Floor spring structure with adjustable buffering function
By designing a floor spring structure with adjustable buffer function, and utilizing a combination of buffer rack and transmission gear, the problem of door jamming caused by floor spring oil leakage was solved, achieving smooth door closure and protection of parts.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-23
- Publication Date
- 2026-03-27
AI Technical Summary
Existing floor springs may leak oil due to seal failure during use, affecting the normal opening and closing of the door and potentially causing jamming or uneven operation.
Design a floor spring structure with adjustable buffer function. Through the cooperation of the housing and buffer components, and by using the combination of buffer rack, transmission gear and spring, buffer energy absorption is achieved, reducing the risk of component damage.
It effectively solves the problem of oil leakage from the floor spring, ensures smooth door closure, extends the service life of the floor spring, and avoids damage to parts caused by excessive speed.
Smart Images
Figure CN224048953U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of ground spring, especially relates to a ground spring structure with adjustable buffering function. BACKGROUND
[0002] The ground spring is a hydraulic door closer widely used in buildings, and its core feature is to use a worm gear device to compress a spring, thereby realizing the automatic closing function of a door. The technical key of the ground spring lies in a load-bearing seat at the lower part of a main shaft, which determines the load-bearing grade of the ground spring. In addition, the quality of the ground spring has a high dependency on the structural design and processing precision, and the service life of low-grade ground springs is greatly different from that of high-grade ground springs.
[0003] At present, the ground spring in the prior art is usually filled with hydraulic oil to generate a damping effect, helping to stably close the door body and reduce noise. However, with the passage of time, the sealing element inside the ground spring gradually loses elasticity and causes oil leakage. When the ground spring leaks oil, the lubricity of the moving parts of the ground spring is reduced, thereby affecting the normal opening and closing operation of the door, and the door may be stuck or not smooth when opening or closing.
[0004] Therefore, the utility model provides a ground spring structure with adjustable buffering function to solve the above problems. CONTENT OF THE UTILITY MODEL
[0005] The utility model discloses a ground spring structure with adjustable buffering function, which solves the problem that the ground spring in the prior art leaks oil due to various reasons during use, thereby causing the ground spring to be unable to be normally used.
[0006] To solve the above technical problems, the utility model is realized by the following technical scheme.
[0007] The utility model discloses a ground spring structure with adjustable buffering function, which includes a box body and a buffering assembly, the buffering assembly is arranged in the box body, the box body is covered with a box cover, the buffering assembly includes a buffering rack, the rear end side wall of the buffering rack is fixedly connected with a rear buffering plate, the side wall of the rear buffering plate is fixedly installed with a second spring in a symmetrical mode, the other end of the two second springs is fixedly connected with the inner wall of the box body, the tooth surface of the buffering rack is meshedly connected with a transmission gear, the upper end of the transmission gear is provided with a shaft disc, the upper end of the shaft disc is provided with an upper shaft block, the upper shaft block is sleeved with a mounting door plate, the front end side wall of the buffering rack is fixedly connected with a first spring, and the other end of the first spring is fixedly connected with the inner wall of the box body.
[0008] The utility model is further provided with a rotating shaft fixedly connected with the center of the transmission gear, and the lower end of the rotating shaft is rotatably connected with the bottom end surface of the inner wall of the box body.
[0009] The utility model further sets up, the inner wall bottom end surface of box body is equipped with limit slot, the lower end surface of buffer rack is fixedly installed with two limit sliding blocks, the side wall of two limit sliding blocks is connected with the inner wall of limit slot.
[0010] The utility model further sets up, the upper end surface of box cover is equipped with a plurality of thread holes, the upper end surface of box body is equipped with a plurality of thread grooves matched with thread hole, and a plurality of installation bolts are arranged between the thread hole and the thread groove.
[0011] The utility model further sets up, the upper end surface of pivot is fixedly connected with the bottom end surface of axle disc, the upper end surface of box cover is equipped with sliding hole, and the side wall of axle disc is connected with the inner wall of sliding hole.
