CN211714991U - Sealing structure of door leaf bottom frame - Google Patents

Abstract

The utility model relates to a sealing structure of a bottom frame of a door leaf, which is characterized by comprising an upper frame, a lower frame and a sealing mechanism, wherein the lower frame is embedded at the bottom of the upper frame; the sealing mechanism comprises a fixed block, a first guide sliding block, a second guide sliding block, a first limit sliding block, a second limit sliding block, a first elastic sheet, a second elastic sheet, a hair touch assembly and a rubber strip assembly, and the rubber strip assembly can move downwards through the deformation of the first elastic sheet and the second elastic sheet when the hair touch assembly is compressed after the sealing mechanism is arranged on the lower frame; in the process, the first elastic sheet and the second elastic sheet simultaneously continue to gather the elastic force. When the pressure on the hair-touch component disappears, the rubber strip component can move upwards through the elasticity of the first elastic sheet and the second elastic sheet. Therefore, the sealing function can be achieved, and the sealing mechanism can be prevented from influencing the normal opening and closing of the door leaf. The utility model discloses an overall structure is very reliable, can improve the waterproof nature and the sound insulation in house to can avoid people's life to receive the influence.

Description

Sealing structure of door leaf bottom frame

Technical Field

The utility model relates to the technical field of doors and windows, especially a seal structure of frame at bottom of door leaf.

Background

At present, in order to facilitate the opening and closing of the door leaf, a gap is generally reserved between the bottom edge and the bottom surface of the door leaf. Therefore, after the door is closed, the house cannot be truly sealed, so that the waterproof performance and the sound insulation performance of the house are easily reduced, and inconvenience is easily brought to life of people. Therefore, it is necessary to redesign the structure of the bottom frame of the door leaf.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to solve above-mentioned problem and not enough, provide a seal structure of frame at the bottom of door leaf, this seal structure's overall structure is very reliable, can improve the waterproof nature and the sound insulation in house to can avoid people's life to receive the influence.

The technical scheme of the utility model is realized like this:

a sealing structure of a bottom frame of a door leaf is characterized by comprising an upper frame, a lower frame and a sealing mechanism, wherein an embedded groove is formed in the bottom surface of the upper frame, a mounting groove is formed in the bottom surface of the lower frame, the mounting groove is composed of a limiting guide groove and a first T-shaped guide groove, the limiting guide groove is positioned on the bottom surface of the lower frame, the limiting guide groove extends to the end surfaces of two ends of the lower frame, the first T-shaped guide groove is positioned on the upper groove wall of the limiting guide groove, the first T-shaped guide groove extends to the end surfaces of two ends of the lower frame, and the lower frame is embedded in the embedded groove; the sealing mechanism comprises a fixed block, a first guide slide block, a second guide slide block, a first limit slide block, a second limit slide block, a first elastic sheet, a second elastic sheet, a hair touch assembly and a rubber strip assembly, wherein the top of the rubber strip assembly is provided with a second T-shaped guide groove, the widths of the first limit slide block and the second limit slide block are both larger than the width of the second T-shaped guide groove, the middle part of the first elastic sheet is bent to form a trapezoidal first bent part, the first limit slide block is arranged on the inner wall of the first bent part and is arranged in the second T-shaped guide groove in a sliding manner, the second elastic sheet and the first elastic sheet have the same structure, the middle part of the second elastic sheet is also bent to form a trapezoidal second bent part, the second limit slide block is arranged on the inner wall of the second bent part and is arranged in the second T-shaped guide groove in a sliding manner, the width of first direction slider and second direction slider all is greater than the width of first T type guide slot notch, fixed block, first direction slider, second direction slider arrange in proper order in first T type guide slot to make the fixed block be fixed in first T type guide slot, still make first direction slider, second direction slider all sliding arrangement in first T type guide slot, the adhesive tape subassembly can vertically movably set in spacing guide slot, and make the both ends of first shell fragment articulate respectively on fixed block, first direction slider, still make the both ends of second shell fragment respectively the handing-over on first direction slider, second direction slider, bump and send out subassembly activity arrangement in first T type guide slot to make the one end of bumping and sending out the subassembly meet with second direction slider, still make the other end of bumping and sending out the subassembly to wear to arrange outside the tip of lower frame.

