A lock body that is easy to open and close

Abstract

The invention discloses a lock body that is convenient for opening and closing a lock, comprising a lock shell, a lock core hole for installing a lock core is arranged on the lock shell, a lock tongue assembly and a transmission member are arranged in the lock shell, and the lock tongue assembly comprises a main tongue mounting plate and a main lock tongue; a guide structure that enables the transmission member to move along an arc track is arranged between the transmission member and the lock shell, a bearing and pushing structure that can cooperate with a dial wheel of the lock core is arranged on the transmission member so that the lock core installed in the lock core hole can push the transmission member along the guide structure through the dial wheel, a transmission structure is arranged between the transmission member and the main tongue mounting plate, and when the transmission member moves along the guide structure, the main lock tongue is driven to extend or retract into the lock shell through the transmission structure. When the invention is used, the dial wheel of the lock core only needs to rotate once to lock or unlock the main lock tongue, which is convenient and quick.

Description

Technical Field

[0001] The invention relates to a lock body, in particular to a lock body which is convenient for opening and closing the lock. Background Art

[0002] The main door lock, also called the entrance door lock, is the lock equipped on the main door leading to the outside of the entire building (excluding indoor door locks). Due to the special location of the main door lock, it is usually very strong. The more commonly used main door locks include anti-theft door locks, glass door locks, etc.

[0003] The lock body of a large door lock generally has three types of lock tongues, namely, a main lock tongue, an oblique lock tongue and a safety lock tongue. The oblique lock tongue can be opened by turning the door handle, and the main lock tongue and the oblique lock tongue can be opened by a key. In daily use, the main lock tongue and the oblique lock tongue are mainly used to lock for theft prevention.

[0004] The lock body of the existing gate lock, when the lock is opened and closed by the key, uses the dial wheel of the lock core to dial the tooth groove on the main tongue mounting plate, driving the main tongue mounting plate to make the main lock tongue retract or extend out of the lock shell, thereby realizing unlocking and locking. Since the stroke of the main tongue mounting plate is small when the key is turned once, it is necessary to use the key to drive the dial wheel to rotate twice each time to make the main lock tongue completely retract into the lock shell or make the main lock tongue completely extend out of the lock shell, which is very inconvenient. In addition, the stroke of the main tongue mounting plate is divided into two gears. During the process of opening and closing the lock, it is easy to cause the accumulation of the stroke difference between the dial wheel of the lock core and the main tongue mounting plate, thereby causing the lock body to get stuck. Summary of the invention

[0005] In view of this, an object of the present invention is to provide a lock body that is convenient for opening and closing the lock.

[0006] The technical solution adopted by the present invention to solve the technical problem is:

[0007] A lock body that is convenient for opening and closing the lock comprises a lock shell, the lock shell is provided with a lock core hole for installing a lock core, and the lock shell is provided with:

[0008] A lock tongue assembly, comprising a main tongue mounting plate and a main lock tongue arranged on the main tongue mounting plate, wherein the lock tongue assembly can move left and right relative to the lock housing so that the main lock tongue extends out of or is retracted into the lock housing;

[0009] A transmission member, a guide structure is provided between the transmission member and the lock housing, which can enable the transmission member to move along an arc trajectory, a thrust structure is provided on the transmission member, which can cooperate with the thumbwheel of the lock core, so that the lock core installed in the lock core hole can push the transmission member along the guide structure through the thumbwheel, and a transmission structure is provided between the transmission member and the main tongue mounting plate. When the transmission member moves along the guide structure, the lock tongue assembly is driven to move left and right through the transmission structure.

[0010] Preferably, the guide structure comprises an arcuate groove provided on the lock housing, and a guide pin provided on the transmission member and slidably matched with the arcuate groove.

[0011] Preferably, the guide pin includes a first guide pin located at the head end of the transmission member and a second guide pin located at the end of the transmission member, and the arc groove includes a first arc groove slidingly matched with the first guide pin and a second arc groove matched with the second guide pin.

[0012] Preferably, both the first arc groove and the second arc groove are circular arc grooves, and the first arc groove and the second arc groove are coaxial.

[0013] Preferably, the thrust structure is a groove arranged on the side of the transmission member facing the lock core hole.

[0014] Preferably, the axis A of the first arc-shaped groove deviates from the axis B of the thumbwheel of the lock cylinder, and the axis A and the axis B are parallel to each other.

