阅读说明：本技术 一种定距锁止机构 (Fixed-distance locking mechanism ) 是由 张正伟 宋延奎 刘易斯 于 2021-05-31 设计创作，主要内容包括：本发明公开了一种定距锁止机构,包括外拨杆、中心转轴和弹簧,所述中心转轴上设置有外圆盘,靠近外圆盘的位置沿圆周方向设置有若干个扇形槽,所述外拨杆上设置有梳齿,梳齿部分能够在扇形槽内转动直至梳齿与扇形槽的侧面接触；所述梳齿的齿槽宽度与中心转轴的外圆盘厚度相同,使梳齿的各个齿槽能够卡入中心转轴的外圆盘上；所述弹簧安装在外拨杆的轴向上,用于使外拨杆复位；所述外拨杆的外侧端面上设置有转动结构,所述转动结构在外力的作用下能够带动外拨杆转动。本发明的定距锁止机构结构简单,利用外拨杆的转动可以快速地将外拨杆轴向锁死,并且由于梳齿齿槽之间的距离固定,因此可以控制外拨杆的轴向运动距离。(The invention discloses a fixed-distance locking mechanism which comprises an outer deflector rod, a central rotating shaft and a spring, wherein the central rotating shaft is provided with an outer disc, a plurality of fan-shaped grooves are formed in the positions, close to the outer disc, along the circumferential direction, the outer deflector rod is provided with comb teeth, and the comb teeth can rotate in the fan-shaped grooves until the comb teeth are contacted with the side faces of the fan-shaped grooves; the width of the tooth grooves of the comb teeth is the same as the thickness of the outer disc of the central rotating shaft, so that each tooth groove of the comb teeth can be clamped on the outer disc of the central rotating shaft; the spring is arranged on the axial direction of the outer driving lever and is used for resetting the outer driving lever; the outer end face of the outer driving lever is provided with a rotating structure, and the rotating structure can drive the outer driving lever to rotate under the action of external force. The fixed-distance locking mechanism has a simple structure, can quickly lock the outer driving lever axially by utilizing the rotation of the outer driving lever, and can control the axial movement distance of the outer driving lever because the distance between the tooth spaces of the comb teeth is fixed.)

1. A fixed-distance locking mechanism is characterized by comprising an outer deflector rod, a central rotating shaft and a spring, wherein the central rotating shaft is provided with an outer disc, one side of the outer disc is provided with a plurality of fan-shaped grooves distributed along the circumferential direction, the outer deflector rod is provided with comb teeth, and the comb teeth can rotate in the fan-shaped grooves until the comb teeth are contacted with the side surfaces of the fan-shaped grooves; the width of the tooth grooves of the comb teeth is the same as the thickness of the outer disc of the central rotating shaft, so that each tooth groove of the comb teeth can be clamped on the outer disc of the central rotating shaft; the spring is arranged on the axial direction of the outer driving lever and is used for resetting the outer driving lever; the outer end face of the outer driving lever is provided with a rotating structure, and the rotating structure can drive the outer driving lever to rotate under the action of external force.

2. The distance locking mechanism of claim 1 wherein said rotational configuration of said outer end surface of said outer toggle is a hexagonal notch.

3. Distance locking mechanism according to claim 1, wherein the outer end face of the central rotational shaft is provided with a hexagonal notch.

Technical Field

The invention belongs to the field of mechanical structures, and particularly relates to a fixed-distance locking mechanism.

Background

In many mechanical structures, an axial locking mechanism is used, namely, an axial moving part is pushed to move firstly, when the axial moving part reaches a preset position, the axial moving part is locked, however, the existing locking structure is complex, the separation and the locking cannot be realized quickly, and the axial moving distance of the axial moving part is not easy to control, therefore, the applicant designs a distance locking mechanism when developing the structure of the lock cylinder, the distance locking mechanism can be used for other mechanical structures besides the lock cylinder, the distance locking mechanism can be used for the quick separation and the locking, and the distance of the axial moving part can be controlled according to requirements.

Disclosure of Invention

In view of the above prior art deficiencies, it is an object of the present invention to provide a distance locking mechanism that is fast and fast to lock and unlock, and the distance of the axially moving member can be controlled as desired.

