Rope self-locking structure of heaven and earth lock
By designing a self-locking structure in the locking head, and utilizing the self-locking channel and self-locking steel ball to achieve self-locking of the rope, the problem of cumbersome rope connection and easy detachment in the existing technology is solved, providing a simple self-locking solution.
Patent Information
- Application Number
- CN202520115933.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-17
- Publication Date
- 2026-02-06
- Estimated Expiration
- 2035-01-17
AI Technical Summary
The existing rope connection method of the top and bottom lock requires tools and is cumbersome and inconvenient to operate, making it difficult to achieve self-locking. This causes the rope to easily come off, affecting the normal use of the lock.
Design a self-locking structure, including a lock body, a lock tongue, and a self-locking device. The self-locking device has a self-locking channel and a self-locking steel ball. The self-locking steel ball moves up and down by the movement of the rope, thereby achieving self-locking and preventing the rope from coming off.
It achieves a simple self-locking mechanism between the rope and the locking head, requires no tools, prevents the rope from easily coming off, and ensures the locking head works properly.
Smart Images
Figure CN223880921U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of lockset, and particularly relates to a rope self-locking structure of a top and bottom lock head. BACKGROUND
[0002] The security of the anti-theft door is better, and a top and bottom lock head is usually designed at the upper and lower ends of the door, so that violent opening of the door is limited at the three positions, such as a child door with a relatively large size, wherein a middle control bolt is usually installed on the secondary door, and an upper pull hook and a lower pull hook are arranged at the upper and lower ends of the middle control bolt, therefore, the top and bottom lock head is usually arranged at the upper and lower ends of the door, the upper pull hook and the lower pull hook are arranged on the middle control bolt, the two are connected through a rope, and the top and bottom lock head at the upper and lower ends can be opened through the rope, but in order to limit the rope from separating from the lock head and to stabilize the connection, a threaded connector is usually arranged at the end of the rope, and a corresponding thread is arranged at the lower end of the lock tongue, when the connection is performed, the threads of the two need to be aligned, and the threads are connected through continuous rotation, another way of limiting the rope from separating is that a connecting hole is arranged on the lock tongue, a threaded movable hole is horizontally penetrated through the side wall of the lock tongue, the rope is inserted into the connecting hole, a screwdriver is used to insert a screw into the threaded movable hole, and the rope is pressed by the inner end of the screw to limit the rope from falling out, but the two ways need to be operated by using tools in a small space, and the connection is also troublesome, no matter which way is used, the rope and the object need to be aligned and rotated for a long time during the connection, therefore, a top and bottom lock head self-locking structure that can realize self-locking when the rope is connected with the top and bottom lock head and prevent the rope from easily separating is required. SUMMARY
[0003] The utility model discloses a simple structure, can realize self-locking when the rope is connected with the top and bottom lock head, and prevent the rope from easily separating.
[0004] The utility model discloses a simple structure, can realize self-locking when the rope is connected with the top and bottom lock head, and prevent the rope from easily separating.
[0005] A rope self-locking structure of a top and bottom lock head, including lock body and the lock tongue that moves in the lock body, the lock tongue can move up and down in the lock body, the lower end of the lock tongue is equipped with the self -locking device, the self -locking device is equipped with the self -locking passageway that can insert the rope, the self -locking passageway is equipped with a plurality of self -locking steel ball, the self -locking passageway is narrow in the lower, and is wide in the upper, the self -locking steel ball is equipped in the self -locking passageway and can move up and down along the self -locking passageway, when the rope is inserted into the self -locking passageway, the rope makes the self -locking steel ball move up through the upward force and passes through between a plurality of self -locking steel ball, loosens the rope, the self -locking steel ball moves down and clamps the rope, and the rope is limited to separate from the self -locking device, when pulling the rope down, the rope can drive the lock tongue to move down synchronously through the self -locking device, and the lock tongue can complete the separation with the door frame.
[0006] Further, the self-locking device further comprises a connecting shell and a movable rod, the self-locking channel is arranged in the connecting shell, the movable rod is movable in the self-locking channel, a movable channel is arranged through the movable rod, the movable channel is communicated with the self-locking channel, a movable slot is arranged through the movable rod, the self-locking steel ball is arranged in the movable slot, the self-locking steel ball is partially arranged in the movable channel and partially exposed outside the movable rod and abuts against the inner wall of the connecting shell, when the rope is stretched into the movable channel, the top end of the rope drives the self-locking steel ball to move upward, at this time, the movable rod moves upward synchronously with the self-locking steel ball, and the rope can pass through between the self-locking steel balls.
