CN201065697Y

CN201065697Y - Lock latch for signal lamp box

Info

Publication number: CN201065697Y
Application number: CNU2007201247204U
Authority: CN
Inventors: 唐德瑜
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-07-16
Filing date: 2007-07-16
Publication date: 2008-05-28
Anticipated expiration: 2017-07-16

Abstract

The utility model relates to a lock catch used on a signal lamp box, comprising a lock bar, a lock body, and a lock core plate, which is characterized in that: the front part of the threaded section of the lock bar is in the shape of a flat square, and the lock body is in threaded connection with the lock bar; a slotted hole is arranged on the lock body, and the center line of the slotted hole is perpendicular to the axial line of the lock bar. The lock core plate is arranged in the slotted hole on the lock body, and an via hole fitted with the outside diameter of the lock bar is arranged on the lock core plate; a lock hole is arranged on one side o f the via hole, and a bar-shaped hole in closed connection with the via hole is arranged on the other side; the width of the bar-shaped hole is corresponding to that of the flat square part of the lock bar, which passes through the via hole or bar-shaped hole on the lock core plate. By adopting the technical proposal, the utility model has the advantages of low cost, simple structure, convenient use, reliable locking, no need to slot a lock hole on the lock bar, better strength, wide application range, and strong versatility.

Description

Be used for the snap close on the Traffic signal box

Technical field

The utility model relates to a kind of railway equipment, particularly a kind of locking device that is used for Traffic signal box.

Background technology

The locking device of existing railway signal lamp box generally comprises locking bar, lock body with threaded hole, locking bar is provided with screw thread, front portion at the locking bar thread segment is provided with lockhole, on lock body, be hinged with snap close, between the casing of Traffic signal box and the case lid lock is to lock by locking device like this: not threaded locking bar one end and casing is hinged, connect lock body on the end of thread of locking bar, by the rotation lock body, lock body is against on the hangers of Box Cover, after clamping between Box Cover and the casing, again snap close is buckled on the locking bar, the locking bar front end stretches out, pass lockhole on the locking bar with tapered end after, lock, thereby reach the purpose of locking between signal lamp casing and the case lid, realize antitheft effect, but there is following shortcoming in the locking device of this form of structure: it is to offer lockhole on locking bar, and this lockhole can not be too little, can not be too big, lockhole is too little, makes bigger tapered end be not easy to pass, and has promptly enabled tapered end and has passed, this lock is also very little, destroyed easily; Lockhole is too big, and the distance between lockhole wall and the locking bar outer wall is reduced, and has reduced the intensity of locking bar, and is destroyed easily, can not realize antitheft effect; Perforate on threaded locking bar, its complex manufacturing technology has obviously improved cost.

Summary of the invention

The purpose of this utility model just provide a kind of simple in structure, cost is low is used for snap close on the Traffic signal box, its not only easy to use, reliable lock has also avoided offering lockhole on locking bar, obviously improved intensity.

The purpose of this utility model is to realize by such technical scheme, it includes locking bar, lock body and cylinder plate, the front portion of thread segment is deltiod on the locking bar, lock body is threaded with locking bar, on lock body, be provided with slotted eye, the center line of this slotted eye and locking bar axial line are perpendicular, cylinder plate is positioned at the slotted eye of lock body, cylinder plate is provided with the via hole that matches with the locking bar external diameter, side at via hole is provided with lockhole, opposite side is provided with and the closed bar hole that links to each other of described via hole, and the width of this bar hole width and the flat quadrate part of locking bar position is complementary, and locking bar passes via hole or the bar hole on the cylinder plate.

The utility model in use, not threaded locking bar one end and signal lamp casing is hinged, the thread segment of locking bar passes the via hole on lock body and the cylinder plate, when rotational lock puts in place, pull out cylinder plate, make the deltiod position of locking bar be positioned at the bar hole of cylinder plate, the smooth limit at locking bar deltiod position is contacted with the straight flange of bar hole, because the width of bar hole width and the flat quadrate part of locking bar position is complementary, thereby block cylinder plate, the restriction cylinder plate is rotated with respect to locking bar, promptly limited the rotation of lock body with respect to locking bar, pass the lockhole that is exposed to outside the lock body by tapered end and lock, thereby reach the purpose of locking between signal lamp casing and the case lid, realize antitheft effect; When needs opening signal lamp box covers, open and take off tapered end, cylinder plate resets, make locking bar be positioned at the via hole of cylinder plate,, cylinder plate can be rotated with lock body with respect to locking bar because via hole and locking bar external diameter match, screw out lock body, Traffic signal box and signal lamp case lid are separated.Because the distance between lockhole wall and the cylinder plate outer wall increases, and has obviously improved intensity, machining hole on flat-form material, it is simple that it is made, and obviously reduced cost.Certainly the utility model also can be used for other casing and case lid between lock.

Owing to adopted technique scheme, the utlity model has following advantage:

1, it has avoided offering lockhole on locking bar, has obviously improved intensity;

2, cost is low, simple in structure;

3, applied widely, compatibility is strong.

