CN219281535U

CN219281535U - Miniature floor spring

Info

Publication number: CN219281535U
Application number: CN202320855549.3U
Authority: CN
Inventors: 杨国元
Original assignee: Anhui Haida Door Control Equipment Co ltd
Current assignee: Anhui Haida Door Control Equipment Co ltd
Priority date: 2023-04-12
Filing date: 2023-04-12
Publication date: 2023-06-30
Anticipated expiration: 2033-04-12

Abstract

The utility model relates to the technical field of floor springs and discloses a miniature floor spring which comprises a shell, wherein an upper cover is arranged on the upper surface of the shell, a rotating cavity is formed in the shell, a shaft lever is vertically arranged in the rotating cavity, a shaft lever inner groove is formed in the bottom side of the shaft lever, a torsion spring is vertically arranged in the shaft lever inner groove, a sleeve rod is fixedly connected to the side wall of the shaft lever, a roller frame is arranged on the front side of the sleeve rod, rollers are arranged on the front side of the roller frame, and fixing mechanisms are arranged on the four outer side walls of the shell. Through setting up first wheel groove and second wheel groove for the gyro wheel carries out reciprocating movement at first wheel groove, rotates the intracavity wall and second wheel groove, can accomplish the switching of door leaf, and through the effect of torsional spring, can provide reverse power for the door leaf, the door leaf of being convenient for resets, and this ground spring volume is smaller than general ground spring volume, places the casing in the slotted hole of seting up ground during the installation, through adjusting screw fixation, easy operation.

Description

Miniature floor spring

Technical Field

The utility model relates to the technical field of floor springs, in particular to a miniature floor spring.

Background

The floor spring is a door closer, the floor spring with the structure existing in the market at present is buried under the floor by about 50cm, the volume is large, the floor spring is complex in structure, the floor spring is generally about 25cm long and about 10cm wide, a pit is required to be dug on the ground for installation, floor springs with different types are selected for installation according to different door weights, and the volume of the floor spring is gradually increased along with the increase of the door weights. However, for lighter doors, the existing floor spring has a larger minimum size, and a larger groove hole for placing the floor spring is required to be punched on the ground during installation, so that the workload during installation is increased, and the maintenance of the floor spring is also not facilitated.

Accordingly, one skilled in the art would provide a miniature floor spring to address the problems set forth in the background above.

Disclosure of Invention

The present utility model is directed to a miniature floor spring to solve the above-mentioned problems.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the utility model provides a miniature floor spring, includes the casing, the upper surface of casing is the square, the upper surface mounting of casing has the upper cover, the surface of upper cover with the screw hole has been seted up jointly to the upside of casing, the rotation chamber has been seted up to the inside of casing, the inside vertical axostylus axostyle of installing in rotation chamber, the top of axostylus axostyle runs through the upper cover and extends to the upside of upper cover, the top rigid coupling of axostylus axostyle has the floor spring shaft portion, the axostylus axostyle inside groove has been seted up to the bottom side of axostylus axostyle inside groove, the inside vertical torsional spring that installs of axostylus axostyle inside groove, just the upper end of torsional spring in the roof of axostylus axostyle inside groove, the lower extreme rigid coupling of torsional spring in the bottom surface of rotation chamber, the lateral wall rigid coupling of axostyle has the loop bar, the gyro wheel frame is installed to the front side of gyro wheel frame, the gyro wheel is installed to the four sides lateral wall of casing all is equipped with fixed establishment.

As still further aspects of the utility model: the inside of the loop bar is provided with a straight spring, and two ends of the straight spring respectively lean against the surface of the roller frame and the inner surface of the loop bar.

As still further aspects of the utility model: the side wall of the rotating cavity is provided with a first wheel groove and a second wheel groove.

As still further aspects of the utility model: the axle center of the first wheel groove and the axle center of the shaft lever are in vertical relation with the axle center of the second wheel groove and the axle center of the shaft lever.

As still further aspects of the utility model: balls are mounted on the lower surface of the shaft rod at equal intervals, all the balls are annularly arranged along the central axis of the shaft rod, and the lower end faces of the balls are abutted against and connected with the bottom face of the rotating cavity.

As still further aspects of the utility model: the fixed establishment includes the extension board, the extension board rigid coupling in the side surface upper end of casing, just the upper surface of extension board with the lower surface of upper cover supports each other and leans on, the equal rigid coupling of side surface all around of casing has the extension piece, the adjusting screw is installed to the inside embedding from top to bottom of extension board, the lower extreme rigid coupling of adjusting screw has the bevel gear just the bevel gear extends to the inside of extension piece, the internally mounted of extension piece has the screw rod, the outside end of screw rod extends to the outside of extension piece just the outside end rigid coupling of screw rod has the butt board, the surface screw thread of screw rod has cup jointed the gear, the gear is located the inside of extension piece just with bevel gear intermeshing.

