CN215369200U - Double-open lock and handle thereof - Google Patents

Abstract

The utility model relates to a double-open lock and a double-open lock handle, wherein the double-open lock handle comprises a handle; the lock cylinder is fixed in a second limiting hole in the handle; a limiting ring; the handle seat, the spacing collar is fixed on the handle seat, the lock core with the spacing collar cooperation. The above-mentioned scheme that this application provided, cooperation through first key and lock core, can inject the locking lever in the second spacing inslot, thereby make and carry the hand (hold) and inject the activity in the second spacing inslot, cooperation through second key and lock core, can inject the locking lever on the second spacing inslot remove or with the spacing collar on the first spacing groove cooperation, thereby make and carry the hand (hold) and inject in the second spacing inslot or lock in first spacing groove, a lock core can cooperate two different keys, make the handle can be in a plurality of position locking, the function of carrying the hand (hold) has been enriched, need not to set up two lock core moulds simultaneously and can realize above-mentioned function, the die sinking cost of lock core has been practiced thrift.

Description

Double-open lock and handle thereof

Technical Field

The utility model relates to the technical field of parts for doors and windows, in particular to a double-opening lock and a double-opening lock handle.

Background

The handle is an operation part installed on door and window, takes the handle of key, and the operation of accessible key control handle realizes opening and closing of door and window to realize door and window theftproof function.

At present, the handle product of taking the key in the market, though can accomplish the locking of handle and open after rotatory round key, because the function is too single, does not make the application property performance of handle exert the maximize.

SUMMERY OF THE UTILITY MODEL

Therefore, it is necessary to provide a double-opening lock and a double-opening lock handle aiming at the problem of single function of the existing handle.

The utility model provides a double-opening lock, which comprises a first key, a second key and a lock core, wherein the lock core comprises a lock rod, a shell, a core body and a pin shaft, the core body is arranged in the shell, the lock rod is connected with the core body positioned at one end in the shell through the pin shaft, one end of the pin shaft is positioned on the lock rod, and the other end of the pin shaft is positioned in a third groove on the inner wall of the shell;

when the core body is locked by the first key relative to the shell, the first key can drive the core body to rotate along the axial direction of the shell, so that the pin shaft can move for a first distance along the length direction of the third groove, and the lock rod extends out of a first position relative to the shell;

when the core body is locked relative to the shell through the second key, the second key can drive the core body to rotate along the axial direction of the shell, so that the pin shaft can move for a second distance along the length direction of the third groove, and the lock rod extends out of a second position relative to the shell.

In one embodiment, an annular groove is formed in the side wall of the core, one end of the pin shaft penetrates through the annular groove to be connected with the lock rod, and the other end of the pin shaft is located in the third groove;

when the first key or the second key drives the core body to rotate, the pin shaft can move along the extending direction of the annular groove.

In one embodiment, the lock cylinder further comprises a plurality of spring pieces, the core body is provided with a plurality of sliding grooves, the sliding grooves extend along the radial direction of the core body, two ends of each sliding groove penetrate through the side wall of the core body, and the spring pieces are movably arranged in the sliding grooves;

the inner wall of the shell is provided with three first grooves, the three first grooves and one third groove are sequentially arranged at intervals of 90 degrees, each first groove is provided with a second groove on a first end face facing the shell, and the distance from the bottom surface of each second groove to the outer wall of the shell is smaller than the distance from the bottom surface of each first groove to the outer wall of the shell;

a fourth groove is formed in the first end face, facing the shell, of the third groove and communicated with the third groove;

when the core body is not locked relative to the shell, one end of the spring piece is positioned outside the sliding groove;

when the core body is matched with the first key, at least one spring piece close to one end of the key insertion hole on the core body is positioned in the fifth groove, and other spring pieces are positioned in the sliding groove under the driving of the first key;

when the core body is matched with the second key, the spring piece is driven by the second key to be located in the sliding groove.

