Composite locking type PD door closer

Abstract

The utility model belongs to a composite locking type PD door closer which comprises a fixed part and a sliding part which are buckled in a sliding mode, the fixed part and the sliding part are arranged on a door frame and a door leaf respectively, magnetic attraction pieces which can be attached to each other in a magnetic attraction mode are installed on the fixed part and the sliding part respectively, and the composite locking type PD door closer further comprises a clamping assembly which comprises a clamping protruding block and an elastic piece, one end of the elastic piece is connected with the sliding part, the other end of the elastic piece abuts against the clamping protruding block, and the clamping protruding block is connected with the sliding part in a sliding mode. The clamping groove is formed in the fixing part, the clamping protruding block is connected with the clamping groove in a clamped mode, and the clamping protruding block is located between the elastic piece and the clamping groove when the clamping protruding block is connected with the clamping groove in a clamped mode. In the buckling state of the fixed part and the sliding part, the fixed part and the sliding part can also be clamped and fixed through the clamping convex block and the clamping groove while the fixed part and the sliding part are magnetically attracted and fixed through the magnetic attraction piece, the fixing strength of the fixed part and the sliding part is enhanced, the stability is improved, and shaking is avoided.

Description

Technical Field

[0001] This utility model relates to the field of door closer technology, and more specifically, to a composite locking type PD door closer. Background Technology

[0002] PD doors, also known as PT doors, are doors that can be both pushed and pulled or hinged. Their biggest advantage is that they significantly reduce the space occupied by the door. The sliding track of a PT door consists of two parts: a fixed track fixed to the upper part of the door / window frame, and a movable track fixed to the top of the door / window frame. When a PT door needs to be fully opened, the sliding door / window needs to slide along the fixed track to the movable track, overlap with the fixed track, and then rotate outwards to open. Therefore, when hinged, a closing device is needed to lock the sliding rollers to prevent them from slipping out of the track and causing an accident.

[0003] In the patent application with application number 202421213601.6 filed by the applicant, a magnetic PD door closure is disclosed, including a fixed part and a sliding part that slide and fasten together. The fixed part and the sliding part are respectively disposed on the door frame and the door leaf. Magnetic elements are correspondingly installed on the inner sides of both the fixed part and the sliding part, and the magnetic elements on the inner sides of the fixed part and the sliding part can magnetically attract and adhere to each other. However, in the process of realizing the present invention, the inventors discovered the following problem with the prior art: In the above-mentioned patent, the fixed part and the sliding part are only magnetically fixed by magnetic elements, and the fixing force is not strong, which may cause shaking. Utility Model Content

[0004] To address the issue of insufficient fixing force between the fixed and sliding parts of existing PD door closers, which may cause wobbling, a composite locking type PD door closer is provided.

[0005] This application provides a composite locking type PD door closer, including a fixed part and a sliding part that slide and interlock with each other. The fixed part and the sliding part are respectively disposed on the door frame and the door leaf. Magnetic attractors that can magnetically attract and adhere to each other are respectively installed on the fixed part and the sliding part. The device also includes:

[0006] A snap-fit ​​assembly includes a snap-fit ​​protrusion and an elastic element, one end of the elastic element being connected to the sliding portion, and the other end of the elastic element abutting against the snap-fit ​​protrusion, wherein the snap-fit ​​protrusion is slidably connected to the sliding portion;

[0007] A snap-fit ​​groove is provided on the fixing part, and the snap-fit ​​protrusion snaps into the snap-fit ​​groove. In the snap-fit ​​state, the snap-fit ​​protrusion is located between the elastic member and the snap-fit ​​groove.

[0008] Furthermore, a snap-fit ​​sliding member is installed on the sliding part, and the snap-fit ​​protrusion is slidably connected to the snap-fit ​​sliding member.

[0009] Furthermore, the snap-fit ​​slider has a slide rail that extends along the height direction of the snap-fit ​​slider, and the snap-fit ​​protrusion has a groove that runs vertically through the snap-fit ​​protrusion, and the snap-fit ​​protrusion is slidably connected to the slide rail through the groove.

[0010] Furthermore, there are two snap-fit ​​components, and the fixing part has a guide protrusion. The two opposite sides of the guide protrusion have snap-fit ​​grooves, and the snap-fit ​​protrusions of the two snap-fit ​​components snap into the two snap-fit ​​grooves respectively.

