Plastic steel composite closure

Abstract

The utility model belongs to PD door closer technical field, concretely relates to plastic steel composite type closer, including the fixed part and the sliding part of mutual sliding buckle connection, the fixed part and the sliding part are arranged on the door frame and the door leaf respectively, one side of fixed part and sliding part all is provided with injection molding sliding slot, is provided with telescopic baffle on the injection molding sliding slot of fixed part, the front end of corresponding telescopic baffle on the sliding part is provided with the jamb, the surface of injection molding sliding slot has the reinforcing steel rail spare, the front end of jamb and telescopic baffle contact one side is provided with buffer soft rubber part. The utility model utilizes the composite design to reduce the weight of closer, guarantees the firm performance of pulley track at the same time, and is relatively quiet when opening and closing operation, can promote the use experience of PD door.

Description

Technical Field

[0001] This utility model relates to the field of PD door closure technology, and more specifically, to a plastic-steel composite closure. 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] A typical PD door closure structure is shown in patent document CN202420971946.1, entitled "A PD Closure". It includes a fixed component and a movable component, both of which share a pulley portion. The fixed component has a positioning structure, which limits the opening and closing of the pulley portion through the directional movement of an elastic element. The fixed component and the movable component are tightly fitted together. The movable component has a trigger element, and the fixed component has a mating surface that abuts against the trigger element. The movable component achieves locking and positioning by the movable trigger element pressing against the mating surface.

[0004] Since the pulley section is part of the door leaf pulley track, in order to ensure durability, the fixed and moving parts generally need to be made of metal as a whole, which makes it heavy, difficult to move, and the collision noise when opening and closing is also very obvious, so the user experience needs to be improved. Utility Model Content

[0005] To address the issues of heavy weight, difficult movement and opening / closing, and significant collision noise between the two halves of a conventional PD door closer, a plastic-steel composite closer is provided.

[0006] This application provides a plastic-steel composite closure, including a fixed part and a sliding part that slide and interlock with each other. The fixed part and the sliding part are respectively provided on the door frame and the door leaf. One side of the fixed part and the sliding part is provided with an injection-molded groove. A telescopic baffle is provided on the injection-molded groove of the fixed part. A top block is provided on the sliding part corresponding to the front end of the telescopic baffle. A reinforcing steel rail is fastened to the surface of the injection-molded groove. A cushioning soft rubber part is provided on the side of the front end of the top block that contacts the telescopic baffle.

[0007] Furthermore, the cushioning soft rubber component is in the shape of an I-beam, and the rear end of the cushioning soft rubber component is fitted into the side-opening slot at the front end of the top block.

[0008] Furthermore, the telescopic baffle is disposed in the telescopic guide groove in the fixed part, and elastic positioning blocks are symmetrically arranged on the inner side of the telescopic guide groove corresponding to the upper and lower sides of the top block, and arc-shaped grooves are arranged on the upper and lower sides of the top block corresponding to the elastic positioning blocks.

[0009] Furthermore, a positioning spring and a positioning baffle are sequentially provided on the rear side of the elastic positioning block, and the positioning baffle is installed on the fixing part by screws.

[0010] Furthermore, a return spring is provided between the fixing part and the rear side of the telescopic baffle, a pulley is installed in the fixing part, and a guide groove is provided in the telescopic baffle corresponding to the pulley.

[0011] Furthermore, a first magnetic attractor is installed on the lower side of the top block, and a second magnetic attractor with opposite polarity is installed on the fixing part corresponding to the first magnetic attractor.

[0012] Furthermore, the front ends of the side where the fixing part and the sliding part are engaged with each other are respectively provided with a positioning groove and a positioning protrusion, and the positioning groove and the positioning protrusion can engage with each other.

[0013] The advantages of this utility model are: The door panel pulley track is made by using interlocking reinforced steel rail components with injection-molded grooves, which reduces the structural weight while ensuring the durability of the track.

[0014] 2. The front end of the top block is equipped with a soft buffer rubber part, which can effectively absorb the vibration and noise generated when the fixed part and the sliding part are engaged, and reduce the wear during operation.

[0015] 3. The fixed part and the sliding part have two locking methods: elastic positioning block and magnetic attraction, which are highly reliable and the door is not easy to shake when it is running. Attached Figure Description

[0016] 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.

[0017] Figure 1 This is an exploded structural diagram of a plastic-steel composite closure. Figure 2 This is an exploded structural diagram of the other side of the plastic-steel composite closure. Figure 3 This is a structural schematic diagram of a plastic-steel composite closure. Figure 4 This is a top view of the plastic-steel composite closure. Figure 5This is a schematic diagram of the structure when the fixed part and the sliding part are separated.

[0018] Attached image labels: 1. Fixing part; 101. Telescopic guide groove; 102. Pulley; 2. Sliding part; 3. Injection molded slide groove; 4. Telescopic baffle; 401. Return spring; 402. Guide slide groove; 5. Top block; 501. Side opening slot; 502. Arc-shaped groove; 6. Reinforcing steel rail component; 7. Buffer soft rubber component; 8. Elastic positioning block; 801. Positioning spring; 802. Positioning baffle; 9. First magnetic suction component; 10. Second magnetic suction component; 11. Alignment groove; 12. Alignment protrusion. Detailed Implementation

[0019] To address the issue of insufficient fixing force between the fixed and sliding parts of existing PD door closers, which may cause wobbling, a plastic-steel composite closer is provided.

[0020] 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.

[0021] 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.

[0022] 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.

