CN115462267A

CN115462267A - Adjustable guardrail for plant protection

Info

Publication number: CN115462267A
Application number: CN202111189913.9A
Authority: CN
Inventors: 周广金
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-10-01
Filing date: 2021-10-01
Publication date: 2022-12-13

Abstract

The utility model provides an adjustable guardrail is used in plant protection, includes a plurality of stands and a plurality of pull rod, is connected through the pull rod between the adjacent stand, the stand is height-adjustable stand, the stand has a plurality of first stands, the second stand of setting at the guardrail both ends of setting at the guardrail middle part, and first stand and second stand all are provided with fixed ear, and between the adjacent first stand, between first stand and the adjacent second stand part or whole all set up the pull rod, and the pull rod is fixed on fixed ear. The first stand column and the second stand column respectively comprise a tubular fixing rod, a telescopic rod is arranged in the inner cavity of the fixing rod in a telescopic mode, and a fastening assembly is arranged between the fixing rod and the telescopic rod. Through stand and the pull rod structure with adjustable height, can make things convenient for the guardrail structure of landform cost application, cover such as sun-proof net, insulation material outside the guardrail and protect, plant protection demands such as sun-proof, heat preservation, moisturizing that can adapt to multiple plant.

Description

Adjustable guardrail for plant protection

Technical Field

The application relates to a guardrail structure, concretely relates to guardrail with adjustable plant protection is used.

Background

After the plants such as vegetables, flowers and seedlings are planted, transplanted or planted, the plants are usually shaded, sealed and protected by heat preservation for the requirements of sun protection, moisture preservation, heat preservation and the like. In particular, many green gardening plants in northern areas are not resistant to severe cold, and need to be insulated and windproof in order to live through winter, and the common method is to arrange guardrails around the plants and arrange coverings (usually non-woven fabrics, tarpaulins, sunshade nets and the like) around the guardrails or at the tops of the guardrails for enclosure.

Protection guardrail that plant protection used among the prior art mostly sets up temporarily, and artifical timber, bamboo that utilizes when needs, utilizes iron wire, rope etc. to carry out the ligature, forms the guardrail that sets up temporarily around the plant to cover the tarpaulin, still need be at the peripheral fixed stay cord sometimes. However, the guardrail structure wastes a large amount of wood, needs to be processed with high labor cost, is difficult to be reused, can be generally used for one season or one time, cannot meet the requirements of green plant height and size range adjustment, has low reuse rate, and causes a large amount of material waste. There is a need for a reusable guard rail that can be sized for different plant sizes and heights, and different settings.

Disclosure of Invention

Based on the problem that above-mentioned prior art exists, the technical problem that this application will be solved provides a guardrail with adjustable plant protection, and this guardrail can conveniently height-adjusting, length, can set up the guardrail of co-altitude and length to the not co-altitude plant, can adapt to the protection demand of multiple plant height, range to can reuse, resources are saved.

The technical scheme that above-mentioned technical problem was solved in this application does, a plant and protect and use adjustable guardrail, including a plurality of stands and a plurality of pull rod, be connected through the pull rod between the adjacent stand, the stand is height-adjustable stand, the stand has a plurality of settings at the first stand of guardrail middle part, sets up the second stand at the guardrail both ends, and first stand and second stand all are provided with fixed ear, between the adjacent first stand, between first stand and the adjacent second stand part or all set up the pull rod, and the pull rod is fixed on fixed ear. Through stand and the pull rod structure with adjustable height, can make things convenient for the guardrail structure of landform cost application, cover such as sun-proof net, insulation material outside the guardrail and protect, the visual heat preservation demand of the protection cover of setting is selected, like non-woven fabrics, waterproof oilcloth, waterproof heat preservation cotton quilt etc. can adapt to plant protection demands such as sun-proof, heat preservation, the moisturizing of multiple plant.

Further, first stand, second stand all include pipy dead lever, and scalable the being provided with the telescopic link in the dead lever inner chamber, be provided with fastening component between dead lever and the telescopic link, fixed ear includes the fixed ear of first fixed ear, second, and it sets up respectively on dead lever and the telescopic link, be convenient for support the stand. Through the telescopic link at the flexible structure that sets up of dead lever inner chamber, can adjust the height of stand, can adapt to the not demand that the plant of co-altitude set up the guardrail, can repetitious usage, practiced thrift the cost greatly.