[0012] The utility model further sets up, the lower end surface of buffer rack is connected with the inner wall bottom end surface of box body.
[0013] The utility model further sets up, the lower end surface of rear buffer board is connected with the inner wall bottom end surface of box body.
[0014] The utility model further sets up, the plane size of box cover is equal to the opening plane size of the upper end surface of box body.
[0015] The utility model has the following beneficial effects.
[0016] 1、 the utility model discloses a box body and buffer assembly are set up, and when installing the door panel is pushed open, buffer rack will compress first spring forward, and after installing the door panel no longer is artificially pushed, first spring will reset and push back buffer rack, at this moment, buffer assembly can buffer the energy absorption of the pushed back buffer rack, and the speed of the pushed back buffer rack is reduced to avoid the damage of parts caused by the too fast pushback speed.
[0017] 2、 the utility model discloses that limit sliding block and limit slot are set up, when buffer rack is horizontally displaced inside box body, two limit sliding blocks set up in the lower end of buffer rack are in limit slot to ensure that buffer rack does not deviate from the predetermined trajectory during movement, guaranteeing the accurate movement of buffer rack. BRIEF DESCRIPTION OF DRAWINGS
[0018] In order to make the technical scheme of the embodiments of the utility model clearer, the following will briefly introduce the drawings needed to be used in the embodiment description.
[0019] Figure 1 It is a kind of stereogram of the ground spring structure with adjustable buffering function.
[0020] Figure 2It is an internal structure schematic view of a box body in a land spring structure with adjustable buffering function.
[0021] Figure 3 It is a split structure schematic view of internal parts of a box body in a land spring structure with adjustable buffering function.
[0022] Figure 4 It is Figure 3 It is an enlarged structure schematic view at A in the figure.
[0023] Figure 5 It is a top view structure schematic view of a land spring structure with adjustable buffering function.
[0024] In the drawings: 1, box body; 2, box cover; 3, shaft disc; 4, rotating shaft; 5, transmission gear; 6, buffering rack; 7, first spring; 8, rear buffering plate; 9, second spring; 10, limiting groove; 11, limiting sliding block; 12, threaded hole; 13, threaded groove; 14, mounting bolt; 15, upper shaft block. DETAILED DESCRIPTION
[0025] The technical scheme in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application, and the described embodiments are only part of the embodiments of the present application, not all the embodiments.
[0026] Embodiment one
[0027] Please refer to Figures 1-5 The utility model discloses a land spring structure with adjustable buffering function, which comprises a box body 1 and a buffering assembly, the buffering assembly is arranged in the box body 1, the box body 1 is covered with a box cover 2, the buffering assembly comprises a buffering rack 6, the rear end side wall of the buffering rack 6 is fixedly connected with a rear buffering plate 8, the side wall of the rear buffering plate 8 is symmetrically fixedly installed with a second spring 9, the other end of the two second springs 9 is fixedly connected with the inner wall of the box body 1, the tooth surface of the buffering rack 6 is meshingly connected with a transmission gear 5, the upper end of the transmission gear 5 is provided with a shaft disc 3, the upper end of the shaft disc 3 is provided with an upper shaft block 15, the upper shaft block 15 is sleeved with a mounting door plate, the front end side wall of the buffering rack 6 is fixedly connected with a first spring 7, and the other end of the first spring 7 is fixedly connected with the inner wall of the box body 1.
[0028] Specifically: after the installation door plate is sleeved on the upper shaft block 15, when the installation door plate is pushed open, the shaft disc 3 is driven to rotate through the connection with the upper shaft block 15, at this time, the transmission gear 5 arranged below the shaft disc 3 is synchronously rotated and drives the buffer rack 6 to move forward through meshing, the buffer rack 6 is pushed forward at the same time, the first spring 7 in front is compressed to store energy, after the installation door plate is no longer subjected to artificial pushing force, the first spring 7 resets and pushes back the buffer rack 6, the rear buffer plate 8 arranged on the other side of the buffer rack 6 and the two second springs 9 buffer and absorb the energy of the buffer rack 6 pushed back, reduce the speed of the buffer rack 6 when being pushed back to avoid the damage of parts caused by the too fast pushing back speed of the buffer rack 6.