[0015] Preferably, the transmission member has an arc-shaped edge, and the transmission structure includes a plurality of teeth arranged on the arc-shaped edge, and a rack arranged on the main tongue mounting plate and meshing with the teeth.

[0016] Preferably, the arc groove is a circular arc groove, and the arc edge is a circular arc edge and is coaxial with the arc groove.

[0017] Preferably, a tilted tongue assembly is further provided in the lock housing, and the tilted tongue assembly includes a tilted tongue mounting piece and a tilted lock tongue arranged at one end of the tilted tongue mounting piece. The tilted tongue assembly can move left and right relative to the lock housing to make the tilted lock tongue extend out or be retracted into the lock housing. The lock housing is provided with a tilted tongue retracting mechanism which can retract the tilted lock tongue into the lock housing after the main lock tongue is retracted into the lock housing.

[0018] Preferably, a first return spring capable of driving the oblique lock tongue to extend out of the lock housing is arranged in the lock housing.

[0019] Preferably, the oblique tongue retracting mechanism comprises:

[0020] A rotating member, mounted on the lock housing, wherein when the rotating member rotates, the rotating member pushes the oblique bolt mounting member so that the oblique bolt is retracted into the lock housing;

[0021] A movable push rod is installed on the main tongue mounting plate. After the main lock tongue is retracted into the lock housing, the dial wheel of the lock core pushes the movable push rod to move the movable push rod upward and push the rotating part to rotate. A second reset spring for driving the movable push rod to reset is arranged between the main tongue mounting plate and the movable push rod.

[0022] Preferably, the movable push rod is mounted on the main tongue mounting plate via a floating guide mechanism so that the movable push rod can move up and down and swing left and right relative to the main tongue mounting plate.

[0023] Preferably, the floating guide mechanism comprises a vertical guide groove arranged on the movable push rod, and a pin fixed to the main tongue mounting plate and slidably matched with the guide groove, and the part of the pin located in the guide groove is cylindrical.

[0024] Preferably, the main lock tongue extends out of the lock housing when it moves to the left, and retracts into the lock housing when it moves to the right, and a limit table capable of limiting the rightward swing of the movable push rod is provided on the main tongue mounting plate. The upper end of the guide groove is closed, and the second return spring is obliquely connected between the movable push rod and the main tongue mounting plate. When the push wheel of the lock core is separated from the movable push rod, the second return spring presses the movable push rod against the limit table through elastic force and presses the upper end of the guide groove against the pin.

[0025] The beneficial effects of the present invention are:

[0026] 1. The present invention transmits power through the above-mentioned transmission member, so that the dial wheel of the lock core only needs to rotate once to lock or unlock the main lock tongue, that is, only one turn of the key is required to lock or unlock, which is convenient and quick, eliminates the middle gear of the lock tongue assembly, and is not easy to get stuck.

[0027] 2. The movable push rod is installed on the main tongue mounting plate through a floating guide mechanism, which can guide the movable push rod in the up and down directions, and at the same time, the movable push rod can swing around the above-mentioned pin. When the dial wheel rotates clockwise and pushes the movable push rod upward, if the dial wheel rotates excessively to the position between the movable push rod and the transmission part, the key can be used to rotate the dial wheel counterclockwise to push the movable push rod open to avoid jamming. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a front view of the lock body in the locked state;

[0029] Figure 2 It is a front view of the lock body in the locked state with part of the lock shell omitted;

[0030] Figure 3 It is a front view of the lock body in the unlocked state with part of the lock shell omitted;

[0031] Figure 4 It is a three-dimensional diagram of the transmission parts;

[0032] Figure 5 is a schematic diagram of the positional relationship between the first arc-shaped groove, the second arc-shaped groove and the thumbwheel of the lock cylinder;

[0033] Figure 6 It is a connection diagram of the main moving parts of the lock body. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings.

[0035] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly. In addition, the descriptions of "preferred", "sub-preferred", etc. in the present invention are only used for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined as "preferred" or "sub-preferred" may explicitly or implicitly include at least one such feature.

