CN211448110U - Adjustable door lock - Google Patents

Abstract

The utility model relates to a lock with adjustable, include: the lock body is internally provided with an accommodating cavity with two open ends; the lock cylinder is arranged in the accommodating cavity and provided with a spiral groove, and the spiral groove is provided with a boss; the lock shaft is sleeved in the lock cylinder and connected with the lock cylinder; a lock tongue: the bolt is connected with the lock shaft. The utility model relates to a lock with adjustable, through set up on the lock core the swivelling chute, and set up on the swivelling chute the bellying can effectively be avoided the lock to take place the phenomenon of automatic opening or take place automatic closed phenomenon after opening and shutting because vibrations after the closure.

Description

Adjustable door lock

Technical Field

The utility model relates to a tool to lock field especially relates to a lock with adjustable.

Background

A cam lock, or cam lock, is a lock which controls the lock to rotate a lock pin through an internal structure, and is divided into a plum blossom spring lock, a triangle cam lock, a double-sided spring lock according to the difference of the lock pin structure. The operating principle of the cam lock is that the key rotates to drive the lock core and the lock shaft to rotate, and further drive the lock tongue to rotate, so that the door lock is opened and closed. The distance between the spring bolt and the door plate of some existing door locks is adjustable, and the distance between the spring bolt and the door plate is adjusted according to the thickness of a specific door plate when the door locks are convenient to install. However, because of its simple structure, when the door lock is used in a closed luggage rack of an airplane, a motor car, a bus, etc., the door lock is easy to loosen and automatically open or close due to the possibility of vibration.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a can effectively avoid the lock to take place the automatic lock of opening or closed phenomenon because of vibrations.

In order to achieve the above object, the utility model provides an adjustable door lock, include:

the lock body is internally provided with an accommodating cavity with two open ends;

the lock cylinder is arranged in the accommodating cavity and provided with a spiral groove, and the spiral groove is provided with a boss;

the lock shaft is sleeved in the lock cylinder and connected with the lock cylinder;

a lock tongue: the bolt is connected with the lock shaft.

Preferably, a rotation limiting part is arranged in the accommodating cavity.

Preferably, the rotation limiting portion is provided with a first axial groove, a second axial groove, a third axial groove and a fourth axial groove, the first axial groove and the second axial groove are communicated through the first rotation groove, and the third axial groove and the fourth axial groove are communicated through the second rotation groove.

Preferably, the outer wall of the lock body is provided with a threaded part, and the threaded part is in threaded connection with the third lock nut.

Preferably, the outer surface of the threaded part is provided with a first limit plane extending along the axial direction thereof.

Preferably, the lock further comprises a third anti-loosening washer, and the third anti-loosening washer is sleeved on the lock body.

Preferably, the lock core is further provided with a sealing groove, and an O-shaped ring is arranged in the sealing groove.

Preferably, the lock shaft is provided with a threaded rod, the spring bolt is provided with spacing mouthful, the spring bolt passes through spacing mouthful of cover is established on the threaded rod, the spring bolt both ends are provided with first lock nut and second lock nut respectively, just first lock nut with second lock nut with the threaded rod cooperation is connected.

Preferably, the outer surface of the threaded rod is provided with a second limiting plane extending along the axis direction of the threaded rod, and two sides of the limiting opening are provided with planes matched with the second limiting plane.

Preferably, a first lock washer and a second lock washer are respectively arranged between the first locking nut and the lock bolt and between the second locking nut and the lock bolt.

The utility model relates to an adjustable door lock, through set up the said rotary groove on the said lock core, and set up the said lug boss on the said rotary groove, can avoid the door lock to take place the phenomenon of automatic opening or the phenomenon of automatic closing after opening and shutting because of shaking after closing effectively; the door lock can also adjust the distance between the lock tongue and the door plate according to the actual situation, and is very convenient and practical; the rotation limiting part is arranged in the lock body, so that the door lock can bear larger working load; the door lock structure is stable, the sealing performance is good, the internal structure of the door lock can be better protected, and the service life of the door lock can be prolonged.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic view of the explosion structure of the adjustable door lock of the present invention;

FIG. 2 is a schematic view of the adjustable door lock of the present invention;

fig. 3 is a schematic structural view of the lock body of the present invention;

fig. 4 is a side view of the lock body structure of the present invention;

fig. 5 is a schematic view of the structure of the lock cylinder of the present invention.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)	Reference numerals	Name (R)
						10	Lock body	20	Lock core	50	Spring
11	Containing cavity	21	Helical groove	60	Clamp spring
						12	Panel part	211	Raised part	70	Lock tongue
13	Rotation limiting part	212	First end	71	Limiting port
						131	First axial groove	213	Second end	80	First lock nut
132	Second axial groove	22	Jump ring groove	90	Second lock nut
						133	Third axial groove	23	Sealing groove	100	Third lock nut
134	Fourth axial groove	30	Lock shaft	110	Third-proof loose washer
						135	A first rotary groove	31	Pin hole	120	O-shaped ring
136	Second rotary groove	32	Threaded rod	130	First lock washer
						14	Screw thread part	321	Second limit plane	140	Second lock washer
141	First limit plane	40	Lock pin	150	Rubber ring

