CN212358911U - Glass armrest - Google Patents

Abstract

The utility model discloses a glass handrail, which comprises a plurality of vertical stiles arranged at intervals, a handrail body connected with the upper ends of the vertical stiles, a lower transverse frame horizontally arranged between every two adjacent vertical stiles, an upper transverse frame horizontally arranged between every two adjacent vertical stiles, and a glass baffle plate arranged between every two adjacent vertical stiles, the upper end of the glass baffle plate is connected with the upper transverse frame, the lower end of the glass baffle plate is connected with the lower transverse frame, the handrail body comprises a surface cover and a sealing cover clamped with the lower end of the surface cover, the surface cover is in a lower frame shape and is provided with a top panel, a first side plate and a second side plate, the first side plate and the second side plate are formed by downwards extending from the two opposite sides of the top panel, the lower end of the inner side surface of the first side plate is provided with a first convex tip protruding towards the direction of the second side plate, the position above the first convex tip on the inner side surface of the first side plate horizontally extends towards the direction of the second side plate to form, a first clamping groove is formed between the first convex tip and the first transverse strip.

Description

Glass armrest

Technical Field

The utility model relates to a glass handrail.

Background

The glass handrail is widely applied to places such as indoor and outdoor stairs and various field edge positions due to permeability and attractiveness. The glass handrail generally comprises a plurality of vertical stiles arranged at intervals, a handrail body connected with the upper ends of the vertical stiles, a lower transverse frame horizontally arranged between every two adjacent vertical stiles, an upper transverse frame horizontally arranged between every two adjacent vertical stiles, and glass breast boards and the like, wherein the upper ends of the glass breast boards are connected with the upper transverse frame, and the lower ends of the glass breast boards are connected with the lower transverse frame. The handrail body of current glass handrail generally adopts integrated into one piece structure, when with erecting the installation of club, comparatively wastes time and energy. In addition, the stile of current glass handrail mostly all adopts solid post or hollow tube structure, and horizontal frame adopts the spiro union mode to connect on the stile usually, causes the junction of stile and horizontal frame to expose, influences the uniformity of stile, has reduced user's use simultaneously and has experienced the sense.

SUMMERY OF THE UTILITY MODEL

To the not enough of above-mentioned prior art, the utility model aims to solve the technical problem that: the glass handrail is convenient to mount the handrail body and simple in structure.

In order to solve the technical problem, the utility model discloses a technical scheme be: the glass handrail comprises a plurality of vertical stiles arranged at intervals, a handrail body connected with the upper ends of the vertical stiles, a lower transverse frame horizontally arranged between every two adjacent vertical stiles, an upper transverse frame horizontally arranged between every two adjacent vertical stiles, and a glass baffle plate arranged between every two adjacent vertical stiles, the upper end of the glass baffle plate is connected with the upper transverse frame, the lower end of the glass baffle plate is connected with the lower transverse frame, the handrail body comprises a face cover and a sealing cover clamped with the lower end of the face cover, the face cover is in a lower frame shape and is provided with a top panel, a first side plate and a second side plate, the first side plate and the second side plate are formed by downwards extending the two opposite sides of the top panel, the lower end of the inner side surface of the first side plate is provided with a first convex tip protruding towards the direction of the second side plate, and a first transverse strip horizontally extends out towards the direction of the second side plate from the position above the first convex tip on the inner side surface of the first side plate, a first clamping groove is formed between the first convex tip and the first transverse strip, a second convex tip which is symmetrical to the first convex tip is arranged at the lower end of the inner side surface of the second side plate, a second transverse strip which is symmetrical to the first transverse strip is arranged at the position, above the second convex tip, on the inner side surface of the first side surface, and a second clamping groove is formed between the second convex tip and the second transverse strip; the sealing cover comprises a horizontal sealing plate, a first clamping plate vertically arranged on the first side of the sealing plate and a second clamping plate vertically arranged on the second side of the sealing plate, a third convex tip is arranged at a position, corresponding to the first clamping groove, on the outer side surface of the top end of the first clamping plate, a third clamping groove is arranged at a position, corresponding to the first convex tip, on the outer side surface of the lower end of the first clamping plate, a fourth convex tip is arranged at a position, corresponding to the second clamping groove, on the outer side surface of the upper end of the second clamping plate, and a fourth clamping groove is arranged at a position, corresponding to the second convex tip, on the outer side surface of the lower end of the second clamping plate.

