Clamping type non-magnetic door stopper

Abstract

The utility model relates to the technical field of door stoppers, in particular to a clamping type non-magnetic door stopper which comprises a door stopper seat fixed on a wall surface and a door stopper column fixed on a door leaf, a convex block is arranged on the door stopper column, the door stopper seat comprises a shell, a clamping piece used for being clamped with the convex block is rotatably connected in the shell, and the clamping piece is arranged on the door stopper column. A driving device for driving the clamping piece to rotate is also arranged in the shell; and the driving device drives the clamping piece to be separated from or clamped with the convex block. Compared with the prior art, the door stopper column and the door stopper base are fixed on the door leaf and the wall body, so that the problems that the door stopper base is fixed on the ground, the internal structure is complex, water and dust easily enter the door stopper base after long-term use, and the door stopper base cannot be damaged are solved. And the technical problems of rusting, damage, unsmooth movement and high rejection rate of parts in the door stopper base are solved.

Description

Technical Field

[0001] The utility model patent relates to the field of door catch technology, specifically a snap-on non-magnetic door catch. Background Art

[0002] Door suction, commonly known as door bumper, is a door leaf positioning device. The door suction includes a door suction seat and a door suction pile. The door suction pile is fixed on the door leaf, and the door suction seat is fixed on the ground. When the door leaf is opened, the door suction pile is limited when it contacts the door suction seat, thereby limiting the door leaf and preventing it from rotating or closing freely. Most of the current door suctions are magnetic. Both the door suction pile and the door suction seat are magnets. When the door suction pile contacts the door suction seat, they are limited by magnetic adsorption. However, the magnetic material in the magnetic door suction is easy to demagnetize after long-term use, and the suction force is not large if it only relies on magnetic attraction. When the door leaf is in a windy environment (such as outdoors or indoors with a strong draft), the door suction column is easy to separate from the door suction seat under the action of wind, and the fixing effect is not ideal.

[0003] In order to solve the defects of the magnetic door stopper, there is also a technology in the prior art that designs the door stopper as a card-connected limited door stopper. The patent with publication number CN202467420U discloses an upright non-magnetic rotating door stopper, which is a classic card-connected limited door stopper. It is composed of an octagonal cylindrical groove base, a perforated circular plate, an open circular plate, a pushing slider, a toggle block and an open cover plate to form a door stopper base, and a door stopper pile is assembled at the rear end of the door leaf. Under the mutual cooperation of the pushing slider and the toggle block with a rotating circular gear, the octagonal cylindrical groove base rotates regularly to close or release the door stopper pile, thereby realizing the fixing and opening of the door leaf, which is very convenient. This card-connected door stopper does not use magnets for fixing, does not have the defect of demagnetization, and has a good fixing effect. However, it is found in actual use that the door stopper base of this door stopper is fixed to the ground, and the internal structure is complex. After long-term use, water and dust are easy to enter the door stopper base, resulting in rust, damage, poor movement and high scrap rate of parts inside the door stopper base. Utility Model Content

[0004] The utility model is intended to provide a snap-on non-magnetic door catch, which is mainly used to solve the technical problems in the prior art that the door catch base is fixed on the ground and has a complex internal structure. After long-term use, water and dust are easily allowed to enter the door catch base, causing the internal parts of the door catch base to rust, be damaged, move unsmoothly, and have a high scrap rate.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0006] A snap-on non-magnetic door catch comprises a door catch seat fixed on a wall and a door catch column fixed on a door leaf, wherein the door catch column is provided with a protrusion, and the door catch seat comprises a shell, wherein a blocking member for engaging with the protrusion is rotatably connected inside the shell, and a driving device for driving the blocking member to rotate is also provided inside the shell, and the driving device drives the blocking member to disengage from or engage with the protrusion.

[0007] Preferably, the driving device includes a rotating drum which is coaxially arranged with the shell and rotatably connected, the inner surface of the rotating drum is provided with slide grooves which are distributed in a wave shape along the axial centerline of the rotating drum and are connected end to end, a driving core is provided inside the rotating drum, a sliding block is fixed on the circumference of the driving core, the sliding block is inserted into the sliding groove and is slidably connected to the sliding groove; the end of the driving core facing the opening of the rotating drum can contact the end of the door suction column.