[0029] Embodiment two
[0030] Please refer to Figures 1-5 On the basis of the embodiment one, the transmission gear 5 is fixedly connected with the rotating shaft 4 at the center, the lower end of the rotating shaft 4 is rotatably connected with the inner wall bottom end surface of the box body 1; the inner wall bottom end surface of the box body 1 is provided with a limiting groove 10, the lower end surface of the buffer rack 6 is fixedly installed with two limiting sliding blocks 11, the side walls of the two limiting sliding blocks 11 are slidably connected with the inner wall of the limiting groove 10; the upper end surface of the box cover 2 is provided with a plurality of threaded holes 12, the upper end surface of the box body 1 is provided with a plurality of threaded grooves 13 matched with the threaded holes 12, a plurality of installation bolts 14 are arranged between the threaded holes 12 and the threaded grooves 13; the upper end surface of the rotating shaft 4 is fixedly connected with the bottom end surface of the shaft disc 3, the upper end surface of the box cover 2 is provided with a sliding hole, the side wall of the shaft disc 3 is slidably connected with the inner wall of the sliding hole; the lower end surface of the buffer rack 6 is slidably connected with the inner wall bottom end surface of the box body 1; the lower end surface of the rear buffer plate 8 is slidably connected with the inner wall bottom end surface of the box body 1; the planar size of the box cover 2 is equal to the opening planar size of the upper end surface of the box body 1.
[0031] Specifically: by setting the rotating shaft 4 and making its lower end rotatably connected with the inner wall bottom end surface of the box body 1, the rotating shaft 4 can rotate on the inner wall bottom end surface of the box body 1 while driving the transmission gear 5 arranged on the side wall to rotate, and then the transmission gear 5 meshes to drive the buffer rack 6 to move horizontally; by arranging the limiting groove 10 and installing two limiting sliding blocks 11 at the lower end of the buffer rack 6, the buffer rack 6 can move horizontally under the meshing rotation of the transmission gear 5, and at the same time, the two limiting sliding blocks 11 can synchronously slide in the limiting groove 10 to ensure the horizontal displacement of the buffer rack 6, so that the buffer rack 6 can avoid deviation during displacement; by arranging a plurality of threaded holes 12, threaded grooves 13 and installing matching mounting bolts 14, when the box cover 2 covers the upper end surface of the box body 1, the plurality of threaded holes 12 are matched with the corresponding threaded grooves 13 in position, at this time, the installation personnel can use the mounting bolts 14 to threadedly enter the threaded grooves 13 from one side of the threaded holes 12 to realize the threaded fastening and installation of the box cover 2 above the box body 1; by fixedly connecting the upper end surface of the rotating shaft 4 with the lower end surface of the shaft disc 3, when the installation door plate is sleeved on the upper shaft block 15, the shaft disc 3 can be driven by the upper shaft block 15 to rotate in the sliding hole when the installation door plate rotates; by making the planar size of the box cover 2 equal to the opening planar size of the upper end surface of the box body 1, when the box cover 2 completes the capping of the opening of the upper end surface of the box body 1, the equal planar size of the box cover 2 and the opening of the upper end surface of the box body 1 can ensure that the external dust cannot enter the box body 1 and cause dust falling on the components in the box body 1, thereby prolonging the service life of the internal buffer assembly of the box body 1.
