Flexible electric linear lock

Abstract

The invention relates to the technical field of electric locks, in particular to a flexible electric linear lock which comprises a shell, a first lock cylinder, a second lock cylinder and a driving assembly which are elastically connected are arranged in the shell, and the driving assembly drives the first lock cylinder and the second lock cylinder to move. The second lock cylinder compresses the elastic piece between the second lock cylinder and the first lock cylinder so that damage to the driving motor or the first lock cylinder can be avoided, the cleaning pipeline is arranged, chippings on the surfaces of the balls can be cleaned regularly, and therefore abrasion of the balls is reduced, and the transmission precision of the balls is higher; lubricating oil can be smeared on the surfaces of the balls in the circulating pipeline, smearing is uniform, abrasion of the balls is further reduced, and precision is improved. A sequence adjusting assembly is further arranged, the sequence of the balls can be adjusted regularly, loads of the balls can be evenly distributed, force borne by all the balls is consistent as much as possible, and local stress concentration is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of electric locks, in particular to a flexible electric linear lock. Background Art

[0002] Electric linear lock is a device that locks and unlocks through electric drive, and is often used in locking systems that require linear movement. It controls the opening and closing of the lock tongue through the linear motion generated by the motor or solenoid valve. Electric linear locks are widely used in automatic doors, cabinets, access control systems, and equipment that requires remote control or automated operation.

[0003] Existing electric linear locks are all rigidly driven, that is, the motor drives the ball screw to rotate, realizing the linear motion of the nut. The nut is rigidly connected to the lock core, and then the lock core is extended and retracted. During the movement, the lock core moves accurately according to the position set by the program. However, when the depth position of the lock hole changes greatly or the center position of the lock hole does not correspond to the center position of the lock core and has a large deviation, the lock core will not move to the set position or the guide cone surface of the front section of the lock core will contact the cone surface of the lock hole hole mouth and cannot reach the set position, resulting in the position sensor being unable to capture the position signal, the drive motor being overloaded, and the entire equipment being shut down. In addition, during the use of the internal ball screw, the debris generated by the wear of the ball will lead to inaccurate precision. Summary of the invention

[0004] Based on this, it is necessary to provide a flexible electric linear lock to address the problem that the current lock core cannot reach the set position, causing the position sensor to be unable to capture the position signal, resulting in overload of the drive motor and inaccurate precision of the internal ball screw.

[0005] The above purpose is achieved through the following technical solutions:

[0006] A flexible electric linear lock, comprising:

[0007] A housing, wherein a first lock core and a second lock core capable of moving axially along the housing are disposed in the housing, the first lock core and the second lock core are coaxial and an elastic member is disposed between the first lock core and the second lock core;

[0008] A driving assembly, the driving assembly comprising a lead screw and a push block, the push block being fixedly arranged on the second lock core, the lead screw and the push block ball transmission, a circulation pipe being arranged on the push block to make the ball circulate and roll, the lead screw self-rotates to drive the push block to move axially, the push block pushes the second lock core and the first lock core to move along the axial direction thereof, the second lock core stops after reaching a preset position, and the elastic member pushes the first lock core to extend out of the housing;

[0009] A cleaning pipe, both ends of which are connected to the side walls of the circulation pipe, a switch component capable of controlling the connection between the cleaning pipe and the circulation pipe is provided between the cleaning pipe and the circulation pipe, the switch component can change the rolling direction of the ball, and when the cleaning pipe is working, the switch component is connected to the circulation pipe, and the ball in the circulation pipe passes through the cleaning pipe, and a cleaning component is provided in the cleaning pipe, and the cleaning component is used to clean the ball.

[0010] Furthermore, the cleaning assembly includes a first cleaning plate, a second cleaning plate and a third cleaning plate, all of which are arranged in a circle on the inner wall of the cleaning pipe, one end of the three is fixedly connected to the inner wall of the cleaning pipe, and the other end of the three is bent toward the axis of the cleaning pipe and is elastic, the length of the first cleaning plate is smaller than the length of the second cleaning plate, and the length of the second cleaning plate is smaller than the length of the third cleaning plate.

[0011] Further, the switch assembly includes a first shielding plate and a second shielding plate, the first shielding plate and the second shielding plate are connected at an acute angle, the first shielding plate is slidably inserted into the circulation pipe, the second shielding plate is slidably inserted at the connection between the circulation pipe and the cleaning pipe, the first shielding plate is provided with a first connecting hole, the second shielding plate is provided with a second connecting hole, and the first connecting hole and the second connecting hole are staggered;

[0012] When the first connecting hole is connected to the cleaning pipe and the circulation pipe, the second shielding plate blocks the circulation pipe, and the ball enters the cleaning pipe;

[0013] When the first shielding plate blocks the circulation pipe from being connected to the cleaning pipe, the second connecting hole opens the circulation pipe, and the balls enter the circulation pipe.

