Reinforced hinge with auxiliary positioning blade

Abstract

The utility model discloses a reinforcing hinge with auxiliary positioning blades, which relates to the technical field of hinge production, and comprises a first blade and a second blade, a connecting cylinder is arranged on the first blade, positioning cylinders are arranged at two ends of the second blade, a connecting shaft is inserted into the connecting cylinder, and the connecting shaft is connected with the positioning cylinders. The connecting cylinder is rotatably connected with the positioning cylinder through a connecting shaft, the auxiliary positioning blades are arranged on the first blade and the second blade, auxiliary positioning holes are formed in the auxiliary positioning blades, and a vertical included angle is formed between each auxiliary positioning blade and a setting surface. According to the reinforcing hinge with the auxiliary positioning blades, the edge of a door frame or a door plate can be rapidly positioned during assembly, the time for repeated adjustment is shortened, installation is convenient, the connecting strength between the first blade and the door frame or the door plate and between the second blade and the door frame or the door plate can be enhanced, and the overall service life of the hinge is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of hinge production, in particular to a reinforced hinge with auxiliary positioning blades. Background Art

[0002] Hinges are used to physically connect two parts, such as a door and doorframe, a window sash and window frame, or a lid and box body. A hinge is a type of hinge that contains one or more axes (rotating shafts) around which the two connected objects can smoothly rotate relative to each other, achieving an opening and closing motion.

[0003] According to the utility model patent application with publication number CN218029686U and publication date 2022-12-13, a hinge is disclosed, comprising a hinge fixing plate, a rubber sleeve, and a connecting shaft. The hinge fixing plate is provided with a mounting groove, the rubber sleeve is fixedly disposed in the mounting groove, and the connecting shaft is rotatably inserted into the rubber sleeve. Its main technical effect is that by disposing the connecting shaft in the mounting groove and by sleeve-fitting the rubber sleeve onto the connecting shaft, the manufacturing process of the hinge is simplified. The rubber sleeve rotates relative to the connecting shaft, and there is no direct contact between the connecting shaft and the hinge fixing plate, thereby preventing the connecting shaft and the hinge fixing plate from loosening and reducing wear, thereby extending the service life of the hinge.

[0004] The hinge structure used for door opening and closing in the prior art is usually a hinge, and the hinge usually consists of two pieces. During installation, one end of the hinge needs to be installed on the door frame, and the other end needs to be installed on the edge of the door. The single-sided structure of the hinge is a sheet structure. When installed on the door frame or door, it needs to be repeatedly positioned to install the hinge on the edge of the door frame or door to ensure that the door can be opened and closed smoothly after assembly. In addition, the connecting shaft of the hinge in the prior art is in direct contact with the hinges on both sides. The direct contact is a metal part, which is prone to wear and noise. Although the problem can be solved by adding lubricating oil, it is necessary to add lubricating oil frequently. During subsequent use, the lubricating oil will overflow to the outside of the hinge, and the lubricating oil will adhere to dust. For this reason, a reinforced hinge with auxiliary positioning blades is proposed, which aims to solve the problem that the hinge in the prior art needs to be repeatedly positioned during installation, which is time-consuming, and the circumference of the connecting shaft of the hinge in the prior art is in direct contact with the circumferential inner wall of the hinge sheet, which is prone to wear and noise. Utility Model Content

[0005] The purpose of the utility model is to provide a reinforced hinge with auxiliary positioning blades, aiming to solve the problem in the prior art that the hinge needs to be repeatedly positioned during installation, which is time-consuming, and the problem that the circumference of the hinge's connecting shaft is in direct contact with the circumferential inner wall of the hinge piece in the prior art, which is prone to wear and noise.

