CN215755906U - Lifting appliance rotary locking push rod - Google Patents

Abstract

The utility model relates to a hoist twistlock push rod relates to the field of hoist spare part technique, and it includes unit head, dead lever and flexible head, and the unit head sets up in the one end of dead lever, and the inserting groove has been seted up to the one end terminal surface of keeping away from the unit head on the dead lever, and flexible head pegs graft in the inserting groove, and first screw hole has been seted up to the lateral wall of inserting groove, and first screw hole female connection has the fixing bolt who is used for supporting tight flexible head. This application has the effect that improves the swing clearance big scheduling problem probably appears in the spin lock push rod.

Description

Lifting appliance rotary locking push rod

Technical Field

The application relates to the field of lifting appliance part technology, in particular to a lifting appliance twist lock push rod.

Background

In the handling process of the container at the wharf, a gantry crane is often required to be used, a lifting appliance for lifting the container exists on the gantry crane, a hole for fixing is formed in the container, and after a swing arm bolt of a twist lock in the lifting appliance is inserted into the container, the swing arm bolt of the twist lock is rotated to fix the container on the lifting appliance, so that the container is carried by the lifting appliance.

In the related art, in order to realize the rotation of the swing arm bolt of the spin lock, a spin lock push rod is usually connected with the swing arm bolt of the spin lock, as shown in fig. 1, the spin lock push rod comprises a connector 16, a moving rod 17 and a pushing head 18, the connector 16 is welded at one end of the moving rod 17, the pushing head 18 is in threaded connection with the other end of the moving rod 17, the connector 16 is used for being connected with an oil cylinder to realize the integral movement of the push rod, and the pushing head 18 is used for being connected with the swing arm bolt of the spin lock to realize the rotation of the swing arm bolt of the spin lock.

In view of the above related technologies, the inventor thinks that the pushing head 18 is in threaded connection with the moving rod 17, and after the twist-lock push rod is used for a long time, the threaded connection is worn seriously, and if the twist-lock push rod is not handled in time, the twist-lock push rod may have a large swing gap, and the like, so that the faults of box clamping, box hooking, improper unlocking and the like are caused, and potential safety hazards exist.

SUMMERY OF THE UTILITY MODEL

In order to improve the big scheduling problem of swing clearance probably appear in the twist lock push rod, this application provides a hoist twist lock push rod.

The application provides a hoist twistlock push rod adopts following technical scheme:

the utility model provides a hoist twistlock push rod, includes unit head, dead lever and flexible head, the unit head sets up in the one end of dead lever, the inserting groove has been seted up to the one end terminal surface of keeping away from the unit head on the dead lever, flexible head is pegged graft in the inserting groove, first screw hole has been seted up to the lateral wall of inserting groove, first screw hole female connection has the fixing bolt who is used for supporting tight flexible head.

Through adopting above-mentioned technical scheme, in the installation of spin lock push rod, be connected the unit head with the hydro-cylinder piston rod, make the flexible head slide in the spliced eye again with the position of adaptation spin lock swing arm bolt, after flexible head rigidity, it makes fixing bolt in the continuous adaptation of first screw hole to rotate fixing bolt, thereby make fixing bolt's tip can support tightly flexible head surface, in order to realize the preliminary fixed of flexible head in the spliced groove, take off the spin lock push rod follow device of good flexible head of fixing again, weld in order to realize the fixed of flexible head on the dead lever to flexible head, the in-process relative dead lever difficult wearing and tearing of flexible head using this moment, thereby reduced the problem that swing clearance is big probably to appear in the spin lock push rod.

Optionally, a notch for inserting the piston rod of the oil supply cylinder is formed in one end, far away from the fixed rod, of the power head, and a plurality of second threaded holes are formed in the side wall of the notch.

By adopting the technical scheme, the opening of the gap enables the piston rod of the oil cylinder and the power head to be preliminarily fixed during installation, thereby facilitating subsequent fixed installation; the piston rod of the oil cylinder can be connected with the power head due to the arrangement of the second threaded hole, so that the piston rod of the oil cylinder and the power head are fixed.

Optionally, a first thread groove for fixing is formed on the power head.

Through adopting above-mentioned technical scheme, seting up of first thread groove makes the power head can be connected with other parts to can realize the whole fixed in the device of spin lock push rod.

Optionally, a second thread groove is formed in one end, close to the fixing rod, of the power head, and a connecting block in threaded connection with the second thread groove is arranged on the fixing rod.

