CN205818823U

CN205818823U - A kind of antitheft tow arm

Info

Publication number: CN205818823U
Application number: CN201620819894.1U
Authority: CN
Inventors: 唐刚
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-08-01
Filing date: 2016-08-01
Publication date: 2016-12-21
Anticipated expiration: 2026-08-01

Abstract

The utility model discloses a kind of antitheft tow arm.Including L-shaped principal arm, regulating arm and dead bolt, the vertical arm of regulating arm and principal arm is slidably, location couples.Principal arm is provided with two-stage holdback device, available a lock locking L-shaped principal arm and regulating arm simultaneously, serves thorough anti-theft function, simplifies anti-theft device, simplifies antitheft operation.

Description

A kind of antitheft tow arm

Technical field

This utility model belongs to machine design and manufacture technical field, especially belongs to auto parts machinery design and leads with manufacturing technology Territory, particularly to a kind of antitheft tow arm of the one for vehicle traction and rescue.

Background technology

Tow arm is that a kind of one end is installed on that automobile chassis draw-bar standard is inserted in square opening soon, the other end is with specific traction Adapter (such as: drag), the suspension member of an interconnection function.It is mainly used in connect and breakdown trailer, fault motor vehicle and other Traction belongings.

The patent such as Publication No. CN204451875U, CN1054459744A, CN302894654S individually discloses relevant The tow arm of adjustment height.

Above-mentioned three kinds of patent ultimate principles are similar to, be all by being installed on L-shaped principal arm, can be at vertical direction regulation model Enclose interior movement to specifying position mate with by the terrain clearance of traction body and to realize highly with the regulating arm of specific drag Regulation.But, while the most unresolved guarantor of all this type patented technologies positive height adjustable function, only lock with a lock simultaneously Whole tow arm, i.e. includes principal arm and regulating arm, solves antitheft problem with scheme simple, convenient, low cost.

Summary of the invention

The purpose of this utility model is: the problem existed for prior art, it is provided that one has height adjustable, only uses One lock can lock the tow arm of principal arm and regulating arm simultaneously, simplifies antitheft operation and reduces antitheft cost.

This utility model is achieved through the following technical solutions:

A kind of antitheft tow arm, including L-shaped principal arm, regulating arm, dead bolt, it is characterised in that: described regulating arm and master The vertical arm of arm slidably, location couple, principal arm is provided with two-stage holdback device, i.e. horizontal arm is provided with the master driven by lock core Dead bolt, main dead bolt is positioned at horizontal arm rear end and inserts square opening position and lock soon with motor-vehicle chassis, and another grade of locking tooth bar is positioned at vertically In arm, together with dead bolt lock adjustment arm position and it is from the removal of vertical arm.

Central axial lockhole chamber, the arm body both sides of being provided with of described horizontal arm arm body are provided with dead bolt hole；Lockhole chamber is installed Having lock core, bent axle connecting shaft, lock bent axle, tooth bar connecting rod, the main dead bolt of left and right separate type, lock core, lock bent axle are by bent axle connecting shaft Becoming axial rotation to connect, main dead bolt is radially rotationally connected symmetry through formula with lock bent axle by lock crankshaft rear end, locks tooth bar Hinge type is become to be connected by tooth bar connecting rod with lock crankshaft front end.

In the vertical arm of described principal arm, vertical direction is provided with the tooth bar lumen pore accommodating locking tooth bar, and locking tooth bar can be at tooth Vertical sliding motion in bar lumen pore；Vertical arm is horizontally arranged one group of through altitude location hole；Described tooth bar lumen pore and location Hole is spatial vertical relation, and horizontal and vertical projecting direction with have geometric projection face to partly overlap to intersect and forming part even It is logical, so that the locking tooth bar being positioned in tooth bar lumen pore can be handed over by forming part physics with the dead bolt pin rod being positioned in hole, location Fork.

The latch locking breach mated with described locking tooth bar tooth top it is provided with in the middle part of two pin rods of described dead bolt.

Described regulating arm has the bayonet socket slided along vertical arm, and bayonet socket is encircling type hatch frame, and bayonet socket both sides are provided with use In location and two groups of dead bolt holes of locking.

Described regulating arm is realized altitude location by dead bolt through the vertical arm in dead bolt hole with L-shaped principal arm and consolidates Even.

The vertical arm both sides of described principal arm are provided with the guiding mated with regulating arm bayonet socket limiting regulating arm glide direction Chute.

Described regulating arm front portion is provided with one group of drag, is installed on regulating arm arm body in the way of screw-socket.