The utility model also provides a double-unlocking-lock handle, which comprises the double-unlocking lock as described in any one of the embodiment description of the application, and further comprises

A handle is held;

the lock cylinder is fixed in a second limiting hole in the handle;

a limiting ring;

the limiting ring is fixed on the handle seat, and the lock cylinder is matched with the limiting ring;

when the lock rod is at the first position, along with the locking of the lock cylinder, one end of the lock rod, which is far away from the lock cylinder, is abutted against a second limiting end face on the limiting ring, and the lock rod can move on a second limiting groove formed by two boss side faces on the limiting ring and the second limiting end face;

when the lock rod is at the second position, along with the locking of the lock cylinder, one end of the lock rod, which is far away from the lock cylinder, is matched with the first limiting groove on the limiting ring.

In one embodiment, the limiting ring comprises a hollow cylinder and bosses, the bosses are arranged on one side of the hollow cylinder facing the lock rod, and the side surfaces of the two bosses are correspondingly positioned on the two sides of the bosses;

the second limiting end face is positioned on one side, facing the lock rod, of the hollow cylinder; the first limiting groove is located on the side wall of the hollow cylinder.

In one embodiment, a first limiting end surface is arranged on the boss, and when the lock cylinder is in the initial position, the lock rod is in clearance fit with the first limiting end surface.

In one embodiment, the middle position of the arc surface where the first limiting end surface is located along the radius direction, the middle position of the arc surface where the second limiting end surface is located along the radius direction, and the first limiting groove are located at the same diameter.

In one embodiment, the handle comprises a handle seat cover which is covered on the handle seat and a handle seat cushion which is accommodated in the handle seat and used for fixing the teeth on the double-unlocking handle;

one side of the limiting ring, which is far away from the handle, is matched with the bulge on the handle seat after penetrating through the handle seat cover.

In one embodiment, the handle further comprises a washer disposed between the stop collar and the handle cover.

In one embodiment, the gear comprises a square steel, and the square steel is connected with the gear teeth.

The beneficial effects of the utility model include:

above-mentioned two lock handles, cooperation through first key and lock core, can inject the locking lever in the second spacing inslot, thereby make and carry the hand (hold) and inject the activity in the second spacing inslot, cooperation through second key and lock core, can inject the locking lever on the second spacing inslot remove or with the spacing collar on the first spacing groove cooperation, thereby make and carry the hand (hold) and inject in the second spacing inslot or lock in first spacing groove, a lock core can cooperate two different keys, make the handle can lock in a plurality of positions, the function of carrying the hand (hold) has been enriched, need not to set up two sets of lock core moulds simultaneously and can realize above-mentioned function, the die sinking cost of lock core has been practiced thrift.

Drawings

Fig. 1 is a schematic structural view of a double-open lock handle according to an embodiment of the present invention;

FIG. 2 is a schematic view of the handle of FIG. 1;

FIG. 3 is a schematic view of the handle of FIG. 1 engaged with a first key;

FIG. 4 is a schematic view of the lock cylinder and the stop collar shown in FIG. 3;

FIG. 5 is a schematic illustration of the first key of FIG. 4 after locking;

FIG. 6 is a schematic view of the handle of FIG. 1 engaged with a second key;

FIG. 7 is a schematic illustration of the second key of FIG. 6 after locking;

FIG. 8 is an exploded view of the lock cylinder of FIG. 1;

FIG. 9 is a cross-sectional view of the lock cylinder of FIG. 1;

FIG. 10 is a cross-sectional view of the lock cylinder of FIG. 1 before and after locking by a first key;

FIG. 11 is a schematic view of the first key of FIG. 10;

FIG. 12 is a cross-sectional view of the lock cylinder of FIG. 1 before and after locking by a second key;

FIG. 13 is a schematic view of the second key of FIG. 12;

FIG. 14 is a schematic view of a housing on the lock cylinder of FIG. 1;

FIG. 15 is a schematic illustration of the mating of the shell and core of FIG. 8;

FIG. 16 is a schematic view of the stop collar of FIG. 1;

FIG. 17 is yet another schematic view of the housing on the lock cylinder of FIG. 1.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the utility model.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

As shown in fig. 8 in combination with fig. 11 and 13, in an embodiment of the present invention, a double-unlocking lock is provided, which includes a first key 100 and a second key 200, and further includes a lock cylinder 20, where the lock cylinder 20 includes a lock rod 201, a housing 202, a core 203, and a pin 205, where the core 203 is disposed in the housing 202, the lock rod 201 is connected to the core 203 at one end inside the housing 202 through the pin 205, one end of the pin 205 is located on the lock rod 201, and the other end is located in a third groove 2023 on the inner wall of the housing 202; when the core 203 is locked by the first key with respect to the housing 202, the first key can drive the core 203 to rotate along the axial direction of the housing 202, so that the pin 205 can move a first distance along the length direction of the third groove 2023, and the lock rod 201 extends out of a first position with respect to the housing 202; when the core 203 is locked by the second key with respect to the housing 202, the second key can drive the core 203 to rotate along the axial direction of the housing 202, so that the pin 205 can move a second distance along the length direction of the third groove 2023, and the lock rod 201 is extended out of a second position with respect to the housing 202.

