Buffer device and hinge
By setting the slide chute on the shaft core of the hinge and setting the limit block on the inner wall of the casing, the complex problem of the existing hinge buffer device processing the slide chute is solved, improving the processing efficiency and reducing the cost.
Patent Information
- Application Number
- CN202420935302.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-30
- Publication Date
- 2025-02-18
- Estimated Expiration
- 2034-04-30
AI Technical Summary
The existing hinge buffering device has a complex process for processing chutes inside the casing, resulting in low production efficiency and high cost.
A slide chute is set on the shaft core. The slide chute is composed of a concave cut surface and a shoulder, and a limit block is set on the inner wall of the sleeve. When the shaft core slides along the sleeve, the limit block is stuck to both ends of the slide chute to meet the energy storage parts The sliding stroke of the drive shaft core.
By setting the sliding distance of the shaft core, the processing technology is simplified, the processing efficiency is improved and the production cost is reduced.
Smart Images
Figure CN222501415U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of door and window hinges, and particularly relates to a hinge with a buffer device. Background Art
[0002] The hinges installed on doors and windows use buffer devices to slow down the closing speed of doors and windows. The existing buffer devices install energy storage components, damping components, and shaft cores inside a sealed sleeve, and use the sleeve to drive the shaft core to slide to compress or release the energy storage components. When the energy storage components are released, the shaft core is buffered by the damping component, thereby slowing down the rotation speed of the sleeve, and then the blades of the hinge drive the doors and windows to achieve delayed closing. The energy storage release and compression storage of the above-mentioned energy storage components require the setting of the sliding distance of the shaft core, which is achieved by setting a slide groove of equal length in the sleeve. However, the processing technology of processing the slide groove inside the sleeve is complicated, resulting in low production efficiency and increased production costs. Utility Model Content
[0003] The utility model aims to provide a buffer device and a hinge using the buffer device, which can reduce the processing difficulty and improve the processing efficiency by setting the sliding distance of the shaft core.
[0004] The buffer device includes a sleeve and an axis core, an energy storage component, and a damping component built into the sleeve. The energy storage component and the damping component are respectively abutted against two sides of the axis core. The axis core is provided with a slide groove. The inner wall of the sleeve is provided with a limit block. When the axis core slides along the sleeve, the limit block can be clamped at both ends of the slide groove.
[0005] The slide groove is divided into two parts along the circumferential direction of one end of the shaft core. Each part of the slide groove consists of a concave section and two shoulders. The two shoulders are arranged at both ends of the concave section. A limit block is correspondingly arranged for each part of the slide groove, and each limit block is close to the corresponding concave section.
[0006] The other end of the shaft core is provided with two sections of spiral grooves, the sleeve is composed of a first sleeve and a second sleeve, the first sleeve is inserted into the second sleeve through a sleeve, the other end of the shaft core is built into the sleeve, the sleeve is correspondingly installed in a section of spiral groove through two balls, the energy storage component is built into the first sleeve, and the other end of the shaft core abuts against the energy storage component; one end of the shaft core and the damping component are built into the second sleeve, one end of the shaft core abuts against the damping component, and the limit block is provided on the inner wall of the first sleeve.
[0007] The tail ends of the first sleeve and the second sleeve are both provided with internal threads, the tail end of the energy storage component is fixed by the internal threads, the tail end of the damping component is fixed by the internal threads, and the first sleeve and the second sleeve are both sealed by a cover.
[0008] The energy storage component is a spring, and the damping component is a hydraulic rod.
[0009] The energy storage component is a hydraulic rod, and the damping component is a hydraulic rod.
[0010] The hinge includes a buffer device, wherein the first sleeve is sleeved with a first leaf piece through a spline pattern, the second sleeve is sleeved with a second leaf piece through a spline pattern, a bearing is arranged between the first leaf piece and the second leaf piece, and the bearing is sleeved at the joint of the first sleeve and the second sleeve.
[0011] The beneficial effects of the utility model are as follows: a slide groove is arranged on the shaft core, and the processing of the concave section and the shaft shoulder of the slide groove is very simple, thereby improving the processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 A three-dimensional diagram of a hinge;
[0013] Figure 2 for Figure 1 An exploded view of a first embodiment of the buffer device shown;
[0014] Figure 3 for Figure 1 An exploded view of a second embodiment of the buffer device is shown. DETAILED DESCRIPTION
[0015] The utility model is further described in detail below in conjunction with the accompanying drawings.
[0016] Figure 1 , 2 As shown in Figures 3 and 4, the hinge includes a buffer device H, a first sleeve 4 is sleeved with a first leaf 16 through a spline pattern 15, and a second sleeve 5 is sleeved with a second leaf 17 through a spline pattern 15. The spline pattern ensures that the first sleeve and the second sleeve are tightly fitted with the first leaf 16 and the second leaf 17 respectively; a bearing 18 is provided between the first leaf 16 and the second leaf 17, and the bearing 18 is sleeved at the joint of the first sleeve 4 and the second sleeve 5. The setting of the bearing avoids mutual friction between the first leaf and the second leaf, and also ensures smooth rotation of the first sleeve.
