Special security lock for trailer door with adjustment mechanism

Abstract

The present invention discloses a special security lock for trailer doors with an adjustment mechanism, comprising a handle mounted on a housing, a lock core and a lock body, wherein the handle is movably mounted on the housing and one end of the handle contacts the lock body, and the lock body is telescopically arranged in the housing, one end of the lock core is exposed from the housing, and the other end of the lock core is located in the lock body; one end of the lock body has a detachable lock tongue, and the lock tongue is engaged with the lock body in multiple sections. The special security lock for trailer doors with an adjustment mechanism of the present invention is easy to operate, and a detachable lock tongue is arranged on the lock body. By adjusting the installation position of the lock tongue on the lock body, the lock body can be matched with a lock hole within a certain range, and the installation is more convenient.

Description

Technical Field

[0001] The invention relates to the field of locks, and in particular to a special security lock for trailer doors with an adjustment mechanism. Background Art

[0002] Existing trailer door locks generally lock or release the door by cooperating with a retractable lock body and a lock hole. The lock body is generally located on the trailer door, and the lock hole is opened and installed on the trailer body. Sometimes, due to measurement errors or errors in opening the hole, the lock hole and the lock body do not match, and the door cannot be locked. Therefore, the hole needs to be opened again, which not only affects the appearance, but also is troublesome to operate, bringing certain inconveniences to the installation of the lock.

[0003] Therefore, there is an urgent need for a special security lock for trailer doors with an adjustment mechanism in which the lock body can be adjusted to cooperate with the lock hole. Summary of the invention

[0004] The object of the present invention is to provide a special security lock for trailer doors with an adjustment mechanism, wherein the lock body can be adjusted to cooperate with a lock hole within a certain range.

[0005] To achieve the above-mentioned purpose, the present invention provides a special security lock for trailer doors with an adjustment mechanism, including a handle installed on a shell, a lock core and a lock body, the handle is movably installed on the shell and one end is in contact with the lock body, the lock body is telescopically arranged in the shell, one end of the lock core is exposed from the shell, and the other end of the lock core is located in the lock body; one end of the lock body has a detachable lock tongue, and the lock tongue is engaged with the lock body in multiple sections.

[0006] Compared with the prior art, the trailer door security lock with an adjustment mechanism of the present invention specifically includes a shell, a handle, a lock core and a lock body. The handle, the lock core and the lock body are all installed on the shell. The lock core releases the lock. Pulling the handle can make the lock body slide along with the movement of the handle, thereby making the lock body disengage from the lock hole, so that the trailer door security lock with an adjustment mechanism is released; the lock core locks the lock body, and the lock body cannot move when the handle is pulled, so that the lock body is locked with the lock hole. A detachable lock tongue is arranged at one end of the lock body, and the lock tongue can be engaged with the lock body in multiple sections. The installation position of the lock tongue can be adjusted by engaging the lock tongue with different positions of the lock body, so that the lock tongue can better cooperate with the lock hole. The trailer door security lock with an adjustment mechanism of the present invention is easy to operate. A detachable lock tongue is arranged on the lock body. By adjusting the installation position of the lock tongue on the lock body, the lock body can cooperate with the lock hole within a certain range, and the installation is more convenient.

[0007] Preferably, one end of the lock body is provided with a plurality of first engaging parts, and the lock tongue is provided with a second engaging part cooperating with the first engaging part, and the second engaging part is engaged with different first engaging parts so that the lock tongue is located at different positions of the lock body. By the second engaging part cooperating with different first engaging parts, the installation position of the lock tongue on the lock body can be adjusted.

[0008] Preferably, the end of the lock body for mounting the lock tongue is provided with grooves on both sides, and the two grooves include a first outer wall and a second outer wall connected to each other. The grooves are provided on both sides of the end of the lock body and only include the first outer wall and the second outer wall, that is, the grooves are L-shaped.

