CN107401340B

CN107401340B - Door stopper structure

Info

Publication number: CN107401340B
Application number: CN201710730897.7A
Authority: CN
Inventors: 张秦鸣
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-08-23
Filing date: 2017-08-23
Publication date: 2023-04-25
Anticipated expiration: 2037-08-23
Also published as: CN107401340A

Abstract

The invention provides a door stopper structure, and belongs to the technical field of positioning devices. It has solved the current not good problem of door stopper structure buffering effect. The door stopper structure comprises a positioning piece and a buffer assembly which are oppositely arranged, wherein the positioning piece is provided with a clamping joint; the buffer component comprises a mounting seat and a reset elastic piece, a slideway is arranged on the mounting seat, a trigger sliding block capable of moving back and forth is arranged on the slideway, and the trigger sliding block is provided with a clamping part connected with the clamping joint; one end of the slide way, which faces the positioning piece, is a clamping end, the other end of the slide way is a suction end, and the clamping connector can be clamped or separated from the clamping part of the trigger sliding block at the clamping end of the slide way; a rotary damping structure capable of generating resistance in the process that the trigger sliding block moves from the clamping end to the suction end of the slideway is arranged between the mounting seat and the trigger sliding block; the reset elastic piece has elastic reset force for pulling the trigger sliding block from the clamping end of the slideway to the suction end. The door stopper structure ensures the buffering effect of the door stopper structure and improves the compactness of the door stopper structure.

Description

Door stopper structure

Technical Field

The invention belongs to the technical field of positioning devices, and relates to a door stopper structure.

Background

When the door and window is opened or closed, the door and window needs to be prevented from generating excessive impact force so as to avoid damage and noise caused by severe collision, after the door and window is opened, the door and window also needs to be kept in a stable state so as to prevent abnormal actions caused by wind blowing or external force touch, the window mostly adopts manual control of buffering force, the purpose is realized through a locating pin or a lock catch, and the door panel usually adopts door suction to solve the problem. However, the existing door stopper products in the market have the problems of poor buffering effect, too small suction force, easy damage and the like.

Chinese patent (bulletin number: CN2648010, bulletin day: 2004-10-13) discloses a sliding door stopper assembly comprising: the door absorber is arranged in an upper rail at the closed position of the sliding door and the door frame, the main body part of the door absorber is a mounting box, a hollowed-out guide groove with a horn-shaped opening at one end is formed in the central position of the mounting box, a pressure spring is arranged in parallel on one side of the guide groove in the mounting box, a cylindrical containing groove with the pressure spring is formed in the mounting box, a crank-shaped slot with the same width is also formed below the cylindrical containing groove around the outer contour line of the cylindrical containing groove, a guide rail with the same thickness is arranged on the other side of the guide groove, a trigger sliding block is arranged in a space formed by the cylindrical containing groove, the crank-shaped slot below the cylindrical containing groove and the guide rail with the same thickness on the other side of the guide groove, and the trigger sliding block is respectively provided with a stable state at two ends of the guide groove by virtue of the action of the pressure spring and an elastic strip arranged on the trigger sliding block; a door closer pin mounted on the sliding door leaf and corresponding to the position of the guide slot with the flared opening.

The door stopper combined device in the patent document can realize the suction of a sliding door, but is not provided with a buffer structure, so that the door stopper combined device is easy to damage due to overlarge impact force in the door closing process, and larger noise is generated at the same time; the applicant has previously declared an improved damping cushioning door-inhale structure; however, in the use process, the cylinder body and the telescopic rod of the hydraulic damper are longer, so that enough buffering force is required, the volume of the whole door stopper structure is larger, the integral installation is limited, and interference is easy to generate.

Disclosure of Invention

The invention provides a damping buffer door stopper structure aiming at the problems existing in the prior art, and aims to solve the technical problems that: how to improve the compactness of the door stopper while guaranteeing the buffering effect of the door stopper structure.

The aim of the invention can be achieved by the following technical scheme:

the door stopper structure comprises a positioning piece and a buffer component which are oppositely arranged, and is characterized in that the positioning piece is provided with a clamping joint; the buffer assembly comprises a mounting seat and a reset elastic piece, a slideway is arranged on the mounting seat, a trigger sliding block capable of moving back and forth is arranged on the slideway, and the trigger sliding block is provided with a clamping part connected with the clamping joint; one end of the slide way, which faces the positioning piece, is a clamping end, the other end of the slide way is a suction end, and the clamping connector can be clamped or separated from the clamping part of the trigger sliding block at the clamping end of the slide way; a rotary damping structure capable of generating resistance in the process that the trigger sliding block moves from the clamping end to the suction end of the slideway is arranged between the mounting seat and the trigger sliding block; the reset elastic piece is provided with elastic reset force which pulls the trigger sliding block from the clamping end of the slideway to the suction end.

The working principle is as follows: when the door is used, the positioning piece and the buffer component are respectively arranged at two opposite positions, usually the positioning piece is arranged at the position of the door plate close to the edge, and the buffer component is arranged on a wall body, such as a skirting line, or is directly fixed on the ground; the end of the upper slideway of the mounting seat, which faces the positioning piece, is a clamping end, the other end is a sucking end, the trigger sliding block is kept at the position of the clamping end of the slideway in an initial state, when the door plate and the positioning piece on the door plate move towards the buffer component, the clamping joint on the positioning piece is firstly contacted with the trigger sliding block, the trigger slide block is pushed to move from the clamping end to the suction end of the slide way, in the process, the rotary damping structure plays an effective role in buffering, the buffering effect is ensured, the damage caused by severe impact is prevented, and the failure rate is reduced; after the trigger sliding block reaches the engaging end, the trigger sliding block can be stably kept at the engaging end of the slideway under the action of the elastic reset force of the reset elastic piece, and meanwhile, the locating piece and the trigger sliding block form a clamping limit, so that the stability of the connection of the locating piece and the buffer assembly is ensured, and the stability and reliability of the door plate state are ensured. When the door is closed, the elastic restoring force of the restoring elastic piece is overcome by applying enough external force, the positioning piece drives the trigger sliding block to move towards the clamping end, the clamping joint is separated from the clamping part on the trigger sliding block at the clamping end, and the attraction is released, so that the restoration is completed. The rotary damping structure is adopted in the technical scheme to realize the buffering effect, the linear application of the traditional buffer air cylinder or the buffer oil cylinder is changed into circumferential rotation, and the length of the buffer structure can be shortened under the condition of ensuring enough buffering force, so that the buffering effect of the door stopper structure is ensured and the compactness of the door stopper structure is improved.