[0036] Reference Figures 1 to 6 The embodiment of the present invention provides a lock body that is convenient for opening and closing a lock, including a lock shell 1, and a lock core hole 11 for installing a lock core 4 is provided on the lock shell 1. A lock tongue assembly and a transmission member 3 are provided in the lock shell 1, and the lock tongue assembly includes a main tongue mounting plate 21 and a main lock tongue 22 arranged on the main tongue mounting plate 21. The lock shell 1 is provided with a main tongue hole corresponding to the main lock tongue 22, and the lock tongue assembly can move left and right relative to the lock shell 1 to extend or retract the main lock tongue 22 into the lock shell 1; a guide structure that enables the transmission member 3 to move along an arc track is provided between the transmission member 3 and the lock shell 1, and a bearing and pushing structure that can cooperate with a thumb wheel 41 of the lock core 4 is provided on the transmission member 3 so that the lock core 4 installed in the lock core hole 11 can push the transmission member 3 along the guide structure through the thumb wheel 41, and a transmission structure is provided between the transmission member 3 and the main tongue mounting plate 21, and when the transmission member 3 moves along the guide structure, the lock tongue assembly is driven to move left and right through the transmission structure.

[0037] The lock body of the present invention needs to be used in conjunction with a lock core 4 and a key. When the lock body is used, the lock core 4 is fixedly installed in the above-mentioned lock core hole 11; in order to lock the lock tongue assembly after unlocking and closing the lock, a slider 8 that can lock the main tongue mounting plate 21 is generally provided in the lock body, and the slider 8 is connected to a spring or torsion spring that can press it against the main tongue mounting plate 21.

[0038] Reference Figure 1-Figure 3From the perspective shown, when the dial wheel 41 of the lock cylinder 4 is driven by the key to rotate counterclockwise, the dial wheel 41 first pushes the slider 8 to unlock the main tongue mounting plate 21, and then pushes the bearing and pushing structure on the transmission member 3, so that the transmission member 3 moves along the arc track of the guide structure. When the transmission member 3 moves, the transmission structure drives the bolt assembly to move to the left so that the main bolt 22 extends out of the lock housing 1, so as to achieve the effect of locking. After locking, the slider 8 automatically locks the bolt mounting plate under the action of elastic force. When the dial wheel 41 of the lock cylinder 4 is driven by the key to rotate clockwise, the dial wheel 41 first pushes the slider 8 to unlock the main tongue mounting plate 21, and then pushes the bearing and pushing structure on the transmission member 3, so that the transmission member 3 moves in the opposite direction along the arc track of the guide structure. When the transmission member 3 moves, the transmission structure drives the bolt assembly to move to the right so that the main bolt 22 is received in the lock housing 1, so as to achieve the effect of locking. After locking, the slider 8 automatically locks the bolt mounting plate under the action of elastic force. The present invention transmits power through the transmission member 3, so that the dial wheel 41 of the lock core 4 can lock or unlock the main lock tongue 22 by only turning one circle, that is, only one circle of the key is needed to lock or unlock, which is convenient and quick, eliminates the middle gear of the lock tongue assembly, and is not easy to get stuck.

[0039] In a preferred embodiment of the present invention, the guide structure includes an arc-shaped groove provided on the lock housing 1, and a guide pin provided on the transmission member 3 and slidably matched with the arc-shaped groove.

[0040] Specifically, the guide pin includes a first guide pin 301 located at the head end of the transmission member 3 and a second guide pin 302 located at the end of the transmission member 3, and the arc groove includes a first arc groove 101 slidably matched with the first guide pin 301 and a second arc groove 102 matched with the second guide pin 302. With such a structure, the guidance is more stable.

[0041] Furthermore, the first arc groove 101 and the second arc groove 102 are both circular arc grooves and the first arc groove 101 and the second arc groove 102 are coaxial, and from the front view, they are co-centered. With such a structure, it can be ensured that the transmission member 3 moves in a circular motion around the common axis of the first arc groove 101 and the second arc groove 102, which is convenient for calculating its formation and is conducive to improving the accuracy of design and calculation.

[0042] In a preferred embodiment of the present invention, the push-bearing structure is a groove 31 disposed on the side of the transmission member 3 facing the lock core hole 11, and the axis A of the first arc-shaped groove 101 deviates from the axis B of the thumbwheel 41 of the lock core 4, and the axis A and the axis B are parallel to each other. Since the axis A and the axis B deviate by a certain distance, the distance between the groove 31 and the axis B gradually changes during the movement of the transmission member 3 along the arc-shaped groove. Therefore, when the thumbwheel 41 pushes the transmission member 3, it will naturally come out of the groove 31 of the transmission member 3 after pushing for a certain distance. When the thumbwheel 41 rotates back, it will first enter the groove 31, push the rotating member 6 for a certain distance, and then come out of the groove 31.