[0009] Preferably, side walls for limiting the movement of the lock tongue in the first direction of the lock body are arranged on both sides of the lock tongue, and the side walls are mounted on the first outer wall and abut against the second outer wall. The lock tongue is mounted on the first outer wall and abuts against the second outer wall, so that the connection between the lock tongue and the lock body is more stable.

[0010] Preferably, a fixing hole for fixing the lock tongue is provided on the end of the lock body for mounting the lock tongue, and a through slot is provided on the lock tongue for matching with the fixing hole. After the lock tongue is engaged with the lock body, it matches with the fixing hole through the through slot, and the structure is more stable.

[0011] Preferably, the housing includes a first cavity for installing the handle, a second cavity for installing the lock core, and a third cavity for installing the lock body, and the first cavity, the second cavity, and the third cavity are interconnected. The lock core, the lock body, and the handle are installed at different positions in the housing, but are interrelated with each other.

[0012] Preferably, a limit block for limiting is provided on the lock body, the lock body is installed in the third cavity and the limit block protrudes out of the third cavity, a detachable bottom plate is provided on the third cavity, a first limit groove cooperating with the limit block is provided on the bottom plate, and the limit block slides in the first limit groove. The limit block can limit the sliding stroke of the lock body.

[0013] Preferably, a reset member is provided on the lock body to make the lock body always have a reset tendency, and the reset member is a spring structure. The reset member of the spring structure can drive the lock body to reset after the handle drives the lock body to slide.

[0014] Preferably, a first rotating part that rotates with the handle is provided in the first cavity, the handle includes a handle part, a second rotating part that rotates with the first rotating part, and a hook part that rotates with the lock body, the lock cylinder releases the lock to pull the handle part so that the second rotating part rotates around the first rotating part, and then the hook part drives the lock body to slide. The handle part moves and drives the lock body to slide with the first rotating part and the second rotating part as fulcrums.

[0015] Preferably, a groove body is provided on the lock body, and the groove body includes a first groove portion and a second groove portion which are interconnected. One end of the handle is located in the first groove portion. The lock core is driven so that the lock core is engaged in the first groove portion to lock the lock body, or the lock core is driven so that the lock core can slide in the second groove portion to release the lock body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying any creative work.

[0017] Figure 1 It is a structural schematic diagram of a trailer door-specific security lock with an adjustment mechanism provided in one embodiment of the present invention.

[0018] Figure 2 yes Figure 1 A schematic diagram of the structure of a trailer door security lock with an adjustment mechanism from another angle.

[0019] Figure 3 yes Figure 1 A schematic diagram of the structure of a trailer door security lock with an adjustment mechanism from another angle.

[0020] Figure 4 yes Figure 1 Cross-sectional view of a trailer door security lock with an adjustment mechanism.

[0021] Figure 5 yes Figure 1 Schematic diagram of the structural breakdown of a special security lock for trailer doors with an adjustment mechanism.

[0022] Figure 6 yes Figure 1 Schematic diagram of the structural decomposition of the middle lock body and the lock tongue.

[0023] Figure 7 yes Figure 6 Schematic diagram of the structure of the middle lock body.

[0024] Figure 8 yes Figure 6 A schematic diagram of the structure of the middle lock body from another angle.

[0025] Fig. 9 yes Figure 6 Schematic diagram of the structure of the middle lock tongue.

[0026] Fig.10 yes Figure 1 Schematic diagram of the structure of the middle shell.

[0027] Fig.11 yes Figure 1 Schematic diagram of the structural decomposition of the medium-voltage casing from another angle.

