Adjustable upper door shaft suitable for extra-heavy door
By designing an adjustable upper door axis suitable for extra-heavy doors, the problems of hinges being unable to close on their own, prone to rust and insufficient load-bearing capacity are solved, and a stable connection and concealed installation are achieved with an automatic closing function.
Patent Information
- Application Number
- CN202422981885.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-04
- Publication Date
- 2025-10-17
- Estimated Expiration
- 2034-12-04
AI Technical Summary
Existing hinges cannot achieve the door leaf closing by itself, are prone to rust, have insufficient load-bearing capacity, and are not concealed enough after installation, making them difficult to apply to super-heavy doors.
An adjustable upper door shaft suitable for super-heavy doors is designed. It is made of Q345 steel and includes a frame top fixing block, a fan top fixing block and an adjustable upper shaft. It is connected by a shaft sleeve and a radial threaded through hole. An adjustment countersunk hole and a limit step are provided at the bottom, and automatic closing is achieved in conjunction with a heavy-duty spring ground shaft.
It achieves a stable connection for extra-heavy doors, has high tensile strength, is well concealed after installation, has an automatic closing function, and avoids rust problems.
Smart Images
Figure CN223446836U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to door shaft field, concretely relates to a kind of adjustable upper door shaft suitable for super heavy door. BACKGROUND
[0002] The existing hinge, its structure mainly includes hinge inner sheet, hinge outer sheet, middle ring, axle core, cap head and screw. Among them: hinge inner sheet and hinge outer sheet are usually made of metal, with four screw holes, for fixing and connecting;Middle ring is used to connect hinge inner sheet and outer sheet, plays the role of support and connection;Axle core is the rotation center of hinge, allows hinge to rotate around it;Cap head is used to fix and protect axle core, also enhances the structural stability of hinge;Screw is used to fix hinge on door frame and door panel, ensures the firm connection of hinge.
[0003] This kind of hinge has the following shortcomings in use process:
[0004] 1. Ordinary hinge cannot make door leaf close by hinge elastic force self like spring hinge, which can need additional device to realize the automatic closing function of door.
[0005] 2. Ordinary hinge is easy to rust, especially in humid environment, which can affect the service life of hinge and normal use of door.
[0006] 3. Although the size of hinge is larger, its carrying capacity is relatively smaller, not suitable for heavy door and window or occasion needing to bear large pressure.
[0007] 4. Ordinary appearance is not enough concealed after installation. INVENTION CONTENT
[0008] In order to make up for the deficiencies in the prior art, the utility model provides a kind of adjustable upper door shaft suitable for super heavy door, compact structure, high tensile strength, good concealment after installation, can cooperate with heavy spring ground shaft use.
[0009] In order to achieve the above purpose, the utility model adopts the technical scheme as follows:
[0010] A kind of adjustable upper door shaft suitable for super heavy door, including frame top fixed block, fan top fixed block and adjustable upper shaft, first shaft hole is equipped on the frame top fixed block, second shaft hole is equipped on the fan top fixed block, the shaft sleeve connected with the second shaft hole is equipped on the fan top fixed block bottom, the adjustable upper shaft is arranged in the shaft sleeve, the second shaft hole, the first shaft hole, the adjustable upper shaft bottom outer periphery is equipped with multiple adjusting counterbores.
[0011] Further, radial threaded through hole is equipped on the shaft sleeve, and the radial threaded through hole is connected with anti-drop screw.
[0012] Furthermore, a limiting step surface is provided at the bottom of the adjustable upper shaft.
[0013] Furthermore, the plurality of adjusting sink holes are arranged in a wave shape.
[0014] Compared with the prior art, the present invention has the following beneficial technical effects:
[0015] The utility model has a compact structure and high tensile strength, and can prevent super-high doors and super-heavy doors from falling down due to problems with the upper door shaft structure; after installation, it is well concealed and the hardware structure basically will not be exposed; it can be installed in conjunction with a heavy-duty floor spring floor shaft to realize the automatic closing function after the door is opened. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 The utility model is a structural diagram of an adjustable upper door shaft suitable for super-heavy doors.