[0008] Preferably, the blocking member includes two blocks, one end of which is fixedly connected to an end of the rotating drum close to the door suction column, and the two blocks are equidistantly distributed around the axis of the rotating drum; one end of the block away from the rotating drum is radially bent toward the axis of the rotating drum to form a hook portion that can cooperate with the protrusion, and when the protrusion contacts the hook portion, the protrusion is located between the hook portion and the driving core.

[0009] Preferably, a return spring is fixed to one end of the driving core, and one end of the return spring away from the driving core is fixedly connected to the bottom of the shell.

[0010] Preferably, the chute is composed of 4 groups of unit chute with V-shaped extension trajectories, which are connected end to end and are equidistant in a circular array. The unit chute includes two inclined grooves with intersecting center lines, and the center lines of the two inclined grooves are non-parallel to the axis of the drum.

[0011] Preferably, the angle between the two ends of the block and the connecting line of the rotating drum axis is ≤90°; the protrusions on the door stopper column are in two groups and are arranged in a circular array around the axis of the door stopper column and are equidistantly arranged, and the width of the protrusions is less than or equal to the width of the block.

[0012] Preferably, the two groove edges of the slide groove have corners at the intersection of the two inclined grooves and the intersection of the two unit slide grooves, and the corresponding corners of the two edges are staggered, so that when the slider slides in the slide groove, it always tends to slide into the next inclined groove.

[0013] Preferably, the end of the door stopper column in contact with the driving core is processed into an arc surface, and the end of the driving core close to the door stopper column is coated with a rubber layer.

[0014] Preferably, a wedge-shaped convex ring is arranged around the outside of the rotating drum, one end of the shell is open and the open end is bent toward the inner wall to form a limiting portion, the wedge-shaped convex ring is located inside the shell and contacts the limiting portion; a vertical groove is provided on the limiting portion for the limiting portion to form an open loop and elastically deform.

[0015] Preferably, a square column is fixed to the bottom of the housing, and a square groove that is in clearance fit with the square column and can accommodate the square column is formed at the bottom of the driving core. One end of the square column close to the door suction column is always inserted into the square groove.

[0016] Preferably, an annular convex rib is provided at the bottom of the rotating cylinder, and the surface of the convex rib close to the bottom of the housing is processed into an arc surface; the convex rib is in contact with and slidably connected to the inner bottom of the housing.

[0017] The beneficial effects of this solution are as follows:

[0018] 1. Compared with the existing snap-on door suction, the door suction seat in this solution is located on the wall, and the door suction column that cooperates with the door suction seat is located on the door leaf. During use, sewage and dust on the ground are prevented from entering the door suction seat, damaging the internal parts of the door suction seat. In summary, by changing the installation position of the device, this solution solves the technical problems that the door suction base is fixed on the ground, has a complex internal structure, and is prone to water and dust entering the door suction base during long-term use, resulting in rust, damage, unsmooth movement, and high scrap rate of the internal components of the door suction base.

[0019] 2. In this solution, the driving component drives the blocking component to engage with or disengage from the convex block. When it is necessary to open and fix the door, only need to drive the blocking component to engage with the convex block. When it is necessary to close the door leaf, only need to drive the blocking component to disengage from the convex block through the driving component.

[0020] 3. The working principle of the driving component is mainly that the door suction column presses the driving core, causing the slider on the driving core to slide in the sliding groove. After the driving core is pressed down, it is reset by the reset spring. One press and reset can make the slider slide across a unit sliding groove. In this solution, there are four groups of unit sliding grooves. When the slider slides across a unit sliding groove, the rotating cylinder can be driven to rotate 90°, thereby driving the hook part to rotate 90° relative to the convex block, so as to intermittently release or hook the convex block; at the same time, during the process of pressing down the driving core, the square groove is always sleeved on the square column to prevent the driving core from rotating, and completely converts the linear motion of the driving core into the rotational motion of the rotating cylinder.

[0021] 4. Compared with the magnetic door suction, the door suction in this solution abandons the magnetic fixing method and adopts a pure mechanical snap-on fixing to fix the door suction column and the door suction seat. The two are fixed more stably, and in strong winds, the door suction column and the door suction seat are not easily separated. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a three-dimensional structure diagram of a snap-on non-magnetic door suction of the utility model patent;

[0023] Figure 2 is a right view of a snap-on non-magnetic door suction of the utility model patent;

[0024] Figure 3 A cross-sectional view taken along line A-A of a snap-on non-magnetic door stopper of the present utility model patent Figure 2 ;

[0025] Figure 4 An exploded view of a snap-on non-magnetic door stopper of the present utility model patent Figure 1 ;

[0026] Figure 5 An exploded view of a snap-on non-magnetic door stopper of the present utility model patent Figure 2 ;

[0027] Figure 6 A three-dimensional structural schematic diagram of a rotating cylinder of a snap-on non-magnetic door stopper of the present utility model patent;

[0028] Figure 7 A partial cross-sectional view of a rotating cylinder of a snap-on non-magnetic door stopper of the present utility model patent;

[0029] Figure 8 An unfolded schematic diagram of a sliding groove of a snap-on non-magnetic door stopper of the present utility model patent.

