A concealed door catch structure

Abstract

The present invention provides a hidden door stopper structure, which belongs to the technical field of positioning devices. It solves the problems of poor stability and high failure rate of existing door stoppers. The hidden door stopper structure includes a buffer component and a positioning component. The buffer component includes a mounting seat with a slide and a sliding seat slidably arranged on the slide. One end of the slide is a stop end with a slot, and a block is provided on the sliding seat. The sliding seat is also rotatably connected with a locking block. The positioning component includes a positioning plate that can be engaged with or disengaged from the locking block at the stop end of the slide. When the positioning plate is disengaged from the locking block at the stop end, the positioning plate can cause the locking block to squeeze the block, and the block is pressed into the slot under the squeezing of the locking block. The hidden door stopper structure has high stability and low failure rate.

Description

Technical Field

[0001] The invention belongs to the technical field of positioning devices and relates to a hidden door stopper structure. Background Art

[0002] Door suction, also commonly known as door touch, is a device that sucks and holds the door in place after it is opened to prevent the door from being closed by wind or touching it. Door suction is divided into two types: permanent magnetic door suction and electromagnetic door suction. Permanent magnetic door suction is generally used in ordinary doors and can only be controlled manually. This type of door suction will generate a greater impact force when the door is opened and adsorbed, has a louder noise, and has a poor operating feel.

[0003] In response to the above problems, a Chinese invention patent application (application number: 201710730897.7) discloses a door stop structure, including a positioning member and a buffer assembly arranged relatively to each other, the positioning member having a clamping joint; the buffer assembly including a mounting seat and a reset elastic member, the mounting seat being provided with a slideway, the slideway being provided with a trigger slider capable of reciprocating movement, the trigger slider having a clamping portion connected to the clamping joint; one end of the slideway facing the positioning member is a clamping end, and the other end is a suction end, the clamping joint can be clamped or disengaged from the clamping portion of the trigger slider at the clamping end of the slideway; a rotation damping structure capable of generating resistance during the movement of the trigger slider from the clamping end of the slideway to the suction end is provided between the mounting seat and the trigger slider; the reset elastic member has an elastic reset function to pull the trigger slider from the clamping end of the slideway to the suction end. Positioning force, the door suction structure has a certain buffering effect, but after the door body is closed, the trigger slider needs to be positioned at the stopping end to wait for the next opening of the door body. At this time, the trigger slider is always subjected to the elastic force of the elastic part, and the trigger slider is only hooked in the inflection groove by the limit pin, and the trigger slider is in a deflected state. Under the action of the elastic part, the trigger slider is unstable. When it is stepped on or vibrated by the outside world, the limit pin of the trigger slider is easy to break away from the inflection groove, causing the trigger slider to slide to the suction end. At this time, when the door body is opened, there will be no buffering. At the same time, in this unexpected situation, in order to make the door body positioning assembly form a card connection with the trigger slider again, the card joint of the positioning assembly needs to be able to extend and retract up and down, and it is also necessary to include components such as an adjusting spring, which makes the positioning assembly large in size and not compact enough. Summary of the invention

[0004] The purpose of the present invention is to address the above-mentioned problems in the prior art and to propose a hidden door stopper structure to solve the problems of poor stability and high failure rate.

[0005] The objectives of the present invention can be achieved through the following technical solutions: a hidden door stop structure, including a buffer component and a positioning component, the buffer component including a mounting seat with a slide and a sliding seat slidably arranged on the slide, one end of the slide is a stopping end with a slot, the sliding seat has a blocking block, and is characterized in that a locking block is also rotatably connected to the sliding seat, the positioning component includes a positioning plate that can be engaged with or disengaged from the locking block at the stopping end of the slide, when the positioning plate is disengaged from the locking block at the stopping end, the positioning plate can cause the locking block to squeeze the blocking block, and the blocking block is pressed into the slot under the squeezing of the locking block.

[0006] The mounting seat is used for being fixedly mounted on the ground, and the positioning assembly is used for being mounted on the door body, wherein the positioning plate is mounted on the side or bottom edge of the lower part of the door body, and the door body is attracted by the positioning plate of the positioning assembly being engaged with the locking block on the sliding seat. Specifically, when the door body is opened, the positioning plate approaches the mounting seat and is engaged with the locking block on the sliding seat at the stopping end of the slide, and the sliding seat gradually buffers and attracts the door body by moving away from the stopping end on the slide. When the door needs to be closed, external force is applied to the door body, and the door body drives the sliding seat to move toward the stopping end through the positioning plate. When the sliding seat is at the stopping end of the slide and the positioning plate is disengaged from the locking block, the positioning plate can cause the locking block to squeeze the blocking block, thereby squeezing the blocking block into the blocking groove of the slide, that is, After the positioning plate on the door body is separated from the locking block, the locking block can keep the block in the slot, thereby continuously positioning the sliding seat, avoiding the block from being separated from the slot and causing the sliding seat to shift due to external forces generated by impact, footsteps, etc., so that the buffer assembly maintains sufficient stability before being clamped with the positioning plate. Of course, it also avoids the sliding seat shifting due to instability. When the door body is opened with a certain force, the positioning plate and the locking block have a large collision due to the lack of sliding process of the sliding seat, which is prone to malfunction. At the same time, the locking block can be clamped with the positioning plate to realize the suction of the door body, and can also squeeze the block to position after the positioning plate is separated. There is no need to set up additional positioning or clamping components, so the structure is also more compact.

[0007] In the above-mentioned hidden door stopper structure, when the positioning plate is engaged with the locking block at the locking end, the positioning plate can release the squeeze on the block. That is, after the positioning plate and the locking block are engaged, they need to slide. At this time, the squeeze positioning of the locking block on the block is also released by the positioning plate, without the need for other additional mechanisms or components, thereby making the operation more convenient and the structure more compact. Of course, this structure also ensures that as long as the positioning plate is not engaged with the locking block, the locking block can always squeeze and position the block, thereby ensuring the stability of the sliding seat when the positioning plate and the locking block are not engaged.

[0008] In the above-mentioned hidden door stopper structure, the sliding seat has a strip-shaped elastic foot, and the clamping block is located on the side of the elastic foot. When the sliding seat is located at the clamping end of the slideway, the clamping block is opposite to the clamping slot, and when the positioning plate is separated from the locking block, it can drive the locking block to rotate and squeeze the elastic foot, so that the clamping block is pressed tightly in the clamping slot. The elastic foot is strip-shaped. When the sliding seat is located at the clamping end and the clamping block is opposite to the clamping slot, the side of the sliding seat facing the clamping end still has space for installing the locking block. When the positioning plate is separated from the locking block, it can drive the locking block to rotate. After the locking block rotates, it can squeeze the elastic foot, so that the elastic foot is deformed, and the clamping block is clamped into the clamping slot. After the rotation, the locking block can continuously squeeze and position the clamping block to ensure stability.

