CN212249720U - Door leaf edge covering structure - Google Patents

Abstract

The utility model discloses a door leaf bordure structure aims at solving the problem that the bordure strip is difficult to be changed. The key points of the technical scheme are as follows: the utility model provides a door leaf structure of borduring, including the door plant main part and the main part of borduring, the outdoor face and the indoor face of door plant main part are fixed with outer panel and interior panel respectively, the lateral margin integrated into one piece of interior panel has the excess part that surpasss the door plant main part, the main part of borduring includes that Z shape is bordured and U-shaped bordures, Z shape is bordured including first bordure, the second is bordured and is bordured with the third, first bordure, the second is bordured respectively through first bolt and second bolt can dismantle the connection, the interference fit that third bordure passed through picture peg and clearance realizes dismantling the connection, the U-shaped is bordured including first vertical bar, second vertical bar and horizontal bar, the U-shaped. The utility model discloses a main part of borduring is stable with being connected between door plant main part, outer panel and the interior panel, and the main part of borduring can dismantle very conveniently, is convenient for borduring the change of main part.

Description

Door leaf edge covering structure

Technical Field

The utility model relates to a door leaf technical field, more specifically say, it relates to a door leaf bordure structure.

Background

The edge of the door is a frame body wrapped around the door leaf, so that the appearance of the door looks very beautiful, the door plate can be prevented from being directly contacted with the wall surface and the ground, and the door is prevented from being rotten due to moisture. The edge of the existing product is connected with the door leaf in a pin-hole insertion matching mode or a screw fixing mode, and the fixing structures are easy to wear at an accelerated speed or increase the matching tolerance after being impacted and vibrated by long-term frequent opening and closing of the door leaf, so that the edge is loosened.

For example, the utility model discloses a utility model with publication number CN202970337U discloses a nonrust ladle border door, include the door leaf and set up at door leaf frame all around with the form of parcel, the frame includes horizontal frame and connects in the munnion at horizontal frame both ends, the both ends of horizontal frame all fall 45 degrees angles with the upper end of munnion and form horizontal frame and the munnion and be the right angled structure after being connected, horizontal frame both ends are all followed horizontal frame length direction and are fixed the positioning connection pole that is provided with, the munnion upper end is provided with and is used for positioning connection pole male locating hole. Compared with the traditional wooden frame, the stainless steel material has high strength, is not easy to deform, cannot rust, and is waterproof and moistureproof; and this nonrust ladle edge door can carry and transport after horizontal frame and mullion split, owing to contain location connection structure, can carry out fast assembly again on the scene, has avoided the inconvenience that transport and transportation produced after the welding assembly is accomplished. Nevertheless in this utility model bordure and realize installing through location connecting rod and locating hole complex mode, as above, probably cause after long-term the use to bordure not hard up.

Therefore, chinese patent with publication number CN208310605U discloses a door leaf is bordured, locate on the door leaf, the door leaf includes the door plant main part, outer panel and interior panel are fixed respectively at the outdoor face and the indoor face of door plant main part, the lateral margin of interior panel surpasses door plant main part lateral margin, this door leaf is bordured and is included Z shape envelope strip and U-shaped envelope strip, Z shape envelope strip bonds on outer panel, door plant main part and interior panel surpass the part, U-shaped envelope strip joint and cementation are on the interior panel surpasses the part. The utility model discloses a well Z shape edging and U-shaped edging and door leaf border angle position form the large tracts of land and bond, and fixed load face is bigger, and the atress distributes more evenly, even frequently receive the impact shock for a long time also difficult not hard up, connects more reliably, uses more durably, and simple structure, easy to carry out. However, the technical effect of the utility model needs to use the adhesive with stronger adhesive force, and under the condition, the Z-shaped edge covering strip and the U-shaped edge covering strip are difficult to replace once damaged.

The utility model discloses in provide a new technical scheme and solve the problem that the bound strake is difficult to be changed.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model aims to provide a door leaf structure of borduring solves the problem that the edging strip is difficult to change.

