Top and bottom lock head

Abstract

The utility model belongs to the technical field of locks, and particularly relates to a heaven and earth lock which comprises a lock body and a lock tongue movably arranged on the lock body, the lock tongue can move up and down in the lock body, a mounting hole is formed in the lock tongue from bottom to top, and a rope capable of extending upwards from the lower end of the mounting hole is arranged in the mounting hole. A bolt hole communicated with the mounting hole is formed in the side edge of the mounting hole, a bolt screw is arranged in the bolt hole, the bolt screw can move into the mounting hole along the bolt hole by rotating the bolt screw, so that the bolt screw abuts against the rope and extrudes the rope, the rope and the spring bolt are relatively fixed, the spring bolt can be driven to synchronously move by driving the rope, and an elastic piece is arranged in the lock body. According to the connecting mode, the structure is simple, a threaded connector does not need to be installed on the rope, and the rope extends into the spring bolt to be prevented from being disengaged through other modes.

Description

Technical Field

[0001] The utility model belongs to the technical field of locks, in particular to a top and bottom lock. Background Art

[0002] The security door is a basic door equipped in every household in the modern world. The lock body inside the door can better prevent the lock from being lifted by criminals, so it is purchased and used by the public. The existing door usually has a lock tongue installed in the middle of the door. It extends out of the lock body and is stuck in the door frame to restrict the door from opening. However, the existing lock tongue is basically small, and the sizes of doors vary. Some larger doors only rely on the small lock tongue in the middle to restrict the door from opening, which is easy to be pulled open by criminals with force or with a machine. Therefore, some larger doors are usually equipped with a sky lock at the upper and lower ends of the door, and an upper pull rod and a lower pull rod are set on the lock head at the middle end. The sky lock heads at the upper and lower ends are connected by ropes, so that the sky lock heads at the upper and lower ends can be driven by controlling the lock head in the middle. The lock head opens, this method is not only convenient but also multiple lock heads restrict the door from opening at the top, middle and bottom of the door at the same time, thereby enhancing the connection and stability of the door and the door frame. However, the existing method of connecting the rope to the upper and lower lock tongues is usually to set a threaded connector at the end of the rope and set a thread at the tail of the upper and lower ends, and connect the two by thread. This method is more difficult to install the threaded connector at the end of the rope, and the threaded connector needs to be fixed to the rope by other stable connection methods. The threaded connector is separated from the rope, and the product is also troublesome to install, connect and disassemble. Therefore, a connection method different from this one is needed. The rope does not need to be installed with a threaded connector, and the rope can be inserted into the lock tongue to prevent the rope from being separated by other means. Summary of the Invention

[0003] The utility model aims to provide a connection method with a simple structure, which does not require a threaded connector to be installed on the rope and can be inserted into a lock tongue to prevent the rope from being separated by other means.

[0004] The purpose of this utility model is achieved in this way:

[0005] A top and bottom lock comprises a lock body and a lock tongue movably arranged on the lock body, wherein the lock tongue can move up and down in the lock body, a mounting hole from bottom to top is provided in the lock tongue, a rope is provided in the mounting hole and can extend upward from the lower end of the mounting hole, a latch hole communicating with the mounting hole is provided on the side of the mounting hole, a latch screw is provided in the latch hole, and the latch screw can be rotated to move along the latch hole into the mounting hole so that it abuts against the rope and squeezes the rope, thereby fixing the rope and the lock tongue relatively, and driving the rope can drive the lock tongue to move synchronously, and an elastic member is provided in the lock body.

[0006] Furthermore, there are two latch holes, which are respectively arranged on the left and right sides of the lock tongue. The inner end of the left latch hole is connected to the mounting hole. By rotating the left latch screw, the rope can be squeezed into the right latch hole along the left latch hole.

[0007] Furthermore, the lower end of the mounting hole is chamfered.

[0008] Furthermore, the lock tongue also includes a mounting sleeve, which is arranged below the lock tongue and is engaged with the lock tongue. The elastic member is sleeved outside the mounting sleeve, and the elastic member is a spring.

[0009] Furthermore, the lower end of the mounting sleeve extends out from the lower end of the lock head, the upper end of the mounting sleeve is laterally protruded with a clamping portion, the inner wall of the lock tongue is provided with a clamping groove, and the upper end of the mounting sleeve is clamped with the clamping groove on the lock tongue through the clamping portion.

[0010] Furthermore, the lower end of the mounting sleeve is also provided with an internal thread.

[0011] Furthermore, the lock body is provided with a lock seat, the lock seat is provided with a screw hole, a screw is provided in the screw hole, and the lock body is fixed to the lock seat by the screw.

