Magnetic PD door closer

Abstract

The utility model belongs to a magnetic PD door closer which comprises a fixed part and a sliding part which are mutually buckled in a sliding mode, the fixed part and the sliding part are arranged on a door frame and a door leaf respectively, the fixed part and the sliding part are correspondingly provided with sliding rail through grooves, and the fixed part is provided with telescopic blocking pieces corresponding to the sliding rail through grooves. The front end, corresponding to the telescopic blocking piece, of the sliding part is provided with an ejector block, magnetic attraction pieces are correspondingly installed on the inner sides of the fixed part and the sliding part, and the magnetic attraction pieces on the inner sides of the fixed part and the sliding part can be attached to each other in a magnetic attraction mode. According to the closer, rapid locking and unlocking are achieved through the magnetic mechanism, the locking performance cannot be affected by opening and closing abrasion, the service life is extremely long, opening and closing are smooth and stable, and the closer has remarkable practical significance.

Description

Technical Field

[0001] The utility model relates to the technical field of closers, and in particular to a magnetic PD door closer. Background Art

[0002] PD door, also called PT door, refers to a door that can be pushed and pulled as well as opened horizontally. The product design concept originated in Singapore and has been very popular in China in recent years. PT door completely subverts the defect of traditional sliding door that can only be opened halfway. It is mainly used in kitchens, living rooms, balconies and store doors. It has the advantages of easy opening, large space utilization, beautiful appearance and durability, and is deeply loved by consumers. The sliding track of PT door consists of two parts: one part is a fixed track fixed to the upper part of the door and window frame, and the other part is a moving track fixed to the top of the fixed door and window frame. When it is necessary to achieve full opening, the sliding door and window needs to slide to the moving track with the help of the fixed track, overlap with the fixed door and window, and then rotate outward to open. Therefore, when opening horizontally, it is necessary to use a closer to block the push-pull pulley to prevent the push-pull pulley from slipping out of the track and causing an accident.

[0003] The PD door closer commonly used in the market is shown in the patent document with patent number CN202221258377.3 and the name "PD door closer", which includes a closer body, the closer body includes a fixed part and a sliding part that slide with each other, the fixed part and the sliding part are respectively arranged on the door frame and multiple door leaves, and tracks for rollers to pass are respectively arranged in the fixed part and the sliding part, the fixed part is provided with a baffle that elastically cooperates with it and is used to limit multiple door leaves, the fixed part abuts against the baffle, the fixed part is provided with a locking block, and the sliding part is provided with multiple pulleys that are engaged with the locking block, each pulley is provided with a second spring that elastically cooperates with the sliding part, and an adjusting member that is movably connected to the sliding part is fixed on one side of the second spring. Through the cooperation of the two pulleys and the second spring, the height difference or level difference between the locking block and the two pulleys can be automatically adjusted, the resistance caused by the gap can be reduced, and the contact area and strength of the friction can be reduced.

[0004] However, although the opening and closing lock mechanism of the closer designed above is smoother than the mechanism of the locking block 14 cooperating with the locking groove 26 disclosed in the patent document with patent number CN202122442279.7, and reduces friction resistance and structural wear, due to the limited life of the spring, after a period of use, the closer is prone to accidental loosening due to spring wear, causing the PD doors and windows to accidentally open horizontally, posing certain safety hazards.

[0005] In view of this, it is necessary to continue to improve and develop the switching smoothness and structural durability of the closer. Utility Model Content

[0006] In order to solve the problem that the current transformer coil with a casing requires workers to manually wind the wire ends of the transformer coil around the wiring terminals of the transformer casing, resulting in low work efficiency and a lack of mechanical equipment suitable for this process for automated production, especially a lack of equipment that can automatically place the transformer bottom shell into the fixture, a magnetic PD door closer is provided.

[0007] The magnetic PD door closer comprises a fixed part and a sliding part which are slidably engaged with each other, the fixed part and the sliding part are respectively arranged on the door frame and the door leaf, the fixed part and the sliding part are both provided with corresponding slide rail grooves, the fixed part is provided with a telescopic blocking piece corresponding to the slide rail groove, the sliding part is provided with a top block at the front end corresponding to the telescopic blocking piece, the inner sides of the fixed part and the sliding part are both installed with magnetic parts correspondingly, and the magnetic parts on the inner sides of the fixed part and the sliding part can be magnetically adsorbed and adhered to each other.

[0008] Furthermore, the inner sides of the fixed part and the sliding part are respectively provided with guide protrusions and guide grooves which are sleeved with each other, the front end of the guide groove is open, and magnetic suction parts are installed on the inner ends of the guide protrusions and the guide grooves.

[0009] Furthermore, a rotating wheel assembly is provided on the side of the guide groove, and the side of the rotating wheel assembly is slidably fitted with the side of the guide protrusion.

[0010] Furthermore, a vertical baffle is provided at the end of the guide protrusion, and the surface area of ​​the vertical baffle is larger than the vertical cross-sectional area of ​​one side of the front end opening of the guide groove of the sliding part.

[0011] Furthermore, the surface of the magnetic attraction component is smooth and quadrilateral.

