Window handle with square shaft adjustable in extension length and not easy to pull out

Abstract

A window handle with a square shaft capable of adjusting the extension length and not prone to being pulled out comprises a handle body, a rivet joint, a base and the square shaft which are matched with one another, reference scale marks with different extension lengths are arranged on the square shaft, and a user manually pushes and pulls the square shaft according to the thickness of a sectional material in an actual use occasion. The square shaft and the handle can be locked by aligning the reference scale mark with the plane of the base, so that the required extension length of the square shaft is obtained, and the length of the square shaft is adjusted. According to the window handle with the square shaft capable of adjusting the extension length and not prone to being pulled out, a limiting hole in the lower end of the rivet joint is opposite to a limiting concave part of the square shaft, and a limiting column and a second spring which are matched with each other are arranged in a third limiting hole of the rivet joint; a limiting column is forced to be pushed through a second spring to enable the tail end of the limiting column to enter a limiting concave part, and in the process that the square shaft is pulled outwards, the protruding part at the tail end of the limiting column is matched with a protrusion at the left end of the limiting concave part, so that the square shaft can be pulled out of the rivet joint only by needing the pulling force larger than 100 N.

Description

Technical Field

[0001] The utility model relates to a window handle with a square shaft whose extension length can be adjusted and which is not easy to be pulled out. Background Art

[0002] The square shafts of window handles sold on the market are directly pressed into the handles, and the extension length is fixed. The long shaft extension cannot be adjusted according to the thickness of the window profile in the actual use occasion. This means that when purchasing handles, users need to first measure the thickness of the window profile and purchase window handles with the corresponding extension length for installation. This requires sellers to stockpile a large amount of inventory of different specifications in order to quickly meet the different needs of different users.

[0003] A window handle with adjustable square shaft extension length can effectively solve this type of problem. The window handle has a variety of adjustable square shaft lengths and can adapt to the thickness of various window profiles.

[0004] However, there are two problems with the window handles with adjustable square shaft extension length on the market. The first is that the square shaft cannot be pulled out at all, and it is impossible to replace square shafts of different specifications, which will limit the adjustable length of the square shaft and thus limit the range of applicable profiles of the handle. The second is that the square shaft can be easily pulled out, and the pulling force is less than 100N, which will cause the handle to fail the test of European standard BS EN13126-3, resulting in increased insurance costs for users. Utility Model Content

[0005] The utility model provides a window handle with a square shaft whose extension length can be adjusted and which is not easy to be pulled out.

[0006] The technical solution adopted by the utility model to solve the above technical problems is:

[0007] A window handle with an adjustable extension length of a square shaft and which is not easily pulled out, comprising a handle, a rivet joint, a pin shaft, a base and a square shaft which cooperate with each other, wherein the base is provided with a rivet hole, one end of the rivet joint is riveted to the rivet hole of the base, and the other end of the rivet joint is sleeved in a hollow columnar body inside the handle, and a first connecting hole is provided on the upper end side wall of the rivet joint, the pin shaft will pass through the first connecting hole, and connect the rivet joint and the second connecting hole of the handle in series to prevent the rivet joint from being pulled out during use, one end of the square shaft is inserted into the rivet joint, and the square shaft A plurality of accommodating holes and reference scale lines are arranged on the upper surface, a first spring is arranged in the accommodating hole, a steel ball is arranged on the top of the first spring, the bottom of the steel ball abuts against the first spring, the top of the steel ball abuts against the positioning hole of the rivet joint, a limiting hole is arranged on the lower side wall of the lower end of the rivet joint, N positioning holes are arranged on the upper side wall of the lower end, a limiting column is arranged in the limiting hole, a second spring is arranged inside the limiting column, the second spring is in a compressed state, the second spring cooperates with the limiting column, and a limiting recess is arranged on the lower side wall of one end of the square shaft inserted into the rivet joint.

[0008] Preferably, screw holes are provided on both sides of the rivet hole, and the base is fixed to the window profile by means of screws through the screw holes.

[0009] Preferably, the side wall of the handle is provided with a second connecting hole, the rivet head is provided with a first connecting hole opposite to the second connecting hole, the rivet head is a hollow columnar body, and the rivet head fixes the first connecting hole and the second connecting hole in the handle through a pin.

