CN212898072U - Sliding door buffer - Google Patents

Abstract

A sliding door buffer relates to the buffer field and comprises a main body and an upper blocking piece, wherein the main body comprises a support, a hydraulic damper, a moving piece, a connecting piece and a drag hook, a sliding groove is formed in the support, the moving piece is connected to the sliding groove in a sliding mode, the connecting piece is installed on the moving piece, and a vertical hinged shaft is arranged at the front end of the connecting piece; the rear end of the drag hook is provided with a hinge hole, the hinge hole is hinged with the hinge shaft, the front end of the drag hook is provided with a guide part, the front end of the support is also provided with an arc-shaped relief part, and the guide part is in sliding fit with the arc-shaped relief part; the moving part and the bracket are provided with the abdicating groove and the waist groove with radian at the front ends, and the pin hooked with the spring is used for sliding fit abdicating in the groove, so that the abdicating can be performed to get rid of the tension of the spring when the moving part slides to the front end of the waist groove to continue sliding forward; the unhooking phenomenon can not occur in the using process of a user, and the pulling force for pulling the door is reduced.

Description

Sliding door buffer

Technical Field

The utility model belongs to the technical field of the buffer and specifically relates to a move a buffer is related to.

Background

The sliding door is used by a plurality of families due to the advantages of small occupied space, convenience in disassembly and assembly, attractiveness and the like, but the sliding door can generate the phenomenon that the door leaf collides with the door frame due to the weight of the door and the force of pushing the door in the sliding process, so that the door and the door frame are damaged, and potential safety hazards such as noise or clamping hands are generated. These problems are solved by installing a sliding door damper that creates a safe buffer distance when the door is about to merge with the doorframe and then slowly merges. Because the existing sliding door buffer on the market is difficult to install and debug, the sliding door is easy to unhook in the using process, the sliding door is too heavy (how long the buffer stroke is, how long the tension spring is required to be stretched and the tension spring is more and more heavy), people with small strength, such as children, old people and the like, are difficult to pull the sliding door, and certain potential safety hazards exist in emergency situations.

Disclosure of Invention

The utility model discloses an it is not enough to overcome above-mentioned condition, aims at providing the technical scheme that can solve above-mentioned problem.

A sliding door buffer comprises a main body and an upper blocking piece, wherein the main body comprises a support, a hydraulic damper, a moving piece, a connecting piece and a drag hook, a sliding groove is formed in the support, the moving piece is connected to the sliding groove in a sliding mode, the connecting piece is installed on the moving piece, and a vertical hinged shaft is arranged at the front end of the connecting piece; the rear end of the drag hook is provided with a hinge hole, the hinge hole is hinged with the hinge shaft, the front end of the drag hook is provided with a guide part, the front end of the support is also provided with an arc-shaped relief part, and the guide part is in sliding fit with the arc-shaped relief part; the lower end of the upper stopper is provided with a stop block, and the stop block and the drag hook are loosened and hooked through sliding fit of the guide part and the arc-shaped position-giving part; the hydraulic damper is installed at the rear end of the sliding groove, and a piston rod of the hydraulic damper is connected with the movable piece.

Preferably, the sliding door buffer further comprises a spring and a pin, wherein two side parts of the movable part are respectively provided with a yielding groove, the front end of the yielding groove extends to form a radian yielding groove, two side parts of the support are respectively provided with a waist groove, the front end of the waist groove extends to form a radian waist groove, the extending tail end of the radian yielding groove is in butt joint with the waist groove, the extending tail end of the radian waist groove is in butt joint with the yielding groove, the pin is in sliding fit with the yielding groove or the waist groove, and the pin is in yielding fit with the radian yielding groove or the radian waist groove; one end of the spring is connected to the rear end of the sliding groove, and the other end of the spring is connected to the pin.

Preferably, the drag hook is provided with two, forms spacing chamber between two drag hooks, and the dog docks with spacing chamber.

Preferably, the front ends of the two sides of the sliding groove are provided with first separation openings, the first separation openings correspond to the arc abdicating parts, the outer side walls of the two drag hooks are respectively provided with a limiting block, and the limiting blocks are in sliding fit with the side walls of the sliding groove; the initial position department that the spout both sides are located the drag hook has still seted up the second respectively and has broken away from the mouth, and the second still is provided with the shell fragment on breaking away from the mouth, stopper and shell fragment elastic fit.

Preferably, the guide portion extends downward to the groove bottom of the sliding groove, and the arc abdicating portion is located at the groove bottom of the sliding groove.

