Force-adjustable 360-degree rotating huge heavy floor spring

Abstract

The utility model discloses a force-adjustable 360-degree rotating huge heavy floor spring which comprises a ground shell and an iron box, the ground shell is arranged in the iron box, a bearing base is fixedly installed at the bottom of the left side of the ground shell, a guide shaft is rotatably connected to the bearing base, and the guide shaft vertically penetrates through the iron box. The guide shaft is rotationally matched with the upper pull piece, the large roller and the lower pull piece to drive the pull rod to move, so that the pull rod is matched with the piston pin to drive the piston to be matched with the Glyd ring to move along the inner wall of the earth crust, steering of the guide shaft is effectively buffered, and the force adjusting screw is driven by the force adjusting screw to be matched with the force adjusting claw and the force adjusting stop block for fine adjustment. The steering buffering force of the guide shaft can be conveniently adjusted according to actual needs, the structure is simple and practical, the force adjusting screw drives the force adjusting screw rod to be finely adjusted, and the first spring on the spring seat and the second spring on the force adjusting stop block are compressed, so that the first spring is matched with the second spring to provide buffering for the force adjusting screw rod; and the damage to the force adjusting screw rod in the force adjusting process is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to ground spring technical field especially relates to a 360 degree rotation's giant heavy ground spring of adjustable force. BACKGROUND

[0002] Ground spring is a kind of hydraulic door closer, only its compression spring device is worm gear instead of gear rack, so ground spring can be used for bidirectional opening door, and door closer can only be used for unidirectional opening door, because ground spring for bidirectional opening door bears the weight of door body, and the weight of door body plays a decisive role in the selection of ground spring.

[0003] The existing 360 degree rotation's giant heavy ground spring lacks pull rod force adjusting structure when being actually used, is inconvenient to adjust guide shaft steering speed according to actual needs, and adjusting screw lacks buffering structure, is easily damaged when adjusting force, and the present application provides a 360 degree rotation's giant heavy ground spring of adjustable force to solve the above problems. UTILITY MODEL CONTENTS

[0004] In view of the deficiencies and defects in the prior art, the utility model provides a 360 degree rotation's giant heavy ground spring of adjustable force to solve the technical problems that the existing 360 degree rotation's giant heavy ground spring lacks pull rod force adjusting structure when being actually used, is inconvenient to adjust guide shaft steering speed according to actual needs, and adjusting screw lacks buffering structure, is easily damaged when adjusting force.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A 360 degree rotation's giant heavy ground spring of adjustable force, including ground crust and iron box, the ground crust is arranged in the iron box, the left side bottom of the ground crust is fixedly installed with bearing base, the bearing base is rotatably connected with guide shaft, the guide shaft is vertically through the iron box, the iron box is provided with an insert sheet and a dustproof panel on the upper end of the guide shaft side, the top surface of the ground crust opposite the guide shaft is fixedly installed with a large cover, the lower end of the large cover is fixedly installed with a deep groove ball bearing, the guide shaft is vertically rotatably through the deep groove ball bearing and the large cover, one end of the guide shaft in the ground crust is provided with a transmission mechanism, the transmission mechanism is provided with a pull rod, the pull rod is movably sleeved with a piston mechanism, the right end side wall of the ground crust is provided with a tail cover, the tail cover is horizontally and threadedly through with a force adjusting screw, and the piston mechanism and the force adjusting screw are provided with a force adjusting mechanism.

[0007] Preferably, the transmission mechanism includes a large roller fixedly sleeved on the guide shaft in the ground crust, the upper and lower ends of the large roller are respectively provided with an upper pull sheet and a lower pull sheet, the upper pull sheet, the large roller and the lower pull sheet are connected and fixed by a pull sheet pin, and the pull rod is fixedly connected with the upper pull sheet and the lower pull sheet by a pull sheet screw.

[0008] Preferably, the upper end of the deep groove ball bearing is provided with a central shaft O-ring, and a large cover O-ring is provided between the large cover and the earth's crust.

[0009] Preferably, the piston mechanism includes a piston disposed on the end of the pull rod away from the large roller, a Gladwell ring provided on the annular sidewall of the piston, the piston and the pull rod being connected and fixed by a piston pin, a spring seat provided on the end of the piston away from the pull rod, a first spring being fixedly connected to the spring seat, and the first spring being associated with the force adjustment mechanism.