Preferably, the side wall of the fixing block is provided with a first limiting groove, and the groove wall of the first limiting groove is provided with a first hinge hole; a second limiting groove and a third limiting groove are respectively formed in two ends of the first guiding sliding block, a second hinge hole is formed in the groove wall of the second limiting groove, a third hinge hole is formed in the groove wall of the third limiting groove, a fourth limiting groove is formed in the side wall of the second guiding sliding block, and a fourth hinge hole is formed in the groove wall of the fourth limiting groove; the two ends of the first elastic sheet are respectively provided with a first articulated shaft and a second articulated shaft, the two ends of the first elastic sheet are respectively embedded in the first limiting groove and the second limiting groove, the first articulated shaft can be rotatably embedded in the first articulated hole, and the second articulated shaft can be rotatably embedded in the second articulated hole; a third hinge shaft and a fourth hinge shaft are respectively arranged at two ends of the second elastic sheet, two ends of the second elastic sheet are respectively embedded in the third limiting groove and the fourth limiting groove, the third hinge shaft can be rotatably embedded in the third hinge hole, and the fourth hinge shaft can be rotatably embedded in the fourth hinge hole; the bottom of the first limiting slide block is provided with a first clamping groove, the first clamping groove is clamped on the first bending part, the first limiting slide block is further provided with a first through hole which penetrates through the first limiting slide block in the vertical direction, and the first limiting slide block is fixed on the first bending part through a first positioning screw or a rivet which penetrates through the first through hole; the bottom of the second limiting slide block is provided with a second clamping groove, the second clamping groove is clamped on the second bending portion, a second through hole which penetrates through the second limiting slide block in the vertical direction is further formed in the second limiting slide block, and the second limiting slide block is fixed on the second bending portion through a second positioning screw or a rivet which penetrates through the second through hole.

Preferably, the collision sending assembly comprises a limiting part, a screw, a spring and a collision head, wherein the top surface of the limiting part is provided with an insertion head and a limiting part, the limiting part is provided with a through hole, the top of the second guide sliding block is provided with an insertion hole, the insertion head is inserted into the insertion hole, the spring is arranged between the insertion head and the limiting part, the screw is arranged between the insertion head and the limiting part, the threaded end of the screw sequentially penetrates through the spring and the through hole and then is arranged outside the limiting part, two ends of the spring are respectively elastically pressed on the nut of the limiting part and the screw, the nut of the screw is pressed on the second guide sliding block, and the collision head is screwed on the threaded end of the screw and penetrates outside the end part of the lower frame.

Preferably, the collision head is made of nylon.

Preferably, the rubber strip component comprises a section bar and a rubber barrier bar, the section bar is horizontally arranged, the second T-shaped guide groove is provided on the top surface of the section bar, the bottom surface of the section bar is provided with a hidden caulking groove, and the upper groove wall of the hidden caulking groove is provided with a T-shaped clamping groove; the rubber barrier strip is horizontally arranged, an embedded part matched with the T-shaped clamping groove is arranged on the top surface of the rubber barrier strip, a plurality of convex strip parts are arranged on the bottom surface of the rubber barrier strip, and the length directions of the convex strip parts are consistent with the length direction of the rubber barrier strip; the rubber barrier strips are embedded in the hidden caulking grooves, the embedded parts are embedded in the T-shaped clamping grooves, and the convex strip parts are positioned outside the notches of the hidden caulking grooves.

Preferably, the first elastic sheet and the second elastic sheet are both made of iron sheets or steel sheets.

Preferably, the fixed block, the first guide sliding block, the second guide sliding block, the first limit sliding block and the second limit sliding block are all made of nylon materials.

Preferably, the edges of two opposite notches of the embedding groove are respectively provided with an embedding groove; and extension parts are respectively arranged on two side edges of the bottom surface of the lower frame, and the two extension parts are respectively embedded in the corresponding embedding grooves.

Preferably, a third clamping groove and a fourth clamping groove are respectively formed in the top surface of the upper frame, and the third clamping groove and the fourth clamping groove extend to the end faces of the two ends of the upper frame.