[0009] In the above-mentioned hidden door stopper structure, there are two elastic feet and two card slots, and the two card slots are respectively located on the side walls of the slideway, the card block is located on the outer side of the elastic foot, and the locking block is located between the two elastic feet. Under the pressure of the locking block, the two elastic feet can be deformed outward so that the card block is pressed tightly in the card slot. The two elastic feet are symmetrically arranged, and can be simultaneously pressed outward into the card slot under the pressure of the same locking block, so that the sliding seat has sufficient stability. When the positioning plate and the locking block are engaged, the locking block contacts and presses the card block. At this time, the elastic foot can be reset by its own elastic force, so that the card block is separated from the card slot. The structure is simple and compact. Of course, in the actual processing process, the elastic foot and the card slot can also be one, which can also achieve the positioning of the sliding seat.

[0010] In the above-mentioned hidden door stopper structure, the locking block is disc-shaped, and the lower side of the locking block is rotatably connected to the upper side of the sliding seat. The outer edge of the locking block has two extrusion protrusions. When the positioning plate is separated from the locking block and the locking block is rotated, the two extrusion protrusions respectively squeeze the inner side surfaces of the two elastic feet outward. After the positioning plate is separated from the locking block and the locking block is rotated into place, the distance between the extrusion protrusion and the side wall of the slideway can just accommodate an elastic foot, so the card block is stably squeezed and positioned in the card slot, and the two extrusion protrusions located on the locking block also enable the two card blocks to be simultaneously inserted into the card slot, with good synchronization, ensuring that the two card blocks are squeezed and positioned by the extrusion protrusions at the same time when the positioning plate is separated from the locking block, thereby ensuring the stability of the sliding seat.

[0011] In the above-mentioned hidden door stopper structure, at least one of the extrusion protrusions has a straight positioning surface. When the block is pressed into the slot, the positioning surface is pressed against the inner side surface of the elastic foot, and the positioning surface and the outer peripheral surface of the locking block are smoothly transitioned. The smooth transition between the positioning surface and the outer peripheral surface of the locking block makes the rotation of the locking block smoother, that is, the positioning plate is relatively smooth when engaging and disengaging with the locking block, while reducing the wear on the elastic foot and ensuring stability. The positioning surface is a plane, so when the extrusion protrusion squeezes and positions the block, the positioning surface can achieve the positioning of the locking block by fitting against the side wall of the slideway, so that the locking block is stably squeezed on the elastic foot, thereby improving the positioning stability of the sliding seat.

[0012] In the above-mentioned hidden door stopper structure, the locking block has a protruding clamping portion on the upper side surface, and the clamping portion has a clamping concave surface. The other end of the slide is the suction end. When the sliding seat is in the sliding process or is located at the suction end of the slide, the clamping concave surface faces the suction end of the slide. The positioning plate has a clamping column on the lower side surface, and the positioning plate and the locking block are clamped together by the clamping column and the clamping concave surface. When the positioning plate and the locking block form a snap connection, they can maintain a continuous suction and positioning of the door body at the suction end. During the sliding process of the sliding seat toward the suction end, the clamping column needs to be pulled by the clamping concave surface of the clamping part, so that the door body is gradually sucked together. When the sliding seat is located at the suction end, the clamping concave surface of the clamping part needs to be continuously pulled to hold the clamping column to continuously suction and position the door body. When the sliding seat moves toward the stop end, the door body pulls the sliding seat to move by the clamping column against the clamping concave surface. In the above process, the clamping concave surface needs to face the suction end, so that the clamping of the clamping part and the clamping column is more stable.

[0013] In the above-mentioned hidden door stopper structure, the lower side surface of the locking block is rotatably connected to the sliding seat through a rotating column. When the sliding seat is in the sliding process or is located at the suction end of the slide, the clamping portion and the rotating column are staggered in the length direction of the slide, and the elastic foot and the clamping block are squeezed between the outer peripheral surface of the locking block and the inner side surface of the slide. The locking block is prevented from being disengaged from the center line of the slide when the sliding seat is at the stop end and the block is opposite to the slot, and the side wall of the slide loses the restriction on the block and the elastic foot. Therefore, the locking block can be rotated under the action of the clamping column, so that the extrusion convex part squeezes the block into the slot, and the clamping concave surface of the clamping part faces the side of the slide after rotation. Therefore, the clamping column can be disengaged from the clamping part, that is, the positioning plate is disengaged from the locking block.

[0014] In the above-mentioned hidden door stopper structure, the upper side surface of the locking block is also provided with a protruding reset portion. When the extrusion protrusion squeezes the card block into the card slot, the clamping portion and the rotating column are both located on one side of the center line of the slide, and the reset portion is located on the other side of the center line of the slide. The lower side surface of the positioning plate is also provided with a protruding pushing portion. The positioning plate drives the locking block to rotate and releases the squeezing of the elastic foot by pushing the reset portion through the pushing portion. When the card block is squeezed in the card slot, the positioning plate and the locking block are in a separated state. At this time, the clamping part and the rotating column are both located on one side of the center line of the slide, and the reset part is located on the other side of the center line of the slide, that is, the reset part and the rotating column are deviated from each other in the length direction of the slide. When the positioning plate is close to the locking block, the pushing part on the positioning plate can push the reset part toward the suction end, so that the locking block rotates in the opposite direction. The card block loses the extrusion positioning of the extrusion convex part and disengages from the card slot under the elastic force of the elastic foot. At the same time, after the locking block rotates in the opposite direction, the clamping part can move and make the clamping concave surface opposite to the clamping column, that is, the positioning plate and the locking block are clamped.

[0015] In the above-mentioned hidden door stopper structure, when the sliding seat is in the sliding process or at the suction end of the slideway, the reset portion is located on the side of the clamping portion facing the suction end. After the positioning plate and the locking block are clamped, the clamping column is located between the clamping portion and the reset portion, that is, the reset portion limits the clamping column to prevent the clamping column from moving toward the suction end and separating from the clamping portion, thereby ensuring the clamping stability of the positioning plate and the locking block.

[0016] In the above-mentioned hidden door stopper structure, the lower side of the positioning plate is also provided with an auxiliary pull block, and when the sliding seat is located at the suction end of the slideway, the positioning plate can be clamped with the locking block by the auxiliary pull block against the clamping concave surface. The positioning plate has not yet been clamped with the locking block, but due to human factors, the locking block rotates and loses the squeeze on the clamping block. At this time, the sliding seat moves to the suction end, and the clamping concave surface of the clamping part faces the suction end. At this time, the clamping column is blocked by the clamping part and is difficult to move to the opposite side of the clamping concave surface, that is, the positioning plate is difficult to clamp with the locking block through the clamping column. Therefore, an auxiliary pull block is set on the positioning plate. After the positioning plate is close to the sliding seat, the auxiliary pull block can be clamped with the clamping part, which can not only realize the suction positioning of the door body, but also can pull the sliding seat to move through the auxiliary pull block when closing the door, and when the clamping block is opposite to the clamping groove, the locking block rotates, so that the operation of the buffer assembly returns to the correct track.

