Internal lock mechanism based on handle lock

Abstract

The utility model discloses an internal lock mechanism based on a handle lock, which comprises a shell and a pulling rod which is positioned in the shell and moves up and down, the pulling rod extends out from the top end or the bottom end of the shell through pressing parts at two ends, and a shifting fork and a lock cylinder transmission piece on the pulling rod are respectively pulled to move relatively during movement; according to the inner lock mechanism based on the handle lock, the structure is simple, the assembly is convenient to replace, and firstly, a movable clamping piece is matched with a sliding lock cylinder transmission piece to achieve closing and opening of an inner lock body; secondly, the clamping pieces are matched with the guide grooves in the shifting forks, so that linkage of multiple groups of components is achieved, and movement of the shifting forks between the components is effectively controlled; and finally, by increasing the structural limiting compactness of the moving end and the fixed end, the flexible composition of the structure is realized.

Description

Technical Field

[0001] The utility model relates to the field of door and window hardware accessories, in particular to an inner locking mechanism based on a handle lock. Background Art

[0002] Traditional door and window strip locks are generally composed of a panel, a switch slider, a lever and a fork. The switch slider is pushed up and down to drive the lever to pull the fork through the transmission structure to open and close the door and window. Some strip locks are combined with handles to form handle locks. However, the switch slider of the current handle lock is generally set in the handle part of the handle lock. The space in the handle part is small, which makes the operation of opening and closing inconvenient, and the status identification is unclear, affecting the user experience.

[0003] To this end, based on the structure of CN215212783U, the inner lock body is further improved, thereby proposing an inner lock mechanism based on a handle lock with a compact structure and convenient component replacement. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide an inner locking mechanism based on a handle lock to meet the current needs of the general public.

[0005] The purpose of the utility model can be achieved through the following technical solutions:

[0006] An inner locking mechanism in a handle lock, comprising:

[0007] A housing and a pull rod located in the housing and moving up and down, wherein the pull rod extends from the top end or the bottom end of the housing through pressing parts at both ends, and during the movement, the pull rod respectively pulls the shift fork on the pull rod and the lock core transmission member to move relative to each other;

[0008] The pull rod further includes a fork portion and a lock core portion, wherein the fork portion includes a moving end and a fixed end, the fixed end limits the moving end through a placement groove and a stopper, one side of the stopper presses against the inner wall of the placement groove through an elastic member, and the other side presses against the moving end, the moving end moves relatively on the fixed end, and a stopper portion is provided on the moving end to fit and slide on the placement groove, and during the movement of the stopper portion, the stopper portion is squeezed from top to bottom to contract, and the lock core portion is located below the fork portion;

[0009] A shift fork connected to the shift fork portion;

[0010] The lock core transmission member is connected to the lock core part and is transmission-connected to the outer lock member through a transmission rod.

[0011] Furthermore, the placement groove includes groove one, groove two and groove three from the inside to the outside, the main body of the moving end moves in the groove three, and the locking part that fits in the movable groove two presses against the locking piece in the groove one.

[0012] Furthermore, the moving end also has an upper limit portion, the slot three extends with a latch groove matching the upper limit portion, the latch groove is connected to the placement groove, the upper limit portion is provided with a groove, and the latch groove is provided with a positioning edge matching the groove.

[0013] Furthermore, a fitting position is formed between the latch slot and the slot three, and the upper limit portion is fixed at the fitting position by means of a cushion layer and a fitting edge to form a stable structural surface.

[0014] Furthermore, the matching groove formed between the matching edge and the matching position, the matching groove and the clamping groove in the upper limit portion form the matching end of the shift fork, and the shift fork is clamped on the matching groove and the clamping groove respectively through the protrusion.

[0015] Furthermore, a guide groove is provided on the back of the shift fork, and the guide groove presses against the locking member, and the locking member passes through the first groove, and the first groove is provided with a movable frame hole that fits the locking member, and the guide groove includes a pressing end and a movable end extending outward.

[0016] Furthermore, one side of the locking portion is in an inclined shape, and the locking piece and the second groove are respectively provided with matching surfaces matching the inclined angle.

[0017] Furthermore, the lock core portion is provided with a sliding tooth groove, and the sliding tooth groove is transmission-connected to the lock core transmission member.

[0018] Furthermore, the fixed end is fixed on the shell, and the moving end and the two sides of the lock core part are pressing parts that can be separated and combined, and the moving end and the lock core part are separated and combined.

[0019] Beneficial effects of the utility model:

[0020] The utility model provides an inner locking mechanism based on the handle lock, and the product has a simple structure and convenient component replacement.