Preferably, two mounting grooves are formed in the bottom surface of the lower frame, and sealing mechanisms are mounted in the two mounting grooves respectively.

The utility model has the advantages that: the sealing structure comprises a sealing mechanism, wherein the sealing mechanism comprises a fixed block, a first guide sliding block, a second guide sliding block, a first limit sliding block, a second limit sliding block, a first elastic sheet, a second elastic sheet, a collision assembly and an adhesive tape assembly, and the collision assembly can apply force to the first elastic sheet and the second elastic sheet when being compressed towards the inner side of the first T-shaped guide groove; the middle parts of the first elastic sheet and the second elastic sheet are bent downwards, so that the middle parts of the first elastic sheet and the second elastic sheet move downwards when the first elastic sheet and the second elastic sheet are compressed; just so can promote the adhesive tape subassembly downwards through first spacing slider, second spacing slider to make the adhesive tape subassembly can contact with ground, thereby just enable the door leaf and reach very reliable leakproofness, and then just can improve waterproof, the sound insulation performance in house, receive the influence in order to avoid people's life. When the pressure on the collision assembly disappears, the first limiting slide block and the second limiting slide block can be respectively moved upwards under the elastic action of the first elastic sheet and the second elastic sheet, so that the adhesive tape assembly can be driven to move upwards, the adhesive tape assembly can be separated from the ground, and the sealing mechanism is prevented from influencing the opening of the door leaf. The overall structure design of the sealing structure is very reliable, and the applicability is very strong.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic sectional view of the present invention.

Fig. 3 is a schematic view of a partial structure of the middle sealing mechanism of the present invention.

Fig. 4 is a schematic structural view of the upper frame of the present invention.

Fig. 5 is a schematic structural view of the middle and lower frames of the present invention.

Fig. 6 is a schematic structural view of the first elastic sheet of the present invention.

Fig. 7 is a schematic structural view of the second elastic piece of the present invention.

Fig. 8 is a schematic structural diagram of the middle fixing block of the present invention.

Fig. 9 is a schematic structural diagram of the middle fixing block of the present invention.

Fig. 10 is a schematic structural diagram of the first guiding slider according to the present invention.

Fig. 11 is a second schematic structural view of the first guiding slider according to the present invention.

Fig. 12 is a schematic structural diagram of a second guiding slider according to the present invention.

Fig. 13 is a second schematic structural view of the second guiding slider according to the present invention.

Fig. 14 is a schematic structural diagram of the first limiting slider according to the present invention.

Fig. 15 is a second schematic structural view of the first limit slider according to the present invention.

Fig. 16 is a schematic structural diagram of a second limiting slider according to the present invention.

Fig. 17 is a second schematic structural view of the second limiting slider according to the present invention.

Fig. 18 is a schematic view of the split structure of the middle hair-touch assembly of the present invention.

Fig. 19 is a schematic view of the split structure of the middle adhesive tape assembly of the present invention.

Detailed Description

It should be noted that all the directional indicators (such as the top surface, the bottom surface, the left, the right, the front, and the rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

