WO2003067005A1

WO2003067005A1 - A knob lock

Info

Publication number: WO2003067005A1
Application number: PCT/CN2002/000482
Authority: WO
Inventors: Jun Mu; Xiushan Du
Original assignee: Jun Mu; Xiushan Du
Priority date: 2002-02-10
Filing date: 2002-07-09
Publication date: 2003-08-14

Abstract

The invention relates to a knob lock. The lock includes an inner and an outer knob (1,30), an outer spindle (9), an inner spindle (24), an outer cap (7), a coupler (4), a joint pipe (32), a lock core (2), a lever locking mechanism and a stop mechanism. The lever locking mechanism includes a lever (11). There is a step in the fore part of the lever. The step is provided with a locking member II (12), a locking member I (13), a lever washer (15), a square pipe-clamping piece (17) and a square pipe (18) in sequence. The locking member II and the locking member I form to several segments of the spiral surface, so the two members can mesh each other. The stop mechanism includes the two protrusions on the inner spindle, the two protrusions on the inner cap, the two protrusions on the outer spindle and the two protrusions on the outer cap.

Description

TECHNICAL FIELD

The utility model relates to a spherical door lock.

Background technique

Spherical door lock is a kind of practical lock with strong windproof, anti-insertion and anti-theft functions. It has a generous appearance and various styles. Most of the handle shapes are spherical, and there are handles with other shapes. The installation of spherical door locks is extremely simple. Two mounting holes can be opened on the door, one is the tongue of the lock, and the other is the hole of the lock. Generally, the lock can be installed and fixed with two fixing screws. The general structure of the spherical door lock on the market is: the handle and the retaining ring are forged, and the overall accessories are assembled together by means of two bracket tube accessories. Among them, the outer handle is generally screwed directly on the supporting accessories. The problem is that the outer handle makes the mountain loose easily after a while, which will seriously affect the opening of the lock. For the fixing of the safety button, the safety button is generally fixed on a plastic part or other parts that are easily deformed during assembly, and it is directly stuck in another accessory to realize the assembly of the safety button. However, the safety button is fixed on a plastic part or other poorly rigid accessories. Although it is easy to install and can fix the safety button, it will inevitably be deformed in the transmission, especially if it is used with certain force. The locking function of the accessory is directly driven by a single accessory through the connecting rod. The locking structure is too simple to match, which causes the stability of the accessory's movement to be more ordinary in use. If the length is longer, some problems will occur in the transmission, such as: rotation When the friction occurs, the clearance becomes larger, the safety button will shake, and even the transmission will fail. In addition, the inner and outer handle rotation limit structures usually use pins. Pin materials are mostly zinc alloy. After a certain period of time, they are easy to fall and cannot be used. Summary of the Invention:.

The purpose of the utility model is to provide a more solid, secure, and ball-resistant door lock. In order to achieve the above purpose, the present utility model adopts the following technical solutions: A spherical door lock, comprising: an inner handle, an outer handle, an outer handle tube, an inner handle tube, an outer lining ring, a connection sleeve, a connection tube, a lock head, A connecting rod locking mechanism and a limit mechanism, the lock head is installed in a side groove of the connecting sleeve, and the connecting sleeve is fixed with the outer handle; the outer handle tube is covered with an outer lining ring, and the retaining ring is snapped into the outer handle tube The groove on the upper side is tightly fitted, and the connecting sleeve provided with a lock in the above side through groove is matched with the outer handle tube; the inner handle tube is provided with a connecting tube, and one end of the connecting tube is fixed with a safety button, and the inner handle tube is The inner ring is inserted, the retaining ring is snapped into the groove of the inner handle tube, and is clamped, which is characterized in that the link locking mechanism includes: a link, a protrusion is provided at the front of the link, and the protrusions are sequentially placed on the protrusion. Fuse block II, fuse block I, they have a multi-section thread surface uniform structure, and there are safety springs, connecting rod gaskets, square tube clips, square tubes, one of which has a boss connecting rod through the outer handle The tube is connected to the slotted hole in the lock head. The square tube at the end of the connecting rod passes through the square hole in the lock fT rod, and the square end passes through the bored hole in the tube. The limiting mechanism is two protrusions on the inner handle tube and two protrusions on the inner lining ring, which are respectively located above the mating surface of the inner handle tube and the inner lining ring, and the outer handle The two bosses on the hand tube and the two protrusions on the outer lining ring, the position limiting mechanism further includes a positioning piece with a torsion spring buckled above the inner handle tube, and the torsion spring is clamped on a column on the inner lining It also includes a positioning piece with a torsion spring buckled above the outer handle tube, and the torsion spring is clamped on a column located on the outer lining ring.