In the door stopper structure, a shell is arranged on the mounting seat, a cover plate in sliding connection is arranged on the shell, a connecting part is arranged on the trigger sliding block, and one end of the cover plate is hinged with the connecting part; a clamping groove for clamping the clamping connector is formed between the connecting part and the clamping part; the rotary damping structure comprises a rotary body with buffering damping, the rotary body is fixedly arranged on the mounting seat, and the output end of the rotary body is provided with a gear; the lateral part of apron has the folded plate down, set firmly the rack on the folded plate just the rack can follow trigger slide block is in the slide removes, the gear with the rack meshes. The apron plays dustproof effect, and the rack sets up on the apron, is connected on triggering the slider together with it, and the joint on the setting element promotes when triggering the slider and remove to the actuation end by the clamping end of slide, drives whole apron, folded plate and rack and removes, and the rack meshes with the gear on the rotator, produces the damping when both relative rotations, reaches the buffering effect.

In the door stopper structure, a yielding gap is formed at one end, facing the positioning piece, of the upper side of the shell, the cover plate is located at the yielding gap, sliding grooves are formed in two side walls of the shell, and the side edges of the cover plate are embedded in the sliding grooves in a sliding mode; the folding plate is characterized in that the folding plate and the racks are arranged on two sides of the cover plate, the number of the rotating bodies is two, the two rotating bodies are arranged side by side, and the gear on each rotating body is arranged corresponding to one of the racks. The design of apron both needs to be dustproof, avoids again to form with triggering the slider and interferes, and the design that apron and rack link as an organic whole in this technical scheme can guarantee holistic compact structure nature, and rack and rotator all design two, can guarantee the equilibrium of atress and the stability of operation.

In the door stopper structure, as another scheme, the rotary damping structure includes a rack fixedly arranged on the mounting seat and a rotator connected to the trigger slide block; the rotating body is provided with buffering damping and is hinged with the trigger sliding block through a connecting plate; the rotating body is provided with a gear; the rack is arranged along the length direction of the slideway, and the gear is meshed with the rack. The principle in the technical scheme is basically the same as that in the scheme, and the difference is that the rotating body is connected to the trigger slide block to move along with the trigger slide block, the rack is fixed on the mounting seat, when the trigger slide block is pushed by the clamping connector on the positioning piece to move from the clamping end of the slideway to the suction end, the rotating body and the gear on the rotating body are driven to move, the rack is meshed with the gear on the rotating body, and damping is generated when the rotating body and the rotating body relatively rotate, so that the buffering effect is achieved.

In the door stopper structure, the slide is a long-strip-shaped groove, limiting grooves along the length direction of the slide are formed in the two side walls of the groove, one end, close to the locking end of the slide, of the limiting grooves is bent and extended to form a turning groove, the triggering slide block is provided with at least two limiting pins arranged at intervals, and the limiting pins are slidably embedded in the limiting grooves, and one of the limiting pins can slide into the turning groove. After the limiting pin slides into the turning groove, the whole triggering sliding block is in an inclined state, and the clamping part on the triggering sliding block is offset to one side of the turning groove, so that the clamping joint can pass through the clamping part and be clamped with or separated from the triggering sliding block. When the clamping connector moves towards the suction end of the slideway, the clamping connector passes over the clamping part, then the trigger slide block is pushed to move towards the suction end of the slideway, after the trigger slide block is separated from the turning groove, the clamping part returns to a position, when the positioning piece moves reversely, the clamping connector and the clamping part on the trigger slide block form clamping limit, the trigger slide block can be driven to reset until the trigger slide block part slides into the turning groove, the clamping part inclines to one side for yielding, and the trigger slide block and the positioning piece are separated; through above-mentioned structure, joint and joint portion are under the condition that does not produce the interference, can realize ingenious joint, do not need extrusion deformation, can reduce wearing and tearing like this, connect the maintenance of being convenient for when stable.

In the door stopper structure, the reset elastic piece is a tension spring, one end of the tension spring is connected to the mounting seat, the other end of the tension spring is connected to the bottom of the trigger sliding block, and the middle position of the crank-shaped groove is located on the axis where the tension spring is located. The trigger slide block forms dead angles in the crank-shaped groove, the trigger slide block is blocked and locked in the crank-shaped groove through the tension of the tension spring, so that the trigger slide block is kept at the blocking end of the slideway, and after the trigger slide block is triggered and pushed away from the crank-shaped groove by the blocking connector on the positioning piece, the trigger slide block can be kept at the sucking end of the slideway through the tension spring, so that the stable state of the door plate is kept, and various utilization effects are achieved.

In the door stopper structure, a housing is fixedly arranged on the mounting seat, a flexible cover plate is connected to the housing in a sliding manner, the cover plate is positioned above the slideway, one end of the cover plate is connected with the trigger sliding block, and the other end of the cover plate can be rolled in the housing; the number of the rotating bodies is two, the two rotating bodies are arranged side by side, and the gear on each rotating body is arranged corresponding to one of the racks. The cover plate has a dustproof effect, and the design of the two rotating bodies and the rack can ensure the balance of stress and the stability of operation.

Further, one end of the rack, which is close to the clamping end of the slideway, is bent downwards in an arc line; the tooth space of the position is wide in upper part and narrow in lower part, when the rotating body follows the trigger sliding block to move to the clamping end of the slideway, the trigger sliding block is inclined downwards, the gear moves along with the trigger sliding block, and the bending shape of the rack can ensure that the gear and the rack are connected in a stable fit all the time.

In the door stopper structure, as a third aspect, the rotation damping structure includes a rack fixed on the mounting base and a rotator having rotation damping; the number of the racks is two and the racks are respectively positioned at two outer sides of the slideway, the racks are arranged along the length direction of the slideway, the rotating body is hinged with the trigger sliding block, and the rotating body is provided with a rotating shaft which is transversely arranged and two ends of the rotating body penetrate through the outer part of the rotating body; gears in transmission connection with the racks are arranged at two ends of the rotating shaft. When the clamping connector on the positioning piece pushes the trigger sliding block to move from the clamping end to the suction end of the slideway, the trigger sliding block drives a rotating body to move, gears are arranged at two ends of the rotating body, and the racks are meshed with the gears to generate damping so as to achieve a buffering effect; this further ensures compactness of the structure and operational stability.

