Convenient gravity back-closing revolving door

Abstract

The convenient gravity back-closing revolving door comprises a hollow rod rotationally connected to the right side of a door frame, a vertical rod is arranged on the left side of the door frame, a first perforated round cake is rotationally connected to the surface of the vertical rod, a supporting plate is fixedly connected to the surface of the vertical rod, a ratchet wheel is fixedly connected to the bottom of the first perforated round cake, and the ratchet wheel is fixedly connected to the right side of the door frame. The inner cavity of the ratchet wheel is rotatably connected with the surface of the vertical rod, the top of the supporting plate is rotatably connected with a dart-shaped piece, the right end of the dart-shaped piece is meshed with the surface of the ratchet wheel, and the inner cavity of the hollow rod is provided with an extension structure. The bolt is screwed to fix the position of the connecting rod after sliding, and then the round bar is placed in the inner cavity of the first perforated round cake, so that the purpose of changing the rotation speed of the door frame by changing the inclination angle of the connecting rod can be achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of revolving doors, in particular to a convenient gravity-returning revolving door. Background Art

[0002] A gravity-return revolving door is a door that relies on its own gravity to automatically close after opening.

[0003] The gravity return revolving door mainly relies on the cooperation between the oblique connecting rod and the hole circular cake 1, as well as the cooperation of its own gravity to achieve self-rotation and closing of the door. In order to change the inclination angle of the connecting rod so that the speed of the door frame rotation can be changed, a convenient gravity return revolving door is designed. The device can rotate the hole circular cake 1 and fix the position of the hole circular cake 1 after rotation through the setting of the hole circular cake 1 and the ratchet. At the same time, the setting of the extension structure can extend the connecting rod. At the same time, with the cooperation of the hole circular cake 1 after rotation, the inclination angle of the connecting rod can be changed, that is, the inclination angle of the connecting rod can be changed to change the speed of the door frame rotation. Utility Model Content

[0004] The purpose of the utility model is to provide a convenient gravity-return revolving door, which has the function of changing the inclination angle of the connecting rod to change the speed of the door frame rotation, so as to solve the above-mentioned background technical problems.

[0005] The technical solution of the utility model for solving the above-mentioned technical problems is as follows: a convenient gravity return revolving door, which includes a hollow rod rotatably connected to the right side of the door frame: a vertical rod is provided on the left side of the door frame, the surface of the vertical rod is rotatably connected to a perforated circular cake, the surface of the vertical rod is fixedly connected to a support plate, the bottom of the perforated circular cake is fixedly connected to a ratchet, the inner cavity of the ratchet is rotatably connected to the surface of the vertical rod, the top of the support plate is rotatably connected to a dart-shaped piece, the right end of the dart-shaped piece is engaged with the surface of the ratchet, and the inner cavity of the hollow rod is provided with an extension structure.

[0006] Preferably, the extension structure includes a connecting rod slidably connected to the inner cavity of the hollow rod, a round rod is fixedly connected to the left side of the connecting rod, and the surface of the round rod is rotatably connected to the inner cavity of the perforated circular cake.

[0007] Preferably, a limiting groove is provided on the top of the connecting rod, a screw hole is provided on the top of the hollow rod, and a bolt is threadedly connected to the inner cavity of the screw hole.

[0008] Preferably, the surface of the bolt passes through the inner cavity of the limiting groove and is rotatably connected to the inner cavity of the limiting groove. The bottom end of the bolt is fixedly connected to a rubber head, and the surface of the rubber head is rotatably connected to the inner cavity of the limiting groove.

[0009] Preferably, a spring sheet is fixedly connected to the top of the support plate, the rear end of the spring sheet is fixedly connected to the dart-shaped sheet, and a second hole circular cake is fixedly connected to the surface of the vertical pole, and the second hole circular cake is located directly above the first hole circular cake.

[0010] Preferably, a connecting head is fixedly connected to the surface of the second perforated circular cake, the door frame is rotatably connected to the connecting head, a circular cake upright is provided on the right side of the door frame, a limiting plate is fixedly connected to the right side of the door frame, and the limiting plate abuts against the surface of the circular cake upright.

[0011] The beneficial effects of the utility model are:

[0012] 1. The utility model pulls the connecting rod to slide in the inner cavity of the hollow rod. When the length of the connecting rod is appropriate, the bolt is tightened to fix the position of the connecting rod after sliding. Then, the round rod is placed in the inner cavity of the hole round cake to change the inclination angle of the connecting rod, thereby changing the rotation speed of the door frame.

