Entrance door
By controlling the opening angle of the entrance door through limit components and actuators, the security risks of traditional entrance doors are solved, enabling the prevention of criminals from breaking into the house and robbing people under restricted conditions, and ensuring the safe entry and exit of users.
Patent Information
- Application Number
- CN202520385804.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-06
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-03-06
AI Technical Summary
Traditional front doors pose security risks, as criminals can use methods such as delivering packages or food to trick people into opening the door and then rob homes.
Design an entrance door that controls the opening angle of the door leaf through a limiting component and a drive, limiting it to only a certain angle in a restricted opening state to prevent it from being fully opened. The opening angle of the door leaf relative to the door frame is limited by the cooperation of the limiting block and the swing arm to ensure safety.
It effectively prevents criminals from taking advantage of the situation to break into the house and rob, improves the security of the entrance door, and ensures that users can fully open the door to enter and exit when they confirm that the external situation is safe.
Smart Images
Figure CN223893984U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to door leaf technical field, especially a kind of entrance door. BACKGROUND
[0002] Entrance door refers to the first door of house, need to have safety protection, durable resistance to damage and multiple functions such as decorative appearance.Typical entrance door usually adopts steel, wood or composite material structure, realizes basic anti-theft performance by lock and door leaf reinforcement design.
[0003] In related art, there is certain security risk when entrance door is used, for example, criminal tricks children and old people to open door by sending express delivery, sending take-out and other ways, and then break into house to rob. CONTENT OF UTILITY MODEL
[0004] The utility model aims at at least one of the technical problems existing in prior art is solved.For this purpose, the utility model provides an entrance door, which is beneficial to improve the use safety of entrance door.
[0005] According to the entrance door provided by the utility model, the side of the door leaf is rotatably connected with the door frame, and the entrance door further comprises: a first connecting seat connected with the door leaf; a limiting assembly comprising a limiting block and a first driver, the first driver is connected to the first connecting seat, the first driver is connected with the limiting block to drive the limiting block to approach or move away from the first connecting seat, when the limiting block approaches the first connecting seat, the limiting block can jointly define a limiting groove with the first connecting seat; a swing arm, one end of the swing arm is rotatably connected with the door frame, and the other end of the swing arm can slide in the limiting groove; wherein, the entrance door has a limited opening state and a completely open state; the limited opening state is that the limiting block approaches the first connecting seat, the other end of the swing arm abuts against the wall surface of the limiting groove to limit the opening angle of the door leaf relative to the door frame; the completely open state is that the limiting block moves away from the first connecting seat, and the swing arm is separated from the limiting assembly and the first connecting seat.
[0006] The household entrance door has at least the following beneficial effects: the door leaf and the door frame are rotationally connected, the first connecting seat is connected with the door leaf, the limiting assembly comprises a limiting block and a first driver, the first driver is connected to the first connecting seat, and the first driver can drive the limiting block to move close to or away from the first connecting seat, so as to switch between the limited opening state and the fully open state; when the first driver drives the limiting block to move close to the first connecting seat, the limiting block and the first connecting seat can jointly define the limiting groove; when the user opens the door leaf, one end of the swing arm can be rotationally connected with the door frame, so that the other end of the swing arm slides into the limiting groove, and the other end of the swing arm abuts against the wall surface of the limiting groove, that is, the abutment between the limiting block and the swing arm is achieved, so as to limit the opening angle of the door leaf relative to the door frame, that is, the door leaf can only be opened at a certain angle relative to the door frame, and cannot be fully opened, which can effectively prevent the case that the lawbreaker outside the door takes the opportunity to break into the house and rob; when the user confirms that the situation outside the house is safe, the user can drive the limiting block to move away from the first connecting seat through the first driver, so as to split the limiting groove, so as to eliminate the limiting effect of the limiting block on the swing arm, that is, the household entrance door is switched to the fully open state, and the user can continue to rotate the door leaf, so that the door leaf is fully opened relative to the door frame, so as to facilitate the user to enter or exit the doorway, and the limiting effect of the limiting assembly on the swing arm can limit the opening angle of the door leaf relative to the door frame, thereby improving the use safety of the household entrance door.