The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that, if directional indications (such as upper, lower, left, right, front and rear … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

In an embodiment of the present invention, as shown in fig. 1 to 5, an adjustable door lock includes:

the lock comprises a lock body 10, wherein an accommodating cavity 11 with two open ends is formed in the lock body 10;

the lock cylinder 20 is arranged in the accommodating cavity 11, the lock cylinder 20 is provided with a spiral groove 21, and the spiral groove 21 is provided with a convex part 211;

the lock shaft 30 is sleeved in the lock cylinder 20 and is connected with the lock cylinder 20;

the bolt 70: the latch tongue 70 is connected to the lock shaft 30.

In this embodiment, as shown in fig. 1 to 2, the lock shaft 30 is provided with a pin hole 31, and a lock pin 40 passes through the spiral groove 21 and the pin hole 31 to match the lock cylinder 20 with the lock shaft 30. The locking shaft 30 is sleeved in the lock cylinder 20, a spring 50 is arranged between the inner side of the lock cylinder 20 and the locking shaft 30, the lock pin 40 passes through the spiral groove 21 on the lock cylinder 20 and the pin hole 31 on the locking shaft 30 to match and connect the lock cylinder 20 and the locking shaft 30, so that the lock cylinder 20 and the locking shaft 30 are assembled together; the lock core 20 is arranged in the accommodating cavity 11 of the lock body 10, the lock core 20 is provided with a clamp spring groove 22, a clamp spring 60 is clamped in the clamp spring groove 22 on the lock core 20, and the lock core 20 and the lock body 10 are clamped and fixed, so that the lock body 10 is assembled with the lock core 20; the latch tongue 70 is fixedly connected with the lock shaft 30, so that the latch tongue 70 is assembled with the lock shaft 30, the lock cylinder 20 and the lock body 10 to form a door lock.

As shown in fig. 5, an external key is matched with the door lock, the key is inserted into and matched with the lock cylinder 20, and in a closed state, at this time, a first end 212 of the spiral groove 21 is close to the lock pin 40, then the key is rotated clockwise, so that the lock cylinder 20 rotates clockwise by 90 degrees, the first end 212 is close to the lock pin 40, and a second end 213 of the spiral groove 21 is close to the lock pin 40 (that is, the lock pin 40 moves from the first end 212 to the second end 213 in an opposite manner), the key is rotated clockwise continuously, so that the lock cylinder 20 rotates clockwise by 90 degrees, at this time, the lock cylinder 20 drives the lock shaft 30 to rotate clockwise by 90 degrees through the lock pin 40, and further drives the lock tongue 70 to rotate clockwise by 90 degrees, so that the door lock in the closed state is changed into; in the opening and closing state, the lock pin 40 is close to the second end 213, when the door needs to be closed, the key is rotated counterclockwise, so that the lock cylinder 20 rotates 90 degrees counterclockwise, the second end 213 is close to the lock pin 40, the first end 212 is close to the lock pin 40 (that is, the lock pin 40 moves from the second end 213 to the first end 212 relatively), the key is selected counterclockwise continuously, so that the lock cylinder 20 rotates 90 degrees counterclockwise continuously, at this time, the lock cylinder 20 drives the lock shaft 30 to rotate 90 degrees counterclockwise through the lock pin 40, and further drives the lock tongue 70 to rotate 90 degrees counterclockwise, so that the door lock in the opening and closing state is changed into the closing state.

In a closed state, the lock pin 40 is clamped at the first end 212, and at this time, if the door lock sends a violent shock, the lock pin 40 may be driven to move to the second end 213, but due to the arrangement of the protrusion 211, the lock pin 40 can be effectively prevented from moving to the second end 213, so that the lock tongue 70 is prevented from rotating counterclockwise due to the shock, and the door lock is prevented from being automatically opened; accordingly, in the open-close state, the lock pin 40 is locked at the second end 213, if the door lock sends a violent shock, the lock pin 40 may be driven to move to the first end 212, and the protrusion 211 is also arranged to effectively prevent the lock pin 40 from moving to the first end 212, so as to prevent the door lock from being automatically closed.

