Cathode lock

Abstract

The present invention relates to a cathode lock, which includes a lock body, a lock catch and a control component. Brake shaft components that cooperate with the lock catch are provided on both sides of the lock catch. The brake shaft components are configured to block the rotation direction of the lock catch. The brake shaft components can generate a tendency of moving closer to each other under the action of the lock catch and can reset after the lock catch resets. An adjustment component is arranged between the two brake shaft components. The adjustment component has a locked state and an unlocked state. When the adjustment component is in the locked state, the two brake shaft components cannot move closer to each other. When the adjustment component is in the unlocked state, the two brake shaft components can move closer to each other. The adjustment component is connected to the control component. The control component can change the state of the adjustment component under its own acting force, and the state of the adjustment component can reset after the acting force disappears to drive the control component to reset. The present invention improves the service life of the lock.

Description

Technical Field

[0001] The present invention belongs to the technical field of locks, and particularly relates to a cathode lock. Background Art

[0002] The cathode lock is mainly used to be installed on a door frame, and the door is locked by a lock tongue on the door body extending into a notch of the cathode lock. The cathode lock includes a lock body, a lock catch, a brake shaft, a control component, etc. The lock catch is sleeved on a main shaft and can rotate around the main shaft. The brake shaft and the lock catch cooperate so that the lock catch can rotate around the main shaft or the lock catch cannot rotate around the main shaft, and the control component is used to drive the movement of the brake shaft. Specifically, the cathode lock is divided into two situations: unlocking when powered on and locking when powered off, and locking when powered on and unlocking when powered off according to whether the lock catch can rotate around the main shaft after being powered on. Among them, unlocking when powered on and locking when powered off means that the lock catch can rotate around the main shaft after being powered on, and the lock catch cannot rotate around the main shaft after being powered off. Taking the situation where the lock catch cannot rotate around the main shaft after being powered off as an example, as Figure 1 shown, at this time, the brake shaft 02 blocks the rotation direction of the lock catch 01, and the lock catch 01 cannot rotate around the main shaft 03. The lock tongue is stuck in the notch at the lock catch 01, and the door body is in a locked state and cannot be opened. When powered on, the control component generates a magnetic field and drives the brake shaft 02 to move leftward under the action of the magnetic field, as Figure 2 shown. When the lower end of the lock catch 01 moves to the groove of the brake shaft 02, since there is no block in the movement direction of the lock catch 01, the lock catch 01 can rotate around the main shaft 03. When the door body is pushed, the lock tongue in the notch at the lock catch 01 pushes the lock catch to rotate, so that the lock tongue disengages from the notch, and at this time the door body can be opened.

[0003] However, as Figure 1 shown, when the door body is in a locked state, the lock catch only contacts the brake shaft on one side. Therefore, the lock catch is prone to twist and deform due to uneven force, which will affect the service life of the lock; secondly, since the lock catch only contacts the brake shaft on one side, the tensile force borne by the lock catch is limited, which is not conducive to use in places where a large force is applied, and will restrict the use place of the lock; finally, since the lock catch only contacts the brake shaft on one side, the lock catch is difficult to withstand a large dynamic impact test, affecting the use performance of the lock. Summary of the Invention

[0004] In order to solve all or part of the above problems, the purpose of the present invention is to provide a cathode lock. By arranging brake shaft assemblies on both sides of the lock catch, both sides of the lock catch can contact the brake shaft assemblies, solving the problem of twist and deformation of the lock catch due to uneven force and improving the service life of the lock.

[0005] According to one aspect of the present invention, a cathode lock is provided, which includes a lock body, a lock catch and a control component. Brake shaft assemblies that cooperate with the lock catch are provided on both sides of the lock catch. The brake shaft assemblies are configured to block the rotation direction of the lock catch during unlocking. The two brake shaft assemblies can generate a tendency to move closer to each other under the action of the lock catch and can be reset after the lock catch is reset.

[0006] An adjustment component is provided between the two brake shaft assemblies. The adjustment component has a locked state and an unlocked state. When the adjustment component is in the locked state, the two brake shaft assemblies cannot move closer to each other. When the adjustment component is in the unlocked state, the two brake shaft assemblies can move closer to each other.

[0007] The adjustment component is connected to the control component. The control component can change the state of the adjustment component under its own acting force, and the state of the adjustment component can be restored after the acting force of the control component disappears to drive the control component to reset.

[0008] Further, the adjustment component includes a connecting rod and a locking and unlocking component. The locking and unlocking component is arranged between the two brake shaft assemblies. The locking and unlocking component has a locked state corresponding to the locked state of the adjustment component and an unlocked state corresponding to the unlocked state of the adjustment component.

[0009] The locking and unlocking component cooperates with the connecting rod, and the connecting rod cooperates with the control component. The control component can push the connecting rod to move under its own acting force. When the connecting rod moves to the limit position, the state of the locking and unlocking component changes.

[0010] The connecting rod is connected with a connecting rod reset structure. The connecting rod reset structure is used to drive the connecting rod to reset after the acting force of the control component disappears. The reset of the connecting rod drives the state of the locking and unlocking component to be restored and the control component to reset.

[0011] Further, a guiding component and a limiting guiding component are connected to the lock body. A guiding groove and a limiting guiding groove are formed on the connecting rod. The connecting direction of the guiding component and the limiting guiding component, the extending direction of the guiding groove, and the extending direction of the limiting guiding groove all coincide with the moving direction of the connecting rod. The guiding component is located in the guiding groove, and the limiting guiding component is located in the limiting guiding groove. When the connecting rod moves to the limit position, one end of the limiting guiding groove close to the control component contacts the limiting guiding component.

[0012] Further, the connecting rod reset structure includes a connecting rod reset spring. One end of the connecting rod reset spring is connected to the connecting rod, and the other end of the connecting rod reset spring is connected to the lock body.

[0013] Further, a slider is disposed between the two brake shaft assemblies. The slider includes a lapping portion and an inclined surface portion. The lapping portion cooperates with the two brake shaft assemblies. The inclined surface portion inclines in a direction approaching the corresponding brake shaft assembly from one end away from the opening and closing lock assembly to one end close to the opening and closing lock assembly. One end of the inclined surface portion close to the opening and closing lock assembly is connected to the lapping portion;

[0014] The middle of the lapping portion is connected to the opening and closing lock assembly. When the opening and closing lock assembly is in a non-locked state, the slider can move in a direction approaching the opening and closing lock assembly, so that the two brake shaft assemblies approach each other along the inclined surface portion. When the opening and closing lock assembly is in a locked state, the slider cannot move in a direction approaching the opening and closing lock assembly;

[0015] A slider return spring is connected between the slider and the opening and closing lock assembly. The slider return spring is configured to prevent the slider from moving in a direction approaching the opening and closing lock assembly.

