Lock body structure

Abstract

The utility model relates to the technical field of locks, and discloses a lock body structure which comprises a shell. The spring bolt assembly is movably connected with the shell, the spring bolt assembly comprises a main spring bolt and a main spring bolt plate which are connected, the spring bolt assembly has a first locking state that the main spring bolt extends out of the shell and a first unlocking state that the main spring bolt retracts into the shell, and a sliding groove is formed in the main spring bolt plate; the spring bolt shifting piece is rotatably connected to the shell, a guide piece is fixedly connected to the spring bolt shifting piece, the guide piece is in sliding fit with the sliding groove, and the spring bolt shifting piece drives the guide piece to slide relative to the sliding groove so that the spring bolt assembly can be switched between the first locking state and the first unlocking state; the first abutting piece is connected to the main spring bolt plate, the first abutting piece is located at the tail end of the sliding groove, and the first abutting piece and the sliding groove are arranged in a spaced mode; when the guiding piece moves to the tail end of the sliding groove along the sliding groove, the first abutting piece makes contact with the spring bolt shifting piece so as to buffer the spring bolt shifting piece. The spring bolt shifting piece firstly makes contact with the first abutting piece, and the collision sound of the guiding piece and the main spring bolt plate is reduced.

Description

Technical Field

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

[0002] Locks are widely used in various fields, such as door locks, drawer locks, mechanical password locks, etc., and play a good role in security control. Among them, door locks are the most common locks in people's daily lives. Whether it is an electronic door lock or a traditional mechanical lock, most of them rely on the coordinated movement between the mechanical structures inside the lock body to achieve the unlocking or locking action. However, the movement of the mechanical structure is often accompanied by noise, so the lock body structure is noisy during use, affecting the customer experience. Utility Model Content

[0003] In view of this, the utility model provides a lock body structure to solve the problem of high noise during use of the lock body structure.

[0004] The utility model provides a lock body structure, comprising: a shell; a lock tongue assembly movably connected to the shell, the lock tongue assembly comprising a main lock tongue and a main lock tongue plate connected, the lock tongue assembly having a first locking state in which the main lock tongue extends out of the shell and a first unlocking state in which the main lock tongue is retracted into the shell, and a sliding groove is provided on the main lock tongue plate; a lock tongue paddle is rotatably connected to the shell, the lock tongue paddle is fixedly connected to the lock tongue paddle, the guide member is slidably matched with the sliding groove, the lock tongue paddle drives the guide member to slide relative to the sliding groove to drive the main lock tongue plate to move relative to the shell, and the lock tongue assembly switches between the first locking state and the first unlocking state; a first abutment is connected to the main lock tongue plate, the first abutment is located at the end of the sliding groove and is spaced apart from the sliding groove; when the guide member moves along the sliding groove to the end of the sliding groove, the first abutment contacts the lock tongue paddle to buffer the lock tongue paddle.

[0005] Beneficial effect: by rotating the lock tongue pick relative to the shell, the guide member is driven to rotate relative to the shell, and by the sliding cooperation between the guide member and the slide slot, the guide member drives the main lock tongue plate to move relative to the shell, thereby driving the main lock tongue to extend or retract into the shell, thereby realizing the switching of the lock tongue assembly between the first locked state and the first unlocked state, and by providing a first abutment member spaced apart from the guide member at the end of the slide slot, when the guide member moves to the end of the slide slot, the lock tongue pick first contacts the first abutment member, thereby buffering the lock tongue pick, so that the guide member on the lock tongue pick slowly approaches the end inner wall of the slide slot, thereby reducing the sound of the guide member colliding with the main lock tongue plate, and effectively solving the problem of high noise of the lock body structure during use.

[0006] In an optional embodiment, the number of the first abutment members is two, and one first abutment member is disposed at each end of the slide groove.