The beneficial effects of the utility model are:

In this utility model, described regulating arm is installed on the vertical of L-shaped principal arm with the bayonet socket matched with described L-shaped principal arm On arm, regulating arm can in the vertical arm of L-shaped principal arm slidably.Under described principal arm lock core lock-out state, described locking The tooth top of tooth bar enters in the latch locking breach on the dead bolt pin rod being positioned in hole, location and forms physical intersection with pin rod, Limit dead bolt to extract from hole, location so that regulating arm can not take out from the vertical arm of L-shaped principal arm, meanwhile, by locking The stretching out of the bent main dead bolt of shaft-driven separate type is inserted square opening soon so that L-shaped principal arm horizontal arm and automobile chassis and is connected, it is achieved that use One lock locking L-shaped principal arm and regulating arm simultaneously, serve thorough anti-theft function, simplify anti-theft device, simplify antitheft operation And reduce antitheft cost.

In this utility model, under described principal arm lock core opening, main dead bolt, locking tooth bar positive stop strip part disappear, and take out Go out dead bolt, regulating arm can in the vertical arm of L-shaped principal arm art skating, reorientate according to hole, location or take out, real Regulating arm altitude mixture control and locking are showed.

Accompanying drawing explanation

Fig. 1 is the side graph structure figure such as before this utility model；

Fig. 2 is this utility model right TV structure figure；

Fig. 3 is this utility model plan structure figure；

Fig. 4 is this utility model backsight structure chart；

Fig. 5 is side structure figure such as grade after this utility model regulating arm；

Fig. 6 is this utility model lock-out state cutting structure chart；

Fig. 7 is this utility model opening cutting structure chart；

Fig. 8 is this utility model locking mechanism structural representation；

Fig. 9 is the side structure figures such as this utility model dead bolt；

Figure 10 is this utility model dead bolt plan structure figure；

Figure 11 is that this utility model locks tooth bar left view；

Wherein, 1 principal arm；11 vertical arm；111 hole, location；112 guide chutes；12 lock bent axles；121 is bent Axle connecting shaft；122 locking tooth bars；1221 tooth bar tooth roots；1222 tooth bar tooth tops；123-separate type main dead bolt left part； 124 separate type main dead bolt right part；125 lock crankshaft front ends；126 lock crankshaft rear ends；127 tooth bar connecting rods；13 lock cores； 14 tooth bar lumen pores；15 lockhole chambeies；16 dead bolt holes；2 regulating arms；21 drags；22 regulating arm bayonet sockets；221 locks Determine pin hole；3 dead bolts；31 dead bolt pin rods；311 latch locking breach.

Detailed description of the invention

Being specifically described this utility model below by embodiment, the present embodiment is served only for entering this utility model Row further instruction, but it is not intended that restriction to this utility model protection domain, those skilled in the art is according to upper State some nonessential improvement that content of the present utility model makes and adjustment falls within the scope of this utility model protection.

In conjunction with Fig. 1 to Figure 11

Embodiment 1

A kind of antitheft tow arm, including: L-shaped principal arm 1, it is connected for inserting square opening soon with motor-vehicle chassis；Regulating arm 2, after End is connected with the vertical arm 11 of principal arm, and the drag 21 of front end connects by traction appliance with by traction machine motor-car；Dead bolt 3, Relative position for location with secured adjusted arm 2 with principal arm 1.

The hole 111, altitude mixture control location of vertical arm 11, carries out altitude mixture control and location for regulating arm 2；Dead bolt 3 is worn Overregulate the dead bolt hole 221 on arm 2 bayonet socket 21, insert in hole 111, location, regulating arm 2 and the vertical arm 11 of being connected for tune Joint arm 2 provides the load support power of vertical direction.

Embodiment 2

Lock bent axle 12 front end 125 in principal arm 1 horizontal arm inner chamber is connected with lock core 13 by bent axle connecting shaft 121, is locked The rotation of core 13 drives.Both sides separate type main dead bolt left part 123, separate type main dead bolt right part 124 are at the lock bent axle of lock bent axle 12 Rear end 126 becomes vertical radially interting to be connected with lock bent axle 12, and locking tooth bar 122 passes through tooth bar connecting rod 127 with lock bent axle 12 at lock Crankshaft front end 125 position realizes hinge type and connects.When principal arm lock core 13 carries out axial rotation motion, by bent axle connecting shaft 121 drive lock bent axle 12 to rotate, so that lock crankshaft rear end 126 drives the main dead bolt of both sides separate type 123,124 to do axle in opposite directions To reciprocating motion.Maximum and the minima of the main dead bolt of both sides separate type 123,124 displacement can determine principal arm and automobile chassis The fast connection inserting square opening and disconnection.Lock crankshaft front end 125 rotates and drives tooth bar connecting rod 127, so that locking tooth bar 122 is at tooth bar The lock crankshaft front end 125 following lock bent axle 12 in lumen pore 14 does the vertical direction synchronized and reciprocatingly slides, locking tooth bar 122 displacement Maximum and minima can determine that tooth bar tooth top 1222 or tooth bar tooth root 1221 are positioned in hole 111, location, thus determine Locking tooth bar 122 is to the locking of dead bolt 3 and opens spacing state, and further, determining regulating arm 2 could be with from master Take out in arm vertical arm 11.Fig. 6, Fig. 7 respectively illustrate the Working pasition of the locking of above-mentioned lock assembly, opening, in figure Arrow represent the direction of the motion of each parts during unlatching.