Further, as shown in fig. 8 in combination with fig. 14 and 15, an annular groove 2031 is provided on a side wall of the core 203, one end of the pin 205 passes through the annular groove 2031 to be connected to the lock rod 201, and the other end is located in the third groove 2023; when the core 203 is rotated by the first key or the second key, the pin 205 can move along the extending direction of the annular groove 2031.

Specifically, when the core 203 is rotated along the axial direction of the housing 202 by the first key, the pin 205 moves along with the rotation of the core 203 in the length direction of the third groove 2023 by a first distance, and at this time, the lock rod 201 extends out of a first position relative to the housing 202; when the core 203 is rotated along the axial direction of the housing 202 by the second key, the pin 205 moves along the length direction of the third groove 2023 by a second distance along with the rotation of the core 203, and at this time, the lock rod 201 extends out of a second position relative to the housing 202.

In some embodiments, as shown in fig. 8 in combination with fig. 14 and 15, the lock cylinder 20 in the present application further includes a plurality of spring strips 204, the core 203 is provided with a plurality of sliding grooves 2032, the sliding grooves 2032 extend along a radial direction of the core 203, both ends of the sliding grooves 2032 penetrate through a side wall of the core 203, and the spring strips 204 are movably disposed in the sliding grooves 2032;

three first grooves 2021 are formed in the inner wall of the housing 202, the three first grooves 2021 and one third groove 2023 are sequentially arranged at intervals of 90 degrees, a second groove 2022 is formed in a first end face, facing the housing 202, of each first groove 2021, and the distance from the bottom surface of each second groove 2022 to the outer wall of the housing 202 is smaller than the distance from the bottom surface of each first groove 2021 to the outer wall of the housing 202;

a fourth groove 2024 is formed in a first end surface of the third groove 2023 facing the housing 202, and the fourth groove 2024 communicates with the third groove 2023; when the core 203 is unlocked relative to the housing 202, one end of the spring plate 204 is located outside the chute 2032; when the core 203 is engaged with the first key, at least one spring 204 near one end of the key insertion hole on the core 203 is located in the second groove 2022, and the other spring 204 is located in the sliding groove 2032 under the driving of the first key; when the core 203 is engaged with a second key, the spring strips 204 are located in the sliding grooves 2032 under the driving of the second key.

Specifically, the connecting structure of the spring plate 204 and the core 203 is the prior art, and will not be described in detail herein; as shown in fig. 17, when the core 203 is in the initial state, one end of the spring piece 204 away from the sliding groove 2032 abuts against the protrusion 2025 on the inner wall of the housing 202; when the core 203 is engaged with the first key 100, at least one spring plate 204 near one end of the key insertion hole of the core 203 is in an initial state, and when the core 203 is locked with respect to the housing 202 by the first key 100, at least one spring plate 204 near one end of the key insertion hole of the core 203 is located in the fifth groove 2026, and the other spring plates 204 are located in the core 203; when the core 203 is engaged with the second key 200, the spring pieces 204 are each retracted into the core 203.