In order to achieve the purpose, the technical scheme of the invention is as follows:

a fixed-distance locking mechanism comprises an outer driving lever, a central rotating shaft and a spring, wherein an outer disc is arranged on the central rotating shaft, a plurality of sector grooves distributed along the circumferential direction are formed in one side of the outer disc, comb teeth are arranged on the outer driving lever, and the comb teeth can rotate in the sector grooves until the comb teeth are contacted with the side faces of the sector grooves; the width of the tooth grooves of the comb teeth is the same as the thickness of the outer disc of the central rotating shaft, so that each tooth groove of the comb teeth can be clamped on the outer disc of the central rotating shaft; the spring is arranged on the axial direction of the outer driving lever and is used for resetting the outer driving lever; the outer end face of the outer driving lever is provided with a rotating structure, and the rotating structure can drive the outer driving lever to rotate under the action of external force.

The distance between the tooth spaces of the comb teeth of the distance locking mechanism is fixed, when the distance locking mechanism is used, the outer driving lever is pushed to move axially, one tooth space of the comb teeth on the outer driving lever is aligned with the outer circular disc of the central rotating shaft, then the outer driving lever is rotated by utilizing the gap of the fan-shaped groove near the outer circular disc of the central rotating shaft, one tooth space of the comb teeth is clamped on the outer circular disc of the central rotating shaft, and the outer driving lever is axially locked. The distance locking mechanism has simple structure, can quickly lock the outer driving lever axially by utilizing the rotation of the outer driving lever, can control the axial movement distance of the outer driving lever because the distance between the tooth spaces of the comb teeth is fixed, and can be used for precise lock core structures and other mechanical structures.

Furthermore, the rotating structure of the end face of the outer side of the outer driving lever is a hexagonal notch. When the driving device is used, the driving device can be used for operating the square shaft matched with the hexagonal notch, the outer driving lever is pushed to move axially through the square shaft, then the outer driving lever is driven to rotate through the matching of the square shaft and the hexagonal notch, and the used tool is simple.

Furthermore, the outer side end face of the central rotating shaft is provided with a hexagonal notch. Because the outer end face of the central rotating shaft is provided with the hexagonal notch, the central rotating shaft can rotate by using a tool, and because the comb teeth act on the sector grooves, the outer deflector rod can be forced to reset in the circumferential direction when the central rotating shaft rotates.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments will be briefly introduced below, it is obvious that the drawings in the following description are only two of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.

Fig. 1 is a schematic view of an overall assembly structure of a lock cylinder.

Fig. 2 is a schematic view of a lock cylinder with a portion of the lock housing removed.

Fig. 3 is a schematic view of a lock cylinder with parts of the lock housing and the construction cylinder removed.

Fig. 4 is a structural diagram of the positional relationship of the lock cylinder outer shift lever, the inner shift lever, the first return spring and the marble.

Fig. 5 is a schematic structural view of a cylinder of a lock cylinder structure.

Fig. 6 is a schematic structural diagram of a central rotating shaft of a lock cylinder.

Fig. 7 is a side view of a lock cylinder.

Fig. 8 is a D-D sectional view of a lock cylinder.

Figure 9 is a schematic view of the distance locking mechanism.

Detailed Description

The technical solutions in the present invention will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the described embodiments are merely preferred embodiments of the present invention, rather than all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1-9, a lock core applying a fixed-distance locking mechanism is enumerated below, and includes a lock case 1 and a lock tongue 2, wherein 8 outer driving lever mounting holes are arranged on an end surface of the lock case 1, and an outer driving lever 3 is arranged in each outer driving lever mounting hole; a structural cylinder 4 is arranged in the lock shell 1, 8 axially-arranged stepped holes 42 are formed in the outer portion of a central hole of the structural cylinder 4, a first reset spring 5 and an inner deflector rod 6 are sequentially arranged in each stepped hole 42, the outer deflector rod 3 and the inner deflector rod 6 are axially aligned, and the outer deflector rod 3 can push the inner deflector rod 6 inwards to compress the first reset spring 5;

