A low-resistance hinge

Abstract

The present invention discloses a low-resistance hinge, which comprises a bottom plate body, a connecting plate, a second connecting piece and a first connecting piece. The second connecting piece includes a second rolling support member disposed between the first connecting piece and the bottom plate body. A first rolling support member is disposed between the first connecting piece and the second connecting piece, and the first rolling support member enables rolling friction between the first connecting piece and the second connecting piece. The second rolling support member enables rolling friction between the first connecting piece and the bottom plate body. During rotation, the friction mode of part of the contact surface changes from traditional sliding friction to rolling friction, the frictional force during the rotation of the hinge is significantly reduced, and the hinge runs more smoothly and stably, so that the opening and closing of doors and windows are more smooth and labor-saving.

Description

Technical Field

[0001] The present invention relates to the technical field of door and window hinges, and particularly to a low-resistance hinge. Background Art

[0002] As a load-bearing component for opening and closing doors and windows, the invisible hinge of aluminum alloy doors and windows is completely hidden after the doors and windows are closed, and is widely welcomed by the market for its excellent sealing performance and the aesthetics of the whole window. However, since it is a load-bearing component, all the connecting components of the hinge must be tightly connected to ensure that the doors and windows will not drop corners due to the loosening of the components. Usually, rivets or sliders are used to connect the components. When using rivets to connect, the two components will be closely fitted. During the opening and closing process of the doors and windows, these fitted components will generate sliding friction. The more riveted places there are, the greater the resistance to opening or closing the hinge will be when in use, resulting in difficult and strenuous opening and closing of the windows. Summary of the Invention

[0003] The purpose of the present invention is to provide a low-resistance hinge to solve one or more technical problems existing in the prior art, and at least provide a beneficial alternative or create conditions.

[0004] The technical solution adopted to solve the above technical problems:

[0005] The present invention provides a low-resistance hinge, which includes a bottom plate body, a connecting plate, a second connecting piece, and a first connecting piece. The two ends of the bottom plate body are respectively a first bottom plate end and a second bottom plate end, and a first sliding hole is provided near the first bottom plate end of the bottom plate body; the two ends of the connecting plate are respectively a first plate end and a second plate end, and a second sliding hole is provided in the middle of the connecting plate; the two ends of the second connecting piece are respectively a first sliding end and a second sliding end, a sliding block is provided at the first sliding end, the sliding block is slidably arranged in the first sliding hole, the first sliding end is slidably arranged above the first bottom plate end through the sliding block, a sliding member is provided at the second sliding end, the sliding member is slidably arranged in the second sliding hole, and the second sliding end is slidably arranged below the bottom plate body through the sliding block; the two ends of the first connecting piece are respectively a first connecting end and a second connecting end, the first connecting end is fixedly arranged below the first plate end through a first connecting member, the second connecting end is arranged above the middle of the bottom plate body through a second connecting member, a first rolling support member is arranged between the first connecting piece and the second connecting piece, and a second rolling support member is arranged between the first connecting piece and the bottom plate body.

[0006] The beneficial effect of the present invention is:

[0007] The first rolling support makes the friction between the first connecting piece and the second connecting piece a rolling friction, and the second rolling support makes the friction between the first connecting piece and the bottom plate body a rolling friction. The friction mode of some contact surfaces between the first connecting piece and the second connecting piece and between the first connecting piece and the bottom plate body during rotation changes from the traditional sliding friction to rolling friction. The frictional force during the rotation of the hinge is significantly reduced, and the hinge runs more smoothly and stably, so that the opening and closing of the doors and windows are more smooth and labor-saving.

[0008] As a further improvement of the above technical solution, the first rolling support is arranged at the hinged position of the first connecting piece and the second connecting piece.

[0009] The first rolling support and the second rolling support are added to the rotating connection of the hinge with low resistance, so that the friction mode between the two components at the rotating connection changes from the traditional sliding friction to rolling friction. The frictional force during the rotation of the hinge is significantly reduced, and the hinge runs more smoothly and stably, so that the opening and closing of the doors and windows are more smooth and labor-saving.

