KR19990033891U - Watertight Door Lock Handle - Google Patents

Abstract

Provided is a watertight door lock handle device capable of accurately preventing intrusion of rainwater through a gap between an inner wall through hole and a latch, without reducing the torsional strength or bending strength of the operating shaft portion.

The operation shaft part 5 of the handle 4 is rotatably inserted in the shaft hole 3 of the receiving seat body 2, and the detent plate 8 is connected to the tip of the operation shaft part 5, and the operation shaft part ( A latch 12 for providing a receiving hole 9 open to the front surface side in 5) and engaging the inner surface recess 11 of the shaft hole 3 from the inner wall through hole 10 of the receiving hole 9. In the front end of the receiving hole (9), the lock unit (13) is received at the front end of the receiving hole (9) and fixed to the operating shaft (5), and the driving cam portion (14) of the latch (12) is fixed. The joint member 15 provided at the distal end is rotatably received in the middle of the receiving hole 9, and the front end of the joint member 15 is connected to the rotor 16 of the lock unit 13 so as to be interlocked. An annular groove 17 is provided on the outer circumferential surface of the joint member 15, and an O-ring 18 press-contacted to the inner surface of the receiving hole 9 of the operation shaft portion 5 is inserted into the annular groove 17. Put it in.

Description

Watertight Door Lock Handle

(Technology to which the draft belongs)

This invention is used for a switchboard accommodating box etc. and relates to the door lock handle apparatus which a detent plate separates from the receiving part by the side of a fixed frame body by rotating a handle by a predetermined angle.

(Conventional technology)

In the door lock handle device disclosed in Japanese Patent Application Laid-Open No. 43-8300, the operation shaft of the handle is rotatably inserted into the shaft hole of the receiving seat body fixed to the door, Connect the detent plate to the front end of the operation shaft part, install the receiving hole in the operation shaft part to the front surface side, and engage the inner shaft recess of the shaft hole from the inner wall through hole of the receiving hole, A cam portion for locking the lock stop of rotation with respect to the receiving hole at the tip of the receiving hole, receiving the locking unit at the front end of the receiving hole and fixing it to the operating shaft, and installing a cam at the tip for driving the latch out of the inner through hole. One joint member is rotatably received in the middle of the receiving hole so that the front end of the joint member can be interlocked with the rotor of the lock unit. And results.

When the door lock handle device is applied to a switchboard storage box or the like of an outdoor installation, it is a problem that rainwater that has invaded from the key hole of the rotor of the lock unit is formed from the gap between the fixed body of the lock unit and the rotor. It penetrates into the receiving hole, rides on the inner surface of the receiving hole, and reaches into the shaft hole of the receiving seat body at the gap between the inner wall through hole and the latch, and also enters the box from the gap between the shaft hole and the operating shaft by riding the inner surface of the shaft hole. This may cause corrosion of the equipment inside or cause an electric leakage accident.

As a countermeasure for this waterproofing, it has been proposed to install an annular groove on the outer circumferential surface of the operating shaft portion and to insert a 0-ring pressed against the inner surface of the shaft hole into the annular groove, but it has been transmitted from the gap between the inner wall through hole and the latch. In order to prevent the movement of rainwater, the annular groove needs to be provided in a small diameter portion on the tip side of the inner wall through-hole.

However, the provision of the annular groove in the small diameter portion of the operating shaft portion in this way means that the cross-sectional area of the portion is further reduced, but the operating shaft portion of the handle is caused by the rotational force during the rotation operation or by contact with other objects. Since the external force of the impact force acts directly, the reduction of the cross-sectional area is inconvenient in that it reduces the strength characteristics of the torsion or bending of the operating shaft.

Accordingly, an object of the present invention is to provide a waterproof door lock handle device capable of accurately preventing the ingress of rainwater through the gap between the inner wall through hole and the latch, without lowering the torsional strength or bending strength of the operating shaft portion. .

