CN108590365B

CN108590365B - Lock core

Info

Publication number: CN108590365B
Application number: CN201810775205.5A
Authority: CN
Inventors: 朱昱旻; 钱考锦; 龚章平; 闵浩
Original assignee: Dongwu Shian Iot Technology Jiangsu Co ltd
Current assignee: Dongwu Shian Iot Technology Jiangsu Co ltd
Priority date: 2018-07-16
Filing date: 2018-07-16
Publication date: 2024-05-03
Anticipated expiration: 2038-07-16
Also published as: CN108590365A; WO2020015600A1

Abstract

The invention discloses a lock cylinder, which comprises an inner container, wherein a driving device is arranged in the inner container, the output end of the driving device is a rotating shaft, the rotating shaft is fixedly connected with a first cam and drives the first cam to rotate, a second cam is sleeved on a rotating plane of the first cam, and the first cam drives the second cam to rotate. The invention has the beneficial effects that the requirements on the motor and the first cam are lower due to the cooperation of the first cam and the second cam, and the service life of the lock cylinder can be obviously prolonged. The design of the first groove not only fixes the inner container, but also can realize the rotary reversing of the inner container.

Description

Lock core

Technical Field

The invention relates to a lockset component, in particular to a lock cylinder.

Background

The invention relates to a pair of complete locks, which comprises a key and a lock cylinder. Where it is applicable, such as in a file room, where there are a plurality of file cabinets, if each of the file cabinets is provided with a key, finding the correct key may result in a waste of time when unlocking is required. Therefore, the rotation of the electronic key driving motor is selected to realize unlocking.

The technical scheme adopted in the prior art is that the unlocking is realized by driving a cam to rotate through the motor, and the technical scheme has the defect that the damage of the cam and the motor can be caused by torque caused by the rotation of the motor, so that the service life of the lock core is influenced.

Disclosure of Invention

In order to overcome the defects in the prior art, the invention provides a lock cylinder which is in a double-cam structure and is matched with a motor rotating shaft to rotate, wherein a first cam is directly connected with the motor rotating shaft and is responsible for torque transmission; the second cam is connected with the first cam and is responsible for the clutch of the lock cylinder.

In order to achieve the above purpose, the present invention adopts the following technical scheme:

the utility model provides a lock core, includes the inner bag, its characterized in that is provided with drive arrangement in the inner bag, drive arrangement's output is the pivot, the pivot is fixed with first cam connection to drive first cam rotation, first cam has cup jointed the second cam on its rotation plane, first cam drives the rotation of second cam.

Preferably, the driving device is a motor.

As a preferable scheme, the second cam is in a ring shape as a whole and comprises an arc-shaped upper part and a lower part, and further comprises a left part and a right part with an inner ring invagination and an inner ring protruding; the first cam is integrally disposed within the inner race of the second cam.

Preferably, the shape of the second cam inner ring is integrally 8-shaped.

Preferably, the end points of the upper part at the inner ring are point a and point B, the end points of the lower part at the inner ring are point C and point D, the center point of the second cam is point O, and the line segments AB and CD are part of a circle formed by taking the line segment OA as a radius.

Preferably, both ends of the first cam are arc-shaped.

As a preferable scheme, the end points of the upper part at the inner ring are a point A and a point B, the end points of the lower part at the inner ring are a point C and a point D, the high point of the left part protruding from the inner ring is a point E, and the high point of the right part protruding from the inner ring is a point F; when the first cam drives the second cam to rotate, the line segment AE and the line segment DF are both force-receiving units or the line segment CE and the line segment BF are both force-receiving units.

Preferably, the first cam is rectangular, rhombohedron or triangular.

Preferably, the lock cylinder further comprises a tailstock which is in contact with the liner and is matched and fixed.

As a preferable scheme, at least one notch is arranged on the circumference of the upper bottom surface of the inner container, a bulge corresponding to the notch is arranged at the lower end of the tailstock, and the notch and the bulge are clamped together.

Preferably, the number of the notches and the protrusions is two.

