Fully-hidden one-piece shaft base handle

Abstract

The utility model provides a fully-hidden conjoined shaft base lever handle which comprises a lever handle body, an installation assembly and a machine-meter screw used for fixedly connecting the installation assembly with the lever handle body. The mounting assembly comprises a square shaft, a square shaft rubber sleeve, a round base, a special-shaped steel sheet, a clamping ring and a cup head screw, the square shaft rubber sleeve is fixed to the square shaft in a sleeving mode, the square shaft is sleeved with the round base and the special-shaped steel sheet to form rotary connection, and the clamping ring is clamped to the square shaft, so that the round base and the special-shaped steel sheet are limited between the square shaft rubber sleeve and the clamping ring and are integrally contained in the lever handle; the lever handle is fixedly connected with the square shaft through a machine-meter screw, and the round base is fixed on a door and window profile through a cup head screw, so that the whole body is connected through the square shaft, and the square shaft forms an integral shaft structure. Compared with the prior art, the fully-hidden connected shaft base handle is simpler in structure and better in reliability.

Description

Technical Field

[0001] The utility model relates to the technical field of hardware accessories, in particular to a fully concealed one-piece shaft base handle used for doors and windows. Background Art

[0002] At present, in the field of building doors and windows, multi-point lock handles with more than two positioning points have been fully applied. The multi-point lock handle includes a handle and a larger handle seat, and the handle seat body is exposed to the outside. The exposed handle seat will affect the indoor space, further leading to the complex external structure of the product and poor product stability. In this regard, the utility model patent with patent application number 202020237588.3 discloses a fully hidden base handle, which includes a handle, a square shaft, a base, a plastic friction cover and a rotating seat. The fully hidden design of the handle seat solves the defects that the exposed handle seat affects the indoor space, causing the complex external structure of the product and poor product stability. But it also has its disadvantages: in addition to the large number of components, the square shaft and the rotating seat are connected and fixed with screws, which have problems such as screw slippage, square shaft loosening and substandard torque, affecting its reliability.

[0003] Therefore, it is necessary to provide a new fully hidden one-piece shaft base handle to solve the above problems. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a fully concealed one-piece shaft base handle with a simpler structure and better reliability.

[0005] In order to solve the above technical problems, the utility model provides a fully hidden one-piece shaft base handle, comprising a handle, a mounting assembly, and a machine screw that fixes the mounting assembly to the handle;

[0006] The handle comprises a handle portion, a mounting portion extending from the top of the handle portion by bending, a receiving groove formed by a depression on the end surface of the mounting portion, a mounting channel depressed by the bottom of the receiving groove, and a through hole radially penetrating the mounting channel, wherein the through hole is connected to the mounting channel;

[0007] The installation assembly includes a square shaft, a square shaft rubber sleeve, a round base, a special-shaped steel sheet, a retaining ring and a cup head screw;

[0008] The square shaft comprises a middle section with a circular cross section and a first section and a second section extending from both ends of the middle section, wherein the cross sections of the first section and the second section are both square, and the second section extends to be inserted into the installation channel and is provided with a screw hole;

[0009] The square shaft rubber sleeve comprises a rubber sleeve body sleeved and fixed on the middle section and a limiting ring extending outward from one end of the rubber sleeve body close to the first section;

[0010] The circular base includes a circular base body sleeved on the rubber sleeve body, a plurality of fixing holes penetrating the base body along an axial direction parallel to the square shaft, and an inner ring groove recessed from one end of the base body close to the first section, a limit ring is received in the inner ring groove, and the circular base is rotatably connected with the square shaft rubber sleeve;

[0011] The special-shaped steel sheet is sleeved on the second section and forms a sliding connection along the axial direction of the second section;

[0012] The clamping ring is clamped on the second section and abuts against the side of the special-shaped steel sheet away from the limiting ring, so that the circular base and the special-shaped steel sheet are limited in the axial direction of the square shaft between the limiting ring and the clamping ring;

[0013] The circular base, the special-shaped steel sheet and the clamping ring are assembled and received in the receiving groove, and the circular base is rotatably connected with the mounting portion;

[0014] The cup head screw passes through the fixing hole and is used to fix the round base to the door or window to be installed;

[0015] The machine screw passes through the through hole and extends into the screw hole to fix the handle and the mounting assembly together.