Through adopting above-mentioned technical scheme, when the dead lever is connected with the unit head, make connecting block and second thread groove threaded connection can realize the fixed between dead lever and the unit head.

Optionally, the telescopic joint comprises a rotating part and an inserting part, the inserting part is inserted into the inserting groove, and a step surface capable of abutting against the end part of the fixed rod is arranged at the joint of the inserting part and the rotating part.

By adopting the technical scheme, in the process that the insertion part is inserted into the insertion groove, the step surface can be abutted against the end part of the fixed rod, so that the part of the telescopic head which is allowed to be inserted into the insertion groove is determined, and the rotating part can be always in a normal operation state after the telescopic head is connected with the fixed rod.

Optionally, the rotating part is provided with a mounting groove for mounting the bearing.

Through adopting above-mentioned technical scheme, the offering of mounting groove is used for the installation of bearing, and the frictional force that receives between the two reduces when making rotation portion and the relative rotation of twist lock swing arm bolt, is convenient for take place to rotate the condition.

Optionally, the opening of the insertion groove gradually increases towards a direction away from the bottom surface of the insertion groove.

Through adopting above-mentioned technical scheme, the opening progressively increases and makes in inserting the inserting groove that grafting portion can be comparatively convenient to the staff installs flexible head.

Optionally, the side wall of the insertion part is provided with a positioning block, and the side wall of the insertion groove is provided with a positioning groove for sliding the positioning block along the axial direction.

Through adopting above-mentioned technical scheme, the lateral wall of constant head tank is spacing to locating piece width direction, makes the locating piece peripheral spacing in the inserting groove to it takes place to reduce the circumstances that the flexible head rotated on the dead lever, so that realize the preliminary location of flexible head on the dead lever, thereby is convenient for follow-up to weld flexible head.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the telescopic head and the fixed rod can be welded and fixed after the position of the telescopic head and the fixed rod is preliminarily adjusted, so that the telescopic head and the fixed rod can be connected with other parts while the abrasion between the telescopic head and the fixed rod can be reduced, and the problems of swinging clearance and the like of the rotary locking push rod are reduced;

2. the existence of the stepped surface can prevent the telescopic head from being excessively inserted when being connected with the fixed rod so as to ensure that the telescopic head can be normally used when being connected with the bolt of the spin-lock swing arm.

Drawings

FIG. 1 is a schematic structural diagram of a rotary locking push rod of a lifting appliance in the related art;

fig. 2 is an exploded view of a spreader twistlock push rod according to embodiment 1 of the present application;

fig. 3 is a schematic structural view of a telescopic head of embodiment 1 of the present application;

fig. 4 is a schematic structural diagram of a spreader twist lock push rod according to embodiment 2 of the present application;

fig. 5 is an enlarged view of a portion a in fig. 4.

Description of reference numerals: 1. a power head; 2. fixing the rod; 3. a telescopic head; 301. a rotating part; 302. a plug-in part; 4. inserting grooves; 5. a first threaded hole; 6. fixing the bolt; 7. a notch; 8. a second threaded hole; 9. a first thread groove; 10. a second thread groove; 11. connecting blocks; 12. a step surface; 13. mounting grooves; 14. positioning blocks; 15. positioning a groove; 16. a connector; 17. a travel bar; 18. the head is pushed.

Detailed Description

The present application is described in further detail below with reference to figures 2-5.

Example 1

The embodiment of the application discloses hoist twistlock push rod. Referring to fig. 2, the lifting appliance spin-lock push rod comprises a power head 1, a fixing rod 2 and a telescopic head 3, wherein the fixing rod 2 is in a cuboid shape, the power head 1 and the telescopic head 3 are respectively arranged at two ends of the fixing rod 2 in the length direction, the power head 1 is used for being connected with a cylinder piston rod, and the telescopic head 3 is used for being connected with a spin-lock swing arm bolt. The welding of the one end that is close to unit head 1 on dead lever 2 has connecting block 11, connecting block 11's shape is cylinder and connecting block 11's axis and dead lever 2 length direction's central line for same straight line, connecting block 11's surface has the external screw thread, the terminal surface that is close to dead lever 2 on unit head 1 offers the second thread groove 10 that supplies connecting block 11 threaded connection, when connecting block 11 and 10 threaded connection of second thread groove, realize the primary fixation between dead lever 2 and the unit head 1, this moment in order to reduce the condition that the twistlock push rod led to the fact wearing and tearing between connecting block 11 and the second thread groove 10 in the use, weld primary fixed connecting block 11 and unit head 1, in order to realize the complete fixation between the two.