As the preferred scheme, the tailstock includes the body, the body is whole to become two-stage cylindric, is cylinder and lower cylinder respectively, and the diameter of lower cylinder is the same with the external diameter of inner bag, and the upper end of going up the cylinder is provided with the output of lock core.

Preferably, the lower end of the lower cylinder of the body is provided with a protruding surface, the protruding surface is integrally cylindrical, and the diameter of the protruding surface is slightly smaller than the inner diameter of the liner.

As a preferable scheme, the upper surface of the second cam is provided with limit posts at the left part and the right part respectively; the bottom surface of the lower cylinder of the body is provided with two symmetrical waist-shaped holes, and when the notch and the bulge are clamped together, the limit column also falls into the range of the waist-shaped holes.

As a preferable scheme, after the limiting column is contacted with the two ends of the waist-shaped hole, the included angle formed by two points where the central shaft of the limiting column is positioned and the connecting line of the central point of the bottom surface of the lower cylinder is 80-100 degrees.

As the preferred scheme, still include the shell, the shell is whole cylindric, the bottom surface is provided with the fourth through-hole on the shell, the bottom surface is provided with the fifth through-hole under the shell, the diameter of fourth through-hole equals the diameter of the last cylinder of tailstock body, is less than the diameter of cylinder down.

As a preferable scheme, a first groove is formed along the direction of the circumferential section of the liner, two pairs of fixing holes are formed at the corresponding height position of the shell, and only one pair of fixing holes is inserted into the pin.

Preferably, the pair of fixing holes are coaxial circumferential holes.

Preferably, the two endpoints of the first groove form an angle between 180 degrees and 190 degrees with the connecting line of the circle center.

As a preferable scheme, at least one locking hole is formed in the position, which is located on the same horizontal plane with the second cam, of the inner container, and locking steel balls are arranged in the locking hole.

As a preferable scheme, the number of the locking holes and the number of the locking steel balls are two respectively.

Preferably, limit grooves are formed in the outer sides of the upper portion and the lower portion of the second cam.

As a preferable scheme, a positioning hole is formed in the horizontal direction of the lower cylinder of the body of the tailstock, a spring is arranged in the positioning hole, and two ends of the spring are respectively provided with a positioning steel ball.

As a preferable scheme, the upper bottom surface of the inner container is provided with a first through hole, and the lower bottom surface of the inner container is provided with a second through hole; the bottom of the inner container is provided with a guard plate, the guard plate is in a circular ring shape, a third through hole is formed in the middle of the guard plate, and the input end of the motor penetrates through the third through hole and is exposed at the bottom surface of the inner container.

Preferably, the motor input terminal is a port for receiving an electronic key command and a power supply.

The invention has the beneficial effects that the requirements on the motor and the first cam are lower due to the cooperation of the first cam and the second cam, and the service life of the lock cylinder can be obviously prolonged. The design of the first groove not only fixes the inner container, but also can realize the rotary reversing of the inner container.

Drawings

Fig. 1 is an exploded view of a lock cylinder.

Fig. 2 is a schematic view of the structure of the liner.

Fig. 3 is a schematic view of a first cam structure and connection to a spindle.

Fig. 4 is a schematic perspective view of a second cam.

Fig. 5 is a second cam cross-sectional view.

Fig. 6 is a schematic view of the tailstock structure.

Fig. 7 is a plan view of the foot print configuration.

Fig. 8 is a cross-sectional view of the cylinder cam surface of rotation with the cylinder closed.

Fig. 9 is a cross-sectional view of the cylinder cam surface of rotation when the cylinder is open.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1 and fig. 2, a lock cylinder 1 includes a liner 11, where the liner 11 is used to place a part of a component of the lock cylinder 1, the liner 11 is a hollow cylinder, and the liner 11 may also be made into a non-cylindrical shape, and it is generally considered that the liner 11 is a cylindrical shape as a preferred scheme. The upper bottom surface 111 of inner bag 11 is provided with first through-hole 113, and the lower bottom surface 112 of inner bag 11 is provided with second through-hole 114, and the diameter of first through-hole 113 and second through-hole 114 is too little can adjust as required.

