Hidden door stopper

Abstract

The present invention relates to the technical field of door hardware and discloses a concealed door stopper comprising a top seat assembly and a base assembly. During use, the top seat assembly is mounted on the lower inner end of a door leaf, while the base assembly is mounted on the ground. The top seat assembly and the base assembly are engaged to secure the door leaf. Because the top seat assembly is located within the door leaf, and the door stopper is locked, the base assembly is positioned below the door leaf, providing a better concealment effect.

Description

Technical Field

[0001] The present invention relates to the technical field of door hardware, and in particular to a hidden door stopper. Background Art

[0002] Existing door catches are typically surface-mounted magnetic door catches. Installed on the inside of the door leaf, these are not only unsightly but also demanding to install. Once installed, the height of the suction rod securing the door cannot be adjusted, and the magnetic suction force cannot be altered. If the suction force is weak, even a slight breeze can overcome it and close the door, rendering the door catch ineffective as a windproof solution. Stronger suction can be more cumbersome and inconvenient, impacting the user experience. Summary of the Invention

[0003] The present invention is made to solve the above-mentioned technical problems, and its purpose is to provide a hidden door stopper, part of the structure of which can be installed inside the door leaf. After locking the door leaf, the other part of the structure can be located under the door leaf, thereby achieving a better hiding effect.

[0004] To achieve the above-mentioned object, the present invention provides a concealed door stopper, comprising a top seat assembly and a base assembly, wherein the top seat assembly comprises: a top shell, a bottom surface of which is provided with a first movable hole, and a front and rear side surfaces of which are provided with a second movable hole; a first slide groove, horizontally slidably arranged in the top shell, with an inclined third movable hole provided on the front and rear side surfaces, and a fourth movable hole provided on the bottom surface; a first adjusting screw, passed through the side surface of the top shell, with one end being threadedly connected to the side surface of the first slide groove; a second slide groove, vertically slidably arranged in the first slide groove, with a first mounting hole provided on the front and rear side surfaces, and a fifth movable hole provided on the bottom surface; a guide pin, passed through the second, third and first mounting holes, and moving synchronously with the second slide groove; a locking rod, passed through the first, fourth and fifth movable holes, with an upper end being clamped in the bottom of the second slide groove, and being horizontally slidable in the fifth movable hole and moving synchronously with the second slide groove; a spring, passed through the top shell, applying a horizontal force to the locking rod; and the base assembly comprises: a base body, a side surface of which is provided with an inwardly recessed locking portion for accommodating the lower end of the locking rod.

[0005] Preferably, the second movable hole is a vertical long hole, and the third movable hole is an oblique long hole.

[0006] Preferably, the first active hole, the fourth active hole and the fifth active hole are all horizontal long holes.

[0007] Preferably, the upper end of the locking rod is provided with a locking structure that is locked on the outer periphery of the fifth movable hole.

[0008] Preferably, the locking structure includes a gasket sleeved on the upper end of the locking rod and having an outer diameter greater than the width of the fifth movable hole, and a fixing screw passing through the upper end of the locking rod.

[0009] Preferably, the locking rod is further sleeved with a roller, and the roller rolls in the first movable hole and the fourth movable hole.

[0010] Preferably, a buffer pad is sleeved on the lower end portion of the locking rod, and when the locking rod is clamped in the locking portion, the side surface of the buffer pad abuts against the side surface of the locking portion.

[0011] Preferably, a guide block is further provided on the outer periphery of the locking rod and is horizontally slidably connected to the top shell; one end of the spring abuts against the guide block.

[0012] Preferably, one end of the spring away from the locking rod is connected to a second adjusting screw threadedly connected to the side wall of the top shell.

[0013] Preferably, two locking portions are provided on the side surface of the base body.

[0014] According to the above description and practice, the hidden door stopper described in the present invention includes a top seat assembly and a base assembly. When in use, the top seat assembly is installed at the inner lower end of the door leaf, and the base assembly is installed on the ground. The door leaf is fixed by the snap-fitting of the two. Since the top seat assembly is arranged inside the door leaf, and the base assembly is located below the door leaf after the door stopper is locked, it has a better hiding effect. In addition, the hidden door stopper can also adjust the height of the locking rod through the first adjusting screw, that is, adjust the length of the lower end of the locking rod extending outward. When the distance between the door leaf and the ground is large or small, the height of the locking rod can be adjusted to adapt the installation of the hidden door stopper. It can be seen that the hidden door stopper also has a high adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of a hidden door stopper involved in one embodiment of the present invention.

