CN216617234U

CN216617234U - Centered folding scissor arm hinge

Info

Publication number: CN216617234U
Application number: CN202122703522.6U
Authority: CN
Inventors: 刘宏; 齐红海
Original assignee: Tyson Construction Hardware Ningbo Co ltd
Current assignee: Tyson Construction Hardware Ningbo Co ltd
Priority date: 2021-11-04
Filing date: 2021-11-04
Publication date: 2022-05-27
Anticipated expiration: 2031-11-04

Abstract

The utility model discloses a centered folding scissor arm hinge which comprises a first connecting rod, a second connecting rod, a scissor fork and a supporting short arm; the first connecting rod is used for fixing the integral structure; the scissors are connected on the two connecting rods in a sliding way, are formed by cross hinging of a plurality of stay bars, can be folded and stretched, and are used for opening and closing the hinges; the supporting short arm is hinged to the middle parts of the two connecting rods and is used for fixedly supporting the scissors; the second connecting rod is connected with the scissors fork in a sliding mode and is used for connecting loads such as window sashes. The centered folding scissor arm hinge can meet the application requirement of a larger opening distance when the width of a window sash is smaller, and meanwhile, the centered fixed supporting point enables the hinge to be stressed uniformly and has a stable structure, so that the practical application effect of heavy load and difficulty in damaging the hinge is realized.

Description

Centered folding scissor arm hinge

Technical Field

The utility model relates to a horizontal push hinge of a horizontal push window, in particular to a centered folding scissor arm hinge.

Background

The horizontal sliding hinge is a key structure of a horizontal sliding window, and the horizontal sliding window is a window which is provided with the horizontal sliding hinge and can move a window sash along the normal direction of the vertical surface where the window sash is located.

Present flat push hinge is mostly single fork arm structure, and the switching distance of this structure receives the length restriction of flat push hinge itself, and the flat push hinge leads to distortion because of the atress is inhomogeneous easily moreover, and then the influence is opened and close. Chinese patent application publication No. CN209469190U, published as 2019, 10 and 08, entitled "folding horizontal sliding hinge and horizontal sliding window", discloses a horizontal sliding hinge structure, which is a folding horizontal sliding hinge structure, and has the advantages of reducing occupied space and avoiding hinge distortion. However, the two ends of the folding scissors fork part in the structure are hinged through one contact point, and the other contact point is connected in a sliding mode in an unstable mode, so that the folding scissors fork part is not beneficial to bearing heavy-weight window sashes, and is not beneficial to ensuring the use safety and the service life of the horizontal pushing hinge.

Disclosure of Invention

The utility model provides a centered folding scissor arm hinge structure, which has the characteristics of occupying a small space and obtaining a long service distance, and has the advantages of simple structure, stable support, heavy load and high safety.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a centered folding scissor arm hinge comprises a first connecting rod, a scissor fork and a supporting short arm; one end of the supporting short arm is hinged to the middle of the first connecting rod, the other end of the supporting short arm is hinged to the scissor fork, and one end of the scissor fork can move along the first connecting rod.

In the technical scheme, the first connecting rod is used as a fixed part, a supporting short arm is hinged to the first connecting rod, and a scissor fork is connected to the first connecting rod in a sliding mode. The supporting short arm is used as a supporting part of the whole device in the movement process, one end of the supporting short arm is hinged to the middle position of the first connecting rod, the other end of the supporting short arm is hinged to one supporting rod of the scissor fork, and in the opening and closing processes of the hinge, the supporting short arm part is always supported in the middle of the hinge. The scissors fork and the first connecting rod are connected in a sliding mode through the two sliding parts, and the two sliding parts slide in a centrosymmetric mode in an up-and-down mode in the opening and closing processes of the hinge.

Preferably, the scissors are hinged alternatively by a plurality of alternative strut tops to form a foldable structure. The cross and hinged connection enables the plurality of struts to form a collapsible scissor arm structure that provides space savings during opening and closing.

Preferably, the scissors are connected with the first connecting rod in a sliding mode through a sliding part, the purpose of retracting and releasing the hinge can be achieved, and when the sliding connecting point retracts inwards, the hinge extends and the window sash can be pushed out; when the four connecting points are unfolded outwards, the hinge is shortened, and the window sash can be retracted.

Preferably, the two sliding parts on the scissors fork slide up and down symmetrically around the center of the first connecting rod, so as to achieve the purpose of balancing the stress.

Preferably, a connecting line of the hinged position of the short supporting arm and the first connecting rod and the hinged position of the two supporting rods of the scissor fork is perpendicular to the first connecting rod, so that the hinge is stressed in a balanced manner in the opening and closing processes, and the hinge cannot be twisted or damaged.

Preferably, the scissors have a connecting structure symmetrical to the first connecting rod at one end far away from the first connecting rod, and the second connecting rod at the far end can be manually retracted and released or connected with a motor for retraction and release.

Preferably, damping screws are arranged at the sliding connection positions of the scissors forks, and limiting devices are arranged on the first connecting rod and the second connecting rod; the damping screw makes the sliding connection move more smoothly, and the limiting device can effectively control the maximum opening degree of the window sash, thereby being beneficial to the use safety.