[0017] In the above-mentioned hidden door stopper structure, the positioning assembly also includes a connecting seat, one end of the positioning plate is rotatably connected to the connecting seat, and when the positioning plate is opposite to the mounting seat, the auxiliary pull block is located on the side of the clamping column facing the suction end, and the clamping part also has a guide convex surface facing the stopping end when the locking block is located at the suction end. Under the guiding action of the guide convex surface on the auxiliary pull block, the positioning plate can be rotated so that the auxiliary pull block slides from the side of the clamping part, and the connecting seat is also provided with a spring rod that can reset and rotate the positioning plate and make the auxiliary pull block opposite to the clamping concave surface. The positioning plate can be deflected by a certain angle relative to the locking block. Therefore, when the positioning plate is close to the locking block, the auxiliary pull block can abut against the guiding convex surface of the clamping part. The guiding convex surface can guide the auxiliary pull block to deflect the positioning plate. At this time, the auxiliary pull block can slide over the side of the clamping part. When the auxiliary pull block completely passes through and loses the support of the side clamping block, the positioning plate can be deflected in the opposite direction under the action of the spring rod, so that the auxiliary pull block is opposite to the clamping concave surface, that is, the positioning plate is clamped with the locking block through the abutment between the auxiliary pull block and the clamping concave surface.

[0018] In the above-mentioned hidden door stopper structure, the guide convex surface includes a guide arc surface and a guide plane located at one end of the guide arc surface, one end of the guide plane is inclined toward the suction end, the upper side surface of the locking block is also provided with a guide convex portion, the guide convex portion is provided with a guide concave surface, a guide channel is formed between the guide concave surface and the guide plane, and the above-mentioned spring rod makes the auxiliary pull block face the clamping concave surface after the auxiliary pull block passes through the guide channel. The guide arc surface deflects and guides the auxiliary pull block in the initial stage of abutting against the auxiliary pull block, and then guides the auxiliary pull block into the guide channel through the guide plane, wherein the guide convex portion can prevent the positioning plate from deflecting excessively, that is, limit the moving direction of the auxiliary pull block, so as to accurately guide the auxiliary pull block between the clamping portion and the reset portion.

[0019] In the above-mentioned hidden door stopper structure, the lower side of the connecting seat has a groove, the upper side of the positioning plate has a boss, the boss is embedded in the groove, the spring rod is arranged in the groove, the two ends of the spring rod are respectively located between the two side groove walls of the groove and the two side sides of the boss, and the two ends of the spring rod are both arched inward and respectively abut against the two side sides of the boss. The boss cooperates with the groove to limit the deflection angle of the positioning plate, avoiding the positioning plate from swinging at a large angle, so that the clamping column can be normally clamped and disengaged from the clamping part during normal use, and the two ends of the spring rod are symmetrically arranged. When the positioning plate is not subjected to deflection force, the two ends of the spring rod make the boss located in the center of the groove, so that the positioning plate remains stable.

[0020] In the above-mentioned hidden door stopper structure, the positioning plate is an elastic sheet, the auxiliary pull block is in the shape of an elongated strip, and one end face of the auxiliary pull block is a push arc surface, and when the positioning plate is opposite to the mounting seat, the push arc surface faces the clamping portion. The positioning plate is an elastic sheet, so the positioning plate can be bent and reset, that is, when the positioning plate is stuck and difficult to rotate, the push arc surface of the auxiliary pull block can directly act on the clamping portion, and under the action of the push arc surface, the end of the positioning plate can be bent upward in an arc shape until the auxiliary pull block passes over the clamping portion, and then reset under its own elastic force, so that the auxiliary pull block is clamped on the clamping concave surface of the clamping portion.

[0021] In the above-mentioned hidden door stopper structure, the mounting seat has two guide rods arranged along the length direction of the slideway, the sliding seat is located between the two guide rods, and the two edges of the sliding seat are provided with guide sleeves, the two guide sleeves are respectively slidably sleeved on the two guide rods, and the two guide rods are sleeved with a coil spring, one end of the coil spring presses on the guide sleeve, and the other end presses on the end of the guide rod facing the stop end. The guide sleeve cooperates with the guide rod to guide the sliding seat, so that the sliding seat moves accurately and the position after moving into position is accurate, so that the positioning plate and the locking block can be accurately engaged, and at the same time, the relative position of the clamping block and the clamping slot is more accurate, thereby improving stability.

[0022] In the above-mentioned hidden door stopper structure, the guide rod is tubular, and a clearance notch is provided along the length direction on the side of the guide rod facing the sliding seat, and a columnar guide portion is provided on the inner wall of the guide sleeve along the axial direction, and the guide portion passes through the clearance notch and slides with the inner wall of the guide rod. This structure allows a larger contact area between the guide sleeve and the guide rod, thereby improving the stability of the sliding seat. Of course, in the actual processing process, the coil spring can also be arranged inside the guide rod, so that one end of the coil spring presses against the guide portion and the other end presses against the guide rod.

[0023] In the above-mentioned hidden door stopper structure, the other end of the slideway is the suction end, and a buffer mechanism is also provided between the mounting seat and the sliding seat to generate damping for the sliding seat when the sliding seat moves toward the suction end. The buffer mechanism includes a rotary damper fixed on the sliding seat and a rack fixed on the mounting seat along the length direction. A damping gear is provided at the output end of the rotary damper, and the damping gear is meshed with the rack or the damping gear is meshed with the rack through a gear member. When the positioning plate and the locking block are engaged at the stop end of the slideway, the coil spring provides elastic thrust to make the sliding seat move toward the suction end. Since the damping gear is meshed with the rack or the damping gear is meshed with the rack through a gear member, during the movement of the sliding seat, the rack drives the damping gear to rotate or the rack drives the damping gear to rotate through the gear member, and a certain damping is generated when the damping gear rotates, so that the sliding seat can slowly move toward the suction end, thereby playing a buffering role.

[0024] In the above-mentioned hidden door stopper structure, a strip groove is opened on the sliding seat along the length direction of the slide, and the strip groove is located on the side of the damping gear facing the suction end, and the gear part includes gear body one, gear body two and a columnar connecting part, the gear body one is located on the lower side surface of the gear body two, the connecting part is located on the upper side surface of the gear body two, the gear body two is located between the lower side surface of the sliding seat and the bottom surface of the slide, the connecting part is slidably inserted in the strip groove, the gear body one is meshed with the rack, and when the sliding seat moves toward the suction end, the damping gear can mesh with the gear body two, and when the sliding seat moves toward the locking end, the gear body two is separated from the damping gear. That is, the gear part can slide relative to the sliding seat. When the door body and the sliding seat are engaged at the locking end of the slideway, the coil spring provides an elastic thrust to make the sliding seat move toward the engagement end. At the beginning of the movement of the sliding seat toward the engagement end, the gear part temporarily stops under the action of the rack, and the sliding seat moves relative to the gear part until the damping gear meshes with the gear body 2, and then the damping gear pushes the gear part to move. During the movement of the gear part, the rack can drive the gear body 1 to rotate, and the gear body 1 drives the damping gear to rotate through the gear body 2. When the damping gear rotates, a certain amount of damping will be generated, so that the sliding seat can slowly move toward The suction end moves, thereby playing a buffering role. When the sliding seat is at the suction end and the door needs to be closed, a certain external force is applied to the door body, so that the door body moves to the locking end with the sliding seat. Since the gear part is located on the side of the damping gear that is opposite to the moving direction, the sliding seat will move a certain distance relative to the gear part, so that the damping gear is separated from the gear part, and then the gear part moves with the sliding seat. During this movement, since the gear part and the damping gear are in a separated state, the gear part only idles under the action of the rack and does not generate damping, thereby making the door closing operation lighter, faster, and more labor-saving.

