Door handle

Abstract

The application discloses a door and window handle, which comprises a base, a limiting seat, a handle, a pressing mechanism and a decorative outer ring. The base is internally provided with a positioning mechanism, the limiting seat is installed on the positioning mechanism, the positioning mechanism is used for locking the limiting seat on the base, the handle is rotatably arranged on the limiting seat, one side of the base close to the handle is provided with a detachable cover plate, the limiting seat is internally provided with a mounting seat, the pressing mechanism comprises a plastic ball which is slidably connected to the mounting seat and a first spring which is sleeved in the mounting seat, one end of the first spring is in abutment with the plastic ball so as to press the plastic ball towards the cover plate, and the decorative outer ring is sleeved on the outer wall of the base and one side of the decorative outer ring is in abutment with the cover plate. The door and window handle is suitable for being installed on a narrow space, and the appearance of the handle can be made consistent by an oxidized surface treatment process under the consideration of cost, and the appearance has high texture and high wear resistance.

Description

Technical Field

[0001] This invention relates to the field of door and window accessories technology, and in particular to a door and window handle. Background Technology

[0002] With the improvement of living standards, double-glazed windows (windows with screens) are becoming increasingly popular. However, due to the limited installation space between existing double-glazed window profiles, the handles need to be designed to be shorter. Based on this, users have raised new demands for door and window handles: on the one hand, they want the handles to not scratch the cover plate when turning, ensuring the cover plate's aesthetic appearance; on the other hand, they want the overall appearance of the handles to be consistent.

[0003] The existing handle replaces the steel spring that presses the cover plate with a plastic pad. The plastic pad has arc-shaped openings on both sides, giving it an elastic adjustment function. The plastic pad will not scratch the cover plate when it rotates. However, the plastic pad is prone to creep after a period of use and will fail, requiring replacement. In addition, the existing base is a one-piece design. Due to cost considerations, the materials used are different from those of other parts, resulting in color differences between the base and other parts after surface treatment. Therefore, a spray painting process can only be used to make the surface treatment of parts related to appearance consistent. The product has a low appearance quality and is prone to paint peeling due to scratches and long-term use.

[0004] It is evident that existing technologies still need improvement and enhancement. Summary of the Invention

[0005] In view of the shortcomings of the prior art, the present invention aims to provide a door and window handle that is suitable for installation in narrow spaces, and which, while taking cost into consideration, can achieve a consistent appearance, high texture, and high wear resistance through an oxidation surface treatment process.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A door and window handle includes a base, a limiting seat, a handle, a pressing mechanism, and a decorative outer ring. The base has a positioning mechanism, and the limiting seat is mounted on the positioning mechanism. The positioning mechanism is used to lock the limiting seat on the base. The handle is rotatably mounted on the limiting seat. The base has a detachable cover plate on the side near the handle. The limiting seat has a mounting seat. The pressing mechanism includes a plastic ball slidably connected to the mounting seat and a first spring sleeved in the mounting seat. One end of the first spring abuts against the plastic ball to press the plastic ball against the cover plate. The decorative outer ring is sleeved on the outer wall of the base, and one side of the decorative outer ring abuts against the cover plate.

[0008] Furthermore, the base is provided with a first receiving cavity and several second receiving cavities communicating with the first receiving cavity. The positioning mechanism includes a transmission gear, a steel ball, and a second spring. The transmission gear is rotatably disposed in the first receiving cavity. One steel ball is installed in one of the second receiving cavities. One end of the second spring abuts against the steel ball, and the other end abuts against the second receiving cavity to press the steel ball against the transmission gear. A limiting seat is disposed on the transmission gear.

[0009] Furthermore, there are two second receiving cavities, and the two second receiving cavities are arranged symmetrically at 180°; a first short column is provided in the second receiving cavity, and a second spring is sleeved on the first short column.

[0010] Furthermore, the transmission gear has a first shaft portion extending toward the limiting seat, the first shaft portion has at least one first recess, the limiting seat has a first protrusion matching the first recess, and the first shaft portion is connected to the limiting seat by screws.

[0011] Furthermore, the base is provided with a second shaft portion that penetrates the cover plate, and a washer is provided between the second shaft portion and the limiting seat, and the washer is rotatably connected to the first shaft portion.