[0016] Further, the opening and closing lock assembly includes a movable bolt. The movable bolt includes a first cylindrical section and a second cylindrical section. The diameter of the second cylindrical section is greater than that of the first cylindrical section. A part of the second cylindrical section away from the first cylindrical section is connected to the slider;

[0017] A sleeve is sleeved on a part of the movable bolt away from the slider. The sleeve includes a first circular hole section that cooperates with the first cylindrical section and a second circular hole section that cooperates with the second cylindrical section. A part of the sleeve away from the slider is connected to the lock body. A limiting retaining ring is provided on a part of the sleeve close to the slider;

[0018] An adjusting unit is sleeved on the sleeve between the lock body and the limiting retaining ring. The adjusting unit cooperates with the connecting rod. The state of the opening and closing lock assembly can be changed through the connecting rod and the adjusting unit. When the opening and closing lock assembly is in a non-locked state, the movable bolt can move in a direction approaching the first circular hole section to drive the slider to move in a direction approaching the opening and closing lock assembly. When the opening and closing lock assembly is in a locked state, the movable bolt cannot move in a direction approaching the first circular hole section;

[0019] The slider return spring is sleeved on the movable bolt. One end of the slider return spring is connected to the movable bolt, and the other end of the slider return spring is connected to the sleeve.

[0020] Further, the adjusting unit includes a brake ring and spherical balls. The brake ring is sleeved outside the sleeve between the lock body and the limit retaining ring. A plurality of uniformly distributed ball grooves are formed in the circumferential direction of the second circular hole section. Each ball groove accommodates a spherical ball. Slot holes corresponding to the number of the spherical balls are formed in the inner ring wall of the brake ring, and the slot holes extend along the axial direction of the brake ring;

[0021] After the slider and the moving bolt are reset, the second cylindrical section and the first circular hole section are respectively located on both sides of the spherical ball. When the inner ring wall of the brake ring contacts the spherical ball, the spherical ball prevents the second cylindrical section from moving towards the direction close to the first circular hole section, and the opening and closing lock assembly is in a locked state. When the slot hole of the brake ring contacts the spherical ball, the second cylindrical section can move towards the direction close to the first circular hole section, and the opening and closing lock assembly is in an unlocked state;

[0022] The brake ring cooperates with the connecting rod.

[0023] Further, one side of the brake ring is connected with an adjusting part, and an adjusting hole cooperating with the adjusting part is formed in the connecting rod;

[0024] A support plate is sleeved and connected to a part of the sleeve far away from the slider. The support plate is connected with the lock body, and a state adjusting screw is connected to the support plate. The state adjusting screw abuts against the brake ring, and the state adjusting screw is used for adjusting the initial state of the opening and closing lock assembly.

[0025] Further, each brake shaft assembly includes a brake shaft and a brake shaft sleeve. The brake shaft is arranged in the brake shaft sleeve. Each brake shaft sleeve is fixedly connected with the lock body, and a brake shaft return spring is connected between each brake shaft sleeve and the brake shaft inside it;

[0026] The lock catch includes a lock catch body. Lock catch matching parts are respectively connected to both ends of the lock catch body along the axial direction of the main shaft. Lock catch matching inclined surfaces are arranged on the lock catch matching parts. One end of each brake shaft close to the lock catch matching part is a matching inclined surface, and the matching inclined surface cooperates with the corresponding lock catch matching inclined surface;

[0027] The brake shaft return spring is configured to make the matching inclined surface of the brake shaft abut against the lock catch matching inclined surface of the lock catch and prevent the brake shaft from moving away from the corresponding lock catch matching inclined surface.

[0028] Further, the control component includes a solenoid and a moving mandrel disposed within the solenoid. The solenoid is configured to generate a magnetic field, and the moving mandrel is configured to move under the action of the magnetic field. A limiting stop is provided within the solenoid between the lock body and the moving mandrel. The limiting stop is connected to the lock body. The movement of the moving mandrel drives the movement of the connecting rod, thereby changing the state of the unlocking and locking assembly. The reset of the connecting rod drives the reset of the moving mandrel.

[0029] A main shaft is connected within the lock body. The lock catch is sleeved on the main shaft, and a lock catch return torsion spring is also sleeved on the main shaft.

[0030] As can be seen from the above technical solutions, a cathode lock provided by the present invention has the following beneficial effects:

[0031] By providing brake shaft assemblies on both sides of the lock catch, the present invention enables both sides of the lock catch to come into contact with the brake shaft assemblies, solving the problem of distortion and deformation that occurs in the prior art due to the contact between one side of the lock catch and the brake shaft, and improving the service life of the lock. Secondly, since both sides of the lock catch are in contact with the brake shaft assemblies, the lock catch can withstand a large force, enabling the lock to be used in places that require a large force to be borne. Description of the Drawings

[0032] Figure 1 Schematic diagram of a lock in the locked state in the prior art;

[0033] Figure 2 Schematic diagram of a lock in the opened state in the prior art;

[0034] Figure 3 Front view of a cathode lock according to an embodiment of the present invention;

[0035] Figure 4 Front view of the lock catch and brake shaft assembly part according to an embodiment of the present invention;

[0036] Figure 5 Front view of the lock catch and unlocking and locking assembly part according to an embodiment of the present invention;

[0037] Figure 6 Front view of the lock catch and unlocking and locking assembly part when the lock is opened;

[0038] Figure 7 Exploded view of the unlocking and locking assembly according to an embodiment of the present invention;

[0039] Figure 8 Cross-sectional view of the unlocking and locking assembly according to an embodiment of the present invention;

[0040] Figure 9 Schematic diagram of the brake ring according to an embodiment of the present invention;

[0041] Figure 10 Schematic diagram of the connecting rod according to an embodiment of the present invention;

[0042] In the figure, the reference numerals are: latch 01, latch return torsion spring 011, latch mating portion 012, latch mating inclined surface 0121, brake shaft assembly 2, brake shaft 02, mating inclined surface 021, brake shaft sleeve 022, main shaft 03, lock body 04, connecting rod 05, connecting rod return spring 051, limit guiding groove 052, adjustment hole 053, unlocking and locking assembly 6, support plate 061, brake ring 062, slot hole 0621, adjustment portion 0622, slider return spring 063, moving bolt 064, first cylindrical section 0641, second cylindrical section 0642, sleeve 065, first round hole section 0651, second round hole section 0652, spherical ball 066, slider 07, overlapping portion 071, inclined surface portion 072, state adjustment screw 08. Detailed implementation manners

[0043] In order to better understand the purpose, structure and function of the present invention, the following further describes a cathode lock of the present invention in detail with reference to the accompanying drawings.

[0044] As Figures 3 - 4 shown, it shows a cathode lock according to an embodiment of the present invention, including a lock body 04, a latch 01 and a control assembly. The latch 01 and the control assembly are both arranged in the lock body 04. Brake shaft assemblies 2 that cooperate with the latch 01 are provided on both sides of the latch 01. The brake shaft assemblies 2 are configured to block the rotation direction of the latch 01 during unlocking. The two brake shaft assemblies 2 can have a tendency to move closer to each other under the action of the latch 01 and can be reset after the latch 01 is reset; an adjustment assembly is arranged between the two brake shaft assemblies 2. The adjustment assembly has a locked state and an unlocked state. When the adjustment assembly is in the locked state, the two brake shaft assemblies 2 cannot move closer to each other. When the adjustment assembly is in the unlocked state, the two brake shaft assemblies 2 can move closer to each other; the adjustment assembly is connected to the control assembly. The control assembly can change the state of the adjustment assembly under its own acting force, and the state of the adjustment assembly can be restored after the acting force of the control assembly disappears to drive the control assembly to reset.