[0025] In the above-mentioned hidden door suction structure, there are two rotary dampers, and the two rotary dampers are arranged in the width direction, and the damping gear is located above the sliding seat. There are two racks, and the two racks are respectively located at the two edges of the upper side of the mounting seat. The sliding seat is provided with two strip grooves arranged along the length direction of the slide, and the two strip grooves respectively correspond to the two damping gears, and the strip grooves are located on the side of the damping gear facing the suction end. There are two gear parts, and the gear parts each include a gear body and a columnar connecting part located on the lower side of the gear body. The two connecting parts are respectively slidably inserted in the two strip grooves, and the two gear bodies are respectively meshed with the two racks. When the sliding seat moves toward the suction end, the two damping gears are respectively meshed with the two gear bodies, and when the sliding seat moves toward the locking end, the two gear bodies are separated from the two damping gears. This structure can also mesh the damping gear with the gear body when the sliding seat moves toward the attraction end, thereby providing a buffer for the movement of the sliding seat. When the sliding seat moves toward the locking end, the gear body and the damping gear are separated, making the door closing operation lighter, faster, and more labor-saving. At the same time, the damping gear and gear body of this structure are both located above the sliding seat, and the rack is also located above the mounting seat, so that dust accumulation can be avoided to cause the meshing between the damping gear and the gear body, and the gear body and the rack to become stuck, thereby making the operation smoother and the structure more stable.

[0026] In the above-mentioned hidden door stopper structure, there are two rotary dampers, and the two rotary dampers are arranged in the width direction, there are two racks, a strip-shaped notch is opened on the bottom surface of the slideway along the length direction, the two racks are respectively located at the two side edges of the strip-shaped notch, and the damping gears of the two rotary dampers are respectively meshed with the two racks. The damping gear on the rotary damper is always meshed with the rack, so it can provide buffering when the sliding seat moves to the suction end, and the rotary damper, the damping gear and the rack are all arranged in a right way, so that the force of the sliding seat is more uniform and the sliding process is more stable.

[0027] In the above-mentioned hidden door stopper structure, the mounting seat is fixedly connected with two hydraulic dampers arranged along the length direction of the slideway, the sliding seat is located between the two hydraulic dampers, and the sliding seat is fixedly connected with the telescopic rods of the two hydraulic dampers, and the two hydraulic dampers are sleeved with a coil spring, one end of the coil spring presses against the mounting seat, and the other end presses against the sliding seat. The hydraulic damper is an existing damping component, which can provide resistance when the sliding seat moves with the door body to the suction end, so that the moving seat can still move slowly under the push of the coil spring, reducing the collision between the door body and the buffer assembly, improving stability, and reducing the failure rate.

[0028] Compared with the prior art, this hidden door stopper structure has the following advantages:

[0029] 1. When the positioning plate is separated from the locking block at the locking end, the positioning plate can cause the locking block to squeeze the card block, thereby squeezing the card block into the card slot of the slideway. That is, after the positioning plate on the door body is separated from the locking block, the locking block can keep the card block in the card slot, thereby continuously positioning the sliding seat to avoid the card block from being separated from the card slot due to external forces generated by impact, footsteps, etc., causing the sliding seat to shift, thereby allowing the buffer assembly to maintain sufficient stability before being connected with the positioning plate.

[0030] 2. Since the positioning plate is also provided with an auxiliary pull block, the positioning plate has not yet been engaged with the locking block, but due to human factors, the locking block rotates and loses the squeeze on the block. At this time, the sliding seat moves to the suction end, and after the positioning plate is close to the sliding seat, the auxiliary pull block can be engaged with the engaging part, which can not only realize the suction positioning of the door body, but also can pull the sliding seat to move through the auxiliary pull block when closing the door, and when the block is opposite to the slot, the locking block rotates, so that the operation of the buffer assembly returns to the correct track.

[0031] 3. Since the gear part can move relative to the sliding seat, when the sliding seat is at the suction end and the door needs to be closed, the damping gear is separated from the gear part, and then the gear part moves with the sliding seat. During this movement, since the gear part and the damping gear are in a separated state, the gear part only idles under the action of the rack and does not generate damping, making the door closing operation lighter, faster, and more labor-saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a three-dimensional structural diagram of a hidden door stopper structure.

[0033] Figure 2 It is a three-dimensional structural schematic diagram of the buffer component.

[0034] Figure 3 yes Figure 2 A magnified view of the structure at center.

[0035] Figure 4 It is a top view of the structure of the locking block.

[0036] Figure 5 It is a schematic diagram of the three-dimensional structure of the positioning plate.

[0037] Figure 6 It is a structural cross-sectional view of the connecting seat.

[0038] Figures 7 to 10 It is a state diagram of the process of the clamping column and the clamping part being clamped together.

[0039] Fig.11 It is a state diagram of the process of the clamping column and the clamping part being separated.

[0040] Figure 12 to Figure 14It is a state diagram of the process of the auxiliary pull block and the clamping part being clamped together.

[0041] Fig.15 It is a state diagram of the process of the auxiliary pull block and the clamping part being separated.

[0042] Fig.16 It is a structural cross-sectional view of the guide sleeve.

[0043] Fig.17 It is a structural diagram of the door stopper's gear parts meshing with the damping gear.

[0044] Fig.18 It is a structural diagram of the door stopper when the gear part and the damping gear are separated.

[0045] Fig.19 It is a structural cross-sectional view of the door stopper when the gear part and the damping gear are separated.

[0046] Fig. 20 It is a structural schematic diagram of the door stopper in the second embodiment.

[0047] Fig.21 It is a structural schematic diagram of the door stopper in the second embodiment from another perspective.

[0048] Fig. 22 It is a schematic diagram of the structure of the door stopper in the third embodiment.

[0049] Fig.23 It is a schematic diagram of the structure of the door stopper in the third embodiment from another perspective.

[0050] Fig.24 It is a structural sectional view of the door stopper in the third embodiment.

[0051] Fig.25 It is a schematic diagram of the structure of the door stopper in the fourth embodiment.

[0052] Fig.26 It is a schematic diagram of the structure of the door stopper in the fifth embodiment.

[0053] Fig. 27 It is a structural cross-sectional view of the sixth embodiment when the positioning plate and the locking block are in abutment with each other.

