CN2839480Y - Improved trailer lock structure - Google Patents

Abstract

The utility model relates to a modified trailer lock structure, in particular to prevent not hard up between each component and make its modified trailer lock structure that has preferred compactness, it is including a shell, a lock body, a rotation piece and a base, wherein the shell supplies to put into according to the preface the base rotate the piece and the lock body, the lock body has a spring bolt, and the cover is located control in the microscler through hole of rotating the piece, the action of shutting, and the base reaches the lock body is established through inserting of inserted pin respectively with the shell concreties each other, rotate one end laminate in the lock body, the other end is pushed up and leans on the base provides better compactness from this, effectively prevents to take place not hard up the situation to provide the theftproof efficiency of a preferred.

Description

Improved trailer lock structure

technical field

The utility model relates to an improved trailer lock structure, in particular to an improved trailer lock structure which prevents looseness among components and makes them have better tightness.

Background technique

Existing trailer locks such as the Republic of China Patent Application No. 84202390 lockset structure improvement, its structure is mainly to be provided with main lock body, spring, rotating body and braking body in sequence in a sleeve, it is through described main lock The rotating body rotates the rotating body, so that the balls set on the rotating body rotate on the inner periphery of the tube of the braking body and are clamped in the ㄇ-shaped hole on the periphery to perform the operation of opening and closing, wherein the rotating body One end is pushed and positioned by a spring, and is displaced in the sleeve. However, when this structure is shaken by an external force, when the spring is subjected to reverse pressure, the internal components will become loose, which makes people feel uncomfortable. Mistakenly think that the lock is damaged or give people the impression of poor quality, and when the spring is subjected to a large reverse impact force, the rotating body will be displaced to one end of the main lock body, so that the steel ball is separated from the braking body The inner circle affects its locking effect.

Contents of the invention

The purpose of this utility model is to provide a trailer lock with better tightness, avoid loosening of internal components and improve anti-theft effect, which includes a shell, a lock body, a rotating part and a base, wherein the shell It is for inserting the base, the rotating part and the lock body in sequence, and the base and the lock body are respectively fixed with the outer shell through the insertion of pins, and the lock body is It includes a lock core and a lock sleeve, the lock core is sheathed in the lock sleeve, and one end has a lock tongue extending into the elongated through hole of the rotating part to drive and rotate the rotating part, The periphery of the rotating part has two cut grooves for the protruding limit of the steel ball set on the base. In the sleeve hole of the base, the operation of opening and closing is performed by moving it up and down. In addition, a spring is installed inside the rotating part to provide better tightness. Through the tightness between the above-mentioned components Fitting can effectively prevent loosening and provide a better anti-theft effect, which is the effect achieved by the utility model.

In order to achieve the above purpose, the utility model provides an improved trailer lock structure, which mainly includes a shell, a lock body, a rotating part and a base, and is characterized in that:

The shell is a hollow cylinder, and the base, the rotating part and the lock body are sequentially put into the shell;

The lock body is fixed inside the shell, and includes a lock core and a lock sleeve, and one end of the lock core has a lock tongue for a key to be inserted and rotated;

The rotating member is a hollow body, one end of which has an elongated through hole for the locking tongue to be sleeved and interlocked, and two cut grooves are provided on its periphery;

The center of the base is provided with a sleeve hole for a locking rod to be sleeved and locked, one end of which is sleeved in the rotating part, and the base is provided with a groove corresponding to the cutting groove of the rotating part. A round hole for steel balls to be set, and the steel balls move up and down to protrude in the sleeve holes and the cut grooves.

A spring is arranged inside the rotating member.

One side of the peripheral edge of the shell is provided with two through holes for inserting pins.

The periphery of the lock sleeve has an insertion hole for inserting a pin.

The periphery of the other end of the base has an insertion hole for inserting a pin.

Description of drawings

Fig. 1 is the three-dimensional exploded schematic view of the utility model;

Fig. 2 is a three-dimensional combination appearance diagram of the utility model;

Fig. 3 is a combined sectional schematic view of the utility model;

Fig. 4 is a schematic diagram of the operation of the utility model one;

Fig. 5 is the second schematic diagram of the operation of the utility model.

Description of reference signs: 1 shell; 11 perforation; 12 concave ring; 13 pin; 2 lock body; 21 lock core; 211 lock tongue; 212 groove; 22 lock sleeve; ;224 positioning pin; 3 rotating parts; 31 elongated through hole; 32 slotting; 4 base; 41 set hole; 42 socket; 43 round hole; 44 steel ball; 5 spring; ditch; 8 keys.