[0007] Beneficial effect: By arranging a first abutment member at each end of the slide groove, when the guide member moves to the two ends of the slide groove respectively, the lock tongue paddle can be buffered by the first abutment member, so that when the main lock tongue is extended or retracted to the point where it is almost in place, it can first contact with the first abutment member, thereby reducing the sound of the guide member colliding with the two ends of the slide groove respectively, and further reducing the noise of the lock body structure during use.

[0008] In an optional embodiment, the first abutment member is detachably connected to the main lock tongue plate.

[0009] Beneficial effects: convenient disassembly and assembly, convenient maintenance and replacement, when the first abutment part is worn, only the first abutment part needs to be replaced, the operation is convenient and the cost is low.

[0010] In an optional embodiment, a mounting hole is formed on the main lock tongue plate, and the first abutment member is inserted into the mounting hole.

[0011] Beneficial effects: the mounting hole has a simple structure and is easy to process; the first abutment member matches the mounting hole, which is easy to assemble and simple to operate.

[0012] In an optional embodiment, the first abutment member is an elastic member.

[0013] Beneficial effect: By setting the first abutment member as an elastic member, elastic contact is achieved between the lock tongue paddle and the first abutment member, which has a good buffering effect and can reduce the collision sound when the lock tongue paddle contacts the first abutment member, thereby further reducing noise.

[0014] In an optional implementation, the mounting hole is a circular hole, and the cross-section of the first abutment member is circular.

[0015] Beneficial effects: The first abutment member and the circular hole with a circular cross section have a simple structure, are easy to process, and have good stability.

[0016] In an optional embodiment, the slide groove passes through the main lock tongue plate, and the cross-section of the guide member is circular.

[0017] Beneficial effects: the slide groove penetrates the main lock tongue plate along the thickness direction of the main lock tongue plate, the processing difficulty is low, the guide piece is a cylindrical pin, the structure is simple, and the cylindrical pin and the slide groove are smoother during relative movement, ensuring smoothness during the opening / closing process.

[0018] In an optional embodiment, the lock body structure further includes: a latch bolt assembly, which is spaced apart from the bolt bolt assembly, the latch bolt assembly including a latch bolt, a push rod, a spring, a first stopper and a second stopper, the latch bolt assembly having a second locked state in which the latch bolt extends out of the housing and a second unlocked state in which the latch bolt retracts into the housing; one end of the push rod is connected to the latch bolt; the first stopper is slidably sleeved on the push rod and fixedly connected to the housing; the spring is sleeved on the push rod, one end of the spring abuts against the latch bolt and the other end abuts against the first stopper; the second stopper is connected to an end of the push rod away from the latch bolt; a latch bolt paddle is rotatably connected to the housing, a protrusion is constructed on the latch bolt paddle, the protrusion is formed by extending a partial area on the edge of the latch bolt paddle in a direction away from its center, and at least a portion of the protrusion extends between the first stopper and the second stopper; a second abutment is sleeved on the protrusion and located between the first stopper and the second stopper.

[0019] Beneficial effect: by sleeved the second abutment on the protruding portion, when the oblique tongue pick returns counterclockwise, the protruding portion contacts the first stop block through the second abutment, and the second abutment plays a buffering role. On the one hand, it reduces the noise generated by the direct collision between the protruding portion and the first stop block. On the other hand, under the buffering effect of the second abutment, the ejection speed of the oblique tongue is slowed down, thereby reducing the collision sound between the oblique tongue and the external structure, thereby reducing the noise.

[0020] In an optional embodiment, the second abutment member is an elastic member.

[0021] Beneficial effect: by setting the second abutment as an elastic member, when the oblique tongue extends out of the shell, when the oblique tongue paddle rotates back to its original position, the first stopper first compresses the elastic second abutment, which has a good buffering effect, thereby effectively reducing the collision sound of the oblique tongue popping out.

[0022] In an optional implementation, the second abutment member is a rubber ring.

