Bidirectional synchronization locking mechanism

Abstract

The utility model discloses a kind of two-way synchronous locking mechanism, including driving motor, speed reducer, gear assembly, first mounting seat, second mounting seat, transmission long shaft, left side lock head, right side lock head, two guide sleeves, two guide pins.The utility model connects left side lock head and right side lock head together by transmission long shaft, under the driving of driving motor or hand wheel, the synchronous extension or retraction of left side lock head and right side lock head is realized, the precision locking and unlocking for load are realized;And the two-way synchronous locking mechanism, carrying capacity is larger, locking precision is high, adjustment is convenient, structure is compact, safe and reliable, it is convenient to maintain, it is smooth to run without jam, can be used for the precision locking and position keeping of multiple loads.In addition, the transmission of left side lock head and right side lock head is mainly threaded cooperation output, tight cooperation, error deviation or fault is not prone to under high-frequency vibration or complex working condition.

Description

Technical Field

[0001] This utility model relates to the field of locking mechanism technology, and in particular to a bidirectional synchronous locking mechanism. Background Technology

[0002] A precision locking mechanism is a device or system used to achieve high-precision fixing or locking. Its design goal is to ensure that an object or component remains stable, accurate, and immovable in a specific position. With the rapid development of technology, precision locking mechanisms have been widely used in fields such as optics, mechanical engineering, aerospace, and medical equipment.

[0003] In existing technologies, precision locking mechanisms mainly include mechanical locking devices, pneumatic locking devices, and hydraulic locking devices. With the development of intelligent and automated technologies, the performance requirements for precision locking mechanisms are becoming increasingly stringent. These devices achieve the fixation of target objects or components through different methods, but some significant problems still exist: Complex structure and large size: Traditional locking devices usually adopt a separate design, and the connection between the functional modules is complicated. This not only occupies a lot of space, but also makes installation and debugging difficult, which can easily increase manufacturing costs and maintenance difficulties.

[0004] Inconvenient adjustment: Most traditional locking devices only support a single operating mode (such as electric only or manual only), and cannot flexibly switch operating modes in certain special scenarios (such as when the power supply is interrupted), resulting in inconvenience in use.

[0005] Insufficient stability: Some locking devices are prone to error deviation or failure under high-frequency vibration or complex working conditions, making it difficult to maintain long-term stability and causing the fixed position to shift.

[0006] Therefore, it is necessary to develop a bidirectional synchronous locking mechanism to solve the above problems. Utility Model Content

[0007] The purpose of this invention is to design a bidirectional synchronous locking mechanism to solve the above-mentioned problems.

[0008] This utility model achieves the above objectives through the following technical solutions: A two-way synchronous locking mechanism includes: Drive motor; Reducer; both the drive motor and the reducer are fixed in position; Gear assembly; the gear assembly includes a first gear and a second gear; the shaft of the drive motor is connected to the input end of the reducer; the output end of the reducer is connected to the first gear, and the second gear is positioned directly above the first gear and meshes with the first gear; First mounting base; Second mounting base; both the first mounting base and the second mounting base are vertically arranged; The transmission shaft is mounted in the middle of the first mounting base and the second mounting base respectively through two bearings; the left thread of the transmission shaft is right-handed and the right thread is left-handed. Left lock; The right lock head; both the left and right lock heads are formed into a circular cylindrical structure. The inner walls of both the left and right lock heads are provided with a first thread. The side walls of both the left and right lock heads are provided with guide grooves along their length. The left lock head is engaged with the left thread of the transmission shaft, and the right lock head is engaged with the right thread of the transmission shaft. Two guide sleeves; both guide sleeves are formed into a circular cylindrical structure, and the inner diameter of the guide sleeves is slightly larger than the outer diameter of the left lock head and the right lock head. The two guide sleeves are respectively fitted on the outside of the left lock head and the right lock head. Two guide pins; the two guide pins are respectively radially installed on the inner walls of the two guide sleeves, and the two guide pins are respectively inserted into the guide grooves of the left lock head and the right lock head, and the two guide pins are respectively guided and engaged with the two guide grooves.

[0009] Specifically, the bidirectional synchronous locking mechanism also includes a base, and the drive motor, reducer, two guide sleeves, first mounting base, and second mounting base are all mounted on the base.

[0010] Furthermore, the bidirectional synchronous locking mechanism also includes a locking switch assembly, an unlocking switch assembly, and a switch sensing block. The switch sensing block is radially mounted on the outer wall of the right lock head near the second gear. Both the unlocking switch assembly and the locking switch assembly are proximity switches. Both the unlocking switch assembly and the locking switch assembly are mounted below the right lock head. The unlocking switch assembly is positioned close to the second gear, while the locking switch assembly is positioned away from the second gear. The switch sensing block engages with the unlocking switch assembly and the locking switch assembly respectively.

