CN108643726B

CN108643726B - Locking method and device

Info

Publication number: CN108643726B
Application number: CN201810445588.XA
Authority: CN
Inventors: 张波
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-05-11
Filing date: 2018-05-11
Publication date: 2020-02-21
Anticipated expiration: 2038-05-11
Also published as: CN108643726A

Abstract

The invention discloses a locking method and a locking device, which are used for daily necessities of people and provide a locking and fixing function for finished products of the products, such as clothes hangers for clothes. The locking method of the invention comprises the following steps: the locking and unlocking are realized by adopting a dual-drive system, a combined integrated transmission part, a rotation stopping system and a locking part. The apparatus of the present invention comprises: the device comprises a bottom shell, a main driving rack, an auxiliary driving piece, a limiting reset piece, a pawl, a transmission gear, a locking rack, a face shell and a screw. The invention overcomes the defect that the existing product can not be locked and fixed, meets the requirement of pain points of people, does not change the use mode and the traditional habit of the existing product such as a clothes hanger, and is completely the same as the existing common clothes hanger when the locking device is not started. The invention inherits the current situation, creates the future, has unique, novel and compact structure, and has wide market demand and popularization and practical value.

Description

Locking method and device

Technical Field

The invention belongs to the field of products of household articles for daily life of human beings, and particularly relates to a locking method and a locking device.

The locking method of the invention can be integrated into the overall design of the finished product of the product to become a part of the detailed design, and also can be designed into an independent device according to the principle of the locking method of the invention, the independent device is not independently used as the finished product of daily necessities, but is used as the core component of the finished product of the product, namely a component or accessory, which provides important functions for the finished product of the product, and the component can be independently produced as a semi-finished accessory product and is provided for downstream finished product manufacturers in the form of accessories.

Background

Many daily products in people's life, because do not have locking fixed function, can oneself shift position because of the exogenic action in use, let the user feel very uncomfortable. Such as: the most common clothes hanger in the family has no locking and fixing function, so that clothes hangers and aired clothes are blown off or blown to be crowded together or blown to be crowded to the other end from one end of a clothes drying rod all the time due to blowing, people feel uncomfortable, the airing effect of the clothes is influenced, and the function of the common clothes hanger is far from meeting the hope and the requirement of people. If the device of the invention is assembled on the product of the clothes rack or the method of the invention is integrated on the overall design of the product, the clothes rack has a new locking and fixing function and can be fixed at any position on a clothes airing rod, and the clothes rack and aired clothes cannot be blown to move everywhere or be squeezed together by wind.

All clothes hanger products on the market at present have no locking and fixing function. The invention discloses a locking method and a locking device, and belongs to the initiatives and originations. The locking method and device of the invention can be used on a product of a clothes rack, but is not limited to the product of the clothes rack, and can also be used on other products and provide the locking and fixing functions for the products.

Disclosure of Invention

The invention provides a locking method and a locking device, aiming at solving the defect that the existing product lacks a locking and fixing function and better meeting the functional requirements of people on daily products.

The purpose of the invention is realized by the following modes: the locking method of the invention has the following principle and characteristics: the locking and unlocking are realized by adopting a dual-drive system, a combined integrated transmission part, a rotation stopping system and a locking part; when external force is applied, the multifunctional main driving piece is driven to move, the combined type integrated transmission piece is driven to rotate, and then the locking piece is driven to move to lock foreign objects; meanwhile, the external force drives a secondary driving piece to move to drive a rotation stopping system consisting of a plurality of parts to move so as to stop the locking piece from loosening with a locked foreign object, and continuous locking is realized; when external force is applied in the opposite direction, the anti-rotation-stopping system is driven to move in the opposite direction by driving the auxiliary driving piece to move in the opposite direction, the anti-rotation-stopping function is removed, the locking piece can be separated from the locked foreign object, then the external force drives the combined type integrated transmission piece to move in the opposite direction by continuously driving the main driving piece to move, then the locking piece is driven to move in the opposite direction, and the locking piece is separated from the locked foreign object to realize unlocking;

an apparatus of the present invention designed according to the locking method of the present invention includes: the device comprises a bottom shell, a main driving rack, an auxiliary driving piece, a limiting reset piece, a pawl, a transmission gear, a locking rack, a face shell and a screw. The main driving rack is assembled in the bottom shell, the auxiliary driving piece is assembled on the main driving rack in an overlapped mode, the limiting reset piece is assembled on the main driving rack and the right side of the auxiliary driving piece in an overlapped mode, the pawl is assembled on the right side of the limiting reset piece, the transmission gear is assembled on the upper side of the pawl in a parallel mode, the locking rack is assembled on the right side of the transmission gear, the face shell is assembled finally, and the face shell and the bottom shell are locked together through the screws. The transmission gear is a combined integrated transmission part comprising a pinion, a bull gear and a ratchet gear;