[0014] Furthermore, screws are rotatably provided on the first shielding plate and the second shielding plate, and the screws are spirally matched with the pushing block. The rotation of the screws drives the first shielding plate and the second shielding plate to move synchronously.

[0015] Furthermore, a lubrication component is provided in the circulation pipeline, and the lubrication component can apply lubricating oil to the surface of the balls in the circulation pipeline.

[0016] Furthermore, the lubrication assembly includes a lubrication sleeve and an oil inlet pipe. The lubrication sleeve is coaxially and fixedly arranged in the circulation pipe. The side walls of the lubrication sleeve are of different lengths. The inside of the side walls of the lubrication sleeve is hollow. The oil inlet pipe is connected to the side walls of the lubrication sleeve. A plurality of micropores are provided on the side walls of the lubrication sleeve. When the lubrication oil is input into the oil inlet pipe, the lubrication oil is smeared on the balls passing through the lubrication sleeve through the micropores.

[0017] Furthermore, a sequencing component is provided in the cleaning pipe, and the sequencing component includes a sequencing cylinder and a push-pull member. An outlet and an inlet are opened on the side wall of the sequencing cylinder. The sequencing cylinder divides the cleaning pipe into two sections, and the cleaning pipe is respectively connected to the outlet and the inlet. The push-pull member is provided in the sequencing cylinder, and the push-pull member pulls the balls into the sequencing cylinder from the inlet. The sequencing cylinder can adjust the sequence of the balls, and the push-pull member pushes the sequenced balls out of the outlet.

[0018] Furthermore, a pulsator is coaxially and rotatably arranged in the adjustment cylinder, a plurality of blades are arranged on the outer periphery of the pulsator, a space is provided between two adjacent blades, each space can accommodate a ball, wherein two adjacent spaces are connected to the inlet and the outlet respectively;

[0019] The pulsator is configured as follows:

[0020] After the first ball is pulled into the space by the push-pull member, the impeller rotates to drive the first ball away from the outlet. When the adjacent space is connected to the inlet, the second ball is pulled into the space by the push-pull member. When the impeller rotates in the opposite direction to drive the second ball to move to the outlet, the push-pull member pushes it out. When the impeller continues to rotate in the opposite direction to drive the first ball to move to the outlet, the push-pull member pushes it out.

[0021] Furthermore, the push-pull member includes multiple magnets, which are all arranged at the axis of the adjustment cylinder and fixed in position. Each magnet corresponds to each space. The magnetic poles of the magnet corresponding to the exit position of the adjustment cylinder are opposite to the magnetic poles of other magnets, and the magnetic field strength is greater than that of other magnets. The ball is magnetic.

[0022] Furthermore, the driving assembly also includes a driving motor, the lead screw is coaxially and fixedly connected to the rotating shaft of the driving motor, and the driving motor drives the lead screw to rotate.

[0023] The beneficial effects of the present invention are:

[0024] The present invention provides a first lock core and a second lock core that are elastically connected, so that when the first lock core cannot be fully inserted into the lock seat, the second lock core compresses the elastic member between the two to avoid damage to the drive motor or the first lock core, and a cleaning pipe is provided to regularly clean debris on the surface of the ball, thereby reducing the wear of the ball and making the ball transmission more accurate.

[0025] The present invention provides a lubricating component, so that lubricating oil can be applied to the surface of the ball in the circulation pipeline in a relatively uniform manner, thereby further reducing the wear of the ball and improving the precision.

[0026] The present invention can regularly adjust the order of the balls by providing a sequence adjustment component, and can evenly distribute the loads of the balls, so that the forces borne by all the balls are as consistent as possible, thereby reducing local stress concentration. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A schematic diagram of the structure of a flexible electric linear lock provided by an embodiment of the present invention;

[0028] Figure 2 for Figure 1 A front view of a flexible electric linear lock provided in an embodiment;

[0029] Figure 3 for Figure 2 A cross-sectional view of a flexible electric linear lock along AA provided in an embodiment;

[0030] Figure 4 A schematic diagram of the structure of a driving assembly of a flexible electric linear lock provided in one embodiment of the present invention;

[0031] Figure 5 for Figure 4 An enlarged view of the portion X of the flexible electric linear lock provided in one embodiment;

[0032] Figure 6 for Figure 4 A left side view of a flexible electric linear lock provided in an embodiment;

[0033] Figure 7 for Figure 6 An axonometric view of a flexible electric linear lock provided in an embodiment of the present invention, cut along BB;

[0034] Figure 8 for Figure 7 An enlarged view of the Y portion of the flexible electric linear lock provided in the first embodiment;

[0035] Fig. 9 An exploded view of a switch assembly of a flexible electric linear lock provided by an embodiment of the present invention;

[0036] Fig.10 A schematic structural diagram of a cleaning component of a flexible electric linear lock provided in one embodiment of the present invention;

[0037] Fig.11 A schematic diagram of the structure of a lubrication assembly of a flexible electric linear lock provided in one embodiment of the present invention;

[0038] Fig.12 for Fig.11 A front view of a lubrication assembly of a flexible electric linear lock provided in an embodiment;

[0039] Fig.13 for Fig.12 A cross-sectional view of a flexible electric linear lock along CC provided in one embodiment.

