Door and window wind brace with adjustable resistance

Abstract

The utility model relates to the technical field of doors and windows, in particular to a door and window wind brace with adjustable resistance. The device comprises a wind supporting rod and a sliding block rotationally connected with the wind supporting rod, the end, located in the sliding direction, of the sliding block is divided into two outwards-expanding parts from the middle, the opposite sides of the two outwards-expanding parts are provided with first sliding grooves in the sliding direction, the opposite sides of the two outwards-expanding parts are provided with first inclined faces contracting inwards, and an adjusting block is arranged between the two outwards-expanding parts. Second inclined faces abutting against the close first inclined faces in a matched mode are arranged on the two side faces of the adjusting block, and an adjusting mechanism capable of promoting the adjusting block to be close to or away from the sliding block is arranged on the side, facing the door and window sash, of the adjusting block. After the prior art is improved, the resistance of the door and window wind brace can be adjusted, the operation is simple and convenient, and the stability is better.

Description

TECHNICAL FIELD

[0001] The utility model relates to door and window technical field especially relates to a door and window wind brace of adjustable resistance. BACKGROUND

[0002] Door and window are indispensable components in buildings, not only play the role of ventilation, lighting, but also have important influence on the overall appearance and safety of the building. With the progress of science and technology and the improvement of people's living standards, people put forward higher requirements on the functionality and comfort of doors and windows. Among them, the door and window wind brace as an important auxiliary device can not only ensure the normal use of doors and windows, but also effectively prevent the damage of doors and windows caused by strong wind and improve the service life.

[0003] For example, the Chinese patent document with publication number CN219654507U discloses a kind of outside-hung window opening angle limiting wind brace with quick release function, including wind brace sliding slot, sliding block, fastening bolt, quick release bolt, wind brace rod, wind brace sliding slot is installed on window main frame, sliding block is slidably arranged in wind brace sliding slot and is fixed by fastening bolt, one end of wind brace rod is movably connected to sliding block, the other end is movably connected to window sash, and wind brace rod and sliding block are quickly disassembled by quick release bolt between them. Since the sliding block and the wind brace sliding slot are fixed by the fastening bolt, when the wind brace resistance needs to be adjusted after installation, the bolts and nuts on both sides of the wind brace sliding slot need to be adjusted, which is very inconvenient to operate, and the fastening bolt can be loose after long-term use, resulting in instability.

[0004] Therefore, it is necessary to improve the deficiencies of the above prior art. SUMMARY

[0005] The technical problem to be solved by the utility model lies in the deficiencies of the above prior art, providing a kind of door and window wind brace of adjustable resistance, to solve the problem of inconvenient operation when adjusting the wind brace resistance in prior art and instability after long-term use.

[0006] To achieve the above purpose, the utility model provides the following technical scheme: a kind of door and window wind brace of adjustable resistance, including wind brace rod, sliding block rotationally connected with wind brace rod, the end of sliding block in sliding direction is bifurcated into two outer parts from middle part, the opposite side of two outer parts is equipped with the first sliding slot along the sliding direction, and the opposite side is equipped with the first inclined surface that is inwards contracted, adjusting block is equipped between two outer parts, the second inclined surface that is matched with the first inclined surface close to is equipped on the two side faces of adjusting block, the adjusting mechanism that can promote adjusting block close to or away from sliding block is equipped on the side of adjusting block facing window sash.

[0007] When the resistance of the door and window wind brace needs to be adjusted, the adjusting mechanism located on the side of the adjusting block facing the door and window leaf (i.e., the side of the door and window frame close to the door and window leaf) is used to change the distance between the adjusting block and the sliding block. When the adjusting block is close to the sliding block, the second inclined surface of the adjusting block extrudes the first inclined surface of the two lateral expansion parts, so that the lateral expansion parts are expanded outward, and the first sliding groove on the outer side of the lateral expansion part and the edge of the wind brace sliding groove on the door and window frame are more tightly clamped, thereby increasing the friction resistance between the sliding block and the edge of the wind brace sliding groove. Inversely, the resistance is reduced. Since the adjusting mechanism only needs to be operated on the side of the door and window frame close to the door and window leaf, the operation is more simple and convenient, and the stability of the sliding block and the edge of the wind brace sliding groove is better through the clamping and limiting of the first sliding groove.

