CN201314164Y - a door lock - Google Patents

Abstract

The utility model discloses a door lock, which is characterized in that an indoor side lock shell and an outdoor side lock shell are respectively arranged on a door body on one side of the indoor side and the outdoor side, an indoor handle and an outdoor handle are respectively arranged on the door body through the indoor side lock shell and the outdoor side lock shell, an indoor side shaft sleeve and an outdoor side shaft sleeve are respectively sleeved on the indoor side handle and the outdoor side handle, reset snap springs are respectively arranged between the indoor side shaft sleeve and the outdoor side lock shell and between the indoor side shaft sleeve and the outdoor side lock shell, an indoor side rotating shaft and an outdoor side rotating shaft are respectively sleeved on the indoor side shaft sleeve and the outdoor side shaft sleeve, and; the lock shell is connected with a spring bolt, the spring bolt is connected with a lock frame arranged in the lock shell, the lock frame is connected with a return spring arranged in the lock shell, and an indoor cam and an outdoor cam which are respectively matched with an indoor rotating shaft and an outdoor rotating shaft are arranged in the lock shell; the lock frame is provided with an opening and is also provided with an opening which is mutually pressed when the cam rotates indoors and outdoors. The door lock transmission part has small power consumption, reliable locking function, synchronous and accurate action of the handle and the spring bolt of the door lock, and convenient use for an operator.

Description

a door lock

Technical field:

The utility model relates to a door lock, in particular to a door lock which can be opened and closed by rotating a handle on the door lock. The door lock is used for opening and closing the inside or outside of doors installed in various public places.

Background technique:

At present, the door locks that are used to open and close doors in public places such as families or offices are opened and closed by rotating handles that are arranged on the inside and outside of the door. The handles used for these door locks are mainly round handles or bar handles that are easy to grasp. The appropriate height of these existing door locks on the door is penetrated and provided with a tubular sleeve, and the body of various door locks and unlocking parts is arranged around it, and the inner body is fixed between the two ends of the sleeve and the door. , the outer flange, and the handle of the switchgear is arranged on the end of the sleeve protruding between the inner and outer flanges, and a locking device including a slider is arranged in the handle. In addition, a locking arm manipulated by the inside and outside handles and the lock catch device is set in the above-mentioned door, and a dead bolt connected with the above-mentioned locking arm is set on the door frame, so that through the rotation operation of the above-mentioned handle, the locking arm will be locked. The connected dead bolt is inserted into the lock frame fixed on the door frame or deviates from the lock frame fixed on the door frame to open and close. However, due to problems such as cost increase and frequent failures caused by too many components, even if the above-mentioned door is locked, the door can be opened with a blade, awl, iron wire, etc., which causes user anxiety and poor locking effect; and , The friction and wear between the same parts continue to occur during opening and closing, thereby shortening the service life. Obviously, the door locks installed in public places in the prior art fail to solve the problem of too many parts and poor locking effect.

Utility model content:

The purpose of the utility model is to overcome the deficiencies of the prior art and provide a door lock. The utility model reduces the parts used and strengthens the locking ability of the door lock.

The technical solution of the utility model to solve the prior art is: a door lock, the indoor side lock shell and the outdoor side lock shell with through holes are respectively installed on the door body on the indoor side and the outdoor side, and pass through the indoor and outdoor side lock shells respectively. The through hole of the outer lock housing is provided with an indoor handle and an outdoor handle that cooperate with the through hole and can rotate. There are resetting snap springs between the sleeve and the indoor and outer lock shells respectively. The indoor and outer shaft sleeves are respectively covered with retractable indoor and outdoor shafts. The ends of the indoor and outer shafts facing the handle are connected to the handle. The inner spring, the protruding ends of the indoor and outer shafts face each other and pass through the door lock mechanism with a through-hole lock housing; The lock frame, the lock frame is connected with a return spring placed in the lock housing, wherein the lock housing is provided with a fan-shaped indoor cam and a fan-shaped outdoor cam that are respectively matched with the indoor and outer shafts; The lock frame has an opening, and the lock frame also has an opening that is pressed against each other when the indoor and outside cams rotate. Rotate the indoor and outdoor handles to drive the indoor and outer shafts respectively to realize the rotation of the indoor cam and the outdoor cam. When the indoor cam or the outdoor cam rotates, the cam presses down the opening of the lock frame to connect with the lock frame. The deadbolt follows the lock frame and retracts into the lock housing to achieve the effect of opening the door. In addition, the lock tongue can rotate 360 degrees when it is outside the lock housing, so that the lock tongue can adapt to different installation methods of the matching door frame iron cards.