[0021] First, the inner lock body is closed and opened by means of a movable latching member cooperating with a sliding lock core transmission member;

[0022] Secondly, by cooperating with the guide groove in the fork through the positioning piece, multiple groups of linkage between components are realized, and the movement of the fork between components is effectively controlled;

[0023] Finally, by increasing the compactness of the structural limit between the moving end and the fixed end, flexible composition and strong stability of the structure are achieved. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0025] Figure 1 This is one of the overall structural diagrams of the utility model;

[0026] Figure 2 This is the second schematic diagram of the overall structure of the utility model;

[0027] Figure 3 This is the third schematic diagram of the overall structure of the utility model;

[0028] Figure 4 This is one of the schematic diagrams of the explosion structure of the fork part in the utility model;

[0029] Figure 5 This is the second schematic diagram of the explosion structure of the fork part in the utility model;

[0030] Figure 6 It is a schematic diagram of the placement slot structure in the utility model.

[0031] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] according to Figure 1-Figure 6 As shown,

[0034] An inner locking mechanism in a handle lock includes a housing 10 and a lever 20 located in the housing 10 and moving up and down, and the lever 20 extends from the top or bottom end of the housing 10 through pressing parts 30 at both ends, and during the movement, the lever 20 pulls the fork 40 and the lock core transmission member 50 on the lever 20 to move relative to each other;

[0035] The lever 20 also includes a fork portion 1 and a lock core portion 2, wherein the fork portion 1 includes a moving end 11 and a fixed end 12, the fixed end 12 limits the moving end 11 through a placement groove 121 and a stopper 122, one side of the stopper 122 is pressed against the inner wall of the placement groove 121 through an elastic member 123, and the other side presses the moving end 11, the moving end 11 moves relatively on the fixed end 12, and the moving end 11 is provided with a stopper 111 that fits and slides on the placement groove 121, and during the movement of the stopper 111, the stopper 122 is squeezed from top to bottom to contract, and the lock core portion 2 is located below the fork portion 1;

[0036] A shift fork 40, connected to the shift fork portion 1;

[0037] The lock core transmission member 50 is connected to the lock core portion 2 and is transmission-connected to the outer locking member 100 via a transmission rod 501 .

[0038] Specifically, in order to ensure the compactness and stability of the structure, the placement groove 121 includes groove one 1211, groove two 1222 and groove three 1223 from the inside to the outside, wherein the main body of the moving end 11 moves in groove three 1223, and the movable locking part 111 engaged in groove two 1222 is pressed against the locking part 122 of groove one 1211. In this structure, groove three 1223 is formed by the protrusion 13 on the fixed end 12, and the sliding closing and unlocking state is completed through the basic three groups of grooves.

[0039] With the improvement of the above structure, the moving end 11 also has an upper limit portion 112. In order to fit the upper limit portion 112, the groove three 1223 is extended with a pin groove 124 that matches the upper limit portion 112. The pin groove 124 is connected to the placement groove 121, so that the moving end 11 forms a T-shaped sliding form. At the same time, in order to further stabilize the structure, a groove 1121 is provided on the upper limit portion 112, and a positioning edge 1241 matching the groove 1121 is provided on the pin groove 124. In this structure, the T-shaped moving end 11 forms a stable triangular contact surface under the restriction of the fixed end 12, and the component is more compact. Secondly, with the groove 1121, the fit between the two structures is better.

[0040] Specifically, a fitting position 125 is formed between the latch slot 124 and the slot three 1223, and the upper limit portion 112 is fixed at the fitting position 125 through the cushion layer 113 and the fitting edge 114 to form a stable structural surface, which is limited between the components in this structure.

[0041] Specifically, the mating groove 200 is formed between the mating edge 114 and the mating position 125, and the mating groove 200 and the snap-in groove 300 in the upper limit portion 112 form the mating end of the fork 40, and the fork 40 is snap-connected to the mating groove 200 and the snap-in groove 300 respectively through the protrusion 401. In this structure, the protrusion 401 is diagonally designed. In this structure, the diagonal protrusion 401 can better ensure the stability of the fork 40.

[0042] Specifically, the shift fork 40 is further provided with a guide groove 402, which is located on the back side for pressing the locking member 122. In the present structure, the locking member 122 passes through the slot 1211, and the slot 1211 is provided with a frame hole 400 that fits the activity of the locking member 122. The guide groove 402 includes a pressing end 4021 and an outwardly extending movable end 4022. By the locking of the locking member 122 at the pressing end 4021, a matching groove 200 and a clamping groove 300 are formed with the locking member 122 as the axis, and the shift fork 40 cooperates with the locking member 122, which play a locking role. When the locking member 122 is contracted by force, when the locking member 122 moves from the pressing end 4021 to the movable end 4022, the control effect of the axis is broken, so that the movable end 11 can pull the shift fork 40 to move, and the locking member 122 is the control end for the linkage of many components in the present structure.