[0030] Reference numerals in the drawings of the specification include: housing 1, square column 11, limiting part 12, vertical groove 121, rotating cylinder 2, clamping block 21, hook part 211, sliding groove 22, unit sliding groove 221, wedge-shaped convex ring 23, rotating core 3, square groove 31, sliding block 32, door stopper column 4, convex block 41, return spring 5, convex rib 6. Detailed implementation manners

[0031] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0032] As Figure 1 shown, a snap-on non-magnetic door stopper includes a door stopper base fixed to the wall surface and a door stopper column 4 fixed to the door leaf. When the door leaf rotates, the door stopper column 4 just cooperates with the door stopper base to fix the door stopper column 4, thereby fixing the door leaf to the wall surface.

[0033] As Figure 4 shown, two groups of convex blocks 41 are provided on the door stopper column 4, and are circumferentially arrayed and equidistantly arranged around the axis of the door stopper column 4. One end of the door stopper column 4 in contact with the driving core is processed into an arc surface, so that the arc-processed end of the door stopper column 4 is more easily inserted into the door stopper base;

[0034] As Figures 1-4As shown in the figure, the door stopper base includes a cylindrical shell 1. There is a mounting plate at the tail of the shell 1, and the shell 1 is mounted on the wall through the mounting plate. The shell 1 is made of plastic with a certain elastic deformation ability. A rotating cylinder 2 coaxial with the shell 1 is rotatably connected inside the shell 1. Specifically, a wedge-shaped convex ring 23 is wound around the outside of the rotating cylinder 2. One end of the shell 1 is open, and the open end is bent towards the inner wall to form a limiting part 12. The wedge-shaped convex ring 23 is located inside the shell 1 and contacts the limiting part 12. A vertical groove 121 is provided on the limiting part 12 for the limiting part 12 to form an open ring and elastically deform. When the rotating cylinder 2 needs to be assembled into the inside of the shell 1, only need to press the bottom of the shell 1 into the shell 1. The vertical groove 121 of the limiting part 12 of the shell 1 elastically deforms under the extrusion of the wedge-shaped convex ring 23 until the wedge-shaped convex ring 23 is completely stuck into the inside of the shell 1. The limiting part 12 restores the deformation and blocks the wedge-shaped convex ring 23 to prevent the rotating cylinder 2 from coming out, and the rotating cylinder 2 can still rotate in the shell 1.

[0035] As Figures 5-8 shown in the figure, the rotating cylinder 2 is also made of plastic with a certain elastic deformation ability, and an opening is also provided at one end of the rotating cylinder 2 close to the shell 1 for the bottom of the rotating cylinder 2 to deform. A chute 22 is provided on the inner surface of the rotating cylinder 2, which is distributed in a wavy shape along the axis of the rotating cylinder 2 and is connected end to end. The position where the vertical groove 121 is closest to the chute 22 is communicated.

[0036] As Figure 8 shown in the figure, the chute 22 is composed of four groups of unit chutes 221 with a V-shaped extension trajectory connected end to end and equally spaced in a circumferential array. The unit chute 221 includes two inclined chutes with intersecting centerlines, and the projections of the centerlines of both inclined chutes on the axis of the rotating cylinder 2 are not parallel to the axis of the rotating cylinder 2. The optimal angle between the centerlines of the two inclined chutes is 90°, and the optimal angle between the projection of the centerline of one of the inclined chutes on the axis of the rotating cylinder 2 and the axis of the rotating cylinder 2 is 10°.