when downward external force is applied to the oblong hole of the main driving rack and the oblong hole of the auxiliary driving piece, the main driving rack and the auxiliary driving piece are driven to move downwards, the main driving rack drives the transmission gear to rotate anticlockwise through the rack on the main driving rack, meanwhile, the transmission gear drives the locking rack to move upwards through the large gear of the transmission gear, the locking rack stops moving until the locking rack touches a foreign object (such as a clothes airing rod), and the locking rack and a hook of a finished product (such as a clothes hanger) clamp the foreign object; in the process, the auxiliary driving piece drives the limiting reset piece to move rightwards through one pair of cylinders, the right straight surface of the limiting reset piece drives the pawl to rotate clockwise, the pawl tip is embedded into the ratchet gear on the transmission gear, and the transmission gear cannot rotate even if external force is relieved, so that foreign objects can be continuously locked by the locking rack. When an upward external force is applied in the opposite direction, firstly, the auxiliary driving piece drives the limiting reset piece to move leftwards, so that the pawl rotates anticlockwise under the action of the elastic arm of the pawl, the pawl tip is disengaged from the ratchet gear, the rotation stopping effect is removed, then, the main driving rack continues to move upwards, the driving gear is driven to rotate clockwise, the locking rack is driven to move downwards, and the locking rack is disengaged from a foreign object, so that the unlocking of the device is realized.

The bottom shell is provided with a large slotted hole for inserting an external driving object, such as a rod head of a clothes supporting rod, to drive a main driving rack and an auxiliary driving piece of the device, and simultaneously limit the movement stroke of the main driving rack and the auxiliary driving piece, the length of the slotted hole can be adjusted to change the size of the movement stroke, the bottom shell is also provided with three small round holes for positioning the device when the device is assembled with a finished product of a complete machine product, the bottom shell is also provided with two cylindrical columns with open bottoms, a screw column for the finished product of the complete machine product penetrates through the cylindrical columns, and simultaneously props against a face shell of the device to bear pressure, the bottom shell is also provided with a cylinder as a shaft of a transmission gear and another cylinder as a shaft of a pawl, the bottom shell is also provided with a section of side upright studs for limiting elastic arms of the pawl and three side upright studs for positioning the main driving rack left and right, and the bottom shell is also provided with, the elastic arm of the bottom shell interacts with the elastic arm of the main driving rack, provides damping and simple limiting in the movement process for the main driving rack, the bottom shell is further provided with one section of long groove and one side vertical stud in the long groove, and is used for movement guiding and limiting for the locking rack, the bottom shell is further provided with four screw columns for screwing and locking the face shell and the bottom shell during assembly of the face shell and the bottom shell, the bottom surface of the bottom shell is further provided with four concave tables for fixing and locking the device and a shell of a finished product during assembly of the device and the finished product, the left side of the bottom shell is a three-section straight side vertical surface, the right side of the bottom shell is a one-section straight side vertical surface, the lower side of the bottom shell is two-section straight and one-section oblique and two-section arc-shaped side vertical.

The main driving rack is provided with a large oblong hole for inserting an external driving object, such as a rod head of a clothes supporting rod, to drive the main driving rack to move up and down, the main driving rack is also provided with a pair of vertical guide grooves for guiding the up-and-down movement of the auxiliary driving piece, and a pair of transverse guide grooves for guiding the left-and-right movement of the limiting reset piece, the main driving rack is also provided with a section of rack which is meshed with a pinion on a transmission gear and drives the transmission gear to rotate, the main driving rack is also provided with an elastic arm, the head part of the main driving rack is semicircular and used for positioning and limiting the auxiliary driving piece, the bottom surface of the head part of the main driving rack is triangular and used for interacting with a section of rack on the bottom shell to generate damping, and the middle part of the left side, the right part of the upper side and the right part of the lower side of the main driving rack are, the main driving rack and the face shell are used together for providing spacing and adjusting clearance between the main driving rack and the face shell.