the outer circular surface of the structural cylinder 4 is provided with 8 radial marble holes 41, and marbles 7 are arranged in the marble holes 41; a limiting rod 8 is arranged in the lock shell 1, and two sides of the marble 7 act on the surfaces of the inner driving lever 6 and the limiting rod 8 respectively; an annular limiting groove 61 matched with the marble 7 is arranged on the inner driving lever 6, and the axial position of the annular limiting groove 61 on the inner driving lever 6 can be adjusted and depends on the axial movement distance of the outer driving lever 3;

the lock shell is characterized in that a center rotating shaft 9 is arranged in the lock shell 1, the center rotating shaft 9 can be driven by a key to rotate, 8 sets of axial positioning modules 91 are arranged on the outer circular surface of the tail portion of the center rotating shaft 9, each set of axial positioning module 91 comprises 4 positioning grooves which are axially distributed, a structure cylinder limiting block 43 is arranged in the structure cylinder 4, an inner driving lever limiting block 62 is arranged on the inner driving lever 6, the structure cylinder limiting block 43 and the inner driving lever limiting block 62 are positioned in a groove between two adjacent sets of axial positioning modules 91 in an initial state, when the center rotating shaft 9 rotates for a preset angle, the inner driving lever limiting block 62 is clamped into one of the positioning grooves of the axial limiting block modules 91, the structure cylinder limiting block 43 and the axial positioning modules 91 are positioned on the same axial line, and the structure cylinder limiting block 43 is positioned on the inner side of the axial positioning modules 91 in the axial direction, so that the inner driving lever 6 can rotate, The structural cylinder 4 is axially linked with the central rotating shaft 9;

the limiting rod 8 is of a stepped shaft structure, the diameter of the tail section of the limiting rod 8 is larger than that of the middle section of the limiting rod, inclined surface transition is adopted between the middle section and the tail section, in an initial state, the marble 7 is attached to the surface of the middle section of the limiting rod 8, when the central rotating shaft 9 rotates for a preset angle, the central rotating shaft 9 is pushed inwards at the moment, the structure cylinder 4 moves inwards, the marble 7 is expanded outwards under the action of the inclined surface transition part of the limiting rod, the marble 7 is extruded into the annular positioning groove 61 at the moment, the marble 7 is attached to the surface of the tail section of the limiting rod 8 (the marble 7 is always attached to the surface of the limiting rod), the front section of the limiting rod 8 is inserted into the central rotating shaft 9, and the limiting rod 8 and the central rotating shaft 9 can rotate synchronously; it should be noted that, the marble 7 is affected by the slope transition part of the limit rod to limit the relative axial distance between the limit rod 8 and the central rotating shaft 9, only when all the marbles are extruded to the annular limit groove correctly, the relative axial distance between the limit rod 8 and the central rotating shaft 9 will be reduced, until the front section of the limit rod 8 is inserted into the structure matched with the inside of the central rotating shaft, so that the limit rod 8 and the central rotating shaft 9 can rotate synchronously, because the diameter of the tail section is larger than the inner hole diameter of the central rotating shaft 9, i.e. the tail section of the limit rod cannot be inserted into the central rotating shaft 9, at this time, the relative axial distance between the limit rod 8 and the central rotating shaft 9 will not be further reduced, and the marble 7 is attached to the surface of the tail section of the limit rod;

the tail part of the structure barrel 4 is provided with a spring hole (not marked in the figure), the diameter of the spring hole is larger than that of a central hole of the structure barrel, the middle part of the limit rod 8 is provided with a boss which can be square, cross-shaped and the like, and the boss is arranged in the lock tongue 2 so that the limit rod 8 can drive the lock tongue 2 to rotate; the limiting rod 8 is sleeved with a second reset spring 10 and a third reset spring 12, the second reset spring 10 and the third reset spring 12 are respectively installed in spring holes of the structure cylinders on the inner side and the outer side, when the structure cylinders move inwards under the extrusion of the central rotating shaft 9, the second reset spring 10 compresses to generate an outward acting force on the structure cylinders to reset the structure cylinders, when a key does not have marbles exactly and is blocked by a transition part of the limiting rod to enable the limiting rod to move axially inwards, the third reset spring compresses to generate an outward acting force on the limiting rod to reset the limiting rod (generally, a lock core has an inner structure and an outer structure, the second reset spring and the third reset spring have the same functions and are not repeated herein), when all the marbles are extruded to an annular limiting groove correctly, the relative axial distance between the limiting rod 8 and the central rotating shaft 9 is reduced, until the front end of the limit rod is inserted into the matching structure in the central rotating shaft 9, the central rotating shaft 9 is rotated again, and the central rotating shaft 9 drives the bolt 2 to rotate through the limit rod 8;

