CN219910416U - Door hinge with buffering function - Google Patents

Abstract

The utility model relates to a door fitting, and discloses a door hinge with a buffering function. When the hinge is closed along with the door, the first page plate and the second page plate are mutually folded, and the plate surface of the second page plate is propped against the extended buffer rod in the folding process, so that the buffer rod can overcome the elastic shrinkage of the elastic resetting piece. In this process, the elastic restoring member plays a role in reducing impact, thereby reducing noise generated by closing the door and reducing collision between the door and the door frame.

Description

Door hinge with buffering function

Technical Field

The present utility model relates to door fittings, and more particularly, to a door hinge having a cushioning function.

Background

The door hinge, also called hinge, is a device capable of making door rotate naturally and smoothly to open and close, and mainly includes a first hinge plate and a second hinge plate pivoted with each other, and the first hinge plate and the second hinge plate are respectively fixed on the side edge of door and door frame so as to implement relative rotation between door and door frame. A similar door hinge is disclosed in the patent publication CN110847733 a.

The door hinge can only realize the function of door body rotation, when a user closes the door, the door body is easy to strike the door frame to generate noise, and meanwhile, the door body and the door frame are easy to be physically damaged, so that improvement is still needed.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides the door hinge with the buffer function, the buffer component can play a role in buffering when the first page plate and the second page plate are closed, the noise generated by the door body provided with the hinge due to overlarge force for closing the door is avoided, and the risk of damaging the door body and the door frame is reduced.

In order to solve the technical problems, the utility model is solved by the following technical scheme:

the utility model provides a hinge for door with buffer function, including first page board and the second page board of mutual pin joint, first page board is used for being close to the plane of second page board and is provided with buffer unit, buffer unit is including setting up perpendicularly in the guide sleeve on the first page board plane, and slip wears to locate the cushion bar in the guide sleeve, the external diameter of cushion bar is less than the guide sleeve's internal diameter, the guide sleeve is kept away from the split ring of first page board and is equipped with the spacing ring, the inside wall butt of spacing ring is in the lateral wall of cushion bar, the outer peripheral surface of cushion bar and in the position ring that is close to first page board be equipped with the anticreep ring that is used for the butt spacing ring, the guide sleeve is provided with the closing cap near the opening of first page board, be provided with elasticity reset piece between closing cap and the cushion bar so that the cushion bar has the trend of keeping away from first page board.

By adopting the scheme, when the hinge is in an open state along with the door, the buffer rod can stretch out under the elastic action of the elastic reset piece. When the hinge is closed along with the door, the first page plate and the second page plate are mutually folded, and the plate surface of the second page plate is propped against the extended buffer rod in the folding process, so that the buffer rod can overcome the elastic shrinkage of the elastic resetting piece. In this process, the elastic restoring member plays a role in reducing impact, thereby reducing noise generated by closing the door and reducing collision between the door and the door frame.

Preferably, the elastic resetting piece is a pressure spring, and two ends of the pressure spring are respectively propped against opposite surfaces of the buffer rod and the sealing cover.

By adopting the scheme, the pressure spring is simple in structure, convenient to install and low in cost, and can provide stronger elastic supporting force, so that the elastic buffering performance of the buffering component is improved.

Preferably, the end surface of the buffer rod, which is far away from the first page plate, is in rolling clamping fit with a ball for abutting against the second page plate.

By adopting the scheme, the ball can provide stronger supporting force for the second page plate and reduce friction between the end part of the buffer rod and the surface of the second page plate, so that the service life of the buffer assembly is prolonged.

Preferably, the plate surface of the first page plate vertically penetrates through a jack for plugging the guide sleeve, the inner side wall of the jack is provided with a ring groove in a surrounding manner at one end far away from the second page plate, the outer circumferential surface of the guide sleeve is provided with a clamping ring plugged in the ring groove in a surrounding manner at a part far away from the second page plate, and the outer diameter of the clamping ring is larger than the aperture of the jack.

By adopting the scheme, the buffer component can pass through the jack from the back of the first page and then be arranged on the front of the first page. After the first page is installed on the corresponding installation surface, the whole buffer assembly can be axially locked on the first page by means of the clamping ring and the annular groove, so that the buffer assembly is fixed.

Preferably, the outer side wall ring of the clamping ring is provided with an elastic supporting ring, and the elastic supporting ring is in interference fit with the inner side wall of the ring groove.

