Novel bottom beam structure of trackless cantilever door

Abstract

The utility model relates to a novel bottom beam structure of a trackless cantilever door. A linkage cavity is formed in the middle of a bottom beam profile, an inlet is formed in the bottom of the linkage cavity, a cut-off transverse plate is fixed to the top of the linkage cavity, and a chain cavity with an opening in the bottom is fixed to the center of the transverse plate; a top connecting cavity is formed in the upper part of the chain cavity; the two sides of the linkage cavity inlet are each provided with a foot connecting cavity, and the bottom of each foot connecting cavity is provided with a sunken groove which is sunken upwards. Two bases are symmetrically arranged on the top of the bottom beam profile, and steps are oppositely arranged on the two bases. According to the utility model, through the top connecting cavity and the foot connecting cavity which are distributed triangularly, only three connecting beams are used for connecting the sections of the bottom beam. The bottom beam and the door body are connected by inserting the limiting plate into the inserting groove, so that bolt fixation can be avoided, the number of bolts is obviously reduced, the top of the bottom beam can be made smaller, and the pressure on the bottom beam is reduced. The bottom beam is narrow in top and wide in bottom, so that the whole bottom beam is of a triangular structure, and the bearing capacity of the bottom beam is increased.

Description

TECHNICAL FIELD

[0001] The utility model relates to a trackless cantilever door field especially a new trackless cantilever door's bottom beam structure. BACKGROUND

[0002] Traditional electric sliding door in order to guarantee the door body movement will be laid on the ground track, but the track laying on one hand will increase the installation difficulty of sliding door, and the exposed track is easy to be silted or be crushed by the car deformation, whereby the service life of traditional electric sliding door is not long. On this basis, the trackless cantilever type sliding door is developed, the door body is fixed on the bottom beam through bolt, and the support roller is installed in the bottom beam to realize supporting the bottom beam and assisting the bottom beam movement. The rack is installed on the bottom beam, the motor is installed at the portal frame, the output end of the motor is installed the gear, and the gear is engaged with the rack, so that the motor can drive the gear to rotate when the bottom beam and the door body can move linearly. On this basis, two sections of linkage type sliding door are designed, and the sections are connected through the bolt fixed connecting beam in the two sections of bottom beam.

[0003] The existing trackless cantilever bottom beam generally sets the accommodating chamber of connecting beam at four corners, so that when the sections are connected, four connecting beams need to be aligned at the same time, so that the operation difficulty is increased. And the top of the bottom beam is bolted with two connecting beams and the door body at the same time, so the amount of bolt used is large, and the pressure on the bottom beam is large. Therefore, the structure design of the bottom beam needs to maintain the bearing capacity and reduce the weight of the bottom beam, so as to reduce the load of the driving and linkage components, and finally prolong the service life of the whole sliding door. SUMMARY

[0004] The purpose of the present application is to provide a new trackless cantilever door bottom beam structure, which aims at solving the problems existing in the prior art.

[0005] The application provides a new trackless cantilever door bottom beam structure, which comprises a bottom beam profile, a linkage cavity is arranged in the middle of the bottom beam profile, an inlet is arranged at the bottom of the linkage cavity, a truncated horizontal plate is fixed at the top of the linkage cavity, a chain cavity with an open bottom is fixed in the center of the horizontal plate, a top connecting cavity is arranged at the upper part of the chain cavity, a foot connecting cavity is arranged on each side of the inlet of the linkage cavity, a downward recessed groove is arranged at the bottom of the foot connecting cavity, a baffle is arranged on the outside of one of the foot connecting cavities, and a gap is arranged between the baffle and the foot connecting cavity, two bases are symmetrically arranged on the top of the bottom beam profile, steps are arranged on the two bases, an insertion slot is formed below the steps, and a seat groove is formed above the steps.

[0006] Further, two vertical plates are symmetrically arranged on the upper part of the horizontal plate, the top connecting cavity is arranged between the two vertical plates, and the two vertical plates are collinear with the two bases.

[0007] Further, the top connecting cavities are symmetrically arranged on the left and right sides of the connecting cavities, and each of the top connecting cavities comprises a first straight section and a second straight section connected to the first straight section through an inwardly inclined inclined section.

[0008] Further, the left and right sides of the linkage cavities are symmetrical, and each of the linkage cavities comprises a first straight section and a second straight section connected to the first straight section through an inwardly inclined inclined section.

[0009] Further, the inner side of the foot connecting cavities is provided with an inclined panel, and the inclined panels of the two foot connecting cavities are symmetrical about the center line, so that the inlet is in the shape of an isosceles trapezoid.

[0010] The beneficial effects of the utility model are as follows: the utility model discloses a triangularly distributed top connecting cavity and foot connecting cavity, so that the connection between the bottom beams can be achieved by only three connecting beams, and the three connecting beams also have good stability, so that the bearing capacity of the bottom beams can be increased. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is a cross-sectional structure schematic view of the utility model.

[0012] Figure 2 It is a cross-sectional structure schematic view of the utility model after installing the cantilever door body and the connecting beam.

[0013] In the drawing:

[0014] 1, base; 2, step; 3, slot; 4, seat groove; 5, cantilever door body; 6, linkage cavity; 7, inlet; 8, horizontal plate; 9, chain cavity; 10, top connecting cavity; 11, vertical plate; 12, shoulder cavity; 13, first straight section; 14, inclined section; 15, second straight section; 16, foot connecting cavity; 17, sink groove; 18, inclined panel; 19, baffle; 20, interval groove; 21, limiting plate; 22, upper connecting beam; 23, lower connecting beam. DETAILED DESCRIPTION

[0015] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0016] For example, Figure 1The bottom beam structure of a novel trackless cantilever door shown includes a bottom beam profile integrally formed of aluminum alloy or magnesium-aluminum alloy.

