Stable supporting rotating shaft for heavy door

Abstract

The utility model belongs to the technical field of heavy door supporting, and particularly discloses a stable supporting rotating shaft for a heavy door, which comprises a bottom plate, a reinforced supporting rotating shaft and a door plate connecting seat, a mounting cavity is formed in the upper surface of the bottom plate, the mounting cavity is hollow and internally concave, the lower side of the interior of the mounting cavity is in a cambered surface shape, the upper portion of the mounting cavity is open, the lower side of the outer wall of the reinforcing supporting rotating shaft is movably sleeved with a lower supporting plate, and the lower side of the lower supporting plate is connected to the opening of the upper portion of the mounting cavity. And an arc-shaped rotating contact surface is arranged at the bottom end of the reinforced supporting rotating shaft. In actual use, the door plate connecting seat is directly connected with the heavy door to play a role in supporting and bearing, the lower reinforcing and supporting rotating shaft is in direct contact with the cambered surface of the mounting cavity through the arc-shaped rotating contact surface, the contact area is large, the reinforcing and supporting rotating shaft is relatively stable during rotation, and the friction force during rotation is reduced in a manner of coating a lubricating coating.

Description

Technical Field

[0001] The utility model relates to the technical field of heavy-duty door supports, in particular to a stable supporting rotating shaft for heavy-duty doors. Background Art

[0002] A door is a covering at the entrance and exit of a house. It is usually installed in the doorway of a room and is used to close or open the room to achieve controllable isolation.

[0003] Heavy doors refer to doors with a heavier overall weight, such as large iron doors in public areas, water-stopping metal gates, etc. They are heavier than ordinary household doors.

[0004] In actual use, due to the heavy weight of heavy doors, ordinary shafts are prone to wear and deformation when supporting them, and the supporting shafts of the doors are usually directly supported in the shaft seats, and the friction of the contact surfaces is relatively large. Due to the heavy weight of the heavy doors themselves, the opening and closing operations of the heavy doors are relatively laborious. Utility Model Content

[0005] The purpose of the utility model is to provide a stable supporting shaft for heavy-duty doors, so as to solve the problem raised in the above-mentioned background technology that due to the heavy weight of heavy-duty doors, ordinary shafts are prone to wear, deformation, etc. when supporting them, and the supporting shaft of the door is usually directly supported in the shaft seat, the friction of the contact surface is relatively large, and due to the heavy weight of the heavy door itself, the opening and closing operation of the heavy door is relatively laborious.

[0006] To achieve the above purpose, the utility model provides the following technical solution: a stable support shaft for a heavy door, comprising:

[0007] A bottom plate, wherein an installation cavity is provided on the upper surface of the bottom plate, the installation cavity is hollow and has a concave interior, the lower side of the interior of the installation cavity is an arc surface, and the upper portion of the installation cavity is an opening;

[0008] A reinforced support shaft, wherein a lower support plate is movably sleeved on the lower side of the outer wall of the reinforced support shaft, and the lower side of the lower support plate is connected to the upper opening of the installation cavity, and an arc-shaped rotating contact surface is provided at the bottom end of the reinforced support shaft, and the arc-shaped rotating contact surface is in contact with the arc surface of the lower side of the installation cavity, and a lubricating coating is applied between the arc-shaped rotating contact surface and the arc surface of the installation cavity;

[0009] A door panel connecting seat is fixedly connected to the top end of the reinforced support shaft.

[0010] Preferably, a support bearing is embedded in the interior of the lower support plate, and the support bearing is sleeved on the outer wall of the reinforced support shaft.

[0011] Preferably, a lower supporting layer is provided at the arc surface on the lower side of the installation cavity, the lower supporting layer is configured to be in a shape that fits the arc-shaped rotating contact surface, and the lower supporting layer is made of polytetrafluoroethylene.

[0012] Preferably, the door panel connecting seat includes a door body support plate connected to the top end of the reinforcing support shaft, and a side support plate connected to the front and rear sides of the upper surface of the door body support plate, and pin holes are opened at corresponding positions on the side support plates on both sides.

[0013] Preferably, the side support plate, the door support plate and the reinforcing support shaft are integrally formed.

[0014] Preferably, a reinforcing rib plate is welded to the upper side of the outer wall of the reinforcing support shaft, and the upper side of the reinforcing rib plate is welded to the door panel connecting seat.

