Lock body reversing mechanism

Abstract

The lock body reversing mechanism comprises a lock body lower shell, the top and the rear side of the lock body lower shell are open, a lock body upper shell is fixed to the top of the lock body lower shell in a threaded mode, a guide plate is fixedly installed on the rear side of the lock body lower shell, a spring bolt hole is formed in the rear side of the guide plate, and a spring bolt is movably arranged in the spring bolt hole in a sleeved mode. The front side of the spring bolt extends into the lock body lower shell and is slidably mounted on the inner wall of the bottom of the lock body lower shell, a shaft rod is fixedly embedded in the front side of the spring bolt, the shaft rod is fixedly sleeved with a sliding block slidably mounted on the inner wall of the bottom of the lock body lower shell, and a U-shaped block located on the rear side of the sliding block is fixedly mounted on the inner wall of the bottom of the lock body lower shell. Through the arrangement of a series of structures, reversing adjustment can be carried out on the spring bolt in a simple shifting mode, personnel operation is facilitated, the spring bolt can be effectively limited after adjustment, the situation that all the spring bolt pops out backwards is avoided, a lock can be normally opened and closed, and the use stability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lock bodies, in particular to a lock body commutation mechanism. Background Art

[0002] With the popularization of intelligent locks, in different installation environments, there are left-opening doors and right-opening doors, which are further divided into in-swing doors and out-swing doors. During the process of opening and closing the door, due to the need for guidance when the locking tongue of the lock body collides with the door frame, the opening direction of the door will affect the orientation of the locking tongue of the lock body. Therefore, for a lock body that cannot be commutated, it needs to be customized and produced according to requirements before leaving the factory, which prolongs the production cycle. Later, developers developed a toggle paddle to retract the locking tongue into the lock body for commutation. However, due to the limited operating space of the locking tongue, this commutation is inconvenient; there is also a solution to push the locking tongue out of the guide plate to commutate by overcoming the elastic force of the compression spring. This solution has a risk that the locking tongue collides with the limit piece and runs out of the lock body due to inertia and gets stuck on the guide plate, affecting unlocking. Considering the above situations, the present application proposes a lock body commutation mechanism. Content of the Utility Model

[0003] The purpose of the utility model is to solve the deficiencies existing in the prior art, and a lock body commutation mechanism is proposed.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A lock body commutation mechanism includes a lock body lower shell with openings at the top and the rear. The lock body upper shell is fixedly screwed to the top of the lock body lower shell. A guide plate is fixedly installed at the rear of the lock body lower shell. A locking tongue hole is formed at the rear of the guide plate. A locking tongue is movably sleeved in the locking tongue hole. The front side of the locking tongue extends into the lock body lower shell and is slidably installed on its bottom inner wall. A shaft rod is fixedly embedded at the front side of the locking tongue. A sliding block that is slidably installed on the bottom inner wall of the lock body lower shell is fixedly sleeved on the shaft rod. A U-shaped block located behind the sliding block is fixedly installed on the bottom inner wall of the lock body lower shell. The U-shaped block is movably sleeved on the shaft rod. A compression spring in a compressed state is fixedly connected between the front side of the locking tongue and the rear side of the U-shaped block. The compression spring is movably sleeved on the shaft rod. The setting of the compression spring can drive the shaft rod and the locking tongue to move backward when the restriction on the sliding block is released. A limiting mechanism is movably sleeved on the shaft rod. The limiting mechanism is located between the sliding block and the U-shaped block and is used to restrict the sliding block. The limiting mechanism is installed on the bottom inner wall of the lock body lower shell. A positioning shaft is movably embedded in the bottom inner wall of the lock body lower shell. The lock body upper shell is movably sleeved on the positioning shaft. An installation piece is sleeved on the positioning shaft. A convex structure is provided on the right side of the installation piece and is in movable contact with the left side of the shaft rod.