[0007] According to some embodiments of the present application, the bottom wall of the first connecting seat is provided with a first through hole, the first driver is connected to the lower end of the first connecting seat, and the first driver is used to drive the limiting block to ascend or descend along the first through hole; the circumferential wall of the limiting block and the bottom wall of the first connecting seat can jointly define the limiting groove.
[0008] According to some embodiments of the present application, the limiting block comprises a first sub-block and a second sub-block connected with each other, and the first sub-block and the second sub-block are arranged at an included angle; the limited opening state is that the other end of the swing arm abuts against the connection position of the first sub-block and the second sub-block.
[0009] According to some embodiments of the present application, the other end of the swing arm is connected with a pulley, and the pulley is configured to rotate around an axis extending upward and downward.
[0010] According to some embodiments of the present application, the first connecting seat is provided with a sliding groove, and when the door leaf is opened or closed relative to the door frame, the other end of the swing arm is configured to exit or enter the sliding groove.
[0011] According to some embodiments of the present application, the household entrance door further comprises a spring and a second connecting seat, the second connecting seat is connected to the door frame, one end of the swing arm is rotationally connected with the second connecting seat, one end of the spring is rotationally connected with the second connecting seat, and the other end of the spring is rotationally connected with the swing arm.
[0012] According to some embodiments of the utility model, the rotating connection point of the spring and the second connecting seat is located on the swing path of the swing arm; when the spring is located on the side of the swing arm close to the door frame, the spring is used for driving the swing arm to move away from the door frame; when the spring is located on the side of the swing arm away from the door frame, the spring is used for driving the swing arm to move close to the door frame.
[0013] According to some embodiments of the utility model, the entrance door further includes a protective cover, the protective cover is connected with the first connecting seat, the protective cover is provided with a containing groove, the swing arm, the spring and the second connecting seat can enter and exit the containing groove.
[0014] According to some embodiments of the utility model, the protective cover is provided with a second perforation, the first connecting seat is arranged in the second perforation, the first connecting seat includes a first stopper and a second stopper which are parallel to each other, and the wall surface of the containing groove and the first stopper and the second stopper jointly define a sliding groove.
[0015] According to some embodiments of the utility model, the first connecting seat is connected to the upper end of the door leaf, and the second connecting seat is connected to the upper end of the door frame.
[0016] Additional aspects and advantages of the utility model will be in part apparent and in part pointed out hereinafter in the description of the utility model. BRIEF DESCRIPTION OF DRAWINGS
[0017] The utility model will be further described below in combination with the drawings and embodiments, wherein:
[0018] Figure 1 It is the front view of the entrance door of an embodiment of the utility model;
[0019] Figure 2 It is the plan view of the entrance door of an embodiment of the utility model in the limited open state;
[0020] Figure 3 It is the sectional view of the entrance door of an embodiment of the utility model in the limited open state;
[0021] Figure 4 It is the sectional view of the entrance door of an embodiment of the utility model in the completely open state;
[0022] Figure 5 It is the sectional view of the door leaf of the entrance door of an embodiment of the utility model relative to the door frame;
[0023] Figure 6 It is the structure schematic drawing of the entrance door (omitting door leaf and door frame) of an embodiment of the utility model in the limited open state;
[0024] Figure 7 It is Figure 6An explosion view of a door in a limited opening state is shown in FIG. 1.
[0025] Reference signs:
[0026] 100, door frame;
[0027] 200, door leaf;
[0028] 300, first connecting seat; 310, first stop block; 320, second stop block; 330, sliding groove; 340, first through hole;
[0029] 400, limiting assembly; 410, first driver; 420, limiting block; 421, first sub-block; 422, second sub-block;
[0030] 500, limiting groove;
[0031] 600, swing arm; 610, pulley; 620, avoiding groove;
[0032] 710, second connecting seat; 720, spring;
[0033] 800, protective cover; 810, accommodating groove; 820, second through hole;
[0034] 910, first mounting plate; 920, second mounting plate. DETAILED DESCRIPTION
[0035] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present application, and cannot be understood as a limitation of the present application.
