CN110821328B

CN110821328B - Floor spring with high door opening and closing stability

Info

Publication number: CN110821328B
Application number: CN201911035053.6A
Authority: CN
Inventors: 马桂明
Original assignee: Foshan Shunde Xiangli Hardware Spring Co ltd
Current assignee: Foshan Shunde Xiangli Hardware Spring Co.,Ltd.
Priority date: 2019-10-29
Filing date: 2019-10-29
Publication date: 2021-01-19
Anticipated expiration: 2039-10-29
Also published as: CN110821328A

Abstract

The invention relates to the technical field of door closers, and discloses a floor spring with high door opening and closing stability, which comprises a plunger and a shell, wherein an installation plate is fixedly installed on one side of the plunger, a movable magnetic block is arranged on the front surface of the installation plate, a static magnetic block is arranged on one side of the plunger on the inner wall of the shell, and one side of the static magnetic block is opposite to one side of the movable magnetic block in the same magnetic polarity. According to the invention, the movable magnetic block and the static magnetic block are arranged on one side of the plunger, and the magnetic repulsion force provided by the movable magnetic block and the static magnetic block plays a main elastic action by the reset spring in the opening range before the movable magnetic block and the static magnetic block are butted, and after the opening is exceeded, the movable magnetic block and the static magnetic block assist the elastic force, so that on one hand, the requirement on the rigidity of the reset spring can be reduced, the small thrust required for a small-opening door is realized, the large thrust required for a large-opening door is large, the large-opening door can be prevented from impacting an object behind the door, on the other hand, when the door is automatically closed, larger elastic force can be provided, and the stability.

Description

Floor spring with high door opening and closing stability

Technical Field

The invention relates to the technical field of door closers, in particular to a floor spring with high door opening and closing stability.

Background

The floor spring is a hydraulic door closer, because the floor spring is installed on a ground shaft of the glass door and embedded into the ground surface, and is limited by the installation size of the floor spring, compared with the door closer on the upper part of a door frame, a device for pressing the floor spring is a turbine instead of a rack and pinion, and the door can be opened in two directions.

Similarly, the compression stroke is smaller and the arm of force is short when the door is closed due to the adoption of the turbine compression spring, so that the requirement on the rigidity of the spring is higher if the door is closed, and the rigidity is improved, larger thrust is needed in the first half of the door opening process, and the actual use is not facilitated.

Disclosure of Invention

Aiming at the defects of the existing floor spring in the use process in the background technology, the invention provides the floor spring with high door opening and closing stability, which has the advantages of labor saving in initial door opening, sufficient power for automatic door closing and stability in normal door opening, and solves the problems in the background technology.

The invention provides the following technical scheme: the utility model provides a floor spring that switch door stability is high, includes plunger and casing, one side fixed mounting of plunger has the mounting panel, the front of mounting panel is equipped with moves the magnetic path, the inner wall of casing and the one side that is located the plunger are equipped with the static magnetic path, one side of static magnetic path is relative with one side magnetic pole homopolar that moves the magnetic path and correspond.

Preferably, the movable magnet block and the static magnet block are arranged in a staggered manner, and the butt joint surface of the movable magnet block and the static magnet block is an inclined surface.

Preferably, the movable magnetic block is in sliding connection with the mounting plate, a distance spring is arranged at the top end of the movable magnetic block, the other end of the distance spring is fixedly connected to the top end of the mounting plate, and the end of the static magnetic block is located on the upper portion of the mounting plate.

Preferably, when the distance spring is in an initial state, the rotation angle of the magnetic pole surface of the movable magnetic block and the rotation angle of the static magnetic block are coplanar.

The invention has the following beneficial effects:

1. according to the invention, the movable magnetic block and the static magnetic block are arranged on one side of the plunger, and the magnetic repulsion force provided by the movable magnetic block and the static magnetic block has the advantages that when the door opening angle is smaller, the distance between the movable magnetic block and the static magnetic block is smaller, the repulsion force is larger, and the influence is obvious, so that in the opening range before the movable magnetic block is in butt joint with the static magnetic block, the main elastic force effect is exerted by the reset spring, and after the opening is exceeded, the auxiliary elastic force of the movable magnetic block and the static magnetic block is increased.

2. According to the invention, the movable magnetic block and the static magnetic block are arranged in a staggered manner, and the butt joint surfaces are inclined surfaces matched with each other, so that the movable magnetic block and the static magnetic block can be in butt joint with each other in a cross section when the door is opened by 90 degrees, therefore, the magnetic poles are coplanar, the magnetic influence tends to zero, the requirement of the spring elasticity on the clamping resistance of the ground shaft is reduced when the door is normally opened by 90 degrees, or under the same clamping resistance, the door has smaller resilience, and thus, the door has a more stable normally-opened state.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a side view of the sliding connection of the mounting plate and the moving magnet according to the present invention;

fig. 3 is a schematic view of the door of the present invention in a stage of small opening.

