CN112282626A

CN112282626A - Trackless retractable door

Info

Publication number: CN112282626A
Application number: CN202011336027.XA
Authority: CN
Inventors: 黄海
Original assignee: Shenzhen Polytechnic
Current assignee: Shenzhen Polytechnic
Priority date: 2020-11-25
Filing date: 2020-11-25
Publication date: 2021-01-29

Abstract

A trackless retractable door comprises a machine head, a middle frame, a tail frame, a side scissor mechanism and a lower scissor mechanism; the tail frame is arranged on the wall body, the number of the middle frames is multiple, the side shearing fork mechanisms are arranged on the side edges of the middle frames and connected with the multiple middle frames, one end of each side shearing fork mechanism is connected with the tail frame, and the other end of each side shearing fork mechanism is connected with the machine head; the lower scissor mechanism is arranged on the bottom edge of the middle frame and connected with the middle frames, one end of the lower scissor mechanism is connected with the bottom of the tail frame, and the other end of the lower scissor mechanism is connected with the bottom of the machine head; the side shearing fork mechanism and the lower shearing fork mechanism are perpendicular to each other. Through the structural stability of side scissor mechanism and lower scissor mechanism self, restrict this flexible door lateral shifting's of trolley-bus ability to guarantee that these flexible people of trolley-bus carry out sharp walking.

Description

Trackless retractable door

Technical Field

The invention relates to the field of retractable doors, in particular to a trackless retractable door.

Background

The development of the retractable gate is rapidly and completely developed in recent years, but the existing rail gate mechanism in the market still cannot meet the requirements of different places, is not suitable for passing large-tonnage vehicles, has higher later-stage rail replacement and maintenance cost, and has the problems that the wheels are easy to deform and derail due to long-term abrasion on the rails.

Some trackless intelligent retractable doors that have appeared at present do not fundamentally solve the problem that the gate can deviate from the track when doing linear motion, lead to the retractable door aircraft nose can't walk the straight line, will lay single or double metal guide strip in the underground, perhaps fix a position with magnetic mechanism, do not reach the meaning of really removing the track, can not solve totally and do not have this problem of track.

Disclosure of Invention

Technical problem to be solved

In order to solve the problems, the trackless retractable door provided by the invention can realize linear walking without laying a guide mechanism.

(II) technical scheme

In order to achieve the purpose, the invention provides the following technical scheme: a trackless retractable door comprises a machine head, a middle frame, a tail frame, a side scissor mechanism and a lower scissor mechanism; the tail frame is arranged on the wall body, the number of the middle frames is multiple, the side shearing fork mechanisms are arranged on the side edges of the middle frames and connected with the multiple middle frames, one end of each side shearing fork mechanism is connected with the tail frame, and the other end of each side shearing fork mechanism is connected with the machine head; the lower scissor mechanism is arranged on the bottom edge of the middle frame and connected with the middle frames, one end of the lower scissor mechanism is connected with the bottom of the tail frame, and the other end of the lower scissor mechanism is connected with the bottom of the machine head; the side shearing fork mechanism and the lower shearing fork mechanism are perpendicular to each other.

Preferably, the lower scissors mechanism comprises a plurality of first rods and a plurality of second rods, the first rods and the second rods are hinged in the middle and form a cross structure, the first ends of the first rods are hinged on the tail frame or the middle frame, the second ends of the first rods are slidably connected on the middle frame or the nose, the first ends of the second rods are slidably connected on the tail frame or the middle frame, and the second ends of the second rods are hinged on the middle frame or the nose.

Preferably, the trackless retractable door further comprises a steel coil, and the lower scissor mechanism further comprises a hinge shaft and a positioning sleeve; one end of the articulated shaft penetrates through the first end of the first rod and/or the second end of the second rod, then penetrates through the bottom of the tail frame, the bottom of the middle frame or the bottom of the machine head and is connected with the positioning sleeve; one end of the steel coil is wound in the wall body, and the other end of the steel coil extends out of the wall body and penetrates through the positioning sleeves in sequence to be fixedly connected with the machine head.

Preferably, the lower scissors fork mechanism further comprises a sliding shaft, and the bottom of the machine head, the bottom of the middle frame and the bottom of the tail frame are provided with sliding grooves; the sliding shaft penetrates through the second end of the first rod and/or the first end of the second rod and is arranged in the sliding groove in a sliding mode.

Preferably, the two lower scissors mechanisms are arranged on two sides of the middle frame in a bilateral symmetry mode, so that hinge shafts in the two lower scissors mechanisms are respectively arranged close to two side edges of the middle frame.

Preferably, the ratio of the width to the height of the intermediate frame is greater than 3: 5.