[0036] In the description of the present application, it should be understood that the orientation description, such as the orientation or position relationship indicated by up, down, etc. is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.
[0037] In the description of the present application, the plural means more than two. If there is a description of first, second, it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the sequence of indicated technical features.
[0038] In the description of the utility model, unless otherwise explicitly limited, the words such as setting, installing, connecting should be understood broadly, and the skilled in the art can determine the specific meaning of the above words in the utility model in combination with the specific content of the technical scheme.
[0039] Referring to Figures 1 to 7 The utility model discloses a household door, including door leaf 200, door frame 100, first connecting seat 300, limiting component 400 and swing arm 600.
[0040] Referring to Figure 1 And Figure 2 The side of door leaf 200 can be rotatably connected with door frame 100 through a hinge, and door frame 100 can be connected with a support base body such as an external wall, and a lock is connected to door leaf 200, and a user can lock or unlock by operating the lock, and the rotation of door leaf 200 relative to door frame 100 can be realized, so that the opening and closing of door leaf 200 relative to door frame 100 can be realized.
[0041] Referring to Figure 3 、 Figure 4 And Figure 5 The first connecting seat 300 is connected to the upper end of door leaf 200, and the swing arm 600 is connected to the upper end of door frame 100, so that the blocking of the first connecting seat 300 and the swing arm 600 to the flow of the doorway is reduced. The first connecting seat 300 can provide support for the connection of the limiting component 400, and the limiting component 400 includes a limiting block 420 and a first driver 410, the first driver 410 is connected to the first connecting seat 300, and the first driver 410 is connected with the limiting block 420 to drive the limiting block 420 to approach or move away from the first connecting seat 300, when the limiting block 420 approaches the first connecting seat 300, the limiting block 420 can define a limiting groove 500 together with the first connecting seat 300, and when the limiting block 420 moves away from the first connecting seat 300, the limiting groove 500 can be split.
[0042] Referring to Figure 3 、 Figure 4 And Figure 5 One end of the swing arm 600 can be rotatably connected with the door frame 100 through a bearing, and the other end can slide in the limiting groove 500.
[0043] Referring to Figure 3 、 Figure 4 And Figure 5As shown, specifically, the entrance door has a limited opening state and a fully open state; in the limited opening state, the limiting block 420 is close to the first connecting seat 300, and the other end of the swing arm 600 abuts against the wall of the limiting groove 500 to limit the opening angle of the door leaf 200 relative to the door frame 100; in the fully open state, the limiting block 420 is far away from the first connecting seat 300, and the swing arm 600 is separated from the limiting component 400 and the first connecting seat 300.
[0044] Reference Figure 3 , Figure 4 and Figure 5 As shown, the first driver 410 can drive the limiting block 420 to move closer to or further away from the first connector 300 to switch between a restricted open state and a fully open state.
[0045] Reference Figure 3 , Figure 4 and Figure 5 As shown, when the first driver 410 drives the limiting block 420 to approach the first connecting seat 300, the limiting block 420 and the first connecting seat 300 together limit the limiting groove 500, and the entrance door switches to a restricted opening state. When the user opens the door leaf 200, one end of the swing arm 600 can be rotatably connected to the door frame 100, so that the other end of the swing arm 600 slides into the limiting groove 500, and the other end of the swing arm 600 abuts against the wall of the limiting groove 500. That is, through the abutment between the limiting block 420 and the swing arm 600, the opening angle of the door leaf 200 relative to the door frame 100 is limited, so that the door leaf 200 can only open to a certain angle relative to the door frame 100 and cannot be fully opened, which can effectively prevent criminals outside the door from taking the opportunity to enter the house and rob.
