Buffering and noise-reducing door stopper

Abstract

The utility model relates to the technical field of hardware for doors, and discloses a buffering and noise-reducing door stopper which comprises a fixing frame, a door stopper and a buffering and noise-reducing device. A limiting groove is formed in the middle of the door stopper seat; one end of the connecting bracket is hinged in the mounting groove, the other end of the connecting bracket extends towards the outer side and is provided with a limiting piece, and a guide column is arranged on the connecting bracket; the guide block is rotationally arranged in the mounting groove, one end of the guide block is provided with a protruding part abutting against the guide column, and the two sides of the protruding part are a first guide face and a second guide face; the first spring is arranged in the mounting groove and applies acting force to the guide block to enable the protruding part to abut against the guide column; the two ends of the damping mechanism are hinged to the connecting support and the groove wall of the mounting groove respectively; when the first guide face and the second guide face abut against the guide column respectively, the guide block forms torque in the opposite direction on the connecting support, and when the fixing frame is close to the door stopper base, the guide column moves to abut against the second guide face from abutting against the first guide face. The buffering and noise-reducing door stopper can reduce noise in the locking process.

Description

Technical Field

[0001] The utility model relates to the technical field of door hardware, and in particular to a buffering and noise-reducing door stopper. Background Art

[0002] The existing conventional door stopper includes two parts, one on the door leaf and the other on the ground / wall. During the door opening process, when the door leaf moves to a certain angle, the two parts touch each other, triggering the door stopper to lock the door leaf. However, during the locking process, the rigid contact between the door stopper and the door leaf will still cause collisions and generate certain noises, and the door stopper locking process is not quiet enough. In addition, if the locking structure of the door stopper is accidentally touched due to human factors before entering the door stopper seat, it will enter the locked state in advance, resulting in the inability to enter the door stopper seat and complete the locking action. Utility Model Content

[0003] The present utility model is made to solve the above-mentioned technical problems, and one of its purposes is to provide a buffering and noise-reducing door stopper, which not only has the basic locking function of a door stopper, but also can reduce the noise during the locking process.

[0004] Another object of the present invention is to provide a buffering and noise-reducing door stopper, which can still complete the locking action and achieve reset even after the locking structure of the door stopper is accidentally touched by a person.

[0005] According to one embodiment of the utility model, a buffering and noise reduction door stopper is provided, comprising: a fixing frame, a mounting groove is formed in the middle part; a door stopper seat, a limiting groove is formed in the middle part; a connecting bracket, one end of which is hinged in the mounting groove, and the other end extends outward and a limiting piece is provided at the end part, and a guide column is provided on the connecting bracket; a guide block is rotatably arranged in the mounting groove, one end of which is formed with a protrusion that abuts against the guide column, and the two sides of the protrusion are a first guide surface and a second guide surface; a first spring is arranged in the mounting groove, and a force is applied to the guide block to make the protrusion abut against the guide column; a damping mechanism, one end of which is hinged to the connecting bracket, and the other end of which is hinged to the groove wall of the mounting groove; wherein when the first guide surface and the second guide surface abut against the guide column respectively, the guide block forms a torque in opposite directions on the connecting bracket, and when the fixing frame and the door stopper seat are close to each other, the limiting piece enters the limiting groove, the connecting bracket rotates, and the guide column moves from abutting against the first guide surface to abutting against the second guide surface.

[0006] As an embodiment, a groove wall of the limiting groove on a side close to the fixing frame is lower than a groove wall on an opposite side.

[0007] As an embodiment, the limiting member is a roller rotatably arranged at the other end of the connecting bracket.

[0008] As an embodiment, it also includes: a roller seat, which is slidably arranged at the other end of the connecting bracket, and the roller is hinged in the roller seat; a second spring, which is arranged on the connecting bracket and applies an outward force to the roller seat; a guide portion, which is arranged on the side of the door stop seat close to the fixed frame, has a width not greater than the width of the roller, and the side is an inclined guide surface.

[0009] As an embodiment, it also includes: a stop block, which is arranged in the middle part of the connecting bracket; a guide rod, one end of which is fixed on the roller seat, and the other end is passed through the stop block; wherein the second spring is sleeved on the guide rod, and its two ends are respectively abutted against the stop block and the roller seat.