the central rotating shaft 9 is provided with an outer disc 95, the outer side of the outer disc 95 is provided with 8 fan-shaped grooves 96 distributed along the circumferential direction, the outer driving lever 3 is provided with comb teeth 31, the width of the tooth grooves of the comb teeth 31 is the same as the thickness of the outer disc 95, and the front end face of the outer driving lever 3 is provided with a hexagonal notch which is used for driving the outer driving lever 3 to rotate by matching with an external tool, of course, the shape of the hexagonal notch is also square, diamond and the like, and even can be convex.

The unlocking process of the lock cylinder is as follows: firstly, a key acts on the outer deflector rod 3 to extrude the outer deflector rod 3 inwards, the outer deflector rod 3 pushes the inner deflector rod 6 to move inwards and compress the first reset spring 5, so that the marble 7 is axially aligned with the annular limiting groove 61 (in order to prevent the marble 7 from falling into the annular limiting groove 61 under the action of gravity at the moment, the limiting rod 8 can be magnetized, and attraction force is generated on the marble 7 through the magnetized limiting rod), then the central rotating shaft 9 is rotated for a preset angle, the inner deflector rod limiting block 62 is clamped into one of the positioning grooves, the central rotating shaft 9 is extruded at the moment, the central rotating shaft 9 is pushed to move inwards, the structure cylinder 4 moves inwards to compress the second reset spring 10 until the marble 7 is expanded due to the action of the transition part of the limiting rod 8, the marble 7 is extruded into the annular positioning groove 61, the front section of the limiting rod 8 is inserted into the central rotating shaft 9 at the moment, so that the limiting rod 8 and the central rotating shaft 9 can rotate synchronously, the central rotating shaft 9 is rotated again, and the central rotating shaft 9 drives the bolt 2 to rotate through the limiting rod 8.

It should be noted that, when the key did not match, when structure section of thick bamboo 4 inwards moved, had at least one marble 7 to receive 8 transition parts of spacing stick's blockking all the time, made the anterior segment of spacing stick 8 can not insert and make both can rotate in step in the central pivot 9, that is to say that can't normally drive the spring bolt rotation when the key did not match, guaranteed the security of lock core.

When the lock is unlocked, the outer driving lever 3 can be firstly extruded by using a tool and an instruction, when the outer driving lever 3 moves inwards to reach a preset position, the outer driving lever 3 is rotated by using the tool and the square groove at the front end of the outer driving lever, so that the tooth grooves on the outer driving lever 3 are clamped to the outer disc 95 of the central rotating shaft 9, according to the principle, the axial movement distance of each outer driving lever 3 can be sequentially corrected by using the tool according to the instruction, after the correction is completed, the central rotating shaft and the rotating central rotating shaft are sequentially extruded to complete the unlocking, and in addition, the outer driving lever 3 is extruded and reset by the central rotating shaft fan-shaped groove 93 when the central rotating shaft is rotated, so that the automatic reset is realized. In other words, each outer shift lever 3 can be fixed by a tool and then the unlocking can be completed by pressing and rotating the central rotating shaft 9.

In this embodiment, outer driving lever mounting hole is the step hole, outer driving lever 3 is the step axle construction, and both ends diameter is greater than the middle section diameter to the front end is the toper, and during the installation, the toper part of outer driving lever 3 front end is crowded in the aperture in step hole, makes the front end of outer driving lever 3 receive the effect of step and prevents that outer driving lever 3 from deviating from, and the tail end diameter of outer driving lever 3 is greater than the aperture diameter in step hole, and when extrudeing outer driving lever 3, the tail end of outer driving lever 3 receives the spacing of step hole in order to restrict outer driving lever 3's axial motion distance. Because the axial of the outer driving lever 3 is limited, the unlocking process is simpler and more convenient only by inwards extruding the outer driving lever 3 without controlling the axial movement distance of the outer driving lever 3.