The bottom of the liner 1 is provided with a guard plate 12, the guard plate 12 is provided with a magnetic device 13, the guard plate 12 and the magnetic device 13 are both in a ring shape, and a third through hole 115 is arranged between the guard plate 12 and the magnetic device 13. In order that the shield plate 12 does not fall off from the liner bottom surface 111, the diameter of the shield plate 12 is larger than the diameter of the first through hole 113. The input end 141 of the motor 14 passes through the third through hole 115 and is exposed at the bottom surface of the liner 11. Here, the diameter of the third through hole 115 is smaller than the width of the motor 14 and larger than the width of the input terminal 141, so that the motor 14 is not separated from the third through hole 115, and the input terminal 141 can be completely exposed. The motor input end 141 is a port for receiving the electronic key command and the power, and when the motor input end 141 receives the power and the correct unlocking command, the motor output end, that is, the rotating shaft 142 of the motor 14 is driven to rotate.

The following will relate to an important innovation point of the present embodiment. In general, the motor rotating shaft drives a cam to rotate to realize the unlocking and the closing of the lockset, and the defect of the design is that when external force acts on the cam and then acts on the motor rotating shaft, the probability of the damage of the rotating shaft is greatly improved. The core scheme of the design of the embodiment is to design two cams to work cooperatively so as to prevent the motor rotating shaft from being damaged by external force.

As shown in fig. 3, the rotating shaft 142 is connected to the first cam 15, the first cam 15 rotates along with the rotating shaft 142, and the first cam 15 drives the second cam 16 to rotate. The center point 151 of the first cam 15 is fixedly connected with the rotating shaft 142.

As shown in fig. 4 and 5, the second cam 16 is formed in an annular shape as a whole, and includes an arc-shaped upper portion 161 and a lower portion 162, and further includes a left portion 163 and a right portion 164 in which an outer ring is recessed and an inner ring is protruded, and the upper portion 161, the lower portion 162, the left portion 163, and the right portion 164 surround to form the second cam.

The second cam 16 is integrally disposed in the inner container 11 due to the arc-shaped upper and lower portions 161 and 162, and rotates in the inner container 11. In order to achieve the purpose that the second cam 15 drives the second cam 16 to rotate, the first cam 15 needs to be integrally placed inside an inner ring 165 of the second cam, and the inner ring is integrally shaped like an 8.

For a detailed description of the structure of the inner ring 165 of the second cam, referring to the sectional view of the second cam 16 shown in fig. 5, the end points of the inner ring of the upper portion 161 are points a and B, the end point of the inner ring of the lower portion 162 is points C and D, the high point of the inner ring protrusion of the left portion 163 is point E, the high point of the inner ring protrusion of the right portion 164 is point F, and after the above six points are determined, the structure of the inner ring 165 of the second cam can be determined. The up, down, left, and right are merely for convenience of description of the structure of the second cam 16, and the up, down, left, and right are often changeable when the angle of view of the second cam 16 is changed.

The line segments AB and CD are arc-shaped, and if the center point O of the second cam is a circular point and the line segment OA is a radius, the line segments AB and CD are part of the circle. The line segment AE, the line segment DF and the extension lines thereof are parallel lines; similarly, the line segments CE, BF and their extended lines are parallel lines. When the first cam drives the second cam to rotate, the line segment AE and the line segment DF are both force-receiving units or the line segment CE and the line segment BF are both force-receiving units. The first cam 15 may be selected to have a rectangular parallelepiped shape, a rhombohedron shape, or a triangular shape, or even other irregular shapes, as long as the above conditions are satisfied.

It can be seen that the structure of the first cam 15 is often variable, and the condition for generating constraint on the structural shape thereof includes two points, one is that the whole structure is limited in the inner ring range of the second cam 16, and the other is that the line segment AE, the line segment DF or the line segment CE, the line segment BF are stressed simultaneously. The person skilled in the art can select the first cams of different structures on the premise that the above is satisfied.