As shown in fig. 1, the sealing structure of the bottom frame of the door leaf of the present invention comprises an upper frame 1, a lower frame 2, and a sealing mechanism 3, wherein, as shown in fig. 4, an embedding groove 11 is formed on the bottom surface of the upper frame 1; as shown in fig. 5, an installation groove 21 is formed in the bottom surface of the lower frame 2, the installation groove 21 is composed of a limiting guide groove 201 and a first T-shaped guide groove 202, the limiting guide groove 201 is located on the bottom surface of the lower frame 2, and the limiting guide groove 201 extends to the end surfaces of the two ends of the lower frame 2, the first T-shaped guide groove 202 is located on the upper groove wall of the limiting guide groove 201, and the first T-shaped guide groove 202 extends to the end surfaces of the two ends of the lower frame 2; as shown in fig. 1, the lower frame 2 is fitted in the fitting groove 11; as shown in fig. 1 to 3, the sealing mechanism 3 includes a fixed block 31, a first guiding slide block 32, a second guiding slide block 33, a first limiting slide block 34, a second limiting slide block 35, a first elastic sheet 36, a second elastic sheet 37, a hair touching assembly 38, and a rubber strip assembly 39; as shown in fig. 19, a second T-shaped guide groove 391 is formed at the top of the adhesive tape assembly 39; as shown in fig. 1 to 3, the widths of the first limiting slider 34 and the second limiting slider 35 are both greater than the width of the second T-shaped guide slot 391, the middle portion of the first resilient sheet 36 is bent to form a trapezoidal first bent portion 361, the first limiting slider 34 is disposed on the inner wall of the first bent portion 361, and the first limiting slider 34 is slidably disposed in the second T-shaped guide slot 391, the second resilient sheet 37 and the first resilient sheet 36 have the same structure, the middle portion of the second resilient sheet 37 is also bent to form a trapezoidal second bent portion 371, the second limiting slider 35 is disposed on the inner wall of the second bent portion 371, and the second limiting slider 35 is slidably disposed in the second T-shaped guide slot 391, the widths of the first guiding slider 32 and the second guiding slider 33 are both greater than the width of the notch of the first T-shaped guide slot 202, and the fixed block 31, the first guiding slider 32, the second limiting slider 33, and the second limiting slider 35 are all greater than the width of the notch of the first, The second guide sliding block 33 is sequentially arranged in the first T-shaped guide groove 202, the fixing block 31 is fixed in the first T-shaped guide groove 202, the first guide sliding block 32 and the second guide sliding block 33 are arranged in the first T-shaped guide groove 202 in a sliding manner, the adhesive tape assembly 39 can be vertically and movably embedded in the limiting guide groove 201, two ends of the first elastic sheet 36 are respectively hinged to the fixing block 31 and the first guide sliding block 32, two ends of the second elastic sheet 37 are respectively crossed to the first guide sliding block 32 and the second guide sliding block 33, the hair collision assembly 38 is movably arranged in the first T-shaped guide groove 202, one end of the hair collision assembly 38 is connected with the second guide sliding block 33, and the other end of the hair collision assembly 38 penetrates out of the end of the lower frame 2. The sealing structure comprises a sealing mechanism 3, wherein the sealing mechanism 3 comprises a fixed block 31, a first guide slide block 32, a second guide slide block 33, a first limit slide block 34, a second limit slide block 35, a first elastic sheet 36, a second elastic sheet 37, a hair-touch assembly 38 and a rubber strip assembly 39, and force can be applied to the first elastic sheet 36 and the second elastic sheet 37 when the hair-touch assembly 38 is compressed towards the inner side of the first T-shaped guide groove 202 through the assembly structure; because the middle parts of the first elastic sheet 36 and the second elastic sheet 37 are bent downwards, the middle parts of the first elastic sheet 36 and the second elastic sheet 37 move downwards when being compressed; just so can promote adhesive tape subassembly 39 downwards through first limit slide 34, second limit slide 35 to make adhesive tape subassembly 39 can contact with ground, thereby just can make the door leaf reach very reliable leakproofness, and then just can improve the waterproof, the sound insulation performance in house, receive the influence in order to avoid people's life. When the pressure on the collision assembly 38 disappears, the first limiting slide block 34 and the second limiting slide block 35 can be respectively moved upwards under the elastic action of the first elastic sheet 36 and the second elastic sheet 37, so that the rubber strip assembly 39 can be driven to move upwards, the rubber strip assembly 39 can be separated from the ground, and the sealing mechanism 3 is prevented from influencing the opening of the door leaf. The overall structure design of the sealing structure is very reliable, and the applicability is very strong.

Through the adoption of second T type guide slot 391, first spacing slider 34 and second spacing slider 35 to and make the width of first spacing slider 34 and second spacing slider 35 all be greater than the width of second T type guide slot 391, can improve the reliability that first shell fragment 36 and second shell fragment 37 act on adhesive tape subassembly 39 effectively, thereby help improving the stability that adhesive tape subassembly 39 reciprocated.

The second elastic sheet 37 and the second elastic sheet 37 have the same structure, and here, the structure, shape and dimensions of the second elastic sheet 37 and the second elastic sheet are the same.

The fixing block 31 may be fixed in the first T-shaped guide groove 202 by a screw or welding.