Furthermore, the fixing rod is provided with an elongated slot, the telescopic rod is provided with a positioning hole, the elongated slot corresponds to the positioning hole in position, the fastening component is a bolt and is arranged between the fixing rod and the telescopic rod, and the bolt penetrates through the positioning hole and can be arranged in the elongated slot in a sliding manner to lock and position the fixing rod and the telescopic rod. By utilizing the telescopic rod positioning hole and the corresponding bolt structure, the position of the telescopic rod and the position of the fixed rod after adjustment can be conveniently fastened and positioned, so that the height cannot be changed at will.

Furthermore, the pull rod is a telescopic pull rod, and the pull rods arranged between the adjacent first upright columns and between the first upright columns and the adjacent second upright columns are transverse pull rods, diagonal pull rods or crossed pull rods; the pull rod comprises a support rod and a telescopic rod, the support rod is provided with a C-shaped groove, the telescopic rod is movably and telescopically arranged in the C-shaped groove of the support rod, and a fixing assembly is arranged between the support rod and the telescopic rod; the pull rod tip have with the stiff end that the fixed ear of stand is connected, the stiff end includes first stiff end, second stiff end, and the one end that telescopic link was kept away from to branch is provided with first stiff end, and the one end that branch was kept away from to the telescopic link is provided with the second stiff end. The length of the pull rod can be conveniently adjusted by the aid of the pull rod design of the telescopic structure, and the telescopic structure is suitable for traction fixation between the first stand columns with different intervals and between the first stand column and the second stand column.

Furthermore, a first long groove is formed in the back of the C-shaped groove of the support rod, a second long groove is formed in the telescopic rod after the telescopic rod is inserted into the C-shaped groove and corresponds to the first long groove, the fixing component is a bolt, and the bolt is arranged at the overlapping position of the first long groove and the second long groove to fix and position the support rod and the telescopic rod. When the length of the telescopic rod of the pull rod is adjusted, the first long groove is opposite to the second long groove, the bolt is arranged between the first long groove and the second long groove, and after the length is adjusted in place, the bolt is screwed down to realize the locking and positioning of the support rod and the telescopic rod. The telescopic pull rod with the structure can adapt to various working conditions, if one telescopic pull rod is arranged, the bolt can be fixed at any position of the superposition position of the first long groove and the second long groove, if two crossed telescopic pull rods are arranged, the bolt can be arranged at the crossed position of the two crossed pull rods, the fixing of a plurality of pull rods is realized by using one bolt, and meanwhile, the structural strength of the crossed pull rods is improved.

Furthermore, the first stand column and the second stand column further comprise a first fixed hook and a second fixed hook which are respectively arranged at the bottom of the fixed rod and the top of the telescopic rod, and the first fixed hook and the second fixed hook are located outside an area surrounded by the guardrails after the first stand column and the second stand column are connected through the pull rod to form the guardrails. The first fixing hook and the second fixing hook are arranged on the stand column, so that the pull rope can be conveniently tied to fix shelters such as tarpaulin, or directly fix a tied rope on the tarpaulin.

Furthermore, a fixing pad is arranged in an opening of the C-shaped groove of the supporting rod, and the bolt penetrates through the fixing pad to fixedly connect the telescopic rod with the supporting rod. The nut or the nut of bolt one end is used for on branch, utilizes the fixed bolster, can be so that the nut or the nut of the bolt other end is used for on the fixed bolster, and the fixed bolster is pressed on the telescopic link, has realized the fixed position of branch and telescopic link, and it should be pointed out that the thickness of fixed bolster is in order to be greater than the wall thickness of branch C shape groove opening part as being suitable to the fixed bolster salient is in branch, the bolt fixed position of being convenient for during the feasible location.