Further, the width of the sealing plate is matched with the linear distance from the outer side face of the first side plate to the outer side face of the second side plate;

the first clamping plate is vertically arranged on the upper surface of the sealing plate and corresponds to the inner side of the first side plate, the height of the first clamping plate is matched with the distance between the bottom end surface of the first side plate and the first transverse bar, the third convex tip is formed by outwards protruding the outer side surface of the upper end of the first clamping plate, a third transverse bar is formed by the part of the sealing plate, which exceeds the first clamping plate, the height of the third transverse bar is matched with the distance between the bottom of the first convex tip and the bottom end surface of the first side plate, and a third clamping groove is formed between the third transverse bar and the third convex tip for the first convex tip to be clamped in;

the second cardboard sets up in be corresponding to on the upper surface of shrouding the inboard position of second curb plate, the height of second cardboard with the bottom face of second curb plate extremely the distance phase-match between the second horizontal bar, the fourth nib by the lateral surface of the upper end of second cardboard is outwards protruding to establish and is formed, the shrouding surpasss the part of second cardboard forms a fourth horizontal bar, the height of fourth horizontal bar with the bottom of the second nib extremely the distance phase-match of the bottom face of second curb plate, the fourth horizontal bar with form between the fourth nib the fourth draw-in groove is in order to supply the second nib card is gone into.

The utility model discloses a glass handrail, handrail adopt split type face lid and closing cap looks joint, simple to operate is swift, and the combination is nimble changeable.

Drawings

Fig. 1 is a schematic structural view of an embodiment of the glass armrest of the present invention.

Fig. 2 is a schematic structural view of the armrest body in fig. 1.

Fig. 3 is a schematic structural view of the front cover of fig. 2.

Fig. 4 is a schematic view of the closure of fig. 2.

Fig. 5 is a cross-sectional view a-a of fig. 1.

Fig. 6 is a cross-sectional view of B-B in fig. 1.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 6, the glass armrest of the present embodiment includes a plurality of stiles 1 spaced apart from each other, an armrest body 2 connected to the upper ends of the stiles 1, a lower horizontal frame 3 horizontally disposed between each two adjacent stiles 1, an upper horizontal frame 4 horizontally disposed between each two adjacent stiles 1, and a glass balustrade 5 disposed between each two adjacent stiles 1, the upper end of the glass balustrade being connected to the upper horizontal frame 4, and the lower end of the glass balustrade being connected to the lower horizontal frame 3.

With respect to the armrest body 2:

the armrest body 2 comprises a surface cover 21 and a cover 22 clamped with the lower end of the surface cover 21, the surface cover 21 is in a lower frame shape and has a top panel 211, and a first side plate 212 and a second side plate 213 formed by downward extending from two opposite sides of the top panel 211, the lower end of the inner side surface of the first side plate 212 has a first protruding tip 214 protruding toward the second side plate 213, a first cross bar 215 horizontally extends from the position above the first protruding tip 214 on the inner side surface of the first side plate 212 toward the second side plate 213, a first clamping groove 216 is formed between the first protruding tip 214 and the first cross bar 215, the lower end of the inner side surface of the second side plate 213 has a second protruding tip 217 symmetrically arranged with the first protruding tip 214, and a second cross bar 218 symmetrically arranged with the first cross bar 215 is arranged at the position above the second protruding tip 217 on the inner side surface of the first side surface, a second slot 219 is formed between the second protrusion 217 and the second bar 218. The sealing cover 22 includes a horizontal sealing plate 221, a first clamping plate 222 vertically disposed on a first side of the sealing plate 221, and a second clamping plate 223 vertically disposed on a second side of the sealing plate 221, a third protrusion 224 is disposed on an outer side surface of a top end of the first clamping plate 222 at a position corresponding to the first clamping groove 216, a third clamping groove 225 is disposed on an outer side surface of a lower end of the first clamping plate 222 at a position corresponding to the first protrusion 214, a fourth protrusion 226 is disposed on an outer side surface of an upper end of the second clamping plate 223 at a position corresponding to the second clamping groove 219, and a fourth clamping groove 227 is disposed on an outer side surface of a lower end of the second clamping plate 223 at a position corresponding to the second protrusion 217.