The sealing structure is mounted on the bottom jamb of the door leaf with the hair-striking assembly 38 facing the door frame. When the door is closed, the collision assembly 38 contacts the door frame, so that the collision assembly 38 is compressed, and the sealing mechanism 3 is actuated, so that the adhesive tape assembly 39 moves downwards and clings to the ground, and thus the sealing effect is achieved. When the door leaf is opened, the collision assembly 38 loses the compressive force, and then the adhesive tape assembly 39 can move upwards under the elastic force of the first elastic sheet 36 and the second elastic sheet 37, so that the adhesive tape assembly 39 is separated from the ground, and the door leaf can be conveniently opened.

As shown in fig. 3, 6 to 17, a first limiting groove 311 is formed on a side wall of the fixing block 31, and a first hinge hole 312 is formed on a groove wall of the first limiting groove 311; a second limiting groove 321 and a third limiting groove 322 are respectively formed at two ends of the first guiding sliding block 32, a second hinge hole 323 is formed in the groove wall of the second limiting groove 321, a third hinge hole 324 is formed in the groove wall of the third limiting groove 322, a fourth limiting groove 331 is formed in the side wall of the second guiding sliding block 33, and a fourth hinge hole 332 is formed in the groove wall of the fourth limiting groove 331; two ends of the first elastic sheet 36 are respectively provided with a first hinge shaft 362 and a second hinge shaft 363, two ends of the first elastic sheet 36 are respectively embedded in the first limiting groove 311 and the second limiting groove 321, the first hinge shaft 362 is rotatably embedded in the first hinge hole 312, and the second hinge shaft 363 is rotatably embedded in the second hinge hole 323; a third hinge shaft 372 and a fourth hinge shaft 373 are respectively arranged at two ends of the second elastic sheet 37, two ends of the second elastic sheet 37 are respectively embedded in the third limiting groove 322 and the fourth limiting groove 331, the third hinge shaft 372 is rotatably embedded in the third hinge hole 324, and the fourth hinge shaft 373 is rotatably embedded in the fourth hinge hole 332; a first clamping groove 341 is formed at the bottom of the first limiting slide block 34, the first clamping groove 341 is clamped on the first bending portion 361, a first through hole 342 which vertically penetrates through the first limiting slide block 34 is further formed in the first limiting slide block 34, and the first limiting slide block 34 is fixed on the first bending portion 361 through a first positioning screw 10 or a rivet which penetrates through the first through hole 342; the bottom of the second limiting slide block 35 is provided with a second clamping groove 351, the second clamping groove 351 is clamped on the second bending portion 371, the second limiting slide block 35 is further provided with a second through hole 352 which vertically penetrates through the second limiting slide block, and the second limiting slide block 35 is fixed on the second bending portion 371 through a second set screw 20 or a rivet which penetrates through the second through hole 352. Through foretell structural design, can play spacing effect of direction to first shell fragment 36, second shell fragment 37 respectively, can guarantee overall structure's harmony and stability like this at sealing mechanism 3 action in-process to help improving seal structure's reliability. By adopting the hinged structure, the compression and extension of the first elastic sheet 36 and the second elastic sheet 37 can be smoother, so that the deformation of the first elastic sheet 36 and the second elastic sheet 37 can be avoided.

In the actual manufacturing process, the first elastic sheet 36, the second elastic sheet 37, the first hinge shaft 362, the second hinge shaft 363, the third hinge shaft 372 and the fourth hinge shaft 373 are made of metal. When assembling the sealing structure, first hinge shaft 362 is inserted into first hinge hole 312, then one end of first elastic sheet 36 is embedded into first limiting groove 311, and finally the end of first elastic sheet 36 is welded with first hinge shaft 362, so that the hinge connection can be realized. Wherein, the connection between other articulated shafts and the corresponding elastic sheets is also assembled in the same way.

