Square shaft handle

Abstract

The utility model discloses a square shaft handle which comprises a handle body, a base, a check ring, a square shaft and two marble screws, a fixing groove is formed in the handle body, the base is inserted into the fixing groove, and the square shaft penetrates through the base and then is inserted into the fixing groove; according to the lever handle, the base, the handle body, the square shaft and the check ring are arranged, the check ring is used for clamping and clamping the clamping groove of the square shaft, limiting between the base and the square shaft is achieved, then the base and the square shaft are inserted into the fixing groove of the handle, connection transmission between the square shaft and the handle is achieved, the overall structure is simple and practical, and operation is easy, convenient and rapid; meanwhile, a plurality of limiting grooves and two marble screws are arranged, steel balls of the marble screws abut against the limiting grooves, rotation of the square shaft is limited in a conventional state, and the square shaft can only rotate by a set angle when rotating forcibly.

Description

Technical Field

[0001] The utility model relates to the technical field of building door and window hardware, in particular to a square shaft handle. Background Art

[0002] The handle is an essential operating component and visible component in the door and window system. In addition to the invisible components, the handle is an extremely important component of the door and window system. It not only has to realize the required functions, but more importantly, it is the component that customers see most directly. Existing handles are usually divided into handles with base and handles without base. A handle with base means that the base part is exposed to the outside, while a handle without base means that the base part is not exposed to the outside but is located inside the handle of the handle. Therefore, a handle without base can give customers a more atmospheric feeling.

[0003] In order to realize this function, most of the baseless handles on the market will cause the entire handle structure to be very complicated. In order to ensure that the handle is rotated into place every time, the prior art usually sets an angle limit with a spring steel ball structure in the base. However, since the structure of the baseless handle is limited by the volume, setting the angle limit structure in the base of the baseless handle will make the structure of the base of the baseless handle very complicated, thereby making the assembly of the base of the baseless handle troublesome, costly and difficult to assemble, resulting in extremely high assembly costs of the handle, which is not conducive to market development. The publication number is CN215717821U, which discloses a baseless handle, whose structure includes a handle, a square shaft fixing seat, a spring, a convex gear piece, a concave gear piece, a static fixing seat, a friction-reducing pad and a square shaft. The square shaft is a stepped shaft, including a rivet column, a first matching portion, a second matching portion and a third matching portion; the friction-reducing pad, the static fixing seat, the concave gear piece, the convex gear piece, the spring and the square shaft fixing seat are sequentially sleeved on the square shaft from bottom to top, the static fixing seat is located at the second matching portion of the square shaft, a plurality of connecting columns are evenly distributed on the top of the static fixing seat, the connecting columns are clamped in the connecting column holes of the concave gear piece, and positioning holes are also evenly distributed on the concave gear piece, the positioning holes are matched with arc-shaped positioning protrusions evenly distributed on the bottom of the convex gear piece, the concave gear piece is clamped in the first matching portion of the square shaft, and the square shaft fixing seat is respectively matched with the first matching portion and the rivet column. When the above-mentioned baseless handle is rotated, the spherical positioning protrusion on the convex gear piece will leave the positioning hole. The convex gear piece is supported by a spring, so a gear sense will be generated when it is rotated. The gear sense is used to enable the handle to rotate 90° accurately, while achieving a good performance and feel. It has the characteristics of a clear gear sense at a 90° rotation angle, so that users have a good operating experience. The handle has many parts and a complex overall structure. It is also complicated and troublesome to assemble, which is time-consuming and labor-intensive. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a square shaft handle that is practical and easy to assemble.