[0011] Furthermore, the bidirectional synchronous locking mechanism also includes an outer cover, which covers and shields the guide sleeve, the left lock head, the transmission shaft, the right lock head, the first gear, the second gear, the first mounting base, the second mounting base, the drive motor, the reducer, the locking switch assembly, the unlocking switch assembly, and the switch sensing block. Through holes are provided at both ends of the outer cover for the extension of the left and right lock heads.

[0012] Furthermore, the bidirectional synchronous locking mechanism also includes two protective screw sleeves. The first thread is provided on the inner wall of the first end of the left lock head and the right lock head, which are opposite each other. The second thread is provided on the inner wall of the second end of the left lock head and the second end of the right lock head. The two protective screw sleeves are respectively engaged with the threads on the inner wall of the second end of the left lock head and the second end of the right lock head.

[0013] Preferably, the bidirectional synchronous locking mechanism also includes a handwheel. Hexagonal grooves are provided on both ends of the transmission shaft. The handwheel includes a connecting rod and a rocker wheel. The middle part of the rocker wheel is connected to the first end of the connecting rod. A hexagonal head is provided on the second end of the connecting rod. After removing a protective nut, the hexagonal head of the handwheel extends into the left or right lock head and connects with the hexagonal groove at one end of the transmission shaft.

[0014] The beneficial effects of this utility model are as follows: This invention connects the left and right lock heads together via a long transmission shaft. Driven by a motor or handwheel, the left and right lock heads extend or retract synchronously, achieving precise locking and unlocking of the load. This bidirectional synchronous locking mechanism boasts a large load-bearing capacity, high locking accuracy, convenient adjustment, compact structure, safety and reliability, ease of maintenance, and smooth, jam-free operation. It can be used for precise locking and position holding of various loads. Furthermore, the transmission between the left and right lock heads primarily utilizes a threaded engagement, ensuring a tight fit and minimizing the risk of error deviation or malfunction under high-frequency vibration or complex operating conditions. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is a three-dimensional structural diagram of the handwheel in this utility model; Figure 3 This is a three-dimensional structural diagram of the present invention with the outer cover removed; Figure 4 This is a sectional view (front view) of this utility model. Figure 5 This is a sectional view (top view) of the present invention. Figure 6 This is a sectional view (front view) of the present invention, showing the handwheel connected after removing the protective screw sleeve on one side; Figure 7 This is a schematic diagram of the cooperation structure between the right-side lock head and the guide sleeve in this utility model; Figure 8 This is a schematic diagram of the load structure in this utility model; Figure 9 This is a schematic diagram of the load locking structure in this utility model.

[0016] In the diagram: 1. Base, 2. Drive motor, 3. Reducer, 4. Gear assembly, 5. Transmission shaft, 6. Left lock head, 7. Right lock head, 8. Guide sleeve, 9. Locking switch assembly, 10. Unlocking switch assembly, 11. Switch sensing block, 12. Protective screw sleeve, 13. Guide pin, 14. Outer cover, 15. Handwheel, 16. Load, 17. Locking block, 18. Locking hole, 19. Guide groove, 20. First gear, 21. Second gear, 22. First mounting base, 23. Second mounting base. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. The components of the embodiments of this utility model described and listed herein can typically be arranged and designed in various different configurations.

[0018] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0019] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0020] In the description of this utility model, it should be understood that the terms "upper", "lower", "inner", "outer", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use, or the orientation or positional relationship that is commonly understood by those skilled in the art. They are only used to facilitate the description of this utility model and to simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0021] Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0022] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, terms such as "set" and "connection" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0023] The specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0024] like Figure 1 and 3 As shown in Figures 4, 5, and 7, the bidirectional synchronous locking mechanism includes: Drive motor 2; Reducer 3; both drive motor 2 and reducer 3 are fixed in position; Gear assembly 4; Gear assembly 4 includes a first gear 20 and a second gear 21; The shaft of the drive motor 2 is connected to the input end of the reducer 3; The output end of the reducer 3 is connected to the first gear 20, and the second gear 21 is positioned directly above the first gear 20 and meshes with the first gear 20; First mounting base 22; Second mounting base 23; both the first mounting base 22 and the second mounting base 23 are vertically arranged; The transmission shaft 5 is mounted in the middle of the first mounting base 22 and the second mounting base 23 respectively through two bearings; the left thread of the transmission shaft 5 is right-handed and the right thread is left-handed (the threads at both ends of the transmission shaft 5 are in opposite directions). Left lock 6; The right lock head 7; the left lock head 6 and the right lock head 7 are both formed into a circular cylindrical structure. The inner wall of the left lock head 6 and the right lock head 7 are provided with a first thread. The side wall of the left lock head 6 and the right lock head 7 are provided with a guide groove 19 along their length direction. The left lock head 6 is engaged with the left thread of the transmission shaft 5, and the right lock head 7 is engaged with the right thread of the transmission shaft 5. Two guide sleeves 8; both guide sleeves 8 are formed into a circular cylindrical structure, and the inner diameter of the guide sleeves 8 is slightly larger than the outer diameter of the left lock head 6 and the right lock head 7. The two guide sleeves 8 are respectively fitted on the outside of the left lock head 6 and the right lock head 7. Two guide pins 13 are radially installed on the inner walls of the two guide sleeves 8 respectively. The two guide pins 13 are inserted into the guide grooves 19 of the left lock head 6 and the right lock head 7 respectively, and the two guide pins 13 are guided and engaged with the two guide grooves 19 respectively.