[0006] Preferably, the limit mechanism includes a limit block movably sleeved on the shaft rod, a limit protrusion is integrally provided on the front bottom of the limit block, the front side of the limit protrusion is movably contacted with the rear side of the sliding block, the sliding block is limited by the limit protrusion, the rear side of the limit block is movably contacted with the front side of the U-shaped block, a lever is integrally provided on the left side of the limit block, the limit block can be moved by the lever, the lever is slidably installed with the bottom inner wall of the lower shell of the lock body and the bottom of the upper shell of the lock body, a T-shaped mounting shaft is fixedly connected to the bottom inner wall of the lower shell of the lock body, the T-shaped mounting shaft and the movable sleeve on the lever are provided with the same torsion spring, which drives the lever to move right and reset when the torsion spring is in a torsional compression state and releases the torsional force.

[0007] Preferably, a first sliding hole is provided on the bottom inner wall of the lower shell of the lock body, and a first protruding block slidably mounted with the first sliding hole is provided at the bottom of the sliding block, and the first protruding block and the first sliding hole cooperate to guide the sliding block forward and backward.

[0008] Preferably, a second sliding hole is provided on the bottom inner wall of the lower shell of the lock body, and a third sliding hole is provided on the top of the upper shell of the lock body, the front inner wall and the rear inner wall of the second sliding hole are in sliding contact with the front and rear sides of the lever respectively, the top end of the lever passes through the third sliding hole and extends to the top of the upper shell of the lock body, the front and rear sides of the lever are in sliding contact with the front inner wall and the rear inner wall of the third sliding hole respectively, a through hole is provided on the front side of the limit block, the top inner wall and the bottom inner wall of the through hole are in movably contact with the top and bottom of the shaft rod respectively, the through hole is used for the shaft rod to pass through, and can provide a lateral movement distance for the limit block.

[0009] Preferably, the left and right widths of the front portion of the lock tongue are smaller than the left and right widths of the rear portion, the inner wall of the lock tongue hole is in movably contact with the outer side of the lock tongue, the distance between the top inner wall and the bottom inner wall of the lock tongue hole is smaller than the distance between the left and right sides of the rear portion of the lock tongue, so that the rear portion of the lock tongue cannot rotate when in the lock tongue hole, thereby limiting the steering of the lock tongue, and the distance between the left and right sides of the front portion of the lock tongue and the distance between the top and the bottom are smaller than the distance between the top inner wall and the bottom inner wall of the lock tongue hole, so that the front portion of the lock tongue can rotate when in the lock tongue hole.

[0010] Preferably, a second protruding block is integrally provided at the bottom of the lock tongue, and a sliding groove with an opening on the rear side is provided on the bottom inner wall of the lower shell of the lock body, and the inner walls on both sides of the sliding groove are in sliding contact with the two sides of the second protruding block respectively, and the sliding groove and the second protruding block cooperate to guide the lock tongue forward and backward.

[0011] Compared with the existing technology, the beneficial effects of the utility model are:

[0012] 1. Through the coordination of the limit mechanism, the sliding block and the compression spring, the lock tongue can be quickly moved out of the lock tongue hole by simply turning it to adjust the direction of the lock tongue, and the lock tongue can be restricted after adjustment to prevent it from popping out during use;

[0013] Through a series of structural settings, the utility model can adjust the reversing of the lock tongue by simply toggling, which is convenient for personnel operation, and can effectively limit the lock tongue after adjustment, so that the lock tongue will not fully pop out backward, and the lock can be normally locked and unlocked, improving the use stability. Description of the Drawings

[0014] Figure 1 It is a top view structural schematic diagram of a lock body reversing mechanism proposed by the utility model;

[0015] Figure 2 It is a top view structural schematic diagram of the unmounted state of the upper lock body shell of a lock body reversing mechanism proposed by the utility model;

[0016] Figure 3 is Figure 2 a structural schematic diagram of the state where the restriction on the sliding block is released in

[0017] Figure 4 It is a three-dimensional structural schematic diagram of the connected state of the lower lock body shell, the limiting mechanism and the limiting plate of a lock body reversing mechanism proposed by the utility model;

[0018] Figure 5 It is an exploded view of a lock body reversing mechanism proposed by the utility model.