Further, first stand, second stand still include the hood, and it sets up at the top of telescopic link. Set up the hood at the stand top, can utilize the hood to support the tarpaulin that covers, avoid the tarpaulin direct action on the telescopic link and be cut open. The plug is fixedly arranged at the bottom of the fixing rod, the plug is provided with a tip part which can be inserted into the ground to be fixed, a baffle ring which is abutted against the bottom of the fixing rod and a plug fixing part which is inserted into an inner cavity of the fixing rod to be positioned, screw holes are arranged on the circumferential side surface of the plug fixing part, holes corresponding to the positions of the screw holes are formed in the fixing rod, and screws penetrate through the holes in the fixing rod and are in threaded connection with the screw holes. The pointed portion of the plug is inserted into the foundation or the soil layer to be fixed, the bottom of the fixing rod is abutted against the baffle ring of the plug to be positioned, the plug fixing portion is inserted into the inner cavity of the fixing rod, and the fixing rod and the plug fixing portion are locked by the aid of the set screws, so that the stand column is conveniently fixed on the ground.

Furthermore, the second fixed end of the pull rod is a bent end relative to the main body of the telescopic rod, and when the telescopic rod is inserted into the C-shaped groove of the support rod, the second fixed end corresponds to the first fixed end. The second fixing end is bent to make the second fixing end and the first fixing end be in the same plane with the side where the first fixing end is attached to the fixing lug of the upright post, so that the first fixing end and the second fixing end can be aligned and fixed to the corresponding fixing lug of the opposite upright post.

Further, first stiff end and second stiff end all are provided with the fixed orifices, first fixed ear, the fixed ear of second have with the corresponding hole in fixed orifices. The pull rod can be conveniently fixed on the adjacent upright posts through bolts through the fixing holes of the two fixing ends of the pull rod and the corresponding hole structures on the fixing lugs of the upright posts.

The beneficial effect of this application is, the adjustable guardrail is used in plant protection of this application, when enclosing to the horticulture plant, first stand, second stand and the fixed flexible pull rod of usefulness can conveniently adjust length, and the guardrail that adapts to not co-altitude and length sets up the demand, and the guardrail sets up the completion back, can cover sun-proof net, insulation material etc. outward and protect, adapts to the plant protection demand of multiple plant. The long groove structures which can be aligned are respectively arranged on the supporting rod and the telescopic rod, so that the supporting rod and the telescopic rod can be conveniently locked and positioned by bolts, and the telescopic pull rod with the structure can meet the requirements of various working conditions, such as a single pull rod or two crossed pull rod structures. The utility model provides a dead lever and telescopic link structure of scalable stand for stand altitude mixture control is convenient, can adapt to the not demand that the plant of co-altitude set up the guardrail, and utilizes the plug structure who sets up, can conveniently make things convenient for the construction of guardrail subaerial direct mount stand. After the stand sets up, can utilize first fixed ear, the fixed ear of second to set up the pull rod structure between the adjacent stand and fix, the pull rod can the level set up, also can slope the setting for the stand can stably set up, and the guardrail structure of formation is firm, all around or shielding such as top reuse tarpaulin cover can. The height and the length of the upright post and the pull rod can be conveniently adjusted, the plant enclosure requirements of various heights and sizes can be met, the device can be repeatedly used for many times, the cost is greatly saved, and the construction is convenient.

Drawings

FIG. 1 is a three-dimensional perspective view of an adjustable guardrail for plant protection of the present application;

FIG. 2 is a three-dimensional perspective view of a first upright of the present application;

FIG. 2base:Sub>A is an enlarged view of section A-A of FIG. 2;

FIG. 3 is a three-dimensional exploded view of a first column of the present application;

FIG. 3a is an enlarged view of a portion of FIG. 3 at J;

FIG. 4 is a three-dimensional perspective view of a second stud of the present application;

FIG. 4a is an enlarged view of section B-B of FIG. 4;

FIG. 5 is a three-dimensional perspective view of the second upright from another perspective, as viewed from the upper rear side;

FIG. 6 is a three-dimensional exploded view of a second column of the present application;

FIG. 7 is a three-dimensional perspective view of a tie rod of the present application;

FIG. 7a is an enlarged view of a portion of FIG. 7 at K;

FIG. 8 is a three-dimensional perspective view of another angle of the tie rod of the present application;

FIGS. 8a, 8b, 8c are enlarged partial views of FIG. 8 at L, M, N, respectively;

FIG. 9 is a three-dimensional exploded view of the tie rod of the present application;

FIG. 10 is a three-dimensional perspective view of the present application with two tie rods in use across;

FIG. 10a is a partial enlarged view at O of FIG. 10;

