CN108798248B - Lock head structure, door lock and safety door - Google Patents
Lock head structure, door lock and safety door Download PDFInfo
- Publication number
- CN108798248B CN108798248B CN201810526507.9A CN201810526507A CN108798248B CN 108798248 B CN108798248 B CN 108798248B CN 201810526507 A CN201810526507 A CN 201810526507A CN 108798248 B CN108798248 B CN 108798248B
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- lock
- lock head
- sheath
- inner sheath
- outer sheath
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B15/00—Other details of locks; Parts for engagement by bolts of fastening devices
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B9/00—Lock casings or latch-mechanism casings ; Fastening locks or fasteners or parts thereof to the wing
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- Mechanical Engineering (AREA)
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- Lock And Its Accessories (AREA)
Abstract
The invention provides a lock head structure, a door lock with the same and a safety door with the door lock, wherein the lock head structure comprises a lock head; the lock head inner sheath is sleeved on the lock shell of the lock head, a locking hole is formed in the cylindrical outer peripheral wall of the lock head inner sheath, and the locking hole is suitable for a fastener to pass through and be matched with the fastener to connect the lock head inner sheath and the lock shell; the lock head outer sheath is sleeved outside the lock head inner sheath in a manner of covering the locking hole, and the maximum radial gap between the lock head outer sheath and the lock head inner sheath is smaller than the difference value between the axial length of the fastener and the wall thickness of the lock head inner sheath. The lock head structure can prevent the fastener on the lock head from falling off by vibration.
Description
Technical Field
The invention relates to the technical field of locks, in particular to a lock head structure, a door lock and a safety door.
Background
The outer end of the lock head on the anti-theft door is exposed outside and is easy to be damaged by various violence or be opened by technical illegality. Therefore, the outer sheath is arranged on the inner sheath of the lock head, which can play a certain role in protecting the lock head and reduce violent injury to a certain extent.
The prior lock head outer sheath structure generally comprises a cylindrical inner sheath part sleeved on the outer peripheral wall of a lock head lock shell and a front sheath part extending from the cylindrical inner sheath to the front end part of the lock head lock shell, wherein the front sheath part is bent towards the front end surface of a lock cylinder of the lock head and extends to the vicinity of a key hole to form a panel for covering the lock cylinder, and the cylindrical inner sheath part and the outer peripheral wall of the lock head lock shell are radially provided with fixed mounting holes which are fixedly connected through radial insertion of a fixing part. In the prior art, the front sleeve part and the cylindrical inner sheath part are integrally formed, and after the lock head is installed from the rear part of the lock body, an outer sheath is sleeved on the front sleeve part and is covered outside the inner sheath of the lock head. Four wedge-shaped protruding blocks are arranged on the inner wall of the existing outer sheath and are clamped in gaps between the front sleeve part and the inner sheath of the lock head. In any mode, when the exposed part of the outer sheath of the lock head is twisted strongly, the outer sheath cannot idle on the lock head, the fixing part can be shaken loose and fall off by means of an external vibration tool, and at the moment, the outer sheath of the lock head is easy to be taken off, so that the lock core is directly exposed, and the lock is unprotected.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is to overcome the defect that the outer sheath fixing part of the lock head in the prior art is easy to fall off by vibration, so as to provide a lock head structure, a door lock and a safety door which can prevent the fixing part from falling off by vibration.
The invention provides a lock head structure, which comprises
The lock head is suitable for being arranged in the lock body; the lock head inner sheath is sleeved on the lock shell of the lock head, a locking hole is formed in the cylindrical outer peripheral wall of the lock head inner sheath, and the locking hole is suitable for a fastener to pass through and be matched with the fastener to connect the lock head inner sheath and the lock shell;
the lock head outer sheath is sleeved outside the lock head inner sheath in a manner of covering the locking hole, and a gap radial gap between the lock head outer sheath and the lock head inner sheath is smaller than a difference value between the axial length of the fastening piece and the wall thickness of the lock head inner sheath.
