An adjustable pivot door support base

Abstract

The utility model relates to the technical field of pivot door base, especially adjustable pivot door support base is provided with door pivot positioning hole on the base, the outer portion of base is covered with bottom casing, base is connected in the inside of bottom casing slidingly, and the telescopic assembly that is tightly arranged in the two inner side walls of bottom casing is arranged on the both sides of base. When using the utility model, the sealing property and service life of the door body can be ensured, and the risk of door pivot failure is reduced.

Description

Technical Field

[0001] This utility model relates to the technical field of hinged door bases, and in particular to an adjustable hinged door support base. Background Technology

[0002] Hinged doors, as a type of door structure with flexible opening and closing characteristics, are widely used in various scenarios such as commercial buildings, residential buildings, and public facilities due to their advantages of small footprint and high passage efficiency. They encompass various specific applications including office partitions, home entrance doors, and elevator lobby doors. The stable operation of this type of door relies on a reasonable hinge support structure. Its typical construction usually consists of two key support components: an upper hinge structure fixed to the top of the wall and a support base structure fixed to the bottom of the wall. Together, these components provide bidirectional positioning support for the door.

[0003] In the assembly system of hinged doors, the door body itself integrates a single hinge component. During assembly, the upper end of the hinge is precisely inserted into the positioning hole or mating groove of the upper hinge structure, while the lower end of the hinge is embedded into the corresponding assembly structure of the lower support base. This allows the door to rotate and open / close around the hinge. This coordinated support method theoretically ensures the stability of the door's operation. However, in actual installation and use, design flaws in the existing support base structure have gradually become apparent, becoming a key issue affecting the installation quality and user experience of the door.

[0004] Specifically, most hinged door support bases on the market currently employ a fixed design, lacking an effective adjustment mechanism at the connection point with the door hinge. In actual construction scenarios, due to a combination of factors such as errors in building wall construction, deviations in ground flatness, and limitations in installation precision, the positioning center of the support base after fixing often cannot guarantee absolute coaxiality with the positioning center of the upper hinge structure. Because the support base lacks adjustment capabilities, this deviation cannot be compensated for through subsequent fine-tuning, making it highly likely that the hinge will not be perpendicular after the door is installed.

[0005] A non-perpendicular hinge not only directly disrupts the door's stress balance, causing malfunctions such as jamming and abnormal noises during opening and closing, but also reduces the sealing performance between the door and the frame / floor, leading to air leaks and poor sound insulation. Over time, the uneven stress will accelerate wear on the hinge and support structure, shortening the door's lifespan and increasing maintenance costs. In applications requiring high installation precision, such as fire doors and insulated doors, this structural defect may prevent the door from meeting relevant performance standards, posing safety hazards or the risk of functional failure.

[0006] Therefore, given the lack of adjustability in existing hinged door support base structures, there is an urgent need for a support structure that can be precisely adjusted after installation to solve the problem of non-vertical hinges and improve the installation quality and reliability of hinged doors. Utility Model Content

[0007] The purpose of this utility model is to provide an adjustable hinge door support base in order to address the defects and shortcomings of the existing technology.

[0008] To achieve the above objectives, the technical solution adopted by this utility model is as follows: The present invention discloses an adjustable pivot door support base, comprising a base; a door pivot positioning hole provided on the base; a bottom shell sleeved on the outside of the base; the base being slidably connected to the inside of the bottom shell; and telescopic components abutting against the inner sidewalls of the bottom shell on both sides of the base.

[0009] Furthermore, the top surface of the base has opening slots on both sides; threaded holes are provided on both sides of the opening slots; the telescopic component is an internal hexagon bolt that matches the threaded hole; the internal hexagon bolt is threadedly connected to the threaded hole.

[0010] Furthermore, the cross-section of the opening groove is trapezoidal; the threaded hole is perpendicular to the side surface of the opening groove. The angle between the axis of the threaded hole and the bottom surface of the base is an inclination angle; the inclination angle is 30-40°.

[0011] Furthermore, the tilt angle is 35°.

[0012] Furthermore, both ends of the base are provided with internal threaded holes; bolts are threaded into the internal threaded holes; the heads of the bolts are pressed against the inner sidewall of the base housing; the heads of the bolts are provided with multiple handle insertion holes; the handle insertion holes are circumferentially distributed on the bolts.

[0013] Furthermore, the head of the bolt is configured in a hemispherical shape.