[0054] In the figure, 1, mounting seat; 11, slideway; 111, stop end; 112, suction end; 12, slot; 13, guide rod; 131, avoidance gap; 14, spiral spring; 15, rack; 16, strip gap; 2, sliding seat; 21, elastic foot; 22, block; 23, guide sleeve; 231, guide part; 24, strip groove; 3, locking block; 31, extrusion convex part; 311, positioning surface; 32, clamping part; 321, clamping concave surface; 322, guide convex surface; 322a, guide arc surface; 322 b. guide plane; 33. reset part; 34. guide convex part; 341. guide concave surface; 35. guide channel; 36. rotating column; 4. positioning plate; 41. clamping column; 42. pushing part; 43. auxiliary pull block; 431. pushing arc surface; 44. boss; 5. connecting seat; 51. groove; 52. spring rod; 6. rotary damper; 61. damping gear; 7. gear part; 71. gear body one; 72. gear body two; 73. connecting part; 731. connecting convex edge; 74. gear body; 8. hydraulic damper. DETAILED DESCRIPTION

[0055] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0056] Embodiment 1:

[0057] like Figure 1 As shown, a hidden door stopper structure includes a buffer component and a positioning component. The buffer component includes a mounting base 1 for fixed installation on the ground. The mounting base 1 is in a long strip shape. A slideway 11 is provided on the mounting base 1 along the length direction. One end of the slideway 11 is a stop end 111, and the other end is a suction end 112. The stop end 111 of the slideway 11 is provided with two card slots 12. The two card slots 12 are respectively located on the side walls of the slideway 11. Figure 2 , Figure 3As shown, a sliding seat 2 is slidably connected to the slideway 11, and the end of the sliding seat 2 facing the locking end 111 has two elastic feet 21, and the outer sides of the elastic feet 21 have blocking blocks 22. When the sliding seat 2 is located at the locking end 111, the two blocking blocks 22 are respectively opposite to the two locking grooves 12. A locking block 3 is also rotatably connected to the sliding seat 2, and the locking block 3 is located between the two elastic feet 21. The positioning assembly includes a connecting seat 5 and a positioning plate 4 connected to the connecting seat 5. The positioning plate 4 is installed on the side or bottom edge of the lower part of the door body. The positioning plate 4 can be engaged with or disengaged from the locking block 3 at the locking end 111 of the slide 11. When the positioning plate 4 is disengaged from the locking block 3 at the locking end 111, the positioning plate 4 can cause the locking block 3 to squeeze the elastic feet 21. Under the squeezing of the locking block 3, the two elastic feet 21 can deform outward so that the block 22 is pressed tightly in the slot 12. When the positioning plate 4 is engaged with the locking block 3 at the locking end 111, the positioning plate 4 can release the squeezing of the block 22.

[0058] Specifically, combined Figure 4 As shown, the locking block 3 is disc-shaped, and the lower side of the locking block 3 is rotatably connected to the upper side of the sliding seat 2 through a rotating column 36. The outer edge of the locking block 3 has two extrusion protrusions 31, one of which has a straight positioning surface 311. The positioning surface 311 smoothly transitions with the outer peripheral surface of the locking block 3. When the positioning plate 4 is disengaged from the locking block 3 and the locking block 3 is rotated, the two extrusion protrusions 31 respectively squeeze the inner side surfaces of the two elastic legs 21 toward the outside, and the positioning surface 311 fits and presses the inner side surfaces of the elastic legs 21. The locking block 3 has a protruding clamping portion 32 on its upper side, and the clamping portion 32 has a clamping concave surface 321. When the sliding seat 2 is in the sliding process or is located at the suction end 112 of the slideway 11, the clamping concave surface 321 faces the suction end 112 of the slideway 11, and the clamping portion 32 and the rotating column 36 are staggered in the length direction of the slideway 11, and in the width direction of the slideway 11, the rotating column 36 deviates from the center line of the length direction of the slideway, and the elastic foot 21 and the clamping block 22 are squeezed between the outer peripheral surface of the locking block 3 and the inner side surface of the slideway 11. At this time, the locking block 3 is difficult to rotate, and the locking block 3 is combined with the locking block 3. Figure 5 As shown, the lower side of the positioning plate 4 is provided with a clamping column 41, and the positioning plate 4 and the locking block 3 are clamped by the clamping column 41 and the clamping concave surface 321. The upper side of the locking block 3 is also provided with a protruding reset portion 33. When the sliding seat 2 is in the sliding process or is located at the suction end 112 of the slideway 11, the reset portion 33 is located on the side of the clamping portion 32 facing the suction end 112, and can limit the locking column. When the extrusion convex portion 31 squeezes the block 22 into the slot 12, the clamping portion 32 and the rotating column 36 are both located on one side of the center line of the slideway 11, and the reset portion 33 is located on the other side of the center line of the slideway 11. The lower side of the positioning plate 4 is also provided with a protruding push portion 42. The positioning plate 4 pushes the reset portion 33 through the push portion 42 to drive the locking block 3 to rotate and release the extrusion of the elastic foot 21.

[0059] Figures 7 to 10 The process of the clamping column 41 and the clamping portion 32 is as follows: Figure 7 As shown, the sliding seat 2 is located at the locking end 111 of the slideway 11, and the clamping block 22 is clamped in the clamping groove 12 under the pressure of the extrusion protrusion 31 on the locking block 3, while the positioning plate 4 is not yet clamped with the locking block 3. Figure 8 As shown, the positioning plate 4 is close to the locking block 3, and the pushing portion 42 on the positioning plate 4 is in contact with the reset portion 33 on the locking block 3, as shown in FIG. Fig. 9 As shown in FIG. 1 , as the positioning plate 4 continues to move toward the suction end 112, the pushing portion 42 gradually pushes the reset portion 33, and the locking block 3 rotates, so that the extrusion protrusion 31 gradually separates from the inner side of the elastic foot 21, and the clamping block 22 gradually separates from the clamping groove 12 under the elastic action of the elastic foot 21 itself. Fig.10 As shown, the locking block 3 is rotated into place, and the clamping block 22 is completely out of the clamping slot 12. During the rotation of the locking block 3, the clamping portion 32 is gradually transferred to the clamping concave surface 321 and is opposite to the clamping column 41, thereby realizing the clamping of the positioning plate 4 and the locking block 3. Fig.11 This reflects the state in which the positioning plate 4 is disengaged from the locking block 3, that is, the positioning plate 4 moves away from the suction end 112. At this time, since the clamping portion 32 is deviated from the rotating column 36, the clamping column 41 can push the clamping portion 32, causing the locking block 3 to rotate in the opposite direction, thereby squeezing the clamping block 22 into the clamping groove 12 through the squeezing protrusion 31.

[0060] The positioning plate 4 has not yet been engaged with the locking block 3, but due to human factors, the locking block 3 rotates and loses the squeeze on the block 22. At this time, the sliding seat 2 moves to the suction end 112, and the clamping concave surface 321 of the clamping portion 32 faces the suction end 112. At this time, the clamping column 41 is blocked by the clamping portion 32 and is difficult to move to the opposite side of the clamping concave surface 321, that is, the positioning plate 4 is difficult to be engaged with the locking block 3 through the clamping column 41. For this reason, the lower side of the positioning plate 4 is also provided with an auxiliary pull block 43. When the sliding seat 2 is located at the suction end 112 of the slideway 11, the positioning plate 4 can be clamped with the locking block 3 by abutting against the clamping concave surface 321 through the auxiliary pull block 43. Specifically, Figure 6As shown, one end of the positioning plate 4 is rotatably connected to the connecting seat 5, and a groove 51 is provided on the lower side of the connecting seat 5, and a boss 44 is provided on the upper side of the positioning plate 4, and the boss 44 is embedded in the groove 51. A spring rod 52 is also provided in the groove 51, and the two ends of the spring rod 52 are respectively located between the two side groove walls of the groove 51 and the two side sides of the boss 44, and the two ends of the spring rod 52 are arched inward and respectively abut against the two side sides of the boss 44. When the positioning plate 4 is opposite to the mounting seat 1, the auxiliary pull block 43 is located on the side of the clamping column 41 facing the suction end 112, and the clamping portion 32 also has a guiding convex surface facing the stop end 111 when the locking block 3 is located at the suction end 112. 322, the guiding convex surface 322 includes a guiding arc surface 322a and a guiding plane 322b located at one end of the guiding arc surface 322a, one end of the guiding plane 322b is inclined toward the suction end 112, and the locking block 3 is also provided with a guiding protrusion 34 on the upper side surface, and the guiding protrusion 34 is provided with a guiding concave surface 341, and a guiding channel 35 is formed between the guiding concave surface 341 and the guiding plane 322b. Under the guidance of the guiding arc surface 322a, the positioning plate 4 is deflected, and the auxiliary pull block 43 enters the guiding channel 35, and then slides from the side of the clamping portion 32, and finally the spring rod 52 can make the positioning plate 4 reset and rotate and make the auxiliary pull block 43 face the clamping concave surface 321.