As shown in fig. 2 and 18, the hair-striking assembly 38 includes a stopper 381, a screw 382, a spring 383, a striking head 384, the top surface of the limit member 381 is provided with an inserting head 301 and a limit portion 302 respectively, the limiting part 302 is provided with a through hole 303, the top of the second guide sliding block 33 is provided with an insertion hole 330, the cartridge 301 is inserted into the insertion hole 330, the spring 383 is arranged between the cartridge 301 and the stopper 302, the screw 382 is arranged between the cartridge 301 and the stopper 302, the screw 385 of the screw 382 passes through the spring 383 and the through hole 303 in sequence and is then arranged outside the limit member 381, and the two ends of the spring 383 are respectively and elastically pressed on the limit portion 302 and the nut 386 of the screw 382, and the nut 386 of the screw 382 is pressed against the second guide slider 33, said impact head 384 being screwed onto the threaded end 385 of the screw 382 and the impact head 384 being threaded outside the end of the lower frame 2. The hair-striking assembly 38 is simple and reliable in construction and is easy to install. Because the impact head 384 is threaded onto the screw 382, one can adjust the amount of extension and retraction of the impact head 384 during use, thereby helping to improve the applicability of the seal.

As shown in fig. 18, in the actual manufacturing process, a stop piece 380 can be respectively sleeved on the screws 382 at the two ends of the spring 383, and the end of the spring 383 can be pressed against the stop piece 380.

The impact head 384 is made of nylon. In a specific implementation, the impact head 384 is made of wear-resistant nylon. The wear-resistant nylon is nylon modified plastic prepared by taking nylon resin as a base material, adding various antifriction materials and mixing the materials by an extruder.

As shown in fig. 1 and fig. 19, the rubber strip assembly 39 includes a profile bar 392 and a rubber baffle 393, the profile bar 392 is horizontally disposed, the second T-shaped guide groove 391 is opened on the top surface of the profile bar 392, the bottom surface of the profile bar 392 is opened with a hidden insertion groove 394, and the upper groove wall of the hidden insertion groove 394 is opened with a T-shaped clamping groove 395; the rubber barrier 393 is horizontally arranged, the top surface of the rubber barrier 393 is provided with an embedded part 396 matched with the T-shaped clamping groove 395, the bottom surface of the rubber barrier 393 is provided with a plurality of convex strip parts 397, and the length direction of the convex strip parts 397 is consistent with that of the rubber barrier 393; the rubber stopper 393 is fitted into the recessed groove 394, the fitting portion 396 is fitted into the T-shaped notch 395, and the projecting strip portions 397 are located outside the notch of the recessed groove 394. The structure of the adhesive tape assembly 39 is very simple and reliable.

The first elastic sheet 36 and the second elastic sheet 37 are both made of iron sheets or steel sheets. This contributes to the structural strength of the seal structure.

The fixed block 31, the first guide slide block 32, the second guide slide block 33, the first limit slide block 34 and the second limit slide block 35 are all made of nylon materials.

As shown in fig. 1, 4 and 5, two opposite notch edges of the embedding groove 11 are respectively provided with an embedding groove 111; the two sides of the bottom surface of the lower frame 2 are respectively provided with an extending part 22, and the two extending parts 22 are respectively embedded in the corresponding embedding grooves 111. By such a structural design, the reliability of the installation and positioning of the lower frame 2 can be further improved.

In the actual installation process, the lower frame 2 can be fixed in a tightly embedded mode. But also can be fixed by screws; specifically, the screw is screwed on the upper frame 1 after passing through the extension part 22.

As shown in fig. 1 and 4, a third card slot 12 and a fourth card slot 13 are respectively formed on the top surface of the upper frame 1, and the third card slot 12 and the fourth card slot 13 both extend to the end surfaces of the two ends of the upper frame 1. This facilitates the installation of the double door panel.

The section bar 392, the upper frame 1 and the lower frame 2 are all made of aluminum profiles.

As shown in fig. 1, two mounting grooves 21 are formed in the bottom surface of the lower frame 2, and the sealing mechanisms 3 are mounted in the two mounting grooves 21, respectively. With this structure, the sealing performance of the seal structure can be further improved.