[0014] Furthermore, a bottom shell flange is provided around the outer side wall of the bottom shell; a cover plate assembly is provided on the bottom shell; the edge of the cover plate assembly is provided with a downwardly protruding cover plate flange; the cover plate assembly consists of two cover plates; the cover plates are snapped and fixed on the bottom shell flange; the cover plates are provided with positioning grooves and positioning blocks that match the positioning grooves; the positioning block of one cover plate is inserted into the positioning groove of the other cover plate.

[0015] Furthermore, the inner wall of the cover flange is provided with an inwardly protruding convex shape.

[0016] With the above structure, the beneficial effects of this utility model are as follows: the door hinge positioning hole matches the door pivot; after the bottom end of the door pivot is inserted into the door hinge positioning hole, the position of the base on the bottom shell can be adjusted by adjusting the extension of the telescopic components on both sides, so that the door hinge positioning hole of the base is aligned with the positioning hole of the upper pivot; this ensures the sealing performance and service life of the door body and reduces the risk of door pivot failure. Attached Figure Description

[0017] Figure 1 This is an exploded view of this utility model; Figure 2 This is a cross-sectional view of the connection between the base and the telescopic assembly; Figure 3 This is a structural diagram of the cover plate assembly; Figure 4 This is a first-person perspective 3D view of the connection between the base and the telescopic assembly; Figure 5 This is a second-view 3D diagram showing the connection between the base and the telescopic assembly; Explanation of reference numerals in the attached figures: 1. Cover plate; 101. Cover plate flange; 102. Positioning groove; 103. Positioning block; 104. Convex shape; 2. Base; 201. Door hinge positioning hole; 202. Threaded hole; 203. Opening groove; 204. Internal threaded hole; 3. Bolts; 301. Handle insertion hole; 4. Bottom shell; 401. Bottom shell flange; 5. Telescopic assembly. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings.

[0019] like Figures 1 to 5 As shown, the adjustable pivot door support base of this utility model includes a base 2; the base 2 is provided with a door pivot positioning hole 201; a bottom shell 4 is fitted over the base 2; the base 2 is slidably connected to the inside of the bottom shell 4; and telescopic components 5 are provided on both sides of the base 2, which abut against the two inner side walls of the bottom shell 4. A slot is made at the bottom of the wall to match the bottom shell 4, and the bottom shell 4 is pre-embedded and fixed in the slot; there are four telescopic components 5, two on each side; The door hinge positioning hole 201 matches the door hinge; after the bottom end of the door hinge is inserted into the door hinge positioning hole 201, the position of the base 2 on the bottom housing 4 can be adjusted by adjusting the extension of the telescopic components 5 on both sides, so that the door hinge positioning hole 201 of the base 2 is aligned with the positioning hole of the upper hinge; this ensures the sealing performance and service life of the door body and reduces the risk of door hinge failure.

[0020] In a preferred embodiment of this utility model, the top surface of the base 2 is provided with opening slots 203 on both sides; the opening slots 203 are provided with threaded holes 202 on both sides; the telescopic component 5 is an internal hex bolt that matches the threaded holes 202. The socket head cap screws are threadedly connected to the threaded holes 202; by inserting a hex wrench into the opening slot 203 and rotating each socket head cap screw, the extension length of the socket head cap screws is controlled to adjust the position of the base 2 on the bottom housing 4. Finally, the socket head cap screws are tightened against the inner side wall of the bottom housing 4 to fix the base 2 on the bottom housing 4.

[0021] In a preferred embodiment of this utility model, the cross-section of the opening groove 203 is trapezoidal; the threaded hole 202 is perpendicular to the side surface of the opening groove 203. The angle between the axis of the threaded hole 202 and the bottom surface of the base 2 is an inclination angle; the inclination angle α is 30-40°. The opening slot 203 has a trapezoidal cross-section that is wider at the top and narrower at the bottom, which makes the internal hex bolt tilted towards the upward side, allowing the operator to directly observe the handle hole of the internal hex bolt, making operation convenient.

[0022] In a preferred embodiment of this invention, the tilt angle is 35°.

[0023] In a preferred embodiment of this utility model, both ends of the base 2 are provided with internal threaded holes 204; bolts 3 are threaded into the internal threaded holes 204; the heads of the bolts 3 are pressed against the inner sidewall of the base shell 4; a plurality of handle insertion holes 301 are provided on the heads of the bolts 3; the handle insertion holes 301 are circumferentially distributed on the bolts 3. The telescopic component 5 is used to adjust the lateral position of the base 2 on the bottom housing 4, while the bolt 3 is used to adjust the longitudinal position of the base 2 on the bottom housing 4. After the rod that can be inserted into the handle socket 301 is inserted into the handle socket 301, the bolt 3 is rotated to extend and retract within the internal threaded hole 204. The different extension combinations of the two bolts 3 are adjusted simultaneously to achieve fine adjustment of the longitudinal position of the base 2 on the bottom housing 4. Finally, the head of the bolt 3 is pressed against the bottom housing 4 for positioning.