The lock head outer sheath is attached to the lock head inner sheath.
The lock head outer sheath can be sleeved outside the lock head inner sheath in a rotating way relative to the lock head inner sheath.
One end of the lock head outer sheath, which is close to the lock body, is arranged on the lock body.
One end of the lock head outer sheath, which is close to the lock body, extends outwards along the radial direction to form a convex edge;
the lock body is provided with a limiting groove which can be used for inserting the convex edge and limiting the axial movement of the lock head outer sheath relative to the lock head inner sheath.
The limiting grooves are formed in two positions, and are oppositely arranged at two ends of the diameter of the protruding edge.
The lock body is close to the outward extension of one end of tapered end oversheath has the limiting plate, the limiting plate includes by the terminal surface of the lock body is followed the axial orientation of tapered end oversheath the tapered end oversheath extends out the axial plate, and by the axial plate is followed the radial plate that the tapered end oversheath is close to the tapered end oversheath extends out, the axial plate the footpath board reaches enclose between the terminal surface of the lock body the spacing groove.
The lock head inner sheath comprises a first sleeve body which is sleeved on the outer peripheral wall of the lock shell and is close to the lock body, and the outer peripheral wall of the first sleeve body is provided with the locking hole.
The lock head inner sheath further comprises a second sheath body which covers one end of the lock shell away from the lock body and is sleeved on the lock shell, and the outer peripheral wall of the second sheath body is provided with the locking hole.
The second sleeve body covers the end face of the lock shell and is provided with an anti-drilling part.
The invention provides a door lock which comprises the lock head structure and a lock body provided with the lock head structure.
The invention provides a safety door, which comprises a door plate capable of being provided with the door lock.
The technical scheme of the invention has the following advantages:
1. the lock head structure provided by the invention comprises a lock head suitable for being installed in a lock body and a lock head inner sheath sleeved outside a lock shell of the lock head, wherein a locking hole is formed in the cylindrical outer peripheral wall of the lock head inner sheath, and the locking hole is suitable for a fastener to pass through and be matched with the fastener to connect the lock head inner sheath and the lock shell; and the lock head outer sheath is sleeved outside the lock head inner sheath in a manner of covering the locking hole, and the radial gap between the lock head outer sheath and the lock head inner sheath is smaller than the difference value between the axial length of the fastener and the wall thickness of the lock head inner sheath. The lock head oversheath that sets up outside the lock head oversheath can cover all locking holes to its clearance radial clearance is less than the axial length of fastener with the difference of lock head oversheath wall thickness, even utilize outside to utilize vibrations instrument to loosen the fastener from locking Kong Zhongzhen for the fastener slides to locking hole outside direction, but because the restriction of lock head oversheath, the fastener still is in the lock shell blind hole part at the locking hole, can not continue to slide outward, make the fastener remain the relation of connection between lock head oversheath and the lock shell all the time, therefore the lock head oversheath will not be taken off from the lock head, the integrality of lock head structure has been protected, prevent exposing lock core outside directly and make the tool to lose the protection.
2. According to the lock head structure provided by the invention, the lock head outer sheath can be rotatably sleeved outside the lock head inner sheath relative to the lock head inner sheath, so that after the exposed part of the lock head outer inner sheath is clamped by a powerful tool, the torque applied by the tool only can enable the lock head outer sheath to idle relative to the lock head inner sheath due to no circumferential constraint, and the condition that a fastener on the lock head inner sheath loses protection and then the lock head is in integral failure due to torsional damage of a connecting mode of a wedge block clamped on the inner sheath by a clamp in the prior art is avoided.