FIG. 11 is a top view of the telescoping pull rod shown in FIG. 10;

FIG. 12 is a three-dimensional perspective view of a tie rod of another construction of the present application;

FIG. 12a is an enlarged view of a portion of FIG. 12 at P;

FIGS. 13a-13I are enlarged partial schematic views taken at A-I of FIG. 1, showing primarily the bolt connection structure at various locations;

description of reference numerals:

1. a first upright post, 2a second upright post, 3a pull rod, 5 a first assembly bolt, 6 a second assembly bolt,

11 fixing rods, 111 first fixing lugs, 112 first fixing hooks, 113 long grooves, 114 bolts, 115 screws, 12 telescopic rods, 121 second fixing lugs, 122 second fixing hooks, 123 positioning holes, 13 top caps, 131 top cap fixing parts, 14 plugs, 141 tip parts, 142 retaining rings and 143 plug fixing parts;

21 fixing rod a,211 first fixing lug a,212 first fixing hook a,213 long groove a,214 screw a,215 screw b,22 telescopic rod a,221 second fixing lug a,222 second fixing hook a,223 positioning hole a,23 top cap a,231 top cap fixing part a,24 plug a;

31 support rod, 311 first fixed end, 312 first long groove, 32 telescopic rod, 321 second fixed end, 322 second long groove, 33 bolt, 331 fixed pad and 332 clamping piece.

Detailed Description

As shown in figure 1, the adjustable guardrail is used in plant protection of this application, including a plurality of stands and a plurality of pull rod, be connected through the pull rod between the adjacent stand, the stand is height-adjustable stand, the stand has a plurality of first stands 1 that set up at the guardrail middle part, sets up the second stand 2 at the guardrail both ends, and first stand 1 and second stand 2 all are provided with fixed ear, and between the adjacent first stand, between first stand and the adjacent second stand part or all set up pull rod 3, and the pull rod is fixed on fixed ear. The utility model provides a

first stand

1, 2 main differences of second stand do, and first stand 1 sets up in the middle part, and second stand 2 sets up in horizontal or fore-and-aft end position, the corner position of guardrail promptly, and the stand of two kinds of structures can make things convenient for the setting of guardrail. In the guardrail structure shown in fig. 1, two first vertical columns 1 are respectively arranged on two sides of the guardrail, two second vertical columns 2 are respectively arranged on two end parts of the guardrail, and of course, if the guardrail is wider in the width direction, a plurality of first vertical columns 1 can be arranged between the two second vertical columns 2 on the end parts, and the structure is similar to the structure in the length direction.

Fig. 2 to 6 show the structures of the first and

second uprights

1, 2, which have similar structures. First stand 1, second stand 2 all include pipy dead lever 11, and scalable being provided with telescopic link 12 in dead lever 11 inner chamber, being provided with fastening component between dead lever 11 and the telescopic link 12, fixed ear includes first fixed ear 111, the fixed ear 121 of second, and it sets up respectively on dead lever 11 and the telescopic link 12. In order to adjust the height of the upright, the fixing rod 11 is provided with a long groove 113, the telescopic rod 12 is provided with a positioning hole 123, the position of the long groove 113 corresponds to the position of the positioning hole 123, the fastening component is a bolt 114 which penetrates through the positioning hole 123 and can be slidably arranged in the long groove 113, and the bolt 114 is arranged between the fixing rod 11 and the telescopic rod 12 to lock and position the fixing rod 11 and the telescopic rod 12.

Referring to fig. 1, a first upright post 1 and a second upright post 2 are mainly different in arrangement positions in a guardrail, the second upright post 2 is mainly arranged at a corner of the guardrail, and the first upright post 1 is mainly arranged at a straight part of the guardrail. Which makes them structurally slightly different. The first fixing lug 111 and the second fixing lug 112 of the first upright post 1 are respectively arranged at two opposite sides of the fixing rod 11 and the telescopic rod 12, and an included angle of 180 degrees is formed in the embodiment, and certainly, when a non-rectangular irregular guardrail (such as a polygonal guardrail) is arranged, the included angle can be smaller than 180 degrees; the first fixing lug 111 and the second fixing lug 112 of the second upright post are respectively arranged on one side of the fixing rod 11 and one side of the telescopic rod 12 facing the adjacent first upright post 1 and/or second upright post 2, and the included angle between the first fixing lug 111 and the second fixing lug 112 is smaller than 180 degrees, which is a right angle of 90 degrees in the embodiment. The guard rail of this embodiment is rectangular in shape.

