CN103434351A

CN103434351A - Spring tow hook

Info

Publication number: CN103434351A
Application number: CN2013103629595A
Authority: CN
Inventors: 张晓荣
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-08-20
Filing date: 2013-08-20
Publication date: 2013-12-11

Abstract

The invention discloses a spring tow hook which comprises a tow hook body (14), a buffering device and a joint (2). The buffering device is composed of a spring rack (3), a spring pressing plate (4), a spring (6) and a spring central spindle (9), wherein the spring pressing plate (4) is movably mounted on the spring rack (3) and can move along the spring rack (3) in the axial direction, the spring (6) is located between the spring rack (3) and the spring pressing plate (4), the spring central spindle (9) is located in the spring (6), one end of the spring central spindle (9) is fixedly connected with the spring pressing plate (4), the other end of the spring central spindle (9) extends out of the spring rack (3) and is connected with the tow hook body (14), and the joint (2) is mounted on the spring rack (3) through a spring rack pin shaft (13). According to the spring tow hook, the reliable spring buffering measurement is used, the buffering spring is used for absorbing impact energy which is then converted to heat energy, and therefore the purpose that impact on mechanical equipment is reduced as much as possible is achieved.

Description

A kind of spring towing hook

Technical field

The present invention relates to a kind of spring towing hook.

Background technology

At present, towboat, trailers etc. all inevitably can use towing hook, according to the difference of industry characteristic and the difference needed, produced panoramic towing hook, but its function but only has one, the traction object moves, and must in moving process, can not break off relations, so the producer and user are making a fuss aspect towing hook intensity and self-locking, so there will be a feast for the eyes towing hook, but spring or reed have been increased for auto-lock function, auto-lock function is powerful, but need to overcome artificially the elastic force of spring or reed when unloading hook, and it is heavy again to pull hawser, operate very inconvenient.

Use in the situation of towing hook, the object that often will pull is certainly all huger or heavy, the main thing that pulls need to apply larger tractive force and acts on and pulled thing, main pull thing with certain speed to being pulled the moment that thing applies tractive force, due to the impact of antagonistic force, pull thing and can be subject to one powerful impulsive force backward, under the effect of impulsive force, the parts of machinery can produce very large dynamic stress, and may cause destroying, and hull or car body also may be endangered.

Summary of the invention

In order to address the above problem, the invention provides a kind of spring towing hook, take the measure of failure-free spring buffer, utilize the energy of recoil spring impact-absorbing, then make it change heat energy into, thereby reach the purpose that as far as possible reduces the suffered impulsive force of mechanical equipment.

The present invention has adopted following technical scheme: a kind of spring towing hook, it comprises towing hook, shock absorber and joint, described shock absorber is comprised of spring frame, spring bearer plate, spring and spring shaft core, described spring bearer plate is movably arranged on spring frame can make axial motion along spring bearer plate, described spring is between spring frame and spring bearer plate, described spring shaft core is positioned at spring, one end of spring shaft core is fixedly connected with spring bearer plate, the other end stretches out outside spring frame and is connected with towing hook, and joint is arranged on spring frame by the spring frame bearing pin.

The elasticity two ends of described spring are respectively equipped with spring perch, be connected with eye plate on described joint, described joint is X conn, the spring frame position of stretching out of described spring shaft core is provided with clamping plate, the centre of described towing hook is movably arranged on clamping plate, the end of towing hook can be along the clamping plate up-and-down movement, be provided with only hook plate bearing pin on clamping plate, carry out to lower limit the end of towing hook the bottom that described only hook plate bearing pin is positioned at the towing hook end, described clamping plate are provided with positioner, and this positioner is positioned at the towing hook end to carry out to upper limit the towing hook end, described positioner is comprised of flashboard and check plate, the lower end of flashboard is hollow shape, check plate is arranged in flashboard lower end hollow, both bottoms are arranged on clamping plate by same flashboard bearing pin, be provided with the arc opening groove on check plate, the lower end of described flashboard and check plate arc opening groove corresponding position are provided with the stop bearing pin, the stop bearing pin can move along the arc opening groove, described check plate and towing hook end joint are provided with position-limited trough, when the stop bearing pin is positioned at arc opening groove towing hook end one side, position-limited trough carries out to upper limit the towing hook end, when the stop bearing pin is positioned at the arc opening groove away from towing hook end one side, the position-limited trough cancellation is spacing to the towing hook end, the upper end of described flashboard is provided with handle, the bottom of described spring frame is provided with rolling wheel support, is provided with roller in rolling wheel support.

The present invention has following beneficial effect: the present invention adopts the spring buffer measure, effectively reduce the impact of mechanical equipment and avoid device damage, X conn and roller structure have been adopted, can pull thing automatically and adjust swimmingly direction with main, between all movable parts, all by bearing pin, connect, and lock with spring cotter, reliable operation, dismantle more convenient, adopt upper and lower inhibiting device well to towing hook, to carry out the spacing towing hook phenomenon that prevents from causing, upper end at flashboard is provided with handle, long-rangely can pull its towing hook.

The accompanying drawing explanation

Fig. 1 is structural representation of the present invention.

