Length-adjustable lock cylinder for attaching lock and lockset thereof

Abstract

The utility model discloses a length-adjustable lock cylinder for attaching a lock and a lockset thereof, which comprise a lock shell, a shifting support and a transmission key piece, and the transmission key piece is axially inserted into a lock attaching shaft piece; the front end face or / and the rear end face of the lock shell is / are coaxially provided with at least one or more shell end face extension pieces which are detachably installed according to the thickness of a door body, are connected in an overlapped mode and are used for increasing the total length of the front end face or the rear end face of the lock shell. A lock cylinder block is rotationally sleeved in each shell end face extension piece corresponding to the front end face of the lock shell; end face patch covers for sealing the outer end faces are installed on the outer side end faces of at least one or more shell end face extension pieces which are connected in an overlapped mode in a sealed and covered mode respectively. The shell end face extension pieces are detachably installed at the front end and the rear end of the lock shell, and the lock body can be installed on door bodies with different thicknesses after the length of the lock body is adjusted according to needs.

Description

[Technical field]

[0001] The utility model relates to a lock core technology, in particular to a lock core with adjustable length for a close-fitting lock and a lock set thereof. [Background technology]

[0002] There are many kinds of locks in the prior art. The lock core includes a lock core body, a lock core liner and a shift fork. When unlocking, the lock core liner is operated by a key to drive the shift fork to rotate, and the shift fork drives other mechanisms of the door lock to open the door lock. Since the lock core is fixed in length and cannot be freely changed in length; however, due to the different thicknesses of the doors, the requirements for the outer length and inner length of the lock core are different, which results in the lock core installed on the door also having to be of different lengths to match the thickness of the door. Because the thickness of the door body is not single and unchanging, when the thickness of the anti-theft door is different, the requirements for the outer length and inner length of the lock core are different, which results in the lock core installed on the door also having to be of different lengths to match the thickness of the door.

[0003] This means that when producing lock cores, the corresponding lock cores need to be customized according to the actual thickness of the door on site, and many different lengths of lock cores must be processed, which brings a lot of inconvenience to the production of lock cores, resulting in a wide variety of locks and difficulty in mass production; and the production cost is high and the inventory is large, causing the manufacturer to waste resources during production and increase costs. At the same time, it also brings a lot of inconvenience to sellers, and users are easily confused about choosing the length of the lock core when purchasing door locks. [Contents of the utility model]

[0004] The utility model provides a lock core with adjustable length for locking and a lock set thereof. The length of the lock core can be adjusted according to door bodies with different wall thicknesses and then directly installed, which is easy to operate and effectively improves the applicability of the lock core.

[0005] The technical solution adopted by at least one embodiment of the utility model is:

[0006] A lock core with adjustable length for a lock, suitable for doors of different thicknesses, comprising a lock housing, a pull and a transmission key, wherein the pull is installed in an open groove in the axial middle of the lock housing;

[0007] The rotating sleeve in the lock housing at the front side of the pull-pull is provided with a front lock core, and the rotating sleeve in the lock housing at the rear side of the pull-pull is provided with a locking shaft, and the transmission key blade is installed on the locking shaft along the axial pin;

[0008] The front face or the rear face of the lock shell is coaxially superimposed with at least one or more shell end face extension pieces which are detachably installed according to the thickness of the door body and are superimposed and connected to each other, and are used to increase the overall length of the front face or the rear face of the lock shell. Each of the shell end face extension pieces corresponding to the front face of the lock shell is rotatably fitted with a lock block which is connected with mutually superimposed bayonet pins and cooperates with the coaxial bayonet pin of the front lock core;

[0009] At least one or more of the superimposed and connected shell end face extension pieces are also covered with end face patch covers that seal the outer end faces.

[0010] Preferably, a first pin connection groove is recessed at the end face of the lock shell and cooperates with the pin of the adjacent shell end face extension piece; the butt joint surfaces of the two superimposed shell end face extension pieces are respectively provided with a first pin head and a second pin connection groove for mutual pin cooperation between the two, and the first pin head on the shell end face extension piece adjacent to the end face of the lock shell is inserted into the first pin connection groove.

[0011] Preferably, a second pin head is protruding from the inner end surface of the end surface patch cover and is used for pinning and installing in a second pin connection groove on the adjacent shell end surface extension piece.

[0012] Preferably, the shell end face extension piece corresponding to the second pin connection groove is also radially threadedly connected with a countersunk screw for locking the second pin head.

[0013] Preferably, countersunk screws for locking the first pin head are respectively threadedly connected in the radial direction of the lock housing corresponding to the first pin connection groove and in the radial direction of the housing end surface extension piece corresponding to the second pin connection groove.

