Outward-opening lower suspension supporting arm
By having the slider slide within the linear track and engage with the V-groove, the problem of poor stability in existing support arms is solved, enabling smooth opening and closing of the window sash.
Patent Information
- Application Number
- CN202520403457.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-07
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2035-03-07
AI Technical Summary
The existing support arm's limiting and sliding components are on the same plane, resulting in poor stability, easy jamming, and uneven window opening.
It adopts a combination of slider sliding, linear slide and V-groove structure. The slider slides back and forth in the linear slide, and the smooth transition is achieved by the cooperation of the positioning post and V-groove, reducing interference and jamming.
Smoother sliding, longer lifespan of support components, and no jamming during window opening and closing.
Smart Images
Figure CN223854056U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of door and window hardware, especially to a outward opening and downward hanging support arm. BACKGROUND
[0002] The support arm is used for connecting the sash and the window frame to realize the outward opening, downward hanging and closing actions of the sash in the window frame and the mutual conversion among the three actions.
[0003] The current support arm utilizes the main support rod to pull the sliding part to slide along the sliding groove. The rotating part is rotatably installed at the bottom of the sliding groove. The sliding part is provided with a first opening groove. The opposite two side walls of the first opening groove extend the first and second extension parts at a certain distance. The first extension part is provided with a second opening groove. The rotating part is provided with a first clamping groove. During the process of the sash from closing to hanging open, the second extension part can push the rotating part to rotate along the direction of the first extension part. When the first clamping groove is clamped on the first groove wall of the second opening groove, the sliding part is tightly clamped and cannot slide automatically. That is, when the sash moves, the ratchet wheel will rotate, and then the cooperation between the ratchet wheel and the pawl is used to realize the support of the sash. Even if the sash itself is heavy or is blown by strong wind, the sash will not automatically close unexpectedly.
[0004] However, in the above-mentioned implementation, the limiting part and the sliding part of the outward opening support arm are essentially in the same plane, which results in too many sliding parts in the same plane, and the possibility of mutual jamming after use is greater, that is, the stability of the support rocker arm is poor, and the sash opening is not smooth. UTILITY MODEL CONTENTS
[0005] In order to overcome the shortcomings of the prior art, the utility model provides an outward opening and downward hanging support arm.
[0006] The utility model adopts the following technical scheme: an outward opening and downward hanging support arm, including base sheet, one end of base sheet is equipped with first rotation part, the other end of base sheet is equipped with second rotation part, one end of second rotation part is rotatably connected on base sheet, rotatable connection has support sheet between the other end of second rotation part and base sheet, second rotation part includes second installation sheet, be equipped with pull-out sheet on second installation sheet, pull-out sheet removes along the length direction of second rotation part, the bottom of second installation sheet is equipped with outward opening support piece, outward opening support piece is connected with base sheet and outward opening support piece slides when base sheet moves.
[0007] The outer opening support comprises a straight sliding track arranged on the back of the second mounting sheet, the straight sliding track is arranged along the length direction of the second mounting sheet, a sliding block is arranged in the straight sliding track, the sliding block is clamped in the straight sliding track, the sliding block is rotatably connected with the end of the base sheet, and the sliding block reciprocally slides in the straight sliding track when the second mounting sheet rotates.
[0008] The sliding block is provided with a receiving cavity, a supporting piece is rotatably connected in the receiving cavity, the second mounting sheet is provided with a positioning column, and the positioning column is inserted into the receiving cavity from the end of the receiving cavity and abuts against the supporting piece when the sliding block slides to one end of the straight sliding track.
[0009] The supporting piece comprises a rotating sheet rotatably connected in the receiving cavity, the end of the rotating sheet is provided with a first V-shaped groove and a second V-shaped groove, a pair of abutting grooves are arranged on the side wall of the receiving cavity, and the side wall of the first V-shaped groove and the side wall of the second V-shaped groove abut in the corresponding abutting grooves when the rotating sheet rotates.
[0010] The first rotating part comprises a first folding sheet rotatably connected with the end of the base sheet, one end of the first folding sheet is rotatably connected with the base sheet, the other end of the first folding sheet is rotatably connected with a fixed sheet, the end surface of the fixed sheet is provided with a reinforcing sheet, one end of the reinforcing sheet is rotatably connected with the base sheet, the other end of the reinforcing sheet is provided with an adjusting waist hole, the adjusting waist hole and the base sheet are connected through a rivet, and the reinforcing sheet reciprocally moves along the adjusting waist hole when the fixed sheet rotates.
[0011] The base sheet is provided with a locking waist hole, the pulling sheet is fixed with a locking column, and the locking column is inserted into or withdrawn from the locking waist hole when the pulling sheet moves.
[0012] The base sheet comprises a first base sheet and a second base sheet connected in stages, the first base sheet and the second base sheet are connected through a transition surface, the second base sheet is higher than the first base sheet, the locking waist hole is arranged on the transition surface and extends to the first base sheet and the second base sheet, and the locking column is inserted into and abuts against the end of the locking waist hole when the pulling sheet moves from the first base sheet to the second base sheet.