[0045] In this embodiment, the latch 01 cooperates with the brake shaft assembly 2. When the latch 01 is subjected to the acting force of the lock tongue, it will have a tendency to rotate. Along the rotation direction of the latch during unlocking, the brake shaft assembly is in front of the movement direction, and the latch is behind the movement direction. Therefore, when the latch 01 has a tendency to rotate under the acting force of the lock tongue, the latch 01 will generate a corresponding acting force on the brake shaft assembly 2, and the brake shaft assembly 2 has a tendency to move closer to each other under this acting force; Whether the brake shaft assemblies 2 can move closer to each other also depends on the state of the adjustment assembly.

[0046] The adjusting component is located between two brake shaft components 2. The adjusting component has two states: a locked state and an unlocked state. When the adjusting component is in the locked state, the adjusting component prevents the two brake shaft components 2 from moving closer to each other, and the requirement for the two brake shaft components 2 to move closer to each other cannot be satisfied, and the two brake shaft components 2 cannot move closer to each other. Since the brake shaft component 2 is configured to block the rotation direction of the lock catch 01 when unlocking, as Figure 4 shown, the brake shaft component 2 blocks the rotation direction of the lock catch 01 when unlocking. Therefore, the two brake shaft components 2 cannot make way for the rotation of the lock catch 01 by moving closer to each other, the lock catch 01 cannot rotate, and the lock tongue cannot disengage from the groove. At this time, the lock is in the locked state. When the adjusting component is in the unlocked state, the adjusting component cannot block the tendency of the two brake shaft components 2 to move closer to each other, the requirement for the two brake shaft components 2 to move closer to each other is satisfied, the two brake shaft components 2 can move closer to each other, the lock catch 01 can rotate, and the lock tongue can disengage from the corresponding groove. At this time, the lock is in the open state.

[0047] After the acting force of the lock tongue on the lock catch 01 disappears, the lock catch 01 resets accordingly. When the lock catch 01 resets, the brake shaft component 2 no longer receives the acting force of the lock catch 01, and the brake shaft component 2 resets accordingly. The state of the adjusting component does not change when the brake shaft component 2 resets. The change of the state of the adjusting component is realized by the control component. Specifically:

[0048] Set the initial state of the adjusting component to the unlocked state. Then, when it is necessary to adjust the adjusting component to the locked state, an acting force is applied through the control component, and the adjusting component is adjusted from the unlocked state to the locked state under the acting force of the control component. After the acting force of the control component disappears, the adjusting component can reset to the state before the acting force is applied, that is, it returns to the unlocked state, and the reset of the adjusting component can drive the control component to reset, which is convenient for the subsequent control of the adjusting component by the control component.

[0049] Set the initial state of the adjusting component to the locked state. Then, when it is necessary to adjust the adjusting component to the unlocked state, an acting force is applied through the control component, and the adjusting component is adjusted from the locked state to the unlocked state under the acting force of the control component. After the acting force of the control component disappears, the adjusting component can reset to the state before the acting force is applied, that is, it returns to the locked state.

[0050] In one embodiment, the adjusting assembly includes a connecting rod 05 and a locking and unlocking assembly 6. The locking and unlocking assembly 6 is disposed between two brake shaft assemblies 2. The locking and unlocking assembly 6 has a locking state corresponding to the locking state of the adjusting assembly and an unlocking state corresponding to the unlocking state of the adjusting assembly. The locking and unlocking assembly 6 cooperates with the connecting rod 05, and the connecting rod 05 cooperates with the control assembly. The control assembly can push the connecting rod 05 to move under its own acting force. When the connecting rod 05 moves to the extreme position, the state of the locking and unlocking assembly 6 changes. The connecting rod 05 is connected with a connecting rod reset structure, and the connecting rod reset structure is used to drive the connecting rod 05 to reset after the acting force disappears. The reset of the connecting rod 05 drives the state of the locking and unlocking assembly 6 to recover and the control assembly to reset.

[0051] In this embodiment, the adjusting assembly includes a connecting rod 05 and a locking and unlocking assembly 6. The locking state of the adjusting assembly is the locking state of the locking and unlocking assembly 6, and the unlocking state of the adjusting assembly is the unlocking state of the locking and unlocking assembly 6. The connecting rod 05 cooperates with the control assembly. Therefore, the connecting rod 05 can be pushed to move under the acting force of the control assembly. The connecting rod 05 cooperates with the locking and unlocking assembly 6. The movement of the connecting rod 05 drives the movement of the locking and unlocking assembly 6. When the connecting rod 05 moves to the extreme position, the state of the locking and unlocking assembly 6 changes accordingly. The connecting rod reset structure is used to drive the connecting rod 05 to reset after the acting force of the control assembly disappears. The reset of the connecting rod 05 restores the state of the locking and unlocking assembly 6 and the control assembly resets.

[0052] Specifically, when the lock catch 01 is subjected to the acting force of the lock tongue, it has a tendency to rotate. The brake shaft assembly 2 is correspondingly subjected to the acting force of the lock catch 01, and the brake shaft assembly 2 has a tendency to move closer to each other under this acting force. Whether the brake shaft assembly 2 can move closer to each other also depends on the state of the locking and unlocking assembly 6. When the locking and unlocking assembly 6 is in the locked state, the locking and unlocking assembly 6 cannot meet the requirement for the brake shaft assembly 2 to move closer to each other. Therefore, the brake shaft assembly 2 cannot move closer to each other, the lock catch 01 cannot rotate, and the lock tongue cannot disengage from the corresponding groove. When the locking and unlocking assembly 6 is in the unlocked state, the locking and unlocking assembly 6 can meet the requirement for the brake shaft assembly 2 to move closer to each other. Therefore, the brake shaft assembly 2 can move closer to each other, the lock catch 01 can rotate, and the lock tongue can disengage from the corresponding groove.

[0053] Set the initial state of the opening and closing lock assembly 6 to the locked state. The brake shaft assembly 2 blocks the movement direction of the lock catch 01 during unlocking and the brake shaft assemblies 2 cannot approach each other. The lock is in the locked state. When it is necessary to change the state of the lock, a force is exerted through the control assembly. The force exerted by the control assembly pushes the connecting rod 05 to move. When the connecting rod 05 moves to the extreme position, it drives the state of the opening and closing lock assembly 6 to change from the locked state to the unlocked state. At this time, the two brake shaft assemblies 2 can approach each other to make way for the rotation of the lock catch 01, and the lock catch 01 can rotate, and the lock is opened. When it is necessary to restore the state of the lock adjustment assembly to the locked state again, no force is exerted through the control assembly, the force of the control assembly disappears, the connecting rod reset structure drives the connecting rod 05 to reset, the connecting rod 05 reset drives the state of the opening and closing lock assembly 6 to change from the unlocked state back to the locked state, the lock changes to the locked state, and the connecting rod 05 reset drives the control assembly to reset.