[0046] Reference Figure 3 , Figure 4 and Figure 5 As shown, when the user confirms that the outdoor situation is safe, the user can drive the limiting block 420 away from the first connecting seat 300 through the first driver 410, thereby splitting the limiting groove 500 and eliminating the limiting effect of the limiting block 420 on the swing arm 600. That is, the entrance door switches to the fully open state, and the user can continue to rotate the door leaf 200 so that the door leaf 200 is fully opened relative to the door frame 100, so that the user can enter and exit the door. The entrance door can limit the opening angle of the door leaf 200 relative to the door frame 100 through the limiting effect of the limiting component 400 on the swing arm 600, thereby improving the safety of the entrance door.
[0047] Reference Figure 3 , Figure 6 and Figure 7As shown, it can be understood that the bottom wall of the first connecting seat 300 is provided with a first through hole 340, and the first driver 410 is connected to the lower end of the first connecting seat 300. The shape and size of the first through hole 340 are adapted to the shape and size of the limiting block 420. The first driver 410 is used to drive the limiting block 420 to rise and fall along the first through hole 340. The peripheral wall of the limiting block 420 and the bottom wall of the first connecting seat 300 can jointly define the limiting groove 500.
[0048] Reference Figure 3 , Figure 6 and Figure 7 As shown, specifically, the first driver 410 can be a linear driver. The first driver 410 can drive the limiting block 420 to pass through the first through hole 340 from bottom to top, so that the limiting block 420 protrudes from the bottom wall of the first connecting seat 300, thereby allowing the peripheral wall of the limiting block 420 to jointly define the limiting groove 500 with the bottom wall of the first connecting seat 300. When the entrance door is in a restricted open state, the other end of the swing arm 600 can abut against the side wall of the first connecting seat 300 or the peripheral wall of the limiting block 420, thereby locking the other end of the swing arm 600 and limiting the swing arm 600. That is, the two ends of the swing arm 600 are connected to the door leaf 200 and the door frame 100 respectively. Under the limiting effect of the swing arm 600, the opening angle of the door leaf 200 relative to the door frame 100 is limited, which can effectively prevent criminals from outside from entering the room when the user opens the door.
[0049] Reference Figure 3 , Figure 6 and Figure 7 As shown, it can be understood that the limiting block 420 includes a first sub-block 421 and a second sub-block 422 connected to each other, with the first sub-block 421 and the second sub-block 422 arranged at an angle; the restricted open state is that the other end of the swing arm 600 abuts against the connection between the first sub-block 421 and the second sub-block 422.
[0050] Reference Figure 3 , Figure 6 and Figure 7As shown, specifically, the first sub-block 421 and the second sub-block 422 are arranged at right angles, and the end of the first sub-block 421 is connected to the end of the second sub-block 422. That is, the limiting block 420 is arranged in an L-shape. In the restricted open state, when the door leaf 200 is opened to a certain extent relative to the door frame 100, the other end of the swing arm 600 can slide into the limiting groove 500, and the other end of the swing arm 600 abuts against the connection between the first sub-block 421 and the second sub-block 422. That is, the other end of the swing arm 600 is hooked by the corner of the limiting block 420, thereby limiting the swing arm 600. Thus, the two ends of the swing arm 600 are connected to the door leaf 200 and the door frame 100 respectively. Under the limiting effect of the swing arm 600, the opening angle of the door leaf 200 relative to the door frame 100 is limited, which can effectively prevent criminals from outside from entering the room when the user opens the door.
[0051] Reference Figure 3 , Figure 6 and Figure 7 As shown, it can be understood that the first driver 410 is a lead screw motor, which includes a motor body, a lead screw, a slider, and a guide. The motor body has a built-in stator winding and a rotor for outputting rotational power. The lead screw is axially fixed to the output shaft of the motor body. The surface of the lead screw is machined with a helical thread groove. The slider is provided with a threaded hole for threaded connection with the lead screw, thereby converting the rotational motion of the lead screw into linear motion. The guide is used to limit the circumferential rotation of the slider, thereby ensuring its axial directional movement.
[0052] Reference Figure 3 , Figure 6 and Figure 7 As shown, the motor body can drive the slider to rise and fall along the guide by rotating forward or in reverse. The upper end of the slider is fixedly connected to the limit block 420, thereby driving the limit block 420 to rise and fall along the first through hole 340.