Claims (10)

1. The utility model provides a seal structure of frame at bottom of door leaf which characterized in that: the sealing device comprises an upper frame (1), a lower frame (2) and a sealing mechanism (3), wherein an embedded groove (11) is formed in the bottom surface of the upper frame (1), an installation groove (21) is formed in the bottom surface of the lower frame (2), the installation groove (21) is composed of a limiting guide groove (201) and a first T-shaped guide groove (202), the limiting guide groove (201) is located on the bottom surface of the lower frame (2), the limiting guide groove (201) extends to the end faces of the two ends of the lower frame (2), the first T-shaped guide groove (202) is located on the upper groove wall of the limiting guide groove (201), the first T-shaped guide groove (202) extends to the end faces of the two ends of the lower frame (2), and the lower frame (2) is embedded in the embedded groove (11); the sealing mechanism (3) comprises a fixed block (31), a first guide sliding block (32), a second guide sliding block (33), a first limit sliding block (34), a second limit sliding block (35), a first elastic sheet (36), a second elastic sheet (37), a hair touching assembly (38) and a rubber strip assembly (39), wherein a second T-shaped guide groove (391) is formed in the top of the rubber strip assembly (39), the widths of the first limit sliding block (34) and the second limit sliding block (35) are both larger than the width of the second T-shaped guide groove (391), a trapezoidal first bent part (361) is formed in the middle of the first elastic sheet (36) in a bending mode, the first limit sliding block (34) is arranged on the inner wall of the first bent part (361), the first limit sliding block (34) is arranged in the second T-shaped guide groove (391) in a sliding mode, and the structure of the second elastic sheet (37) is completely the same as that of the first elastic sheet (36), a second bending part (371) which is trapezoidal is also formed in the middle of the second elastic sheet (37) in a bending mode, the second limiting sliding block (35) is arranged on the inner wall of the second bending part (371), the second limiting sliding block (35) is arranged in the second T-shaped guide groove (391) in a sliding mode, the widths of the first guiding sliding block (32) and the second guiding sliding block (33) are larger than the width of the notch of the first T-shaped guide groove (202), the fixing block (31), the first guiding sliding block (32) and the second guiding sliding block (33) are sequentially arranged in the first T-shaped guide groove (202), the fixing block (31) is fixed in the first T-shaped guide groove (202), the first guiding sliding block (32) and the second guiding sliding block (33) are arranged in the first T-shaped guide groove (202) in a sliding mode, the adhesive tape assembly (39) can be vertically and movably embedded in the limiting guide groove (201), and the two ends of the first elastic sheet (36) are respectively hinged on the fixed block (31) and the first guide sliding block (32), the two ends of the second elastic sheet (37) are respectively connected on the first guide sliding block (32) and the second guide sliding block (33), the hair touching component (38) is movably arranged in the first T-shaped guide groove (202), one end of the hair touching component (38) is connected with the second guide sliding block (33), and the other end of the hair touching component (38) is arranged outside the end part of the lower frame (2) in a penetrating manner.

2. A sealing structure of a door leaf bottom frame according to claim 1, wherein: a first limiting groove (311) is formed in the side wall of the fixing block (31), and a first hinge hole (312) is formed in the groove wall of the first limiting groove (311); a second limiting groove (321) and a third limiting groove (322) are respectively formed at two ends of the first guide sliding block (32), a second hinge hole (323) is formed in the groove wall of the second limiting groove (321), a third hinge hole (324) is formed in the groove wall of the third limiting groove (322), a fourth limiting groove (331) is formed in the side wall of the second guide sliding block (33), and a fourth hinge hole (332) is formed in the groove wall of the fourth limiting groove (331); two ends of the first elastic sheet (36) are respectively provided with a first articulated shaft (362) and a second articulated shaft (363), two ends of the first elastic sheet (36) are respectively embedded in the first limiting groove (311) and the second limiting groove (321), the first articulated shaft (362) can be rotatably embedded in the first articulated hole (312), and the second articulated shaft (363) can be rotatably embedded in the second articulated hole (323); a third hinge shaft (372) and a fourth hinge shaft (373) are respectively arranged at two ends of the second elastic sheet (37), two ends of the second elastic sheet (37) are respectively embedded in the third limiting groove (322) and the fourth limiting groove (331), the third hinge shaft (372) can be rotatably embedded in the third hinge hole (324), and the fourth hinge shaft (373) can be rotatably embedded in the fourth hinge hole (332); a first clamping groove (341) is formed in the bottom of the first limiting sliding block (34), the first clamping groove (341) is clamped on the first bending portion (361), a first through hole (342) which vertically penetrates through the first limiting sliding block (34) is further formed in the first limiting sliding block, and the first limiting sliding block (34) is fixed on the first bending portion (361) through a first positioning screw (10) or a rivet which penetrates through the first through hole (342); second draw-in groove (351) have been seted up to the bottom of second limit slider (35) to make second draw-in groove (351) card put on second kink (371), still set up vertical second perforation (352) that run through on second limit slider (35), second limit slider (35) are through passing second perforation (352) set screw two (20) or fix with rivet on second kink (371).