[0011] Furthermore, the snap-fit ​​protrusion has a limiting member, and the sliding part has a limiting groove, and the limiting member moves within the limiting groove.

[0012] Furthermore, the sliding part has a buckle on its side, and the corresponding position of the fixing part has a slot, and the buckle engages with the slot.

[0013] Furthermore, the sliding part has a guide groove, the guide protrusion is sleeved with the guide groove, and the two magnetic suction members are respectively installed on the guide protrusion and in the guide groove.

[0014] Furthermore, a pulley assembly is provided on the side of the guide groove, and the side of the guide protrusion slides and fits against the pulley assembly.

[0015] Furthermore, in one embodiment, one end of the guide groove has an opening, and one end of the guide protrusion is provided with a vertical baffle, the surface area of ​​which is greater than the vertical cross-sectional area of ​​the opening at one end of the guide groove.

[0016] Furthermore, both the fixed part and the sliding part are provided with slide rail grooves. The sliding part has a top block on the side of the slide rail groove. The fixed part is provided with a telescopic baffle that is movably connected to the fixed part. When the fixed part and the sliding part are separated, the telescopic baffle covers the slide rail groove of the fixed part. When the fixed part and the sliding part are engaged, the side of the top block fits against the side of the telescopic baffle, and the slide rail groove of the fixed part is connected to the slide rail groove of the sliding part.

[0017] The advantages of this utility model are:

[0018] In this embodiment, magnetic suction components are installed on the fixed part and the sliding part of the PD door closure, respectively. A snap-fit ​​assembly is also provided on the sliding part, and a snap-fit ​​groove is provided on the fixed part to engage with the snap-fit ​​protrusion of the snap-fit ​​assembly. When the fixed part and the sliding part are engaged, they are magnetically attracted and fixed by the magnetic suction components, and further secured by the snap-fit ​​protrusion and the snap-fit ​​groove. This enhances the fixing strength between the fixed part and the sliding part, improves stability, and prevents shaking.

[0019] 2. Because the elastic element abuts against the snap-fit ​​protrusion, the snap-fit ​​protrusion can smoothly enter the snap-fit ​​groove and engage with it when the fixed part and the sliding part are in the snap-fit ​​state, which improves the snap-fit ​​accuracy between the snap-fit ​​protrusion and the snap-fit ​​groove. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of a composite locking type PD door closure;

[0022] Figure 2 Exploded view of a composite locking type PD door closure;

[0023] Figure 3 This is a structural schematic diagram of the fixing part;

[0024] Figure 4 This is another structural schematic diagram of the fixing part;

[0025] Figure 5 This is a schematic diagram of the sliding part.

[0026] Figure 6 This is a cross-sectional view of a composite locking type PD door closer;

[0027] Figure 7 This is a schematic diagram of the structure of the snap-fit ​​sliding member and the snap-fit ​​protrusion.

[0028] Attached image labels:

[0029] 1. Fixed part; 2. Sliding part; 3. Magnetic suction part; 4. Snap-fit ​​assembly; 71. Snap-fit ​​groove; 41. Snap-fit ​​protrusion; 42. Elastic part; 5. Mounting hole; 6. Snap-fit ​​sliding part; 61. Slide rail; 411. Slide groove; 7. Guide protrusion; 412. Limiting part; 21. Limiting groove; 9. Slide rail through groove; 22. Top block; 10. Telescopic baffle; 101. Movable groove; 11. Limiting post; 12. Thrust spring; 13. Spring groove; 102. Vertical lever; 14. Positioning groove; 15. Buckle; 16. Snap groove; 17. Guide groove; 18. Pulley assembly; 19. Vertical baffle. Detailed Implementation

[0030] To address the issue of insufficient fixing force between the fixed and sliding parts of existing PD door closers, which may cause wobbling, a composite locking type PD door closer is provided.

[0031] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0032] It should be noted that the terms such as "inner", "middle" and "one" used in this specification are only for clarity of description and are not intended to limit the scope of implementation of this utility model. Any changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered as part of the scope of implementation of this utility model, as stated above.

[0033] In the description of this utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, it should be noted that unless otherwise explicitly specified and limited, the terms "installed," "connected," and "joined" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood through specific circumstances.

