Key and marble padlock

Abstract

According to the key and the marble padlock, the key comprises a key body and a key handle, and the key body is used for being inserted into a lock cylinder to drive the lock cylinder to rotate; the key handle is arranged at one end of the key body and connected with the key body. The key handle is configured to be of a bent structure, and the key handle can be manufactured and formed in a bent mode. Wherein a key hole is defined by the key handle, and the key can be hung and installed through the key hole. That is to say, the key handle of the key is manufactured and formed in a bending mode, and the key hole defined by the key handle is used for hanging installation, so that on one hand, the material utilization rate during key manufacturing can be improved, and the function of saving material cost is achieved; on the other hand, the shape of the key handle can be diversified, and the use requirements of users for different key shapes can be met.

Description

Technical Field

[0001] This utility model belongs to the technical field of pin tumbler padlocks, and in particular relates to a key and a pin tumbler padlock. Background Technology

[0002] A pin tumbler padlock is a combination of a pin tumbler lock and a padlock. When a suitable key is inserted, the different heights of the key teeth correspond to different length pins. Pushing the pins to a specific position aligns the spaces between the pins with the rotation line of the lock cylinder, allowing the lock cylinder to rotate and thus unlocking the padlock. After the key is removed, the pins return to their original position under the action of springs, stopping at the break point, preventing the lock cylinder from rotating, and thus locking the pin tumbler padlock.

[0003] In related technologies, keys for pin tumbler padlocks are generally manufactured using a punch press. Specifically, the key handle is first shaped on a selected key blank using a punch press, and then the key shaft is serrated using a threading device. While the punch press process is simple, the material utilization rate during key manufacturing is typically only 55% due to the need to machine the keyhole into the handle, resulting in significant waste. This not only increases manufacturing costs but also produces flat key handles that fail to meet diverse user preferences for key shapes. Utility Model Content

[0004] In view of this, it is necessary to provide a key and pin tumbler padlock for solving the above-mentioned technical problems.

[0005] A key used in a pin tumbler padlock, the key comprising:

[0006] The key body is used to be inserted into the lock cylinder to drive the lock cylinder to rotate;

[0007] A key handle is disposed at one end of the key body and connected to the key body. The key handle is configured as a bent structure and can be formed by bending.

[0008] The key handle is enclosed to form a keyhole, and the key can be suspended and installed through the keyhole.

[0009] It is understandable that the key handle is made by bending, and then the keyhole is formed by the key handle for hanging and installation. This can improve the material utilization rate during the key manufacturing process and save material costs. On the other hand, it can also make the key handle shape more diverse and meet the user's needs for different key shapes.

[0010] In one embodiment, the key handle and the key body are connected as an integral structure.

[0011] Understandably, connecting the key handle and the key body into a single integrated structure allows the key to be made from the same key blank, which facilitates the key's production.

[0012] In one embodiment, the key handle is ring-shaped.

[0013] In one embodiment, the key is made of stainless steel tubing.

[0014] In one embodiment, the key body has a plurality of key teeth, which are disposed on two opposite sides of the key body.

[0015] It is understandable that arranging multiple key teeth on two opposite sides of the key body allows the key body to double the number of matching key teeth within a limited length. This not only solves the problem of the number of corresponding key teeth pins, but also reduces the rate of keys being interchangeable.

[0016] In one embodiment, the plurality of key teeth include a first row of key teeth groups and a second row of key teeth groups, the first row of key teeth groups and the second row of key teeth groups being disposed on two opposite sides of the key body;

[0017] Along the extension direction of the key body, the key teeth in the first row of key teeth are staggered relative to the key teeth in the second row of key teeth.

[0018] It is understandable that the key teeth on the two opposite sides of the key body are staggered to avoid mutual interference between the key teeth on the two opposite sides of the key body.

[0019] This application also claims protection for a pin tumbler padlock, comprising a lock body, a shank, a bolt, a cylinder, and the aforementioned key; the cylinder is rotatably mounted in the lock body and abuts against the bolt, for controlling the locking / unlocking of the shank within the lock body;

[0020] The key body can be inserted into the lock cylinder to limit the circumferential movement of the key body and the lock cylinder.

[0021] In one embodiment, the lock cylinder has a lock cylinder hole, and the lock cylinder has a pin inside the lock cylinder hole, the pin and the hole wall of the lock cylinder hole forming a slot;

[0022] The key body can be inserted into the slot.

