CN112796586A - Reversing lock - Google Patents

Abstract

The invention relates to the technical field of locks, and provides a reversing lock which comprises: the handle is pivoted on the shell through a pivot, a rotating part, a first pushing part and an elastic part are arranged on the pivot, the first pushing part is arranged on the rotating part and can rotate around the pivot along with the rotating part; the shell is provided with a first position and a second position for placing the elastic piece respectively, and the first position and the second position are respectively positioned on a moving path of the first pushing part. The handle can be used at the first working position or the second working position by adjusting the elastic piece at the first position and the second position, and the adjustment is very convenient.

Description

Reversing lock

Technical Field

The invention belongs to the technical field of locks, and particularly relates to a reversing lock.

Background

The lockset is widely applied in modern life. The handle of the existing lockset is usually set to be a left handle or a right handle when the existing lockset leaves a factory, and the handle generally has only one unlocking/locking position (unlocking/locking position: when the handle is in the position, the handle is usually rotated to unlock and release the handle lock), and if the unlocking/locking position of the handle is required to be modified, the handle is very difficult.

Disclosure of Invention

The invention aims to provide a reversing type lockset to solve the technical problem that the unlocking/locking position of a handle is very difficult to modify in the prior art.

In order to achieve the purpose, the invention adopts the technical scheme that: a reversible lock is provided comprising: the handle is pivoted on the shell through a pivot, the rotating part is arranged on the pivot, the first pushing part is arranged on the rotating part and can rotate around the pivot along with the rotating part, and the elastic part is arranged on the first pushing part; the shell is provided with a first position and a second position for placing the elastic piece respectively, and the first position and the second position are respectively positioned on a moving path of the first pushing part.

Further, the elastic piece is a cylindrical return spring; the casing is provided with a sleeve part sleeved on the pivot; the reset spring is sleeved on the sleeve part; the return spring is switchable around the sleeve portion between the first position and the second position; the two ends of the return spring are respectively a first end and a second end; a first stop member and a second stop member are respectively arranged on the shell on two opposite sides of the sleeve part; the second stop piece is detachably fixed on the shell; the first end is positioned on a rotating path of the first pushing part;

when the return spring rotates to the first position, a first end of the return spring abuts against the first stop member, and a second end of the return spring abuts against the second stop member; the first stopper, the second stopper, and the first pushing portion are respectively located in the same section between the first end and the second end in the rotational direction of the return spring;

when the return spring rotates to the second position, a first end of the return spring abuts against the second stop member, and a second end of the return spring abuts against the first stop member; the first stopper, the second stopper, and the first pushing portion are respectively located in the same section between the first end and the second end in the rotational direction of the return spring.

Further, when the first pushing part pushes the return spring to rotate from the first position to the second position, the pivot shaft rotates ninety degrees to one hundred eighty degrees.

Further, the return spring is a torsion spring.

Furthermore, a clamping groove extending along the extension direction of the pivot shaft is formed in the pivot shaft, and a boss clamped in the clamping groove is arranged on the rotating piece; the pivot is sleeved with a nut, and the rotating piece is clamped between the nut and the sleeve portion.

Further, the first pushing portion is located at a distance from the pivot axis that is less than a distance of the first stopper from the pivot axis, and the first pushing portion is located at a distance from the pivot axis that is less than a distance of the second stopper from the pivot axis.

Further, the first stop member is a screw threadedly connected with the housing, and/or the second stop member is a screw threadedly connected with the housing.

Furthermore, the rotating part is also provided with a second pushing part, and the second end is positioned on the rotating path of the second pushing part;

when the return spring rotates to the first position, the first stopper, the second stopper, and the second pushing portion are respectively located in the same section between the first end and the second end in the rotation direction of the return spring;

when the return spring rotates to the second position, the first stopper, the second stopper, and the second pushing portion are respectively located in the same section between the first end and the second end in the rotation direction of the return spring.