[0010] As an embodiment, a buffer is provided on the surface of the limiting member and / or the limiting groove.

[0011] As an embodiment, it further includes: a sleeve, which is sleeved on the guide column.

[0012] As an embodiment, the groove wall of the installation groove is provided with an arc-shaped sliding groove, and the two ends of the guide column are slidably arranged in the sliding groove.

[0013] As an embodiment, it further includes: an outer cover, which is arranged on the outer periphery of the fixing frame and has a through hole at one end for allowing the connecting bracket to extend outward.

[0014] As an embodiment, the fixing frame is installed on the door leaf, and the door stopper is installed on the ground or the wall.

[0015] According to the above description and practice, the buffering and noise reduction door catch described in the utility model has a buffering function compared to the traditional door catch by arranging a damping mechanism, a connecting bracket and a limiter that can be linked with the door catch seat in the fixed frame, which can make the locking process of the door catch quieter and smoother. In addition, by arranging a flexible material on the surface of the limiter and / or the limit groove, the noise generated by the collision during the locking process of the door catch can be further reduced. In addition, by arranging a roller seat that enables the roller to slide on the connecting bracket, the problem that the door catch cannot be used when the user accidentally touches the connecting bracket and causes the connecting bracket assembly to return to the locked position can be solved, so that the buffering door catch can still complete the locking action and reset after an accidental touch, and maintain stable operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The present invention is a schematic diagram of the installation of a buffering and noise-reducing door stopper according to an embodiment of the present invention.

[0017] Figure 2 It is a schematic diagram of the three-dimensional cross-sectional structure of a buffering and noise-reducing door stopper involved in one embodiment of the utility model.

[0018] Figures 3 to 6 It is a schematic diagram of the cross-sectional structure of the buffering and noise reduction door stopper involved in an embodiment of the utility model, which shows the process of the fixing frame and the door stopper seat approaching each other to achieve locking.

[0019] The reference numerals in the figure are:

[0020] 1. Fixing bracket 2. Door stopper 3. Connecting bracket

[0021] 4. Guide block 5. Guide column 6. Damping mechanism

[0022] 7. Door leaf 11, mounting groove 12, fixing part

[0023] 13. Slide groove 21, limit groove 22, guide part

[0024] 41, raised portion 411, first guide surface 412, second guide surface

[0025] 51, shaft sleeve 81, limiter 82, roller seat

[0026] 83, stop block 84, guide rod 9, first spring DETAILED DESCRIPTION

[0027] The exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that the disclosure will be more comprehensive and complete and fully convey the concepts of the exemplary embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0028] In addition, the accompanying drawings are only schematic diagrams of the present disclosure and are not necessarily drawn to scale. The same reference numerals in the figures represent the same or similar parts, and thus their repeated descriptions will be omitted. It should be noted that in the present disclosure, the terms "including", "configured with", and "set in" are used to express the meaning of open-ended inclusion, and mean that in addition to the listed elements / components / etc., there may be other elements / components / etc.; the terms "first", "second", etc. are only used as marks, and are not restrictions on the number or order of their objects; the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.

[0029] Unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0030] In this embodiment, a buffer noise reduction door stopper is disclosed. Please refer to Figures 1 to 6 The buffering and noise reduction door stopper includes a fixing frame 1, a door stopper seat 2, a connecting bracket 3, a guide block 4, a first spring 9 and a damping mechanism 6. In this embodiment, the fixing frame 1 is arranged on the door leaf 7, and a mounting groove 11 is provided in the middle part for accommodating the connecting bracket 3, the guide block 4, the first spring 9 and the damping mechanism 6. A fixing portion 12 bent outward is provided on the side of the fixing frame 1, and a fixing hole is provided in the middle of the fixing portion 12, and the fixing frame 1 can be fixedly connected to the door leaf 7 by a screw provided in the fixing hole. The door stopper seat 2 is arranged on the ground or the wall, and a limiting groove 21 is provided in the middle part, which is used to cooperate with the guide block 4, the first spring 9, the damping mechanism 6 and the connecting bracket 3 in the fixing frame 1 to lock the door leaf 7.