Overview of the drawings

The following further describes the utility model with reference to the drawings:

Figure 1: A perspective view of the components of the utility model;

Figure 2a _: Assembly drawing of the utility model (幵启);

Figure 2b: Assembly drawing of the utility model (locked);

Figure 3a: Assembly drawing of the outer lining ring and the outer handle tube of the utility model (open);

Figure 3b: Assembly drawing of the outer and inner lining rings and the outer tube (locking) of the utility model;

Figure 4a: Front view of the outer ring;

Figure 4b: left side view of Figure 4a;

Fig. 5a: Schematic diagram of the locking mechanism safety block II and the safety block I in Fig. 1 (blocking); Fig. 5b: Schematic diagram of the locking mechanism safety block II and the safety block I (locking) in Fig. 1; Fig. 6a: Fig. 1 Relative mating position of the locking block I and the outer handle tube in the middle locking block (幵启); Figure 6b: Relative mating position of the locking block I and the outer holding tube in the block 1 in Figure 1 (locking); Figure 7: Inner Schematic diagram of handle tube structure;

Figure 8: Schematic diagram of the connection tube and safety button;

Figure 9a _: 'Matching diagram of the inner handle tube and the inner lining ring;

Figure 9b _{: The} relative position of the inner handle tube after the needle is rotated clockwise in Figure 9a;

Figure 9c _{: The} relative position of the inner handle tube after the counter-inch hand is rotated in Figure 9a;

Fig. 10: Three-dimensional structure drawing of the outer handle and connection sleeve.

In Fig. 1, Fig. 2a, Fig. 2b, Fig. 3a, and Fig. 3b, 9 is the outer handle tube, a hole is opened in the wall of the outer handle tube, and a return wire 8 is put on the hole, and one end thereof is stuck on the wall. The other end is in contact with the ring-shaped handle positioning block 10 placed in the tube. One side wall of the outer handle tube outer sleeve is provided with an outer ring 7 with a through groove. Two grooves 7-1 are opened in the outer handle tube. The spacer ring is snapped into the groove of the outer tube with the retaining ring 16 fixed. At this moment, the outer handle tube can rotate freely. The decorative ring 5 is matched with the outer retaining ring 6, and the outer retaining ring 6 is screwed with the outer retaining ring. . Put the lock head 2 into the circular connection sleeve 4, wherein the protruding part of the lock head 2 is located in the circular connection sleeve 4. On the side of the socket and the through groove, the round connection sleeve is fixed on the outer handle 1 with screws 3 (see cabinet 10), and the outer handle, lock, and round connection sleeve 4 are placed on the outer handle tube 9, which is, The hole 4-1 on the circular connection ¾ cooperates with the handle positioning block 10 and is tight.

As shown in Fig. 1, Fig. 2a, Fig. 2b, Fig. 3a, Fig. 3b, Fig. 4a, Fig. 4b, the safety block 1112 and the safety block 113 are assembled on the connecting rod 11 after assembly, and the safety block II and the safety block I have several threads. The surface is evenly distributed, and the two match. The number of segments can be 2, 3, 4, etc. The head of the connecting rod has a boss to prevent the insurance block II and insurance block I from sliding out. Place the insurance spring on the insurance block I in order. 14. The connecting rod gasket 15 is covered with a square tube 18 with a square tube clip 17 embedded in the head. The assembly is installed in the outer handle tube. The end of the connecting rod 11 is inserted into the lock rotation block. Rotate in. The lock cylinder rotates to drive the connecting rod to rotate. A circular bracket piece 19 with a torsion spring 20 is clamped on the outer handle tube, and the retaining ring 16 is clamped on the concave ring groove at the end of the outer handle tube and locked. The square tube 18 is inlaid with a tube clamp piece 17 at the end, and the diameter of the clip piece is larger than the diameter of the central hole of the circular support piece, so the locking mechanism is compressed. Above the mating surface of the outer handle tube 9 and the outer lining ring 7, two protrusions 7-3 are provided respectively, and the protrusions 7-3 on the outer lining ring serve as a limiter and are located on the circular bracket piece. The two ends of the torsion spring 20 below are in contact with the posts 7-2 on the outer lining ring, and are returned by the torsion spring (the structure of the torsion spring and the inner lining ring are substantially the same).

