Self-lubricating connecting rod lock

Abstract

The present application relates to a kind of self-lubricating connecting rod lock, including lock shell and the transmission assembly being arranged in lock shell, the transmission assembly includes transmission gear and the connecting rod of linear reciprocating motion with transmission gear meshing, recess for accommodating transmission gear is provided in the lock shell, the side of the lock shell is provided with cover plate, it is characterized in that: the side of the cover plate away from lock shell is provided with liquid storage box and drive mechanism, the drive mechanism is located in the side of liquid storage box, the liquid storage box includes storage cavity and movable cavity, the side of movable cavity is connected with storage cavity, the other side is connected with liquid outlet pipe, the other end of the liquid outlet pipe is connected with lock shell and is communicated with recess, drive mechanism is matched with movable cavity and is used to drive the liquid in storage cavity to flow into recess, beneficial effect is in that: by drive mechanism to drive the lubricating liquid in liquid storage box to lubricate the drive gear in transmission assembly, to this to extend the service life of drive gear and guarantee the smoothness of operation switch.

Description

Technical Field

[0001] This invention relates to the field of linkage lock technology, and in particular to a self-lubricating linkage lock. Background Technology

[0002] A lever lock is a type of lock primarily used for locking metal panel cabinet frames, door frames, or box frames. This lock consists of a lock body, a connecting rod, and guide components. It includes a molded connecting rod and positioning components. An operating device controls the connecting rod to swing between locked and unlocked positions. Its working principle involves the lock cylinder pin interacting with the connecting rod to achieve the opening and closing action. It is suitable for various scenarios such as industrial control cabinets, explosion-proof cabinets, filing cabinets, and intelligent express delivery lockers.

[0003] In the current technology, when the linkage locks on the market are used in industrial control cabinets, the gears in the linkage locks are not effectively lubricated because the cabinets need to be frequently inspected and the cabinet doors need to be opened and closed. Therefore, there is an urgent need for improvement. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a self-lubricating connecting rod lock to solve the above-mentioned technical problems.

[0005] The technical solution of the present invention is implemented as follows: A self-lubricating linkage lock includes a lock housing and a transmission assembly disposed within the lock housing. The transmission assembly includes a transmission gear and a connecting rod that meshes with the transmission gear to achieve linear reciprocating motion. A groove for accommodating the transmission gear is provided within the lock housing. A cover plate is provided on one side of the lock housing. A liquid storage box and a drive mechanism are disposed on the side of the cover plate opposite to the lock housing. The drive mechanism is located on one side of the liquid storage box. The liquid storage box includes a liquid storage cavity and a movable cavity. One side of the movable cavity is connected to the liquid storage cavity, and the other side is connected to a liquid outlet pipe. The other end of the liquid outlet pipe is connected to the lock housing and communicates with the groove. The drive mechanism cooperates with the movable cavity and is used to drive the liquid in the liquid storage cavity to flow into the groove.

[0006] By adopting the above technical solution, lubricant is added to the reservoir box, and the lubricant in the reservoir box is driven by the drive mechanism to lubricate the drive gear in the transmission component, thereby extending the service life of the drive gear and ensuring the smoothness of the operation switch, eliminating the need for daily manual maintenance. The reservoir box and drive mechanism are integrated on the same side of the cover plate, making full use of the space of the cover plate without affecting the original installation method and function of the lock body.

[0007] The present invention is further configured such that: the driving mechanism includes a motor, a plunger, and a driving assembly; the plunger is disposed in the movable cavity; and the motor is used to control the driving assembly to drive the plunger to reciprocate within the movable cavity.

[0008] By adopting the above technical solution, a plunger is set in the active cavity, and the liquid in the reservoir is driven by the plunger. The drive component can smoothly convert the continuous rotation of the motor into the linear reciprocating motion of the plunger, avoiding motion impact and vibration, ensuring the stability of the oil supply process, and ensuring the sealing during the movement.