3. According to the lock head structure provided by the invention, one end of the lock head outer sheath, which is close to the lock body, is arranged on the lock body. The outer sheath of the lock head extends outwards along the radial direction to form a convex edge at one end close to the lock body; the lock body is provided with a limiting groove which can be used for inserting the convex edge and limiting the axial movement of the outer sheath of the lock head relative to the inner sheath of the lock head. The protruding edge on the lock outer sheath can cover the gap between the lock and the lock body, so that the technical unlocking tool is prevented from entering the lock from the gap to be technically unlocked, and the safety of the lock is effectively improved. The limiting groove on the lock body limits the axial movement of the lock head outer sheath relative to the lock head inner sheath, so that the lock head outer sheath can be prevented from being pulled out from the outer side, the fastener on the lock head inner sheath is ensured to be under the coverage of the lock head outer sheath, and the protection of the fastener is realized.
4. The invention provides a lock head structure, wherein a limiting plate is outwards extended from one end of a lock body close to an outer sheath of a lock head, the limiting plate comprises a shaft plate which is extended from the end face of the lock body towards the outer sheath of the lock head along the axial direction of the outer sheath of the lock head, and a radial plate which is extended from the shaft plate towards the outer sheath of the lock head along the radial direction of the outer sheath of the lock head, and limiting grooves are formed between the shaft plate, the radial plate and the end face of the lock body. The cooperation of the diameter plate and the shaft plate provides a limit groove for the rotation of the outer sheath of the lock head relative to the inner sheath of the lock head for the convex edge of the outer sheath of the lock head, and simultaneously limits the axial and circumferential movement range of the outer sheath of the lock head relative to the inner sheath of the lock head. The radial plate can press the convex edge of the outer sheath of the lock head to prevent the outer sheath of the lock head from being pulled outwards, thereby effectively protecting the lock head.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a cross-sectional view of a lock cylinder structure in embodiment 1 of the present invention;
FIG. 2 is an enlarged view of a portion of the fastener mounting structure of embodiment 1 of the present invention;
FIG. 3 is a schematic diagram showing the connection between the lock head outer sheath and the lock body in embodiment 1 of the present invention;
fig. 4 is an assembly schematic diagram of a door lock according to embodiment 2 of the present invention.
Fig. 5 is a schematic view showing the installation of the door lock on the door panel in the embodiments 2 and 3 of the present invention.
Reference numerals illustrate:
1-a lock head; 2-a fastener; 3-a lock inner sheath; 4-a lock outer sheath; 5-a lock body; 6-door panel
11-a lock shell; 21-a locking hole; 31-a first sleeve; 32-a second sleeve; 321-an anti-drilling part;
41-convex edge; 51-limiting plates; 511-an axle plate; 512-diameter plate; 513-limit grooves;
61-a lock head hole; 62-lock body groove.
Detailed Description
The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings.
Example 1
As shown in fig. 1, the present embodiment provides a lock head structure including a lock head 1, a lock head inner sheath 3 and a lock head outer sheath 4.
The lock head 1 is composed of an outer lock shell 11 and a lock cylinder therein. The lock head inner sheath 3 is sleeved on the lock shell 11 of the lock head 1, as shown in fig. 2, a through hole part arranged on the cylindrical outer peripheral wall of the lock head inner sheath 3 and a blind hole part formed on the lock shell 11 form a locking hole 21, and the locking hole 21 is suitable for allowing a rivet serving as a fastener 2 to pass through and be matched with the fastener 2 to connect the lock head inner sheath 3 and the lock shell 11. The lock head outer sheath 4 is sleeved outside the lock head inner sheath 3 and covers the locking hole 21, and the maximum radial gap b between the lock head outer sheath 4 and the lock head inner sheath 3 is smaller than the difference value between the axial length a of the rivet and the wall thickness c of the lock head inner sheath. Even if the fastener 2 is vibrated and loosened from the locking hole 21 by using a vibration tool outside, so that the fastener 2 slides towards the outer direction of the locking hole 21, due to the limitation of the lock cylinder outer sheath 4, the fastener 2 still has a part positioned in the blind hole part of the lock shell 11 on the locking hole 21 and cannot slide outwards, so that the fastener 2 always keeps the connection relationship between the lock cylinder inner sheath 3 and the lock shell 11, and therefore, the lock cylinder inner sheath 3 cannot be removed from the lock cylinder 1, the structural integrity of the lock cylinder is protected, and the lock cylinder is prevented from being directly exposed to the outside to cause the lock to lose protection.