[0016] Figure 2 It is a schematic diagram of the three-dimensional cross-sectional structure of a hidden door stopper involved in one embodiment of the present invention.

[0017] Figure 3 This is a schematic diagram of the use of a hidden door stopper involved in one embodiment of the present invention.

[0018] Figure 4 The figure is a schematic diagram of the cross-sectional structure of the hidden door stopper when the door is closed in one embodiment of the present invention.

[0019] Figure 5This is a schematic diagram of the cross-sectional structure of the hidden door stopper after locking in one embodiment of the present invention.

[0020] Figure 6 This is a schematic diagram of the cross-sectional structure of a hidden door suction device involved in one embodiment of the present invention after the locking rod therein is adjusted to a position.

[0021] Figure 7 This is a schematic diagram of the cross-sectional structure of the hidden door suction after the locking force is adjusted in one embodiment of the present invention.

[0022] The reference numerals in the figures are:

[0023] 1. Base assembly; 11. Base body; 12. Locking part; 2. Top seat assembly; 21. Top shell; 22. First slide groove; 23. Second slide groove; 24. Locking rod; 25. Guide pin; 26. Spring; 27. Guide block; 28. Roller; 29. ​​Buffer pad; 31. First movable hole; 32. Second movable hole; 33. Third movable hole; 34. Fourth movable hole; 35. Fifth movable hole; 41. First adjusting screw; 42. Second adjusting screw; 43. Mounting screw; 44. Fixing screw; 45. Gasket; 51. First cover plate; 52. Second cover plate; 53. Pressure plate; 6. Door leaf; 7. Ground. DETAILED DESCRIPTION

[0024] The exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments can be embodied in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete and will fully convey the concepts of the exemplary embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0025] In addition, the accompanying drawings are only schematic illustrations of the present disclosure and are not necessarily drawn to scale. The same reference numerals in the figures represent the same or similar parts, and their repeated description will be omitted. It should be noted that in the present disclosure, the terms "including", "configured with", and "set on" are used to express open-ended inclusion and mean that in addition to the listed elements / components / etc., there may be additional elements / components / etc.; the terms "first", "second", etc. are used only as labels and are not intended to limit the number or order of their objects; the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operate in a specific direction, and therefore should not be understood as limiting the present invention.

[0026] Unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be interpreted broadly. For example, they can refer to fixed, removable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in the present invention based on the specific circumstances.

[0027] In this embodiment, a hidden door stopper is disclosed. Figure 1 The three-dimensional structure of the hidden door stopper is shown; Figure 2 The three-dimensional cross-sectional structure of the hidden door stopper is shown; Figure 3 The figure shows the state of the hidden door stopper when in use, and the figure shows the locked state; Figure 4 The cross-sectional structure of the hidden door stopper is shown when the door is closed, at which point the locking rod initially contacts the locking portion; Figure 5 The figure shows the cross-sectional structure of the hidden door stopper after locking, at which point the locking rod has been locked into the locking portion; Figure 6 The cross-sectional structure of the hidden door stopper after the locking rod inside it is adjusted to its position is shown. Figure 5 Compared with the structure in the figure, the locking lever is positioned higher. Figure 7 The cross-sectional structure of the hidden door stopper after the locking force is adjusted is shown. Figure 5 Compared with the structure in the upper part, the spring is subjected to greater compression and the corresponding locking force is also greater.

[0028] Please refer to Figures 1 to 7 The hidden door stopper in this embodiment includes a top seat assembly 2 and a base assembly 1. When in use, the top seat assembly 2 is installed at the lower end of the inner portion of the door leaf 6, and the base assembly 1 is installed on the ground 7. The top seat assembly 2 is engaged with the base assembly 1 to fix the door leaf 6. Since the top seat assembly 2 is located inside the door leaf 6 and the base assembly 1 is located below the door leaf 6 after the door stopper is locked, it has a better concealment effect.