[0007] Further, the movable rod is narrow at the lower end and wide at the upper end, and the movable slot is arranged at the wide upper end of the movable rod.
[0008] Further, the number of the self-locking steel balls is three.
[0009] Further, the connecting shell is further provided with a limiting sleeve and an elastic member, the outer wall of the limiting sleeve is threadedly connected with the inner wall of the connecting shell, one end of the elastic member abuts against the limiting sleeve, and the other end of the elastic member abuts against the upper end of the movable rod, and the elastic member is a return spring.
[0010] Further, the lower end of the lock tongue is provided with a connecting hole, the connecting hole is provided with a clamping portion, and the self-locking device is detachably connected with the clamping portion.
[0011] Further, the clamping portion is internally threaded, the connecting shell is provided with external threads, and the connecting shell is threadedly connected with the internally threaded clamping portion through the external threads.
[0012] Further, the lock tongue further comprises a mounting sleeve, the mounting sleeve is arranged below the lock tongue and is clamped with the lock tongue, the lower end of the mounting sleeve is arranged outside the lock body, and the connecting hole is arranged on the mounting sleeve.
[0013] Further, the upper end of the mounting sleeve is transversely provided with a clamping portion, the inner wall of the lock tongue is provided with a clamping slot, and the upper end of the mounting sleeve is clamped with the clamping slot on the lock tongue through the clamping portion.
[0014] Further, the lock body is further provided with an elastic spring, and the elastic spring is sleeved outside the mounting sleeve.
[0015] Compared with the prior art, the utility model has the following outstanding and beneficial technical effects:
[0016] The utility model relates to a lock head of heaven and earth installed on the door for the self-locking structure of the rope restriction, need not rotate the internal structure through screwdriver and restrict, convenient and fast operation, the utility model is composed of lock body and lock tongue, the lock tongue is movably arranged in the lock body, when the lock tongue extends the lock body, the lock tongue can be connected with the door frame and restricts the door violent opening, the lock body lower part is provided with the self-locking device, when the self-locking device moves downward, the lock tongue also moves synchronously, and the rope passes through the self-locking channel and extends and is locked by the self-locking device, when the rope is pulled by the pull rod of the middle lock head, the rope drives the self-locking device to move, after the self-locking device moves, the lock tongue moves synchronously to complete the separation with the door frame, through setting up the self-locking channel on the self-locking device, a plurality of self-locking steel balls are equipped in the self-locking channel, when the rope extends into the self-locking channel, the top end of the rope can pass through the upward force and make the self-locking steel ball move upward, because the self-locking channel is narrow at the lower part and wide at the upper part, when the self-locking steel ball moves upward, the gap for the rope to pass through is formed between a plurality of self-locking steel balls, when the rope is loosened, the rope slightly falls downward, the self-locking steel ball moves downward, at this moment, the inner wall of a plurality of self-locking steel balls clamps the rope and makes it unable to continue to fall downward, and the self-locking is completed, the utility model can not need other tool auxiliary operation through setting up the self-locking device under the lock body, only needs normal rope extension to carry out the self-locking, prevents the rope separation and leads to the lock head normal use. BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1 It is the perspective view of the utility model.
[0018] Figure 2 It is the front view of the utility model.
[0019] Figure 3 It is the sectional view when the utility model clamps the rope.
[0020] Figure 4 It is the perspective view of the self-locking device of the utility model.
[0021] Figure 5 It is the sectional view of the self-locking device of the utility model.
[0022] Figure 6 It is the explosion view of the self-locking device of the utility model.
[0023] Figure 7 It is the sectional view of the connecting shell of the utility model.
[0024] Figure 8 It is the schematic view when a plurality of self-locking steel balls are installed in the movable slot of the utility model.
[0025] Figure 9 It is the perspective view of the movable rod of the utility model.
[0026] Figure 10Is the connection schematic diagram of the lock tongue and the mounting sleeve.