[0053] Reference Figure 4 , Figure 6 and Figure 7 As shown, when the lead screw motor drives the limiting block 420 to move downward, the upper end of the limiting block 420 can move to a position below or flush with the bottom wall of the first connecting seat 300, thereby eliminating the limiting effect of the limiting block 420 on the other end of the swing arm 600, so that the other end of the swing arm 600 can be separated from the limiting component 400 and the first connecting seat 300, and the entrance door can be switched to the fully open state.
[0054] It should be understood that in some other embodiments, the first driver 410 is connected to the upper end of the first connecting seat 300, and the limiting block 420 is located above the bottom wall of the first connecting seat 300. The first driver 410 can drive the limiting block 420 closer to the bottom wall of the first connecting seat 300, and make the lower end of the limiting block 420 abut against the bottom wall of the first connecting seat 300, thereby jointly defining the limiting groove 500 to achieve the limiting effect on the swing arm 600. The first driver 410 can drive the limiting block 420 away from the first connecting seat 300, thereby making the lower end of the limiting block 420 separate from the bottom wall of the first connecting seat 300, thereby splitting the limiting groove 500, so that the swing arm 600 can disengage from the gap between the limiting block 420 and the first connecting seat 300, thereby realizing the separation of the swing arm 600 from the limiting component 400 and the first connecting seat 300, thereby allowing the entrance door to switch to the fully open state.
[0055] It should be understood that in some other embodiments, the first driver 410 can drive the limiting block 420 to rotate about an vertically extending axis. The first driver 410 can drive the limiting block 420 to rotate relative to the first connecting seat 300 and rotate to the upper end of the bottom wall of the first connecting seat 300, so that the peripheral wall of the limiting block 420 and the bottom wall of the first connecting seat 300 together define the limiting groove 500. The first driver 410 can also drive the limiting block 420 to rotate away from the first connecting seat 300, thereby separating the limiting block 420 from the first connecting seat 300, thereby splitting the limiting groove 500, so that the swing arm 600 can disengage from the gap between the limiting block 420 and the first connecting seat 300, thereby realizing the separation of the swing arm 600 from the limiting component 400 and the first connecting seat 300, thereby switching the entrance door to the fully open state.
[0056] It should be understood that in some other embodiments, the first actuator 410 may be a linear drive mechanism such as an electric actuator, a hydraulic actuator, a pneumatic actuator, or a crank-connecting rod mechanism.
[0057] Reference Figure 4 , Figure 6 and Figure 7 As shown, it can be understood that in this embodiment, the other end of the swing arm 600 is connected to a pulley 610. The pulley 610 is configured to rotate about an axis extending vertically. By rotating the pulley 610, the problem of the other end of the swing arm 600 getting stuck during the sliding process in the limiting groove 500 can be reduced, and the smoothness of the other end of the swing arm 600 sliding in the limiting groove 500 can be improved.
[0058] Reference Figure 4 , Figure 6 and Figure 7As shown, it can be understood that the first connecting seat 300 is provided with a sliding groove 330. When the door leaf 200 opens and closes relative to the door frame 100, the other end of the swing arm 600 is configured to exit or enter the sliding groove 330.
[0059] Reference Figure 4 , Figure 6 and Figure 7 As shown, when the entrance door is in a restricted opening state, the sliding groove 330 and the limiting groove 500 are arranged sequentially from the side of the door leaf 200 near the lock towards the hinge.
[0060] Reference Figure 4 , Figure 6 and Figure 7 As shown, when the door leaf 200 is closed relative to the door frame 100, the other end of the swing arm 600 can gradually slide into the sliding groove 330. When the door leaf 200 is open relative to the door frame 100, the other end of the swing arm 600 can gradually exit the sliding groove 330. If the entrance door is in a restricted opening state, the other end of the swing arm 600 can slide into the limiting groove 500 after exiting the sliding groove 330. Through the abutment of the pulley 610 by the peripheral wall of the limiting groove 500, the other end of the swing arm 600 is hooked with the limiting block 420, thereby connecting the swing arm 600 between the door leaf 200 and the door frame 100, thereby limiting the opening angle of the door leaf 200 relative to the door frame 100.