[0023] It is understandable that by placing a pin inside the lock cylinder hole, the cavity on the lock cylinder for inserting the key body is made smaller, leaving insufficient space for the insertion of tools used for technical unlocking. This prevents the lock cylinder of the pin tumbler padlock from being opened by technical means.

[0024] In one embodiment, the lock cylinder has a lock cylinder hole, and the lock cylinder is provided with a positioning pin at the location of the lock cylinder hole;

[0025] The key body has an opening groove that can engage with the positioning pin to limit the circumferential positioning of the key body and the lock cylinder.

[0026] In one embodiment, the number of locking tongues is configured to be two.

[0027] Understandably, using two latches to lock the shank allows the shank of the pin tumbler padlock to be detached from the lock body as a whole, and creates the conditions for setting two rows of pin tumblers inside the lock body.

[0028] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art:

[0029] The key and pin tumbler padlock claimed in this application are made by bending the key handle, and the keyhole formed by the key handle is used for hanging and installation. This can improve the material utilization rate during the key manufacturing process and save material costs. On the other hand, it can also make the shape of the key handle more diverse and meet the user's needs for different key shapes. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 An exploded view of the pin tumbler padlock provided in this application.

[0032] Figure 2 A schematic diagram of the key provided in this application.

[0033] Reference numerals: 100, Key; 10, Key body; 11, Key teeth; 111, First row of key teeth assembly; 112, Second row of key teeth assembly; 12, Opening slot; 20, Key handle; 21, Keyhole; 200, Lock cylinder; 201, Slot; 210, Lock cylinder hole; 211, Hole wall; 220, Insert pin; 230, Positioning pin; 240, Lock cylinder torsion angle; 300, Lock body; 310, Lock beam hole; 400, Lock beam; 410, Lock beam head; 411, Locking port; 500, Lock tongue; 510, Lock tongue spring; 600, Tessellation pin; 1000, Pin padlock. Detailed Implementation

[0034] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] It should be noted that when a component is said to be "located on" another component, it can be directly located on the other component or may have an intervening component. When a component is considered to be "located on" another component, it can be directly located on the other component or may have an intervening component. When a component is considered to be "fixed to" another component, it can be directly fixed to the other component or may have an intervening component.

[0036] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0037] The key 100 in this application specifically refers to the key used in the pin tumbler padlock 1000.

[0038] like Figure 1 , Figure 2As shown, a key 100 provided in one embodiment of this application includes a key body 10 and a key handle 20. The key body 10 is inserted into a lock cylinder 200 to drive the lock cylinder 200 to rotate. The key handle 20 is disposed at one end of the key body 10 and connected to the key body 10. The key handle 20 is configured as a bent structure and can be formed by bending. The key handle 20 encloses a keyhole 21, through which the key 100 can be suspended. Specifically, a bending machine can be used to manufacture the key handle 20.

[0039] As can be seen from the above, since the key handle 20 of the key 100 of this application is made by bending and is used to surround the keyhole 21 for hanging and installation, on the one hand, the material utilization rate during the manufacture of the key 100 can be improved, which has the effect of saving material costs; on the other hand, the shape of the key handle 20 can be diversified, which can meet the user's needs for different key shapes.

[0040] It should be noted that this application uses a bending machine to bend the key handle 20 of the key 100 from the key blank, which eliminates the process of punching. The key hole 21 formed by the key handle 20 itself meets the usage requirements of hanging and installing the key 100, so that the material utilization rate of the key 100 can reach about 98% during the manufacturing process, which greatly reduces the material cost during the manufacturing process of the key 100.

[0041] In this application, the key handle 20 and the key body 10 are connected as an integral structure, so that the key 100 can be manufactured from the same key blank, which facilitates the production of the key. It is understood that in other embodiments, the key handle 20 may also be connected and fixed to the key body 10 by welding, interference fit, or other methods, which will not be elaborated here.

[0042] like Figure 1 , Figure 2 As shown, in one embodiment, the key body 10 has multiple key teeth 11, which are disposed on two opposite sides of the key body 10. This allows the key body 10 to double the number of matching key teeth 11 within a limited length, thus solving the problem of the number of corresponding key teeth tumblers for the key 100 and reducing the key's interoperability. Here, the key teeth 11 can be manufactured by milling. It should be noted that, given the same number of key teeth 11, the key 10 can also use a shorter key body 10 to accommodate the corresponding number of key teeth 11.