The purpose of the utility model is realized by adopting the following technical scheme:

a door leaf edge covering structure comprises a door panel main body and an edge covering main body, wherein an outer panel and an inner panel are respectively fixed on the outdoor surface and the indoor surface of the door panel main body, an excess part exceeding the door panel main body is integrally formed on the lateral edge of the inner panel, the edge covering main body comprises a Z-shaped edge covering and a U-shaped edge covering, the Z-shaped edge covering comprises a first edge covering, a second edge covering and a third edge covering, a first threaded through hole is formed in the first edge covering, a first threaded blind hole corresponding to the first threaded through hole is formed in the excess part, a first bolt is arranged between the first threaded through hole and the first threaded blind hole in a penetrating mode, a plurality of second threaded through holes are formed in the second edge covering, a plurality of second threaded blind holes corresponding to the second threaded through holes are formed in the door panel main body, and a second bolt is arranged between the second threaded through holes and the second threaded blind holes in a penetrating mode, a first bending edge is fixed at one end of the third edge covering far away from the second edge covering, a gap is reserved between the first bending edge and the third edge covering, an inserting plate for inserting the gap is arranged on the outer panel, the U-shaped edge covering is sleeved outside the exceeding part and the first edge covering, the U-shaped edge covering comprises a first vertical bar, a second vertical bar and a transverse bar, the first vertical bar and the second vertical bar are respectively fixed at two ends of the transverse bar, a third threaded through hole corresponding to the position of the first threaded through hole is arranged on the first vertical bar, the first bolt penetrates through the third threaded through hole, a second bending edge is arranged at one end of the second vertical bar far away from the transverse bar, grooves are respectively arranged at two sides of the exceeding part, a clamping block with a right trapezoid cross section shape is arranged in each groove, the inclined plane of the clamping block faces towards the opening of the U-shaped edge covering, and a plurality of springs are connected between the clamping block and the groove bottom of each groove, and the first vertical bar and the second vertical bar are both provided with holes corresponding to the positions of the clamping blocks.

By adopting the technical scheme, the first bolt penetrates through the third threaded through hole, the first threaded through hole and the first threaded blind hole, so that the first wrapping edge is fixed on the excess part and faces to one end face of the door panel main body, the connection between the first wrapping edge and the excess part is stable, and the installation and the disassembly are convenient; the second bolt penetrates through the second threaded through hole and the second threaded blind hole, so that the second wrapping edge is fixed on the door panel main body, the connection between the second wrapping edge and the door panel main body is stable, and the installation and the disassembly are convenient; the gap between the first bending edge and the third wrapping edge is aligned with the inserting plate, and the inserting plate is inserted into the gap, so that the third wrapping edge is fixed on the outer panel, the connection between the third wrapping edge and the outer panel is stable, and the installation and the disassembly are convenient; the U-shaped edge is sleeved outside the excess part and the first edge, on one hand, a first vertical strip of the U-shaped edge is fixed on the first edge and the excess part through a third threaded through hole and a first bolt, on the other hand, a second bending edge bending towards the inside of the U-shaped edge and the first edge in the U-shaped edge both play a role of clamping and fixing the clamping block, when the U-shaped edge is sleeved outside the excess part and the first edge, the inclined surface of the clamping block is pressed by the extrusion force of the edge of the U-shaped edge, the force acts on the cutting inclined surface and is decomposed into a force facing the inside of the groove, a spring between the clamping block and the groove bottom of the groove is compressed under the action of the force to form an elastic force facing the outside of the groove, the clamping block is pressed into the groove, the U-shaped edge can be smoothly sleeved outside the excess part and the first edge, when one end of the excess part is pressed on the transverse strip, the second bending edge and the first edge do not, the fixture block pops out from the recess, and the right angle limit card of fixture block is on limit and first package edge are buckled to the second to bordure the U-shaped and fix on the excess portion, the U-shaped is bordured and is connected stably between the excess portion, when needing to dismantle the U-shaped and bordure, penetrates the harder inserted bar of texture in the trompil, presses the fixture block through the inserted bar, during pressing the fixture block back the recess, can easily bordure the U-shaped and pull down, the installation is dismantled conveniently. The utility model discloses a main part of borduring is stable with being connected between door plant main part, outer panel and the interior panel, and the main part of borduring can dismantle very conveniently, is convenient for borduring the change of main part.