Further, a rotation limiting part 13 is arranged in the accommodating cavity 11. The rotation limiting portion 13 is used for limiting a rotation angle of the lock pin 40, so that the door lock can rotate by a proper angle when being opened or closed, and the opening and closing are facilitated.

Further, the rotation restricting portion 13 is provided with a first axial groove 131, a second axial groove 132, a third axial groove 133, and a fourth axial groove 134, the first axial groove 131 and the second axial groove 132 are communicated through a first rotation groove 135, and the third axial groove 133 and the fourth axial groove 134 are communicated through a second rotation groove 136.

As shown in fig. 1 to 4, a panel portion 12 is provided at one end of the key cylinder 20, and specifically, the first rotation groove 135 communicates the first axial groove 131 with the second axial groove 132 at an end away from the panel portion 12, and the second rotation groove 136 communicates the third axial groove 133 with the fourth axial groove 134 at an end away from the panel portion 12. The lock pin 40 moves back and forth between the first axial groove 131, the first rotating groove 135 and the second axial groove 132 at one end and moves back and forth between the third axial groove 133, the second rotating groove 136 and the fourth axial groove 134 at the other end, and referring to the above, when the door lock is closed or opened, the lock cylinder 20 is rotated ninety degrees, the lock pin 40 is displaced in the above axial groove, the lock cylinder 20 is further rotated, the lock pin 40 moves in the above rotating groove, the rotating angle of the lock pin 40 is limited by the first rotating groove 135 and the second rotating groove 136, and further the rotating angle of the lock tongue 70 is limited, so that the door lock can be opened or closed at a proper angle, and the opening and closing are convenient. In the prior art, most of the limitation on the rotation angle of the locking bolt 70 is to provide a projection on the lock shaft 30 and a limiting groove on the lock body 10, and then limit the rotation angle by the cooperation of the projection and the projection, and the matching form of the limiting groove and the projection is mainly for a door lock with a short stroke and a small requirement on a bearable working load, but in the technical scheme, the lock body 10 directly limits the lock pin 40 by the cooperation of the lock pin 40 and the lock body 10, and the lock can be applied to the conditions of a long stroke and a large requirement on a bearable working load.

Further, as shown in fig. 1, the outer wall of the lock body 10 is provided with a threaded portion 14, and the threaded portion 14 is threadedly coupled to the third lock nut 100. When the door lock is installed on the door panel, the door panel is arranged between the panel part 12 and the third lock nut 100, and the third lock nut 100 is screwed to be tightly contacted with the door panel, so that the door panel is fixedly connected with the door lock. More preferably, still the cover is equipped with rubber circle 150 on the lock body 10, rubber circle 150 specifically set up in panel portion 12 is inboard, and when the lock was installed on the door plant, rubber circle 150 was located between panel portion 12 and the door plant, rubber circle 150 with lock body 10 and the close counterbalance cooperation of door plant increase the leakproofness of lock to prevent the moisture of air and the inside spare part contact of lock, thereby lead to the life of lock to shorten. The threaded portion 14 and the third lock nut 100 are provided to facilitate installation.

Further, as shown in fig. 1, the outer surface of the threaded portion 14 is provided with a first limit plane 141 extending in the axial direction thereof. In this embodiment, four first limiting planes 141 are uniformly distributed and annularly arranged on the threaded portion 14. At present, most of openings formed in the door panel are rectangular, so that the first limiting plane 141 matched with the opening of the door panel is arranged on the outer surface of the threaded portion 14, the connection between the door lock and the door panel is more stable, and the lock cylinder 20 is prevented from rotating relative to the door panel.

Further, as shown in fig. 1 to 2, a third anti-loosening washer 110 is further included, and the third anti-loosening washer 110 is sleeved on the lock body 10. The third anti-loosening washer 110 is arranged between the door panel and the third lock nut 100, so that the door lock and the door panel are more firmly fixed; the third loosening prevention washer 110 can also provide a pre-tightening force to the third lock nut 100 when the third lock nut 100 is tightened, so that the third lock nut 100 is not easy to loosen. Preferably, the third lock nut 110 is an internal-tooth lock washer, and when the third lock nut 100 is screwed down, the third lock nut can be pressed to retract toward the door panel, so that teeth on the lock washer are engaged with the door panel, and slipping is effectively prevented.

Further, as shown in fig. 1 and 5, the lock cylinder 20 is further provided with a sealing groove 23, and an O-ring 120 is disposed in the sealing groove 23. The O-shaped ring 120 can increase the sealing performance of the structure, and can play a certain waterproof role, so that the service life of the door lock is prolonged.