[0031] The connecting bracket 3 is composed of two bent plates, which are connected together to form a space in the middle where components can be installed. The upper end of the connecting bracket 3 is hinged in the installation groove 11, and the lower end extends outward and is provided with a limiter 81 at the end. As shown in the figure, the limiter 81 is clamped in the middle of the two plates. A buffer made of flexible material, such as rubber, silicone, etc., is provided on the surface of the limiter 81 to reduce noise when contacting the fixing seat and the limiter groove 21 thereon. A guide column 5 is provided in the middle of the connecting bracket 3 for cooperating with the guide block 4.

[0032] The guide block 4 is rotatably arranged in the installation groove 11, and a protrusion 41 is formed at one end thereof to abut against the guide column 5, and the two sides of the protrusion 41 are a first guide surface 411 and a second guide surface 412. The first spring 9 is arranged in the installation groove 11 and exerts a force on the guide block 4 to make the protrusion 41 abut against the guide column 5. Figures 3 to 6 As shown, the first spring 9 is a torsion spring, and the force applied by the first spring 9 to the guide block 4 can form a clockwise moment on the guide block 4, so that the protrusion 41 can be tightly pressed against the guide column 5. The guide block 4 indirectly forms a moment on the connecting bracket 3, so that the connecting bracket 3 has a rotation tendency. One end of the damping mechanism 6 is hinged to the connecting bracket 3, and the other end is hinged to the groove wall of the installation groove 11. When the connecting bracket 3 rotates, it can play a buffering role, making its rotation process more stable.

[0033] Specifically, Figure 2 As shown, when the first guide surface 411 is against the guide column 5, the guide block 4 forms a clockwise torque on the connecting bracket 3, so that the limit piece 81 at the lower end of the connecting bracket 3 can be directed toward the outside of the installation groove 11, that is, toward the end of the door stop seat 2 on the left side. At this time, the buffer noise reduction door stop has not entered the locking process. As the fixing frame 1 and the door stop seat 2 approach each other, the limit piece 81 gradually enters the limit groove 21, and then pushes the connecting bracket 3 to rotate counterclockwise. At this time, the guide column 5 moves along the first guide surface 411 toward the middle of the raised portion 41. In this process, it is necessary to overcome the resistance of the above-mentioned clockwise torque. Until as shown Figure 5 When the second guide surface 412 is reached, the guide block 4 forms a counterclockwise torque on the connecting bracket 3, which can accelerate the approach of the fixing frame 1 and the door stopper seat 2, and finally make the limiting member 81 completely enter the limiting groove 21, completing the locking action of the door stopper, that is, Figure 6 In the locked state, the counterclockwise torque can make the limiting member 81 relatively stably located in the limiting groove 21, preventing the two from being easily separated by external force, and ensuring that the door leaf 7 can be stably in the open state.

[0034] During the entire locking process, when the rotation state of the connecting bracket 3 changes, for example, when the limit member 81 contacts the door stopper seat 2 or the limit groove 21, the damping mechanism 6 can play a buffering role, enabling the door stopper to complete the locking action smoothly without generating loud noise.

[0035] As an embodiment, the first guide surface 411 and the second guide surface 412 are inclined surfaces or curved surfaces, and an arc-shaped transition surface is provided between the two to facilitate the guide column 5 to slide smoothly thereon without generating obvious noise.

[0036] In this embodiment, the groove wall of the limiting groove 21 close to the fixing frame 1 is lower than the groove wall on the opposite side. When the fixing frame 1 moves toward the door stopper seat 2 along with the door leaf 7, the limiting member 81 first passes over the groove wall on the lower side of the limiting groove 21, and then abuts against the groove wall on the higher side of the limiting groove 21. As the door leaf 7 continues to move, the connecting bracket 3 will rotate counterclockwise, and then the limiting member 81 will be stuck in the limiting groove 21, completing the locking action of the door stopper. For details, see Figure 6 Of course, in other embodiments, the groove walls on both sides of the limit groove 21 can also be set to the same height. In this case, the notch of the limit groove 21 faces the limit member 81, and the locking action of the door stopper can also be achieved. In addition, the installation positions of the fixing frame 1 and the door stopper seat 2 can also be changed according to actual needs. For example, the fixing frame 1 is installed on the wall or the ground, and the door stopper seat 2 is installed on the door leaf 7. As long as the two are arranged relative to each other, the above-mentioned locking action can also be achieved.

