Anti-theft coded lock for trailer
By designing a trailer anti-theft password lock containing a password lock core assembly and lock tongue, the existing trailer lock lock problem is solved and theft caused by the loss of keys is achieved, convenient lock operation and improved safety.
Patent Information
- Application Number
- CN202421474144.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-26
- Publication Date
- 2025-04-15
- Estimated Expiration
- 2034-06-26
AI Technical Summary
The existing trailer locks are mainly key lock core structures, which are inconvenient to use and are prone to inability to effectively combine or separate the tow truck and the trailer due to loss of keys, which affects the travel experience.
A trailer anti-theft password lock is designed, including a sleeve, lock shell, built-in password lock core assembly and lock tongue. The lock is opened and locked through the correct password set by the user to avoid inconvenience caused by forgetting to bring the key or losing the key.
It realizes the convenience of opening and locking the lock through password, effectively avoiding the theft of tow trucks caused by the loss of keys, and improving the convenience and safety of the journey.
Smart Images
Figure CN222759571U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to an anti-theft password lock for a trailer. Background Art
[0002] Trailers are commonly used in long-distance travel. Trailers have no power of their own and need to be towed by a tractor to move. The tractor tows the trailer to a set position and then separates. At this time, a special trailer lock is needed to lock the trailer to prevent the trailer from being towed by other tractors and causing property loss. Existing trailer locks generally have a key lock cylinder structure, that is, a key is needed to open and close the lock, which is inconvenient. In addition, if the key is lost, the tractor and trailer cannot be effectively combined or separated, affecting the travel experience. Utility Model Content
[0003] In view of the shortcomings existing in the above problems, the utility model provides a trailer anti-theft password lock.
[0004] To achieve the above-mentioned purpose, the utility model provides a trailer anti-theft password lock, including a sleeve, a lock shell fixedly connected to the sleeve, a password lock core assembly and a lock tongue built into the lock shell, a lock tongue compression spring is arranged on the lock tongue, and the lock tongue compression spring makes the lock tongue part extend into the interior of the sleeve, a rotatable knob is provided on one side of the lock shell, and in the unlocked state, the slope of the knob acts on the lock core shaft of the password lock core assembly to make the lock core shaft move axially, the password lock core assembly also includes an intermediate transmission member and a reset spring, the lock core shaft forms an elastic reset structure with the sleeve via the intermediate transmission member and the reset spring, and at the same time, the intermediate transmission member and the lock tongue are linked by the inclined surface.
[0005] Furthermore, the lock housing comprises two parts, an upper housing and a lower housing, and the lower housing is fixed to the sleeve by screws.
[0006] Furthermore, the upper shell is connected to the lower shell by a buckle.
[0007] Furthermore, a spring seat is fixed on the lower shell, one end of the lock tongue compression spring acts on the spring seat, and the other end of the lock tongue compression spring acts on the lock tongue.
[0008] Furthermore, the combination lock core assembly also includes a plurality of combination wheels sleeved on the lock core shaft, each combination wheel is provided with a coding wheel on the outside, the coding wheel is partially exposed to the outside of the upper shell body, an unlocking groove is formed on the combination wheel, and a protrusion corresponding to the unlocking groove is formed on the lock core shaft.
[0009] Furthermore, a spring sheet is provided in the lock housing, and a free end of the spring sheet is pressed against the encoding wheel, so that the rotation of the encoding wheel has a damping feeling.
[0010] Furthermore, the upper shell is also provided with an openable upper cover, and in a closed state, the upper cover covers the exposed portion of the encoding wheel.
[0011] Furthermore, a connector is provided on one side of the upper cover, and an assembly hole corresponding to the connector is formed on the upper shell body. The connector is made of soft rubber material and enters the assembly hole through elastic deformation.