[0034] like Figures 1 to 7 As shown, this embodiment provides a composite locking type PD door closer, including a fixed part 1 and a sliding part 2 that slide and engage with each other. The fixed part 1 and the sliding part 2 are respectively disposed on the door frame and the door leaf. Magnetic suction elements 3 that can magnetically attract and adhere to each other are respectively installed on the fixed part 1 and the sliding part 2. The composite locking type PD door closer also includes a snap-fit ​​assembly 4 and a snap-fit ​​groove 71. The snap-fit ​​assembly 4 includes a snap-fit ​​protrusion 41 and an elastic element 42. One end of the elastic element 42 is connected to the sliding part 2, and the other end of the elastic element 42 abuts against the snap-fit ​​protrusion 41. The snap-fit ​​protrusion 41 is slidably connected to the sliding part 2. The snap-fit ​​groove 71 is disposed on the fixed part 1, and the snap-fit ​​protrusion 41 engages with the snap-fit ​​groove 71. In the snap-fit ​​state, the snap-fit ​​protrusion 41 is located between the elastic element 42 and the snap-fit ​​groove 71.

[0035] In this embodiment, magnetic suction components 3 are respectively installed on the fixed part 1 and the sliding part 2 of the PD door closure. A snap-fit ​​component 4 is also provided on the sliding part 2, and a snap-fit ​​groove 71 is provided on the fixed part 1 to engage with the snap-fit ​​protrusion 41 of the snap-fit ​​component 4. When the fixed part 1 and the sliding part 2 are engaged, while the fixed part 1 and the sliding part 2 are magnetically attracted and fixed by the magnetic suction components 3, they can also be snapped and fixed by the snap-fit ​​protrusion 41 and the snap-fit ​​groove 71, enhancing the fixing strength between the fixed part 1 and the sliding part 2, improving stability, and preventing shaking.

[0036] In the composite locking type PD door closer, the fixed part 1 can be assembled to the door frame by bolts, etc., and the sliding part 2 can be assembled to the door leaf by bolts, etc. The magnetic attractant 3 installed on the fixed part 1 and the sliding part 2 can be a magnet. In one embodiment, in order to realize the installation of the magnetic attractant 3 on the fixed part 1 and the sliding part 2, mounting grooves can be directly opened on the fixed part 1 and the sliding part 2, so that the magnetic attractant 3 can be installed by cooperating with the mounting groove. Alternatively, the magnetic attractant 3 can be installed and fixed on the fixed part 1 and the sliding part 2 by bolts or other fixing methods. The installation method of the magnetic attractant 3 on the fixed part 1 and the sliding part 2 is not specifically limited, as long as it can achieve the installation and fixation. Preferably, the surface of the magnetic attractant 3 is smooth and has a quadrilateral structure, so that the two magnetic attractants 3 have a higher degree of adhesion when they are attracted.

[0037] In one embodiment, the elastic element 42 of the snap-fit ​​assembly 4 can be a spring. In order to achieve the connection between the elastic element 42 and the sliding part 2 and the snap-fit ​​protrusion 41, mounting holes 5 can be provided on the sliding part 2 and the snap-fit ​​protrusion 41 respectively. One end of the elastic element 42 is placed in the mounting hole 5 on the sliding part 2, and the other end of the elastic element 42 is placed in the mounting hole 5 on the snap-fit ​​protrusion 41.

[0038] To achieve a sliding connection between the snap-fit ​​protrusion 41 and the sliding part 2, a snap-fit ​​sliding member 6 is also installed on the sliding part 2, and the snap-fit ​​protrusion 41 and the snap-fit ​​sliding member 6 are slidably connected. The snap-fit ​​sliding member 6 can be detachably connected to the sliding part 2 by bolts, thereby facilitating the installation and removal of the snap-fit ​​sliding member 6.

[0039] To achieve a sliding connection between the locking protrusion 41 and the locking slider 6, a slide rail 61 is provided on the locking slider 6, extending along the height direction of the locking slider 6. The locking protrusion 41 has a vertically penetrating groove 411, through which the locking protrusion 41 is slidably connected to the slide rail 61. Because the elastic member 42 abuts against the locking protrusion 41, under the elastic force of the elastic member 42, the locking protrusion 41 can move up and down along the slide rail 61, thereby adjusting the position of the locking protrusion 41. Furthermore, because the locking protrusion 41 is slidably connected to the locking slider 6, the movement of the locking protrusion 41 can be limited, preventing the locking protrusion 41 from shifting position during movement.