[0010] Preferably, the force adjustment mechanism includes a force adjustment screw fixedly connected to one end of the force adjustment screw located inside the earth's crust, a first spring sleeved on the force adjustment screw, a force adjustment claw fixedly connected to the inner wall of the earth's crust on one side of the force adjustment screw, a force adjustment stop block provided between the force adjustment claw and the force adjustment screw, a flat washer provided at the left end of the force adjustment stop block, a second spring fixedly connected to the left end of the force adjustment stop block, the second spring sleeved on the force adjustment screw, and a tail cap O-ring provided between the force adjustment screw and the tail cap.

[0011] Preferably, the central shaft O-ring, the large cover O-ring, and the tail cover O-ring are all made of nitrile rubber.

[0012] Compared with the prior art, the advantages of this utility model are as follows:

[0013] 1. The guide shaft rotates in conjunction with the upper pull plate, large roller, and lower pull plate to drive the pull rod to move. This causes the pull rod, in conjunction with the piston pin, to drive the piston in conjunction with the Gladius ring to move along the inner wall of the earth's crust, effectively buffering the rotation of the guide shaft. The force adjustment screw drives the force adjustment screw rod in conjunction with the force adjustment claw and force adjustment stop block for fine adjustment, making it convenient to adjust the buffering force of the guide shaft rotation according to actual needs. The structure is simple and practical.

[0014] 2. By using the adjusting screw to drive the adjusting screw rod for fine adjustment, the first spring on the spring seat and the second spring on the adjusting stop block are compressed, so that the first spring and the second spring provide a buffer for the adjusting screw rod, avoiding damage to the adjusting screw rod during the adjustment process. Attached Figure Description

[0015] Fig. 1 A front perspective view of a giant heavy-duty floor spring with adjustable force and 360-degree rotation proposed in this utility model.

[0016] Fig. 2 A top-view perspective diagram of a giant heavy-duty floor spring with adjustable force and 360-degree rotation proposed in this utility model.

[0017] Fig. 3 This is a frontal perspective view of the earth's crust of a giant heavy-duty ground spring with adjustable force and 360-degree rotation proposed in this utility model.

[0018] In the diagram: 1. Earth crust, 2. Iron box, 3. Bearing base, 4. Guide shaft, 5. Insert plate, 6. Dustproof panel, 7. Large cover, 8. Deep groove ball bearing, 9. Pull rod, 10. Tail cover, 11. Adjusting screw, 12. Large roller, 13. Upper pull plate, 14. Lower pull plate, 15. Pull plate pin, 16. Pull plate screw, 17. Central shaft O-ring, 18. Large cover O-ring, 19. Piston, 20. Glyd ring, 21. Piston pin, 22. Spring seat, 23. First spring, 24. Adjusting screw, 25. Adjusting claw, 26. Adjusting stop block, 27. Flat washer, 28. Second spring, 29. Tail cover O-ring. Detailed Implementation

[0019] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] Reference Figs. 1-3A heavy-duty floor spring with adjustable force and 360-degree rotation includes a floor shell 1 and an iron box 2. The floor shell 1 is located inside the iron box 2. A bearing base 3 is fixedly installed on the bottom left side of the floor shell 1. A guide shaft 4 is rotatably connected to the bearing base 3. The guide shaft 4 is vertically inserted through the iron box 2. An insert 5 and a dustproof panel 6 are provided on the upper end of the iron box 2 on one side of the guide shaft 4. A large cover 7 is fixedly installed on the top surface of the floor shell 1 opposite to the guide shaft 4. A deep groove ball bearing 8 is fixedly installed on the lower end of the large cover 7. The guide shaft 4 is vertically rotatably inserted through the deep groove ball bearing 8 and the large cover 7. A transmission mechanism is provided at one end of the guide shaft 4 located inside the floor shell 1. The transmission mechanism is equipped with a pull rod 9. The transmission mechanism includes a large roller fixedly sleeved on the guide shaft 4 located inside the floor shell 1. The upper and lower ends of the wheel 12 and the large roller 12 are respectively provided with upper pull plate 13 and lower pull plate 14. After the base shell 1 and the iron box 2 are installed, the guide shaft 4 is fixed on the door frame. When the door is opened and closed, the guide shaft 4 rotates, which in turn drives the pull rod 9 to move in conjunction with the upper pull plate 13, the large roller 12 and the lower pull plate 14. The upper pull plate 13, the large roller 12 and the lower pull plate 14 are connected and fixed by the pull plate pin 15. The pull rod 9 is fixedly connected to the upper pull plate 13 and the lower pull plate 14 by the pull plate screw 16. The pull plate screw 16 is used for the connection and positioning between the pull rod 9, the upper pull plate 13 and the lower pull plate 14. The upper end of the deep groove ball bearing 8 is provided with a central shaft O-ring 17, and the large cover 7 is provided with a large cover O-ring 18 between the base shell 1 and the large cover 7.