[0043] In this structure, one side of the locking portion 111 is in an inclined shape, and the locking piece 122 and the groove 1222 are respectively matched with the inclination, and both are provided with matching surfaces. When the contact surfaces of the locking portion 111 and the locking piece 122 are both in an inclined state, the locking piece 122 can be better squeezed into a retractable shape.

[0044] Specifically, the lock core part 2 is provided with a sliding tooth groove 21, which is in transmission connection with the lock core transmission member 50. Because in the above structure, the movement is performed in a sliding manner, and the lock core part 2 is rotated in the sliding tooth groove 21 through a gear part, when the pull rod 20 moves, the lock core transmission member 50 also rotates accordingly.

[0045] Specifically, the fixed end 12 is fixed on the housing 10, and the moving end 11 and both sides of the lock core part 2 are press parts 30 that can be assembled separately. At the same time, the moving end 11 and the lock core part 2 are also assembled separately.

[0046] The housing 10 is provided with opening and closing grooves respectively matching the internal components, and is also provided with a sealing plate.

[0047] The pressing portion 30 has an identification pattern for distinguishing whether it is locked or unlocked.

[0048] When in use, on the indoor side, you can directly press the two ends of the lever to operate the lever to slide up and down, so as to open or close the handle lock. On the outdoor side, insert the key into the lock core, and drive the transmission rod to rotate, and cooperate with the transmission gear and transmission rack to drive the lever to move downward to achieve locking. When you need to open it, just use the key to operate in the opposite direction.

[0049] The above description is only a preferred embodiment of the utility model, and does not limit the patent scope of the utility model. All equivalent structural changes made by using the contents of the utility model specification and drawings under the utility model concept, or directly / indirectly used in other related technical fields are included in the patent protection scope of the utility model.

Claims

1. An internal locking mechanism based on a handle lock, characterized in that: include: A housing and a lever that moves up and down in the housing, wherein the lever extends from the top or bottom end of the housing through pressing portions at both ends and pulls the shift fork and the lock core transmission member on the lever to move relative to each other during movement; The pull rod further includes a fork portion and a lock core portion, wherein the fork portion includes a moving end and a fixed end, the fixed end limits the moving end through a placement groove and a stopper, one side of the stopper presses against the inner wall of the placement groove through an elastic member, and the other side presses against the moving end, the moving end moves relatively on the fixed end, and a stopper portion is provided on the moving end to fit and slide on the placement groove, and during the movement of the stopper portion, the stopper portion is squeezed from top to bottom to contract, and the lock core portion is located below the fork portion; A shift fork connected to the shift fork portion; The lock core transmission member is connected to the lock core part and is transmission-connected to the outer lock member through a transmission rod.

2. The inner locking mechanism in the handle lock according to claim 1, characterized in that: The placement groove includes groove one, groove two and groove three from the inside to the outside. The main body of the moving end moves in the groove three, and the locking part that fits in the movable groove two presses against the locking piece in the groove one.

3. The inner locking mechanism in the handle lock according to claim 2, characterized in that: The moving end also has an upper limit portion, the slot three extends with a latch groove matching the upper limit portion, the latch groove is connected to the placement groove, the upper limit portion is provided with a groove, and the latch groove is provided with a positioning edge matching the groove.

4. The inner locking mechanism in the handle lock according to claim 3, characterized in that: A fitting position is formed between the latch slot and the slot three, and the upper limit portion is fixed at the fitting position by means of a cushion layer and a fitting edge to form a stable structural surface.

5. The inner locking mechanism in the handle lock according to claim 4, characterized in that: The matching groove formed between the matching edge and the matching position, the matching groove and the clamping groove in the upper limit portion form the matching end of the shift fork, and the shift fork is respectively clamped on the matching groove and the clamping groove through the protrusion.

6. The inner locking mechanism in the handle lock according to claim 2, characterized in that: A guide groove is also provided on the back of the shift fork, and the guide groove presses against the locking piece, and the locking piece passes through the first groove, and the first groove is provided with a movable frame hole that fits the locking piece, and the guide groove includes a pressing end and a movable end extending outward.

7. The inner locking mechanism in the handle lock according to claim 2, characterized in that: One side of the locking portion is in an inclined shape, and the locking piece and the second groove are respectively provided with matching surfaces matching the inclined angle.

8. The inner locking mechanism in a handle lock according to claim 1, characterized in that: The lock core part is provided with a sliding tooth groove, and the sliding tooth groove is transmission-connected with the lock core transmission member.

9. The inner locking mechanism in a handle lock according to claim 1, characterized in that: The fixed end is fixed on the housing, and the moving end and the two sides of the lock core part are pressing parts that can be separated and combined, and the moving end and the lock core part are separated and combined.

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