CN2503173Y

CN2503173Y - Device for taking weight of door

Info

Publication number: CN2503173Y
Application number: CN 01253824
Authority: CN
Inventors: 李洪通
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-09-21
Filing date: 2001-09-21
Publication date: 2002-07-31
Anticipated expiration: 2011-09-21

Abstract

A room door supporting device has an outer casing which connects with the room door. A spring matched with a movable supporting axle is arranged in the outer casing. The lower end of the supporting axle connects with a trundle component, whose roller contacts with the ground. The supporting device is essentially applicable to large house gates, e.g. a gate through which an automobile can enter a room. The gate of this kind, generally, consists of two doors respectively open towards two sides and each, all too often, composed of two commonly-sized doors in connection via a hinge; is made of metal or wood and therefore is heavy; connects with the door frame via a single side and, as a result, the open-close side not in connection with the door frame has exceedingly large a downward gravity and a torque stress, which may cause lateral lowering deformation to the door. The problem can be completely solved by arrangement of the room door supporting device. Acting on the spring via the casing, the gravity of the door is transmitted by the spring to the movable supporting axle until to the roller. The spring has particularly excellent performance in overcoming the ground unevenness during the door movements.

Description

The door eyelid retractor

Technical field

The utility model relates to the door eyelid retractor, is installed in the following bottom comer that door opens and closes side, mainly is applicable to than the gate, particularly two fans or the continuous folding composite door of three fans.

Background technology

Door of a great variety carries out supporting design according to the building structure difference.Existing family, especially the rural area often has on the spot house, be multilayer as three layers or four layers or higher building normalizing man all, and between how having, often with motor vehicle, reach the indoor of bottom as automobile, just need door be installed to whole house antetheca, so need at " gate ", this " gate " is exactly that open steam supply car passes through, can be the two fan integral doors that are positioned on the both sides, or connect folding two fan doors by wicket, the whole in a word shop front is long-pending big, and Heavy Weight generally is made by metal material.But the installation of this class door is one-sided being fixed on the door frame, is bearing complicated downward load forces and moment of torsion stress, and is sagging thereby the keying side of door can occur, and the time one can make the door leaf distortion for a long time, causes and closes difficulty.

Summary of the invention

The utility model provides a kind of door eyelid retractor, is installed in the keying side bottom of door, contacts with ground, shares the part gravity of door.The technical scheme of its described door eyelid retractor is: a shell body that connects door is arranged, and mounting spring in the shell body, spring matches with the bolster of an activity, following connecting pin wheel assembly of bolster, the roller of castor assembly contacts with ground.Its spring is the outer wall that is enclosed within expansion bearing axle middle part, in the outside of spring sleeve pipe is arranged, and connects the adjusting double-screw bolt that changes spring pressure during sleeve pipe is suitable for reading.Its described castor assembly has rolling wheel support, and rolling wheel support connects roller through wheel shaft, and rolling wheel support top is connected with the expansion bearing axle through connector, is to relatively rotate to cooperate between rolling wheel support and the connector.Head portion at the expansion bearing axle is installed snap ring, avoids expansion bearing axle and castor assembly to skid off from sleeve pipe.On rolling wheel support, be equipped with plane bearing, help that rolling wheel support is relative with connector to be rotated.In shell body, be equipped with stiffener, improve shell body intensity.Eyelid retractor has been installed at the angle under the keying side of door, the supported device of weight of door withstands, particularly transmit gravity by spring between shell body in the eyelid retractor and the bolster, rather than bolster is rigid directly is fixed under the door, be that door weight arrives spring through the shell body transmission, spring presses down the expansion bearing axle, the roller of expansion bearing beam warp castor assembly arrives ground, roller is again a universal wheel, so opening of door, in the process of pass, overcome defectives such as ground is uneven, spring obtains adjusting, roller contacts with ground all the time, and in general the compressive force of spring is exactly this eyelid retractor ability to bear.