The specific embodiment

As shown in Figure 1, the present invention is a kind of spring towing hook, and it comprises towing hook 14, shock absorber and joint 2, is connected with eye plate 1 on joint 2, and described joint 2 is X conn, described shock absorber is by spring frame 3, spring bearer plate 4, spring 6 and spring shaft core 9 form, the bottom of described spring frame 3 is provided with rolling wheel support 7, be provided with roller 8 in rolling wheel support 7, described spring bearer plate 4 is movably arranged on spring frame 3 can make axial motion along spring bearer plate 4, described spring 6 is between spring frame 3 and spring bearer plate 4, the elasticity two ends of described spring 6 are respectively equipped with spring perch 5, described spring shaft core 9 is positioned at spring 6, one end of spring shaft core 9 is fixedly connected with spring bearer plate 4, the other end stretches out outside spring frame 3 and is connected with towing hook 14, joint 2 is arranged on spring frame 3 by spring frame bearing pin 13.

The position that spring shaft core 9 of the present invention stretches out spring frame 3 is provided with clamping plate 10, the centre of described towing hook 14 is movably arranged on clamping plate 10, the end of towing hook 14 can be along clamping plate 10 up-and-down movements, be provided with only hook plate bearing pin 18 on clamping plate 10, carry out to lower limit the end of towing hook 14 bottom that described only hook plate bearing pin 18 is positioned at towing hook 14 ends, described clamping plate 10 are provided with positioner, this positioner is positioned at towing hook 14 ends to carry out to upper limit towing hook 14 ends, described positioner is comprised of flashboard 12 and check plate 11, the upper end of flashboard 12 is provided with handle 15, the lower end of flashboard 12 is hollow shape, check plate 11 is arranged in flashboard 12 lower ends hollow, both bottoms are arranged on clamping plate 10 by same flashboard bearing pin 17, be provided with the arc opening groove on check plate 11, the lower end of described flashboard 12 and check plate 11 arc opening groove corresponding positions are provided with stop bearing pin 16, stop bearing pin 16 can move along the arc opening groove, described check plate 11 is provided with position-limited trough with towing hook 14 end joints, when stop bearing pin 16 is positioned at arc opening groove towing hook 14 end one side, position-limited trough carries out to upper limit towing hook 14 ends, when stop bearing pin 16 is positioned at the arc opening groove away from towing hook 14 end one side, the position-limited trough cancellation is spacing to towing hook 14 ends.

Claims

1. a spring towing hook, it is characterized in that it comprises towing hook (14), shock absorber and joint (2), described shock absorber is by spring frame (3), spring bearer plate (4), spring (6) and spring shaft core (9) form, described spring bearer plate (4) is movably arranged on spring frame (3) can make axial motion along spring bearer plate (4), described spring (6) is positioned between spring frame (3) and spring bearer plate (4), described spring shaft core (9) is positioned at spring (6), one end of spring shaft core (9) is fixedly connected with spring bearer plate (4), the other end stretches out outside spring frame (3) and is connected with towing hook (14), joint (2) is arranged on spring frame (3) by spring frame bearing pin (13).

2. a kind of spring towing hook according to claim 1, is characterized in that the elasticity two ends of described spring (6) are respectively equipped with spring perch (5).

3. a kind of spring towing hook according to claim 1, is characterized in that on described joint (2) being connected with eye plate (1).

4. according to the described a kind of spring towing hook of claim 1 or 3, it is characterized in that described joint (2) is X conn.

5. a kind of spring towing hook according to claim 1, it is characterized in that the position that described spring shaft core (9) stretches out spring frame (3) is provided with clamping plate (10), the centre of described towing hook (14) is movably arranged on clamping plate (10), the end of towing hook (14) can be along clamping plate (10) up-and-down movement, be provided with only hook plate bearing pin (18) on clamping plate (10), carry out to lower limit the end of towing hook (14) bottom that described only hook plate bearing pin (18) is positioned at towing hook (14) end.

6. a kind of spring towing hook according to claim 5, is characterized in that described clamping plate (10) are provided with positioner, and this positioner is positioned at towing hook (14) end to carry out to upper limit towing hook (14) end.

7. a kind of spring towing hook according to claim 6, it is characterized in that described positioner is comprised of flashboard (12) and check plate (11), the lower end of flashboard (12) is hollow shape, check plate (11) is arranged in flashboard (12) lower end hollow, both bottoms are arranged on clamping plate (10) by same flashboard bearing pin (17), be provided with the arc opening groove on check plate (11), the lower end of described flashboard (12) and check plate (11) arc opening groove corresponding position are provided with stop bearing pin (16), stop bearing pin (16) can move along the arc opening groove, described check plate (11) is provided with position-limited trough with towing hook (14) end joint, when stop bearing pin (16) is positioned at arc opening groove towing hook (14) end one side, position-limited trough carries out to upper limit towing hook (14) end, when stop bearing pin (16) is positioned at the arc opening groove away from towing hook (14) end one side, the position-limited trough cancellation is spacing to towing hook (14) end.

8. a kind of spring towing hook according to claim 6, is characterized in that the upper end of described flashboard (12) is provided with handle (15).

9. a kind of spring towing hook according to claim 1, is characterized in that the bottom of described spring frame (3) is provided with rolling wheel support (7), is provided with roller (8) in rolling wheel support (7).