In the door stopper structure, as a further improvement, the mounting seat is further provided with a rotating shaft, a transmission gear meshed with the gear is fixedly arranged on the rotating shaft, two ends of the rotating shaft penetrate through two side walls of the slide rail, two ends of the rotating shaft are fixedly provided with speed changing gears, the speed changing gears are meshed with the racks, and the diameter of the transmission gear is larger than that of the gear and that of the speed changing gears. Through setting up the change gear, can provide the rotational speed of gear when triggering the slider and driving the rotator and remove to improve the buffering effect.

In the door stopper structure, as the improvement scheme of apron, set firmly the casing on the mount pad, sliding connection has the apron on the casing, the apron is located the slide top, the one end of apron is connected with triggering the slider, the other end and the casing of apron are connected, the one end that the apron is close to triggering the slider sets up folding ripple structure.

In the door stopper structure, as a fourth scheme, the rotary damping structure comprises a rotary body fixedly arranged on the mounting seat and a rack made of flexible plastic, the rotary body is provided with rotary damping, the output end of the rotary body is provided with a gear, the side wall of the slideway is provided with a mounting groove, the rack is slidably embedded in the mounting groove, the rack is meshed with the gear, one end of the rack is connected to the trigger sliding block, and the other end of the rack can move along the inner wall of the slideway and bend and turn at the end part of the slideway. When the clamping connector on the positioning piece pushes the trigger sliding block to move from the clamping end to the suction end of the slideway, the rack is driven to move, and the rack is meshed with the gear on the fixed rotating body to generate damping, so that a buffering effect is achieved; the rack is made of flexible plastic, can be bent and turned at the suction end of the slideway, and is turned from one side of the slideway to the other side, so that the whole length of the buffer assembly can be further reduced.

In the door stopper structure, as a fifth aspect, the rotary damping structure includes a chain and a rotator fixed on the mounting base, the rotator has rotary damping, an output end of the rotator has a gear meshed with the chain, the chain can be bent only to one side, one end of the chain is connected to the trigger sliding block, and the other end of the chain can move along an inner wall of the slideway and can be bent and turned at an end of the slideway. When the clamping connector on the positioning piece pushes the trigger sliding block to move from the clamping end to the suction end of the slideway, the chain is driven to move, and the chain is meshed with the gear on the fixed rotating body to generate damping, so that the buffering effect is achieved; the chain can only be bent to one side through the structural design of the chain plate, the end part of the chain reaches the suction end of the slideway and then bends and turns, and one side of the slideway turns to the other side, so that the whole length of the whole buffer assembly is reduced, and the whole door-inhale structure is more compact.

In the door stopper structure, the positioning piece comprises a base body, a mounting hole is formed in the base body, the clamping connector is columnar, the inner end of the clamping connector is inserted into the mounting hole, the outer end of the clamping connector extends out of the base body, and an adjusting spring with two ends respectively acting on the clamping connector and the bottom of the mounting hole is further arranged in the mounting hole. The telescopic connection of joint is on the pedestal, when the trigger slider that is located slide actuation end breaks away from with the joint is unusual, promotes door plant and setting element again, through extrusion joint, and thereby overcome adjusting spring's effort for thereby the joint realizes the joint with the joint portion of trigger slider after the joint portion is walked around to the mounting hole internal contraction, simple quick solution trouble, maintenance convenience is reliable.

In the door stopper structure, the positioning piece comprises a rod body, the clamping connector is fixedly connected to one end of the rod body, the clamping connector is conical, hemispherical, olecranon-hook-shaped or hoe-shaped, the clamping connector and the rod body are integrally formed, and the other end of the rod body is provided with the mounting plate. The locating piece is used for being clamped with the trigger sliding block, the locating piece is not limited to the two structural modes in the scheme, the rod body is connected to the door plate through the mounting plate, and the trigger sliding block is pushed in the mounting seat through the clamping connector to be clamped with the clamping portion.

The rotator structure in the technical proposal can adopt the same or similar structure in the patent application documents (publication number: CN103688081A; publication date: 2014-03-26) of China. However, the rotation damping in the present technical solution is not limited thereto, and any rotating structure capable of generating rotation damping, such as a generator, may be equally substituted for the present technical solution.

Alternatively, the return spring may also be of torsion spring design.

Compared with the prior art, the invention adopts the rotary damping structure to realize the buffering effect, changes the linear application of the traditional buffer cylinder or buffer oil cylinder into circumferential rotation, and can reduce the length of the buffer structure under the condition of ensuring enough buffering force, thereby improving the compactness of the door-inhale structure while ensuring the buffering effect of the door-inhale structure.

Drawings

Fig. 1 is a schematic perspective view of a door stopper according to a first embodiment.

Fig. 2 is a schematic sectional view of the door stopper according to the first embodiment.

Fig. 3 is an exploded view of the door stopper according to the first embodiment.

Fig. 4 is a schematic sectional view of the door stopper according to the second embodiment.

Fig. 5 is an exploded view of the door stopper according to the second embodiment.

Fig. 6 is an exploded view of the door stopper according to the third embodiment.

Fig. 7 is a schematic diagram of an internal structure of the door stopper according to the third embodiment after further improvement.

Fig. 8 is a schematic diagram of an improved structure of a cover plate of the door stopper structure in the fourth embodiment.

Fig. 9 is an exploded view of the door stopper according to the fifth embodiment.

Fig. 10 is a schematic sectional view of the door stopper according to the fifth embodiment.

Fig. 11 is a schematic sectional view of the door stopper according to the sixth embodiment.

Fig. 12 is an exploded view of the positioning member of the door stopper according to the first to sixth embodiments.

Fig. 13 is a schematic perspective view of a positioning member of the door stopper according to the seventh embodiment.

In the figure, 1, a positioning piece; 11. a base; 11a, mounting holes; 12. a clamping joint; 13. an adjusting spring; 14. a rod body; 15. a mounting plate; 2. a buffer assembly; 21. a mounting base; 21a, a slideway; 21a1, a locking end; 21a2, a suction end; 21b, mounting grooves; 21c, a limit groove; 21d, a crutch groove; 22. triggering a sliding block; 22a, a clamping part; 22b, a connection part; 22c, a clamping groove; 22d, a limiting pin; 23. a rotary damping structure; 23a, a rotating body; 23a1, gears; 23a2, a rotation shaft; 23b, a rack; 23c, a rotating shaft; 23c1, a transmission gear; 23c2, a change gear; 23d, a chain; 24. a return elastic member; 25. a housing; 25a, a yielding gap; 25b, a chute; 26. a cover plate; 26a, folded plate.

Detailed Description

The following are specific embodiments of the present invention and the technical solutions of the present invention will be further described with reference to the accompanying drawings, but the present invention is not limited to these embodiments.