[0061] Reference Figure 4 , Figure 6 and Figure 7 As shown, it is understandable that when closing the door casually or in a strong wind, the door leaf 200 will quickly hit the door frame 100 due to the inertia of the door leaf 200, producing a lot of noise and easily causing injury to people located at the doorway, posing a certain safety hazard. Long-term impacts may also lead to problems such as the door frame 100 becoming loose.
[0062] Reference Figure 4 , Figure 6 and Figure 7 As shown, the entrance door also includes a spring 720 and a second connecting seat 710. The second connecting seat 710 is connected to the door frame 100. One end of the swing arm 600 is rotatably connected to the second connecting seat 710. One end of the spring 720 is rotatably connected to the second connecting seat 710, and the other end is rotatably connected to the swing arm 600.
[0063] Reference Figure 4 , Figure 6 and Figure 7As shown, when the spring 720 is located on the side of the swing arm 600 close to the door frame 100, if the door leaf 200 moves rapidly toward the door frame 100 under the action of external force, the pulley 610 connected to the other end of the swing arm 600 can abut against the side wall of the first connecting seat 300. Under the action of the spring 720, it can play a buffering role, thereby slowing down the rotation speed of the door leaf 200. The pulley 610 slides along the side wall of the first connecting seat 300 and can gradually slide into the sliding groove 330. Through the mutual abutment between the pulley 610 and the sliding groove 330, the swing arm 600 is driven to rotate according to the preset path and angle.
[0064] Reference Figure 4 , Figure 6 and Figure 7 As shown, it can be understood that the lower end of the swing arm 600 is provided with a clearance groove 620, and the spring 720 is located at the same height as the clearance groove 620, and the spring 720 can move in and out of the clearance groove 620.
[0065] Reference Figure 4 , Figure 6 and Figure 7 As shown, the connection point between the swing arm 600 and the second connecting seat 710 is different from the connection point between the spring 720 and the second connecting seat 710. The connection point between the spring 720 and the second connecting seat 710 is located on the swing path of the swing arm 600, so that when the swing arm 600 rotates, the relative position relationship between the swing arm 600 and the spring 720 can be changed, so that the spring 720 can enter and exit the clearance groove 620, and the spring 720 can rotate to the side of the swing arm 600 closer to the door frame 100 or the side of the swing arm 600 farther away from the door frame 100.
[0066] Reference Figure 4 , Figure 6 and Figure 7 As shown, specifically, when the swing arm 600 swings to the connection point between the spring 720 and the second connecting seat 710, the length direction of the spring 720 is consistent with the length direction of the swing arm 600. At this time, the spring 720 is at a dead point, and the spring 720 does not drive the swing arm 600 to move closer to or further away from the door leaf 200.
[0067] Reference Figure 4 , Figure 6 and Figure 7 As shown, when the spring 720 is located on the side of the swing arm 600 close to the door frame 100, the spring 720 is used to drive the swing arm 600 away from the door frame 100. When the spring 720 is located on the side of the swing arm 600 away from the door frame 100, the spring 720 is used to drive the swing arm 600 closer to the door frame 100.
[0068] Reference Figure 4 , Figure 6 and Figure 7As shown, when the door leaf 200 is closed relative to the door frame 100, the pulley 610 connected to the other end of the swing arm 600 can abut against the first connecting seat 300. At this time, the spring 720 is located on the side of the swing arm 600 closer to the door frame 100. The spring 720 is compressed and has a tendency to rebound, thereby achieving buffering of the door leaf 200. When the door leaf 200 compresses the spring 720 and passes the dead point of the spring 720, the spring 720 is located on the side of the swing arm 600 away from the door frame 100. The spring 720 rebounds, thereby driving the pulley 610 to enter the sliding groove 330, that is, assisting in the closing of the door leaf 200 and the door frame 100.