[0010] As a further improvement of the above technical solution, both the first rolling support and the second rolling support are planar thrust bearings. The planar thrust bearing is uniformly stressed during the operation of the hinge, and there will be no loosening towards the stressed side due to wear caused by always being stressed in the same place. The planar thrust bearing is not easily damaged, which can also improve the stability of the hinge operation and further improve the smoothness of the operation.

[0011] As a further improvement of the above technical solution, the first plate end is provided with an up-and-down adjustment component. When the door and window sizes and installation positions differ by no more than 2 mm, through the adjustment of the up-and-down adjustment component, it is convenient for correct installation and reduces the abnormal situation of the opening and closing of the doors and windows caused by problems such as the non-compliance of the aluminum alloy door and window sizes and installation misalignment.

[0012] As a further improvement of the above technical solution, the up-and-down adjustment component includes a connection seat, an up-and-down adjustment screw, and an adjustment sleeve. The connection seat is riveted to the first plate end through the adjustment sleeve, and the up-and-down adjustment screw is threadedly connected to the adjustment sleeve.

[0013] The up-and-down adjustment part is divided into two parts. The adjustment sleeve that bears the main force is directly riveted to the connecting plate. The riveting strength of the large-size adjustment sleeve is improved, and the connection seat sleeved on the outer circle not only ensures the overall strength of the up-and-down adjustment part, but also can be used as a component for riveting and positioning the adjustment sleeve and installing and positioning the hinge.

[0014] As a further improvement of the above technical solution, a positioning sleeve is sleeved on the connection seat.

[0015] As a further improvement of the above technical solution, the adjusting sleeve is a stainless steel component. The use of stainless steel for the adjusting sleeve can well meet the requirement of high temperature resistance, and this hinge can be used as a load-bearing component for fireproof windows and fire-resistant windows.

[0016] As a further improvement of the above technical solution, the second plate end is provided with a fixing piece and left and right adjusting screws. The fixing piece is provided with left and right adjusting holes, and the left and right adjusting screws pass through the left and right adjusting holes. The second plate end is fixed to the fixing piece through the left and right adjusting screws.

[0017] By adjusting the left and right of the doors and windows through the left and right adjusting screws, the smooth installation of the doors and windows is achieved.

[0018] As a further improvement of the above technical solution, the low-resistance hinge further includes a locking screw. A clamping groove is provided at the left end of the fixing piece. After the locking screw passes through the clamping groove, it is threadedly connected to the second plate end, and the fixing piece is abutted below the second plate end.

[0019] The locking screw further increases the connection strength between the fixing piece and the connecting plate.

[0020] As a further improvement of the above technical solution, the sliding part is an eccentric structure.

[0021] During installation, mainly fine-tuning of the doors and windows is carried out, so the eccentric structure can achieve fine-tuning of the doors and windows in the front-back direction. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The following further describes the present invention in conjunction with the drawings and embodiments;

[0023] Figure 1 FIG. is an exploded structural schematic diagram of a low-resistance hinge provided by the present invention, in which the four arrows respectively represent the forward, backward, upward, and downward directions;

[0024] Figure 2 FIG. is a structural schematic diagram of an embodiment of a low-resistance hinge provided by the present invention;

[0025] Figure 3 FIG. is a structural schematic diagram of the installation of a planar thrust bearing in an embodiment of a low-resistance hinge provided by the present invention;

[0026] Figure 4 FIG. is a structural schematic diagram of the application of a low-resistance hinge provided by the present invention to doors and windows;

[0027] Figure 5 FIG. is a structural schematic diagram of a connecting plate and a fixing piece in an embodiment of a low-resistance hinge provided by the present invention;

[0028] Figure 6It is a partial structural schematic diagram of an embodiment of a low - resistance hinge provided by the present invention;

[0029] Figure 7 It is a structural schematic diagram of a connecting plate and a second connecting piece of an embodiment of a low - resistance hinge provided by the present invention;

[0030] Figure 8 It is a structural schematic diagram of an up - and - down adjustment assembly of an embodiment of a low - resistance hinge provided by the present invention. Detailed implementation manners

[0031] This part will describe the specific embodiments of the present invention in detail. The preferred embodiments of the present invention are shown in the drawings. The role of the drawings is to supplement the description in the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present invention. However, it should not be construed as a limitation on the protection scope of the present invention.

