Double-bearing door lock structure
By adopting a dual bearing assembly design in the hand door lock, the problem of existing loose structure is solved, and the close cooperation between the hand holder and the hand holder cover is achieved, preventing shaking and wear, extending service life, and simplifying production processes and improving production efficiency.
Patent Information
- Application Number
- CN202422394202.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-30
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-09-30
AI Technical Summary
The existing hand lock structure is cumbersome, loose and not compact, causing the handle to shake and wear, affecting the feel and life of use, and the production process is complicated.
The dual bearing assembly design is adopted to make the handle head and the handle cover tightly fit, and the first and second bearings are tightly sleeved on the outer and inner ends of the cylinder to ensure that there is no looseness, avoid wear, and achieve smooth rotation through the limiting ring and return spring.
It realizes a close cooperation between the handle and the handle cover, prevents shaking, extends service life, simplifies production processes, improves production efficiency, and has a good feel for use.
Smart Images
Figure CN223135845U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of door handle locks, and particularly relates to a door lock structure with double bearings. Background Art
[0002] At present, door handle locks account for a large proportion in the entire lock market. There are various styles of door handle locks with different structures. The design of existing door handle locks is relatively traditional and old, with a cumbersome and complex structure. The structural design is not scientific and reasonable enough. Generally, the rotation structure of the door lock handle at present uses a spring to drive the handle to reset. There will be a certain gap between the rotating part and the fixed part, and the structure is loose and not compact. When using, the handle will shake. When the handle is turned, the accessories will wear against each other, making the rotation not smooth, affecting the use feel, and also affecting the service life of the accessories and the overall door lock.
[0003] Therefore, how to achieve a door lock structure with double bearings, which has a novel and reasonable structural design, is provided with double bearing components so that the handle head and the handle cover are closely matched, there will be no looseness, the handle is prevented from shaking, the wear between the accessories is avoided, the rotation is smooth, the use feel is good, the service life of the accessories and the overall door lock is effectively prolonged, the number of parts is small and the layout design is reasonable, the structure is concise and compact, the production and processing procedures are effectively simplified, and the production efficiency is improved, is a technical problem urgently to be solved in the industry. Summary of the Invention
[0004] The main purpose of the utility model is to provide a door lock structure with double bearings, aiming to achieve a door lock structure with double bearings, which has a novel and reasonable structural design, is provided with double bearing components so that the handle head and the handle cover are closely matched, there will be no looseness, the handle is prevented from shaking, the wear between the accessories is avoided, the rotation is smooth, the use feel is good, the service life of the accessories and the overall door lock is effectively prolonged, the number of parts is small and the layout design is reasonable, the structure is concise and compact, the production and processing procedures are effectively simplified, and the production efficiency is improved.
[0005] The utility model proposes a double-bearing door lock structure, including a front handle assembly, a rear handle assembly, a square rod and a screw assembly connected between the front handle assembly and the rear handle assembly, and a reverse locking rod arranged in the square rod; the front handle assembly includes a front handle, a front decorative plate covered on the front handle, and also includes a front handle head, a front handle cover, a lock core, a reverse locking piece, a first bearing, a second bearing, a plurality of sliding blocks, a first return spring, a gasket, a first retaining spring, a second retaining spring, and a plurality of first screws; the lock core is sleeved into the gasket and placed in the lock core hole of the front handle, and is fixed by the first retaining spring, the reverse locking piece is placed in the first circular hole of the front handle head, the reverse locking rod is clamped into the reverse locking piece, the front handle head is placed in the front handle, a first column is provided on the front handle head, first protrusions are provided on both sides of the first column, the first return spring is sleeved on the first column and the two ends of the first return spring are clamped on the first protrusions, the front handle cover is sleeved outside the first column of the front handle head, and the first bearing is tightly sleeved on the outer end position of the first column The first bearing is tightly sleeved between the outer end of the first column and the front handle cover, and the second bearing is tightly sleeved at the inner end position of the first column and fixed by the second retaining spring, so that the front handle head and the front handle cover are tightly combined, and the first bearing and the second bearing form a front double bearing assembly that can make the front handle head and the front handle cover tightly combined; a flat hole engaged with the slider is provided at the middle position of the first column, and a toggle arc surface that can toggle the slider to move inward and outward is provided on the anti-locking member in the front handle head, the slider is engaged in the flat hole and fits with the toggle arc surface, and an arc-shaped notch adapted to the slider is provided on the inner side of the front handle cover. When locking, the rotating lock core drives the anti-locking member to rotate, and the toggle arc surface of the anti-locking member causes the slider to move outward and combines with the arc-shaped notch to fix the front handle and cannot rotate. When unlocking, the reverse lock core drives the anti-locking member to rotate in the opposite direction, and when the front handle is pressed down, the slider moves inward and separates from the arc-shaped notch.