In addition, the first column 1 and the second column 2 may be different in cross-sectional shape. As shown in fig. 2 to 6, in order to facilitate the extension and the fixation of the upright, two opposite sides of the fixing rod 11 and two opposite sides of the telescopic rod 12 of the first upright 1 respectively have planes arranged in parallel, the first fixing lug 111 and the second fixing lug 112 are respectively arranged on the planes of the fixing rod 11 and the telescopic rod 12, two opposite side planes of the fixing rod 11 are respectively provided with a long groove 113, a through positioning hole 123 is arranged on the opposite plane of the telescopic rod 12 near the bottom, and the bolt 114 passes through the long groove 113 and the positioning hole 123 to fix and position the fixing rod 11 and the telescopic rod 12. For more clear description of the structure of the second column 2, the feature name of the second column 2 is given with the suffix "a" for distinction, and the feature of the second column 2 given with the suffix "a" has the same or similar structure as the corresponding feature of the first column 1 without specifying the shape and structural distinction of the feature. As described above, in this embodiment, the second upright 2 is located at a corner position of the rectangular guardrail, the fixing rod a21 and the telescopic rod a22 of the second upright have two planes that are vertically arranged, the two planes of the fixing rod a21 and the telescopic rod a22 are respectively arranged oppositely, so that the telescopic rod a22 is inserted into the fixing rod a21, one plane of the fixing rod a21 is provided with the long groove a213, a positioning hole a223 is arranged at a bottom position of the telescopic rod a22 and the plane provided with the long groove a213, the positioning hole a213 is a threaded hole, which is different from the first upright 1 fixed by the bolt 114, and the second upright 2 is threaded onto the positioning hole a213 through the long groove a213 by the bolt a214, so as to realize the fixed positioning of the fixing rod a21 and the telescopic rod a 22. The first fixing lug a211 and the second fixing lug a221 are respectively arranged on the planes of the fixing rod a21 and the telescopic rod a22, the included angle of the first fixing lug a211 on the fixing rod a21 is a 90-degree right angle, and the included angle of the second fixing lug a22a on the telescopic rod a22 is a 90-degree right angle.

Referring to fig. 1, a tie bar structure is arranged between adjacent first columns 1 and between the first columns 1 and adjacent second columns 2, and the tie bars 3 may be in the form of tie bars, diagonal tie bars or cross tie bars. In fig. 1, tie rods and diagonal tie rods are arranged between a first column 1 and a second column 2, two tie rods are arranged between the first column 1, and a cross tie rod are arranged between the second column 2. As shown in fig. 7-12 a, the structure of the pull rod 3 is schematically illustrated, and the pull rod 3 is a retractable pull rod. The pull rod 3 comprises a support rod 31 and a telescopic rod 32, the support rod 31 is provided with a C-shaped groove, the telescopic rod 32 is movably arranged in the C-shaped groove of the support rod 31 in a telescopic mode, and a fixing assembly is arranged between the support rod 31 and the telescopic rod 32. The back of the C-shaped groove of the support rod 31 is provided with a first long groove 312, the telescopic rod 32 is inserted into the C-shaped groove and then provided with a second long groove 322 corresponding to the first long groove 312, the fixing component is a bolt 33, and the bolt 33 is arranged at the first long groove 312 and the second long groove 322 to fix and position the support rod 31 and the telescopic rod 32. When the length of the telescopic rod 32 of the pull rod 3 is adjusted, the first long groove 312 is opposite to the second long groove 322, the bolt is arranged between the first long groove 312 and the second long groove 322, and after the length is adjusted in place, the bolt is screwed to lock and position the support rod 31 and the telescopic rod 32. In the application, the elongated slots are respectively arranged on the support rod 31 and the telescopic rod 32, so that the telescopic pull rod 3 with one structure can be adapted to various working conditions, for example, when one telescopic pull rod is arranged, the position of the bolt 33 can be fixed at any position of the overlapping position of the first elongated slot 312 and the second elongated slot 322, when two crossed telescopic pull rods are arranged, the position of the bolt 33 is arranged at the crossed position of the two crossed pull rods, the fixing of a plurality of pull rods 3 is realized by using one bolt 33, and meanwhile, the structural strength of the crossed pull rods is improved.