The whole auxiliary driving piece is in a vertically-long round shape, the upper end and the lower end of the auxiliary driving piece are long surfaces and entities, the surfaces and the entities are used for blocking a gap formed between the auxiliary driving piece and the long round hole of the face shell when the auxiliary driving piece moves vertically, the long round hole is formed in the middle of the auxiliary driving piece and used for being inserted into an external driving object such as a rod head of a clothes supporting rod, a circle of side upright studs protrude from the top surface and the bottom surface of the long round hole and used for limiting the position between the auxiliary driving piece and the long round holes of the bottom shell and the face shell and limiting the movement stroke of the auxiliary driving piece and the main driving rack, five protruding sawteeth are arranged on the right side of the auxiliary driving piece and used for limiting the position limiting reset piece and enhancing the strength of the position limiting reset piece and preventing the excessive deformation of the position limiting reset piece after being stressed, the auxiliary driving function of the position limiting reset piece, the middle of being promptly is one section straight face, and the upper and lower both sides of straight face all are the inclined plane, and these two inclined planes can be the angle as big, and symmetrical form also can be the angle of equidimension not for with an elastic arm interact on the main drive rack, provide spacing and damping for the accessory drive spare, the upper and lower both ends of accessory drive spare bottom surface have the side upright stud of a pair of "U" type, with the cooperation of a pair of vertical guide way on the main drive rack, restrict the up-and-down motion direction of accessory drive spare jointly, the upper and lower both ends of accessory drive spare bottom surface still have a pair of cylinder that the protrusion came for the side-to-side motion of the spacing piece that resets of drive.

The limiting reset part is integrally in a reverse C shape similar to the left opening, the upper part and the lower part of the left half part of the front surface share a pair of guide grooves, each guide groove is a section of inclined groove from right to left and then is tightly connected with a section of downward straight groove, when a pair of cylinders on the auxiliary driving part move up and down in the grooves, the limiting reset part can be driven to move left and right, the right half part of the front surface of the limiting reset part is raised by about one layer than the left half part, the right side of the limiting reset part is a section of straight surface used for driving the pawl to move left and right and limiting the left limit position of the pawl, the left side of the limiting reset part is provided with five concave saw teeth which are matched with the five convex saw teeth on the auxiliary driving part to receive auxiliary driving and limiting, the back surface, namely the back surface, of the limiting reset part is provided with a pair of long circular guide surrounding bones which share a left and right directions to form a transverse, the limit reset piece is limited to move only left and right.

The pawl is similar to an S shape, the upper part of the pawl is a pawl tip, the middle part of the pawl is a cylinder, the lower part of the pawl is an elastic arm, the pawl tip and a ratchet gear on the transmission gear form a ratchet transmission relationship, the cylinder is sleeved on a cylinder on the bottom shell to form a rotating shaft of the pawl, a round head on the elastic arm is pressed on the side surface of a section of side upright stud on the bottom shell to provide elasticity for the pawl, and the connecting part between the pawl tip and the cylinder is a narrow arc-shaped body, so that elastic movement or elastic deformation can be carried out between the pawl tip and the cylinder.

The transmission gear is a coaxial and integrated gear set, a pinion, a gearwheel and a ratchet gear are sequentially arranged from bottom to top, a circular disc body is arranged between the pinion and the gearwheel to play a role in strengthening the strength of gear teeth of the gearwheel, a circular through hole is arranged in the center of the transmission gear, and the circular through hole is sleeved on a cylinder on the bottom shell and is the rotation center of the transmission gear.

The whole locking rack is similar to a 7 shape and comprises a transverse part at the upper part and a vertical part at the right part, the transverse part of the locking rack is provided with an upward arc-shaped surface for better clamping and locking external articles such as a round clothes airing rod, the vertical part comprises a section of rack, a gear and rack transmission relation is formed between the rack and a large gear on a transmission gear, the locking rack is driven by the transmission gear to move up and down, the front surface and the back surface of the vertical part of the locking rack are respectively provided with a convex long circular surrounding bone, the center of the surrounding bone is a long circular groove, the surrounding bones move up and down in the grooves of the bottom shell and the surface shell to limit the moving direction and the limiting direction of the locking rack, the grooves on the front surface and the back surface of the vertical part of the locking rack are matched with the side vertical studs of the surface shell and the side vertical studs of the bottom shell to limit the swinging amplitude of the locking rack in the direction vertical to the paper surface, the swing range is minimized.