[0006] Preferably, a first limiting ring for limiting the first bearing is provided at the outer end of the first column, and the first return spring is sleeved on the first limiting ring.
[0007] Preferably, a plurality of first bosses are provided on the front handle head, a first groove adapted to and engaged with the first bosses is provided in the front handle, the front handle head is placed in the front handle and the first bosses are correspondingly engaged with the first grooves, and fixed by screws.
[0008] Preferably, the rear handle assembly includes a rear handle, a rear decorative plate covering the rear handle, and further includes a rear handle head, a rear handle cover, an anti-lock shaft, a toggle member, a third bearing, a fourth bearing, a second return spring, a third snap ring, and a plurality of second screws; the anti-lock shaft is disposed inside the rear handle and is linked with the toggle member through a gear structure, and an anti-lock rod is clamped into the anti-lock shaft and is linked with the anti-lock shaft; the rear handle head is disposed inside the rear handle, a second cylinder is provided on the rear handle head, second protrusions are provided on both sides of the second cylinder, the second return spring is sleeved on the second cylinder and both ends of the second return spring are clamped on the second protrusions; the rear handle cover is sleeved outside the second cylinder of the rear handle head, the third bearing is tightly sleeved at the outer end position of the second cylinder, the third bearing is tightly sleeved between the outer end of the second cylinder and the rear handle cover, the fourth bearing is tightly sleeved at the inner end position of the second cylinder and is fixed by a third snap ring, and the fourth bearing is tightly sleeved between the inner end of the second cylinder and the rear handle cover, so that the rear handle head and the rear handle cover are tightly combined, and the third bearing and the fourth bearing form a rear double-bearing assembly that can tightly combine the rear handle head and the rear handle cover; when locking from inside the door, move the toggle member, the toggle member drives the anti-lock shaft to rotate through the gear structure, the anti-lock shaft drives the anti-lock rod to rotate, the anti-lock rod drives the anti-lock member to rotate so that the toggle arc surface drives the slider to move outwards, and combines with the arc-shaped notch so that the rear handle is fixed and cannot rotate. When unlocking from inside the door, move the toggle member in the reverse direction to rotate the anti-lock shaft, the anti-lock shaft drives the anti-lock rod to rotate, the anti-lock rod drives the anti-lock member to rotate so that the toggle arc surface releases the fixation on the slider, and press down the rear handle to move the slider inwards and separate from the arc-shaped notch.
[0009] Preferably, a second limiting ring for limiting the third bearing is provided at the outer end position of the second cylinder, and the second return spring is sleeved on the second limiting ring.
[0010] Preferably, a plurality of second protrusions are provided on the rear handle head, and second grooves adapted to and engaged with the second protrusions are provided inside the rear handle. The rear handle head is disposed inside the rear handle and the second protrusions are correspondingly engaged with the second grooves, and are fixed by means of screws.
