CN213269747U

CN213269747U - Safe telescopic door sill more convenient to use

Info

Publication number: CN213269747U
Application number: CN202021830280.6U
Authority: CN
Inventors: 王红娟; 何丽华
Original assignee: Guangzhou Xuya Household Items Co ltd
Current assignee: Guangzhou Xuya Household Items Co ltd
Priority date: 2020-08-27
Filing date: 2020-08-27
Publication date: 2021-05-25
Anticipated expiration: 2030-08-27

Abstract

The utility model discloses a safe telescopic door sill with more convenient use, which comprises a mesh, a cloth rolling shaft, an upper fixed seat and a lower fixed seat, wherein the cloth rolling shaft is assembled between the upper fixed seat and the lower fixed seat, and one end of the mesh is connected with the cloth rolling shaft; a locking mechanism is arranged in the upper fixed seat, and the cloth rolling shaft is connected with the locking mechanism; the lower fixing seat comprises a lower shell seat and a pre-adjusting piece, the lower end of the cloth rolling shaft is connected and fixed with the pre-adjusting piece, the pre-adjusting piece is rotated to drive the cloth rolling shaft to rotate so as to tighten or loosen the cloth rolling shaft, an adjusting structure for pre-tightening force of the cloth rolling shaft is formed, and the pre-adjusting piece after adjustment is assembled and fixed with the lower shell seat so as to lock the cloth rolling shaft. The utility model discloses a set up the pretightning force that rotatable preset adjusted the batching axle in the fixing base down to the realization is adjustable to the pulling force of screen cloth, thereby can adapt to different users' demand, reaches more humanized design.

Description

Safe telescopic door sill more convenient to use

Technical Field

The utility model relates to a children protection product technical field, concretely relates to a safety protection door fence for preventing infant from walking away from indoor.

Background

In order to prevent accidents such as loss and personal injury caused by the fact that the infants walk out of the room, people often attach a protective door fence to an indoor door, for example, a protective door fence is disclosed. This kind of protection door fence is mainly including the screen cloth, two upper and lower fixing bases, batching axle subassembly, couple, hook seat etc. and the screen cloth is connected with batching axle subassembly, can pull out outward, also can be through the automatic rolling up of batching axle subassembly. Generally be provided with locking mechanical system in last fixing base, like the protection door fence of aforementioned utility model patent, it need press and rotatory support the piece that pushes away, makes the inside locking mechanical system of fixing base lock batching axle, and the screen cloth is fixed this moment can not the rolling. When the locking is released, the pushing piece needs to be rotated, the pushing piece rebounds under the action of the spring, the locking mechanism is unlocked, and the mesh cloth can be automatically rolled at the moment. The main disadvantage of this kind of safety retractable door sill is that the force required for pulling out the net cloth is determined by the pretightening force of the cloth rolling shaft and its internal spring, and the pretightening force of the existing safety retractable door sill is fixed because the relative position of the spring and the cloth rolling shaft is fixed. In practical application, different people have different forces, some people want to have a larger pulling force, and some people want to have a smaller pulling force, but the safety retractable door sill on the market at present cannot meet the requirements. In addition, the locking structure of the existing safe telescopic door sill is complex and inconvenient to assemble.

SUMMERY OF THE UTILITY MODEL

The utility model discloses solve the defect to prior art existence, provide a structural design more reasonable, can transfer the pretightning force of big or turning down the batching axle, use more convenient safe flexible door fence, the utility model discloses applied the partial technical scheme that the applicant discloses in the prior application of title for "a safe door fence that the protecting effect is better".

In order to solve the technical problem, the utility model adopts the following technical scheme: a safe telescopic door sill which is more convenient to use comprises a mesh, a cloth rolling shaft, an upper fixing seat and a lower fixing seat, wherein the cloth rolling shaft with a spring inside is assembled between the upper fixing seat and the lower fixing seat; go up to be provided with locking mechanism in the fixing base, the batching axle is connected its characterized in that with locking mechanism: the lower fixing seat comprises a lower shell seat and a pre-adjusting piece, the lower end of the cloth rolling shaft is fixedly connected with the pre-adjusting piece, the pre-adjusting piece is rotated to drive the cloth rolling shaft to rotate so as to tighten or loosen the cloth rolling shaft, an adjusting structure for pre-tightening force of the cloth rolling shaft is formed, and the pre-adjusting piece after adjustment is assembled and fixed with the lower shell seat so as to lock the cloth rolling shaft.