[0005] To achieve the above object, the utility model provides a solution as follows: a square shaft handle, comprising a handle, a base, a retaining ring, a square shaft, and two ball screws, wherein the handle is provided with a fixing groove, wherein the fixing groove is used for inserting the base, and the square shaft is inserted into the fixing groove after passing through the base;

[0006] The outer wall of the base is provided with two mounting holes, the ball screws are arranged in the mounting holes, the outer wall of the square shaft is provided with a plurality of limit grooves, the two mounting holes correspond to two of the limit grooves respectively, and when the square shaft passes through the base, the steel ball of the ball screw hits the limit groove to limit the rotation of the square shaft;

[0007] A retaining groove is provided on the outer side of the square shaft, and the retaining groove is located on the upper side of the limiting groove. The retaining ring clamps the retaining groove to limit the square shaft from exiting the base.

[0008] The beneficial effects of the utility model are as follows: easy assembly, the handle is provided with a base, a handle, a square shaft, and a retaining ring, and the retaining ring is used to clamp the clamping groove of the square shaft to achieve the limitation between the base and the square shaft, and then the base and the square shaft are inserted into the fixing groove of the handle to achieve the connection transmission between the square shaft and the handle. The overall structure is simple and practical, and the operation is simple and quick. At the same time, by providing a plurality of limiting grooves and two ball screws, the steel balls of the ball screws are used to contact the limiting grooves, so that the rotation of the square shaft is limited under normal conditions, and when it is rotated with force, the square shaft can only rotate to a set angle.

[0009] Furthermore, a limiting flange is provided in the middle of the square shaft, and the limiting flange divides the square shaft into a first connecting shaft and a second connecting shaft, wherein the first connecting shaft is used to pass through the base, and the limiting flange is used to limit the second connecting shaft from entering the base.

[0010] Furthermore, a rotating portion is formed on the bottom side of the first connecting shaft, the rotating portion is in a cylindrical structure, and a plurality of the limiting grooves are formed on the outer side wall of the rotating portion.

[0011] Furthermore, the base is provided with a through hole, the through hole vertically penetrates the base, the rotating part rotates in the through hole, wherein the two mounting holes are respectively connected to the through holes. After the utility model adopts the above structure, it is convenient for the rotating square shaft to rotate.

[0012] Furthermore, a mounting groove is provided in the fixing groove, and the mounting groove is used for inserting and fixing the first connecting shaft, wherein the cross-sectional shape of the mounting groove is the same as the cross-sectional shape of the first connecting shaft. After the utility model adopts the above structure, the connection transmission between the square shaft and the handle is realized.

[0013] Furthermore, a first connecting hole is opened on the side wall of the handle, the first connecting hole is connected to the mounting slot, a second connecting hole is opened on the outer side wall of the first connecting shaft, the second connecting hole is located on the upper side of the positioning slot, and the first connecting shaft is fixed in the mounting slot by passing a first screw through the first connecting hole and the second connecting hole in sequence.

[0014] Furthermore, two screw holes are formed on the top of the base, and second screws are arranged in the screw holes, and the second screws are used to fix the base on the door and window profile. After the utility model adopts the above structure, the handle can be installed on the door and window profile. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The utility model is installed on the structure of the door and window profile Figure 1 .

[0016] Figure 2 The utility model is installed on the structure of the door and window profile Figure 2 .

[0017] Figure 3 It is an exploded view of the utility model.

[0018] Figure 4 It is a top view of the utility model.

[0019] Figure 5 for Figure 4 AA section view in.

[0020] Figure 6 for Figure 4 BB section view in.

[0021] Among them, 1 is a handle, 11 is a fixing slot, 12 is a mounting slot, 13 is a first connecting hole, 14 is a first screw, 2 is a base, 21 is a mounting hole, 22 is a ball screw, 23 is a through hole, 24 is a screw hole, 25 is a second screw, 3 is a retaining ring, 4 is a square shaft, 41 is a limiting flange, 42 is a first connecting shaft, 421 is a limiting slot, 422 is a locking slot, 423 is a second connecting hole, 424 is a rotating part, 43 is a second connecting shaft, and 5 is a door and window profile. DETAILED DESCRIPTION

[0022] The technical solution of the utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0023] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are 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, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0024] See attached Figure 1 To Attachment Figure 6 As shown, a square shaft handle includes a handle 1, a base 2, a retaining ring 3, a square shaft 4, and two ball screws 22. The handle 1 is provided with a fixing groove 11 for inserting the base 2. The square shaft 4 passes through the base 2 and is inserted into the fixing groove 11.