[0010] Preferably, there are N positioning holes and N-1 receiving holes.

[0011] Preferably, there are N-1 reference scale lines.

[0012] Preferably, the limiting hole is provided with a step.

[0013] Preferably, the end of the limiting column is provided with an outwardly protruding annular body which cooperates with the step of the limiting hole.

[0014] Compared with the prior art, the utility model provides a window handle with an adjustable extension length of a square shaft and is not easy to be pulled out. The square shaft is fixed by pushing a steel ball through a first spring arranged on the square shaft, so that the steel ball is clamped in a positioning hole arranged in the handle. The square shaft is provided with reference scales of different extension lengths. The user manually pushes and pulls the square shaft according to the thickness of the profile in the actual use occasion, so that the reference scale is flush with the base plane to lock the square shaft and the handle, thereby obtaining the required extension length of the square shaft and realizing the adjustment of the length of the square shaft. The limiting hole at the lower end of the rivet joint is opposite to the limiting concave portion of the square shaft, and a mutually matching limiting column and a second spring are arranged in the limiting hole of the rivet joint. The limiting column is forced to be pushed by the second spring so that the end of the limiting column enters the limiting concave portion of the square shaft. When the square shaft is pulled outward, the end protruding part of the limiting column cooperates with the left end protrusion of the limiting concave portion, so that a pulling force greater than 100N is required to pull the square shaft out of the rivet joint. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The utility model is a three-dimensional schematic diagram of a window handle with a square shaft that can adjust the extension length and is not easy to be pulled out.

[0016] Figure 2 This is the first exploded view of a window handle of the utility model, which has a square shaft with adjustable extension length and is not easy to be pulled out.

[0017] Figure 3 This is a second exploded view of a window handle of the utility model, which has a square shaft with adjustable extension length and is not easy to be pulled out.

[0018] Figure 4 The utility model is a cross-sectional view of a window handle with a square shaft that can adjust the extension length and is not easy to be pulled out. DETAILED DESCRIPTION

[0019] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0020] like Figures 1 to 4 As shown, a window handle with an adjustable extension length of a square shaft and which is not easily pulled out comprises a handle 1, a rivet head 2, a base 3 and a square shaft 4 that cooperate with each other. A rivet hole 31 is provided on the base 3, screw holes are provided on both sides of the rivet hole 31, and the base 3 is fixed to the window by means of screws 9 through the screw holes.

[0021] One end of the rivet head 2 is riveted to the rivet hole 31 of the base 3, and the other end of the rivet head 2 is sleeved in the hollow columnar body inside the handle 1. The side wall of the handle 1 is provided with a second connecting hole 11, and the rivet head 2 is provided with a first connecting hole 21 opposite to the second connecting hole 11. The rivet head 2 is an internally hollow columnar body, and the upper end side wall of the rivet head 2 is provided with a row of positioning holes 22, and the lower end side wall of the rivet head 2 is provided with a limiting hole 23, and the limiting hole 23 is provided with a step. A limiting column 8 is arranged in the limiting hole 23, and the end of the limiting column 8 is provided with an outwardly protruding annular body that cooperates with the step of the limiting hole 23, and a second spring 81 is arranged inside the limiting column 8, and the second spring 81 is in a compressed state, and the second spring 81 cooperates with the limiting column 8.

[0022] The riveted head 2 is fixed in the handle 1 by the second connecting hole 11 and the first connecting hole 21 through the pin 5. One end of the square shaft 4 is inserted into the riveted head 2. The square shaft 4 is provided with a plurality of receiving holes 41 and reference scale lines 42. The receiving hole 41 is provided with a first spring 7. The top of the first spring 7 is provided with a steel ball 6. The bottom of the steel ball 6 abuts against the first spring 7, and the top of the steel ball 6 abuts against the positioning hole 22.

[0023] In this embodiment, there are N positioning holes 22 , N−1 receiving holes 41 , and N−1 reference scale lines 42 .

[0024] When the extension length of the square shaft 4 needs to be adjusted, the square shaft 4 is pulled outward or pushed inward. During the movement of the square shaft 4, the bottom of the positioning hole 22 squeezes the steel ball 6 and forces the first spring 7 to compress toward the bottom of the receiving hole 41. After the first spring 7 is compressed, the square shaft 4 can move. When the square shaft 4 extends to a suitable length, the reference scale line 42 of the square shaft 4 will be flush with the bottom surface of the base 3. At this time, the first spring 7 recovers its deformation and forces the steel ball 6 to clamp the bottom of the positioning hole 22 to lock the square shaft 4.