[0032] The working principle of the utility model is as follows: after the lower end of the installation door plate is sleeved on the upper shaft block 15 of the upper end of the shaft disc 3 and the overall installation is completed, the personnel can open the installation door plate by the upper shaft block 15 and the shaft disc 3 to drive the transmission gear 5 arranged below, and then the transmission gear 5 can push the first spring 7 forward through the meshing with the buffer rack 6, the first spring 7 at the front end is compressed to the extreme point when the door plate is opened to the angle threshold value, after the personnel releases the pressure on the installation door plate, the first spring 7 resets and pushes the buffer rack 6 to one side of the two second springs 9, in order to avoid that the reset speed of the buffer rack 6 is too fast due to the excessive reset force of the first spring 7, the two second springs 9 arranged on the other side of the buffer rack 6 can provide a buffering force for the reset buffer rack 6, so as to avoid that the reset of the buffer rack 6 is too fast to cause damage to the parts.
[0033] The above disclosed preferred embodiments of the utility model are only used for helping to describe the utility model, the preferred embodiments do not describe all the details, and the utility model is not limited to the specific implementation mode, the description selects and specifically describes these embodiments, in order to better explain the principle and practical application of the utility model, so that the person skilled in the art can well understand and utilize the utility model.
Claims
1. A land spring structure with adjustable buffering function, comprising a box body (1) and a buffering assembly, characterized in that: The buffering assembly is arranged in the box body (1), and the box body (1) is covered with a box cover (2); The buffering assembly comprises a buffering rack (6), the rear end side wall of the buffering rack (6) is fixedly connected with a rear buffering plate (8), the side wall of the rear buffering plate (8) is symmetrically fixedly installed with a second spring (9), and the other end of the two second springs (9) is fixedly connected with the inner wall of the box body (1); The tooth surface of the buffering rack (6) is meshedly connected with a transmission gear (5), the upper end of the transmission gear (5) is provided with a shaft disc (3), the upper end of the shaft disc (3) is provided with an upper shaft block (15), the upper shaft block (15) is sleeved with a mounting door plate, the front end side wall of the buffering rack (6) is fixedly connected with a first spring (7), and the other end of the first spring (7) is fixedly connected with the inner wall of the box body (1).
2. The ground spring structure with an adjustable damping function according to claim 1, characterized in that: The center of the transmission gear (5) is fixedly connected with a rotating shaft (4), and the lower end of the rotating shaft (4) is rotatably connected with the bottom end surface of the inner wall of the box body (1).
3. The ground spring structure with an adjustable damping function according to claim 1, characterized in that: The bottom end surface of the inner wall of the box body (1) is provided with a limiting groove (10), and the lower end surface of the buffering rack (6) is fixedly installed with two limiting sliding blocks (11), and the side walls of the two limiting sliding blocks (11) are slidably connected with the inner wall of the limiting groove (10).
4. The ground spring structure with an adjustable damping function according to claim 1, characterized in that: The upper end surface of the box cover (2) is provided with a plurality of threaded holes (12), the upper end surface of the box body (1) is provided with a plurality of threaded grooves (13) matched with the threaded holes (12), and the threaded holes (12) and the threaded grooves (13) are provided with mounting bolts (14).
5. The ground spring structure with an adjustable damping function according to claim 2, characterized in that: The upper end surface of the rotating shaft (4) is fixedly connected with the bottom end surface of the shaft disc (3), the upper end surface of the box cover (2) is provided with a sliding hole, and the side wall of the shaft disc (3) is slidably connected with the inner wall of the sliding hole.
6. The ground spring structure with an adjustable damping function according to claim 1, characterized in that: The lower end surface of the buffering rack (6) is slidably connected with the bottom end surface of the inner wall of the box body (1).
7. The ground spring structure with an adjustable damping function according to claim 1, characterized in that: The lower end surface of the rear buffering plate (8) is slidably connected with the bottom end surface of the inner wall of the box body (1).
8. The ground spring structure with an adjustable damping function according to claim 1, characterized in that: The planar size of the box cover (2) is equal to the opening planar size of the upper end surface of the box body (1).