[0025] Among them, two mounting holes 21 are opened on the outer wall of the base 2, and a ball screw 22 is arranged in the mounting hole 21. A plurality of limit grooves 421 are opened on the outer wall of the square shaft 4. The two mounting holes 21 correspond to two of the limit grooves 421 respectively. When the square shaft 4 passes through the base 2, the steel ball of the ball screw 22 hits the limit groove 421 to limit the rotation of the square shaft 4.

[0026] A locking groove 422 is formed on the outer side of the square shaft 4 , and the locking groove 422 is located on the upper side of the limiting groove 421 . The retaining ring 3 clamps the locking groove 422 to limit the square shaft 4 from withdrawing from the base 2 .

[0027] In this embodiment, the number of the limiting grooves 421 is four, and the four limiting grooves 421 are arranged in a ring at equal intervals.

[0028] In this embodiment, a limiting flange 41 is provided in the middle of the square shaft 4, and the limiting flange 41 divides the square shaft 4 into a first connecting shaft 42 and a second connecting shaft 43. The first connecting shaft 42 is used to pass through the base 2, and the limiting flange 41 is used to limit the second connecting shaft 43 from entering the base 2.

[0029] In this embodiment, a rotating portion 424 is formed on the bottom side of the first connecting shaft 42 . The rotating portion 424 is a cylindrical structure, and a plurality of limiting grooves 421 are formed on the outer side wall of the rotating portion 424 .

[0030] In this embodiment, the base 2 is provided with a through hole 23 , which vertically penetrates the base 2 , and the rotating portion 424 rotates in the through hole 23 , wherein the two mounting holes 21 are respectively connected to the through holes 23 .

[0031] In this embodiment, a mounting groove 12 is formed in the fixing groove 11 , and the mounting groove 12 is used for the first connecting shaft 42 to be inserted and fixed, wherein the cross-sectional shape of the mounting groove 12 is the same as the cross-sectional shape of the first connecting shaft 42 .

[0032] In this embodiment, a first connecting hole 13 is opened on the side wall of the handle 1, and the first connecting hole 13 is connected to the mounting slot 12. A second connecting hole 423 is opened on the outer wall of the first connecting shaft 42, and the second connecting hole 423 is located on the upper side of the locking slot 422. The first connecting shaft 42 is fixed in the mounting slot 12 by passing the first screw 14 through the first connecting hole 13 and the second connecting hole 423 in sequence.

[0033] In this embodiment, two screw holes 24 are opened on the top of the base 2 , and second screws 25 are arranged in the screw holes 24 . The second screws 25 are used to install and fix the base 2 on the door and window profile 5 .

[0034] In this embodiment, the specific assembly process is as follows: first, the first connecting shaft 42 of the square shaft 4 is passed through the through hole 23 of the base 2, and then the rotating part 424 is rotated in the through hole 23, at which time the locking groove 422 extends out of the base 2, and then the retaining ring 3 is inserted into the locking groove 422 to clamp the locking groove 422, so that the square shaft 4 can be restricted from moving up and down in the base 2 under the upper and lower blocking action of the retaining ring 3 and the limiting flange 41, and can only rotate;

[0035] Then screw the two ball screws 22 into the two mounting holes 21 respectively until the steel balls of the ball screws 22 enter into the corresponding limiting grooves 421 to limit the rotation of the square shaft 4;

[0036] At this time, first place the base 2 on the door and window profile 5, then pass the second screw 25 through the screw hole 24, connect the door and window profile 5, and fix the base 2 on the door and window profile 5, then install the handle 1, cover the fixing groove 11 of the handle 1 on the base 2, make the base 2 completely enter the fixing groove 11, and insert the first connecting shaft 42 into the installation groove 12, finally, pass the first screw 14 through the first connecting hole 13 and the second connecting hole 423 in turn to fix the first connecting shaft 42 in the installation groove 12, and complete the installation of the entire handle. The overall installation is simple and quick.

