A cipher disk brake

Abstract

The utility model relates to a kind of password disc brake locks, including the '' type base and upper cover, the lock cylinder sleeve is integrally formed on the top of base, the lock cylinder sleeve is slidably provided with the lock cylinder of lock bar, the spring is equipped in the bottom of lock cylinder sleeve.The lock bar locking mechanism and element shell are equipped on the base, sealing ring is equipped between element shell and base, upper cover holds down button shell and is fixed with base.Sealing sleeve is covered on the circuit board between button shell and element shell, hard button is integrally formed on elastic sealing sleeve, and button bottom boss is supported to touch switch.Locking time presses down lock cylinder, and lock bar enters lock hole, and it is locked by lock bar locking mechanism;When unlocking, input password, motor drives lock bolt rod to exit socket, and spring pushes lock cylinder and lock bar to rebound.The lock structure is compact, and through layer-by-layer compression assembly and integrated button sealing sleeve, excellent waterproof and dustproof performance is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of disc brake locks, in particular to a password disc brake lock. Background Art

[0002] At present, the disc brake locks used for vehicles such as motorcycles and electric vehicles are locked by passing a lock rod through the holes on the brake disc. Among them, the password disc brake lock is favored by users because it does not need to carry a mechanical key. However, there are still some deficiencies in the structural design of some existing password disc brake locks. For example, the housing of the lock is usually simply assembled by multiple split parts. In the harsh outdoor environment, rainwater and dust are very easy to penetrate into the interior from the seams between the parts, causing short circuits of electronic components and corrosion of mechanical structures. Secondly, the key part usually uses independent keys to cooperate with the openings on the housing, and each key requires separate sealing treatment. Not only is the assembly process complex, but after long-term use, the gap between the key and the housing is the main water inlet path, and the sealing reliability is poor. Content of the Utility Model

[0003] The utility model provides a password disc brake lock with good sealing performance and reliable and stable structure, and solves the above problems existing in the prior art during use.

[0004] The technical solution of the utility model is realized as follows: A password disc brake lock includes a base and an upper cover. The base is in a "C" shape, so that a locking groove that is open to the right and penetrates through from front to back is formed inside the base. A lock hole is provided on the lower side of the base on the right side of the locking groove. A lock core sleeve is integrally formed on the upper right side of the base. A lock core is slidably fitted up and down inside the lock core sleeve. A lock rod is integrally formed at the lower end of the lock core. A lock rod hole is formed on the base and penetrates through to the bottom of the lock core sleeve and into the locking groove and corresponds to the lock hole. The lock rod hole is used for the lock rod to pass through and enter the locking groove. A spring for pushing the lock core upward is provided at the bottom of the lock core sleeve. A lock rod locking mechanism is provided on the upper side of the base on the left side of the lock core sleeve. The lock rod locking mechanism is used to lock the lock rod when it enters the lock hole. An element shell is provided on the base on the left side of the lock rod locking mechanism. A sealing ring is provided between the element shell and the base. A key shell is covered on the element shell. A circuit board is provided between the element shell and the key shell. A number of keys are movably provided on the key shell. Tactile switches are provided on the circuit board corresponding to each key. An elastic sealing sleeve is covered on the upper side of the circuit board. The keys are integrally formed on the elastic sealing sleeve. A convex block that abuts against the upper side of the touch switch is provided at the bottom of the key.

[0005] Preferably, the lower side of the button housing has a plurality of connecting posts integrally formed, each connecting post having a threaded hole, the connecting post passing through an elastic sealing sleeve and abutting against the circuit board, the circuit board having a through hole corresponding to the threaded hole, the elastic sealing sleeve including a rim extending to the lower edge of the circuit board, the rim being pressed between the component housing and the circuit board.

[0006] Preferably, the tactile switches are arranged in four columns from left to right on the circuit board, with three switches in each column. LED beads are provided between adjacent tactile switches in each column. The number and position of the buttons correspond to the tactile switches. The elastic sealing sleeve has a switch slot on the side facing the circuit board to accommodate each of the contact switches. There are conductive slots between the tactile switches in the same column to accommodate LED beads.

