Floor spring structure capable of being installed in two directions

Abstract

The utility model relates to the technical field of floor springs, and discloses a floor spring structure capable of being installed in two directions, which comprises a main machine cylinder body, a spring bin and a tail part, a spring is arranged in the spring bin, a positioning rod is arranged in the main machine cylinder body in a manner of extending towards the spring bin, the positioning rod extends into the spring, and the tail part is fixedly connected with the main machine cylinder body. The right end of the spring abuts against the end of the positioning rod, and an adjustable piston plate is arranged at the left end of the spring. By arranging the rotary knob capable of rotating and arranging the worm, the gear ring, the gear ring and the threaded rod which are meshed with each other, when the rotary knob is rotated, the worm drives the gear ring to rotate, the gear ring controls the threaded rod to move and pushes the piston plate to move, and therefore a spring is compressed to a certain degree; the spring is compressed by rotating the knob, and when the door is opened and closed, the spring has stronger elasticity, so that the service life of the floor spring is prolonged, and the floor spring does not need to be replaced by disassembling and assembling the door.

Description

TECHNICAL FIELD

[0001] The utility model relates to ground spring technical field, concretely is a two -way installation's ground spring structure. BACKGROUND

[0002] Ground spring is a kind of hydraulic door closer, only the device that its compression spring is worm wheel instead of gear, rack.Because worm wheel can rotate in both directions, so ground spring can be used for two-way opening door, and ordinary door closer can only be used for one-way opening door.The technical key of ground spring is the load-bearing seat of main shaft lower part, it determines the load-bearing grade of ground spring.Because ground spring is internally provided with the spring that is compressed, after long time and high frequency use, spring will be extruded and released for many times, will produce mechanical damage, spring force will be influenced, make the service life of ground spring limited, and generally ground spring is replaced as a whole, however, it is more complicated to replace ground spring, need first dismount door, take out ground spring from shell and replace new ground spring, then re-install door, process is more complicated.Therefore, the technical personnel in the art provides a two -way installation's ground spring structure to solve the problems in the above background art. SUMMARY

[0003] The utility model is to provide a two -way installation's ground spring structure to solve the problems in the above background art.

[0004] To achieve the above object, the utility model provides the following technical scheme:

[0005] A two -way installation's ground spring structure, including main machine cylinder body, spring bin and tail part, the left side of main machine cylinder body is equipped with spring bin, the left side of spring bin is installed with tail part, and the inside of main machine cylinder body, spring bin and tail part is mutually through, the upper surface of main machine cylinder body is protrudingly provided with rotatable installation convex shaft, the inside of spring bin is provided with spring, the inside of main machine cylinder body is provided with positioning rod towards spring bin, positioning rod extends to the inside of spring, and the right end of spring is abutted on the end of positioning rod, and the left end of spring is provided with adjustable piston plate.

[0006] As a further scheme of the utility model: the inside of tail part is slidably provided with threaded rod, the right end of threaded rod is fixedly connected to the left surface of piston plate, the inside of tail part is provided with gear ring, the gear ring is sleeved on the surface of threaded rod, the inner wall of gear ring is provided with screw thread that is mutually engaged with the surface screw thread of threaded rod, the inside of tail part is also rotatably provided with worm, the outer surface of gear ring is provided with worm gear teeth, and worm and worm gear teeth of the outer surface of gear ring are mutually engaged.

[0007] As a further improvement of this utility model: a knob is fixedly connected to the upper end of the worm gear, and the upper end of the knob penetrates the upper surface of the tail component.

[0008] As a further improvement of this utility model: the horizontal height of the upper surface of the knob is not higher than the horizontal height of the upper surface of the tail component.

[0009] As a further improvement of this utility model, the upper surface of the knob is provided with a straight opening or a cross-shaped opening.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] By incorporating a rotatable knob and meshing worm gear and toothed ring, as well as a threaded rod, rotating the knob causes the worm gear to rotate, which in turn controls the movement of the threaded rod, pushing the piston plate to move and thus compressing the spring to a certain extent. When the spring suffers mechanical wear and its elasticity weakens, rotating the knob compresses the spring, resulting in stronger spring force when opening and closing the door. This extends the lifespan of the floor spring, eliminating the need to disassemble the door to replace it, saving the door assembly and disassembly process, and making operation more convenient. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of a bidirectional floor spring structure.

[0013] Figure 2 for Figure 1 Schematic diagram of the structure in the AA direction;

[0014] Figure 3 for Figure 1 A schematic diagram of the structure in the BB direction.

