Ball lock mechanism and door lock thereof
By designing the ball lock mechanism, the reset component is used to assist the ball head rotation and reset, the ball head door lock is solved, and the ball head door lock is difficult to reset due to long-term use, achieving stable and convenient door lock operation.
Patent Information
- Application Number
- CN202411443206.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-16
- Publication Date
- 2025-02-25
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
After a long time of use, the ball-head door lock will increase due to extrusion deformation or environmental factors, which will increase the resistance between the lock and the door lock, which will not be able to rotate and reset, resulting in the door lock being not locked.
A ball lock mechanism is designed, including a ball head, butt sleeve, lock core, fixing collar, inner bolt, mounting sleeve and reset assembly. The reset assembly consists of a fixed sleeve, a limit sleeve, a limit block and a return spring. These components assist the ball head to rotate and reset and limit the docking of the mounting sleeve to the fixed collar.
It effectively reduces the reset failure caused by friction resistance at the ball head connection, ensures that the ball head can rotate and reset smoothly, avoids the problem of unlocked door locks, and provides convenient disassembly and maintenance methods.
Smart Images
Figure CN119507729A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the field of door locks, and in particular to a ball locking mechanism and a door lock thereof. Background Art
[0002] The main features of the ball head door lock are easy use and strong security. Its operation is very simple. Just insert the key into the lock cylinder and rotate it clockwise or counterclockwise to open or close the door lock. Due to the spherical design of the lock head, it is easier to insert the key and it can enter the lock hole accurately. In addition, the ball head door lock also has great advantages in security. It adopts a complex lock cylinder structure with a high degree of anti-pry and anti-destruction capabilities. Adding a protective cover to the lock cylinder can effectively prevent external prying and damage. The ball head door lock is suitable for various types of doors, including indoor doors and outdoor doors. It can provide safe and reliable door lock protection to prevent unauthorized persons from entering rooms or buildings. At the same time, the appearance design of the ball head door lock is also more beautiful, which can be coordinated with the overall style of the door.
[0003] The ball head door lock is a common door lock design with a round lock head. It is usually composed of a lock core, a lock tongue, a lock shell and a lock core protection sleeve, and the round lock head is connected to the door lock through the lock core protection sleeve, so that the door lock can be opened or closed by rotating the round lock head clockwise or counterclockwise, and the round lock head can be driven to rotate and reset under the action of the door lock itself by loosening the round lock head. However, after the round lock head is used for a long time, it will be squeezed and deformed, or environmental factors will cause the resistance between the round lock head and the door lock to increase, resulting in the door lock cannot drive the round lock head to rotate and reset, so that when the door is closed, the door lock will not be locked. It is not convenient to add a reset mechanism inside the round lock head when installing it to assist the round lock head to rotate and reset. Summary of the invention
[0004] The object of the present invention is to provide a ball locking mechanism and a door lock thereof to solve the problems raised in the above background technology.
[0005] To achieve the above object, the present invention provides the following technical solution: a ball lock mechanism, comprising a ball head, a docking sleeve and a lock core, one end of the docking sleeve is fixedly connected to the ball head, and the lock core is rotatably installed inside the docking sleeve; The outer wall of the docking sleeve is provided with a fixing ring, one side of the fixing ring is provided with an inner bolt, a mounting sleeve is provided between the fixing ring and the ball head, one end of the mounting sleeve corresponds to the inner bolt, a resetting assembly for assisting the ball head in rotating and resetting is provided between the inside of the mounting sleeve and the fixing ring, a mounting assembly is provided inside the mounting sleeve, and the mounting sleeve is fixedly mounted to the ball head through the mounting assembly.
[0006] Preferably, the reset component comprises: A fixed sleeve and a limiting sleeve, wherein one end of the fixed sleeve is fixedly connected to the fixed collar, and the other end of the fixed sleeve is fixedly connected to the fixed sleeve; A limit block and a return spring, wherein the limit block is fixedly installed inside the mounting sleeve, and the return spring is located on the side of the limit block. The return spring acts on the mounting sleeve through the limit block to exert a rotational return elastic force.