By adopting the scheme, the elastic support ring is in interference fit with the inner side wall of the annular groove, the clamping ring and the annular groove can be positioned, the buffer component is prevented from loosening from the jack in the installation process of the hinge, and the installation efficiency and convenience of the hinge are further improved.

Preferably, the buffer components are arranged at the upper side and the lower side of the first page plate respectively.

By adopting the scheme, the buffer effect between the first page plate and the second page plate is better.

The utility model has the remarkable technical effects due to the adoption of the technical scheme: when the hinge is in an open state along with the door, the buffer rod can stretch out under the elastic action of the elastic reset piece. When the hinge is closed along with the door, the first page plate and the second page plate are mutually folded, and the plate surface of the second page plate is propped against the extended buffer rod in the folding process, so that the buffer rod can overcome the elastic shrinkage of the elastic resetting piece. In this process, the elastic restoring member plays a role in reducing impact, thereby reducing noise generated by closing the door and reducing collision between the door and the door frame.

Drawings

Fig. 1 is a schematic view showing a structure of an opened state of a hinge in the present embodiment;

FIG. 2 is a schematic diagram of a buffer assembly according to the present embodiment;

fig. 3 is an exploded view of the hinge in the opened state of the present embodiment;

FIG. 4 is an enlarged schematic view of portion A of FIG. 3;

FIG. 5 is a schematic view showing the structure of the hinge in the closed state in the present embodiment;

fig. 6 is an enlarged schematic view of the portion B shown in fig. 5.

The names of the parts indicated by the numerical reference numerals in the above drawings are as follows: 1. a first page; 2. a second page plate; 3. a buffer assembly; 4. a guide sleeve; 5. a buffer rod; 6. a limiting ring; 7. anti-slip ring; 8. a cover; 9. an elastic reset piece; 10. a ball; 11. a jack; 12. a ring groove; 13. a clamping ring; 14. an elastic support ring; 15. a rotating shaft.

Detailed Description

The present utility model will be described in further detail with reference to the accompanying drawings and examples.

As shown in fig. 1 and 2, the hinge for a door with a buffering function disclosed in the present embodiment includes a first leaf 1 and a second leaf 2 pivoted to each other by a rotation shaft 15, and the first leaf 1 and the second leaf 2 are fixed to mounting surfaces of a door (not shown) and a door frame (not shown), respectively. The first page 1 is used for being close to the plane of the second page 2 and is provided with the buffer assembly 3, and the buffer assembly 3 is provided with two and sets up respectively in the upper and lower both sides of the first page 1 to promote the cushioning properties. Specifically, the buffer assembly 3 includes the guide sleeve 4 that sets up perpendicularly on first page 1 plane, and slip wears to locate the buffer rod 5 in the guide sleeve 4, the external diameter of buffer rod 5 is less than the internal diameter of guide sleeve 4, the split ring that guide sleeve 4 kept away from first page 1 is equipped with spacing ring 6, the inside wall butt of spacing ring 6 is in the lateral wall of buffer rod 5, the outer peripheral face of buffer rod 5 is equipped with the anticreep ring 7 that is used for the butt spacing ring 6 in the position ring that is close to first page 1, the opening that guide sleeve 4 is close to first page 1 is provided with closing cap 8, be provided with elastic reset piece 9 between closing cap 8 and the buffer rod 5 so that buffer rod 5 has the trend of keeping away from first page 1. In this embodiment, the elastic restoring member 9 is a compression spring, and two ends of the compression spring respectively abut against opposite surfaces of the buffer rod 5 and the sealing cover 8, so as to provide a strong enough elastic supporting force.

As shown in fig. 2, in order to reduce sliding friction between the end of the damper 5 and the second page 2, the end surface of the damper 5 away from the first page 1 is roll-fitted with a ball 10 for abutting against the second page 2.

As shown in fig. 3 and fig. 4, in order to improve the installation efficiency and the firmness of the buffer assembly 3, the plate surface of the first page 1 vertically penetrates through the insertion hole 11 for inserting the guide sleeve 4, the inner side wall of the insertion hole 11 is provided with a ring groove 12 in a surrounding manner at one end far away from the second page 2, the outer circumferential surface of the guide sleeve 4 is provided with a clamping ring 13 inserted in the ring groove 12 in a surrounding manner at a part far away from the second page 2, and the outer diameter of the clamping ring 13 is larger than the aperture of the insertion hole 11.

