CN104097878A

CN104097878A - Locking device at bottom of container door panel

Info

Publication number: CN104097878A
Application number: CN201410339511.6A
Authority: CN
Inventors: 钟世雷; 周红卫; 汤文昌; 许可金
Original assignee: JIASHAN XINHUACHANG INT'L CONTAINERS Co Ltd
Current assignee: JIASHAN XINHUACHANG INT'L CONTAINERS Co Ltd
Priority date: 2014-07-10
Filing date: 2014-07-10
Publication date: 2014-10-15

Abstract

The invention discloses a locking device at the bottom of a container door panel. The locking device comprises a plurality of U-shaped or H-shaped lock seats fixed on the lower portion of the door panel. Lock hooks corresponding to the lock seats and hooked onto the same are disposed on the front end face of a threshold. Pull rods are connected to the lock hooks. The locking device is characterized in that the pull rods are connected with swing arms mounted on the lower surface of a base plate by through holes in the threshold, the swing arms are fixed on a lock rod, the outer end of the lock rod is connected with a swing handle through a pin, the outer surface of a container lateral plate on the side with the swing handle is provided with a limit block, the limit block exactly clamps in front of the swing handle to prevent the swing handle from rotating so as to release locking when the lock hooks are hooked onto the lock seats and locked with the same, and an anti-disconnection device used when the swing handle is located at a locking position and a swing handle positioning device used when the lock hooks release locking are further disposed on the outer surface of the container lateral plate. The locking device is simple in structure, reliable in locking and convenient to use.

Description

The latching device of container door panel bottom

Technical field

The present invention relates to freight container, relate in particular to the latching device of a kind of container door panel bottom.

Background technology

Freight container has become the international standard transportation means of a kind of multimetering transport.Common freight container includes: base plate and the side plate in base plate both sides, the top board that relative with base plate and biside plate are fixing, in one end of base plate and with the end plate that biside plate and plate are fixed together, on the corner post of the base plate other end, be fixed with respectively openable door-plate.On door-plate, be provided with and base plate and the fixing latching device of door-plate.And common latching device is in the time filling goods in freight container, in transportation, under powerful impulsive force, the bottom of door-plate and the cross sill of doorframe are easily out of shape, occur gap, and the goods in freight container is lost or leaked from gap, to environment.Although there are 2,009,100,917,202 1 kinds of freight containers of patent, solve preferably the locking of door-plate and base plate, but it must be by upwards bending of base plate, thereby below base plate, form a spatial accommodation, be used for installing latching device, this can cause freight container commonality poor, at a container door interruption-forming ridge, brings difficulty to unloading.Still go back in addition demand motive device, its actuating device needs the driving cylinder of a pair of bevel gear, cylinder or oil cylinder etc., and structure is very complicated, and manufacturing cost is high, and reliability is also poor, uses cumbersome.

Summary of the invention

The object of the present invention is to provide the latching device of a kind of simple in structure, reliable lock, container door panel bottom easy to use.

In order to reach above-mentioned requirements, the present invention is achieved in that it includes and is fixed on that door-plate bottom takes the shape of the letter U or multiple locks of H shape, on threshold front end face, be provided with corresponding with lock and hook the latch hook of lock, on latch hook, be connected with pull bar, it is characterized in that the through hole of described pull bar on threshold is connected with the swing arm that is arranged on base plate lower surface, swing arm is fixed on locking bar, outer end at locking bar is connected with swing handle through bearing pin, on the container side plate outside face that has swing handle one side, be provided with limiting stopper, the position of limiting stopper is in the time that latch hook catches on lock and locks, limiting stopper be just in time stuck in swing handle before, stop swing handle to rotate and loosen locking, the registration device of swing handle while being also provided with the anti-drop device of swing handle in the time of locked position and latch hook ejected position on described container side plate outside face.

Described limiting stopper includes the adapter plate being fixed on container side plate outside face, is welded with upright blend stop on adapter plate.

Described anti-drop device is the connecting strap being fixed with on swing handle with lockhole, with the container side plate outside face of connecting strap correspondence position on be fixed with rotating locking plate, on locking plate, be shaped with the knock hole corresponding with lockhole.

Described registration device is in the time of latch hook ejected position, is fixed with the collar that is enclosed within swing handle upper end that can stir on container side plate outside face.

Described pull bar two ends are provided with length-adjustable shaft clevis.

According to the latching device of the container door panel bottom of such scheme design, the through hole of pull bar on threshold is connected with the swing arm that is arranged on base plate lower surface, and this keeps intact the base plate of freight container substantially, can not form bank on the doorway of freight container.And simplify traditional actuating device, as long as pull swing handle, just can realize easily the locking of latch hook to lock or loosen, also can utilize anti-drop device to lock, prevented from arbitrarily opening the door, played safety and anti-theft function.It has simple in structure, manufacture and easy to use, the advantage of reliable lock.

