CN211038120U - Lock cylinder protection device - Google Patents

Abstract

The utility model relates to a lock core protector. At present, lock cylinder protection devices are arranged at two ends of a lock cylinder of a security door. The lock cylinder holes in the handle panel of the anti-theft door are different in size and have no unified standard, so that one lock cylinder protecting device can only be matched with one handle panel. Therefore, when the lock core is replaced, the problem that the protection device along with the new lock core is not matched with the original handle panel is generated. The technical scheme who proposes in the utility model is like this: the exposed portion of the cylinder guard is designed as a cover-like object that is larger than (most or even all of) the cylinder opening in the handle panel, and that is secured over the handle panel and covers the cylinder opening in the handle panel by accessory components located within the handle panel. Therefore, the novel lock cylinder protection device can be matched with most or even all handle panels.

Description

Lock cylinder protection device

Technical Field

The invention relates to a lock cylinder protection device.

Background

At present, lock cylinder protection devices are arranged at two ends of a lock cylinder of a security door. Because the lock core holes on the handle panels (higher than the surface of the door panel, provided with the lock core holes and the handle holes and playing a decorative role, for convenience of description, the handle panels are simply called as panels hereinafter) arranged at the inner side and the outer side of the anti-theft door are different in size, and have no uniform standard (although the size difference is not very large), and the existing lock core protection devices are exposed out of the panels from the inside to the outside, so that the lock core protection device can only be matched with one panel. Because lock core protector and panel are mostly with sheet metal stamping forming, and the size precision is all not too high, consequently can all leave great space between lock core hole (hereinafter for short panel lock core hole) on lock core protector and the panel, influence pleasing to the eye. For the above reasons, when the lock cylinder is replaced (especially when the lock cylinder is replaced with the lock cylinder with a different position of the key hole), the problem that the protection device along with the new lock cylinder is not matched with the original panel is caused.

In addition, in order to make the lock cylinder protection device consistent with the gap around the lock cylinder hole of the panel (so as not to be too unsightly), the position of the panel is often required to be adjusted when the lock cylinder protection device and the panel are installed, thereby bringing inconvenience to installation.

Disclosure of Invention

The invention aims to design a novel lock cylinder protection device which can be matched with most or even all panels. And the gap between the lock cylinder protection device and the lock cylinder hole of the panel, which influences the appearance, can be eliminated (shielded).

Through further improvement, the novel lock cylinder protection device can be more convenient to install.

The purpose of the invention is realized as follows: the exposed part (the part exposed out of the panel) of the lock cylinder protection device is designed into a cover-shaped object which is larger than the lock cylinder hole of the panel (can cover the lock cylinder hole), and the cover-shaped object is fixed (including clinging to) the panel through (by means of) accessory parts (including the extension part of the cover-shaped object to the panel) positioned in the panel (not exposed out of the panel) and covers the lock cylinder hole of the panel. By fixed to the panel is understood that it cannot be removed easily or without damage without opening (removing) the panel.

For convenience of description, the cover-shaped object is simply referred to as a protecting cover; the extension part of the cover-shaped object towards the panel is called a protective cover extension part for short; the accessory parts in the panel are simply called panel internal accessories or further called in-board accessories.

The novel lock cylinder protecting device formed by the protecting cover and the accessory in the panel can eliminate (shield) the gap between the original lock cylinder protecting device and the lock cylinder hole of the panel, which influences the appearance. If the protective cover is large enough, most or even all (various) panel lock core holes can be covered, so that the following effects can be achieved: a novel lock core protection device can be matched with most or even all panels.

As mentioned above, the in-board accessories of the novel lock cylinder protection device may be independent components, or may be some components including a protection cover extension, and the protection cover extension may be integrated with the protection cover, or may be combined with the protection cover by means of spot welding, fastening, or the like.

A protective cover positioning structure (device) can be arranged on the in-board accessory, so that the protective cover can be conveniently fixed at the right position of the panel.

In order to facilitate the installation, the novel lock cylinder protection device is provided with a protection cover with an automatic anchoring function. The specific construction and function of the protecting cover with automatic anchoring function is that the protecting cover extension is provided with a pop-up clamping device. The pop-up clamping member in the pop-up clamping device can have various forms, such as a spring sheet or a clamping pin which can be popped outwards (around) by an elastic element. The inclined plane/bevel edge which can play the role of a wedge is arranged at the position where one side (after installation) of the ejection clamping piece close to the protective cover can be contacted with the lower edge of the lock cylinder hole of the panel. To facilitate the insertion of the panel core hole, the other side of the ejector retainer may be provided with a ramp/bevel that may serve as a lead-in. The pop-up clamping device can enable the protective cover to have an automatic anchoring function. For convenience of description, the shield cover having the automatic anchoring function will be referred to as a self-anchoring shield cover hereinafter. When the self-anchored protective cover is installed in the panel lock core hole from outside to inside, the ejection clamping piece needs to be folded/contracted/retracted so as to conveniently plug the protective cover extension part and the ejection clamping piece into the panel lock core hole; in the process of loading, the ejecting clamping piece is bound by the panel lock core hole, the ejecting clamping piece cannot be ejected outwards, and when the loading is to be finished and the protective cover is to be attached to the panel, the ejecting clamping piece already passes through the panel lock core hole (is separated from the binding of the panel lock core hole) and then is ejected. Their beveled/beveled edges will catch on the inner edges of the panel lock cylinder holes. At this point, the protecting cover is pulled inwards (by the pop-up clip) to be tightly (fixedly) attached to the panel due to the wedge effect of the bevel/bevel. The self-anchored protective cover can be directly installed in the lock cylinder hole of the panel from the outside of the panel (after the panel is installed), and the installation is very convenient. And can be removed from the anchor guard cover only by retracting the outwardly sprung clip from within the panel.