[0012] The beneficial effects of the utility model compared with the prior art are: providing a trailer anti-theft password lock, which can be opened and locked by relying on the correct password set by the user, thereby avoiding the inconvenience caused by forgetting to bring the key or losing the key, and effectively preventing the trailer from being towed away by others and causing theft. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 This is a three-dimensional diagram of a trailer anti-theft password lock of the utility model;
[0014] Figure 2 This is a cross-sectional view of a trailer anti-theft password lock of the utility model;
[0015] Figure 3 This is an exploded view of a trailer anti-theft password lock of the utility model;
[0016] Figure 4 is a schematic diagram of the knobs involved;
[0017] Figure 5 A diagram showing the connection between the lock tongue and the spring seat involved;
[0018] Figure 6 is a schematic diagram of the password lock cylinder assembly involved;
[0019] Figure 7 An exploded view of the password lock cylinder assembly involved.
[0020] In the figure: 1, trailer hook; 2, sleeve; 3, lock shell; 31, lower shell; 32, upper shell; 321, assembly hole; 4, lock tongue; 41, first inclined surface; 5, lock tongue compression spring; 6, spring seat; 7, combination lock core assembly; 71, lock core shaft; 711, protrusion; 72, combination wheel; 721, unlocking groove; 73, encoding wheel; 74, intermediate transmission member; 741, second inclined surface; 75, reset spring; 76, spring piece; 8, knob; 81, slope; 9, upper cover; 91, connector. DETAILED DESCRIPTION
[0021] like Figures 1 to 7As shown, a trailer anti-theft password lock of an embodiment of the utility model comprises a sleeve 2, a lock shell 3 fixedly connected to the sleeve 2, a password lock core assembly 7 and a lock tongue 4 built into the lock shell 3, a lock tongue compression spring 5 is arranged on the lock tongue 4, and the lock tongue compression spring 5 makes the lock tongue 4 partially extend into the sleeve 2, and a rotatable knob 8 is arranged on one side of the lock shell 3. In the unlocked state, the slope 81 of the knob 8 acts on the lock core shaft 71 of the password lock core assembly 7 to make the lock core shaft 71 move axially, and the password lock core assembly 7 also includes an intermediate transmission member 74 and a reset spring 75. The lock core shaft 71 is connected to the sleeve via the intermediate transmission member 74 and the reset spring 75. 2 forms an elastic reset structure, and at the same time, the intermediate transmission member 74 and the lock tongue 4 are linked by an inclined surface, wherein the lock tongue 4 is formed with a first inclined surface 41, and the intermediate transmission member 74 is formed with a second inclined surface 741, and the first inclined surface 41 and the second inclined surface 741 act on each other; the lock housing 3 includes an upper housing 32 and a lower housing 31, and the lower housing 31 is fixed to the sleeve 2 by screws; the upper housing 32 is connected to the lower housing 31 by a buckle, or can also be bonded by glue or other quick fixing methods; a spring seat 6 is fixed to the lower housing 31, one end of the lock tongue compression spring 5 acts on the spring seat 6, and the other end of the lock tongue compression spring 5 Acting on the lock tongue 4; the password lock core assembly 7 also includes a plurality of password wheels 72 sleeved on the lock core shaft 71, and a coding wheel 73 is arranged outside each password wheel 72. The password wheel 72 and the coding wheel 73 are interlocking structures, and the interlocking password wheels 72 and the coding wheels 73 can rotate synchronously. Through different interlocking angles, different password settings are achieved. The coding wheel 73 is partially exposed to the outside of the upper shell 32, and an unlocking groove 721 is formed on the password wheel 72. A protrusion 711 corresponding to the unlocking groove 721 is formed on the lock core shaft 71. When the unlocking groove 721 and the protrusion 711 are distributed in a straight line, it is in the unlocking state. The lock core shaft 71 Axial movement can occur. On the contrary, when a certain unlocking groove 721 is not in a straight line with the protrusion 711, it is in a locked state, and the lock core shaft 71 cannot move axially. A spring piece 76 is also provided in the lock shell 3, and the free end of the spring piece 76 is pressed against the encoding wheel 73, so that the rotation of the encoding wheel 73 has a damping feeling. An openable and closable upper cover 9 is also arranged on the upper shell 32. In the closed state, the upper cover 9 covers the exposed part of the encoding wheel 73. A connecting head 91 is provided on one side of the upper cover 9, and an assembly hole 321 corresponding to the connecting head 91 is formed on the upper shell 32. The connecting head 91 is made of soft rubber material and enters the assembly hole 321 through elastic deformation.