Brief description of the drawings

Fig. 1 is the latching device front view of container door panel bottom;

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

Fig. 3 is A-A profile when latch hook catches on lock in Fig. 1;

Fig. 4 is constitution diagram when latch hook does not catch on lock in Fig. 3;

Fig. 5 be in Fig. 1 F to swing handle the constitution diagram in when locking;

Fig. 6 is the constitution diagram of swing handle in the time not locking in Fig. 5;

Fig. 7 is the enlarged drawing in C region in Fig. 5;

Fig. 8 is the B-B section-drawing in Fig. 7;

Fig. 9 is the D-D profile in Fig. 2;

Figure 10 is the front view of lock;

Figure 11 is the left view of Figure 10.

In figure: 1, door-plate; 2, lock; 3, threshold; 4, latch hook; 5, pull bar; 6, through hole; 7, base plate; 8, swing arm; 9, locking bar; 10, shaft clevis; 11, bearing pin; 12, swing handle; 13, container side plate; 14, limiting stopper; 15, adapter plate; 16, blend stop; 17, anti-drop device; 18, lockhole; 19, connecting strap; 20, locking plate; 21, knock hole; 22, the collar.

Detailed description of the invention

Below in conjunction with the drawings and specific embodiments, the invention will be further described.

Fig. 1 to Fig. 9 is the locking device structure schematic diagram of container door panel bottom.As seen from the figure, it include be fixed on that door-plate 1 bottom takes the shape of the letter U or 4 locks 2 of H shape as shown in Figure 10,11, on threshold 3 front end faces, be provided with corresponding with lock 2 and hook 4 latch hooks 4 of lock 2, on latch hook 4, be connected with pull bar 5, the through hole 6 of pull bar 5 on threshold 3 be connected with the swing arm 8 that is arranged on base plate 7 lower surfaces, swing arm 8 is fixed on locking bar 9, and described pull bar 5 two ends are provided with length-adjustable shaft clevis 10 as shown in Figure 3.Outer end at locking bar 9 is connected with swing handle 12 through bearing pin 11, on container side plate 13 outside faces that have swing handle 12 1 sides, be provided with limiting stopper 14, the position of limiting stopper 14 is in the time that latch hook 4 catches on lock 2 and locks, limiting stopper 14 be just in time stuck in swing handle 12 before, stop swing handle 12 rotate and loosen locking as shown in Figure 5.Described limiting stopper 14 includes the adapter plate 15 being fixed on container side plate 13 outside faces, is welded with upright blend stop 16 on adapter plate 15.On described container side plate 13 outside faces, be also provided with the anti-drop device 17 of swing handle 12 in the time of locked position as shown in Figure 7, Figure 8, described anti-drop device 17 is the connecting straps 19 that are fixed with on swing handle 13 with lockhole 18, with container side plate 13 outside faces of connecting strap 19 correspondence positions on be fixed with rotating locking plate 20, on locking plate 20, be shaped with the knock hole corresponding with lockhole 18 21, when use, can in lockhole 18 and knock hole 21, lock, prevent that others from arbitrarily opening the door.On container side plate 13 outside faces, be also provided with in latch hook 4 ejected position as shown in Figure 4 time, for the registration device of fixing swing handle 12, this registration device is on container side plate 13 outside faces, to be fixed with the collar 22 that is enclosed within swing handle 12 upper ends that can stir as shown in Figure 6, prevents that swing handle 12 from outwards opening.

Claims

1. the latching device of container door panel bottom, it includes and is fixed on that door-plate bottom takes the shape of the letter U or multiple locks of H shape, on threshold front end face, be provided with corresponding with lock and hook the latch hook of lock, on latch hook, be connected with pull bar, it is characterized in that the through hole of described pull bar on threshold is connected with the swing arm that is arranged on base plate lower surface, swing arm is fixed on locking bar, outer end at locking bar is connected with swing handle through bearing pin, on the container side plate outside face that has swing handle one side, be provided with limiting stopper, the position of limiting stopper is in the time that latch hook catches on lock and locks, limiting stopper be just in time stuck in swing handle before, stop swing handle to rotate and loosen locking, the registration device of swing handle while being also provided with the anti-drop device of swing handle in the time of locked position and latch hook ejected position on described container side plate outside face.

2. the latching device of container door panel according to claim 1 bottom, is characterized in that described limiting stopper includes the adapter plate being fixed on container side plate outside face, is welded with upright blend stop on adapter plate.

3. the latching device of container door panel according to claim 1 bottom, it is characterized in that described anti-drop device is the connecting strap being fixed with lockhole on swing handle, on the container side plate outside face corresponding with connecting strap, be fixed with rotating locking plate, on locking plate, be shaped with the knock hole corresponding with lockhole.

4. the latching device of container door panel according to claim 1 bottom, is characterized in that described registration device is in the time of latch hook ejected position, is fixed with the collar that is enclosed within swing handle upper end that can stir on container side plate outside face.

5. the latching device of container door panel according to claim 1 bottom, is characterized in that described pull bar two ends are provided with length-adjustable shaft clevis.