[0061] Figure 12 to Figure 14 The auxiliary pull block 43 is engaged with the engaging portion 32, as shown in FIG. Fig.12 As shown, the sliding seat 2 is located at the suction end 112 of the slideway 11, and the positioning plate 4 is not engaged with the locking block 3. At this time, the positioning plate 4 is close to the locking block 3, and the auxiliary pull block 43 is against the guide arc surface 322a. Fig.13 As shown, under the action of the guide arc surface 322a, the positioning plate 4 is deflected, and the auxiliary pull block 43 enters the guide channel 35, as shown in FIG. Fig.14 As shown, after the auxiliary pull block 43 passes through the guide channel 35, the spring rod 52 causes the positioning plate 4 to return and rotate, so that the auxiliary pull block 43 is opposite to the engaging concave surface 321, thereby achieving the engaging of the positioning plate 4 with the locking block 3. Fig.15 This reflects that the auxiliary pull block 43 is disengaged from the engaging portion 32 at the locking end 111 . Since the engaging portion 32 is staggered with the rotating column 36 , the positioning plate 4 can drive the locking block 3 to rotate when it moves away from the suction end 112 , thereby releasing the squeezing of the engaging block 22 .

[0062] like Fig.16As shown, the mounting seat 1 has two guide rods 13 arranged along the length direction of the slideway 11, the sliding seat 2 is located between the two guide rods 13, the guide rod 13 is tubular, and the guide rod 13 is provided with an avoidance notch 131 along the length direction toward the side of the sliding seat 2, and the sliding seat 2 has guide sleeves 23 at both edges, and the inner wall of the guide sleeve 23 has a columnar guide portion 231 along the axial direction, the two guide sleeves 23 are respectively slidably sleeved on the two guide rods 13, and the guide portion 231 passes through the avoidance notch 131 and slidably cooperates with the inner wall of the guide rod 13, and the two guide rods 13 are both sleeved with a coil spring 14, one end of the coil spring 14 presses on the guide sleeve 23, and the other end presses on the end of the guide rod 13 facing the stop end 111. A buffer mechanism is also provided between the mounting seat 1 and the sliding seat 2, which can generate damping for the sliding seat 2 when the sliding seat 2 moves toward the suction end 112. The buffer structure includes a rotary damper 6 fixedly mounted on the sliding seat 2, with the output end of the rotary damper 6 facing downward. Fig.17 , Fig.18 As shown, a damping gear 61 is fixed at the output end of the rotary damper 6, a rack 15 is provided on the mounting seat 1, and the rack 15 is arranged along the length direction of the slideway 11. A gear member 7 is rotatably provided on the sliding seat 2, and the gear member 7 is located on the side of the damping gear 61 facing the suction end 112, and the gear member 7 can move relative to the sliding seat 2, and the gear member 7 can move relative to the sliding seat 2. Fig.19 As shown, the gear member 7 includes a gear body 1 71, a gear body 2 72 and a columnar connecting portion 73. The gear body 1 71, the gear body 2 72 and the connecting portion 73 are an integrated structure and are coaxially arranged. The gear body 1 71 is located on the lower side surface of the gear body 2 72, and the connecting portion 73 is located on the upper side surface of the gear body 2 72. The tooth top circle diameter of the gear body 2 72 is larger than the tooth top circle diameter of the gear body 1 71 and the tooth top circle diameter of the damping gear 61. The gear body 2 72 is located between the lower side surface of the sliding seat 2 and the bottom surface of the slideway 11, and the two side surfaces of the gear body 2 72 are slidably matched with the lower side surface of the sliding seat 2 and the bottom surface of the slideway 11 respectively. When the sliding seat 2 moves toward the suction end 112, the gear body 2 72 can mesh with the damping gear 61. A strip notch 16 is provided on the bottom surface of the slideway 11 along the length direction, and the rack 15 is located at the edge of the strip notch 16 on the lower side of the mounting seat 1, and the gear body 1 71 extends into the strip notch 16 and meshes with the rack 15. A strip groove 24 is provided on the sliding seat 2 along the length direction of the slideway 11, and the strip groove 24 is located on the side of the damping gear 61 facing the suction end 112, and the width of the strip groove 24 is adapted to the outer diameter of the connecting portion 73, and the connecting portion 73 rotates upward to pass through the strip groove 24 and extends into the inner side of the annular convex edge, and the connecting portion 73 can move along the length direction of the strip groove 24.

[0063] Embodiment 2:

[0064] The hidden door stopper structure is basically the same as that of the first embodiment. The difference is that Fig. 20 , Fig.21 As shown, the gear body 1 71 is located on the upper side of the gear body 2 72, the connecting portion 73 is located on the upper side of the gear body 1 71, a strip notch 16 is opened on the bottom surface of the slideway 11 along the length direction, the rack 15 is located at the edge of the strip notch 16 on the lower side of the mounting seat 1, the gear body 1 71 passes through the strip notch 16 and meshes with the rack 15, the upper end of the connecting portion 73 extends upwardly from the strip groove 24, and the edge of the extended end portion has a ring-shaped connecting protrusion 731 in the circumferential direction, the outer diameter of the connecting protrusion 731 is greater than the width of the strip groove 24, and the sliding seat 2 is located between the lower side of the connecting protrusion and the upper side of the gear body 1 71.

[0065] Embodiment three:

[0066] The hidden door stopper structure is basically the same as that of the first embodiment. The difference is that Fig. 22 , Fig.23 , Fig.24 As shown, there are two rotary dampers 6, which are arranged in the width direction, and the damping gear 61 is located above the sliding seat 2, there are two racks 15, and the two racks 15 are respectively located at the two edges of the upper side of the mounting seat 1, and the sliding seat 2 is provided with two strip grooves 24 arranged along the length direction of the slideway, and the two strip grooves 24 correspond to the two damping gears 61 respectively, and the strip grooves 24 are located on the side of the damping gear 61 facing the suction end 112, and there are two gear members 7, and the gear members 7 each include a gear body 74 and a columnar connection, 73, connecting The part 73 is perpendicular to the lower side of the gear body 74, and the two connecting parts 73 are respectively slidably inserted in the two strip grooves 24. The ends of the connecting parts 73 extend downward from the strip grooves 24, and the edges of the extended ends are circumferentially provided with an annular connecting protrusion 731. The outer diameter of the connecting protrusion 731 is greater than the width of the strip groove 24. The two gear bodies 74 are respectively meshed with the two racks 15. When the sliding seat 2 moves toward the suction end 112, the two damping gears 61 are respectively meshed with the two gear bodies 74. When the sliding seat 2 moves toward the locking end 111, the two gear bodies 74 are separated from the two damping gears 61.