[0054] Set the initial state of the adjustment assembly to the unlocked state. The brake shaft assemblies 2 can approach each other. The lock is in the opened state. When it is necessary to change the state of the lock, a force is exerted through the control assembly. The force exerted by the control assembly pushes the connecting rod 05 to move. When the connecting rod 05 moves to the extreme position, it drives the state of the opening and closing lock assembly 6 to change from the unlocked state to the locked state. At this time, the two brake shaft assemblies 2 cannot approach each other to make way for the rotation of the lock catch 01, and the lock catch 01 cannot rotate, and the lock is locked. When it is necessary to restore the state of the adjustment assembly to the unlocked state again, no force is exerted through the control assembly, the force of the control assembly disappears, the connecting rod reset structure drives the connecting rod 05 to reset, the connecting rod 05 reset drives the state of the opening and closing lock assembly 6 to change from the locked state to the unlocked state, the lock is opened, and the connecting rod 05 reset drives the control assembly to reset.

[0055] In an embodiment, a guiding member and a limiting guiding member are connected to the lock body 04, and a guiding groove and a limiting guiding groove 052 are formed on the connecting rod 05. As Figure 10 shown, the connecting direction of the guiding member and the limiting guiding member, the extending direction of the guiding groove, and the extending direction of the limiting guiding groove 052 all coincide with the moving direction of the connecting rod 05. The guiding member is located in the guiding groove, the limiting guiding member is located in the limiting guiding groove 052, and when the connecting rod 05 moves to the extreme position, one end of the limiting guiding groove 052 close to the control assembly contacts the limiting guiding member. The position of the connecting rod 05 after reset is the same as the initial position of the connecting rod 05, and it is driven to reset by the connecting rod reset spring 051.

[0056] In this embodiment, the movement direction of the connecting rod 05 is achieved through the cooperation of a guiding member, a guiding groove, a limiting guiding member, and a limiting guiding groove 052. Specifically, the guiding groove can move along with the movement of the connecting rod 05. When the guiding groove moves, the guiding member is always located within the guiding groove. The limiting guiding groove 052 can move along with the movement of the connecting rod 05. When the limiting guiding groove 052 moves, the limiting guiding member is always located within the limiting guiding groove 052. The difference between the limiting guiding member and the guiding member is that the limiting guiding member can limit the movement of the connecting rod 05. That is, the extreme position of the movement of the connecting rod 05 is the position where the limiting guiding member contacts the end of the limiting guiding groove 052 close to the control component. At this time, the state of the unlocking and locking component 6 will change, thereby changing the lock from the unlocked state to the locked state or from the locked state to the unlocked state. When specifically setting, the guiding groove can be set as a groove body with the limiting function of the limiting guiding groove 052.

[0057] In one embodiment, the connecting rod reset structure includes a connecting rod reset spring 051. One end of the connecting rod reset spring 051 is connected to the connecting rod 05, and the other end of the connecting rod reset spring 051 is connected to the lock body 04. In this embodiment, when the connecting rod reset spring 051 is in its original length, the connecting rod 05 contacts the control component. When the connecting rod 05 moves, the connecting rod reset spring 051 is compressed or stretched. After the acting force of the control component disappears, the connecting rod reset spring 051 returns to its original length to drive the connecting rod 05 to reset.

[0058] In one embodiment, as Figure 5 shown, a slider 07 is arranged between two brake shaft assemblies 2. The slider 07 includes a lapping portion 071 and an inclined surface portion 072. The lapping portion 071 cooperates with the two brake shaft assemblies 2. The inclined surface portion 072 inclines in the direction close to the corresponding brake shaft assembly 2 from the end far away from the unlocking and locking component 6 to the end close to the unlocking and locking component 6. The end of the inclined surface portion 072 close to the unlocking and locking component 6 is connected to the lapping portion 071. The middle of the lapping portion 071 is connected to the unlocking and locking component 6. When the unlocking and locking component 6 is in the unlocked state, the slider 07 can move in the direction close to the unlocking and locking component 6, enabling the two brake shaft assemblies 2 to approach each other along the inclined surface portion 072. When the unlocking and locking component 6 is in the locked state, the slider 07 cannot move in the direction close to the unlocking and locking component 6. A slider reset spring 063 is connected between the slider 07 and the unlocking and locking component 6. The slider reset spring 063 is configured to prevent the slider 07 from moving in the direction close to the unlocking and locking component 6.

[0059] In this embodiment, a slider 07 is arranged between two brake shaft assemblies 2. The slider 07 includes a lapping portion 071 and an inclined surface portion 072. When the brake shaft assembly 2 is in the position where it blocks the rotation of the lock catch 01 during unlocking, as Figure 5As shown, one end of the brake shaft assembly 2 close to the slider 07 and the overlapping portion 071 of the slider 07 are in contact with each other. When the two brake shaft assemblies 2 approach each other, the contact between the brake shaft assembly 2 and the slider 07 gradually transitions from the overlapping portion 071 to the inclined surface portion 072. When specifically setting the inclined surface portion 072, it can be symmetrical about the perpendicular bisecting plane of the line connecting the two brake shaft assemblies 2.

[0060] When the lock catch 01 is subjected to the acting force of the lock tongue, the brake shaft assemblies 2 tend to move closer to each other. The brake shaft assemblies 2 correspondingly exert an acting force on the slider 07. When the slider 07 is subjected to the acting force of the brake shaft assembly, it also has a tendency to move closer to each other. Whether the slider 07 can actually move still needs to be determined according to the state of the unlocking and locking assembly 6. When the unlocking and locking assembly 6 is in the locked state, the slider 07 cannot move in the direction close to the unlocking and locking assembly 6, so that the brake shaft assemblies 2 cannot approach each other. The brake shaft assemblies 2 block the moving direction of the lock catch 01, and the lock is in the locked state. At this time, the overlapping portion 071 of the brake shaft assembly 2 and the slider 07 are in contact, as Figure 5 shown; when the unlocking and locking assembly 6 is in the unlocked state, after the slider 07 is subjected to the acting force of the brake shaft assembly, it can move in the direction close to the unlocking and locking assembly 6, so that the inclined surface portion 072 of the slider 07 is located between the two brake shaft assemblies 2. Due to the special structure of the inclined surface portion 072, the brake shaft assemblies 2 can approach each other. The fact that the brake shaft assemblies 2 can approach each other can make way for the rotation of the lock catch 01. At this time, the lock catch 01 can rotate, and the lock is in the open state.

[0061] Set the initial state of the unlocking and locking assembly 6 to the locked state again. At this time, the lock catch 01 cannot rotate, and the lock is in the locked state. When it is necessary to change the state of the lock, an acting force is issued through the control assembly. The acting force issued by the control assembly pushes the connecting rod 05 to move. The movement of the connecting rod 05 drives the unlocking and locking assembly 6 to change from the locked state to the unlocked state. At this time, the slider 07 can move in the direction close to the unlocking and locking assembly 6, so that the two brake shaft assemblies 2 can approach each other along the inclined surface portion 072, as Figure 6 shown. The two brake shaft assemblies 2 approach each other to make way for the rotation of the lock catch 01, and the lock catch 01 can rotate, and the lock can be opened.

[0062] Set the initial state of the unlocking and locking assembly 6 to the unlocked state. At this time, the brake shaft assemblies 2 can approach each other, and the lock is in the open state. When it is necessary to change the state of the lock, an acting force is issued through the control assembly. The acting force issued by the control assembly pushes the connecting rod 05 to move. The movement of the connecting rod 05 drives the state of the unlocking and locking assembly 6 to change from the unlocked state to the locked state. At this time, the slider 07 cannot move in the direction close to the unlocking and locking assembly 6, and the lock is locked.