[0012] Furthermore, the outer wall of the base is provided with several limiting blocks, and the decorative outer ring has a notch that matches the limiting blocks.

[0013] Furthermore, the base has a boss on the side near the cover plate, and the cover plate has a groove that matches the boss.

[0014] Furthermore, the handle is provided with a third receiving cavity, a limiting seat is located in the third receiving cavity, a pin is provided on the limiting seat, the pin is rotatably connected to the handle, and an inclined surface is provided at one end of the handle near the pin.

[0015] Furthermore, the third receiving cavity is provided with a mounting groove corresponding to the inclined surface position, the limiting seat is provided with a second short column, the second short column is sleeved with a third spring, one end of the third spring abuts against the limiting seat, and the other end abuts against the mounting groove.

[0016] Furthermore, the third receiving cavity is provided with a clearance groove corresponding to the position of the mounting seat, and the mounting seat extends into the clearance groove.

[0017] Beneficial effects: The clamping mechanism is pre-embedded in the limiting seat, saving installation space and reducing the overall height of the handle. The plastic ball, under the action of the first spring, is always pressed against the cover plate. When the handle is turned, the plastic ball rolls on the cover plate without scratching it, ensuring the cover plate's aesthetic appearance. Furthermore, the separate design of the decorative outer ring and base allows for the use of different materials for the base and internal parts, while maintaining consistency in the materials of the decorative outer ring, cover plate, and handle, thus ensuring a consistent product appearance. Additionally, when the decorative outer ring, cover plate, and handle are made of deformed aluminum alloy, anodizing can further enhance the product's texture and wear resistance. Attached Figure Description

[0018] Figure 1 The structural diagram of the door and window handle provided by the present invention.

[0019] Figure 2 This is a front sectional view of the positioning mechanism in the door and window handle provided by the present invention.

[0020] Figure 3 This is a side sectional view of the door and window handle provided by the present invention.

[0021] Figure 4 for Figure 3 Enlarged view of point A.

[0022] Figure 5 A side view of a door and window handle provided by the present invention.

[0023] Figure 6 An exploded view of a door and window handle provided by the present invention.

[0024] Figure 7 An exploded view from another perspective of the door and window handle provided by the present invention.

[0025] Explanation of main component symbols: Base 1, First receiving cavity 11, Second receiving cavity 12, First short column 13, Second shaft 14, Limiting block 15, Arc surface 151, Boss 16, Limiting seat 2, First protrusion 21, Pin 22, Second short column 23, Third spring 24, Second recess 25, Handle 3, Third receiving cavity 31, Inclined surface 32, Mounting groove 33, Clearance groove 34, Pressing mechanism 4, Plastic ball 41, First spring 42, Decorative outer ring 5, Notch 51, Positioning mechanism 6, Transmission gear 61, First shaft 611, First recess 612, Second protrusion 613, Steel ball 62, Second spring 63, Cover plate 7, Groove 71, Mounting seat 8, Washer 9. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] Please see Figure 1-7 This invention provides a door and window handle, including a base 1, a limiting seat 2, a handle 3, a pressing mechanism 4, and a decorative outer ring 5. The base 1 is provided with a positioning mechanism 6, and the limiting seat 2 is installed on the positioning mechanism 6. The positioning mechanism 6 is used to lock the limiting seat 2 on the base 1. The handle 3 is rotatably disposed on the limiting seat 2. The base 1 is provided with a detachable cover plate 7 on the side near the handle 3. The limiting seat 2 is provided with a mounting seat 8. The pressing mechanism 4 includes a plastic ball 41 slidably connected to the mounting seat 8 and a first spring 42 sleeved in the mounting seat 8. One end of the first spring 42 abuts against the plastic ball 41 to press the plastic ball 41 against the cover plate 7. The decorative outer ring 5 is sleeved on the outer wall of the base 1, and one side of the decorative outer ring 5 abuts against the cover plate 7.