[0016] Preferably, the mounting assembly also includes a spring and a steel ball; the circular base also includes a plurality of receiving holes formed by a depression on one side of the base body away from the limiting ring; the number of the springs matches the number of the receiving holes, and a spring is arranged in each of the receiving holes; the number of the steel balls matches the number of the receiving holes, and each of the steel balls is located at the opening of the corresponding receiving hole; a plurality of steel ball circular grooves are formed by a depression on one side of the special-shaped steel sheet close to the base body, each of the steel balls corresponds to a steel ball circular groove, and each of the springs pushes the corresponding steel ball and makes the steel ball partially push into the corresponding steel ball circular groove to form a rolling connection.

[0017] Preferably, an opening gap is formed on one side of the receiving hole close to the rubber sleeve body, which is used to fill the lubricant into the receiving hole.

[0018] Preferably, the square shaft further comprises a groove formed by a peripheral depression of the second section at one end close to the first section, and the retaining ring is clamped in the groove.

[0019] Preferably, the square shaft further comprises a cutout recessed by four edges of the second section, wherein the cutout is located between the middle section and the slot; and the rubber sleeve body is partially fixed in the cutout.

[0020] Preferably, the outer periphery of the middle section forms a spiral pattern.

[0021] Preferably, the square shaft rubber sleeve is formed into an integral structure with the square shaft by means of rubber-encapsulating injection molding.

[0022] Preferably, the fully concealed one-piece shaft base also includes a rivet nut for fixing to the door or window to be installed, and the cup head screw forms a threaded connection with the rivet nut.

[0023] Preferably, the circular base further comprises a protruding ring formed by extending and protruding from one end of the fixing hole close to the first section.

[0024] Compared with the prior art, in the fully concealed one-piece shaft base handle of the utility model, the installation component has its square shaft rubber sleeve fixed on the square shaft, and the round base, special-shaped steel sheet and retaining ring are mounted on the square shaft. The round base and the special-shaped steel sheet are both rotatably connected with the square shaft, and the retaining ring is fixed to the square shaft to form an axial limit, so that the round base and the special-shaped steel sheet are limited between the square shaft rubber sleeve and the retaining ring; the installation component is inserted into the handle through one end of the square shaft, and the handle is fixed to the square shaft by machine screws, so that the installation component is fixed to the handle, and at the same time, it is fixed to the door and window to be installed after passing through the round base by the cup head screw. The above structure allows the installation component to be accommodated as a whole in the handle to form a completely invisible effect, and its structure is simple. When the square shaft is driven to rotate by the handle, the round base is fixed to the door and window and is rotatably connected to the square shaft, so that the handle rotates relative to the round base, that is, the square shaft forms an integral shaft structure, which makes the installation and positioning of other components more convenient. In addition, the integral shaft structure design of the square shaft in the above structure avoids the problems of screw slippage and loosening of the square shaft during installation in the prior art, and has better reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The utility model is described in detail below in conjunction with the accompanying drawings. Through the detailed description made in conjunction with the following drawings, the above and other aspects of the utility model will become clearer and easier to understand.

[0026] In the figure:

[0027] Figure 1 It is a three-dimensional structural schematic diagram of the fully concealed one-piece shaft base handle of the utility model;

[0028] Figure 2 It is a partial exploded schematic diagram of the three-dimensional structure of the fully concealed one-piece shaft base handle of the utility model;

[0029] Figure 3 This is a schematic diagram of another part of the three-dimensional structure of the fully concealed one-piece shaft base handle of the utility model;

[0030] Figure 4 For along Figure 1 Cross-sectional view along line AA. DETAILED DESCRIPTION

[0031] The specific implementation of the present utility model is described in detail below with reference to the accompanying drawings.

[0032] The specific implementation modes / examples described herein are specific implementation modes of the present utility model, which are used to illustrate the concept of the present utility model, are explanatory and exemplary, and should not be interpreted as limiting the implementation modes of the present utility model and the scope of the present utility model. In addition to the examples described herein, those skilled in the art can also adopt other obvious technical solutions based on the contents disclosed in the claims and the specification of this application, and these technical solutions include any obvious replacement and modification of the embodiments described herein, which are within the protection scope of the present utility model.

[0033] The following descriptions of the embodiments refer to the attached drawings to illustrate specific embodiments of the present invention. Directional terms mentioned in the present invention, such as up, down, front, back, left, right, inside, outside, side, etc., are only referenced to the directions of the attached drawings. Therefore, the directional terms used are used to illustrate and understand the present invention, but are not used to limit the present invention.

[0034] Please refer to Figure 1-4 As shown, the utility model provides a fully concealed one-piece shaft base handle 100, comprising: a handle 1, a mounting assembly 2, and a machine screw 3 for fixing the mounting assembly 2 to the handle 1.