[0063] In addition, a slider return spring 063 is connected between the slider 07 and the unlocking and locking assembly 6. The slider return spring 063 is configured to prevent the slider 07 from moving in the direction close to the unlocking and locking assembly 6. Therefore, when the slider 07 moves in the direction close to the unlocking and locking assembly 6, the slider return spring 063 is in a compressed state. When the latching portion 071 of the slider 07 cooperates with the brake shaft assembly 2, the slider return spring 063 can be in a compressed state or in its original length. When the acting force of the locking tongue on the lock catch 01 disappears, the lock catch 01 resets, and the lock catch 01 resets to drive the brake shaft assembly 2 to reset. After the brake shaft assembly 2 resets, the slider 07 is no longer subjected to the acting force of the brake shaft assembly 2. Therefore, under the elastic force of the slider return spring 063, the slider 07 returns to the state where the latching portion 071 of the slider 07 cooperates with the brake shaft assembly 2.

[0064] Specifically, the latching portion 071 is an inclined surface that slopes in the direction close to the brake shaft assembly 2 from the side far away from the unlocking and locking assembly to the side close to the unlocking and locking assembly. One end of the brake shaft of the brake shaft assembly 2 close to the slider 07 is an inclined surface that cooperates with the inclined surface of the latching portion 071. A limiting block is connected to one end of the inclined surface portion 072 far away from the latching portion 071. The limiting block is used to limit the movement of the brake shaft assembly.

[0065] In one embodiment, as Figures 7 - 8 shown, the unlocking and locking assembly 6 includes a movable bolt 064. The movable bolt 064 includes a first cylindrical section 0641 and a second cylindrical section 0642. The diameter of the second cylindrical section 0642 is greater than that of the first cylindrical section 0641. The part of the second cylindrical section 0642 far away from the first cylindrical section 0641 is connected to the slider 07. A sleeve 065 is sleeved on the part of the movable bolt 064 far away from the slider 07. The sleeve 065 includes a first round hole section 0651 that cooperates with the first cylindrical section 0641 and a second round hole section 0652 that cooperates with the second cylindrical section 0642. The part of the sleeve 065 far away from the slider 07 is connected to the lock body 04. A limiting retaining ring is provided on the part of the sleeve 065 close to the slider 07. An adjusting unit is sleeved on the sleeve 065 between the lock body 04 and the limiting retaining ring. The adjusting unit cooperates with the connecting rod 05. By moving the connecting rod 05, the adjusting unit can be driven to move, thereby changing the state of the unlocking and locking assembly 6. When the unlocking and locking assembly 6 is in an unlocked state, the movable bolt 064 can move in the direction close to the first round hole section 0651 to drive the slider 07 to move in the direction close to the unlocking and locking assembly 6. When the unlocking and locking assembly 6 is in a locked state, the movable bolt 064 cannot move in the direction close to the first round hole section 0651; the slider return spring 063 is sleeved on the movable bolt 064. One end of the slider return spring 063 is connected to the movable bolt 064, and the other end of the slider return spring 063 is connected to the sleeve 065.

[0066] In this embodiment, the second cylindrical section 0642 of the movable bolt 064 is connected to the slider 07. A sleeve 065 is sleeved outside the movable bolt 064. One end of the sleeve 065 away from the slider 07 is connected to the lock body 04. A limiting retaining ring is provided on the part of the sleeve 065 close to the slider 07. An adjusting unit is sleeved on the sleeve 065 between the limiting retaining ring and the lock body 04. The setting of the adjusting unit here is used to adjust the state of the opening and closing lock assembly 6. Specifically, when the opening and closing lock assembly 6 is in the locked state, the opening and closing lock assembly 6 can be changed to the unlocked state through the connecting rod 05 and the adjusting unit. When the opening and closing lock assembly 6 is in the unlocked state, corresponding to the specific structures of the movable bolt 064 and the sleeve 065, the movable bolt 064 can move in the direction close to the first circular hole section 0651 of the sleeve 065. The movement of the movable bolt 064 drives the movement of the slider 07, so as to achieve the purpose of the slider 07 moving in the direction close to the opening and closing lock assembly to make way for the brake shaft assembly 2; when the opening and closing lock assembly 6 is in the unlocked state, the opening and closing lock assembly 6 can be changed to the locked state through the connecting rod 05 and the adjusting unit. When the opening and closing lock assembly 6 is in the locked state, corresponding to the specific structures of the movable bolt 064 and the sleeve 065, the movable bolt 064 cannot move in the direction close to the first circular hole section 0651 of the sleeve 065. Therefore, the slider 07 cannot move to make way for the brake shaft assembly 2, and the lock catch 01 cannot rotate.

[0067] The adjustment of the state of the opening and closing lock assembly 6 is realized through the connecting rod 05 and the adjusting unit. Specifically, when the connecting rod 05 is subjected to the acting force of the control component, the connecting rod 05 moves. The movement of the connecting rod 05 drives the movement of the adjusting unit. After the connecting rod 05 moves to the limit position, the state of the opening and closing lock assembly 6 is adjusted from one state to another state; after the connecting rod 05 is reset, the adjusting unit is reset, and the state of the opening and closing lock assembly 6 is restored.

[0068] In one embodiment, as Figures 7 - 9As shown in the figure, the adjusting unit includes a brake ring 062 and spherical balls 066. The brake ring 062 is sleeved outside a sleeve 065 between a lock body 04 and a limit retaining ring. A plurality of uniformly distributed ball grooves are formed in the circumferential direction of a second circular hole section 0652. Each ball groove accommodates a spherical ball 066. Groove holes 0621 corresponding to the number of the spherical balls 066 are formed in the inner ring wall of the brake ring 062. The groove holes 0621 extend along the axial direction of the brake ring 062. The groove holes 0621 are configured to accommodate the spherical balls 066, so that when the groove holes 0621 of the brake ring 062 are in contact with the spherical balls 066, a second cylindrical section 0642 can move towards a direction close to a first circular hole section 0651; after a slider 07 and a movable bolt 064 are reset, the second cylindrical section 0642 and the first circular hole section 0651 are respectively located on two sides of the spherical balls 066. When the inner ring wall of the brake ring 062 is in contact with the spherical balls 066, the spherical balls 066 prevent the second cylindrical section 0642 from moving towards the direction close to the first circular hole section 0651. When the groove holes 0621 of the brake ring 062 are in contact with the spherical balls 066, the second cylindrical section 0642 can move towards the direction close to the first circular hole section 0651; when the unlocking and locking assembly 6 is in an unlocked state, the groove holes 0621 of the brake ring 062 are in contact with the spherical balls 066. When the unlocking and locking assembly 6 is in a locked state, the inner ring wall of the brake ring 062 is in contact with the spherical balls 066; the brake ring 062 cooperates with a connecting rod 05.