[0040] in:

[0041] 100, housing; 110, base; 120, drive motor; 130, lead screw; 140, push block; 150, circulation pipe; 160, sealing gasket; 170, first lock core; 180, second lock core; 190, elastic member; 191, connector;

[0042] 200, cleaning pipe; 210, first cleaning plate; 220, second cleaning plate; 230, third cleaning plate; 240, first connecting flange;

[0043] 300, switch assembly; 310, first shielding plate; 311, first connecting hole; 320, second shielding plate; 321, second connecting hole; 330, connecting plate; 331, connecting shaft; 332, protrusion; 340, connecting frame; 350, screw;

[0044] 400, lubrication sleeve; 410, arc plate; 411, micro hole; 420, oil inlet pipe; 430, second connecting flange;

[0045] 500, sequence adjustment cylinder; 501, inlet; 502, outlet; 510, push-pull member; 520, impeller; 521, blades. DETAILED DESCRIPTION

[0046] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0047] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in the present invention, unless otherwise specified, include direct and indirect connections (couplings). In the description of the present invention, it should be understood that the orientation or position relationship indicated by the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc. are based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0048] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0049] Refer to the following Figure 1-Figure 13 To describe a flexible electric linear lock provided by the present invention.

[0050] A flexible electric linear lock comprises a housing 100 and a lock seat (not shown in the figure), wherein a first lock core 170 and a second lock core 180 which can move axially along the housing 100 are arranged inside the housing 100, wherein the axes of the first lock core 170 and the second lock core 180 are on the same straight line, and an elastic member 190 is arranged between the two, wherein the elastic member 190 elastically connects the first lock core 170 and the second lock core 180, and a driving assembly is arranged inside the housing 100, wherein the driving assembly is used to push the second lock core 180 and the first lock core 170, and the pushing assembly comprises a pushing block 140 and a lead screw 130, wherein the pushing block 140 is fixedly connected to the second lock core 180, and the lead screw 130 is ball-driven with the pushing block 140, and specifically, a spiral groove is arranged on the pushing block 140, and the spiral groove is connected with the lead screw The spiral groove on the surface of 130 is adapted, and there are a number of balls between the lead screw 130 and the pushing block 140. The balls roll in the spiral groove to reduce the friction on the spiral groove, which can improve the transmission accuracy. Since the length of the spiral groove in the pushing block 140 is limited, when the balls roll to the end of the spiral groove, the pushing block 140 will not be able to move further. Therefore, a circulation pipe 150 is set on the pushing block 140. The circulation pipe 150 connects the end and the starting end of the spiral groove of the pushing block 140, so that the balls rolling to the end can re-enter the starting end through the circulation pipe 150, and then the balls can circulate and roll to realize the continuous movement of the pushing block 140. In order to facilitate the ball transmission between the pushing block 140 and the lead screw 130, sealing gaskets 160 are respectively installed at both ends of the spiral groove of the pushing block 140.

[0051] The pushing block 140 is fixedly connected to the second lock core 180. Under the action of the rotation of the lead screw 130, the pushing block 140 can push the second lock core 180 to move, and the second lock core 180 pushes the first lock core 170 through the elastic member 190. When the second lock core 180 moves to the preset position (the preset position means that the first lock core 170 is completely entered into the lock seat under normal circumstances, and the length that the elastic member 190 can be compressed is at least greater than the depth of the lock seat), the first lock core 170 extends out of the housing 100 and is inserted into the lock seat. At this time, the elastic member 190 is not in a fully compressed state, and the length of the compressible margin of the elastic member 190 is at least greater than the depth of the lock seat. The advantage of such a setting is that it can prevent the first lock core 170 from being forced into the lock seat when there is foreign matter in the lock seat or the first lock core 170 is offset from the lock seat.

[0052] It can be understood that generally, a sensor is provided inside the electric lock to detect whether the lock core has reached the specified position. When the sensor cannot detect that the lock core has reached the specified position, the lock core will be pushed continuously, thereby damaging the lock core or the motor driving the lead screw 130 to rotate. If an elastic member 190 and a second lock core 180 are provided, so that the sensor detects the position of the second lock core 180, under normal circumstances, the second lock core 180 pushes the elastic member 190, and the elastic member 190 pushes the first lock core 170 so that the first lock core 170 enters the lock seat. ; If there is a foreign object in the lock seat or the first lock core 170 is offset from the lock seat, the pushing block 140 still pushes the second lock core 180, and the second lock core 180 compresses the elastic member 190. Since the first lock core 170 is blocked, the second lock core 180 can only compress the elastic member 190. When the second lock core 180 can still move to the preset position, the sensor detects the second lock core 180, thereby stopping the rotation of the lead screw 130, causing the second lock core 180 to stop, thereby preventing the first lock core 170 from being forced into the lock seat and also preventing damage to the motor.