Compared with the prior art, the utility model has the beneficial effects that:

through setting up first wheel groove and second wheel groove for the gyro wheel carries out reciprocating movement at first wheel groove, rotate intracavity wall and second wheel groove, can accomplish the switching of door leaf, and through the effect of torsional spring, can provide reverse power for the door leaf, the door leaf of being convenient for resets, and first wheel groove and second wheel groove set up in rotating the intracavity inside wall, can carry out spacing with the gyro wheel, avoid the torsional force of torsional spring too big and lead to the door leaf to reset by oneself, this floor spring volume is smaller than general floor spring volume, only need place the casing in the slotted hole of seting up on ground during the installation, make the butt plate support to the slotted hole inner wall through rotating the adjusting screw, can accomplish the fixed of this floor spring, easy operation, and when maintaining this floor spring, also can dismantle the shell of this floor spring through rotating the adjusting screw, the floor spring of being convenient for maintains.

Drawings

FIG. 1 is a schematic view of a miniature floor spring;

FIG. 2 is a schematic view of the structure in the direction A-A in FIG. 1;

fig. 3 is an enlarged schematic view of the screw and the abutment plate in the miniature floor spring.

In the figure: 1. a housing; 2. an upper cover; 3. screw holes; 4. a ground spring shaft portion; 5. a shaft lever; 6. a ball; 7. a torsion spring; 8. an inner groove of the shaft lever; 9. a rotating chamber; 10. a first wheel groove; 11. a second wheel groove; 12. a loop bar; 13. a roller frame; 14. a roller; 15. a straight spring; 16. an extension plate; 17. an adjusting screw; 18. an extension block; 19. bevel gears; 20. a gear; 21. a screw; 22. against the plate.

Detailed Description

Referring to fig. 1-3, in the embodiment of the utility model, a miniature floor spring comprises a housing 1, the upper surface of the housing 1 is square, an upper cover 2 is installed on the upper surface of the housing 1, screw holes 3 are commonly formed on the surface of the upper cover 2 and the upper side of the housing 1, a rotating cavity 9 is formed in the housing 1, a shaft lever 5 is vertically installed in the rotating cavity 9, the top end of the shaft lever 5 penetrates through the upper cover 2 and extends to the upper side of the upper cover 2, a floor spring shaft portion 4 is fixedly connected to the top end of the shaft lever 5, a shaft lever inner groove 8 is formed in the bottom side of the shaft lever 5, a torsion spring 7 is vertically installed in the interior of the shaft lever inner groove 8, the upper end of the torsion spring 7 is fixedly connected to the top wall of the shaft lever inner groove 8, the lower end of the torsion spring 7 is fixedly connected to the bottom surface of the rotating cavity 9, a sleeve rod 12 is fixedly connected to the side wall of the shaft lever 5, a roller frame 13 is installed on the front side of the sleeve rod 12, a roller 14 is installed on the front side of the roller frame 13, and four-side outer side walls of the housing 1 are all provided with fixing mechanisms.

Preferably, the straight spring 15 is installed inside the loop bar 12, and two ends of the straight spring 15 respectively lean against the surface of the roller frame 13 and the inner surface of the loop bar 12, and are used for pushing the roller frame 13, so that the first wheel groove 10 and the inner side wall of the rotating cavity 9 are always kept in a contact state.

Preferably, the side wall of the rotating cavity 9 is provided with a first wheel groove 10 and a second wheel groove 11, which are used for clamping the roller 14 into the first wheel groove 10 or the second wheel groove 11, so as to complete the opening and closing fixation of the door leaf.

Preferably, the plane where the axle center of the first wheel groove 10 and the axle center of the shaft lever 5 are in a perpendicular relation to the plane where the axle center of the second wheel groove 11 and the axle center of the shaft lever 5 are in, when the roller 14 is clamped inside the first wheel groove 10 and rolls to the second wheel groove 11 along the inner side wall of the rotation cavity 9, the door leaf mounted on the top of the floor spring shaft portion 4 rotates 90 degrees to finish opening, and conversely, the door leaf rotates 90 degrees to close.

Preferably, the balls 6 are installed on the lower surface of the shaft rod 5 at equal intervals, all the balls 6 are annularly arranged on the central axis of the shaft rod 5, the lower end faces of the balls 6 are propped against the bottom face connected to the rotating cavity 9, friction force is reduced, the shaft rod 5 rotates more smoothly, and the jamming phenomenon is avoided.

Preferably, the fixing mechanism comprises an extension plate 16, the extension plate 16 is fixedly connected to the upper end of the side surface of the shell 1, the upper surface of the extension plate 16 and the lower surface of the upper cover 2 are mutually abutted, extension blocks 18 are fixedly connected to the peripheral side surfaces of the shell 1, an adjusting screw 17 is embedded and installed in the extension plate 16 up and down, a bevel gear 19 is fixedly connected to the lower end of the adjusting screw 17, the bevel gear 19 extends to the inside of the extension block 18, a screw 21 is installed in the extension block 18, the outer side end of the screw 21 extends to the outside of the extension block 18, an abutting plate 22 is fixedly connected to the outer side end of the screw 21, a gear 20 is sleeved on the surface thread of the screw 21, the gear 20 is located in the inside of the extension block 18 and meshed with the bevel gear 19, the adjusting screw 17 is screwed by a screwdriver, the bevel gear 19 follows the adjusting screw 17 to rotate, so that the meshed gear 20 is sleeved on the surface of the screw 21, the screw 21 rotates, the abutting plate 22 is gradually abutted to the inner wall of a slot hole formed in the ground, and the fixing of the shell 1 is completed.

