Base-free window handle

Abstract

The utility model provides a base-free window handle, which belongs to the technical field of door and window handles, and comprises a window frame, a square shaft and a handle, a positioning plate and a limiting seat are arranged in the handle, a telescopic spring and a steel ball are arranged on one side of the positioning plate, a limiting plate is arranged in the handle, the handle is connected with a headless bolt, a shaft sleeve is arranged in the limiting seat, and the headless bolt is connected with the shaft sleeve. A clamping base is arranged in the handle and connected with a connecting rod, and the outer wall of the shaft sleeve is sleeved with a metal pad. The utility model has the beneficial effects that the product structure changes the traditional square shaft into the connecting rod, the shaft sleeve and the common square shaft, can effectively solve the problems of non-concentricity and difficulty in control of dimensional accuracy caused by punching of a cold forging machine, and effectively reduces the cost due to simple production and no need of post-processing treatment, and most importantly solves the problem of instability, and the product quality is improved. The problem of repeated disassembly and assembly is avoided, efficiency is improved, and a customer can replace the square shaft with the proper length at will according to the thicknesses of different window profiles.

Description

Technical Field

[0001] The utility model relates to the technical field of door and window handles, and in particular to a window handle without a base. Background Art

[0002] A window handle is a device installed on a window sash that serves both as an opening and closing device. When closing a window or door, the handle, along with other accessories, securely locks the window sash to the frame, ensuring a sealed, secure, and theft-proof door or window.

[0003] Existing door and window handles are usually composed of multiple parts such as handles, bases, guard plates, screws, etc., and the product uses a square shaft to drive the transmission box to open and close the window. However, this device has many installation steps, many parts, and the dimensional accuracy is difficult to control. After the product is assembled, the gap is unstable, and when the handle is rotated, it is either loose and the handle shakes; or it is tight and the rotation damping is too large and not smooth. In addition, when producing square shafts with the existing process, the dimensional tolerance of the square shaft cold forging machine is difficult to control, which has a huge impact on the overall assembly effect of the product. In addition, the products on the market have different profile thicknesses for each customer, which will result in different required lengths of the square shafts. Therefore, they cannot be stocked in large quantities during production and can only be produced according to orders, which is extremely restrictive. How to invent a baseless window handle to improve these problems has become an urgent problem to be solved by technicians in this field. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides a baseless window handle, aiming to improve the problems of multiple installation processes, many parts, difficult to control dimensional accuracy, and large size restrictions.

[0005] The utility model is achieved in this way:

[0006] The utility model provides a baseless window handle, comprising a window frame, a square shaft and a handle, wherein a positioning plate and a limit seat are provided inside the handle, a telescopic spring and a steel ball are provided on one side of the positioning plate, a limit plate is provided inside the handle, the handle is connected with a headless bolt, a shaft sleeve is provided inside the limit seat, a clamping seat is provided inside the handle, the clamping seat is connected with a connecting rod, and a metal pad is sleeved on the outer wall of the shaft sleeve.

[0007] Preferably, one end of the square shaft passes through the side wall of the window frame, a through hole is provided in the side wall of the window frame, the square shaft is located on the inner side of the positioning plate, the side of the positioning plate away from the window frame is fixedly connected to one end of the telescopic spring, the positioning plate is connected with a fixing bolt, and the other end of the telescopic spring is fixedly connected to the steel ball.

[0008] Preferably, the cross-section of the sleeve is convex, and a docking groove 1 corresponding to the square shaft is provided on the side wall of one end of the sleeve, and a docking groove 2 corresponding to the connecting rod is provided on the other end of the sleeve. The docking groove is connected to the outer wall of one end of the square shaft, and the docking groove 1 and the docking groove 2 are connected. A connecting bolt is provided inside the sleeve.