The face shell is in a corresponding relation with the bottom shell in shape and most structures, and comprises a large long round hole for inserting an external driving object, such as a rod head of a clothes supporting rod, to drive a main driving rack and an auxiliary driving piece of the device and limit the movement stroke of the main driving rack and the auxiliary driving piece, the length of the long round hole can be adjusted to change the size of the movement stroke, the face shell is provided with two circular through holes through which screw columns for finished products of the whole machine pass, the lower end of each circular through hole is provided with a boss which is used for propping against a cylindrical column on the bottom shell to bear the pressure of the finished products of the whole machine, the face shell is provided with a circular surrounding bone which is sleeved on a cylinder on the bottom shell and is used as a shaft of a transmission gear together and plays a role in strengthening and protecting the cylinder, the face shell is provided with a circular groove which is sleeved on another cylindrical column on the bottom shell and is used, the device plays a role in strengthening and protecting the cylinder, the face shell is provided with a section of long groove, a side vertical stud in the long groove and a corresponding section of long groove on the bottom shell and a side vertical stud in the long groove, the face shell and the side vertical stud jointly guide and limit the movement of the locking rack, the face shell is provided with four screw through holes for the screws to penetrate through to lock the face shell and the bottom shell together, the upper ends of the screw through holes are provided with concave platforms for hiding screw heads, the lower ends of the screw through holes are provided with surrounding bones for positioning between the face shell and the bottom shell, the top surface of the face shell is provided with four concave platforms corresponding to the four concave platforms on the bottom surface of the bottom shell, the four concave platforms are jointly used for fixing and locking with a shell of a finished product facade when the device is assembled with the finished product facade, the device is pressed in the shell of the finished product, the left side of the face shell is a three-section straight side vertical surface, and the right side is a section, the lower side is two straight sections, one inclined section and two arc-shaped side elevation surfaces, and the upper end is open.

And finally, locking the face shell and the bottom shell by four screws to complete the whole device.

The invention has the advantages of overcoming the defect that the existing products cannot be locked and fixed, providing a locking method and a locking device for the existing household daily necessities, in particular to clothes hanger products, overcoming the technical defects that the clothes hangers are always blown off by wind or blown to move back and forth on the clothes hanger because the clothes hangers cannot be fixed on any position of the clothes hanger, even blown to be squeezed together, affecting the airing effect and the like, and eliminating the use troubles of common people. The locking method and the locking device are original, original and original in the technical application field.

Drawings

FIG. 1 is a complete three-dimensional view of the present invention.

Fig. 2 is an exploded view of the present invention.

Fig. 3 is a full elevation view of the present invention.

Fig. 4 is a complete back view of the present invention.

Fig. 5 is a front view of the invention in a fully unlocked state.

Fig. 6 is a front view of the maximum locking state of the present invention.

Fig. 7 is a front view of the bottom case of the present invention.

Fig. 8 is a back view of the bottom case of the present invention.

Figure 9 is a front view of the main drive rack of the present invention.

Figure 10 is a front view of the secondary drive member of the present invention.

FIG. 11 is a rear view of the secondary drive member of the present invention.

Fig. 12 is a front view of a limiting reset of the present invention.

Figure 13 is a rear view of the limiting reset device of the present invention.

Fig. 14 is a front view of the pawl of the present invention.

Fig. 15 is a front view of the transmission gear of the present invention.

FIG. 16 is a rear elevational view of the drive gear of the present invention.

Fig. 17 is a front view of the locking rack of the present invention.

Fig. 18 is a rear view of the locking rack of the present invention.

Figure 19 is a front view of a face shell of the present invention.

Fig. 20 is a back view of a face shell of the present invention.

List of parts with reference numbers (please compare: fig. 2, exploded view of the invention)

The device comprises a base shell 1, a main driving rack 2, an auxiliary driving piece 3, a limiting reset piece 4, a pawl 5, a transmission gear 6, a locking rack 7, a face shell 8 and a screw 9.

