mounting have elevator (23), it has transfer line (24) to articulate between elevator (23) and rotating turret (6), elevator (23) bottom is equipped with rotary mechanism, the last a pair of rotation axis (30) of vertical setting of installing of rotary mechanism, be connected with adjusting sleeve (5) through adjustment mechanism on rotation axis (30), a plurality of blades (7) are fixed on the adjusting sleeve (5), a motor I (16) is arranged on the bearing frame (1), the motor I (16) is in driving connection with a reciprocating lifting mechanism, and the reciprocating lifting mechanism is used for driving a lifting block (23) to vertically reciprocate.

2. The adjustable cutting and weeding device for landscaping according to claim 1, wherein the rotating mechanism comprises a rotating sleeve (32) rotatably mounted on the vertical pipe (22) through a bearing connection, a fixed frame (27) is fixedly mounted on the rotating sleeve (32), two rotating shafts (30) are rotatably mounted on the fixed frame (27) through bearing connections, and a driving assembly for driving the rotating sleeve (32) to rotate is arranged on the lifting block (23).

3. The adjustable cutting and weeding device for landscaping according to claim 1, wherein the rotating mechanism further comprises a fixed gear (26) coaxially fixed with the vertical tube (22), and a connecting gear (28) meshed with the fixed gear (26) is fixedly sleeved on the rotating shaft (30).

4. The adjustable cutting and weeding device for landscaping according to claim 1, wherein the driving assembly comprises a motor II (29) fixed on the lifting block (23), an output shaft of the motor II (29) is coaxially connected with a driving gear (41), a driven gear (25) is fixedly sleeved on the rotary sleeve (32), and the driven gear (25) is meshed with the driving gear (41).

5. The adjustable cutting and weeding device for landscaping according to claim 1, wherein the adjustment mechanism comprises a fixed limiting plate (39) fixed on the adjustment sleeve (5), an elastic clamping assembly for locking the rotating shaft (30) is installed on the fixed limiting plate (39), the rotating shaft (30) slidably extends into the adjustment sleeve (5), a clamping strip (37) slidably embedded in the inner wall of the adjustment sleeve (5) is fixed on the side wall of the rotating shaft (30), a rotating frame (31) is slidably sleeved on the vertical pipe (22), and the adjustment sleeve (5) is rotatably installed on the rotating frame (31) through a bearing connection.

6. The adjustable cutting and weeding device for landscaping according to claim 1, wherein the elastic clamping assembly comprises a guide rod (36) slidably penetrating through a fixed limiting plate (39), a positioning wedge block (38) is installed at one end of the guide rod (36), a plurality of fixed wedge blocks (33) are fixedly embedded in the side wall of the rotating shaft (30), the positioning wedge block (38) is clamped between the adjacent positioning wedge blocks (38), a pushing spring (34) is installed between the positioning wedge block (38) and the fixed limiting plate (39), and a pull plate (35) is installed at one end, away from the positioning wedge block (38), of the guide rod (36).

7. The adjustable cutting and weeding device for landscaping according to claim 1, wherein the reciprocating lifting mechanism comprises a rotary table (12) coaxially connected with an output shaft of a motor I (16), a transmission rod (10) is eccentrically hinged on the rotary table (12), one end, away from the rotary table (12), of the transmission rod (10) is hinged with a sliding block (11) slidably connected with the bearing frame (1), a rack (17) is fixed on the sliding block (11), a transmission gear (19) is meshed and connected with the rack (17), and a threaded column (18) in threaded connection with a lifting block (23) is coaxially connected with the transmission gear (19).

8. The adjustable cutting and weeding device for landscaping according to claim 1, wherein the rotary table (12) is in transmission connection with a drive bevel gear (14) through a belt pulley mechanism (13), the drive bevel gear (14) is in meshing connection with a driven bevel gear (15), and the driven bevel gear (15) is coaxially and fixedly connected with the traveling wheels (9).

9. The adjustable cutting and weeding device for landscaping according to claim 1, wherein the carrier (1) is provided with a collection box (2) and a dust collector (3) which are communicated, the inlet end of the dust collector (3) is provided with a flexible conveying pipe (20) extending to the inside of a vertical pipe (22), and one end of the vertical pipe (22) close to the blade (7) is provided with a collection cover (21).

Technical Field

The invention relates to the technical field of garden equipment, in particular to an adjustable cutting and weeding device for landscaping.