Example 1

As shown in fig. 1, 2 and 3, the door stopper structure comprises a positioning piece 1 and a buffer component 2 which are oppositely arranged, wherein a clamping connector 12 is arranged on the positioning piece 1; the buffer assembly 2 comprises a mounting seat 21 and a reset elastic piece 24, wherein a slideway 21a is arranged on the mounting seat 21, a trigger slide block 22 capable of moving back and forth is arranged on the slideway 21a, and the trigger slide block 22 is provided with a clamping part 22a connected with the clamping joint 12; one end of the slide way 21a facing the positioning piece 1 is a locking end 21a1, the other end is a suction end 21a2, and the locking joint 12 can be locked or separated from the locking part 22a of the trigger slide block 22 at the locking end 21a1 of the slide way 21 a; a rotary damping structure 23 which can generate resistance in the process of moving the trigger slide block 22 from the locking end 21a1 to the suction end 21a2 of the slide way 21a is arranged between the mounting seat 21 and the trigger slide block 22; the return elastic member 24 has an elastic return force for pulling the trigger slider 22 from the engagement end 21a1 of the slide rail 21a to the engagement end 21a 2. Specifically, a shell 25 is arranged on the mounting seat 21, a cover plate 26 in sliding connection is arranged on the shell 25, a connecting part 22b is arranged on the trigger slide block 22, and one end of the cover plate 26 is hinged with the connecting part 22 b; a clamping groove 22c for clamping the clamping connector 12 is formed between the connecting part 22b and the clamping part 22a; the rotation damping structure 23 comprises a rotating body 23a with buffering damping, the rotating body 23a is fixedly arranged on the mounting seat 21, and the output end of the rotating body 23a is provided with a gear 23a1; the side part of the cover plate 26 is provided with a downward folded plate 26a, a rack 23b is fixedly arranged on the folded plate 26a, the rack 23b can move along with the trigger slide block 22 in the slideway 21a, and the gear 23a1 is meshed with the rack 23 b; the upper side of the shell 25 towards one end of the positioning piece 1 is provided with a yielding gap 25a, the cover plate 26 is positioned at the yielding gap 25a, two side walls of the shell 25 are provided with sliding grooves 25b, and the side edges of the cover plate 26 are embedded in the sliding grooves 25b in a sliding manner; the cover plate 26 is provided with a folded plate 26a and racks 23b on both sides, the number of the rotating bodies 23a is two, the two rotating bodies 23a are arranged side by side, and the gear 23a1 on each rotating body 23a is arranged corresponding to one of the racks 23 b. When the door is used, the positioning piece 1 and the buffer component 2 are respectively arranged at two opposite positions, normally the positioning piece 1 is arranged at a position of the door panel close to the edge, and the buffer component 2 is arranged on a wall body, such as a skirting line, or is directly fixed on the ground; the end of the slideway 21a on the mounting seat 21 facing the positioning piece 1 is a clamping end 21a1, the other end is a sucking end 21a2, in an initial state, the trigger slide 22 is kept at the position of the clamping end 21a1 of the slideway 21, when the door plate and the positioning piece 1 on the door plate move towards the buffer assembly 2, the clamping joint 12 on the positioning piece 1 is firstly contacted with the trigger slide 22, and the trigger slide 22 is pushed to move from the clamping end 21a1 of the slideway 21a to the sucking end 21a2, in the process, the trigger slide 22 drives the whole cover plate 26, the folded plate 26a and the rack 23b to move, the rack 23b is meshed with the gear 23a1 on the rotating body 23a, damping is generated when the trigger slide 22 and the door plate relatively rotate, the buffer assembly 2 is realized, damage caused by severe impact is prevented, and the fault rate is reduced; after the trigger slide block 22 reaches the engaging end 21a2, under the action of the elastic restoring force of the restoring elastic piece 24, the trigger slide block 22 can be stably kept at the engaging end 21a2 of the slideway 21a, and meanwhile, the positioning piece 1 and the trigger slide block 22 form a clamping limit, so that the stability of the connection of the positioning piece 1 and the buffer component 2 is ensured, and the stability and reliability of the door plate state are ensured. When the door is closed, the elastic restoring force of the restoring elastic piece 24 is overcome by applying enough external force, the positioning piece 1 drives the trigger sliding block 22 to move towards the locking end 21a1, the locking joint 12 is separated from the locking part 22a on the trigger sliding block 22 at the locking end 21a1, and the attraction is released, so that the restoration is completed. The rotary damping structure 23 is adopted in the technical scheme to realize the buffering effect, the linear application of the traditional buffer air cylinder or the buffer oil cylinder is changed into circumferential rotation, and the length of the buffer structure can be shortened under the condition of ensuring enough buffering force, so that the buffer effect of the door stopper structure is ensured and the compactness of the door stopper structure is improved.

Further, as shown in fig. 2 and 3, the slide way 21a is a long-strip-shaped groove, two side walls of the groove are provided with limiting grooves 21c along the length direction of the slide way 25b, one end of the limiting groove 21c, which is close to the locking end 21a1 of the slide way 21a, is bent and extended to form a turning groove 21d, the trigger slide block 22 is provided with at least two limiting pins 22d which are arranged at intervals, the limiting pins 22d are embedded in the limiting groove 21c in a sliding manner, and one of the limiting pins 22d can slide into the turning groove 21 d. After the limit pin 22d slides into the crank groove 21d, the whole trigger slide 22 is in an inclined state, and the clamping part 22a on the trigger slide 22 is offset to the side of the crank groove 21d, so that the clamping joint 12 can pass through the clamping part 22a and be clamped with or separated from the trigger slide 22. When the clamping connector 12 moves towards the suction end 21a2 of the slideway 21a, the clamping connector 12 passes over the clamping part 22a, then the trigger slide block 22 is pushed to move towards the suction end 21a2 of the slideway 21a, after the trigger slide block 22 is separated from the turning groove 21d, the clamping part 22a returns to the original position, when the positioning piece 1 moves reversely, the clamping connector 12 and the clamping part 22a on the trigger slide block 22 form clamping limit, and the trigger slide block 22 can be driven to reset until the trigger slide block 22 partially slides into the turning groove 21d, the clamping part 22a tilts to one side for yielding, and the trigger slide block 22 is separated from the positioning piece 1; through the structure, the clamping connector 12 and the clamping part 22a can be skillfully clamped under the condition of not interfering, extrusion deformation is not needed, so that abrasion can be reduced, and the connection is stable and convenient to maintain. In this embodiment, the reset elastic member 24 is a tension spring, one end of the tension spring is connected to the mounting seat 21, the other end is connected to the bottom of the trigger slider 22, and the middle position of the crank-shaped groove 21d is located on the axis where the tension spring is located. The trigger slide block 22 forms a dead angle in the crank groove 21d, the trigger slide block 22 is locked in the crank groove 21d by the tension of the tension spring, so that the trigger slide block 22 is kept at the locking end 21a1 of the slide way 21a, when the clamping connector 12 on the positioning piece 1 triggers the trigger slide block 22 and pushes the trigger slide block 22 away from the crank groove 21d, the tension spring can enable the trigger slide block 22 to be kept at the suction end 21a2 of the slide way 21a by the tension, and therefore the stable state of the door plate is kept, and various utilization effects are achieved.