[0023] Beneficial effects: The rubber has good elasticity, good buffering effect and low cost, and the rubber ring has a simple structure and is easy to obtain. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1This is a structural schematic diagram of a lock body structure in a locked state according to an embodiment of the utility model;

[0026] Figure 2 for Figure 1 A schematic diagram of the structural state of the lock body structure shown in FIG. 1 , in which the main lock tongue is retracted into the housing and the oblique tongue is extended out of the housing;

[0027] Figure 3 for Figure 1 A schematic diagram of the structural state in which the main lock tongue and the oblique tongue of the lock body structure are both retracted into the housing;

[0028] Figure 4 It is a schematic structural diagram of the first abutment member of an embodiment of the utility model.

[0029] Description of reference numerals:

[0030] 1. Shell; 2. Lock tongue assembly; 201. Main lock tongue; 202. Main lock tongue plate; 212. Slide groove; 3. Lock tongue pick; 301. Guide member; 4. First abutment member; 401. Head; 402. Tail; 403. Connecting portion; 5. Slant tongue assembly; 501. Slant tongue; 502. Push rod; 503. Spring; 504. First stop block; 505. Second stop block; 6. Slant tongue pick; 601. Protrusion; 7. Second abutment member; 8. Lock tongue dial wheel. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0032] Combine the following Figures 1 to 4 , describing an embodiment of the utility model.

[0033] According to an embodiment of the utility model, a lock body structure is provided, including: a housing 1, a lock tongue assembly 2, a lock tongue paddle 3 and a first abutment member 4. The lock tongue assembly 2 is movably connected to the housing 1, and the lock tongue assembly 2 includes a main lock tongue 201 and a main lock tongue plate 202 connected to each other. The lock tongue assembly 2 has a first locking state in which the main lock tongue 201 extends out of the housing 1 and a first unlocking state in which the main lock tongue 201 is retracted into the housing 1, and a slide groove 212 is provided on the main lock tongue plate 202; the lock tongue paddle 3 is rotatably connected to the housing 1, and a guide member 301 is fixedly connected to the lock tongue paddle 3, and the guide member 301 is slidably matched with the slide groove 212, and the lock tongue paddle 3 drives The guide member 301 slides relative to the slide groove 212 to drive the main lock tongue plate 202 to move relative to the shell 1, and the lock tongue assembly 2 switches between the first locked state and the first unlocked state; the first abutment member 4 is connected to the main lock tongue plate 202, and the first abutment member 4 is located at the end of the slide groove 212 and is spaced apart from the slide groove 212; when the guide member 301 moves along the slide groove 212 to the end of the slide groove 212, the first abutment member 4 contacts the lock tongue paddle 3 to buffer the lock tongue paddle 3.

[0034] The lock body structure of the present embodiment is applied, and the guide member 301 is driven to rotate relative to the shell 1 by the rotation of the lock tongue pick 3 relative to the shell 1. The guide member 301 drives the main lock tongue plate 202 to move relative to the shell 1 through the sliding cooperation between the guide member 301 and the slide groove 212, thereby driving the main lock tongue 201 to extend or retract into the shell 1, and the lock tongue assembly 2 is switched between the first locked state and the first unlocked state. In addition, by providing a first abutment member 4 spaced apart from the guide member 301 at the end of the slide groove 212, when the guide member 301 moves to the end of the slide groove 212, the lock tongue pick 3 first contacts the first abutment member 4, thereby buffering the lock tongue pick 3, so that the guide member 301 on the lock tongue pick 3 slowly approaches the end inner wall of the slide groove 212, thereby reducing the sound of the collision between the guide member 301 and the main lock tongue plate 202, and effectively solving the problem of high noise of the lock body structure during use.