Further, in the present application, there are five spring pieces 204, and the five spring pieces 204 are disposed on the core 203 along the axial direction of the core 203, and since the assembly structure of the spring pieces 204 and the core 203 is the prior art, the description is not repeated here;

when the core 203 is unlocked with respect to the housing 202, the spring tabs 204 abut against the protrusions 2025 on the inner wall of the housing 202; when the first key 100 is inserted into the core 203, as shown in fig. 10 and 11 in combination with fig. 14, because the groove 1001 is formed on the key shaft of the first key 100 near one end of the key holder, two spring strips 204 near one end of the key insertion hole on the core 203 are in the initial state, and the other three spring strips 204 are retracted into the core 203 (as shown in a in fig. 10), when the first key 100 is rotated to two positions of 0 ° and 90 °, two spring strips 204 near one end of the key insertion hole on the core 203 are located in the fifth groove 2026, and the other three spring strips 204 are located in the core 203 (as shown in B in fig. 10), at this time, the lock lever 201 is extended to the first position relative to the housing 202; when the second key 200 is inserted into the core 203, as shown in fig. 12 and 13 in combination with fig. 14, since the protrusion 2001 is formed on the key shaft of the second key 200 near one end of the key holder, the spring strips 204 on the core 203 are retracted into the core 203 (as shown in a view in fig. 12), when the second key 200 is rotated to two positions of 0 ° and 90 °, two spring strips 204 near one end of the key insertion hole on the core 203 are located in the second groove 2022, and the other three spring strips 204 are located in the first groove 2021 (as shown in B view in fig. 12), when the second key 200 is reinserted into the core 203 and rotated to 180 °, all the spring strips 204 are located in the second groove 2022, and the lock lever 201 is extended to the second position relative to the housing 202.

It should be noted that, how the key drives the lock rod to move belongs to the prior art, for example, the application numbers are: 201520202325.8 the rotatory ejector pin of driving about through the rotatory locking structure of key is descended in the flat-open window handle of disclosing, the ejector pin of here is equivalent to the locking lever in this application, and the locking structure is equivalent to the lock core in this application, consequently, how to drive the locking lever motion here to the key and no longer describe tiredly.

In some embodiments, as shown in fig. 8 and 9, the lock cylinder 20 in the present application further includes a steel ball 206 and a spring 207, the lock rod 201 is connected to one end of the core 203 far away from the key insertion hole through a pin 205, the steel ball 206 is disposed on a side wall of the core 203, and the pin 205 passes through the core 203 along an axial direction perpendicular to the core 203 and abuts against the steel ball 206 through the spring 207;

it should be noted that, here, the connection structure of the lock lever 201, the core 203, the pin 205, the steel ball 206, and the spring 207 is a connection structure of a lock structure and a top lever disclosed in a flat-open window handle of, for example, application No. 201520202325.8, and therefore, specific connection relations of the above components are not described here again.

As shown in fig. 1 in combination with fig. 2, 4, 5, 7, 15, and 16, in an embodiment of the present invention, there is provided a double lock handle, including a double lock according to any one of the embodiments of the present invention, and further including a handle 10; the lock core 20 is fixed in a second limit hole 102 on the handle 10; a stop collar 30; the handle seat 60, the spacing collar 30 is fixed on the handle seat 60, and the lock core 20 is matched with the spacing collar 30; when the lock rod 201 is at the first position, along with the locking of the lock cylinder 20, one end of the lock rod 201, which is far away from the lock cylinder 20, abuts against the second limiting end face 302 on the limiting ring 30, and the lock rod 201 can move on a second limiting groove formed by two boss side faces 3051 on the limiting ring 30 and the second limiting end face 302; when the lock rod 201 is in the second position, the first limit groove 303 on the limit ring 30 at one end of the lock rod 201 far away from the lock cylinder 20 is matched with the lock cylinder 20.

Specifically, when the core 203 is unlocked relative to the housing 202, the spring plate 204 abuts against the protrusion 2025 on the inner wall of the housing 202, and at this time, one end of the lock rod 201, which is far away from the lock cylinder 20, is in clearance fit with the first limiting end surface 301 on the limiting ring 30, so that the handle 10 can rotate freely;

after the first key 100 is inserted into the core 203, when the first key 100 is rotated to two positions of 0 ° and 90 °, two of the spring strips 204 near one end of the key insertion hole on the core 203 are located in the fifth groove 2026, and the other three spring strips 204 are located in the core 203 (as shown in fig. 10B), at this time, the lock lever 201 is extended to the first position relative to the housing 202, and at the same time, since the lock lever 201 can move on the second limit groove formed by the two boss side surfaces 3051 and the second limit end surface 302 on the limit ring 30, when the first key 100 is rotated to 90 °, the lock lever 305201 is defined at the corner formed by the other boss side surface 3051 and the second limit end surface 302, the handle 10 can be locked at two positions of 0 ° and 90 ° (as shown in fig. 3);

