CN202242828U

CN202242828U - Anti-drop device for full-hanging towing hook

Info

Publication number: CN202242828U
Application number: CN2011203892924U
Authority: CN
Inventors: 沈贱民; 叶爱凤; 王金胜
Original assignee: Dongfeng Motor Co Ltd
Current assignee: Dongfeng Commercial Vehicle Co Ltd
Priority date: 2011-10-13
Filing date: 2011-10-13
Publication date: 2012-05-30
Anticipated expiration: 2021-10-13

Abstract

The utility model discloses a hang entirely and draw hook dropout prevention means, including lockpin and handle, the tip at the lockpin is connected to the one end of handle, the middle part swing joint of handle has the locking plate of the groove looks cooperation chucking that sets up with the shaft end of drawing the hook, the other end of handle is connected with the pintle. The utility model discloses an anti-drop locking is realized to lockpin assembly insertion draw hook, is provided with the groove of fixed locking plate simultaneously on drawing the hook, can realize through rotatory handle that the hook has the groove of fixed locking plate to block and take out two states, lockpin assembly and draw the fixed of hook are through the elasticity prevention rock that the locking plate card produced in the groove of drawing the hook, the pintle fixes lockpin and draw the hook through the hole of drawing the hook and lockpin, locking is reliable; meanwhile, the lock pin assembly bears the force which is transmitted to the towing hook by the trailer in the up-and-down direction, so that the trailer can be effectively prevented from falling off; the installation and the disassembly of the pintle are also very convenient, and the pintle can be repeatedly installed and disassembled, and has long service life.

Description

The full hauling hook anti-drop device of hanging

Technical field

The utility model relates to the towing pin device on the full ailer-towing vehicle, is specifically related to hang full the hauling hook anti-drop device.

Background technology

Full ailer-towing vehicle generally is connected trailer through hauling hook with the vehicle frame transom beam, will prevent especially that in connection procedure hauling hook from coming off.Present full extension hauling hook anti-drop device mostly is latch to be broken off with the fingers and thumb curved, is fixed on the hauling hook, because latch Assembly &Disassembly operating difficulties, and latch breaks curved fracture easily off with the fingers and thumb after using once more, can not repeated use, and service life is short.Like Chinese patent CN200920024648.7, name is called the automatic towing pin device of full ailer-towing vehicle, in the scheme of this patent record; Adopt the pin-and-hole that connects towing pin is set on the hauling hook, towing pin is connected with air cylinder tie rod through jam nut, and air cylinder tie rod is connected with cylinder; Air cylinder tie rod is with holddown spring outward, and holddown spring one end links to each other with towing pin, and the other end links to each other with cylinder; Though realized that chaufeur directly through rocker switch control towing pin, need not leave operator's compartment towing pin and hauling hook are broken away from; What the hauling hook anti-drop device adopted is that holddown spring compresses towing pin; In full ailer-towing vehicle high speed walking process, the anti-drop device reliability is not high, has the danger that comes off.

Summary of the invention

The purpose of the utility model provide a kind of simple in structure, Assembly &Disassembly convenient, can repeated use and the full extension hauling hook anti-drop device that can avoid trailer to come off reliably.

For realizing above-mentioned purpose, the utility model adopts following technical scheme:

A kind of full extension hauling hook anti-drop device comprises lock pin and handle, and an end of handle links to each other with the end of lock pin; The middle part of said handle is connected with locking plate, and said locking plate is an elastic collet, an end of locking plate and handle is overlapping is hinged together; The separated attitude of the other end and handle; Establish the groove that is used to tighten handle and locking plate in the end of hauling hook, be connected with fibula on the said handle, on hauling hook and lock pin, establish the through hole that supplies fibula to pass.

In technique scheme, the other end of said handle links to each other with fibula through chain link, and the two ends of chain link connect handle and fibula respectively, makes handle and fibula flexibly, be connected securely.

In technique scheme, said chain link makes things convenient for the rotation of chain link on different directions through the other end of chain cable clasp connection handle.

In technique scheme, an end of said handle is a semicircular structure, and the other end is a circular configuration.

The end of said locking plate is through the middle part of rivet at handle.

The lock pin assembly of the utility model has handle, locking plate, chain cable and fibula etc.; Insert hauling hook through the lock pin assembly and realize the slip-off preventing locking; Simultaneously hauling hook is provided with the fixedly groove C of locking plate, can realize two states that fixing locking plate is blocked and extracts out by groove through rotary handle, lock pin assembly and hauling hook fixedly be to be stuck in the elastic force realization that produces in the groove of hauling hook through locking plate; Fibula is fixed pinning, reliable lock through the hole of hauling hook and lock pin with lock pin and hauling hook; The lock pin assembly bears the power that trailer is passed to the hauling hook above-below direction simultaneously, can effectively avoid trailer to come off; The fibula Assembly &Disassembly is also very convenient, also Assembly &Disassembly repeatedly, long service life.

Description of drawings

Main TV structure scheme drawing when Fig. 1 is the utility model locking;

Fig. 2 is the left TV structure scheme drawing of Fig. 1;

Fig. 3 is the plan structure scheme drawing of Fig. 1;

The main TV structure scheme drawing that Fig. 4 unclamps when being the utility model extraction hauling hook;

Fig. 5 is the left TV structure scheme drawing of Fig. 4;

Fig. 6 is the plan structure scheme drawing of Fig. 4;

Among the figure: 1, hauling hook, 2-1, lock pin, 2-2, handle, 2-3, locking plate, 2-4, chain cable clasp, 2-5, chain link, 2-6, fibula, 2-7, rivet, C, groove.

