Padlock with combined shell

Abstract

The utility model relates to the field of locks, in particular to a padlock with a combined shell. The lock comprises a lock beam and a lock body, the lock beam is of a U-shaped structure, the lock body comprises an upper end cover, a shell and a lower end cover, a cavity structure is arranged in the shell, the shell is provided with an upper end opening and a lower end opening which are communicated with the cavity structure, and the upper end cover is installed in the upper end opening of the shell in an embedded mode. A main lock hole allowing the two ends of the lock beam to be inserted vertically is formed in the top of the upper end cover, the upper end cover is connected with the shell through a first pin at the position of the side wall of the main lock hole, the lower end cover is installed in an opening in the lower end of the shell in an embedded mode, a lower end cover lock hole is formed in the upper surface of the lower end cover, and the lower end cover lock hole is provided with a retaining plug in a matched mode. And the lower end cover is connected with the shell through a second pin at the side wall position of the lower end cover lock hole. According to the utility model, the processing and assembling difficulty can be reduced, and the extension and expansion of the product structure are facilitated.

Description

Technical Field

[0001] The utility model relates to the field of locks, in particular to a padlock with a combined shell. Background Art

[0002] like Figure 1 As shown, a traditional electronic padlock generally comprises a lock beam, a lock body and a lower end cover. The lock beam is a U-shaped structure. The top of the lock body has a main lock hole for vertically inserting the two ends of the lock beam. The lock body has a clutch mechanism for controlling the lock beam to switch between a locked state and an unlocked state. When the lock beam is in the unlocked state, at least one end of the lock beam can be pulled upward to the end surface of the main lock hole, so that the lock beam is in the unlocked state. The clutch mechanism has multiple implementation methods (in Figure 1 The clutch mechanism is not specifically shown), and the specific implementation of the clutch mechanism can be found in the Chinese patent documents with publication numbers CN212773870U, CN213710728U, CN219118992U, and CN219299011U. The traditional lock body is usually an integral structure, with only an opening at the bottom connected to the internal installation cavity, and the lower end cover is used to close the bottom opening. It is necessary to set vertical bolts from the bottom end surface area of ​​the main lock hole where the lock beam is located to realize the connection and fixation between the lower end cover and the lock body. The disadvantages of the above scheme are that the vertical bolts will take up more internal space, which is not conducive to the layout design of the internal components of the lock body. The inner cavity structure of the lock body is relatively complex, and the processing is relatively difficult. The overall assembly is also relatively difficult, and the product structure is relatively fixed, which is not conducive to the extension and expansion of the product structure. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a padlock with a combined shell, which can reduce the difficulty of processing and assembling and is conducive to the extension and expansion of the product structure.

[0004] The technical solution adopted by the utility model to solve its technical problems is: a padlock with a combined shell, comprising a lock beam and a lock body, the lock beam being a U-shaped structure, the top end of the lock body being provided with a main lock hole for vertically inserting the two ends of the lock beam, the lock body being provided with a clutch mechanism for controlling the lock beam to switch between a locked state and an unlocked state, when the lock beam is in the unlocked state, at least one end of the lock beam can be pulled upward to the outside of the end face of the main lock hole, so that the lock beam is in an unlocked state, the lock body comprising an upper end cover and a shell, the interior of the shell being provided with a cavity structure, and the shell being provided with an upper end opening communicating with the cavity structure, the upper end cover being embedded in the upper end opening of the shell, the main lock hole being provided at the top of the upper end cover, and the upper end cover being provided on the side of the main lock hole The wall position is connected to the shell through a first pin, the shell has a first pin hole A matching the first pin, and the upper end cover has a first pin hole B matching the first pin. The first pin is equipped with a limiting structure so that the first pin cannot move in the direction close to the outer wall of the shell to achieve the separation of the first pin and the first pin hole B. When the lock beam is in a locked state, the lock beam limits the first pin so that the first pin cannot move in the direction close to the main lock hole to achieve the separation of the first pin and the first pin hole A. When the lock beam is in an unlocked state, the first pin can move in the direction close to the main lock hole to achieve the separation of the first pin and the first pin hole A, thereby enabling the upper end cover to be separated from the shell.