Further, the second pushing portion is located at a distance from the pivot axis that is smaller than the distance from the pivot axis of the first stopper, and the second pushing portion is located at a distance from the pivot axis that is smaller than the distance from the pivot axis of the second stopper.

Further, when the return spring is located at the first position, the first pushing portion abuts against the first end, and the second pushing portion abuts against the second end.

The reversing type lockset provided by the invention has the beneficial effects that: compared with the prior art, the reversing lock provided by the invention has the advantages that the handle drives the pivot shaft to rotate, the pivot shaft drives the rotating part to rotate, and the rotating part drives the first pushing part to rotate around the pivot shaft; when the elastic piece is positioned at the first position and the first pushing part is contacted with the elastic piece at the first position (assuming that the handle is positioned at the first working position at the moment), after the user rotates the handle to deform the elastic piece at the first position, if the user releases the handle, the handle is pushed to reset by the first pushing part in the process of resetting the elastic piece; when the elastic piece is moved from the first position to the second position and the first pushing part is contacted with the elastic piece at the second position (assuming that the handle is located at the second working position), after the user rotates the handle to deform the elastic piece at the second position, if the user releases the handle, the handle is pushed to reset by the first pushing part in the process of resetting the elastic piece; the handle can be used at the first working position or the second working position by adjusting the elastic piece at the first position and the second position, and the adjustment is very convenient.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

Fig. 1 is a schematic perspective view of a reversible lock according to an embodiment of the present invention;

FIG. 2 is a schematic perspective view of a sleeve portion according to an embodiment of the present invention;

FIG. 3 is a schematic perspective view of an embodiment of the sleeve portion and pivot shaft of the present invention;

FIG. 4 is a schematic perspective view of an embodiment of the present invention illustrating the assembly of the sleeve portion and the return spring;

FIG. 5 is a schematic perspective view of a return spring in a first position according to an embodiment of the present invention;

FIG. 6 is a perspective view of a rotor according to an embodiment of the present invention;

fig. 7 is a schematic perspective view of a return spring according to an embodiment of the present invention;

FIG. 8 is a schematic perspective view of a return spring in a second position according to an embodiment of the present invention;

FIG. 9 is a schematic diagram of a return spring in a first position according to an embodiment of the present invention;

FIG. 10 is a schematic diagram of a return spring in a second position in accordance with an embodiment of the present invention;

FIG. 11 is a schematic view of a mounting of the toggle portion according to the embodiment of the present invention;

FIG. 12 is a schematic view of the installation of a slider according to an embodiment of the present invention;

fig. 13 is a schematic perspective view of a sliding member according to an embodiment of the present invention.

Wherein, in the figures, the respective reference numerals:

1-a shell; 11-a sleeve portion; 12-a first stop; 13-a second stop; 14-a chute; 15-strip shaped holes; 21-a handle; 22-a pivot; 221-card slot; 23-a rotating member; 231-a first pushing part; 232-a second pushing part; 233-boss; 241-a cavity; 2411-a first recess; 2412-a second recess; 25-a screw cap; 3-a return spring; 31-a first end; 32-a second end; 4-a slide; 41-a toggle part; 42-a first boss; 43-a second boss; 44-positioning notches; 45-a positioning member; 46-a pilot hole; 47-a guide; 5-an elastomer.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

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 be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings, which is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and is therefore not to be construed as limiting the invention.

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 one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

Referring to fig. 1 to fig. 10, the reversing lock according to the present invention will now be described. The switching-over formula tool to lock includes: a housing 1, a handle 21 pivotally connected to the housing 1 via a pivot 22, a rotating member 23 disposed on the pivot 22, a first pushing part 231 disposed on the rotating member 23 and rotatable with the rotating member 23 about the pivot 22, and an elastic member; the housing 1 has a first position and a second position for placing the elastic members thereon, respectively, and the first position and the second position are located on a moving path of the first pushing part 231, respectively.