[0043] In certain embodiments of the present invention, the above-mentioned push-bearing structure may also adopt other structural forms, for example, a protrusion arranged on the transmission member 3 is adopted to open or close the lock by pushing the two side walls of the protrusion.

[0044] In a preferred embodiment of the present invention, the transmission member 3 has an arcuate edge 32, and the transmission structure includes a plurality of teeth 33 disposed on the arcuate edge 32, and a rack 211 disposed on the main tongue mounting plate 21 and meshing with the teeth 33. Further, the arcuate edge 32 is an arcuate edge and is coaxial with the arcuate groove. From the front view, they are cocentric.

[0045] In one solution of the present invention, a latch assembly is further provided in the lock housing 1, and the latch assembly includes a latch mounting member 51 and a latch bolt 52 provided at one end of the latch mounting member 51. A latch hole corresponding to the latch bolt 52 is provided on the lock housing 1. The latch assembly can move left and right relative to the lock housing 1 to extend or retract the latch bolt 52 into the lock housing 1. A latch bolt retracting mechanism capable of retracting the latch bolt 52 into the lock housing 1 after the main latch bolt 22 is retracted into the lock housing 1 is provided in the lock housing 1. A first return spring 53 capable of driving the latch bolt 52 to extend out of the lock housing 1 is provided in the lock housing 1.

[0046] Specifically, the oblique bolt retracting mechanism includes a rotating member 6 and a movable push rod 71. The rotating member 6 is mounted on the lock housing 1. When the rotating member 6 rotates, it pushes the oblique bolt mounting member 51 to retract the oblique bolt 52 into the lock housing 1. The movable push rod 71 is mounted on the main bolt mounting plate 21. After the main bolt 22 is retracted into the lock housing 1, the dial wheel 41 of the lock cylinder 4 pushes the movable push rod 71 to move the movable push rod 71 upward and push the rotating member 6 to rotate. A second reset spring 72 for driving the movable push rod 71 to reset is provided between the main bolt mounting plate 21 and the movable push rod 71. In this solution, when the lock body is in the locked state, the dial wheel 41 of the key and the lock cylinder 4 rotates one circle, and the main bolt 22 can be retracted into the lock housing 1. The dial wheel 41 of the key and the lock cylinder 4 rotates a second circle, and the dial wheel 41 pushes the movable push rod 71 upward, and the oblique bolt 52 can be retracted into the lock housing 1.

[0047] The rotating member 6 can be a peg of the lock body for mounting the handle, or a separate rotating member 6 can be provided. The scheme of using the peg as the rotating member 6 is as follows: Figure 6 As shown, a paddle 62 and a push member 61 are provided on the paddle. When the movable push rod 71 moves upward, it pushes the push member 61 to rotate the paddle. The paddle pushes the oblique tongue mounting member 51 to move rightward through the paddle 62, thereby receiving the oblique lock tongue 52 into the lock housing 1.

[0048] Furthermore, the movable push rod 71 is installed on the main tongue mounting plate 21 through a floating guide mechanism so that the movable push rod 71 can move up and down and swing left and right relative to the main tongue mounting plate 21.

[0049] Reference Figure 1-Figure 3 From the perspective shown, the main lock tongue 22 extends out of the lock housing 1 when it moves to the left, and retracts into the lock housing 1 when it moves to the right.

[0050] Specifically, the floating guide mechanism includes a vertical guide groove 711 provided on the movable push rod 71, and a pin 212 fixed to the main tongue mounting plate 21 and slidingly matched with the guide groove 711, and the portion of the pin 212 located in the guide groove 711 is cylindrical. A limit table 213 capable of limiting the rightward swing of the movable push rod 71 is provided on the main tongue mounting plate 21. The upper end of the guide groove 711 is closed, and the second return spring 72 is obliquely connected between the movable push rod 71 and the main tongue mounting plate 21. When the dial wheel 41 of the lock core 4 is separated from the movable push rod 71, the second return spring 72 presses the movable push rod 71 against the limit table 213 through elastic force and presses the upper end of the guide groove 711 against the pin 212. The second return spring 72 generally adopts 1, 2 or 3.

[0051] The movable push rod 71 is installed on the main tongue mounting plate 21 through a floating guide mechanism, which can guide the movable push rod 71 in the up and down directions, and the movable push rod 71 can also swing around the above-mentioned pin 212. When the dial wheel 41 rotates clockwise and pushes the movable push rod 71 upward, if the dial wheel 41 rotates excessively to a position between the movable push rod 71 and the transmission member 3, the dial wheel 41 can be rotated counterclockwise by a key to push open the movable push rod 71 to avoid jamming.