[0037] As Figure 4 、 Figure 5 shown in the figure, a driving core is arranged inside the rotating cylinder 2. A slider 32 is fixed on the peripheral surface of the driving core. The rotating core 3 is inserted into the rotating cylinder 2 from one end of the rotating cylinder 2 close to the shell 1. After the rotating cylinder 2 deforms at the vertical groove, the slider 32 is stuck into the chute 22 and is slidably connected with the chute 22. One end of the driving core facing the opening of the rotating cylinder 2 is coated with rubber, and one end of the rubber layer can contact the end of the door stopper column 4. When the door stopper column 4 collides with the rubber layer, the rubber layer can play a role in noise reduction. Two clamping blocks 21 are equally spaced around the axis of the rotating cylinder 2 at one end of the rotating cylinder 2 close to the door stopper column 4. One end of the clamping block 21 away from the rotating cylinder 2 is radially bent towards the axis of the rotating cylinder 2 to form a hook part 211 that can cooperate with the convex block 41. When the convex block 41 on the door stopper column 4 contacts the hook part 211, the convex block 41 is located between the hook part 211 and the driving core.

[0038] AsFigure 7 , Figure 8 As shown in Figure 8 , both groove edges of the sliding groove 22 have corners at the intersection of the two inclined grooves and at the intersection of the two unit sliding grooves 221, and the corresponding corners of the two edges are staggeredly arranged, so that when the slider 32 slides in the sliding groove 22, it always tends to slide into the next inclined groove.

[0039] The included angle between the connection lines of the two ends of the clamping block 21 and the axis of the rotating cylinder 2 is equal to 90°; there are two groups of bumps 41 on the door suction column 4, which are circumferentially arrayed and equidistantly arranged around the axis of the door suction column 4. The width of the bump 41 is smaller than the width of the clamping block 21, so that the bump 41 can easily stagger with the clamping block 21 and insert into the gap between the clamping blocks 21, and can also be easily blocked by the clamping block 21.

[0040] As Figure 3 shown in Figure 3 , a return spring 5 is fixed to one end of the driving core. The end of the return spring 5 away from the driving core is fixedly connected to the bottom of the housing 1; a square column 11 is fixed at the bottom of the housing 1 and in the middle of the return spring 5. A square groove 31 is opened at the bottom of the driving core, which has a clearance fit with the square column 11 and can accommodate the square column 11. One end of the square column 11 close to the door suction column 4 is always inserted into the square groove 31. When the door suction column 4 hits the rotating core 3, the rotating core 3 is pushed into the rotating cylinder 2. The square column 11 can prevent the rotating core 3 from rotating. After the force on the rotating core 3 is released, the return spring 5 can push the rotating core 3 out of the rotating cylinder 2.

[0041] As Figure 3 shown in Figure 3 , an annular convex rib 6 is provided at the bottom of the rotating cylinder 2. The surface of the convex rib 6 close to the bottom of the housing 1 is processed into an arc surface; the convex rib 6 is in contact with and slidably connected to the inner bottom of the housing 1. The contact surface between the convex rib 6 and the bottom of the housing 1 is small, which can reduce the friction between the rotating cylinder 2 and the housing 1.

[0042] As can be seen from the above, the technical principle of the present utility model is as follows:

[0043] When it is necessary to open the door leaf and fix the door leaf to the wall, rotate the door leaf, insert the end of the door suction column 4 into the gap between the two clamping blocks 21, and then continue to press the door leaf, so that the door suction column 4 presses the rotating core 3, prompting the slider 32 on the driving core to slide in the sliding groove 22. After the driving core is pressed down, it is reset by the return spring 5. One press and reset can make the slider 32 slide across a unit sliding groove 221. There are four groups of unit sliding grooves 221. When the slider 32 slides across a unit sliding groove 221, the rotating cylinder 2 can be driven to rotate 90°, thereby driving the hook portion 211 to rotate 90° relative to the bump 41. The clamping block 21 rotates close to the bump 41, and the hook portion 211 of the clamping block 21 blocks the bump 41 to prevent the door suction column 4 from disengaging from the door suction seat.

[0044] When the door needs to be closed, the operator presses down the door leaf again, and the door suction column 4 presses the rotating core 3 again, causing the slider 32 to slide across a unit chute 221, prompting the rotating cylinder 2 to drive the latch 21 to rotate 90° again. The convex block 41 aligns with the gap of the latch 21 and can disengage from the door suction seat through the gap. Then close the door, and the door leaf and the door frame are locked by the door lock.