[0007] Preferably, the component housing contains a battery, and the component housing has a USB module electrically connected to the battery on the left side facing the top cover. The left side of the top cover has a USB charging port corresponding to the USB module, and the USB charging port has a sealing plug. The base has a buzzer inside the component housing.

[0008] Preferably, the locking mechanism includes a driver, a latch rod, a latch spring, a latch mounting base, and a motor base. The base has a mounting groove for accommodating the latch mounting base. The motor base is pressed against the latch mounting base and fixedly connected to the base. The latch rod moves left and right in conjunction with the latch mounting base. The base has a latch opening extending through to the lock rod opening. The latch opening allows the latch rod to move left and right within it. The latch spring is disposed within the latch mounting base and abuts against the left end of the latch rod. The driver drives the latch rod to move to the right. A slot is provided on the left side of the lock rod. When the lower end of the lock rod enters the lock hole, the slot allows the latch rod to be inserted.

[0009] Preferably, a movable frame is fixedly connected to the locking tongue rod, and a contact switch is fixedly connected to the motor base. When the locking tongue rod is inserted into the socket, the movable frame presses against the contact switch.

[0010] Preferably, a sliding limiting port is provided on the side wall of the lock cylinder sleeve, and a limiting screw that is movably engaged in the limiting port is threaded onto the lock cylinder.

[0011] In summary, the beneficial effects of this utility model are as follows: 1. The upper side of the circuit board is covered with an elastic sealing sleeve, and multiple rigid buttons are integrally molded onto this soft sealing sleeve. This design cleverly transforms the dynamic sealing problem of traditional multiple independent buttons into a static seal between a single sealing sleeve and the housing (achieved through button housing pressure). The elastic sealing sleeve itself can seal the tactile switch on the circuit board, and the button abuts the tactile switch through the protrusion on its bottom. While ensuring sensitive operation, it completely eliminates the possibility of water and dust entering the circuit board from the button gaps, greatly improving the IP protection level. Furthermore, the integral molding of the button and the elastic sealing sleeve reduces the assembly process of independent sealing rings and independent buttons, lowering manufacturing costs. In terms of overall assembly, the top cover presses against the edge of the button housing and is fixed with the base screws. At the same time, the lower end of the button housing presses against the component housing, and the lower end of the component housing presses against the base, forming a layered pressing assembly structure of "top cover-button housing-component housing-base". Together with the sealing ring between the component housing and the base, a reliable static sealing path is constructed. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the structure of the present invention in the locked state; Figure 2 for Figure 1 A schematic diagram of the cross-sectional structure; Figure 3 This is a schematic diagram of the structure of the present invention in the unlocked state; Figure 4 for Figure 3 A schematic diagram of the cross-sectional structure; Figure 5 for Figure 4 A magnified view of a portion of point A in the middle; Figure 6 This is a schematic diagram of the structure of this utility model after the top cover is removed; Figure 7 This is a schematic diagram of the structure of this utility model after removing the top cover and button shell; Figure 8 This is a schematic diagram of the structure of the present invention after removing the top cover, button shell, and elastic sealing sleeve; Figure 9 This is an exploded view of the key shell, elastic sealing sleeve, and circuit board in this utility model. Figure 10 For the present utility model in Figure 8Schematic diagram of the structure after removing the circuit board and component housing part on the basis of Figure 11 This utility model is based on Figure 10 Schematic diagram of the structure after removing the motor base on the basis of Figure 12 This utility model is based on Figure 11 Schematic diagram of the structure after removing the motor and contact switch on the basis of Figure 13 Schematic diagram of the structure of the motor base, motor and contact switch in this utility model.