The utility model is further designed as follows: the lock housing is also provided with two through holes and a movable rod body passing through the two through holes, a section of the rod body placed in the lock housing corresponds to the indoor, and the outer cam has stepped high and low protrusions. The cam on the outdoor side has a deep notch matching the high boss, and the cam on the indoor side has a shallow notch matching the low boss. The cross section of the shallow notch is trapezoidal; There is a small hole, and a spring pin assembly passes through the small hole to contact with the end of the rod body. The spring pin assembly is composed of a pin body with caps at both ends and a spring sheathed by the spring pin passing through the small hole. There is a certain gap between the indoor cam and the top of the high boss, so that the indoor cam can rotate. In the initial position, the top of the high boss is in the position opposite to the shallow concave platform matched with the boss, and both the indoor and the outside cams can rotate; when the spring pin assembly pushes the rod body, the high boss falls into the deep recess and the low boss falls into the deep recess. At this time, the outdoor cam is blocked by the high boss so that the outdoor handle cannot be rotated, thereby realizing anti-locking; when the indoor handle is turned, the indoor cam rotates so that the low boss slides along the outer edge of the shallow recess. Thereby the whole rod body is returned to the initial position, and anti-locking is released. In this design, an opening facing the other end of the rod body can also be provided on the outdoor side lock housing. The opening can enable the rod body to be pushed back to the original state by using a wire or a toothpick to pass through the opening when the door lock is in the locked state. , can also be unlocked. Or the end of the pin body of the spring pin assembly that is in contact with the rod body can also be provided with threads without a cap, and the end of the rod body that is in contact with the pin body is provided with a screw hole that matches the thread, and the thread is matched with the screw hole to depress the spring. The pin assembly forms an anti-lock, and the pin body is pulled to release the anti-lock. This design does not need to turn the indoor handle to unlock the anti-lock. The small part of the pin body is cleverly used to make the door lock more convenient and labor-saving.

The aforesaid indoor side rotating shaft and outdoor side rotating shaft are respectively sleeved with blocking pieces, and the length of the blocking pieces inserted into the indoor and outside rotating shafts is not longer than the thickness of the indoor and outside cams. The function of the stopper can prevent the indoor and outer shafts from protruding into the room and the outer cam is too long, so that the indoor and outer shafts can control the rotation of the indoor and outer cams separately. Of course, the more optimal design is; The lengths of the indoor and outer rotating shafts are respectively consistent with the thickness of the indoor and outer cams.

The utility model has the advantages of simple and novel structure, low cost, and fewer parts used, and its transmission parts are simple, compact, flexible and reliable; the power consumption of the transmission parts is small, and the operator is convenient to use. The door lock has a reliable locking function, and the handle of the door lock is synchronously and accurately moved with the lock tongue. Moreover, the door lock structure simplifies the original installation and disassembly process, is easy to produce and popularize, and is widely used on door bodies in various open places.

Description of drawings:

Fig. 1 is a schematic structural view of an embodiment of the utility model.

Fig. 2 is a reference diagram of the use state of the embodiment.

Fig. 3 is a structural schematic diagram of the door lock mechanism of the present invention.