[0015] Preferably, the left side wall of the door body support plate extends to the left, an auxiliary leg is connected to the lower left side of the door body support plate, a ball is rotatably connected to the bottom end of the auxiliary leg, and a slide groove corresponding to the movement trajectory of the ball is opened on the bottom plate.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] In actual use, the door panel connecting seat is directly connected to the heavy door to play a supporting and load-bearing role. The lower side reinforced support shaft is in direct contact with the arc surface of the installation cavity through the arc-shaped rotating contact surface. The contact area is large, and the reinforced support shaft is relatively stable when rotating. The friction during rotation is reduced by applying a lubricating coating. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the utility model after removing the door panel connecting seat;

[0020] Figure 3 For this utility model Figure 2 Schematic diagram of the split structure;

[0021] Figure 4 It is a schematic diagram of the structure of the utility model when in use.

[0022] In the figure: 1. bottom plate; 2. installation cavity; 3. lower support plate; 4. lower support layer; 5. arc-shaped rotating contact surface; 6. reinforced support shaft; 7. reinforcing rib plate; 8. door support plate; 9. side support plate; 10. pin hole; 11. auxiliary support leg; 12. ball bearing; 13. slide groove. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0025] Embodiment 1:

[0026] See also Figure 1-4 , the utility model provides a technical solution: a stable support shaft for heavy doors, comprising: a bottom plate 1, a reinforced support shaft 6, and a door panel connecting seat;

[0027] The upper surface of the base plate 1 is provided with an installation cavity 2, which is hollow and concave inside. The lower side of the inner part of the installation cavity 2 is an arc-shaped surface, and the upper part of the installation cavity 2 is an opening. The lower side of the outer wall of the reinforced support shaft 6 is movably sleeved with a lower support plate 3, and the lower side of the lower support plate 3 is connected to the upper opening of the installation cavity 2. The bottom end of the reinforced support shaft 6 is provided with an arc-shaped rotating contact surface 5, which fits with the arc-shaped rotating contact surface 5 on the lower side of the inner part of the installation cavity 2, and a lubricating coating is applied between the arc-shaped rotating contact surface 5 and the arc-shaped surface of the installation cavity 2, and the door panel connecting seat is fixedly connected to the top of the reinforced support shaft 6.

[0028] Analysis of the above content: When in use, connect one side of the lower surface of the heavy-duty door to the door panel connecting seat, and fix the bottom plate 1 at the corresponding position on the ground. When rotation is required, rotate the heavy-duty door, and the heavy-duty door drives the door panel connecting seat, the reinforced support shaft 6, and the arc-shaped rotating contact surface 5 to rotate. The arc-shaped rotating contact surface 5 rotates relative to the arc surface on the lower side of the installation cavity 2. The reinforced support shaft 6 is restricted by the lower support plate 3 and is not easy to tilt. The setting of the lubricating coating can reduce friction.

[0029] Embodiment 2:

[0030] See also Figure 1-4The utility model provides a technical solution based on the first embodiment: a support bearing is embedded in the interior of the lower support plate 3 , and the support bearing is sleeved on the outer wall of the reinforced support shaft 6 .

[0031] Analysis of the above content: Through the setting of the support bearing, the rotation of the strengthening support shaft 6 is relatively stable, and the sliding friction between the strengthening support shaft 6 and the lower support plate 3 is converted into rolling friction.

[0032] Embodiment three:

[0033] See also Figure 1-4 The utility model provides a technical solution based on the first embodiment: a lower support layer 4 is arranged on the arc surface on the lower side of the installation cavity 2, and the lower support layer 4 is arranged to be in a shape that fits the arc-shaped rotating contact surface 5, and the lower support layer 4 is made of polytetrafluoroethylene.

[0034] Analysis of the above content: Polytetrafluoroethylene material can achieve a smooth surface. In the current rotation of the viaduct piers, polytetrafluoroethylene material is usually used as support on the lower side (existing technology, which will not be repeated here).