Embodiment 3

Being under lock-out state at principal arm lock core 13, each component locations is as shown in Fig. 6, Fig. 2: the main dead bolt of separate type 123,124 For the state of stretching out, insert square opening with automobile soon and realize being connected.Lock crankshaft front end 125 is now placed in locking bent axle 12 6 o'clock of end face position, Locking tooth bar 122 is in the least significant end of stroke, and tooth bar tooth top 1222 enters in hole 111, location, just with the inserting of dead bolt 3 Pin locking notch 311 engages, and forms physical intersection with dead bolt pin rod 31, and now dead bolt 3 can not be extracted out, further Ground, regulating arm 2 is irremovable or takes out.

Rotating clockwise lock core key 180 degree, the principal arm lock bent axle 12 driven by lock core 13 drives the main lock of both sides separate type Tongue left part 123, separate type main dead bolt right part 124, retracting in the geometric profile of principal arm 1, now, principal arm 1 is in unlatching shape State, can insert soon from automobile chassis square opening and take out.Meanwhile, lock crankshaft front end 125 forwards 12 o'clock position, band carry-over bar connecting rod to 127 rise, and tooth bar connecting rod 127 pulls locking tooth bar 122 to rise to stroke extreme higher position, and tooth bar tooth top 1222 exits hole, location 111, tooth bar tooth root 1221 aligns with hole 111, location, forms complete circular port passage, and tooth bar tooth top 1222 lacks with latch locking Mouth 311 engagement disappears, and dead bolt 3 locking condition is disappeared by locking tooth bar 122, now extraction dead bolt 3, then regulating arm 2 Can slide along the guide chute 112 of principal arm upright arm 11 and position sizing altitude mixture control or take out replacing.

Claims

1. an antitheft tow arm, including L-shaped principal arm, regulating arm, dead bolt, it is characterised in that: described regulating arm and principal arm Vertical arm slidably, location couple, principal arm is provided with two-stage holdback device, is i.e. provided with in the horizontal arm of principal arm and is driven by lock core Dynamic main dead bolt, main dead bolt is positioned at horizontal arm rear end and inserts square opening position and lock soon with motor-vehicle chassis, another level locking tooth bar position In vertical arm, together with dead bolt lock adjustment arm position and it is from the removal of vertical arm.

The antitheft tow arm of one the most according to claim 1, it is characterised in that: the described horizontal arm central axial setting of arm body Have lockhole chamber, arm body both sides to be provided with dead bolt hole, lockhole chamber is provided with lock core, bent axle connecting shaft, lock bent axle, tooth bar connecting rod, The main dead bolt of left and right separate type, lock core, lock bent axle become axial rotation to connect by bent axle connecting shaft, main dead bolt by lock crankshaft rear end Radially being rotationally connected symmetry through formula with lock bent axle, locking tooth bar is by being arranged at tooth bar connecting rod and the lock crankshaft front end of upper end Hinge type is become to connect.

The antitheft tow arm of one the most according to claim 1, it is characterised in that: vertical direction in the vertical arm of described principal arm Be provided with accommodate locking tooth bar tooth bar lumen pore, locking tooth bar can in tooth bar lumen pore vertical sliding motion, also include vertical arm level Direction is provided with one group of through altitude location hole, tooth bar lumen pore and hole, location spatial vertical relation each other, and in level with vertical Straight projecting direction has geometric projection face to partly overlap to intersect and forming part connects, make the locking teeth being positioned in tooth bar lumen pore with it Bar can forming part physical intersection with the dead bolt pin rod being positioned in hole, location.

The antitheft tow arm of one the most according to claim 1, it is characterised in that: set in the middle part of two pin rods of described dead bolt It is equipped with the latch locking breach mated with described locking tooth bar tooth top.

The antitheft tow arm of one the most according to claim 1, it is characterised in that: the vertical arm both sides of described principal arm are provided with Limit the guide chute of regulating arm glide direction.

6. according to antitheft tow arm a kind of described in any one of claim 1 to 5, it is characterised in that: described regulating arm has along vertically The bayonet socket that arm slides, bayonet socket is encircling type hatch frame, and bayonet socket both sides are provided with for location and two groups of dead bolts of locking Hole, regulating arm is coupled with the vertical arm of L-shaped principal arm by bayonet socket, and by dead bolt through dead bolt hole and L-shaped principal arm Vertical arm fix.