Furthermore, a shaft hole is arranged in the lower shell seat, and the bottom surface of the lower shell seat is provided with engaging teeth with one side of an inclined plane structure around the shaft hole; the preset part comprises a chassis and a connecting column, the connecting column is connected to the center of the chassis to form an inverted T-shaped structure, the upper surface of the chassis is provided with occlusion teeth matched with the bottom surface of the lower shell seat around the connecting column, the connecting column penetrates through a shaft hole to be connected and fixed with the cloth rolling shaft, and the occlusion teeth of the preset part are occluded and fixed with the occlusion teeth of the lower shell seat by locking and fixing the chassis and the lower shell seat to form an adjustable locking structure for the cloth rolling shaft. For example, clockwise rotation may be set as pre-tightening and counterclockwise rotation may be set as pre-loosening. The screen cloth can be pulled out only by larger pulling force after the pre-tightening, and the screen cloth can be pulled out only by smaller pulling force after the pre-tightening, so that the screen cloth can adapt to the demands of users.

Furthermore, three fixing lugs are arranged on the edge of the chassis and are uniformly arranged along the edge of the chassis, and the fixing lugs penetrate through screws to be locked and fixed with the lower housing.

Furthermore, the locking mechanism comprises a locking piece and a coupling piece, the locking piece and the coupling piece are arranged in the upper shell seat of the upper fixed seat together, the coupling piece is arranged in the locking piece, and the upper end of the cloth rolling shaft is connected with the coupling piece to form a synchronous rotating structure; the interlocking structure is mutually embedded to lock the coupling piece and the locking piece to form a fixed structure, and the interlocking structure is mutually separated to unlock the coupling piece and the locking piece to form a rotatable structure of the coupling piece; a knob which extends out of the upper shell seat so as to be pressed and rotated by hands is arranged on the locking piece, and the locking piece and the coupling piece are pushed to be mutually embedded and locked when the knob is pressed down; when the knob is lifted, the locking piece and the coupling piece are in an unlocking state of mutual separation.

Furthermore, the embedded interlocking structure comprises a latch structure which is arranged on the inner side surface of the lower part of the locking piece and has concave-convex intervals, and a latch structure which is arranged on the outer side surface of the coupling piece and has concave-convex intervals, and the latch structure of the locking piece and the latch structure of the coupling piece are matched structures which can be embedded with each other; a spring is arranged between the locking piece and the coupling piece, and the locking piece is jacked up through the spring to enable the coupling piece to be separated from the locking piece to achieve unlocking.

Furthermore, a plurality of vertical clamping grooves are formed in the inner wall of the upper shell seat, clamping blocks matched with the clamping grooves are arranged on the outer wall of the locking piece, and the locking piece is embedded into the clamping grooves through the clamping blocks to be fixedly combined with the upper shell seat.

Furthermore, a circle of locking sliding edge is also arranged in the upper shell seat, at least one group of locking grooves are arranged on the locking sliding edge, each locking groove comprises a deep groove and a shallow groove, the depth of the shallow groove is smaller than that of the deep groove, and a distance is formed between the deep groove and the shallow groove; a positioning block matched with the locking groove is arranged on the outer wall of the knob, and when the knob rotates to the position that the positioning block is opposite to the deep groove, the locking piece is jacked up through a spring to clamp the positioning block into the deep groove, so that an unlocking structure of the coupling piece and the locking piece is formed; when the positioning block is separated from the deep groove, the knob presses down the locking piece to be clamped with the coupling piece to form a locking structure. Compared with the locking structure of the existing safe telescopic door sill, the locking structure is simpler and more practical, and is very convenient to assemble.

Furthermore, a shaft clamping arm is arranged in the middle of the coupling part, an insertion groove is arranged at the upper end of the cloth rolling shaft, the cloth rolling shaft and the coupling part are combined and fixed by clamping the shaft clamping arm into the insertion groove, and the coupling part is covered by a bottom cover at the bottom of the upper fixing seat. The combination is simple and effective, the cloth beam rotates, the coupling piece is driven to rotate together by the shaft clamping arm, and if the coupling piece is locked, the cloth beam cannot rotate by the shaft clamping arm.