[0027] The meaning of the reference signs in the figure:
[0028] 1 - lock body; 2 - lock tongue; 3 - connecting hole; 4 - clamping part; 5 - self-locking device; 6 - movable channel;
[0029] 7 - rope; 8 - connecting shell; 9 - movable rod; 10 - self-locking steel ball; 11 - movable groove; 12 - self-locking channel;
[0030] 13 - limiting sleeve; 14 - elastic member; 15 - external thread; 16 - mounting sleeve; 17 - clamping part; 18 - clamping groove;
[0031] 19 - elastic spring. DETAILED DESCRIPTION
[0032] The utility model will be further described in combination with specific embodiments:
[0033] A rope self-locking structure of a top and bottom lock head, comprising a lock body 1 and a lock tongue 2 movably arranged on the lock body 1, the lock tongue 2 can move up and down in the lock body 1, the lower end of the lock tongue 2 is provided with a self-locking device 5, the self-locking device 5 is provided with a self-locking channel 12 into which a rope 7 can be inserted, a plurality of self-locking steel balls 10 are arranged in the self-locking channel 12, the self-locking channel 12 is narrow at the bottom and wide at the top, the self-locking steel balls 10 are arranged in the self-locking channel 12 and can move up and down along the self-locking channel 12, when the rope 7 extends into the self-locking channel 12, the rope 7 moves the self-locking steel balls 10 upward by upward force and passes through between the self-locking steel balls 10, the rope 7 is loosened, the self-locking steel balls 10 move downward and clamp the rope 7, the rope 7 is limited to separate from the self-locking device 5, at this time, the rope 7 is pulled downward, the rope 7 can drive the lock tongue 2 to move downward synchronously through the self-locking device 5, and the lock tongue 2 can complete separation from the door frame.
[0034] The utility model relates to a top and bottom lock head installed on a door, a self-locking structure for limiting a rope 7, which does not need to rotate and limit the internal structure by a screwdriver, and is convenient and fast to operate, the utility model is composed of a lock body 1 and a lock tongue 2, the lock tongue 2 is movably arranged in the lock body 1, when the lock tongue 2 extends out of the lock body 1, the lock tongue 2 can be connected with a door frame and limit the violent opening of the door, a self-locking device 5 is arranged below the lock body 1, when the self-locking device 5 moves downward, the lock tongue 2 also moves synchronously, and when the rope 7 is pulled by the pull rod of the middle lock head after extending into and being locked by the self-locking device 5 through a self-locking channel 12, the rope 7 drives the self-locking device 5 to move, after the self-locking device 5 moves, the lock tongue 2 moves synchronously to complete the separation from the door frame, the self-locking channel 12 is arranged on the self-locking device 5, a plurality of self-locking steel balls 10 are arranged in the self-locking channel 12, when the rope 7 extends into the self-locking channel 12, the top end of the rope 7 can move the self-locking steel balls 10 upward through the upward force, because the self-locking channel 12 is narrow at the bottom and wide at the top, after the self-locking steel balls 10 move upward, gaps for the rope 7 to pass through are formed between the plurality of self-locking steel balls 10, after the rope 7 is loosened, the rope slightly falls downward, the self-locking steel balls 10 move downward, at this time, the inner wall of the plurality of self-locking steel balls 10 clamps the rope 7 so that it cannot continue to move downward, and the self-locking is completed, the utility model can be operated without other tools through the self-locking device 5 arranged below the lock body 1, and only needs to extend the rope 7 normally to perform self-locking, which prevents the rope 7 from separating to cause the lock head to be unable to be normally used.