[0009] Preferably, a placement groove is provided on one side of the limit seat, and a circular hole and a mounting slot hole are provided on the inner wall of the placement groove. The cross-section of the circular hole is stepped. The side wall of the limit seat is fixedly connected with a limit ring. The limit ring is located on one side of the mounting slot hole. The limit ring is semi-circular. The outer diameter of the limit ring is smaller than the inner diameter of the through hole one. A socket is provided on the inner wall of the central axis of the placement groove. The cross-section of the socket is stepped. The inner wall of the placement groove is provided with a connecting groove threadedly connected to the fixing bolt.

[0010] Preferably, the jack is sleeved on the outside of the sleeve, the placement slot is fixedly connected to the positioning plate by fixing bolts and connecting slots, the inner wall of one end of the circular hole is slidingly connected to the steel ball, the inner diameter of the other end of the circular hole is smaller than the outer diameter of the steel ball, the limit seat is connected with a positioning bolt, and one end of the positioning bolt passes through the mounting slot hole and through hole 1.

[0011] Preferably, a limit plate is provided on one side of the holder, and the limit plate is located between the limit seat and the holder. The outer wall of the limit plate is provided with a limit groove 2, and the side wall of the limit plate is provided with a through hole 2, and the inner diameter of the through hole 2 is the same as the inner diameter of the end with the smaller diameter of the circular hole.

[0012] Preferably, the socket is arranged in a "T" shape, a groove corresponding to the second through hole is provided on one side of the socket, a limit block second is fixedly connected to the side wall of the socket and is engaged with the second limit groove, a limit groove one is provided on the outer wall of the socket, a slot corresponding to one end of the sleeve is provided on the side wall of one end of the socket, a fixing groove matching the connecting rod is provided on the side wall of the other end of the socket, a ball head groove is provided on the side wall of the socket, and a connecting groove is provided on one side of the socket.

[0013] Preferably, one end of the connecting rod is arranged in a square column shape, and the other end of the connecting rod is arranged in a cylindrical shape. A thread groove is provided at one end of the connecting rod, and the thread groove is threadedly connected to the connecting bolt.

[0014] Preferably, a connecting threaded hole is provided on the side wall of the handle, a headless bolt is threadedly connected to the connecting threaded hole, a slot adapted to the base is provided at one end of the handle, a limiting strip corresponding to the connecting groove is fixedly connected to the inner wall of the slot, and a limiting block corresponding to limiting groove one is provided inside the slot.

[0015] The beneficial effects of the utility model are:

[0016] The structure of this product splits the traditional square shaft into three parts and changes it to connecting rod + sleeve + ordinary square shaft, which can effectively solve the problems of eccentricity and difficult to control dimensional accuracy caused by cold forging machines, and because the production is simple and does not require post-processing, the cost is effectively reduced. The most important thing is to solve the pain point of unstable production, avoid the problem of repeated disassembly and assembly, and improve efficiency. In addition, the most important transmission square shaft of the square shaft structure after disassembly is changed to an ordinary square shaft form, and can be installed later, modularizing the product. Through the form of product base + square shaft, it also brings great convenience to on-site installation. The product base is all unified, and customers can freely replace the square shaft of suitable length according to the thickness of different window profiles; secondly, production can be directly mass-produced, and is no longer restricted by the length of the square shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 This is a schematic diagram of the overall structure of a baseless window handle provided by an embodiment of the utility model;

[0019] Figure 2 This is a schematic diagram of the overall exploded structure of a baseless window handle provided by an embodiment of the utility model;

[0020] Figure 3 This is a cross-sectional view of a baseless window handle structure provided by an embodiment of the present utility model;

[0021] Figure 4 This is a cross-sectional view of the longitudinal section structure of a window handle without a base provided by an embodiment of the utility model;

[0022] Figure 5 This is a schematic diagram of the front structure of a baseless window handle limit seat provided by an embodiment of the utility model;

[0023] Figure 6 This is a schematic diagram of the back structure of a baseless window handle limit seat provided by an embodiment of the utility model;

[0024] Figure 7 This is a schematic diagram of a baseless window handle limit plate and a holder structure provided by an embodiment of the utility model;