[0007] Preferably, the fixed sleeve and the limiting sleeve are both rotatably sleeved on the outer wall of the docking sleeve, a limiting chamber is formed between the outer wall of the fixed sleeve and the limiting sleeve and the fixed ring, the limiting block is slidably engaged with the interior of the limiting chamber, the return spring is sleeved inside the limiting chamber, and arc rods are symmetrically arranged inside the limiting chamber.
[0008] Preferably, the outer wall of the arc rod is slidably connected with the return spring, the limit block is provided with a groove on the side facing the fixed ring, the outer wall of the arc rod is slidably connected with the inner cavity of the groove, the end of the arc rod is fixedly connected with a first fixed block, the first fixed block is fixedly connected to the outer wall of the fixed sleeve, and the outer wall of the arc rod is symmetrically slidably connected with a second fixed block.
[0009] Preferably, the return spring is located between the second fixed block and the first fixed block, a first inclined slope is provided on the side of the end of the limit block, a second inclined slope is provided on the side of the second fixed block facing the limit sleeve, and an unlocking groove matching the limit block is provided on the outer wall of the limit sleeve.
[0010] Preferably, the installation assembly includes: A positioning sleeve, the end of which is fixedly connected to the ball head; A mounting block, the mounting block being fixedly mounted inside the mounting sleeve; A locking block and a limiting spring, wherein the locking block is slidably engaged between the positioning sleeve and the mounting block, and the limiting spring is located at a side of the locking block away from the positioning sleeve.
[0011] Preferably, a positioning groove is provided on the outer wall of the positioning sleeve, one side of the outer wall of the locking block is slidably engaged with the inner cavity of the positioning groove, a mounting groove is provided on the bottom of the mounting block, the other side of the outer wall of the locking block is slidably engaged with the inner cavity of the mounting groove, a fixing plate is fixedly connected to the inner cavity of the mounting groove, the fixing plate and the opposite side of the locking block are fixedly connected with a clamping seat, and the end of the limit spring is slidably engaged with the clamping seat.
[0012] Preferably, the inner cavity of the mounting sleeve is slidably connected with an unlocking ring, the top of the locking block is fixedly connected with a connecting rope, one end of the connecting rope passes through the fixing plate and the mounting block and is fixedly connected to the unlocking ring, the top of the inner cavity of the mounting groove is fixedly connected with a guide shaft for guiding the connecting rope, the guide shaft is located at the top of the fixing plate, the unlocking ring is fixedly connected with a guide rod on the side close to the mounting block, and the outer wall of the guide rod is slidably interlaced with the mounting block.
[0013] Preferably, an annular groove is provided at one end of the ball head, one end of the outer wall of the mounting sleeve is slidably connected to the inner cavity of the annular groove, the inner wall of the mounting sleeve is provided with a groove, the inner cavity of the groove is slidably connected to a mounting plate, the outer wall of the mounting plate is fixedly connected to the mounting block and the limit block, a through hole is provided at one end of the mounting plate, the inner cavity of the through hole is slidably connected to a positioning rod, the outer wall of the positioning rod is slidably connected to the mounting sleeve, and one end of the outer wall of the positioning rod is slidably connected to the ball head.
[0014] Another object of the present invention is to provide a door lock, which includes the above-mentioned ball locking mechanism.