Detailed Description

The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-20, a specific embodiment of a locking device according to the principles of the present invention comprises: the device comprises a bottom shell (1), a main driving rack (2), an auxiliary driving piece (3), a limiting reset piece (4), a pawl (5), a transmission gear (6), a locking rack (7), a face shell (8) and a screw (9); the driving mechanism is characterized in that a main driving rack (2) is assembled in a bottom shell (1), an auxiliary driving piece (3) is assembled on the main driving rack (2) in an overlapping mode, a limiting reset piece (4) is assembled on the main driving rack (2) in an overlapping mode and on the right side of the auxiliary driving piece (3), a pawl (5) is assembled on the right side of the limiting reset piece (4), a transmission gear (6) is assembled on the upper side of the pawl (5) in a parallel mode, a locking rack (7) is assembled on the right side of the transmission gear (6), a face shell (8) is assembled finally, and the face shell (8) and the bottom shell (1) are locked together through a screw (9); the device comprises a main driving rack (2), an auxiliary driving piece (3), a limiting reset piece (4), a pawl (5) and a ratchet gear (63) on a transmission gear (6), wherein the main driving rack (2) and the auxiliary driving piece (3) form a double driving system, the limiting reset piece (4), the pawl (5) and the ratchet gear (63) form a rotation stopping system, and the transmission gear (6) is a combined integrated transmission piece comprising a pinion (61), a bull gear (62) and the ratchet gear (63); when downward external force is applied to the oblong hole (21) of the main driving rack (2) and the oblong hole (32) of the auxiliary driving piece (3), the main driving rack (2) and the auxiliary driving piece are driven to move downwards, the main driving rack (2) drives the transmission gear (6) to rotate anticlockwise through the rack (24) of the main driving rack, meanwhile, the transmission gear (6) drives the locking rack (7) to move upwards through the large gear (62) of the transmission gear, the locking rack (7) stops moving until the locking rack (7) touches a foreign object (such as a clothes drying rod), and the locking rack and the hook of a finished product (such as a clothes hanger) clamp the foreign object; in the process, the auxiliary driving piece (3) drives the limiting reset piece (4) to move rightwards through the pair of cylinders (37), the right straight surface (42) of the limiting reset piece (4) drives the pawl (5) to rotate clockwise, the pawl tip (51) is embedded into the ratchet wheel (63) on the transmission gear (6), at the moment, even if external force is relieved, the transmission gear (6) cannot rotate, and therefore the locking rack (7) can continuously lock foreign objects. When an upward external force is applied in the opposite direction, firstly, the auxiliary driving piece (3) drives the limiting reset piece (4) to move leftwards, so that the pawl (5) rotates anticlockwise under the action of the elastic arm (53) of the pawl, the pawl tip (51) is separated from the ratchet gear (63), the rotation stopping function is released, then, the main driving rack (2) continues to move upwards, the transmission gear (6) is driven to rotate clockwise, and then the locking rack (7) is driven to move downwards, so that the locking rack is separated from a foreign object, and the unlocking of the device is realized.

The bottom shell (1) is provided with a large slotted hole (11) for inserting an external driving object, such as a rod head of a clothes supporting rod, to drive the main driving rack (2) and the auxiliary driving piece (3) of the device to move and limit the moving stroke of the main driving rack and the auxiliary driving piece at the same time, the length of the slotted hole (11) can be adjusted to change the size of the moving stroke, the bottom shell (1) is provided with three small round holes (12) for positioning the device when the device is assembled with a finished product of the whole machine, the bottom shell (1) is provided with two cylindrical columns (13) with open bottoms, a screw column for the finished product of the whole machine penetrates through the cylindrical columns and simultaneously props against a face shell of the device to bear pressure, the bottom shell (1) is provided with a cylindrical column (14) as a shaft of a transmission gear (6) and another cylindrical column (15) as a shaft of a pawl (5), and the bottom shell (1) is provided with a section of side, the device is characterized in that a spring arm (53) of a pawl (5) is limited, three side vertical studs (17) are used for positioning a main driving rack (2) left and right, a section of rack (18) is arranged on the bottom shell (1) and interacts with an elastic arm (26) of the main driving rack (2) to provide damping and simple limiting in the movement process, a section of long groove (19) is arranged on the bottom shell (1), a side vertical stud (110) is arranged in the long groove and is used for guiding and limiting movement of a locking rack (7), four screw posts (111) are arranged on the bottom shell (1) and used for screwing a face shell (8) and the bottom shell (1) during assembly, the face shell (8) and the bottom shell (1) are locked, four concave platforms (112) are arranged on the bottom surface of the bottom shell (1) and used for fixing and locking the finished product when the device is assembled with a finished product, and three straight side studs (113) are arranged on the left side of the bottom shell (1), the right side is a straight side elevation (114), the lower side is two straight and one inclined and two arc side elevations (115), and the upper end is open.