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a front view of a state where a lock of a waterproof door lock handle device according to an embodiment of the present invention is filled;

Fig. 2 is a right side view showing the main part of the door lock handle device in a longitudinal section;

(Explanation of symbols for the main parts of the drawing)

1: door 2: receiving seat

3: axial hole of the receiving seat body 4: handle

5: operating shaft of handle 6: fixed frame

7: receiving part of fixed frame body 8: detent plate

9: receiving hole of operating shaft 10: inner wall through hole of operating shaft

11: inner recess of receiving seat body 12: latch

13: Lock unit 14: cam part of latch

15: Rotor of joint member 16 lock unit

17: Annular groove of joint member 18: 0-ring

19: keyhole of the rotor 20: key

Hereinafter, using the reference numerals in the accompanying drawings, the door lock handle device, the operation shaft portion 5 of the handle 4 in the shaft hole 3 of the receiving seat body 2 is fixed to the door (1) To the front end side of the operation shaft part 5 by connecting the detent plate 8 to the receiving part 7 on the side of the fixed frame 6 to the front end side of the operation shaft part 5. An opening receiving hole 9 is provided, and the operating shaft portion 5 is received by engaging the inner shaft recess 11 of the shaft hole 3 from the inner wall through hole 10 of the receiving hole 9. 2) a latch 12 which locks in a non-rotational manner with respect to 2) is received at the front end of the receiving hole 9, and the lock unit 13 is received at the front end of the receiving hole 9, It is fixed and rotatably received in the middle part of the receiving hole 9 the joint member 15 provided with the cam part 14 which disengages and drives the latch 12 from the inner wall through-hole 10. W, is connected to enable association with the rotor 16 of the front end parts of the lock unit 13 of the joint member 15.

In the present invention, the ring-shaped groove 17 is provided on the outer circumferential surface of the joint member 15, and the 0-ring 18 for press-contacting the inner surface of the receiving hole 9 of the operation shaft portion 5 is the ring-shaped groove. Insert into (17).

In the closed state, the door 1 is locked to the fixed frame body 6 in a non-openable manner by engaging the detent plate 8 with the receiving portion 7. The distal end of the latch 12 is engaged with the inner surface recess 11 of the receiving seat body 2. In order to open the door 1, a predetermined key 20 is inserted into the key hole 19 of the rotor 16 of the lock unit 13, and the rotor to the fixed body 13a of the lock unit 13 is inserted. After releasing the lock stop of (16), the rotor 16 is rotated by the key 20 in a predetermined direction.

Since the joint member 15 rotates in conjunction with the rotor 16, the latch 12 driven by the cam portion 14 escapes from the inner concave portion 11 of the receiving seat body 2 at its tip portion. And pushes into the inner wall through hole 10 of the operating shaft portion 5. Since the lock stop of the operation shaft 5 with respect to the receiving seat body 2 is canceled | released by this, the handle 4 becomes rotatable and the detent plate 8 is made to turn by turning the handle 4 to a predetermined direction. It separates from the receiving part 7 on the fixed frame 6 side. Therefore, the door 1 is opened by pushing the handle 4 forward.

(Embodiment of design)

In the illustrated embodiment, as the lock unit 13, a cylinder lock having a known pin tumbler lock mechanism or a disk tumbler lock mechanism is used, and the fixed body portion of the lock unit 13 is integrated with the operation shaft portion 5. Only the rotor 16 formed with the disk tumbler actually mounted therein is inserted into the receiving hole 9 of the operating shaft portion 5, and the fall prevention ring 41 is fitted into the tip end of the rotor 16. The cross-sectional elliptical linking shaft portion 16a of the rotor 16 is fitted into the groove portion 21 of the front end portion of the circumferential joint member 15. The cam portion 14 of the joint member 15 is eccentrically protruded from the distal end surface and inserted into the receiving groove 22 of the proximal end of the latch 12.