[0005] A further preferred solution is that the lock body includes a lower end cover, the shell has a lower end opening communicating with its cavity structure, the lower end cover is embedded in the lower end opening of the shell, the upper surface of the lower end cover is provided with a lower end cover lock hole, the lower end cover lock hole is equipped with a stop plug, the stop plug has a locked state and an unlocked state, the lower end cover is connected to the shell through a second pin at the side wall position of the lower end cover lock hole, the shell has a second pin hole A matching the second pin, the lower end cover has a second pin hole B matching the second pin, and the second pin is equipped with a limit The positioning structure prevents the second pin from moving toward the outer wall of the shell to achieve the separation of the second pin and the second pin hole B. When the anti-retraction plug is in the locked state, the anti-retraction plug limits the second pin so that the second pin cannot move toward the direction close to the lock hole of the lower end cover to achieve the separation of the second pin and the second pin hole A. When the anti-retraction plug is in the unlocked state, the second pin can move toward the direction close to the lock hole of the lower end cover to achieve the separation of the second pin and the second pin hole A, thereby allowing the lower end cover to be separated from the shell.

[0006] A further preferred solution is: taking the main lock holes located at the left and right ends of the upper end cover as a reference state, a first pin is correspondingly provided on the front and rear sides of each main lock hole.

[0007] A further preferred solution is: with the main lock holes located at the left and right ends of the upper end cover as a reference state, lower end cover lock holes are respectively provided at the left and right ends of the lower end cover, and a second pin is respectively provided on the front and rear sides of each lower end cover lock hole.

[0008] A further preferred solution is: the axis of the first pin is arranged along the radial direction of the main lock hole, the first pin is a cylindrical step pin, the first pin hole A and the first pin hole B are both cylindrical straight holes, and the inner diameter of the first pin hole A is smaller than the inner diameter of the first pin hole B.

[0009] A further preferred solution is: the axis of the lock hole of the lower end cover is arranged vertically, the axis of the second pin is arranged radially along the lock hole of the lower end cover, the second pin is a cylindrical step pin, the second pin hole A and the second pin hole B are both cylindrical straight holes, and the inner diameter of the second pin hole A is smaller than the inner diameter of the second pin hole B.

[0010] A further preferred solution is that the anti-retraction plug is a screw or a pin.

[0011] A further preferred solution is that the cavity structure, the upper end opening and the lower end opening of the shell form a vertical through-hole structure with the same cross-section.

[0012] The beneficial effects of the present invention are as follows: the original one-piece lock body is split into an upper end cover and a hollow structure shell for separate processing, which can reduce the processing difficulty and make the overall assembly easier (the clutch mechanism and other components can generally be pre-assembled with the upper end cover, and then connected and fixed to the shell as a whole). The lower end cover and the shell can be designed as an integrated structure, or can be fixed by welding, or can be connected and fixed by the second pin in the present invention. The fixation of the lower end cover eliminates the original long vertical screw (which needs to extend from the bottom position of the main lock hole corresponding to the lock beam to the upper end surface position of the lower end cover), which can save the internal space of the lock body and is beneficial to the layout design of the internal parts of the lock body. The upper end cover can be disassembled and assembled repeatedly. When it is necessary to extend and expand the product structure, it is only necessary to replace a larger shell, so that a larger size internal installation cavity of the lock body can be formed. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of a padlock embodiment in the prior art.

[0014] Figure 2 It is a front view of an embodiment of a padlock of the present invention (the upper end cover and the lower end cover are assembled, and the lock beam is in a locked state).

[0015] Figure 3 yes Figure 2 The cross-sectional structure diagram of the embodiment shown is in the side view direction.