[0053] A cleaning pipe 200 is provided on the push block 140, and both ends of the cleaning pipe 200 are connected to the side wall of the circulation pipe 150. A switch assembly 300 capable of controlling the connection between the cleaning pipe 200 and the circulation pipe 150 is provided at the connection between the two. The switch assembly 300 can change the rolling direction of the ball, that is, when the ball flows through the connection between the cleaning pipe 200 and the circulation pipe 150, the switch assembly 300 can adjust whether the ball enters the cleaning pipe 200 or continues to enter the circulation pipe 150. After the flexible electric linear lock is used for a period of time, the surface of the ball will inevitably be worn. The debris on the surface of the ball will affect the accuracy of the ball transmission of the lead screw 130, and the debris will also aggravate the wear of the ball. Therefore, the cleaning pipe 200 is provided to clean the debris on the surface of the ball, reduce the debris on the surface of the ball to reduce the wear of the ball. The flexible electric linear lock is regularly maintained at set intervals. At this time, the switch assembly 300 is controlled to connect the cleaning pipe 200 and the circulation pipe 150, so that the balls in the circulation pipe 150 pass through the switch assembly 300 and enter the cleaning pipe 200. A cleaning assembly is provided in the cleaning pipe 200, which can clean the debris on the surface of the balls, thereby reducing the wear of the balls.

[0054] It should be noted that the elastic member 190 in the present invention is a butterfly spring, and the outer edge and inner hole of the butterfly spring are conical. When a load is applied, the spring is gradually flattened to generate a strong axial force. The butterfly spring can provide a large elastic force in a compact cavity, so it can also be used in locks. At the same time, a connector 191 is provided between the butterfly spring and the second lock core 180. The connector 191 fixes one end of the butterfly spring, and the other end of the butterfly spring is connected to the first lock core 170.

[0055] Specifically, the cleaning assembly of the present invention includes a first cleaning plate 210, a second cleaning plate 220 and a third cleaning plate 230. The first cleaning plate 210, the second cleaning plate 220 and the third cleaning plate 230 are all arranged in a circular array in the cleaning pipe 200. One end of the three cleaning plates is fixedly connected to the cleaning pipe 200, and the other ends of the three cleaning plates are elastic and bent toward the axis of the cleaning pipe 200. When the ball passes through the first cleaning plate 210, the second cleaning plate 220 and the third cleaning plate 230, the debris on the surface can be scraped by the bent end, thereby reducing the debris on the surface of the ball. At the same time, the length of the first cleaning plate 210 is less than the length of the second cleaning plate 220, and the length of the second cleaning plate 220 is less than the length of the third cleaning plate 230. When the ball passes through the bent end of the first cleaning plate 210, the ball does not contact the bent ends of the second cleaning plate 220 and the third cleaning plate 230, but contacts other parts of the second cleaning plate 220 and the third cleaning plate 230, so that the force on the ball is uneven. The ball will rotate when passing through the first cleaning plate 210. When the ball leaves the first cleaning plate 210, it only contacts the second cleaning plate 220 and the third cleaning plate 230. The force at this time is also uneven. The ball keeps rotating, and after passing through the bent end of the second cleaning plate 220, it is cleaned twice by the second cleaning plate 220, and then cleaned for the third time by the third cleaning plate 230. After multiple cleanings, the remaining debris on the surface of the ball is almost cleaned, and then enters the circulation pipe 150 again.

[0056] It should be noted that, in order to facilitate the first cleaning plate 210, the second cleaning plate 220 and the third cleaning plate 230 to be fixed in the cleaning pipe 200, one end of the first cleaning plate 210, the second cleaning plate 220 and the third cleaning plate 230 are fixedly set on the first connecting flange 240, and the first connecting flange 240 is fixedly connected to the cleaning pipe 200 by bolts so that the first cleaning plate 210, the second cleaning plate 220 and the third cleaning plate are fixed in the cleaning pipe 200.

[0057] In a further embodiment, the switch assembly 300 includes a first shielding plate 310 and a second shielding plate 320, the first shielding plate 310 and the second shielding plate 320 are connected at an acute angle, the first shielding plate 310 is slidably inserted in the circulation pipe 150, the first shielding plate 310 is provided with a first connecting hole 311, the size of the first connecting hole 311 is adapted to the circulation pipe 150, when the first connecting hole 311 is completely located in the circulation pipe 150, the ball can pass through the first connecting hole 311, and the ball is not blocked by the first connecting hole 311 in the circulation pipe 150. The second shielding plate 320 is slidably inserted at the connection between the circulation pipe 150 and the cleaning pipe 200, the second shielding plate 320 is provided with a second connecting hole 321, the second connecting hole 321 is staggered with the first connecting hole 311 on the first shielding plate 310, that is, the first connecting hole 311 and the second connecting hole 321 are not at the same height.