[0040] There may be two snap-fit ​​components 4. The fixing part 1 has guide protrusions 7, and the opposite sides of the guide protrusions 7 each have snap-fit ​​grooves 71. The snap-fit ​​protrusions 41 of the two snap-fit ​​components 4 respectively snap into the two snap-fit ​​grooves 71. Preferably, the snap-fit ​​grooves 71 may have an arc-shaped structure. In one embodiment, the two snap-fit ​​components 4 may be symmetrically arranged on the fixing part 1.

[0041] In one embodiment, in order to further limit the position of the snap-fit ​​protrusion 41 and prevent the snap-fit ​​protrusion 41 from disengaging from the elastic member 42, a limiting member 412 is provided on the snap-fit ​​protrusion 41, and a limiting groove 21 is provided on the sliding part 2. The limiting member 412 moves within the limiting groove 21. The movement of the snap-fit ​​protrusion 41 is further limited by the setting of the limiting member 412 and the limiting groove 21.

[0042] Both the fixed part 1 and the sliding part 2 are provided with slide rail grooves 9. A top block 22 is provided on the side of the slide rail groove 9 on the sliding part 2. The fixed part 1 is provided with a telescopic baffle 10 that is movably connected to the fixed part 1. When the fixed part 1 and the sliding part 2 are separated, the telescopic baffle 10 covers the slide rail groove 9 of the fixed part 1. When the fixed part 1 and the sliding part 2 are engaged, the side of the top block 22 fits against the side of the telescopic baffle 10, and the slide rail groove 9 of the fixed part 1 communicates with the slide rail groove 9 of the sliding part 2.

[0043] To achieve a movable connection between the telescopic baffle 10 and the fixed part 1, a movable groove 101 is provided on the telescopic baffle 10, extending through the telescopic baffle 10 and arranged along its length. A limiting post 11 is provided on the fixed part 1, which can be integrally formed with the fixed part 1. The limiting post 11 is placed within the movable groove 101, and the movement of the telescopic baffle 10 is limited by the setting of the limiting post 11 and the movable groove 101.

[0044] Furthermore, a thrust spring 12 is installed at one end of the telescopic baffle 10, with one end of the thrust spring 12 abutting against the telescopic baffle 10 and the other end abutting against the fixing part 1. To limit the position of the thrust spring 12 on the fixing part 1, a spring groove 13 can be provided on the fixing part 1, and the thrust spring 12 is placed within the spring groove 13. One end of the thrust spring 12 can be connected and fixed to the telescopic baffle 10 by screws or the like.

[0045] A vertical lever 102 is provided at the other end of the telescopic baffle 10. A positioning groove 14 is provided on the side of the slide rail groove 9 of the fixing part 1, corresponding to the position of the vertical lever 102. The vertical lever 102 can move within the positioning groove 14. When the fixing part 1 and the sliding part 2 are engaged, the side of the top block 22 is in contact with the side of the vertical lever 102, thereby pressing down the vertical lever 102 and thus pressing down the telescopic baffle 10, so that the slide rail groove 9 of the fixing part 1 and the slide rail groove 9 of the sliding part 2 are connected. In this embodiment, the vertical lever 102 can be locked in the positioning groove 14 to prevent the telescopic baffle 10 from shaking when it retracts.

[0046] The sliding part 2 has a buckle 15 on its side, and the fixed part 1 has a corresponding groove 16. The buckle 15 and the groove 16 are engaged. Both the buckle 15 and the groove 16 are located on one side of the slide rail groove 9. The buckle 15 and the groove 16 make the engagement between the fixed part 1 and the sliding part 2 more stable.

[0047] The sliding part 2 has a guide groove 17, which is located on the other side of the slide rail through groove 9. The guide protrusion 7 is sleeved with the guide groove 17, and the two magnetic suction members are respectively installed on the guide protrusion 7 and in the guide groove 17. A pulley assembly 18 is provided on the side of the guide groove 17, and the side of the guide protrusion 7 slides in contact with the pulley assembly 18. The pulley assembly 18 can be an existing pulley assembly, which is prior art. The pulley of the pulley assembly 18 can be connected to the sliding part 2 via a rotating shaft or the like.