The novel lock cylinder protecting device can also be provided with a guide positioning structure (device) for the lock cylinder on an in-board accessory, so that when the protecting cover is installed, the key hole position of the protecting cover can be conveniently aligned with the key hole of the lock cylinder, and the protecting cover can be kept in a correct position after being installed.

A clip for reinforcing/clamping the lock cylinder may also be provided in the in-board attachment of the new lock cylinder guard. A structure (member) for fixing (fastening/catching/hooking) the protective cover, such as a screw hole, a ratchet, etc., may also be provided on the clip.

Drawings

Fig. 1 is a schematic perspective (exploded) view of a novel lock cylinder protection device according to a first embodiment. In the figure: 1-rotating the sheet; 2-a protective cover; 3-panel (left half cut away for other parts not to be obscured); 4-clamping screws; 5-a clip screw; 6-panel lock cylinder hole; 7-positioning a step; 8-positioning the boss; 9-a fastening plate; 10-a lock cylinder; 11-a lock cylinder clip; 12-core hole on door panel.

Fig. 2 is an assembly diagram of the second embodiment. The combined self-anchored protective cover is arranged above the panel. In the figure: 1-rotating the sheet; 2-a protective cover; 2 c-a shield cap extension; 3-a panel; 6-panel lock cylinder hole; 10-a lock cylinder; 11-a lock cylinder clip.

Fig. 3 is a perspective (exploded) view of a self-anchoring protective cover according to the second embodiment. In the figure: 1-rotating the sheet; 2-a protective cover; 2 b-rotor holes; 2 c-a shield cap extension; 2 d-lock core guiding part; 2 f-a spring plate clamping groove; 13-a spring plate; 13 b-upper bayonet; 13 c-a latch; 13 d-bevel edge; 14-rotor snap ring.

Fig. 4 is a schematic view of the back of the self-anchoring cover. In the figure: 1-rotating the sheet; 2 d-lock core guiding part; 2 g-bulge; 14-rotor snap ring.

Fig. 5 is a perspective (exploded) view of another self-anchoring protecting cover according to the third embodiment. In the figure: 1-rotating the sheet; 2-a protective cover; 2 b-rotor holes; 13-a spring plate; 13 b-upper bayonet; 13 e-lower bayonet; 15-a spring plate seat; 15 b-a rotor holder; 15 c-spot welding jaws; 15 d-boss; 15 e-spring clip.

Fig. 6 is an assembly schematic diagram of the fourth embodiment, a simple novel lock cylinder protection device. In the figure: 2-a protective cover; 2 h-counter bore; 3-a panel; 10-a lock cylinder; 11 k-a lock cylinder clamp with a screw hole; 11 b-a screw hole; 12-a lock cylinder hole on the door panel; 16-a manhole cover; 17-screw.

Detailed Description

The invention is further described below with reference to the accompanying drawings.

The first embodiment is as follows:

referring to fig. 1, one end of a lock cylinder 10 is exposed from a lock cylinder hole 12 of a door panel, and a lock cylinder clip 11 further reinforces the lock cylinder 10 by a clip screw 5. Above the panel 3, the protecting cover 2 with the rotor plate 1 is obviously larger than the lock core hole 6 of the panel. Below the panel (inside the panel), the positioning projections 8 on the fastening plate 9 can be engaged with corresponding positioning platforms (not shown) on the back of the protecting cover. The fastening plate 9 can form a pair of clamping plates with the protecting cover 2 through the clamping screw 4 and a screw hole (not shown) on the back of the protecting cover. The clamping screw 4 is tightened, and the protective cover 2 is firmly fixed on the panel 3; at this time, the positioning step 7 on the fastening plate 9 is also clamped at the periphery of the lock cylinder hole 6 of the panel, so that the locking step cannot move. Different steps of the positioning step 7 can be matched with panel lock core holes with different sizes; the protective cover 2 can also cover panel lock core holes of different sizes. Since there is no gap, the protective cover is not visible even if it is slightly offset from the panel.

Example two:

referring to fig. 2, there is a new lock cylinder guard device using a self-anchored guard cover. Above the panel 3 is an assembled self-anchoring protective cover. The rotor plate 1 is arranged on the protecting cover 2, and the elastic sheet 13 is arranged on the protecting cover extension part 2 c. When the self-anchoring protective cover is installed, as long as the end of the elastic sheet 13 is pinched to fold the elastic sheet, the protective cover extension part 2c and the elastic sheet 13 can be plugged into the panel lock cylinder hole 6, and simultaneously, the lock cylinder guide part 2d (see fig. 4) is aligned with the end of the lock cylinder 10, and then the protective cover 2 is pressed until the elastic sheet 13 is popped out (opened) from the panel 3.