[0035] The handle 1 includes a handle portion 11, a mounting portion 12 bent and extended from the top end of the handle portion 11, a receiving groove 13 formed by a depression in the end surface of the mounting portion 12, a mounting channel 14 depressed by the bottom of the receiving groove 13, and a through hole 15 radially extending through the mounting channel 14, wherein the through hole 15 is connected to the mounting channel 14.

[0036] The mounting assembly 2 includes a square shaft 21 , a square shaft rubber sleeve 22 , a round base 23 , a special-shaped steel sheet 24 , a retaining ring 25 and a cup head screw 26 .

[0037] The square shaft 21 includes a middle section 211 with a circular cross section, and a first section 212 and a second section 213 extending from both ends of the middle section 211. The cross sections of the first section 212 and the second section 213 are both square, and the second section 213 extends to be inserted into the installation channel 14 and is provided with a screw hole 214.

[0038] The square shaft rubber sleeve 22 includes a rubber sleeve body 221 fixedly mounted on the middle section 211 and a stop ring 222 extending outward from one end of the rubber sleeve body 221 close to the first section 212. In this embodiment, the square shaft rubber sleeve 22 is integrally formed with the square shaft 21 by overmolding.

[0039] The circular base 23 includes a circular base body 231 sleeved on the rubber sleeve body 221, a plurality of fixing holes 232 penetrating the base body 231 in an axial direction parallel to the square shaft 21, and an inner ring groove (not shown) recessed from one end of the base body 231 close to the first section 212, the limiting ring 222 is received in the inner ring groove, and the circular base 23 is rotatably connected to the square shaft rubber sleeve 22. The limiting ring 222 is used to limit the circular base 23 in the axial direction, so that the circular base 23 cannot move toward the direction close to the first section 212.

[0040] Since the square shaft rubber sleeve 22 is made of rubber material, it may be deformed and its durability may be reduced. At the same time, it has the function of limiting the circular base 23 from moving downward. In this embodiment, a spiral pattern is formed on the outer periphery of the middle section 211. The spiral pattern enables the square shaft rubber sleeve 22 to have a stronger fixing force when it is sleeved on the square shaft 21, thereby effectively improving the reliability of the connection between the two.

[0041] The special-shaped steel sheet 24 is sleeved on the second section 213 and slides along the axial direction of the second section 213. That is, the special-shaped steel sheet 24 cannot rotate relative to the square shaft 21 and can only move along the axial direction of the square shaft 21.

[0042] The clamping ring 25 is clamped on the second section 213 and abuts against the side of the special-shaped steel sheet 24 away from the limiting ring 222 , so that the circular base 23 and the special-shaped steel sheet 24 are limited between the limiting ring 222 and the clamping ring 25 along the axial direction of the square shaft 21 .

[0043] Specifically, the square shaft 21 also includes a groove 215 formed by an outer peripheral recess of the second section 213 at one end close to the first section 212, and the retaining ring 25 is clamped in the groove 215 to form an engagement with the square shaft 21, thereby limiting the circular base 23 in the axial moving direction of the square shaft 21 toward the second section 213.

[0044] In this embodiment, the square shaft 21 further includes a cutout 216 recessed by four edges of the second section 213, the cutout 216 is located between the middle section 211 and the slot 215, and the rubber sleeve body 221 is partially fixed in the cutout 216. When the square shaft rubber sleeve 22 and the square shaft 21 are integrally injection molded, the plastic material of the square shaft rubber sleeve 22 can flow into the cutout 216 to form a small displacement, so that the square shaft rubber sleeve 22 and the square shaft 21 are more firmly fixed.

[0045] The circular base 23, the special-shaped steel sheet 24 and the clamping ring 25 are assembled and received in the receiving groove 13, and the circular base 23 is rotatably connected with the mounting portion 12, so that the handle 1 can be easily rotated, and the mounting assembly 2 forms a completely invisible effect.

[0046] The cup head screw 26 passes through the fixing hole 232 of the round base 23 to directly fix the round base 23 to the profile of the door and window to be installed. This embodiment also includes a rivet nut 27, which is used to be fixed to the profile of the door and window to be installed. The cup head screw 26 passes through the fixing hole 232 to form a fixed connection with the rivet nut 27, thereby fixing the round base 23 to the door and window to be installed, which is also possible.