after the second key 200 is inserted into the core 203, when the second key 200 is rotated to two positions of 0 ° and 90 °, two of the spring strips 204 near one end of the key insertion hole on the core 203 are located in the fifth groove 2026, and the other three spring strips 204 are located in the first groove 2021 (as shown in fig. 12B), that is, when the core 203 can be fixed at two positions of 0 ° and 90 ° relative to the housing 202, the fixing manner is the same as the principle of the first position fixing manner, and not described herein, when the second key 200 is reinserted into the core 203 and rotated to 180 °, all four spring strips 204 are located in the first groove 2021, and when the lock rod 201 is extended to the second position relative to the housing 202, and the lock rod 201 is extended into the first stopper groove 303 on the stopper ring 30 (as shown in fig. 6).

It should be noted that the principle of how the handle can be locked in the corresponding position is the prior art, and will not be described herein again, for example, as disclosed in the handle of the casement window with application number 201520202325.8: the push rod is abutted to the notch of the clamping groove ring, the rotatable handle is locked, and the handle cannot rotate.

Adopt above-mentioned technical scheme, through the cooperation of first key and lock core, can inject the locking lever in the second spacing inslot, thereby make and carry the hand (hold) and inject the activity in the second spacing inslot, through the cooperation of second key and lock core, can inject the locking lever on the second spacing inslot remove or with the cooperation of the first spacing groove on the spacing collar, thereby make and carry the hand (hold) and inject in the second spacing inslot or lock in first spacing groove, a lock core can cooperate two different keys, make the handle can lock in a plurality of positions, the function of carrying the hand (hold) has been enriched, need not to set up two lock core moulds simultaneously and can realize above-mentioned function, the die sinking cost of lock core has been practiced thrift.

In some embodiments, as shown in fig. 5, the stop collar 30 of the present application includes a hollow cylinder 304 and a boss 305, the boss 305 is disposed on a side of the hollow cylinder 304 facing the lock lever 201; wherein the first limiting end surface 301 is located on a side of the boss 305 away from the hollow cylinder 304; the second limit end face 302 is positioned on one side of the hollow cylinder 304 facing the lock rod 201; the first restraint groove 303 is located on the side wall of the hollow cylinder 304.

Further, the arc surface where the second limiting end surface 302 is located is a 180-degree arc surface, and the first limiting end surface 301 and the second limiting end surface 302 are oppositely arranged.

In some embodiments, the middle position of the arc surface of the first limiting end surface 301 in the radial direction, the middle position of the arc surface of the second limiting end surface 302 in the radial direction, and the first limiting groove 303 in the present application are all located at the same diameter, and when the lock cylinder 20 is at the initial position, the lock rod 201 abuts against the first limiting end surface 301.

In some embodiments, as shown in fig. 1, the handle of the present application further includes a handle base cover 50 covering the handle base 60 and a handle seat cushion 70 received in the handle base 60 to fix the wheel 80; the side of the stop collar 30 away from the handle 10 is matched with the protrusion 601 on the handle base 60 after passing through the handle base cover 50.

Further, still include packing ring 40 and square steel 90, packing ring 40 sets up between spacing collar 30 and handle seat cover 50, and square steel 90 is connected with wheel 80.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (10)

1. The double-unlocking lock comprises a first key and a second key, and is characterized by further comprising a lock cylinder (20), wherein the lock cylinder (20) comprises a lock rod (201), a shell (202), a core body (203) and a pin shaft (205), the core body (203) is arranged in the shell (202), the lock rod (201) is connected with the core body (203) positioned at one end in the shell (202) through the pin shaft (205), one end of the pin shaft (205) is positioned on the lock rod (201), and the other end of the pin shaft is positioned in a third groove (2023) in the inner wall of the shell (202);

when the core body (203) is locked by the first key relative to the housing (202), the first key can drive the core body (203) to rotate along the axial direction of the housing (202), so that the pin shaft (205) can move a first distance along the length direction of the third groove (2023), and the lock rod (201) extends out of a first position relative to the housing (202);

when the core body (203) is locked relative to the shell (202) through the second key, the second key can drive the core body (203) to rotate along the axial direction of the shell (202), so that the pin shaft (205) can move a second distance along the length direction of the third groove (2023), and the lock rod (201) extends out of a second position relative to the shell (202).