[0032] In the description of the present invention, it should be understood that for orientation descriptions, such as up, down, front, back, left, right, etc., the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on the present invention.

[0033] In the description of the present invention, if there are descriptions with words such as "several", its meaning is one or more, and the meaning of multiple is more than two. Understandings such as greater than, less than, exceeding, etc. do not include the present number, and understandings such as above, below, within, etc. include the present number.

[0034] In the description of the present invention, unless otherwise clearly defined, words such as setting, installing, connecting, etc. should be understood in a broad sense. Those skilled in the art can reasonably determine the specific meanings of the above words in the present invention in combination with the specific content of the technical solution.

[0035] Refer to Figures 1 to 8 , the following embodiments are made for a low - resistance hinge of the present invention:

[0036] In some embodiments, a low - resistance hinge includes a bottom plate body 100, a connecting plate 200, a second connecting piece 300, and a first connecting piece 400. Refer to Figure 4 , the bottom plate body 100 is fixed on the frame of the door or the bed, generally the upper or lower frame. In this embodiment, taking the bottom plate body 100 being set on the lower frame as an example, correspondingly, the connecting plate 200 is set on the lower edge of the door or window, and the bottom plate body 100 and the connecting plate 200 are connected through the second connecting piece 300 and the first connecting piece 400 which are overlapped with each other.

[0037] Specifically, the two ends of the bottom plate body 100 are respectively the first bottom plate end and the second bottom plate end. A first sliding hole 110 is provided near the first bottom plate end of the bottom plate body 100. The first sliding hole 110 extends along the extending direction of the bottom plate body 100. The bottom plate body 100 is also provided with a quick-installation screw piece 970 and a quick-installation rivet 960. The quick-installation screw piece 970 is riveted on the bottom plate body 100 with the quick-installation rivet 960. There are a total of two groups of quick-installation rivets 960 and quick-installation screw pieces 970. By screwing a setscrew into the screw hole on the bottom plate body 100, the installation of the doors and windows can be completed quickly and accurately. Moreover, after the quick installation, the doors and windows can be reinforced with self-tapping screws;

[0038] The two ends of the connecting plate 200 are respectively the first plate end and the second plate end. A second sliding hole 210 is provided in the middle of the connecting plate 200. The second sliding hole 210 extends along the sliding direction of the connecting plate 200. Figure 1 Taking the direction in

[0039] The two ends of the second connecting piece 300 are respectively the first sliding end and the second sliding end. A sliding block 310 is provided at the first sliding end. The sliding block 310 is slidably arranged in the first sliding hole 110. The first sliding end is slidably arranged above the first bottom plate end through the sliding block 310. In actual installation, the sliding block 310 and the first sliding end are riveted together with a riveting rivet two 940. A sliding member is provided at the second sliding end. The sliding member 320 is slidably arranged in the second sliding hole 210. The second sliding end is slidably arranged below the bottom plate body 100 through the sliding block 310. The sliding member 320 can specifically be a slider nut, an eccentric screw, etc. In this embodiment, the sliding member 320 can also be a front-back adjustment screw. The front-back adjustment screw passes through the second sliding hole 210 and is riveted together with the second sliding end;

[0040] The two ends of the first connecting piece 400 are respectively the first connecting end and the second connecting end. The first connecting end is fixedly arranged below the first plate end through a first connecting member; the second connecting end is arranged above the middle of the bottom plate body 100 through a second connecting member. The first connecting member is a support screw 910, and the second connecting member is a rivet three 930. A first rolling support member 500 is arranged between the first connecting piece 400 and the second connecting piece 300. The first rolling support member 500 enables rolling friction between the first connecting piece 400 and the second connecting piece 300. The second rolling support member 600 enables rolling friction between the first connecting piece 400 and the bottom plate body 100. The friction mode of some contact surfaces during the rotation between the first connecting piece 400 and the second connecting piece 300, and between the first connecting piece 400 and the bottom plate body 100 is changed from traditional sliding friction to rolling friction. The friction force during the rotation of the hinge is significantly reduced, and the hinge runs more smoothly and stably. Therefore, the opening and closing of the doors and windows are more smooth and labor-saving.