The ideal implementation mode of the embodiment is that the lock head outer sheath 4 is attached to the lock head inner sheath 3, so that the movable space of the fastener 2 is further reduced, and the stable connection between the lock head inner sheath 3 and the lock shell 11 is ensured.
As an alternative embodiment, the fastener 2 in this embodiment may also be configured as a threaded connection, such as a countersunk bolt, and the through hole in the inner sheath 3 of the corresponding lock head is configured as a counter bore, and the blind hole in the lock housing 11 is configured with threads. The fastener 2 of this kind of structure uses threaded connection, further promotes the connection reliability for the fastener 2 is shaken loose required time extension by vibrations instrument, and the degree of difficulty that fastener 2 drops is increaseed, and then has promoted the security of tapered end structure.
The lock head outer sheath 4 in this embodiment can rotationally cover the lock head inner sheath 3 with respect to the lock head inner sheath 3, so that after the exposed part of the lock head outer sheath 4 is clamped by a powerful tool, the torque force exerted by the tool can only make the lock head outer sheath 4 idle relative to the lock head inner sheath 3 due to no circumferential constraint, thereby avoiding the condition that the connecting mode of the wedge block clamping on the inner sheath is damaged by torsion of the clamp in the prior art, and causing the loss of protection of the fastener 2 on the lock head inner sheath 3 to cause the integral failure of the lock head 1.
As shown in fig. 3 and 4, one end of the lock head outer sheath 4, which is close to the lock body 5, is mounted on the lock body 5. In this embodiment, two protruding edges 41 with symmetrical upper and lower ends are extended radially outwards at one end of the lock head outer sheath 4, which is close to the lock body 5. The lock body 5 is formed with two limiting grooves 513 into which the flanges 41 are inserted and which limit the axial movement of the lock cylinder outer sheath 4 relative to the lock cylinder inner sheath 3.
As shown in fig. 3 and 4, a side of the lock body 5, which is close to one end of the lock head outer sheath 4 having the flange 41, is provided with a limiting plate 51 protruding outwards, in this embodiment, the limiting plate 51 is formed by stamping a side plate portion of the corresponding side lock body 5, and a gap between the formed limiting plate 51 and the corresponding side plate of the lock body 5, into which the flange 41 is inserted, forms a limiting groove 513, as shown in fig. 1, which is oppositely arranged at two ends of the diameter of the flange 41. The limit groove 513 defines the axial and circumferential range of motion of the lock cylinder outer sheath 4 relative to the lock cylinder inner sheath 3. In this embodiment, as shown in fig. 3, the limiting plate 51 includes a shaft plate 511 extending from an end surface of the lock body 5 toward the lock head outer jacket 4 along an axial direction of the lock head outer jacket 4, and a radial plate 512 extending from the shaft plate 511 along a radial direction of the lock head outer jacket 4 near the lock head outer jacket 4, and a limiting groove 513 is formed by surrounding the shaft plate 511, the radial plate 512 and a side plate of the lock body.
As an alternative embodiment, the two limiting plates 51 in this embodiment may also be stretched along the circumference of the mounting hole on the lock body 5 to form a semicircular limiting arc plate, where the opening direction of the limiting arc plate faces the mounting direction of the lock body 5 when the door panel 6 is inserted into the lock body, so as to enable the protruding edge 41 to enter the arc limiting groove surrounded by the limiting arc plate and the lock body 5 when the lock body is mounted into the door panel 6. The arc-shaped limiting groove formed by the limiting arc plate with the structure has a certain guiding effect, the movable space of the protruding edge 41 in the arc-shaped limiting groove is further restrained, so that when the lock head outer sheath 4 idles around the lock head inner sheath 3, the eccentricity of the lock head outer sheath 4 and the lock head inner sheath 3 is shortened, the variation range of the radial clearance b between the lock head outer sheath 4 and the lock head inner sheath 3 is reduced, the movable distance of the rivet is further limited, and the structural integrity of the lock head is ensured.