[0019] In the figure: 1, lock tongue; 2, guide plate; 201, lock tongue hole; 3, upper lock body shell; 4, lower lock body shell; 5, compression spring; 6, limiting block; 601, limiting convex block; 602, toggle lever; 603, through hole; 7, sliding block; 701, first raised block; 8, torsion spring; 9, mounting piece; 901, raised structure; 10, first sliding hole; 11, shaft rod; 12, positioning shaft; 13, T-shaped mounting shaft; 14, second sliding hole; 15, U-shaped block; 16, sliding groove. Detailed Embodiment

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0021] Refer to Figures 1-5, a lock body commutation mechanism, including a lower lock body 4 with openings at both the top and the rear. A lock body upper shell 3 is fixed to the top of the lower lock body 4 by threading. A guide plate 2 is fixedly installed at the rear of the lower lock body 4. A lock tongue hole 201 is provided at the rear of the guide plate 2. A lock tongue 1 is movably sleeved in the lock tongue hole 201. The front side of the lock tongue 1 extends into the lower lock body 4 and is slidably installed on its bottom inner wall. The left and right width of the front part of the lock tongue 1 is smaller than that of the rear part. The inner wall of the lock tongue hole 201 is in movable contact with the outer side of the lock tongue 1. The distance between the top inner wall and the bottom inner wall of the lock tongue hole 201 is smaller than the distance between the left and right sides of the rear part of the lock tongue 1, so that the rear part of the lock tongue 1 cannot rotate when it is in the lock tongue hole 201. The distance between the left and right sides and the distance between the top and the bottom of the front part of the lock tongue 1 are both smaller than the distance between the top inner wall and the bottom inner wall of the lock tongue hole 201, so that the front part of the lock tongue 1 can rotate when it is in the lock tongue hole 201. A second raised block is integrally provided at the bottom of the lock tongue 1. A chute 16 with an opening at the rear is provided on the bottom inner wall of the lower lock body 4. The inner walls on both sides of the chute 16 are respectively in sliding contact with both sides of the second raised block. The chute 16 and the second raised block cooperate to guide the lock tongue 1 forward and backward. A shaft rod 11 is fixedly installed by embedding on the front side of the lock tongue 1. A sliding block 7 that is slidably installed on the bottom inner wall of the lower lock body 4 is fixedly sleeved on the shaft rod 11. A first sliding hole 10 is provided on the bottom inner wall of the lower lock body 4. A first raised block 701 that is slidably installed in the first sliding hole 10 is provided at the bottom of the sliding block 7. The first raised block 701 and the first sliding hole 10 cooperate to guide the sliding block 7 forward and backward. A U-shaped block 15 located behind the sliding block 7 is fixedly installed on the bottom inner wall of the lower lock body 4. The U-shaped block 15 is movably sleeved on the shaft rod 11. A compression spring 5 in a compressed state is fixedly connected between the front side of the lock tongue 1 and the rear side of the U-shaped block 15. The compression spring 5 is movably sleeved on the shaft rod 11. The setting of the compression spring 5 can drive the shaft rod 11 and the lock tongue 1 to move backward when the restriction on the sliding block 7 is released;

[0022] A limit mechanism is movably sleeved on the shaft rod 11, and the limit mechanism is located between the sliding block 7 and the U-shaped block 15. The limit mechanism is installed on the bottom inner wall of the lower shell 4 of the lock body, and the limit mechanism includes a limit block 6 movably sleeved on the shaft rod 11, wherein a through hole 603 is opened on the front side of the limit block 6, and the top inner wall and the bottom inner wall of the through hole 603 are respectively in movable contact with the top and bottom of the shaft rod 11, and the through hole 603 is used for the shaft rod 11 to pass through, and can provide a lateral movement distance for the limit block 6, and a limiting protrusion 601 is integrally provided at the bottom of the front side of the limit block 6, and the front side of the limiting protrusion 601 is in movable contact with the rear side of the sliding block 7, and the sliding block 7 is limited by the limiting protrusion 601, and the rear side of the limiting block 6 is in movable contact with the front side of the U-shaped block 15, and a lever 602 is integrally provided on the left side of the limit block 6, and the limit can be toggled by the lever 602 The block 6 moves, and the lever 602 is slidably installed with the bottom inner wall of the lower shell 4 of the lock body and the bottom of the upper shell 3 of the lock body, wherein a second sliding hole 14 is provided on the bottom inner wall of the lower shell 4 of the lock body, and a third sliding hole is provided on the top of the upper shell 3 of the lock body, and the front inner wall and the rear inner wall of the second sliding hole 14 are respectively in sliding contact with the front side and the rear side of the lever 602, and the top of the lever 602 passes through the third sliding hole and extends to the top of the upper shell 3 of the lock body, and the front side and the rear side of the lever 602 are respectively in sliding contact with the front inner wall and the rear inner wall of the third sliding hole, and the second sliding hole 14 and the third sliding hole have a lateral guiding effect on the lever 602, and a T-shaped mounting shaft 13 is fixedly connected to the bottom inner wall of the lower shell 4 of the lock body, and the same torsion spring 8 is provided on the movable sleeve of the T-shaped mounting shaft 13 and the lever 602, and the lever 602 is driven to move rightward and reset when the torsion spring 8 is in a torsion compression state and the torsion force is released;