[0029] Specifically, the top seat assembly 2 comprises a top shell 21, a first slide slot 22, a second slide slot 23, a locking rod 24, a guide pin 25, a first adjustment screw 41, and a spring 26. The top shell 21 is an open-top housing. Its bottom surface is provided with a first movable hole 31, through which the lower end of the locking rod 24 extends. Second movable holes 32 are provided on its front and rear sides for limiting and guiding the guide pin 25. Mounting screws 43 are provided on the left and right ends of the top shell 21, allowing it to be mounted on the door leaf 6. Furthermore, a first cover plate 51 is provided at the top of the top shell 21, which can be snapped or bolted onto the top shell 21 to seal the structure within. In other embodiments, the top shell 21 can be formed by snapping together two half shells, ensuring that the interior has a cavity that can accommodate other structures. The first movable hole 31 is a horizontal, elongated hole within which the locking rod 24 can move horizontally within a certain range. The second movable hole 32 is a vertical, elongated hole.

[0030] The first chute 22 is a slot structure that slides horizontally within the top shell 21. Its front and rear sides are provided with an inclined third movable hole 33 that faces the second movable hole 32, and its bottom surface is provided with a fourth movable hole 34 that faces the first movable hole 31. A first adjustment screw 41 is inserted through the side of the top shell 21, with its right end threadedly connected to the left sidewall of the first chute 22. Rotating the first adjustment screw 41 allows the first chute 22 to move horizontally left or right within the top shell 21.

[0031] The second slide groove 23 is also a groove structure, which is slidably arranged in the first slide groove 22. A first mounting hole facing the second movable hole 32 is provided on its front and rear sides, and a fifth movable hole 35 facing the first movable hole 31 is provided on its bottom surface.

[0032] The guide pin 25 is inserted into the second movable hole 32, the third movable hole 33 and the first mounting hole. The first mounting hole is a round hole, so the guide pin 25 can move synchronously with the second slide groove 23. Specifically, since the second movable hole 32 is vertically arranged and the third movable hole 33 is tilted, when the first adjusting screw 41 is rotated to make the first slide groove 22 slide to the right, the third movable hole 33 applies an oblique downward force to the guide pin 25, so the guide pin 25 will move downward in the second movable hole 32, and then the second slide groove 23 will also move downward; conversely, when the first adjusting screw 41 is rotated to make the first slide groove 22 slide to the left, the third movable hole 33 applies an oblique upward force to the guide pin 25, so the guide pin 25 will move upward in the second movable hole 32, and then the second slide groove 23 will also move upward. That is, the second slide groove 23 can be controlled to move up and down through the first adjusting screw 41. See for details. Figure 5 and Figure 6 , by rotating the first adjusting screw 41, Figure 6The first slide groove 22 is positioned further to the left, and accordingly, the second slide groove 23 is positioned further to the top, and the locking lever 24 is also positioned further upward. In this embodiment, two sets of guide pins 25, second movable holes 32, third movable holes 33, and first mounting holes are provided, which ensures more stable assembly and linkage between the second slide groove 23 and the first slide groove 22.

[0033] The locking lever 24 is inserted into the first, fourth, and fifth movable holes 31, 34, and 35, with its upper end engaged with the bottom of the second chute 23. The locking lever 24 is capable of sliding horizontally within the fifth movable hole 35 and moving synchronously with the second chute 23. A spring 26 is disposed within the top housing 21 and applies a horizontal force to the locking lever 24, with this force directed toward the side closest to the base body 11, i.e., toward the right side in the figure.

[0034] The base assembly 1 includes a base body 11, the side of which is provided with an arc-shaped inwardly recessed locking portion 12 for accommodating the lower end of the locking rod 24. Figure 3 When the locking rod 24 moves with the door leaf 6 and gradually approaches the base body 11, the lower end of the locking rod 24 first contacts the front end of the base body 11. As the door leaf 6 continues to open, the base body 11 pushes the locking rod 24 to slide to the left and overcomes the resistance of the spring 26 until it enters the locking part 12. The spring 26 then pushes the locking rod 24 to the right and presses it tightly against the inner wall of the locking part 12, thereby locking and fixing the door leaf 6.