As shown in fig. 12, the positioning member 1 comprises a base 11, the base 11 is provided with a mounting hole 11a, the clamping connector 12 is columnar, the inner end of the clamping connector 12 is inserted into the mounting hole 11a, the outer end of the clamping connector 12 extends out of the base 11, and the mounting hole 11a is internally provided with an adjusting spring 13 with two ends respectively acting on the bottoms of the clamping connector 12 and the mounting hole 11 a; the telescopic connection of the clamping connector 12 is on the seat 11, when the trigger sliding block 22 positioned at the suction end 21a2 of the slideway 21a is abnormally separated from the clamping connector 12, the door plate and the positioning piece 1 are pushed again, the clamping connector 12 overcomes the acting force of the adjusting spring 13 by extruding the clamping connector 12, so that the clamping connector 12 is contracted inwards towards the mounting hole 11a, and then the clamping connector is clamped with the clamping part 22a of the trigger sliding block 22 after bypassing the clamping part 22a, the fault is solved simply and rapidly, and the maintenance is convenient and reliable.

Example two

As shown in fig. 4 and 5, the present embodiment is substantially the same as the first embodiment, except that the rotation damping structure 23 in the present embodiment includes a rack 23b fixedly provided on the mounting base 21 and a rotating body 23a connected to the trigger slider 22; the rotating body 23a has buffering damping and is hinged with the trigger slide block 22 through a connecting plate; the rotating body 23a is provided with a gear 23a1; the rack 23b is arranged along the length direction of the slideway 21a, and the gear 23a1 is meshed with the rack 23 b; the rotating body 23a is connected to the trigger slide block 22 and can move along with the trigger slide block, the rack 23b is fixed on the mounting seat 21, when the clamping connector 12 on the positioning piece 1 pushes the trigger slide block 22 to move from the clamping end 21a1 to the suction end 21a2 of the slide way 21a, the rotating body 23a and the gear 23a1 on the rotating body 23a are driven to move, the rack 23b is meshed with the gear 23a1 on the rotating body 23a, and damping is generated when the two relatively rotate, so that a buffering effect is achieved. Further, as shown in fig. 5, a housing 25 is fixedly arranged on the mounting seat 21, a flexible cover plate 26 is slidably connected to the housing 25, the cover plate 26 is located above the slideway 21a, one end of the cover plate 26 is connected with the trigger slide block 22, and the other end of the cover plate 26 can be rolled in the housing 25; the racks 23b are two and are respectively located at two sides of the slideway 21a, the number of the rotating bodies 23a is two, the two rotating bodies 23a are arranged side by side, and the gear 23a1 on each rotating body 23a is arranged corresponding to one of the racks 23 b. The cover plate 26 plays a role in dust prevention, and the design of the two rotating bodies 23a and the rack 23b can ensure the balance of stress and the stability of operation; one end of the rack 23b, which is close to the locking end 21a1 of the slideway 21a, is bent downwards in an arc; the tooth space is wide in upper part and narrow in lower part, when the rotating body 23a moves to the clamping end 21a1 of the slideway 21a along with the trigger sliding block 22, the trigger sliding block 22 inclines downwards, the gear 23a1 moves along with the trigger sliding block, and the bent shape of the rack 23b can ensure that the gear 23a1 and the rack 23b are always in stable fit connection.

Example III

As shown in fig. 6 and 7, the present embodiment is substantially the same as the second embodiment except that the specific installation position of the rack 23b in the rotation damping structure 23 and the specific structure of the rotating body 23a are different; in this embodiment, the number of racks 23b is two and are respectively located at two sides of the outside of the slideway 21a, the racks 23b are arranged along the length direction of the slideway 21a, the rotating body 23a is hinged with the trigger slide 22, and the rotating body 23a is provided with a rotating shaft 23a2 which is transversely arranged and two ends of which penetrate out of the rotating body 23 a; the rotation shaft 23a2 has gears 23a1 at both ends thereof, which are drivingly connected to the rack 23 b. When the clamping connector 12 on the positioning piece 1 pushes the trigger sliding block 22 to move from the clamping end 21a1 to the suction end 21a2 of the slideway 21a, a rotating body 23a is driven to move, the two ends of the rotating body 23a are respectively provided with a gear 23a1, and the racks 23b are meshed with the gears 23a1 to generate damping, so that a buffering effect is achieved; this further ensures compactness of the structure and operational stability.

Further, as shown in fig. 7, the mounting seat 21 is further provided with a rotating shaft 23c, the rotating shaft 23c is fixedly provided with a transmission gear 23c1 meshed with the gear 23a1, two ends of the rotating shaft 23c pass through two side walls of the slideway 21a, two ends of the rotating shaft 23c are fixedly provided with a speed change gear 23c2, the speed change gear 23c2 is meshed with the rack 23b, and the diameter of the transmission gear 23c1 is larger than the diameters of the gear 23a1 and the speed change gear 23c 2; by providing the speed change gear 23c2, the rotation speed of the gear 23a1 can be provided when the trigger slider 22 drives the rotation body 23a to move, thereby improving the buffering effect.

Example IV

As shown in fig. 8, the present embodiment is substantially the same as the second embodiment and the third embodiment, except that in the present embodiment, a housing 25 is fixedly provided on the mounting seat 21, a cover plate 26 is connected to the housing 25, the cover plate 26 is located above the slideway 21a, one end of the cover plate 26 is connected to the trigger slide 22, the other end of the cover plate 26 is connected to the housing 25, and one end of the cover plate 26 close to the trigger slide 22 is provided as a foldable corrugated structure.