Background

Landscaping is an aesthetic natural environment and a rest area created by modifying the terrain to plant trees and flowers, building buildings, arranging garden roads and the like in a certain region by applying engineering technology and artistic means, and is called as a garden, the garden comprises a garden, a residential garden, a small garden, a park, a vegetable garden, an zoo and the like, along with the development of a garden subject, the garden also comprises a forest park, a landscape scenic spot, a natural protection area or a visiting area and a rest resort of a national park, and during the landscaping work, the lawn needs to be trimmed and weeded by a weeding device.

Patent No. CN 109220166B discloses a foldable garden weeder. The foldable garden weeder comprises a bottom plate; the two mounting blocks are symmetrically and fixedly mounted on the top of the bottom plate; the vertical plate is hinged to the two mounting blocks; the two sliding grooves are formed in the top of the bottom plate; the two supporting columns are fixedly arranged in the two sliding grooves respectively; the two first sliding blocks are respectively installed on the two supporting columns in a sliding mode and are respectively located in the two sliding grooves; however, the device is in the use, can not realize pruning the cutting to the lawn in different position areas when automatic walking, and lawn mowing efficiency and effect are not ideal enough, for this reason, provide an adjustable cutting weeding device for afforestation now to solve above-mentioned technical problem.

Disclosure of Invention

The invention aims to provide an adjustable cutting and weeding device for landscaping, which aims to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme:

the utility model provides a cutting weeding device with adjustable afforestation is used, includes and bears the frame, bears frame one side and installs the protective housing, bear the frame bottom and rotate and install the walking wheel, still include a pair of rotating turret, two of all rotating the installation in the protective housing through articulated seat all be fixed with the pinion rack on the rotating turret, two the crisscross setting of pinion rack, bear the frame and go up vertical slidable mounting and have the elevator, it has the transfer line to articulate between elevator and the rotating turret, the elevator bottom is equipped with rotary mechanism, the last a pair of rotation axis of installing vertical setting of rotary mechanism, be connected with adjusting sleeve through adjustment mechanism on the rotation axis, be fixed with a plurality of blade on the adjusting sleeve, bear and be provided with motor I on the frame, the drive of motor I is connected with reciprocal elevating system, reciprocal elevating system is used for driving the vertical reciprocating motion of elevator.

As a modified scheme of the invention: the rotating mechanism comprises a rotating sleeve which is rotatably installed on the vertical pipe through a bearing connection, a fixing frame is fixedly installed on the rotating sleeve, two rotating shafts are rotatably installed on the fixing frame through the bearing connection respectively, and a driving assembly used for driving the rotating sleeve to rotate is arranged on the lifting block.

As a modified scheme of the invention: the rotating mechanism further comprises a fixed gear coaxially fixed with the vertical pipe, and a connecting gear meshed with the fixed gear is fixedly sleeved on the rotating shaft.

As a modified scheme of the invention: the driving assembly comprises a motor II fixed on the lifting block, an output shaft of the motor II is coaxially connected with a driving gear, a driven gear is fixedly sleeved on the rotating sleeve and is meshed with the driving gear.

As a modified scheme of the invention: adjustment mechanism is including fixing the fixed limiting plate on adjusting sleeve, install the elasticity joint subassembly that is used for locking the rotation axis on the fixed limiting plate, the rotation axis slides and extends to inside the adjusting sleeve, the rotation axis lateral wall is fixed with to slide and inlays the card strip of establishing at the adjusting sleeve inner wall, the swivel mount has been cup jointed in the slip on the vertical pipe, the adjusting sleeve passes through the bearing connection and rotates and install on the swivel mount.

As a modified scheme of the invention: elasticity joint subassembly runs through the guide arm of fixed limiting plate including sliding, and the location voussoir is installed to the one end of guide arm, the rotation axis lateral wall inlays to be established and is fixed with the fixed voussoir of a plurality of, the location voussoir joint is adjacent between the location voussoir, install between location voussoir and the fixed limiting plate and support and push away the spring, the arm-tie is installed to the one end that the location voussoir was kept away from to the guide arm.

As a modified scheme of the invention: the reciprocating lifting mechanism comprises a rotary table coaxially connected with an output shaft of a motor I, a transmission rod is eccentrically hinged on the rotary table, one end, far away from the rotary table, of the transmission rod is hinged with a sliding block in sliding connection with the bearing frame, a rack is fixed on the sliding block, a transmission gear is meshed and connected onto the rack, and the transmission gear is coaxially connected with a threaded column in threaded connection with the lifting block.

As a modified scheme of the invention: the turntable is connected with a driving bevel gear through a belt pulley mechanism in a transmission manner, the driving bevel gear is connected with a driven bevel gear in a meshing manner, and the driven bevel gear is coaxially and fixedly connected with the traveling wheels.