[0035] Embodiment 4:

[0036] See also Figure 1-4 The utility model provides a technical solution based on the first embodiment: the door panel connecting seat includes a door body support plate 8 connected to the top of the reinforcing support shaft 6, and a side support plate 9 connected to the front and rear sides of the upper surface of the door body support plate 8, and pin holes 10 are provided at corresponding positions on the side support plates 9 on both sides. The side support plate 9, the door body support plate 8, and the reinforcing support shaft 6 are integrally formed. The left side wall of the door body support plate 8 extends to the left, and the lower left side of the door body support plate 8 is connected to an auxiliary support leg 11, and the bottom end of the auxiliary support leg 11 is rotatably connected to a ball 12, and a slide groove 13 corresponding to the movement trajectory of the ball 12 is provided on the bottom plate 1.

[0037] Analysis of the above content: the side support plate 9, the door support plate 8, and the reinforced support shaft 6 adopt the existing high-strength steel structure. When the heavy door is installed, the auxiliary legs 11 and the ball bearings 12 are supported in the slide groove 13, so that the lower surface of the heavy door is further supported.

[0038] Embodiment five:

[0039] See also Figure 1-4 The utility model provides a technical solution based on the first embodiment: a reinforcing rib plate 7 is welded to the upper side of the outer wall of the reinforcing support shaft 6, and the upper side of the reinforcing rib plate 7 is welded to the door panel connecting seat.

[0040] Analyzing the above contents: the reinforcing rib plate 7 further strengthens the connection between the supporting shaft 6 and the door panel connecting seat.

[0041] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be implemented in other specific forms without departing from the spirit or basic features of the utility model; therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description. Therefore, it is intended to include all changes within the meaning and scope of the equivalent elements of the claims in the utility model, and any figure marks in the claims should not be regarded as limiting the claims involved.

[0042] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A stable support shaft for heavy doors, characterized in that: include: A bottom plate (1), wherein the upper surface of the bottom plate (1) is provided with a mounting cavity (2), the mounting cavity (2) is hollow and has a concave interior, the lower side of the interior of the mounting cavity (2) is in the shape of an arc surface, and the upper portion of the mounting cavity (2) is in the shape of an opening; A reinforced support shaft (6), wherein a lower support plate (3) is movably sleeved on the lower side of the outer wall of the reinforced support shaft (6), and the lower side of the lower support plate (3) is connected to the upper opening of the installation cavity (2). An arc-shaped rotating contact surface (5) is provided at the bottom end of the reinforced support shaft (6), and the arc-shaped rotating contact surface (5) is in contact with the arc surface on the lower side of the interior of the installation cavity (2), and a lubricating coating is applied between the arc-shaped rotating contact surface (5) and the arc surface of the installation cavity (2); A door panel connecting seat, wherein the door panel connecting seat is fixedly connected to the top end of the reinforcing support rotating shaft (6).

2. A stable support shaft for a heavy-duty door according to claim 1, characterized in that: A support bearing is embedded in the interior of the lower support plate (3), and the support bearing is sleeved on the outer wall of the reinforced support shaft (6).

3. A stable support shaft for a heavy door according to claim 1, characterized in that: A lower support layer (4) is provided on the arc surface at the lower side of the installation cavity (2), the lower support layer (4) is configured to be in a shape that fits the arc-shaped rotating contact surface (5), and the lower support layer (4) is made of polytetrafluoroethylene.

4. A stable support shaft for a heavy-duty door according to claim 1, characterized in that: The door panel connecting seat comprises a door body supporting plate (8) connected to the top end of the reinforcing support shaft (6), and a side supporting plate (9) connected to the front and rear sides of the upper surface of the door body supporting plate (8), and pin holes (10) are provided at corresponding positions on the side supporting plates (9) on both sides.

5. A stable support shaft for a heavy-duty door according to claim 4, characterized in that: The side support plate (9), the door body support plate (8) and the reinforcing support shaft (6) are integrally formed.

6. A stable support shaft for a heavy-duty door according to claim 1, characterized in that: A reinforcing rib plate (7) is welded to the upper side of the outer wall of the reinforcing support shaft (6), and the upper side of the reinforcing rib plate (7) is welded to the door panel connecting seat.

7. A stable support shaft for a heavy-duty door according to claim 4 or 5, characterized in that: The left side wall of the door body support plate (8) extends to the left, and the lower left side of the door body support plate (8) is connected to an auxiliary support leg (11), the bottom end of the auxiliary support leg (11) is rotatably connected to a ball (12), and a slide groove (13) corresponding to the movement trajectory of the ball (12) is provided on the bottom plate (1).

Images