[0011] The utility model realizes a door lock structure with a novel and reasonable structural design, provided with a double-bearing assembly so that the handle head and the handle cover are tightly matched, there will be no looseness, preventing the handle from shaking, avoiding wear between accessories, making the rotation smooth, having a good hand feeling, effectively prolonging the service life of the accessories and the overall door lock, having a small number of parts and a reasonable layout design, being structurally concise and compact, effectively simplifying the production and processing procedures, and improving the production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 FIG. 1 is one of the three-dimensional structural schematic diagrams of an embodiment of a door lock structure with a double bearing according to the utility model;
[0013] Figure 2Schematic diagram II of the three-dimensional structure of an embodiment of a double-bearing door lock structure of the present utility model;
[0014] Figure 3 Partial structural decomposition diagram I of an embodiment of a double-bearing door lock structure of the present utility model;
[0015] Figure 4 Partial structural decomposition diagram II of an embodiment of a double-bearing door lock structure of the present utility model;
[0016] Figure 5 Partial structural decomposition diagram III of an embodiment of a double-bearing door lock structure of the present utility model;
[0017] Figure 6 Partial structural decomposition diagram IV of an embodiment of a double-bearing door lock structure of the present utility model;
[0018] Figure 7 Partial structural decomposition diagram V of an embodiment of a double-bearing door lock structure of the present utility model, wherein the rear decorative plate is not shown;
[0019] Figure 8 Schematic diagram of the three-dimensional structure of the front handle in an embodiment of a double-bearing door lock structure of the present utility model;
[0020] Figure 9 Schematic diagram of the three-dimensional structure of the front handle head in an embodiment of a double-bearing door lock structure of the present utility model;
[0021] Figure 10 Schematic diagram of the three-dimensional structure of the front handle cover in an embodiment of a double-bearing door lock structure of the present utility model.
[0022] The realization of the object, functional features and advantages of the present utility model will be further described with reference to the embodiments and the accompanying drawings. Detailed implementation manners
[0023] It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.
[0024] Referring to Figures 1 to 10 , an embodiment of a double-bearing door lock structure of the present utility model is proposed, which includes a front handle assembly, a rear handle assembly, and further includes a square rod 101 and a screw rod assembly 102 connected between the front handle assembly and the rear handle assembly, and an anti-lock rod 103 arranged in the square rod 101.
[0025] The front handle assembly includes a front handle 104, a front decorative plate 105 covering the front handle 104, a front handle head 106, a front handle cover 107, a lock core 108, a locking piece 109, a first bearing 110, a second bearing 111, a plurality of sliders 112, a first return spring 113, a gasket 114, a first retaining spring 115, a second retaining spring 116, and a plurality of first screws.
[0026] The lock core 108 is inserted into the gasket 114 and then placed in the lock core hole of the front handle 104 and is fixed by the first clamping spring 115 .
[0027] The anti-locking member 109 is placed in the first circular hole of the front handle head 106 , and the anti-locking rod 103 is clamped into the anti-locking member 109 .
[0028] The front handle head 106 is placed in the front handle 104, and a first column 117 is provided on the front handle head 106. First protrusions 118 are provided on both sides of the first column 117. The first return spring 113 is sleeved on the first column 117 and both ends of the first return spring 113 are clamped on the first protrusion 118. First screw hole columns 119 for installing the first screw are provided on both sides of the front handle cover 107, and the first screw hole columns 119 correspond to the first protrusion 118.
[0029] The front handle cover 107 is sleeved on the outside of the first column 117 of the front handle head 106, and the first bearing 110 is tightly sleeved at the outer end of the first column 117. The first bearing 110 is tightly sleeved between the outer end of the first column 117 and the front handle cover 107. The second bearing 111 is tightly sleeved at the inner end of the first column 117 and is fixed by a second retaining spring 116. The second bearing 111 is tightly sleeved between the inner end of the first column 117 and the front handle cover 107, so that the front handle head 106 and the front handle cover 107 are tightly combined. The first bearing 110 and the second bearing 111 constitute a front double bearing assembly that can tightly combine the front handle head 106 and the front handle cover 107.