Example five

As shown in fig. 9 and 10, the present embodiment is substantially the same as the first embodiment, except that in the present embodiment, the rotation damping structure 23 includes a rotating body 23a fixed on the mounting seat 21 and a rack 23b made of flexible plastic, the rotating body 23a has rotation damping, the output end of the rotating body 23a has a gear 23a1, the side wall of the slideway 21a is provided with a mounting groove 21b, the rack 23b is slidably embedded in the mounting groove 21b, the rack 23b is meshed with the gear 23a1, one end of the rack 23b is connected to the trigger slide 22, and the other end of the rack 23b can move along the inner wall of the slideway 21a and can bend and turn at the end of the slideway 21 a; when the clamping connector 12 on the positioning piece 1 pushes the trigger sliding block 22 to move from the clamping end 21a1 to the suction end 21a2 of the slideway 21a, the rack 23b is driven to move, and the rack 23b is meshed with the gear 23a1 on the fixed rotating body 23a to generate damping, so that a buffering effect is achieved; the rack 23b is made of flexible plastic, and can be bent and turned at the suction end 21a2 of the slideway 21a, and turned from one side of the slideway 21a to the other side, so that the whole length of the buffer assembly 2 can be further reduced.

Example six

As shown in fig. 11, this embodiment is substantially the same as the fourth embodiment, except that the rotation damping structure 23 includes a chain 23d, the chain 23d includes a rack 23b in the fourth embodiment, the chain 23d is bendable only to one side by the structural design of the link plate, one end of the chain 23d is connected to the trigger slide 22, and the other end of the chain 23d is movable along the inner wall of the slide 21a and bendable and turnable at the end of the slide 21 a; when the clamping connector 12 on the positioning piece 1 pushes the trigger sliding block 22 to move from the clamping end 21a1 to the suction end 21a2 of the slideway 21a, the chain 23d is driven to move, and the chain 23d is meshed with the gear 23a1 on the fixed rotating body 23a to generate damping, so that a buffering effect is achieved; the end of the chain 23d reaches the suction end 21a2 of the slideway 21a, and then bends and turns from one side of the slideway 21a to the other side, so that the whole length of the whole buffer assembly 2 is reduced, and the whole door-inhale structure is more compact.

Example seven

As shown in fig. 13, the present embodiment is substantially the same as the first embodiment, except that the positioning member 1 in the present embodiment includes a rod 14, a clip 12 is fixedly connected to one end of the rod 14, the clip 12 is cone-shaped, hemispherical, olecranon-shaped or hoe-shaped, preferably cone-shaped, the clip 12 and the rod 14 are integrally formed, and the other end of the rod 14 is provided with a mounting plate 15; the rod body 14 is connected to the door panel through the mounting plate 15, and is inserted into the mounting seat 21 through the clamping connector 12 to push the trigger sliding block 22 and realize clamping connection with the clamping connection part 22 a.

The specific embodiments described herein are offered by way of example only to illustrate the spirit of the invention. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although 1, a positioning member is used more herein; 11. a base; 11a, mounting holes; 12. a clamping joint; 13. an adjusting spring; 14. a rod body; 15. a mounting plate; 2. a buffer assembly; 21. a mounting base; 21a, a slideway; 21a1, a locking end; 21a2, a suction end; 21b, mounting grooves; 21c, a limit groove; 21d, a crutch groove; 22. triggering a sliding block; 22a, a clamping part; 22b, a connection part; 22c, a clamping groove; 22d, a limiting pin; 23. a rotary damping structure; 23a, a rotating body; 23a1, gears; 23a2, a rotation shaft; 23b, a rack; 23c, a rotating shaft; 23c1, a transmission gear; 23c2, a change gear; 23d, a chain; 24. a return elastic member; 25. a housing; 25a, a yielding gap; 25b, a chute; 26. a cover plate; 26a, flaps, etc., but does not exclude the possibility of using other terms. These terms are used merely for convenience in describing and explaining the nature of the invention; they are to be interpreted as any additional limitation that is not inconsistent with the spirit of the present invention.

Claims

1. The door stopper structure comprises positioning pieces (1) and buffer assemblies (2) which are oppositely arranged, and is characterized in that the positioning pieces (1) are provided with clamping joints (12); the buffer assembly (2) comprises a mounting seat (21) and a reset elastic piece (24), wherein a slideway (21 a) is arranged on the mounting seat (21), a trigger sliding block (22) capable of moving back and forth is arranged on the slideway (21 a), and the trigger sliding block (22) is provided with a clamping part (22 a) connected with the clamping connector (12); one end of the slideway (21 a) facing the positioning piece (1) is a locking end (21 a 1), the other end is a sucking end (21 a 2), and the locking joint (12) can be locked or separated from the locking part (22 a) of the trigger sliding block (22) at the locking end (21 a 1) of the slideway (21 a); a rotary damping structure (23) capable of generating resistance in the process of moving the trigger slide block (22) from the clamping end (21 a 1) of the slide way (21 a) to the suction end (21 a 2) is arranged between the mounting seat (21) and the trigger slide block (22); the reset elastic piece (24) has elastic reset force for pulling the trigger sliding block (22) from the locking end (21 a 1) of the slideway (21 a) to the suction end (21 a 2); the rotary damping structure (23) comprises a rack (23 b) fixedly arranged on the mounting seat (21) and a rotary body (23 a) connected to the trigger sliding block (22); the rotating body (23 a) has buffering damping and is hinged with the trigger sliding block (22) through a connecting plate; the rotating body (23 a) is provided with a gear (23 a 1); the rack (23 b) is arranged along the length direction of the slideway (21 a), the gear (23 a 1) is meshed with the rack (23 b), one end of the rack (23 b) close to the locking end (21 a 1) of the slideway (21 a) is bent downwards in an arc line, and the tooth space is wider at the upper part and narrower at the lower part.

2. The door stopper structure according to claim 1, wherein a housing (25) is fixedly arranged on the mounting seat (21), a flexible cover plate (26) is slidably connected to the housing (25), the cover plate (26) is located above the slideway (21 a), one end of the cover plate (26) is connected with the trigger sliding block (22), and the other end of the cover plate (26) can be rolled in the housing (25); the number of the rotating bodies (23 a) is two, the two rotating bodies (23 a) are arranged side by side, and the gear (23 a 1) on each rotating body (23 a) is arranged corresponding to one of the racks (23 b).