Advantageous effects

The invention has the beneficial effects that: a trackless retractable door comprises a machine head, a middle frame, a tail frame, a side scissor mechanism and a lower scissor mechanism; the tail frame is arranged on the wall body, the number of the middle frames is multiple, the side shearing fork mechanisms are arranged on the side edges of the middle frames and connected with the multiple middle frames, one end of each side shearing fork mechanism is connected with the tail frame, and the other end of each side shearing fork mechanism is connected with the machine head; the lower scissor mechanism is arranged on the bottom edge of the middle frame and connected with the middle frames, one end of the lower scissor mechanism is connected with the bottom of the tail frame, and the other end of the lower scissor mechanism is connected with the bottom of the machine head; the side shearing fork mechanism and the lower shearing fork mechanism are perpendicular to each other. Through the structural stability of side scissor mechanism and lower scissor mechanism self, restrict this flexible door lateral shifting's of trolley-bus ability to guarantee that these flexible people of trolley-bus carry out sharp walking.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention without limiting the invention in which:

FIG. 1 is a first schematic diagram of the overall structure of an embodiment of the present invention;

FIG. 2 is a schematic overall structure diagram of the second embodiment of the present invention;

FIG. 3 is an enlarged view taken at A in FIG. 1;

FIG. 4 is a schematic structural diagram of a lower scissors mechanism;

FIG. 5 is a schematic diagram of a portion of an embodiment of the present invention;

FIG. 6 is a partial bottom view of an embodiment of the present invention;

FIG. 7 is a diagram showing a positional relationship between a straight line X and a straight line Y;

FIG. 8 is a schematic structural diagram of a steel coil;

in the drawing, a machine head 1, a middle frame 2, a tail frame 3, a side fork shearing mechanism 4, a lower fork shearing mechanism 5, a steel coil 6, a first rod 51, a second rod 52, a hinge shaft 53, a positioning sleeve 54, a sliding shaft 55, a first end of the first rod 51a, a second end of the first rod 51b, a first end of the second rod 52a, a second end of the second rod 52b, a wall body a and a sliding groove b are arranged.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to the attached figures 1 to 8, the trackless retractable door comprises a machine head 1, a middle frame 2, a tail frame 3, a side scissor mechanism 4 and a lower scissor mechanism 5; the tail frame 3 is arranged on the wall body a, the number of the middle frames 2 is multiple, the side scissor mechanisms 4 are arranged on the side edges of the middle frames 2 and connected with the middle frames 2, one end of each side scissor mechanism 4 is connected with the tail frame 3, and the other end of each side scissor mechanism 4 is connected with the machine head 1; the lower scissors mechanism 5 is arranged on the bottom edge of the middle frame 2 and connected with the middle frames 2, one end of the lower scissors mechanism 5 is connected with the bottom of the tail frame 3, and the other end of the lower scissors mechanism 5 is connected with the bottom of the nose 1; the side scissor mechanism 4 and the lower scissor mechanism 5 are arranged perpendicular to each other.

The trackless retractable door is limited in lateral movement capacity by the structural stability of the side scissor mechanism 4 and the lower scissor mechanism 5, so that the trackless retractable door can travel linearly. As is well known, the scissors structure has high stability and firm structure. When the lower scissor mechanism 5 is arranged at the bottom of the middle frame 2 in a flat manner, the trackless retractable door has excellent resistance to the horizontal thrust perpendicular to the running track of the trackless retractable door. Therefore, the arrangement of the lower scissor mechanism 5 can effectively reduce the possibility that the track deviates from a straight line when the trackless retractable door runs.

Specifically, the lower scissors mechanism 5 includes a plurality of first rods 51 and a plurality of second rods 52, the first rods 51 and the second rods 52 are hinged in the middle and form a cross structure, a first end 51a of the first rod is hinged on the tail frame 3 or the middle frame 2, a second end 51b of the first rod is slidably connected on the middle frame 2 or the head 1, a first end 52a of the second rod is slidably connected on the tail frame 3 or the middle frame 2, and a second end 52b of the second rod is hinged on the middle frame 2 or the head 1. Wherein the first rod first end 51a is hinged to the second rod second end 52b, the first rod second end 51b is hinged to the second rod first end 52a, all the hinge point connecting lines of the first rod first ends 51a and the second rod second ends 52b form a straight line X with a fixed position, and all the hinge point connecting lines of the first rod second ends 51b and the second rod first ends 52a form a straight line Y which is parallel to the straight line X and can move horizontally, as shown in fig. 7. Within the allowable range of the strength of the material constituting the lower scissor mechanism 5, the straight line X and the straight line Y are not bent, so that the straight line X is used as the guide line of the trackless retractable door, and the trackless retractable door can be kept to travel linearly.

Further, the trackless retractable door also comprises a steel coil 6, and the lower scissor mechanism 5 also comprises a hinge shaft 53 and a positioning sleeve 54; one end of the hinge shaft 53 penetrates through the first rod end 51a and/or the second rod end 52b, penetrates through the bottom of the tail frame 3, the bottom of the middle frame 2 or the bottom of the machine head 1, and is connected with the positioning sleeve 54; one end of the steel coil 6 is coiled in the wall a, and the other end of the steel coil extends out of the wall a and sequentially penetrates through the positioning sleeves 54 to be fixedly connected with the machine head 1. Wherein the steel coil 6 also has excellent shearing resistance and can be coiled and stretch-released. Each positioning sleeve 54 is sleeved on the steel coil 6, and the connecting line of each hinge shaft 53 is equal to the straight line X, so that the shearing resistance of the steel coil 6 can enhance the bending resistance of the straight line X, and the structural stability of the lower scissor mechanism 5 can be further enhanced by the arrangement of the steel coil 6, thereby ensuring that the running track of the trackless retractable door is a straight line.