[0016] Figure 4It is a front view of an embodiment of a padlock of the present invention (the lower end cover is assembled and the upper end cover is in the process of being disassembled).

[0017] Figure 5 yes Figure 4 The cross-sectional structure diagram of the embodiment shown is in the side view direction.

[0018] Figure 6 It is a front view of an embodiment of a padlock of the present invention (the lower end cover is assembled and the upper end cover is separated from the shell).

[0019] Figure 7 yes Figure 6 The cross-sectional structure diagram of the embodiment shown is in the side view direction.

[0020] Figure 8 It is a front view of an embodiment of a padlock of the present invention (the lower end cover is in the process of being disassembled, and the upper end cover is in a separated state relative to the shell).

[0021] Figure 9 yes Figure 8 The cross-sectional structure diagram of the embodiment shown is in the side view direction.

[0022] Figure 10 It is a front view of an embodiment of a padlock of the present invention (the upper end cover and the lower end cover are both in a separated state relative to the shell).

[0023] Figure 11 yes Figure 10 The cross-sectional structure diagram of the embodiment shown is in the side view direction.

[0024] The parts in the figure are marked as shown in the following table: lock beam 1, upper end cover 2, shell 3, lower end cover 4, first pin 5, anti-retraction plug 6, second pin 7, vertical bolt 8. DETAILED DESCRIPTION

[0025] The present invention will be further described below with reference to the accompanying drawings.

[0026] like Figures 2 to 11As shown, the present invention includes a lock beam 1 and a lock body. The lock beam 1 is a U-shaped structure. The top of the lock body has a main lock hole for the two ends of the lock beam 1 to be vertically inserted. The lock body has a clutch mechanism for controlling the lock beam 1 to switch between a locked state and an unlocked state. When the lock beam 1 is in the unlocked state, at least one end of the lock beam 1 can be pulled out upward to the outside of the end face of the main lock hole, so that the lock beam 1 is in the unlocked state. Referring to the background technology section above, the clutch mechanism and other structures not described in detail in the present invention can be implemented with reference to the existing technology and can be arranged on the upper end cover 2 of the present invention according to actual conditions. Of course, if necessary, some parts can also be set on the shell 3 or the lower end cover 4. The fact that at least one end of the lock beam 1 can be pulled out upward should be understood in a broad sense. It can be pulled out manually or automatically popped up by a spring or other mechanism.

[0027] The lock body of the present invention includes an upper end cover 2 and a shell 3. The interior of the shell 3 has a cavity structure, and the shell 3 has an upper end opening connected to its cavity structure. The upper end cover 2 is embedded in the upper end opening of the shell 3. The main lock hole is set at the top of the upper end cover 2. The upper end cover 2 is connected to the shell 3 through a first pin 5 at the side wall of the main lock hole. The shell 3 has a first pin hole A that matches the first pin 5, and the upper end cover 2 has a first pin hole B that matches the first pin 5. The first pin 5 is equipped with a limiting structure so that The first pin 5 cannot move toward the direction close to the outer wall of the shell 3 to realize the separation of the first pin 5 and the first pin hole B. When the lock beam 1 is in the locked state, the lock beam 1 limits the first pin 5 so that the first pin 5 cannot move toward the direction close to the main lock hole to realize the separation of the first pin 5 and the first pin hole A. When the lock beam 1 is in the unlocked state, the first pin 5 can move toward the direction close to the main lock hole to realize the separation of the first pin 5 and the first pin hole A, thereby allowing the upper end cover 2 to be separated from the shell 3. During specific installation, it is necessary to first retract the first pin 5 into the first pin hole B of the upper end cover 2, then install the upper end cover 2 and the first pin 5 as a whole into the upper end opening of the shell 3, and finally connect the first pin 5 with the first pin hole A. When the lock beam 1 is in the locked state, the lock beam 1 can limit the inner end of the first pin 5 (the first pin 5 cannot move in the direction close to the main lock hole), and the outer end of the first pin 5 has its own limiting structure (the first pin 5 cannot move in the direction close to the outer wall of the shell 3), so the reliability of the connection between the upper end cover 2 and the shell 3 can be fully ensured. When the upper end cover 2 needs to be removed, it is only necessary to first put the lock beam 1 in the unlocked state, and then press the first pin 5 inward to separate the first pin 5 from the first pin hole A, so that the upper end cover 2 can be taken out upward from the shell 3.