In this embodiment, the width of the sealing plate 221 matches the linear distance from the outer side surface of the first side plate 212 to the outer side surface of the second side plate 213; the first locking plate 222 is vertically arranged on the upper surface of the closing plate 221 at a position corresponding to the inner side of the first side plate 212, the height of the first locking plate 222 is matched with the distance between the bottom end surface of the first side plate 212 and the first cross bar 215, so that after the first locking plate 222 is locked on the first side plate 212, the upper end of the first locking plate 222 is abutted against the first cross bar 215, the third protrusion tip 224 is formed by outwardly protruding the outer side surface of the upper end of the first locking plate 222, a third cross bar 228 is formed at a part of the closing plate 221, which exceeds the first locking plate 222, the height of the third cross bar 228 is matched with the distance between the bottom of the first protrusion tip 214 and the bottom end surface of the first side plate 212, and the third locking groove 225 is formed between the third cross bar 228 and the third protrusion tip 224 for the first protrusion tip 214 to be locked; the second locking plate 223 is vertically disposed on the upper surface of the sealing plate 221 at a position corresponding to the inner side of the second side plate 213, the height of the second locking plate 223 matches with the distance from the bottom end surface of the second side plate 213 to the second cross bar 218, so that after the second locking plate 223 is locked on the second side plate 213, the upper end of the second locking plate 223 abuts against the first cross bar 215, the fourth protrusion 226 is formed by outwardly protruding the outer side surface of the upper end of the second locking plate 223, a portion of the sealing plate 221, which exceeds the second locking plate 223, forms a fourth cross bar 229, the height of the fourth cross bar 229 matches with the distance from the bottom of the second protrusion 217 to the bottom end surface of the second side plate 213, and the fourth locking groove 227 is formed between the fourth cross bar 229 and the fourth protrusion 226 for the second protrusion 217 to be locked.

Handrail body 2 with erect 1 accessible bolted connection of club, promptly on the shrouding 221 be corresponding to erect 1 position department of club and set up a plurality of perforation erect 1 position department and be provided with a plurality of screw lock holes corresponding to the fenestrate position department that corresponds on the position of club, install during handrail body 2, adopt the passing of a plurality of bolts one-to-one can with after the perforation screw lock hole halving. When the surface cover 21 is installed, the surface cover 21 is directly aligned with the sealing cover 22, and the surface cover and the sealing cover 22 are clamped downwards to complete installation of the whole handrail body 2, so that the first convex tip 214 is clamped into the third clamping groove 225, the second convex tip 217 is clamped into the fourth clamping groove 227, the third convex tip 224 on the sealing cover 22 is clamped into the first clamping groove 216, and the fourth convex tip 226 is clamped into the second clamping groove 219. Because the height of cardboard is unanimous with the lower terminal surface to the horizontal bar position of curb plate, after the joint, the up end of cardboard just in time pushes up to the lower surface of horizontal bar, first prong 214 is located third draw-in groove 225, third prong 224 is located first draw-in groove 216, second prong 217 is located fourth draw-in groove 227, fourth prong 226 is located second draw-in groove 219, and the height of shrouding 221 with the curb plate is unanimous to the distance of the lower limb of the prong above that, makes like this the shrouding 221 with the degree of agreeing with of curb plate is higher, does not leave the gap, and uniformity, wholeness are better, and the structure is compacter, makes the product more perfect, more can improve people's satisfaction and experience.

Regarding the upper horizontal frame 4 and the lower horizontal frame 3:

the upper horizontal frame 4 includes a top wall 41, a first outer sidewall 42 formed by a first side edge of the top wall 41 extending vertically downward, a second outer sidewall 43 formed by a second side edge of the top wall 41 extending vertically downward, a first inner sidewall 44 connected to a bottom surface of the top wall 41 and located in parallel in the first outer sidewall 42, a second inner sidewall 45 connected to a bottom surface of the top wall 41 and located in parallel in the second outer sidewall 43, a first bottom plate 46 horizontally connected to upper ends of the first inner sidewall 44 and the second inner sidewall 45, a second bottom plate 47 horizontally connected to lower end surfaces of the first outer sidewall 42 and the first inner sidewall 44, and a third bottom plate 48 horizontally connected to lower end surfaces of the second outer sidewall 43 and the second inner sidewall 45. An upper embedding groove 401 for embedding the upper end of the glass baffle 5 is formed at one section of the first bottom plate 46 and the first inner side wall 44 which is positioned below the first bottom plate 46, at one end of the second inner side wall 45 which is positioned below the first bottom plate 46, a first outer side frame 402 for resisting the glass baffle 5 is formed by enclosing a section of the first outer side wall 42, the first inner side wall 44 and the top wall 41 which is corresponding to the section between the first outer side wall 42 and the first inner side wall 44 and the second bottom plate 47, and a second outer side frame 403 for resisting the glass baffle 5 is formed by enclosing a section of the second outer side wall 43, the second inner side wall 45 and the top wall 41 which is corresponding to the section between the second outer side wall 43 and the second inner side wall 45 and the third bottom plate 48.