[0006] In order to achieve the above purpose, the present invention provides the following technical solutions:

[0007] A reinforced hinge with auxiliary positioning blades, comprising a first blade and a second blade, wherein the first blade is provided with a connecting cylinder, and positioning cylinders are provided at both ends of the second blade, the connecting cylinder is plugged with a connecting shaft, and the connecting cylinder and the positioning cylinder are rotatably connected via the connecting shaft, and further comprising auxiliary positioning blades, wherein the first blade and the second blade are both provided with auxiliary positioning blades, the auxiliary positioning blades are provided with auxiliary positioning holes, and the auxiliary positioning blades are arranged at an angle to the setting surface;

[0008] It also includes an oil-free bearing, which is sleeved on the connecting shaft and is arranged at the connection between the first blade and the second blade;

[0009] The oil-free bearing includes a boss end and a platform end. The diameter of the platform end is larger than that of the boss end. The outer wall of the boss end is a wedge-shaped structure. The connecting shaft passes through the oil-free bearing, and the boss end is inserted into the connecting tube. The angle of the wedge structure on the boss end is 1°-3°.

[0010] Preferably, the oil-free bearing also includes a rotating ring, which is sleeved on the connecting shaft. An inclined groove is provided at the bottom of the platform end, and an inclined surface is provided at the top of the rotating ring. The inclined groove is adapted to the inclined surface, and the rotating ring maintains a rotational connection with the inclined surface through the inclined groove.

[0011] Preferably, a positioning protrusion is provided on the circumferential outer wall of the boss end, and the boss end is a wedge-shaped structure as a whole.

[0012] Preferably, a plug-in circular groove is provided inside the bottom of the platform end, and a plug-in boss is installed on the rotating ring, and the plug-in boss is plugged into the plug-in circular groove.

[0013] Preferably, a clamping protrusion is provided on the plug-in boss, a clamping circular groove is provided on the inner wall of the plug-in circular groove, and the plug-in boss is clamped in the clamping circular groove through the clamping protrusion.

[0014] Preferably, a plug is further included, the plug is plugged into the positioning cylinder, the end of the connecting shaft is plugged into the inside of the plug, and the outer wall of one end of the plug is a wedge-shaped structure.

[0015] Preferably, the boss end is provided with a notch, which is provided at the end of the boss end and is located above the plug-in boss.

[0016] Preferably, the angle is a vertical angle.

[0017] Preferably, the cross-sectional shape of the inclined chute is V-shaped, and the cross-sectional shape of the inclined surface is V-shaped.

[0018] In the above technical solution, the utility model provides a reinforced hinge with auxiliary positioning blades, which has the following beneficial effects:

[0019] The utility model can directly abut the side edge of the door frame or door panel during installation by using the auxiliary positioning blades vertically arranged on the first blade and the second blade. Since the auxiliary positioning blades are vertically arranged on the first blade or the second blade, they can directly fit with the side edge of the door frame or door panel, and can be quickly positioned to the edge of the door frame or door panel during assembly, reducing the time for repeated adjustments and facilitating installation. Auxiliary positioning holes are provided on the auxiliary positioning blades, which can be connected to the other side of the door frame or door panel by screws, so that there are two connecting surfaces between the first blade or the second blade and the door frame or door panel, which can enhance the connection strength between the first blade, the second blade and the door frame or door panel, and improve the overall service life of the hinge.

[0020] By adding an oil-free bearing at the connection between the first blade and the second blade, the lubrication of the connection between the first blade and the second blade is increased, so as to improve the lubrication after long-term use. At the same time, the boss end of the oil-free bearing is inserted into the connecting cylinder on the first blade, so that the connecting shaft is isolated from the connecting cylinder of the first blade, thereby preventing the connecting shaft from directly contacting the connecting cylinder during use, and preventing wear and noise and abnormal sound after long-term use. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0022] Figure 1 A schematic diagram of the overall structure of a first embodiment of an oil-free bearing provided by an embodiment of the present utility model;

[0023] Figure 2 A schematic diagram of the assembly structure of the first embodiment of the oil-free bearing provided by the present utility model;

[0024] Figure 3 A schematic diagram of the overall structure of a second embodiment of an oil-free bearing provided by an embodiment of the present utility model;