[0035] While offering excellent concealment, this concealed door stopper also features adjustable height of the locking rod 24, i.e., the outward extension length of the lower end of the locking rod 24, via the first adjustment screw 41. This allows for adaptability to varying distances between the door leaf 6 and the ground 7 by adjusting the height of the locking rod 24. This demonstrates the high adaptability of this concealed door stopper.

[0036] It should be noted that in this embodiment, the second movable hole 32 is a vertically elongated hole, and the third movable hole 33 is an obliquely elongated hole. Their purpose is to convert the horizontal movement of the first slide groove 22 into the vertical movement of the second slide groove 23, thereby adjusting the height of the locking rod 24. Therefore, by fine-tuning the orientation of the two movable holes, or slightly changing their shapes, such as changing them to arc-shaped holes with a larger curvature, the above-mentioned change in movement can also be achieved.

[0037] In this embodiment, the first movable hole 31, the fourth movable hole 34, and the fifth movable hole 35 are all horizontal elongated holes, which can ensure that the locking rod 24 can move horizontally without shaking back and forth. In other embodiments, if these movable holes are replaced with oval holes, circular holes, or arc holes, horizontal movement of the locking rod 24 can also be achieved to a certain extent.

[0038] In this embodiment, a locking structure is provided at the upper end of the locking lever 24, which engages the upper periphery of the fifth movable hole 35. This prevents the locking lever 24 from falling downward from the fifth movable hole 35 while also preventing the locking lever 24 from moving horizontally within the fifth movable hole 35. Specifically, the locking structure comprises a washer 45 and a fixing screw 44. See the accompanying drawings for details. The washer 45 is positioned over the top of the locking lever 24 and has an outer diameter greater than the width of the fifth movable hole 35. The fixing screw 44 is inserted into the upper end of the locking lever 24, with its end face abutting the end face of the washer 45, thereby locking the locking lever 24 in place during driving. In other embodiments, a screw with a wider head may be directly connected to the upper end of the locking lever 24, or the upper end of the locking lever 24 may be configured to extend outward. These structures can also function as the aforementioned locking structure, and therefore, these two structures may also be referred to as the aforementioned locking structures.

[0039] In this embodiment, the base body 11 is a cylindrical structure with an arcuate side surface. An arcuate guide surface is provided between the end of the locking portion 12 and the side surface of the base body 11. Therefore, the locking rod 24 can enter and exit the locking portion 12 more smoothly and fluidly.

[0040] Furthermore, in this embodiment, the locking lever 24 is also fitted with a roller 28, which rolls within the first and fourth movable holes 31 and 34, ensuring smoother horizontal movement of the locking lever 24. As shown in the accompanying drawings, the lower end of the locking lever 24 has a larger diameter than the main body, which acts as a stop for the roller 28 and prevents it from falling downward. The upper end of the roller 28 abuts the lower end of the second chute 23, and the diameter of the roller 28 is larger than the width of the fifth movable hole 35. Therefore, the locking lever 24 can only move vertically in sync with the second chute 23.

[0041] Furthermore, in this embodiment, a cushion pad 29 is sleeved on the lower end of the locking lever 24. The cushion pad 29 is made of a flexible material. When the locking lever 24 collides with the base body 11, the cushion pad 29 first contacts the side of the base body 11, providing a cushioning and noise reduction effect. When the locking lever 24 is engaged within the locking portion 12, the side of the cushion pad 29 abuts against the side of the locking portion 12. The flexible cushion pad 29 also increases friction with the locking portion 12, thereby improving the locking force to a certain extent.

[0042] Furthermore, a guide block 27 is provided on the outer periphery of the locking rod 24, which slides horizontally within the top shell 21. The right end of the spring 26 abuts against this guide block 27. The guide block 27 is mounted on the locking rod 24 and can move horizontally with the locking rod 24. The locking rod 24 can also move up and down within the guide block 27. The provision of this guide block 27 improves the horizontal stability of the locking rod 24 and prevents horizontal shaking of the locking rod 24. A pressure plate 53 is also fixed horizontally within the top shell 21, dividing the space within the top shell 21 into two parts: the lower space accommodates the guide block 27, within which it slides horizontally, and the upper space accommodates the first slide 22, the second slide 23, the guide pin 25, and other components. The provision of the pressure plate 53 further improves the stability of the guide block 27, and thus the stability of the locking rod 24. Furthermore, it provides support for the first slide 22, making its sliding more stable.