[0035] It should be noted that Figures 1 to 3 The lock body structure is a schematic diagram of the internal structure of the lock body after hiding part of the shell. The end of the slide groove 212 refers to the end of the slide groove 212 in the extending direction on the main lock tongue plate 202. Figure 1 As shown, the main lock tongue 201 and the oblique tongue 501 are both extended out of the housing, and the lock body structure is in a locked state; in the unlocking process, by turning the key, the transmission structure in the lock body structure is driven to move, the lock tongue dial wheel 8 is driven to rotate counterclockwise, thereby driving the lock tongue dial 3 to rotate counterclockwise, and through the sliding cooperation between the guide member 301 and the slide groove 212, the main lock tongue plate 202 is driven to slide relative to the housing 1, thereby driving the main lock tongue 201 to retract into the housing 1, and the lock body structure is switched to as shown in FIG. Figure 2The main bolt is retracted into the housing and the latch bolt is extended out of the housing; by continuing to turn the key or the door handle, the latch bolt assembly 5 can be driven to move, thereby driving the lock body structure to switch to the state shown in FIG. Figure 3 The main lock tongue and the oblique tongue are shown to be retracted into the housing, thereby achieving unlocking.

[0036] In one embodiment, the number of the first abutment members 4 is two, and one first abutment member 4 is provided at each end of the slide slot 212. By providing one first abutment member 4 at each end of the slide slot 212, when the guide member 301 moves to each end of the slide slot 212, the first abutment member 4 can buffer the lock tongue paddle 3, so that when the main lock tongue 201 is extended or retracted to a position, it can first contact with the first abutment member 4, thereby reducing the sound of the guide member 301 colliding with the two ends of the slide slot 212, and further reducing the noise of the lock body structure during use. It should be noted that when the guide member 301 contacts one end of the slide slot 212, the main lock tongue 201 extends out of the housing 1; when the guide member 301 contacts the other end of the slide slot 212, the main lock tongue 201 retracts into the housing 1.

[0037] In one embodiment, the first abutment 4 is detachably connected to the main lock tongue plate 202, which is convenient for disassembly and assembly, and convenient for maintenance and replacement. When the first abutment 4 is worn, only the first abutment 4 needs to be replaced, which is easy to operate and low in cost.

[0038] In one embodiment, a mounting hole is provided on the main bolt plate 202, and the first abutment member 4 is passed through the mounting hole. The mounting hole has a simple structure and is easy to process. The first abutment member 4 cooperates with the mounting hole, which is easy to assemble and simple to operate.

[0039] In one embodiment, the first abutment member 4 is an elastic member. By setting the first abutment member 4 as an elastic member, the lock tongue paddle 3 and the first abutment member 4 are in elastic contact, which has a good buffering effect and can reduce the collision sound when the lock tongue paddle 3 and the first abutment member 4 contact, thereby further reducing noise.

[0040] In one embodiment, the first abutting member 4 is made of rubber, which has good elasticity, low cost and is easy to obtain.

[0041] In addition, in other embodiments, the first abutment member 4 can also be made of plastic, which can also play a buffering role on the lock tongue paddle 3, thereby reducing the collision noise between the guide member 301 and the main lock tongue plate 202, and the contact sound between the lock tongue paddle 3 and the first abutment member 4 is also small.

[0042] In one embodiment, the mounting hole is a circular hole, and the cross section of the first abutment member 4 is circular. The first abutment member 4 and the circular hole with a circular cross section have a simple structure, are easy to process, and have good stability. Figure 4As shown, the first abutment 4 is a pin, and the first abutment 4 includes a head 401, a tail 402 and a connecting portion 403 connected between the head 401 and the tail 402. The radial dimension of the connecting portion 403 is smaller than the radial dimension of the head 401 and the tail 402. The connecting portion 403 is inserted into the mounting hole, the head 401 is located on one side of the main lock tongue plate 202 and the tail 402 is located on the other side of the main lock tongue plate 202. Since the first abutment 4 is an elastic member, during the installation process, the first abutment 4 can be directly squeezed into the mounting hole, which is easy to operate.