[0030] A flat hole 120 engaged with the slider 112 is provided at the middle position of the first column 117, and a sliding arc surface 121 for moving the slider 112 inward and outward is provided on the anti-locking piece 109 in the front handle head 106, and the slider 112 is engaged into the flat hole 120 and fits with the sliding arc surface 121, and an arc-shaped notch 122 adapted to the slider 112 is provided on the inner side of the front handle cover 107. When locking, the rotating lock core 108 drives the anti-locking piece 109 to rotate, and the sliding arc surface 121 of the anti-locking piece 109 causes the slider 112 to move outward and combine with the arc-shaped notch 122 to fix the front handle 104 and prevent it from rotating. When unlocking, the reverse lock core 108 drives the anti-locking piece 109 to rotate in the opposite direction, and when the front handle 104 is pressed down, the slider 112 moves inward and separates from the arc-shaped notch 122.
[0031] A double bearing assembly is tightly fitted between the front handle head 106 and the front handle cover 107, the first bearing 110 is tightly fitted at the outer ends of the front handle head 106 and the front handle cover 107, and the second bearing 111 is tightly sleeved at the inner ends of the front handle head 106 and the front handle cover 107, that is, bearings are provided at both ends of the front handle head 106 and the front handle cover 107, so as to ensure that there is no looseness between the two, prevent the handle from shaking, avoid wear between accessories, make the rotation smooth, and have a good feel, effectively extending the service life of the accessories and the overall door lock, the structural design is novel and reasonable, the number of parts is small and the layout design is reasonable, the structure is simple and compact, and the production and processing procedures are effectively simplified to improve production efficiency.
[0032] A first limiting ring 123 is disposed at the outer end of the first column 117 to limit the first bearing 110 . The first return spring 113 is sleeved on the first limiting ring 123 .
[0033] The front handle head 106 is provided with a plurality of first bosses 124, and the front handle 104 is provided with first grooves 125 adapted and engaged with the first bosses 124. The front handle head 106 is placed in the front handle 104 and the first bosses 124 are engaged with the first grooves 125 accordingly, and fixed by screws.
[0034] The rear handle assembly includes a rear handle 126, a rear decorative plate 127 covering the rear handle 126, a rear handle head 128, a rear handle cover 129, an anti-lock shaft 130, a toggle member 131, a third bearing 132, a fourth bearing 133, a second return spring 134, a third retaining spring 135, and a plurality of second screws.
[0035] The anti-lock shaft 130 is disposed in the rear handle 126 and is linked to the toggle member 131 through a gear structure. The anti-lock rod 103 is clamped into the anti-lock shaft 130 and is linked to the anti-lock shaft 130 .
[0036] The rear handle head 128 is placed in the rear handle 126, and a second column 136 is provided on the rear handle head 128. Second protrusions 137 are provided on both sides of the second column 136. The second return spring 134 is sleeved on the second column 136 and both ends of the second return spring 134 are clamped on the second protrusions 137; second screw hole columns 139 for installing second screws are provided on both sides of the rear handle cover 129, and the second screw hole columns 139 correspond to the second protrusions 137.
[0037] The rear handle cover 129 is sleeved outside the second cylinder 136 of the rear handle head 128. The third bearing 132 is tightly sleeved at the outer end position of the second cylinder 136. The third bearing 132 is tightly sleeved between the outer end of the second cylinder 136 and the rear handle cover 129. The fourth bearing 133 is tightly sleeved at the inner end position of the second cylinder 136 and is fixed by the third snap ring 135. The fourth bearing 133 is tightly sleeved between the inner end of the second cylinder 136 and the rear handle cover 129, so that the rear handle head 128 and the rear handle cover 129 are closely combined. The third bearing 132 and the fourth bearing 133 form a rear double-bearing assembly that can closely combine the rear handle head 128 and the rear handle cover 129.