[0067] Embodiment 4:

[0068] The hidden door stopper structure is basically the same as that of the first embodiment. The difference is that Fig.25 As shown, there are two rotary dampers 6, and the two rotary dampers 6 are arranged along the sliding width direction, there are two racks 15, and a strip-shaped notch 16 is opened on the bottom surface of the slideway 11 along the length direction. The two racks 15 are respectively located at the two side edges of the strip-shaped notch 16, and the damping gears 61 of the two rotary dampers 6 are respectively engaged with the two racks 15.

[0069] Embodiment five:

[0070] The hidden door stopper structure is basically the same as that of the first embodiment. The difference is that Fig.26As shown, two hydraulic dampers 8 arranged along the length direction of the slide 11 are fixedly connected to the mounting seat 1, the sliding seat 2 is located between the two hydraulic dampers 8, and the sliding seat 2 is fixedly connected to the telescopic rods of the two hydraulic dampers 8, and the two hydraulic dampers 8 are both sleeved with a coil spring 14, one end of the coil spring 14 presses against the mounting seat 1, and the other end presses against the sliding seat 2.

[0071] Embodiment six:

[0072] The hidden door stopper structure is basically the same as that of the first embodiment. The difference is that Fig. 27 As shown, the positioning plate 4 is an elastic sheet that can bend and deform under the action of external force. The auxiliary pull block 43 is in the shape of a long strip, and one end face of the auxiliary pull block 43 is a pushing arc surface 431. When the positioning plate 4 is opposite to the mounting seat 1, the pushing arc surface 431 faces the clamping portion 32. Therefore, when the positioning plate 4 is stuck and difficult to rotate, the pushing arc surface 431 of the auxiliary pull block 43 can directly act on the clamping portion 32. Under the action of the pushing arc surface 431, the end of the positioning plate 4 can be bent upward in an arc shape until the auxiliary pull block 43 passes over the clamping portion 32, and then reset under its own elastic force, so that the auxiliary pull block 43 is clamped on the clamping concave surface 321 of the clamping portion 32.

[0073] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0074] Although the terms such as mounting seat 1, slideway 11, and stop end 111 are used more frequently in this article, the possibility of using other terms is not excluded. These terms are used only to more conveniently describe and explain the essence of the present invention; interpreting them as any additional restrictions is contrary to the spirit of the present invention.

Claims

1. A hidden door stopper structure, comprising a buffer component and a positioning component, wherein the buffer component comprises a mounting seat (1) having a slideway (11) and a sliding seat (2) slidably arranged on the slideway (11), one end of the slideway (11) is a stop end (111) having a slot (12), and the sliding seat (2) has a block (22), characterized in that: The sliding seat (2) is also rotatably connected to a locking block (3), and the positioning assembly comprises a positioning plate (4) which can be engaged with or disengaged from the locking block (3) at a locking end (111) of the slideway (11); when the positioning plate (4) is disengaged from the locking block (3) at the locking end (111), the positioning plate (4) can cause the locking block (3) to squeeze the clamping block (22), and under the squeezing of the locking block (3), the clamping block (22) is pressed into the clamping groove (12); the sliding seat (2) is provided with a strip-shaped elastic foot (21), and the clamping block (22) is located on the side of the elastic foot (21). When the sliding seat (2) is located at the locking end (111) of the slideway (11), the locking block (22) is engaged with the locking block (22) and the locking block (22) is engaged with the locking block (22). ), the card block (22) is opposite to the card slot (12), and when the positioning plate (4) and the locking block (3) are separated, the locking block (3) can be driven to rotate and squeeze the elastic foot (21), so that the card block (22) is pressed tightly in the card slot (12); the elastic foot (21) and the card slot (12) are both provided with two, and the two card slots (12) are respectively located on the side walls of the slideway (11), the card block (22) is located on the outer side surface of the elastic foot (21), and the locking block (3) is located between the two elastic feet (21), and under the squeezing of the locking block (3), the two elastic feet (21) can be deformed outwards so that the card block (22) is pressed tightly in the card slot (12); the locking The block (3) is disc-shaped, and the lower side of the locking block (3) is rotatably connected to the upper side of the sliding seat (2); the outer edge of the locking block (3) has two extrusion protrusions (31); when the positioning plate (4) and the locking block (3) are separated and the locking block (3) is rotated, the two extrusion protrusions (31) respectively squeeze the inner side surfaces of the two elastic legs (21) outward; at least one of the extrusion protrusions (31) has a straight positioning surface (311); when the card block (22) is pressed into the card slot (12), the positioning surface (311) and the inner side surface of the elastic leg (21) are pressed together, and the positioning surface (311) and the outer peripheral surface of the locking block (3) are smoothly transitioned; the locking plate (4) and the locking block (3) are respectively pressed into the inner side surface of the elastic leg (21) outward; the locking plate (4) and the locking block (3) are respectively pressed into the inner side surface of the elastic leg (21) outward; the locking plate (4) and the locking block (3) are respectively pressed together, and the locking plate (4) and the locking block (3) are respectively pressed together. The mounting seat (1) is provided with two guide rods (13) arranged along the length direction of the slideway (11), the sliding seat (2) is located between the two guide rods (13), and the two edges of the sliding seat (2) are provided with guide sleeves (23), the two guide sleeves (23) are respectively slidably sleeved on the two guide rods (13), the guide rod (13) is tubular, and the side of the guide rod (13) facing the sliding seat (2) is provided with an avoidance notch (131) along the length direction, and the inner wall of the guide sleeve (23) is provided with a columnar guide portion (231) along the axial direction, and the guide portion (231) passes through the avoidance notch (131) and is slidably matched with the inner wall of the guide rod (13).

2. The hidden door stopper structure according to claim 1, characterized in that: The locking block (3) has a protruding engaging portion (32) on its upper side surface, and the engaging portion (32) has an engaging concave surface (321). The other end of the slideway (11) is an engaging end (112). When the sliding seat (2) is in the sliding process or is located at the engaging end (112) of the slideway (11), the engaging concave surface (321) faces the engaging end (112) of the slideway (11). The positioning plate (4) has an engaging column (41) on its lower side surface, and the positioning plate (4) and the locking block (3) are engaged with each other by the engaging column (41) and the engaging concave surface (321) being in contact with each other.

3. The hidden door stopper structure according to claim 2 is characterized in that: The lower side of the locking block (3) is rotatably connected to the sliding seat (2) via a rotating column (36); when the sliding seat (2) is in the sliding process or is located at the suction end (112) of the slideway (11), the clamping portion (32) and the rotating column (36) are staggered in the length direction of the slideway (11), and the elastic foot (21) and the clamping block (22) are squeezed between the outer peripheral surface of the locking block (3) and the inner side surface of the slideway (11).