[0014] In the figure: 1. Base; 11. Locking groove; 12. Lock hole; 13. Lock core sleeve; 131. Sliding limit port; 14. Lock rod port; 15. Mounting seat mounting groove; 16. Lock tongue port; 2. Upper cover; 21. USB charging port; 22. Sealing plug; 3. Lock core; 31. Lock rod; 311. Socket; 32. Spring; 33. Limit screw; 4. Component housing; 41. Sealing ring; 5. Button housing; 51. Connecting column; 511. Threaded hole; 6. Circuit board; 61. Tactile switch; 62. Through hole; 63. Light-emitting diode; 71. Button; 711. Protrusion; 72. Elastic sealing sleeve; 721. Wrapping edge; 722. Switch groove; 723. Conductive groove; 81. Battery; 82. USB module; 83. Buzzer; 84. Contact switch; 91. Motor; 92. Eccentric shaft; 93. Lock tongue rod; 931. Positioning groove; 94. Lock tongue spring; 95. Lock tongue mounting seat; 96. Motor base; 97. Movable frame. Detailed implementation manners

[0015] Next, in combination with the attached drawings in the embodiments of this utility model Figure 1-13 the technical solutions in the embodiments of this utility model will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of this utility model, rather than all the embodiments. Based on the embodiments in this utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of this utility model.

[0016] Embodiment: As Figures 1 to 13 shown, this utility model discloses a password disc brake lock, the overall structure of which is reasonably arranged and has excellent sealing performance, and is particularly suitable for vehicles such as motorcycles and electric vehicles that need to be used in outdoor environments. The password disc brake lock mainly includes a base 1 and an upper cover 2. The base 1 is integrally in a "U" shape, thereby forming a locking groove 11 that is open to the right and penetrates through the front and back inside the base 1. The locking groove 11 is used to clamp the vehicle brake disc during use and allows the lock rod 31 to pass through the hole on the brake disc. The base 1 is provided with a lock hole 12 on the lower side surface靠右 of the locking groove 11.

[0017] A lock cylinder sleeve 13 is integrally formed on the upper right side of the base 1. The lock cylinder sleeve 13 is cylindrical and its axis is arranged vertically. A lock cylinder 3 is slidably fitted inside the lock cylinder sleeve 13, and a lock rod 31 is integrally formed at the lower end of the lock cylinder 3. A lock rod opening 14 is provided on the base 1, which penetrates from the bottom of the lock cylinder sleeve 13 into the locking groove 11 and corresponds to the lock hole 12. The lock rod opening 14 is used for the lock rod 31 to pass downward and enter the locking groove 11 and the lock hole 12. A spring 32 is installed at the bottom of the lock cylinder sleeve 13. The spring 32 always pushes the lock cylinder 3 upward, so that the lock cylinder 3 and the lock rod 31 are kept in the upper position (unlocked position) when no external force is applied.

[0018] A locking mechanism is provided on the upper side of the base 1 on the left side of the lock cylinder sleeve 13. This mechanism is used to lock the locking rod 31 when it enters the lock hole 12 downwards, preventing it from springing back. Further on the left side of the locking mechanism, a component housing 4 is provided on the base 1. The component housing 4 is used to house the battery 81 and other electronic components. A sealing ring 41 is sandwiched between the component housing 4 and the base 1. This sealing ring 41 is preferably made of silicone or nitrile rubber to form a first static seal between the two.

[0019] The top of the component housing 4 is covered by the button housing 5. The top cover 2 has an opening for the button housing 5 to be exposed, but the top cover 2 itself does not directly press against the entire upper surface of the button housing 5, but rather presses against the edge of the button housing 5. Then, the top cover 2 is fixedly connected to the base 1 by screws. When the top cover 2 and the base 1 are locked, the top cover 2 presses down on the edge of the button housing 5, the lower end of the button housing 5 presses down on the component housing 4, and the lower end of the component housing 4 presses down on the base 1 and its sealing ring 41. This forms a layered pressing assembly structure of "top cover 2 → button housing 5 → component housing 4 → base 1 sealing ring 41", ensuring that all mating surfaces are in an effective pressing state and achieving a good overall seal.