FIG. 4 is a rear view of FIG. 3 .

Fig. 5 is a schematic diagram of the mechanism of the outdoor cam.

FIG. 6 is a top view of FIG. 5 .

Fig. 7 is a schematic diagram of the mechanism of the indoor cam.

FIG. 8 is a top view of FIG. 7 .

Fig. 9 is a schematic structural view of the rod body.

Fig. 10 is a left side view of Fig. 9 .

Detailed ways:

Embodiments of the utility model are described in detail below in conjunction with the accompanying drawings.

Example

A kind of door lock, as shown in Fig. 1, Fig. 2, Fig. 3, the indoor side lock case 11 that has through hole and the outdoor side lock case 12 that have through hole are installed respectively on the door body of indoor one side and outdoor side, through hole is opened At the central position of the two lock housings, the through holes passing through the indoor and outer lock housings respectively are provided with an indoor handle 21 and an outdoor handle 22 which cooperate with the through holes and are rotatable. The indoor side shaft sleeve 41 and the outdoor side shaft sleeve 42 are connected, and the indoor and the outside shaft sleeves are all covered with a reset jumper 51, and the two ends of the reset jumper 51 are respectively blocked by the convex posts provided on the back of the indoor and outer lock housings. 1. Pipe sleeves 43 are sheathed in the outer shaft sleeves respectively. Outside the sleeves 43, stop rings and spring sheets are matched with the indoor and outer shaft sleeves. The telescopic indoor side shafts 31 and outdoor side shafts 32 are sleeved inside the pipe sleeves 43. The ends of the indoor and outside rotating shafts facing the handle are connected to the spring 52 placed in the handle, and the extended ends of the indoor and outside rotating shafts face each other and pass through the door lock mechanism that has a through-hole lock housing 71; as shown in Figure 3 and Fig. As shown in 4, the lock case 71 of the door lock mechanism is connected with a dead bolt 72, and the dead bolt 72 is connected with a lock frame 73 placed in the lock case 71, and the lock frame 73 is connected with a return spring 53 placed at the bottom of the lock case 71, Wherein the lock housing 71 is provided with a fan-shaped indoor cam 81 and a fan-shaped outdoor cam 82 respectively cooperating with the indoor and outer rotating shafts, as shown in Fig. 5, Fig. 6, Fig. 7 and Fig. 8; the lock frame 73 is opened There is an opening, and the lock frame 73 also has an opening that is pressed against each other when the indoor and outer cams rotate. By rotating the indoor handle 21 and the outdoor handle 22, the indoor and the outer shafts are respectively driven to rotate the indoor cam 81 and the outdoor cam 82. When the indoor cam 81 or the outdoor cam 82 rotates, the cam presses down the opening of the lock frame. Thereby, the dead bolt 72 connected with the lock frame 73 is retracted into the lock case 71 following the lock frame 73 to achieve the effect of opening the door.

The lock housing 71 is also provided with two through holes and a movable rod body 62 passing through the two through holes, as shown in Figure 9 and Figure 10, a section of rod body 62 placed in the lock housing 71 corresponds to the indoor and outer cams with stepped The high and low bosses, the outdoor side cam has a deep notch matching the high boss, the indoor side cam 81 has a shallow notch matching the low boss, and the cross section of the shallow notch is trapezoidal; the indoor side There is a small hole on the lock housing 11, and a spring pin assembly 61 passes through the small hole to contact the end of the rod body 62. The spring pin assembly 61 is composed of a spring pin with caps at both ends and a spring covered by the spring pin passing through the small hole. . There is a certain gap between the indoor cam 81 and the top of the high boss, so that the indoor cam 81 can rotate. In the initial position, the top of the high boss is in the position opposite to the shallow concave platform matched with the boss, and the indoor and outside cams can rotate; when the spring pin assembly 61 pushes the rod body 62, the high boss falls into the deep recess and the low convex platform falls into the shallow recess, at this time, the outdoor side cam 82 is stuck by the high convex platform so that the outdoor handle 22 cannot be rotated, thereby realizing reverse locking; when the indoor handle 21 is turned, the indoor side cam 81 rotates so that the low convex platform moves along the shallow concave The outer edge of the mouth slides, so that the whole rod body 62 returns to the initial position, and the anti-locking is released. On the outdoor side lock housing 12, there is an opening facing the other end of the body of rod 62. The opening of the opening can make the door lock in the locked state, and the body of rod 62 is pushed back to the initial state by using iron wire or toothpicks to pass through the opening. Can unlock the lock.