[0023] A positioning shaft 12 is movably embedded on the bottom inner wall of the lower shell 4 of the lock body, and the upper shell 3 of the lock body is movably sleeved on the positioning shaft 12. A mounting plate 9 is sleeved on the positioning shaft 12, and a protruding structure 901 is provided on the right side of the mounting plate 9 and is movably contacted with the left side of the shaft rod 11. The utility model, through the arrangement of a series of structures, can adjust the direction of the lock tongue 1 by simply turning the button, which is convenient for personnel to operate, and can effectively restrict the lock tongue 1 after adjustment, so that the lock tongue 1 will not pop out completely backwards, and can be opened and closed normally, thereby improving the stability of use.

[0024] Working principle: When in use, when adjusting the reversing of the locking tongue 1, the lever 602 is toggled to the left. The lever 602 slides to the left in the second sliding hole 14 and the third sliding hole. While the lever 602 moves to the left, the torsion spring 8 is torsionally compressed. The lever 602 drives the limit block 6 to move to the left, and the limit block 6 drives the limit convex block 601 to move to the left to separate from the sliding block 7, releasing the restriction on the sliding block 7. At this time, the elastic force of the compression spring 5 in the compressed state drives the locking tongue 1 to move backward, so that the front part of the locking tongue 1 moves into the locking tongue hole 201, and the rear part of the locking tongue 1 moves out of the locking tongue hole 201. The locking tongue 1 also drives the shaft rod 11 and the sliding block 7 to move backward. Since the rear part of the locking tongue 1 moves out of the locking tongue hole 201 at this time, the restriction on the locking tongue 1 is released. Since the distance between the left and right sides and the distance between the top and bottom of the front part of the locking tongue 1 are both smaller than the distance between the top inner wall and the bottom inner wall of the locking tongue hole 201 at this time, the locking tongue 1 can be rotated at this time. Rotate 180° according to the installation environment to change the direction of the locking tongue 1. After adjustment, the locking tongue 1 can be pressed forward, so that the rear part of the locking tongue 1 moves forward into the locking tongue hole 201, and the front part of the locking tongue 1 moves out of the locking tongue hole 201. The locking tongue 1 drives the shaft rod 11 and the sliding block 7 to move backward in sequence. Then, the thrust on the lever 602 is released. At this time, the torsion spring 8 in the torsionally compressed state drives the lever 602 to move to the left. The lever 602 drives the limit block 6 and the limit convex block 601 to move to the right in sequence until they are in movable contact with the rear side of the sliding block 7. At this time, the limit block 6 cooperates with the limit convex block 601 to restrict the sliding block 7 again, so that it cannot move backward, thereby realizing the restriction on the locking tongue 1, making the locking tongue 1 unable to move backward out, and at this time, the rear part of the locking tongue 1 is located in the locking tongue hole 201 and cannot rotate, achieving the rotational restriction on the locking tongue 1, thereby realizing the effective restriction on the locking tongue 1, and further completing the reversing operation of the locking tongue 1. When the reversing of the locking tongue 1 is not required, by restricting the limit block 6 and the limit convex block 601, the situation that the locking tongue 1 pops out completely backward will not occur, and the lock can be normally locked and unlocked, improving the use stability and facilitating the operation of personnel.