[0014] Preferably, a clamping block and an embedding groove for coaxially engaging with each other are provided between the docking surfaces of all the lock core blocks and the front lock core, and the clamping block is arranged in the docking groove formed by the depression at the end of all the lock core blocks.

[0015] Preferably, the thickness of each shell end face extension piece is the same or different, and the thickness of the corresponding locking block is the same or different.

[0016] A lock adopts the above-mentioned length-adjustable lock core for stick locking.

[0017] The beneficial effects of the utility model are:

[0018] The utility model is provided with one or several shell end face extension pieces which are overlapped and connected with each other and are used to increase the overall length of the lock shell at the front and rear end faces of the lock shell respectively. When in use, due to the different thicknesses of the shell end face extension pieces, the shell end face extension pieces and the lock core blocks can be selectively increased or decreased according to the different thicknesses of the door walls. The overlap of one or more different or same thicknesses can achieve the goal of using a universal standard lock core and freely adjusting the length of the lock core according to the thickness of the door panel to match doors of different thicknesses. The utility model is simple to operate and easy to assemble, so that the locks can be uniformly configured, which is convenient for mass production and effectively reduces the production cost.

Brief Description of the Drawings

[0019] Figure 1 It is a schematic diagram of the exploded structure of the folding key and the lock core in the utility model;

[0020] Figure 2 It is a three-dimensional structural schematic diagram of the folding key and the lock core after being assembled in the utility model;

[0021] Figure 3 It is a cross-sectional structural schematic diagram of the lock core in the utility model;

[0022] Figure 4 It is a front-view stereoscopic enlarged structural schematic diagram of the shell end face extension piece in the utility model;

[0023] Figure 5 It is a rear-view stereoscopic enlarged structural schematic diagram of the shell end face extension piece in the utility model;

[0024] Figure 6 It is an enlarged schematic diagram of the right-side stereoscopic structure of the locking block in the utility model;

[0025] Figure 7 It is an enlarged schematic diagram of the left-side stereoscopic structure of the locking gallbladder block in the utility model. [Specific implementation method]

[0026] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is described below through the specific embodiments shown in the accompanying drawings. In the description of the utility model, it should be understood that the terms "first", "second", "third", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined as "first", "second", "third" may explicitly or implicitly include at least one of the features.

[0027] A lock core with adjustable length for a lock, suitable for locks such as Figures 1 to 7As shown, it is used on door bodies of different thicknesses, and comprises a lock shell 1, a puller 2 and a transmission key blade 3, wherein the puller 2 is installed in an open groove in the axial middle part of the lock shell 1; a rotating sleeve in the lock shell 1 on the front side of the puller 2 is provided with a front lock core 4, and a rotating sleeve in the lock shell 1 on the rear side of the puller 2 is provided with a lock shaft 5, the transmission key blade 3 is installed on the lock shaft 5 along the axial direction, and a folding key 6 for unlocking is adapted on the front lock core 4; the front end face and the rear end face of the lock shell 1 are respectively coaxially superimposed with three pieces of different thicknesses, which can be detachably installed and superimposed and connected with each other according to the thickness of the door body, and are used to increase the front end face or the rear end face of the lock shell 1 The shell end face extension piece 7 of the overall length of the lock shell 1 is provided. In this embodiment, the thickness of the three shell end face extension pieces 7 is 5mm, 10mm and 20mm respectively; each shell end face extension piece 7 corresponding to the front end face of the lock shell 1 is respectively rotatably mounted with a lock block 8 which is connected by mutually superimposed bayonet pins and cooperates with the coaxial bayonet pin of the front lock core 4. In this embodiment, the thickness of the corresponding three lock blocks 8 is 5mm, 10mm and 20mm respectively; and the outer end face of the outermost shell end face extension piece 7 is also respectively covered with an end face patch cover 9 which seals the outer end face, and the thickness of the end face patch cover 9 is 2mm. When the rear end face of the lock shell 1 is provided with a shell end face extension piece 7 for increasing the overall length of the rear end face of the lock shell 1, the transmission key piece 3 directly passes through the lock core hole on the lower side of the shell end face extension piece 7 and cooperates with the end pin of the lock shaft 5.