[0069] In this embodiment, a plurality of uniformly distributed ball grooves are formed in the circumferential direction of a second circular hole section 0652 of the sleeve 065. For example, 4 ball grooves are provided. Each ball groove accommodates a spherical ball 066. The brake ring 062 is sleeved outside the sleeve 065. Groove holes 0621 corresponding to the number of the spherical balls 066 are formed in the inner wall of the brake ring 062. The groove holes 0621 are configured to make way for the spherical balls 066 so that a second cylindrical section 0642 of the movable bolt 064 can move towards the direction close to the first circular hole section 0651. Therefore, the depth of the groove holes 0621 needs to meet the requirement that after the spherical balls 066 are located in the groove holes 0621, the second cylindrical section 0642 of the movable bolt 064 can pass through the spherical balls 066 and move towards the direction close to the first circular hole section 0651. Additionally, when the spherical balls 066 are in contact with the inner ring wall of the brake ring 062, the spherical balls 066 are used to prevent the movable bolt 064 from moving towards the direction close to the first circular hole section 0651. At this time, it is necessary to meet the requirement that the outer diameter of the second cylindrical section 0642 is greater than the inner diameter of a ring formed by a plurality of spherical balls 066 at this time.

[0070] As can be seen from the above, when the slider 07 is no longer under the action of the brake shaft assembly 2, the slider 07 returns to the state where the lapping portion 071 of the slider 07 cooperates with the brake shaft assembly 2 under the elastic force of the slider return spring 063. The reset of the slider 07 drives the moving bolt 064 to reset, and the moving bolt 064 finally resets to a state where the second cylindrical section 0642 and the first round hole section 0651 are located on both sides of the ball 066 respectively.

[0071] When the inner ring wall of the brake ring 062 contacts the ball 066, the ball 066 can block the moving bolt 064 from moving towards the direction close to the first round hole section 0651. At this time, the opening and closing lock assembly 6 is in the locked state, the moving bolt 064 cannot move, the slider 07 cannot move, the brake shaft assembly 2 cannot move, and the lock catch 01 cannot rotate; when the slot hole 0621 of the brake ring 062 contacts the ball 066, the slot hole 0621 can make way for the ball 066. At this time, the opening and closing lock assembly 6 is in the unlocked state, and the ball 066 cannot block the moving bolt 064 from moving towards the direction close to the first round hole section 0651. Therefore, the moving bolt 064 can move, the slider 07 can move, the brake shaft assembly 2 can move, and the lock catch 01 can rotate.

[0072] By adjusting the contact between the inner ring wall of the brake ring 062 and the ball 066 or the contact between the slot hole 0621 of the brake ring 062 and the ball 066, the state of the opening and closing lock assembly 6 can be adjusted, so that the opening and closing lock assembly 6 is in the locked state or the unlocked state; specifically, it is set that the initial state of the opening and closing lock assembly 6 is the locked state. At this time, the inner ring wall of the brake ring 062 contacts the ball 066. At this time, when a force is generated by the control component to push the connecting rod 05 to move, the movement of the connecting rod 05 can drive the brake ring 062 to rotate, so that the brake ring 062 rotates to the state where the slot hole 0621 of the brake ring 062 contacts the ball 066. At this time, the opening and closing lock assembly 6 is adjusted to the unlocked state; it is set that the initial state of the opening and closing lock assembly 6 is the unlocked state. At this time, the slot hole 0621 of the brake ring 062 contacts the ball 066. When a force is generated by the control component to push the connecting rod 05 to move, the movement of the connecting rod 05 can drive the brake ring 062 to rotate, so that the brake ring 062 rotates to the state where the inner ring wall of the brake ring 062 contacts the ball 066. At this time, the opening and closing lock assembly 6 is adjusted to the locked state.

[0073] In an embodiment, an adjusting portion 0622 is connected to one side of the brake ring 062, and an adjusting hole 053 cooperating with the adjusting portion 0622 is formed in the connecting rod 05; a support plate 061 is sleeved and connected to the part of the sleeve 065 away from the slider 07. The support plate 061 is connected to the lock body 04, and a state adjusting screw 08 is connected to the support plate 061. The state adjusting screw 08 abuts against the brake ring 062, and the state adjusting screw 08 is used to adjust the initial state of the opening and closing lock assembly.

[0074] In this embodiment, the cooperation between the connecting rod 05 and the brake ring 062 is specifically achieved through the adjusting portion 0622 and the adjusting hole 053. As known from the foregoing, when the connecting rod 05 moves to the limit position, the state of the unlocking and locking assembly 6 changes, and the reset of the connecting rod 05 drives the state of the unlocking and locking assembly 6 to recover. Therefore, before the connecting rod 05 resets, the end of the adjusting hole 053 away from the control assembly needs to contact the adjusting portion 0622, so as to drive the adjusting portion 0622 to rotate through the adjusting hole 053 during the reset process of the connecting rod 05 to achieve the purpose of restoring the state of the unlocking and locking assembly 6. Before the connecting rod 05 moves to the limit position, the end of the adjusting hole 053 close to the control assembly needs to contact the adjusting portion 0622, so as to drive the adjusting portion 0622 to rotate through the movement of the adjusting hole 053 during the process of the connecting rod 05 moving to the limit position to change the state of the unlocking and locking assembly 6.

[0075] Specifically, taking the example that when the connecting rod 05 resets, the unlocking and locking assembly 6 is in the locked state and the inner ring wall of the brake ring 062 contacts the spherical ball 066, the relative position relationship between the adjusting portion 0622 and the adjusting hole 053 during the movement of the connecting rod 05 is as follows: Under the action of the control assembly, the connecting rod 05 starts to move from the original position, and the end of the adjusting hole 053 close to the control assembly gradually approaches the adjusting portion 0622; during the movement of the connecting rod 05, the end of the adjusting hole 053 close to the control assembly contacts the adjusting portion 0622; the connecting rod 05 continues to move, and the adjusting hole 053 pushes the adjusting portion 0622 to rotate; when the connecting rod 05 moves to the limit position, the adjusting portion 0622 rotates until the slot hole 0621 of the brake ring 062 contacts the spherical ball 066, and the state of the unlocking and locking assembly 6 is adjusted; when the action force of the control assembly disappears, the connecting rod 05 starts to reset from the limit position, and the end of the adjusting hole 053 away from the control assembly gradually approaches the adjusting portion 0622; during the reset process of the connecting rod 05, the end of the adjusting hole 053 away from the control assembly contacts the adjusting portion 0622; the connecting rod 05 continues to reset, and the adjusting hole 053 pushes the adjusting portion 0622 to rotate; when the connecting rod 05 resets to the original position, the adjusting portion 0622 rotates until the inner ring wall of the brake ring 062 contacts the spherical ball 066, and the state of the unlocking and locking assembly 6 is reset.

[0076] The initial state of the opening and closing lock assembly 6 may be a locked state or an unlocked state, which is determined by whether the inner ring wall of the brake ring 062 contacts the spherical ball 066 or the slot hole 0621 of the brake ring 062 contacts the spherical ball 066 at the initial time. The state of the brake ring 062 is maintained by the state adjustment screw 08. Specifically, when the state adjustment screw 08 is tightened, the state adjustment screw 08 abuts against the brake ring 062 so that the brake ring 062 cannot rotate, and the state of the opening and closing lock assembly 6 is maintained. Secondly, the initial state of the opening and closing lock assembly 6 can also be changed through the state adjustment screw 08. Set the initial state of the opening and closing lock assembly 6 to the locked state. At this time, the inner ring wall contacts the spherical ball 066. After loosening the state adjustment screw 08, the state adjustment screw 08 no longer abuts on the brake ring 062. Then rotate the brake ring 062 so that the brake ring 062 changes from the state where the inner ring wall contacts the spherical ball 066 to the state where the slot hole 0621 contacts the spherical ball 066. Tightening the state adjustment screw 08 again realizes the adjustment of the initial state of the opening and closing lock assembly 6, thereby realizing the adjustment of the initial state of the lock.