[0043] In addition, in other embodiments, the mounting hole may also be a square hole, an elliptical hole, etc., and the cross-sectional shape of the first abutment member 4 only needs to match the shape of the mounting hole.

[0044] In one embodiment, the slide groove 212 penetrates the main bolt plate 202, and the cross section of the guide member 301 is circular. The slide groove 212 penetrates the main bolt plate 202 along the thickness direction of the main bolt plate 202, and the processing difficulty is low. The guide member 301 is a cylindrical pin with a simple structure, and the cylindrical pin and the slide groove 212 are smoother during the relative movement process, ensuring the smoothness of the opening / closing process.

[0045] In one embodiment, the lock body structure further includes: a latch bolt assembly 5, a latch bolt paddle 6 and a second abutment member 7. The latch bolt assembly 5 is spaced apart from the bolt assembly 2, and includes a latch bolt 501, a push rod 502, a spring 503, a first stopper 504 and a second stopper 505. The latch bolt assembly 5 has a second locking state in which the latch bolt 501 extends out of the housing 1 and a second unlocking state in which the latch bolt 501 is retracted into the housing 1; one end of the push rod 502 is connected to the latch bolt 501; the first stopper 504 is slidably sleeved on the push rod 502 and fixedly connected to the housing 1; the spring 503 is sleeved on the push rod 502, one end of the spring 503 abuts against the latch bolt 501 and the other end of the spring 503 abuts against the latch bolt 501 and the second ... The end of the push rod 502 abuts against the first stopper 504; the second stopper 505 is connected to an end of the push rod 502 away from the inclined tongue 501; the inclined tongue paddle 6 is rotatably connected to the housing 1, and a protrusion 601 is constructed on the inclined tongue paddle 6. The protrusion 601 is formed by extending a partial area on the edge of the inclined tongue paddle 6 in a direction away from the center thereof, and at least a part of the protrusion 601 extends between the first stopper 504 and the second stopper 505; the second abutment member 7 is sleeved on the protrusion 601 and is located between the first stopper 504 and the second stopper 505. When unlocking, by turning the door handle or turning the key to drive the latch bolt paddle 6 to rotate clockwise relative to the housing 1, the protrusion 601 pushes the second stopper 505 to move in the direction away from the first stopper 504, thereby pulling the push rod 502 to slide relative to the first stopper 504, thereby driving the latch bolt 501 to retract into the housing 1, and the latch bolt 501 compresses the spring 503, so that the latch bolt 501 is switched from the second locked state to the second unlocked state; after the door handle is released or the key is pulled out, the latch bolt 501 automatically pops out under the elastic thrust of the spring 503, and extends out of the housing 1 again, and the latch bolt 501 pulls the push rod 50 2, thereby driving the second stopper 505 to move toward the direction close to the first stopper 504, and the oblique tongue pick 6 rotates counterclockwise. By sleeved with the second abutment 7 on the protruding portion 601, when the oblique tongue pick 6 returns counterclockwise, the protruding portion 601 contacts the first stopper 504 through the second abutment 7, and the second abutment 7 plays a buffering role. On the one hand, it reduces the noise generated by the direct collision of the protruding portion 601 with the first stopper 504. On the other hand, under the buffering effect of the second abutment 7, the ejection speed of the oblique tongue 501 is slowed down, thereby reducing the collision sound of the oblique tongue 501 with the external structure, thereby playing a role in reducing noise.

[0046] In one embodiment, the second abutment member 7 is an elastic member. By setting the second abutment member 7 as an elastic member, when the oblique tongue 501 extends out of the housing 1, when the oblique tongue paddle 6 rotates back to its original position, the first stopper 504 first compresses the elastic second abutment member 7, which has a good buffering effect, thereby effectively reducing the collision sound of the oblique tongue 501 popping out.