Thus, the handle 21 drives the pivot 22 to rotate, the pivot 22 drives the rotating part 23 to rotate, and the rotating part 23 drives the first pushing part 231 to rotate around the pivot 22; when the elastic member is located at the first position and the first pushing portion 231 contacts with the elastic member at the first position (assuming that the handle 21 is located at the first working position), after the user rotates the handle 21 to deform the elastic member at the first position, if the user releases the handle 21, the handle 21 is pushed by the first pushing portion 231 to reset during the process of restoring the elastic member; when the elastic member is moved from the first position to the second position and the first pushing portion 231 contacts with the elastic member at the second position (assuming that the handle 21 is located at the second working position), after the user rotates the handle 21 to deform the elastic member at the second position, if the user releases the handle 21, the handle 21 is pushed to be reset by the first pushing portion 231 during the process of restoring the elastic member; namely, the handle 21 can be used in the first working position or the second working position by adjusting the elastic element in the first position and the second position, and the adjustment is very convenient.

In one embodiment, the housing 1 is a metal/plastic shell.

In one embodiment, the rotating member 23 is a metal plate.

In one embodiment, the handle 21 is rotated by a different angle relative to the housing 1 when the handle 21 is in the first or second operating position.

Further, referring to fig. 1 to 10, as an embodiment of the reversing lock according to the present invention, the elastic element is a cylindrical return spring 3; the housing 1 has a sleeve portion 11 fitted over a pivot 22; the return spring 3 is sleeved on the sleeve part 11; the return spring 3 is switchable between a first position and a second position around the sleeve portion 11; the two ends of the return spring 3 are respectively a first end 31 and a second end 32; the housing 1 on two opposite sides of the sleeve portion 11 is provided with a first stopper 12 and a second stopper 13; the second stop member 13 is detachably fixed to the housing 1; the first end 31 is located on a rotation path of the first push portion 231; when the return spring 3 rotates to the first position, the first end 31 of the return spring 3 abuts against the first stop member 12, and the second end 32 of the return spring 3 abuts against the second stop member 13; in the rotation direction of the return spring 3, the first stopper 12, the second stopper 13, and the first pushing portion 231 are respectively located in the same section between the first end 31 and the second end 32; when the return spring 3 rotates to the second position, the first end 31 of the return spring 3 abuts on the second stopper 13, and the second end 32 of the return spring 3 abuts on the first stopper 12; in the rotation direction of the return spring 3, the first stopper 12, the second stopper 13, and the first pushing portion 231 are respectively located in the same section between the first end 31 and the second end 32.