[0077] In one embodiment, as Figure 4 shown, each brake shaft assembly 2 includes a brake shaft 02 and a brake shaft sleeve 022. The brake shaft 02 is arranged inside the brake shaft sleeve 022. Each brake shaft sleeve 022 is fixedly connected to the lock body 04. A brake shaft return spring is connected between each brake shaft sleeve 022 and the brake shaft 02 inside it; the lock catch 01 includes a lock catch body. Lock catch mating portions 012 are respectively connected to both ends of the lock catch body along the axis direction of the main shaft 03. A lock catch mating inclined surface 0121 is provided on the lock catch mating portion 012. One end of each brake shaft 02 close to the lock catch mating portion 012 is a mating inclined surface 021. The mating inclined surface 021 cooperates with the corresponding lock catch mating inclined surface 0121; the brake shaft return spring is configured to make the mating inclined surface 021 of the brake shaft 02 abut against the lock catch mating inclined surface 0121 of the lock catch 01 and prevent the brake shaft 02 from moving in a direction away from the corresponding lock catch mating inclined surface 0121.

[0078] In this embodiment, the brake shaft assembly 2 includes a brake shaft 02 and a brake shaft sleeve 022. A brake shaft return spring is connected between the brake shaft 02 and the brake shaft sleeve 022. The brake shaft 02 can slide inside the brake shaft sleeve 022. The lock catch 01 includes a lock catch body. Lock catch mating portions 012 are provided at both ends of the lock catch body. One brake shaft assembly 2 cooperates with one lock catch mating portion 012. Specifically, a lock catch mating inclined surface 0121 is provided on the lock catch mating portion 012. One end of the brake shaft 02 close to the lock catch mating portion 012 is a mating inclined surface 021. The mating inclined surface 021 cooperates with the lock catch mating inclined surface 0121. When the lock catch 01 rotates, the lock catch 01 generates a force on the mating inclined surface 021 of the brake shaft 02 through the lock catch mating inclined surface 0121, so that the brake shaft 02 has a tendency to move relative to the brake shaft sleeve 022.

[0079] The end of the brake shaft 02 close to the slider 07 is also provided with a bevel, and the overlapping portion 071 of the slider 07 is provided with a matching bevel. The two brake shafts 02 limit the slider 07 through their bevels, so that when the slider 07 is reset, the overlapping portion 071 of the slider 07 is located between the bevels of the two brake shafts 02.

[0080] The brake shaft reset spring is used to drive the brake shaft 02 to reset after the force of the lock on the brake shaft 02 disappears, and the brake shaft reset spring needs to be able to make the matching inclined surface 021 of the brake shaft 02 abut against the lock matching inclined surface 0121 of the lock 01 when resetting. Figure 4 As shown, at this time, the mating bevel 021 of the brake shaft 02 abuts against the lock mating bevel 0121 of the lock buckle 01, and when the brake shaft reset spring is in its original length state, when the brake shaft 02 is moved by the force of the lock buckle 01, the brake shaft reset spring can be in an extended state or a compressed state; or when the mating bevel 021 of the brake shaft 02 abuts against the lock mating bevel 0121 of the lock buckle 01, when the brake shaft reset spring is in a compressed state, when the brake shaft 02 is moved by the force of the lock buckle 01, the compression amount of the brake shaft reset spring increases; or when the mating bevel 021 of the brake shaft 02 abuts against the lock mating bevel 0121 of the lock buckle 01, when the brake shaft reset spring is in an extended state, when the brake shaft 02 is moved by the force of the lock buckle 01, the elongation amount of the brake shaft reset spring increases.

[0081] In one embodiment, the control component includes a solenoid and a movable core shaft arranged in the solenoid, the solenoid is used to generate a magnetic field, and the movable core shaft is used to move under the action of the magnetic field. A limit block is provided in the solenoid between the lock body 04 and the movable core shaft, and the limit block is connected to the lock body 04. The movement of the movable core shaft drives the connecting rod 05 to move, thereby changing the state of the opening and closing lock assembly 6. The reset of the connecting rod 05 drives the movable core shaft to reset; the lock body 04 is connected to the main shaft 03, the lock buckle 01 is sleeved on the main shaft 03, and the main shaft 03 is also sleeved with a lock buckle reset torsion spring 011.

[0082] In this embodiment, the control component includes a solenoid and a movable core shaft. The movable core shaft is used to move under the magnetic field generated by the solenoid. The limit position of the movement of the movable core shaft is determined by the limit position of the connecting rod 05. After the magnetic field disappears, the movable core shaft is reset, and the reset position of the movable core shaft is limited by the limit block.

[0083] Secondly, the resetting of the lock buckle 01 is achieved through the lock buckle resetting torsion spring 011. When the lock buckle 01 is subjected to the force of the lock tongue, the lock buckle 01 rotates so that the lock tongue can be disengaged from the groove at the lock buckle 01. After the lock tongue is disengaged, the lock buckle 01 is reset under the action of the lock buckle resetting torsion spring 011.

[0084] The braking shaft is arranged in front of the rotation direction of the latch, so the braking shaft can restrict the rotation of the latch. When the unlocking and locking assembly is in the initial state, the inclined surface of the braking shaft contacts the inclined surface of the lapping part, and the slider abuts against the inclined surface of the braking shaft through the slider return spring; when unlocking, the latch rotates to push the braking shaft to move, and the inclined surface part of the slider contacts the inclined surface of the braking shaft during unlocking.

[0085] In the embodiment of the present invention, braking shaft assemblies 2 are arranged on both sides of the latch 01, so that both sides of the latch 01 can contact the braking shaft assemblies 2, solving the problem of distortion and deformation in the prior art due to the contact between one side of the latch 01 and the braking shaft, and improving the service life of the lock; secondly, both sides of the latch 01 are in contact with the braking shaft assemblies 2, so the latch 01 can bear a large force, and the tensile force that can be borne is expected to be more than 1.8 times that of the original lock, greatly expanding the range of use of the lock, so that the lock can be used in places that need to bear a large force; when the latch 01 is locked, both sides are in contact with the braking shaft, and it can withstand a large dynamic impact test, improving the use performance of the lock; when an external thrust (pre-pressure) is applied to the door, the force will be transmitted to the two braking shaft assemblies 2 through the latch 01, so the force received by each braking shaft assembly 2 can be reduced, so that the door lock can still be opened when powered on or off under the action of a large external force, avoiding the situation that the door cannot be normally unlocked when deformed, distorted or under the action of external force.

[0086] It should be noted that unless otherwise specified, the technical terms or scientific terms used in this application should have the ordinary meaning understood by those skilled in the art to which the present invention belongs.

[0087] In addition, terms such as "one", "two", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. In the description of the present invention, "a plurality" means more than two unless otherwise specifically defined.