Description of drawings

Fig. 1 is the utility model door eyelid retractor organigram;

Fig. 2 is that the utility model door eyelid retractor A is to schematic diagram;

Fig. 3 is that the utility model door eyelid retractor B is to schematic diagram.

1, snap ring; 2, regulate double-screw bolt; 3, sleeve pipe; 4, shell body; 5 springs; 6 fixing holes; 7, expansion bearing axle; 8, connector; 9, rolling wheel support; 10, wheel shaft; 11 rollers; 12, door bolt hole; 13, stiffener; 14, plane bearing; 15, riveting limit.

The specific embodiment

The utility model is a kind of door eyelid retractor, is applicable to that the area of door is bigger, and " gate " that weight is heavy again is installed in base angle inwall under the keying side of door.A shell body that is connected with door 4 is arranged, can be installed through fixing hole 6 by securing member, fixing hole quantity and size are not limit.Mounting spring in shell body, spring matches with the expansion bearing axle, and the gravity of door acts on spring through shell body, and spring can press down bolster, following connecting pin wheel assembly of bolster, the roller of castor assembly contacts with ground.In actual product, spring and the bolster coupling mechanism in shell body, and the embodiment of castor assembly is a lot, below for a specific example.Described expansion bearing axle 7 upper diameter can be smaller, the bottom is big, spring 5 is enclosed within bolster 7 outsides, the outside of spring 5 is equipped with sleeve pipe 3, during sleeve pipe 3 is suitable for reading screw thread is arranged, and connects and regulates double-screw bolt 2, one crown of spring 5 is on 7 joints of bolster, the other end withstands on double-screw bolt 2 times, and double-screw bolt 2 is regulated in rotation as required, changes spring 5 pressure.Castor assembly has rolling wheel support 9, rolling wheel support connects roller 11 through wheel shaft 10, rolling wheel support 9 can pass through connector 8 with being connected of expansion bearing axle 7, connector has the eaves that turns on riveting limit 15 for 8 times, goes up like screw and passes the rolling wheel support hole, is connected in the bolster internal thread again, this connecting mode is better simply a kind of, practical methods is a lot, is that movable axle cooperates with the hole between rolling wheel support 9 and the connector 8, satisfies the needs of the universal rotation of roller.For expansion bearing axle 7 is not skidded off, at head snap ring 1 is installed, as jump ring, retaining is on double-screw bolt.For the rotation that makes rolling wheel support 9 is more flexible, the mounting plane bearing 14 in the above, perhaps relevant plane spin etc.For helping fixing between sleeve pipe 3 and the shell body 4, and improve intensity, stiffener 13 can be installed, or strengthen baffle plate.

Claims

1, door eyelid retractor is characterized in that having a shell body that connects door, mounting spring in the shell body, and spring matches with the bolster of an activity, following connecting pin wheel assembly of bolster, the roller of castor assembly contacts with ground.

2, door eyelid retractor as claimed in claim 1 is characterized in that spring (5) is enclosed within the outer wall of expansion bearing axle (7), in the outside of spring (5) sleeve pipe (3) is arranged, and connects the adjusting double-screw bolt (2) that changes spring pressure during sleeve pipe (3) is suitable for reading.

3, door eyelid retractor as claimed in claim 1, it is characterized in that castor assembly has rolling wheel support (9), rolling wheel support connects roller (11) through wheel shaft (10), rolling wheel support top is connected with expansion bearing axle (7) through connector (8), is to relatively rotate to cooperate between rolling wheel support (9) and the connector (8).

4, door eyelid retractor as claimed in claim 1 or 2 is characterized in that expansion bearing axle (7) head installation snap ring (1).

5, door eyelid retractor as claimed in claim 3 is characterized in that being equipped with on the rolling wheel support (9) plane bearing (14).

6, door eyelid retractor as claimed in claim 1 is characterized in that being equipped with in the shell body stiffener (13).