[0017] The top of the bottom beam profile is symmetrically provided with two bases 1 in the midline, and steps 2 are provided on the two bases 1 opposite to each other, a slot 3 is formed below the step 2, and a seat groove 4 is formed above the step 2. The seat groove 4 and the slot 3 are used to install the cantilever door body 5.

[0018] A linkage cavity 6 is located in the middle of the bottom beam profile, with the largest cross-sectional area. An inlet 7 is located at the bottom of the linkage cavity 6. A truncated cross plate 8 is fixed to the top of the linkage cavity 6. A chain cavity 9 with an open bottom and a rectangular cross-section is fixed to the center of the cross plate 8. A top connection cavity 10 is located above the chain cavity 9. The cross-sectional width of the top connection cavity 10 is greater than that of the chain cavity 9. Therefore, the middle of the top connection cavity 10 is adjacent to the chain cavity 9, and the top connection cavity 10 and the linkage cavity 6 are adjacent on both sides of the chain cavity 9.

[0019] Two vertical plates 11 are symmetrically arranged above the horizontal plate 8, aligned with the two bases 1. These plates 11 divide the area above the linkage cavity 6 into three sections: a top connection cavity 10 between the two plates 11 and a shoulder cavity 12 outside the two plates 11. The shoulder cavities 12 are symmetrically arranged on either side of the top connection cavity 10. The outer sides of the shoulder cavities 12 have inclined surfaces, giving them a right-angled trapezoidal shape, giving the entire bottom beam a triangular cross-section. These shoulder cavities reduce the overall weight of the bottom beam and increase its load-bearing capacity.

[0020] The left and right sides of the linkage cavity 6 are symmetrical, each including a first straight section 13. A second straight section 15 is connected to the center of the first straight section 13 by an inwardly inclined oblique section 14. The triangular structure of oblique section 14 increases the load-bearing capacity and deformation resistance of the bottom beam profile, thereby extending its lifespan.

[0021] A foot connection cavity 16 is provided on each side of the inlet 7 of the linkage cavity 6. The bottom of each foot connection cavity 16 is provided with an upwardly concave groove 17. An inclined panel 18 is provided inside the foot connection cavity 16. The inclined panels 18 of the two foot connection cavities 16 are symmetrical about the midline, and the inlet 7 is formed into an isosceles trapezoid by the two inclined panels 18.

[0022] A baffle 19 is located outside one of the foot connection chambers 16, with a slot 20 separating the baffle 19 and the foot connection chamber 16. Baffle 19 is used to mount a rack, and slot 20 is used to secure the rack. The rack meshes with a motor gear mounted on the gantry, driving the entire machine.

[0023] The bottom of the cantilever door body 5 is fixedly connected with a steel limiting plate 21, and the limiting plate 21 and the cantilever door body 5 have a spacing matching with the step 2.

[0024] As shown in Figure 2 The bottom of the cantilever door body 5 is fixedly connected with a steel limiting plate 21, and the limiting plate 21 and the cantilever door body 5 have a spacing matching with the step 2.

[0025] The connecting beam connecting the adjacent two cantilever door bodies 5 is divided into an upper connecting beam 22 and a lower connecting beam 23.

[0026] It is apparent for those skilled in the art that the present application is not limited to the details of the above-described exemplary embodiments, but rather that the present application can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. The embodiments should, therefore, be considered in all respects as illustrative and not restrictive.

Claims

1. A new type of bottom beam structure of a trackless cantilever door, characterized in that, The application relates to a bottom beam profile, which is provided with a linkage cavity in the middle part, the bottom of the linkage cavity is provided with an inlet, the top of the linkage cavity is fixed with a truncated horizontal plate, the central part of the horizontal plate is fixed with a chain cavity with an open bottom, the upper part of the chain cavity is provided with a top connecting cavity, the two sides of the linkage cavity inlet are respectively provided with a foot connecting cavity, the bottom of the foot connecting cavity is provided with an upwardly recessed sinking groove, the outside of one of the foot connecting cavities is provided with a baffle, and the baffle is spaced apart from the foot connecting cavity by a gap, the top of the bottom beam profile is provided with two bases in the middle line symmetry, the two bases are oppositely provided with steps, the steps are provided with an insertion groove below and a seat groove above.

2. The new type of bottom beam structure of a railless cantilever door according to claim 1, characterized in that, The upper part of the horizontal plate is provided with two vertical plates in the middle line symmetry, the top connecting cavity is between the two vertical plates, and the two vertical plates are collinear with the two bases.

3. The new type of bottom beam structure of a railless cantilever door according to claim 2, characterized in that, The left and right sides of the top connecting cavity are symmetrically provided with shoulder cavities, the outer side of the shoulder cavities is provided with an inclined surface so that the shoulder cavities are in the shape of a right-angled trapezoid.

4. The new type of bottom beam structure of a trackless cantilever door according to claim 3, characterized in that, The left and right sides of the linkage cavity are symmetrical, and each comprises a first straight section, a second straight section is connected to the middle part of the first straight section through an inwardly inclined inclined section.

5. The new type of trackless cantilever door bottom beam structure according to claim 4, characterized in that, The inner side of the foot connecting cavity is provided with an inclined surface plate, the inclined surface plates of the two foot connecting cavities are in the middle line symmetry, and the inlet is in the shape of an isosceles trapezoid through the two inclined surface plates.

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