[0009] The present invention is further configured such that: the driving assembly includes an annular fixed disk, a bearing sleeved in the annular fixed disk, and a turntable sleeved in the bearing; one end of the turntable is connected to the output shaft of the motor, and the other end of the turntable is eccentrically provided with a driving gear; the driving gear is rotatably connected to the turntable; a rack ring is fixedly connected to one side of the annular fixed disk; the driving gear meshes with the rack ring; the driving assembly also includes a connecting shaft; one end of the connecting shaft is rotatably connected to the axis of the driving gear, and the other end is rotatably connected to the end of the plunger away from the movable cavity.

[0010] By adopting the above technical solution, the turntable rotates under the drive of the motor. The eccentrically set drive gear meshes with the fixed rack ring, and the drive gear itself rotates. This compound motion is converted into the linear reciprocating motion of the plunger through the connecting shaft. The structure is simple, the number of parts is small, and the transmission chain is short, which reduces the failure rate and maintenance difficulty.

[0011] The present invention is further configured such that: the driving mechanism further includes a limiting plate, the plunger passes through the limiting plate and is movably engaged with the movable cavity, a connecting member is fixedly connected to the plunger, and the other end of the connecting member is rotatably connected to the connecting shaft.

[0012] By adopting the above technical solution, the limiting plate is set on the edge of the annular fixing plate away from the motor and located at the end close to the liquid storage box. The setting of the limiting plate can improve the stability of the plunger movement.

[0013] The present invention is further configured such that the annular fixed disk and the gear ring are concentrically arranged, and the gear ring is located on the side of the annular fixed disk away from the motor.

[0014] By adopting the above technical solution, the concentric setting improves the stability of the drive gear movement of the eccentric setting. At the same time, the change of the eccentric distance can adjust the motion formation, making the adjustment more convenient. The installation position of the gear ring does not interfere with the installation of the motor.

[0015] The present invention is further configured such that: a first one-way valve is provided at the connection between the active chamber and the liquid storage chamber for allowing liquid in the liquid storage chamber to flow unidirectionally into the active chamber, and a second one-way valve is provided on the liquid outlet pipe for allowing liquid in the active chamber to flow unidirectionally into the liquid outlet pipe.

[0016] By adopting the above technical solution, the connection channel between the movable chamber and the liquid storage chamber and the channel of the liquid outlet pipe are set as a through channel. When the plunger moves back and forth along the movable chamber, it continuously opens and closes these two positions, so that the lubricating fluid enters the movable chamber from the liquid storage chamber. Since the first check valve can prevent the lubricating fluid from flowing back into the liquid storage chamber, the second check valve can prevent the lubricating fluid from flowing back into the movable chamber when it is pressed out from the liquid outlet pipe, and the liquid outlet effect is further improved.

[0017] The present invention is further configured such that: an injection hole is provided on the liquid storage box, and the injection hole is in communication with the liquid storage cavity.

[0018] By adopting the above technical solution, the design of the injection hole facilitates liquid addition. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is an exploded view of the linkage lock according to a specific embodiment of the present invention; Figure 2 This is a schematic diagram of the cover plate structure according to a specific embodiment of the present invention; Figure 3 This is a schematic diagram of the drive mechanism structure according to a specific embodiment of the present invention; Figure 4 This is a cross-sectional view of the liquid storage box according to a specific embodiment of the present invention.