[0038] When locking from inside the door, move the toggle 131. The toggle 131 drives the anti-lock shaft 130 to rotate through the gear structure. The anti-lock shaft 130 drives the anti-lock lever 103 to rotate. The anti-lock lever 103 drives the anti-lock part 109 to rotate, so that the toggle arc surface 121 toggles the slider 112 to move outwards and combines with the arc-shaped notch 122, thus fixing the rear handle 126 and preventing it from rotating. When unlocking from inside the door, move the toggle 131 in the reverse direction to make the anti-lock shaft 130 rotate. The anti-lock shaft 130 drives the anti-lock lever 103 to rotate. The anti-lock lever 103 drives the anti-lock part 109 to rotate, so that the toggle arc surface 121 releases the fixation on the slider 112. Press down the rear handle 126 to make the slider 112 move inwards and separate from the arc-shaped notch 122.
[0039] A double-bearing assembly is tightly fitted between the rear handle head 128 and the rear handle cover 129. The third bearing 132 is tightly fitted at the outer ends of the rear handle head 128 and the rear handle cover 129. The fourth bearing 133 is tightly sleeved at the inner ends of the rear handle head 128 and the rear handle cover 129, that is, bearings are provided at both ends of the rear handle head 128 and the rear handle cover 129. This can ensure that there is no looseness between the two, prevent the handle from shaking, avoid wear between the accessories, make the rotation smooth, have a good feel in use, effectively extend the service life of the accessories and the overall door lock, the structural design is novel and reasonable, the number of parts is small and the layout design is reasonable, the structure is simple and compact, effectively simplifies the production and processing procedures, and improves production efficiency.
[0040] A second limiting ring 138 for limiting the third bearing 132 is provided at the outer end position of the second cylinder 136. The second return spring 134 is sleeved on the second limiting ring 138.
[0041] Several second convex platforms are provided on the rear handle head 128. Second grooves adapted to and engaged with the second convex platforms are provided in the rear handle 126. The rear handle head 128 is placed in the rear handle 126 and the second convex platforms are correspondingly engaged with the second grooves, and are fixed by screws.
[0042] The utility model realizes a door lock structure with double bearings, which has a novel and reasonable structural design. By providing double bearing components, the handle head and the handle cover are tightly fitted together, preventing loosening, avoiding the shaking of the handle, preventing wear between accessories, ensuring smooth rotation, providing a good use feel, effectively extending the service life of the accessories and the overall door lock, having a small number of components and a reasonable layout design, being simple, refined and compact in structure, effectively simplifying the production and processing procedures, and improving the production efficiency.
[0043] The above are only the preferred embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. Any equivalent structural transformation made by using the content of the specification and drawings of the present utility model, or directly or indirectly applied in other related technical fields, shall be similarly included in the patent protection scope of the present utility model.
Claims
1. A door lock structure with double bearings, characterized in that It includes a front handle assembly, a rear handle assembly, a square rod and a screw assembly connected between the front handle assembly and the rear handle assembly, and a locking rod arranged in the square rod; The front handle assembly includes a front handle, a front decorative plate covering the front handle, a front handle head, a front handle cover, a lock core, a locking member, a first bearing, a second bearing, a plurality of sliders, a first return spring, a gasket, a first retaining spring, a second retaining spring, and a plurality of first screws; The lock core is inserted into the gasket and then placed in the lock core hole of the front handle, and is fixed by a first clamping spring. The anti-locking piece is placed in the first circular hole of the front handle head, the anti-locking rod is clamped into the anti-locking piece, the front handle head is placed in the front handle, a first column is provided on the front handle head, first convex blocks are provided on both sides of the first column, a first return spring is sleeved on the first column, and two ends of the first return spring are clamped on the first convex blocks; The front handle cover is sleeved on the outside of the first column of the front handle head, the first bearing is tightly sleeved at the outer end of the first column, the first bearing is tightly sleeved between the outer end of the first column and the front handle cover, the second bearing is tightly sleeved at the inner end of the first column and is fixed by a second retaining spring, the second bearing is tightly sleeved between the inner end of the first column and the front handle cover, so that the front handle head and the front handle cover are tightly combined, and the first bearing and the second bearing constitute a front double bearing assembly that can make the front handle head and the front handle cover tightly combined; A flat hole engaged with the slider is provided at the middle position of the first column, and a sliding arc surface for moving the slider inward and outward is provided on the anti-locking piece in the front handle head, the slider is engaged into the flat hole and fits with the sliding arc surface, and an arc-shaped notch adapted to the slider is provided on the inner side of the front handle cover. When locking, the rotating lock core drives the anti-locking piece to rotate, and the sliding arc surface of the anti-locking piece causes the slider to move outward and combines with the arc-shaped notch to fix the front handle and prevent it from rotating. When unlocking, the reverse lock core drives the anti-locking piece to rotate in the opposite direction, and when the front handle is pressed down, the slider moves inward and separates from the arc-shaped notch.