The working principle of the utility model is as follows: when the miniature floor spring is installed, a small slot hole is formed on the ground of a door frame for placing the shell 1, after the shell 1 is placed in the slot hole, an adjusting screw 17 is screwed by a screwdriver, a bevel gear 19 rotates along with the adjusting screw 17, so that a gear 20 in meshed connection rotates, the gear 20 is sleeved on the surface of a screw rod 21, the screw rod 21 rotates, an abutting plate 22 gradually abuts against the inner wall of the slot hole formed in the ground, the fixing of the shell 1 is completed, then an upper cover 2 is placed on the upper surface of the shell 1, the installation of the upper cover 2 is completed by screwing into a screw hole 3, by fixing a door leaf to a floor spring shaft part 4, when the door leaf needs to be rotated, by pushing the door leaf, at this time, the roller 14 moves out of the first wheel groove 10 and rolls along the inner side wall of the rotating cavity 9 to the inside of the second wheel groove 11, in the process, the straight spring 15 is gradually pressed from a releasing state and returns to the releasing state, the bottom end of the shaft lever 5 rolls through the ball 6, friction force is reduced, in the process, the torsion spring 7 is subjected to torsion force to force the shaft lever 5 to rotate, the roller 14 is clamped in the inside of the second wheel groove 11, the shaft lever 5 can be prevented from rotating automatically, the door leaf rotates by 90 degrees to finish opening, otherwise, the door leaf is pushed to rotate reversely by 90 degrees, and under the action of torsion force of the torsion spring 7, the door leaf can be controlled to rotate reversely until the roller 14 is reset to the inside of the first wheel groove 10 again, and closing of the door leaf is completed again.

The foregoing description is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical solution of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims

1. A miniature floor spring comprising a housing (1), characterized in that: the upper surface of casing (1) is the square, upper surface mounting of casing (1) has upper cover (2), the surface of upper cover (2) with screw hole (3) have been seted up jointly to the upside of casing (1), rotation chamber (9) have been seted up to the inside of casing (1), rotation chamber (9) the inside is vertical installs axostylus axostyle (5), the top of axostylus axostyle (5) runs through upper cover (2) and extends to the upside of upper cover (2), the top rigid coupling of axostylus axostyle (5) has ground spring shaft portion (4), axostylus axostyle inside groove (8) have been seted up to the bottom side of axostylus axostyle (5), torsion spring (7) are vertically installed to the inside of axostylus axostyle inside groove (8), just the upper end rigid coupling of torsion spring (7) in the bottom surface of rotation chamber (9), the lateral wall rigid coupling of axostylus axostyle (5) has loop bar (12), the front side of loop bar (12) is installed in the front side (13), roller carrier (13) are all around installing mechanism (1), lateral wall (13) are all fixed.

2. A miniature floor spring according to claim 1, wherein: the inside of the loop bar (12) is provided with a straight spring (15), and two ends of the straight spring (15) respectively lean against the surface of the roller frame (13) and the inner surface of the loop bar (12).

3. A miniature floor spring according to claim 1, wherein: the side wall of the rotating cavity (9) is provided with a first wheel groove (10) and a second wheel groove (11).

4. A miniature floor spring according to claim 3, wherein: the plane where the axle center of the first wheel groove (10) and the axle center of the shaft lever (5) are located is perpendicular to the plane where the axle center of the second wheel groove (11) and the axle center of the shaft lever (5) are located.

5. A miniature floor spring according to claim 1, wherein: the lower surface equidistance of axostylus axostyle (5) is installed ball (6), all ball (6) are the annular arrangement with the axis of axostylus axostyle (5), the lower terminal surface of ball (6) support and lean on connect in the bottom surface in rotating chamber (9).

6. A miniature floor spring according to claim 1, wherein: the fixing mechanism comprises an extension plate (16), the extension plate (16) is fixedly connected to the upper end of the side surface of the shell (1), the upper surface of the extension plate (16) and the lower surface of the upper cover (2) are mutually abutted, extension blocks (18) are fixedly connected to the peripheral side surface of the shell (1), adjusting screws (17) are embedded into the inside of the extension plate (16) up and down, bevel gears (19) are fixedly connected to the lower ends of the adjusting screws (17), the bevel gears (19) extend to the inside of the extension blocks (18), screw rods (21) are mounted in the inside of the extension blocks (18), the outer ends of the screw rods (21) extend to the outside of the extension blocks (18), the outer ends of the screw rods (21) are fixedly connected with abutting plates (22), gears (20) are sleeved on the surface threads of the screw rods (21), and the gears (20) are located in the inside of the extension blocks (18) and meshed with the bevel gears (19).