Locking device with buffering and damping effects

Abstract

The utility model discloses a locking device with buffering and damping effects, which comprises a fixed seat, a movable seat and a locking mechanism, the fixed seat is in sliding fit with the movable seat to enable the movable seat to linearly move back and forth relative to the fixed seat, the movable seat is elastically locked on one side of the fixed seat through the locking mechanism, and the locking device further comprises a damper. The damper is arranged on the fixed seat or the movable seat, one end of the damper acts on the fixed seat, and the other end of the damper acts on the movable seat; the damper is arranged on the fixed seat or the movable seat, one end of the damper acts on the fixed seat, the other end of the damper acts on the movable seat, the damper is triggered when the movable seat is in a door closing state, the damper has a buffering and damping effect on the movable seat, sound generated by collision of the damper and the movable seat is reduced, and damage to parts due to rigid collision is avoided. The service life of the product is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of door and window accessories, in particular to a locking device with buffering and damping effects. Background Art

[0002] At present, the PD door and window system has been increasingly favored by users. Its door and window structure, which can be pushed and pulled to half-open or rotated to fully open, has made the PD door and window system the first choice for more decorators. The PD door and window system needs to be equipped with a special locking device. After completing the push-pull closing action, the door or window sash is locked by the locking device, and then the rotation opening action is performed to prevent the push-pull pulley from slipping out of the track and causing an accident.

[0003] For example, the PD door closer disclosed in the Chinese patent document with the publication number CN217581763U on October 14, 2022, fixes the fixed part 2 on the door frame and fixes the sliding part 3 on the door leaf. The unique structure of the PD door enables it to have two opening and closing states, one is a flat open state and the other is a push-pull state. In the flat open state, the door leaf is separated from the door frame, that is, the fixed part 2 is separated from the sliding part 3, the baffle 10 is not subjected to the force from the pushing block 14, and is extended under the elastic action of the first spring 6, The track for the rollers is blocked, so that multiple door leaves cannot pass through the track. When the door leaves are closed and opened, the door leaves are rotated to gradually fit the surface of the door frame. As the door leaves rotate, the locking block 4 gradually passes between the two pulleys 12. Since one end of the locking block 4 is tapered, that is, small at the front and large at the back, the distance between the two pulleys 12 is gradually increased, squeezing the second spring 13 to deform it. When the position of the locking block 4 is slightly offset, the problem that it cannot align with the distance between the two pulleys 12 can be overcome.

[0004] Another example is the single-point positioning closer disclosed on August 4, 2023 with the Chinese patent document publication number CN219471867U. The fixed part 1 and the sliding part 2 are provided with a card slot 7 and a card platform 8 in sequence. The outer bottom of the card platform 8 contacts the inner bottom of the card slot 7. At the same time, a positioning member 9 is provided in the card platform 8. The positioning member 9 is provided with a positioning spring 10 abutting against the bottom of the card platform 8. The top of the fixed part 1 is provided with an arc-shaped positioning slot 6. The right side of the positioning slot 6 is provided with a slope that rises from left to right. When the positioning member 9 is moved from the right When moving to the left, it first abuts against the top position of the rightmost side of the slope. In the process of gradually moving to the left, the positioning member 9 is gradually pressed down by the slope, and the positioning spring 10 is also compressed until it moves to the leftmost side of the slope, and then moves to the bottom of the positioning groove 6. At this time, the positioning spring 10 restores its elastic deformation and squeezes the positioning member 9 to move upward until it enters the positioning groove 6. At this time, the fixing part 1 and the sliding part 2 will not move without external force, which ensures that the door leaf will not automatically separate from the door frame.

[0005] Both achieve pushing and locking through a fixed part installed on the door frame and a movable part component installed on the door body, and through a built-in locking mechanism, which can solve the technical problem of the sliding pulley slipping out of the track. However, there is currently a problem with the locking device, that is, the buffering effect is poor, resulting in the user being extremely cautious during the process of closing the door in order to reduce the sound generated by the collision, deliberately using the smallest force to close the door to achieve the quietest effect. Summary of the Utility Model

[0006] The purpose of the present utility model is to provide a locking device with a buffer damping effect to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above purpose, the present utility model provides the following technical solution: A locking device with a buffer damping effect, including a fixed seat, a movable seat and a locking mechanism. The fixed seat is slidably matched with the movable seat to enable the movable seat to move linearly back and forth relative to the fixed seat. The movable seat is elastically locked to one side of the fixed seat through the locking mechanism. Among them, a damper is further included. The damper is arranged on the fixed seat or the movable seat, and one end of the damper acts on the fixed seat and the other end acts on the movable seat.