[0021] Reference numerals: 1. Lock housing; 100. Groove; 2. Transmission assembly; 200. Transmission gear; 201. Connecting rod; 3. Cover plate; 4. Liquid storage box; 400. Liquid storage chamber; 401. Movable chamber; 5. Drive mechanism; 500. Motor; 501. Plunger; 502. Annular fixed plate; 503. Bearing; 504. Turntable; 505. Drive gear; 506. Rack ring; 507. Limiting plate; 508. Connecting shaft; 509. Connecting piece; 510. First check valve; 511. Second check valve; 6. Discharge pipe. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] like Figures 1 to 4 As shown, this invention discloses a self-lubricating linkage lock, including a lock housing 1 and a transmission assembly 2 disposed within the lock housing 1. The transmission assembly 2 includes a transmission gear 200 and a connecting rod 201 that meshes with the transmission gear 200 to achieve linear reciprocating motion. The lock housing 1 is provided with a groove 100 for accommodating the transmission gear 200. A cover plate 3 is provided on one side of the lock housing 1. A liquid storage box 4 and a drive mechanism 5 are disposed on the side of the cover plate 3 away from the lock housing 1. The drive mechanism 5 is located on one side of the liquid storage box 4. The liquid storage box 4 includes a liquid storage cavity 400 and a movable cavity 401. One side of the movable cavity 401 is connected to the liquid storage cavity 400, and the other side is connected to a liquid outlet pipe 6. The other end of the liquid outlet pipe 6 is connected to the lock housing 1 and communicates with the groove 100. The drive mechanism 5 cooperates with the movable cavity 401 and is used to drive the liquid in the liquid storage cavity 400 to flow into the groove 100. Lubricant is added to the reservoir 4, and the lubricant in the reservoir 4 is driven by the drive mechanism 5 to lubricate the drive gear 505 in the transmission assembly 2, thereby extending the service life of the drive gear 505 and ensuring the smoothness of the operation switch, eliminating the need for daily manual maintenance. The reservoir 4 and the drive mechanism 5 are integrated on the same side of the cover plate 3, making full use of the space of the cover plate 3 without affecting the original installation method and function of the lock body.

[0024] The drive mechanism 5 includes a motor 500, a plunger 501, and a drive assembly. The plunger 501 is disposed within the movable cavity 401. The motor 500 controls the drive assembly to drive the plunger 501 to reciprocate within the movable cavity 401. The plunger 501, positioned within the movable cavity 401, drives the flow of liquid within the reservoir 400. The drive assembly smoothly converts the continuous rotational motion of the motor 500 into the linear reciprocating motion of the plunger 501, avoiding impact and vibration, ensuring the smoothness of the oil supply process, and guaranteeing sealing during operation. The drive mechanism 5 also includes a housing containing a power supply and a processor. The output of the processor is connected to the input of the motor 500, providing a drive signal to the motor 500, allowing it to operate in stages without human intervention.

[0025] The drive assembly includes an annular fixed disk 502, a bearing 503 sleeved in the annular fixed disk 502, and a turntable 504 sleeved in the bearing 503. One end of the turntable 504 is connected to the output shaft of the motor 500, and the other end of the turntable 504 is eccentrically provided with a drive gear 505. The drive gear 505 is rotatably connected to the turntable 504. A rack ring 506 is fixedly connected to one side of the annular fixed disk 502, and the drive gear 505 meshes with the rack ring 506. The drive assembly also includes a connecting shaft 508. One end of the connecting shaft 508 is rotatably connected to the axis of the drive gear 505, and the other end is rotatably connected to the end of the plunger 501 away from the movable cavity 401. The turntable 504 rotates under the drive of the motor 500. The eccentrically set drive gear 505 meshes with the fixed rack ring 506. The drive gear 505 itself rotates, and this compound motion is converted into the linear reciprocating motion of the plunger 501 through the connecting shaft 508. The structure is simple, with few parts and a short transmission chain, which reduces the failure rate and maintenance difficulty. The outer side of the gear ring is provided with multiple connecting ears that are spaced apart along its outer circumference. The gear ring is fixedly connected to the annular fixed disk 502 through the multiple connecting ears.

[0026] The drive mechanism 5 also includes a limiting plate 507. The plunger 501 passes through the limiting plate 507 and is movably engaged with the movable cavity 401. A connecting member 509 is fixedly connected to the plunger 501, and the other end of the connecting member 509 is rotatably connected to the connecting shaft 508. The limiting plate 507 is located on the edge of the annular fixed plate away from the motor 500 and at the end close to the liquid storage box 4. The limiting plate 507 can improve the stability of the plunger 501's movement.

[0027] The annular fixed disk 502 and the gear ring are concentrically arranged, with the gear ring located on the side of the annular fixed disk 502 facing away from the motor 500. This concentric arrangement improves the stability of the eccentrically arranged drive gear 505, and changes in the eccentric distance can adjust the motion, making adjustment more convenient. Furthermore, the installation position of the gear ring does not interfere with the installation of the motor 500.