[0013] 2. The present invention can increase the contact area between the bolt and the inner wall of the limiting groove and the friction between the bolt and the limiting groove by providing the rubber head, so as to achieve a better fixing effect of the connecting rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] in:

[0015] Figure 1 This is a front view schematic diagram of an embodiment of the utility model;

[0016] Figure 2 This is a rear view schematic diagram of an embodiment of the utility model;

[0017] Figure 3 This is a schematic diagram of a pole according to an embodiment of the present utility model;

[0018] Figure 4 This is a schematic diagram of an extended structure of an embodiment of the utility model;

[0019] Figure 5 This is an embodiment of the utility model Figure 1 A partial enlarged view of point A;

[0020] Figure 6 This is an embodiment of the utility model Figure 2 A partial enlarged view of point B in the middle.

[0021] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0022] 1. Door frame, 2. Hollow rod, 3. Vertical rod, 4. Perforated round cake 1, 5. Support plate, 6. Ratchet, 7. Dart-shaped piece, 8. Extension structure, 81. Connecting rod, 82. Round rod, 83. Limiting groove, 84. Bolt, 85. Rubber head, 9. Spring sheet, 10. Perforated round cake 2, 11. Connecting head, 12. Round cake vertical rod, 13. Limiting plate. DETAILED DESCRIPTION

[0023] Hereinafter, embodiments of the convenient gravity-return-closing revolving door of the present invention will be described with reference to the accompanying drawings. Example 1:

[0024] Figure 1-6 The utility model shows a convenient gravity return revolving door of an embodiment, which includes: a hollow rod 2 rotatably connected to the right side of the door frame 1; a vertical rod 3 is provided on the left side of the door frame 1, the surface of the vertical rod 3 is rotatably connected to the open hole round cake 4, the surface of the vertical rod 3 is fixedly connected to the support plate 5, the bottom of the open hole round cake 4 is fixedly connected to the ratchet 6, the inner cavity of the ratchet 6 is rotatably connected to the surface of the vertical rod 3, the top of the support plate 5 is rotatably connected to the dart-shaped piece 7, the right end of the dart-shaped piece 7 is engaged with the surface of the ratchet 6, the inner cavity of the hollow rod 2 is provided with an extension structure 8, the extension structure 8 includes a connecting rod 81 slidably connected to the inner cavity of the hollow rod 2, and the left side of the connecting rod 81 is fixedly connected to a round rod 82, the surface of the round rod 82 is rotatably connected to the inner cavity of the perforated round cake 4, a limiting groove 83 is provided on the top of the connecting rod 81, a screw hole is provided on the top of the hollow rod 2, and a bolt 84 is threadedly connected to the inner cavity of the screw hole. The surface of the bolt 84 passes through the inner cavity of the limiting groove 83 and is rotatably connected to the inner cavity of the limiting groove 83. The bottom end of the bolt 84 is fixedly connected to a rubber head 85. Through the setting of the rubber head 85, the contact area between the bolt 84 and the inner wall of the limiting groove 83 can be increased, and the friction between the bolt 84 and the limiting groove 83 can be increased, so that the connecting rod 81 can obtain a better fixing effect, and the surface of the rubber head 85 is rotatably connected to the inner cavity of the limiting groove 83. Example 2:

[0025] Figure 1-6The utility model shows a convenient gravity return revolving door of an embodiment, which includes: a hollow rod 2 rotatably connected to the right side of the door frame 1; a vertical rod 3 is provided on the left side of the door frame 1, the surface of the vertical rod 3 is rotatably connected to the open hole round cake 4, the surface of the vertical rod 3 is fixedly connected to the support plate 5, the bottom of the open hole round cake 4 is fixedly connected to the ratchet 6, the inner cavity of the ratchet 6 is rotatably connected to the surface of the vertical rod 3, the top of the support plate 5 is rotatably connected to the dart-shaped piece 7, the right end of the dart-shaped piece 7 is engaged with the surface of the ratchet 6, and the inner cavity of the hollow rod 2 is rotatably connected to the surface of the vertical rod 3. An extension structure 8 is provided, a spring sheet 9 is fixedly connected to the top of the support plate 5, the rear end of the spring sheet 9 is fixedly connected to the dart-shaped sheet 7, the surface of the vertical rod 3 is fixedly connected to the open hole round cake 2 10, the open hole round cake 2 10 is located directly above the open hole round cake 1 4, the surface of the open hole round cake 2 10 is fixedly connected to the connecting head 11, the door frame 1 is rotatably connected to the connecting head 11, a round cake vertical rod 12 is provided on the right side of the door frame 1, and a limiting plate 13 is fixedly connected to the right side of the door frame 1, and the limiting plate 13 is in contact with the surface of the round cake vertical rod 12.