[0047] The purpose of fast installation of other components through the round base 23 is achieved by fixing the round base 23 through the cup head screw 26. In the present embodiment, further, the round base 23 also includes a protruding ring 2321 formed by the protruding extension of the end of the fixing hole 232 close to the first section 212, and each fixing hole 232 can form a corresponding protruding ring 2321. In the present embodiment, four fixing holes 232 are provided, wherein two opposite fixing holes 232 form two protruding rings 2321 correspondingly, and the setting of the protruding ring 2321 can be fixed on the profile of the door and window, which can make the positioning more reliable when the components such as the handle 1 are installed later, and the handle 1 rotates and swings when used for a long time, so that the round base 23 may be displaced and loosened with the substrate, and the setting of the protruding ring 2321 further avoids the problem of the round base 23 being displaced and loosened with the substrate, and further improves the reliability.

[0048] Furthermore, the cup head screw 26 passes through the fixing hole 232 of the round base 23 and is directly connected to the transmission box in the profile of the door and window to be installed. That is to say, in this embodiment, the cup head screw 26 includes four pieces, two of which can be used to directly connect to the profile of the door and window to be installed or to the rivet nut 2 pre-installed on the profile, and the other two cup head screws 26 are directly connected to the transmission box. Of course, all four cup head screws 26 can be connected to the profile or the rivet nut 2 pre-installed on the profile, but the square shaft 21 and the transmission box form a transmission connection.

[0049] The machine screw 3 passes through the through hole 15 and extends into the screw hole 214 to fix the handle 1 and the mounting assembly 2 together.

[0050] Thus, in the above structure, after the handle 1 is installed on the door or window, the handle 1 is connected to the transmission box in the door or window through the square shaft 21, and the rotation of the handle 1 relative to the door or window is achieved by the square shaft rubber sleeve 22, the round base 23, the special-shaped steel sheet 24 and the retaining ring 25 sleeved on the square shaft 21, that is, the square shaft 21 forms a whole shaft structure, which makes the installation and positioning of other components more convenient, and the overall shaft structure design of the square shaft in the above structure avoids the problems of screw slippage and square shaft loosening during installation in the prior art, and has better reliability.

[0051] Preferably, the mounting assembly 2 further comprises a spring 28 and a steel ball 29. The circular base 23 further comprises a plurality of receiving holes 233 formed by a depression on a side of the base body 231 away from the limiting ring 222 .

[0052] The number of the springs 28 matches the number of the receiving holes 344 . One spring 28 is disposed in each receiving hole 233 , and the spring 28 extends out of the receiving hole 233 in a natural state.

[0053] The number of the steel balls 29 matches the number of the receiving holes 233 , and each of the steel balls 29 abuts against one of the springs 28 and is located at the opening of the corresponding receiving hole 233 .

[0054] The special-shaped steel sheet 24 is formed with a plurality of steel ball circular grooves 241 formed by a depression on one side close to the base body 231. Each of the steel balls 29 corresponds to a steel ball circular groove 241, and each of the steel balls 29 is partially accommodated in the corresponding steel ball circular groove 241 to form a rolling connection. That is, each of the springs 28 pushes against the corresponding steel ball 29 and makes the steel ball 29 partially push into the corresponding steel ball circular groove 241 to form a rolling connection. The setting of the spring 28 and the steel ball 29 makes the handle 1 have a stuck position when it is rotated 90 degrees, and it will be stuck at another 90-degree position when it is turned hard. Of course, different angles of stuck positions can be produced according to the corresponding different positions, and the principle is the same.

[0055] Preferably, the receiving hole 233 is formed with an opening gap 2331 on one side close to the rubber sleeve body 221, which is used to fill the receiving hole 233 with lubricant to provide lubrication for the spring, and the filling is more convenient. In addition, the rotation of the round base 23 relative to the square shaft rubber sleeve 22 also requires lubricant, and the lubricant filled in the receiving hole 233 can also flow out in small amounts through the opening gap 2331, so that the rotation of the round base 23 relative to the square shaft rubber sleeve 22 is smoother.

[0056] Compared with the prior art, in the fully concealed one-piece shaft base handle of the utility model, the installation component has its square shaft rubber sleeve fixed on the square shaft, and the round base, special-shaped steel sheet and retaining ring are mounted on the square shaft. The round base and the special-shaped steel sheet are both rotatably connected with the square shaft, and the retaining ring is fixed to the square shaft to form an axial limit, so that the round base and the special-shaped steel sheet are limited between the square shaft rubber sleeve and the retaining ring; the installation component is inserted into the handle through one end of the square shaft, and the handle is fixed to the square shaft by machine screws, so that the installation component is fixed to the handle, and at the same time, it is fixed to the door and window to be installed after passing through the round base by the cup head screw. The above structure allows the installation component to be accommodated as a whole in the handle to form a completely invisible effect, and its structure is simple. When the square shaft is driven to rotate by the handle, the round base is fixed to the door and window and is rotatably connected to the square shaft, so that the handle rotates relative to the round base, that is, the square shaft forms an integral shaft structure, which makes it more convenient to install and position other components through the round base. In addition, the integral shaft structure design of the square shaft in the above structure avoids the problems of screw slippage and loosening of the square shaft during installation in the prior art, and has better reliability.