[0015] Technical effects and advantages of the present invention: The present invention utilizes a ball head, a fixing collar, a mounting sleeve and a reset assembly in a coordinated manner, wherein the reset assembly includes a fixing sleeve, a limiting sleeve, a limiting block and a reset spring, so that after the door lock is opened by the ball head, the reset spring can drive the ball head to rotate and reset through the limiting block and the mounting sleeve, thereby reducing the situation where the ball head connection cannot be reset due to friction resistance; The present invention utilizes the coordinated use of a ball head, a fixing ring, a mounting sleeve and a mounting assembly. The mounting assembly includes a positioning sleeve, a mounting block, a locking block, a fixing plate, a limiting spring, a connecting rope, an unlocking ring, a guide rod, a mounting plate and a positioning rod. Under the action of the limiting spring and the locking block, the mounting block and the positioning sleeve can maintain a stable clamping state, thereby ensuring the stability of the docking between the mounting sleeve and the ball head. The unlocking ring is used to drive the connecting rope to move, thereby driving the locking block to separate from the positioning sleeve, so that the locking state of the mounting sleeve can be released, thereby disassembling the mounting sleeve and the ball head to facilitate the disassembly and maintenance of their internal components. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention.
[0017] Figure 2 This is a schematic diagram of the internal structure of the side of the mounting sleeve of the present invention.
[0018] Figure 3 For the present invention Figure 2 Enlarged structural diagram at A in the middle.
[0019] Figure 4 It is a schematic diagram of the internal structure of the limit block of the present invention.
[0020] Figure 5 It is a schematic diagram of the overall structure of the mounting plate of the present invention.
[0021] In the figure: 1. ball head; 2. docking sleeve; 3. lock core; 4. fixing ring; 5. inner bolt; 6. mounting sleeve; 7. reset assembly; 71. fixing sleeve; 72. limiting sleeve; 73. limiting block; 74. reset spring; 75. arc rod; 76. first fixing block; 77. second fixing block; 78. slot; 79. unlocking slot; 8. mounting assembly; 81. positioning sleeve; 82. mounting block; 83. locking block; 84. mounting slot; 85. fixing plate; 86. limiting spring; 87. connecting rope; 88. unlocking ring; 89. guide rod; 810. mounting plate; 811. positioning rod. DETAILED DESCRIPTION
[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions 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 creative work are within the scope of protection of the present invention.
[0023] The present invention provides Figure 1-5 The ball lock mechanism shown in the figure comprises a ball head 1, a docking sleeve 2 and a lock core 3. One end of the docking sleeve 2 is fixedly connected to the ball head 1. The docking sleeve 2 and the lock core 3 can be docked with the door lock. The lock core 3 is rotatably installed inside the docking sleeve 2. The outer wall of the docking sleeve 2 is provided with a fixing collar 4. One side of the fixing collar 4 is provided with an inner bolt 5. The door lock is installed on the door body. The fixing collar 4 can be fixed to the door body by the inner bolt 5, and the mounting sleeve 6 can hide the inner bolt 5 to avoid the inner bolt 5 being exposed to the outside, which can not only improve its aesthetics, but also To improve the safety of its installation, a mounting sleeve 6 is arranged between the fixing collar 4 and the ball head 1, one end of the mounting sleeve 6 corresponds to the inner bolt 5, and a reset component 7 for assisting the ball head 1 in rotating and resetting is arranged between the inside of the mounting sleeve 6 and the fixing collar 4, so that when the ball head 1 is rotated clockwise or counterclockwise, the reset component 7 can assist the ball head 1 in rotating and resetting, and the reset component 7 can also limit the docking of the mounting sleeve 6 and the fixing collar 4, and a mounting component 8 is arranged inside the mounting sleeve 6, and the mounting sleeve 6 is fixedly installed with the ball head 1 through the mounting component 8.