2. The double lock according to claim 1, wherein the core (203) is provided with an annular groove (2031) on the side wall, one end of the pin (205) passes through the annular groove (2031) to connect with the lock rod (201), and the other end is located in the third groove (2023);

when the core body (203) is driven to rotate by the first key or the second key, the pin shaft (205) can move along the extending direction of the annular groove (2031).

3. The double lock according to claim 1, wherein the lock cylinder (20) further comprises a plurality of spring plates (204), the core (203) is provided with a plurality of sliding grooves (2032), the sliding grooves (2032) extend along the radial direction of the core (203), both ends of the sliding grooves (2032) penetrate through the side wall of the core (203), and the spring plates (204) are movably arranged in the sliding grooves (2032);

three first grooves (2021) are formed in the inner wall of the shell (202), the three first grooves (2021) and one third groove (2023) are sequentially arranged at intervals of 90 degrees, a second groove (2022) is formed in each first groove (2021) on the first end face facing the shell (202), and the distance from the bottom face of each second groove (2022) to the outer wall of the shell (202) is smaller than the distance from the bottom face of each first groove (2021) to the outer wall of the shell (202);

a fourth groove (2024) is arranged on a first end face, facing the shell (202), of the third groove (2023), and the fourth groove (2024) is communicated with the third groove (2023);

when the core (203) is unlocked relative to the shell (202), one end of the spring plate (204) is positioned outside the chute (2032);

when the core (203) is matched with the first key, at least one spring piece (204) close to one end of a key insertion hole on the core (203) is positioned in a fifth groove (2026), and the other spring pieces (204) are positioned in the sliding groove (2032) under the driving of the first key;

when the core body (203) is matched with the second key, the spring pieces (204) are all positioned in the sliding grooves (2032) under the driving of the second key.

4. A double lock handle comprising the double lock of any of claims 1-3, further comprising

A handle (10);

the lock cylinder (20) is fixed in a second limiting hole (102) on the handle (10);

a spacing collar (30);

the handle base (60), the spacing ring (30) is fixed on the handle base (60), and the lock cylinder (20) is matched with the spacing ring (30);

when the lock rod (201) is located at a first position, along with the locking of the lock cylinder (20), one end, far away from the lock cylinder (20), of the lock rod (201) is abutted to a second limiting end face (302) on the limiting ring (30), and the lock rod (201) can move on a second limiting groove formed by two boss side faces (3051) on the limiting ring (30) and the second limiting end face (302);

when the lock rod (201) is located at the second position, along with the locking of the lock cylinder (20), one end, far away from the lock cylinder (20), of the lock rod (201) is matched with the first limiting groove (303) on the limiting ring (30).

5. A double lock handle according to claim 4, wherein the stop collar (30) comprises a hollow cylinder (304) and a boss (305), the boss (305) is disposed on a side of the hollow cylinder (304) facing the lock rod (201), and two boss sides (3051) are correspondingly disposed on two sides of the boss (305);

the second limit end face (302) is positioned on one side of the hollow cylinder (304) facing the lock rod (201); the first limiting groove (303) is positioned on the side wall of the hollow cylinder (304).

6. A double release lock handle according to claim 5, wherein the boss (305) is provided with a first stop face (301), and the lock bar (201) is in clearance fit with the first stop face (301) when the lock cylinder (20) is in the initial position.

7. A double lock handle according to claim 6, wherein the first limiting surface (301) is located at a middle position of the arc surface along the radius direction, the second limiting surface (302) is located at a middle position of the arc surface along the radius direction, and the first limiting groove (303) are located at the same diameter.

8. A double lock handle according to claim 4, further comprising a handle base cover (50) covering the handle base (60) and a handle seat (70) received in the handle base (60) to secure a wheel (80) on the double lock handle;

one side of the limiting ring (30) far away from the handle (10) is matched with the bulge (601) on the handle seat (60) after penetrating through the handle seat cover (50).

9. A double lock handle according to claim 8, further comprising a washer (40), the washer (40) being disposed between the stop collar (30) and the handle base cover (50).

10. A double lock handle according to claim 8, further comprising a square steel (90), the square steel (90) being connected to the teeth (80).

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