[0041] Further, in order to make the hinge run more smoothly and steadily and increase the area of rolling friction of the hinge, a first rolling support member 500 and a second rolling support member 600 are added to the rotating connection of the low-resistance hinge. That is, the first rivet 950 passes through the first connecting piece 400 and the second connecting piece 300, and the third rivet 930 passes through the first connecting piece 400, the second rolling support member 600, and the bottom plate body 100, and then the first rivet 950 and the third rivet 930 are riveted successively.

[0042] The friction mode between the two components at the rotating connection is changed from traditional sliding friction to rolling friction, the friction force during the rotation of the hinge is significantly reduced, the hinge runs more smoothly and steadily, and thus the opening and closing of the doors and windows are more smooth and labor-saving.

[0043] Among them, the first rolling support member 500 and the second rolling support member 600 can be plane thrust bearings. A plane thrust bearing is an element composed of a plane cage assembly with needle rollers or cylindrical rollers or steel balls and a plane washer. The plane thrust bearing mainly bears axial loads, and the plane thrust bearing is uniformly stressed during the operation of the hinge. After the hinge is installed on the doors and windows, the force on the hinge often tends to one side. For the hinge riveted with gaskets, the gaskets are often riveted very tightly, and the gaskets will not rotate with the operation of the hinge. Therefore, the force on the gaskets will always press on the same side and wear the same place. After a long time, it will cause the hinge to loosen and break at the force-bearing side. Since the plane thrust needle bearing rotates randomly during the operation of the hinge, the plane thrust needle bearing will not always be stressed at the same place, which not only protects the bearing but also ensures that the entire hinge will not loosen and break at the force-bearing side. Compared with traditional gaskets, there will be no loosening at the force-bearing side due to wear at the same place all the time. The plane thrust bearing is not easily damaged and can also improve the stability of the hinge operation.

[0044] Among them, the use of a plane thrust needle bearing is more suitable for occasions with large load requirements and small space dimensions. The plane thrust ball bearing is larger in space size than the plane thrust needle bearing. Therefore, the use of a plane thrust needle bearing has a good load-bearing effect and meets the requirements for the installation of invisible hinges.

[0045] In some other embodiments, the first rolling support member 500 and the second rolling support member 600 are provided with a cage assembly. A plurality of fixing grooves are provided on the cage assembly, and a plurality of rolling elements are provided in the fixing grooves. The fixing elements are rollingly arranged in the fixing grooves. The rolling elements can be balls or cylindrical rollers. The upper surface and the lower surface of the balls respectively perform rolling friction with two relatively sliding surfaces. Taking the first rolling support member 500 as an example, the balls are respectively in contact with the lower surface of the first connecting piece 400 and the upper surface of the second connecting piece 300, changing the traditional sliding friction to rolling friction, but its stability is not as good as that of the plane thrust needle bearing.

[0046] Furthermore, on the construction site, problems such as the size of aluminum alloy doors and windows not meeting the requirements and misalignment during installation often lead to abnormal opening and closing of the doors and windows, and it is difficult to avoid such situations. When the size and installation position of the doors and windows differ by no more than 2 mm, in order to conveniently solve such problems, the present invention designs a three-dimensional adjustment function in the hinge, that is, up and down adjustment, left and right adjustment, and front and back adjustment, which is convenient for correct installation and reduces the abnormal opening and closing of the doors and windows caused by problems such as the size of aluminum alloy doors and windows not meeting the requirements and misalignment during installation.