[0025] Figure 8This is a schematic diagram of a baseless window handle holder structure provided by an embodiment of the present utility model;

[0026] Figure 9 This is a schematic diagram of a baseless window handle slot structure provided by an embodiment of the present utility model;

[0027] Figure 10 This is a schematic diagram of a baseless window handle connecting rod, sleeve and square shaft structure provided by an embodiment of the utility model;

[0028] Figure 11 This is a schematic diagram of the back structure of a baseless window handle sleeve provided by an embodiment of the utility model;

[0029] Figure 12 This is a schematic diagram of the front structure of a baseless window handle sleeve provided by an embodiment of the utility model.

[0030] In the figure: 1. Window frame; 101. Through hole 1; 2. Square shaft; 3. Positioning bolt; 4. Handle; 401. Connecting threaded hole; 402. Slot; 403. Limit block 1; 404. Limiting strip; 5. Connecting bolt; 6. Positioning plate; 7. Bushing; 701. Docking slot 1; 702. Docking slot 2; 8. Metal washer; 9. Telescopic spring; 10. Steel ball; 11. Limiting seat; 1101. Round hole; 1102. Mounting slot; 1103. Insert Hole; 1104, placement slot; 1105, limiting ring; 1106, connecting slot; 12, limiting plate; 1201, limiting slot 2; 1202, through hole 2; 13, holder; 1301, slot; 1302, limiting block 2; 1303, limiting slot 1; 1304, ball head slot; 1305, groove; 1306, connecting slot; 1307, fixing slot; 14, connecting rod; 1401, threaded groove; 15, headless bolt; 16, fixing bolt. DETAILED DESCRIPTION

[0031] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] Example, refer to Figures 1-12A baseless window handle comprises a window frame 1, a square shaft 2 and a handle 4. A positioning plate 6 and a limit seat 11 are provided inside the handle 4. A telescopic spring 9 and a steel ball 10 are provided on one side of the positioning plate 6. A limit plate 12 is provided inside the handle 4. The handle 4 is connected with a headless bolt 15. A sleeve 7 is provided inside the limit seat 11. A clamping seat 13 is provided inside the handle 4. The clamping seat 13 is connected with a connecting rod 14. The outer wall of the sleeve 7 is sleeved with a metal pad 8.

[0033] Furthermore, one end of the square shaft 2 passes through the side wall of the window frame 1, and a through hole 101 is opened in the side wall of the window frame 1. The square shaft 2 is located on the inner side of the positioning plate 6. The side of the positioning plate 6 away from the window frame 1 is fixedly connected to one end of the telescopic spring 9. The positioning plate 6 is connected to a fixing bolt 16, and the other end of the telescopic spring 9 is fixedly connected to the steel ball 10.

[0034] The cross section of the sleeve 7 is in a convex shape. A docking groove 701 corresponding to the square shaft 2 is opened on the side wall of one end of the sleeve 7. A docking groove 702 corresponding to the connecting rod 14 is opened on the other end of the sleeve 7. The docking groove 701 is sleeved on the outer wall of one end of the square shaft 2. The docking groove 701 and the docking groove 702 are connected. A connecting bolt 5 is provided inside the sleeve 7.

[0035] A placement groove 1104 is provided on one side of the limiting seat 11. A circular hole 1101 and a mounting slot hole 1102 are provided on the inner wall of the placement groove 1104. The cross section of the circular hole 1101 is arranged in a stepped shape. A limiting ring 1105 is fixedly connected to the side wall of the limiting seat 11. The limiting ring 1105 is located on one side of the mounting slot hole 1102. The limiting ring 1105 is arranged in a semi-annular shape. The outer diameter of the limiting ring 1105 is smaller than the inner diameter of the through hole 101. A socket 1103 is provided on the inner wall of the central axis of the placement groove 1104. The cross section of the socket 1103 is arranged in a stepped shape. A connecting groove 1106 threadedly connected to the fixing bolt 16 is provided on the inner wall of the placement groove 1104.