[0015] In the diagram: 1. Main cylinder block; 2. Spring housing; 3. Tail assembly; 4. Knob; 5. Mounting cam; 6. Positioning rod; 7. Spring; 8. Piston plate; 9. Gear ring; 10. Threaded rod; 11. Worm gear. Detailed Implementation

[0016] Please see Figures 1 to 3In this embodiment of the utility model, a bidirectionally installable floor spring structure includes a main cylinder 1, a spring chamber 2, and a tail component 3. The spring chamber 2 is located on the left side of the main cylinder 1, and the tail component 3 is installed on the left side of the spring chamber 2. The main cylinder 1, the spring chamber 2, and the tail component 3 are interconnected internally. A rotatable mounting convex shaft 5 protrudes from the upper surface of the main cylinder 1. A spring 7 is installed inside the spring chamber 2. A positioning rod 6 extends from the inside of the main cylinder 1 toward the spring chamber 2. The positioning rod 6 extends into the inside of the spring 7, and the right end of the spring 7 abuts against the end of the positioning rod 6. An adjustable piston plate 8 is provided at the left end of the spring 7.

[0017] Preferably, a threaded rod 10 is slidably disposed inside the tail component 3, the right end of the threaded rod 10 is fixed to the left surface of the piston plate 8, a toothed ring 9 is disposed inside the tail component 3, the toothed ring 9 is sleeved on the surface of the threaded rod 10, the inner wall of the toothed ring 9 is provided with threads that mesh with the threads on the surface of the threaded rod 10, and a worm 11 is also rotatably disposed inside the tail component 3, the outer surface of the toothed ring 9 is provided with worm gear teeth, and the worm 11 and the worm gear teeth on the outer surface of the toothed ring 9 mesh with each other.

[0018] Preferably, a knob 4 is fixed to the upper end of the worm gear 11, and the upper end of the knob 4 penetrates the upper surface of the tail component 3.

[0019] Preferably, the horizontal height of the upper surface of the knob 4 is not higher than the horizontal height of the upper surface of the tail component 3.

[0020] Preferably, the upper surface of the knob 4 is provided with a straight opening or a cross-shaped opening.

[0021] The working principle of this utility model is as follows: When using this floor spring, it is installed inside the outer casing and connected to the bottom of the door via the mounting shaft 5. After prolonged and frequent opening and closing of the door, the spring 7 will experience some mechanical wear and its elasticity will be affected. At this time, the cover of the outer casing can be opened, and a flathead screwdriver or a Phillips screwdriver can be used to align with the opening on the upper surface of the knob 4 and rotate the knob 4. Since the worm gear 11 and the toothed ring 9 are engaged, when the knob 4 is rotated, the worm gear 11 rotates, and the toothed ring 9 rotates accordingly, thereby controlling the threaded rod 10 to move towards one side of the main cylinder 1, which in turn pushes the piston plate 8 to move, so that the spring 7 can be subjected to some pressure, causing the spring 7 to compress. When opening and closing the door, the spring 7 will have stronger elasticity, thereby extending the service life of the floor spring and eliminating the need to disassemble the door to replace the floor spring.

[0022] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A bidirectional floor spring structure, comprising a main cylinder (1), a spring housing (2), and a tail component (3), wherein the spring housing (2) is provided on the left side of the main cylinder (1), and the tail component (3) is installed on the left side of the spring housing (2), and the interiors of the main cylinder (1), the spring housing (2), and the tail component (3) are interconnected, and a rotatable mounting convex shaft (5) is provided protruding from the upper surface of the main cylinder (1), characterized in that: A spring (7) is provided inside the spring housing (2). A positioning rod (6) is provided inside the main cylinder (1) extending toward the spring housing (2). The positioning rod (6) extends into the spring (7), and the right end of the spring (7) abuts against the end of the positioning rod (6). An adjustable piston plate (8) is provided at the left end of the spring (7).

2. The bidirectionally installable floor spring structure according to claim 1, characterized in that: The tail component (3) has a threaded rod (10) slidably disposed inside. The right end of the threaded rod (10) is fixed to the left surface of the piston plate (8). The tail component (3) has a toothed ring (9) disposed inside. The toothed ring (9) is sleeved on the surface of the threaded rod (10). The inner wall of the toothed ring (9) is provided with threads that mesh with the threads on the surface of the threaded rod (10). The tail component (3) also has a worm (11) rotatably disposed inside. The outer surface of the toothed ring (9) is provided with worm gear teeth. The worm (11) and the worm gear teeth on the outer surface of the toothed ring (9) mesh with each other.

3. The bidirectionally installable floor spring structure according to claim 2, characterized in that: A knob (4) is fixed to the upper end of the worm (11), and the upper end of the knob (4) penetrates the upper surface of the tail component (3).

4. A bidirectionally installable floor spring structure according to claim 3, characterized in that: The horizontal height of the upper surface of the knob (4) is not higher than the horizontal height of the upper surface of the tail component (3).

5. A bidirectionally installable floor spring structure according to claim 4, characterized in that: The upper surface of the knob (4) is provided with a straight or cross-shaped opening.

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