Cylinder door connecting mechanism

Abstract

The utility model discloses a cylindrical door connecting mechanism, including upper connecting axle and lower connecting axle, the bottom of upper connecting axle passes through screw installation and is limited to the spacing piece, and the spacing piece and the bottom of upper connecting axle are slidably sleeved with the adjusting block, and the surface of adjusting block is equipped with the mounting hole for connecting the upper part of the axle, and the bottom of upper connecting axle is equipped with the slot of through -going, and the slot is rotatably installed with the adjusting screw rod, and one end of adjusting screw rod is connected with the lateral surface of adjusting block, and the one side of upper connecting axle and lower connecting axle integrally extends the Z -shaped connecting end for connecting the door leaf, and the utility model relates to door fittings technical field. The cylindrical door connecting mechanism is through the adjusting block design of fine adjustment, and the installation deviation of the axle of heaven and earth is effectively compensated, makes the door leaf rotation smooth, and more through the unique Z -shaped connecting end, and the door leaf section bar forms the surface contact and multiple fixed, greatly strengthens the rigidity and stability of connection, fundamentally solves the problem of the insufficient strength of traditional connection mode, and the problem of easy loosening.

Description

Technical Field

[0001] This utility model relates to the field of door fittings technology, specifically a cylindrical door connection mechanism. Background Technology

[0002] Cylindrical doors, with their modern, simple, and aesthetically pleasing design, are increasingly widely used in modern architectural decoration. These doors typically utilize concealed top and bottom hinges for rotation. However, in actual installation and use, existing technology presents two main problems: Poor alignment of the top and bottom hinges leads to installation difficulties: Due to construction errors or door frame installation deviations, the concentricity of the top and bottom hinges embedded in the door frame is often difficult to guarantee. Traditional connectors are mostly rigid structures, lacking effective adjustment capabilities. Installing the door leaf with even slight deviations in the top and bottom hinges can cause the door to rotate unevenly, produce abnormal noises, and even accelerate the wear of the hinges, severely affecting their service life. Installers typically need to repeatedly adjust the door frame or hinge base, a tedious, time-consuming, and labor-intensive process with difficulty in ensuring accuracy.

[0003] Insufficient door panel connection strength: More importantly, existing door panels rely solely on screws to lock onto the door panel's cylindrical shaft. This method has significant drawbacks: Firstly, the connection point is singular, primarily depending on the tightening force of the screws, resulting in poor connection strength.

[0004] Therefore, there is an urgent need for a new type of cylindrical door connection mechanism that has a fine-tuning function to compensate for installation errors, while also achieving a firm and stable connection with the door leaf, in order to fundamentally solve the above problems. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a cylindrical door connection mechanism that solves the problems of rotational jamming and installation difficulties caused by misalignment of the top and bottom pivots in cylindrical doors, as well as insufficient connection strength between the door leaf and the connection mechanism, leading to easy loosening.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: a cylindrical door connecting mechanism, including an upper connecting shaft and a lower connecting shaft, wherein a limiting plate is installed at the bottom of the upper connecting shaft by screws, and an adjusting block is slidably sleeved between the limiting plate and the bottom of the upper connecting shaft, wherein an installation hole for connecting an upper pivot is opened on the surface of the adjusting block, and a through groove is opened at the bottom of the upper connecting shaft, wherein an adjusting screw is rotatably installed in the groove, and one end of the adjusting screw is threadedly connected to the side of the adjusting block; Rotating the adjusting screw can drive the adjusting block to slide along the bottom of the upper connecting shaft to adjust the position of the mounting hole; A limiting hole is provided in the middle of the lower connecting shaft for connecting with the lower ground shaft and transmitting torque; Both the upper and lower connecting shafts have an integrally extended Z-shaped connecting end for connecting the door leaf on one side.

[0007] Preferably, mounting openings are provided between the Z-shaped connecting end of the upper connecting shaft and the body, and between the Z-shaped connecting end of the lower connecting shaft and the body, and sealing brush strips are installed thereon for sealing and cleaning the top and bottom.

[0008] Preferably, both the upper connecting shaft and the lower connecting shaft have an integrally extended insertion ring on their main body surfaces for installation in conjunction with the cylindrical shaft of the cylindrical door.

[0009] Preferably, the upper connecting shaft and the lower connecting shaft are symmetrically provided with screw holes around their periphery for fastening to the cylindrical shaft of the cylindrical door with screws.

[0010] Preferably, the limiting hole of the lower connecting shaft is a square hole, a rectangular hole, or a polygonal hole.