Furthermore, a fixing plate for fixing the whole upper fixing seat is arranged at the rear part of the upper shell seat in a sliding fit mode, a fixing box is arranged in the upper shell seat, a pressure spring is arranged in the fixing box, a sliding block is arranged on the fixing box in a sliding mode, the tail end of the sliding block abuts against the pressure spring, and the bottom edge of the fixing plate is clamped by the sliding block due to the ejection of the elasticity of the pressure spring in a natural state, so that an assembling structure for the fixing plate is formed. When the fixed plate is to be disassembled, the sliding block is buckled by fingers and slides towards the direction far away from the fixed plate, the fixed plate can be loosened by the sliding block, the fixed plate can be taken out at the moment, and the assembly and the disassembly are all very convenient.

Furthermore, two support rods are arranged between the upper fixing seat and the lower fixing seat and are parallel to each other; the tradition generally only adopts a bracing piece, and intensity is high inadequately, and the great children of strength may push away bad bracing piece, can solve this problem behind the increase bracing piece. The two support rods are provided with movable fixed seats which can move up and down along the support rods, and the movable fixed seats form a fixed structure for the middle position of the safe telescopic door sill. When the safety telescopic door sill is high in height, the middle stability is insufficient due to the fact that only the upper fixing point and the lower fixing point are arranged, and the safety telescopic door sill is easy to be damaged by pushing. And after the movable fixed seat is arranged in the middle, the middle of the door sill can be stably fixed.

The utility model discloses a set up the pretightning force that rotatable preset adjusted the batching axle in the fixing base down to the realization is adjustable to the pulling force of screen cloth, thereby can adapt to different users' demand, reaches more humanized design. In addition, the locking structure in the upper fixing seat can be assembled only by vertically embedding and assembling, the structure is simpler, and the assembly operation is more convenient and faster.

Drawings

FIG. 1 is an overall structure diagram of the present invention;

FIG. 2 is an overall view of another aspect of the present invention;

FIG. 3 is a view showing the usage state of the present invention;

FIG. 4 is an exploded view of the upper fixing base of the present invention;

FIG. 5 is an exploded view of the upper fixing base of the present invention from another angle;

FIG. 6 is a view showing the structure of the upper housing and the knob;

FIG. 7 is an exploded view of the lower fixing base;

fig. 8 is an exploded view of the lower fixing base at another angle.

In the figure, 1 is an upper fixing base, 10 is an upper shell base, 11 is a locking sliding edge, 12 is a deep groove, 13 is a shallow groove, 14 is a clamping groove, 15 is a fixing plate, 16 is a fixing box, 17 is a sliding block, 18 is a pressure spring, 19 is a spring, 2 is a locking part, 21 is a latch structure, 22 is a latch block, 3 is a coupling member, 31 is a latch structure, 32 is a latch arm, 4 is a knob, 41 is a positioning block, 5 is a cloth rolling shaft, 51 is an insertion groove, 6 is a bottom cover, 7 is a supporting rod, 71 is a movable fixing base, 8 is a mesh cloth, 9 is a lower fixing base, 91 is a lower shell base, 92 is a shaft hole, 93 is an engaging tooth, 94 is a preset member, 95 is a chassis, 96 is an engaging tooth, 97 is a connecting column, and 98 is a fixing lug.

Detailed Description

In this embodiment, referring to fig. 1 to 8, the more convenient-to-use safe retractable door sill includes a mesh 8, a cloth winding shaft 5, an upper fixing seat 1 and a lower fixing seat 9, the cloth winding shaft 5 with a spring inside is assembled between the upper fixing seat 1 and the lower fixing seat 9, one end of the mesh 8 is connected with the cloth winding shaft 5 and can be wound by the cloth winding shaft 5, and the other end of the mesh 8 is provided with a hanging mechanism; a locking mechanism is arranged in the upper fixed seat 1, and the cloth rolling shaft 5 is connected with the locking mechanism; the lower fixing seat 9 comprises a lower shell seat 91 and a preset part 94, the lower end of the cloth rolling shaft 5 is fixedly connected with the preset part 94, the cloth rolling shaft 5 is driven to rotate to tighten or loosen the cloth rolling shaft 5 by rotating the preset part 94, a regulating structure for pre-tightening force of the cloth rolling shaft 5 is formed, and the regulated preset part 94 and the lower shell seat 91 are assembled and fixed to lock the cloth rolling shaft 5.