3. The door stopper structure comprises positioning pieces (1) and buffer assemblies (2) which are oppositely arranged, and is characterized in that the positioning pieces (1) are provided with clamping joints (12); the buffer assembly (2) comprises a mounting seat (21) and a reset elastic piece (24), wherein a slideway (21 a) is arranged on the mounting seat (21), a trigger sliding block (22) capable of moving back and forth is arranged on the slideway (21 a), and the trigger sliding block (22) is provided with a clamping part (22 a) connected with the clamping connector (12); one end of the slideway (21 a) facing the positioning piece (1) is a locking end (21 a 1), the other end is a sucking end (21 a 2), and the locking joint (12) can be locked or separated from the locking part (22 a) of the trigger sliding block (22) at the locking end (21 a 1) of the slideway (21 a); a rotary damping structure (23) capable of generating resistance in the process of moving the trigger slide block (22) from the clamping end (21 a 1) of the slide way (21 a) to the suction end (21 a 2) is arranged between the mounting seat (21) and the trigger slide block (22); the reset elastic piece (24) has elastic reset force for pulling the trigger sliding block (22) from the locking end (21 a 1) of the slideway (21 a) to the suction end (21 a 2); the rotary damping structure (23) comprises a rack (23 b) fixedly arranged on the mounting seat (21) and a rotary body (23 a) with rotary damping; the rack (23 b) is arranged along the length direction of the slideway (21 a), the rotating body (23 a) is hinged with the trigger sliding block (22), and the rotating body (23 a) is provided with a rotating shaft (23 a 2) which is transversely arranged; the end of the rotating shaft (23 a 2) is provided with a gear (23 a 1) in transmission connection with the rack (23 b), the mounting seat (21) is also provided with a rotating shaft (23 c), the rotating shaft (23 c) is fixedly provided with a transmission gear (23 c 1) meshed with the gear (23 a 1), the end of the rotating shaft (23 c) penetrates through the side wall of the slideway (21 a) and the end of the rotating shaft (23 c) is fixedly provided with a speed change gear (23 c 2), the speed change gear (23 c 2) is meshed with the rack (23 b), and the diameter of the transmission gear (23 c 1) is larger than that of the gear (23 a 1) and that of the speed change gear (23 c 2).

4. A door stopper structure according to claim 3, wherein the number of the racks (23 b) is two and are respectively located at two outer sides of the slide way (21 a), and both ends of the rotating shaft (23 a 2) are penetrated out of the rotating body (23 a); both ends of the rotating shaft (23 a 2) are provided with gears (23 a 1) in transmission connection with the racks (23 b).

5. The door stopper structure according to claim 4, wherein both ends of the rotating shaft (23 c) pass through both side walls of the slide way (21 a) and both ends of the rotating shaft (23 c) are fixedly provided with a speed change gear (23 c 2).

6. The door stopper structure comprises positioning pieces (1) and buffer assemblies (2) which are oppositely arranged, and is characterized in that the positioning pieces (1) are provided with clamping joints (12); the buffer assembly (2) comprises a mounting seat (21) and a reset elastic piece (24), wherein a slideway (21 a) is arranged on the mounting seat (21), a trigger sliding block (22) capable of moving back and forth is arranged on the slideway (21 a), and the trigger sliding block (22) is provided with a clamping part (22 a) connected with the clamping connector (12); one end of the slideway (21 a) facing the positioning piece (1) is a locking end (21 a 1), the other end is a sucking end (21 a 2), and the locking joint (12) can be locked or separated from the locking part (22 a) of the trigger sliding block (22) at the locking end (21 a 1) of the slideway (21 a); a rotary damping structure (23) capable of generating resistance in the process of moving the trigger slide block (22) from the clamping end (21 a 1) of the slide way (21 a) to the suction end (21 a 2) is arranged between the mounting seat (21) and the trigger slide block (22); the reset elastic piece (24) has elastic reset force for pulling the trigger sliding block (22) from the locking end (21 a 1) of the slideway (21 a) to the suction end (21 a 2); the rotary damping structure (23) comprises a rotary body (23 a) fixedly arranged on the mounting seat (21) and a rack (23 b) made of flexible plastic, the rotary body (23 a) is provided with rotary damping, the output end of the rotary body (23 a) is provided with a gear (23 a 1), the side wall of the slideway (21 a) is provided with a mounting groove (21 b), the rack (23 b) is slidably embedded in the mounting groove (21 b), the rack (23 b) is meshed with the gear (23 a 1), one end of the rack (23 b) is connected to the trigger sliding block (22), and the other end of the rack (23 b) can move along the inner wall of the slideway (21 a) and bend and turn at the end of the slideway (21 a).

7. The door stopper structure comprises positioning pieces (1) and buffer assemblies (2) which are oppositely arranged, and is characterized in that the positioning pieces (1) are provided with clamping joints (12); the buffer assembly (2) comprises a mounting seat (21) and a reset elastic piece (24), wherein a slideway (21 a) is arranged on the mounting seat (21), a trigger sliding block (22) capable of moving back and forth is arranged on the slideway (21 a), and the trigger sliding block (22) is provided with a clamping part (22 a) connected with the clamping connector (12); one end of the slideway (21 a) facing the positioning piece (1) is a locking end (21 a 1), the other end is a sucking end (21 a 2), and the locking joint (12) can be locked or separated from the locking part (22 a) of the trigger sliding block (22) at the locking end (21 a 1) of the slideway (21 a); a rotary damping structure (23) capable of generating resistance in the process of moving the trigger slide block (22) from the clamping end (21 a 1) of the slide way (21 a) to the suction end (21 a 2) is arranged between the mounting seat (21) and the trigger slide block (22); the reset elastic piece (24) has elastic reset force for pulling the trigger sliding block (22) from the locking end (21 a 1) of the slideway (21 a) to the suction end (21 a 2); the rotary damping structure (23) comprises a chain (23 d) and a rotary body (23 a) fixedly arranged on the mounting seat (21), the rotary body (23 a) is provided with rotary damping, the output end of the rotary body (23 a) is provided with a gear (23 a 1) meshed with the chain (23 d), the chain (23 d) can be bent to one side only, one end of the chain (23 d) is connected to the trigger sliding block (22), and the other end of the chain (23 d) can move along the inner wall of the slideway (21 a) and can be bent and turned at the end part of the slideway (21 a).

8. The door stopper structure according to claim 1 or 2, wherein the sliding track (21 a) is a long-strip-shaped groove, two side walls of the groove are provided with limiting grooves (21 c) along the length direction of the sliding groove (25 b), one end of the limiting groove (21 c) close to the locking end (21 a 1) of the sliding track (21 a) is bent and extended to form a turning groove (21 d), the triggering slide block (22) is provided with at least two limiting pins (22 d) arranged at intervals, the limiting pins (22 d) are slidably embedded in the limiting grooves (21 c), and one of the limiting pins (22 d) can slide into the turning groove (21 d).