[0022] A piston mechanism is movably sleeved on the pull rod 9. The piston mechanism includes a piston 19 located at the end of the pull rod 9 away from the large roller 12. A Gladius ring 20 is provided on the annular side wall of the piston 19. The piston 19 and the pull rod 9 are connected and fixed by a piston pin 21. A spring seat 22 is provided at the end of the piston 19 away from the pull rod 9. A first spring 23 is fixedly connected to the spring seat 22. The first spring 23 is associated with the force adjustment mechanism. When the pull rod 9 moves, it cooperates with the piston pin 21 to drive the piston 19 and the Gladius ring 20 to move along the inner wall of the crust 1, effectively buffering the rotation of the guide shaft 4.

[0023] A tail cap 10 is provided on the right side wall of the crust 1. A force-adjusting screw 11 is threaded through the tail cap 10. A force-adjusting mechanism is provided between the piston mechanism and the force-adjusting screw 11. The force-adjusting mechanism includes a force-adjusting screw rod 24 fixedly connected to one end of the force-adjusting screw 11 located inside the crust 1. A first spring 23 is sleeved on the force-adjusting screw rod 24. A force-adjusting claw 25 is fixedly connected to the inner wall of the crust 1 located on one side of the force-adjusting screw 11. A force-adjusting stop 26 is provided between the force-adjusting claw 25 and the force-adjusting screw 11. By using an external screwdriver in conjunction with the force-adjusting screw 11, the force-adjusting screw rod 24 can be finely adjusted under the limiting action of the force-adjusting claw 25 and the force-adjusting stop 26. This allows for convenient adjustment of the buffer force of the guide shaft 4's rotation according to actual needs. The structure is simple and practical. A flat washer 27 is provided at the left end of the force stop block 26. A second spring 28 is fixedly connected to the left end of the force stop block 26. The second spring 28 is sleeved with the force adjusting screw 11. An external screwdriver, in conjunction with the force adjusting screw 11, drives the force adjusting screw 24 for fine adjustment. This causes the force adjusting screw 24 to drive the piston 19 for fine adjustment and compress the first spring 23 on the spring seat 22 and the second spring 28 on the force stop block 26. This allows the first spring 23 and the second spring 28 to provide a buffer for the force adjusting screw 24, preventing damage to the force adjusting screw 24 during the force adjustment process. A tail cover O-ring 29 is provided between the force adjusting screw 11 and the tail cover 10. The materials of the central shaft O-ring 17, the large cover O-ring 18, and the tail cover O-ring 29 are all nitrile rubber.

[0024] In use, after the base shell 1 and the iron box 2 are installed, the guide shaft 4 is fixed to the door frame. When the door opens and closes, the guide shaft 4 rotates, which, in conjunction with the upper pull plate 13, the large roller 12, and the lower pull plate 14, drives the pull rod 9 to move. The pull rod 9, in conjunction with the piston pin 21, drives the piston 19, in conjunction with the Gladley ring 20, to move along the inner wall of the base shell 1, effectively buffering the rotation of the guide shaft 4. An external screwdriver, in conjunction with the adjusting screw 11, drives the adjusting screw 24 to adjust the adjusting claw 25 and the adjusting stop 26. Fine-tuning is performed under the limit action, which makes it convenient to adjust the buffer force of the guide shaft 4 according to actual needs. The structure is simple and practical. Using an external screwdriver in conjunction with the force adjusting screw 11 to drive the force adjusting screw 24 for fine-tuning, the force adjusting screw 24 drives the piston 19 for fine-tuning and compresses the first spring 23 on the spring seat 22 and the second spring 28 on the force adjusting stop block 26. Thus, the first spring 23 and the second spring 28 provide buffer for the force adjusting screw 24, avoiding damage to the force adjusting screw 24 during the force adjustment process.