The main driving rack (2) is provided with a large oblong hole (21) for inserting an external driving object, such as a rod head of a clothes supporting rod, to drive the main driving rack (2) to move up and down, the main driving rack (2) is provided with a pair of vertical guide grooves (22) for guiding the up and down movement of the auxiliary driving piece (3), a pair of transverse guide grooves (23) for guiding the left and right movement of the limiting reset piece (4), the main driving rack (2) is provided with a section of rack (24) for driving the transmission gear (6), the main driving rack (2) is provided with an elastic arm (25), the head part is semicircular and used for positioning and limiting the auxiliary driving piece (3), and the bottom surface of the head part is triangular and used for the main driving rack (2) and a section of rack (18) on the bottom shell (1) to interact to generate damping, the left side middle part and the upside right part and the downside right part of main drive rack (2) all have one section and exceed or outstanding platform face (27), are used for providing spacing and adjustment clearance between main drive rack (2) and face-piece (8) jointly.

The whole auxiliary driving piece (3) is vertically long and round, the upper end and the lower end of the auxiliary driving piece are long surfaces and solid bodies (31) so as to block a gap formed between the upper end and the lower end of the auxiliary driving piece and the long round hole (81) of the face shell (8) when the auxiliary driving piece moves up and down, the middle of the auxiliary driving piece (3) is provided with the long round hole (32) for inserting an external driving object such as a rod head of a clothes supporting rod, the upper surface and the lower surface of the long round hole (32) are respectively protruded with a circle of side upright studs (33) for limiting the position between the auxiliary driving piece (3) and the long round hole (11) of the bottom shell (1) and the long round hole (81) of the face shell (8) and limiting the movement stroke of the auxiliary driving piece (3) and the main driving rack (2), the right side of the auxiliary driving piece (3) is provided with five protruded saw-toothed shapes (34) for limiting and strengthening the strength of the limiting reset, also has the function of auxiliary driving limit reset piece (4), the right side of the auxiliary driving piece (3) is provided with an L-shaped blocking position (35), the head part of the L-shaped blocking position is in a trapezoid shape towards the right, namely, the middle is a section of straight surface, the upper and lower sides of the straight surface are inclined surfaces, the two inclined surfaces can be at the same large angle, are symmetrical and can be at different angles, used for interacting with an elastic arm (25) on the main driving rack (2) to provide spacing and damping for the secondary driving piece (3), a pair of U-shaped side vertical studs (36) are arranged at the upper end and the lower end of the bottom surface of the auxiliary driving piece (3), the upper and lower motion directions of the auxiliary driving piece (3) are limited together with a pair of guide grooves (22) on the main driving rack (2), and the upper end and the lower end of the bottom surface of the auxiliary driving part (3) are also provided with a pair of protruding cylinders (37) for driving the limiting reset part (4) to move left and right.

The limiting and resetting piece (4) is of a reverse C-shaped structure with similar opening towards the left on the whole, the upper part and the lower part of the left half part of the front surface are respectively provided with a pair of guide grooves (41), each guide groove is a section of inclined groove from right to left and then is a section of straight groove downwards in close connection, when a pair of cylinders (37) on the auxiliary driving piece (3) move up and down in the grooves, the limiting and resetting piece (4) can be driven to move left and right, the right half part of the front surface of the limiting and resetting piece (4) is lifted by about one layer than the left half part, the right side of the limiting and resetting piece is provided with a section of straight surface (42) which is used for driving the pawl (5) to move left and right and limiting the left limit position of the pawl (5), the left side of the limiting and resetting piece is provided with five concave sawteeth (43) which are matched with five convex sawteeth (34) on the auxiliary driving piece (3, the reverse side, namely the back side, of the limiting reset piece (4) is provided with a pair of long circular guiding surrounding bones (44) respectively from top to bottom, the long circular guiding surrounding bones form a transverse shape in the left-right direction, and the long circular guiding surrounding bones are used in a pair of transverse guiding grooves (23) on the main driving rack (1) to limit the limiting reset piece (4) to only move left and right.

The pawl (5) is similar to an S shape, the upper part of the pawl is a pawl tip (51), the middle part is a cylinder (52), the lower part is a spring arm (53), the ratchet point (51) and a ratchet gear (63) on the transmission gear (6) form a ratchet transmission relationship, the cylinder (52) is sleeved on a cylinder (15) on the bottom shell (1) to form a rotating shaft of the pawl (5), the round head (54) on the elastic arm (53) is pressed on the side surface of a section of side stud (16) on the bottom shell (1) to provide elasticity for the pawl (5) so that the pawl tip (51) can be disengaged from the ratchet wheel (63) on the transmission gear (6), the junction between the pawl tip (51) and the cylinder (52) is a narrow arc-shaped body (55), so that the pawl tip (51) and the cylinder (52) can also perform elastic movement or elastic deformation.