[0008] The adjusting mechanism includes a screw threadedly connected with the sliding block and a through hole provided on the adjusting block along the sliding direction of the sliding block. The screw can be gap-fitted through the through hole and the screw head can be abutted with the side surface of the adjusting block. The side surface of the sliding block is provided with an internal thread hole threadedly connected with the screw.

[0009] When the resistance of the door and window wind brace needs to be adjusted, the adjusting mechanism located on the side of the adjusting block facing the door and window leaf (i.e., the side of the door and window frame close to the door and window leaf) is used to change the distance between the adjusting block and the sliding block. When the adjusting block is close to the sliding block, the second inclined surface of the adjusting block extrudes the first inclined surface of the two lateral expansion parts, so that the lateral expansion parts are expanded outward, and the first sliding groove on the outer side of the lateral expansion part and the edge of the wind brace sliding groove on the door and window frame are more tightly clamped, thereby increasing the friction resistance between the sliding block and the edge of the wind brace sliding groove. Inversely, the resistance is reduced. Since the adjusting mechanism only needs to be operated on the side of the door and window frame close to the door and window leaf, the operation is more simple and convenient, and the stability of the sliding block and the edge of the wind brace sliding groove is better through the clamping and limiting of the first sliding groove.

[0010] The middle part of the first inclined surface is provided with a second sliding groove, and the middle part of the second inclined surface is provided with a limiting protrusion strip matched with the first sliding groove. The limiting protrusion strip can slide along the second sliding groove.

[0011] When the adjusting block moves relative to the sliding block, the limiting protrusion strip is limited to slide in the second sliding groove, so that the movement process is smoother and the stability is improved.

[0012] The side of the adjusting block facing the door and window leaf is provided with a mounting groove in communication with the through hole for mounting the screw. The end of the mounting groove away from the through hole is provided with a limiting groove capable of limiting the screw head of the screw.

[0013] The screw head is hidden in the mounting groove, which is not only beautiful but also avoids the situation that the adjusting block is stuck when the screw is rotated and displaced.

[0014] The middle part of the first sliding groove close to the sliding block is provided with a third inclined surface extending to the slot.

[0015] The third inclined surface of the first sliding groove close to the middle part of the sliding block can abut against the edge of the wind brace sliding groove when the outer expansion part is close to the middle part, and has a smooth transition effect.

[0016] The further arrangement of the technical scheme is that the wind brace rod is provided with a mounting hole at the end away from the sliding block.

[0017] The further arrangement of the technical scheme is that the wind brace rod is provided with a mounting hole at the end away from the sliding block.

[0018] The further arrangement of the technical scheme is that the wind brace rod is provided with a mounting hole at the end away from the sliding block.

[0019] The further arrangement of the technical scheme is that the wind brace rod is provided with a mounting hole at the end away from the sliding block.

[0020] The further arrangement of the technical scheme is that the wind brace rod is provided with a mounting hole at the end away from the sliding block. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is a structural schematic diagram of an embodiment of the utility model;

[0022] Figure 2 is an exploded structural schematic diagram of an embodiment of the utility model;

[0023] Figure 3 is a structural schematic diagram of a sliding block in an embodiment of the utility model;

[0024] Figure 4 is a structural schematic diagram of an adjusting block in an embodiment of the utility model.

[0025] Marked in the figure: 1-wind brace rod, 10-mounting hole, 2-sliding block, 20-internal thread hole, 21-outer expansion part, 22-first sliding groove, 221-third inclined surface, 23-first inclined surface, 230-second sliding groove, 3-adjusting block, 30-through hole, 31-second inclined surface, 311-limiting convex strip, 32-mounting slot, 320-limiting slot, 4-screw. DETAILED DESCRIPTION