[0088] In this application, unless otherwise clearly specified and limited, terms such as "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0089] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the various embodiments of the present invention, and they should all be covered by the scope of the claims and the description of the present invention. In particular, as long as there is no structural conflict, the various technical features mentioned in each embodiment can be combined in any way. The present invention is not limited to the specific embodiments disclosed in the text, but includes all technical solutions falling within the scope of the claims.

Claims

1. A cathode lock, comprising a lock body, a lock catch and a control component, characterized in that, Both sides of the latch are provided with brake shaft assemblies that cooperate with the latch. The brake shaft assemblies are configured to block the rotation direction of the latch during unlocking. The two brake shaft assemblies can generate a tendency to move closer to each other under the action of the latch and can be reset after the latch is reset. An adjustment assembly is arranged between the two brake shaft assemblies. The adjustment assembly includes a connecting rod and an unlocking and locking assembly. The unlocking and locking assembly is arranged between the two brake shaft assemblies. The unlocking and locking assembly cooperates with the connecting rod, and the connecting rod cooperates with the control assembly. The control assembly can push the connecting rod to move under its own acting force. When the connecting rod moves to the limit position, the state of the unlocking and locking assembly changes. The connecting rod is connected with a connecting rod reset structure. The connecting rod reset structure is used to drive the connecting rod to reset after the acting force of the control assembly disappears. The reset of the connecting rod drives the state of the unlocking and locking assembly to recover and the control assembly to reset. A slider is arranged between the two brake shaft assemblies. The slider includes a lapping part and an inclined surface part. The lapping part cooperates with the two brake shaft assemblies. The inclined surface part inclines in the direction close to the corresponding brake shaft assembly from the end far away from the unlocking and locking assembly to the end close to the unlocking and locking assembly. The end of the inclined surface part close to the unlocking and locking assembly is connected with the lapping part. The middle part of the lapping part is connected with the unlocking and locking assembly. When the unlocking and locking assembly is in the unlocked state, the slider can move in the direction close to the unlocking and locking assembly, enabling the two brake shaft assemblies to move closer to each other along the inclined surface part. When the unlocking and locking assembly is in the locked state, the slider cannot move in the direction close to the unlocking and locking assembly. A slider reset spring is connected between the slider and the unlocking and locking assembly. The slider reset spring is configured to prevent the slider from moving in the direction close to the unlocking and locking assembly.

2. The cathode lock according to claim 1, wherein A guide member and a limit guide member are connected to the lock body. The connecting rod is provided with a guide groove and a limit guide groove. The connection direction of the guide member and the limit guide member, the extension direction of the guide groove, and the extension direction of the limit guide groove all coincide with the moving direction of the connecting rod. The guide member is located in the guide groove, and the limit guide member is located in the limit guide groove. When the connecting rod moves to the limit position, the end of the limit guide groove close to the control assembly contacts the limit guide member.

3. The cathode lock according to claim 1, wherein, The connecting rod reset structure includes a connecting rod reset spring. One end of the connecting rod reset spring is connected with the connecting rod, and the other end of the connecting rod reset spring is connected with the lock body.

4. The cathode lock according to claim 1, characterized in that, The unlocking and locking assembly includes a movable bolt. The movable bolt includes a first cylindrical section and a second cylindrical section. The diameter of the second cylindrical section is larger than that of the first cylindrical section. The part of the second cylindrical section far away from the first cylindrical section is connected with the slider. A sleeve is sleeved on the part of the movable bolt away from the slider. The sleeve includes a first round hole section matching with the first cylindrical section and a second round hole section matching with the second cylindrical section. The part of the sleeve away from the slider is connected to the lock body, and a limit retaining ring is arranged on the part of the sleeve close to the slider. An adjusting unit is sleeved on the sleeve between the lock body and the limit retaining ring. The adjusting unit cooperates with the connecting rod. The state of the opening and closing locking assembly can be changed through the connecting rod and the adjusting unit. When the opening and closing locking assembly is in the unlocked state, the movable bolt can move towards the direction close to the first round hole section to drive the slider to move towards the direction close to the opening and closing locking assembly. When the opening and closing locking assembly is in the locked state, the movable bolt cannot move towards the direction close to the first round hole section. The slider return spring is sleeved on the movable bolt. One end of the slider return spring is connected to the movable bolt, and the other end of the slider return spring is connected to the sleeve.

5. The cathode lock according to claim 4, wherein The adjusting unit includes a brake ring and spherical balls. The brake ring is sleeved on the outside of the sleeve between the lock body and the limit retaining ring. A plurality of uniformly distributed ball grooves are formed in the circumferential direction of the second round hole section, and each ball groove contains a spherical ball. Groove holes corresponding to the number of the spherical balls are formed in the inner ring wall of the brake ring, and the groove holes extend along the axial direction of the brake ring. After the slider and the movable bolt are reset, the second cylindrical section and the first round hole section are respectively located on both sides of the spherical ball. When the inner ring wall of the brake ring contacts the spherical ball, the spherical ball makes the second cylindrical section unable to move towards the direction close to the first round hole section, and the opening and closing locking assembly is in the locked state. When the groove hole of the brake ring contacts the spherical ball, the second cylindrical section can move towards the direction close to the first round hole section, and the opening and closing locking assembly is in the unlocked state. The brake ring cooperates with the connecting rod.

6. The cathode lock according to claim 5, wherein An adjusting part is connected to one side of the brake ring, and an adjusting hole cooperating with the adjusting part is formed in the connecting rod. A support plate is sleeved and connected to the part of the sleeve away from the slider. The support plate is connected to the lock body, and a state adjusting screw is connected to the support plate. The state adjusting screw abuts against the brake ring, and the state adjusting screw is used for adjusting the initial state of the opening and closing locking assembly.

7. The cathode lock according to claim 1, characterized in that, Each brake shaft assembly includes a brake shaft and a brake shaft sleeve. The brake shaft is arranged in the brake shaft sleeve. Each brake shaft sleeve is fixedly connected to the lock body, and a brake shaft return spring is connected between each brake shaft sleeve and the brake shaft inside it. The lock catch includes a lock catch body. A main shaft is connected inside the lock body. Lock catch mating parts are respectively connected to both ends of the lock catch body along the axial direction of the main shaft. Lock catch mating inclined surfaces are arranged on the lock catch mating parts. One end of each brake shaft close to the lock catch mating part is a mating inclined surface, and the mating inclined surface cooperates with the corresponding lock catch mating inclined surface. The brake shaft return spring is configured to press the mating inclined surface of the brake shaft against the latch mating inclined surface of the latch, and prevent the brake shaft from moving away from the corresponding latch mating inclined surface.

8. The cathode lock according to claim 1, characterized in that, The control assembly includes a solenoid and a moving mandrel disposed within the solenoid. The solenoid is used to generate a magnetic field, and the moving mandrel is configured to move under the action of the magnetic field. A limit stop is provided within the solenoid between the lock body and the moving mandrel. The limit stop is connected to the lock body. The movement of the moving mandrel drives the link to move, thereby changing the state of the opening and closing locking assembly. The return of the link drives the moving mandrel to return to its original position. A main shaft is connected within the lock body. The latch is sleeved on the main shaft, and a latch return torsion spring is also sleeved on the main shaft.

Images