CN111236773B - A load-bearing sliding support hinge that prevents falling, falling off, and dust - Google Patents

A load-bearing sliding support hinge that prevents falling, falling off, and dust Download PDF

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Publication number
CN111236773B
CN111236773B CN202010215483.2A CN202010215483A CN111236773B CN 111236773 B CN111236773 B CN 111236773B CN 202010215483 A CN202010215483 A CN 202010215483A CN 111236773 B CN111236773 B CN 111236773B
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China
Prior art keywords
cantilever
falling
support
sliding support
dust
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CN202010215483.2A
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Chinese (zh)
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CN111236773A (en
Inventor
陈大川
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Guangdong Aurican Hardware Technology Co ltd
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Guangdong Aurican Hardware Technology Co ltd
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Priority to CN202010215483.2A priority Critical patent/CN111236773B/en
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
    • E05C17/00—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith
    • E05C17/02—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means
    • E05C17/04—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means with a movable bar or equivalent member extending between frame and wing
    • E05C17/32—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means with a movable bar or equivalent member extending between frame and wing consisting of two or more pivoted rods
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D3/00—Hinges with pins
    • E05D3/06—Hinges with pins with two or more pins
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D5/00—Construction of single parts, e.g. the parts for attachment
    • E05D5/02—Parts for attachment, e.g. flaps
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D7/00—Hinges or pivots of special construction
    • E05D7/08—Hinges or pivots of special construction for use in suspensions comprising two spigots placed at opposite edges of the wing, especially at the top and the bottom, e.g. trunnions
    • E05D7/081—Hinges or pivots of special construction for use in suspensions comprising two spigots placed at opposite edges of the wing, especially at the top and the bottom, e.g. trunnions the pivot axis of the wing being situated near one edge of the wing, especially at the top and bottom, e.g. trunnions
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/10—Application of doors, windows, wings or fittings thereof for buildings or parts thereof
    • E05Y2900/13—Type of wing
    • E05Y2900/148—Windows

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Hinges (AREA)

Abstract

The invention belongs to the technical field of sliding support hinges, and particularly relates to a sliding support hinge which is free of sliding grooves and easy to install, and particularly discloses an anti-falling, anti-falling and anti-dust bearing type sliding support hinge which comprises a frame connecting plate, a short support cantilever, a long support cantilever, a top support cantilever and a combined sliding block. The sliding support hinge for the casement window can adjust the sagging of the buffer window sash, prevent the head of the top support cantilever from being separated from the guide vertex angle, prevent dust, and is suitable for various sectional materials and convenient to install.

Description

Anti-falling, anti-falling and dustproof bearing type sliding support hinge
Technical Field
The invention belongs to the technical field of sliding support hinges, and particularly relates to a sliding support hinge which is free of sliding grooves and easy to install.
Background
The sliding support hinge for the casement window is formed by assembling a sliding rail, a sliding block, a guide vertex angle and a plurality of support cantilevers, wherein the sliding rail is an opening-shaped groove formed by bending a stainless steel sheet, the sliding block is assembled in the groove below an upper folding edge of the opening-shaped groove, one ends of a short support cantilever and a support cantilever are hinged at corresponding positions of the sliding block, one end of a long support cantilever is hinged at one end of the sliding rail, the middle part of the long support cantilever is hinged with the other end of the support cantilever, the other end of the long support cantilever is hinged with the middle part of a top support cantilever, and the head part of the top support cantilever is hinged with the other end of the short support cantilever to form a connecting rod movement mechanism. The other end of the sliding rail is provided with a guide vertex angle which plays a guiding role in opening and closing the hinge. The sliding rail of the sliding support hinge and the corresponding position of the top support cantilever are provided with mounting holes, the sliding rail and the top support cantilever are respectively connected and fixed with the window frame and the window sash during mounting, when the window sash is pushed, the window sash transmits force to the connecting rod movement mechanism through the top support cantilever mounted on the window sash, and the sliding block can slide in the sliding rail, so that the movement mechanism moves under acting force, and the window sash can be opened and closed.
The weight of the window fan is pressed on the short supporting cantilever and the long supporting cantilever through the top supporting cantilever, and the short supporting cantilever is singly stressed, while the long supporting cantilever is stressed by the combined supporting cantilever (because the middle part of the long supporting cantilever is hinged with one end of the supporting cantilever), so that the stress of the short supporting cantilever is larger than that of the supporting cantilever and the long supporting cantilever. The sliding block bears the pressure of the short supporting cantilever and the supporting cantilever and simultaneously slides forwards and backwards, so that the stress condition is worse.
