Non-magnetic self-locking door stopper
By introducing a combination structure of guides, buffers, and swing arms into the door catch, the problems of high noise in magnetic door catches and poor buffering in non-magnetic door catches are solved, achieving improved quietness and stability of non-magnetic buffer door catches.
Patent Information
- Application Number
- CN202422809365.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Priority Date
- 2024-10-02
- Filing Date
- 2024-11-19
- Publication Date
- 2025-12-19
- Estimated Expiration
- 2034-11-19
AI Technical Summary
Existing magnetic door catches are prone to making noise during use, and non-magnetic door catches have poor cushioning effect and are easily damaged by wind or excessive force.
A non-magnetic buffer door catch was designed, which uses a combination of internal guides, buffers and swing arms. The buffers absorb the impact force, and the guides drive the swing arms to rotate to achieve locking, reducing noise and improving stability.
This reduces noise during collisions, enhances the stability and safety of the door closer, and prevents damage caused by hard impacts.
Smart Images

Figure CN223689492U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a door stop, in particular to a non-magnetic buffer door stop. BACKGROUND
[0002] Door stop is a commonly used accessory in the door, mainly used for fixing, avoiding closing due to wind blowing or accidental collision and violently hitting the door frame, causing damage to the door frame and door leaf, and the usual practice is that the door leaf and the corresponding wall or ground are respectively provided with door stops. The door stops on the market are mostly divided into magnetic door stops and non-magnetic door stops, the hard collision of the suction rod and the suction seat occurs when the magnetic door stop is used, and a sound is emitted, and the magnetic door stop needs magnetic material, and the magnetic material will rust after being used for a period of time, affecting the aesthetic appearance; the buffer effect of the non-magnetic door stop is relatively poor, and the door stop is easy to collide and be damaged when the wind is strong or the force is too large, so there is a demand for a non-magnetic door stop with less noise when used. UTILITY MODEL CONTENTS
[0003] The utility model aims at overcoming the above-mentioned shortcomings, providing a buffer non-magnetic door stop, the door stop is provided with an internal guide, a buffer body and a swing arm, when the suction rod applies force to the suction seat, the impact force on the suction seat is reduced through the buffer body, and the guide simultaneously pushes the swing arm to lock the suction rod.
[0004] In order to achieve the above-mentioned purpose, the utility model adopts the technical scheme of: a non-magnetic buffer door stop, comprising a suction rod and a suction seat, characterized in that: the suction seat comprises an outer cover and a seat body, the seat body is provided with a swing arm, the swing arm abuts against a guide and a buffer body, the swing arm and the guide are installed on a support, and the buffer body is arranged between the guide and the support, when the swing arm is moved by the suction rod, the buffer body can absorb the impact force of the suction rod on the suction seat, and the guide simultaneously pushes the swing arm to rotate, thereby realizing the locking of the suction rod.
[0005] The swing arm is rotatably installed on the support through a pin shaft, and a U-shaped opening is formed in the swing arm.
[0006] The swing arm is rotatably installed on the support through a pin shaft, and a U-shaped opening is formed in the swing arm.
[0007] The guide comprises a shell, a guide block and a spring, the guide block is internally provided with a cavity structure, and the spring is installed in the cavity structure.
[0008] The shell is provided with a clamping block, the support is provided with a clamping groove corresponding to the clamping block, the shell is fixedly installed on the support through the clamping groove and the pin shaft, the guide block is installed in the shell, one end of the spring abuts against the shell, and the other end is always pressed against the guide block, the guide block abuts against the first pulley, thereby pushing the swing arm to rotate along the pin shaft, so as to realize the locking of the suction rod.
[0009] The buffer body is a damper, which is installed on the support, one end of the damper abuts against the seat body, and the other end of the damper abuts against the second pulley, the swing arm is in extrusion contact with the damper through the second pulley to generate a buffering force.
[0010] The rod head is rotationally installed on the suction rod through a pin shaft, and the outer cover is provided with a clearance groove for the suction rod to pass through.
[0011] The utility model has the advantages that when the suction rod collides with the suction seat, the lower side of the swing arm abuts against the buffer body, buffering effect can be achieved under the action of the oil cylinder damper in the buffer body, noise of the door leaf during use is reduced, the right side of the swing arm abuts against the guide block, the spring extrudes the guide block to push the swing arm to rotate, thereby locking the suction rod, and the utility model has the characteristics of reasonable structure, good stability, safety and silence. BRIEF DESCRIPTION OF DRAWINGS
[0012] Figure 1 It is a perspective view of the appearance of the door stopper of the utility model.
[0013] Figure 2 It is a perspective view of the inside of the door stopper of the utility model.
[0014] Figure 3 It is a schematic view of the components in the seat body of the utility model.
[0015] Figure 4 It is a schematic view of the components in the seat body of the utility model.
[0016] Figure 5 It is an exploded view of the inside of the seat body of the utility model.
[0017] Figure 6 It is a schematic view of the locking state of the seat body of the utility model.
[0018] Figure 7 It is a schematic view of the unlocking state of the seat body of the utility model. DETAILED DESCRIPTION
[0019] The utility model discloses a non-magnetic buffer door stopper, which comprises a suction rod 1 and a suction seat 2, the suction seat comprises an outer cover 3 and a seat body 4, the seat body 4 is provided with a swing arm 41, the swing arm abuts against a guide piece 42 and a buffer body 43, the swing arm and the guide piece are installed on a support 40, and the buffer body is arranged between the guide piece and the support, when the swing arm is moved by the suction rod, the buffer body can absorb the impact force of the suction rod on the suction seat, and the guide block simultaneously pushes the swing arm to rotate, thereby realizing locking of the suction rod.