[0013] The pulling sheet is provided with a giving-up groove along the length direction of the pulling sheet.
[0014] Compared with the prior art, the sliding block slides, the interference in the sliding process is reduced, the sliding is smoother, and the service life of the support is longer. When the outer opening of the opening fan is opened, the sliding block moves, the first V-shaped groove and the second V-shaped groove are switched, and the outer opening and closing of the opening fan are realized. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 is the structural schematic diagram of the support arm in the utility model, and
[0016] Figure 2 is the first rotating part structural schematic diagram of the support arm in the utility model, and
[0017] Figure 3 is the second rotating part structural schematic diagram of the support arm in the utility model, and
[0018] Figure 4 is the outer opening support structural schematic diagram of the support arm in the utility model, and
[0019] In the figure: 1, base sheet; 11, first base sheet; 12, second base sheet; 13, locking waist hole; 14, locking column; 15, pull-out sheet; 2, first rotating part; 21, first folding sheet; 22, fixed sheet; 23, adjusting waist hole; 24, reinforcing sheet; 3, second rotating part; 31, second mounting sheet; 32, outer opening support; 321, straight line slide; 322, sliding block; 323, accommodating cavity; 324, rotating sheet; 3241, first V groove; 3242, second V groove; 325, positioning column; 326, abutting groove; 4, support sheet. DETAILED DESCRIPTION
[0020] In the following, the utility model is further described in combination with the drawings and specific embodiments, and it should be noted that, under the condition of not conflicting, the following described embodiments or technical features between each other can be combined to form new embodiments.
[0021] Referring to Figures 1-2 , an outer opening and under-suspension support arm, comprising a base sheet 1, one end of the base sheet 1 is provided with a first rotating part 2, the other end of the base sheet 1 is provided with a second rotating part 3, one end of the second rotating part 3 is rotatably connected to the base sheet 1, and the other end of the second rotating part 3 is rotatably connected with the base sheet 1 and is provided with a support sheet 4, the second rotating part 3 comprises a second mounting sheet 31, the second mounting sheet 31 is provided with a pull-out sheet 15, the pull-out sheet 15 moves along the length direction of the second rotating part 3, the bottom of the second mounting sheet 31 is provided with an outer opening support 32, the outer opening support 32 is connected with the base sheet 1 and slides when the base sheet 1 moves.
[0022] The base sheet 1 is the mounting base of the whole support arm in this embodiment. The first rotating part 2 is at one end of the base sheet 1, and the first rotating part 2 is at a right angle with the base sheet 1 when the first rotating part 2 is fully opened, so as to realize the flat opening rotation of the opening fan. A locking waist hole 13 is formed on the base sheet 1, and a locking column 14 is fixed on the pull-out sheet 15. The locking column 14 is inserted into or withdrawn from the locking waist hole 13 when the pull-out sheet 15 moves. Specifically, the base sheet 1 includes a first base sheet 11 and a second base sheet 12 connected in stages. The first base sheet 11 and the second base sheet 12 are connected through a transition surface. The second base sheet 12 is higher than the first base sheet 11. The locking waist hole 13 is formed on the transition surface and extends to the first base sheet 11 and the second base sheet 12. When the pull-out sheet 15 moves from the first base sheet 11 to the second base sheet 12, the locking column 14 is inserted into and abuts against the end of the locking waist hole 13. When the locking column 14 is inserted into the locking waist hole 13 and abuts against the second base sheet 12, the first rotating part 2 cannot be actuated, that is, it is in a locked state. A displacement slot is formed on the pull-out sheet 15 along the length direction of the pull-out sheet 15. There is a blocking column on the base sheet 1, which is inserted into a limiting waist hole, so as to limit the stroke of the pull-out sheet 15.
[0023] In this embodiment, the first rotating part 2 includes a first folding sheet 21 rotatably connected to the end of the base sheet 1. One end of the first folding sheet 21 is rotatably connected to the base sheet 1, and the other end of the first folding sheet 21 is rotatably connected to a fixed sheet 22. A reinforcing sheet 24 is arranged on the end face of the fixed sheet 22. One end of the reinforcing sheet 24 is rotatably connected to the base sheet 1, and the other end of the reinforcing sheet 24 is provided with an adjusting waist hole 23. The adjusting waist hole 23 is connected to the base sheet 1 through a rivet. When the fixed sheet 22 rotates, the reinforcing sheet 24 moves back and forth along the adjusting waist hole 23. The reinforcing sheet 24 is mainly used to enhance the strength of the fixed sheet 22.