Keep away from the one end of dead lever 2 and seted up breach 7 on unit head 1, breach 7 runs through the both sides of 1 width direction of unit head, a plurality of second screw holes 8 have been seted up on the lateral wall of breach 7, second screw hole 8 runs through the upper surface of unit head 1 and the upper surface of the axis perpendicular to unit head 1 of second screw hole 8, explain with two second screw holes 8 in this embodiment, when unit head 1 will be connected with the piston rod of hydro-cylinder, insert the hydro-cylinder piston rod in breach 7, breach 7 lateral wall is preliminary fixed a position the hydro-cylinder piston rod this moment, pass second screw hole 8 and hydro-cylinder piston rod threaded connection with the bolt, can realize fixing between hydro-cylinder piston rod and the unit head 1. A plurality of first thread grooves 9 are formed in the upper surface of the power head 1, the axis of each first thread groove 9 is perpendicular to the upper surface of the power head 1, two first thread grooves 9 are used for explaining the embodiment, the two first thread grooves 9 are symmetrically arranged in the width direction of the power head 1, when the twist lock push rod needs to be installed and fixed, the first thread grooves 9 are aligned with other components, when a bolt penetrates through other components and is in threaded connection with the first thread grooves 9, the power head 1 and the other components are fixed, and therefore the twist lock push rod is fixed.

Referring to fig. 2 and 3, the telescopic joint 3 includes a rotation portion 301 and an insertion portion 302, the insertion portion 302 is a rectangular parallelepiped, the rotation portion 301 is formed by a cylinder and a rectangular parallelepiped, the rotation portion 301 and the insertion portion 302 are formed integrally, an end surface of a rectangular body on the rotation portion 301 is connected to the insertion portion 302, and an end surface of the rotation portion 301 connected to the insertion portion 302 is larger than an end surface of the insertion portion 302, so that a step surface 12 is formed at a connection position of the rotation portion 301 and the insertion portion 302. Offer the mounting groove 13 that supplies the bearing installation on the cylinder of rotation portion 301, when the spin lock push rod with spin lock swing arm bolt connection, spin lock swing arm bolt insert in mounting groove 13 with the bearing butt, can be comparatively smooth when making the relative spin lock swing arm bolt of spin lock push rod rotate.

The one end that is close to the telescopic joint 3 on dead lever 2 is seted up and is supplied inserting groove 4 that grafting portion 302 pegged graft, and inserting groove 4's radial cross sectional shape size is the same with inserting portion 302's longitudinal section shape size, and when inserting portion 302 inserted in inserting groove 4, inserting portion 302's lateral wall and inserting groove 4's inside wall butt to reduce the condition emergence of inserting portion 302 at inserting groove 4 internal rotation. Meanwhile, in the process of plugging the plugging portion 302, the stepped surface 12 may abut against the end of the fixing rod 2, and when the stepped surface 12 abuts against the end of the fixing rod 2, the telescopic head 3 cannot be inserted into the plugging slot 4, so that the rotating portion 301 located outside can be always connected with the swing arm latch of the twist lock and can rotate relative to the swing arm latch of the twist lock. In order to enable the insertion part 302 to be conveniently inserted into the insertion groove 4, the opening on the insertion groove 4 in the direction away from the bottom surface of the insertion groove 4 is gradually enlarged, and when the insertion part 302 is installed, the larger opening enables the insertion part 302 to be conveniently inserted into the insertion groove 4.

First screw hole 5 has been seted up at the lateral wall of inserting groove 4, and the axis perpendicular to of first screw hole 5 has seted up the lateral wall of first screw hole 5 in inserting groove 4, and threaded connection has fixing bolt 6 on first screw hole 5, and the length of fixing bolt 6 screw thread section is greater than the length of first screw hole 5. In the installation of twistlock push rod, make grafting portion 302 insert in inserting groove 4 and adjust grafting portion 302 and insert the length in inserting groove 4 in order to adjust the holistic position of flexible first 3, make flexible first 3 can with twistlock swing arm bolt looks adaptation, after flexible first 3 position is confirmed, it makes fixing bolt 6's tip support tight grafting portion 302 surface to rotate fixing bolt, frictional force between grafting portion 302 and the fixing bolt 6 is great this moment, grafting portion 302 is difficult for removing in inserting groove 4, thereby make flexible first 3 position preliminary fixed, weld flexible first 3 on dead lever 2 again and can realize fixing between flexible first 3 and dead lever 2, with reducing twistlock push rod for a long time and lead to both junctions to appear the possibility of wearing and tearing.