When the first cam 15 and the second cam 16 cooperate, the center points of the rotation shaft 142, the first cam 15, and the second cam 16 are considered to coincide without taking errors into consideration.

To avoid the angle of the arc AB and the arc CD, the two ends 152 and 153 of the first cam 15 are designed to be arc-shaped to match the arc AB and the arc CD of the inner ring of the second cam 16.

After the above-mentioned structures of the first cam 15 and the second cam 16 are determined, it is possible to realize that the first cam 15 drives the second cam 16 to rotate, whether clockwise or counterclockwise.

As shown in fig. 1, as the lock cylinder, the final technical purpose of this embodiment is to achieve closing and opening of the lock cylinder, so the lock cylinder 1 further includes a tailstock 17 contacting and being fixed in cooperation with the upper bottom surface 111 of the liner 11, two notches 116 are provided on the circumference of the upper bottom surface 111 of the liner 11, at least one or more notches 116 may be provided, and in view of the comprehensive technical effect and manufacturing cost, the number of notches is preferably two.

As shown in fig. 6 and 7, the tailstock 17 includes a body 171, the body 171 is integrally formed into a two-step cylinder shape, which is an upper cylinder 172 and a lower cylinder 173, the diameter of the lower cylinder 173 is the same as the outer diameter of the liner 11, the upper end of the upper cylinder 172 is provided with an output end 174 of the lock core, so as to realize the opening and closing of the lock, in this embodiment, the output end 174 of the lock core is provided with a threaded column, and in the practical application process, the output end 174 of the lock core can be provided with any other shape.

The lower end of the body 171 is provided with a protruding surface 175, the protruding surface 175 is integrally cylindrical, and the diameter of the protruding surface 175 is slightly smaller than the inner diameter of the liner 11, so that the protruding surface 175 can be placed in the liner 11 without being trapped in the liner 11.

In order to fix the tailstock 17 and the liner 11, a protrusion 176 corresponding to the notch 116 is provided at the lower end of the lower cylinder 173, and the notch 116 and the protrusion 176 are clamped together to realize synchronous rotation of the liner 11 and the tailstock. To achieve this, it is also necessary to force the second cam 16 with the tailstock.

As can be seen from the foregoing, the second cam 16 is generally annular and includes an upper surface 166 and a lower surface 167, the lower surface 167 being smooth and being in close proximity to, but not in contact with, the motor 14 within the liner 11, and generally, the lower surface 167 of the second cam 16 being not a force bearing surface. Conversely, the upper surface 166 is provided with a stop post 168 on the left portion 163 and the right portion 164, respectively.

The protruding surface 175 is provided with two symmetrical waist-shaped holes 177, and when the notch 116 and the protrusion 174 are clamped together, the limit column 168 also falls into the range of the waist-shaped holes 177. When the motor shaft 142 drives the first cam 15 to rotate, the first cam 15 drives the second cam 16 to rotate, and the second cam 16 drives the tailstock 17 to rotate. The waist-shaped hole 177 not only serves as a force receiving unit for the limit post 168, but also serves to limit the rotation angle of the second cam. Assuming that the waist-shaped hole 177 is not provided with any device cooperating with the limit post 168 in the circumference thereof, the force on the limit post 168 cannot be transmitted to the tailstock 17, and the unlocking function cannot be realized. Assuming that the waist-shaped hole 177 is designed as a circular hole, after the limit post 168 is engaged with the circular hole, there is no free rotation space, so that the second cam 16 and the tailstock 17 form a virtually integrated structure, which is not beneficial to the protection of the motor 14. Therefore, in this embodiment, the rotation angle of the limiting post 168 in the waist-shaped hole 177 is preferably 90 degrees, and from the perspective of achieving the technical effect of the present invention, the rotation angle of the limiting post 168 in the waist-shaped hole 177 is between 80 degrees and 100 degrees, which can achieve the technical effect better. Correspondingly, as shown in fig. 7, after the limiting column 168 contacts with two ends of the waist-shaped hole 177, two points where the central axis of the limiting column 168 is located are respectively a point G and a point H, and an included angle formed by a connection line between the point G and the point H and a central point O of the protruding surface 175 is between 80 degrees and 100 degrees.