[0058] When the first baffle plate 310 and the second baffle plate 320 move synchronously so that the second connecting hole 321 connects the circulation pipe 150 and the cleaning pipe 200, the first connecting hole 311 on the first baffle plate 310 is located outside the circulation pipe 150, and the first baffle plate 310 blocks the circulation pipe 150. The balls in the circulation pipe 150 pass through the obstruction of the first baffle plate 310 and enter the cleaning pipe 200 through the second connecting hole 321 on the second baffle plate 320; similarly, when the first baffle plate 310 and the second baffle plate 320 move synchronously so that the first connecting hole 311 connects the circulation pipe 150, the second connecting hole 321 on the second baffle plate 320 is located outside the circulation pipe 150 and the cleaning pipe 200, and the second baffle plate 320 blocks the connection between the circulation pipe 150 and the cleaning pipe 200, and the balls no longer pass through the cleaning pipe 200.

[0059] It can be understood that the direction of the ball can be controlled by controlling the position of the first baffle plate 310 and the second baffle plate 320. That is, when the ball needs to be cleaned, the first baffle plate 310 and the second baffle plate 320 can be controlled to move synchronously so that the second connecting hole 321 on the second baffle plate 320 is connected to the cleaning pipe 200, and the ball enters the cleaning pipe 200 for cleaning. When cleaning is not required, the second baffle plate 320 can be controlled to block the connection between the cleaning pipe 200 and the circulation pipe 150.

[0060] Specifically, a screw 350 is rotatably set on the first baffle plate 310 and the second baffle plate 320, and the screw 350 is spirally connected to the pushing block 140. The screw 350 is rotated when the first baffle plate 310 and the second baffle plate 320 need to move. The screw 350 rotates around itself and moves axially to drive the first baffle plate 310 and the second baffle plate 320 to move. To facilitate connection, a connecting plate 330 is fixedly provided on the first baffle plate 310 and the second baffle plate 320, and a connecting shaft 331 is provided on the connecting plate 330. The outer periphery of the connecting shaft 331 has a protrusion 332, and a connecting groove is provided on the end of the screw 350 close to the connecting shaft 331. The protrusion 332 of the connecting shaft 331 is in the connecting groove. The connecting groove and the protrusion 332 can limit the relative axial movement of the connecting shaft 331 and the screw 350. A connecting frame 340 is fixedly provided on the pushing block 140. The screw 350 is specifically spirally connected to the connecting frame 340 on the pushing block 140. When the screw 350 is rotated, the first baffle plate 310 and the second baffle plate 320 can be driven to move.

[0061] It should be noted that the structure for realizing the movement of the first baffle plate 310 and the second baffle plate 320 is not limited to the above structure, but can also be a telescopic cylinder, one end of which is fixedly connected to the connecting plate 330, and the other end of which is fixedly set on the connecting frame 340. When the telescopic cylinder is extended or retracted, it can drive the first baffle plate 310 and the second baffle plate 320 to move.

[0062] In a further embodiment, a lubrication component is further provided in the circulation pipe 150, and the lubrication component can apply lubricating oil on the surface of the ball, thereby reducing the wear of the ball.

[0063] Specifically, the lubrication assembly includes a lubrication sleeve 400 and an oil inlet pipe 420. The lubrication sleeve 400 is coaxial and fixedly arranged in the circulation pipe 150. The side walls of the lubrication sleeve 400 have different lengths, that is, the lubrication sleeve 400 is composed of a plurality of arc plates 410. There are three arc plates 410 in this embodiment, and the lengths of the three arc plates 410 are different, so that the passing balls are subjected to uneven force and rotate. The interiors of the three arc plates 410 are hollow, and the oil inlet pipe 420 is connected to the interiors of the arc plates 410. The oil inlet pipe 420 transports lubricating oil to the interiors of the arc plates 410. A plurality of micropores 411 are provided on one surface of the three arc plates 410 close to the balls. The lubricating oil inside the arc plates 410 seeps out through the micropores 411 and is coated on the passing balls. When the balls pass through the three arc plates 410, they rotate due to uneven force, thereby greatly improving the coverage rate of the lubricating oil on the surface of the balls.

[0064] It should be noted that, in order to facilitate the connection of the oil inlet pipe 420 and the fixation of the three arc plates 410 in the circulation pipe 150, a second connecting flange 430 is bolted to the circulation pipe 150, the interior of the second connecting flange 430 is hollow, the three arc plates 410 are fixed on one side of the second connecting flange 430 and the interior of the second connecting flange 430 is connected to the interior of the three arc plates 410, and the oil inlet pipe 420 is connected to the interior of the second connecting flange 430. The lubricating oil transported by the oil inlet pipe 420 first passes through the interior of the second connecting flange 430, then enters the interior of the arc plate 410, and finally seeps out from the micropores 411 on the arc plate 410 onto the surface of the ball.