Preferably, a plurality of first barrier ribs 404 protruding toward the second inner side wall 45 are vertically arranged on the first inner side wall 44 at intervals, and a plurality of second barrier ribs 405 are correspondingly arranged on the second inner side wall 45 at positions corresponding to the first barrier ribs 404. First blend stop 404 and second blend stop 405 and the inside wall that corresponds between form glass and glue the storage area, set up like this, can prevent that glass glues because of directly penetrating the sun and drop, even if receive high temperature melting and also can block glass and glue, strengthen and beat gluey effect, prevent that glass breast board 5 is not hard up.

The lower horizontal frame 3 includes a bottom wall 51, a third outer sidewall 52 formed by a first side edge of the bottom wall 51 extending vertically upward, a fourth outer sidewall 53 formed by a second side edge of the bottom wall 51 extending vertically upward, a third inner sidewall 54 connected to a top surface of the bottom wall 51 and located in parallel with the third outer sidewall 52, a fourth inner sidewall 55 connected to a top surface of the bottom wall 51 and located in parallel with the fourth outer sidewall 53, a first top plate 56 horizontally connected to lower ends of the third inner sidewall 54 and the fourth inner sidewall 55, a second top plate 57 horizontally connected to upper end surfaces of the third outer sidewall 52 and the third inner sidewall 54, and a third top plate 58 horizontally connected to lower end surfaces of the fourth outer sidewall 53 and the fourth inner sidewall 55. A lower embedding groove 501 for embedding the lower end of the glass baffle 5 is formed at one section of the first top plate 56 on the first top plate 56 and the third inner side wall 54 on the first top plate 56, at one end of the fourth inner side wall 55 on the first top plate 56, a third outer side frame 502 for resisting the glass baffle 5 is formed by enclosing between one section of the third outer side wall 52, the third inner side wall 54 and the bottom wall 51 corresponding to the section between the third outer side wall 52 and the third inner side wall 54 and the second top plate 57, and a fourth outer side frame 503 for resisting the glass baffle 5 is formed by enclosing between one section of the fourth outer side wall 53, the fourth inner side wall 55 and the bottom wall 51 corresponding to the section between the fourth outer side wall 53 and the fourth inner side wall 55 and the third top plate 58.

Preferably, a plurality of third barrier strips 503 protruding toward the fourth inner side wall 55 are vertically arranged on the third inner side wall 54 at intervals, and a plurality of fourth barrier strips 504 are correspondingly arranged on the fourth inner side wall 55 at positions corresponding to the third barrier strips 503. The third barrier strip 503 and the fourth barrier strip 504 form a glass cement storage area with the corresponding inner side wall, so that the glass cement can be prevented from falling off due to direct irradiation of the sun, the glass cement can be clamped even if the glass cement is melted at high temperature, the cement hitting effect is enhanced, and the looseness of the glass baffle 5 is prevented.

With respect to stile 1:

the mullion 1 includes a mullion body with an I-shaped cross section, a first buckle cover 13 and a second buckle cover 14. The first side of the mullion 1 is provided with a first slot 11 which is recessed towards the opposite second side direction and is used for inserting the upper transverse frame 4 and the lower transverse frame 3 of the corresponding side, the second side of the mullion 1 is provided with a second slot 12 which is recessed towards the first side direction and is used for inserting the upper transverse frame 4 and the lower transverse frame 3 of the corresponding side, and the first slot 11 and the second slot 12 are symmetrical to each other. The first slot 11 has a first slot bottom, a first slot wall and a second slot wall, a first clamping strip 111 is convexly arranged at one end of the first slot wall close to the slot opening to the direction of the second slot wall, a second clamping strip 112 is convexly arranged at one end of the first slot wall close to the first slot bottom to the direction of the second slot wall, a third clamping strip 113 is arranged at a position on the second slot wall corresponding to the first clamping strip 111, and a fourth clamping strip 114 is arranged at a position on the second slot wall corresponding to the second clamping strip 112.