The common sliding support hinge has the following defects that 1, the bending change or twisting of the sliding rail or the top support cantilever is caused by the stress change in the opening and closing process of the window sash, so that the mounting screw is loosened gradually, and if the window is carelessly used for a period of time, particularly if the window is impacted by external force accidentally, the window sash can be separated from the top support cantilever or the sliding rail is separated from the window frame due to the loosening or failure of the screw, so that the window sash falls. 2. After long-time use, the sliding block can be deformed or broken under the condition that the window sash is impacted by external force due to poor bearing capacity under the condition of long-time abrasion, and the sliding block is separated from the sliding rail, so that the window sash cannot be opened and closed, and even the window sash is possibly fallen. 3. For a sliding support hinge installed at the bottom end of a window sash, the short support cantilever is severely bent downwards due to high stress, so that the head of the top support cantilever hinged with the short support cantilever is affected to be bent downwards, and one end of the window sash (connected with the top support cantilever) is sagged. The drooping of one end of the window sash causes the gap between the top end of the window sash and the window frame to be pulled down and enlarged, so that not only is the window not tightly closed, but also the head of the top bracket cantilever of the sliding support hinge connected with the top end of the window sash is pulled down by the drooping window sash and separated from the lower part of the guide vertex angle. So that the sliding support hinge can not be opened or closed, and the window sash can not be opened or closed. 4. Dust falling on the sliding rail can block the sliding of the sliding block after being accumulated for a period of time, so that the window sash can not be opened or closed smoothly or even can not be opened or closed.
In view of this, the present invention has been made.
Disclosure of Invention
The invention aims to provide an anti-falling, anti-falling and dustproof bearing type sliding support hinge which can be used for adjusting the sagging of a buffer window sash, preventing the head of a top support cantilever from being separated from a guide vertex angle, preventing dust and being suitable for various sectional materials and convenient to install.
In order to achieve the aim, the anti-falling, anti-falling and anti-dust bearing type sliding support hinge comprises a frame connecting plate, a short support cantilever, a long support cantilever, a top support cantilever and a combined sliding block, wherein the front part of the frame connecting plate is hinged with one end of the short support cantilever, the rear part of the frame connecting plate is hinged with one end of the long support cantilever, the other end of the long support cantilever is hinged with the middle part of the top support cantilever, and the front part of the top support cantilever is riveted with the other end of the short support cantilever;
the combined sliding block is assembled in a long hole groove on the top support cantilever, one end of the support cantilever is hinged with the combined sliding block, and the other end of the support cantilever is hinged with the middle part of the long support cantilever;
the frame connecting plate is of a three-stage platform type structure, the first stage platform is a top flat plate, the second stage platform and the third stage platform are downwards protruding platforms, and the second stage platform of the frame connecting plate is provided with an anti-falling block.
Further, a reinforcing pad is arranged between the top support cantilever and the short support cantilever, and the top support cantilever, the short support cantilever and the reinforcing pad are connected together through a lower sliding support rivet or an upper sliding support rivet.
Further, the lower sliding support rivet is of a three-stage circular step structure, wherein a first-stage circular step is riveted at the bottom end of the reinforcing pad, and a second-stage circular step is inserted into a rivet hole of the top support cantilever.
Further, screw holes are formed in the end portions of the upper sliding support rivets.
Further, an anti-loosening positioning block is sleeved outside the lower sliding support rivet, a screw hole is formed in the upper end of the anti-loosening positioning block, and an adjusting screw or a locking screw is assembled in the screw hole and used for adjusting a gap between a step surface of the second-stage circular step of the lower sliding support rivet and the top surface of the top support cantilever.
Further, the outer side of the short support cantilever is wrapped with a nylon sleeve gasket.
Further, a V-shaped notch is formed in one side of the rear end of the support cantilever and used for limiting the opening angle of the sliding support hinge.
Furthermore, the top support cantilever is of a two-stage platform type structure, the first stage platform is a top flat plate, and the second stage platform is a downward protruding platform.
The invention has the following beneficial effects:
1. The three-stage platform structure of the frame connecting plate can avoid twisting of the frame connecting plate caused by stress change in the opening and closing process of the window sash, and further effectively prevent the mounting screw from loosening or failing due to vibration, thereby avoiding the window sash from falling caused by the fact that the frame connecting plate is separated from the window frame.