[0017] Figure 2 The utility model is an exploded view of an adjustable upper door shaft suitable for super-heavy doors.
[0018] Among them: 1. Frame top fixing block; 11. First axis hole; 2. Fan top fixing block; 21. Second axis hole; 3. Adjustable upper shaft; 31. Adjustment countersunk hole; 32. Limiting step surface; 4. Bushing; 41. Radial threaded through hole; 5. Anti-slip screw. DETAILED DESCRIPTION
[0019] The following description sets forth many specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art can make similar generalizations without violating the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.
[0020] Example 1
[0021] like Figure 1 、 2 As shown, an adjustable upper door shaft for extra-heavy doors is made of Q345 steel and comprises a frame top fixing block 1, a sash top fixing block 2, and an adjustable upper shaft 3. The frame top fixing block 1 is provided with a first shaft hole 11, and the sash top fixing block 2 is provided with a second shaft hole 21. A sleeve 4 is provided at the bottom of the sash top fixing block 2, which connects to the second shaft hole 21. The adjustable upper shaft 3 connects the frame top fixing block 1 and the sash top fixing block 2 by passing through the sleeve 4, the second shaft hole 21, and the first shaft hole 11.
[0022] The sleeve 4 is provided with a radial threaded through hole 41, and the radial threaded through hole 41 is connected with an anti-loosening screw 5, so that the position of the adjustable upper shaft 3 can be fixed, and the adjustable upper shaft 3 will not fall off during use. The bottom of the adjustable upper shaft 3 is provided with a plurality of adjusting counterbores 31 arranged in a wave shape, so that the adjustable upper shaft 3 can be adjusted by the adjusting counterbores 31 or the length of the shaft head of the adjustable upper shaft 3. The bottom of the adjustable upper shaft 3 is provided with a limiting step surface 32.
[0023] The adjustable upper door shaft suitable for the overweight door has the following installation adjustment: the frame top fixing block 1 is fixed to the door frame, the leaf top fixing block 2 is fixed to the top of the door leaf, and the frame top fixing block 1 and the leaf top fixing block 2 are connected together by the adjustable upper shaft 3. During use, the frame top fixing block 1 is fixed, the leaf top fixing block 2 rotates with the door body, and the adjustable upper shaft 3 will not fall off by being fixed by the anti-loosening screw 5.
[0024] The above is only the preferred embodiment of the utility model, and is not used for limiting the utility model, although the utility model is described in detail with reference to the embodiment, for the person skilled in the art, still can modify the technical scheme recorded in each foregoing embodiment, or equivalent replacement is carried out to part technical features, but any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be contained in the protection scope of the utility model.
Claims
1. An adjustable upper door shaft suitable for super-heavy doors, characterized by: It includes a frame top fixing block, a fan top fixing block and an adjustable upper shaft. The frame top fixing block is provided with a first shaft hole, the fan top fixing block is provided with a second shaft hole, and the bottom of the fan top fixing block is provided with a shaft sleeve connected to the second shaft hole. The adjustable upper shaft is passed through the shaft sleeve, the second shaft hole and the first shaft hole. The outer periphery of the bottom of the adjustable upper shaft is provided with multiple adjustment countersunk holes.
2. The adjustable upper door shaft for super-heavy doors according to claim 1, characterized in that: The shaft sleeve is provided with a radial threaded through hole, and the radial threaded through hole is connected with an anti-slip screw.
3. The adjustable upper door shaft for super-heavy doors according to claim 2, characterized in that: A limiting step surface is provided at the bottom of the adjustable upper shaft.
4. The adjustable upper door shaft for super-heavy doors according to claim 3, characterized in that: The plurality of adjusting sink holes are arranged in a wave shape.