The transmission gear (6) is a coaxial gear set with the same body, a pinion (61), a gearwheel (62) and a ratchet gear (63) are sequentially arranged from bottom to top, a circular disc body (64) is arranged between the pinion (61) and the gearwheel (62) to play a role in reinforcing the strength of gear teeth of the gearwheel (62), a circular through hole (65) is formed in the center of the transmission gear (6), and the circular through hole is sleeved outside a cylinder (14) of the bottom shell (1) and is the rotating center of the transmission gear (6).

The whole locking rack (7) is similar to a 7 shape and comprises a transverse part at the upper part and a vertical part at the right part, the transverse part of the locking rack (7) is provided with an upward arc-shaped surface (71) for better clamping and locking external articles such as a round clothes drying rod, the vertical part comprises a section of rack (72) which forms a gear-rack transmission relationship with a large gear (62) on a transmission gear (6) so that the locking rack (7) moves up and down after being driven by the transmission gear (6), the front surface and the back surface of the vertical part of the locking rack (7) are respectively provided with a convex long round surrounding bone (73), the center of the surrounding bone is a long round groove (74), the surrounding bone (73) moves up and down in the groove (19) of the bottom shell (1) and the groove (86) of the face shell (8) to play roles of limiting the movement direction of the locking rack (7) and limiting, the grooves (74) on the front side and the back side of the vertical part of the locking rack (7) are matched with the face shell side vertical studs (87) and the bottom shell side vertical studs (110), so that the swinging amplitude of the locking rack (7) in the direction vertical to the paper surface is limited, and the swinging range of the locking rack is reduced as much as possible.

The face shell (8) corresponds to the bottom shell (1) in shape and most structures, and comprises a large long round hole (81) for inserting an external driving object such as a rod head of a clothes supporting rod to drive the main driving rack (2) and the auxiliary driving part (3) of the device and limit the movement stroke of the main driving rack and the auxiliary driving part, the length of the long round hole (81) can be adjusted to change the size of the movement stroke, the face shell (8) is provided with two circular through holes (82) for a screw column of a finished product of the whole machine to pass through, the lower end of each circular through hole is provided with a boss (83), the bosses are used for propping against the cylindrical columns (13) on the bottom shell (1) to bear the pressure of the finished product of the whole machine, the face shell (8) is provided with a circular surrounding bone (84) and is sleeved on a cylinder (14) on the bottom shell (1) to jointly serve as a shaft of the transmission gear (6, and plays a role in reinforcing and protecting the cylinder (14), the face shell (8) is provided with a circular groove (85) which is sleeved on the other cylinder (15) of the bottom shell (1) and is jointly used as a shaft of the pawl (5) and plays a role in reinforcing and protecting the cylinder (15), the face shell (8) is provided with a section of long groove (86) which is internally provided with a side upright stud (87) which is used for guiding and limiting the movement of the locking rack (7) together with a corresponding section of long groove (19) on the bottom shell (1) and a corresponding side upright stud (110) in the long groove, the face shell (8) is provided with four screw through holes (88) for the screws to penetrate to lock the face shell (8) and the bottom shell (1), the upper end of each screw through hole (88) is provided with a concave table (89) for hiding screw heads, and the lower end of each screw through hole is provided with a surrounding bone (810) for positioning between the face shell (8) and the bottom shell (1), the top surface of the face shell (8) is provided with four concave platforms (811) which correspond to the four concave platforms (112) on the bottom shell (1) and are used for fixing and locking the device and a finished product shell when the device is assembled with the finished product, the device is pressed tightly in the finished product shell of the whole machine, the left side of the face shell (8) is provided with three sections of straight side vertical surfaces (812), the right side is provided with one section of straight side vertical surface (813), the lower side is provided with two sections of straight, one section of inclined and two sections of arc-shaped side vertical surfaces (814), and the upper end is open.

And finally, locking the face shell (8) and the bottom shell (1) by four screws (9) to complete the whole device.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the scope of the present invention, and the technical solutions and their concepts according to the present invention should be replaced or changed equivalently within the scope of the present invention.