The utility model discloses further set up to: the joint of the first vertical bar and the transverse bar is provided with a first compensation block, the joint of the second vertical bar and the transverse bar is provided with a second compensation block, a first clamping groove used for inserting the clamping block is formed between the first compensation block and the first wrapping edge, and a second clamping groove used for inserting the clamping block is formed between the second compensation block and the second bending edge.

Through adopting above-mentioned technical scheme, the clearance between fixture block and the U-shaped bordure has been filled in the setting of first compensation piece and second compensation piece, and two fixture blocks block respectively in first draw-in groove and the second draw-in groove of blocking, have promoted the stability of fixture block, make the fixture block in the inside of U-shaped bordure more steadily.

The utility model discloses further set up to: the transverse bar is provided with a connecting plate, the exceeding part is provided with a connecting groove for inserting the connecting plate, the connecting plate is provided with a fixing hole corresponding to the position of the first threaded blind hole, and the first bolt penetrates through the fixing hole.

Through adopting above-mentioned technical scheme, when covering the U-shaped and overlapping the outside of establishing the excess portion and first borduring, the connecting plate can insert the spread groove, when the U-shaped is covered the complete cover and is established the outside of establishing the excess portion and first borduring, the connecting plate just inserts the spread groove completely, and at this moment, the fixed orifices corresponds with the position of first screw thread blind hole, twists first bolt again at last, has promoted the U-shaped and has bordured the stability of being connected between the excess portion, makes the U-shaped bordure and establish more firmly on the excess portion.

The utility model discloses further set up to: the junction between the first bending edge and the third wrapping edge and the junction between the second bending edge and the second vertical bar are both arc-shaped structures.

Through adopting above-mentioned technical scheme, not only can prevent that user of service from being injured because of careless colliding with, also increased hand sensitivity and pleasing to the eye degree simultaneously.

The utility model discloses further set up to: the one end that is close to the third bordure on the second bordure has seted up the jack, be provided with the inserted block that is used for inserting the jack on the third bordure.

Through adopting above-mentioned technical scheme, the inserted block inserts in the jack, makes second bordure and third bordure be connected, has promoted the overall stability of Z shape bordure through the mode of joggle.

The utility model discloses further set up to: the second bending edge is tightly attached to the second vertical edge.

Through adopting above-mentioned technical scheme, the limit is difficult for buckling to the second, has promoted the stability on limit is buckled to the second.

The utility model discloses further set up to: the first wrapping edge and the second wrapping edge are integrally formed through a die.

Through adopting above-mentioned technical scheme, promoted the stability between first bordure and the second bordure to promote the overall stability of Z shape bordure.

The utility model discloses further set up to: the anti-corrosion coating is coated on the outer portion of the edge covering main body, polyisocyanate and hydroxyl-terminated polyester are used as main raw materials of the anti-corrosion coating, a prepolymer containing-NCO groups is obtained through reaction, and then the prepolymer is reacted with a polyamine solution and an antistatic agent to obtain the polyurethane static electricity conducting anti-corrosion coating.

By adopting the technical scheme, the polyurethane static conductive anticorrosive paint is not easy to crack or fall off, can well keep the integrity and compactness of an anticorrosive coating, and has good static conductive performance.