[0024] As a preferred embodiment of this utility model, the head of the bolt 3 is provided in a hemispherical shape; the hemispherical shape of the bolt 3 reduces the friction between the head and the inner wall of the bottom shell 4, making it easier to rotate when adjusting the bolt 3.

[0025] In a preferred embodiment of this utility model, a bottom shell flange 401 is provided around the outer side wall of the bottom shell 4; a cover plate assembly is provided on the bottom shell 4; the edge of the cover plate assembly is provided with a downwardly protruding cover plate flange 101; the cover plate assembly is composed of two cover plates 1; the cover plate 1 is snapped and fixed on the bottom shell flange 401; the cover plate 1 is provided with a positioning groove 102 and a positioning block 103 that matches the positioning groove 102; the positioning block 103 of one cover plate 1 is inserted into the positioning groove 102 of the other cover plate 1; The cover plate assembly is provided with holes for the door pivot to pass through. The cover plate 1 is fixed to the top surface of the bottom housing 4 by a snap-fit ​​connection, which is used to seal the bottom housing 4 and protect the internal parts of the bottom housing 4.

[0026] In a preferred embodiment of this utility model, the inner sidewall of the cover flange 101 is provided with an inwardly protruding convex shape 104; the convex shape 104 is used to clamp the bottom of the bottom shell flange 401, thereby fixing the cover plate 1 to the bottom shell 4. The cover plate 1 is a thin plate, which can produce elastic deformation after being pressed, so that the convex shape 104 and the bottom shell flange 401 are misaligned, and the cover plate 1 is removed from the bottom shell 4.

[0027] The above description is only a preferred embodiment of the present utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the claims of the present utility model patent application are included in the scope of the present utility model patent application.

Claims

1. An adjustable hinged door support base, comprising a base (2); the base (2) is provided with a door hinge positioning hole (201); characterized in that: The base (2) is covered with a bottom shell (4); the base (2) is slidably connected to the inside of the bottom shell (4); both sides of the base (2) are provided with telescopic components (5) that abut against the two inner side walls of the bottom shell (4).

2. The adjustable hinge door support base according to claim 1, characterized in that: The base (2) has opening slots (203) on both sides of its top surface; threaded holes (202) are provided on both sides of the opening slots (203); the telescopic component (5) is an internal hex bolt that matches the threaded hole (202); the internal hex bolt is threadedly connected to the threaded hole (202).

3. An adjustable hinged door support base according to claim 2, characterized in that: The cross-section of the opening groove (203) is trapezoidal; the threaded hole (202) and the side surface of the opening groove (203) are perpendicular to each other; The angle between the axis of the threaded hole (202) and the bottom surface of the base (2) is an inclination angle; the inclination angle is 30-40°.

4. An adjustable hinged door support base according to claim 3, characterized in that: The tilt angle is 35°.

5. An adjustable hinged door support base according to claim 1, characterized in that: Both ends of the base (2) are provided with internal threaded holes (204); bolts (3) are threaded into the internal threaded holes (204); the head of the bolt (3) is pressed against the inner side wall of the bottom shell (4); multiple handle insertion holes (301) are provided on the head of the bolt (3); the handle insertion holes (301) are circumferentially distributed on the bolt (3).

6. An adjustable hinged door support base according to claim 5, characterized in that: The head of the bolt (3) is hemispherical.

7. An adjustable hinged door support base according to claim 1, characterized in that: The outer side wall of the bottom shell (4) is provided with a bottom shell flange (401) around it; a cover plate assembly is provided on the bottom shell (4); the edge of the cover plate assembly is provided with a downward protruding cover plate flange (101); the cover plate assembly is composed of two cover plates (1); the cover plate (1) is snapped and fixed on the bottom shell flange (401); the cover plate (1) is provided with a positioning groove (102) and a positioning block (103) that matches the positioning groove (102); the positioning block (103) of one cover plate (1) is inserted into the positioning groove (102) of the other cover plate (1).

8. An adjustable hinged door support base according to claim 7, characterized in that: The inner wall of the cover flange (101) is provided with an inwardly protruding convex shape (104).

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