For convenient assembly, the lock case 1 needs to be designed into a split structure, the lock case 1 of the embodiment is composed of two parts, one part of the lock case is provided with a right-angled bent part, the other part of the lock case is provided with a matched notch, the right-angled bent part of one part of the lock case is inserted into the notch of the other part of the lock case during installation, and the overlapped parts are connected by two screw rods 11. The screw rod of this embodiment of course can also adopt modes such as riveting to replace, but adopts screw rod connection can dismantle the lock core, and later maintenance is maintained more easily.

In this embodiment, an inner protrusion is disposed in the lock housing 1, the central rotating shaft 9 is sequentially provided with an eccentric slot 94, a sliding slot 93 and an annular slot 92, which are communicated with each other, in an initial state, the inner protrusion of the lock housing 1 is located in an eccentric portion of the eccentric slot 94, so that the central rotating shaft 9 is axially fixed, when the central rotating shaft 9 rotates by a predetermined angle, the inner protrusion is axially aligned with the sliding slot 93, when the central rotating shaft 9 is pressed, the inner protrusion relatively moves along the axial direction of the sliding slot, so that the inner protrusion moves into the annular slot 92, and when the central rotating shaft 9 is rotated again, the inner protrusion freely rotates along the annular slot 92. Because the unlocking process of the lock core is extrusion deflector rod-rotation center rotating shaft-extrusion center rotating shaft-rotation center rotating shaft, when the center rotating shaft is rotated in the second step, the rotating angle of the inner protrusion of the lock shell 1 in the eccentric groove 94 is the preset angle of the center rotating shaft 9, the rotating angle of the center rotating shaft 9 does not need to be controlled in the unlocking process of the second step through the limiting, and the unlocking is simpler. Of course, it should be noted that the eccentric slot 94, the sliding slot 93 and the annular slot 92 provided on the central rotating shaft 9 may also be provided on the lock housing 1, that is, the inner protrusion on the lock housing 1 and the limiting slot on the central rotating shaft 9 are reversely provided, but the grooving process on the inner wall of the lock housing 1 is difficult, and the processing cost is high.

The center pivot 9 includes center pivot main part and end 12, end 12 is including setting up the end cap at center pivot main part front end and inserting the dwang in the center pivot main part, the end cap constitutes ring channel 92 with center pivot main part front end combination, just so need not process ring channel 92 alone, also simpler during simultaneous processing eccentric groove 94 and spout 93, the dwang can be the shapes such as square pole simultaneously, can drive center pivot main part and rotate to the front end of dwang is provided with the screw hole, connects into whole with the end through screw 13 with center pivot main part. Of course, the structural cylinder 4 can also be designed as a one-piece structure, but with more difficulty and higher costs in manufacture.

In this embodiment, a hexagonal groove is formed on the front end surface of the end 12, and the hexagonal groove is matched with the protrusion on the key to drive the central rotating shaft 9 to rotate. Of course, the grooves on the tip 12 may be designed to be convex, and even the shape of the grooves may be square, diamond or irregular.

In this embodiment, the middle part of the limit rod 8 is in a square block shape, the second return spring 10 and the third return spring 12 are respectively installed on two sides of the square block part, a square groove is formed in the lock tongue 2, and a square boss in the middle part of the limit rod 8 is installed in a square hole in the lock tongue 2, so that the limit rod 8 can drive the lock tongue 2 to rotate; the both ends of gag lever post 8 are the step shaft, and both ends tip is square pole (can also be other shapes certainly), and when the tip of gag lever post 8 inserted the inside recess rather than the complex of central pivot 9, central pivot 9 drove gag lever post 8 and rotates.

This lock core is at whole unlocking process, and structure section of thick bamboo 4 does not need the rotation, therefore this embodiment is provided with along the guide block 44 of axial arrangement on the excircle of structure section of thick bamboo 4, is provided with the guide way with guide block 44 complex in lock shell 1, and at the in-process of 4 axial motion of structure section of thick bamboo like this, the angle of structure section of thick bamboo 4 can not change, has guaranteed the stable in structure of lock core.

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, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.