[0035] Preferably, the self-locking device 5 further comprises a connecting shell 8 and a movable rod 9, the self-locking channel 12 is arranged in the connecting shell 8, the movable rod 9 is movable in the self-locking channel 12, a movable channel 6 is arranged through the movable rod 9, the movable channel 6 is communicated with the self-locking channel 12, a movable slot 11 is arranged through the movable rod 9, the self-locking steel ball 10 is arranged in the movable slot 11, the self-locking steel ball 10 is partially arranged in the movable channel 6 and partially exposed outside the movable rod 9 and abuts against the inner wall of the connecting shell 8, when the rope 7 is stretched into the movable channel 6, the top end of the rope 7 drives the self-locking steel ball 10 to move upwards, at this time, the movable rod 9 moves upwards synchronously with the self-locking steel ball 10, the rope 7 can pass through the self-locking steel ball 10, the self-locking device 5 further comprises the connecting shell 8 and the movable rod 9, the movable rod 9 is movable upwards and downwards in the self-locking channel 12 of the connecting shell 8, the movable slot 11 is arranged on the movable rod 9, the self-locking steel ball 10 is arranged in the movable slot 11, at this time, the self-locking steel ball 10 abuts against the inner wall of the connecting shell 8, when the rope 7 moves upwards and lifts the self-locking steel ball 10, the self-locking steel ball 10 moves upwards synchronously, at this time, the distance between the movable rod 9 and the inner wall of the connecting shell 8 is widened, the self-locking steel ball 10 can be stretched outwards, at this time, the space between the self-locking steel ball 10 and the movable rod 9 is increased, the rope 7 can be stretched in, at this time, the hand is released, the rope 7 moves downwards, the movable rod 9 moves downwards and clamps the rope 7 through the self-locking steel ball 10, at this time, the rope cannot fall from the movable channel 6 alone, thereby the self-locking is completed, the self-locking channel 12 with the narrow lower part and the wide upper part is arranged in the connecting shell 8, thereby the self-locking function of the self-locking steel ball 10 and the movable rod 9 is realized, and the external tool is not needed to cooperate with locking.
[0036] Preferably, the movable rod 9 is narrow at the lower part and wide at the upper part, the movable slot 11 is arranged at the wide upper part of the movable rod 9, the movable rod 9 is prevented from falling out of the connecting shell 8, and the cooperation between the movable rod 9 and the connecting shell 8 is stable.
[0037] Preferably, the number of the self-locking steel balls 10 is three, the self-locking steel ball 10 can clamp the rope 7 from multiple directions, the friction force is increased, and the single self-locking steel ball 10 is prevented from clamping the rope 7 tightly.
[0038] Preferably, the connecting shell 8 is further provided with a limiting sleeve 13 and an elastic member 14, the outer wall of the limiting sleeve 13 is threadedly connected with the inner wall of the connecting shell 8, one end of the elastic member 14 abuts against the limiting sleeve 13 and the other end abuts against the upper end of the movable rod 9, the elastic member 14 is a reset spring, the movable rod 9 can be reset automatically, when the movable rod 9 is displaced by the downward pressure, the reset spring is compressed, once the pressure disappears, the elastic restoring force of the spring pushes the movable rod 9 upwards to the original position, and the reset spring can play a buffering role.
[0039] Preferably, the lower end of the lock tongue 2 is provided with a connecting hole 3, the connecting hole 3 is provided with a clamping part 4, the self-locking device 5 is detachably connected with the clamping part 4, the detachable connection facilitates replacement, and the self-locking steel ball 10 cannot be replaced due to long-term wear.
[0040] Preferably, the clamping part 4 is internally threaded, the connecting shell 8 is provided with external threads 15, and the connecting shell 8 is threadedly connected with the internally threaded clamping part 4 through the external threads 15, the utility model realizes fixation through thread connection, so that the two can move synchronously, installation is convenient, and disassembly is rapid.
[0041] Preferably, the lock tongue 2 further comprises a mounting sleeve 16, the mounting sleeve 16 is arranged below the lock tongue 2 and is clamped with the lock tongue 2, the lower end of the mounting sleeve 16 extends out of the lock body 1, the connecting hole 3 is arranged on the mounting sleeve 16, the upper end of the mounting sleeve 16 is transversely provided with a clamping part 17, the inner wall of the lock tongue 2 is provided with a clamping groove 18, the upper end of the mounting sleeve 16 is clamped with the clamping groove 18 on the lock tongue 2 through the clamping part 17, the mounting sleeve 16 is prevented from falling, and meanwhile, replacement, disassembly and cleaning are facilitated.
[0042] Preferably, the lock body 1 is further provided with an elastic spring 19, and the elastic spring 19 is sleeved outside the mounting sleeve 16.
[0043] The above embodiment is only a preferred embodiment of the utility model, and does not limit the protection scope of the utility model, so that: equivalent changes made according to the structure, shape and principle of the utility model should be covered in the protection scope of the utility model.