[0008] Preferably, the damper is arranged on the fixed seat, and an acting part is arranged on the movable seat. When in the closed door state, the damper acts on the acting part to provide buffering for the movable seat.

[0009] Preferably, a second sliding member is movably arranged on the fixed seat in the front-back direction. The damper is arranged inside the second sliding member, and one end of the damper abuts against the second sliding member and the other end abuts against the fixed seat. The acting part abuts against the second sliding member when in the closed door state.

[0010] Preferably, the locking mechanism is arranged on the fixed seat. In the closed door state, the acting part triggers the locking mechanism so that the locking mechanism elastically acts on the acting part.

[0011] Preferably, the locking mechanism includes a first sliding member, a sliding bearing and a first spring. The first sliding member is movably arranged on the fixed seat in the vertical direction. The sliding bearing is rotatably arranged on the top of the first sliding member. The first spring is arranged at the bottom of the first sliding member and acts on the first sliding member.

[0012] Preferably, a locking groove is arranged at the bottom of the acting part. The locking groove is arc-shaped and is adapted to the sliding bearing so that the sliding bearing is arranged in the locking groove when the movable seat is in the locked state.

[0013] Preferably, the fixing base is provided with a track for the acting part to move, the second sliding member is provided with an actuating part facing the track, and at least part of the sliding bearing is arranged on the track so that after the acting part enters the track, it contacts the actuating part and the sliding bearing.

[0014] Preferably, a second spring is further arranged in the second sliding member. One end of the second spring abuts against the second sliding member, and the other end abuts against the fixing base, so that the second spring provides an elastic acting force for the second sliding member.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows: By arranging a damper on the fixing base or the movable base, one end of the damper acts on the fixing base, and the other end acts on the movable base. When the movable base is in the closed state, the damper is triggered. The damper buffers the damping effect for the movable base, reduces the sound generated by the collision between the two, and also avoids damage to parts caused by rigid collision, thus prolonging the service life of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic perspective view of the present utility model in the closed state.

[0017] Figure 2 It is a schematic top view of the present utility model in the open state.

[0018] Figure 3 is Figure 2 the schematic cross-sectional view at A - A in

[0019] Figure 4 is Figure 2 the schematic cross-sectional view at B - B in

[0020] Figure 5 It is a schematic perspective view of the present utility model in the open state.

[0021] Figure 6 It is a schematic perspective view of another angle of the present utility model in the open state.

[0022] In the figure: fixing base 1, track 11, movable base 2, acting part 21, locking groove 22, locking mechanism 3, first sliding member 31, sliding bearing 32, first spring 33, damper 4, second sliding member 5, actuating part 51, second spring 6. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] Embodiments of the present utility model will be described in more detail below with reference to the accompanying drawings. Although some embodiments of the present utility model are shown in the drawings, it should be understood that the present utility model can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. On the contrary, these embodiments are provided to more thoroughly and completely understand the present utility model. It should be understood that the drawings and embodiments of the present utility model are only for exemplary purposes and are not used to limit the protection scope of the present utility model.

[0024] It should be understood that the various steps recorded in the method embodiments of the present utility model can be executed in different orders and / or executed in parallel. In addition, the method embodiments may include additional steps and / or omit the steps shown. The scope of the present utility model is not limited in this regard.

[0025] The term "including" and its variants used herein are open-ended, that is, "including but not limited to". The term "connected" can be directly connected or indirectly connected through an intermediate component (element). The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments". The relevant definitions of other terms will be given in the following description.

[0026] It should be noted that the concepts such as "first", "second", etc. mentioned in the present utility model are only used to distinguish devices, modules or units, and are not used to limit that these devices, modules or units must be different devices, modules or units, nor are they used to limit the order or interdependence relationship of the functions executed by these devices, modules or units.