[0012] Furthermore, a vertical paddle is provided at the inner front end of the telescopic baffle, a positioning slot is provided on the side of the slide rail slot of the fixed part corresponding to the vertical paddle, and a top block is provided on the side of the slide rail slot of the sliding part corresponding to the front end of the vertical paddle.

[0013] Furthermore, a guide rail hole is provided through the middle of the telescopic baffle, a guide member is slidably sleeved in the guide rail hole, and the guide member is fixedly connected to the fixing part.

[0014] Furthermore, a spring groove is provided on the inner side of the fixing portion corresponding to the end of the telescopic blocking piece, a thrust spring is installed in the spring groove, and a front end of the thrust spring is fixedly connected to the telescopic blocking piece.

[0015] The advantages of the utility model are:

[0016] 1. The magnetic adsorption and fixing design does not cause mechanical strain, and the opening and closing positioning mechanism has an extremely long service life.

[0017] 2. The magnetic suction parts and the cooperating guide protrusions, guide grooves and other mechanisms are used to position the fixed part and the sliding part when they are interlocked. The cooperating accuracy of the closer is high, which can prevent the closer from shaking and making friction noise when the door leaf moves.

[0018] 3. Opening and closing is smooth and easy, and the operation is convenient and labor-saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 This is the exploded structure diagram of the magnetic PD door closer;

[0021] Figure 2 This is the exploded structural diagram of the other side of the magnetic PD door closer;

[0022] Figure 3 It is a structural schematic diagram of the magnetic PD door closer in the closed state.

[0023] Figure ID:

[0024] 1. Fixed part; 101. Positioning slot; 102. Spring slot; 2. Sliding part; 3. Slide rail slot; 4. Telescopic baffle; 401. Vertical paddle; 402. Guide rail hole; 403. Guide member; 5. Top block; 6. Magnetic member; 7. Guide protrusion; 8. Guide slot; 9. Rotating wheel assembly; 10. Vertical baffle; 11. Thrust spring. DETAILED DESCRIPTION

[0025] In order to solve the problem that the current transformer coil with a casing requires workers to manually wind the wire ends of the transformer coil around the wiring terminals of the transformer casing, resulting in low work efficiency and a lack of mechanical equipment suitable for this process for automated production, especially a lack of equipment that can automatically place the transformer bottom shell into the fixture, a magnetic PD door closer is provided.

[0026] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] It should be noted that the terms such as "within", "in" and "a" cited in this specification are only for the convenience of description and are not used to limit the scope of the implementation of the present utility model. Changes or adjustments to their relative relationships, without substantially changing the technical content, should also be regarded as the scope of the implementation of the present utility model, and should be stated in advance.

[0028] In the description of the present utility model, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present 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 limiting the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, it should be noted that, 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 directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood by specific circumstances.

[0029] like Figures 1 to 3 As shown, the present embodiment provides a magnetic PD door closer, comprising a fixed part 1 and a sliding part 2 which are slidably engaged with each other, the fixed part 1 and the sliding part 2 are respectively arranged on the door frame and the door leaf, the fixed part 1 and the sliding part 2 are both correspondingly provided with a slide rail groove 3, the fixed part 1 is provided with a telescopic blocking piece 4 corresponding to the slide rail groove 3, a top block 5 is provided on the sliding part 2 at the front end corresponding to the telescopic blocking piece 4, the inner sides of the fixed part 1 and the sliding part 2 are both correspondingly installed with magnetic suction parts 6, and the magnetic suction parts 6 on the inner sides of the fixed part 1 and the sliding part 2 can be magnetically adsorbed and adhered to each other.

[0030] Among them, since the fixed part 1 and the sliding part 2 are designed to be magnetically attached, mechanical strain will not occur due to repeated opening and closing, and the service life is extremely long, taking into account the advantages of labor-saving opening and stable positioning. When the fixed part 1 and the sliding part 2 are separated, the telescopic baffle 4 extends and blocks the slide rail slot 3, and when the fixed part 1 and the sliding part 2 are buckled with each other, the top block 5 presses the telescopic baffle 4, so that the slide rail slots 3 on the fixed part 1 and the sliding part 2 are connected.

[0031] The inner sides of the fixed part 1 and the sliding part 2 are respectively provided with a guide protrusion 7 and a guide groove 8 which are sleeved with each other. The front end of the guide groove 8 is open, and a magnetic attraction member 6 is installed at one end of the inner side of the guide protrusion 7 and the guide groove 8. In this embodiment, the buckling stability of the fixed part 1 and the sliding part 2 is improved by using a concave and convex sleeve mechanism, which can prevent the closer from accidentally loosening and shaking under force. It is also worth mentioning that the design of setting the guide groove 8 on the sliding part 2 can reduce the volume of the sliding part 2, making the opening and closing of the closer more labor-saving.

[0032] A rotating wheel assembly 9 is provided on the side of the guide groove 8, and the side of the rotating wheel assembly 9 is slidably fitted with the side of the guide protrusion 7. The rotating wheel assembly 9 can be a rotating bearing or pulley part commonly used in the market, which can improve the fitting degree between the guide protrusion 7 and the guide groove 8 while reducing friction resistance.