Thus, (1) the handle 21 is pivoted on the housing 1 through the pivot 22, the sleeve part 11 on the housing 1 is sleeved on the outer side of the pivot 22, the return spring 3 is sleeved on the sleeve part 11, the return spring 3 can rotate around the sleeve part 11, the sleeve part 11 separates the pivot 22 and the return spring 3, and the mutual interference between the return spring 3 and the pivot 22 is avoided; (2) the return spring 3 is switchable around the sleeve portion 11 between a first position and a second position; when the handle 21 rotates, the pivot 22 is driven to rotate, the pivot 22 rotates to drive the rotating part 23 to rotate, and the rotating part 23 rotates to drive the first pushing part 231 on the rotating part 23 to rotate around the pivot 22; since the first end 31 is located on the rotation path of the first push portion 231, the first push portion 231 may contact the first end 31 of the return spring 3 and push the return spring 3 to rotate about the pivot 22 when rotating about the pivot 22; (3) when the return spring 3 is located at the first position (assuming that the handle 21 is rotated at the first operating position), the first end 31 of the return spring 3 abuts against the first stopper 12, and the second end 32 of the return spring 3 abuts against the second stopper 13, so that the state of the return spring 3 can be kept stable; (4) the process of turning and resetting the handle 21 in the first working position is as follows: when the user rotates the handle 21, the first pushing part 231 rotates around the pivot 22 and pushes the first end 31 to approach the second end 32, the potential energy of the return spring 3 increases; the user releases the handle 21, the first end 31 of the return spring 3 pushes the handle 21 to return by the first pushing portion 231 (the handle 21 stops rotating when the first end 31 abuts on the first stopper 12) (5) when the user removes the second stopper 13, the user drives the first pushing portion 231 to rotate around the pivot 22 through the handle 21 and pushes the return spring 3 to rotate through the first end 31, the second end 32 originally abutted against the second stop member 13 can cross the installation position of the second stop member 13 and then rotate towards the first stop member 12 until the return spring 3 rotates to the second position (assuming that the handle 21 rotates to the second working position at the moment), then the second stop member 13 is installed, the first end 31 of the return spring 3 is abutted against the second stop member 13, the second end 32 of the return spring 3 is abutted against the first stop member 12, and the state of the return spring 3 can be kept stable; (6) the process of turning and resetting the handle 21 in the second working position is as follows: at this time, if the user rotates the handle 21 so that the first pushing part 231 rotates about the pivot 22 and pushes the first end 31 to approach the second end 32, the potential energy of the return spring 3 rises; the user releases the handle 21, the first end 31 of the return spring 3 pushes the handle 21 to return by the first pushing portion 231 (when the first end 31 abuts on the second stopper 13, the handle 21 stops rotating); (7) namely, the handle 21 can rotate and reset when being positioned at the first working position, and after the handle 21 is rotated from the first working position to the second working position after the second stop part 13 is detached, the second stop part 13 is installed, so that the function that the handle 21 can rotate and reset when being positioned at the second working position can be realized; the user can set the handle 21 at the first working position or the second working position according to actual conditions.

Specifically, in one embodiment, the first push portion 231 is a protrusion provided on the rotation member 23.

Specifically, in one embodiment, the second pushing portion 232 is a protrusion provided on the rotating member 23.

Further, referring to fig. 1 to 10, as an embodiment of the reversing lock provided by the present invention, when the first pushing portion 231 pushes the return spring 3 to rotate from the first position to the second position, the pivot 22 rotates ninety degrees to one hundred eighty degrees. As such, the state of the handle 21 may be rotated ninety degrees to one hundred eighty degrees when the position of the handle 21 is switched from the first operating position to the second operating position.

Specifically, in one embodiment, the pivot 22 rotates one hundred and eighty degrees when the first push portion 231 pushes the return spring 3 to rotate from the first position to the second position.

Further, referring to fig. 1 to 10, as an embodiment of the reversing lock according to the present invention, the return spring 3 is a torsion spring. Thus, the structure is simple. The first and second ends 31 and 32 of the torsion spring are capable of storing/releasing elastic potential energy when relatively rotated about the pivot 22.

Further, referring to fig. 1 to 10, as a specific embodiment of the reversible lock according to the present invention, a slot 221 is disposed on the pivot 22 and extends along the extending direction of the pivot 22, and a boss 233 is disposed on the rotating member 23 and is clamped in the slot 221; the pivot shaft 22 is fitted with a nut 25, and the rotor 23 is held between the nut 25 and the sleeve portion 11. Thus, the boss 233 on the rotating member 23 is locked in the locking slot 221 to prevent the rotating member 23 from rotating relative to the pivot 22; the nut 25 prevents the rotating member 23 from being disengaged from the pivot shaft 22.

Further, referring to fig. 1 to 10, as an embodiment of the reversing lock provided by the present invention, a distance between the first pushing portion 231 and the axis of the pivot 22 is smaller than a distance between the first stopper 12 and the axis of the pivot 22, and a distance between the first pushing portion 231 and the axis of the pivot 22 is smaller than a distance between the second stopper 13 and the axis of the pivot 22. Thus, the first pushing portion 231 is prevented from colliding with the first stopper 12 when rotating around the pivot 22, and the first pushing portion 231 is prevented from colliding with the second stopper 13 when rotating around the pivot 22.