[0043] like Figure 2As shown, in this embodiment, the plurality of key teeth 11 include a first row of key teeth groups 111 and a second row of key teeth groups 112, which are disposed on two opposite sides of the key body 10. Furthermore, along the extending direction of the key body 10, the key teeth 11 in the first row of key teeth groups 111 are staggered relative to the key teeth 11 in the second row of key teeth groups 112. In other words, in this embodiment, the key 100 staggers the key teeth 11 on two opposite sides of the key body 10, thus avoiding mutual interference between the key teeth 11 on the two opposite sides of the key body 10, ensuring that the key body 10 has sufficient thickness at the location of each key tooth 11, thereby ensuring the overall structural strength of the key body 10.

[0044] like Figure 1 , Figure 2 As shown, in one embodiment, the key handle 20 is ring-shaped. That is, in this embodiment, the key handle 20 can be formed by enclosing a keyhole 21 in a ring shape, allowing the user to hang the key 100 in a keychain through the keyhole 21 formed by the key handle 20, thus meeting the user's usage needs. It is understood that in other embodiments, the key handle 20 may also be triangular, spiral, or other shapes, which will not be elaborated upon here.

[0045] like Figure 1 , Figure 2 As shown, in this application, the key 100 is made of stainless steel tubing, meaning it is tubular. This allows the key 100 to be manufactured by cutting stainless steel tubing to a suitable length. This utilizes the material properties of stainless steel, which not only reduces production costs and increases production efficiency but also improves the key 100's bending resistance, thus enhancing the product quality. It should be noted that in other embodiments, the key 100 may also be made of alloys such as copper, aluminum, or zinc, or of iron tubing with a low yield point; alternatively, it may be made of a tensile strip, which will not be elaborated upon here.

[0046] like Figure 1As shown, this application also provides a pin tumbler padlock 1000, including a lock body 300, a lock beam 400, a lock tongue 500, a lock cylinder 200, and the aforementioned key 100. The lock cylinder 200 is rotatably installed inside the lock body 300 and abuts against the lock tongue 500, used to control the locking / unlocking of the lock beam 400 within the lock body 300. The key body 10 of the key 100 can be inserted into the lock cylinder 200 to circumferentially limit the movement of the key body 10 and the lock cylinder 200. In other words, when using the pin tumbler padlock 1000, the user can first insert the key body 10 of the key 100 into the lock cylinder 200 located within the lock body 300, and then rotate the key handle 20 to drive the lock cylinder 200 to rotate within the lock body 300, thereby releasing the lock beam 400 from the lock body 300.

[0047] like Figure 1 As shown, in one embodiment, the lock cylinder 200 has a lock cylinder hole 210, and a pin 220 is provided in the lock cylinder hole 210. A slot 201 is formed between the pin 220 and the hole wall 211 of the lock cylinder hole 210. Furthermore, the key body 10 can be inserted into the slot 201. This makes the cavity size on the lock cylinder 200 for inserting the key body 10 of the key 100 smaller, without sufficient space for the insertion of tools used for technical unlocking, thus preventing the lock cylinder 200 of the pin tumbler padlock 1000 from being technically opened.

[0048] like Figure 1 As shown, in this embodiment, a positioning pin 230 is provided at the location of the lock cylinder hole 210 in the lock cylinder 200; correspondingly, an opening groove 12 is provided on the key body 10, which can engage with the positioning pin 230 to limit the circumferential positioning of the key body 10 and the lock cylinder 200, thus satisfying the usage requirement of the key 100 driving the lock cylinder 200 to rotate within the lock body 300. Here, the positioning pin 230 is assembled into the lock cylinder 200 by an interference fit.

[0049] It should be noted that the specific arrangement of the pin tumbler 600, which matches the key teeth 11 on the key body 10, on the lock cylinder 200 and lock body 300 in the pin tumbler padlock 1000 can adopt the conventional method of existing pin tumbler padlocks. The pin 600 can control the locking / unlocking of the lock cylinder 200 rotating within the lock body 300, which will not be elaborated here.