Preferably, the upper ends of the two sides of the sliding groove are respectively provided with a sliding way, the upper ends of the two sides of the moving part extend outwards to form a sliding block, and the sliding block is in sliding fit with the sliding ways.

Preferably, move a buffer and still include preceding closing cap and back closing cap, the lateral part of preceding closing cap and back closing cap is provided with the joint mouth, still the shaping has the fixture block on the outside portion of support, joint mouth and fixture block mutual joint cooperation.

Compared with the prior art, the beneficial effects of the utility model are that:

1) the pin hooked with the spring slides and moves away from matching through the yielding groove on the movable part and the waist groove on the bracket; therefore, when the door is opened, the upper blocking piece drives the drag hook and the movable piece to slide to the radian waist groove position, the pin can be abducted into the abduction groove, and the movable piece can get rid of the retraction force of the spring and continuously slide to move forwards; through the design, under the condition of opening the door, the main body arranged in the light opening on the door leaf can get rid of the retraction force of the spring before being separated from the upper stop piece arranged in the track on the door frame; the door leaf can be pulled open without using the force for pulling the full stroke, and the spring does not need to be stretched to the extent consistent with the stroke, so that the situation that the door is difficult to open due to overlarge resilience is caused, and the pulling force for pulling the door by a user can be reduced; under the condition of closing the door, the sliding inertia of the door leaves enables the main body to impact the stop block; when the stop block enters the drag hook limiting cavity to impact the connecting piece to drive the moving piece to slide backwards, the moving piece cannot be subjected to the retraction acting force of the spring because the pin is positioned in the abdicating groove, so that the front end buffering stroke of the hydraulic damper connected to the moving piece is free from the force release condition of the retraction force of the spring; thereby ensuring that no intervention of external force (spring retraction force) is caused when the sliding door buffer performs the buffering action.

2) By arranging two vertical draw hooks which are opened left and right, a limit cavity with deeper depth is formed between the two draw hooks; the stop block of the upper stopper is butted with the limit cavity, and a larger free butt joint range is arranged in the upper stopper; the guide parts of the drag hooks are in sliding fit with the arc-shaped position-giving part at the front end of the bracket to slide and open and close the two drag hooks, so that the upper stopper is separated from the main body; the buffering stroke at the front end of the main body has no retraction force of a spring on the draw hook; through the design, the upper stopper and the main body do not need to be accurately matched, and debugging steps are reduced; in the using process, the unhooking phenomenon is not easy to cause because of the sinking of the door leaf or the door frame.

3) The limiting block extends out of the first separation opening through the arc-shaped abdicating part, so that the opening degree of the two drag hooks can be increased, and the tensioning degree between the two drag hooks when the stop block is locked in the drag hooks and separated from the drag hooks is improved; when the drag hook is in the spacing chamber of initial end position last fender dog entering for the first time, elastic deformation through the shell fragment can make two drag hooks possess elastic shrink dynamics to realized that two drag hooks can possess elastic tensile force at the initial end, can guarantee opening of two drag hooks, the dog of being convenient for enters into spacing chamber, can guarantee again between two drag hooks the inseparable degree of complex, guarantees that dog and drag hook stabilize the hookup cooperation.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a schematic view of the installation of the present invention.

Fig. 2 is a schematic structural diagram of the present invention.

Fig. 3 is a schematic structural view of the present invention without the front cover.

Fig. 4 is a plan view of the structure of the present invention.

Fig. 5 is a schematic cross-sectional view of the present invention.

Fig. 6 is a schematic view of the present invention without the upper stopper, the bracket, the front cover and the rear cover.

Fig. 7 is a schematic structural diagram of the present invention at a in fig. 3.

Fig. 8 is a schematic structural view of a door leaf and a door frame used in the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it should be understood that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 8, in an embodiment of the present invention, a sliding door buffer includes a main body 1 and an upper retaining member 20, the main body 1 includes a support 10, a hydraulic damper 60, a movable member 50, a connecting member 40 and a drag hook 30, the support 10 is provided with a sliding slot 11, the movable member 50 is slidably connected to the sliding slot 11, the connecting member 40 is installed on the movable member 50, and a vertical hinge shaft is disposed at a front end of the connecting member 40; the rear end of the drag hook 30 is provided with a hinge hole, the hinge hole is hinged with the hinge shaft, the front end of the drag hook 30 is provided with a guide part 31, the front end of the bracket 10 is also provided with an arc-shaped position-avoiding part 14, and the guide part 31 is in sliding fit with the arc-shaped position-avoiding part 14; the lower end of the upper stopper 20 is provided with a stopper 21, and the stopper 21 and the draw hook 30 are loosened and hooked through the sliding fit of the guide part 31 and the arc-shaped position-giving part 14; the hydraulic damper 60 is installed at the rear end of the chute 11, and a piston rod of the hydraulic damper 60 is connected to the movable member 50.