3. A sealing structure of a door leaf bottom frame according to claim 1, wherein: the hair collision assembly (38) comprises a limiting piece (381), a screw (382), a spring (383) and a collision head (384), wherein the top surface of the limiting piece (381) is provided with an insertion head (301) and a limiting part (302), the limiting part (302) is provided with a through hole (303), the top of the second guide slide block (33) is provided with an insertion hole (330), the insertion head (301) is inserted into the insertion hole (330), the spring (383) is arranged between the insertion head (301) and the limiting part (302), the screw (382) is arranged between the insertion head (301) and the limiting part (302), the threaded end (385) of the screw (382) sequentially penetrates through the spring (383) and the through hole (303) and then is arranged outside the limiting piece (381), and the two ends of the spring (383) respectively elastically press against the nut (386) of the limiting part (302) and the screw (382), and pressing the cap (386) of the screw (382) against the second guide slider (33), the impact head (384) being screwed onto the threaded end (385) of the screw (382), and the impact head (384) being inserted outside the end of the lower frame (2).

4. A sealing structure of a door leaf bottom frame according to claim 3, wherein: the collision head (384) is made of nylon.

5. A sealing structure of a door leaf bottom frame according to claim 1, wherein: the rubber strip assembly (39) comprises a section bar (392) and a rubber baffle bar (393), the section bar (392) is horizontally arranged, the second T-shaped guide groove (391) is formed in the top surface of the section bar (392), a hidden embedding groove (394) is formed in the bottom surface of the section bar (392), and a T-shaped clamping groove (395) is formed in the upper groove wall of the hidden embedding groove (394); the rubber barrier strip (393) is horizontally arranged, an embedding part (396) matched with the T-shaped clamping groove (395) is arranged on the top surface of the rubber barrier strip (393), a plurality of convex strip parts (397) are arranged on the bottom surface of the rubber barrier strip (393), and the length direction of the convex strip parts (397) is consistent with that of the rubber barrier strip (393); the rubber blocking strip (393) is embedded in the hidden embedding groove (394), the embedded part (396) is embedded in the T-shaped clamping groove (395), and the convex strip parts (397) are positioned outside the notch of the hidden embedding groove (394).

6. A sealing structure of a door leaf bottom frame according to claim 1, wherein: the first elastic sheet (36) and the second elastic sheet (37) are both made of iron sheets or steel sheets.

7. A sealing structure of a door leaf bottom frame according to claim 1, wherein: the fixed block (31), the first guide sliding block (32), the second guide sliding block (33), the first limiting sliding block (34) and the second limiting sliding block (35) are all made of nylon materials.

8. A sealing structure of a door leaf bottom frame according to claim 1, wherein: the edges of two opposite notches of the embedding groove (11) are respectively provided with an embedding groove (111); extension parts (22) are respectively arranged on two side edges of the bottom surface of the lower frame (2), and the two extension parts (22) are respectively embedded in the corresponding embedding grooves (111).

9. A sealing structure of a door leaf bottom frame according to claim 1, wherein: and a third clamping groove (12) and a fourth clamping groove (13) are respectively formed in the top surface of the upper frame (1), and the third clamping groove (12) and the fourth clamping groove (13) are extended to the end surfaces of the two ends of the upper frame (1).

10. A sealing structure of a door leaf bottom frame according to claim 1, wherein: two mounting grooves (21) are formed in the bottom surface of the lower frame (2), and sealing mechanisms (3) are mounted in the two mounting grooves (21) respectively.

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