CN214456193U

CN214456193U - Lifting hook for lifting equipment

Info

Publication number: CN214456193U
Application number: CN202023346502.XU
Authority: CN
Inventors: 王风品
Original assignee: Jiangsu Guohong Power Transmission And Transformation Engineering Co ltd
Current assignee: Jiangsu Guohong Power Transmission And Transformation Engineering Co ltd
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2021-10-22
Anticipated expiration: 2030-12-31

Abstract

The utility model belongs to the technical field of the hoisting equipment technique and specifically relates to a lifting hook for handling equipment is related to, and it includes the lifting hook body, is connected with the connecting box on the lifting hook body, has seted up the connecting hole on the connecting box, is equipped with the limiting plate in the connecting box, limiting plate and this body coupling of lifting hook, lifting hook body and connecting hole sliding fit, lifting hook body overcoat are equipped with buffer spring, buffer spring's one end and limiting plate connection, the other end and connecting box contact. The present application has the effect of reducing the likelihood of the hook being damaged.

Description

Lifting hook for lifting equipment

Technical Field

The application relates to the technical field of hoisting equipment, in particular to a lifting hook for hoisting equipment.

Background

The power transmission and transformation project is responsible for the construction project of power transmission lines with various voltage grades, the installation project of a substation, the laying project of cables and optical cables and the construction project of various microwave towers. The power transmission and transformation is separated, namely, the power is transmitted to each household by a stringing mode, various power transformation engineering tools need to be lifted and moved by lifting equipment in power transformation engineering construction, and the engineering tools need to be lifted by a lifting hook in lifting.

Chinese patent No. CN211141386U discloses a lifting and transporting device for power transmission and transformation engineering construction, which comprises a fixing plate, a moving wheel, a support rod, a support plate, a multiple fixed lifting hook structure, a rotary lifting support column structure, a folding sealed protective cable winding frame structure, a connecting rod, a support rod, a motor, a control switch, a protective rod, a connecting rod, a fastening rod, a pulley, a connecting wheel, a winding wheel, a lifting rope, a mounting rod and a pull ring, wherein the moving wheel is respectively fixed at four corners of the bottom of the fixing plate; the stay bars are respectively bolted on the left side and the right side of the upper surface of the fixed plate; the support plate is connected to the upper part of the support rod through bolts.

With respect to the related art among the above, the inventors consider that the following drawbacks exist: when the lifting hook is used, the lifting hook is in rigid connection, and huge impulsive force is generated at the moment of lifting, so that the lifting hook directly receives the impulsive force in the vertical direction, and the lifting hook is easily damaged in the past.

SUMMERY OF THE UTILITY MODEL

In order to reduce the possibility that the lifting hook is damaged, the application provides a lifting hook for handling equipment.

The application provides a lifting hook for handling equipment adopts following technical scheme:

the utility model provides a lifting hook for handling equipment, includes the lifting hook body, be connected with the connecting box on the lifting hook body, the connecting hole has been seted up on the connecting box, be equipped with the limiting plate in the connecting box, limiting plate and this body coupling of lifting hook, lifting hook body and connecting hole sliding fit, lifting hook body overcoat is equipped with buffer spring, buffer spring's one end and limiting plate connection, the other end contacts with the inside wall of connecting box.

Through adopting above-mentioned technical scheme, during the use, when the lifting hook body hoisted the heavy object, the gravity of heavy object self made the lifting hook body move down, and then driven the limiting plate to the direction removal that is close to the connecting hole, buffer spring was compressed, cushions the lifting hook body, and then absorbed the part and hoisted the huge impulsive force that produces in the twinkling of an eye, has reduced the impulsive force of the vertical direction that the lifting hook directly received, to sum up, this application has reduced the impaired possibility of lifting hook.

Optionally, a damper is connected to the limiting plate, one end of the damper is connected to the limiting plate, the other end of the damper is connected to the hook body, the buffer spring sleeve is arranged outside the damper, and the damper is in sliding fit with the connecting hole.