[0012] Compared with the prior art, the present invention has the following outstanding and beneficial technical effects:

[0013] The utility model is a world lock connected to the middle end of the door lock. The previous connection method is basically a threaded connector installed at the end of a rope, which is fixed by threading with the bottom end of the upper world lock so that it can move synchronously with the rope to the middle end of the lock. The utility model adopts a new connection method, which is not limited to a single method. The lock tongue moves up and down in the lock body. A mounting hole from bottom to top is opened in the lock tongue. When installing, the worker inserts the rope from the mounting hole without extending the lock tongue. When the rope is inserted into the hole where the bolt is located, it is turned by an electric tool or a screwdriver. The latch screw moves inward along the latch hole until it contacts the rope. At this time, the latch screw is rotated, and the inner end of the latch screw squeezes the rope until the latch screw cannot be rotated and the rope cannot fall out of the mounting hole. At this time, the lock tongue can move up and down synchronously with the rope through the latch screw. The top of the lock tongue is squeezed by the door frame and also moves downward synchronously. An elastic part is provided in the lock body, which can actively help the lock tongue return to its original position. The utility model brings a novel connection method. There is no need to carry an additional screw connector to install on the rope, which is convenient for any inexperienced person to install independently. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional diagram of the present utility model.

[0015] Figure 2 This is a cross-sectional view of the utility model

[0016] Figure 3 This is the explosion diagram of the utility model

[0017] Figure 4 This is the front view of the utility model

[0018] Figure 5 This is a side view of the utility model

[0019] Figure 6 It is a stereoscopic diagram of the lock tongue and the mounting sleeve of the utility model.

[0020] The meaning of the numbers in the figure:

[0021] 1-lock body; 2-lock tongue; 4-rope; 5-mounting hole; 6-latch hole; 7-latch screw; 8-elastic member; 9-chamfer; 10-mounting sleeve; 11-clamping part; 12-clamping groove; 13-internal thread; 14-lock seat. DETAILED DESCRIPTION

[0022] The present invention will be further described below in conjunction with specific embodiments:

[0023] A top and bottom lock comprises a lock body 1 and a lock tongue 2 movably provided on the lock body 1. The lock tongue 2 can move up and down in the lock body 1. A mounting hole 5 is provided in the lock tongue 2 from bottom to top. A rope 4 is provided in the mounting hole 5 and can extend upward from the lower end of the mounting hole 5. A latch hole 6 communicating with the mounting hole 5 is provided on the side of the mounting hole 5. A latch screw 7 is provided in the latch hole 6. The latch screw 7 can be rotated to move along the latch hole 6 toward the mounting hole 5, so that it abuts against the rope 4 and squeezes the rope 4, thereby fixing the rope 4 and the lock tongue 2 relatively. Driving the rope 4 can drive the lock tongue 2 to move synchronously. An elastic member 8 is provided in the lock body 1.

[0024] The utility model is a world lock connected to the middle end of the door lock. The previous connection method is basically a threaded connector installed at the end of a rope 4, which is fixed by threading with the bottom end of the upper world lock so that it can move synchronously with the rope 4 to the middle end of the lock. The utility model adopts a new connection method, which is not limited to a single method. The lock tongue 2 moves up and down in the lock body 1. A mounting hole 5 from bottom to top is opened in the lock tongue 2. When the worker installs it, he inserts the rope 4 into the mounting hole 5 without extending the lock tongue 2. When the rope 4 is inserted into the bolt hole 6, the bolt is turned by an electric tool or a screwdriver. The screw 7 and the latch screw 7 move inwardly along the latch hole 6 until they are against the rope 4. At this time, the latch screw 7 is rotated, and the inner end of the latch screw 7 will squeeze the rope 4 until the latch screw 7 cannot be rotated and the rope 4 cannot fall out of the mounting hole 5. At this time, the lock tongue 2 can be driven up and down synchronously with the rope 4 through the latch screw 7. The top of the lock tongue 2 is squeezed by the door frame and also moves downward synchronously. An elastic member 8 is provided in the lock body 1, which can actively help the lock tongue 2 return to its original position. The utility model brings a novel connection method. There is no need to carry an additional screw connector to install on the rope 4, which is convenient for any inexperienced person to install independently.