In the technical means, the main body 1 is installed in the door leaf 2, the upper stopper 20 is installed on the door frame 3, and the two draw hooks 30 are opened and closed in a sliding manner through the sliding fit of the guide part 31 and the arc-shaped position-giving part 14, so that the stopper 21 at the lower end of the upper stopper 20 is hooked with the draw hooks 30; when the door leaf 2 is pulled open, the main body 1 installed in the light opening of the door leaf 2 moves backwards, at this time, the stopper 21 on the upper stopper 20 is connected with the main body 1 installed on the door leaf 2 by hooking the draw hook 30, when the main body 1 moves backwards, the stopper 21 on the upper stopper 20 hooks the draw hook 30 to enable the moving piece 50 to move forwards to the arc-shaped position-giving part 14 on the support 10 along the sliding groove 11, at this time, the draw hook 30 can be opened outwards along the arc-shaped position-giving part 14, so that the stopper 21 is separated, and therefore the separation of the upper stopper 20 from the main body 1 is realized.

Further as shown in fig. 3-8, the sliding door buffer main body 1 further includes a spring 70 and a pin 71, the two side portions of the movable member 50 are both provided with a yielding groove 51, the front end of the yielding groove 51 is extended with a radian yielding groove 52, the two side portions of the bracket 10 are both provided with a waist groove 15, the front end of the waist groove 15 is extended with a radian waist groove 16, the extending end of the radian yielding groove 52 is butted with the waist groove 15, the extending end of the radian waist groove 16 is butted with the yielding groove 51, the pin 71 is in sliding fit with the yielding groove 51 or the waist groove 15, and the pin 71 is in yielding fit with the radian yielding groove 52 or the radian waist groove 16; one end of the spring 70 is connected to the rear end of the chute 11, and the other end of the spring 70 is connected to the pin 71.

In the above technical means, by providing the abdicating groove 51 and the waist groove 15, and extending the radian abdicating groove 52 and the radian waist groove 16 from the abdicating groove 51 and the waist groove 15 respectively, the pin 71 is used for sliding fit, when the door leaf 2 is not pulled, the upper baffle 20 is synchronously connected with the hydraulic damper 60 and the spring 70 through the hooking fit of the baffle 21 and the draw hook 30, and at this time, the pin 71 is located in the waist groove 15 and the radian abdicating groove 52, the door leaf 2 will receive the contraction force of the spring 70, so that the door leaf 2 can keep a tightly closed state with the door frame 3; when the door leaf 2 is pulled open, the pin 71 slides forwards along the waist groove 15, when the pin 71 slides to the tail end of the waist groove 15 and enters the arc waist groove 16, the arc waist groove 16 guides the pin 71 to move upwards, the pin 71 enters the abdicating groove 51, so that the pin 71 stays at the extending tail end of the arc waist groove 16, the movable piece 50 continues to move forwards along with the pulling of the door leaf 2, the pin 71 slides along the abdicating groove 51, the pin 71 is in a static state relative to the bracket 10 and in a sliding state relative to the movable piece 50, the spring 70 is in a static state relative to the bracket 10, the spring 70 can be stopped in the process, the door leaf 2 is not limited by the spring 70, the resistance of the spring 70 is avoided when the door leaf 2 is pulled open, and the pulling force of a user for pulling the door can be relieved; through the design, the door leaf 2 can be pulled open without using the force for pulling the full stroke during opening the door, and the spring 70 is not required to be stretched to be consistent with the stroke length, so that the situation that the door is difficult to open due to the resilience force is caused; when the door leaf 2 is closed, the stopper 21 enters the limit chamber 33 between the two hooks 30 along the guide portion 31 in the open state to strike the connecting member 40 and drive the movable member 50 to slide backward. At this time, because the pin 71 is located in the arc waist groove 16 and the abdicating groove 51, the arc abdicating groove 52 on the movable element 50 only receives the buffer resistance of the hydraulic damper 60 in the process of sliding to the arc waist groove 16, and the movable element 50 does not receive the contraction acting force of the spring 70 in the process, so that the hydraulic damper 60 removes the contraction acting force of the spring 70, thereby ensuring that no interference of external force (the retraction force of the spring 70) is generated when the hydraulic damper 60 performs the buffer action.