In order to fix and position the support rod 31 and the telescopic rod 32 of the pull rod 3 better, a fixing pad 331 is arranged in an opening of the C-shaped groove of the support rod 31, and after the bolt 33 passes through a through hole on the fixing pad 331, the bolt respectively passes through the first long groove 312 and the second long groove 322, so that the telescopic rod 32 and the support rod 31 are fixedly connected. As shown in FIG. 8b, the thickness of the fixing pad 331 is larger than the thickness of the C-shaped slot of the support rod 31 on both sides of the opening, when the bolt 33 is tightened, the fixing pad 331 acts directly on the fixing pad 331 to press the fixing pad 331 against the telescopic rod 32, and the other side of the telescopic rod 32 presses against the support rod 31 to form a stable positioning. The nut or the nut at one end of the bolt 33 acts on the support rod, the nut or the nut at the other end of the bolt acts on the fixing pad by utilizing the fixing pad, and the fixing pad is pressed on the telescopic rod, so that the fixing and positioning of the support rod and the telescopic rod are realized.

As shown in fig. 10, 10a, 11 and 13a, in the case of the cross tie rod, the fixed ends of the two telescopic tie rods 3 on the same side are respectively connected to the upper and lower fixing lugs of the same column, and are fixed at the intersection of the two telescopic tie rods by a longer bolt 33, at this time, the openings of the C-shaped slots of the two support rods are opposite, that is, the directions of the openings are opposite, and the first long slots 312 are oppositely arranged. At the fixing position of the bolt 33, the C-shaped groove openings of the two pull rods 3 are respectively provided with a fixing pad 331, a clamping piece 332 is arranged between the pull rods 3, the thickness of the clamping piece 332 is the same as that of the first fixing lug and the second fixing lug, and the clamping piece 332 is provided with a hole through which the bolt 33 can pass. When the height and the structure of the adjacent upright posts are the same, the intersection of the two telescopic pull rods is just positioned in the middle of the pull rod, and the bolt 33 is positioned in the position to form hinged connection for the two telescopic pull rods. Through this alternately telescopic link structure for the guardrail structure that sets up is more firm.

The end of the pull rod 3 has a fixed end connected to the fixed ears of the first and

second columns

1 and 2, the fixed end includes a first fixed end 311 and a second fixed end 321, the end of the rod 31 far away from the rod 32 is provided with the first fixed end 311, and the end of the rod 32 far away from the rod 31 is provided with the second fixed end 321. The first fixing end 311 and the second fixing end 321 are provided with fixing holes, and the first fixing lug 111 and the second fixing lug 121 are provided with holes corresponding to the fixing holes, so that the pull rod can be conveniently connected and fastened with an adjacent upright column by using bolts.

In order to facilitate the connection between the pull rod 3 and the fixing ears (including the first fixing ear 111 and the second fixing ear 121) of the column (including the first column 1 and the second column 2), the second fixing end 321 of the pull rod is a bending end relative to the main body of the telescopic rod 32, when the telescopic rod 32 is inserted into the C-shaped groove of the support rod 31, the first fixing end 311 and the second fixing end 321 are respectively connected with the fixing ears of the column, and the bending end is arranged to enable the fixing planes of the first fixing end 311 and the second fixing end 321 to be attached to the fixing ears, so that the fixing is firmer. As shown in fig. 12 and 12a, in another embodiment of the tie rod, the bending end is bent at a larger angle, which is mainly used for providing the cross tie rod, as shown in fig. 1, 13a, 13b, and 13c, the first fixing end 311 and the second fixing end 321 of the cross tie rod need to be connected to different sides of the two fixing lugs, and the bending of the bending end needs to consider the thickness of the fixing lugs additionally.