The indoor side rotating shaft 31 and the outdoor side rotating shaft 32 are respectively sleeved with a blocking piece 9, and the blocking piece 9 is inserted into the indoor and the length of the outside rotating shaft is consistent with the thickness of the indoor and outside cams respectively. The effect of card block piece 9 can make indoor, outside rotating shaft can not stretch into indoor, the outside cam is too long, thereby realizes that indoor, outside rotating shaft controls the rotation of indoor and outside cam separately respectively.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the structure of the present utility model in any form. Any simple modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present utility model still belong to the scope of the technical solution of the present utility model.

Claims (5)

1, a kind of door lock, on the door body of an indoor side and an outdoor side, indoor lock housing (11) and the outside lock housing (12) that has through hole is installed respectively, pass indoor respectively, the through hole of outside lock housing is provided with through hole and cooperatively interacts and rotating indoor handle (21) and outdoor handle (22), indoor, the end that outer handle passes through hole is socketed with indoor axle sleeve (41) and outside axle sleeve (42) respectively, indoor, outside axle sleeve is respectively with indoor, be provided with the jump ring that resets (51) between the lock housing of the outside, indoor, outboard shafts puts and is with telescopic indoor rotating shaft (31) and outside rotating shaft (32) respectively, indoor towards handle, the end of outside rotating shaft all connects the spring (52) that places in the handle, and is indoor, the external part of outside rotating shaft mutually towards and pass the door lock mechanism that has through hole lock housing (71); Be connected with dead bolt (72) on the lock housing of door lock mechanism (71), dead bolt (72) is connected with the lock frame (73) that places in the lock housing (71), lock frame (73) is connected with the back-moving spring (53) that places in the lock housing (71), it is characterized in that: be provided with the fan type indoor cam (81) and the fan type outside cam (82) that cooperate with indoor and outdoor side rotating shaft axle respectively in the described lock housing (71); Described lock frame (73) has opening, the opening that lock frame (73) compresses when also having with indoor and outdoor side cam rotation mutually.

2, door lock according to claim 1, it is characterized in that: also be provided with two through hole on the described lock housing (71) and pass the movably body of rod (62) of two through hole, place one section body of rod (62) the respective chamber/chambers medial and lateral cam in the lock housing to have step-like high and low boss, outside cam (82) has the deep notch that cooperates with high boss, indoor cam (81) has the shallow concave recess that cooperates with low boss, and the cross section of shallow concave recess is trapezoidal shape; Have aperture on the described indoor lock housing 11, a spring catch assembly (61) passes aperture and contacts with the body of rod (62) end.

3, door lock according to claim 2 is characterized in that: described indoor rotating shaft (31) and outside rotating shaft (32) are with clip shutter (9) respectively, and clip shutter (9) is inserted in the thickness of the length of indoor and outdoor side rotating shaft no longer than indoor and outdoor side cam.

4, door lock according to claim 3 is characterized in that: also have towards the perforate of body of rod the other end on the described outside lock housing (12).

5, door lock according to claim 4 is characterized in that: described spring catch assembly (61) comprises a shank, and the end that shank contacts with the body of rod is provided with screw thread, and the body of rod one end that contacts with shank is provided with the screw with the screw thread coupling.

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