[0022] The solution provides a trailer anti-theft password lock, which can be opened and locked with the correct password set by the user, thereby avoiding the inconvenience caused by forgetting to bring keys or losing keys, and effectively preventing the trailer from being towed away by others and causing theft.
[0023] In order to facilitate the understanding of the present invention, the following description is given in conjunction with the accompanying drawings during specific use;
[0024] Figure 2 The figure is a schematic diagram of the trailer anti-theft code lock locked on the trailer hook 1. When the trailer anti-theft code lock needs to be removed, each coding wheel is rotated so that the unlocking groove of each coding wheel is in a straight line with the protrusion of the lock core shaft. Then, the knob is rotated, and the slope of the knob causes the lock core shaft to move axially ( Figure 2 The intermediate transmission member which moves synchronously with the lock core shaft acts on the first inclined surface 41 of the lock tongue through the second inclined surface 741, so that the lock tongue 4 is lifted up, that is, the lock tongue leaves the inner cavity of the sleeve, and the trailer anti-theft code lock can be removed from the trailer hook 1.
[0025] When the trailer anti-theft password lock needs to be locked on the trailer hook 1, since a cutting guide surface is processed on one side of the lock tongue, when the password lock core assembly is in a locked state, the sleeve of the trailer anti-theft password lock can also be directly put on the trailer hook 1 without the need for an unlocking process, which is very convenient.
[0026] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.
Claims
1. A trailer anti-theft password lock, characterized by: The invention comprises a sleeve (2), a lock shell (3) fixedly connected to the sleeve (2), a password lock core assembly (7) and a lock tongue (4) built into the lock shell (3); the lock tongue (4) is provided with a lock tongue compression spring (5), the lock tongue compression spring (5) enables the lock tongue (4) to partially extend into the sleeve (2); a rotatable knob (8) is provided on one side of the lock shell (3); in an unlocked state, the slope (81) of the knob (8) acts on the lock core shaft (71) of the password lock core assembly (7) to cause the lock core shaft (71) to move axially; the password lock core assembly (7) further comprises an intermediate transmission member (74) and a reset spring (75); the lock core shaft (71) forms an elastic reset structure with the sleeve (2) via the intermediate transmission member (74) and the reset spring (75); at the same time, the intermediate transmission member (74) and the lock tongue (4) are linked via an inclined surface.
2. The trailer anti-theft password lock according to claim 1, characterized in that: The lock housing (3) comprises an upper housing (32) and a lower housing (31), and the lower housing (31) is fixed to the sleeve (2) by means of screws.
3. A trailer anti-theft password lock according to claim 2, characterized in that: The upper shell (32) is connected to the lower shell (31) by snapping.
4. The trailer anti-theft password lock according to claim 2, characterized in that: A spring seat (6) is fixed on the lower shell (31), one end of the lock tongue compression spring (5) acts on the spring seat (6), and the other end of the lock tongue compression spring (5) acts on the lock tongue (4).
5. The trailer anti-theft password lock according to claim 4, characterized in that: The combination lock core assembly (7) further comprises a plurality of combination wheels (72) sleeved on the lock core shaft (71), each combination wheel (72) being provided with a coding wheel (73) on the outside, the coding wheel (73) being partially exposed to the outside of the upper shell (32), an unlocking groove (721) being formed on the combination wheel (72), and a protrusion (711) corresponding to the unlocking groove (721) being formed on the lock core shaft (71).
6. The trailer anti-theft password lock according to claim 5, characterized in that: A spring sheet (76) is also provided in the lock housing (3), and the free end of the spring sheet (76) is pressed tightly against the encoding wheel (73), so that the rotation of the encoding wheel (73) has a damping feeling.
7. The trailer anti-theft password lock according to claim 6, characterized in that: The upper shell (32) is also provided with an openable upper cover (9); in a closed state, the upper cover (9) covers the exposed portion of the encoding wheel (73).
8. The trailer anti-theft password lock according to claim 7, characterized in that: One side of the upper cover (9) is provided with a connecting head (91), and an assembly hole (321) corresponding to the connecting head (91) is formed on the upper shell (32); the connecting head (91) is made of soft rubber material and enters the assembly hole (321) through elastic deformation.