To sum up, the utility model discloses following beneficial effect has:

the utility model provides a door leaf bordure structure, first bordure and exceed being connected between the part stable, and the installation is dismantled conveniently, it is stable to be connected between second bordure and the door plant main part, and the installation is dismantled conveniently, the third is bordured and is connected stably between the outside board, and the installation is dismantled conveniently, the U-shaped is bordured and is exceeded being connected stably, when needing to dismantle the U-shaped and bordure, penetrate the harder inserted bar of texture in the trompil, press the fixture block through the inserted bar, press the fixture block back among the recess, can easily bordure the U-shaped and pull down, the installation is dismantled conveniently. The utility model discloses a main part of borduring is stable with being connected between door plant main part, outer panel and the interior panel, and the main part of borduring can dismantle very conveniently, is convenient for borduring the change of main part.

Drawings

Fig. 1 is a schematic structural view of a door leaf wrapping structure of the present invention, which is mainly used for showing the overall structure of the present invention;

FIG. 2 is an enlarged view of the portion A in FIG. 1, and is mainly used for showing the connection relationship between the U-shaped wrapping and the excess portion;

fig. 3 is an enlarged view of B in fig. 1, and is mainly used for showing a connection relationship between the second wrapping edge and the third wrapping edge;

fig. 4 is a schematic structural view of a U-shaped edge of the door leaf edge-covering structure of the present invention, which is mainly used for showing the overall structure of the U-shaped edge-covering;

fig. 5 is a schematic structural diagram of a first wrapping edge and a second wrapping edge of the door leaf wrapping structure of the present invention, which is mainly used for showing the overall structure of the first wrapping edge and the second wrapping edge;

fig. 6 is a schematic structural diagram of a third edge of the door leaf edge covering structure of the present invention, which is mainly used for showing the overall structure of the third edge;

fig. 7 is the utility model relates to a door plant main part's of door leaf borduring structure schematic diagram, mainly used shows the overall structure of door plant main part.

In the figure: 1. a door panel main body; 2. an outer panel; 3. an inner panel; 4. an excess portion; 5. z-shaped edge covering; 6. u-shaped edge covering; 7. first edge covering; 8. second edge covering; 9. thirdly, wrapping; 10. a first threaded through hole; 11. a first threaded blind hole; 12. a first bolt; 13. a second threaded through hole; 14. a second threaded blind hole; 15. a second bolt; 16. a first bending edge; 17. a gap; 18. inserting plates; 19. a first vertical bar; 20. a second vertical bar; 21. a horizontal bar; 22. a third threaded through hole; 23. a second bending edge; 24. a groove; 25. a clamping block; 26. a spring; 27. opening a hole; 28. a first compensation block; 29. a second compensation block; 30. a connecting plate; 31. connecting grooves; 32. a fixing hole; 33. a jack; 34. and (5) inserting the blocks.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that the embodiments or technical features described below can be arbitrarily combined to form a new embodiment without conflict.

In the description of the present invention, it should be noted that, for the orientation words, if there are terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the orientation and positional relationship indicated are based on the orientation or positional relationship shown in the drawings, and only for the convenience of describing the present invention and simplifying the description, it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and not be construed as limiting the specific scope of the present invention.

Furthermore, if the terms "first" and "second" are used for descriptive purposes only, they are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. Thus, the definition of "a first" or "a second" feature may explicitly or implicitly include one or more of the features, and in the description of the invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "assembled", "connected", and "connected", if any, are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; or may be a mechanical connection; the two elements can be directly connected or connected through an intermediate medium, and the two elements can be communicated with each other. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific situations.

A door leaf edge covering structure is shown in figures 1-7 and comprises a door plate main body 1 and an edge covering main body.

The outer surface and the inner surface of the door panel main body 1 are respectively fixed with an outer panel 2 and an inner panel 3 through structural adhesive, and the side edge of the inner panel 3 is integrally formed with an excess part 4 which exceeds the door panel main body 1.