2. The top flat plate of the frame connecting plate is tightly attached to the top surface of the window frame mounting groove, and the downward bending arranged at the tail part of the frame connecting plate can effectively prevent dust from falling into the mounting groove below the frame connecting plate, so that the cleaning is convenient.
3. The combined sliding block of the sliding support hinge is assembled on the top support cantilever, and compared with the stressed condition of the sliding block of the common sliding support hinge under the support action of the support cantilever, the stressed condition of the combined sliding block is greatly improved, so that the window sashes cannot be opened and closed due to the stressed deformation or fracture of the sliding block, the sliding rail separation and the like can not happen, and even the risk that the window sashes fall is avoided.
Drawings
FIG. 1a is a schematic view of a weight-bearing slide hinge with anti-falling, anti-falling and anti-dust functions in a closed state;
fig. 1b is a schematic structural view of an anti-falling, anti-falling and anti-dust bearing type sliding support hinge in an open state;
FIG. 1c is a perspective view of an anti-drop, and anti-dust load-bearing slide stay hinge of the present invention in an open state;
FIG. 2 is a schematic structural view of a frame connection plate;
FIG. 3a is a schematic view of a short bracket cantilever;
FIG. 3b is a cross-sectional view of the short reach boom of FIG. 3 a;
FIG. 3c is a top view of the short reach boom of FIG. 3 a;
FIG. 4 is a schematic view of the structure of the top bracket boom;
FIG. 5 is a schematic view of the structure of the bracket arm;
FIG. 6 is a schematic structural view of a reinforcing mat;
FIG. 7 is a cross-sectional view of a lower slide stay rivet;
FIG. 8 is a cross-sectional view of an upper slide stay rivet;
FIG. 9a is a schematic view of the structure of the locking/positioning block;
FIG. 9b is a top view of the anti-lock/locating block of FIG. 9 a;
FIG. 9c is a right side view of the anti-lock/locating block of FIG. 9 a;
FIG. 9d is a cross-sectional view of the anti-lock/locating block of FIG. 9 a;
fig. 10 is an assembly schematic view of the sliding support hinge of the present invention installed in a window frame, window sash.
Detailed Description
In order that those skilled in the art will better understand the present invention, the present invention will be described in further detail with reference to specific embodiments.
Referring to fig. 1a to 9d, the anti-falling and anti-falling anti-dust bearing type sliding support hinge is formed by assembling a guide top angle 1, a frame connecting plate 2, a short support cantilever 3, a top support cantilever 4, a support cantilever 5, a long support cantilever 6, a combined sliding block 7, a reinforcing pad 8, a lower sliding support rivet 9 (or an upper sliding support rivet 10), an anti-loosening/positioning block 11, an adjusting screw 12 (or a locking screw 13) and an anti-falling block 14. The front part of the frame connecting plate 2 is hinged with one end of the short supporting cantilever 3, the rear part of the frame connecting plate 2 is hinged with one end of the long supporting cantilever 6, the other end of the long supporting cantilever 6 is hinged with the middle part of the top supporting cantilever 4, and the front end of the top supporting cantilever 4 is riveted with the other end of the short supporting cantilever 3 through a reinforcing pad 8. The frame connecting plate 2, the short support cantilever 3, the top support cantilever 4 and the long support cantilever 6 form a movement mechanism.
The combined sliding block 7 is assembled in the long hole groove 4-3 at the rear part of the top support cantilever, the combined sliding block 7 is hinged with one end of the support cantilever 5, and the other end of the support cantilever 5 is hinged with the middle part of the long support cantilever 6, so that the support cantilever 5 can rotate along with the moving mechanism, and the bearing capacity of the sliding support hinge is enhanced.
One side of the rear end of the supporting cantilever 5 is provided with a V-shaped notch 5-1 for limiting the opening angle of the sliding support hinge. One end of the frame connecting plate 2 is provided with a guide vertex angle 1 for guiding the opening and closing of the hinge. A lower sliding support rivet 9 or an upper sliding support rivet 10 is arranged between the top support cantilever 4 and the reinforcing pad 8, and a locking/positioning block 11 is sleeved outside the lower sliding support rivet 9 or the upper sliding support rivet 10 through a round hole 11-1 at the lower end of the locking/positioning block. The upper end of the anti-loose/positioning block 11 is provided with a screw hole 11-2, the anti-loose screw 11-3 is screwed in the screw hole 11-2 through threaded connection, and the inner end of the anti-loose/positioning block 11 is provided with a boss 11-4 with a T-shaped cross section.