[0057] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A fully concealed one-piece shaft base handle, characterized in that: It includes a handle, a mounting assembly, and a screw for fixing the mounting assembly to the handle; The handle comprises a handle portion, a mounting portion extending from the top of the handle portion by bending, a receiving groove formed by a depression on the end surface of the mounting portion, a mounting channel depressed by the bottom of the receiving groove, and a through hole radially penetrating the mounting channel, wherein the through hole is connected to the mounting channel; The installation assembly includes a square shaft, a square shaft rubber sleeve, a round base, a special-shaped steel sheet, a retaining ring and a cup head screw; The square shaft comprises a middle section with a circular cross section and a first section and a second section extending from both ends of the middle section, wherein the cross sections of the first section and the second section are both square, and the second section extends to be inserted into the installation channel and is provided with a screw hole; The square shaft rubber sleeve comprises a rubber sleeve body sleeved and fixed on the middle section and a limiting ring extending outward from one end of the rubber sleeve body close to the first section; The circular base includes a circular base body sleeved on the rubber sleeve body, a plurality of fixing holes penetrating the base body along an axial direction parallel to the square shaft, and an inner ring groove recessed from one end of the base body close to the first section, the limit ring is received in the inner ring groove, and the circular base is rotatably connected with the square shaft rubber sleeve; The special-shaped steel sheet is sleeved on the second section and forms a sliding connection along the axial direction of the second section; The clamping ring is clamped on the second section and abuts against the side of the special-shaped steel sheet away from the limiting ring, so that the circular base and the special-shaped steel sheet are limited in the axial direction of the square shaft between the limiting ring and the clamping ring; The circular base, the special-shaped steel sheet and the clamping ring are assembled and received in the receiving groove, and the circular base is rotatably connected with the mounting portion; The cup head screw passes through the fixing hole and is used to fix the round base to the door or window to be installed; The machine screw passes through the through hole and extends into the screw hole to fix the handle and the mounting assembly together.

2. The fully concealed one-piece shaft base handle according to claim 1, characterized in that: The mounting assembly also includes a spring and a steel ball; the circular base also includes a plurality of receiving holes formed by a depression on one side of the base body away from the limiting ring; the number of the springs matches the number of the receiving holes, and a spring is arranged in each of the receiving holes; the number of the steel balls matches the number of the receiving holes, and each of the steel balls is located at the opening of the corresponding receiving hole; a plurality of steel ball circular grooves are formed by a depression on one side of the special-shaped steel sheet close to the base body, each of the steel balls corresponds to a steel ball circular groove, and each of the springs pushes the corresponding steel ball and makes the steel ball partially push into the corresponding steel ball circular groove to form a rolling connection.

3. The fully concealed one-piece shaft base handle according to claim 2, characterized in that: An opening gap is formed on one side of the receiving hole close to the rubber sleeve body, which is used to fill the receiving hole with lubricant.

4. The fully concealed one-piece shaft base handle according to claim 1, characterized in that: The square shaft further comprises a clamping groove formed by a peripheral depression of the second section at one end close to the first section, and the clamping ring is clamped in the clamping groove.

5. The fully concealed one-piece shaft base handle according to claim 4, characterized in that: The square shaft also includes a cutout recessed by four edges of the second section, and the cutout is located between the middle section and the slot; the rubber sleeve body is partially fixed in the cutout.

6. The fully concealed one-piece shaft base handle according to claim 5, characterized in that: The outer periphery of the middle section forms a spiral pattern.

7. The fully concealed one-piece shaft base handle according to claim 6, characterized in that: The square shaft rubber sleeve is formed into an integral structure with the square shaft by means of rubber over-injection molding.

8. The fully concealed one-piece shaft base handle according to claim 1, characterized in that: The fully concealed one-piece shaft base also includes a rivet nut for fixing to the door or window to be installed, and the cup head screw forms a threaded connection with the rivet nut.

9. The fully concealed one-piece shaft base handle according to claim 1, characterized in that: The circular base further includes a protruding ring formed by extending and protruding from one end of the fixing hole close to the first section.

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