As a modified scheme of the invention: the dust collector is characterized in that the collecting box and the dust collector which are communicated are mounted on the bearing frame, the inlet end of the dust collector is provided with a flexible conveying pipe extending to the inside of the vertical pipe, and the end, close to the blade, of the vertical pipe is provided with the collecting cover.

Compared with the prior art, the invention has the beneficial effects that:

1. according to the lawn mowing machine, the rotating frame can be driven to rotate through the reciprocating lifting mechanism, so that the two toothed plates clamp and centralize grass in a lawn before the blades trim the lawn, the blades can fully cut the grass and are not easy to wind, and during the period, the rotating blades move downwards along with the adjusting sleeve and rotationally cut the grass to trim, so that the automation degree of the lawn mowing process is greatly improved, and the lawn mowing is efficient and uniform.

2. The reciprocating lifting mechanism can drive the travelling wheels to realize the integral movement of the bearing frame while driving the two toothed plates to centralize the grass and move the blades downwards to cut, so that the self-propelled lawn mowing range is greatly improved, and the lawn mowing and weeding efficiency is obviously improved.

3. The adjusting mechanism can adjust the adjusting sleeve to slide relative to the rotating shaft, so that the vertical position of the blade is adjusted, the downward moving position of the blade is flexibly adjusted, the lawn trimming operation for landscaping under different trimming requirements is greatly facilitated, and the lawn trimming operation is adaptive to the trimming degree of the lawn.

Drawings

FIG. 1 is a schematic overall structure view of a perspective of the present invention;

FIG. 2 is a schematic overall view from another perspective of the present invention;

FIG. 3 is a schematic view of the present invention with the protective shell removed;

FIG. 4 is an enlarged view of portion A of FIG. 3 according to the present invention;

FIG. 5 is a partial schematic view of the present invention;

FIG. 6 is a schematic view of the adjusting mechanism of the present invention;

FIG. 7 is a schematic illustration of the partial exploded view of FIG. 6 in accordance with the present invention;

fig. 8 is a partial structural schematic diagram of the present invention.

In the figure: 1-a bearing frame; 2-a collection box; 3-a dust collector; 4-protective shell; 5-adjusting the sleeve; 6-a rotating frame; 7-a blade; 8-toothed plate; 9-a traveling wheel; 10-a transmission rod; 11-a slide block; 12-a turntable; 13-a pulley mechanism; 14-drive bevel gear; 15-driven bevel gear; 16-motor I; 17-a rack; 18-a threaded post; 19-a transmission gear; 20-a flexible delivery pipe; 21-a collecting cover; 22-vertical tubes; 23-a lifting block; 24-a transmission rod; 25-a driven gear; 26-fixed gear; 27-a fixed mount; 28-connecting gear; 29-motor II; 30-a rotation axis; 31-a rotating frame; 32-rotating the sleeve; 33-fixing the wedge; 34-pushing the spring; 35-pulling a plate; 36-a guide rod; 37-a card strip; 38-positioning the wedge; 39-fixing a limit plate; 40-a hinged seat; 41-driving gear.

Detailed Description

The technical scheme of the patent is further described in detail by combining the following specific embodiments:

example 1

Referring to fig. 1-8, an adjustable cutting and weeding device for landscaping comprises a bearing frame 1, a protective housing 4 is installed on one side of the bearing frame 1, walking wheels 9 are installed at the bottom of the bearing frame 1 in a rotating mode, the adjustable cutting and weeding device further comprises a pair of rotating frames 6 which are installed in the protective housing 4 in a rotating mode through a hinged seat 40, toothed plates 8 are fixed on the two rotating frames 6, the two toothed plates 8 are arranged in a staggered mode, a lifting block 23 is installed on the bearing frame 1 in a vertical sliding mode, a transmission rod 24 is hinged between the lifting block 23 and the rotating frames 6, a rotating mechanism is arranged at the bottom of the lifting block 23, a pair of rotating shafts 30 which are vertically arranged are installed on the rotating mechanism, an adjusting sleeve 5 is connected onto the rotating shafts 30 through an adjusting mechanism, a plurality of blades 7 are fixed onto the adjusting sleeve 5, a motor I16 is arranged on the bearing frame 1, a reciprocating lifting mechanism is connected to the motor I16 in a driving mode, and the reciprocating lifting mechanism is used for driving the lifting block 23 to vertically reciprocate.