[0036] The socket 1103 is sleeved on the outer side of the shaft sleeve 7, and the placement groove 1104 is fixedly connected to the positioning plate 6 through the fixing bolt 16 and the connecting groove 1106. The inner wall of one end of the circular hole 1101 is slidably connected to the steel ball 10. The inner diameter of the other end of the circular hole 1101 is smaller than the outer diameter of the steel ball 10. The limiting seat 11 is connected to the positioning bolt 3, and one end of the positioning bolt 3 passes through the mounting slot 1102 and the through hole 101;

[0037] A limiting plate 12 is provided on one side of the holder 13. The limiting plate 12 is located between the limiting seat 11 and the holder 13. A second limiting groove 1201 is defined on the outer wall of the limiting plate 12. A second through hole 1202 is defined on the side wall of the limiting plate 12. The inner diameter of the second through hole 1202 is the same as the inner diameter of the smaller end of the circular hole 1101.

[0038] One end of the connecting rod 14 is in the shape of a square column, and the other end of the connecting rod 14 is in the shape of a cylinder. A thread groove 1401 is provided at one end of the connecting rod 14 , and the thread groove 1401 is threadedly connected to the connecting bolt 5 .

[0039] It should be noted that: when installing the whole, first put the metal pad 8 on the outer wall of one end of the sleeve 7, then pass one end of the sleeve 7 through the socket 1103 and the limit plate 12, and then put the holder 13 on the outside of the sleeve 7 through the slot 1301, and make the limit groove 2 1201 and the limit block 2 1302 correspond to each other, so as to preliminarily limit the position of the limit plate 12, and make the through hole 2 1202 and the limit groove 1 1303 aligned, and then insert the connecting rod 14 into the corresponding fixing groove 1307, and finally insert one end of the connecting bolt 5 into the docking groove 1 701 is threadedly connected to the threaded groove 1401 inside the connecting rod 14, so as to complete the fixation of the connecting rod 14 and the sleeve 7, and one end of the connecting rod 14 is cylindrical and the other end is prismatic. In addition, the fixing groove 1307 provided in the base 13 is also adapted to the shape of the connecting rod 14, which can better ensure the stability of the connecting rod 14, and through the mutual plug-in limit, the stability during use can be effectively guaranteed to avoid the occurrence of shaking. At the same time, the metal pad 8 can increase the tightness of the connection between the sleeve 7 and the limit seat 11, while reducing wear and improving service life.

[0040] In addition, after completing the preliminary assembly, insert one end of the telescopic spring 9 with the steel ball 10 into the inside of the circular hole 1101, and install the positioning plate 6 through the fixing bolt 16 and threadedly connect it to the connecting groove 1106, so as to realize the installation of the positioning mechanism. When fixing the square shaft 2, first pass one end of the square shaft 2 through the positioning plate 6, and then tightly insert the square shaft 2 into the inner wall of the docking groove 701 on the inner side of the sleeve 7. In this way, the quick docking of the sleeve 7 and the square shaft 2 can be quickly completed. After completing the overall assembly of the entire base, insert the other end of the square shaft 2 into the window frame 1 profile to complete the connection of the square shaft 2 + sleeve 7 + connecting rod 14, thereby solving the problem of unstable installation and The problem of repeated disassembly and assembly is solved to improve efficiency. In addition, the most important thing about the square shaft 2 structure after disassembly is to change the transmission square shaft 2 into the form of an ordinary square shaft 2, which can realize subsequent installation and modularize the entire product. Through the form of product base + square shaft 2, it also brings great convenience to on-site installation. At this time, the side wall of one end of the positioning plate 6 and the limit seat 11 is in contact with the side wall of the window frame 1, and the limit ring 1105 is inserted into the inside of the through hole 101 during the socketing process to limit the limit seat 11, and at the same time facilitate quick docking, increase the installation speed of the subsequent positioning bolts 3, thereby improving the installation efficiency, so that the above-mentioned assembled overall accessories and the window frame 1 can be quickly fixed.