[0052] In certain embodiments of the present invention, the above-mentioned floating guide mechanism may also adopt other structural forms, such as exchanging the positions of the guide groove 711 and the pin 212.

[0053] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. All equivalent structural changes made using the contents of the present invention's specification and drawings under the inventive concept of the present invention, or directly or indirectly applied in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. A lock body that is easy to open and close, characterized in that: The invention comprises a lock housing (1), wherein the lock housing (1) is provided with a lock core hole (11) for installing a lock core (4), and the lock housing (1) is provided with: A lock tongue assembly, comprising a main tongue mounting plate (21) and a main lock tongue (22) arranged on the main tongue mounting plate (21), wherein the lock tongue assembly can move leftward and rightward relative to the lock housing (1) so that the main lock tongue (22) can be extended out of or retracted into the lock housing (1); A transmission member (3), a guide structure capable of enabling the transmission member (3) to move along an arc track is arranged between the transmission member (3) and the lock housing (1), a push structure capable of cooperating with a thumbwheel (41) of a lock core (4) is arranged on the transmission member (3) so that the lock core (4) installed in the lock core hole (11) can push the transmission member (3) along the guide structure through the thumbwheel (41), a transmission structure is arranged between the transmission member (3) and the main tongue mounting plate (21), and when the transmission member (3) moves along the guide structure, the lock tongue assembly is driven to move left and right through the transmission structure; The guide structure comprises an arc-shaped groove arranged on the lock housing (1), and a guide pin arranged on the transmission member (3) and slidably matched with the arc-shaped groove; The guide pin comprises a first guide pin (301) located at the head end of the transmission member (3) and a second guide pin (302) located at the end of the transmission member (3), and the arc groove comprises a first arc groove (101) slidably matched with the first guide pin (301) and a second arc groove (102) matched with the second guide pin (302); The lock housing (1) is further provided with an inclined bolt assembly, the inclined bolt assembly comprising an inclined bolt mounting member (51) and an inclined locking bolt (52) arranged at one end of the inclined bolt mounting member (51), the inclined bolt assembly can move left and right relative to the lock housing (1) so that the inclined locking bolt (52) can be extended or retracted into the lock housing (1), and the lock housing (1) is provided with an inclined bolt retracting mechanism capable of retracting the inclined locking bolt (52) into the lock housing (1) after the main locking bolt (22) is retracted into the lock housing (1); The oblique tongue retracting mechanism comprises: A rotating member (6) is mounted on the lock housing (1), and when the rotating member (6) rotates, it pushes the oblique bolt mounting member (51) so that the oblique lock bolt (52) is retracted into the lock housing (1); A movable push rod (71) is mounted on the main tongue mounting plate (21). After the main lock tongue (22) is retracted into the lock housing (1), the dial wheel (41) of the lock cylinder (4) pushes the movable push rod (71) to move the movable push rod (71) upward and push the rotating member (6) to rotate. A second return spring (72) is provided between the main tongue mounting plate (21) and the movable push rod (71) for driving the movable push rod (71) to return to its original position.

2. A lock body that is easy to open and close according to claim 1, characterized in that: The first arc-shaped groove (101) and the second arc-shaped groove (102) are both circular arc grooves, and the first arc-shaped groove (101) and the second arc-shaped groove (102) are coaxial.

3. A lock body that is easy to open and close according to claim 2, characterized in that: The axis A of the first arc-shaped groove (101) deviates from the axis B of the thumbwheel (41) of the lock core (4).

4. A lock body that is easy to open and close according to claim 1, characterized in that: The transmission member (3) has an arc-shaped edge (32), and the transmission structure comprises a plurality of teeth (33) arranged on the arc-shaped edge (32), and a rack (211) arranged on the main tongue mounting plate (21) and meshing with the teeth (33).

5. The lock body that is easy to open and close according to claim 1, characterized in that: The movable push rod (71) is mounted on the main tongue mounting plate (21) via a floating guide mechanism so that the movable push rod (71) can move up and down and swing left and right relative to the main tongue mounting plate (21).

6. A lock body that is easy to open and close according to claim 5, characterized in that: The floating guide mechanism comprises a vertical guide groove (711) arranged on the movable push rod (71), and a pin (212) fixed on the main tongue mounting plate (21) and slidingly matched with the guide groove (711), and the part of the pin (212) located in the guide groove (711) is cylindrical.

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