2. The double-bearing door lock structure according to claim 1, characterized in that, A first limiting ring is arranged at the outer end of the first column to limit the first bearing, and the first return spring is sleeved on the first limiting ring.
3. The door lock structure with double bearings according to claim 2, characterized in that, A plurality of first bosses are arranged on the front handle head, and a first groove adapted and engaged with the first bosses is arranged in the front handle. The front handle head is placed in the front handle and the first bosses are engaged with the first grooves correspondingly, and fixed by screws.
4. A double-bearing door lock structure according to claim 1, characterized in that, The rear handle assembly includes a rear handle, a rear decorative plate covering the rear handle, a rear handle head, a rear handle cover, an anti-locking shaft, a toggle member, a third bearing, a fourth bearing, a second return spring, a third retaining spring, and a plurality of second screws; The anti-lock shaft is placed in the rear handle and is linked to the toggle member through a gear structure, and the anti-lock rod is clamped in the anti-lock shaft and is linked to the anti-lock shaft; The rear handle head is placed in the rear handle, a second column is provided on the rear handle head, second protrusions are provided on both sides of the second column, a second return spring is sleeved on the second column and two ends of the second return spring are clamped on the second protrusions; The rear handle cover is sleeved on the outside of the second column of the rear handle head, the third bearing is tightly sleeved at the outer end of the second column, the third bearing is tightly sleeved between the outer end of the second column and the rear handle cover, the fourth bearing is tightly sleeved at the inner end of the second column and is fixed by a third retaining spring, and the fourth bearing is tightly sleeved between the inner end of the second column and the rear handle cover, so that the rear handle head and the rear handle cover are tightly combined, and the third bearing and the fourth bearing constitute a rear double bearing assembly that can tightly combine the rear handle head and the rear handle cover; When locking the door from the inside, the toggle piece is moved, and the toggle piece drives the anti-lock shaft to rotate through the gear structure, and the anti-lock shaft drives the anti-lock rod to rotate, and the anti-lock rod drives the anti-lock piece to rotate so that the toggle arc surface drives the toggle slider to move outward and combines with the arc-shaped notch to fix the rear handle and cannot rotate. When unlocking the door from the inside, the toggle piece is moved in the opposite direction to rotate the anti-lock shaft, and the anti-lock shaft drives the anti-lock rod to rotate, and the anti-lock rod drives the anti-lock piece to rotate so that the toggle arc surface releases the fixation on the slider, and the rear handle is pressed down to move the slider inward and separate from the arc-shaped notch.
5. The door lock structure with a double bearing according to claim 4, characterized in that, A second limiting ring is arranged at the outer end of the second column to limit the third bearing, and the second return spring is sleeved on the second limiting ring.
6. The door lock structure with double bearings according to claim 5, characterized in that, A plurality of second bosses are arranged on the rear handle head, and a second groove adapted and engaged with the second bosses is arranged in the rear handle. The rear handle head is placed in the rear handle and the second bosses are engaged with the second grooves correspondingly, and fixed by screws.