The protruding edge 41 can translate into the two limit grooves 513 from any side against the surface of the lock body 5, so that the door lock is convenient to install on the door plate 6. Since the opening of the lock body groove 62 on the door panel 6 is usually formed on the side edge of the door panel 6, the lock body 5 is inserted from the side edge of the door panel 6 during installation, so that the two limit plates 51 which are arranged vertically symmetrically provide a channel for the protruding edge 41 to enter, and the protruding edge 41 of the lock head outer sheath 4 simultaneously enters the limit grooves 513 formed by the two limit plates 51 during the process of loading the lock body 5 into the door panel 6.
The specific structural form of the lock head inner sheath 3 may be various, in this embodiment, as shown in fig. 1, the lock head inner sheath 3 includes a first sleeve body 31 sleeved on the outer peripheral wall of the lock shell 11 near the lock body 5, and a locking hole 21 is provided on the outer peripheral wall of the first sleeve body 31. The lock inner sheath 3 further comprises a second sleeve body 32 which is sleeved on the lock shell 11 to cover one end of the lock shell 11 far away from the lock body 5, and a locking hole 21 is arranged on the peripheral wall of the second sleeve body 32. The second sleeve 32 is provided with an anti-drilling portion 321 on an end surface covering the lock case 11. Because the anti-drilling part 321 on the second sleeve body 32 is made of a material with higher hardness, such as manganese steel, the lock head inner sheath 3 is divided into the first sleeve body 31 and the second sleeve body 32, and different materials can be used for manufacturing the lock head inner sheath 3 according to the protection requirements of different parts of the lock head 1, so that the cost is reduced.
As an alternative specific structural form of the lock head inner sheath 3, the lock head inner sheath 3 can also be made into a sleeve with an end face, and a key hole is reserved on the end face. An anti-drilling sheet with higher hardness is additionally arranged between the end face of the sleeve and the lock head 1. The sleeve is provided with a through hole and a locking hole 21 formed by the blind hole part of the lock shell 11 for inserting a rivet, so that the lock head inner sheath 3 is fixed with the lock shell 11. The lock inner sheath 3 with the structure has strong integrity and is simple and convenient to install.
Example 2
As shown in fig. 4 and 5, this embodiment provides a door lock, which includes the lock head structure described in embodiment 1 and a lock body 5 to which the lock head structure can be mounted, and mounting holes into which the lock head structure is mounted are provided on the lock body 5. The lock structure can be installed in the lock hole 61 of the door panel 6, and the end face of the lock structure faces outwards, and the key hole arranged on the end face of the lock structure is exposed. The lock body 5 may be received in the lock body slot 62.
Example 3
As shown in fig. 5, the present embodiment provides a security door, which includes the door lock described in embodiment 2, and a door panel 6 to which the door lock can be mounted, wherein a lock body groove 62 and a cylindrical lock head hole 61 are formed in the door panel 6, the lock body groove 62 is communicated with the lock head hole 61, and the lock head hole 61 is communicated with the outside on the outer surface of the door panel 6.
The process of installing the lock head structure on the door panel 6 in this embodiment is as follows:
firstly, the lock head outer sheath 4 is arranged in the lock head hole 61 of the door plate 6, so that the convex edge 41 is positioned in the lock body groove 62; step 2, then the lock body 5 is installed in the lock body groove 62, and the position of the lock body is adjusted, so that the limiting plate 51 is clamped outside the convex edge 41, the convex edge 41 is simultaneously positioned in the upper limit groove 513 and the lower limit groove 513, and the lock head outer sheath 4 can freely rotate in the upper limit groove 513 and the lower limit groove 513; and 3, fixing the lock head 1 with the lock head inner sheath 3 installed on the lock body 5 through the installation hole of the lock body 5, so that part of the lock head inner sheath 3 enters the lock head outer sheath 4, and installing the lock head structure on the door plate 6 is completed.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the invention.