[0027] As Figures 1 to 6 shown, a locking device with a buffering and damping effect includes a fixed seat 1, a movable seat 2 and a locking mechanism 3. The fixed seat 1 is slidably matched with the movable seat 2 so that the movable seat 2 moves linearly back and forth relative to the fixed seat 1. The movable seat 2 is elastically locked to one side of the fixed seat 1 through the locking mechanism 3. This technical solution is well known to those skilled in the art, so no detailed explanation will be given.

[0028] The locking device further includes a damper 4. The damper 4 is disposed on the fixed seat 1 or the movable seat 2, and one end of the damper 4 acts on the fixed seat 1 and the other end acts on the movable seat 2. Specifically, by providing a damper 4 on the fixed seat 1 or the movable seat 2, one end of the damper 4 acts on the fixed seat 1 and the other end acts on the movable seat 2, so that the movable seat 2 triggers the buffering and damping effect of the damper 4 when in the closed state, reducing the sound generated by the collision between the two, and also avoiding damage to parts caused by rigid collision, and prolonging the service life of the product.

[0029] Specifically, the damper 4 is arranged on the fixed seat 1, and an acting part 21 is arranged on the movable seat 2. When the door is in the closed state, the damper 4 acts on the acting part 21 to provide buffering for the movable seat 2; in this embodiment, the acting part 21 is preferably integrally arranged on the side of the movable seat 2.

[0030] Specifically, a second sliding member 5 is movably arranged on the fixed seat 1 in the front-back direction. The damper 4 is arranged in the second sliding member 5, one end of the damper 4 abuts against the second sliding member 5, and the other end abuts against the fixed seat 1. The acting part 21 abuts against the second sliding member 5 when the door is in the closed state; when the door is in the closed state, the movable seat 2 moves towards the fixed seat 1. At this time, after the acting part 21 abuts against the second sliding member 5, buffering is provided by the damper 4 arranged in the second sliding member 5. Exactly speaking, the stability of the damper 4 during operation is ensured by the second sliding member 5.

[0031] The locking mechanism 3 is arranged on the fixed seat 1. In the closed state of the door, the acting part 21 triggers the locking mechanism 3 to make the locking mechanism 3 elastically act on the acting part 21; in order to enable the door body to perform a rotary opening action after completing the push-pull closing action, the door body is locked by the locking device to prevent the door body from sliding out of the track 11 and causing an accident.

[0032] The locking mechanism 3 in this embodiment includes a first sliding member 31, a sliding bearing 32 and a first spring 33. The first sliding member 31 is movably arranged on the fixed seat 1 in the vertical direction. The sliding bearing 32 is rotatably arranged on the top of the first sliding member 31. The first spring 33 is arranged at the bottom of the first sliding member 31 and acts on the first sliding member 31. A locking groove 22 is arranged at the bottom of the acting part 21. The locking groove 22 is arc-shaped and is adapted to the sliding bearing 32 so that the sliding bearing 32 is arranged in the locking groove 22 when the movable seat 2 is in the locked state; it should be understood that after the acting part 21 contacts the first sliding member 31, it pushes the first sliding member 31 to move linearly downward. When the locking groove 22 of the acting part 21 smoothly slides onto the sliding bearing 32, the sliding bearing 32 is pushed by the resilience of the first spring 33 to cooperate with the locking groove 22, thereby achieving the closing and locking effect; in order to ensure that the first sliding member 31 enters the locking groove 22 of the acting part 21 more smoothly, the two sides of the locking groove 22 are provided with arc chamfers in this embodiment.

[0033] In addition, it should be understood that a limiting structure (not shown in the figure) for preventing the first sliding member 31 and the second sliding member 5 from coming out is arranged on the fixed seat 1; the limiting structure is a common structure in the art and is well known to those skilled in the art, so no detailed description is given.