[0047] After the installation of the doors and windows is completed, the left and right adjustment of the doors and windows is required, referring to Figure 5 , and the adjustment is carried out by setting the fixing piece 800. The second plate end is provided with a fixing piece 800 and a left and right adjustment screw 820. The fixing piece 800 is provided with a left and right adjustment hole 810. The left and right adjustment screw 820 passes through the left and right adjustment hole 810, and the second plate end is fixed on the fixing piece 800 by the left and right adjustment screw 820. The fixing piece 800 is fixed on the bottom of the doors and windows by bolts and other connecting pieces. For further fixation, a locking screw 900 is also provided. A card slot 830 is provided at the left end of the fixing piece 800. After the locking screw 900 passes through the card slot 830, it is threadedly connected to the second plate end, and the fixing piece 800 is abutted against the lower part of the second plate end. The locking screw 900 further increases the connection strength between the fixing piece 800 and the connecting plate 200. The left and right adjustment screw 820 is an eccentric structure.

[0048] During adjustment, the left and right adjustment of the doors and windows can be realized by loosening the locking screw and turning the left and right adjustment screw 820 with an internal hexagon wrench.

[0049] When the up and down gap of the doors and windows needs to be adjusted, the up and down adjustment of the doors and windows can be realized by turning the up and down adjustment screw 720 with an internal hexagon wrench. Referring to Figure 6 , the first plate end is provided with an up and down adjustment assembly. The up and down adjustment assembly includes a connecting seat 710, an up and down adjustment screw 720, and an adjustment sleeve 730. The connecting seat 710 is riveted on the first plate end through the adjustment sleeve 730, and the up and down adjustment screw 720 is threadedly connected to the adjustment sleeve 730.

[0050] A positioning sleeve 740 can also be sleeved on the connecting seat 710.

[0051] Generally, either the connecting plate 200 and the up and down adjustment assembly of the hinge are an integral body. This structure generally uses zinc alloy material, and the overall strength will be slightly insufficient and it is not resistant to high temperature; the up and down adjustment assembly is directly riveted on the connecting plate 200, but the riveting space is limited, the size of the connecting rivets will be very small, and the riveting strength between the up and down adjustment assembly and the connecting plate 200 will be insufficient.

[0052] The present invention divides the up-and-down adjustment part into two parts, directly rivets the adjusting sleeve 730 that bears the main force on the connecting plate 200. For the large-sized adjusting sleeve 730, the riveting strength is improved. The connecting seat 710 sleeved on the outer circle not only ensures the overall strength of the up-and-down adjustment part, but also can be used as a component for riveting and positioning the adjusting sleeve 730 and hinge installation positioning. In addition, the adjusting sleeve is made of stainless steel, which can well meet the requirement of high temperature resistance, so that the hinge can be used as a load-bearing component for fireproof windows and fire-resistant windows.

[0053] In the case of misalignment between the frame and the front and rear of the doors and windows, the problem can be solved by turning the front-and-rear adjustment screw of the eccentric structure with an Allen wrench. At this time, the sliding part 320 is set as an eccentric structure. During installation, mainly fine-tuning of the doors and windows is carried out, so the eccentric structure can realize fine-tuning of the doors and windows in the front-and-rear direction.

[0054] The assembly steps of the hinge are as follows:

[0055] Step 1: Rivet the connecting plate 200 and the fixing piece 800 together with the left-and-right adjusting screw 820, and then insert the locking screw 900 into the screw hole on the connecting plate 200 through the card slot 830 of the fixing piece 800. Rivet the connecting seat 710 and the connecting plate 200 together with the adjusting sleeve 730, then screw in the up-and-down adjusting screw 720, and snap the positioning sleeve 740 into the connecting seat 710.

[0056] Step 2: Rivet the quick-installing screw piece 970 to the bottom plate body 100 with the quick-installing rivet 960, a total of two groups of quick-installing rivets 960 and quick-installing screw pieces 970. Screw the set screw into the screw hole on the bottom plate body 100.