The implementation principle of the embodiment 1 of the application is as follows: in the installation process of the twist lock push rod, the connecting block 11 is in threaded connection with the power head 1 to realize the primary fixation between the power head 1 and the fixed rod 2, and after the position adjustment of the power head 1 and the fixed rod is completed, the power head 1 and the fixed rod are welded to realize the complete fixation; install flexible head 3 again, make flexible head 3 can with spin lock swing arm pin joint, rotate fixing bolt 6 this moment and make flexible head 3 supported tightly to the condition that reduces the relative dead lever 2 of flexible head 3 and remove takes place, take off the spin lock push rod that the adjustment was accomplished from the assembly department, weld flexible head 3 again in order to realize the fixed of flexible head 3 on dead lever 2, make the difficult relative wearing and tearing of flexible head 3 and dead lever 2 junction under the condition of long-time use of spin lock push rod, thereby make the difficult big scheduling problem of swing clearance that appears of spin lock push rod.

Example 2

The difference between the embodiment 2 and the embodiment 1 is that: referring to fig. 4 and 5, the fixing rod 2 is cylindrical, the radial section of the insertion groove 4 is circular, the insertion part 302 is matched with the insertion groove 4, and the fixing rod 2 with the circular appearance enables the circumferential stress of the fixing rod 2 to be the same, so that the fixing rod 2 is not easy to damage after being used for a long time. In order to reduce grafting portion 302 and take place the pivoted condition in inserting groove 4, there are a plurality of locating piece 14 at the skin weld of grafting portion 302, locating piece 14 sets up along the length direction of grafting portion 302, this embodiment explains with two locating pieces 14, two locating pieces 14 set up with the axis symmetry of grafting portion 302, set up the constant head tank 15 that supplies locating piece 14 to slide along the 4 axial of inserting groove at the lateral wall of inserting groove 4, constant head tank 15 and locating piece 14 looks adaptation, make the lateral wall of locating piece 14 and the inside wall butt of constant head tank 15, thereby make locating piece 14 difficult at the internal circumferential direction of inserting groove 4 remove, and then make the difficult internal rotation of grafting portion 302 in inserting groove 4.

The implementation principle of embodiment 2 of the present application is as follows: in the installation of grafting portion 302, locating piece 14 makes grafting portion 302 difficult rotation in inserting groove 4 with constant head tank 15 looks adaptation, and the circular shape dead lever 2 of outward appearance makes 2 circumference atress of dead lever the same, makes 2 permanent difficult emergence damages of dead lever.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (8)

1. The utility model provides a hoist twistlock push rod which characterized in that: including unit head (1), dead lever (2) and flexible head (3), unit head (1) sets up in the one end of dead lever (2), inserting groove (4) have been seted up to the one end terminal surface of keeping away from unit head (1) on dead lever (2), flexible head (3) are pegged graft in inserting groove (4), first screw hole (5) have been seted up to the lateral wall of inserting groove (4), first screw hole (5) female connection has fixing bolt (6) that are used for supporting flexible head (3) tightly.

2. The spreader twistlock pusher of claim 1, wherein: one end of the power head (1) far away from the fixing rod (2) is provided with a notch (7) for inserting a piston rod of the oil supply cylinder, and the side wall of the notch (7) is provided with a plurality of second threaded holes (8).

3. The spreader twistlock pusher of claim 1, wherein: a first thread groove (9) for fixing is formed in the power head (1).

4. The spreader twistlock pusher of claim 1, wherein: a second thread groove (10) is formed in one end, close to the fixing rod (2), of the power head (1), and a connecting block (11) in threaded connection with the second thread groove (10) is arranged on the fixing rod (2).

5. The spreader twistlock pusher of claim 1, wherein: the telescopic head (3) comprises a rotating part (301) and an inserting part (302), the inserting part (302) is inserted into the inserting groove (4), and a step surface (12) capable of being abutted to the end part of the fixing rod (2) is arranged at the joint of the inserting part (302) and the rotating part (301).

6. The spreader twistlock pusher of claim 5, wherein: the rotating part (301) is provided with a mounting groove (13) for mounting a bearing.

7. The spreader twistlock pusher of claim 1, wherein: the opening of the insertion groove (4) is gradually increased towards the direction far away from the bottom surface of the insertion groove (4).

8. The spreader twistlock pusher of claim 5, wherein: the side wall of the insertion part (302) is provided with a positioning block (14), and the side wall of the insertion groove (4) is provided with a positioning groove (15) for the positioning block (14) to slide along the axial direction.

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