[0024] In particular, the reset assembly 7 includes a fixed sleeve 71, a limiting sleeve 72, a limiting block 73 and a reset spring 74. One end of the fixed sleeve 71 is fixedly connected to the fixed collar 4, and the other end of the fixed sleeve 71 is fixedly connected to the fixed sleeve 71. The limiting block 73 is fixedly installed inside the mounting sleeve 6. The reset spring 74 is located on the side of the limiting block 73, that is, both sides of the limiting block 73 have a reset spring 74, so that when the ball head 1 is rotated clockwise or counterclockwise, the limiting block 73 follows the mounting sleeve 6 to rotate and squeeze the reset spring 74. When the ball head 1 is released, the reset spring 74 that has been squeezed and deformed can drive the ball head 1 to rotate and reset through the limiting block 73 and the mounting sleeve 6, and the reset The spring 74 acts on the installation sleeve 6 to exert a rotational reset elastic force through the limit block 73. The fixed sleeve 71 and the limit sleeve 72 are both rotatably sleeved on the outer wall of the docking sleeve 2. A limit chamber is formed between the outer wall of the fixed sleeve 71 and the limit sleeve 72 and the fixed collar 4. The limit block 73 is slidably engaged with the interior of the limit chamber, so that the limit block 73 rotates inside the limit chamber to limit the position of the installation sleeve 6 and the fixed collar 4 to avoid their separation. The number of limit blocks 73 is at least two, thereby ensuring the stability of the docking between the installation sleeve 6 and the fixed collar 4. The reset spring 74 is sleeved inside the limit chamber, and arc rods 75 are symmetrically arranged inside the limit chamber.
[0025] The first and second fixing blocks 77 are fixedly connected to the outer wall of the fixing sleeve 71, and the second fixing blocks 77 are symmetrically and slidably connected to the outer wall of the fixing sleeve 71. The return spring 74 is located between the second fixing block 77 and the first fixing block 76. The arc rod 75 can ensure the stability of the return spring 74. The side of the end of the limit block 73 is provided with a first inclined slope, so that the limit block 73 fits with the second inclined surface on the opposite side of the two second fixing blocks 77, so that it can slide into the two second The unlocking groove 79 between the fixing blocks 77 can facilitate the sliding limit block 73 to slide out of the limiting chamber, thereby separating the installation sleeve 6 from the fixing collar 4, and when the limit block 73 is assembled between the two second fixing blocks 77, the installation sleeve 6 drives the limit block 73 to slide into the unlocking groove 79. At this time, there is a certain gap between the installation sleeve 6 and the fixing collar 4, and then the second fixing block 77 leaning against the unlocking groove 79 is pushed toward the unlocking groove 79 by a tool to move toward the unlocking groove 79, and then when the limit block 73 is pushed again, the limit block 73 slides into between the two second fixing blocks 77. The second fixing block 77 is provided with a second inclined slope on the side facing the limiting sleeve 72, and the outer wall of the limiting sleeve 72 is provided with an unlocking groove 79 matching the limit block 73.
[0026] In particular, the mounting assembly 8 includes a positioning sleeve 81, a mounting block 82, a locking block 83 and a limiting spring 86. The end of the positioning sleeve 81 is fixedly connected to the ball head 1, the mounting block 82 is fixedly installed inside the mounting sleeve 6, the locking block 83 is slidably engaged between the positioning sleeve 81 and the mounting block 82, the limiting spring 86 is located on the side of the locking block 83 away from the positioning sleeve 81, the outer wall of the positioning sleeve 81 is provided with a positioning groove, and one side of the outer wall of the locking block 83 is slidably engaged with the inner cavity of the positioning groove, so that the locking block 83 is slidably engaged with the inner cavity of the positioning groove. The mounting sleeve 6 and the ball head 1 can be snap-connected and locked between the positioning sleeve 81 and the mounting block 82. A mounting groove 84 is provided at the bottom of the mounting block 82. The other side of the outer wall of the locking block 83 is slidably sleeved with the inner cavity of the mounting groove 84. The inner cavity of the mounting groove 84 is fixedly connected with a fixing plate 85. The fixing plate 85 and the opposite side of the locking block 83 are fixedly connected with a snap-connecting seat. The end of the limit spring 86 is slidably snap-connected with the snap-connecting seat. The limit spring 86 can ensure the stability of the snap-connection between the locking block 83 and the positioning groove of the outer wall of the positioning sleeve 81.