Further, referring to fig. 1 to 10, as an embodiment of the reversing lock provided by the present invention, the first stop member 12 is a screw threadedly connected to the housing 1, and/or the second stop member 13 is a screw threadedly connected to the housing 1. Thus, it is very convenient to detach the first stopper member 12 and the second stopper member 13.

Further, referring to fig. 1 to fig. 10, as a specific embodiment of the reversing lock provided by the present invention, the rotating member 23 further has a second pushing portion 232, and the second end 32 is located on a rotating path of the second pushing portion 232; when the return spring 3 is rotated to the first position, the first stopper 12, the second stopper 13, and the second pushing portion 232 are respectively located in the same section between the first end 31 and the second end 32 in the rotational direction of the return spring 3; when the return spring 3 is rotated to the second position, the first stopper 12, the second stopper 13, and the second pushing portion 232 are located in the same section between the first end 31 and the second end 32, respectively, in the rotational direction of the return spring 3. In this way, after the second stopper 13 is detached and the first pushing portion 231 pushes the return spring 3 to the second position by pushing the first end 31; if the return spring 3 needs to be pushed from the second position to the first position, after the second stop member 13 is detached, the user drives the second pushing portion 232 to rotate around the pivot 22 through the handle 21 and pushes the return spring 3 to rotate through the second end 32, the first end 31 originally abutted against the second stop member 13 can cross the installation position of the second stop member 13 and then rotate towards the first stop member 12 until the return spring 3 rotates to the first position (at this time, the handle 21 rotates to the first working position), the second stop member 13 is installed, the first end 31 of the return spring 3 abuts against the first stop member 12, the second end 32 of the return spring 3 abuts against the second stop member 13, and the state of the return spring 3 can be kept stable; that is, the return spring 3 can be pushed to rotate from the second position to the first position very conveniently by the second stopper 13.

Further, referring to fig. 1 to 10, as an embodiment of the reversing lock provided by the present invention, the distance between the second pushing portion 232 and the axis of the pivot 22 is smaller than the distance between the first stopper 12 and the axis of the pivot 22, and the distance between the second pushing portion 232 and the axis of the pivot 22 is smaller than the distance between the second stopper 13 and the axis of the pivot 22. Thus, the second pushing portion 232 is prevented from colliding with the first stopper 12 when rotating around the pivot 22, and the second pushing portion 232 is prevented from colliding with the second stopper 13 when rotating around the pivot 22.

Further, referring to fig. 1 to 10, as an embodiment of the reversing lock according to the present invention, when the return spring 3 is located at the first position, the first pushing portion 231 abuts against the first end 31, and the second pushing portion 232 abuts against the second end 32. So, first promotion portion 231 and second promotion portion 232 all contact with reset spring 3, and the first promotion portion 231 of being convenient for drives reset spring 3 and rotates, perhaps second promotion portion 232 drives and drives reset spring 3 and rotate.

Referring to fig. 11 to 13, in one embodiment, the reversible lock further includes: a casing 1 having a slide groove 14, a handle 21 pivotally connected to the casing 1 through a pivot 22, a rotation member 23 provided on the pivot 22 and having a cavity 241 formed by being depressed in a radial direction of the pivot 22, and a slider 4 slidably provided in the slide groove 14 and adapted to be caught/slipped into/out of the cavity 241; the casing 1 is provided with a strip-shaped hole 15 parallel to the sliding chute 14, and the sliding part 4 is provided with a toggle part 41 penetrating through the strip-shaped hole 15.