[0043] In addition, a second adjusting screw 42 is threadedly connected to the left wall of the top shell 21. The right end of the second adjusting screw 42 abuts against the left end of the spring 26. By rotating the second adjusting screw 42, the compression degree of the spring 26 can be adjusted, thereby adjusting the force applied by the spring 26 to the locking rod 24, that is, adjusting the locking force. Figure 5 and Figure 7 , by rotating the second adjusting screw 42, Figure 7 The second adjusting screw 42 is closer to the right side, and accordingly, the compression degree of the spring 26 is greater, and the force applied to the locking rod 24 is also greater, and the locking force of the door suction is also greater.

[0044] In addition, in this embodiment, two locking parts 12 are provided on the side of the base body 11, respectively on the left and right sides. On the one hand, the position of the base body 11 can be adjusted according to the actual installation environment, and a better locking part 12 can be selected to cooperate with the locking rod 24; on the other hand, it can also adapt to door leaves 6 with different structural forms of left opening or right opening.

[0045] A second mounting hole is provided in the middle of the base body 11, which can be fixed to the ground 7 by mounting screws 43. A second cover plate 52 is also provided on the upper part of the base body 11 to cover the second mounting hole on the base body 11, making the appearance of the base assembly 1 more concise.

[0046] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A hidden door stopper, comprising a top assembly and a base assembly, characterized in that: The top seat assembly includes: The top shell has a first movable hole on the bottom surface and second movable holes on the front and rear sides; a first slide slot, horizontally slidably disposed in the top shell, with inclined third movable holes provided on the front and rear sides and a fourth movable hole provided on the bottom surface; a first adjusting screw, which is passed through the side surface of the top shell and has one end threadedly connected to the side surface of the first sliding groove; A second slide groove is vertically slidably arranged in the first slide groove, with first mounting holes provided on the front and rear sides and a fifth movable hole provided on the bottom surface; A guide pin is inserted into the second movable hole, the third movable hole and the first mounting hole, and moves synchronously with the second sliding groove; A locking rod is inserted into the first movable hole, the fourth movable hole, and the fifth movable hole, with its upper end clamped in the bottom of the second chute, and can slide horizontally in the fifth movable hole and move synchronously with the second chute; a spring, disposed in the top shell, for applying a horizontal force to the locking rod; The second movable hole is a vertical strip hole, the third movable hole is an oblique strip hole; the first movable hole, the fourth movable hole and the fifth movable hole are all horizontal strip holes; The base assembly includes: The base body has a side surface provided with an inwardly recessed locking portion for accommodating the lower end of the locking rod.

2. The hidden door stopper according to claim 1, characterized in that: The upper end of the locking rod is provided with a locking structure that is locked on the outer periphery of the fifth movable hole.

3. The hidden door stopper according to claim 2, characterized in that: The locking structure includes a washer sleeved on the upper end of the locking rod and having an outer diameter greater than the width of the fifth movable hole, and a fixing screw passing through the upper end of the locking rod.

4. The hidden door stopper according to claim 1, characterized in that: The locking rod is also sleeved with a roller, and the roller is rotatably arranged in the first movable hole and the fourth movable hole.

5. The hidden door stopper according to claim 1, characterized in that: A buffer pad is sleeved on the lower end portion of the locking rod. When the locking rod is clamped in the locking portion, the side surface of the buffer pad abuts against the side surface of the locking portion.

6. The hidden door stopper according to claim 1, characterized in that: The outer periphery of the locking rod is also provided with a guide block horizontally slidably connected to the top shell; One end of the spring abuts against the guide block.

7. The hidden door stopper according to claim 1, characterized in that: One end of the spring away from the locking rod is connected to a second adjusting screw threadedly connected to the side wall of the top shell.

8. The hidden door stopper according to claim 1, characterized in that: Two locking parts are provided on the side surface of the base body.

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