In Figs. 1, 2a, and 2b, the tongue 21 is installed on the groove of the outer liner, and the square tube 18 passes through the square hole on the tongue rod, and then cooperates with the square hole inside the inner handle tube, which is located in the square tube. The central link 11 is inserted into the central hole of the connecting pipe 32.

In Fig. 1, Fig. 2a, Fig. 2b, Fig. 7, Fig. 8, and Fig. 9, 32 is a connecting pipe, one end of which is provided with a flat hole 32_2, the other end of which is secured with a safety button 26, and a horizontal opening is formed on the connecting pipe wall. In slot 32-1, a flap return spring 27 is placed in the slot, and the flap 28 is inserted into the slot, and the flap return spring 27 is pressed. The inner handle tube 24 is provided with a through hole in the center, with a square hole 24-1 at the front end and a round hole 24-3 at the rear end. The connecting tube is installed in the inner handle tube 24, and the baffle is under the function of the baffle return spring. External force is required to retract into the inner handle tube. When the middle piece of the connecting tube reaches the position of the limit groove 24-2 in the inner handle tube, the stopper springs into the limit groove under the action of the return spring, and the inner lining is lined. The ring 25 is sleeved on the inner handle tube 24. After the ring 25 is fitted, the ring 16 is clicked on 24-4 and locked. At this time, the inner handle tube 24 can rotate freely. Match the twist 19, the positioning piece 22 with the concave-convex grooves 24-7 at the end of the inner handle tube, and use the clip 23 to snap with the grooves 24-6 on the inner handle tube to fix them On 24, two limiting protrusions 24-5 and 25-2 are respectively above the mating surface of the inner handle tube 24 and the inner lining tube 25 (see FIG. 9), and 25-1 is an upright post. The limit protrusion on the hand tube is in contact with the limit protrusion on the inner lining ring, the inner handle tube will be forced to stop rotating, thereby achieving rotation limit. The direction of rotation can be clockwise or counterclockwise. Settings can be set. There are only two fittings for the wood limit structure. JI is cast and does not need to be processed again. It has good reliability and stability. In order to make it return, the two ends of the spring 20 are pushed on the column 25-1 of the inner ring, the inner retainer 29 shown in Fig. 1 is placed on the inner ring 25, and a protrusion 24 on the inner handle tube. 8 is inlaid and fixed with the inner side wall groove of the inner handle 30, and 31 is a handle fastening wire.

Figure 4a, Figure 4b, Figure 5a, Figure 5b 屮, the safety block 1112, the safety block 113 is a three-section thread surface uniform structure, the two match, there are two limit protrusions on the safety block 113, the connecting rod The action causes the safety block 113 to rise.

Action process: When the lock head 2 is opened or the safety button 26 is turned, the connecting rod 11 will be directly or indirectly driven to rotate in the rotation direction shown in FIG. 5a; the rotation of the connecting rod 11 causes the safety block Π 12 to rotate in the same direction as it (Shown in b in the figure), and at the same time, the safety block 113 is translated in a direction parallel to the connecting rod 11 (shown as C in the figure) under the push of the safety block 1112, so that the safety block 113 will move upward by a certain displacement, using During this displacement, the limit protrusion on the safety block 113 and the limit groove on the outer lining ring realize the locking and opening functions of the lock. When the lock is in a locked state, the limit protrusion on the safety block Π3 is located in the limit groove on the outer lining ring 7. At this time, if the handle is turned strongly, the limit protrusion on the safety block 113 is located on the outer lining ring. In the upper limit slot, the safety block 113 will not be able to rotate, that is, the outer handle tube 9 cannot be rotated, at this time, the locking tongue will not be able to be opened and is in a locked state. When the lock is in the opened state, the limit protrusions 13-1 on the safety block 113 are completely separated from the limit grooves on the outer lining ring 7, and the outer handle tube 9 can be freely rotated, and the lock tongue can be opened at this time. , Is on.