[0025] Figure 4 A schematic diagram of the assembly structure of a second embodiment of an oil-free bearing provided by an embodiment of the present utility model;

[0026] Figure 5 A schematic diagram of the connection relationship of the second embodiment of the oil-free bearing provided by the embodiment of the utility model;

[0027] Figure 6A schematic diagram of the detailed structure of a second embodiment of an oil-free bearing provided by an embodiment of the present utility model;

[0028] Figure 7 A schematic diagram of a cross-sectional structure of a hinge provided in an embodiment of the present utility model;

[0029] Figure 8 This is a schematic three-dimensional cross-sectional view of the second embodiment of the shaftless bearing provided by the utility model.

[0030] Description of reference numerals:

[0031] 1. First blade; 11. Connecting tube; 12. Plug-in groove; 2. Second blade; 21. Positioning tube; 3. Connecting shaft; 4. Auxiliary positioning blade; 41. Auxiliary positioning hole; 5. Oil-free bearing; 511. Boss end; 512. Platform end; 513. Notch; 522. Rotating ring; 523. Positioning protrusion; 524. Plug-in boss; 525. Inclined slide groove; 526. Inclined surface; 527. Plug-in circular groove; 528. Snap-in protrusion; 529. Snap-in circular groove; 7. Plug. DETAILED DESCRIPTION

[0032] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0033] See also Figures 1-8 A reinforced hinge with auxiliary positioning blades includes a first blade 1 and a second blade 2. A connecting tube 11 is provided on the first blade 1, and positioning tubes 21 are provided at both ends of the second blade 2. The connecting tube 11 is plugged with a connecting shaft 3. The connecting tube 11 and the positioning tube 21 are kept in rotation connection through the connecting shaft 3. It also includes an auxiliary positioning blade 4. Auxiliary positioning blades 4 are provided on both the first blade 1 and the second blade 2. Auxiliary positioning holes 41 are opened on the auxiliary positioning blades 4. The auxiliary positioning blades 4 are set at an angle to the setting surface.

[0034] A plurality of connection holes are provided on the outer walls of the first blade 1 and the second blade 2 for connecting with the door frame or door panel. Figure 1 and Figure 3As shown, auxiliary positioning blades 4 are provided on the first blade 1 and the second blade 2. The auxiliary positioning blades 4 are vertically arranged on the first blade 1 or the second blade 2. The first blade 1, the second blade 2 and the auxiliary positioning blades 4 arranged thereon are at right angles and can be adapted to the edge angles of the door frame or door panel, so that during assembly, the first blade 1 or the second blade 2 can be directly pressed against the edge of the door panel or door frame to complete the initial positioning. Subsequently, it is only necessary to use screws to connect the connecting holes on the first blade 1 or the second blade 2 to the door frame or door panel, and finally connect the auxiliary positioning holes 41 on the auxiliary positioning blades 4 to the door frame or door panel through screws to complete the fixation. This not only facilitates positioning during assembly, but also greatly improves the torsional resistance of the hinge after assembly, prevents torsional deformation after long-term use, and extends the overall service life of the hinge.

[0035] As an embodiment provided by the present invention, the setting position of the auxiliary positioning blade 4 on the first blade 1 has a certain distance from the connecting tube 11, and the setting position of the auxiliary positioning blade 4 on the second blade 2 has a certain distance from the positioning tube 21, so that the first blade 1 and the second blade 2 have an overall T-shaped structure in cross section, thereby increasing the strength after connection.

[0036] As a further embodiment provided by the present invention, Figure 1 and Figure 3 As shown, it also includes an oil-free bearing 5, such as Figure 2 and Figure 4 As shown, the oil-free bearing 5 is sleeved on the connecting shaft 3, and one end of the oil-free bearing 5 is inserted into the inside of the connecting cylinder 11. The connecting shaft 3 passes through the two positioning cylinders 21 and the oil-free bearing 5. Preferably, the number of the oil-free bearings 5 ​​is two, and the two oil-free bearings 5 ​​are respectively arranged at both ends of the connecting cylinder 11 and between the two positioning cylinders 21.