[0057] Step 3: Place the flat thrust needle bearing between the connecting piece one 400 and the connecting piece two 300, and then rivet the three together with the rivet one 950. Rivet the support pin 910 to the connecting piece one 400.

[0058] Step 4: Place the flat thrust needle bearing between the connecting piece one 400 and the bottom plate body 100. The rivet two 940 passes through the connecting piece two 300, the bottom plate body 100, and the sliding block 310. The rivet three 930 passes through the connecting piece one 400, the flat thrust needle bearing, and the bottom plate body 100, and then rivet the rivet two 940 and the rivet three 930 tightly in sequence.

[0059] Step 5: Pass the support pin 910 on the assembled component through the hole of the adjusting sleeve 730, and then pass the left-and-right adjusting screw 820 through the connecting plate 200 and the connecting piece two 300, and then rivet the left-and-right adjusting screw 820 to complete the assembly of the whole set of hinge. After assembly, as Figure 2 shown.

[0060] The preferred embodiments of the present invention have been specifically described above. However, the present invention is not limited to the embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and these equivalent modifications or substitutions are all included within the scope defined by the claims of this application.

Claims

1. A low-resistance hinge, characterized in that, Comprising: A bottom plate body (100) with two ends being a first bottom plate end and a second bottom plate end respectively, and a first sliding hole (110) is provided near the first bottom plate end of the bottom plate body (100); A connecting plate (200) with two ends being a first plate end and a second plate end respectively, and a second sliding hole (210) is provided in the middle of the connecting plate (200); A second connecting piece (300) with two ends being a first sliding end and a second sliding end respectively, a sliding block (310) is provided at the first sliding end, the sliding block (310) is slidably arranged in the first sliding hole (110), the first sliding end is slidably arranged above the first bottom plate end through the sliding block (310), a sliding member (320) is provided at the second sliding end, the sliding member (320) is slidably arranged in the second sliding hole (210), and the second sliding end is slidably arranged below the bottom plate body (100) through the sliding block (310); A first connecting piece (400) with two ends being a first connecting end and a second connecting end respectively, the first connecting end is fixedly arranged below the first plate end through a first connecting member, the second connecting end is arranged above the middle of the bottom plate body (100) through a second connecting member, a first rolling support member (500) is arranged between the first connecting piece (400) and the second connecting piece (300), and a second rolling support member (600) is arranged between the first connecting piece (400) and the bottom plate body (100); An up-and-down adjusting assembly is provided at the first plate end, and the up-and-down adjusting assembly includes a connecting seat (710), an up-and-down adjusting screw (720), and an adjusting nut (730). The connecting seat (710) is riveted to the first plate end through the adjusting nut (730), the up-and-down adjusting screw (720) is threadedly connected to the adjusting nut (730), a positioning sleeve (740) is sleeved on the connecting seat (710), and the adjusting nut (730) is a stainless steel member.

2. A low-resistance hinge according to claim 1, characterized in that: The first rolling support member (500) is arranged at the hinged position between the first connecting piece (400) and the second connecting piece (300), and the second rolling support member (600) is arranged at the hinged position between the first connecting piece (400) and the bottom plate body (100).

3. A low-resistance hinge according to claim 1, characterized in that: Both the first rolling support member (500) and the second rolling support member (600) are flat thrust bearings.

4. A low-resistance hinge according to claim 1, characterized in that: A fixing piece (800) and a left-and-right adjusting screw (820) are provided at the second plate end, a left-and-right adjusting hole (810) is provided on the fixing piece (800), the left-and-right adjusting screw (820) passes through the left-and-right adjusting hole (810), and the second plate end is fixed to the fixing piece (800) through the left-and-right adjusting screw (820).

5. A low-resistance hinge according to claim 4, characterized in that: The low-resistance hinge further includes a locking screw (900). A card slot (830) is provided at the left end of the fixing piece (800). After passing through the card slot (830), the locking screw (900) is threadedly connected to the second plate end, and the fixing piece (800) is abutted against the lower part of the second plate end.

6. The low-resistance hinge according to claim 1, wherein: The sliding member (320) is of an eccentric structure.

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