This device carries out position shift control through the rotation of walking wheel 9, carry out the rotary cutting through the rotation of blade 7 to the grass in the lawn and realize pruning weeding effect, the reciprocating elevating system drive elevator 23 vertical reciprocating motion that sets up, in elevator 23 moves down the in-process, elevator 23 drives two rotating turret 6 through transfer line 24 and rotates, two pinion racks 8 of two rotating turret 6 bottoms are close to each other, realize realizing the vertical righting effect of the grass centre gripping in the lawn, meanwhile, elevator 23 moves down and realizes moving down of rotary mechanism, rotation axis 30, adjustment mechanism, sleeve 5 moves down, and then realize that blade 7 moves down and carry out the rotary cutting to the grass of being vertically righted, this cutting action compares current cutting action, have the difficult winding effect of blade 7, can guarantee the abundant level and smooth cutting of grass.

Further, the rotating mechanism comprises a rotating sleeve 32 which is rotatably mounted on the vertical pipe 22 through bearing connection, a fixed frame 27 is fixedly mounted on the rotating sleeve 32, two rotating shafts 30 are rotatably mounted on the fixed frame 27 through bearing connection, a driving assembly for driving the rotating sleeve 32 to rotate is arranged on the lifting block 23, the rotating mechanism further comprises a fixed gear 26 coaxially fixed with the vertical pipe 22, and a connecting gear 28 meshed with the fixed gear 26 is fixedly sleeved on the rotating shaft 30.

Wherein, drive assembly is including fixing motor II29 on elevator 23, and the output shaft coaxial coupling of motor II29 has driving gear 41, and the fixed cover is connected with driven gear 25 on rotary sleeve 32, and driven gear 25 is connected with driving gear 41 meshing.

Through the above-mentioned setting, starter motor II29, motor II29 drive driving gear 41 is rotatory, driving gear 41 drive driven gear 25 with it meshing is rotatory, driven gear 25 drive rotating sleeve 32 is rotatory relatively vertical pipe 22, rotating sleeve 32 drive mount 27 rotates this moment, mount 27 drive rotation axis 30 rotates around vertical pipe 22, meanwhile connecting gear 28 and fixed gear 26 meshing on the rotation axis 30 are connected, it is rotatory around self axis to realize rotation axis 30, rotation axis 30 drives adjusting sleeve 5 through adjustment mechanism and drives blade 7 rotatory, it is rotatory around vertical pipe 22 axis to realize blade 7 when rotatory around rotation axis 30 axis, the realization is pruned the abundant rotatory cutting in lawn grass, the pruning effect on afforestation in-process lawn has been promoted greatly.

Example 2

Referring to fig. 1-8, based on embodiment 1, in addition, the adjusting mechanism of the apparatus includes a fixed limiting plate 39 fixed on the adjusting sleeve 5, an elastic clamping assembly for locking the rotating shaft 30 is installed on the fixed limiting plate 39, the rotating shaft 30 extends into the adjusting sleeve 5 in a sliding manner, a clamping strip 37 embedded in the inner wall of the adjusting sleeve 5 in a sliding manner is fixed on the side wall of the rotating shaft 30, a rotating frame 31 is slidably sleeved on the vertical tube 22, and the adjusting sleeve 5 is rotatably installed on the rotating frame 31 through a bearing connection.

The rotation axis 30 of this device is at rotatory in-process, and it is rotatory through the card strip 37 drive adjusting sleeve 5 of installing on it, and adjusting sleeve 5 drive blade 7 is rotatory to be realized doing the rotation to the lawn and repaiies reducing, drives adjusting sleeve 5 vertical slip of rotation axis 30 through adjusting swivel mount 31 for the height realization of the rotatory cutting of blade 7 is adjusted.

Specifically, the elastic clamping assembly comprises a guide rod 36 which penetrates through a fixed limiting plate 39 in a sliding mode, a positioning wedge block 38 is installed at one end of the guide rod 36, a plurality of fixed wedge blocks 33 are fixedly embedded in the side wall of the rotating shaft 30, the positioning wedge blocks 38 are clamped between the adjacent positioning wedge blocks 38, a pushing spring 34 is installed between the positioning wedge blocks 38 and the fixed limiting plate 39, and a pulling plate 35 is installed at one end, away from the positioning wedge blocks 38, of the guide rod 36.

In the vertical gliding process upwards of relative rotation axis 30 at adjusting sleeve 5, the wedge face of location voussoir 38 and the wedge face slip butt of fixed voussoir 33, the elasticity that supports and pushes away spring 34 is supported and is pushed down the effect and realize pegging graft and fix between two adjacent fixed voussoirs 33, the realization is to rotation axis 30 and adjusting sleeve 5's relative fixation this moment, and pulling arm-tie 35 drives guide arm 36 and slides far away from rotation axis 30, the realization is extracted two fixed voussoirs 33 with location voussoir 38 between, convenient to the nimble slip regulation of adjusting sleeve 5, make the blade 7 cutting height realize freely adjusting, conveniently adjust in a flexible way according to the cutting pruning degree of grass, the high efficiency that has made things convenient for afforestation lawn pruning action is opened greatly.