[0037] As an embodiment provided by the present invention, the oil-free bearing 5 is made of nylon. The connecting tube 11 of the first blade 1 and the positioning tube 21 of the second blade 2 are isolated by the nylon oil-free bearing 5, so that when the hinge rotates, the connecting tube 11 and the positioning tube 21 both rotate at both ends of the oil-free bearing 5. The self-lubricating property of the nylon material can reduce wear and tear, and at the same time can further improve the smoothness of the opening and closing of the door panel and, compared with the contact with the metal structure, can eliminate the abnormal noise generated during the rotation of the metal hinge when the door panel is opened and closed.

[0038] As a first embodiment of the oil-free bearing 5 provided by the present invention, Figure 2As shown, the oil-free bearing 5 includes a boss end 511 and a platform end 512. The boss end 511 and the platform end 512 are an integrated structure. The diameter of the boss end 511 is smaller than the size of the platform end 512, and a through hole for the connecting shaft 3 to pass through is opened inside the oil-free bearing 5. Furthermore, the outer wall of the boss end 511 is a wedge-shaped structure. As an embodiment provided by the present invention, the angle of the external wedge structure of the boss end 511 is 1°-3°, that is, the taper of the outer wall of the boss end 511 is 1°-3°, and the end of the boss end 511 is provided with a chamfer to facilitate the boss end 511 to be plugged into the connecting cylinder 11. A plug-in groove 12 is opened inside the connecting cylinder 11. During installation, the oil-free bearing 5 can be inserted into the plug-in groove 12 through the boss end 511, and the connecting shaft 3 is isolated from the connecting cylinder 11 by the boss end 511, thereby preventing the connecting shaft 3 from directly contacting the connecting cylinder 11, and preventing the metal parts from contacting and wearing during use to produce powder causing abnormal noise and jamming.

[0039] The utility model can directly abut the side of the door frame or door panel during installation through the auxiliary positioning blade 4 vertically arranged on the first blade 1 and the second blade 2. Since the auxiliary positioning blade 4 is vertically arranged on the first blade 1 or the second blade 2, it can directly fit with the side of the door frame or door panel, and can be quickly positioned to the edge of the door frame or door panel during assembly, reducing the time for repeated adjustments and facilitating installation. Auxiliary positioning holes 41 are provided on the auxiliary positioning blade 4, which can be connected to the other side of the door frame or door panel by screws, so that there are two connecting surfaces between the first blade 1 or the second blade 2 and the door frame or door panel, which can enhance the connection strength between the first blade 1, the second blade 2 and the door frame or door panel, and improve the overall service life of the hinge;

[0040] By adding an oil-free bearing 5 at the connection between the first blade 1 and the second blade 2, the lubrication of the connection between the first blade 1 and the second blade 2 is increased, so as to improve the lubrication after long-term use. At the same time, the boss end 511 of the oil-free bearing 5 is inserted into the connecting tube 11 on the first blade 1, so that the connecting shaft 3 is isolated from the connecting tube 11 of the first blade 1, thereby preventing the connecting shaft 3 from directly contacting the connecting tube 11 during use, and preventing wear and tear after long-term use to generate noise and abnormal sounds.

[0041] As a second embodiment of the oil-free bearing 5 provided by the present invention, Figure 4 、 Figure 5 and Figure 6As shown, the oil-free bearing 5 also includes a rotating ring 522, an inclined groove 525 is provided at the bottom of the platform end 512, and an inclined surface 526 is provided on the rotating ring 522. The rotating ring 522 is connected to the connecting shaft 3, and the rotating ring 522 is located between the positioning cylinder 21 of the second blade 2 and the platform end 512. The rotating ring 522 can maintain a rotational connection with the inclined groove 525 of the platform end 512 through the inclined surface 526. Preferably, the rotating ring 522 is made of nylon material, and contacts with the positioning cylinder 21 through the rotating ring 522, so that the positioning cylinder 21 and the platform end 512 are only in contact through the rotating ring 522. The contact between the platform end 512 and the rotating ring 522 made of nylon material can further improve the smoothness of the hinge during use.