[0020] A circuit board 6 is disposed between the button housing 5 and the component housing 4. Multiple buttons 71 are movably disposed on the button housing 5, and a tactile switch 61 is disposed on the circuit board 6 corresponding to each button 71. To completely solve the waterproofing problem in the button 71 area, this application covers the upper side of the circuit board 6 with an elastic sealing sleeve 72. The elastic sealing sleeve 72 is made of a soft elastic material, such as silicone rubber or thermoplastic elastomer. The multiple buttons 71 are made of a hard material, such as ABS, PC, or POM plastic. These hard buttons 71 and the soft elastic sealing sleeve 72 below are integrally molded using a two-stage injection molding process (two-color injection molding), or an insert molding process: first, the hard buttons 71 are placed as inserts into the mold, and then the soft elastic material is injected to form the elastic sealing sleeve 72, so that the buttons 71 and the elastic sealing sleeve 72 achieve a seamless molecular-level bond at the material interface. After being integrally molded, each button 71 has a downwardly protruding bump 711 at its bottom, which is used to abut against the upper side of the corresponding tactile switch 61 on the circuit board 6. When the user presses the hard button 71, the force is transmitted to the tactile switch 61 through the bump 711 to trigger the switch; while the elastic sealing sleeve 72 itself keeps completely covering the circuit board 6 and all the tactile switches 61, preventing water and dust from entering the interior from the gaps in the button 71.

[0021] In a preferred embodiment, the lower side of the button housing 5 is integrally formed with multiple connecting posts 51, each with a threaded hole 511. These connecting posts 51 pass through the elastic sealing sleeve 72 and abut against the upper surface of the circuit board 6, thereby providing precise vertical positioning for the circuit board 6. The position where the connecting posts 51 pass through the elastic sealing sleeve 72 adopts an interference fit design, that is, the diameter of the hole on the elastic sealing sleeve 72 corresponding to the connecting post 51 is slightly smaller than the outer diameter of the connecting post 51. The deformation of the elastic material achieves local tight compression, preventing moisture from seeping in along the surface of the connecting post 51. The circuit board 6 has through holes 62 corresponding to the threaded holes 511 of the connecting posts. After the screw passes through the through holes 62 of the circuit board 6, it is screwed into the threaded holes 511 of the connecting posts, fixing the button housing 5 and the circuit board 6 together. At the same time, the elastic sealing sleeve 72 also includes a edging 721 extending to the lower edge of the circuit board 6. The edging 721 is pressed between the component housing 4 and the circuit board 6, forming a seal on the lower edge of the circuit board 6.

[0022] Regarding the layout of the buttons 71 and tactile switches 61, this application preferably adopts a twelve-button scheme. Specifically, the tactile switches 61 are arranged in four columns from left to right on the circuit board 6, with three tactile switches 61 in each column. The circuit board 6 also has LED beads 63 between two adjacent tactile switches 61 in each column for backlighting the buttons 71. The number and position of the buttons 71 correspond to the tactile switches 61, also in four columns and three rows, totaling twelve, corresponding to the numbers 0-9, as well as the asterisk and hash keys. The elastic sealing sleeve 72 has multiple switch slots 722 on the side (i.e., the lower side) facing the circuit board 6, each switch slot 722 accommodating one tactile switch 61. Simultaneously, between the tactile switches 61 in the same column, the elastic sealing sleeve 72 also has conductive grooves 723 for accommodating the LED beads 63. The position where the connecting post 51 passes through the elastic sealing sleeve 72 is isolated from these switch slots 722 and conductive grooves 723, and is not connected, thereby preventing the formation of a leakage channel at the fixing point.