[0025] In this embodiment, because the guide pin 13 on the guide sleeve 8 has an axial guiding and limiting effect on the left lock head 6 and the right lock head 7, the threaded engagement between the transmission shaft 5 and the left lock head 6 and the right lock head 7 will not cause the left lock head 6 and the right lock head 7 to rotate, but will instead move linearly along the axial direction of the transmission shaft 5.

[0026] like Figure 1 and 4 As shown, the bidirectional synchronous locking mechanism also includes a base 1, a drive motor 2, a reducer 3, two guide sleeves 8, a first mounting seat 22, and a second mounting seat 23, all of which are mounted on the base 1.

[0027] like Figure 3-5 As shown, the bidirectional synchronous locking mechanism also includes a locking switch assembly 9, an unlocking switch assembly 10, and a switch sensing block 11. The switch sensing block 11 is radially mounted on the outer wall of the right lock head 7 near the second gear 21. Both the unlocking switch assembly 10 and the locking switch assembly 9 are proximity switches. Both the unlocking switch assembly 10 and the locking switch assembly 9 are mounted below the right lock head 7. The unlocking switch assembly 10 is positioned close to the second gear 21, while the locking switch assembly 9 is positioned away from the second gear 21. The switch sensing block 11 engages with the unlocking switch assembly 10 and the locking switch assembly 9 respectively.

[0028] like Figure 1 and 4 As shown, the bidirectional synchronous locking mechanism also includes an outer cover 14, which covers and shields the guide sleeve 8, the left lock head 6, the transmission shaft 5, the right lock head 7, the first gear 20, the second gear 21, the first mounting base 22, the second mounting base 23, the drive motor 2, the reducer 3, the locking switch assembly 9, the unlocking switch assembly 10, and the switch sensing block 11. Through holes are provided at both ends of the outer cover 14 for the extension of the left lock head 6 and the right lock head 7.

[0029] like Figure 4 As shown, the bidirectional synchronous locking mechanism also includes two protective screw sleeves 12. The first thread is provided on the inner wall of the first end opposite to the left lock head 6 and the right lock head 7. The second thread is provided on the inner wall of the second end of the left lock head 6 and the second end of the right lock head 7. The two protective screw sleeves 12 are respectively engaged with the threads on the inner wall of the second end of the left lock head 6 and the second end of the right lock head 7.

[0030] like Figure 2 and 6 As shown, the bidirectional synchronous locking mechanism also includes a handwheel 15. Hexagonal grooves are provided on both ends of the transmission shaft 5. The handwheel 15 includes a connecting rod and a rocker wheel. The middle part of the rocker wheel is connected to the first end of the connecting rod. A hexagonal head is provided on the second end of the connecting rod. After removing a protective nut 12, the hexagonal head of the handwheel extends into the left lock head 6 or the right lock head 7 and connects with the hexagonal groove at one end of the transmission shaft 5.

[0031] like Figure 8 As shown, the load 16 is not locked at this time. Two locking blocks 17 are provided at the bottom of the load 16. The two locking blocks 17 are parallel to each other, and the distance between the two locking blocks 17 is greater than the distance between the second end of the left lock head 6 and the second end of the right lock head 7 in the unlocked state. Each locking block 17 has a locking hole 18, and the two locking holes 18 are coaxially arranged. Figure 9 As shown, after the load 16 moves, the two locking blocks 17 are positioned on either side of the left locking head 6 and the right locking head 7, respectively. Then, the drive motor 2 works, which drives the first gear 20 to rotate through the reducer 3. The first gear 20 drives the second gear 21 to rotate, and the rotation of the second gear 21 drives the transmission shaft 5 to rotate. The transmission shaft 5 then drives the left locking head 6 and the right locking head 7 to move to the sides. Finally, the second end of the left locking head 6 and the second end of the right locking head 7 are respectively locked into the locking holes 18 of the two locking blocks 17, thus locking the load 16. At this time, the switch sensing block 11 is sensed by the locking switch assembly 9 after moving, and the motor stops working. When unlocking is required, the motor reverses, the left locking head 6 and the right locking head 7 retract, and the right locking head 7 drives the switch sensing block 11 to move until it is sensed by the unlocking switch assembly 10. Then, the motor stops working, thus unlocking the load 16. When the motor malfunctions, any protective sleeve 12 can be removed. The outer end face of the protective sleeve 12 still has a hexagonal groove. The protective sleeve 12 can be removed by handwheel. Then, the hexagonal head on the handwheel 15 is inserted into the lock head on the side where the protective sleeve has been removed until it is connected and engaged with the hexagonal groove at one end of the transmission shaft 5. Then, the handwheel 15 is rotated to directly drive the transmission shaft 5, thereby enabling the unlocking or locking operation of the load 16.