After the inner container 11 and the tailstock 17 are fixed, the lock cylinder also needs to comprise a shell 18, the shell 18 is integrally cylindrical, threads are arranged on the outer surface of the shell 18, and the lock cylinder is convenient to install when in use. The liner 11 and the tailstock 17 are free to rotate within the housing 18 at all times without other external force restrictions. The housing upper bottom surface 181 is provided with a fourth through hole 183, the housing lower bottom surface 182 is provided with a fifth through hole 184, and the diameter of the fourth through hole 183 is equal to the diameter of the upper cylinder 172 of the body 171 of the tailstock 17 and smaller than the diameter of the lower cylinder 173, so that the tailstock 17 can be fixed to the housing upper bottom surface 181. At this time, the tailstock 17 and the liner 11 can move only in the direction of the lower bottom surface of the housing, and for this purpose, a first groove 186 is provided along the direction of the circumferential cross section of the liner 11, and two pairs of fixing holes 187 are provided at positions corresponding to the height of the housing, and any pair of fixing holes are coaxial circumferential holes. When the first groove 186 is located between a pair of fixing holes 187, a pin 188 is inserted between the two fixing holes, and the pin plays a role of fixing and limiting.

The liner cannot move downward freely due to the pins 188 engaged in the first grooves 186, as seen in the direction of the upward and downward force of the housing 18; as can be seen from the above, the tailstock cannot move freely upward because the diameter of the fourth through hole 183 is smaller than the diameter of the tailstock lower cylinder 173; the two designs fix the tailstock 17 and the liner 11 in the up-down direction.

From the perspective of rotation of the tailstock 17 and the liner 11 within the housing 18, if the first recess is 360 degrees, even if the pin 188 is inserted into the first recess 186, the tailstock 17 and the liner 11 can freely rotate without restriction, and for this reason, the angle formed by the connection line between the two end points of the first recess 186 and the center of the circle needs to be controlled between 180 degrees and 190 degrees. As mentioned above, two pairs of fixing holes 187 are provided on the housing 18, and the rotation direction of the tailstock 17 and the liner 11 can be reversed by inserting pins through the other pair of fixing holes 187.

The second cam 16 is formed in an annular shape as a whole, and includes an arc-shaped upper portion 161 and a lower portion 162, and further includes a left portion 163 and a right portion 164 in which an outer ring is recessed and an inner ring is projected. When the second cam 16 is fitted into the inner container 11, the upper portion 161 and the lower portion 162 are each formed in a corresponding circular arc shape, and thus the distance between the outer sides of the upper portion 161 and the lower portion 162 and the inner wall of the inner container 11 is not substantially changed. Since the left and right portions 163 and 164 have the design of the inner ring, the distances between the points outside the left and right portions 163 and 164 and the inner wall of the liner 11 are significantly changed.

At least one locking hole 190 is arranged on the inner container 11 and is positioned on the same horizontal plane with the second cam, locking steel balls 191 are arranged in the locking hole 190, and a preferable design is to select two locking holes and locking steel balls, and even a plurality of locking holes and locking steel balls can be arranged.