[0041] Reference Figure 7-Figure 9, further; the base 13 is set in a "T" shape, and a groove 1305 corresponding to the second through hole 1202 is opened on one side of the base 13, and a limit block 1302 is fixedly connected to the side wall of the base 13 and is mutually engaged with the limit groove 1201. The outer wall of the base 13 is provided with a limit groove 1303, and a slot 1301 corresponding to one end of the shaft sleeve 7 is opened on the side wall of one end of the base 13, and a fixing groove 1307 matching the connecting rod 14 is opened on the side wall of the other end of the base 13. A ball head groove 1304 is provided on the side wall of the holder 13, and a connecting groove 1306 is provided on one side of the holder 13; a connecting threaded hole 401 is provided on the side wall of the handle 4, and a headless bolt 15 is threadedly connected to the connecting threaded hole 401, and a slot 402 adapted to the holder 13 is provided at one end of the handle 4, and a limiting strip 404 corresponding to the connecting groove 1306 is fixedly connected to the inner wall of the slot 402, and a limiting block 403 corresponding to the limiting slot 1303 is provided inside the slot 402.

[0042] It should be noted that: after the above parts are fixed, the slot 402 is sleeved on the outer wall of the base 13, and the connection between the limit slot 1303 and the limit block 403 and the connection between the connecting slot 1306 and the limit strip 404 can effectively ensure the tightness of the connection between the handle 4 and the base 13. Through the mutual limiting connection, on the one hand, the connecting threaded hole 401 and the ball head slot 1304 can be quickly aligned, so that it is convenient for the headless bolt 15 to fix the handle 4 and the base 13 to each other. On the other hand, it can effectively reduce the shaking caused by wear after long-term use and ensure stability. In addition, one end of the headless bolt 15 is hemispherical. After the headless bolt 15 is threadedly connected to the connecting threaded hole 401, the hemispherical end of the headless bolt 15 is inserted into the inside of the ball head slot 1304, thereby completing the connection between the handle 4 and the base 1 3 is positioned, and the handle 4 can be rotated when in use, and the steel ball 10 is separated from the second through hole 1202 by driving the rotation of the limit plate 12, and the side wall of the limit plate 12 squeezes the steel ball 10, so that the telescopic spring 9 is compressed, thereby applying pressure to the positioning plate 6. At the same time, the elasticity of the telescopic spring 9 makes the steel ball 10 apply a force to the side wall of the limit plate 12, thereby positioning the rotated handle 4 to avoid it from shaking after rotation. Therefore, by modularizing the product, it brings great convenience to on-site installation, and the customer can replace the square shaft 2 of suitable length according to the thickness of different window profiles. Secondly, it can be directly mass-produced in terms of production, and is no longer restricted by the length of the square shaft 2, thereby expanding the scope of application. In addition, the parts of the entire mechanism are all metal products, which can effectively ensure the service life of the equipment.

[0043] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A window handle without a base, comprising a window frame (1), a square shaft (2) and a handle (4), wherein a positioning plate (6) and a limit seat (11) are provided inside the handle (4), a telescopic spring (9) and a steel ball (10) are provided on one side of the positioning plate (6), a limit plate (12) is provided inside the handle (4), and the handle (4) is connected with a headless bolt (15), characterized in that: A shaft sleeve (7) is provided inside the limit seat (11), a clamping seat (13) is provided inside the handle (4), the clamping seat (13) is connected to a connecting rod (14), and a metal pad (8) is sleeved on the outer wall of the shaft sleeve (7).

2. The baseless window handle according to claim 1, characterized in that: One end of the square shaft (2) passes through the side wall of the window frame (1), and a through hole (101) is provided in the side wall of the window frame (1). The square shaft (2) is located on the inner side of the positioning plate (6), and the side of the positioning plate (6) away from the window frame (1) is fixedly connected to one end of the telescopic spring (9). The positioning plate (6) is connected to a fixing bolt (16), and the other end of the telescopic spring (9) is fixedly connected to the steel ball (10).