The detent plate 8 is fitted into the tip angular shaft portion 5a of the operating shaft portion 5 by the angular hole 23 of the base end, and is connected to the operating shaft portion 5 by the tightening bolt 25 through the washer 24. It is. The handle 4 is pivoted with a cap 26 for closing the front face of the lock unit 10. The shaft portion 27 of the cap 26 is fitted into the through hole 28 of the handle 4. The shaft portion 27 is screwed into the screw 26 to prevent the fall out, and the washer 30 of the screw 29 is fixed. ), A compression coil spring 31 for pulling the cap 26 closer to the handle side is inserted between the handle and the handle 4.

An annular receiving groove 32 is provided on the inner surface of the front end of the shaft hole 3 of the receiving seat body 2, and the 0-ring 33 press-contacts to the outer circumferential surface of the operating shaft portion 5 on the annular receiving groove 32. ) Is inserted. This 0-ring 33 prevents the ingress of rainwater at the contact portion of the seat seat body 2 and the handle 4. The seat seat body 2 inserts the bearing cylinder part 35 into the attachment hole 34 of the door 1, and inserts the back protrusion 37 of the intermediate flange part 36 into the rotation stop hole of the door 1 38. As shown in FIG. ) Is fastened to the door (1) by a nut (39) screwed into the bearing cylinder (35). A circular packing 40 is inserted between the intermediate flange portion 36 and the door 1, and the packing 40 prevents ingress of rainwater from the attachment hole 34 or the rotation stop hole 38. Doing.

As described above, in the present invention, the ring-shaped groove 17 is provided on the outer circumferential surface of the joint member 15, and the 0-ring 18 which is pressed against the inner surface of the receiving hole 9 of the operation shaft portion 5 is annular. Since the rainwater penetrated from the keyhole 19 of the rotor 16 of the lock unit 13 is inserted into the groove 17, the operation shaft portion 5 is separated from the gap between the tumbler and the tumbler receiving groove of the rotor 16. ) Penetrates into the receiving hole 9 and rides on the inner surface of the receiving hole 9 from the gap between the inner wall through hole 10 and the latch 12 to the middle of the shaft hole 3 of the receiving seat body 2. Since the movement is completely prevented by the O-ring 18 thereafter, the keyhole 19 does not enter the fixed frame body 6 from the gap between the shaft hole 3 and the operation shaft portion 5. It has high waterproofing against rainwater from).

In the present invention, since the 0-ring annular groove is not provided in the operating shaft portion 5 of the handle 4, there is no risk of causing a decrease in strength against torsion and bending of the operating shaft portion 5, and the joint Since the member 15 transmits the rotational force of the rotor 16 to the latch 12 and is not a member to which a large torsional or bending force is originally applied, the member 15 is provided with an annular groove 17 in the joint member 15. There is no problem in strength.

Claims (1)

Receiving part 7 on the fixed frame body 6 side by rotatably inserting the operating shaft part 5 of the handle 4 into the shaft hole 3 of the receiving seat body 2 fixed to the door 1. Connecting detent plate 8 to the tip of operating shaft portion 5, and receiving hole 9 opened on the front face side in operating shaft portion 5, and passing through the inner wall of receiving hole 9; Receiving the latch 12 which engages with the inner surface recess 11 of the shaft hole 3 from 10, and locks the operation shaft part 5 unrotably with respect to the receiving seat body 2, receiving hole 9 A cam portion 14 for storing the lock unit 13 at the front end of the receiving hole 9, fixing the lock unit 13 to the operation shaft portion 5, and driving the lock 12 out of the inner wall through-hole 10. ) Is rotatably housed in the middle of the receiving hole 9 so that the front end portion of the joint member 15 can be interlocked with the rotor 16 of the lock unit 13. In the lock door device for the door, a ring-shaped groove 17 is provided on the outer circumferential surface of the joint member 15, and the 0-ring 18 which presses against the inner surface of the receiving hole 9 of the operating shaft portion 5 corresponds. Waterproof door lock handle device characterized in that inserted into the annular groove (17).