The utility model has the beneficial effects that: (1) the supporting is stable, and the shearing fork symmetrically slides on the connecting rod by adding the centered supporting short arm, so that the whole structure is stressed more uniformly and supported more stably. (2) The structure is simple, and the foldable scissor arm type structure belongs to a common mechanical structure and is easy to process; (3) the characteristics of heavy load and uniform stress enable the utility model to bear larger weight; (4) high safety.

Drawings

Fig. 1 is a schematic structural view of the present invention.

In the figure: the connecting rod mechanism comprises a first connecting rod 1, a second connecting rod 2, a scissor fork 3, a supporting short arm 4, a first sliding part 301, a second sliding part 302, a first hinge point 401, a second hinge point 402 and a third hinge point 303.

Detailed Description

The utility model is further described with reference to the following figures and specific embodiments.

Example 1:

a central folding scissor arm hinge as shown in fig. 1 comprises a first connecting rod 1, a second connecting rod 2, a scissor fork 3 and a supporting short arm 4. The scissors 3 and the first connecting rod 1 are slidably connected through a first sliding member 301 and a second sliding member 302, and the sliding members can be selected from various types, such as sliding blocks, sliding groove devices, or sliding wheels, sliding rail devices, etc. The scissors fork 3 is formed by alternately hinging a plurality of support rods to form a foldable scissors fork structure.

The first connecting rod 1 is fixed in a wall body, the second connecting rod 2 is connected with a window sash at the far end, and the second connecting rod 2 can be driven by hand or a motor to horizontally move in the normal direction of the connected window sash. In the movement process of the second connecting rod 2, the connecting line of the first hinge point 401 and the third hinge point 303 is also in the same normal direction, so that the stress balance of the hinge can be ensured, and the hinge cannot be damaged or deformed due to the deviation of the stress line.

The opening and closing of the hinge is achieved by the first and second sliding

members

301 and 302 sliding up and down along the first connecting rod 1. When the first sliding member 301 and the second sliding member 302 slide toward the first hinge point 401, respectively, the hinge is extended and opened; when the first slide member 301 and the second slide member 302 slide in the direction away from the first hinge point 401, respectively, the hinge is shortened and closed. Damping screws are arranged at the first sliding part 301 and the second sliding part 302, so that the opening and closing of the hinge can be better controlled, and the opening and closing processes are smoother. And the first connecting rod 1 and the second connecting rod 2 are respectively provided with a limiting device, so that the maximum distance between the opening and the closing of the window sash can be effectively controlled, and the use safety is ensured.

The supporting short arm 4 is used as a supporting part and hinged in the middle of the whole hinge, when the hinge is extended and opened, one end of the supporting short arm rotates around a first hinge point 401, and the other end of the supporting short arm rotates around a second hinge point 402 along with the scissor fork and extends towards the direction far away from the first connecting rod 1; when the hinge is shortened and closed, one end of the short supporting arm rotates around the first hinge point 401, and the other end of the short supporting arm contracts towards the direction close to the first connecting rod 1 while rotating around the second hinge point 402 along with the scissor fork. In the whole movement process, the supporting short arm plays the roles of fixing and supporting and stabilizing the structure.

In order to balance and stabilize the structure, a supporting short arm 4 is also arranged at the second connecting rod 2. The second connecting rod 2 is connected with the scissors 3 in a sliding mode, the center of the second connecting rod 2 is hinged to one end of the supporting short arm 4, and the other end of the supporting short arm 4 is hinged to a supporting rod on the scissors 3. The scheme provided by the utility model can ensure the stability and safety of the hinge in the process that the window sash drives the whole hinge structure to open and close.

Claims

1. A middle folding scissor arm hinge is characterized by comprising a first connecting rod (1), a scissor fork (3) and a supporting short arm (4); one end of the supporting short arm (4) is hinged to the middle of the first connecting rod (1), the other end of the supporting short arm (4) is hinged to the scissor fork (3), and one end of the scissor fork (3) can move along the first connecting rod (1).

2. A centered folding scissor arm hinge according to claim 1 wherein the scissor (3) is hinged alternately by the top of a plurality of alternating stays, the hinge point of the supporting short arm (4) on one stay of the scissor (3) is the second hinge point (402) and the hinge point of the two stays closest to the first link (1) is the third hinge point (303).

3. A centered folding scissor arm hinge according to claim 1 or 2 wherein the scissor fork (3) is slidably connected to the first connecting rod (1) by a first sliding member (301) and a second sliding member (302).

4. A centered folding scissor arm hinge according to claim 3 wherein the hinge of the supporting short arm (4) to the first link (1) is a first hinge point (401), and the first sliding member (301) and the second sliding member (302) of the scissor fork (3) slide symmetrically on the first link (1) centered on the first hinge point (401).

5. A centered folding scissor arm hinge according to claim 1 or 2, wherein the line connecting the first hinge point (401) and the third hinge point (303) is perpendicular to the first connecting rod (1).

6. A centered folding scissor arm hinge according to claim 1 or 2 wherein a second link (2) is provided at the end remote from the first link (1), the scissor fork (3) is slidably connected to the second link (2), and a support stub (4) is provided between the second link (2) and the scissor fork (3).

7. A centered folding scissor arm hinge according to claim 1 or 2 wherein the sliding joints of the scissor forks (3) are provided with damping screws and the first (1) and second (2) connecting rods are provided with a stop means.