As shown in fig. 2 to 6 and fig. 13c to 13i, in order to fix a shield such as tarpaulin disposed outside the guardrail, the first upright column 1 and the second upright column 2 are respectively provided with a first fixing hook 112 and a second fixing hook 122, which are respectively disposed at the bottom of the fixing rod 11 and at the top of the telescopic rod 12, and after the first upright column 1 and the second upright column 2 are connected by the pull rod 3 to form the guardrail, both the first fixing hook 112 and the second fixing hook 122 are disposed outside the area surrounded by the guardrail. Thus, the first fixing hook 112 and the second fixing hook 122 can fix the pull cord to the screen such as the tarpaulin.

In addition, the top caps 13 are arranged at the top parts of the telescopic rods of the first upright column 1 and the second upright column 2, and the bottom parts of the top caps 13 are provided with top cap fixing parts 131 matched with the inner cavity of the telescopic rods, and the top cap fixing parts can be inserted into the inner cavity of the telescopic rods to realize fixing. The top cap 13 is used for supporting the covered shielding objects such as tarpaulin and the like, so that the shielding objects are prevented from being directly acted on the telescopic rod and being scratched. The plug 14 is fixedly arranged at the bottom of the fixing rod 11, the plug 14 is provided with a tip part 141 which can be inserted into the ground for fixing, a baffle ring 142 which is abutted against the bottom of the fixing rod 11 and a plug fixing part 143 which is inserted into the inner cavity of the fixing rod 11 for positioning, and the shape of the plug fixing part 143 is matched with the shape of the inner cavity of the fixing rod 11. The plug fixing portion 143 is provided at a circumferential side thereof with a screw hole, and the fixing rod 11 is provided with a hole corresponding to the screw hole, and the screw 115 is threaded through the hole of the fixing rod 11. The tip part 141 of the plug is inserted into the ground or soil layer for fixing, the bottom of the fixing rod 11 abuts against the baffle ring 142 of the plug 14 for positioning, the plug fixing part 143 is inserted into the inner cavity of the fixing rod 11, and the fixing rod and the plug are locked by the set screw 115, so that the arrangement of the upright post on the ground is facilitated.

As shown in fig. 13a to 13i, when the guard rail is assembled by using the first column 1, the second column 2, and the tie bar 3, the first fixing end 311 and the second fixing end 321 of the tie bar 3 are fixed to the fixing lugs of the columns by the mounting bolts 4, respectively, and when a plurality of tie bars are fixed to the same fixing lug, the mounting bolt 4 having a shorter length can be selected for fixing.

With regard to material selection, each part of this application can adopt metal material, like aluminum alloy, structural steel, also can select for use engineering plastics, can both satisfy the plant protection demand generally.

During the guardrail equipment of this application, at first according to the height of plant, the height and the length of guardrail are confirmed to the scope, the width, flexible adjustment first stand 1, second stand 2 is to suitable height, and confirm first stand 1, suitable interval between the second stand 2, subaerial fixed first stand 1, second stand 2, bolt 33 that will adjust the pull rod and stretch out and draw back is unscrewed, make branch 31 and the convenient flexible regulation of telescopic link 32, and set up the level as required, slope or alternately pull rod, first stiff end 311 with the pull rod, second stiff end 321 passes through assembly bolt with the corresponding fixed ear of stand respectively and fixes, then tighten bolt 33 with the pull rod fastening again, can realize the assembly of guardrail. The assembled guardrail is provided with a shielding object as required, so that the plant protection effect can be achieved.

As can be seen from the above description, the present application can be assembled into a plant protection guardrail by using the telescopic columns of the first column 1 and the second column 2, the telescopic pull rods 3 of two similar structures, and the assembling bolts 4 of two specifications (the difference is mainly different in length, and a bolt with a slightly longer length can also be selected). This guardrail equipment, dismantlement are convenient, are convenient for accomodate and store, can use many times, many years, adapt to the plant protection demand of multiple variation in size plant, have practiced thrift resources such as timber greatly, have saved the manpower, have reduced the cost that the guardrail set up.

Claims

1. The utility model provides an adjustable guardrail is used in plant protection, includes a plurality of stands and a plurality of pull rod, is connected through the pull rod between the adjacent stand, its characterized in that, the stand is height-adjustable stand, the stand has a plurality of first stands (1) of setting at the guardrail middle part, sets up second stand (2) at the guardrail both ends, and first stand (1) and second stand (2) all are provided with fixed ear, between adjacent first stand (1), between first stand (1) and adjacent second stand (2) part or all set up pull rod (3), and the pull rod is fixed on fixed ear.