As shown in fig. 8 and 9, this embodiment will take two locking holes 190 and locking balls 191 as examples, and describes the cooperative working relationship between the locking balls 191 and other components. In the initial state, the outer sides of the upper portion 161 and the lower portion 162 of the second cam 16 respectively support against the locking steel balls 191, the locking steel balls 191 are located in the second groove 189 in the inner wall of the outer shell 18, and the direction in which the second groove 189 is arranged is perpendicular to the rotating direction of the inner container 11, so that the two sides of the second groove 189 limit the rotation of the inner container 11, the lock cylinder is in the closed state at this time, and the inner container 11 and the tailstock 17 cannot rotate. When the lock core is required to be opened, a power supply and a secret key are input from the input end 141 of the motor, the motor 14 acts, the rotating shaft 142 drives the first cam 15 to rotate, and then the second cam 16 is driven to rotate by 90 degrees. Due to the recessed design of the left and right cam portions 163 and 164, the locking steel balls 191 can move freely in the recessed direction, so that the locking steel balls 191 are separated from the constraint of the second groove 189, and at this time, the liner 11 can rotate freely.

In order to maintain a relatively stable initial positional relationship between the liner 11 and the housing 18, a positioning hole 178 is formed in the lower cylinder 173 of the body 171 of the tailstock 17, a spring 179 is disposed in the positioning hole 178, two positioning steel balls 192 are disposed at two ends of the spring 179, and when the positioning steel balls 192 rotate to the second groove 189, the positioning steel balls 192 move towards the second groove 189 due to the pressure of the spring 179 and can keep the positioning steel balls 192 from displacing in the second groove 189, thereby realizing the positioning function. The positioning hole 178 can also be made into an impermeable structure, so that two holes are formed, and springs are respectively placed in the two holes, so that similar technical effects can be achieved.

The core of the difference between the functions of the locking steel ball 191 and the positioning steel ball 192 is that the second cam 16 is in contact with the locking steel ball 191, the second cam 16 is of a rigid structure, and the locking steel ball 191 cannot move like the second cam upper part 161 and the second cam lower part 162 after entering the second groove 189. The spring 179, which is in contact with the positioning steel ball 192, is an elastic member, and a small rotational force is applied to the tailstock 17, so that the positioning steel ball 192 moves in the direction of the spring 179, thereby being out of the limit of the second groove 189.

When the locking steel ball 191 is in contact with the upper portion 161 and the lower portion 162 of the second cam 16, due to the smooth contact, if the lock cylinder is affected by some shock or vibration, the rotation of the second cam 16 may be caused, resulting in incorrect opening of the lock cylinder. In order to solve the above problem, a limit groove 169 is provided on the outer side of the upper portion 161 and the lower portion 162 of the second cam 16.

The provision of the magnetic device 13 in the aforementioned liner is not an essential feature of the present invention, and the magnetic device 13 is provided to cooperate with other components to achieve the function of monitoring the position of the components. The detailed technical scheme is disclosed by other invention patents.

When the lock cylinder is changed from the closed initial state to the open state, the first cam 15 is often rotated by an angle a in the opposite direction to the unlocking direction, and then rotated in the unlocking direction to unlock the lock cylinder, and the determination of the selection of the angle a is also disclosed in another patent.

Claims

1. A lock core comprises an inner container, and is characterized in that,

The inner container is internally provided with a driving device, the output end of the driving device is a rotating shaft, the rotating shaft is fixedly connected with the first cam and drives the first cam to rotate, the first cam is sleeved with a second cam on a rotating plane of the first cam, and the first cam drives the second cam to rotate;

the second cam is in an annular shape and comprises an arc-shaped upper part, an arc-shaped lower part, a left part and a right part, wherein the outer ring of the left part is inwards sunken, and the inner ring of the right part is protruded; the first cam is integrally arranged in the inner ring of the second cam;

The shape of the second cam inner ring is integrally 8-shaped;

the upper part is provided with a point A and a point B at the end point of the inner ring, the lower part is provided with a point C and a point D at the end point of the inner ring, the center point of the second cam is a point O, and the line segments AB and CD are part of a circle formed by taking the line segment OA as a radius;

the end points of the upper part at the inner ring are points A and B, the end points of the lower part at the inner ring are points C and D, the high point of the left part protruding from the inner ring is point E, and the high point of the right part protruding from the inner ring is point F; when the first cam drives the second cam to rotate, the line segment AE and the line segment DF are both force-bearing units or the line segment CE and the line segment BF are both force-bearing units; the first cam has a certain free-turning margin inside the second cam.