[0028] Description of reference numerals:

[0029] 100. Special security lock for trailer door with adjustment mechanism;

[0030] 10. housing; 11. first cavity; 111. first rotating part; 12. second cavity; 13. third cavity; 131. second limiting groove; 14. bottom plate; 141. first limiting groove; 15. first screw;

[0031] 20. handle; 21. handle portion; 22. second rotating portion; 23. hook portion;

[0032] 30. lock core; 31. locking part;

[0033] 40. lock body; 41. first engaging portion; 42. fixing hole; 43. slot body; 431. first slot portion; 432. second slot portion; 44. stopper; 45. convex block; 46. concave groove; 461. first outer wall; 462. second outer wall; 47. reset member;

[0034] 50. Lock tongue; 51. Second engaging portion; 52. Side wall; 53. Through slot; 54. Second screw;

[0035] 60. Mounting plate; 61. Third limiting groove. DETAILED DESCRIPTION

[0036] In order to explain the technical content and structural features of the present invention in detail, further description will be given below in combination with the implementation modes and the accompanying drawings.

[0037] See also Figures 1 to 5The present invention provides a special security lock 100 for trailer doors with an adjustment mechanism, which is suitable for trailers. The special security lock 100 for trailer doors with an adjustment mechanism includes a handle 20, a lock core 30 and a lock body 40 installed on a shell 10. The handle 20 is movably installed on the shell 10 and one end is in contact with the lock body 40. The lock body 40 is telescopically arranged in the shell 10. One end of the lock core 30 is exposed from the shell 10, and the other end of the lock core 30 is located in the lock body 40. When the lock core 30 is in a released state, pulling the handle 20 can make the lock body 40 slide with the movement of the handle 20, so that the lock body 40 and the matching lock hole are released. When the lock core 30 is in a locked state, the lock core 30 is locked to the lock body 40, and the lock body 40 cannot slide when the handle 20 is pulled. Specifically, one end of the lock body 40 has a detachable lock tongue 50, and the lock tongue 50 is engaged with the lock body 40 in multiple sections. The installation position of the lock tongue 50 on the lock body 40 can be adjusted, so that the lock tongue 50 on the lock body 40 can be matched with a lock hole within a certain range. Exemplarily, the trailer door security lock 100 with an adjustment mechanism of the present invention is installed on the trailer door, and a lock hole that can be locked with the trailer door security lock 100 with an adjustment mechanism is opened on the trailer body. Due to measurement errors or hole opening errors, sometimes the lock hole cannot be matched and locked with the trailer door security lock 100 with an adjustment mechanism. At this time, by adjusting the installation position of the lock tongue 50 and the lock body 40, the lock body 40 can be locked with a lock hole within a certain range. Therefore, when the lock hole does not match the lock body 40, it is not necessary to open the hole again, and only the position of the lock tongue 50 and the lock body 40 needs to be adjusted. The trailer door security lock 100 with an adjustment mechanism of the present invention is easier to install. Of course, the security lock structure of the trailer door special security lock 100 with an adjustment mechanism can also be used in places such as room doors and cabinet doors. The security lock body is installed on the door body, and a lock hole is opened on the body. Since the security lock is adjustable, it can cooperate with the lock hole within a certain range, which is more convenient to install.

[0038] Compared with the prior art, the trailer door security lock 100 with an adjustment mechanism of the present invention comprises a housing 10, a handle 20, a lock core 30 and a lock body 40, wherein the handle 20, the lock core 30 and the lock body 40 are all mounted on the housing 10. The lock core 30 releases the lock, and pulling the handle 20 can make the lock body 40 slide along with the movement of the handle 20, thereby making the lock body 40 disengage from the lock hole, thereby making the trailer door security lock 100 with an adjustment mechanism release the lock. The lock core 30 locks the lock body 40, and when the handle 20 is pulled, the lock body 40 cannot move, so that the lock body 40 is locked with the lock hole. A detachable lock tongue 50 is provided at one end of the lock body 40, and the lock tongue 50 can be engaged with the lock body 40 in multiple sections. The installation position of the lock tongue 50 can be adjusted by engaging the lock tongue 50 with different positions of the lock body 40, so that the lock tongue 50 can better cooperate with the lock hole. The trailer door security lock 100 with an adjustment mechanism of the present invention is easy to operate. A detachable lock tongue 50 is provided on the lock body 40. By adjusting the installation position of the lock tongue 50 on the lock body 40, the lock tongue 50 can be matched with a lock hole within a certain range, making installation more convenient.