2. The guardrail according to claim 1, wherein the first and second uprights each comprise a tubular fixing rod (11), a telescopic rod (12) is telescopically arranged in an inner cavity of the fixing rod (11), a fastening assembly is arranged between the fixing rod (11) and the telescopic rod (12), and the fixing lugs comprise a first fixing lug (111) and a second fixing lug (121) which are respectively arranged on the fixing rod (11) and the telescopic rod (12) so as to support the uprights.

3. The guardrail according to claim 2, characterized in that the fixing rod (11) is provided with a long groove (113), the telescopic rod (12) is provided with a positioning hole (123), the long groove (113) corresponds to the positioning hole (123), the fastening component is a bolt (114) which is arranged between the fixing rod (11) and the telescopic rod (12), and the bolt (114) penetrates into the positioning hole (123) and can be slidably arranged in the long groove (113) to lock and position the fixing rod and the telescopic rod.

4. A guardrail according to any of claims 1-3, characterized in that the tie rods (3) are telescopic tie rods, and the tie rods arranged between adjacent first uprights, between a first upright and an adjacent second upright are tie rods, diagonal tie rods or cross tie rods;

the pull rod (3) comprises a support rod (31) and a telescopic rod (32), the support rod (31) is provided with a C-shaped groove, the telescopic rod (32) is movably and telescopically arranged in the C-shaped groove of the support rod (31), and a fixing assembly is arranged between the support rod (31) and the telescopic rod (32);

the end of the pull rod (3) is provided with a fixed end connected with the fixed lug of the upright column, the fixed end comprises a first fixed end (311) and a second fixed end (321), one end of the support rod (31) far away from the telescopic rod (32) is provided with the first fixed end (311), and one end of the telescopic rod (32) far away from the support rod (31) is provided with the second fixed end (321).

5. The guardrail according to claim 4, characterized in that a first long groove (312) is arranged at the back of the C-shaped groove of the support rod (31), a second long groove (322) is arranged corresponding to the first long groove (312) after the telescopic rod (32) is inserted into the C-shaped groove, the fixing component is a bolt (33), the bolt (33) is arranged at the overlapping position of the first long groove (312) and the second long groove (322), and the support rod (31) and the telescopic rod (32) are fixedly positioned.

6. The guardrail according to claim 2 or 3, wherein the first upright post (1) and the second upright post (2) further comprise a first fixing hook (112) and a second fixing hook (122) which are respectively arranged at the bottom of the fixing rod (11) and the top of the telescopic rod (12), and after the first upright post (1) and the second upright post (2) are connected through the pull rod (3) to form the guardrail, the first fixing hook (112) and the second fixing hook (122) are positioned outside an area surrounded by the guardrail.

7. The guardrail of claim 5, characterized in that the C-shaped groove of the post (31) is provided with a fixing pad (331) in the opening, and the bolt (33) passes through the fixing pad (331) to tightly connect the telescopic rod (32) and the post (31).

8. The guardrail according to any of the claims 1-3, characterized in that the first and second uprights further comprise a top cap (13) arranged on top of the telescopic bar (12);

the plug (14) is fixedly arranged at the bottom of the fixing rod (11), the plug (14) is provided with a tip part (141) which can be inserted into the ground to be fixed, a baffle ring (142) which is abutted against the bottom of the fixing rod (11) and a plug fixing part (143) which is inserted into an inner cavity of the fixing rod (11) to be positioned, a screw hole is formed in the circumferential side surface of the plug fixing part (143), a hole corresponding to the position of the screw hole is formed in the fixing rod (11), and a screw (115) penetrates through the hole in the fixing rod (11) and is in threaded connection with the screw hole.

9. The guardrail of claim 4, characterized in that the second fixed end (321) of the tension rod (3) is a bent end relative to the body of the telescopic rod (32), the second fixed end (321) corresponding to the first fixed end (311) when the telescopic rod (32) is inserted into the C-shaped groove of the post (31).

10. The guardrail according to claim 9, characterized in that the first (311) and second (321) fixing ends of the tie-rods (3) are provided with fixing holes, and the first (111) and second (131) fixing ears have holes corresponding to the fixing holes.