4. The hidden door stopper structure according to claim 3 is characterized in that: The locking block (3) also has a protruding reset portion (33) on the upper side surface. When the extrusion protrusion (31) squeezes the clamping block (22) into the clamping groove (12), the clamping portion (32) and the rotating column (36) are both located on one side of the center line of the slideway (11), and the reset portion (33) is located on the other side of the center line of the slideway (11). The positioning plate (4) also has a protruding pushing portion (42) on the lower side surface. The positioning plate (4) pushes the reset portion (33) through the pushing portion (42) to drive the locking block (3) to rotate and release the squeezing of the elastic foot (21).

5. The hidden door stopper structure according to claim 4 is characterized in that: When the sliding seat (2) is in the sliding process or is located at the suction end (112) of the slideway (11), the reset portion (33) is located on the side of the clamping portion (32) facing the suction end (112).

6. The hidden door stopper structure according to claim 2, characterized in that: The lower side of the positioning plate (4) is also provided with an auxiliary pull block (43). When the sliding seat (2) is located at the suction end (112) of the slideway (11), the positioning plate (4) can be clamped with the locking block (3) by the auxiliary pull block (43) abutting against the clamping concave surface (321).

7. The hidden door stopper structure according to claim 6, characterized in that: The positioning assembly also includes a connecting seat (5), one end of the positioning plate (4) is rotatably connected to the connecting seat (5), when the positioning plate (4) is opposite to the mounting seat (1), the auxiliary pull block (43) is located on the side of the clamping column (41) facing the suction end (112), and the clamping portion (32) is also provided with a guiding convex surface (322) facing the locking end (111) when the locking block (3) is located at the suction end (112), and under the guiding action of the guiding convex surface (322) on the auxiliary pull block (43), the positioning plate (4) can be rotated so that the auxiliary pull block (43) slides from the side of the clamping portion (32), and the connecting seat (5) is also provided with a spring rod (52) that can make the positioning plate (4) reset and rotate and make the auxiliary pull block (43) face the clamping concave surface (321).

8. The hidden door stopper structure according to claim 7, characterized in that: The guide convex surface (322) comprises a guide arc surface (322a) and a guide plane (322b) located at one end of the guide arc surface (322a), one end of the guide plane (322b) is inclined toward the suction end (112), the locking block (3) also has a guide convex portion (34) on the upper side surface, the guide convex portion (34) has a guide concave surface (341), a guide channel (35) is formed between the guide concave surface (341) and the guide plane (322b), and the spring rod (52) makes the auxiliary pull block (43) face the clamping concave surface (321) after the auxiliary pull block (43) passes through the guide channel (35).

9. The hidden door stopper structure according to claim 8, characterized in that: The lower side of the connecting seat (5) is provided with a groove (51), the upper side of the positioning plate (4) is provided with a boss (44), the boss (44) is embedded in the groove (51), the spring rod (52) is arranged in the groove (51), the two ends of the spring rod (52) are respectively located between the two side groove walls of the groove (51) and the two side side surfaces of the boss (44), and the two ends of the spring rod (52) are both arched inwards and respectively abut against the two side side surfaces of the boss (44).

10. The hidden door stopper structure according to claim 9, characterized in that: The positioning plate (4) is an elastic sheet, the auxiliary pull block (43) is in the shape of an elongated strip, and one end surface of the auxiliary pull block (43) is a push arc surface (431). When the positioning plate (4) is opposite to the mounting seat (1), the push arc surface (431) faces the clamping portion (32).

11. The hidden door stopper structure according to claim 1, characterized in that: The other end of the slideway (11) is an engaging end (112), and a buffer mechanism is provided between the mounting seat (1) and the sliding seat (2) and is capable of generating damping on the sliding seat (2) when the sliding seat (2) moves toward the engaging end (112). The buffer mechanism comprises a rotary damper (6) fixed on the sliding seat (2) and a rack (15) fixed on the mounting seat (1) along the length direction. A damping gear (61) is provided at the output end of the rotary damper (6), and the damping gear (61) is meshed with the rack (15) or the damping gear (61) is meshed with the rack (15) via a gear member (7).

12. The hidden door stopper structure according to claim 11, characterized in that: The sliding seat (2) is provided with a strip groove (24) along the length direction of the slideway (11), and the strip groove (24) is located on the side of the damping gear (61) facing the suction end (112). The gear member (7) comprises a gear body 1 (71), a gear body 2 (72) and a columnar connecting portion (73), wherein the gear body 1 (71) is located on the lower side of the gear body 2 (72), and the connecting portion (73) is located on the upper side of the gear body 2 (72). The second wheel body (72) is located between the lower side surface of the sliding seat (2) and the bottom surface of the slideway (11); the connecting portion (73) is slidably inserted into the strip groove (24); the first gear body (71) is meshed with the rack (15); when the sliding seat (2) moves toward the suction end (112), the damping gear (61) can be meshed with the second gear body (72); when the sliding seat (2) moves toward the locking end (111), the second gear body (72) is separated from the damping gear (61).

13. The hidden door stopper structure according to claim 11, characterized in that: There are two rotary dampers (6), which are arranged in the width direction, and the damping gear (61) is located above the sliding seat (2). There are two racks (15), which are respectively located at the two edges of the upper side of the mounting seat (1). The sliding seat (2) is provided with two strip grooves (24) arranged along the length direction of the slideway (11), and the two strip grooves (24) respectively correspond to the two damping gears (61), and the strip grooves (24) are located on the side of the damping gear (61) facing the suction end (112). There are two wheel members (7), and each gear member (7) comprises a gear body (74) and a columnar connecting portion (73) located on the lower side of the gear body (74). The two connecting portions (73) are respectively slidably inserted in the two-shaped grooves (24), and the two gear bodies (74) are respectively meshed with the two racks (15). When the sliding seat (2) moves toward the suction end (112), the two damping gears (61) are respectively meshed with the two gear bodies (74), and when the sliding seat (2) moves toward the locking end (111), the two gear bodies (74) are separated from the two damping gears (61).

14. The hidden door stopper structure according to claim 11, characterized in that: There are two rotary dampers (6), and the two rotary dampers (6) are arranged in the width direction. There are two racks (15). A strip-shaped notch (16) is provided on the bottom surface of the slideway (11) in the length direction. The two racks (15) are respectively located at the edges of both sides of the strip-shaped notch (16). The damping gears (61) of the two rotary dampers (6) are respectively meshed with the two racks (15).

15. The hidden door stopper structure according to claim 1, characterized in that: The mounting seat (1) is fixedly connected with two hydraulic dampers (8) arranged along the length direction of the slideway (11); the sliding seat (2) is located between the two hydraulic dampers (8), and the sliding seat (2) is fixedly connected with the telescopic rods of the two hydraulic dampers (8); the two hydraulic dampers (8) are both sleeved with a coil spring (14); one end of the coil spring (14) is pressed against the mounting seat (1), and the other end is pressed against the sliding seat (2).

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