[0011] Preferably, the end of the adjusting screw is provided with a structure that facilitates tool operation, such as an internal hexagonal hole, a cross groove, or a slotted groove.

[0012] This utility model provides a cylindrical door connecting mechanism. Compared with the prior art, it has the following advantages: 1. This cylindrical door connection mechanism, by setting a sliding adjustment block driven by an adjusting screw on the upper connecting shaft, enables fine adjustment of the connection position at the top of the door leaf. This structure can effectively compensate for the concentricity deviation of the top and bottom shafts on the construction site, ensuring that the door leaf rotates smoothly and silently after installation. It fundamentally solves the installation problem caused by poor alignment, greatly reduces the installation threshold and the technical requirements for workers, and improves installation efficiency and quality.

[0013] 2. This cylindrical door connection mechanism creatively increases the direct connection points with the door leaf profile by extending a Z-shaped connection end integrally on one side of the upper and lower connecting shafts. This design optimizes the traditional "single-point screw locking" into a multi-fixing mode combining "cylindrical shaft locking and Z-shaped surface contact fixing," significantly increasing the connection strength and stress area, effectively dispersing the torque generated by opening and closing the door, greatly enhancing the rigidity of the connection and the stability of long-term use, and completely solving the problem of poor connection strength mentioned in the background technology.

[0014] 3. The cylindrical door connecting mechanism, through the installation port 3, embeds a sealing brush strip, which can effectively clean the threshold and top of the door when the door is rotated, playing a role in dust prevention and sound insulation, and is also easy to replace. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the connecting shaft in the structure of this utility model; Figure 2This is a front view of the connecting shaft in the structure of this utility model; Figure 3 This is a schematic diagram of the connecting shaft under the structure of this utility model; Figure 4 This is a front view of the connecting shaft under the structure of this utility model; Figure 5 This is a schematic diagram showing the connection between the structure of this utility model and the door leaf profile.

[0016] In the diagram: 1. Upper connecting shaft; 11. Limiting plate; 12. Adjusting block; 13. Adjusting screw; 14. Mounting hole; 2. Lower connecting shaft; 21. Limiting hole; 3. Mounting port; 4. Z-shaped connecting end; 5. Screw hole; 6. Insertion ring. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figures 1 to 5 This utility model provides a technical solution: a cylindrical door connecting mechanism, including an upper connecting shaft 1 and a lower connecting shaft 2. The upper connecting shaft 1 is the core adjusting component of this mechanism. A limiting piece 11 is fixedly installed at its bottom by screws, forming a sliding space between the limiting piece 11 and the bottom of the upper connecting shaft 1. An adjusting block 12 is slidably sleeved in this space. A circular mounting hole 14 is provided on the surface of the adjusting block 12 for engaging the rotating end of a hinge (vertical shaft). To achieve precise adjustment, a through groove is provided at the bottom of the upper connecting shaft 1. An adjusting screw 13 is rotatably installed in this groove. A limiting ring is provided on the surface of the adjusting screw 13, thus limiting its rotation within the groove. One end of the adjusting screw 13 is screwed into a threaded hole on the side of the adjusting block 12 via a threaded connection. When a tool (such as a flathead screwdriver) is used to rotate the adjusting screw 13 through the through groove, the adjusting block 12 can be driven to move linearly within the sliding space, thereby precisely adjusting the position of the mounting hole 14.

[0019] The lower connecting shaft 2 is the main load-bearing and torque transmission component of this mechanism. It has a non-circular limiting hole 21 in the middle, preferably a square hole. The limiting hole 21 is used to connect the transmission head of the lower floor hinge (floor shaft). Because it is a non-circular fit, it can effectively transmit the rotational torque of the door leaf to the floor shaft, realizing the opening and closing of the door.

[0020] Both the upper connecting shaft 1 and the lower connecting shaft 2 have an integrally extended Z-shaped connecting end 4 on one side. This connecting end is used to be directly fixed to the door leaf profile. An installation port 3 is provided between the Z-shaped connecting end 4 and the connecting shaft body. This installation port 3 is mainly used to embed the sealing brush strip, which can effectively clean the threshold and top of the door when the door is rotated, and play a role in dust prevention and sound insulation.

[0021] To ensure the stability of the connection between the connecting mechanism and the cylindrical door hinge, an insertion ring 6 is integrally extended on the surface of both the upper connecting shaft 1 and the lower connecting shaft 2. The outer diameter of the insertion ring matches the inner diameter of the cylindrical door hinge, which serves as a preliminary positioning and support. At the same time, multiple screw holes 5 are symmetrically opened around the periphery of the connecting shaft body for screwing in fastening screws to firmly lock the upper connecting shaft 1 and the lower connecting shaft 2 onto the cylindrical door hinge.