Example 3

Referring to fig. 1-8, on the basis of embodiment 2, in addition, the reciprocating lifting mechanism includes a rotary table 12 coaxially connected with an output shaft of a motor I16, a transmission rod 10 is eccentrically hinged on the rotary table 12, a sliding block 11 slidably connected with the carriage 1 is hinged at one end of the transmission rod 10 away from the rotary table 12, a rack 17 is fixed on the sliding block 11, a transmission gear 19 is engaged and connected on the rack 17, and a threaded column 18 in threaded connection with the lifting block 23 is coaxially connected with the transmission gear 19.

The motor I16 of this device drives the carousel 12 rotatory, carousel 12 drives slider 11 through transfer line 10, the reciprocating linear slip of rack 17, rack 17 drive gear 19 is clockwise and anticlockwise rotatory in turn, make screw thread post 18 clockwise and anticlockwise rotatory in turn, get into and realize the vertical reciprocating type lift of lifter 23, when lifter 23 descends, pinion rack 8 carries out vertical rightting to the grass, simultaneously blade 7 moves down and carries out the rotary cutting to the grass of being vertically rightted, along with walking wheel 9 to the holistic removal of this device, realize orderly lawn cutting pruning operation.

In addition, the rotary table 12 is connected with a driving bevel gear 14 through a belt pulley mechanism 13 in a transmission manner, the driving bevel gear 14 is connected with a driven bevel gear 15 in a meshing manner, the driven bevel gear 15 is coaxially and fixedly connected with the traveling wheels 9, the rotary table 12 drives the driving bevel gear 14 to rotate through the belt pulley mechanism 13 while the lifting block 23 vertically lifts, the driving bevel gear 14 drives the driven bevel gear 15 meshed with the driving bevel gear to rotate, and then the traveling wheels 9 rotate, namely the lawn grass is centered, cutting and trimming position adjustment are continuously performed, the automation degree of lawn trimming in the green garden is greatly improved, and the trimming effect is remarkably improved.

In addition, the collecting box 2 and the dust collector 3 which are communicated are arranged on the bearing frame 1, the inlet end of the dust collector 3 is provided with a flexible conveying pipe 20 which extends to the inside of a vertical pipe 22, and one end of the vertical pipe 22 close to the blade 7 is provided with a collecting cover 21.

When blade 7 carries out the rotation cutting to lawn chinese herbal medicine, start dust catcher 3, the produced negative pressure of dust catcher 3 makes the grass of cutting up by blade 7 enter into along gathering together cover 21, vertical pipe 22 and realize in time the collection box 2 and collect the effect, has saved and has carried out the work that garrulous grass was collected in addition after the lawn was pruned, has saved the amount of manual labor greatly, and afforestation's lawn pruning effect obtains showing and promotes.

In conclusion, the rotary frame 6 can be driven to rotate by the reciprocating lifting mechanism, so that the two toothed plates 8 clamp and centralize grass in the lawn before the blade 7 trims the lawn, the blade 7 can fully cut the grass and is not easy to wind, and the rotating blade 7 moves downwards along with the adjusting sleeve 5 and rotatably cuts the grass to trim the grass during the period, so that the automation degree of the lawn trimming process is greatly improved, and the lawn trimming and weeding are more efficient and uniform. The reciprocating lifting mechanism can drive the travelling wheels 9 to realize the integral movement of the bearing frame 1 while driving the two toothed plates 8 to centralize the grass and move the blades 7 downwards for cutting, thereby realizing self-propelled lawn trimming, greatly improving the trimming range of the lawn and obviously improving the weeding efficiency of the lawn trimming. The adjusting mechanism can adjust the adjusting sleeve 5 in a sliding manner relative to the rotating shaft 30, so that the vertical position of the blade 7 is adjusted, the downward moving position of the blade 7 is flexibly adjusted, the lawn trimming mechanism can adjust the lawn trimming position adaptively according to the trimming degree of the lawn, and the lawn trimming operation under different trimming requirements is greatly facilitated.

It should be particularly noted that although the present specification describes embodiments, not every embodiment includes only a single technical solution, and such description of the specification is for clarity only, and those skilled in the art should take the specification as a whole, and the technical solutions in the embodiments may be appropriately combined to form other embodiments that may be understood by those skilled in the art, and the above embodiments only express the preferred embodiments of the technical solutions, and the description thereof is more specific and detailed, but cannot therefore be understood as the technical solutions.