As further shown in fig. 3-7, two draw hooks 30 are provided, a limit cavity 33 is formed between the two draw hooks 30, and the stop 21 is abutted with the limit cavity 33. The stop block 21 is prevented from being accidentally separated from the draw hook 30.

As shown in fig. 3-7, the front ends of the two sides of the chute 11 are provided with first separation openings 13, the first separation openings 13 correspond to the arc-shaped positioning portions 14, the outer side walls of the two drag hooks 30 are provided with limit blocks 32, and the limit blocks 32 are in sliding fit with the side walls of the chute 11; the two sides of the chute at the initial position of the drag hook are respectively provided with a second separation opening 35, the second separation opening 35 is provided with an elastic sheet 36, and the limiting block 32 is elastically matched with the elastic sheet 36.

In the above technical means, the limit block 32 extends out of the first disengaging opening 13 through the arc-shaped position-yielding portion 14, the position of the draw hook 30 when not matched with the arc-shaped position-yielding portion 14 is limited by the sliding fit of the limit block 32 and the side wall of the chute 11, the opening degree of the two draw hooks 30 can be increased by the limit block 32 extending out of the first disengaging opening 13 through the arc-shaped position-yielding portion 14, and the tensioning degree between the two draw hooks 30 when the stop block 21 is locked in the draw hook 30 and is disengaged from the draw hook 30 is improved; the installation of the sliding door buffer is completed, the two draw hooks 30 are arranged at the initial end position, when the stop dog 21 is butted in the limiting cavity 33 for the first time, the stop dog 21 will prop against the guide part 31 at the front end of the two draw hooks 30, the elastic piece 36 is propped against the limiting block 32 on the draw hook 30 at the moment, the two draw hooks 30 are outwards opened through the elastic deformation of the elastic piece 36, the stop dog 21 at the lower end of the upper stop piece 20 is pushed into the limiting cavity 33, the upper stop piece is pushed into the limiting cavity 33, the elastic piece 36 rebounds, the two draw hooks 30 are closed again, the upper stop piece 20 is successfully butted into the limiting cavity 33, and the stable hooking and matching of the stop dog 21 and the draw hooks 30 can be guaranteed.

As further shown in fig. 5, the guide portion 31 extends downward to the bottom of the sliding slot 11, and the arc-shaped relief portion 14 is located at the bottom of the sliding slot 11.

As further shown in fig. 3, 4 and 7, the upper ends of the two sides of the sliding slot 11 are respectively provided with a sliding way 12, the upper ends of the two sides of the movable element 50 extend outwards to form a sliding block 53, and the sliding block 53 is in sliding fit with the sliding way 12.

Further as shown in fig. 2, the sliding door buffer further comprises a front cover 17 and a rear cover 18, the side portions of the front cover 17 and the rear cover 18 are provided with a clamping interface 171, the outer side portion of the bracket 10 is further formed with a clamping block 19, and the clamping interface 171 and the clamping block 19 are mutually clamped and matched, so that the integral surface tidiness of the sliding door buffer is ensured, and meanwhile, the moving part 50 is prevented from being separated from the sliding door buffer.

Description of the principle:

as shown in fig. 1-8, the pin 71 hooked with the spring 70 is slid and escaped from engagement by the escape slot 51 on the movable member 50 and the waist slot 15 on the bracket 10; therefore, when the door is opened, the upper blocking piece 20 drives the draw hook 30 and the movable piece 50 to slide to the position of the radian waist groove 16, the pin 71 can be abducted into the abduction groove 51, and the movable piece 50 can break away from the retraction force of the spring 70 and continuously slide to move forwards; by this design, in case of opening the door, the main body 1 installed in the light opening of the door leaf 2 can get rid of the retracting force of the spring 70 before getting out of the upper stopper 20 installed in the track of the door frame 3; the door leaf 2 can be pulled open without using the force for pulling the full stroke, and the spring 70 is not required to be stretched to the extent consistent with the stroke, so that the situation that the door is difficult to open due to overlarge resilience is caused, and the pulling force for pulling the door by a user can be reduced; in the case of closing the door, the sliding inertia of the door leaf 2 allows the body to strike the stop 21; when the stop block 21 enters the limit cavity 33 of the draw hook 30 and impacts the connecting piece 40 to drive the movable piece 50 to slide backwards, the movable piece 50 cannot receive the retraction acting force of the spring 70 because the pin 71 is positioned in the abdicating groove 51, so that the front buffer stroke of the hydraulic damper connected to the movable piece 50 is free from the force release condition of the retraction force of the spring 70; thereby ensuring that no external force (the retraction force of the spring 70) intervenes when the sliding door buffer performs the buffering action.