The main part of borduring includes that Z shape bordures 5 and U-shaped bordures 6, Z shape bordures 5 including first bordure 7, the second bordures 8 and third bordure 9, first bordure 7 and third bordure 9 vertical fixation respectively in the second bordure 8 both ends, first bordure 7 and 8 integrated into one piece of second bordure form, the second bordures 8 and goes up the one end that is close to the third bordure 9 and seted up jack 33, integrated into one piece has the inserted block 34 that is used for inserting jack 33 on the third bordure 9.

A first threaded through hole 10 is formed in the first wrapping edge 7, a first threaded blind hole 11 corresponding to the first threaded through hole 10 in position is formed in the exceeding part 4, and a first bolt 12 penetrates between the first threaded through hole 10 and the first threaded blind hole 11; a plurality of second threaded through holes 13 are formed in the second wrapping edge 8, a plurality of second threaded blind holes 14 corresponding to the second threaded through holes 13 are formed in the door panel main body 1, and second bolts 15 penetrate between the second threaded through holes 13 and the second threaded blind holes 14; a first bending edge 16 is integrally formed at one end of the third edge covering 9, which is far away from the second edge covering 8, a gap 17 is reserved between the first bending edge 16 and the third edge covering 9, and an inserting plate 18 for inserting the gap 17 is integrally formed on the outer panel 2.

The U-shaped edge 6 is sleeved outside the excess part 4 and the first edge 7, the U-shaped edge 6 comprises a first vertical bar 19, a second vertical bar 20 and a transverse bar 21, the first vertical bar 19, the second vertical bar 20 and the transverse bar 21 are formed by integrally forming through a die, the first vertical bar 19 and the second vertical bar 20 are respectively positioned at two ends of the transverse bar 21, a third threaded through hole 22 corresponding to the position of the first threaded through hole 10 is formed on the first vertical bar 19, the first bolt 12 passes through the third threaded through hole 22, a second bending edge 23 is integrally formed at one end of the second vertical bar 20 far away from the transverse bar 21, grooves 24 are formed at two sides of the excess part 4, clamping blocks 25 with right trapezoid cross sections are arranged in the grooves 24, the inclined surfaces of the clamping blocks 25 face the openings of the U-shaped edge 6, a plurality of springs 26 are connected between the clamping blocks 25 and the bottoms of the grooves 24 through an adhesive, open holes 27 corresponding to the clamping blocks 25 are formed in the positions on the first vertical bar 19 and the second vertical bar 20, the horizontal bar 21 is integrally formed with a connecting plate 30, the exceeding part 4 is provided with a connecting groove 31 for inserting the connecting plate 30, the connecting groove 31 communicates with the first threaded blind hole 11, the connecting plate 30 is provided with a fixing hole 32 corresponding to the first threaded blind hole 11, and the first bolt 12 passes through the fixing hole 32.

As shown in fig. 2, a first compensation block 28 is integrally formed at a joint of the first vertical bar 19 and the horizontal bar 21, a second compensation block 29 is integrally formed at a joint of the second vertical bar 20 and the horizontal bar 21, a first clamping groove for inserting the clamping block 25 is formed between the first compensation block 28 and the first wrapping edge 7, a second clamping groove for inserting the clamping block 25 is formed between the second compensation block 29 and the second bending edge 23, the arrangement of the first compensation block 28 and the second compensation block 29 fills up a gap between the clamping block 25 and the U-shaped wrapping edge 6, the two clamping blocks 25 are respectively clamped into the first clamping groove and the second clamping groove, so that the stability of the clamping block 25 is improved, and the clamping block 25 is more stably clamped inside the U-shaped wrapping edge 6.

As shown in fig. 2 and 6, the connection between the first bending edge 16 and the third wrapping edge 9 and the connection between the second bending edge 23 and the second vertical bar 20 are both arc-shaped, so that the user can be prevented from being injured due to careless collision, and the hand sensitivity and the aesthetic degree are increased.

As shown in fig. 2, the second bending edge 23 is tightly attached to the second vertical edge, and the second bending edge 23 is not easy to bend, thereby improving the stability of the second bending edge 23.