3. The baseless window handle according to claim 1, characterized in that: The cross section of the shaft sleeve (7) is arranged in a "convex" shape, and a side wall at one end of the shaft sleeve (7) is provided with a docking groove (701) corresponding to the square shaft (2), and a docking groove (702) corresponding to the connecting rod (14) is provided at the other end of the shaft sleeve (7). The docking groove (701) is sleeved on the outer wall of one end of the square shaft (2), and the docking groove (701) and the docking groove (702) are connected. A connecting bolt (5) is provided inside the shaft sleeve (7).

4. The baseless window handle according to claim 2, characterized in that: A placement groove (1104) is provided on one side of the limiting seat (11), and a circular hole (1101) and a mounting slot hole (1102) are provided on the inner wall of the placement groove (1104), and the cross section of the circular hole (1101) is arranged in a stepped shape. A limiting ring (1105) is fixedly connected to the side wall of the limiting seat (11), and the limiting ring (1105) is located on one side of the mounting slot hole (1102). The limiting ring (1105) is arranged in a semi-annular shape, and the outer diameter of the limiting ring (1105) is smaller than the inner diameter of the through hole (101). A socket (1103) is provided on the inner wall of the central axis of the placement groove (1104), and the cross section of the socket (1103) is arranged in a stepped shape. A connecting groove (1106) threadedly connected to the fixing bolt (16) is provided on the inner wall of the placement groove (1104).

5. The baseless window handle according to claim 4, characterized in that: The jack (1103) is sleeved on the outside of the shaft sleeve (7), the placement groove (1104) is fixedly connected to the positioning plate (6) through a fixing bolt (16) and a connecting groove (1106), the inner wall of one end of the circular hole (1101) is slidably connected to the steel ball (10), the inner diameter of the other end of the circular hole (1101) is smaller than the outer diameter of the steel ball (10), the limiting seat (11) is connected to a positioning bolt (3), and one end of the positioning bolt (3) passes through the mounting slot hole (1102) and the through hole 1 (101).

6. The baseless window handle according to claim 1, characterized in that: A limiting plate (12) is provided on one side of the clamping seat (13), and the limiting plate (12) is located between the limiting seat (11) and the clamping seat (13). A second limiting groove (1201) is provided on the outer wall of the limiting plate (12), and a second through hole (1202) is provided on the side wall of the limiting plate (12). The inner diameter of the second through hole (1202) is the same as the inner diameter of the end with the smaller diameter of the circular hole (1101).

7. The baseless window handle according to claim 6, characterized in that: The holder (13) is arranged in a "T" shape, and a groove (1305) corresponding to the second through hole (1202) is provided on one side of the holder (13), and a limiting block (1302) that is mutually engaged with the second limiting groove (1201) is fixedly connected to the side wall of the holder (13). A limiting groove (1303) is provided on the outer wall of the holder (13), and a slot (1301) corresponding to one end of the shaft sleeve (7) is provided on the side wall of one end of the holder (13). A fixing groove (1307) matching the connecting rod (14) is provided on the side wall of the other end of the holder (13), and a ball head groove (1304) is provided on the side wall of the holder (13). A connecting groove (1306) is provided on one side of the holder (13).

8. The baseless window handle according to claim 1, characterized in that: One end of the connecting rod (14) is arranged in a square column shape, and the other end of the connecting rod (14) is arranged in a cylindrical shape. A thread groove (1401) is provided at one end of the connecting rod (14), and the thread groove (1401) is threadedly connected to the connecting bolt (5).

9. The baseless window handle according to claim 1, characterized in that: A connecting threaded hole (401) is provided on the side wall of the handle (4), and a headless bolt (15) is threadedly connected to the connecting threaded hole (401). A clamping groove (402) adapted to the clamping seat (13) is provided at one end of the handle (4), and a limiting strip (404) corresponding to the connecting groove (1306) is fixedly connected to the inner wall of the clamping groove (402). A limiting block (403) corresponding to the limiting groove (1303) is provided inside the clamping groove (402).

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