[0022] The installation and operation process is as follows: Pre-installation: First, align the upper connecting shaft 1 and the lower connecting shaft 2 from the top and bottom respectively and insert them into the cylindrical shaft of the cylindrical door. Insert the ring 6 to ensure that the two are quickly aligned with the center. Then, use screws to fasten the upper and lower connecting shafts to the cylindrical shaft through the screw holes 5 to ensure that the connecting mechanism and the door leaf become one.

[0023] Connecting the door leaf: At this time, the Z-shaped connecting end 4 will be tightly attached to the inside of the door leaf profile. Use screws to firmly fix it to the door leaf profile through the holes on the Z-shaped connecting end 4. This three-point (cylindrical shaft + Z-shaped connecting end) fixing method greatly enhances the rigidity and stability of the connection between the door leaf and the rotating mechanism. Then, the sealing brush strip can be pressed into the installation port 3 to complete the assembly of the door leaf side.

[0024] Connecting the top and bottom hinges: Lift the installed door leaf as a whole so that the square limiting hole 21 of the lower connecting shaft 2 is accurately fitted into the square transmission head of the floor hinge (floor shaft) that has been pre-embedded in the ground. Then, straighten the door leaf so that the mounting hole 14 of the upper connecting shaft 1 is aligned with the rotating end of the top hinge (top shaft) installed above the door frame.

[0025] Fine adjustment: Due to possible errors in construction, there may be slight concentricity deviations between the top and bottom pivots. In this case, insert a tool (such as a flathead screwdriver) into the through slot of the upper connecting shaft 1 and rotate the adjusting screw 13. The rotation of the screw will push the adjusting block 12 to move, thereby driving the mounting hole 14 on it and the top pivot fitted in it to fine adjust its position until the bottom and top pivots are perfectly aligned and the door can rotate smoothly without jamming. After the adjustment is completed, the entire system status is locked.

[0026] Working state: When the door is pushed, the torque is transmitted to the connecting shaft through the Z-shaped connecting end 4. The lower connecting shaft 2 transmits the torque to the floor hinge through the square hole, realizing the opening and closing of the door. The automatic reset function of the door is provided by the reset mechanism (such as a spring) inside the floor hinge, which is independent of this connecting mechanism. The mounting hole 14 of the upper connecting shaft 1 is designed to be circular, allowing the top hinge (top shaft) to rotate smoothly in it.

[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cylindrical door connecting mechanism, comprising an upper connecting shaft (1) and a lower connecting shaft (2), characterized in that: The bottom of the upper connecting shaft (1) is fitted with a limiting piece (11) by screws. An adjusting block (12) is slidably sleeved between the limiting piece (11) and the bottom of the upper connecting shaft (1). The surface of the adjusting block (12) is provided with a mounting hole (14) for connecting the upper shaft. The bottom of the upper connecting shaft (1) is provided with a through groove. An adjusting screw (13) is rotatably installed in the groove. One end of the adjusting screw (13) is threadedly connected to the side of the adjusting block (12). Rotating the adjusting screw (13) can drive the adjusting block (12) to slide along the bottom of the upper connecting shaft (1) to adjust the position of the mounting hole (14); The lower connecting shaft (2) has a limiting hole (21) in the middle for connecting with the lower ground shaft and transmitting torque; Both the upper connecting shaft (1) and the lower connecting shaft (2) have an integrally extended Z-shaped connecting end (4) for connecting the door leaf on one side.

2. The cylindrical door connecting mechanism according to claim 1, characterized in that: An installation port (3) is provided between the Z-shaped connecting end (4) of the upper connecting shaft (1) and the body, and between the Z-shaped connecting end (4) of the lower connecting shaft (2) and the body, and a sealing brush strip is installed thereon.

3. The cylindrical door connecting mechanism according to claim 1, characterized in that: The upper connecting shaft (1) and the lower connecting shaft (2) both have an insert ring (6) integrally extended on their main surfaces.

4. The cylindrical door connecting mechanism according to claim 1, characterized in that: Screw holes (5) are symmetrically provided around the body of the upper connecting shaft (1) and the lower connecting shaft (2).

5. A cylindrical door connecting mechanism according to claim 1, characterized in that: The limiting hole (21) of the lower connecting shaft (2) is a square hole, a rectangular hole or a polygonal hole.

Images