Referring to fig. 3 and 4, the shield cover 2 in the present embodiment is integral with the shield cover extension 2 c. The manufacturing method and the material can be various, for example, metal parts can be manufactured by using the methods of die casting, cold extrusion, metal powder injection molding and the like, and engineering plastic parts can be manufactured by using the methods of injection molding and the like. As can be seen from fig. 3 and 4, after the rotor 1 is fitted into the rotor hole 2b, it is caught by the rotor catch ring 14 which is fitted later and does not fall off. The elastic sheet 13 is arranged on the protective cover extension part 2c, the clamping tenon 13c of the elastic sheet 13 is inserted into the elastic sheet clamping groove 2f, and the upper clamping opening 13b of the elastic sheet 13 is clamped by the bulge 2g, so that the elastic sheet cannot shake left and right; the inclined edges 13d are close to both ends of the elastic sheet. A plug clip 11 is also provided in this embodiment to reinforce the plug 10.

The rotor plate on the protective cover can be omitted, the protective cover without the rotor plate can be matched with a lock cylinder with a round pipe at two ends higher than one section, and the end of the lock cylinder can directly extend out of the rotor plate hole 2b of the protective cover.

Example three:

referring to fig. 5, this is a self-anchoring cover stamped from sheet metal. The protective cover 2 and the spring seat 15 are both formed by punching and molding metal plates, and the two parts can be welded into a whole through the spot welding claws 15c, so that the spring seat 15 can also be regarded as an extension part of the protective cover. The spring sheet seat 15 is provided with a punched boss 15d, a punched spring sheet clamping hook 15e and a punched rotating sheet support 15b slightly folded inwards. As can be seen from the figure, the rotor 1 is received in the rotor hole 2b and can be blocked by the rotor holder 15b, so as not to fall off. The elastic sheet 13 is arranged on the elastic sheet seat 15, the lower bayonet 13e of the elastic sheet 13 is clamped on the elastic sheet clamping hook 15e of the elastic sheet seat 15, and the upper bayonet 13b of the elastic sheet 13 is clamped by the boss 15d, so that the elastic sheet cannot shake left and right.

The rotor plate 1 in this embodiment can be installed in the rotor plate hole 2b before the protective cover 2 and the spring plate seat 15 are welded into a whole; it may be loaded later. After the protective cover 2 and the spring seat 15 are welded into a whole, the rotor plate 1 can be inserted into the rotor plate hole 2b from the lower surface of the spring seat 15. In the process of plugging, when the rotor 1 passes through the rotor support 15b, the rotor support folded inwards can be unfolded, and after the rotor 1 passes through the rotor support 15b and enters the rotor hole 2b, the rotor support 15b can be folded inwards due to elasticity, so that the rotor 1 can be blocked by the rotor support 15b and cannot fall off.

The inner ring of the dome 15 in this embodiment matches the shape of the lock cylinder, and can function as the lock cylinder guide portion 2d in the second embodiment.

Example four:

referring to fig. 6, the novel lock cylinder protection device is simple. As can be seen from the figure, one end of the key cylinder 10 is exposed from the key cylinder hole 12 of the door panel, and the key cylinder 10 is further reinforced by a key cylinder clip 11k having a screw hole. The protecting cover 2 is provided with a counter bore 2h, and a screw 17 can pass through the counter bore 2h and be screwed into the screw hole 11b, so that the protecting cover 2 is tightly attached to the panel. The counter bore 2h can be plugged by the counter bore cover 16, so that the screw is not exposed to the outside and the appearance is not influenced. The difficulty of disassembly can be increased if special slotted screws are used. The novel simple lock cylinder protection device is particularly suitable for being used on the indoor side of a door.

Claims (5)

1. A cylinder guard characterized by: the exposed protective cover is larger than the lock core hole of the panel; the protective cover is fixed on the panel through a clamping plate formed by the protective cover and the accessory in the panel.

2. The cylinder guard of claim 1, wherein: the accessory in the panel is also provided with a positioning structure which is convenient for fixing the protective cover at the correct position of the panel; or on its plate inside attachment, also there is guiding orientation structure to the lock core; or on its in-board attachment, also have positioning structure and guide positioning structure to the lock core that is convenient for fix the protective cover in the right position of the faceplate at the same time.

3. The cylinder guard of claim 1 or 2, characterized by: the in-board accessory is provided with a pop-up clamping device, and one side of the pop-up clamping piece in the pop-up clamping device is provided with an inclined plane/inclined edge which can play the role of an inclined wedge.

4. The cylinder guard of claim 1 or 2, characterized by: the device further comprises a lock cylinder clip, or the device further comprises a lock cylinder clip provided with formations for fixing the protective cover.

5. The cylinder guard of claim 3, wherein: the device further comprises a lock cylinder clip, or the device further comprises a lock cylinder clip provided with formations for fixing the protective cover.

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