9. The door stopper structure according to claim 8, wherein the return elastic member (24) is a tension spring, one end of the tension spring is connected to the mounting seat (21), the other end of the tension spring is connected to the bottom of the trigger slider (22), and the middle position of the crank-shaped groove (21 d) is located on the axis where the tension spring is located.

10. The door stopper structure according to claim 1 or 2, wherein the positioning member (1) comprises a base body (11), a mounting hole (11 a) is formed in the base body (11), the clamping connector (12) is columnar, the inner end of the clamping connector (12) is inserted into the mounting hole (11 a), the outer end of the clamping connector (12) extends out of the base body (11), and an adjusting spring (13) with two ends respectively acting on the clamping connector (12) and the bottom of the mounting hole (11 a) is further arranged in the mounting hole (11 a).

11. Door stopper structure according to claim 1 or 2, characterized in that the positioning element (1) comprises a rod body (14), the clamping connector (12) is fixedly connected to one end of the rod body (14), the clamping connector (12) is cone-shaped, hemispherical, olecranon-hook-shaped or hoe-shaped, the clamping connector (12) and the rod body (14) are integrally formed, and the other end of the rod body (14) is provided with a mounting plate (15).

12. The door stopper structure according to claim 3, 4 or 5, wherein the sliding track (21 a) is a long-strip-shaped groove, two side walls of the groove are provided with limiting grooves (21 c) along the length direction of the sliding groove (25 b), one end of the limiting groove (21 c) close to the locking end (21 a 1) of the sliding track (21 a) is bent and extended to form a turning groove (21 d), the triggering slide block (22) is provided with at least two limiting pins (22 d) arranged at intervals, the limiting pins (22 d) are slidably embedded in the limiting grooves (21 c), and one of the limiting pins (22 d) can slide into the turning groove (21 d).

13. The door stopper structure according to claim 12, wherein the return elastic member (24) is a tension spring, one end of the tension spring is connected to the mounting seat (21), the other end of the tension spring is connected to the bottom of the trigger slider (22), and the middle position of the crank-shaped groove (21 d) is located on the axis where the tension spring is located.

14. The door stopper structure according to claim 3, 4 or 5, wherein the positioning member (1) comprises a base body (11), a mounting hole (11 a) is formed in the base body (11), the clamping connector (12) is columnar, the inner end of the clamping connector (12) is inserted into the mounting hole (11 a), the outer end of the clamping connector (12) extends out of the base body (11), and an adjusting spring (13) with two ends respectively acting on the bottom of the clamping connector (12) and the bottom of the mounting hole (11 a) is further arranged in the mounting hole (11 a).

15. The door stopper structure according to claim 3, 4 or 5, wherein the positioning member (1) comprises a rod body (14), the clamping connector (12) is fixedly connected to one end of the rod body (14), the clamping connector (12) is cone-shaped, hemispherical, olecranon-shaped or hoe-shaped, the clamping connector (12) and the rod body (14) are integrally formed, and the other end of the rod body (14) is provided with a mounting plate (15).

16. The door stopper structure according to claim 6, wherein the sliding way (21 a) is a long-strip-shaped groove, two side walls of the groove are provided with limiting grooves (21 c) along the length direction of the sliding way (25 b), one end of the limiting groove (21 c) close to the clamping end (21 a 1) of the sliding way (21 a) is bent and extended to form a turning groove (21 d), the triggering slide block (22) is provided with at least two limiting pins (22 d) arranged at intervals, the limiting pins (22 d) are slidably embedded in the limiting grooves (21 c), and one of the limiting pins (22 d) can slide into the turning groove (21 d).

17. The door stopper structure according to claim 16, wherein the return elastic member (24) is a tension spring, one end of the tension spring is connected to the mounting seat (21), the other end of the tension spring is connected to the bottom of the trigger slider (22), and the middle position of the crank-shaped groove (21 d) is located on the axis where the tension spring is located.

18. The door stopper structure according to claim 6, wherein the positioning member (1) comprises a base (11), a mounting hole (11 a) is formed in the base (11), the clamping connector (12) is columnar, the inner end of the clamping connector (12) is inserted into the mounting hole (11 a), the outer end of the clamping connector (12) extends out of the base (11), and an adjusting spring (13) with two ends acting on the bottom of the clamping connector (12) and the bottom of the mounting hole (11 a) is further arranged in the mounting hole (11 a).

19. The door stopper structure according to claim 6, wherein the positioning member (1) comprises a rod body (14), the clamping connector (12) is fixedly connected to one end of the rod body (14), the clamping connector (12) is cone-shaped, hemispherical, olecranon-shaped or hoe-shaped, the clamping connector (12) and the rod body (14) are integrally formed, and a mounting plate (15) is arranged at the other end of the rod body (14).

20. The door stopper structure according to claim 7, wherein the sliding way (21 a) is a long-strip-shaped groove, two side walls of the groove are provided with limiting grooves (21 c) along the length direction of the sliding way (25 b), one end of the limiting groove (21 c) close to the clamping end (21 a 1) of the sliding way (21 a) is bent and extended to form a turning groove (21 d), the triggering slide block (22) is provided with at least two limiting pins (22 d) arranged at intervals, the limiting pins (22 d) are slidably embedded in the limiting grooves (21 c), and one of the limiting pins (22 d) can slide into the turning groove (21 d).

21. The door stopper structure according to claim 20, wherein the return elastic member (24) is a tension spring, one end of the tension spring is connected to the mounting seat (21), the other end of the tension spring is connected to the bottom of the trigger slider (22), and the middle position of the crank-shaped groove (21 d) is located on the axis where the tension spring is located.

22. The door stopper structure according to claim 7, wherein the positioning member (1) comprises a base (11), a mounting hole (11 a) is formed in the base (11), the clamping connector (12) is columnar, the inner end of the clamping connector (12) is inserted into the mounting hole (11 a), the outer end of the clamping connector (12) extends out of the base (11), and an adjusting spring (13) with two ends acting on the bottom of the clamping connector (12) and the bottom of the mounting hole (11 a) is further arranged in the mounting hole (11 a).

23. The door stopper structure according to claim 7, wherein the positioning member (1) comprises a rod body (14), the clamping connector (12) is fixedly connected to one end of the rod body (14), the clamping connector (12) is cone-shaped, hemispherical, olecranon-shaped or hoe-shaped, the clamping connector (12) and the rod body (14) are integrally formed, and a mounting plate (15) is arranged at the other end of the rod body (14).