[0025] A limiting recess 43 is provided on the lower side wall of one end of the square shaft 4 inserted into the riveting head 2. When the position of the limiting recess 43 is opposite to the limiting hole 23, the second spring 81 forces the limiting column 8 to push the end of the limiting column 8 out of the limiting hole 23 and into the limiting recess 43. At this time, the annular body of the limiting column 8 abuts against the step of the limiting hole 23. When the square shaft 4 is pulled out, the protruding end of the limiting column 8 cooperates with the left end of the limiting recess 43 to prevent the square shaft 4 from being pulled out of the riveting head 2 with a pulling force less than 100N.

[0026] The utility model provides a window handle with an adjustable extension length of a square shaft which is not easily pulled out. The limiting hole 23 at the lower end of the rivet head 2 is opposite to the limiting recess 41 of the square shaft 4. A limiting column 8 and a second spring 81 that cooperate with each other are arranged in the limiting hole 23 of the rivet head 2. The limiting column 8 is pushed by the second spring 81 so that the end of the limiting column 8 enters the limiting recess 43. When the square shaft 4 is pulled outward, the end protrusion of the limiting column 8 cooperates with the left end protrusion of the limiting recess 43 to prevent the square shaft 4 from being pulled out of the rivet head 2 with a pulling force less than 100N.

[0027] Finally, it should be noted that the above embodiments only illustrate the technical solutions of the present invention, rather than limiting it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A window handle with an adjustable extension length of a square shaft and which is not easily pulled out, comprising a handle (1), a rivet head (2), a base (3) and a square shaft (4) which cooperate with each other, wherein the base (3) is provided with a rivet hole (31), one end of the rivet head (2) is riveted to the rivet hole (31) of the base (3), the other end of the rivet head (2) is sleeved in a hollow columnar body inside the handle (1), a row of positioning holes (22) is provided on the upper side wall of the rivet head (2), one end of the square shaft (4) is inserted into the rivet head (2), a plurality of accommodating holes (41) and reference scale lines (42) are provided on the square shaft (4), a first spring (7) is provided in the accommodating hole (41), a steel ball (6) is provided on the top of the first spring (7), the bottom of the steel ball (6) abuts against the first spring (7), and the top of the steel ball (6) abuts against the positioning hole (22), It is characterized in that A limiting hole (23) is provided on the lower side wall of the rivet joint (2), a limiting column (8) is provided in the limiting hole (23), a second spring (81) is provided inside the limiting column (8), the second spring (81) is in a compressed state, the second spring (81) and the limiting column (8) cooperate with each other, and a limiting recess (43) is provided on the lower side wall of one end of the square shaft (4) inserted into the rivet joint (2).

2. A window handle with an adjustable extension length of a square shaft and not easily pulled out according to claim 1, It is characterized in that Screw holes are arranged on both sides of the riveting hole (31), and the base (3) is fixed on the window by means of screws (9) through the screw holes.

3. A window handle with an adjustable extension length of a square shaft and not easily pulled out according to claim 1, It is characterized in that The side wall of the handle (1) is provided with a second connection hole (11), the rivet head (2) is provided with a first connection hole (21) opposite to the second connection hole (11), the rivet head (2) is a columnar body with a hollow interior, and the rivet head (2) is used to fix the second connection hole (11) and the first connection hole (21) in the handle (1) by means of a pin shaft (5).

4. A window handle with an adjustable extension length of a square shaft and not easily pulled out according to claim 1, It is characterized in that There are N positioning holes (22) and N-1 accommodating holes (41).

5. A window handle with an adjustable extension length of a square shaft and not easily pulled out according to claim 1, It is characterized in that There are N-1 reference scale lines (42).

6. A window handle with an adjustable extension length of a square shaft and not easily pulled out according to claim 1, It is characterized in that The limiting hole (23) is provided with a step.

7. A window handle with an adjustable extension length of a square shaft and not easily pulled out according to claim 6, It is characterized in that The end of the limiting column (8) is provided with an outwardly protruding annular body which cooperates with the step of the limiting hole (23).

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