[0023] For easy charging and to provide sound feedback, a battery 81 is housed inside the component housing 4. A USB module 82, electrically connected to the battery 81, is located on the left side of the component housing 4 facing the top cover 2. A USB charging port 21, corresponding to the USB module 82, is located on the left side of the top cover 2. The USB charging port 21 has a sealing plug 22, preferably made of silicone, which can be opened or removed. A buzzer 83 is also installed inside the component housing 4 in the base 1 to emit a prompt or alarm sound.

[0024] The locking mechanism is described in detail below. This mechanism includes a driver, a latch rod 93, a latch spring 94, a latch mounting base 95, and a motor mount 96. The base 1 has a mounting groove 15 for accommodating the latch mounting base 95. The motor mount 96 is pressed against the latch mounting base 95 and fixedly connected to the base 1 by screws. The latch rod 93 moves left and right within the latch mounting base 95. The base 1 has a latch opening 16 extending through to the latch rod opening 14, allowing the latch rod 93 to move left and right within it. The latch spring 94 is located within the latch mounting base 95, with one end abutting the left side of the latch mounting base 95 and the other end abutting the left end of the latch rod 93, consistently applying a rightward thrust to the latch rod 93. The driver is a small motor 91, whose output shaft is connected to an eccentric shaft 92. A positioning groove 931 is provided on the upper side of the locking tongue rod 93, and the eccentric shaft 92 is inserted into the positioning groove 931. When the motor 91 rotates, the eccentric shaft 92 rotates, and drives the locking tongue rod 93 to move to the left (i.e., out of the locking rod's insertion port 311) through the positioning groove 931, overcoming the force of the locking tongue spring 94. An insertion port 311 is provided on the left side of the locking rod 31. When the lower end of the locking rod 31 is fully inserted into the lock hole 12, the insertion port 311 is exactly at the same height as the locking tongue rod 93. The locking tongue rod 93 is pushed to the right by the locking tongue spring 94 and inserted into the insertion port 311 to achieve locking.

[0025] To detect the locked state, a movable bracket 97 is fixedly connected to the latch 93, and a contact switch 84 is fixedly connected to the motor mount 96. Both the contact switch 84 and the motor 91 are electrically connected to the circuit board 6. When the latch 93 is inserted into the socket 311 to the right, the movable bracket 97 moves to the right with the latch 93 and presses against the contact switch 84, thereby outputting a "locked" signal. When the latch 93 is withdrawn to the left, the movable bracket 97 disengages from the contact switch 84, and the signal is disconnected.

[0026] Furthermore, a sliding limiting port 131 in the vertical direction is provided on the side wall of the lock cylinder sleeve 13. A limiting screw 33 is threaded onto the lock cylinder 3, and the outer end of the limiting screw 33 is movably engaged within the sliding limiting port 131. By engaging the limiting screw 33 with the upper and lower stops of the sliding limiting port 131, the maximum downward stroke and maximum upward stroke of the lock cylinder 3 can be precisely limited, preventing the lock cylinder 3 from disengaging or excessively compressing the spring 32.

[0027] The working process of the combination disc brake lock described in this application is as follows: When locking, the user presses down on the lock cylinder 3 against the force of the spring 32, and the locking rod 31 passes through the locking rod opening 14 and the brake disc hole and enters the lock hole 12. When the locking rod 31 descends to the insertion port 311 and aligns with the latch rod 93, the latch rod 93 is automatically inserted into the insertion port 311 under the push of the latch spring 94, and the lock cylinder 3 cannot spring back, thus completing the locking. When unlocking, the user enters the correct password through the button 71, the circuit board 6 controls the motor 91 to be powered on, the motor 91 drives the eccentric shaft 92 to rotate, and drives the latch rod 93 to the left to exit the insertion port 311; thereafter, the lock cylinder 3 and the locking rod 31 spring back upward under the action of the spring 32, the locking rod 31 exits the brake disc hole, and the unlocking is completed. Subsequently, motor 91 resets, eccentric shaft 92 rotates, and latch rod 93 moves to the right under the action of spring 32. However, since locking rod 31 is already in the upper position, the right end of latch rod 93 rests against the cylindrical surface of locking rod 31 (rather than inside the socket 311), and is in a standby state. When the lock cylinder 3 is pressed down again, latch rod 93 will automatically re-insert into socket 311.