[0042] The cross-section of the inclined groove 525 is V-shaped, and the cross-section of the inclined surface 526 is V-shaped, so that the device can still rotate smoothly after long-term use.

[0043] As a further embodiment provided by the present invention, Figure 5 As shown, a positioning protrusion 523 is provided on the circumferential outer wall of the boss end 511. Specifically, the positioning protrusion 523 can be V-shaped, arc-shaped or rectangular. By plugging the positioning protrusion 523 into the connecting tube 11, the boss end 511 can be prevented from rotating together with the first blade 1. The boss end 511 is a wedge-shaped structure as a whole, which can facilitate the insertion of the oil-free bearing 5 into the connecting tube 11.

[0044] Further, such as Figure 5 As shown, a notch 513 is provided on the boss end 511. The notch 513 is provided at the end of the boss end 511 and is located above the plug-in boss 524. By providing the notch 513 on the boss end 511, the mold can be easily demolded during the production process, which can improve the production efficiency of the product.

[0045] As a further embodiment provided by the present invention, a plug-in circular groove 527 is provided at the bottom of the platform end 512, and a plug-in boss 524 is provided on the rotating ring 522. The rotating ring 522 can be plugged into the plug-in circular groove 527 through the plug-in boss 524, which can assist in positioning the rotating ring 522 and the platform end 512.

[0046] As a further embodiment provided by the present invention, Figure 8 As shown, a snap-fit ​​protrusion 528 is provided on the plug-in boss 524, and a snap-fit ​​circular groove 529 is opened on the inner wall of the plug-in circular groove 527. The plug-in boss 524 is snapped into the snap-fit ​​circular groove 529 through the snap-fit ​​protrusion 528, which can keep the rotating ring 522 tightly connected with the platform end 512 and prevent the rotating ring 522 from falling out.

[0047] In this embodiment, when the first blade 1 rotates, it rotates on the rotating ring 522 through the platform end 512, and when the second blade 2 rotates, it rotates on the platform end 512 through the rotating ring 522, which can further improve the smoothness of the door panel opening and closing and enhance the feel of use.

[0048] In this embodiment, the connecting tube 11 and the positioning tube 21 are both bent to facilitate processing and reduce production costs.

[0049] As an embodiment provided by the present utility model, Figure 4 and Figure 2 As shown, it also includes a plug 7, which is inserted into one end of the positioning cylinder 21, and the end of the connecting shaft 3 is inserted into the inside of the plug 7. Preferably, the inner hole of the end of the plug 7 used to insert the connecting shaft 3 is a wedge-shaped structure. As an embodiment provided by the present invention, the angle of the external wedge structure at one end of the plug 7 is 1°-3°, that is, the taper of the outer wall of one end of the plug 7 is 1°-3°. After size design, after the connecting shaft 3 is inserted into the inside of the plug 7, the end of the plug 7 located inside the positioning cylinder 21 expands and deforms slightly outward, and the plug 7 is located inside the positioning cylinder 21. The inner wall of the positioning cylinder 21 can exert an inward extrusion force on the part of the plug 7 located inside it, thereby fixing the plug 7 in the positioning cylinder 21 to prevent it from falling.

[0050] By inserting the connecting shaft 3 into the plug 7, a portion of the plug 7 is provided between the end of the connecting shaft 3 and the end of the positioning cylinder 21, thereby blocking the connecting shaft 3 and the positioning cylinder 21, preventing the connecting shaft 3 and the positioning cylinder 21 from direct contact during use, and preventing the connecting shaft 3 and the positioning cylinder 21 from wearing and making abnormal noises and producing wear powder after long-term use. Jamming.