[0026] Working principle: When the present invention is used, the user rotates the hole-opening circular cake 4. At this time, under the action of the ratchet 6 and the dart-shaped piece 7, the rotation position of the hole-opening circular cake 4 can be fixed in real time. Then the bolt 84 is screwed to make the surface of the bolt 84 disengage from the inner cavity of the limiting groove 83, and then the connecting rod 81 is pulled to slide in the inner cavity of the hollow rod 2. When the length of the connecting rod 81 is appropriate, the bolt 84 is screwed back to fix the position of the connecting rod 81 after sliding. Then the round rod 82 is placed in the inner cavity of the hole-opening circular cake 4, and the inclination angle of the connecting rod 81 is changed. The inclination angle of the connecting rod 81 can be changed to change the rotation speed of the door frame 1.

[0027] To sum up: this convenient gravity-return revolving door is achieved by pulling the connecting rod 81 to slide in the inner cavity of the hollow rod 2. When the length of the connecting rod 81 is appropriate, the bolt 84 is tightened to fix the position of the connecting rod 81 after sliding. Then, the round rod 82 is placed in the inner cavity of the perforated circular cake 4 to change the inclination angle of the connecting rod 81, thereby changing the rotation speed of the door frame 1.

Claims

1. A convenient gravity-return revolving door, characterized in that: The invention comprises a hollow rod (2) rotatably connected to the right side of the door frame (1): a vertical rod (3) is provided on the left side of the door frame (1), a hole-perforated circular disc (4) is rotatably connected to the surface of the vertical rod (3), a support plate (5) is fixedly connected to the surface of the vertical rod (3), a ratchet (6) is fixedly connected to the bottom of the hole-perforated circular disc (4), an inner cavity of the ratchet (6) is rotatably connected to the surface of the vertical rod (3), a dart-shaped piece (7) is rotatably connected to the top of the support plate (5), the right end of the dart-shaped piece (7) is engaged with the surface of the ratchet (6), and an extension structure (8) is provided in the inner cavity of the hollow rod (2).

2. A convenient gravity-return revolving door according to claim 1, characterized in that: The extension structure (8) includes a connecting rod (81) slidably connected to the inner cavity of the hollow rod (2), a round rod (82) is fixedly connected to the left side of the connecting rod (81), and the surface of the round rod (82) is rotatably connected to the inner cavity of the perforated circular cake (4).

3. A convenient gravity-return revolving door according to claim 2, characterized in that: A limiting groove (83) is provided at the top of the connecting rod (81), a screw hole is provided at the top of the hollow rod (2), and a bolt (84) is threadedly connected to the inner cavity of the screw hole.

4. A convenient gravity-return revolving door according to claim 3, characterized in that: The surface of the bolt (84) penetrates the inner cavity of the limiting groove (83) and is rotatably connected to the inner cavity of the limiting groove (83). The bottom end of the bolt (84) is fixedly connected to a rubber head (85), and the surface of the rubber head (85) is rotatably connected to the inner cavity of the limiting groove (83).

5. A convenient gravity-return revolving door according to claim 1, characterized in that: The top of the support plate (5) is fixedly connected to a spring sheet (9), the rear end of the spring sheet (9) is fixedly connected to the dart-shaped sheet (7), and the surface of the vertical rod (3) is fixedly connected to a second hole circular cake (10), and the second hole circular cake (10) is located directly above the first hole circular cake (4).

6. A convenient gravity-return revolving door according to claim 5, characterized in that: The surface of the second perforated circular cake (10) is fixedly connected with a connecting head (11), the door frame (1) is rotatably connected to the connecting head (11), a circular cake upright pole (12) is provided on the right side of the door frame (1), and a limiting plate (13) is fixedly connected to the right side of the door frame (1), and the limiting plate (13) contacts the surface of the circular cake upright pole (12).

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