[0028] The retaining structure on the outer end of the first pin 5 can be implemented in a variety of ways. To facilitate processing and assembly, the preferred embodiment of the present invention is one in which the axis of the first pin 5 is arranged radially along the main lock hole. The first pin 5 is a cylindrical stepped pin, and both the first pin hole A and the first pin hole B are cylindrical straight holes. The inner diameter of the first pin hole A is smaller than that of the first pin hole B. This effectively achieves the retaining effect by the cooperation of the stepped surface on the outer wall of the first pin 5 and the inner end surface of the first pin hole A. In certain alternative embodiments, a retaining protrusion may be provided only on a portion of the outer wall of the first pin 5, while a matching groove is provided on the inner wall of the first pin hole B. The retaining effect is also achieved by the cooperation of the retaining protrusion and the inner end surface of the first pin hole A. In certain alternative embodiments, the first pin 5 may also be a conventional cylindrical pin, with the first pin hole A having a stepped hole structure with a larger inner end and a smaller outer end. The retaining effect is also achieved by the cooperation of the stepped surface of the first pin hole A and the end surface of the first pin 5.

[0029] The number of first pins 5 can be flexibly set according to actual conditions. To ensure structural reliability, at least one first pin 5 can generally be set on the side wall of each main lock hole. To further improve structural reliability, the preferred solution adopted by the present invention is to use the main lock holes located at the left and right ends of the upper end cover 2 as a reference state. The front and rear sides of each main lock hole are respectively provided with a first pin 5, which is equivalent to a total of four first pins 5, which can ensure uniform and reliable force.

[0030] In a preferred embodiment, the lock body includes a lower end cap 4, and the outer shell 3 has a lower end opening that communicates with its cavity structure, which is equivalent to the outer shell 3 being a hollow structure. The term "hollow structure" herein can be understood broadly, and the cross-sectional shape and specifications of the hollow structure can be inconsistent. To further reduce manufacturing difficulty and improve the versatility of the device, it is preferred that the cross-sectional shape and specifications of the hollow structure be designed to be consistent. In other words, the cavity structure of the outer shell 3, the upper end opening, and the lower end opening form a vertical through-hole structure with the same cross-section. This vertical through-hole can typically be a rectangular hole or a structure similar to a rectangular hole.