Claims (10)
1. A lock head structure comprises
A lock head (1),
the lock head inner sheath (3) is sleeved on the lock shell (11) of the lock head (1), a locking hole (21) is formed in the cylindrical outer peripheral wall of the lock head inner sheath (3), and the locking hole (21) is suitable for a fastener (2) to penetrate through and be matched with the fastener (2) to connect the lock head inner sheath (3) with the lock shell (11);
characterized by further comprising:
the lock head outer sheath (4) is sleeved outside the lock head inner sheath (3) in a manner of covering the locking hole (21), and a radial gap between the lock head outer sheath (4) and the lock head inner sheath (3) is smaller than a difference value between the axial length of the fastener (2) and the wall thickness of the lock head inner sheath (3); one end, close to the lock body (5), of the lock head outer sheath (4) is arranged on the lock body (5), and a convex edge (41) extends outwards along the radial direction at one end, close to the lock body (5), of the lock head outer sheath (4); the lock body (5) is provided with a limiting groove (513) which can be used for inserting the convex edge (41) and limiting the axial movement of the lock head outer sheath (4) relative to the lock head inner sheath (3).
2. The lock head structure according to claim 1, wherein the lock head outer sheath (4) is attached to the lock head inner sheath (3).
3. A lock cylinder arrangement according to claim 1 or 2, characterized in that the lock cylinder outer jacket (4) is rotatably arranged outside the lock cylinder inner jacket (3) with respect to the lock cylinder inner jacket (3).
4. A lock cylinder structure according to claim 3, wherein the limiting grooves (513) are provided at two opposite ends of the diameter of the flange (41).
5. The lock head structure according to claim 4, wherein a limiting plate (51) is extended outwards from one end of the lock body (5) close to the lock head outer sheath (4), the limiting plate (51) comprises a shaft plate (511) extended from the end face of the lock body (5) towards the lock head outer sheath (4) along the axial direction of the lock head outer sheath (4), and a radial plate (512) extended from the shaft plate (511) towards the lock head outer sheath (4) along the radial direction of the lock head outer sheath (4), and the limiting groove (513) is formed between the shaft plate (511), the radial plate (512) and the end face of the lock body (5).
6. The lock head structure according to claim 5, wherein the lock head inner sheath (3) comprises a first sleeve body (31) sleeved on the outer peripheral wall of the lock shell (11) near the lock body (5), and the outer peripheral wall of the first sleeve body (31) is provided with the locking hole (21).
7. The lock head structure according to claim 6, wherein the lock head inner sheath (3) further comprises a second sheath body (32) covering the lock housing (11) and being sleeved on the lock housing (11) away from one end of the lock body (5), and the outer peripheral wall of the second sheath body (32) is provided with the locking hole (21).
8. The lock cylinder structure according to claim 7, wherein the second sleeve body (32) is provided with an anti-drilling portion (321) on an end surface covering the lock case (11).
9. A door lock, characterized by comprising a lock head structure according to any one of claims 1-8 and a lock body (5) to which the lock head structure is mounted.
10. A safety door, characterized by comprising a door lock according to claim 9, and a door panel (6) to which the door lock can be mounted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810526507.9A CN108798248B (en) | 2018-05-21 | 2018-05-21 | Lock head structure, door lock and safety door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810526507.9A CN108798248B (en) | 2018-05-21 | 2018-05-21 | Lock head structure, door lock and safety door |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108798248A CN108798248A (en) | 2018-11-13 |
| CN108798248B true CN108798248B (en) | 2023-07-11 |
Family
ID=64090716
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810526507.9A Active CN108798248B (en) | 2018-05-21 | 2018-05-21 | Lock head structure, door lock and safety door |
Country Status (1)
| Country | Link |
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| CN (1) | CN108798248B (en) |
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| CN108798248A (en) | 2018-11-13 |
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