CN2647998Y

CN2647998Y - Door lock for farming vehicle

Info

Publication number: CN2647998Y
Application number: CN 03268509
Authority: CN
Inventors: 张淑芬
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-06-25
Filing date: 2003-06-25
Publication date: 2004-10-13
Anticipated expiration: 2013-06-25

Abstract

The utility model relates to an agricultural vehicle door lock. The utility model includes a bolt staple which can be arranged on a vertical column that is arranged at the back of a vehicle door and a lock body mechanism which can be arranged on the vehicle door body, the lock body mechanism includes a lock shell and a frame which are fixedly connected together, a lock shaft passes through the lock shell and the frame, one end of the lock shaft is fixedly provided with a ratchet wheel, while the other end of the lock shaft is fixedly provided with a lock tongue, a torsion spring is sleeved between the ratchet wheel and the lock tongue, a vertical shaft is arranged on the frame, a ratchet, a shift block and a triangle fork are sleeved on the vertical shaft, the top end of the vertical shaft is fixedly provided with a cylindrical pin, one end of the shift block is provided with a torsion spring, and the ratchet is meshed with the ratchet wheel. A pull shift fork is arranged on the frame via a rotation shaft, the torsion spring is arranged on the rotation shaft, one end of the pull shift fork is connected with a hook plate, the other end of the pull shift fork is connected with a push rod and a swing rod via the rotation shaft, one end of the swing rod is articulated with the pull shift fork, while the other end of the swing rod is articulated with the triangle fork via a hinge shaft. The locking and the opening of the vehicle door are safe and reliable; in addition, the utility model realizes the functions of internal and external locking, anti-mislocking and the locking out of the vehicle without the key.

Description

The agricultural vehicle door lock

Technical field

The utility model relates to a kind of agricultural vehicle door lock.

Technical background

Agricultural vehicle is owing to be subjected to the influence of price factor, mostly simple in structure, poor reliability, function singleness.Along with the quality raising and the model change of agricultural vehicle product, existing door lock can not adapt to the demand for development of agricultural vehicle.

Summary of the invention

The purpose of this utility model provide have the certain mass reliability, Vehicle lock that structural performance meets the agricultural vehicle standard-required.

For achieving the above object, the utility model adopts following technical scheme.

Agricultural vehicle door lock described in the utility model comprises the door nose that can install on the car door rear column and the lock body mechanism that is installed on the car door body, lock body mechanism comprises lock housing and the support that is fixed together, lock shaft is through on lock housing and the support, one end of lock shaft is fixed with ratchet, the other end is fixed with dead bolt, be set with torsion spring on the lock shaft between ratchet and the dead bolt, it is characterized in that: have vertical shaft on the support of ratchet one side, ratchet and shifting block, triangle fork are sleeved on the vertical shaft, the top of vertical shaft is fixed with straight pin, one end of shifting block has extension spring, ratchet and ratchet engaged.

By rotating shaft the handle shift fork is installed on the support, has torsion spring in the rotating shaft, an end of handle shift fork connects hook plate, and the other end connects push rod and fork by rotating shaft, and an end of fork is hinged with the handle shift fork, and the other end is hinged by hinge and triangle fork.

After adopting technique scheme, the locking of car door with open safe and reliablely, and realized inside and outside locking, anti-error lock and do not have under the key state function of locking outside car.

Description of drawings

Fig. 1 is an example structure schematic diagram of the present utility model;

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

Fig. 3 is the A-A sectional view of Fig. 2;

Fig. 4 is the structural representation of ratchet;

Fig. 5 is the structural representation that sour jujube grabs;

Fig. 6 is the structural representation of fork;

Fig. 7 is the structural representation of triangle fork;

Fig. 8 is the left view of Fig. 7;

Fig. 9 is the vertical view of Fig. 7;

Figure 10 is the structural representation of shifting block;

Figure 11 is the left view of Figure 10;

Figure 12 is the vertical view of Figure 10.