[0031] The mounting structure of the lower end cover 4 is similar to that of the upper end cover 2. Specifically, the lower end cover 4 is embedded in the lower end opening of the shell 3. The upper surface of the lower end cover 4 is provided with a lower end cover lock hole. The lower end cover lock hole is equipped with a stop plug 6. The stop plug 6 has a locked state and an unlocked state. The lower end cover 4 is connected to the shell 3 through a second pin 7 at the side wall position of the lower end cover lock hole. The shell 3 has a second pin hole A that matches the second pin 7. The lower end cover 4 has a second pin hole B that matches the second pin 7. The second pin 7 is equipped with a limiting structure so that The second pin 7 cannot move toward the outer wall of the housing 3 to separate the second pin 7 from the second pin hole B. When the backstop plug 6 is in the locked state, the backstop plug 6 limits the second pin 7 so that the second pin 7 cannot move toward the lock hole of the lower end cover to separate the second pin 7 from the second pin hole A. When the backstop plug 6 is in the unlocked state, the second pin 7 can move toward the lock hole of the lower end cover to separate the second pin 7 from the second pin hole A, thereby allowing the lower end cover 4 to be separated from the housing 3. The disassembly and assembly method of the lower end cover 4 is similar to that of the upper end cover 2, except that the lock beam 1 corresponding to the first pin 5 in the upper end cover 2 is replaced by the backstop plug 6 corresponding to the second pin 7 in the lower end cover 4. When installing the lower end cover 4, it is only necessary to first retract the second pin 7 into the second pin hole B of the lower end cover 4, then install the lower end cover 4 and the second pin 7 as a whole into the lower end opening of the shell 3, and finally connect the second pin 7 with the second pin hole A, and restore the backstop plug 6 to the locked state. When the backstop plug 6 is in the locked state, the backstop plug 6 can limit the inner end of the second pin 7 (the second pin 7 cannot move in the direction close to the lock hole of the lower end cover), and the outer end of the second pin 7 has a self-limiting structure (the second pin 7 cannot move in the direction close to the outer wall of the shell 3), so the reliability of the connection between the lower end cover 4 and the shell 3 can be fully ensured. When the lower end cover 4 needs to be removed, it is only necessary to first put the backstop plug 6 in the unlocked state, and then press the second pin 7 inward to separate the second pin 7 from the second pin hole A, so that the lower end cover 4 can be taken out downward from the shell 3.

[0032] It should be noted that, when assembling the preferred embodiment of the present invention, it is generally necessary to first fix and install the lower end cover 4, and then fix and install the upper end cover 2. The disassembly process is the opposite, and it is generally necessary to first remove the upper end cover 2, and then remove the lower end cover 4. In some alternative embodiments, the lower end cover 4 and the outer shell 3 can be designed as an integral structure, or they can be fixed by welding. When it is necessary to extend and expand the product structure, it is only necessary to replace the outer shell 3 with a larger size. Depending on the setting method of the lower end cover 4, in some embodiments, the replaced outer shell 3 is a hollow structural shell without the lower end cover 4, and in other embodiments, the replaced outer shell 3 is an integral shell with the lower end cover 4.

[0033] The preferred installation structure of the lower end cover 4 is similar to that of the upper end cover 2, specifically as follows: with the main lock holes located at the left and right ends of the upper end cover 2 as a reference state, the left and right ends of the lower end cover 4 are respectively provided with lower end cover lock holes, and the front and rear sides of each lower end cover lock hole are respectively provided with second pins 7, which is equivalent to a total of four second pins 7, and the force is uniform and reliable.

[0034] The axis of the lower end cap lock hole is arranged vertically, and the axis of the second pin 7 is arranged radially along the lower end cap lock hole. The second pin 7 is a cylindrical stepped pin. The second pin hole A and the second pin hole B are both cylindrical straight holes. The inner diameter of the second pin hole A is smaller than the inner diameter of the second pin hole B, facilitating processing and assembly. Alternative embodiments are not listed here one by one; please refer to the above-mentioned alternative embodiments for assembling the first pin 5 for details.

[0035] The backstop plug 6 can be implemented in a variety of ways, as long as they meet the specific technical requirements for the locked and unlocked states of the backstop plug 6 described above. To ensure structural simplicity and reliability, the backstop plug 6 is preferably a screw or pin. In certain alternative embodiments, the backstop plug 6 may also utilize other conventional linear displacement mechanisms or rotational mechanisms known in the art.