In the figure: 1. a connecting rod; 2. a return spring; 3. a plunger; 4. a damping hole; 5. a housing; 6. mounting a plate; 7. a movable magnet block; 8. a distance spring; 9. a static magnetic block.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, a floor spring with high stability in opening and closing a door includes a connecting rod 1 and a housing 5, a return spring 2 is sleeved outside the connecting rod 1, a plunger 3 is fixedly connected to an end of the connecting rod 1, a damping hole 4 is formed inside the plunger 3, the connecting rod 1 is rotated by a door shaft to drive a turbine to rotate so as to move directly, the return spring 2 is a spring for returning and closing the door, hydraulic oil is filled in the whole cavity, and when the plunger 3 slides, the hydraulic oil generates flow resistance through the damping hole 4. An installation plate 6 is fixedly installed on one side of the plunger 3, a movable magnet block 7 is arranged on the front face of the installation plate 6, a static magnet block 9 is arranged on one side, located on the plunger 3, of the inner wall of the shell 5, one side of the static magnet block 9 is opposite to one side, corresponding to the movable magnet block 7, in the same magnetic polarity, when the door is closed, the distance between the movable magnet block 7 and the static magnet block 9 is the largest, and when the door is opened by 90 degrees, the distance between the movable magnet block 7 and the static magnet block 9 is the smallest.

Therefore, in the stage of just opening the door, because of the distance between the movable magnet block 7 and the static magnet block 9 is far away, the influence of magnetic repulsion force is small, the door opening resistance is mainly provided by the damping hole 4 and the reset spring 2, the door opening resistance is small at the moment, when the large opening degree is continuously opened, the movable magnet block 7 is close to the static magnet block 9, the magnetic repulsion force is obvious, therefore, the repulsion force is added into the door opening resistance, and if no person pushes the door at the moment, the door can provide restoring force under the dual action of the repulsion force and the spring, and stable door closing power is provided. As described above, the movable magnet 7 and the static magnet 9 are added to reduce the rigidity requirement of the return spring 2, and at the same time, at the initial stage of opening the door, the moving magnet 7 and the static magnet 9 have less influence, so that the labor is saved for opening the door, and when the opening degree is large, the repulsive force of the movable magnet 7 and the static magnet 9 is added, so that the door opening resistance is large, and at the same time, a large power source is provided when the door is closed.

Wherein, in order to provide the stability when opening the door normally, the moving magnet 7 and static magnet 9 are arranged in a staggered way, and the butt-joint surface of the moving magnet 7 and static magnet 9 is set as an inclined plane, the magnetic pole is a corresponding inclined plane section, therefore, before the inclined planes of the moving magnet 7 and static magnet 9 are not butt-jointed, the magnetic repulsion still exists when the moving magnet 7 and static magnet 9 are close to each other, and when the inclined planes of the moving magnet 7 and static magnet 9 are butt-jointed, the magnetic pole is coplanar, the direction of the magnetic repulsion is vertical to the moving direction of the plunger 3, at this time, the door is opened at 90 degrees, therefore, under the condition that the clamping resistance at the ground axis of the door is inconvenient, the power of the door automatic closing is smaller, the stability of the door normally opening can be ensured, or the clamping resistance at the ground axis can be reduced, so that only a small pushing force needs to be provided at the initial stage of the door being opened from 90 degrees, in the existing ground spring, the reset spring 2 is completely compressed, the automatic door closing power that its produced is the biggest, needs great earth's axis department joint resistance to realize that the door is opened, closes the door again this moment, then needs bigger dynamics can overcome the joint resistance.

The movable magnet block 7 is slidably connected with the mounting plate 6 in a manner shown in fig. 2, a distance spring 8 is arranged at the top end of the movable magnet block 7, and the other end of the distance spring 8 is fixedly connected to the top end of the mounting plate 6, so that before the movable magnet block 7 is contacted with the inclined surface of the static magnet block 9, the abutting area of the inclined magnetic poles of the movable magnet block 7 and the static magnet block 9 is always kept at a full inclined area due to the elastic force action of the distance spring 8, and the loss amount of magnetic repulsion force due to dislocation arrangement can be reduced.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a floor spring that switch door stability is high, includes plunger (3) and casing (5), its characterized in that: a mounting plate (6) is fixedly mounted on one side of the plunger (3), a moving magnetic block (7) is arranged on the front face of the mounting plate (6), a static magnetic block (9) is arranged on the inner wall of the shell (5) and on one side of the plunger (3), and magnetic poles on one side of the static magnetic block (9) and the corresponding side of the moving magnetic block (7) are opposite in the same polarity;

the movable magnetic block (7) and the static magnetic block (9) are arranged in a staggered mode, and the butt joint surface of the movable magnetic block (7) and the static magnetic block (9) is an inclined surface;

the movable magnetic block (7) is connected with the mounting plate (6) in a sliding mode, a distance spring (8) is arranged at the top end of the movable magnetic block (7), the other end of the distance spring (8) is fixedly connected to the top end of the mounting plate (6), and the end portion of the static magnetic block (9) is located on the upper portion of the mounting plate (6);

and when the distance spring (8) is in an initial state, the rotating angle of the magnetic pole surface of the movable magnetic block (7) and the rotating angle of the static magnetic block (9) are coplanar.