Further, as shown in fig. 1 to 2, the lock shaft 30 is provided with a threaded rod 32, the lock tongue 70 is provided with a limiting opening 71, the lock tongue 70 passes through the limiting opening 71 is sleeved on the threaded rod 32, two ends of the lock tongue 70 are respectively provided with a first lock nut 80 and a second lock nut 90, and the first lock nut 80 and the second lock nut 90 are connected with the threaded rod 32 in a matching manner. By screwing the first lock nut 80 and the second lock nut 90, the distance between the latch bolt 70 and the lock shaft 30 can be adjusted, that is, the distance between the latch bolt 70 and the door panel can be adjusted. The distance between the lock tongue 70 and the door plate is adjustable, so that the application process is more practical, for example, when the door lock is used on a closed luggage rack such as an airplane, a motor car, a bus and the like, if the size of an article is large and the door plate cannot be closed when the article is put on the luggage rack, the article cannot be supported by the door plate, and the article is easy to fall off; if the distance between the locking tongue 70 and the door panel is adjustable, the distance between the locking tongue 70 and the door panel can be adjusted to be larger, and even if an object is larger, the door panel can be closed when the object is placed on the luggage rack.

Further, as shown in fig. 1 to 2, a second limiting plane 321 extending along the axial direction of the threaded rod 32 is disposed on the outer surface of the threaded rod, and two sides of the limiting opening 71 are disposed as planes matched with the second limiting plane 321. In this embodiment, the two second limiting planes 321 are respectively and oppositely disposed on the outer surface of the threaded rod 32, two sides of the limiting opening 71 are correspondingly disposed on the planes matched with the second limiting planes 321, and when the locking bolt 70 is sleeved on the threaded rod 32, the locking bolt 70 can be more stably connected to the threaded rod 32 by the matching of the limiting opening 71 and the second limiting planes 321, so that the rotation of the lock shaft 30 can be more stably and accurately transmitted to the locking bolt 70.

Further, as shown in fig. 1 to 2, a first lock washer 130 and a second lock washer 140 are respectively disposed between the first lock nut 80 and the locking bolt 70 and between the second lock nut 90 and the locking bolt 70. The first lock washer 130 and the second lock washer 140 are designed to make the connection among the first lock nut 80, the locking bolt 70 and the second lock nut 90 more stable, so that the locking bolt 70 is not easy to loosen. Preferably, the first lock washer 130 and the second lock washer 140 both use internal tooth lock washers, and the teeth on the lock washer are engaged with the locking bolt 70 by pressing the first lock nut and the second lock nut 90 to retract toward the locking bolt 70 when the first lock nut and the second lock nut are tightened, so that slipping is effectively prevented, and structural stability is increased.

The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structure changes made by the contents of the specification and the drawings under the inventive concept of the present invention, or the direct/indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims (10)

1. An adjustable door lock, comprising:

the lock body is internally provided with an accommodating cavity with two open ends;

the lock cylinder is arranged in the accommodating cavity and provided with a spiral groove, and the spiral groove is provided with a boss;

the lock shaft is sleeved in the lock cylinder and connected with the lock cylinder;

and the bolt is connected with the lock shaft.

2. The adjustable door lock of claim 1, wherein: the accommodating cavity is internally provided with a rotary limiting part.

3. An adjustable door lock according to claim 2, wherein: the rotation limiting portion is provided with a first axial groove, a second axial groove, a third axial groove and a fourth axial groove, the first axial groove is communicated with the second axial groove through the first rotating groove, and the third axial groove is communicated with the fourth axial groove through the second rotating groove.

4. The adjustable door lock of claim 1, wherein: the outer wall of the lock body is provided with a threaded portion, and the threaded portion is in threaded connection with a third locking nut.

5. An adjustable door lock according to claim 4, wherein: the outer surface of the threaded part is provided with a first limiting plane extending along the axis direction of the threaded part.

6. An adjustable door lock according to claim 4, wherein: still include the third pine packing ring of preventing, the pine packing ring cover of third preventing is established on the lock body.

7. The adjustable door lock of claim 1, wherein: the lock core is also provided with a sealing groove, and an O-shaped ring is arranged in the sealing groove.

8. The adjustable door lock of claim 1, wherein: the lock shaft is provided with a threaded rod, the spring bolt is provided with a limiting opening, the spring bolt passes through the limiting opening is sleeved on the threaded rod, the two ends of the spring bolt are respectively provided with a first locking nut and a second locking nut, and the first locking nut and the second locking nut are connected with the threaded rod in a matched mode.

9. The adjustable door lock of claim 8, wherein: the outer surface of the threaded rod is provided with a second limiting plane extending along the axis direction of the threaded rod, and two sides of the limiting opening are provided with planes matched with the second limiting plane.

10. The adjustable door lock of claim 8, wherein: and a first anti-loose washer and a second anti-loose washer are respectively arranged between the first locking nut and the lock bolt and between the second locking nut and the lock bolt.

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