[0025] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and the inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A lock body reversing mechanism, comprising a lock body lower shell (4) with openings at the top and rear sides, a lock body upper shell (3) being fixedly threadedly disposed at the top of the lock body lower shell (4), and a guide plate (2) being fixedly mounted at the rear side of the lock body lower shell (4), characterized in that: A lock tongue hole (201) is provided at the rear side of the guide plate (2), a lock tongue (1) is movably sleeved in the lock tongue hole (201), the front side of the lock tongue (1) extends into the lower shell (4) of the lock body and is slidably mounted on the bottom inner wall thereof, a shaft rod (11) is embedded and fixed at the front side of the lock tongue (1), a sliding block (7) is fixedly sleeved on the shaft rod (11) and is slidably mounted on the bottom inner wall of the lower shell (4) of the lock body, a U-shaped block (15) located at the rear side of the sliding block (7) is fixedly mounted on the bottom inner wall of the lower shell (4) of the lock body, the U-shaped block (15) is movably sleeved on the shaft rod (11), the front side of the lock tongue (1) and the rear side of the U-shaped block (15) are connected to each other. A compression spring (5) in a compressed state is fixedly connected between the two sides, the compression spring (5) is movably sleeved on the shaft rod (11), a limit mechanism is movably sleeved on the shaft rod (11), the limit mechanism is installed on the bottom inner wall of the lock body lower shell (4), a positioning shaft (12) is movably embedded on the bottom inner wall of the lock body lower shell (4), the lock body upper shell (3) is movably sleeved on the positioning shaft (12), the positioning shaft (12) is sleeved with a mounting plate (9), the right side of the mounting plate (9) is provided with a protruding structure (901) and is movably in contact with the left side of the shaft rod (11).

2. A lock body reversing mechanism according to claim 1, characterized in that: The limiting mechanism comprises a limiting block (6) movably sleeved on the shaft (11); a limiting protrusion (601) is integrally arranged on the front bottom of the limiting block (6); the front side of the limiting protrusion (601) is movably contacted with the rear side of the sliding block (7); the rear side of the limiting block (6) is movably contacted with the front side of the U-shaped block (15); a lever (602) is integrally arranged on the left side of the limiting block (6); the lever (602) is slidably mounted on the bottom inner wall of the lock body lower shell (4) and the bottom of the lock body upper shell (3); a T-shaped mounting shaft (13) is fixedly connected to the bottom inner wall of the lock body lower shell (4); and the same torsion spring (8) is movably sleeved on the T-shaped mounting shaft (13) and the lever (602).

3. A lock body reversing mechanism according to claim 1, characterized in that: A first sliding hole (10) is provided on the inner wall of the bottom of the lower shell (4) of the lock body, and a first protruding block (701) is provided at the bottom of the sliding block (7) and is slidably mounted with the first sliding hole (10).

4. A lock body reversing mechanism according to claim 2, characterized in that: A second sliding hole (14) is provided on the bottom inner wall of the lock body lower shell (4), and a third sliding hole is provided on the top of the lock body upper shell (3). The front inner wall and the rear inner wall of the second sliding hole (14) are respectively in sliding contact with the front and rear sides of the lever (602). The top end of the lever (602) passes through the third sliding hole and extends to the top of the lock body upper shell (3). The front and rear sides of the lever (602) are respectively in sliding contact with the front inner wall and the rear inner wall of the third sliding hole. A through hole (603) is provided on the front side of the limit block (6). The top inner wall and the bottom inner wall of the through hole (603) are respectively in movably contact with the top and bottom of the shaft rod (11).

5. A lock body reversing mechanism according to claim 1, characterized in that: The left-right width of the front portion of the lock tongue (1) is smaller than the left-right width of the rear portion, the inner wall of the lock tongue hole (201) is in active contact with the outer side of the lock tongue (1), the distance between the top inner wall and the bottom inner wall of the lock tongue hole (201) is smaller than the distance between the left and right sides of the rear portion of the lock tongue (1), and the distance between the left and right sides of the front portion of the lock tongue (1) and the distance between the top and the bottom are both smaller than the distance between the top inner wall and the bottom inner wall of the lock tongue hole (201).

6. A lock body reversing mechanism according to claim 1, characterized in that: The bottom of the lock tongue (1) is integrally provided with a second protruding block, and the bottom inner wall of the lock body lower shell (4) is provided with a sliding groove (16) with an opening at the rear side, and the inner walls on both sides of the sliding groove (16) are in sliding contact with the two sides of the second protruding block respectively.

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