Through adopting above-mentioned technical scheme, during the use, after buffer spring was compressed extreme position, the attenuator can provide the resistance, plays the effect of buffering to the lifting hook body, and then reduces the impulsive force of the vertical direction that the lifting hook directly received, has played the effect of protection lifting hook, and the attenuator can reduce buffer spring at the crooked possibility of compression in-process simultaneously, has played the effect of protection buffer spring.

Optionally, the lower surface of limiting plate is connected with the telescopic link, and the lifting hook body is located two between the telescopic link, the telescopic link includes first telescopic link and second telescopic link, the one end and the limiting plate of first telescopic link are connected, and the accommodation hole has been seted up to the other end, the one end of second telescopic link insert in the accommodation hole and with accommodation hole sliding fit, the one end and the connecting box contact of limiting plate are kept away from to the second telescopic link.

Through adopting above-mentioned technical scheme, during the use, the limiting plate can be supported jointly with buffer spring to the telescopic link, when the limiting plate removes to the direction that is close to the connecting hole, drive the telescopic link and move down, the second telescopic link receives blockking of connecting box, the second telescopic link removes to the direction that is close to first telescopic link, first telescopic link and second telescopic link sliding fit, frictional force between first telescopic link and the second telescopic link, the effect of buffering has been played, the effect of buffering is played to the lifting hook body.

Optionally, an expansion spring is connected to the first telescopic rod and located in the accommodating hole, one end of the expansion spring is connected with the bottom of the accommodating hole, and the other end of the expansion spring is connected with the second telescopic rod.

Through adopting above-mentioned technical scheme, during the use, the sliding fit of first telescopic link and second telescopic link makes the expanding spring compression, and expanding spring plays the effect of buffering, and then cushions the lifting hook body.

Optionally, the outer side wall of the damper is attached to the side wall of the buffer spring.

Through adopting above-mentioned technical scheme, during the use, buffer spring is when compressing, and the lateral wall of attenuator and buffer spring's lateral wall contact has further reduced buffer spring crooked possibility in compression process.

Optionally, a ball groove is formed in one end, away from the limiting plate, of the second telescopic rod, a ball is connected to the second telescopic rod in a rotating mode, the ball is located in the ball groove and is in running fit with the ball groove, and the ball is in contact with the connecting box.

Through adopting above-mentioned technical scheme, during the use, the operator rotates the lifting hook body, and the lifting hook body drives the limiting plate and rotates, and then drives the telescopic link and rotate, and then drives the ball and rotate, and then has reduced the frictional force between telescopic link and the connecting box.

Optionally, a wear-resistant layer is bonded on the inner side wall of the connecting hole, and the wear-resistant layer is in contact with the damper.

Through adopting above-mentioned technical scheme, during the use, the wearing layer can reduce the direct contact of attenuator and connecting box, and then has reduced the possibility that the attenuator was worn and torn, has played the effect of protection attenuator.

Optionally, an access hole is formed in the side wall of the connecting box, a shielding plate is connected to the access hole, and the shielding plate shields the access hole.

Through adopting above-mentioned technical scheme, during the use, the operator can open the access hole and observe the structure in the connecting box, can in time maintain or change if the problem appears to guarantee the normal use of lifting hook.

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

1. according to the lifting hook, the connecting box, the connecting plate and the buffer spring are arranged, when an operator uses the lifting hook to lift heavy objects, the heavy objects enable the limiting plate to move downwards, the limiting plate is further driven to move towards the direction close to the connecting hole, the limiting plate enables the buffer spring to be compressed under stress, the buffer spring plays a buffering role, the impact force in the vertical direction directly received by the lifting hook is reduced, and the possibility that the lifting hook is damaged can be reduced;

2. this application is through setting up the attenuator, during the use, after buffer spring is compressed extreme position, the attenuator received the pulling force of lifting hook, and the attenuator plays the effect of buffering to the lifting hook, and then has reduced the impulsive force of the vertical direction that the lifting hook directly received, has consequently reduced the damaged possibility of lifting hook.