[0039] See also Figures 5 to 9 In some optional embodiments, a plurality of first engaging portions 41 are provided at one end of the lock body 40, and a second engaging portion 51 cooperating with the first engaging portion 41 is provided on the lock tongue 50, and the second engaging portion 51 is engaged with different first engaging portions 41, so that the lock tongue 50 is located at different positions of the lock body 40. Exemplarily, the first engaging portion 41 may be a slot, and the second engaging portion 51 on the lock tongue 50 may be a block, and the block is engaged with the slots at different positions, so that the lock tongue 50 can be installed at different positions of the lock body 40. Of course, the first engaging portion 41 may also be a block, and the second engaging portion 51 on the lock tongue 50 may be a slot, and the slot is engaged with different blocks, so that the lock tongue 50 can be installed at different positions of the lock body 40. It can be understood that by cooperating with different first engaging portions 41, the installation position of the lock tongue 50 on the lock body 40 can be adjusted, so that the lock tongue 50 on the lock body 40 can cooperate with the lock hole within a certain range for installation. The first engaging portion 41 cooperates with the second engaging portion 51 to limit the locking tongue 50 from moving up and down along the lock body 40 .

[0040] See also Figures 5 to 9In some optional embodiments, grooves 46 are provided on both sides of the end of the lock body 40 for mounting the lock tongue 50. The grooves 46 on both sides are L-shaped, and the two grooves 46 include a first outer wall 461 and a second outer wall 462 connected to each other. Side walls 52 for limiting the movement of the lock tongue 50 in the first direction of the lock body 40 are provided on both sides of the lock tongue 50. The side walls 52 on both sides are mounted on the first outer wall 461 and abut against the second outer wall 462. The lock tongue 50 is mounted on the first outer wall 461 and abuts against the second outer wall 462, so that the connection between the lock tongue 50 and the lock body 40 is more stable. It can be understood that the first direction is the direction along the short axis of the lock body 40, that is, the direction from the groove 46 on one side to the groove 46 on the other side. Specifically, a fixing hole 42 for fixing the lock tongue 50 is provided on the end of the lock body 40 for installing the lock tongue 50, and a through slot 53 is provided on the lock tongue 50 to match the fixing hole 42. One end of the through slot 53 is provided with an opening, and the lock tongue 50 can be removed from the lock body 40 along the direction of the opening. In this embodiment, when the lock tongue 50 is engaged with the lock body 40, the lock tongue 50 can be restricted from moving up and down along the lock body 40. The side wall 52 cooperates with the first outer wall 461 to restrict the lock tongue 50 from moving along the short axis direction of the lock body 40, that is, to restrict the lock tongue 50 from moving left and right along the lock body 40. The side wall 52 also abuts against the second outer wall 462, so that the lock tongue 50 can be restricted from moving along the long axis direction of the lock body 40, that is, to restrict the lock tongue 50 from moving forward and backward along the lock body 40. After the cooperation, the through slot 53 is then cooperated with the fixing hole 42, and then fastened by the second screw 54, so that the structure is more stable.

[0041] See also Figure 5 , Fig.10 and Fig.11 In some optional embodiments, the housing 10 includes a first cavity 11 for installing the handle 20, a second cavity 12 for installing the lock core 30, and a third cavity 13 for installing the lock body 40. The first cavity 11, the second cavity 12, and the third cavity 13 are interconnected. The lock core 30, the lock body 40, and the handle 20 are installed at different positions in the housing 10, but are interrelated with each other.