[0034] The fixed seat 1 is provided with a track 11 for the movable part 21 to move. One side of the second sliding member 5 is provided with an actuating part 51 facing the track 11. The sliding bearing 32 is at least partially arranged on the track 11 so that after the acting part 21 enters the track 11, it contacts the actuating part 51 and the sliding bearing 32. It should be understood that the acting part 21 is the triggering structure of the movable seat 2. When the movable seat 2 moves to one side of the fixed seat 1, the acting part 21 preferably triggers the sliding bearing 32 on the track 11. After the sliding bearing 32 cooperates with the locking groove 22 under the resilience of the first spring 33, the acting part 21 then contacts the actuating part 51 and triggers the damper 4 to ensure the smooth completion of the operation of the locking mechanism 3.

[0035] Specifically, a second spring 6 is further arranged in the second sliding member 5. One end of the second spring 6 abuts against the second sliding member 5, and the other end abuts against the fixed seat 1 so that the second spring 6 provides an elastic acting force for the second sliding member 5. Exactly speaking, the second spring 6 and the damper 4 are arranged in the second sliding member 5 in the same direction. When closing the door, the acting part 21 triggers the damper 4 and at the same time compresses the elastic energy storage of the second spring 6. After the door body is pushed and pulled to open, the acting part 21 leaves the sliding bearing 32 from the locking area. After losing the elastic locking between the locking groove 22 and the sliding bearing 32, the second spring 6 releases the stored energy to make the second sliding member 5 move quickly. The second sliding member 5 pushes the acting part 21 / the movable seat 2 to move through the actuating part 51 to realize the automatic door opening function.

[0036] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A locking device with a buffer damping effect, comprising a fixed seat (1), a movable seat (2) and a locking mechanism (3). The fixed seat (1) is slidably engaged with the movable seat (2) to enable the movable seat (2) to move linearly back and forth relative to the fixed seat (1). The movable seat (2) is elastically locked to one side of the fixed seat (1) through the locking mechanism (3), and is characterized in that: It further includes a damper (4), the damper (4) is arranged on the fixed seat (1) or the movable seat (2), and one end of the damper (4) acts on the fixed seat (1), and one end acts on the movable seat (2).

2. A locking device with a buffer damping effect according to claim 1, characterized in that: The damper (4) is arranged on the fixed seat (1), and an acting part (21) is arranged on the movable seat (2). When in the closed door state, the damper (4) acts on the acting part (21) to provide buffering for the movable seat (2).

3. A locking device with a buffer damping effect according to claim 2, characterized in that: A second sliding member (5) is movably arranged on the fixed seat (1) in the front-rear direction. The damper (4) is arranged in the second sliding member (5), one end of the damper (4) abuts against the second sliding member (5), and the other end abuts against the fixed seat (1). The acting part (21) abuts against the second sliding member (5) when in the closed door state.

4. A locking device with a buffer damping effect according to claim 3, characterized in that: The locking mechanism (3) is arranged on the fixed seat (1). In the closed door state, the acting part (21) triggers the locking mechanism (3) so that the locking mechanism (3) elastically acts on the acting part (21).

5. A locking device with a buffer damping effect according to claim 4, characterized in that: The locking mechanism (3) includes a first sliding member (31), a sliding bearing (32) and a first spring (33). The first sliding member (31) is movably arranged on the fixed seat (1) in the vertical direction. The sliding bearing (32) is rotatably arranged on the top of the first sliding member (31). The first spring (33) is arranged at the bottom of the first sliding member (31) and acts on the first sliding member (31).

6. The locking device with a buffer damping effect according to claim 5, wherein: A locking groove (22) is arranged at the bottom of the acting part (21). The locking groove (22) is arc-shaped and is adapted to the sliding bearing (32) so that the sliding bearing (32) is arranged in the locking groove (22) when the movable seat (2) is in the locked state.

7. A locking device with a buffer damping effect according to claim 6, characterized in that: A track (11) for the acting part (21) to move is arranged on the fixed seat (1). An actuating part (51) is arranged on one side of the second sliding member (5) facing the track (11). At least part of the sliding bearing (32) is arranged on the track (11) so that after the acting part (21) enters the track (11), it contacts the actuating part (51) and the sliding bearing (32).

8. A locking device with a buffer damping effect according to claim 3, characterized in that: A second spring (6) is further arranged in the second sliding member (5). One end of the second spring (6) abuts against the second sliding member (5), and the other end abuts against the fixed seat (1) so that the second spring (6) provides an elastic acting force for the second sliding member (5).

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