[0048] One end of the guide groove 17 has an opening, and one end of the guide protrusion 7 is provided with a vertical baffle 19. The surface area of ​​the vertical baffle 19 is larger than the vertical cross-sectional area of ​​the opening at one end of the guide groove 17. The vertical baffle 19 provides limiting support for the inner side of the sliding part 2, preventing the sliding part 2 from slamming hard against the fixed part 1 when the closure is closed, thereby improving the reliability of the structure.

[0049] The above description is a further detailed explanation of the present utility model in conjunction with specific preferred embodiments. It should not be assumed that the specific implementation of the present utility model is limited to these descriptions. All equivalent changes and modifications made within the scope of this application should still fall within the scope of the present utility model.

Claims

1. A composite locking type PD door closer, comprising a fixed part and a sliding part that slide and interlock with each other, wherein the fixed part and the sliding part are respectively disposed on the door frame and the door leaf, and magnetic attracting elements that can magnetically attract and adhere to each other are respectively installed on the fixed part and the sliding part, characterized in that, Also includes: A snap-fit ​​assembly includes a snap-fit ​​protrusion and an elastic element, one end of the elastic element being connected to the sliding portion, and the other end of the elastic element abutting against the snap-fit ​​protrusion, wherein the snap-fit ​​protrusion is slidably connected to the sliding portion; A snap-fit ​​groove is provided on the fixing part, and the snap-fit ​​protrusion snaps into the snap-fit ​​groove. In the snap-fit ​​state, the snap-fit ​​protrusion is located between the elastic member and the snap-fit ​​groove.

2. The composite lock-type PD door closer according to claim 1, characterized in that, A snap-fit ​​sliding member is installed on the sliding part, and the snap-fit ​​protrusion is slidably connected to the snap-fit ​​sliding member.

3. The composite lock-type PD door closer according to claim 2, wherein, The snap-fit ​​sliding member has a slide rail that extends along the height direction of the snap-fit ​​sliding member. The snap-fit ​​protrusion has a groove that runs vertically through the snap-fit ​​protrusion. The snap-fit ​​protrusion is slidably connected to the slide rail through the groove.

4. The composite lock-type PD door closer according to any one of claims 1 to 3, characterized in that, The snap-fit ​​assembly consists of two parts. The fixing part has a guide protrusion, and the two opposite sides of the guide protrusion have snap-fit ​​grooves. The snap-fit ​​protrusions of the two snap-fit ​​assemblies snap into the two snap-fit ​​grooves respectively.

5. The composite lock-type PD door closer according to any one of claims 1 to 3, characterized in that, The snap-fit ​​protrusion has a limiting member, and the sliding part has a limiting groove, and the limiting member moves within the limiting groove.

6. The composite lock-type PD door closer according to any one of claims 1 to 3, characterized in that, The sliding part has a buckle on its side, and the corresponding position of the fixing part has a slot, and the buckle engages with the slot.

7. The composite lock-type PD door closer according to claim 4, wherein, The sliding part has a guide groove, the guide protrusion is sleeved with the guide groove, and the two magnetic suction members are respectively installed on the guide protrusion and in the guide groove.

8. The composite lock-type PD door closer according to claim 7, wherein, The guide groove has a pulley assembly on its side, and the side of the guide protrusion slides and fits against the pulley assembly.

9. The composite lock-type PD door closer according to claim 7, wherein, One end of the guide groove has an opening, and one end of the guide protrusion is provided with a vertical baffle. The surface area of ​​the vertical baffle is greater than the vertical cross-sectional area of ​​the opening at one end of the guide groove.

10. The composite locking type PD door closer according to any one of claims 1 to 3, characterized in that, Both the fixed part and the sliding part are provided with slide rail grooves. The sliding part has a top block on the side of the slide rail groove. The fixed part is provided with a telescopic baffle that is movably connected to the fixed part. When the fixed part and the sliding part are separated, the telescopic baffle covers the slide rail groove of the fixed part. When the fixed part and the sliding part are engaged, the side of the top block fits against the side of the telescopic baffle, and the slide rail groove of the fixed part is connected to the slide rail groove of the sliding part.

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