The invention is mainly characterized in that:
1. As shown in fig. 2, the frame connecting plate 2 is designed into a three-stage platform structure, wherein the first-stage platform is a top flat plate 2-1, the top flat plate 2-1 is provided with rivet holes hinged with a supporting cantilever, the second-stage platform and the third-stage platform are downwards-protruding platforms, the second-stage platform 2-2 is positioned at two ends of the frame connecting plate 2, besides being used for assembling a guide vertex angle 1, an anti-falling block 14 is arranged through rivets, and the third-stage platform 2-3 is positioned in the middle of the frame connecting plate 2 and is provided with mounting screw holes. The tail end of the frame connecting plate 2 is also provided with downward bends 2-4.
As shown in fig. 10, when the frame connecting plate 2 is connected with the window frame 15, the third stage platform 2-3 of the frame connecting plate 3 is tightly attached to the bottom surface of the window frame mounting groove 15-1, and the top plate 2-1 (first stage platform) is tightly attached to the top surface of the window frame mounting groove 15-1, so that torsion of the frame connecting plate 2 caused by stress change in the opening and closing process of the window sash is avoided, and further, the mounting screw is stably stressed, loosening or failure of the mounting screw caused by vibration can be effectively prevented, and thus the window sash falling caused by that the frame connecting plate 2 is separated from the window frame 15 is avoided. After the anti-falling blocks 14 (shown in fig. 1 a) assembled in the second stage platform 2-2 (shown in fig. 2) of the frame connecting plate 2 are embedded under the flanges on two sides of the window frame mounting groove 15-1 through rotation, even if the window sash is accidentally impacted by external force to loosen or lose efficacy of the screw, the frame connecting plate 2 cannot be separated from the window frame 15, and a second safety function is played for avoiding the falling of the window sash.
In addition, the top flat plate 2-1 is closely attached to the top surface of the window frame mounting groove, and the downward bending 2-4 (shown in fig. 2) arranged at the tail part of the frame connecting plate 2 can effectively prevent dust from falling into the mounting groove below the frame connecting plate 2, so that the cleaning is convenient.
Further, as shown in FIG. 4, the top bracket cantilever is designed as a secondary platform, wherein the primary platform is a top flat plate 4-1 provided with screw mounting holes and rivet holes, and the secondary platform is a downward protruding platform 4-2 (1) or 4-2 (2). As shown in fig. 1a and 1b, the second stage platform 4-2 (1) in the middle of the top bracket cantilever 4 is hinged with the long bracket cantilever 6, the second stage platform 4-2 (2) at the rear end of the top bracket cantilever 4 is assembled with a combined sliding block 7, and the combined sliding block 7 is hinged with the bracket cantilever 5. The front end of the top plate 4-1 of the top bracket arm 4 is equipped with a reinforcing pad 8 and a locking/positioning block 11. As shown in FIG. 6, the reinforcing mat 8 is designed as a two-stage platform, a first stage platform 8-1 and a second stage platform 8-2, with the second stage platform 8-2 being located below the top deck 4-1 of the top bracket arm 4.
Referring to fig. 10, when the top bracket 4 is mounted, the top flat plate 4-1 of the top bracket 4 is embedded in the C-shaped mounting groove 16-1 of the window sash, the second stage platforms 4-2 (1), 4-2 (2) of the top bracket 4 and the second stage platform 8-2 of the reinforcing pad are used for jumping over the notch of the C-shaped mounting groove 16-1 of the window sash, and the T-shaped boss 11-4 at the inner end of the locking/positioning block 11 is inserted into the C-shaped mounting groove at the side end of the window sash and locked at the side end of the window sash through the locking screw 11-3, so as to prevent the top bracket 4 from being in serial movement in the C-shaped mounting groove. The structure can firmly inlay the top support cantilever 4 in the C-shaped mounting groove of the window sash, prevent the window sash from falling, and can not influence the hinging between the top support cantilever 4, the support cantilever 5 and the long support cantilever 6.
2. Referring to fig. 1a and 1b, the combined sliding block 7 of the sliding support hinge is assembled on the top bracket cantilever 4, and compared with the stressed condition of the sliding block of the common sliding support hinge under the supporting action of the bracket cantilever 5, the stressed condition of the combined sliding block 7 of the sliding support hinge is greatly improved, so that the window sashes cannot be opened and closed due to the stressed deformation or fracture of the sliding block, the sliding rail separation and the like can not happen, and even the risk of falling of the window sashes can be avoided.