[0027] Furthermore, an unlocking collar 88 is slidably sleeved in the inner cavity of the mounting sleeve 6, and a connecting rope 87 is fixedly connected to the top of the locking block 83. One end of the connecting rope 87 passes through the fixing plate 85 and the mounting block 82 and is fixedly connected to the unlocking collar 88. Therefore, after the mounting sleeve 6 is separated from the fixing collar 4, the unlocking collar 88 can be pulled to pull the locking block 83 and the positioning sleeve 81 through the connecting rope 87, thereby separating the mounting sleeve 6 from the ball head 1. A guide shaft for guiding the connecting rope 87 is fixedly connected to the top of the inner cavity of the mounting groove 84, and the guide shaft is located at the top of the fixing plate 85. A guide rod 89 is fixedly connected to the side of the unlocking collar 88 close to the mounting block 82. The outer wall of the guide rod 89 is slidably inserted and sleeved with the mounting block 82. The guide rod 89 can improve the stability of the sliding sleeve connection of the unlocking collar 88 inside the mounting sleeve 6.
[0028] Furthermore, an annular groove is provided at one end of the ball head 1, and one end of the outer wall of the mounting sleeve 6 is slidably sleeved with the inner cavity of the annular groove. A groove is provided on the inner wall of the mounting sleeve 6, and a mounting plate 810 is slidably sleeved in the inner cavity of the groove. The outer wall of the mounting plate 810 is fixedly connected to the mounting block 82 and the limit block 73. A through hole is provided at one end of the mounting plate 810, and a positioning rod 811 is slidably sleeved in the inner cavity of the through hole. The outer wall of the positioning rod 811 is slidably sleeved with the mounting sleeve 6, and one end of the outer wall of the positioning rod 811 is slidably sleeved with the ball head 1. The positioning rod 811 can not only improve the stability of the mounting plate 810 being clamped in the inner groove of the mounting sleeve 6, but also improve the stability of the mounting sleeve 6 and the ball head 1.
[0029] like Figure 1 As shown, this embodiment provides a door lock, which includes the above-mentioned ball locking mechanism.
[0030] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A ball lock mechanism, comprising a ball head (1), a docking sleeve (2) and a lock core (3), wherein one end of the docking sleeve (2) is fixedly connected to the ball head (1), and the lock core (3) is rotatably mounted inside the docking sleeve (2); It is characterized in that The outer wall of the docking sleeve (2) is sleeved with a fixing sleeve (4), one side of the fixing sleeve (4) is provided with an inner bolt (5), a mounting sleeve (6) is provided between the fixing sleeve (4) and the ball head (1), one end of the mounting sleeve (6) corresponds to the inner bolt (5), a resetting component (7) for assisting the ball head (1) in rotational resetting is provided inside the mounting sleeve (6) and between the fixing sleeve (4), a mounting component (8) is provided inside the mounting sleeve (6), and the mounting sleeve (6) is fixedly mounted to the ball head (1) via the mounting component (8).
2. A ball locking mechanism according to claim 1, characterized in that: The reset component (7) comprises: A fixed sleeve (71) and a limiting sleeve (72), wherein one end of the fixed sleeve (71) is fixedly connected to the fixed collar (4), and the other end of the fixed sleeve (71) is fixedly connected to the fixed sleeve (71); A limit block (73) and a return spring (74), wherein the limit block (73) is fixedly mounted inside the mounting sleeve (6), and the return spring (74) is located on the side of the limit block (73), and the return spring (74) acts on the mounting sleeve (6) through the limit block (73) to exert a rotational return spring force.
3. A ball locking mechanism according to claim 2, characterized in that: The fixed sleeve (71) and the limiting sleeve (72) are both rotatably sleeved on the outer wall of the docking sleeve (2); a limiting chamber is formed between the outer wall of the fixed sleeve (71), the limiting sleeve (72) and the fixed collar (4); the limiting block (73) is slidably engaged in the interior of the limiting chamber; the return spring (74) is sleeved in the interior of the limiting chamber; and arc rods (75) are symmetrically arranged in the interior of the limiting chamber.