Claims

1. A padlock with a combined housing, comprising a lock beam (1) and a lock body, wherein the lock beam (1) is a U-shaped structure, the top of the lock body having a main lock hole for vertically inserting two ends of the lock beam (1), the lock body having a clutch mechanism for controlling the lock beam (1) to switch between a locked state and an unlocked state, when the lock beam (1) is in the unlocked state, at least one end of the lock beam (1) can be pulled upward to the outside of the end surface of the main lock hole, so that the lock beam (1) is in the unlocked state, characterized in that: The lock body comprises an upper end cover (2) and an outer shell (3), the inner portion of the outer shell (3) has a cavity structure, and the outer shell (3) has an upper end opening communicating with the cavity structure, the upper end cover (2) is embedded in the upper end opening of the outer shell (3), the main lock hole is arranged at the top of the upper end cover (2), the upper end cover (2) is connected to the outer shell (3) at the side wall position of the main lock hole through a first pin (5), the outer shell (3) has a first pin hole A matching the first pin (5), the upper end cover (2) has a first pin hole B matching the first pin (5), and the first pin (5) is provided with a limiting structure so that The first pin (5) cannot move in a direction close to the outer wall of the shell (3) to achieve the separation of the first pin (5) and the first pin hole B. When the lock beam (1) is in a locked state, the lock beam (1) limits the first pin (5) so that the first pin (5) cannot move in a direction close to the main lock hole to achieve the separation of the first pin (5) and the first pin hole A. When the lock beam (1) is in an unlocked state, the first pin (5) can move in a direction close to the main lock hole to achieve the separation of the first pin (5) and the first pin hole A, thereby enabling the upper end cover (2) to be separated from the shell (3).

2. The padlock with a modular housing according to claim 1, wherein: Taking the main lock holes located at the left and right ends of the upper end cover (2) as a reference state, the front side and the rear side of each main lock hole are respectively provided with a first pin (5).

3. The padlock with a modular housing according to claim 1, wherein: The axis of the first pin (5) is arranged along the radial direction of the main lock hole. The first pin (5) is a cylindrical step pin. The first pin hole A and the first pin hole B are both cylindrical straight holes. The inner diameter of the first pin hole A is smaller than the inner diameter of the first pin hole B.

4. The padlock with a modular housing according to any one of claims 1 to 3, wherein: The lock body comprises a lower end cover (4), a housing (3) having a lower end opening communicating with its cavity structure, the lower end cover (4) being embedded in the lower end opening of the housing (3), a lower end cover lock hole being provided on the upper surface of the lower end cover (4), the lower end cover lock hole being provided with a stop plug (6), the stop plug (6) having a locked state and an unlocked state, the lower end cover (4) being connected to the housing (3) through a second pin (7) at a side wall position of the lower end cover lock hole, the housing (3) having a second pin hole A matching the second pin (7), the lower end cover (4) having a second pin hole B matching the second pin (7), the second pin (7) being provided with a limit stop The structure is such that the second pin (7) cannot move in a direction close to the outer wall of the shell (3) to realize the separation of the second pin (7) and the second pin hole B. When the stop plug (6) is in a locked state, the stop plug (6) limits the second pin (7) so that the second pin (7) cannot move in a direction close to the lock hole of the lower end cover to realize the separation of the second pin (7) and the second pin hole A. When the stop plug (6) is in an unlocked state, the second pin (7) can move in a direction close to the lock hole of the lower end cover to realize the separation of the second pin (7) and the second pin hole A, thereby enabling the lower end cover (4) to be separated from the shell (3).

5. The padlock with a modular housing according to claim 4, wherein: Taking the main lock holes located at the left and right ends of the upper end cover (2) as a reference state, the left and right ends of the lower end cover (4) are respectively provided with lower end cover lock holes, and the front and rear sides of each lower end cover lock hole are respectively provided with second pins (7).

6. The padlock with a modular housing according to claim 4, wherein: The axis of the lock hole of the lower end cover is arranged vertically, and the axis of the second pin (7) is arranged radially along the lock hole of the lower end cover. The second pin (7) is a cylindrical step pin. The second pin hole A and the second pin hole B are both cylindrical straight holes. The inner diameter of the second pin hole A is smaller than the inner diameter of the second pin hole B.

7. The padlock with a modular housing according to claim 6, wherein: The anti-retraction plug (6) is a screw or a pin.

8. The padlock with a modular housing according to claim 4, wherein: The cavity structure, the upper end opening and the lower end opening of the shell (3) form a vertical through-hole structure with the same cross-section.

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