Additionally, the outer part of the edge covering main body is coated with an anti-corrosion coating (not shown in the figure), the anti-corrosion coating is prepared by taking polyisocyanate and hydroxyl-terminated polyester as main raw materials, reacting to obtain a prepolymer containing-NCO groups, and reacting the prepolymer with a polyamine solution and an antistatic agent to obtain the polyurethane static electricity conducting anti-corrosion coating, wherein the polyurethane static electricity conducting anti-corrosion coating is not easy to crack or fall off, the integrity and compactness of the anti-corrosion coating can be well maintained, and the anti-corrosion coating has good static electricity conducting performance.

The working principle is as follows:

when the edge covering main body is installed, the integrally formed first edge covering 7 and the integrally formed second edge covering 8 are installed on the excess part 4 and the door panel main body 1 respectively, the first threaded through hole 10 corresponds to the position of the first threaded blind hole 11, the second threaded through hole 13 corresponds to the position of the second threaded blind hole 14, the second bolt 15 penetrates through the second threaded through hole 13 and the second threaded blind hole 14, the second edge covering 8 is fixed on the door panel main body 1, then the gap 17 between the first bending edge 16 and the third edge covering 9 is aligned to the inserting plate 18, the inserting plate 18 is inserted into the gap 17, the inserting plate 18 is in interference fit with the gap 17, the third edge covering 9 is fixed on the outer panel 2, and when the inserting plate 18 is completely inserted into the gap 17, the inserting block 34 is just inserted into the inserting hole 33, and the third edge covering 9 is connected with the second edge covering 8. Then, the U-shaped edge 6 is sleeved outside the excess part 4 and the first edge 7, when the U-shaped edge 6 is sleeved, the inclined surface of the fixture block 25 is pressed by the edge of the U-shaped edge 6, the force acts on the inclined surface and is decomposed into a force towards the inside of the groove 24, the spring 26 between the fixture block 25 and the groove bottom of the groove 24 is compressed under the action of the force to form an elastic force towards the outside of the groove 24, the fixture block 25 is pressed into the groove 24, the U-shaped edge 6 can be smoothly sleeved outside the excess part 4 and the first edge 7, when one end of the excess part 4 is propped against the transverse bar 21, the second bending edge 23 and the first edge 7 do not press the fixture block 25 any more, the fixture block 25 pops out from the groove 24, the right-angle edge of the fixture block 25 is clamped on the second bending edge 23 and the first edge 7, meanwhile, the connecting plate 30 is inserted into the connecting groove 31, and when the U-shaped edge 6 is completely sleeved outside the excess part 4 and the, the connecting plate 30 is just completely inserted into the connecting groove 31, at this time, the positions of the fixing hole 32, the third threaded through hole 22, the first threaded through hole 10 and the first threaded blind hole 11 correspond, finally, the first bolt 12 is screwed into the third threaded through hole 22, the first threaded through hole 10, the first threaded blind hole 11 and the fixing hole 32 in sequence, and the U-shaped edge 6 is stably connected between the excess parts 4 and the first edge 7.

When the main body of borduring is dismantled, pull out third borduring 9 from picture peg 18 earlier, back out first bolt 12, penetrate harder inserted bars such as iron set in trompil 27, press fixture block 25 through the inserted bar, press fixture block 25 back to among the recess 24, can easily pull out U-shaped bordure 6, finally, again with second bolt 15 all back out can, the installation is dismantled conveniently.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims (8)