[0069] Reference Figure 5 , Figure 6 and Figure 7 As shown, it can be understood that, specifically, the spring 720 can be a nitrogen spring 720. The nitrogen spring 720 achieves nonlinear buffering through the compressibility of high-pressure nitrogen. In the initial compression stage, the gas pressure changes slowly, which can effectively absorb impact energy. In the subsequent compression stage, the pressure gradually increases, avoiding sudden changes in peak force and providing a gentler buffering effect. The nitrogen spring 720 absorbs energy through the isentropic process of gas compression and expansion, resulting in low energy loss.
[0070] It should be understood that in some other embodiments, the spring 720 may be a steel spring 720, which, through its own shape, provides cushioning for the door leaf 200.
[0071] Reference Figure 5 , Figure 6 and Figure 7 As shown, it can be understood that in this embodiment, the entrance door also includes a protective cover 800, which is connected to the first connecting seat 300. The protective cover 800 is provided with a receiving groove 810, and the swing arm 600, spring 720 and second connecting seat 710 can enter and exit the receiving groove 810.
[0072] Reference Figure 5 , Figure 6 and Figure 7 As shown, the protective cover 800 has a receiving groove 810 with an opening facing the door frame 100. When the door leaf 200 approaches the door frame 100, the swing arm 600, spring 720, and second connecting seat 710 can enter the receiving groove 810. That is, the receiving groove 810 can provide receiving space for the swing arm 600, spring 720, and second connecting seat 710, thereby avoiding the problem of collision between the swing arm 600, spring 720, and second connecting seat 710 when the door leaf 200 is closed. When the door leaf 200 moves away from the door frame 100, the protective cover 800 rotates with the door leaf 200, allowing the swing arm 600, spring 720, and second connecting seat 710 to exit the receiving groove 810, thereby avoiding the problem of the protective cover 800 obstructing the rotation of the swing arm 600 and spring 720.
[0073] Reference Figure 5 , Figure 6 and Figure 7 As shown, it can be understood that the protective cover 800 is provided with a second through hole 820, and the first connecting seat 300 is provided through the second through hole 820. The first connecting seat 300 includes a first stop 310 and a second stop 320 that are parallel to each other. The wall of the receiving groove 810, together with the first stop 310 and the second stop 320, defines the sliding groove 330.
[0074] Reference Figure 5 , Figure 6 and Figure 7 As shown, the length direction of the first stop 310 and the second stop 320 is consistent with the width direction of the door leaf 200. The protective cover 800 includes a base plate and a surrounding plate. The surrounding plate is connected to the edge of the base plate, thereby forming an accommodating groove 810 with an opening facing the door frame 100. When the first connecting seat 300 passes through the second through hole 820, the surrounding plate can abut against the side of the first stop 310 and the second stop 320 near the lock of the door leaf 200, so that the surrounding plate, the first stop 310 and the second stop 320 together form a sliding groove 330.
[0075] Reference Figure 4 , Figure 6 and Figure 7 As shown, specifically, the length of the first stop 310 is greater than that of the second stop 320. When the door 200 is closed relative to the door frame 100, the pulley 610 can first abut against the wall of the first stop 310. With the buffering of the spring 720, the rotation speed of the door 200 can be reduced, and the pulley 610 can be inserted into the sliding groove 330. The first stop 310 and the second stop 320 can restrict the sliding direction of the pulley 610, thereby guiding and limiting the pulley 610 to enter and exit the sliding groove 330.
[0076] The first stop block 310, together with the bottom wall of the limit block 420 and the first connecting seat 300, can define the limit groove 500, thereby limiting the other end of the swing arm 600.
[0077] Reference Figure 4 , Figure 6 and Figure 7 As shown, it can be understood that the first connecting seat 300 is connected to the first mounting plate 910. The first mounting plate 910 is provided with multiple first mounting holes. With the help of the external threaded connector, after the external threaded connector passes through the first mounting holes, the first mounting plate 910 can be fixed to the upper end of the door leaf 200, thereby realizing the fixed connection between the first connecting seat 300 and the protective cover 800 and the door leaf 200.
[0078] Reference , and As shown, the second connecting seat 710 is connected to the second mounting plate 920. The second mounting plate 920 has multiple second mounting holes. With the help of the external threaded connector, the external threaded connector passes through the second mounting holes and can fix the second mounting plate 920 to the upper end of the door frame 100, thereby realizing the fixed connection between the second connecting seat 710 and the door frame 100.