[0024] In this embodiment, the outer opening support 32 includes a straight sliding channel 321 arranged on the back of the second mounting sheet 31. The straight sliding channel 321 is arranged along the length direction of the second mounting sheet 31. A sliding block 322 is arranged in the straight sliding channel 321. The sliding block 322 is clamped in the straight sliding channel 321. The sliding block 322 is rotatably connected to the end of the base sheet 1. When the second mounting sheet 31 rotates, the sliding block 322 slides back and forth in the straight sliding channel 321. The sliding block 322 is provided with a receiving cavity 323. A supporting piece is rotatably connected in the receiving cavity 323. The second mounting sheet 31 is provided with a positioning column 325. When the sliding block 322 slides to one end of the straight sliding channel 321, the positioning column 325 is inserted into the receiving cavity 323 from the end of the receiving cavity 323 and abuts against the supporting piece. The supporting piece includes a rotating sheet 324 rotatably connected in the receiving cavity 323. The end of the rotating sheet 324 is provided with a first V-shaped groove 3241 and a second V-shaped groove 3242. A pair of abutting grooves 326 are formed on the side wall of the receiving cavity 323. When the rotating sheet 324 rotates, the side walls of the first V-shaped groove 3241 and the second V-shaped groove 3242 abut against the corresponding abutting grooves 326.
[0025] Compared with the prior art, in the use process, when the opening fan needs to be opened outward, the pull-out piece 15 is first pulled to a position away from the second base piece 12, and then the outward opening support part can be rotated, at this time, the opening fan can be pushed to rotate, the sliding block 322 slides when the opening fan is opened outward, the rotating piece 324 is driven to move towards the positioning column 325, and the positioning column 325 is inserted into the first V groove 3241 or the second V groove 3242 for support. The sliding action in the whole process is at the bottom of the base plate, so that the sliding is more smooth, and the phenomenon of jamming basically does not exist.
[0026] The above-mentioned embodiments are only preferred embodiments of the utility model, and cannot be used to limit the range of protection of the utility model, and any non-substantial changes and replacements made by the person skilled in the art on the basis of the utility model all belong to the range of protection required by the utility model.
Claims
1. An outward-opening underhung support arm, comprising a base piece, one end of the base piece being provided with a first rotating part, the other end of the base piece being provided with a second rotating part, one end of the second rotating part being rotatably connected to the base piece, a support piece being rotatably connected between the other end of the second rotating part and the base piece, characterized in that: The second rotating part comprises a second mounting sheet, a pull sheet is arranged on the second mounting sheet, the pull sheet moves along the length direction of the second rotating part, the bottom of the second mounting sheet is provided with an outward opening support, the outward opening support is connected with the base sheet and slides when the base sheet moves.
2. An out-swinging underslung support arm according to claim 1, wherein: The outward opening support comprises a linear slide arranged on the back of the second mounting sheet, the linear slide is arranged along the length direction of the second mounting sheet, a sliding block is arranged in the linear slide, the sliding block is clamped in the linear slide, the sliding block is rotationally connected with the end of the base sheet, and the sliding block reciprocally slides in the linear slide when the second mounting sheet rotates. The sliding block is provided with a receiving cavity, a supporting piece is rotationally connected in the receiving cavity, the second mounting sheet is provided with a positioning column, and the positioning column is inserted into the receiving cavity from the end of the receiving cavity and abuts against the supporting piece when the sliding block slides to one end of the linear slide.
3. An out-swinging underslung support arm according to claim 2, wherein: The supporting piece comprises a rotating sheet rotationally connected in the receiving cavity, the end of the rotating sheet is provided with a first V-shaped groove and a second V-shaped groove, a pair of abutting grooves are arranged on the side wall of the receiving cavity, and the side wall of the first V-shaped groove and the side wall of the second V-shaped groove abut against the corresponding abutting grooves when the rotating sheet rotates.
4. An out-swinging underslung support arm according to claim 1, wherein: The first rotating part comprises a first folding sheet rotationally connected with the end of the base sheet, one end of the first folding sheet is rotationally connected with the base sheet, the other end of the first folding sheet is rotationally connected with a fixed sheet, the end surface of the fixed sheet is provided with a reinforcing sheet, one end of the reinforcing sheet is rotationally connected with the base sheet, the other end of the reinforcing sheet is provided with an adjusting waist hole, the adjusting waist hole and the base sheet are connected through a rivet, and the reinforcing sheet reciprocally moves along the adjusting waist hole when the fixed sheet rotates.
5. An out-swinging underslung support arm according to claim 1, wherein: The base sheet is provided with a locking waist hole, the pull sheet is fixed with a locking column, and the locking column is inserted into or withdrawn from the locking waist hole when the pull sheet moves.
6. An out-swinging underslung support arm according to claim 5, wherein: The base sheet comprises a first base sheet and a second base sheet connected in stages, the first base sheet and the second base sheet are connected through a transition surface, the second base sheet is higher than the first base sheet, the locking waist hole is arranged on the transition surface and extends to the first base sheet and the second base sheet, and the locking column is inserted into and abuts against the end of the locking waist hole when the pull sheet moves from the first base sheet to the second base sheet.
7. An out-swinging underslung support arm according to claim 5, wherein: The pull sheet is provided with a gap slot along the length direction of the pull sheet.