[0028] A first one-way valve 510 is provided at the connection between the movable chamber 401 and the storage chamber 400 to allow liquid in the storage chamber 400 to flow unidirectionally into the movable chamber 401. A second one-way valve 511 is provided on the outlet pipe 6 to allow liquid in the movable chamber 401 to flow unidirectionally into the outlet pipe 6. The connection channel between the movable chamber 401 and the storage chamber 400 and the channel of the outlet pipe 6 are configured as a through channel. The plunger 501 continuously opens and closes these two positions as it reciprocates along the movable chamber 401, allowing lubricating fluid to enter the movable chamber 401 from the storage chamber 400. Because the first one-way valve 510 prevents lubricating fluid from flowing back into the storage chamber 400, and the second one-way valve 511 prevents lubricating fluid from flowing back into the movable chamber 401 when it is pressed out from the outlet pipe 6, the dispensing effect is further improved.

[0029] The liquid storage box 4 is provided with a liquid injection hole, which communicates with the liquid storage cavity 400. The liquid injection hole facilitates the addition of liquid.

[0030] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A self-lubricating linkage lock, comprising a lock housing (1) and a transmission assembly (2) disposed within the lock housing (1), the transmission assembly (2) comprising a transmission gear (200) and a connecting rod (201) meshing with the transmission gear (200) to achieve linear reciprocating motion, the lock housing (1) having a groove (100) for accommodating the transmission gear (200), and a cover plate (3) disposed on one side of the lock housing (1), characterized in that: The cover plate (3) is provided with a liquid storage box (4) and a drive mechanism (5) on the side away from the lock shell (1). The drive mechanism (5) is located on one side of the liquid storage box (4). The liquid storage box (4) includes a liquid storage cavity (400) and a movable cavity (401). One side of the movable cavity (401) is connected to the liquid storage cavity (400), and the other side is connected to a liquid outlet pipe (6). The other end of the liquid outlet pipe (6) is connected to the lock shell (1) and communicates with the groove (100). The drive mechanism (5) cooperates with the movable cavity (401) and is used to drive the liquid in the liquid storage cavity (400) to flow into the groove (100).

2. The self-lubricating linkage lock according to claim 1, characterized in that: The drive mechanism (5) includes a motor (500), a plunger (501) and a drive assembly. The plunger (501) is disposed in the movable cavity (401). The motor (500) is used to control the drive assembly to drive the plunger (501) to reciprocate within the movable cavity (401).

3. A self-lubricating linkage lock according to claim 2, characterized in that: The drive assembly includes an annular fixed disk (502), a bearing (503) sleeved in the annular fixed disk (502), and a turntable (504) sleeved in the bearing (503). One end of the turntable (504) is connected to the output shaft of the motor (500), and the other end of the turntable (504) is eccentrically provided with a drive gear (505). The drive gear (505) is rotatably connected to the turntable (504). A rack ring (506) is fixedly connected to one side of the annular fixed disk (502), and the drive gear (505) meshes with the rack ring (506). The drive assembly also includes a connecting shaft (508). One end of the connecting shaft (508) is rotatably connected to the axis of the drive gear (505), and the other end is rotatably connected to the end of the plunger (501) away from the movable cavity (401).

4. A self-lubricating linkage lock according to claim 3, characterized in that: The drive mechanism (5) also includes a limiting piece (507). The plunger (501) passes through the limiting piece (507) and is movably engaged with the movable cavity (401). A connector (509) is fixedly connected to the plunger (501). The other end of the connector (509) is rotatably connected to the connecting shaft (508).

5. A self-lubricating linkage lock according to claim 4, characterized in that: The annular fixed disk (502) is concentrically arranged with the gear ring, and the gear ring is located on the side of the annular fixed disk (502) away from the motor (500).

6. A self-lubricating linkage lock according to claim 1, characterized in that: A first check valve (510) is provided at the connection between the active chamber (401) and the storage chamber (400) for allowing liquid in the storage chamber (400) to flow unidirectionally into the active chamber (401), and a second check valve (511) is provided on the outlet pipe (6) for allowing liquid in the active chamber (401) to flow unidirectionally into the outlet pipe (6).

7. A self-lubricating linkage lock according to claim 1, characterized in that: The liquid storage box (4) is provided with an injection hole, which is connected to the liquid storage cavity (400).

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