By arranging two vertical draw hooks 30 which are opened left and right, a limit cavity 33 with deeper depth is formed between the two draw hooks 30; the stop block 21 of the upper stopper 20 is butted with the limit cavity 33, and a larger free butting range is arranged in the limit cavity; the guide parts of the draw hooks 30 are in sliding fit with the arc abdicating part at the front end of the bracket 10, so that the two draw hooks 30 are opened and closed in a sliding manner, and the separation of the upper stopper 20 from the main body is realized; and the buffering stroke of the front end of the main body has no retraction force of the spring 70 on the draw hook 30; through the design, the upper baffle piece 20 does not need to be accurately matched with the main body, and debugging steps are reduced; in the using process, the unhooking phenomenon is not easy to be caused by the sinking of the door leaf 2 or the door frame 3.

The limiting block extends out of the first separation opening through the arc-shaped abdicating part, so that the opening degree of the two draw hooks 30 can be increased, and the tensioning degree between the two draw hooks 30 when the stop block 21 is locked in the draw hooks 30 and separated from the draw hooks 30 is improved; when the drag hook 30 is in the initial end position, the stopper 20 and the stopper 21 enter the limiting cavity 33 for the first time, elastic deformation through the elastic sheet 36 can enable the two drag hooks 30 to have elastic contraction force, so that the two drag hooks 30 can have elastic tension at the initial end, opening of the two drag hooks 30 can be guaranteed, the stopper 21 convenient to enter the limiting cavity 33, the matched tightness degree between the two drag hooks 30 can be guaranteed, and stable hooking matching of the stopper 21 and the drag hooks 30 is guaranteed.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Claims (7)

1. A sliding door buffer comprises a main body and an upper stopper, and is characterized in that the main body comprises a support, a hydraulic damper, a moving part, a connecting piece and a drag hook, wherein the support is provided with a sliding groove, the moving part is connected to the sliding groove in a sliding manner, the connecting piece is arranged on the moving part, and the front end of the connecting piece is provided with a vertical hinged shaft; the rear end of the drag hook is provided with a hinge hole, the hinge hole is hinged with the hinge shaft, the front end of the drag hook is provided with a guide part, the front end of the support is also provided with an arc-shaped relief part, and the guide part is in sliding fit with the arc-shaped relief part; the lower end of the upper stopper is provided with a stop block, and the stop block and the drag hook are loosened and hooked through sliding fit of the guide part and the arc-shaped position-giving part; the hydraulic damper is installed at the rear end of the sliding groove, and a piston rod of the hydraulic damper is connected with the movable piece.

2. The sliding door buffer according to claim 1, further comprising a spring and a pin, wherein the two side portions of the moving member are respectively provided with a yielding groove, the front end of the yielding groove extends to form a radian yielding groove, the two side portions of the bracket are respectively provided with a waist groove, the front end of each waist groove extends to form a radian waist groove, the extending tail end of the radian yielding groove is butted with the waist groove, the extending tail end of the radian waist groove is butted with the yielding groove, the pin is in sliding fit with the yielding groove or the waist groove, and the pin is in yielding fit with the radian yielding groove or the radian waist groove; one end of the spring is connected to the rear end of the sliding groove, and the other end of the spring is connected to the pin.

3. The sliding door buffer as claimed in claim 1, wherein there are two draw hooks, a limit cavity is formed between the two draw hooks, and the stop block is butted with the limit cavity.

4. The sliding door buffer according to claim 3, wherein the front ends of the two sides of the sliding groove are provided with first disengaging openings, the first disengaging openings correspond to the arc-shaped receding parts, the outer side walls of the two drag hooks are provided with limiting blocks, and the limiting blocks are in sliding fit with the side walls of the sliding groove; the initial position department that the spout both sides are located the drag hook has still seted up the second respectively and has broken away from the mouth, and the second still is provided with the shell fragment on breaking away from the mouth, stopper and shell fragment elastic fit.

5. The sliding door bumper of claim 1, wherein the guide portion extends downwardly to a bottom of the channel, and the arcuate relief is located at the bottom of the channel.

6. The sliding door buffer according to claim 1, wherein the upper ends of the two sides of the sliding groove are respectively provided with a sliding way, the upper ends of the two sides of the moving member are extended outwards to form a sliding block, and the sliding block is in sliding fit with the sliding way.

7. The sliding door buffer according to claim 2, further comprising a front cover and a rear cover, wherein the front cover and the rear cover are provided with clamping ports at the side portions, the outer side portion of the bracket is further formed with a clamping block, and the clamping ports and the clamping block are mutually clamped and matched.

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