1. The utility model provides a door leaf structure of borduring, includes door plant main part (1) and the main part of borduring, the outdoor face and the indoor face of door plant main part (1) are fixed with outer panel (2) and inner panel (3) respectively, the lateral margin integrated into one piece of inner panel (3) has surpass exceeding part (4) of door plant main part (1), the main part of borduring includes that Z shape bordures (5) and U-shaped bordures (6), its characterized in that: the Z-shaped wrapping edge (5) comprises a first wrapping edge (7), a second wrapping edge (8) and a third wrapping edge (9), a first threaded through hole (10) is formed in the first wrapping edge (7), a first threaded blind hole (11) corresponding to the position of the first threaded through hole (10) is formed in the excess part (4), a first bolt (12) penetrates through the first threaded through hole (10) and the first threaded blind hole (11), a plurality of second threaded through holes (13) are formed in the second wrapping edge (8), a plurality of second threaded blind holes (14) corresponding to the positions of the second threaded through holes (13) are formed in the door panel main body (1), a second bolt (15) penetrates through the second threaded through holes (13) and the second threaded blind holes (14), and a first bent edge (16) is fixed at one end, far away from the second wrapping edge (8), of the third wrapping edge (9), a gap (17) is reserved between the first bending edge (16) and the third edge covering (9), an inserting plate (18) used for inserting the gap (17) is arranged on the outer panel (2), the U-shaped edge covering (6) is sleeved outside the exceeding part (4) and the first edge covering (7), the U-shaped edge covering (6) comprises a first vertical bar (19), a second vertical bar (20) and a transverse bar (21), the first vertical bar (19) and the second vertical bar (20) are respectively fixed at two ends of the transverse bar (21), a third threaded through hole (22) corresponding to the position of the first threaded through hole (10) is arranged on the first vertical bar (19), the first bolt (12) penetrates through the third threaded through hole (22), a second bending edge (23) is arranged at one end, far away from the transverse bar (21), of the second bending edge (23) is arranged at two sides of the exceeding part (4), the novel edge-wrapping type spring is characterized in that a clamping block (25) with a right trapezoid-shaped cross section is arranged in the groove (24), an inclined surface of the clamping block (25) faces towards an opening of the U-shaped edge-wrapping (6), a plurality of springs (26) are connected between the clamping block (25) and the groove bottom of the groove (24), and open holes (27) corresponding to the clamping block (25) are formed in the first vertical bar (19) and the second vertical bar (20).

2. The door leaf edging structure of claim 1, wherein: the joint of first vertical bar (19) and horizontal bar (21) is provided with first compensation piece (28), the joint of second vertical bar (20) and horizontal bar (21) is provided with second compensation piece (29), form the first draw-in groove that is used for inserting fixture block (25) between first compensation piece (28) and first bordure (7), form the second draw-in groove that is used for inserting fixture block (25) between second compensation piece (29) and second limit (23) of buckling.

3. The door leaf edging structure of claim 2, wherein: the connecting plate (30) is arranged on the transverse bar (21), a connecting groove (31) used for inserting the connecting plate (30) is formed in the exceeding part (4), a fixing hole (32) corresponding to the position of the first threaded blind hole (11) is formed in the connecting plate (30), and the first bolt (12) penetrates through the fixing hole (32).

4. The door leaf edging structure of claim 3, wherein: the joint between the first bending edge (16) and the third bending edge (9) and the joint between the second bending edge (23) and the second vertical bar (20) are both arc-shaped structures.

5. The door leaf edging structure of claim 4, wherein: an insertion hole (33) is formed in one end, close to the third wrapping edge (9), of the second wrapping edge (8), and an insertion block (34) used for being inserted into the insertion hole (33) is arranged on the third wrapping edge (9).

6. The door leaf edging structure of claim 5, wherein: the second bending edge (23) is tightly attached to the second vertical edge.

7. The door leaf edging structure of claim 6, wherein: the first covered edge (7) and the second covered edge (8) are integrally formed through a die.

8. The door leaf edging structure of claim 7, wherein: the anti-corrosion coating is coated on the outer portion of the edge covering main body, polyisocyanate and hydroxyl-terminated polyester are used as main raw materials of the anti-corrosion coating, a prepolymer containing-NCO groups is obtained through reaction, and then the prepolymer is reacted with a polyamine solution and an antistatic agent to obtain the polyurethane static electricity conducting anti-corrosion coating.

Images