[0028] In use, first lift the handle 3 upwards at an angle, then rotate the handle 3. The handle 3 drives the limiting seat 2 to rotate, and under the action of the positioning mechanism 6, the position of the limiting seat 2 on the base 1 is locked. During the rotation of the limiting seat 2, the pressing mechanism 4 rotates accordingly. Under the action of the first spring 42, the plastic ball 41 rolls along the surface of the cover plate 7, ensuring that the cover plate 7 is always pressed against the base 1. Since the plastic ball 41 is made of plastic, it will not scratch the cover plate 7, thus ensuring the aesthetic appearance of the cover plate 7. When installing or removing the base 1, simply open the cover plate 7 towards the handle 3 and rotate it at an angle. The plastic ball 41 moves into the mounting seat 8, and the first spring 42 is compressed and contracted. At this time, the cover plate 7 is the opening device. The pressing mechanism 4 is pre-embedded in the limiting seat 2 through the mounting seat 8, which can effectively reduce the total height of the handle and is suitable for installation in narrow spaces.

[0029] The decorative outer ring 5 and the base 1 are designed as separate structures. By ensuring that the decorative outer ring 5, cover plate 7, and handle 3 are made of the same material, a consistent surface appearance can be achieved. Since the decorative outer ring 5 and cover plate 7 conceal the base 1, the base 1 and its internal parts can be made of different materials than the parts related to the appearance. For cost considerations, the base 1 can be made of aluminum alloy casting or zinc alloy casting. The decorative outer ring 5, cover plate 7, and handle 3 are all made of wrought aluminum alloy, machined using a machining process. Wrought aluminum alloy can be surface treated using an oxidation process. Compared to existing technologies, while also considering production costs, this separate structural design allows for a consistent handle appearance through an oxidation surface treatment process, resulting in a better texture and higher wear resistance.

[0030] In a preferred embodiment, see [reference] Figure 2 , 7 The base 1 has a first receiving cavity 11 and several second receiving cavities 12 communicating with the first receiving cavity 11. The positioning mechanism 6 includes a transmission gear 61, a steel ball 62, and a second spring 63. The transmission gear 61 is rotatably disposed in the first receiving cavity 11. One steel ball 62 is correspondingly installed in one of the second receiving cavities 12. One end of the second spring 63 abuts against the steel ball 62, and the other end abuts against the second receiving cavity 12 to press the steel ball 62 against the transmission gear 61. A limiting seat 2 is disposed on the transmission gear 61. By rotating the handle 3, the transmission gear 61 is driven to rotate. When the teeth of the transmission gear 61 press against the steel ball 62, the second spring 63 is compressed and contracts. When the tooth groove of the transmission gear 61 faces the steel ball 62, the steel ball 62 is inserted into the tooth groove under the elastic force of the second spring 63 to lock the position of the transmission gear 61, thereby locking the limiting seat 2 and the handle 3. Furthermore, the collision between the tooth groove of the transmission gear 61 and the steel ball 62 can produce a mechanical sound to serve as a reminder.

[0031] Furthermore, there are two second receiving cavities 12, and the two second receiving cavities 12 are arranged symmetrically at 180°, so that the transmission gear 61 is subjected to uniform force; a first short post 13 is provided in the second receiving cavity 12, and a second spring 63 is sleeved on the first short post 13. The first short post 13 has a positioning function, which improves the stability of the installation of the second spring 63 and prevents the second spring 63 from falling out of the second receiving cavity 12.

[0032] Specifically, the outer circumference of the transmission gear 61 is provided with multiple evenly distributed tooth grooves, which can lock the handle 3 at the positions of 0°, 90°, 180° and 270°. On the other hand, when the user rotates the handle 3, the steel ball 62 can collide with multiple tooth grooves in sequence to produce multiple mechanical sounds, which can enhance the user's experience when operating the handle.

[0033] In a preferred embodiment, the transmission gear 61 is provided with a first shaft portion 611 extending toward the limiting seat 2. The first shaft portion 611 is provided with at least one first recess 612. The limiting seat 2 is provided with a first protrusion 21 that matches the first recess 612. The first shaft portion 611 is connected to the limiting seat 2 by screws. By cooperating with the first recess 612 and the first protrusion 21, it can be ensured that the transmission gear 61 and the limiting seat 2 rotate synchronously.

[0034] In another embodiment, the recess can be provided on the limiting seat 2, and the protrusion can be provided on the first shaft 611, which can also ensure that the transmission gear 61 and the limiting seat 2 rotate synchronously.