[0065] In a further embodiment, a sequencing component is provided on the cleaning pipe 200, which can adjust the sequence of the balls in the cleaning pipe 200, thereby changing the arrangement order of the balls. The setting of this structure can effectively avoid severe wear of certain balls and uneven force on the balls (the uneven force refers to the force on the balls in the two spiral grooves rather than the uneven force on the balls in the cleaning pipe 200 and the circulation pipe 150 as mentioned above).

[0066] It is understandable that in the ball transmission, the balls roll along the spiral groove and bear the load. Some balls may be subjected to greater pressure due to manufacturing errors, assembly or uneven load distribution, resulting in increased wear. By regularly adjusting the order of the balls, the load of the balls can be evenly distributed, so that the force borne by all the balls is as consistent as possible, reducing local stress concentration. If the balls roll in the same arrangement order for a long time without adjusting the order, some balls with greater wear will affect the adjacent balls, causing the adjacent balls to wear more over time. By regularly adjusting the order of the balls, the above situation can be effectively alleviated and the service life of the screw 130 and the push block 140 can be extended.

[0067] Specifically, the sequencing component in the present invention includes a sequencing cylinder 500 and a push-pull member 510. An inlet 501 and an outlet 502 are provided on the side wall of the sequencing cylinder 500. The sequencing cylinder 500 is arranged on the cleaning pipe 200. The sequencing cylinder 500 divides the cleaning pipe 200 into two sections. The inlet 501 and the outlet 502 of the sequencing cylinder 500 connect the two sections of the cleaning pipe 200. The push-pull member 510 is arranged in the sequencing cylinder 500. The push-pull member 510 is used to pull the ball from the inlet 501 of the sequencing cylinder 500 into the sequencing cylinder 500 or push the ball in the sequencing cylinder 500 out of the sequencing cylinder 500 from the outlet 502.

[0068] An impeller 520 is coaxially and rotatably connected inside the adjustment cylinder 500, and a plurality of blades 521 are arranged on the periphery of the impeller 520, and the plurality of blades 521 are evenly distributed, and the ends of the plurality of blades 521 are in sliding contact with the inside of the adjustment cylinder 500, and the space between two adjacent blades 521 can accommodate a ball, that is, the ball can enter the space between two adjacent blades 521, and when the impeller 520 rotates, the plurality of spaces can revolve around the rotation center of the impeller 520, thereby driving the balls in the spaces to revolve around the rotation center of the impeller 520, and the inlet 501 and the outlet 502 on the side wall of the adjustment cylinder 500 are close to each other, and there are always two adjacent spaces in the plurality of spaces connected to the inlet 501 and the outlet 502.

[0069] When the push-pull member 510 pulls the first ball from the cleaning pipe 200 into the adjustment cylinder 500, the ball enters the space connected to the inlet 501, and the space is named the first space. The impeller 520 first rotates a preset angle (the preset angle is 360° / N, N is the number of spaces, and N is greater than or equal to 3) in the direction away from the outlet 502 to connect the adjacent space (the space is called the second space). The push-pull member 510 pulls the second ball into the second space, and the impeller 520 rotates in the reverse direction by twice the preset angle. When the preset angle is rotated in the reverse direction, the second space is connected to the outlet. At this time, the push-pull member 510 pushes out the second ball in the second space. When the impeller 520 continues to rotate in the opposite direction at a preset angle, the first space is connected to the outlet 502 of the adjustment cylinder 500, and the push-pull member 510 pushes out the first ball, thereby adjusting the order of the first ball and the second ball, and so on. The order of the third, fourth, and nth balls is changed, and the number of balls is required to be an odd number to realize the change of the order of the regulating balls. If it is an even number, multiple adjustments will cause the order of the even number of balls to be restored to the original order.

[0070] Specifically, the push-pull member 510 in this embodiment includes a plurality of magnets, which are fixedly arranged at the axis of the adjustment cylinder 500, and the side wall of the impeller 520 is in sliding contact with the plurality of magnets, each magnet corresponds to each space, and the magnetic pole of the magnet corresponding to the outlet 502 of the adjustment cylinder 500 is opposite to the magnetic poles of other magnets, and the magnetic field strength of the magnet is greater than that of other magnets. At the same time, the ball in this embodiment is magnetic. When the space is connected to the inlet 501 of the adjustment cylinder 500, the ball is adsorbed by the magnet and passes through the inlet 501 into the space. At this time, the ball entering the space is adsorbed by the magnet and cannot rotate. As the impeller 520 rotates, the space where the ball is located is connected to the outlet 502. At the same time, the magnetic pole of the magnet corresponding to the outlet 502 is opposite and the magnetic field strength is relatively large, so that the originally adsorbed ball is thrust and passes through the outlet 502 into another section of the cleaning pipe 200.