[0050] like Figure 1As shown, in one embodiment, the number of latches 500 is configured to be two, so that the pin tumbler padlock 1000 can use two latches 500 to lock the lock beam 400. This allows the lock beam 400 to be completely disengaged from the lock body 300, and the length of the lock beam 400 inserted into the lock body 300 when locked is not large. In this way, the usage requirements of setting two rows of pin tumblers 600 in the lock body 300 can be met.

[0051] like Figure 1 As shown, in the normal open state, the user can forcefully insert the two locking beam heads 410 of the locking beam 400 into the two locking beam holes 310 of the lock body 300. During this process, the two locking tongues 500 are compressed inward under the pressure of the two locking beam heads 410. When they reach the locking port 411 of the locking beam head 410, they are pushed outward by the locking tongue spring 510 between the two locking tongues 500, smoothly entering the corresponding locking port 411 and completing the locking process of the locking beam 400. When the user inserts the matching key 100 into the slot 201 of the lock cylinder 200 in the correct direction, and the key body 10 reaches the bottom of the lock cylinder 200, the key body 10 is rotated continuously to engage the opening slot 12 with the positioning pin 230. At this time, the key teeth 11 of the key body 10 align with the toothed pins 600 of the lock cylinder 200, complementing each other and completing the matching process. According to the general principle of pin tumbler locks, the key can then rotate the lock cylinder 200. When rotated to a certain angle, the lock cylinder twist angle 240 on the lock cylinder 200 can drive the two bolts 500 to retract inward. Because of the retraction of the two bolts 500, the two lock beam heads 410 of the lock beam 400 have no resistance, allowing the user to pull the lock beam 400 to disengage from the lock body 300 and complete the opening process of the pin tumbler padlock 1000.

[0052] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0053] Those skilled in the art should recognize that the above embodiments are only used to illustrate the present utility model and are not intended to limit the present utility model. Any appropriate changes and variations made to the above embodiments within the scope of the essential spirit of the present utility model shall fall within the scope of protection claimed by the present utility model.

Claims

1. A key for use in a tumbler lock, characterized in that The key (100) comprises: a key body (10) for being inserted into a lock cylinder (200) to drive the lock cylinder (200) to rotate; a key handle (20) arranged at one end of the key body (10) and connected with the key body (10), the key handle (20) being configured in a bent structure and capable of being formed in a bent manner; wherein the key handle (20) is enclosed to form a key hole (21), and the key (100) can be hung and installed through the key hole (21).

2. The key of claim 1, wherein The key handle (20) is connected with the key body (10) in an integrated structure.

3. The key of claim 1, wherein, The key handle (20) is in a circular ring shape.

4. The key of claim 1, wherein, The key (100) is made of stainless steel pipe.

5. The key of claim 1, wherein, A plurality of key teeth (11) are arranged on two opposite sides of the key body (10).

6. The key of claim 5, wherein, The plurality of key teeth (11) include a first row of key tooth groups (111) and a second row of key tooth groups (112), and the first row of key tooth groups (111) and the second row of key tooth groups (112) are arranged on two opposite sides of the key body (10). Along the extension direction of the key body (10), the key teeth (11) in the first row of key tooth groups (111) are arranged in a staggered manner relative to the key teeth (11) in the second row of key tooth groups (112).

7. A combination padlock, characterized in that The key (100) comprises a lock body (300), a lock beam (400), a lock tongue (500), a lock cylinder (200), and any one of claims 1 to 6; the lock cylinder (200) is rotatably installed in the lock body (300) and abuts against the lock tongue (500), and is used for controlling locking / unlocking of the lock beam (400) in the lock body (300). The key body (10) can be inserted and matched with the lock cylinder (200).

8. The combination lock of claim 7, wherein, The lock cylinder (200) is provided with a plug pin (220) in the lock cylinder hole (210), and a slot (201) is enclosed between the plug pin (220) and the hole wall (211) of the lock cylinder hole (210). The key body (10) can be inserted and matched with the slot (201).

9. The combination lock of claim 7, wherein, The lock cylinder (200) is provided with a positioning pin (230) at the position of the lock cylinder hole (210). The key body (10) is provided with an opening slot (12), which can be matched with the positioning pin (230) to limit the key body (10) and the lock cylinder (200) in the circumferential direction.

10. The combination according to claim 7, wherein the combination is a cylinder lock. The number of the lock tongue (500) is two.

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