[0025] Preferably, there are two latch holes 6, which are respectively arranged on the left and right sides of the lock tongue 2. The inner end of the left latch hole 6 is connected to the mounting hole 5. By rotating the left latch screw 7, the rope 4 can be squeezed into the right latch hole 6 along the left latch hole 6. The user can squeeze the rope 4 into the inner wall of the mounting hole 5 by manipulating the latch screw 7 on one side to move inward, or squeeze the rope 4 into the latch hole 6 on the other side. The user can also move the latch screws 7 in the latch holes 6 on both sides inward at the same time to clamp the rope 4 with forces on both sides. In addition, the utility model can also support the rope 4 inserted into the mounting hole 5 when the latch screw 7 moves inward.

[0026] Preferably, the lower end of the mounting hole 5 is further provided with a chamfer 9, and the large diameter opening facilitates the insertion of the rope 4.

[0027] Preferably, the lock tongue 2 also includes a mounting sleeve 10, which is arranged below the lock tongue 2 and is engaged with the lock tongue 2. The elastic member 8 is sleeved outside the mounting sleeve 10. The elastic member 8 is a spring. The mounting sleeve 10 can be moved downward synchronously. When resetting, the elastic member 8 can push the lock tongue 2 upward and synchronously drive the mounting sleeve 10 to reset.

[0028] Preferably, the lower end of the mounting sleeve 10 extends out from the lower end of the lock head, and a clamping portion 11 is laterally protruded from the upper end of the mounting sleeve 10. A clamping groove 12 is provided on the inner wall of the lock tongue 2. The upper end of the mounting sleeve 10 is clamped with the clamping groove 12 on the lock tongue 2 through the clamping portion 11 to prevent the mounting sleeve 10 from falling off. The clamping portion 11 is clamped with the clamping groove 12 to prevent the lock tongue 2 from being physically squeezed.

[0029] Preferably, the lower end of the mounting sleeve 10 is also provided with an internal thread 13. While ensuring the design of the present utility model, the manufacturer can also add the function of connecting the external thread and the screw connector according to the needs of the tool user. It can be used alone or in combination. Using both can increase stability and connectivity.

[0030] Preferably, the lock body 1 is further provided with a lock seat 14, the lock seat 14 is provided with a screw hole, and a screw is provided in the screw hole. The lock body 1 is fixed to the lock seat 14 by the screws to enhance the stability and connectivity with the door. The lock body 1 is installed on the lock seat 14 by the screws, and the lock seat 14 is also installed in the door by the screws, so that the lock body 1 will not easily detach from the door, and the screw connection is convenient for disassembly and replacement.

[0031] The above embodiments are only preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. A top and bottom lock, comprising a lock body (1) and a lock tongue (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); a mounting hole (5) from bottom to top is provided in the lock tongue (2); a rope (4) is provided in the mounting hole (5) and can be extended upward from the lower end of the mounting hole (5); a latch hole (6) is provided on the side of the mounting hole (5) and is communicated with the mounting hole (5); a latch screw (7) is provided in the latch hole (6); the latch screw (7) can be rotated to move along the latch hole (6) into the mounting hole (5), so that it abuts against the rope (4) and squeezes the rope (4), thereby fixing the rope (4) and the lock tongue (2) relatively; driving the rope (4) can drive the lock tongue (2) to move synchronously; an elastic member (8) is provided in the lock body (1).

2. The top and bottom lock according to claim 1, characterized in that: There are two latch holes (6), which are respectively arranged on the left and right sides of the lock tongue (2). The inner end of the left latch hole (6) is connected to the mounting hole (5). By rotating the left latch screw (7), the rope (4) can be squeezed into the right latch hole (6) along the left latch hole (6).

3. The top and bottom lock according to claim 2, characterized in that: The lower end of the mounting hole (5) is further provided with a chamfer (9).

4. A top and bottom lock according to any one of claims 1 to 3, characterized in that: The lock tongue (2) also includes a mounting sleeve (10), which is arranged below the lock tongue (2) and is engaged with the lock tongue (2), and the elastic member (8) is sleeved outside the mounting sleeve (10), and the elastic member (8) is a spring.

5. The top and bottom lock according to claim 4, characterized in that: The lower end of the mounting sleeve (10) extends out from the lower end of the lock head, the upper end of the mounting sleeve (10) is laterally protruded with a clamping portion (11), the inner wall of the lock tongue (2) is provided with a clamping groove (12), and the upper end of the mounting sleeve (10) is clamped with the clamping groove (12) on the lock tongue (2) through the clamping portion (11).

6. The top and bottom lock according to claim 5, characterized in that: The lower end of the mounting sleeve (10) is further provided with an internal thread (13).

7. The top and bottom lock according to claim 1, characterized in that: The lock body (1) is further provided with a lock seat (14), the lock seat (14) is provided with a screw hole, a screw is provided in the screw hole, and the lock body (1) is fixed to the lock seat (14) by the screw.

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