[0047] In one embodiment, the second abutment member 7 is a rubber ring. Rubber has good elasticity, good buffering effect and low cost, and the rubber ring has a simple structure and is easy to obtain.

[0048] In addition, in other embodiments, the second abutting member 7 may also be made of flexible materials such as plastic.

[0049] Although the embodiments of the present invention are described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A lock body structure, characterized in that: include: Housing (1); A lock tongue assembly (2) is movably connected to the housing (1), the lock tongue assembly (2) comprising a main lock tongue (201) and a main lock tongue plate (202) connected to each other, the lock tongue assembly (2) having a first locking state in which the main lock tongue (201) extends out of the housing (1) and a first unlocking state in which the main lock tongue (201) is retracted into the housing (1), and a slide groove (212) is provided on the main lock tongue plate (202); A lock tongue paddle (3) is rotatably connected to the housing (1); a guide member (301) is fixedly connected to the lock tongue paddle (3); the guide member (301) is slidably matched with the slide groove (212); the lock tongue paddle (3) drives the guide member (301) to slide relative to the slide groove (212), so as to drive the main lock tongue plate (202) to move relative to the housing (1); and the lock tongue assembly (2) switches between the first locked state and the first unlocked state; A first abutment member (4) is connected to the main lock tongue plate (202), and the first abutment member (4) is located at the end of the slide groove (212) and is spaced apart from the slide groove (212); when the guide member (301) moves along the slide groove (212) to the end of the slide groove (212), the first abutment member (4) contacts the lock tongue paddle (3) to buffer the lock tongue paddle (3).

2. The lock body structure according to claim 1, characterized in that: The number of the first abutment members (4) is two, and one first abutment member (4) is respectively provided at both ends of the slide groove (212).

3. The lock body structure according to claim 1, characterized in that: The first abutment member (4) is detachably connected to the main locking tongue plate (202).

4. The lock body structure according to claim 3, characterized in that: The main locking bolt plate (202) is provided with a mounting hole, and the first abutment member (4) is inserted into the mounting hole.

5. The lock body structure according to claim 4, characterized in that: The first abutment member (4) is an elastic member.

6. The lock structure according to claim 4, characterized in that: The mounting hole is a circular hole, and the cross section of the first abutment member (4) is circular.

7. The lock body structure according to claim 1, characterized in that: The slide groove (212) passes through the main lock tongue plate (202), and the cross section of the guide member (301) is circular.

8. The lock body structure according to claim 1, characterized in that: The lock body structure also includes: A latch bolt assembly (5) is arranged at a distance from the bolt assembly (2), the latch bolt assembly (5) comprising a latch bolt (501), a push rod (502), a spring (503), a first stopper (504) and a second stopper (505), the latch bolt assembly (55) having a second locking state in which the latch bolt (501) extends out of the housing (1) and a second unlocking state in which the latch bolt (501) is retracted into the housing (1); one end of the push rod (502) is connected to the latch bolt (501); the first stopper (504) is slidably mounted on the push rod (502) and fixedly connected to the housing (1); the spring (503) is mounted on the push rod (502), one end of the spring (503) is in contact with the latch bolt (501) and the other end of the spring (503) is in contact with the first stopper (504); the second stopper (505) is connected to one end of the push rod (502) away from the latch bolt (501); An inclined tongue paddle (6) is rotatably connected to the housing (1), and a protrusion (601) is formed on the inclined tongue paddle (6), wherein the protrusion (601) is formed by extending a portion of an edge of the inclined tongue paddle (6) in a direction away from the center thereof, and at least a portion of the protrusion (601) extends between the first stopper (504) and the second stopper (505); The second abutment member (7) is sleeved on the protruding portion (601) and is located between the first stopper (504) and the second stopper (505).

9. The lock body structure according to claim 8, characterized in that: The second abutment member (7) is an elastic member.

10. The lock structure according to claim 9, characterized in that: The second abutment member (7) is a rubber ring.

Images