[0079] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.
Claims
1. An entrance door, comprising a door leaf (200) and a door frame (100), wherein the side of the door leaf (200) is rotatably connected to the door frame (100), characterized in that, The entrance door also includes: The first connecting seat (300) is connected to the door leaf (200); The limiting component (400) includes a limiting block (420) and a first driver (410). The first driver (410) is connected to the first connector (300). The first driver (410) is connected to the limiting block (420) to drive the limiting block (420) to move closer to or further away from the first connector (300). When the limiting block (420) moves closer to the first connector (300), the limiting block (420) and the first connector (300) can jointly define a limiting groove (500). The swing arm (600) is rotatably connected at one end to the door frame (100) and can slide within the limiting groove (500) at the other end; The entrance door has a limited opening state and a fully open state. In the limited opening state, the limiting block (420) is close to the first connecting seat (300), and the other end of the swing arm (600) abuts against the wall of the limiting groove (500) to limit the opening angle of the door leaf (200) relative to the door frame (100). In the fully open state, the limiting block (420) is far away from the first connecting seat (300), and the swing arm (600) is separated from the limiting component (400) and the first connecting seat (300).
2. The entrance door according to claim 1, characterized in that: The bottom wall of the first connecting seat (300) is provided with a first through hole (340). The first driver (410) is connected to the lower end of the first connecting seat (300). The first driver (410) is used to drive the limiting block (420) to move up and down along the first through hole (340). The peripheral wall of the limiting block (420) and the bottom wall of the first connecting seat (300) can jointly define the limiting groove (500).
3. The entrance door according to claim 1, characterized in that: The limiting block (420) includes a first sub-block (421) and a second sub-block (422) connected to each other, with the first sub-block (421) and the second sub-block (422) arranged at an angle; the restricted open state is when the other end of the swing arm (600) abuts against the connection between the first sub-block (421) and the second sub-block (422).
4. The entrance door according to claim 1, characterized in that: The other end of the swing arm (600) is connected to a pulley (610), which is configured to rotate about an vertically extending axis.
5. The entrance door according to claim 1, characterized in that: The first connecting seat (300) is provided with a sliding groove (330). When the door leaf (200) opens and closes relative to the door frame (100), the other end of the swing arm (600) is configured to exit or enter the sliding groove (330).
6. The entrance door according to claim 5, characterized in that: It also includes a spring (720) and a second connecting seat (710), the second connecting seat (710) being connected to the door frame (100), one end of the swing arm (600) being rotatably connected to the second connecting seat (710), one end of the spring (720) being rotatably connected to the second connecting seat (710), and the other end being rotatably connected to the swing arm (600).
7. The entrance door according to claim 6, characterized in that: The rotational connection point between the spring (720) and the second connecting seat (710) is located on the swing path of the swing arm (600); when the spring (720) is located on the side of the swing arm (600) close to the door frame (100), the spring (720) is used to drive the swing arm (600) away from the door frame (100); when the spring (720) is located on the side of the swing arm (600) away from the door frame (100), the spring (720) is used to drive the swing arm (600) closer to the door frame (100).
8. The entrance door according to claim 6, characterized in that: It also includes a protective cover (800), which is connected to the first connecting seat (300). The protective cover (800) is provided with a receiving groove (810), and the swing arm (600), the spring (720) and the second connecting seat (710) can enter and exit the receiving groove (810).
9. The entrance door according to claim 8, characterized in that: The protective cover (800) is provided with a second through hole (820), and the first connecting seat (300) passes through the second through hole (820). The first connecting seat (300) includes a first stop (310) and a second stop (320) that are parallel to each other. The wall of the receiving groove (810) together with the first stop (310) and the second stop (320) defines the sliding groove (330).
10. The entrance door according to claim 6, characterized in that: The first connecting seat (300) is connected to the upper end of the door leaf (200), and the second connecting seat (710) is connected to the upper end of the door frame (100).