CN220014771U - Return handle structure of screw concealed door lock - Google Patents

Abstract

The utility model discloses a resettable handle structure of a screw concealed door lock, which comprises an inner handle, an outer handle and square bars, wherein the inner handle and the outer handle are L-shaped, round covers are arranged at the root parts of the inner handle and the outer handle respectively and are inserted at two ends of the square bars, the resettable handle structure also comprises an inner cover body and a spring, external threads are arranged outside the inner cover body, an inner thread which is in fit and screwed with the inner cover body is arranged in the round cover inner cavity of the inner cover body, a shaft sleeve is connected onto the square bars in a sliding manner, a shaft piece is movably connected onto the shaft sleeve, a retainer ring for limiting the shaft piece to be separated is arranged at the outer end of the shaft sleeve, a pulling piece perpendicular to the shaft piece is arranged at the lower side of the shaft piece, positioning pieces are arranged at the side of the inner cavity of the inner cover body, two torsion legs of the spring are U-shaped and are clamped at two sides of the positioning pieces, and the pulling piece extends between the two torsion legs of the spring. The handle is rotated to drive the square bar to rotate, the shaft piece rotates along with the square bar, the poking piece pokes the torsion legs of the spring to enable the torsion legs to deform, and after the handle is released, the square bar is reset under the elasticity of the spring, so that the device is simple in structure and convenient to process and assemble.

Description

Return handle structure of screw concealed door lock

Technical Field

The utility model relates to the technical field of door locks, in particular to a return handle structure of a screw concealed door lock.

Background

The conventional door lock is opened by rotating a handle and pushing and pulling the handle, wherein the handle is rotated to open the door, and the handle is pushed and pulled to open the door by pushing or pulling the handle. The rotary door is composed of an inner handle and an outer handle, the inner handle and the outer handle are connected through square bars to realize linkage, the square bars penetrate through the lock body, and when the square bars rotate, the lock tongue of the lock body can be driven to do telescopic motion. At present, the rotary door handle is generally reset after rotation through a spring (or torsion spring).

For example, chinese patent publication No. CN202222418984 discloses a novel multifunctional door lock panel handle, which effectively reduces the abrasion between the handle and the connecting plate through the arrangement of the first plastic ring and the second plastic ring, rotates the handle, drives the screw to synchronously rotate through the angle piece, the screw extrudes the prying spring, and when the handle is loosened, the spring resets to drive the handle to return, so that the door lock panel handle is convenient to assemble. However, the above scheme has the following disadvantages: in order to realize more parts with return function, the parts such as the upper angle piece, the lower angle piece and the like have complex structures, are inconvenient to assemble and have higher manufacturing cost.

Disclosure of Invention

The utility model aims to provide a return handle structure of a screw concealed door lock, which solves the problems in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a but screw secretly installs door lock's return handle structure, includes interior handle, outer handle and square strip, interior handle, outer handle are L shape and are equipped with the button cap in the root, interior handle, outer handle peg graft respectively in the both ends of square strip, still include the inner cup body and spring, the outside of the inner cup body is equipped with the external screw thread, interior handle's button cap inner chamber is equipped with the internal thread with inner cup looks adaptation spiro union, sliding connection has the axle sleeve on the square strip, swing joint has the axle piece on the axle sleeve, and the outer end of axle sleeve is equipped with the retaining ring that the restriction axle piece breaks away from, the downside of axle piece is equipped with rather than vertically plectrum, inner cup body inner chamber avris is equipped with the spacer, two twists the foot of spring are U-shaped and block in the both sides of spacer, the plectrum stretches to between two twists the foot of spring, cup joint the packing ring subassembly on the square strip, the packing ring subassembly is located between axle piece and the spring and compressed tightly after the installation.

Preferably, the inner cavity of the round cover of the outer handle is provided with two symmetrical nut columns, and the nut columns are fixedly connected with the inner cover body through screws.

Compared with the prior art, the utility model has the beneficial effects that: the handle is rotated to drive the square bar to rotate, the shaft piece rotates along with the square bar, the poking piece pokes the torsion legs of the spring to enable the torsion legs to deform, after the handle is released, the spring returns under the elasticity of the spring, the structure is simple, the processing and the assembly are convenient, the inner handle and the inner cover body adopt a mode of concealed screw threads, and the installation is firm and attractive appearance is not affected.