The second slot 12 has a second slot bottom, a third slot wall and a fourth slot wall, a fifth clamping strip 121 is convexly disposed at one end of the third slot wall close to the slot opening in the direction of the fourth slot wall, a sixth clamping strip 122 is convexly disposed at one end of the third slot wall close to the second slot bottom in the direction of the fourth slot wall, a seventh clamping strip 123 is disposed at a position on the fourth slot wall corresponding to the fifth clamping strip 121, and an eighth clamping strip 124 is disposed at a position on the fourth slot wall corresponding to the sixth clamping strip 122.

The first buckle cover 13 includes a first buckle plate 131 sealed at the notch of the first slot 11, a first buckle wall 132 disposed at a position corresponding to the first slot wall on the first buckle plate 131, and a second buckle wall 133 disposed at a position corresponding to the second slot wall on the first buckle plate 131. The distance between the wall surface of the first slot wall 132 adjacent to the first slot wall and the corresponding end of the first buckle plate 131 is matched with the protrusion of the first clamping strip 111, and the distance between the wall surface of the first buckle wall 132 adjacent to the second slot wall and the corresponding end of the first buckle plate 131 is matched with the protrusion of the third clamping strip 113, so that when the first buckle cover 13 is buckled in the first slot 11, the first clamping strip 111 and the second clamping strip 112 can block the first buckle plate 131 from moving inwards continuously.

The first buckle wall 132 and the second buckle wall 133 have the same structure, a first buckle 1321 for buckling the second card strip 112 is disposed at a position corresponding to the second card strip 112 at the inner end of the first buckle wall 132, and a second buckle 1331 for buckling the fourth card strip 114 is disposed at a position corresponding to the fourth card strip 114 at the inner end of the second buckle wall 133. The thickness of the first buckle plate 131 is matched (consistent) with the distance from the first clamping strip 111 to the notch surface of the first slot 11, so that when the first buckle cover 13 is buckled in the first slot 11, the first buckle plate 131 and the first side surface of the vertical stile 1 are located on the same plane. When the first buckle cover 13 is buckled into the first slot 11, the first buckle 1321 and the second buckle 1331 are buckled with the second buckle strip 112 and the fourth buckle strip 114 respectively to prevent the buckle cover from moving to the outer end, and the first buckle strip 111 and the second buckle strip 112 resist the inward movement of the first buckle plate 131 to prevent the buckle plate from moving from the inner end and the outer end.

The second buckle cover 14 includes a second buckle plate 141 sealed at the notch of the second slot 12, a third buckle wall 142 disposed at a position corresponding to the third slot wall on the second buckle plate 141, and a fourth buckle wall 143 disposed at a position corresponding to the fourth slot wall on the second buckle plate 141. The distance between the wall surface of the third slot wall 142 adjacent to the third slot wall and the corresponding end of the second fastening plate 141 matches with the protrusion of the fifth locking strip 121, and the distance between the wall surface of the third slot wall 142 adjacent to the fourth slot wall and the corresponding end of the second fastening plate 141 matches with the seventh locking strip 123, so that when the second cover 14 is fastened in the second slot 12, the fifth locking strip 121 can block the second fastening plate 141 from moving further inwards.

The third buckling wall 142 and the fourth buckling wall 143 have the same structure, a third buckle 1421 for buckling the sixth clip strip 122 is disposed at a position corresponding to the sixth clip strip 122 at the inner end of the third buckling wall 142, and a fourth buckle 1431 for buckling the eighth clip strip 124 is disposed at a position corresponding to the eighth clip strip 124 at the inner end of the fourth buckling wall 143. The thickness of the second buckle plate 141 matches (is consistent with) the distance from the fifth clamping strip 121 to the notch surface of the second slot 12, so that when the second buckle cover 14 is buckled in the second slot 12, the second buckle plate 141 and the second side surface of the stile 1 are located on the same plane. When the second cover 14 is locked into the second slot 12, the third hook 1421 and the fourth hook 1431 are respectively locked with the sixth strip 122 and the eighth strip 124 to prevent the cover from moving to the outside, and the fifth strip 121 and the sixth strip 122 block the second buckle 141 from moving inwards to prevent the buckle from moving from the inside and the outside.