[0037] When in use, one only needs to turn the handle 1 with force to drive the square shaft 4 to rotate, so that the steel ball of the ball screw 22 exits the limiting groove 421, and then rotates 90° to make the steel ball of the ball screw 22 enter the next limiting groove 421, so that the handle 1 can only rotate 90°.

[0038] The embodiments described above are only preferred embodiments of the present invention and do not limit the present invention in any form. Any technician familiar with the field can use the above disclosed technical content to make more possible changes and modifications to the technical solution of the present invention without departing from the scope of the technical solution of the present invention, or modify it into an equivalent embodiment of equivalent changes. Therefore, all equivalent and equivalent changes made according to the idea of ​​the present invention without departing from the content of the technical solution of the present invention should be included in the protection scope of the present invention.

Claims

1. A square shaft handle, comprising a handle (1), a base (2), a retaining ring (3), a square shaft (4), and two ball screws (22), characterized in that: The handle (1) is provided with a fixing groove (11), the fixing groove (11) is used for the base (2) to be inserted, and the square shaft (4) passes through the base (2) and is then inserted into the fixing groove (11); The outer wall of the base (2) is provided with two mounting holes (21), the mounting holes (21) are provided with the ball screws (22), the outer wall of the square shaft (4) is provided with a plurality of limit grooves (421), the two mounting holes (21) respectively correspond to two of the limit grooves (421), and when the square shaft (4) passes through the base (2), the steel balls of the ball screws (22) abut against the limit grooves (421) to limit the rotation of the square shaft (4); A locking groove (422) is formed on the outer side of the square shaft (4), the locking groove (422) is located on the upper side of the limiting groove (421), and the retaining ring (3) clamps the locking groove (422) to limit the square shaft (4) from exiting the base (2).

2. A square shaft handle according to claim 1, characterized in that: A limiting flange (41) is provided in the middle of the square shaft (4), and the limiting flange (41) divides the square shaft (4) into a first connecting shaft (42) and a second connecting shaft (43), wherein the first connecting shaft (42) is used to pass through the base (2), and the limiting flange (41) is used to limit the second connecting shaft (43) from entering the base (2).

3. A square shaft handle according to claim 2, characterized in that: A rotating portion (424) is formed on the bottom side of the first connecting shaft (42), the rotating portion (424) is in a cylindrical structure, and a plurality of limiting grooves (421) are formed on the outer side wall of the rotating portion (424).

4. The square shaft handle according to claim 3, characterized in that: The base (2) is provided with a through hole (23), the through hole (23) vertically passing through the base (2), the rotating portion (424) rotates in the through hole (23), and the two mounting holes (21) are respectively connected to the through holes (23).

5. The square shaft handle according to claim 4, characterized in that: The fixing groove (11) has a mounting groove (12) therein, and the mounting groove (12) is used for inserting and fixing the first connecting shaft (42), wherein the cross-sectional shape of the mounting groove (12) is the same as the cross-sectional shape of the first connecting shaft (42).

6. The square shaft handle according to claim 5, characterized in that: The side wall of the handle (1) is provided with a first connection hole (13), the first connection hole (13) being connected to the mounting slot (12), the outer side wall of the first connection shaft (42) is provided with a second connection hole (423), the second connection hole (423) being located on the upper side of the locking slot (422), and the first connection shaft (42) is fixed in the mounting slot (12) by a first screw (14) passing through the first connection hole (13) and the second connection hole (423) in sequence.

7. The square shaft handle according to claim 6, characterized in that: Two screw holes (24) are formed on the top of the base (2), and second screws (25) are arranged in the screw holes (24). The second screws (25) are used to install and fix the base (2) on the door and window profile (5).

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