The specific embodiment

As Fig. 1, Fig. 2, shown in Figure 3, agricultural vehicle door lock described in the utility model is a supporter by lock housing 3, support 4, and lock shaft 2 two ends are riveted dead bolt 1 and ratchet 5 respectively, and the structure of ratchet 5 as shown in Figure 4.Torsion spring 17 is installed in the middle of the lock shaft 2.Riveting has vertical shaft 14 below support 4, and ratchet 12 shown in Figure 5 is riveted together with shifting block 13 and is sleeved on the vertical shaft 14 with triangle fork 11.Straight pin 15 is fixed on vertical shaft 14 tops, and ratchet 12, shifting block 13, triangle fork 11 are assembled on the vertical shaft 14.Shifting block 13 has kept ratchet 12 and ratchet 5 engagements under the effect of extension spring 19, torsion spring 20 is housed below triangle fork 11, and to make the triangle fork be that the center has two transpositions up and down with the dead point.And straight pin 15 right sides position triangle fork 11, handle shift fork 7 is housed above support 4, the one end contacts with hook plate 6, other end riveted joint push rod 8 and fork 9, handle shift fork 7 rises at torsion spring 18 effect bottom right side direction upper fins, fork 9 lower ends link to each other with triangle fork 11 by riveting axle 10, two pendulum positions about triangle fork 11 swings up and down fork 9 is had.

Closing of car door: closed door door nose 16 drives ratchets 5 by lock shaft 2 and rotates with dead bolt 1 collision, dead bolt 1, and ratchet 12 slips in the tooth or No. two teeth of ratchet, has realized the functional requirement of two locking gears of door lock.At this moment ratchet 12 has stoped ratchet 5 counter-rotatings, and dead bolt 1 is in engagement with door nose 16, and car door promptly is closed.If lock body is in the lock position when closed door, (promptly the locking button is pressed in the door) fork 9 is put left end, ratchet 12 drives shifting block 13 and rotates under ratchet 5 effects, and shifting block 13 left upper ends promotion fork 9 is swung to the right, drives triangle fork 13 to rotate, 15 pairs of triangle forks 13 of straight pin position, interior locking button is upspring, and fork 9 pendulum is to the right side, close end after, car door can be opened by outer handle, thereby has realized anti-error lock function requirement.

Car door opening: mention or use triangle fork 11 to clockwise rotate with the key turns tapered end by interior locking knob, triangle fork 11 drives fork 9 pendulum to the right side, lock body is in opening, Internal handle spurs hook plate 6 or handle shift fork 7 is clockwise rotated outward, and fork 9 is moved downward, and fork 9 promotes shifting blocks 13 rotations, thereby drive ratchet 12 and break away from engagement with ratchet 5, dead bolt 1 rotates under torsion spring 17 effects, and door nose 16 is ejected, and car door promptly is opened.

The locking of car door: closed door is pressed interior locking button or is used the key turns tapered end from car inside, triangle fork 11 is rotated counterclockwise, fork 9 is put to left lateral position, at this moment fork 9 moves downward, can not promote shifting block 13, ratchet 12 still is in engagement with ratchet 5, all can't reach the purpose of car door locking by club hand opening car door inside and outside car.

The utility model has increased latch functions under the no key state, thereby has made things convenient for car owner's use, and this function is as follows: press interior locking button in car.Make lock body be in lockup state, mention the external handlebar closed door, push rod 8 drives fork 9 and moves to lower end position, though this moment, shifting block 13 upper left quarters were swung to the right, can't promote fork 9, closed door puts down external handlebar, fork still is in left lateral position, and car door is promptly by locking.

Claims

1, the agricultural vehicle door lock, comprise the door nose that to install on the car door rear column and the lock body mechanism that is installed on the car door body, lock body mechanism comprises lock housing (3) and the support (4) that is fixed together, lock shaft (2) is through on lock housing (3) and the support (4), one end of lock shaft (2) is fixed with ratchet (5), the other end is fixed with dead bolt (1), be set with torsion spring on the lock shaft (2) between ratchet (5) and the dead bolt (1), it is characterized in that: have vertical shaft (14) on the support (4) of ratchet (5) one sides, ratchet (12) and shifting block (13), triangle fork (11) is sleeved on the vertical shaft (14), the top of vertical shaft (14) is fixed with straight pin (15), one end of shifting block (13) has extension spring (19), ratchet (12) and ratchet (5) engagement.

2, agricultural vehicle door lock according to claim 1, it is characterized in that: support (4) is gone up by rotating shaft handle shift fork (7) is installed, have torsion spring (18) in the rotating shaft, one end of handle shift fork (7) connects hook plate (6), the other end connects push rod (8) and fork (9) by rotating shaft, one end of fork (9) is hinged with handle shift fork (7), and the other end is hinged with triangle fork (11) by hinge (10).