[0042] See also Figure 5 In some optional embodiments, a first rotating portion 111 that rotates with the handle 20 is provided in the first cavity 11. The handle 20 includes a handle portion 21, a second rotating portion 22 that rotates with the first rotating portion 111, and a hook portion 23 that rotates with the lock body 40. The handle portion 21 can be stored in the first cavity 11, which is more neat and beautiful. When the door needs to be opened, the lock cylinder 30 releases the lock and pulls the handle portion 21 out of the first cavity 11. At this time, the second rotating portion 22 rotates around the first rotating portion 111. Since the hook portion 23 extends into the third cavity 13 and contacts the lock body 40, the hook portion 23 can drive the lock body 40 to slide.

[0043] See also Figure 2 , Figure 4 , Figure 5 and Fig.11 In some optional embodiments, a limiting block 44 for limiting is provided at the bottom of the lock body 40, and protrusions 45 for limiting are also provided on both sides of the lock body 40. The lock body 40 is installed in the third cavity 13, and the limiting block 44 and the protrusion 45 both protrude out of the third cavity 13. Specifically, a second limiting groove 131 is provided on the cavity wall of the third cavity 13, and the protrusion 45 protrudes out of the third cavity 13 through the second limiting groove 131, and the protrusion 45 is slidably arranged in the second limiting groove 131. A disassembled bottom plate 14 is provided on the third cavity 13, and the bottom plate 14 is fixed to the housing 10 by a first screw 15. A first limiting groove 141 cooperating with the limiting block 44 is provided on the bottom plate 14, and the limiting block 44 protrudes out of the third cavity 13 through the first limiting groove 141, and the limiting block 44 slides in the first limiting groove 141. In addition, the trailer door security lock 100 with an adjustment mechanism further includes a mounting plate 60 for fixing the trailer door security lock 100 with an adjustment mechanism, and a third limiting groove 61 matching the first limiting groove 141 is provided on the mounting plate 60, and the limiting block 44 sequentially passes through the first limiting groove 141 and the third limiting groove 61 to protrude out of the trailer door security lock 100 with an adjustment mechanism. The protrusion 45 and the limiting block 44 can be used to limit the sliding stroke of the lock body 40 to prevent the lock body 40 from sliding out of the housing 10.

[0044] In this embodiment, a reset member 47 is provided on the lock body 40 so that the lock body 40 always has a reset tendency, and the reset member 47 is a spring structure. The lock body 40 is provided with a hole for installing the reset member 47 at one end away from the lock tongue 50, and the reset member 47 of the spring structure is installed in the hole of the lock body 40 and is located in the third cavity 13. The reset member 47 abuts against the inner wall of the third cavity 13. After the handle 20 drives the lock body 40 to slide, the reset member 47 of the spring structure can drive the lock body 40 to reset.

[0045] See also Figures 5 to 8In some optional embodiments, a slot 43 is provided on the lock body 40, and the slot 43 includes a first slot portion 431 and a second slot portion 432 that are interconnected. The width of the first slot portion 431 is wider than the width of the second slot portion 432, and the first slot portion 431 and the second slot portion 432 are transitioned by an arc. Among them, the hook portion 23 of the handle 20 is located in the first slot portion 431. A locking portion 31 is provided at one end of the lock core 30. When the lock core 30 is in a locked state, the locking portion 31 is engaged with the first slot portion 431 to lock the lock body 40. At this time, the handle 20 is in motion and the lock body 40 cannot slide. When the lock core 30 is in a released state, the locking portion 31 can slide in the second slot portion 432. At this time, the handle 20 is in motion, and the lock body 40 slides with the handle 20, and the lock body 40 is released from the lock hole.