[0028] It should also be noted that the terms used in this utility model, such as "front", "rear", "vertical", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this utility model.

[0029] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A coded disc brake lock, comprising a base and an upper cover. The base is in a "C" shape, so as to form a locking groove that opens to the right and penetrates through the front and rear in the base. A lock hole is provided in the lower side surface of the base on the right side of the locking groove. It is characterized in that: A lock cylinder sleeve is integrally formed on the upper right side of the base. A lock cylinder slides vertically within the lock cylinder sleeve. A lock rod is integrally formed at the lower end of the lock cylinder. A lock rod opening is provided on the base, extending to the bottom of the lock cylinder sleeve and penetrating into the locking groove, corresponding to the lock hole. The lock rod opening is used for the lock rod to pass through and enter the locking groove. A spring is provided at the bottom of the lock cylinder sleeve for pushing the lock cylinder upward. A lock rod locking mechanism is provided on the upper side of the base, located on the left side of the lock cylinder sleeve. The lock rod locking mechanism is used to lock the lock rod when it enters the lock hole. A component shell is provided on the base, located to the left of the lock rod locking mechanism. A sealing ring is provided between the component shell and the base. A button shell is covered on the component shell. A circuit board is provided between the component shell and the button shell. Several buttons are movably mounted on the button shell. A tactile switch is provided on the circuit board corresponding to each button. An elastic sealing sleeve covers the upper side of the circuit board. The button is integrally formed on the elastic sealing sleeve. The bottom of the button has a protrusion that abuts against the upper side of the contact switch.

2. The combination disc brake lock according to claim 1, characterized in that: The lower side of the button housing has several integrally formed connecting posts, each with a threaded hole. The connecting posts pass through an elastic sealing sleeve and abut against the circuit board. The circuit board has through holes corresponding to the threaded holes. The elastic sealing sleeve includes a edging extending to the lower edge of the circuit board, which is pressed between the component housing and the circuit board.

3. A combination disc brake lock according to claim 1, characterized in that: The tactile switches are arranged in four columns from left to right on the circuit board, with three switches in each column. LED beads are provided between adjacent tactile switches in each column. The number and position of the buttons correspond to the tactile switches. The elastic sealing sleeve has a switch slot on the side facing the circuit board to accommodate each of the contact switches. There are conductive slots between the tactile switches in the same column to accommodate LED beads.

4. A combination disc brake lock according to claim 1, characterized in that: The component housing contains a battery, and the component housing has a USB module electrically connected to the battery on the left side facing the top cover. The left side of the top cover has a USB charging port corresponding to the USB module, and the USB charging port has a sealing plug. The base has a buzzer inside the component housing.

5. A combination disc brake lock according to claim 1, characterized in that: The locking mechanism includes a driver, a latch rod, a latch spring, a latch mounting base, and a motor base. The base has a mounting groove for accommodating the latch mounting base. The motor base is pressed against the latch mounting base and fixedly connected to the base. The latch rod moves left and right within the latch mounting base. The base has a latch opening extending through to the locking rod opening, allowing the latch rod to move left and right within it. The latch spring is located within the latch mounting base and abuts against the left end of the latch rod. The driver drives the latch rod to move to the right. A slot is provided on the left side of the locking rod, allowing the latch rod to be inserted when its lower end enters the lock hole.

6. A combination disc brake lock according to claim 5, characterized in that: A movable frame is fixedly connected to the latch rod, and a contact switch is fixedly connected to the motor base. When the latch rod is inserted into the socket, the movable frame presses against the contact switch.

7. A combination disc brake lock according to claim 1, characterized in that: The lock cylinder sleeve has a sliding limiting port on its side wall, and a limiting screw that is movably fitted into the limiting port is threaded onto the lock cylinder.

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