Claims

1. A locking device, comprising: the device comprises a bottom shell (1), a main driving rack (2), an auxiliary driving piece (3), a limiting reset piece (4), a pawl (5), a transmission gear (6), a locking rack (7), a face shell (8) and a screw (9); the driving mechanism is characterized in that a main driving rack (2) is assembled in a bottom shell (1), an auxiliary driving piece (3) is assembled on the main driving rack (2) in an overlapping mode, a limiting reset piece (4) is assembled on the main driving rack (2) in an overlapping mode and on the right side of the auxiliary driving piece (3), a pawl (5) is assembled on the right side of the limiting reset piece (4), a transmission gear (6) is assembled on the upper side of the pawl (5) in a parallel mode, a locking rack (7) is assembled on the right side of the transmission gear (6), a face shell (8) is assembled finally, and the face shell (8) and the bottom shell (1) are locked together through a screw (9); the transmission mechanism is characterized in that a double driving system is formed by a main driving rack (2) and an auxiliary driving piece (3), a rotation stopping system is formed by a limiting reset piece (4), a pawl (5) and a ratchet gear (63) on a transmission gear (6), and the transmission gear (6) is a combined integrated transmission piece comprising a small gear (61), a large gear (62) and the ratchet gear (63).

2. A locking device according to claim 1, characterized in that said bottom shell (1) has a large oblong hole (11), three small circular holes (12), two open-bottomed cylindrical columns (13), one cylindrical column (14), another cylindrical column (15), one side stud (16), three side studs (17), one rack (18), one long groove (19), one side stud (110) in the long groove, four screw posts (111), four recessed seats (112) on the bottom, three straight side studs (113) on the left side of said bottom shell (1), one straight side stud (114) on the right side, two straight and oblique and two curved side studs (115) on the lower side, and an open upper end.

3. A locking device according to claim 1, wherein the main drive rack (2) has a large oblong hole (21) with a pair of vertical guide slots (22) and a pair of transverse guide slots (23), a section of the rack (24) with a resilient arm (25) and a resilient arm (26), and the left middle and upper right and lower right sections of the main drive rack (2) each have a raised or protruding platform surface (27).

4. A locking device according to claim 1, characterized in that the secondary driving member (3) is generally vertically elongated circular, and has a long surface and a solid body (31) at its upper and lower ends, a long hole (32) in the middle, a circular side stud (33) protruding from each of the upper and lower surfaces of the long hole, five saw-teeth (34) protruding on the right side, an L-shaped retaining portion (35) on the lower right side, a pair of U-shaped side studs (36) at the upper and lower ends of the bottom surface of the secondary driving member (3), and a pair of protruding cylinders (37).

5. A locking device according to claim 1, characterized in that said position-limiting return element (4) is overall of a shape similar to an inverted "C" with an opening to the left, a pair of guide grooves (41) being provided one above the other in the left half of the front, the right half of the front being raised by about one level compared to the left half, a straight surface (42) on the right and five indented teeth (43) on the left, and a pair of oblong guide ribs (44) being provided one above the other on the opposite, rear or upper side of said position-limiting return element (4) in a left-right transverse shape.

6. A locking device according to claim 1, characterized in that the pawl (5) is shaped like an "S", with an upper part being a pawl tip (51), a middle part being a cylinder (52) and a lower part being a spring arm (53), and the junction between the pawl tip (51) and the cylinder (52) being a narrow arc (55).

7. A locking device according to claim 1, characterized in that the transmission gear (6) is a coaxial and integrated gear set, from bottom to top, a pinion (61), a gearwheel (62), a ratchet wheel (63), a circular plate (64) is arranged between the pinion (61) and the gearwheel (62), and a circular through hole (65) is arranged in the center of the transmission gear (6).

8. A locking device according to claim 1, wherein the locking rack (7) is generally "7" -like in shape and comprises an upper transverse portion having an upwardly curved surface (71) and a right vertical portion comprising a length of the rack (72), and front and rear surfaces each having a protruding oblong peripheral rib (73) with an oblong recess (74) in the center.

9. A locking device according to claim 1, characterized in that said face-piece (8) corresponds in shape and most of its structure to the bottom-piece (1) and comprises a large oblong hole (81) with two circular through-holes (82), said circular through-holes (82) having at their lower ends a boss (83), said face-piece (8) further comprises a circular surrounding rib (84), a circular groove (85), a long groove (86), a side standing rib (87) in the long groove, four screw through-holes (88), said screw through-holes (88) having at their upper ends a boss (89) and at their lower ends a surrounding rib (810), said face-piece (8) having at its top surface four bosses (811), said face-piece (8) having at its left side three straight side elevations (812), at its right side one straight side elevation (813), at its lower side two straight and one oblique and two curved side elevations (814), the upper end is open.