[0032] The above are merely preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.

Claims

1. A bidirectional synchronous locking mechanism, characterized in that, include: Drive motor; reducer; Both the drive motor and the reducer are fixed in position; Gear assembly; The gear assembly includes a first gear and a second gear; the shaft of the drive motor is connected to the input end of the reducer; the output end of the reducer is connected to the first gear, and the second gear is positioned directly above the first gear and meshes with the first gear; First mounting base; Second mounting base; both the first mounting base and the second mounting base are vertically arranged; The transmission shaft is mounted in the middle of the first mounting base and the second mounting base respectively through two bearings; the left thread of the transmission shaft is right-handed and the right thread is left-handed. Left lock; The right lock head; both the left and right lock heads are formed into a circular cylindrical structure. The inner walls of both the left and right lock heads are provided with a first thread. The side walls of both the left and right lock heads are provided with guide grooves along their length. The left lock head is engaged with the left thread of the transmission shaft, and the right lock head is engaged with the right thread of the transmission shaft. Two guide sleeves; both guide sleeves are formed into a circular cylindrical structure, and the inner diameter of the guide sleeves is slightly larger than the outer diameter of the left lock head and the right lock head. The two guide sleeves are respectively fitted on the outside of the left lock head and the right lock head. Two guide pins; the two guide pins are respectively radially installed on the inner walls of the two guide sleeves, and the two guide pins are respectively inserted into the guide grooves of the left lock head and the right lock head, and the two guide pins are respectively guided and engaged with the two guide grooves.

2. The bidirectional synchronous locking mechanism according to claim 1, characterized in that, The bidirectional synchronous locking mechanism also includes a base, and the drive motor, reducer, two guide sleeves, first mounting base, and second mounting base are all mounted on the base.

3. The bidirectional synchronous locking mechanism according to claim 2, characterized in that, The bidirectional synchronous locking mechanism also includes a locking switch assembly, an unlocking switch assembly, and a switch sensing block. The switch sensing block is radially mounted on the outer wall of the right lock head near the second gear. Both the unlocking switch assembly and the locking switch assembly are proximity switches. Both the unlocking switch assembly and the locking switch assembly are mounted below the right lock head. The unlocking switch assembly is positioned close to the second gear, while the locking switch assembly is positioned away from the second gear. The switch sensing block engages with the unlocking switch assembly and the locking switch assembly respectively.

4. The bidirectional synchronous locking mechanism according to claim 3, characterized in that, The bidirectional synchronous locking mechanism also includes an outer cover, which covers and shields the guide sleeve, the left lock head, the transmission shaft, the right lock head, the first gear, the second gear, the first mounting base, the second mounting base, the drive motor, the reducer, the locking switch assembly, the unlocking switch assembly, and the switch sensing block. Through holes are provided at both ends of the outer cover for the extension of the left and right lock heads.

5. The bidirectional synchronous locking mechanism according to claim 3, characterized in that, The bidirectional synchronous locking mechanism also includes two protective screw sleeves. The first thread is provided on the inner wall of the first end of the left lock head and the right lock head, which are opposite each other. The second thread is provided on the inner wall of the second end of the left lock head and the second end of the right lock head. The two protective screw sleeves are respectively engaged with the threads on the inner wall of the second end of the left lock head and the second end of the right lock head.

6. The bidirectional synchronous locking mechanism according to claim 5, characterized in that, The bidirectional synchronous locking mechanism also includes a handwheel. Hexagonal grooves are provided on both ends of the transmission shaft. The handwheel includes a connecting rod and a rocker wheel. The middle part of the rocker wheel is connected to the first end of the connecting rod. A hexagonal head is provided on the second end of the connecting rod. After removing a protective nut, the hexagonal head of the handwheel extends into the left or right lock head and connects with the hexagonal groove at one end of the transmission shaft.

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