Drawings

FIG. 1 is a schematic diagram of an explosive structure of the present utility model;

fig. 2 is a schematic diagram of an explosive structure according to the present utility model.

In the figure: 1. an inner handle; 2. an outer handle; 3. square bars; 4. an inner cover body; 5. a shaft sleeve; 6. a spring; 7. a positioning sheet; 8. a nut post; 9. a shaft sheet; 10. a pulling piece; 11. a gasket assembly.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Referring to fig. 1-2, the present utility model provides a technical solution: but screw secretly adorns door lock's return handle structure, including interior handle 1, outer handle 2 and square strip 3, interior handle 1, outer handle 2 are L shape and are equipped with the dome at the root, interior handle 1, outer handle 2 peg graft respectively at square strip 3's both ends, square strip 3 is used for transmitting the moment of torsion, still include inner cup body 4 and spring 6, the outside of inner cup body 4 is equipped with the external screw thread, the dome inner chamber of interior handle 1 is equipped with the internal screw thread with inner cup body 4 looks adaptation spiro union, for the mode of secretly adorning, do not influence the aesthetic degree, the dome inner chamber of outer handle 2 is equipped with the nut post 8 of two symmetries, be fixed through the screw connection between nut post 8 and the inner cup body 4, be equipped with on the inner cup body 4 can be relative its round hole with nut post 8.

The square bar 3 is connected with the shaft sleeve 5 in a sliding manner, the shaft sleeve 5 is movably connected with the shaft sheet 9, the outer end of the shaft sleeve 5 is provided with the retainer ring for limiting the shaft sheet 9 to be separated, the lower side of the shaft sheet 9 is provided with the pulling sheet 10 perpendicular to the shaft sheet, the side of the inner cavity of the inner cover body 4 is provided with the positioning sheet 7, the positioning sheet 7 is used for restraining the spring 6 to rotate, two torsion legs of the spring 6 are U-shaped and clamped on two sides of the positioning sheet 7, the pulling sheet 10 extends between the two torsion legs of the spring 6 and is inserted into a gap between the positioning sheet 7 and the side wall of the inner cover body 4, the square bar 3 is sleeved with the gasket assembly 11, the gasket assembly 11 is positioned between the shaft sheet 9 and the spring 6 and is compressed after being installed, the shaft sleeve 5 can transmit torsion moment to the shaft sheet 9 under the compressed state, and then the pulling sheet 10 can pull the torsion legs of the spring 6 to deform, and realize return under the action of elastic force after release.

Working principle: when the handle is rotated, the square bar 3 rotates, the shaft piece 9 rotates along with the square bar, the poking piece 10 pokes the torsion legs of the spring 6 to enable the torsion legs to deform, after the handle is released, the inner handle 1 and the inner cover body 4 are reset under the elasticity of the spring 6 in a threaded concealed mode, and the installation is firm and attractive appearance is not affected.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (2)

1. But screw secretly adorns door lock's return handle structure, including interior handle (1), outer handle (2) and square strip (3), interior handle (1), outer handle (2) are L shape and are equipped with the dome at the root, interior handle (1), outer handle (2) peg graft respectively at the both ends of square strip (3), its characterized in that: still include inner cup body (4) and spring (6), the outside of inner cup body (4) is equipped with the external screw thread, the dome inner chamber of inner handle (1) is equipped with the internal screw thread with inner cup body (4) looks adaptation spiro union, sliding connection has axle sleeve (5) on square strip (3), swing joint has axle piece (9) on axle sleeve (5), and the outer end of axle sleeve (5) is equipped with the retaining ring that restriction axle piece (9) breaks away from, the downside of axle piece (9) is equipped with rather than vertically plectrum (10), inner cup body (4) inner chamber avris is equipped with spacer (7), two twists the foot of spring (6) are U-shaped and block in the both sides of spacer (7), between two twists the foot of spring (6) plectrum (10), cup joint packing ring subassembly (11) on square strip (3), packing ring subassembly (11) are located between axle piece (9) and spring (6) and are compressed tightly after the installation.

2. The repositionable handle structure of a screw concealed door lock of claim 1, further comprising: the inner cavity of the round cover of the outer handle (2) is provided with two symmetrical nut columns (8), and the nut columns (8) are fixedly connected with the inner cover body (4) through screws.