Description of drawings

Description of drawings of the present utility model is as follows:

Fig. 1 is in the structural representation of rotatable state for the utility model lock body;

Fig. 2 is the vertical view of Fig. 1;

Fig. 3 is the A-A sectional drawing of Fig. 1;

Fig. 4 is in the structural representation of locking state for the utility model lock body;

Fig. 5 is the vertical view of Fig. 4;

Fig. 6 is the B-B sectional drawing of Fig. 4;

Fig. 7 is a C-C sectional drawing among Fig. 5;

Among the figure: 1. locking bar; 2. lock body; 3. thread segment; 4. slotted eye; 5. cylinder plate; 6. help the commentaries on classics part; 7. via hole; 8. bar hole; 9. lockhole; 10. spacer pin.

The specific embodiment

The utility model is described in further detail below in conjunction with drawings and Examples:

Shown in Fig. 1～7, the utility model has locking bar 1, lock body 2 and cylinder plate 5, the front portion of thread segment 3 is deltiod on the locking bar 1, lock body 2 is threaded with locking bar 1, on lock body 2, be provided with slotted eye 4, the center line of this slotted eye 4 and locking bar 1 axial line are perpendicular, cylinder plate 5 is positioned at the slotted eye 4 of lock body 2, cylinder plate 5 is provided with the via hole 7 that matches with locking bar 1 external diameter, side at via hole 7 is provided with lockhole 9, opposite side is provided with and the described via hole 7 closed bar holes 8 that link to each other, and the width of these bar hole 8 width and locking bar 1 flat quadrate part position is complementary, and locking bar 1 passes via hole 7 or the bar hole 8 on the cylinder plate 5.

As shown in Figure 3, when needing lock body 2 to rotate, the deltiod position of locking bar 1 is positioned at the via hole 7 of cylinder plate 5, and as shown in Figure 6, when needing lock body 2 chuckings, the deltiod position of locking bar 1 is positioned at the bar hole 8 of cylinder plate 5.

Shown in Fig. 3,6 or 7, in order to make compact conformation, prevent that cylinder plate from dropping, in slotted eye 4, be provided with the via hole 7 that passes on the cylinder plate 5 or the spacer pin 10 of bar hole 8.

Shown in Fig. 1,2,4,5 or 7, for the ease of the rotation lock body, lock body 2 is provided with to help changes part 6.Described help change part can be stretch out on the lock body one section in the form of sheets or the journal stirrup of column, also can be welded on the lock body in the form of sheets or the metal of column, can also be other form.

The utility model is to lock the casing of Traffic signal box and case lid like this:

As Fig. 4,5, shown in 6 or 7, not threaded locking bar one end and signal lamp casing is hinged, the thread segment 3 of locking bar 1 passes the via hole on lock body 2 and the cylinder plate 5, when rotational lock 2 puts in place, pull out cylinder plate 5, the deltiod position of this hour locking lever 1 is positioned at the bar hole 8 of cylinder plate 5, the smooth limit at locking bar 1 deltiod position is contacted with the straight flange of bar hole 8, because the width of bar hole 8 width and locking bar 1 flat quadrate part position is complementary, thereby block cylinder plate 5, restriction cylinder plate 5 is rotated with respect to locking bar 1, promptly limited the rotation of lock body 2 with respect to locking bar 1, pass the lockholes 9 that are exposed to outside the lock body 2 by tapered end and lock, thereby reach the purpose of locking between signal lamp casing and the case lid, realize antitheft effect.

Shown in Fig. 1,2 or 3, when needs opening signal lamp box covers, open and take off tapered end, cylinder plate 5 resets, make locking bar 1 be positioned at the via hole 7 of cylinder plate 5,, cylinder plate 5 can be rotated with lock body 2 with respect to locking bar 1 because via hole 7 matches with locking bar 1 external diameter, screw out lock body 2, Traffic signal box and signal lamp case lid are separated.

Because the distance between lockhole wall and the cylinder plate outer wall increases, and has obviously improved intensity, machining hole on flat-form material, it is simple that it is made, and obviously reduced cost.

Certainly the utility model also can be used for other casing and case lid between lock.

Claims

1. snap close that is used on the Traffic signal box, include locking bar (1), lock body (2) and cylinder plate (5), the front portion that locking bar (1) is gone up thread segment (3) is deltiod, lock body (2) is threaded with locking bar (1), it is characterized in that: on lock body (2), be provided with slotted eye (4), center line of this slotted eye (4) and locking bar (1) axial line are perpendicular, cylinder plate (5) is positioned at the slotted eye (4) of lock body (2), cylinder plate (5) is provided with the via hole (7) that matches with locking bar (1) external diameter, side at via hole (7) is provided with lockhole (9), opposite side is provided with and the closed bar hole (8) that links to each other of described via hole (7), the width of this bar hole (8) width and the flat quadrate part of locking bar (1) position is complementary, and locking bar (1) passes via hole (7) or the bar hole (8) on the cylinder plate (5).

2. the snap close that is used on the Traffic signal box as claimed in claim 1 is characterized in that: be provided with in slotted eye (4) and pass the spacer pin (10) that cylinder plate (5) goes up via hole (7) or bar hole (8).

3. the snap close that is used on the Traffic signal box as claimed in claim 1 is characterized in that: go up the all-in-one-piece setting at lock body (2) and help commentaries on classics part (6).