[0071] Specifically, the driving assembly in this embodiment also includes a driving motor 120, which is used to drive the screw 130 to rotate. To facilitate the connection of the driving motor 120, a base 110 is connected to the end of the housing 100 away from the first lock core 170. The driving motor 120 is fixedly arranged in the base 110, and the screw 130 is coaxially and fixedly connected to the rotating shaft of the driving motor 120. The rotation of the driving motor 120 drives the screw 130 to rotate and then drives the pushing block 140.

[0072] The specific working process of a flexible electric linear lock provided by the present invention is described in combination with the above embodiments:

[0073] Normal operation:

[0074] Locking: Start the driving motor 120, the driving motor 120 drives the lead screw 130 to rotate, the lead screw 130 drives the push block 140 to move along the axial direction of the housing 100, the push block 140 drives the second lock core 180 to move, the second lock core 180 moves to a preset position and then stops, the second lock core 180 compresses the elastic member 190, the elastic member 190 drives the first lock core 170 to move, so that the first lock core 170 extends out of the housing 100 and then completely enters the lock seat (not shown in the figure), thereby completing the locking function, and at this time, the length of the elastic member 190 that can still be compressed is at least greater than the depth of the lock seat;

[0075] Unlocking: the driving motor 120 rotates in the reverse direction, the driving motor 120 drives the lead screw 130 to rotate in the reverse direction, the lead screw 130 drives the push block 140 to move in the reverse direction along the axis of the housing 100, the push block 140 drives the second lock core 180 to move in the reverse direction, the second lock core 180 pulls the elastic member 190, the elastic member 190 pulls the first lock core 170 to reset and thus disengage from the lock seat to complete the unlocking function.

[0076] When an exception occurs:

[0077] If foreign matter appears inside the lock seat or the first lock core 170 cannot correspond to the lock seat, the pushing block 140 pushes the second lock core 180 to continue moving, and the second lock core 180 compresses the elastic member 190. The elastic member 190 cannot push the first lock core 170, but because the length to which the elastic member 190 can be compressed is at least greater than the depth of the lock seat, even if the first lock core 170 cannot be fully inserted into the lock seat at this time, the drive motor 120 stops after the second lock core 180 reaches the preset position, thereby avoiding the situation where the drive motor 120 keeps working when the first lock core 170 is not fully inserted into the lock seat, thereby causing damage to the drive motor 120 or damage to the first lock core 170.

[0078] lubricating:

[0079] After being used for a period of time, lubricating oil is input into the oil inlet pipe 420, and the lubricating oil enters the interior of the arc plate 410 after passing through the second connecting flange 430, and finally seeps out from the micropores 411 of the arc plate 410. Since the lengths of the multiple arc plates 410 are different, the ball rotates when passing through the arc plate 410, so that the lubricating oil can be evenly applied to the surface of the ball.

[0080] clean:

[0081] After cleaning at a set interval (the interval can be determined according to the frequency of use and is not specifically limited here), rotate the screw 350 so that the screw 350 drives the first baffle plate 310 and the second baffle plate 320 to move, and the first connecting hole 311 on the first baffle plate 310 slides to the outside of the circulation pipe 150, and the first baffle plate 310 blocks the circulation pipe 150. At this time, the second connecting hole 321 on the second baffle plate 320 connects the connection between the circulation pipe 150 and the cleaning pipe 200, and the balls in the circulation pipe 150 enter the cleaning pipe 200 through the second connecting hole 321 on the second baffle plate 320. At the same time, the impeller 520 is driven to rotate to change the order of the balls. After the order is changed, the balls pass through the first cleaning plate 210, the second cleaning plate 220 and the third cleaning plate 230 in turn. Due to the different lengths of the three, the balls are subjected to uneven force when passing through the three cleaning plates, resulting in rotation, which makes the surface of the balls cleaned more thoroughly.

[0082] After cleaning, rotate the screw 350 in the opposite direction to reset the first baffle plate 310 and the second baffle plate 320. The first connecting hole 311 of the first baffle plate 310 is connected to the circulation pipe 150, and the second connecting hole 321 of the second baffle plate 320 slides to the outside, so that the second baffle plate 320 blocks the connection between the cleaning pipe 200 and the circulation pipe 150 to ensure that the ball rolls in the circulation pipe 150.

[0083] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0084] The above-described embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. A flexible electric linear lock, characterized in that: include: A housing, wherein a first lock core and a second lock core capable of moving axially along the housing are disposed in the housing, the first lock core and the second lock core are coaxial and an elastic member is disposed between the first lock core and the second lock core; A driving assembly, the driving assembly comprising a lead screw and a push block, the push block being fixedly arranged on the second lock core, the lead screw and the push block ball transmission, a circulation pipe being arranged on the push block to make the ball circulate and roll, the lead screw self-rotates to drive the push block to move axially, the push block pushes the second lock core and the first lock core to move along the axial direction thereof, the second lock core stops after reaching a preset position, and the elastic member pushes the first lock core to extend out of the housing; A cleaning pipe, both ends of which are connected to the side walls of the circulation pipe, a switch component capable of controlling the connection between the cleaning pipe and the circulation pipe is provided between the cleaning pipe and the circulation pipe, the switch component can change the rolling direction of the ball, and when the cleaning pipe is working, the switch component is connected to the circulation pipe, and the ball in the circulation pipe passes through the cleaning pipe, and a cleaning component is provided in the cleaning pipe, and the cleaning component is used to clean the ball.