4. A ball locking mechanism according to claim 3, characterized in that: The outer wall of the arc rod (75) is slidably sleeved with the return spring (74); a groove (78) is provided on a side of the limit block (73) facing the fixed collar (4); the outer wall of the arc rod (75) is slidably sleeved with the inner cavity of the groove (78); a first fixing block (76) is fixedly connected to the end of the arc rod (75); the first fixing block (76) is fixedly connected to the outer wall of the fixed sleeve (71); and a second fixing block (77) is symmetrically slidably sleeved on the outer wall of the arc rod (75).
5. A ball locking mechanism according to claim 4, characterized in that: The return spring (74) is located between the second fixing block (77) and the first fixing block (76); a first inclined slope is provided on the side of the end of the limit block (73); a second inclined slope is provided on the side of the second fixing block (77) facing the limit sleeve (72); and an unlocking groove (79) matching the limit block (73) is provided on the outer wall of the limit sleeve (72).
6. A ball locking mechanism according to claim 2, characterized in that: The installation assembly (8) comprises: A positioning sleeve (81), wherein an end of the positioning sleeve (81) is fixedly connected to the ball head (1); A mounting block (82), wherein the mounting block (82) is fixedly mounted inside the mounting sleeve (6); A locking block (83) and a limiting spring (86), wherein the locking block (83) is slidably engaged between the positioning sleeve (81) and the mounting block (82), and the limiting spring (86) is located on a side of the locking block (83) that is away from the positioning sleeve (81).
7. A ball locking mechanism according to claim 6, characterized in that: The outer wall of the positioning sleeve (81) is provided with a positioning groove, one side of the outer wall of the locking block (83) is slidably engaged with the inner cavity of the positioning groove, the bottom of the mounting block (82) is provided with a mounting groove (84), the other side of the outer wall of the locking block (83) is slidably engaged with the inner cavity of the mounting groove (84), the inner cavity of the mounting groove (84) is fixedly connected with a fixing plate (85), the opposite sides of the fixing plate (85) and the locking block (83) are fixedly connected with a clamping seat, and the end of the limit spring (86) is slidably engaged with the clamping seat.
8. A ball locking mechanism according to claim 7, characterized in that: The inner cavity of the mounting sleeve (6) is slidably connected to an unlocking collar (88); the top of the locking block (83) is fixedly connected to a connecting rope (87); one end of the connecting rope (87) passes through the fixing plate (85) and the mounting block (82) and is fixedly connected to the unlocking collar (88); the top of the inner cavity of the mounting groove (84) is fixedly connected to a guide shaft for guiding the connecting rope (87); the guide shaft is located at the top of the fixing plate (85); the unlocking collar (88) is fixedly connected to a guide rod (89) on one side close to the mounting block (82); the outer wall of the guide rod (89) is slidably connected to the mounting block (82).
9. A ball locking mechanism according to claim 6, characterized in that: An annular groove is formed at one end of the ball head (1); one end of the outer wall of the mounting sleeve (6) is slidably sleeved with the inner cavity of the annular groove; a groove is formed at the inner wall of the mounting sleeve (6); a mounting plate (810) is slidably sleeved in the inner cavity of the groove; the outer wall of the mounting plate (810) is fixedly connected to the mounting block (82) and the limit block (73); a through hole is formed at one end of the mounting plate (810); a positioning rod (811) is slidably sleeved in the inner cavity of the through hole; the outer wall of the positioning rod (811) is slidably sleeved with the mounting sleeve (6); and one end of the outer wall of the positioning rod (811) is slidably sleeved with the ball head (1).
10. A door lock, characterized in that: The door lock comprises a ball locking mechanism as described in any one of claims 1-7.