[0035] In this embodiment, the preferred option is described in the reference section. Figure 6 , 7 The first shaft portion 611 is provided with a first recess 612 and four evenly distributed second protrusions 613; the limiting seat 2 is provided with a first protrusion 21 that matches the first recess 612 and four second recesses 25 that correspond one-to-one with the four second protrusions 613. Through the cooperation of the first recess 612 and the first protrusion 21, and the cooperation of the second protrusion 613 and the second recess 25, motion and a large torque can be transmitted, further ensuring the synchronicity of the rotation of the transmission gear 61 and the limiting seat 2.

[0036] In a preferred embodiment, see [reference] Figure 3 The base 1 is provided with a second shaft portion 14 that penetrates the cover plate 7. A washer 9 is provided between the second shaft portion 14 and the limiting seat 2. The washer 9 is rotatably connected to the first shaft portion 611. During assembly, the first shaft portion 611 is simply passed through the second shaft portion 14 and the washer 9 in sequence and then connected to the limiting seat 2, which is a simple operation.

[0037] In a preferred embodiment, see [reference] Figure 3 , 4 The outer wall of the base 1 is provided with several limiting blocks 15, and the decorative outer ring 5 has notches 51 that cooperate with the limiting blocks 15. In this embodiment, it is preferable to have two limiting blocks 15, which are located at the top and bottom of the base 1, respectively. When installing the base 1, the decorative outer ring 5 is fitted onto the outer wall of the base 1, and the two limiting blocks 15 are respectively located in the two notches 51. Then, the base 1 is fixed to the door and window profile with screws. Under the action of the limiting blocks 15, the decorative outer ring 5 is prevented from detaching from the base 1 when the cover plate 7 is opened.

[0038] Specifically, the height of the limiting block 15 (i.e. the length of the limiting block 15 extending outward) is smaller than the wall thickness of the decorative outer ring 5, which can achieve the effect of hiding the limiting block 15.

[0039] More specifically, see Figure 7The limiting block 15 is provided with an arc surface 151 for positioning the notch 51, and correspondingly, the notch 51 is an arc-shaped notch 51. The user's finger can act on the edge of the cover plate 7 through the arc-shaped notch 51, which is convenient for the user to open the cover plate 7.

[0040] In a preferred embodiment, see [reference] Figure 6 , 7 The base 1 has a boss 16 on the side near the cover plate 7, and the cover plate 7 has a groove 71 that matches the boss 16. The boss 16 and the groove 71 cooperate to limit the position of the cover plate 7 and prevent the cover plate 7 from deflecting when it is closed with the base 1.

[0041] In a preferred embodiment, see [reference] Figure 3 , 5 7. The handle 3 has a third receiving cavity 31, and the limiting seat 2 is located in the third receiving cavity 31 to further reduce the overall height of the handle. The limiting seat 2 has a pin 22, which is rotatably connected to the handle 3. The end of the handle 3 near the pin 22 has a bevel 32. The base 1 is installed on the door and window profile. The distance between the handle 3 and the door and window profile is short, which is not conducive to the user's direct operation of the handle 3. Therefore, the pin 22 is set so that the limiting seat 2 and the handle 3 are rotatably connected. During operation, the handle 3 is first swung upward at an angle to increase the distance between the handle 3 and the door and window profile, so as to facilitate the user's operation of the handle. By setting the bevel 32, positional interference between the handle 3 and the cover plate 7 is avoided, which would scratch the cover plate 7, thereby ensuring the aesthetic appearance of the cover plate 7.

[0042] Further, see Figure 3 The third receiving cavity 31 is provided with a mounting groove 33 corresponding to the position of the inclined surface 32. The limiting seat 2 is provided with a second short post 23, and a third spring 24 is sleeved on the second short post 23. One end of the third spring 24 abuts against the limiting seat 2, and the other end abuts against the mounting groove 33. The second short post 23 plays a positioning role for the third spring 24. When the handle 3 is operated, the third spring 24 is in a compressed state; when not operated, the third spring 24 abuts against one end of the mounting groove 33 due to its elasticity. With the cooperation of the limiting seat 2 and the third receiving cavity 31, the handle 3 is kept in a state parallel to the base 1, that is, the total height of the handle is low when not operated.