Thus, a user drives the pivot 22 to rotate through the handle 21, the pivot 22 is provided with the rotating part 23, and the rotating part 23 is driven to rotate by the rotation of the pivot 22; the rotating member 23 is provided with a cavity 241, and the cavity 241 is recessed toward the radial direction of the pivot 22 (in one embodiment, the cavity 241 is recessed toward the radial direction of the pivot 22 and the direction close to the axis); the shell 1 is provided with a sliding chute 14, and the sliding piece 4 is arranged in the sliding chute 14 in a sliding manner; when a user needs to lock the handle 21, the rotating member 23 can be prevented from rotating only by dialing the sliding member 4 through the dialing part 41 to slide so that the sliding member 4 is clamped in the concave cavity 241, thereby preventing the pivot 22 on the handle 21 from rotating; when a user needs to unlock the handle 21, the rotating member 23 can be unlocked to rotate only by dialing the sliding member 4 through the dialing part 41 to slide so that the sliding member 4 slides out of the concave cavity 241, thereby unlocking the rotation of the pivot 22 on the handle 21; the safety is guaranteed.

In one embodiment, the toggle portion 41 is rod-shaped. In one embodiment, the width of the strip-shaped hole 15 is the same as the diameter of the dial 41.

Further, referring to fig. 11 to 13, in one embodiment, the cavity 241 includes a first recess 2411 and a second recess 2412 connected to each other, and the slider 4 has a first protrusion 42 inserted into the first recess 2411 and a second protrusion 43 inserted into the second recess 2412. Thus, the first protrusion 42 is engaged with the first recess 2411, the second protrusion 43 is engaged with the second recess 2412, and the first protrusion 42 and the second protrusion 43 are provided together to lift the brake on the rotating member 23.

Further, referring to fig. 11 to 13, in one embodiment, the first protrusion 42 is bent and/or the second protrusion 43 is bent. In this way, the first bent boss 42 can reinforce the strength of the first boss 42, and the second bent boss 43 can reinforce the strength of the second boss 43.

Further, referring to fig. 11 to 13, in one embodiment, the inner wall of the first recess 2411 and the inner wall of the second recess 2412 are connected to form a W shape. Thus, the processing is easy, and the W-shaped structure can improve the deformation resistance.

Further, referring to fig. 11 to 13, in one embodiment, a plurality of first concave portions 2411, a plurality of second concave portions 2412, a plurality of first convex portions 42, and a plurality of second convex portions 43 are provided; the first concave portions 2411, the second concave portions 2412, the first convex portions 42, and the second convex portions 43 correspond to each other one by one. In this way, the first concave portions 2411, the second concave portions 2412, the first convex portions 42, and the second convex portions 43 cooperate with each other to position the rotating member 23 at different rotating angles.

Further, referring to fig. 11 to 13, in one embodiment, an elastic body 5 for driving the sliding member 4 to approach the rotating member 23 is connected between the sliding member 4 and the housing 1. In this way, the elastic body 5 can drive the sliding member 4 to approach the rotating member 23 and to be stuck in the concave cavity 241 to brake the rotating member 23.

Specifically, in one embodiment, the elastic body 5 is a torsion spring. Specifically, in one embodiment, the elastic body 5 is a butterfly-type torsion spring.

Further, referring to fig. 11 to 13, in an embodiment, the housing 1 is provided with a positioning element 45, an edge of the sliding element 4 is provided with a positioning notch 44, and when the first protruding portion 42 is clamped in the first recess 2411, the positioning element 45 is clamped in the positioning notch 44. Thus, when the first protruding portion 42 is engaged with the first recess 2411, the positioning element 45 on the housing 1 is engaged with the positioning notch 44 on the sliding element 4, so as to reduce the shaking of the sliding element 4.

Further, referring to fig. 11 to 13, in one embodiment, the positioning notch 44 is located between the first protrusion 42 and the second protrusion 43. In this way, the first and second protrusions 42 and 43 on the first and second protrusions 42 and 43 can protect the positioning notch 44 between the first and second protrusions 42 and 43; and the positioning notch 44 can transmit force to the first and second protrusions 42 and 43 when being subjected to external force.