[0017] The buffer device H comprises a shaft core 1, an energy storage member 2, a damping member 3 and a sleeve. The sleeve is composed of a first sleeve 4 and a second sleeve 5. The first sleeve 4 is plugged into the second sleeve 5 through a sleeve 6. Two sections of spiral grooves 7 are provided at one end of the shaft core 1, and a slide groove 8 is provided at the other end of the shaft core 1. The slide groove 8 is divided into two parts along the circumference of the shaft core 1. Each section of the slide groove 8 is composed of a concave cut surface 9 and two shaft shoulders 10. The two shaft shoulders 10 are arranged at both ends of the concave cut surface 9. The length of the slide groove satisfies the stroke of the energy storage member driving the shaft core to slide. However, the concave cut surface and the shaft shoulder are processed on a section of the shaft, and the processing is very simple, which improves the processing efficiency. One end of the shaft core 1 is built into the sleeve 6, and the sleeve 6 is correspondingly installed in a spiral groove 7 through two balls 11. The energy storage component 2 is built into the first sleeve 4, and the end face of one end of the shaft core 1 abuts against the energy storage component 2; the other end of the shaft core 1 and the damping component 3 are built into the second sleeve 5, and the end face of the other end of the shaft core 1 abuts against the damping component 3. Limiting blocks 12 corresponding to the two-part sliding groove 8 are set on the inner wall of the first sleeve 4, and each limiting block 12 is close to the corresponding concave cut surface 9. When the shaft core 1 slides, the shoulder 10 is limited by the limiting block 12, thereby satisfying the sliding distance of the shaft core. The tail end of the first sleeve 4 and the tail end of the second sleeve 5 are both provided with internal threads 13, and the tail end of the energy storage component 2 is fixed by the internal threads 13, and the tail end of the damping component 3 is also fixed by the internal threads 13. At the same time, the first sleeve 4 and the second sleeve 5 are both sealed by the cover 14.
[0018] There are two ways to combine the energy storage element and the damping element: the energy storage element 2 can be a spring, and the damping element 3 can be a hydraulic rod (such as Figure 2 ); the energy storage member 2 may be a hydraulic rod and the damping member 3 may be a hydraulic rod (eg Figure 3 ).
[0019] When the door and window are opened and closed relative to the hinge, the door and window drive the first leaf 16 to rotate, and the second leaf 17 does not rotate, so that the first leaf 16 drives the first sleeve 4 to rotate, and the rotation of the first sleeve 4 drives the two balls 11 to slide along the spiral groove 7, so that the first sleeve 4 can drive the shaft core 1 to slide along the first sleeve 4 and the second sleeve 5. When the door and window are opened, the shaft core 1 slides along the first sleeve 4, and the shaft core 1 compresses the energy storage member 2 to store energy; when the door and window are closed, the energy storage member 2 releases the stored energy and pushes the shaft core 1 to slide against the damping member 3 along the second sleeve 5. At this time, the damping member 3 offsets part of the stored energy, slows down the rotation speed of the first sleeve 4, and thus slows down the rotation speed of the first leaf 16, thereby achieving the buffering purpose of closing the door and window.
Claims
1. A buffer device, characterized in that: The invention comprises a sleeve and an axis core (1), an energy storage component (2) and a damping component (3) built into the sleeve, wherein the energy storage component (2) and the damping component (3) are respectively abutted against two sides of the axis core (1), the axis core (1) is provided with a slide groove (8), and the inner wall of the sleeve is provided with a limit block (12). When the axis core (1) slides along the sleeve, the limit block (12) can be clamped at two ends of the slide groove (8), and the slide groove (8) is divided into two parts along the circumferential direction of one end of the axis core (1), and each part of the slide groove (8) is composed of a concave cut surface (9) and two shaft shoulders (10), and the two shaft shoulders (10) are arranged at two ends of the concave cut surface (9), and each part of the slide groove (8) is correspondingly provided with a limit block (12), and each limit block (12) is close to the corresponding concave cut surface.
2. The buffer device according to claim 1, characterized in that: The other end of the shaft core (1) is provided with two sections of spiral grooves (7); the sleeve is composed of a first sleeve (4) and a second sleeve (5); the first sleeve (4) is plugged into the second sleeve (5) via a sleeve (6); the other end of the shaft core (1) is built into the sleeve (6); the sleeve (6) is correspondingly mounted on a section of the spiral groove (7) via two balls (11); the energy storage component (2) is built into the first sleeve (4); the other end of the shaft core (1) abuts against the energy storage component (2); one end of the shaft core (1) and the damping component (3) are built into the second sleeve (5); one end of the shaft core (1) abuts against the damping component (3); and the limit block (12) is provided on the inner wall of the first sleeve (4).
3. The buffer device according to claim 2, characterized in that: The tail ends of the first sleeve (4) and the second sleeve (5) are both provided with internal threads (13); the tail end of the energy storage component (2) is fixed via the internal threads (13); the tail end of the damping component (3) is fixed via the internal threads (13); and the first sleeve (4) and the second sleeve (5) are both sealed via a sealing cover (14).
4. The buffer device according to claim 3, characterized in that: The energy storage component (2) is a spring, and the damping component (3) is a hydraulic rod.
5. The buffer device according to claim 3, characterized in that: The energy storage component (2) is a hydraulic rod, and the damping component (3) is a hydraulic rod.
6. A hinge comprising the buffer device according to claim 4 or 5, characterized in that: The first sleeve (4) is sleeved with a first leaf (16) via a spline pattern (15), and the second sleeve (5) is sleeved with a second leaf (17) via a spline pattern (15). A bearing (18) is provided between the first leaf (16) and the second leaf (17), and the bearing (18) is sleeved at a joint between the first sleeve (4) and the second sleeve (5).