2. A lock cylinder according to claim 1, wherein,

The driving device is a motor.

3. A lock cylinder according to claim 1, wherein,

The first cam is in a cuboid shape, a rhombus shape or a triangular shape.

4. A lock cylinder according to claim 2, wherein,

The lock cylinder also comprises a tailstock which is in contact with the liner and is matched and fixed.

5. A lock cylinder according to claim 4, wherein,

At least one notch is arranged on the circumference of the upper bottom surface of the inner container, a bulge corresponding to the notch is arranged at the lower end of the tailstock, and the notch and the bulge are clamped together.

6. A lock cylinder according to claim 5, wherein,

The number of the notches and the protrusions is two.

7. A lock cylinder according to claim 4, wherein,

The tailstock comprises a body, the body is integrally formed into a two-stage cylinder shape, the two-stage cylinder shape is an upper cylinder and a lower cylinder, the diameter of the lower cylinder is the same as the outer diameter of the liner, and the upper end of the upper cylinder is provided with an output end of the lock cylinder.

8. A lock cylinder according to claim 7, wherein,

The lower end of the lower cylinder of the body is provided with a protruding surface, the protruding surface is integrally cylindrical, and the diameter of the protruding surface is slightly smaller than the inner diameter of the liner.

9. A lock cylinder according to claim 7, wherein,

Limiting columns are respectively arranged on the upper surface of the second cam at the left part and the right part; the bottom surface of the lower cylinder of the body is provided with two symmetrical waist-shaped holes, and when the notch and the bulge are clamped together, the limit column also falls into the range of the waist-shaped holes.

10. A lock cylinder according to claim 9, wherein,

After the limiting column is contacted with the two ends of the waist-shaped hole, the included angle formed by two points where the central shaft of the limiting column is located and the connecting line of the central point of the bottom surface of the lower cylinder is 80-100 degrees.

11. A lock cylinder according to claim 9, wherein,

The tail seat is characterized by further comprising a shell, the shell is integrally cylindrical, a fourth through hole is formed in the upper bottom surface of the shell, a fifth through hole is formed in the lower bottom surface of the shell, and the diameter of the fourth through hole is equal to that of the upper cylinder of the tail seat body and smaller than that of the lower cylinder.

12. A lock cylinder according to claim 11, wherein,

The first groove is formed in the direction of the circumferential section of the inner container, two pairs of fixing holes are formed in the corresponding height position of the outer shell, and only one pair of fixing holes is inserted into the pin.

13. A lock cylinder according to claim 12, wherein,

Any pair of fixing holes are coaxial circumferential holes.

14. A lock cylinder according to claim 12, wherein,

The angle formed by connecting the two endpoints of the first groove with the circle center is between 180 degrees and 190 degrees.

15. A lock cylinder according to claim 12, wherein,

At least one locking hole is formed in the position, which is located on the same horizontal plane with the second cam, of the inner container, and locking steel balls are arranged in the locking hole.

16. A lock cylinder according to claim 15, wherein,

The number of the locking holes and the number of the locking steel balls are two respectively.

17. A lock cylinder according to claim 15, wherein,

And limiting grooves are formed in the outer sides of the upper part and the lower part of the second cam.

18. A lock cylinder according to claim 17, wherein,

The positioning hole is formed in the horizontal direction of the lower cylinder of the body of the tailstock, a spring is arranged in the positioning hole, and two positioning steel balls are respectively arranged at two ends of the spring.

19. A lock cylinder according to claim 17, wherein,

The upper bottom surface of the inner container is provided with a first through hole, and the lower bottom surface of the inner container is provided with a second through hole; the bottom of the inner container is provided with a guard plate, the guard plate is in a circular ring shape, a third through hole is formed in the middle of the guard plate, and the input end of the motor penetrates through the third through hole and is exposed at the bottom surface of the inner container.

20. A lock cylinder according to claim 17, wherein,

The motor input end is a port for receiving an electronic key command and a power supply.