2. The flexible electric linear lock according to claim 1, characterized in that: The cleaning assembly includes a first cleaning plate, a second cleaning plate and a third cleaning plate, all of which are arranged in a circle on the inner wall of the cleaning pipe, one end of the three is fixedly connected to the inner wall of the cleaning pipe, and the other ends of the three are bent toward the axis of the cleaning pipe and are elastic, the length of the first cleaning plate is smaller than the length of the second cleaning plate, and the length of the second cleaning plate is smaller than the length of the third cleaning plate.

3. The flexible electric linear lock according to claim 1, characterized in that: The switch assembly includes a first shielding plate and a second shielding plate, the first shielding plate and the second shielding plate are connected at an acute angle, the first shielding plate is slidably inserted into the circulation pipe, and the second shielding plate is slidably inserted at the connection between the circulation pipe and the cleaning pipe, a first connecting hole is formed on the first shielding plate, and a second connecting hole is formed on the second shielding plate, and the first connecting hole and the second connecting hole are staggered; When the first connecting hole is connected to the cleaning pipe and the circulation pipe, the second shielding plate blocks the circulation pipe, and the ball enters the cleaning pipe; When the first shielding plate blocks the circulation pipe from being connected to the cleaning pipe, the second connecting hole opens the circulation pipe, and the balls enter the circulation pipe.

4. The flexible electric linear lock according to claim 3, characterized in that: The first shielding plate and the second shielding plate are rotatably provided with screws, the screws are spirally matched with the pushing block, and the rotation of the screws drives the first shielding plate and the second shielding plate to move synchronously.

5. The flexible electric linear lock according to claim 1, characterized in that: A lubrication component is arranged in the circulation pipeline, and the lubrication component can apply lubricating oil to the surface of the balls in the circulation pipeline.

6. The flexible electric linear lock according to claim 5, characterized in that: The lubrication assembly includes a lubrication sleeve and an oil inlet pipe. The lubrication sleeve is coaxially and fixedly arranged in the circulation pipeline. The side walls of the lubrication sleeve have different lengths. The inside of the side walls of the lubrication sleeve is hollow. The oil inlet pipe is connected to the side walls of the lubrication sleeve. A plurality of micropores are opened on the side walls of the lubrication sleeve. When the lubrication oil is input into the oil inlet pipe, the lubrication oil is smeared on the balls passing through the lubrication sleeve through the micropores.

7. The flexible electric linear lock according to claim 1, characterized in that: A sequencing component is arranged in the cleaning pipe, and the sequencing component includes a sequencing cylinder and a push-pull member. An outlet and an inlet are opened on the side wall of the sequencing cylinder. The sequencing cylinder divides the cleaning pipe into two sections, and the cleaning pipe is respectively connected with the outlet and the inlet. The push-pull member is arranged in the sequencing cylinder, and the push-pull member pulls the balls into the sequencing cylinder from the inlet. The sequencing cylinder can adjust the sequence of the balls, and the push-pull member pushes the sequenced balls out from the outlet.

8. The flexible electric linear lock according to claim 7, characterized in that: A pulsator is coaxially and rotatably arranged in the adjusting cylinder, a plurality of blades are arranged on the outer periphery of the pulsator, a space is provided between two adjacent blades, each space can accommodate a ball, wherein two adjacent spaces are connected to an inlet and an outlet respectively; The pulsator is configured as follows: After the first ball is pulled into the space by the push-pull member, the impeller rotates to drive the first ball away from the outlet. When the adjacent space is connected to the inlet, the second ball is pulled into the space by the push-pull member. When the impeller rotates in the opposite direction to drive the second ball to move to the outlet, the push-pull member pushes it out. When the impeller continues to rotate in the opposite direction to drive the first ball to move to the outlet, the push-pull member pushes it out.

9. The flexible electric linear lock according to claim 8, characterized in that: The push-pull member includes multiple magnets, which are all arranged at the axis of the adjustment cylinder and are fixed in position. Each magnet corresponds to each space. The magnetic poles of the magnet corresponding to the exit position of the adjustment cylinder are opposite to the magnetic poles of other magnets, and the magnetic field strength is greater than that of other magnets. The ball is magnetic.

10. The flexible electric linear lock according to claim 1, characterized in that: The driving assembly also includes a driving motor. The lead screw is coaxially and fixedly connected to a rotating shaft of the driving motor. The driving motor drives the lead screw to rotate.

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