A shaft hole 92 is formed in the lower housing base 91, and engaging teeth 93 (helical teeth) having a bevel structure on one side are formed on the bottom surface of the lower housing base 91 around the shaft hole 92; the preset part 94 comprises a chassis 95 and a connecting column 97, the connecting column 97 is connected to the center of the chassis 95 to form an inverted T-shaped structure, meshing teeth 96 matched with the bottom surface of the lower shell seat 91 are arranged on the upper surface of the chassis 95 around the connecting column 97, the connecting column 97 penetrates through the shaft hole 92 to be connected and fixed with the cloth rolling shaft 5, the meshing teeth 96 of the preset part 93 are meshed and fixed with the meshing teeth 93 of the lower shell seat 91 by locking and fixing the chassis 95 and the lower shell seat 91, and an adjustable locking structure for the cloth rolling shaft 5 is formed. For example, clockwise rotation may be set as pre-tightening and counterclockwise rotation may be set as pre-loosening. The screen cloth 8 can be pulled out only by larger pulling force after the pre-tightening, and the screen cloth 8 can be pulled out only by smaller pulling force after the pre-tightening, so that the requirements of users can be met.

Three fixing lugs 98 are arranged on the edge of the chassis 95, the three fixing lugs 98 are uniformly arranged along the edge of the chassis 95, and after the pre-tightening force is adjusted, the three fixing lugs 98 penetrate through screws to be locked and fixed with the lower shell 91.

The locking mechanism comprises a locking piece 2 and a coupling piece 3, the locking piece 2 and the coupling piece 3 are arranged in an upper shell seat 10 of the upper fixed seat 1 together, the coupling piece 3 is arranged in the locking piece 2, and the upper end of the cloth rolling shaft 5 is connected with the coupling piece 3 to form a synchronous rotating structure; the locking piece 2 and the coupling piece 3 are provided with embedded interlocking structures, the coupling piece and the locking piece are locked to form a fixed structure by embedding the interlocking structures into each other, and the coupling piece 3 and the locking piece 2 are unlocked to form a rotatable structure of the coupling piece by separating the interlocking structures from each other; a knob 4 which extends out of the upper shell seat 10 to be pressed and rotated by hands is arranged on the locking piece 2, and the locking piece 2 and the coupling piece 3 are mutually embedded and locked when the knob 4 is pressed down; when the knob 4 is lifted, the locking piece 2 and the coupling piece 3 are in an unlocking state of being disengaged from each other.

The embedded interlocking structure comprises a latch structure 21 arranged on the lower inner side surface of the locking piece 2 and provided with concave-convex intervals, and a latch structure 31 arranged on the outer side surface of the coupling piece 3 and provided with concave-convex intervals, wherein the latch structure 21 of the locking piece 2 and the latch structure 31 of the coupling piece 3 are matched structures which can be embedded into each other; a spring 19 is arranged between the locking piece 2 and the coupling piece 3, and the locking piece 2 is jacked up through the spring 19 so that the coupling piece 3 is separated from the locking piece 2 to realize unlocking.

A plurality of vertical clamping grooves 14 are formed in the inner wall of the upper shell seat 10, clamping blocks 22 matched with the clamping grooves 14 are arranged on the outer wall of the locking piece 2, and the locking piece 2 is embedded into the clamping grooves 14 through the clamping blocks 22 to be combined and fixed with the upper shell seat 10.

A circle of locking sliding edges 11 are further arranged in the upper shell seat 10, at least one group of locking grooves are arranged on the locking sliding edges 11, each locking groove comprises a deep groove 12 and a shallow groove 13 (the depth and the depth are relative and do not refer to specific numerical values), the depth of the shallow groove 13 is smaller than that of the deep groove 12, and a distance (namely the rotating span of the knob 4) is arranged between the deep groove 12 and the shallow groove 13; a positioning block 41 matched with the locking groove is arranged on the outer wall of the knob 4, when the knob 4 rotates to the position that the positioning block 41 is opposite to the deep groove 12, the spring 19 jacks up the locking piece 2 to enable the positioning block 41 to be clamped into the deep groove 12, and an unlocking structure of the coupling piece 3 and the locking piece 2 is formed; when the positioning block 41 is released from the deep groove 12, the knob 4 presses the locking element 2 downwards to be clamped with the coupling element 3 to form a locking structure. Compared with the locking structure of the existing safe telescopic door sill, the locking structure is simpler and more practical, and is very convenient to assemble.