[0033] A vertical baffle 10 is provided at the end of the guide protrusion 7, and the surface area of ​​the vertical baffle 10 is larger than the vertical cross-sectional area of ​​the front end opening of the guide groove 8 of the sliding part 2. The vertical baffle 10 provides a limiting support for the inner side of the sliding part 2, so as to prevent the sliding part 2 from hitting the fixing part 1 with great force when closing the closer, thereby preventing the guide protrusion 7 and the guide groove 8 from being damaged by collision, thereby improving the structural reliability.

[0034] The surface of the magnetic attraction member 6 is smooth and quadrilateral. The smooth surface of the magnetic attraction members 6 has a high degree of fit when magnetically adsorbed to each other, and it is more labor-saving to open and close. The quadrilateral design can improve the positioning stability of the magnetic attraction members 6 when adsorbed to each other, and further avoid the shaking between the guide protrusion 7 and the guide groove 8 under force.

[0035] A vertical paddle 401 is provided at the inner front end of the telescopic baffle 4, a positioning slot 101 is provided on the side of the slide rail slot 3 of the fixed part 1 corresponding to the vertical paddle 401, and a top block 5 is provided on the side of the slide rail slot 3 of the sliding part 2 corresponding to the front end of the vertical paddle 401. The vertical paddle 401 protruding inward on the telescopic baffle 4 can be stuck in the positioning slot 101 to prevent the telescopic baffle 4 from shaking when it is retracted. In addition, the design of the vertical paddle 401 in conjunction with the top block 5 helps to save the volume of the top block 5 and reduce the difficulty of component manufacturing.

[0036] A guide rail hole 402 is provided through the middle of the telescopic baffle 4, and a guide member 403 is slidably sleeved in the guide rail hole 402, and the guide member 403 is fixedly connected to the fixing part 1. The guide rail hole 402 cooperates with the guide member 403 to improve the positioning stability of the telescopic baffle 4.

[0037] A spring slot 102 is provided on the inner side of the fixing portion 1 corresponding to the end of the telescopic baffle 4, and a thrust spring 11 is installed in the spring slot 102, and the front end of the thrust spring 11 is fixedly connected to the telescopic baffle 4. The design of the thrust spring 11 installed in the spring slot 102 is relatively stable, which can increase the service life of the thrust spring 11.

[0038] The above contents are further detailed descriptions of the present invention in combination with specific preferred implementation modes. It cannot be determined that the specific implementation of the present invention is limited to these descriptions. That is, all equivalent changes and modifications made within the scope of this application should still fall within the scope of the present invention.

Claims

1. A magnetic PD door closer, comprising a fixed portion and a sliding portion that are slidably engaged with each other, wherein the fixed portion and the sliding portion are respectively arranged on a door frame and a door leaf, and characterized in that: The fixed part and the sliding part are both provided with slide rail grooves correspondingly, the fixed part is provided with a telescopic blocking piece corresponding to the slide rail groove, the sliding part is provided with a top block corresponding to the front end of the telescopic blocking piece, and the inner sides of the fixed part and the sliding part are both installed with magnetic suction parts correspondingly, and the magnetic suction parts on the inner sides of the fixed part and the sliding part can be magnetically adsorbed and adhered to each other.

2. The magnetic PD door closer according to claim 1, characterized in that: The inner sides of the fixed part and the sliding part are respectively provided with a guide protrusion and a guide groove which are sleeved with each other, the front end of the guide groove is open, and a magnetic attraction piece is installed at one end of the inner side of the guide protrusion and the guide groove.

3. The magnetic PD door closer according to claim 2, characterized in that: A rotating wheel assembly is arranged on the side of the guide groove, and the side of the rotating wheel assembly is slidably fitted with the side of the guide protrusion.

4. The magnetic PD door closer according to claim 2, characterized in that: A vertical baffle is disposed at the end of the guide protrusion, and the surface area of ​​the vertical baffle is larger than the vertical cross-sectional area of ​​one side of the front end opening of the guide groove of the sliding part.

5. The magnetic PD door closer according to claim 2, characterized in that: The surface of the magnetic attraction piece is smooth and quadrilateral.

6. The magnetic PD door closer according to claim 1, characterized in that: A vertical paddle is arranged at the inner front end of the telescopic baffle, a positioning slot is arranged on the side of the slide rail slot of the fixed part corresponding to the vertical paddle, and a top block is arranged on the side of the slide rail slot of the sliding part corresponding to the front end of the vertical paddle.

7. The magnetic PD door closer according to claim 1, characterized in that: A guide rail hole is provided through the middle of the telescopic baffle, a guide piece is slidably sleeved in the guide rail hole, and the guide piece is fixedly connected to the fixing part.

8. The magnetic PD door closer according to claim 7, characterized in that: A spring groove is arranged on the inner side of the fixing portion corresponding to the end of the telescopic blocking piece, a thrust spring is installed in the spring groove, and a front end of the thrust spring is fixedly connected to the telescopic blocking piece.

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