[0051] The hinge structure provided by the present invention prevents the connecting shaft 3 from directly contacting the first blade 1 and the second blade 2, thereby avoiding abnormal noise caused by wear and tear of the metal structure and jamming caused by wear powder.

[0052] Those skilled in the art will appreciate that other similar connection methods can also implement the present invention, such as welding, bonding, or screwing.

[0053] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A reinforced hinge with auxiliary positioning blades, comprising a first blade (1) and a second blade (2), wherein the first blade (1) is provided with a connecting cylinder (11), and both ends of the second blade (2) are provided with positioning cylinders (21), the connecting cylinder (11) is plugged with a connecting shaft (3), and the connecting cylinder (11) and the positioning cylinder (21) are kept in rotational connection via the connecting shaft (3), characterized in that: It also includes an auxiliary positioning blade (4), wherein the first blade (1) and the second blade (2) are both provided with an auxiliary positioning blade (4), an auxiliary positioning hole (41) is opened on the auxiliary positioning blade (4), and the auxiliary positioning blade (4) is arranged at an angle to the setting surface; It also includes an oil-free bearing (5), the oil-free bearing (5) is sleeved on the connecting shaft (3), and the oil-free bearing (5) is arranged at the connection between the first blade (1) and the second blade (2); The oil-free bearing (5) comprises a boss end (511) and a platform end (512); the platform end (512) has a larger diameter than the boss end (511); the outer wall of the boss end (511) is a wedge-shaped structure; the connecting shaft (3) passes through the oil-free bearing (5), and the boss end (511) is inserted into the connecting cylinder (11).

2. The reinforced hinge with auxiliary positioning blade according to claim 1, characterized in that: The oil-free bearing (5) further comprises a rotating ring (522), wherein the rotating ring (522) is sleeved on the connecting shaft (3), an inclined slot (525) is provided at the bottom of the platform end (512), and an inclined surface (526) is provided at the top of the rotating ring (522), wherein the inclined slot (525) is adapted to the inclined surface (526), ​​and the rotating ring (522) is kept in rotational connection with the inclined surface (526) via the inclined slot (525).

3. The reinforced hinge with auxiliary positioning blade according to claim 2, characterized in that: A positioning protrusion (523) is provided on the circumferential outer wall of the boss end (511), and the boss end (511) is a wedge-shaped structure as a whole, with the angle of the wedge-shaped structure on the boss end (511) being 1°-3°.

4. The reinforced hinge with auxiliary positioning blades according to claim 2, characterized in that: A plug-in circular groove (527) is provided inside the bottom of the platform end (512), and a plug-in boss (524) is installed on the rotating ring (522), and the plug-in boss (524) is plugged into the plug-in circular groove (527).

5. The reinforced hinge with auxiliary positioning blades according to claim 4, characterized in that: A clamping protrusion (528) is provided on the plug-in boss (524), a clamping circular groove (529) is provided on the inner wall of the plug-in circular groove (527), and the plug-in boss (524) is clamped to the clamping circular groove (529) via the clamping protrusion (528).

6. The reinforced hinge with auxiliary positioning blades according to claim 1, characterized in that: It also includes a plug (7), the plug (7) is plugged into the positioning cylinder (21), the end of the connecting shaft (3) is plugged into the inside of the plug (7), and the outer wall of one end of the plug (7) is a wedge-shaped structure.

7. The reinforced hinge with auxiliary positioning blades according to claim 3, characterized in that: The boss end (511) is provided with a notch (513), and the notch (513) is provided at the end of the boss end (511) and is located above the plug-in boss (524).

8. The reinforced hinge with auxiliary positioning blades according to claim 1, characterized in that: The angle is a vertical angle.

9. The reinforced hinge with auxiliary positioning blades according to claim 2, characterized in that: The cross-sectional shape of the inclined chute (525) is V-shaped, and the cross-sectional shape of the inclined surface (526) is V-shaped.

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