[0037] As an embodiment, the buffer noise reduction door stopper further includes a shaft sleeve 51, which is sleeved on the guide column 5 and plays the role of buffering the protrusion 41 and the guide column 5. For example, when the guide column 5 moves along the two guide surfaces of the protrusion 41, the shaft sleeve 51 will rotate, changing the sliding friction into rolling friction, which can also reduce noise to a certain extent.

[0038] As an embodiment, an arc-shaped slide groove 13 is provided on the groove wall of the installation groove 11, and both ends of the guide column 5 are slidably arranged in the slide groove 13. Therefore, when the connecting bracket 3 rotates in the installation groove 11, the guide column 5 also slides in the slide groove 13, which can improve the stability of the connecting bracket 3 in the installation groove 11 on the one hand, and control the rotation range of the connecting bracket 3 by changing the length of the slide groove 13 on the other hand.

[0039] As an embodiment, the limiting member 81 is a roller rotatably arranged at the lower end of the connecting bracket 3. During use, it can rotate itself when it contacts the door stop seat 2 or the limiting groove 21, changing the sliding friction into rolling friction, which can also reduce noise to a certain extent.

[0040] In daily use, if the roller is accidentally touched, the connecting bracket 3 rotates counterclockwise, and then the first spring 9 can indirectly drive the connecting bracket 3 to continue to rotate, so that the roller end changes from facing the left side in the figure to facing the bottom side, that is, Figure 6 The position shown. In this case, if the door leaf 7 gradually approaches the door stopper 2, the roller end of the connecting bracket 3 will abut against the side of the door stopper 2, and cannot enter the limiting groove 21, and cannot complete the locking action. Therefore, in this embodiment, a roller seat 82 is also provided at the lower end of the connecting bracket 3. The roller seat 82 is a U-shaped seat body that is slidably arranged in the middle of the two plates of the connecting bracket 3, and can slide up and down along the lower half of the connecting bracket 3. At the same time, the roller is hinged in the middle of the roller seat 82 and can slide with the roller seat 82; a second spring is also provided on the connecting bracket 3 to push the roller seat 82 to reset. Specifically, the second spring applies an outward force to the roller seat 82, so that the roller seat 82 can be at the end of the connecting bracket 3 when not subjected to external force; in addition, a guide portion 22 is also provided on the side of the door stopper 2 close to the fixing frame 1, and its width is not greater than the width of the roller, and the side is an inclined guide surface, so that it can enter the middle of the two plates of the connecting bracket 3.

[0041] Under this structure, if the lower end of the connecting bracket 3 is facing downward before being inserted into the limiting groove 21, when it gradually approaches the door stopper seat 2, the roller will first abut against the guide portion 22, and slide upward with the roller seat 82 under the action of the guide surface until it passes the guide portion 22 and is then pushed into the limiting groove 21 by the second spring. The locking action can also be completed, overcoming the above-mentioned problem of accidentally touching the roller, so that the buffering and noise reduction door stopper can operate stably for a long time.

[0042] As an embodiment, both sides of the roller seat 82 are slidably connected to the connection bracket 3, for example, the two adopt a connection structure of a slider and a slide groove 13, and a stop block 83 is provided in the middle of the connection bracket 3. One end of the roller seat 82 is fixedly connected to a guide rod 84 that penetrates the stop block 83, and the second spring is sleeved on the guide rod 84, and the two ends are respectively abutted on the stop block 83 and the roller seat 82. Therefore, when the roller seat 82 is pushed upward by an external force, the second spring can exert a downward force on it, and after the external force is released, the roller seat 82 can be pushed to move to the lower end of the connection bracket 3.