The specific embodiment

Below in conjunction with accompanying drawing and specific embodiment the utility model is done further to describe in detail:

Consult shown in Fig. 1-6, hang the hauling hook anti-drop device entirely and comprise a kind of full extension hauling hook anti-drop device, comprise lock pin 2-1 and handle 2-2; The end of handle 2-2 links to each other with the end of lock pin 2-1; The middle part of handle 2-2 is connected with locking plate 2-3, and locking plate 2-3 is an elastic collet, the end of locking plate 2-3 and handle 2-2 is overlapping is hinged together; The other end and the separated attitude of handle 2-2; Establish the groove that is used to tighten handle 2-2 and locking plate 2-3 in the end of hauling hook, be connected with fibula 2-6 on the said handle 2-2, on hauling hook and lock pin, establish the through hole that supplies fibula 2-6 to pass.The other end of handle 2-2 links to each other with fibula 2-6 through chain link 2-5; The two ends of chain link 2-5 connect handle 2-2 and fibula 2-6 respectively; Chain link 2-5 is through the other end of chain cable clasp 2-4 connection handle 2-2, and the end of handle 2-2 is a semicircular structure, and the other end is a circular configuration; The relative lock pin 2-1 of handle 2-2 center is not wait highly, groove C on the hauling hook is blocked and fixedly locking plate 2-3 or locking plate 2-3 shift out groove C and extract out outward through rotary handle 2-2.

Consult Fig. 1, Fig. 2, lock pin assembly locking state shown in Figure 3, the lock pin assembly inserts in the lockpin hole of hauling hook 1, and the hole is gone up with lock pin 2-1 in the hole that fibula 2-6 passes on the hauling hook 1, and hauling hook 1 and lock pin 2-1 are buckled together; The round end of handle 2-2 is stuck in the groove C of hauling hook 1, and the lock pin assembly is not come off, and the lock pin assembly is pressed in the groove C of hauling hook 1 through locking plate 2-3 simultaneously, and the elastic force that produces prevention is rocked, and reliable lock has prevented that effectively lock pin 2-1 from coming off.

Consult Fig. 4, Fig. 5, the state when lock pin assembly shown in Figure 6 is extracted out; Use when breaking off relations; 2-6 unties extraction fibula, and turning handle 180 degree make locking plate 2-3 leave groove C, because handle 2-2 one end is semicircle state; Be that round end has cut away one on one side, the relative lock pin of handle center is not wait height.The groove C of hauling hook 1 can't stop handle 2-2, thereby can extract the lock pin assembly out.Need wagon coupling trip be contained in 1 last time of hauling hook, be fixed on the lock pin assembly on the hauling hook 1 by opposite order again and get final product.

During the utility model assembling, locking plate 2-3 is riveted together through the middle part of rivet 2-7 and handle 2-2, handle 2-2 is welded on the lock pin 2-1 again, inserts the purpose that hauling hook 1 is realized slip-off preventing through the lock pin assembly; Hauling hook is provided with the fixedly groove C of locking plate; The lock pin assembly has handle, locking plate etc., because the relative lock pin of handle center is not to wait highly, can realize through rotary handle in the groove that is stuck in hauling hook of locking plate and two states extracting out outside the groove; Being stuck in the elastic force prevention that produces in the groove of hauling hook through locking plate rocks; Make lock pin assembly and hauling hook fixing together, fibula is buckled together both through the hole of hauling hook and lock pin simultaneously, and the lock pin assembly can bear the power that trailer is passed to the hauling hook above-below direction; Avoid trailer to come off; The fibula Assembly &Disassembly is simple and convenient, and fibula can also repeated use, the long service life of device.

The content that this specification sheets is not done to describe in detail belongs to this area professional and technical personnel's known prior art.

Claims

1. hang the hauling hook anti-drop device entirely for one kind; It is characterized in that: comprise lock pin (2-1) and handle (2-2), an end of said handle (2-2) links to each other with the end of lock pin (2-1), and the middle part of said handle (2-2) is connected with locking plate (2-3); Said locking plate (2-3) is an elastic collet; One end of locking plate (2-3) and overlapping being hinged together of handle (2-2), the separated attitude of the other end and handle (2-2) is established the groove that is used to tighten handle (2-2) and locking plate (2-3) in the end of hauling hook; Be connected with fibula (2-6) on the said handle (2-2), on hauling hook and lock pin, establish the through hole that supplies fibula (2-6) to pass.

2. full extension hauling hook anti-drop device according to claim 1 is characterized in that: the other end of said handle (2-2) links to each other with fibula (2-6) through chain link (2-5).

3. full extension hauling hook anti-drop device according to claim 2 is characterized in that: said chain link (2-5) connects the other end of handle (2-2) through chain cable clasp (2-4).

4. according to each described full extension hauling hook anti-drop device of claim 1-3, it is characterized in that: an end of said handle (2-2) is a semicircular structure, and the other end is a circular configuration.

5. full extension hauling hook anti-drop device according to claim 4 is characterized in that: the end of said locking plate (2-3) is riveted on the middle part of handle (2-2) through rivet (2-7).