[0046] like Figures 1 to 11 As shown, the trailer door security lock 100 with an adjustment mechanism of the present invention comprises a housing 10, a handle 20, a lock core 30 and a lock body 40, wherein the handle 20, the lock core 30 and the lock body 40 are all mounted on the housing 10. The lock core 30 releases the lock, and pulling the handle 20 can make the lock body 40 slide along with the movement of the handle 20, thereby making the lock body 40 disengage from the lock hole, thereby making the trailer door security lock 100 with an adjustment mechanism release the lock. The lock core 30 locks the lock body 40, and when the handle 20 is pulled, the lock body 40 cannot move, so that the lock body 40 is locked with the lock hole. A detachable lock tongue 50 is provided at one end of the lock body 40, and the lock tongue 50 can be engaged with the lock body 40 in multiple sections. The installation position of the lock tongue 50 can be adjusted by engaging the lock tongue 50 with different positions of the lock body 40, so that the lock tongue 50 can better cooperate with the lock hole. The trailer door security lock 100 with an adjustment mechanism of the present invention is easy to operate. A detachable lock tongue 50 is provided on the lock body 40. By adjusting the installation position of the lock tongue 50 on the lock body 40, the lock tongue 50 can be matched with a lock hole within a certain range, making installation more convenient.

[0047] The above disclosure is only a preferred embodiment of the present invention, which cannot be used to limit the scope of the present invention. Therefore, equivalent changes made according to the claims of the present invention are all within the scope of the present invention.

Claims

1. A special security lock for trailer doors with an adjustment mechanism, characterized in that: The invention comprises a handle mounted on a housing, a lock core and a lock body, wherein the handle is movably mounted on the housing and one end of the handle contacts the lock body, the lock body is telescopically arranged in the housing, one end of the lock core is exposed from the housing, and the other end of the lock core is located in the lock body; one end of the lock body is provided with a detachable lock tongue, and the lock tongue is engaged with the lock body in multiple sections; one end of the lock body is provided with multiple groups of first engaging parts, and the lock tongue is provided with a second engaging part cooperating with the first engaging part, and the second engaging part is engaged with different first engaging parts, so that the lock The tongues are located at different positions of the lock body; grooves are provided on both sides of the end of the lock body for installing the lock tongue, and the two grooves include a first outer wall and a second outer wall connected to each other; side walls for limiting the movement of the lock tongue in the short axis direction of the lock body are provided on both sides of the lock tongue, and the side walls are installed on the first outer wall and abut against the second outer wall; a fixing hole for fixing the lock tongue is also provided on the end of the lock body for installing the lock tongue, and a through groove matching the fixing hole is provided on the lock tongue, and the lock tongue is fastened to the lock body by screws.

2. The trailer door security lock with an adjustment mechanism according to claim 1, characterized in that: The housing comprises a first cavity for installing the handle, a second cavity for installing the lock core and a third cavity for installing the lock body, and the first cavity, the second cavity and the third cavity are interconnected.

3. The trailer door security lock with an adjustment mechanism according to claim 2, characterized in that: A limiting block for limiting is provided on the lock body, the lock body is installed in the third cavity and the limiting block protrudes out of the third cavity, a detachable bottom plate is provided on the third cavity, a first limiting groove cooperating with the limiting block is opened on the bottom plate, and the limiting block slides in the first limiting groove.

4. The trailer door security lock with an adjustment mechanism according to claim 2, characterized in that: The lock body is provided with a reset element which enables the lock body to have a constant reset tendency, and the reset element is a spring structure.

5. The trailer door security lock with an adjustment mechanism according to claim 2, characterized in that: A first rotating part that rotates with the handle is provided in the first cavity, and the handle includes a handle part, a second rotating part that rotates with the first rotating part, and a hook part that rotates with the lock body. The lock core is released to pull the handle part to make the second rotating part rotate around the first rotating part, thereby making the hook part drive the lock body to slide.

6. The trailer door security lock with an adjustment mechanism according to claim 1, characterized in that: A groove is provided on the lock body, and the groove includes a first groove portion and a second groove portion which are interconnected. One end of the handle is located in the first groove portion. The lock core is driven so that the lock core engages with the first groove portion to lock the lock body, or the lock core is driven so that the lock core can slide in the second groove portion to release the lock body.

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