3. Referring to fig. 1a and 7, the lower slide rivet 9 assembled between the end of the top bracket cantilever 4 and the reinforcing pad 8 has a three-stage circular step structure, the first stage circular step 9-1 is riveted at the bottom of the reinforcing pad 8 through the rivet hole at the end of the reinforcing pad, the second stage circular step 9-2 is inserted into the rivet hole 4-4 of the top bracket cantilever 4 (as shown in fig. 4), and a certain gap is formed between the step surface of the second stage circular step 9-2 and the top surface of the top bracket cantilever 4. An adjusting screw is fitted into the screw hole 11-2 provided at the upper end of the locking/positioning block 11 for adjusting the gap between the step surface of the second-stage circular step 9-2 and the top surface of the top bracket arm 4. When the short bracket cantilever 3 bends downwards due to the gravity of the window sash, the reinforcing pad 8 on the short bracket cantilever 3 bends downwards along with the moment, so that the lower sliding support rivet 9 is driven to move downwards. Because a certain gap is reserved between the step surface of the second-stage circular step 9-2 of the lower sliding support rivet 9 and the top surface of the top support cantilever 4, when the lower sliding support rivet 9 is driven to move downwards due to the fact that the short support cantilever 3 is bent downwards, the top support cantilever 4 is not pulled downwards and bent downwards, and the lower sliding support rivet cannot be opened or closed due to the fact that the step surface of the second-stage circular step 9-2 of the lower sliding support rivet 9 moves downwards and contacts the top surface of the top support cantilever 4 and then bends downwards along with the continuous bending of the short support cantilever 3, so that the sagging of a window sash arranged on the top support cantilever 4 can be regulated and relieved by regulating the gap between the step surface of the second-stage circular step 9-2 and the top surface of the top support cantilever 4, and further the end portion of the top support cantilever 4 is prevented from being pulled downwards and separated from the guide top angle 1 by the sagging window sash, and the sliding support hinge cannot be opened or closed.
Referring to fig. 1a, the end of the top bracket cantilever 4 and the end of the upper slide rivet 10 assembled between the reinforcing pads 8 are provided with screw holes (as shown in fig. 8), and the locking/positioning block 11 is locked by the screw 13 so that the locking/positioning block 11 is not separated from the upper slide rivet 10.
Further, referring to fig. 1a, the short bracket cantilever 3 is of a thickened structure and is covered with a nylon sleeve pad 3-1 (as shown in fig. 3a-3 c), and a reinforcing pad 8 is arranged between the short bracket cantilever 3 and the top bracket cantilever 4, and is used for reinforcing the bending resistance of the short bracket cantilever 3 and the top bracket cantilever 4, further reducing the sagging of one end of a window sash and increasing the bearing capacity of a sliding support hinge.
Besides the main characteristics mentioned above, the invention is also applicable to various profiles and is convenient to install, as shown in figures 1a-1C and figure 2, the invention can be used for K-channel profiles and common channel profiles when the frame connection plate 2 of the original three-stage platform is replaced by a frame connection plate of a common flat plate. When the anti-loosening/positioning block 11 is arranged on one side of a window sash, the top supporting cantilever 4 can be positioned and arranged on the window sash, and then the frame connecting plate 2 can be arranged on the window frame by arranging the guide vertex angle 1 on one side of the window frame. The position of the mounting hole does not need to be measured and calculated in advance, so that the mounting is quick and convenient.
Specific examples are set forth herein to illustrate the invention in detail, and the description of the above examples is only for the purpose of aiding in understanding the core concept of the invention. It should be noted that any obvious modifications, equivalents, or other improvements to those skilled in the art without departing from the inventive concept are intended to be included in the scope of the present invention.