[0043] Furthermore, the third receiving cavity 31 is provided with a relief groove 34 corresponding to the position of the mounting base 8, and the mounting base 8 extends into the relief groove 34. In order to ensure that the first spring 42 has a sufficiently long length to provide elastic force to press the plastic ball 41 firmly onto the cover plate 7, the third receiving cavity 31 is provided with a relief groove 34, and the mounting base 8 extends into the relief groove 34 to increase the height of the mounting base 8, while further reducing the overall height of the handle.

[0044] It is understood that those skilled in the art can make equivalent substitutions or changes to the technical solution and inventive concept of the present invention, and all such changes or substitutions should fall within the protection scope of the present invention.

Claims

1. A door and window handle, characterized in that, The device includes a base, a limiting seat, a handle, a pressing mechanism, and a decorative outer ring. The base has a positioning mechanism, and the limiting seat is mounted on the positioning mechanism. The positioning mechanism is used to lock the limiting seat on the base. The handle is rotatably mounted on the limiting seat. The base has a detachable cover plate on the side near the handle. The limiting seat has a mounting seat. The pressing mechanism includes a plastic ball slidably connected to the mounting seat and a first spring sleeved in the mounting seat. One end of the first spring abuts against the plastic ball to press the plastic ball against the cover plate. The decorative outer ring is sleeved on the outer wall of the base, and one side of the decorative outer ring abuts against the cover plate. In use, first lift the handle upwards at an angle, then rotate the handle. The handle drives the limit switch to rotate, and under the action of the positioning mechanism, the position of the limit seat on the base is locked. During the rotation of the limit seat, the pressing mechanism rotates accordingly. Under the action of the first spring, the plastic ball rolls along the surface of the cover plate, ensuring that the cover plate is always pressed against the base. When installing or removing the base, simply open the cover plate towards the handle and rotate it at an angle. The plastic ball moves into the mounting base, and the first spring is compressed and contracted. At this time, the cover plate is the opening device. The outer wall of the base is provided with several limiting blocks, and the decorative outer ring has a notch that matches the limiting blocks; the height of the limiting block is smaller than the wall thickness of the decorative outer ring, which can hide the limiting block; and the user's finger can act on the edge of the cover plate through the notch, which is convenient for the user to open the cover plate. The base has a boss on the side near the cover plate, and the cover plate has a groove that matches the boss. The handle is provided with a third receiving cavity, and a limiting seat is located in the third receiving cavity. A pin is provided on the limiting seat, and the pin is rotatably connected to the handle. The end of the handle near the pin is provided with an inclined surface. The third receiving cavity is provided with a mounting groove corresponding to the inclined surface position. The limiting seat is provided with a second short column, and a third spring is sleeved on the second short column. One end of the third spring abuts against the limiting seat, and the other end abuts against the mounting groove. The third receiving cavity is provided with a clearance groove corresponding to the position of the mounting seat, and the mounting seat extends into the clearance groove.

2. The door and window handle according to claim 1, characterized in that, The base is provided with a first receiving cavity and several second receiving cavities communicating with the first receiving cavity. The positioning mechanism includes a transmission gear, a steel ball and a second spring. The transmission gear is rotatably disposed in the first receiving cavity. One steel ball is installed in one of the second receiving cavities. One end of the second spring abuts against the steel ball and the other end abuts against the second receiving cavity to press the steel ball against the transmission gear. A limiting seat is disposed on the transmission gear.

3. The door and window handle according to claim 2, characterized in that, There are two second receiving cavities, and the two second receiving cavities are arranged symmetrically at 180°; a first short column is provided in the second receiving cavity, and a second spring is sleeved on the first short column.

4. The door and window handle according to claim 2, characterized in that, The transmission gear has a first shaft portion extending toward the limiting seat. The first shaft portion has at least one first recess. The limiting seat has a first protrusion that matches the first recess. The first shaft portion is connected to the limiting seat by screws.

5. The door and window handle according to claim 4, characterized in that, The base is provided with a second shaft portion that penetrates the cover plate, and a washer is provided between the second shaft portion and the limiting seat. The washer is rotatably connected to the first shaft portion.

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