[0025] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A heavy-duty floor spring with adjustable force and 360-degree rotation, comprising a floor shell (1) and an iron box (2), wherein the floor shell (1) is disposed within the iron box (2), characterized in that, A bearing base (3) is fixedly installed on the bottom left side of the crust (1). A guide shaft (4) is rotatably connected to the bearing base (3). The guide shaft (4) is vertically installed through the iron box (2). The upper end of the iron box (2) located on one side of the guide shaft (4) is provided with a insert (5) and a dustproof panel (6). A large cover (7) is fixedly installed on the top surface of the crust (1) facing the guide shaft (4). A deep groove ball bearing (8) is fixedly installed at the lower end of the large cover (7). The guide shaft (4) is vertically rotatably installed through the deep groove ball bearing (8) and the large cover (7). A transmission mechanism is provided at one end of the guide shaft (4) located inside the crust (1). A pull rod (9) is provided on the transmission mechanism. A piston mechanism is movably sleeved on the pull rod (9). A tail cover (10) is provided on the right side wall of the crust (1). A force adjustment screw (11) is horizontally threaded through the tail cover (10). A force adjustment mechanism is provided between the piston mechanism and the force adjustment screw (11).

2. The heavy-duty floor spring with adjustable force and 360-degree rotation according to claim 1, characterized in that, The transmission mechanism includes a large roller (12) fixedly sleeved on the guide shaft (4) located in the earth's crust (1). The upper and lower ends of the large roller (12) are respectively provided with an upper pull plate (13) and a lower pull plate (14). The upper pull plate (13), the large roller (12) and the lower pull plate (14) are connected and fixed by a pull plate pin (15). The pull rod (9) is fixedly connected to the upper pull plate (13) and the lower pull plate (14) by a pull plate screw (16).

3. A heavy-duty floor spring with adjustable force and 360-degree rotation according to claim 2, characterized in that, The upper end of the deep groove ball bearing (8) is provided with a central shaft O-ring (17), and the large cover (7) is provided with a large cover O-ring (18) between the large cover (7) and the earth's crust (1).

4. A heavy-duty floor spring with adjustable force and 360-degree rotation according to claim 3, characterized in that, The piston mechanism includes a piston (19) disposed on the end of the pull rod (9) away from the large roller (12). A glyph (20) is provided on the annular sidewall of the piston (19). The piston (19) and the pull rod (9) are connected and fixed by a piston pin (21). A spring seat (22) is provided on the end of the piston (19) away from the pull rod (9). A first spring (23) is fixedly connected to the spring seat (22). The first spring (23) is associated with the force adjustment mechanism.

5. A heavy-duty floor spring with adjustable force and 360-degree rotation according to claim 4, characterized in that, The force adjustment mechanism includes a force adjustment screw (24) fixedly connected to one end of the force adjustment screw (11) located inside the earth's crust (1). A first spring (23) is sleeved on the force adjustment screw (24). A force adjustment claw (25) is fixedly connected to the inner wall of the earth's crust (1) on one side of the force adjustment screw (11). A force adjustment stop (26) is provided between the force adjustment claw (25) and the force adjustment screw (11). A flat washer (27) is provided at the left end of the force adjustment stop (26). A second spring (28) is fixedly connected to the left end of the force adjustment stop (26). The second spring (28) is sleeved on the force adjustment screw (11). A tail cover O-ring (29) is provided between the force adjustment screw (11) and the tail cover (10).

6. A heavy-duty floor spring with adjustable force and 360-degree rotation according to claim 5, characterized in that, The materials of the central shaft O-ring (17), the large cover O-ring (18), and the tail cover O-ring (29) are all nitrile rubber.

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