[0045] The door suction seat and the door suction column 4 are respectively fixed on the wall surface and the bottom surface, reducing the entry of dust and moisture, and prolonging the service life of the door suction. In summary, it solves the technical problems that the door suction base is fixed on the ground, and the internal structure is complex. After long-term use, water and dust are likely to enter the inside of the door suction base, resulting in rust, damage, unsmooth movement, and high scrap rate of the components inside the door suction base. At the same time, compared with the magnetic door suction, the door suction in this solution uses a mechanical clamping fixed method to fix the door suction column 4 and the door suction seat, which is more stable. In the case of strong wind, it is not easy for the door suction column 4 and the door suction seat to separate.

[0046] The above are only the embodiments of the present invention, and common knowledge such as the specific structures and characteristics known in the solution is not described in detail here. It should be pointed out that for those skilled in the art, without departing from the structure of the present invention, several deformations and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the implementation effect of the present invention and the practicality of the patent. The protection scope required by this application should be subject to the content of its claims, and the specific implementation manners described in the specification can be used to interpret the content of the claims.

Claims

1. A snap-on non-magnetic door stopper, comprising a door stopper base fixed on the wall and a door stopper post fixed on the door leaf, characterized in that, A bump is provided on the door stopper column. The door stopper base includes a housing. Inside the housing, a blocking member for clamping with the bump is rotatably connected. A driving device for driving the blocking member to rotate is also provided inside the housing. The driving device drives the blocking member to disengage from or clamp with the bump.

2. The snap-on non-magnetic door stopper according to claim 1, wherein: The driving device includes a rotating cylinder coaxially arranged with the housing and rotatably connected. The inner surface of the rotating cylinder is provided with a chute distributed in a wavy shape along the axis of the rotating cylinder and connected end to end. A driving core is provided inside the rotating cylinder. A slider is fixed on the circumferential surface of the driving core. The slider is inserted into the chute and slidably connected with the chute. One end of the driving core facing the opening of the rotating cylinder can contact the end of the door stopper column.

3. The snap-on non-magnetic door stopper according to claim 2, characterized in that: The blocking member includes two clamping blocks. One end of each clamping block is fixedly connected to the end of the rotating cylinder close to the door stopper column, and the two clamping blocks are equidistantly distributed around the axis of the rotating cylinder. The end of the clamping block away from the rotating cylinder is radially bent towards the axis of the rotating cylinder to form a hook portion that can cooperate with the bump. When the bump contacts the hook portion, the bump is located between the hook portion and the driving core.

4. The snap-in type non-magnetic door stopper according to claim 3, characterized in that: A return spring is fixed to one end of the driving core. The end of the return spring away from the driving core is fixedly connected to the bottom of the housing.

5. The snap-on non-magnetic door stopper according to claim 4, wherein: The chute is composed of 4 groups of unit chutes with a V-shaped extension trajectory connected end to end and equidistantly arranged in a circumferential array. Each unit chute includes two inclined chutes with intersecting centerlines, and the centerlines of the two inclined chutes are not parallel to the axis of the rotating cylinder.

6. The snap-on non-magnetic door stopper according to claim 5, characterized in that: The included angle between the connection lines of the two ends of the clamping block and the axis of the rotating cylinder is ≤ 90°. There are two groups of bumps on the door stopper column, which are arranged in a circumferential array around the axis of the door stopper column and equidistantly. The width of the bump is less than or equal to the width of the clamping block.

7. The snap-on non-magnetic door stopper according to claim 6, wherein: Both groove edges of the chute have corners at the intersection of the two inclined chutes and the intersection of the two unit chutes, and the corresponding corners of the two edges are staggered, so that when the slider slides in the chute, it always tends to slide into the next inclined chute.

8. A snap-in type non-magnetic door stopper according to claim 7, characterized in that: The end of the door stopper column in contact with the driving core is processed into an arc surface, and the end of the driving core close to the door stopper column is coated with a rubber layer.

9. The snap-on non-magnetic door stopper according to claim 8, characterized in that: A wedge-shaped convex ring is surrounded outside the rotating cylinder. One end of the housing is open, and the open end is bent towards the inner wall to form a limiting portion. The wedge-shaped convex ring is located inside the housing and contacts the limiting portion. A vertical groove is provided on the limiting portion for the limiting portion to form an open ring and elastically deform.

10. A snap-in type non-magnetic door stopper according to claim 9, characterized in that: A square column is fixed to the bottom of the housing. A square groove is provided at the bottom of the driving core, which is in clearance fit with the square column and can accommodate the square column. One end of the square column close to the door stopper column is always inserted into the square groove.

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