A first through hole (not shown) for the corresponding upper horizontal frame 4 to pass through is opened at a position corresponding to the corresponding upper horizontal frame 4 on the first buckle cover 13 and the second buckle cover 14, and a second through hole (not shown) for the corresponding lower horizontal frame 3 to pass through is opened at a position corresponding to the corresponding lower horizontal frame 3 on the first buckle cover 13 and the second buckle cover 14. Like this, utilize last horizontal frame 4 and horizontal frame 3 can prevent down the buckle closure reciprocates, and simultaneously, the buckle closure sheltered from last horizontal frame 4 and horizontal frame 3 and the threaded connection part of erectting the club down, can prevent that screw hole, threaded connection department from exposing, has solved the trompil and has exposed not pleasing to the eye problem to and the rust scheduling problem that outdoor exposure to the sun drenches and leads to, make handrail uniformity, an organic whole nature better.

The utility model discloses a glass handrail, handrail adopt split type face lid 21 and closing cap 22 looks joint, simple to operate is swift, and the combination is nimble changeable. Erect club 1 and compare with traditional rectangular tube structure, the both sides of being connected with horizontal frame respectively with buckle closure looks lock, shield and protect the part of being connected with horizontal frame, make it not expose, can increase of service life and play the effect of beautifying, improve people's use and feel with experience.

The above is only the embodiment of the present invention, not the limitation of the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.

Claims (2)

1. The utility model provides a glass handrail, including a plurality of perpendicular stiles that set up each other at an interval, with handrail body, the level that the upper end of erecting the stile is connected locate per two adjacent perpendicular stiles between lower horizontal frame, level locate per two adjacent perpendicular stiles between last horizontal frame and locate between every two adjacent perpendicular stiles and the upper end with go up the glass breast board that horizontal frame is connected, the lower extreme with its characterized in that is down: the handrail body comprises a surface cover and a sealing cover clamped with the lower end of the surface cover, the surface cover is in a lower frame shape and is provided with a top panel and a first side plate and a second side plate which are formed by downwards extending two opposite sides of the top panel, the lower end of the inner side surface of the first side plate is provided with a first convex tip which is convex towards the direction of the second side plate, a first transverse bar horizontally extends from the position above the first convex tip on the inner side surface of the first side plate to the direction of the second side plate, a first clamping groove is formed between the first convex tip and the first transverse strip, a second convex tip which is symmetrical to the first convex tip is arranged at the lower end of the inner side surface of the second side plate, a second transverse bar symmetrical to the first transverse bar is arranged at a position above the second convex tip on the inner side surface of the first side surface, and a second clamping groove is formed between the second convex tip and the second transverse bar; the sealing cover comprises a horizontal sealing plate, a first clamping plate vertically arranged on the first side of the sealing plate and a second clamping plate vertically arranged on the second side of the sealing plate, a third convex tip is arranged at a position, corresponding to the first clamping groove, on the outer side surface of the top end of the first clamping plate, a third clamping groove is arranged at a position, corresponding to the first convex tip, on the outer side surface of the lower end of the first clamping plate, a fourth convex tip is arranged at a position, corresponding to the second clamping groove, on the outer side surface of the upper end of the second clamping plate, and a fourth clamping groove is arranged at a position, corresponding to the second convex tip, on the outer side surface of the lower end of the second clamping plate.

2. The glass handrail of claim 1, wherein: the width of the sealing plate is matched with the linear distance from the outer side face of the first side plate to the outer side face of the second side plate;

the first clamping plate is vertically arranged on the upper surface of the sealing plate and corresponds to the inner side of the first side plate, the height of the first clamping plate is matched with the distance between the bottom end surface of the first side plate and the first transverse bar, the third convex tip is formed by outwards protruding the outer side surface of the upper end of the first clamping plate, a third transverse bar is formed by the part of the sealing plate, which exceeds the first clamping plate, the height of the third transverse bar is matched with the distance between the bottom of the first convex tip and the bottom end surface of the first side plate, and a third clamping groove is formed between the third transverse bar and the third convex tip for the first convex tip to be clamped in;

the second cardboard sets up in be corresponding to on the upper surface of shrouding the inboard position of second curb plate, the height of second cardboard with the bottom face of second curb plate extremely the distance phase-match between the second horizontal bar, the fourth nib by the lateral surface of the upper end of second cardboard is outwards protruding to establish and is formed, the shrouding surpasss the part of second cardboard forms a fourth horizontal bar, the height of fourth horizontal bar with the bottom of the second nib extremely the distance phase-match of the bottom face of second curb plate, the fourth horizontal bar with form between the fourth nib the fourth draw-in groove is in order to supply the second nib card is gone into.

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