As shown in fig. 4, in order to further improve the installation efficiency and convenience of the hinge, the outer sidewall ring of the clamping ring 13 is provided with an elastic supporting ring 14, and the elastic supporting ring 14 is preferably made of rubber, so that the elastic supporting ring has better elasticity and sealing performance. The elastic support ring 14 is in interference fit with the inner side wall of the ring groove 12, so that the buffer component 3 can be positioned in the jack 11 in advance in the installation process of the hinge, and the installation of the hinge is more convenient.

The specific use process is as follows:

when the hinge is installed, one end of the guide sleeve 4 with the ball 10 is sequentially inserted into the annular groove 12 and the insertion hole 11 until the clamping ring 13 is axially inserted into the annular groove 12 and is abutted against the end face of the insertion hole 11. At this time, the elastic clamping ring 13 at the outer side of the clamping ring 13 is in interference abutting contact with the inner side wall of the ring groove 12, so as to complete the pre-positioning of the buffer assembly 3. In this state, the first and second plates 1 and 2 are fixed to the mounting surfaces of the door (not shown) and the door frame (not shown) by screws (not shown), respectively, so that the mounting surface corresponding to the first plate 1 seals the opening of the ring groove 12, thereby completing the fixation of the damper assembly 3.

After the hinge is mounted, when the hinge door (not shown) is opened, the buffer rod 5 can be extended under the elastic force of the elastic restoring member 9. As shown in fig. 5 and 6, when the hinge following door (not shown) is closed, the first and second plates 1 and 2 are mutually folded, and the plate surface of the second plate 2 is pressed against the extended buffer rod 5 during the folding process, so that the buffer rod 5 can overcome the elastic shrinkage of the elastic reset piece 9. In this process, the elastic restoring member 9 plays a role of reducing impact, thereby reducing noise generated by closing the door, and reducing collision between the door (not shown) and the door frame (not shown) to extend the service life of the door and the door frame.

Claims (6)

1. The utility model provides a hinge for door with buffer function, includes first page (1) and second page (2) of mutual pin joint, its characterized in that: the plane that first page (1) is used for being close to second page (2) is provided with buffer assembly (3), buffer assembly (3) are including perpendicular guide sleeve (4) that set up on first page (1) plane, and slip wears to locate buffer rod (5) in guide sleeve (4), the external diameter of buffer rod (5) is less than the internal diameter of guide sleeve (4), the split ring that first page (1) was kept away from to guide sleeve (4) is equipped with spacing ring (6), the inside wall butt of spacing ring (6) is in the lateral wall of buffer rod (5), the outer peripheral face of buffer rod (5) and in the position ring that is close to first page (1) are equipped with anticreep ring (7) that are used for butt spacing ring (6), the opening that guide sleeve (4) is close to first page (1) is provided with closing cap (8), be provided with elasticity reset piece (9) between closing cap (8) and the buffer rod (5) so that buffer rod (5) have the trend of keeping away from first page (1).

2. The hinge for door with buffering function according to claim 1, wherein: the elastic resetting piece (9) is a pressure spring, and two ends of the pressure spring are respectively propped against the opposite surfaces of the buffer rod (5) and the sealing cover (8).

3. The hinge for door with buffering function according to claim 1, wherein: the end surface of the buffer rod (5) far away from the first page plate (1) is in rolling clamping embedding with a ball (10) used for abutting against the second page plate (2).

4. The hinge for door with buffering function according to claim 1, wherein: the face of first page (1) runs through perpendicularly and has jack (11) that supplies guide sleeve (4) grafting, and annular (12) have been seted up in the one end of keeping away from second page (2) in the inside wall of jack (11) and encircleing, and the outer peripheral face of guide sleeve (4) is equipped with joint ring (13) of grafting in annular (12) in the partial ring of keeping away from second page (2), and the external diameter of joint ring (13) is greater than the aperture of jack (11).

5. The hinge for door with buffering function of claim 4, wherein: the outer side wall ring of the clamping ring (13) is provided with an elastic supporting ring (14), and the elastic supporting ring (14) is in interference fit with the inner side wall of the ring groove (12).

6. The hinge for door having a buffering function according to any one of claims 1 to 5, wherein: the buffer components (3) are arranged at two sides and are respectively arranged at the upper side and the lower side of the first page plate (1).