Drawings

Fig. 1 is a schematic structural diagram of a lifting hook for a lifting device in an embodiment.

Fig. 2 is a sectional view of a buffer spring structure used in an embodiment.

Figure 3 is an exploded view of an access opening used in the embodied examples.

Fig. 4 is a sectional view for embodying the internal structure of the telescopic bar in the embodiment.

Description of reference numerals: 1. a hook body; 2. a connecting box; 3. connecting holes; 4. a buffer spring; 5. a damper; 6. a telescopic rod; 61. a first telescopic rod; 62. a second telescopic rod; 9. a limiting plate; 10. an accommodation hole; 11. a tension spring; 12. a ball groove; 13. a ball bearing; 14. a wear layer; 15. an access hole; 16. a shielding plate; 17. and (6) lifting the lifting rope.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses a lifting hook for lifting equipment. Referring to fig. 1, the lifting hook for the lifting equipment comprises a lifting hook body 1, a connecting box 2 is connected to the lifting hook body 1, and the upper side wall of the connecting box 2 is connected with a lifting rope 17.

Referring to fig. 1 and 2, connecting hole 3 has been seted up to the bottom of connecting box 2, and it has wearing layer 14 to bond on the lateral wall of connecting hole 3, and wearing layer 14 is the felt layer, and the welding has attenuator 5 on the lifting hook body 1, and the one end that lifting hook body 1 was kept away from to attenuator 5 runs through connecting hole 3 and is connected with limiting plate 9, attenuator 5 and connecting hole 3 sliding fit, and attenuator 5's lateral wall and wearing layer 14 contact. The wear-resistant layer 14 reduces the direct contact between the damper 5 and the side wall of the connecting hole 3, thereby reducing the possibility of abrasion of the damper 5 and playing a role in protecting the damper 5.

Referring to fig. 2 and 3, buffer spring 4 is connected in the connecting box 2, buffer spring 4 cover is established outside attenuator 5, buffer spring 4's one end and limiting plate 9 are connected, the bottom contact of the other end and connecting box 2, buffer spring 4's internal diameter is greater than the aperture of connecting hole 3, attenuator 5's lateral wall and buffer spring 4 laminating, at the in-process that buffer spring 4 removed, attenuator 5 has reduced buffer spring 4 and has taken place crooked possibility, and then has played the effect of protection buffer spring 4.

Referring to fig. 2 and 4, the both ends of limiting plate 9 are connected with telescopic link 6, buffer spring 4 is located between two telescopic links 6, telescopic link 6 includes first telescopic link 61 and second telescopic link 62, first telescopic link 61 and limiting plate 9's bottom surface welding, limiting plate 9's one end has been kept away from to first telescopic link 61 has seted up accommodation hole 10, accommodation hole 10 is the through-hole, be connected with expanding spring 11 on the first telescopic link 61, expanding spring 11's one end bonds with accommodation hole 10's hole bottom, the other end bonds with second telescopic link 62, second telescopic link 62 bonds and has the one end of expanding spring 11 insert in accommodation hole 10 and with accommodation hole 10 sliding fit.

Referring to fig. 2 and 4, a ball groove 12 is formed in one end, away from the first telescopic rod 61, of the second telescopic rod 62, a ball 13 is connected to the second telescopic rod 62 in a rotating mode, the ball 13 is located in the ball groove 12 and is in running fit with the ball groove 12, and the ball 13 is in contact with the bottom of the connecting box 2.

Referring to fig. 3, the access hole 15 has been seted up on a vertical lateral wall of connecting box 2, has shielding plate 16 through bolted connection on the connecting box 2, and shielding plate 16 shelters from access hole 15, and after 2 inside problems of connecting box, the operator opens shielding plate 16, observes the structure in the connecting box 2 and maintains to ensure the normal use of lifting hook body 1.