[0026] The technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0027] As Figures 1-4 The adjustable resistance door and window wind brace comprises a wind brace rod 1, a sliding block 2 rotatably connected with the wind brace rod 1 through a rivet, both ends of the sliding block 2 in the sliding direction are bifurcated into two outward extending parts 21 from the middle part, the opposite sides of the two outward extending parts 21 of the same end are respectively provided with a first sliding groove 22 along the sliding direction and a first inclined surface 23 which is inwardly retracted, an adjusting block 3 is arranged between the two outward extending parts 21, the two side surfaces of the adjusting block 3 are provided with a second inclined surface 31 which is matched with and abuts against the proximal first inclined surface 23, the side of the adjusting block 3 facing the door and window fan is provided with an adjusting mechanism which can make the adjusting block 3 approach or move away from the sliding block 2, the adjusting mechanism comprises a screw 4 which is threadedly connected with the sliding block 2 and a through hole 30 arranged on the adjusting block 3 along the sliding direction of the sliding block 2, the screw 4 can be gap-fitted with the adjusting block 3 through the through hole 30 and the head of the screw 4 can abut against the side surface of the adjusting block 3, the side surface of the sliding block 2 is provided with an internal thread hole 20 which is threadedly connected with the screw 4, the middle part of the first inclined surface 23 is provided with a second sliding groove 230, the middle part of the second inclined surface 31 is provided with a limiting convex strip 311 which is matched with the first sliding groove 22, the limiting convex strip 311 can slide along the second sliding groove 230, the side of the adjusting block 3 facing the door and window fan is provided with a mounting groove 32 which is communicated with the through hole 30 and is used for mounting the screw 4, the end of the mounting groove 32 away from the through hole 30 is provided with a limiting groove 320 which can limit the screw head of the screw 4, the middle part end of the first sliding groove 22 close to the sliding block 2 is provided with a third inclined surface 221 which extends to the groove, and the end of the wind brace rod 1 away from the sliding block 2 is provided with a mounting hole 10.

[0028] In the above embodiment, when the resistance of the door and window wind brace needs to be adjusted, the distance between the adjusting block 3 and the sliding block 2 is adjusted by the screw 4 located on the side of the adjusting block 3 facing the door and window fan (i.e. the side of the door and window frame close to the door and window fan), when the adjusting block 3 approaches the sliding block 2, the second inclined surface 31 of the adjusting block 3 extrudes the first inclined surface 23 of the outward extending part 21 on both sides to make the outward extending part 21 outwardly extend, then the first sliding groove 22 on the outer side of the outward extending part 21 and the edge of the wind brace sliding groove on the door and window frame are more tightly clamped, so that the frictional resistance between the sliding block 2 and the edge of the wind brace sliding groove can be increased, and the resistance is reduced by reverse operation; since the adjusting mechanism only needs to be operated on the side of the door and window frame close to the door and window fan, the operation is more simple and convenient, and the stability of the sliding block 2 and the edge of the wind brace sliding groove through the clamping and limiting mode of the first sliding groove 22 is better.

Claims

1. A resistance-adjustable door and window wind bracing device, comprising a wind bracing rod and a sliding block rotatably connected with the wind bracing rod, characterized in that: The end of the sliding block in the sliding direction is bifurcated into two outward extending parts, the opposite sides of the two outward extending parts are respectively provided with a first sliding groove along the sliding direction, and the opposite sides are respectively provided with a first inwardly converging inclined surface, an adjusting block is arranged between the two outward extending parts, the two side surfaces of the adjusting block are provided with a second inclined surface matched with the adjacent first inclined surface, and the side of the adjusting block facing the door and window leaf is provided with an adjusting mechanism capable of moving the adjusting block closer to or further away from the sliding block.

2. A resistance adjustable door and window stay according to claim 1, characterised in that: The adjusting mechanism comprises a screw threadedly connected with the sliding block and a through hole arranged on the adjusting block along the sliding direction of the sliding block, the screw can be matched with the adjusting block through the through hole, the screw head can be in abutment with the side surface of the adjusting block, and the side surface of the sliding block is provided with an internal thread hole threadedly connected with the screw.

3. A resistance adjustable door and window stay according to claim 2, characterised in that: The middle part of the first inclined surface is provided with a second sliding groove, the middle part of the second inclined surface is provided with a limiting convex strip matched with the first sliding groove, and the limiting convex strip can slide along the second sliding groove.

4. A resistance adjustable door and window stay according to claim 3, wherein: The side of the adjusting block facing the door and window leaf is provided with a mounting groove in communication with the through hole for mounting the screw, and the end of the mounting groove away from the through hole is provided with a limiting groove capable of limiting the screw head of the screw.

5. A resistance adjustable door and window stay according to claim 4, characterised in that: The middle part of the first sliding groove is provided with a third inclined surface extending to the groove.

6. A resistance adjustable door and window stay according to claim 5, wherein: The end of the wind support rod away from the sliding block is provided with a mounting hole.

7. A resistance adjustable window and door stay according to any one of claims 1 to 6, wherein: The two ends of the sliding block along the sliding direction are provided with outward extending parts and adjusting blocks.

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