Further, referring to fig. 11 to 13, in one embodiment, the pivot 22 is provided with a slot 221 extending along the extending direction of the pivot 22, and the rotating member 23 is provided with a boss 233 inside the slot 221. Thus, the boss 233 of the rotating member 23 is locked in the locking slot 221 to prevent the rotating member 23 from rotating relative to the pivot 22.

Further, referring to fig. 11 to 13, in an embodiment, the sliding member 4 is provided with a guide hole 46 parallel to the sliding slot 14, and the housing 1 is provided with a guide element 47 inserted in the guide hole 46. In this way, the guide piece 47 inserted in the guide hole 46 can play a guiding role during the sliding process of the sliding piece 4; and the guide 47 can reduce the vibration/shaking of the slider 4 occurring during the sliding.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims (10)

1. Switching-over formula tool to lock, its characterized in that includes: the handle is pivoted on the shell through a pivot, the rotating part is arranged on the pivot, the first pushing part is arranged on the rotating part and can rotate around the pivot along with the rotating part, and the elastic part is arranged on the first pushing part; the shell is provided with a first position and a second position for placing the elastic piece respectively, and the first position and the second position are respectively positioned on a moving path of the first pushing part.

2. The reversing lock according to claim 1, wherein said resilient member is a cylindrical return spring; the casing is provided with a sleeve part sleeved on the pivot; the reset spring is sleeved on the sleeve part; the return spring is switchable around the sleeve portion between the first position and the second position; the two ends of the return spring are respectively a first end and a second end; a first stop member and a second stop member are respectively arranged on the shell on two opposite sides of the sleeve part; the second stop piece is detachably fixed on the shell; the first end is positioned on a rotating path of the first pushing part;

when the return spring rotates to the first position, a first end of the return spring abuts against the first stop member, and a second end of the return spring abuts against the second stop member; the first stopper, the second stopper, and the first pushing portion are respectively located in the same section between the first end and the second end in the rotational direction of the return spring;

when the return spring rotates to the second position, a first end of the return spring abuts against the second stop member, and a second end of the return spring abuts against the first stop member; the first stopper, the second stopper, and the first pushing portion are respectively located in the same section between the first end and the second end in the rotational direction of the return spring.

3. The reversing lock of claim 2, wherein the pivot rotates ninety degrees to one-hundred-eighty degrees when the first urging portion urges the return spring to rotate from the first position to the second position.

4. The reversing lock according to claim 2, wherein the return spring is a torsion spring.

5. The reversible lock according to claim 2, wherein said pivot shaft is provided with a notch extending in the direction in which said pivot shaft extends, and said rotary member is provided with a boss engaged in said notch; the pivot is sleeved with a nut, and the rotating piece is clamped between the nut and the sleeve portion.

6. The reversing lock of claim 2, wherein the first urging portion is located a distance from the pivot axis that is less than the first stop and the first urging portion is located a distance from the pivot axis that is less than the second stop.

7. The reversing lock according to claim 2, wherein the first stop member is a screw threadedly connected to the housing and/or the second stop member is a screw threadedly connected to the housing.

8. The reversible lock according to any one of claims 2 to 7, wherein the rotatable member further comprises a second urging portion, the second end being located in a rotational path of the second urging portion;

when the return spring rotates to the first position, the first stopper, the second stopper, and the second pushing portion are respectively located in the same section between the first end and the second end in the rotation direction of the return spring;

when the return spring rotates to the second position, the first stopper, the second stopper, and the second pushing portion are respectively located in the same section between the first end and the second end in the rotation direction of the return spring.

9. The reversing lock of claim 8, wherein the second urging portion is located a distance from the pivot axis that is less than the first stop and the second urging portion is located a distance from the pivot axis that is less than the second stop.

10. The reversing lock according to claim 8, wherein said first urging portion abuts against said first end and said second urging portion abuts against said second end when said return spring is in said first position.

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