[0020] The swing arm 41 is rotationally installed on the support 40 through a pin shaft 401, and a U-shaped opening 411 is formed in the swing arm 41, and the U-shaped opening is clamped on the rod head of the suction rod in the locking state.
[0021] The swing arm 41 is provided with a first pulley 412, which is connected by a pin shaft and can rotate, and a spring pressing guide block 422 is always in abutment with the first pulley 412, and the first pulley rotates along the edge of the guide block. An arc-shaped portion on the lower side of the swing arm is provided with a second pulley 413, which is rotatably installed, and a damper pushing block 431 is always in abutment with the second pulley 413, and the second pulley rotates along the edge of the pushing block.
[0022] The guide 42 comprises a housing 421, a guide block 422 and a spring 423. The guide block 422 is internally hollow, and the spring is installed in the hollow structure.
[0023] The housing 421 is provided with a clamping block 421A, and the support 40 is provided with a clamping groove corresponding to the clamping block 421A. The housing is fixedly installed on the support by the clamping groove and a pin shaft (not shown in the figure). The guide block 422 is installed in the housing 421 and can slide in the housing. One end of the spring 423 is in abutment with the housing, and the other end is always pressed on the guide block. The guide block abuts against the first pulley 412 to push the swing arm to rotate along the pin shaft 401, so as to lock the suction rod.
[0024] The buffer body 43 is a damper, which is installed on the support 40. One end of the buffer body 43 abuts against the seat, and the other end abuts against the second pulley 413. The swing arm is in pressing contact with the damper through the second pulley to generate a buffering force.
[0025] The suction rod 1 is provided with a rod head 11, which is rotatably installed on the suction rod by a pin shaft. The outer cover 3 is provided with an empty slot for the suction rod to pass through. In the locked state, the empty slot extends into the position of the rod head to lock.
[0026] Working principle: when the suction rod collides with the swing arm, the swing arm rotates and simultaneously pushes the pulley on the lower arc-shaped portion to press the buffer body. The oil cylinder resistor in the buffer body is pressed and simultaneously absorbs part of the impact force, so as to reduce noise. The swing arm is pushed by the guide block to rotate counterclockwise under the elastic force of the spring (the spring is in a stretched state at this time). At this time, the U-shaped mouth 411 of the swing arm clamps the rod head 11 of the suction rod, so as to lock the suction rod and lock the door. When unlocking is needed, the door is pulled and the suction rod is pulled outwards. The suction rod drives the swing arm to rotate clockwise. The pulley on the right arc-shaped portion of the swing arm presses the guide block. At this time, the spring is in a compressed state. At the same time, the lower arc-shaped portion of the swing arm rotates clockwise, and the damper is stretched and reset. At this time, the U-shaped mouth of the swing arm is separated from the suction rod, so as to release the locking. Thus, the door leaf can be repeatedly locked and unlocked.
[0027] The basic principle and main features of the present application and the advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application.
Claims
1. A magnetically non-activated self-locking door closer comprising a closer stem (1) and a closer base (2), characterized in that: The suction base comprises an outer cover (3) and a base body (4), the base body (4) is provided with a swing arm (41), the swing arm abuts against a guide piece (42) and a buffer body (43), the swing arm and the guide piece are installed on a support (40), and the buffer body is arranged between the guide piece and the support; when the suction rod pushes the swing arm to move, the buffer body can absorb the impact force of the suction rod on the suction base, and the guide piece simultaneously pushes the swing arm to rotate, so that the suction rod is locked.
2. A magnetically neutral self-latching door catch according to claim 1, characterized in that: The swing arm (41) is rotatably installed on the support (40) through a pin shaft (401), and a U-shaped opening (411) is formed in the swing arm (41).
3. A magnetically non-receptive self-latching door catch according to claim 2, characterised in that: The swing arm (41) is rotatably installed on the support (40) through a pin shaft (401), and a U-shaped opening (411) is formed in the swing arm (41).
4. A magnetically neutral self-latching door catch according to claim 1, characterized in that: The guide piece (42) comprises a housing (421), a guide block (422) and a spring (423), the guide block (422) is in a hollow structure, and the spring is installed in the hollow structure.
5. A magnetically non-receptive self-latching door catch according to claim 4, characterised in that: The housing (421) is provided with a clamping block (421A), the support (40) is provided with a clamping groove corresponding to the clamping block, the housing is fixedly installed on the support through the clamping groove and the pin shaft, the guide block (422) is installed in the housing (421), one end of the spring (423) abuts against the housing, and the other end is always pressed against the guide block, the guide block abuts against the first pulley (412), so that the swing arm is pushed to rotate along the pin shaft (401), and the suction rod is locked.
6. A magnetically neutral self-latching door catch according to claim 1, wherein: The buffer body (43) is a damper, which is installed on the support (40), one end of the buffer body abuts against the base body, and the other end abuts against the second pulley (413), the swing arm is in pressing contact with the damper through the second pulley, so that a buffer force is generated.
7. A magnetically neutral self-latching door catch according to claim 1, wherein: The suction rod (1) is provided with a rod head (11), the rod head is rotatably installed on the suction rod through a pin shaft, and the outer cover (3) is provided with an empty slot through which the suction rod passes.