[0043] When the buffer noise reduction door stopper is in the locked state, Figure 6 Pushing the door leaf 7 from the middle right side will first cause the connecting bracket 3 to rotate clockwise and drive the roller to move upward. After it is higher than the lower side of the limiting groove 21, it can disengage from the limiting groove 21 with the door leaf 7, releasing the locking state of the door stopper. At the same time, the roller end of the connecting bracket 3 will be on the outside of the mounting groove 11, thus completing the resetting of the roller.

[0044] As an embodiment, an outer cover is further provided on the outer periphery of the fixing frame 1, and the outer cover is clamped on the fixing frame 1, and a through hole is provided at the lower end thereof for the lower end of the connecting bracket 3 to extend outward. In other words, after the fixing frame 1 is installed on the door leaf 7, only the lower end of the outer cover is connected to the outside, which can prevent dust, water stains and other debris from entering the inner part and affecting the service life of the internal structure; in addition, by providing outer covers of different shapes and styles, the door stopper can also have a variety of appearances, which is convenient for adapting to the requirements of different door leaves 7 for the appearance of the door stopper.

[0045] As an embodiment, a buffer made of a flexible material, such as rubber, silicone, etc., is also provided on the groove wall of the limiting groove 21 to further reduce the noise generated by the contact between the roller and the limiting groove, and reduce the shaking amplitude of the door leaf 7.

[0046] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A buffer noise reduction door stopper, characterized in that: include: A fixing frame, with a mounting groove formed in the middle; The door stopper seat has a limiting groove formed in the middle; A connecting bracket, one end of which is hinged in the mounting groove, and the other end of which extends outward and is provided with a stopper, and a guide column is provided on the connecting bracket; A guide block is rotatably arranged in the installation groove, and a protrusion is formed at one end thereof to abut against the guide column, and two sides of the protrusion are a first guide surface and a second guide surface; a first spring, disposed in the mounting groove, applying a force to the guide block to cause the protrusion to abut against the guide post; A damping mechanism, one end of which is hinged to the connecting bracket and the other end of which is hinged to the groove wall of the installation groove; When the first guide surface and the second guide surface are respectively against the guide column, the guide block forms a torque in opposite directions on the connecting bracket. When the fixing bracket and the door stopper are close to each other, the limiting member enters the limiting groove, the connecting bracket rotates, and the guide column moves from against the first guide surface to against the second guide surface.

2. The buffer noise reduction door stopper according to claim 1, characterized in that: The groove wall of the limiting groove on one side close to the fixing frame is lower than the groove wall on the opposite side.

3. The buffer noise reduction door stopper according to claim 1, characterized in that: The limiting member is a roller rotatably arranged at the other end of the connecting bracket.

4. The buffer noise reduction door stopper according to claim 3, characterized in that: Also includes: A roller seat, slidably arranged at the other end of the connecting bracket, wherein the roller is hinged in the roller seat; A second spring, provided on the connecting bracket, exerts an outward force on the roller seat; The guide portion is arranged on one side of the door stopper seat close to the fixing frame, has a width no greater than the width of the roller, and has a side surface which is an inclined guide surface.

5. The buffer noise reduction door stopper according to claim 4, characterized in that: Also includes: A stop block, arranged in the middle of the connecting bracket; A guide rod, one end of which is fixed on the roller seat and the other end of which is inserted into the stop block; The second spring is sleeved on the guide rod, and two ends of the second spring are respectively abutted against the stop block and the roller seat.

6. The buffer noise reduction door stopper according to claim 1, characterized in that: A buffer is provided on the surface of the limiting member and / or the limiting groove.

7. The buffer noise reduction door stopper according to claim 1, characterized in that: Also includes: A shaft sleeve is sleeved on the guide column.

8. The buffer noise reduction door stopper according to claim 1, characterized in that: The groove wall of the installation groove is provided with an arc-shaped sliding groove, and the two ends of the guide column are slidably arranged in the sliding groove.

9. The buffer noise reduction door stopper according to any one of claims 1 to 8, characterized in that: Also includes: The outer cover is arranged on the outer periphery of the fixing frame, and one end of the outer cover is provided with a through hole for allowing the connecting bracket to extend outward.

10. The buffer noise reduction door stopper according to any one of claims 1 to 8, characterized in that: The fixing frame is installed on the door leaf, and the door stopper is installed on the ground or the wall.

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