The implementation principle of the lifting hook for the lifting equipment in the embodiment of the application is as follows: during the use, the operator will need the heavy object of handling to be connected with lifting hook body 1, restart handling equipment pulling lifting rope 17, lifting rope 17 drives connecting box 2 rebound, the gravity of the heavy object on the lifting hook body 1 makes attenuator 5 lapse, and then drive limiting plate 9 to the direction removal of being close to connecting hole 3, buffer spring 4 atress compression, play the effect of buffering to lifting hook body 1, consequently, can reduce to lift by crane and produce huge impulsive force in the twinkling of an eye, lifting hook body 1 has directly received the impulsive force of vertical direction, and then reduced lifting hook body 1 impaired possibility.

During the use, when limiting plate 9 removed to the direction that is close to connecting hole 3, the telescopic link 6 atress compression at limiting plate 9 both ends, and expanding spring 11 atress compression, telescopic link 6 can play the effect of buffering to lifting hook body 1. In order to facilitate the lifting of heavy objects by an operator, the operator can rotate the lifting hook body 1, and when the operator rotates the lifting hook body 1, the ball 13 is in running fit with the ball groove 12, so that the friction force between the second telescopic rod 62 and the connecting box 2 is reduced.

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

1. The utility model provides a lifting hook for handling equipment, includes lifting hook body (1), its characterized in that: be connected with connecting box (2) on lifting hook body (1), connecting hole (3) have been seted up on connecting box (2), be equipped with limiting plate (9) in connecting box (2), limiting plate (9) are connected with lifting hook body (1), lifting hook body (1) and connecting hole (3) sliding fit, lifting hook body (1) overcoat is equipped with buffer spring (4), the one end and the limiting plate (9) of buffer spring (4) are connected, and the other end contacts with the inside wall of connecting box (2).

2. A lifting hook for lifting equipment as claimed in claim 1, wherein: be connected with attenuator (5) on limiting plate (9), the one end and limiting plate (9) of attenuator (5) are connected, and the other end is connected with lifting hook body (1), buffer spring (4) cover is established outside attenuator (5), attenuator (5) and connecting hole (3) sliding fit.

3. A lifting hook for lifting equipment as claimed in claim 1, wherein: the lower surface of limiting plate (9) is connected with telescopic link (6), and lifting hook body (1) is located two between telescopic link (6), telescopic link (6) are including first telescopic link (61) and second telescopic link (62), the one end and the limiting plate (9) of first telescopic link (61) are connected, and receiving hole (10) have been seted up to the other end, the one end of second telescopic link (62) insert in receiving hole (10) and with receiving hole (10) sliding fit, the one end and the connecting box (2) contact of limiting plate (9) are kept away from in second telescopic link (62).

4. A lifting hook for lifting equipment as claimed in claim 3, wherein: the telescopic device is characterized in that a telescopic spring (11) is connected onto the first telescopic rod (61), the telescopic spring (11) is located in the accommodating hole (10), one end of the telescopic spring (11) is connected with the bottom of the accommodating hole (10), and the other end of the telescopic spring is connected with the second telescopic rod (62).

5. A lifting hook for lifting equipment as claimed in claim 2, wherein: the outer side wall of the damper (5) is attached to the side wall of the buffer spring (4).

6. A lifting hook for lifting equipment as claimed in claim 3, wherein: ball groove (12) have been seted up to the one end that limiting plate (9) were kept away from in second telescopic link (62), it is connected with ball (13) to rotate on second telescopic link (62), ball (13) are located ball groove (12) and with ball groove (12) normal running fit, ball (13) and junction box (2) contact.

7. A lifting hook for lifting equipment as claimed in claim 1, wherein: and a wear-resistant layer (14) is bonded on the inner side wall of the connecting hole (3), and the wear-resistant layer (14) is in contact with the damper (5).

8. A lifting hook for lifting equipment as claimed in claim 1, wherein: the side wall of the connecting box (2) is provided with an access hole (15), the access hole (15) is connected with a baffle plate (16), and the baffle plate (16) shields the access hole (15).