Industrial applicability

The utility model has the advantages that: two safety blocks with a uniform structure of multiple thread surfaces are used, and the transmission has a large contact surface to ensure the stability and reliability of the transmission; the inner handle pipe has connected square holes and round holes, Guarantee its concentricity, improve the service life and quality; The safety button is riveted on the connecting pipe, and it is a metal piece, which is easy to lubricate to ensure the transmission performance; The limit structure is simple and reliable; The screw connection between the two planes of the wire hole surface of the handle makes it more firm and reliable. This lock improves practicability, safety and reliability.

Claims

Rights request

K A spherical door lock, which includes: an inner handle, an outer handle, an outer handle tube, an inner handle tube, an outer lining ring, a connecting sleeve, a connecting tube, a lock, a connecting rod locking mechanism, a limit mechanism, and the The lock head is installed in the side groove of the connection sleeve, and the connection sleeve is fixed with the outer handle. The outer handle tube has an outer lining ring, and the retaining ring snaps into the groove on the outer handle tube, and the sleeve is tight. The connecting sleeve with a lock in the slot is matched with the outer handle tube; the inner handle tube is provided with a connecting tube, one end of the connecting tube is fixed with a safety button, the inner handle tube is inserted into the inner ring, and the retaining ring is inserted into the inner handle tube. It is clamped in the groove, and it is characterized in that the connecting rod locking mechanism includes: a connecting rod, a protrusion at the front of the connecting rod, and the safety block II and the safety block 1 are sequentially placed on the protrusion, which are multi-threaded The surface is evenly distributed, and there is a safety spring, a connecting rod gasket, a square tube clip, and a square tube, one of which has a boss connecting rod through the outer handle tube, which is connected to the central slot of the lock, and the other end of the connecting rod. The square tube passes through the square hole on the bolt, and the end of the square tube passes through the center hole of the inner handle tube; Into the central hole of the connecting pipe, the limiting mechanism is two protrusions located on the inner handle tube, two protrusions on the inner lining ring, and they are respectively located on the mating surface of the inner handle tube and the inner lining ring Above, there are two bosses on the outer handle tube and two protrusions on the outer lining ring, and the limiting mechanism further includes a positioning piece with a torsion spring buckled above the inner handle tube, and the torsion spring is clamped on the The upright post on the inner lining ring also includes a positioning piece with a torsion spring buckled above the outer tube, and the torsion spring is clamped on the upright post on the outer lining ring.

2. The spherical door lock according to claim 1, wherein the securing block II and the securing block I have a three-section thread surface uniform structure, and the two match.

3. The spherical door lock according to claim 1 or 2, characterized in that the safety button is riveted on the connecting pipe. .

4. The spherical door lock according to claim 1 or 2, characterized in that the cooperation between the outer handle tube and the connecting sleeve uses a handle positioning block pressed on the return wire on the outer handle tube. Cooperate with the recessed hole on the connection sleeve.

5. The spherical door lock according to claim 1 or 2, wherein the cooperation between the connecting pipe and the inner handle tube is that a baffle pressed on a spring is matched with an inner limit groove of the inner handle tube.

6. The spherical door lock according to claim 1 or 2, characterized in that the cooperation between the outer handle and the circular connecting sleeve is the bottom surface of the circular connecting sleeve and the silk hole platform inside the outer handle. And the two flat and spoon screws are connected.

7. The spherical door lock according to claim 1 or 2, characterized in that the fitting of the inner handle D with the inner handle tube is a recessed and convex groove.