Further, the lower scissors fork mechanism 5 also comprises a sliding shaft 55, and sliding grooves b are formed in the bottom of the machine head 1, the bottom of the middle frame 2 and the bottom of the tail frame 3; the sliding shaft 55 penetrates the first rod second end 51b and/or the second rod first end 52a and is slidably disposed in the sliding groove b. And the arrangement of the sliding groove b can enhance the connection stability between the first rod and the second rod and the machine head 1, the middle frame 2 and the tail frame 3.

Further, two lower scissors mechanisms 5 are symmetrically arranged on two sides of the middle frame 2, so that the hinge shafts 53 in the two lower scissors mechanisms 5 are respectively arranged close to two side edges of the middle frame 2. The two straight lines X extend along the two sides of the trackless retractable door respectively, so that the stress of the trackless retractable door is more balanced, and the stability of the trackless retractable door is improved.

In order to accommodate the two symmetrically arranged lower scissor mechanisms 5 conveniently, the ratio of the width to the height of the middle frame 2 is greater than 3:5, so that on the premise that the swing angle of the first rod is not greater than 60 degrees, the maximum distance between two adjacent middle frames 2 can reach 0.3 time of the height of the middle frame 2, and the stroke of the trackless retractable door is improved.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

The relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present application unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

In the description of the present application, it is to be understood that the orientation or positional relationship indicated by the directional terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc., are generally based on the orientation or positional relationship shown in the drawings, and are used for convenience of description and simplicity of description only, and in the case of not making a reverse description, these directional terms do not indicate and imply that the device or element being referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore, should not be considered as limiting the scope of the present application; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of protection of the present application is not to be construed as being limited.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A trackless retractable door is characterized by comprising a machine head (1), a middle frame (2), a tail frame (3), a side scissor mechanism (4) and a lower scissor mechanism (5);

the tail frame (3) is installed on a wall body (a), the middle frame (2) is provided with a plurality of side scissor mechanisms (4), the side scissor mechanisms (4) are installed on the side edge of the middle frame (2) and connected with the middle frames (2), one ends of the side scissor mechanisms (4) are connected with the tail frame (3), and the other ends of the side scissor mechanisms (4) are connected with the machine head (1);

the lower scissors fork mechanism (5) is arranged on the bottom edge of the middle frame (2) and connected with the middle frames (2), one end of the lower scissors fork mechanism (5) is connected with the bottom of the tail frame (3), and the other end of the lower scissors fork mechanism (5) is connected with the bottom of the machine head (1);

the side shearing fork mechanism (4) and the lower shearing fork mechanism (5) are perpendicular to each other.

2. A trackless retractable door as claimed in claim 1, characterized in that the lower scissor mechanism (5) comprises a plurality of first bars (51) and a plurality of second bars (52), the first bars (51) and the second bars (52) are hinged at the middle part and form a cross structure, the first bars are hinged at a first end (51a) to the tail frame (3) or the middle frame (2), the first bars are slidably connected at a second end (51b) to the middle frame (2) or the head frame (1), the second bars are slidably connected at a first end (52a) to the tail frame (3) or the middle frame (2), and the second bars are hinged at a second end (52b) to the middle frame (2) or the head frame (1).

3. A trackless retractable door as claimed in claim 2, further comprising a coil of steel (6), the lower scissor mechanism (5) further comprising a hinge shaft (53) and a positioning sleeve (54); one end of the hinge shaft (53) penetrates through the first rod end (51a) and/or the second rod end (52b) and then penetrates through the bottom of the tail frame (3), the bottom of the middle frame (2) or the bottom of the machine head (1) and then is connected with a positioning sleeve (54); one end of the steel coil (6) is coiled in the wall body (a), and the other end of the steel coil extends out of the wall body (a) and penetrates through the positioning sleeves (54) in sequence to be fixedly connected with the machine head (1).

4. A trackless retractable door as claimed in claim 2, wherein the lower scissor mechanism (5) further comprises a sliding shaft (55), and the bottom of the head (1), the bottom of the middle frame (2) and the bottom of the tail frame (3) are provided with sliding grooves (b); the sliding shaft (55) penetrates through the first rod second end (51b) and/or the second rod first end (52a) and is slidably arranged in the sliding groove (b).

5. A trackless retractable door as claimed in claim 2 or 3, wherein two lower scissor mechanisms (5) are provided and are arranged on both sides of the intermediate frame (2) in a left-right symmetrical manner, such that the hinge shafts (53) in the two lower scissor mechanisms (5) are respectively arranged close to both sides of the intermediate frame (2).

6. A trackless retractable door as claimed in claim 1, wherein the ratio of the width to the height of the intermediate frame (2) is greater than 3: 5.