[0023] like Figures 1 to 5 As shown, this embodiment provides a plastic-steel composite closure, including a fixed part 1 and a sliding part 2 that slide and interlock with each other. The fixed part 1 and the sliding part 2 are respectively provided on the door frame and the door leaf. One side of the fixed part 1 and the sliding part 2 is provided with an injection-molded groove 3. A telescopic baffle 4 is provided on the injection-molded groove 3 of the fixed part 1. A top block 5 is provided on the sliding part 2 corresponding to the front end of the telescopic baffle 4. A reinforcing steel rail 6 is fastened to the surface of the injection-molded groove 3. A buffer soft rubber part 7 is provided on the side of the top block 5 that contacts the telescopic baffle 4.

[0024] In actual use, the fixed part 1 and the sliding part 2 with the injection-molded groove 3 can be integrally molded by plastic or 3D printing to reduce the weight of the fixed part 1 and the sliding part 2. After installing the reinforcing steel rail 6 on the surface of the injection-molded groove 3, wear on the injection-molded groove 3 can be avoided when the pulley moves.

[0025] When the fixed part 1 and the sliding part 2 are separated, the telescopic baffle 4 extends forward to block the injection-molded slide groove 3, thus closing the slide rail. When the fixed part 1 and the sliding part 2 are closed, the top block 5 pushes the telescopic baffle 4 to retract backward, and the injection-molded slide grooves 3 on the fixed part 1 and the sliding part 2 align with each other, allowing the slide rail to pass through and enabling the pulleys of the PD door to slide.

[0026] Because the front end of the top block 5 is equipped with a soft rubber buffer 7, the top block 5 will not produce noise or vibration due to collision when it comes into contact with the telescopic baffle 4, resulting in a better user experience.

[0027] The cushioning soft rubber component 7 is I-shaped, and its rear end is fitted into the side-opening slot 501 at the front end of the top block 5. The I-shaped cushioning soft rubber component 7 can be quickly installed and removed, facilitating production assembly, maintenance, and replacement.

[0028] The telescopic baffle 4 is disposed within the telescopic guide groove 101 in the fixed part 1. Elastic positioning blocks 8 are symmetrically arranged on the inner side of the telescopic guide groove 101 corresponding to the upper and lower sides of the top block 5. Arc-shaped grooves 502 are provided on the upper and lower sides of the top block 5 corresponding to the elastic positioning blocks 8. When the fixed part 1 and the sliding part 2 are engaged, the elastic positioning blocks 8 can clamp the top block 5 vertically to secure the fixed part 1 and the sliding part 2, preventing the injection molding groove 3 from shaking or shifting under force.

[0029] The elastic positioning block 8 is provided with a positioning spring 801 and a positioning baffle 802 in sequence on the rear side. The positioning baffle 802 is installed on the fixing part 1 by screws, which facilitates the assembly and replacement of the new positioning spring 801.

[0030] A return spring 401 is provided between the fixed part 1 and the rear side of the telescopic baffle 4. A pulley 102 is installed in the fixed part 1, and a guide groove 402 is provided in the telescopic baffle 4 corresponding to the pulley 102. The pulley 102 and the guide groove 402 can ensure that the telescopic baffle 4 will not deviate when it moves back and forth, and avoid running jam.

[0031] A first magnetic attractor 9 is installed on the lower side of the top block 5, and a second magnetic attractor 10 with opposite polarity is installed on the fixing part 1 corresponding to the first magnetic attractor 9. The cooperation between the first magnetic attractor 9 and the second magnetic attractor 10 can improve the stability when the fixing part 1 and the sliding part 2 are fastened together.

[0032] The front end of the side where the fixed part 1 and the sliding part 2 are interlocked is provided with a positioning groove 11 and a positioning protrusion 12, respectively. The positioning groove 11 and the positioning protrusion 12 can be interlocked with each other to avoid the fixed part 1 and the sliding part 2 being misaligned, which would prevent the injection molding groove 3 from passing through the pulley smoothly.

[0033] 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 plastic-steel composite door closure, 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, characterized in that, Both the fixed part and the sliding part are provided with injection grooves on one side. The fixed part is provided with telescopic baffles on the injection grooves. The sliding part is provided with a top block corresponding to the front end of the telescopic baffles. The surface of the injection grooves is fastened with reinforcing steel rails. The front end of the top block is provided with a buffer soft rubber part on the side that contacts the telescopic baffles.

2. The plastic-steel composite closure according to claim 1, characterized in that, The cushioning soft rubber component is I-shaped, and its rear end is fitted into the side-opening slot at the front end of the top block.

3. The plastic-steel composite closure according to claim 1, characterized in that, The telescopic baffle is disposed in the telescopic guide groove in the fixed part. The inner side of the telescopic guide groove is symmetrically provided with elastic positioning blocks on the upper and lower sides of the top block, and the upper and lower sides of the top block are provided with arc-shaped grooves corresponding to the elastic positioning blocks.

4. The plastic-steel composite closure according to claim 3, characterized in that, The elastic positioning block is provided with a positioning spring and a positioning baffle in sequence on its rear side. The positioning baffle is installed on the fixing part by screws.

5. The plastic-steel composite closure according to claim 1, characterized in that, A return spring is provided between the fixed part and the rear side of the telescopic baffle. A pulley is installed in the fixed part, and a guide groove is provided in the telescopic baffle corresponding to the pulley.

6. The plastic-steel composite closure according to claim 1, characterized in that, A first magnetic attractor is installed on the lower side of the top block, and a second magnetic attractor with opposite polarity is installed on the fixing part corresponding to the first magnetic attractor.

7. The plastic-steel composite closure according to claim 1, characterized in that, The front end of the side where the fixed part and the sliding part are interlocked is provided with an alignment groove and an alignment protrusion, respectively, and the alignment groove and the alignment protrusion can be interlocked with each other.

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