Claims (8)

1.一种防坠防脱防尘的承重型滑撑铰链,包括框连接板、短托悬臂、托悬臂、长托悬臂、顶部托悬臂和组合滑块；所述框连接板的前部与所述短托悬臂的一端相铰接，所述框连接板的后部与所述长托悬臂的一端相铰接；所述长托悬臂的另一端与所述顶部托悬臂的中部相铰接；所述顶部托悬臂的前部与所述短托悬臂的另一端铆接；1. A heavy-duty sliding support hinge that is anti-falling, anti-falling, and dust-proof, comprising a frame connecting plate, a short support cantilever, a support cantilever, a long support cantilever, a top support cantilever, and a combined slider; the front portion of the frame connecting plate is hinged to one end of the short support cantilever, the rear portion of the frame connecting plate is hinged to one end of the long support cantilever; the other end of the long support cantilever is hinged to the middle portion of the top support cantilever; the front portion of the top support cantilever is riveted to the other end of the short support cantilever; 所述组合滑块装配在所述顶部托悬臂上的长孔槽中，所述托悬臂的一端与所述组合滑块相铰接，所述托悬臂的另一端与所述长托悬臂的中部相铰接；其特征在于：The combined slider is assembled in the long hole groove on the top supporting cantilever, one end of the supporting cantilever is hinged to the combined slider, and the other end of the supporting cantilever is hinged to the middle part of the long supporting cantilever; characterized in that: 所述框连接板为三级平台式结构，第一级平台为顶部平板，第二和三级平台为向下凸起的平台；所述框连接板第二级平台上装配有防坠块。The frame connecting plate is a three-level platform structure, the first-level platform is a top flat plate, and the second and third-level platforms are downwardly protruding platforms; an anti-fall block is installed on the second-level platform of the frame connecting plate. 2.根据权利要求1所述的防坠防脱防尘的承重型滑撑铰链，其特征在于，所述顶部托悬臂与所述短托悬臂之间设置有加强垫，所述顶部托悬臂、所述短托悬臂和所述加强垫之间通过下滑撑铆钉或上滑撑铆钉连接在一起。2. The anti-falling, anti-falling and dust-proof load-bearing sliding support hinge according to claim 1 is characterized in that a reinforcement pad is arranged between the top support cantilever and the short support cantilever, and the top support cantilever, the short support cantilever and the reinforcement pad are connected together by a lower sliding support rivet or an upper sliding support rivet. 3.根据权利要求2所述的防坠防脱防尘的承重型滑撑铰链，其特征在于，所述下滑撑铆钉为三级圆形台阶式结构，其中，第一级圆形台阶通过铆接在所述加强垫的底端，第二级圆形台阶穿插在所述顶部托悬臂的铆钉孔内。3. The anti-falling, anti-falling and dust-proof load-bearing sliding support hinge according to claim 2 is characterized in that the lower sliding support rivet is a three-level circular step structure, wherein the first-level circular step is riveted to the bottom end of the reinforcing pad, and the second-level circular step is inserted into the rivet hole of the top support cantilever. 4.根据权利要求2所述的防坠防脱防尘的承重型滑撑铰链，其特征在于，所述上滑撑铆钉的端部设有螺钉孔。4. The anti-falling, anti-falling and dust-proof load-bearing sliding support hinge according to claim 2, characterized in that a screw hole is provided at the end of the upper sliding support rivet. 5.根据权利要求3所述的防坠防脱防尘的承重型滑撑铰链，其特征在于，所述下滑撑铆钉的外面套装有防松定位块，所述防松定位块的上端设有螺钉孔，所述螺钉孔内装配有调节螺钉或锁紧螺钉，用于调节所述下滑撑铆钉的第二级圆形台阶的台阶面与所述顶部托悬臂的顶面之间的间隙。5. The anti-falling, anti-falling and dust-proof load-bearing sliding support hinge according to claim 3 is characterized in that an anti-loosening positioning block is mounted on the outside of the lower sliding support rivet, and a screw hole is provided on the upper end of the anti-loosening positioning block. An adjusting screw or a locking screw is installed in the screw hole for adjusting the gap between the step surface of the second-level circular step of the lower sliding support rivet and the top surface of the top support cantilever. 6.根据权利要求1所述的防坠防脱防尘的承重型滑撑铰链，其特征在于，所述短托悬臂的外侧包裹有尼龙套垫。6. The anti-falling, anti-falling and dust-proof load-bearing sliding support hinge according to claim 1 is characterized in that the outer side of the short support cantilever is wrapped with a nylon sleeve pad. 7.根据权利要求1所述的防坠防脱防尘的承重型滑撑铰链，其特征在于，所述托悬臂的后端的一侧设有V形缺口，用于限制所述滑撑铰链的开启角度。7. The anti-falling, anti-falling and dust-proof load-bearing sliding support hinge according to claim 1 is characterized in that a V-shaped notch is provided on one side of the rear end of the supporting cantilever to limit the opening angle of the sliding support hinge. 8.根据权利要求1所述的防坠防脱防尘的承重型滑撑铰链，其特征在于，所述顶部托悬臂为二级平台式结构，其第一级平台为顶部平板，第二级平台为向下凸起的平台。8. The anti-falling, anti-falling and dust-proof load-bearing sliding support hinge according to claim 1 is characterized in that the top support cantilever is a two-level platform structure, the first-level platform is a top flat plate, and the second-level platform is a downwardly protruding platform.
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