[0028] like Figure 1 , Figures 4 to 7 As shown, the front and rear end surfaces of the lock housing 1 are respectively recessed with first pin-joining grooves 10 for pin-matching with the adjacent shell end face extension piece 7; wherein, the butt joint surfaces of the two superimposed shell end face extension pieces 7 are respectively provided with first pin heads 11 and second pin-joining grooves 12 for pin-matching between the two, and the first pin heads 11 on the shell end face extension piece 7 adjacent to the end face of the lock housing 1 are inserted into the first pin-joining groove 10; the inner end face of the end face patch cover 9 is also protruding with a second pin head 13 for pin-joining in the second pin-joining groove 12 on the adjacent shell end face extension piece 7. Moreover, the radial direction of the lock housing 1 corresponding to the first pin-joining groove 10 and the radial direction of the shell end face extension piece 7 corresponding to the second pin-joining groove 12 are respectively threadedly connected with countersunk screws 14 for locking the first pin head 11 or the second pin head 13. In addition, the upper and lower sides of the second pin-joining groove 12 are respectively provided with axial positioning holes 15 along the axial direction for fixing the shell end face extension pieces 7 which are stacked on each other through axially penetrated pins.

[0029] like Figure 1 , Figures 4 to 7 As shown, a clamping block 16 and an embedding groove 17 for coaxial engagement with each other are provided between the docking surfaces of all the lock core blocks 8 and the front lock core 4. The clamping block 16 on the lock core block 8 engages with the embedding groove 17 on the superimposed and docked lock core block 8, and the clamping block 16 is arranged in the docking groove 80 formed by the depression at the end of all the lock core blocks 8.

[0030] When in use, the same or different numbers of shell end extensions and lock core blocks can be selectively added or subtracted according to the different thicknesses of the door walls, as well as the shell end extensions and lock core blocks of different thicknesses. This allows a universal standard lock core to be used, and the length of the lock core to be freely adjusted according to the thickness of the door panel, so as to match doors of different thicknesses.

[0031] The above-described embodiments are only preferred embodiments of the present invention and are not intended to limit the scope of implementation of the present invention. Therefore, any equivalent changes made based on the shape, structure and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A lock core with adjustable length for a close-fitting lock, suitable for doors of different thicknesses, comprising a lock housing, a pull and a transmission key, wherein the pull is installed in an open slot in the axial middle of the lock housing; characterized in that: The rotating sleeve in the lock housing at the front side of the pull-pull is provided with a front lock core, and the rotating sleeve in the lock housing at the rear side of the pull-pull is provided with a locking shaft, and the transmission key blade is installed on the locking shaft along the axial pin; The front face or the rear face of the lock shell is coaxially superimposed with at least one or more shell end face extension pieces which are detachably installed according to the thickness of the door body and are superimposed and connected to each other, and are used to increase the overall length of the front face or the rear face of the lock shell. Each of the shell end face extension pieces corresponding to the front face of the lock shell is rotatably fitted with a lock block which is connected with mutually superimposed bayonet pins and cooperates with the coaxial bayonet pin of the front lock core; At least one or more of the superimposed and connected shell end face extension pieces are also covered with end face patch covers that seal the outer end faces.

2. The length-adjustable lock cylinder for a stick lock according to claim 1, characterized in that: The lock shell end face is recessed with a first pin connection groove that cooperates with the pin of the adjacent shell end face extension piece; the docking surfaces of the two superimposed shell end face extension pieces are respectively provided with a first pin head and a second pin connection groove that facilitate the mutual pin cooperation between the two, and the first pin head on the shell end face extension piece adjacent to the lock shell end face is inserted into the first pin connection groove.

3. The length-adjustable lock cylinder for a stick lock according to claim 2, characterized in that: A second plug head is also protruding from the inner end surface of the end surface patch cover and is used for plugging and installing in a second pin connection groove on the adjacent shell end surface extension piece.

4. The length-adjustable lock cylinder for a stick lock according to claim 3, characterized in that: The shell end face extension piece corresponding to the second pin connection groove is also threadedly connected in the radial direction with a countersunk screw for locking the second pin head.

5. The length-adjustable lock cylinder for a stick lock according to claim 2, characterized in that: The radial direction of the lock housing corresponding to the first pin connection groove and the radial direction of the housing end surface extension piece corresponding to the second pin connection groove are respectively threadedly connected with countersunk screws for locking the first pin head.

6. The length-adjustable lock cylinder for a stick lock according to claim 1, characterized in that: A clamping block and an embedding groove for coaxially engaging with each other are also provided between the docking surfaces of all the lock core blocks and the front lock core, and the clamping block is arranged in the docking groove formed by the depression at the end of all the lock core blocks.

7. The length-adjustable lock cylinder for a stick lock according to claim 1, characterized in that: The thickness of each shell end face extension piece is the same or different, and the thickness of the corresponding locking block is the same or different.

8. A lock, characterized in that: The lock adopts a length-adjustable lock core for close locking as described in any one of claims 1 to 7.

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