Claims
1. A cable self-locking structure of a mortise lock head, comprising a lock body (1) and a lock bolt (2) movably arranged on the lock body (1), characterized in that, The lock tongue (2) can move up and down in the lock body (1), the lower end of the lock tongue (2) is provided with a self-locking device (5), the self-locking device (5) is provided with a self-locking channel (12) into which the rope (7) can be inserted, a plurality of self-locking steel balls (10) are arranged in the self-locking channel (12), the self-locking channel (12) is narrow at the lower end and wide at the upper end, the self-locking steel balls (10) are arranged in the self-locking channel (12) and can move up and down in the self-locking channel (12), when the rope (7) extends into the self-locking channel (12), the rope (7) moves the self-locking steel balls (10) upward by the upward force and passes through the plurality of self-locking steel balls (10), the rope (7) is loosened, the self-locking steel balls (10) move downward and clamp the rope (7), the rope (7) is limited to be separated from the self-locking device (5), at this time, the rope (7) can drive the lock tongue (2) to move downward synchronously through the self-locking device (5), and the lock tongue (2) can be separated from the door frame.
2. The cable self-locking structure of a mortise lock according to claim 1, wherein: The self-locking device (5) further comprises a connecting shell (8) and a movable rod (9), the self-locking channel (12) is arranged in the connecting shell (8), the movable rod (9) can move in the self-locking channel (12), the movable rod (9) is provided with a movable channel (6) penetrating therethrough, the movable channel (6) is communicated with the self-locking channel (12), the movable rod (9) is provided with a movable slot (11) penetrating therethrough, the self-locking steel balls (10) are arranged in the movable slot (11), the self-locking steel balls (10) are partially arranged in the movable channel (6) and partially exposed outside the movable rod (9) and abut against the inner wall of the connecting shell (8), when the rope (7) extends into the movable channel (6), the top end of the rope (7) drives the self-locking steel balls (10) to move upward, at this time, the movable rod (9) moves upward synchronously with the self-locking steel balls (10), and the rope (7) can pass through the plurality of self-locking steel balls (10).
3. The cable self-locking structure of a mortise lock according to claim 2, characterized in that: The movable rod (9) is narrow at the lower end and wide at the upper end, and the movable slot (11) is arranged at the wide upper end of the movable rod (9).
4. The cable self-locking structure of a mortise lock according to claim 3, wherein: The number of the self-locking steel balls (10) is three.
5. The cable self-locking structure of a mortise lock according to claim 3, wherein: The connecting shell (8) is further provided with a limiting sleeve (13) and an elastic member (14), the outer wall of the limiting sleeve (13) is threadedly connected with the inner wall of the connecting shell (8), one end of the elastic member (14) abuts against the limiting sleeve (13), and the other end of the elastic member (14) abuts against the upper end of the movable rod (9), and the elastic member (14) is a return spring.
6. A rope self-locking structure of a mortise lock head according to any one of claims 2-5, characterized in that: The lower end of the lock tongue (2) is provided with a connecting hole (3), the connecting hole (3) is provided with a clamping portion (4), and the self-locking device (5) and the clamping portion (4) are detachably connected.
7. The cable self-locking structure of a mortise lock according to claim 6, wherein: The clamping portion (4) is internally threaded, the connecting shell (8) is provided with external threads (15), and the connecting shell (8) is threadedly connected with the internally threaded clamping portion (4) through the external threads (15).
8. The cable self-locking structure of a mortise lock according to claim 6, wherein: The lock tongue (2) further comprises a mounting sleeve (16), the mounting sleeve (16) is arranged below the lock tongue (2) and is clamped with the lock tongue (2), the lower end of the mounting sleeve (16) extends out of the lock body (1), and the connecting hole (3) is arranged on the mounting sleeve (16).
9. The cable self-locking structure of a mortise lock according to claim 8, wherein: The upper end of the mounting sleeve (16) is transversely provided with a clamping part (17), and the inner wall of the lock tongue (2) is provided with a clamping groove (18), and the upper end of the mounting sleeve (16) is clamped with the clamping groove (18) on the lock tongue (2) through the clamping part (17).
10. The cable self-locking structure of a mortise lock according to claim 9, wherein: The lock body (1) is further provided with an elastic spring (19), and the elastic spring (19) is sleeved on the outside of the mounting sleeve (16).