Detailed ways

Please refer to Fig. 1 to Fig. 3, the utility model comprises a shell 1, a lock body 2, a rotating part 3 and a base 4, wherein:

The shell 1 is a hollow cylinder for sequentially inserting the base 4, the rotating member 3 and the lock body 2, and two perforations 11 are provided on one side of the peripheral edge for the insertion of the insertion pin 13. Establish, in addition, a concave ring 12 is recessed on the outer peripheral edge of one end, for the cover of an outer cover 6 to prevent dust and water;

The lock body 2 includes a lock core 21 and a lock sleeve 22, wherein the center of the lock sleeve 22 has a through hole 221 for the sleeve of the lock core 21, and its periphery has a socket 222, For the insertion of the above-mentioned pin 13, it is fixed inside the housing 1, and a through hole 223 is provided adjacent to the socket 222, and a positioning pin 224 is inserted and protrudes from the lock core 21. One end of the lock core 21 has a deadbolt 211, which is used for inserting and rotating a key so as to provide unlocking and locking operations;

The rotating member 3 is a hollow body, and a spring 5 is provided inside it, and one end thereof has an elongated through hole 31 for the locking bolt 211 to be set and interlocked. cut groove 32;

The base 4 has a set of holes 41 at its center for a lock rod 7 to be sleeved and locked, one end of which is sleeved in the rotating member 3, and the periphery of the other end has a socket 42 for the above-mentioned The insertion of the pin 13 makes it fixed inside the housing 1, and the base 4 is provided with a circular hole 43 corresponding to the slot 32 of the rotating member 3 for the setting of the steel ball 44, so that the The steel ball 44 moves up and down to protrude in the sleeve hole 41 and the slot 32;

Through the above-mentioned components, when the operation of locking is desired, the lock rod 6 is sleeved in the sleeve hole 41, and then the lock core 21 is rotated so that the lock tongue 211 at one end rotates to drive the rotation. Part 3, so that the steel ball 44 protruding from the slit 32 is forced into the sleeve hole 41 and clamped in the clamping groove 71 at the end of the lock rod 7, so that it is in a locked state (as shown in the figure 4); and when the operation of unlocking is desired, the lock core 21 will be rotated by a key 8, so that the dead bolt 211 is rotated to drive the rotating member 3, so that the cut groove 32 just corresponds to the position of the steel ball 44, and then pull out the locking bar 7, at this time the steel ball 44 is pressed by the locking bar 7 and shifts in the direction of the notch 32 and then breaks away from the locking groove 71 , so that the lock bar 7 can be easily pulled out to complete the unlocking operation (as shown in Figure 5); since one end of the rotating member 3 is attached to the lock body 2, the other end is against the The base 4, the lock body 2 and the base 4 are fixed on the housing 1, and the spring 5 provided inside the rotating part 3 can buffer the displacement gap between the components, so the components are in the shape of In a fixed position, there will be no gaps, which can effectively prevent loosening, and even if it is knocked with a large external force, the anti-theft function will not fail due to displacement.

Claims (5)

1. an improved trailer lock structure mainly comprises a shell, a lock body, a tumbler and a base, it is characterized in that:

Described shell is to be a hollow cylinder, and described base, described tumbler and described lock body are inserted in the described shell in regular turn;

Described lock body is the inside that is fixedly arranged on described shell, includes a core and a lock tube, and described core one end has one and supplies a key to plug the dead bolt of rotation;

Described tumbler, it is to be a ducted body, and the one end has a microscler open-work for the sheathed interlock of described dead bolt, and its periphery is provided with two groovings;

Described base, the center has the trepanning of the sheathed lock knot of a confession one locking bar, the one end is to be sheathed in the described tumbler, described base is provided with and the corresponding circular hole that supplies steel ball to install of the grooving of described tumbler, and described steel ball is that upper and lower moving convexedly stretches in described trepanning and the described grooving.

2. improved trailer lock structure as claimed in claim 1, it is characterized in that: the inside of described tumbler installs a spring.

3. improved trailer lock structure as claimed in claim 1 is characterized in that: its periphery one side of described shell is provided with two perforation that supply pin to plug.

4. improved trailer lock structure as claimed in claim 1 is characterized in that: described lock tube periphery has a jack that supplies a pin to plug.

5. improved trailer lock structure as claimed in claim 1 is characterized in that: the periphery of the described base other end has a jack that supplies a pin to plug.

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