The middle of the coupling member 3 is provided with a shaft clamping arm 32, the upper end of the cloth winding shaft 5 is provided with an inserting groove 51, the cloth winding shaft 5 is combined and fixed with the coupling member 3 by clamping the shaft clamping arm 32 into the inserting groove 51, and the bottom of the upper fixing seat 1 is covered by a bottom cover 6. The coupling is simple and effective, the cloth beam 5 is rotated, the coupling member 3 is rotated together by the shaft-locking arm 32, and if the coupling member 3 is locked, the cloth beam 5 cannot be rotated by the shaft-locking arm 32.

A fixing plate 15 for fixing the whole upper fixing seat 1 is arranged at the rear part of the upper shell seat 10 in a sliding fit mode, a fixing box 16 is arranged in the upper shell seat 10, a pressure spring 18 is arranged in the fixing box 16, a sliding block 17 is arranged on the fixing box 16 in a sliding mode, the tail end of the sliding block 17 abuts against the pressure spring 18, and the sliding block 17 is ejected out due to the elasticity of the pressure spring 18 in a natural state to clamp the bottom edge of the fixing plate 15 to form an assembling structure for the fixing plate 15. When the fixing plate 15 is to be disassembled, the sliding block 17 is only required to be buckled by fingers and slides towards the direction far away from the fixing plate 15, the fixing plate 15 can be loosened by the sliding block 17, the fixing plate 15 can be taken out at the moment, and the assembly and the disassembly are very convenient.

Two support rods 7 are arranged between the upper fixing seat 1 and the lower fixing seat 9, and the two support rods 7 are parallel to each other; the tradition generally only adopts a bracing piece, and intensity is high inadequately, and the great children of strength may push away bad bracing piece, can solve this problem after increasing a bracing piece 7. The two support rods 7 are provided with movable fixed seats 71 capable of moving up and down along the support rods 7, and a fixed structure for the middle position of the safe telescopic door sill is formed through the movable fixed seats 71. When the safety telescopic door sill is high in height, the middle stability is insufficient due to the fact that only the upper fixing point and the lower fixing point are arranged, and the safety telescopic door sill is easy to be damaged by pushing. And after the movable fixed seat 71 is arranged in the middle, the middle of the door sill can be stably fixed.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the scope of the invention, i.e. the present invention is intended to cover all equivalent variations and modifications within the scope of the present invention.

Claims

1. A safe telescopic door sill which is more convenient to use comprises a mesh, a cloth rolling shaft, an upper fixing seat and a lower fixing seat, wherein the cloth rolling shaft with a spring inside is assembled between the upper fixing seat and the lower fixing seat; go up to be provided with locking mechanism in the fixing base, the batching axle is connected its characterized in that with locking mechanism: the lower fixing seat comprises a lower shell seat and a pre-adjusting piece, the lower end of the cloth rolling shaft is fixedly connected with the pre-adjusting piece, the pre-adjusting piece is rotated to drive the cloth rolling shaft to rotate so as to tighten or loosen the cloth rolling shaft, an adjusting structure for pre-tightening force of the cloth rolling shaft is formed, and the pre-adjusting piece after adjustment is assembled and fixed with the lower shell seat so as to lock the cloth rolling shaft.

2. A more convenient to use safety retractable door sill as claimed in claim 1 wherein: a shaft hole is arranged in the lower shell seat, and the bottom surface of the lower shell seat is provided with an occlusion tooth with one side in an inclined plane structure around the shaft hole; the preset part comprises a chassis and a connecting column, the connecting column is connected to the center of the chassis to form an inverted T-shaped structure, the upper surface of the chassis is provided with occlusion teeth matched with the bottom surface of the lower shell seat around the connecting column, the connecting column penetrates through a shaft hole to be connected and fixed with the cloth rolling shaft, and the occlusion teeth of the preset part are occluded and fixed with the occlusion teeth of the lower shell seat by locking and fixing the chassis and the lower shell seat to form an adjustable locking structure for the cloth rolling shaft.

3. A more convenient to use safety retractable door sill as claimed in claim 2, wherein: the edge of the chassis is provided with three fixing lugs, the three fixing lugs are evenly arranged along the edge of the chassis and pass through the fixing lugs through screws to be locked and fixed with the lower shell seat.

4. A more convenient to use safety retractable door sill as claimed in claim 1 wherein: the locking mechanism comprises a locking piece and a coupling piece, the locking piece and the coupling piece are arranged in an upper shell seat of the upper fixed seat together, the coupling piece is arranged in the locking piece, and the upper end of the cloth rolling shaft is connected with the coupling piece to form a synchronous rotating structure; the interlocking structure is mutually embedded to lock the coupling piece and the locking piece to form a fixed structure, and the interlocking structure is mutually separated to unlock the coupling piece and the locking piece to form a rotatable structure of the coupling piece; a knob which extends out of the upper shell seat so as to be pressed and rotated by hands is arranged on the locking piece, and the locking piece and the coupling piece are pushed to be mutually embedded and locked when the knob is pressed down; when the knob is lifted, the locking piece and the coupling piece are in an unlocking state of mutual separation.

5. A more convenient to use safety retractable door sill as claimed in claim 4, wherein: the embedded interlocking structure comprises a latch structure which is arranged on the inner side surface of the lower part of the locking piece and has concave-convex intervals, and a latch structure which is arranged on the outer side surface of the coupling piece and has concave-convex intervals, and the latch structure of the locking piece and the latch structure of the coupling piece are matched structures which can be embedded with each other; a spring is arranged between the locking piece and the coupling piece, and the locking piece is jacked up through the spring to enable the coupling piece to be separated from the locking piece to achieve unlocking.

6. A more convenient to use safety retractable door sill as claimed in claim 5, wherein: the inner wall of the upper shell seat is provided with a plurality of vertical clamping grooves, the outer wall of the locking piece is provided with a clamping block matched with the clamping grooves, and the locking piece is embedded into the clamping grooves through the clamping block to be fixedly combined with the upper shell seat.

7. A more convenient to use safety retractable door sill as claimed in claim 6, wherein: the upper shell seat is also provided with a circle of locking sliding edges, the locking sliding edges are provided with at least one group of locking grooves, each locking groove comprises a deep groove and a shallow groove, the depth of each shallow groove is smaller than that of each deep groove, and a distance is reserved between each deep groove and each shallow groove; a positioning block matched with the locking groove is arranged on the outer wall of the knob, and when the knob rotates to the position that the positioning block is opposite to the deep groove, the locking piece is jacked up through a spring to clamp the positioning block into the deep groove, so that an unlocking structure of the coupling piece and the locking piece is formed; when the positioning block is separated from the deep groove, the knob presses down the locking piece to be clamped with the coupling piece to form a locking structure.

8. A more convenient to use safety retractable door sill as claimed in claim 6, wherein: the middle of the coupling part is provided with a shaft clamping arm, the upper end of the cloth rolling shaft is provided with an inserting groove, the cloth rolling shaft is clamped into the inserting groove through the shaft clamping arm to be combined and fixed with the coupling part, and the bottom of the upper fixing seat is covered by a bottom cover.

9. A more convenient to use safety retractable door sill as claimed in claim 4, wherein: a fixing plate for fixing the whole upper fixing seat is arranged at the rear part of the upper shell seat in a sliding fit mode, a fixing box is arranged in the upper shell seat, a pressure spring is arranged in the fixing box, a sliding block is arranged on the fixing box in a sliding mode, the tail end of the sliding block abuts against the pressure spring, and the sliding block is ejected out by the pressure spring to clamp the bottom edge of the fixing plate in a natural state, so that an assembling structure for the fixing plate is formed.

10. A more convenient to use safety retractable door sill as claimed in claim 1 wherein: two support rods are arranged between the upper fixing seat and the lower fixing seat and are parallel to each other; the two support rods are provided with movable fixed seats which can move up and down along the support rods, and the movable fixed seats form a fixed structure for the middle position of the safe telescopic door sill.