CN205838343U - A kind of self-locking hook - Google Patents

Abstract

This utility model provides a kind of self-locking hook, and including hook body, the lower end of hook body is provided with hangs mouth, and hook body is provided with, near the position hanging mouth, the safety plate that can move up and down.By hanging, in hook body, the safety plate that at mouth, setting can move up and down, during lifting or falling, safety plate energy automatic locking hangs mouth, it is effectively prevented from sucker rod unexpected unhook from hook body and causes the phenomenon of security incident, greatly improve the safety of lifting process, it is ensured that being smoothed out of production.And the design of this self-locking hook is simple and reasonable, have use conveniently, safely, self-locking effect notable, durable in use, the advantage such as practical.

Description

A kind of self-locking hook

Technical field

This utility model relates to lifting appliance accessory field, in particular to a kind of self-locking hook.

Background technology

At present, one of groundwork when the lifting operation of sucker rod is oil well, it is that a risk is big, lifting speed Degree is fast, a kind of special operation pumped.In operation process, proposing from oil well sucker rod one one Come, the most one by one lower in oil well after completion.At present, opening of the usually normal type of sucker rod hook used at each elephant Mouth suspension hook, this kind of suspension hook, during sucker rod lifting or falling, is easily generated the problems such as unhook, causes machine when running into collision Tool or personal injury accident, impact produces.

Utility model content

This utility model provides a kind of self-locking hook, during sucker rod lifting or falling, by arranging on energy The safety plate of lower movement, can prevent sucker rod from surprisingly breaking off relations and cause the phenomenon of security incident, greatly improve the peace of operation process Quan Xing, it is ensured that produce and be smoothed out.

Embodiment of the present utility model is achieved in that

A kind of self-locking hook, including hook body, the lower end of hook body is provided with hangs mouth, and hook body is near hanging mouth Position is provided with the safety plate that can move up and down, and arranges fixing seat and guide post in hook body, and fixing seat is provided with first Passage, one end of guide post is stretched in first passage, and the other end is connected with safety plate, and safety plate is slidably connected with hook body, Being provided with spring base in first passage, spring base is provided with second channel, one end of guide post extend into from first passage In two passages, being arranged with back-moving spring outside guide post, the two ends of back-moving spring are respectively held against spring base and safety plate.

The guide post guarantee insurance sheet sliding trace when sliding relative to hook body is linearly so that safety plate can be accurate Really pin and hang mouth, it is ensured that safety plate does not offsets, farthest avoid sucker rod and come off at hanging mouthful the peace caused Full accident.

By the design structure of back-moving spring, it is avoided that safety plate is stuck and causes its phenomenon that can not move down, effectively Improve the self-locking effect of safety plate.Additionally, under the extruding of back-moving spring, safety plate can prop up hook portion, energy tightly Be effectively prevented from safety plate arbitrarily upper move cause hang the phenomenon that mouth is opened, improve safety plate further and sucker rod be locked in hook Stability in shape portion.

Further, in this utility model preferred embodiment, it is provided with limited post in hook body, safety plate sets Being equipped with bar-shaped trough, limited post stretches in bar-shaped trough.

Limited post stretches in the bar-shaped trough on safety plate so that safety plate can be along limited post place in hook body Straight line slides up and down, by coordinating of the inwall of the outer wall of limited post and bar-shaped trough, it is ensured that safety plate can be the most upper and lower Slide, it is to avoid safety plate dislocation causes sucker rod from hanging the phenomenon come off mouth, strengthens safety when this self-locking hook uses Energy.

Further, in this utility model preferred embodiment, be provided with in hook body for drive safety plate to The handle of upper movement.

User makes to move on safety plate by operation handle, greatly increases convenience and the motility of operation.

Further, in this utility model preferred embodiment, handle includes that the first arm, the first arm turn with hook body Being dynamically connected, the first arm is provided with groove, be provided with expansion link in groove, one end of expansion link is stretched out groove and cuts with scissors with safety plate Connect.

By driving the first arm to rotate, driving expansion link to rotate, expansion link overhangs to groove so that move on safety plate, Open and hang mouth so that be flexible to operation.

Further, in this utility model preferred embodiment, handle also include for drive the first arm to rotate the Two arms, the second arm and the first arm are fixing to be connected and forms V-arrangement.

User directly with the second arm on hands operation handle, makes the second arm be rotated up, and then drives the first arm upwards Rotate, expansion link in a groove is set and overhangs to groove to drive again and move on safety plate, and then open and hang mouth；After loosing one's grip, protect Danger sheet moves down under the active force of back-moving spring automatically, pins and hangs mouth, thoroughly realizes the effect of self-locking, and make easy to operate. Flexibly, laborsaving.

Further, in this utility model preferred embodiment, the upper end of hook body is provided with suspension ring set and connects Post, connects and is provided with wire ring set on the sidewall of post, and wire ring set fixes connection with being connected post, and the outer wall of wire ring set is provided with outer spiral shell Stricture of vagina, the lower end of suspension ring set is provided with the 4th blind hole, and the inwall of the 4th blind hole is provided with the female thread coordinated with external screw thread, suspension ring set Upper end be provided with lacing hole.

Further, in this utility model preferred embodiment, suspension ring put and are provided with pin, suspension ring set and wire ring set Being connected by pin, pin passes sidewall and the sidewall of wire ring set of suspension ring set.

It is possible to prevent suspension ring set to recover, with wire ring, the loose or dislocation phenomenon that transduction causes by the design structure of pin, it is to avoid peace The generation of full accident, improves this self-locking hook security performance in use.

Further, in this utility model preferred embodiment, connect post and be provided with fixing near the position that wire ring overlaps Set, fixed cover connects with being connected male screw, and fixed cover offsets with wire ring set.

It is prevented from connecting post by the design structure of fixed cover to come off from wire ring overlaps, it is to avoid the generation of security incident, Contribute to reinforced wire snare in the stability connected between post and and the weight capacity of this self-locking hook, further improving should Self-locking hook safety in use.

A kind of self-locking hook of this utility model embodiment provides the benefit that: by arranging at mouth hanging of hook body The safety plate that can move up and down, during lifting or falling, safety plate energy automatic locking hangs mouth, is effectively prevented from oil pumping Bar unexpected unhook from hook body causes the phenomenon of security incident, greatly improves the safety of lifting operation, it is ensured that produce Be smoothed out.And the design of this self-locking hook is simple and reasonable, have use conveniently, safely, self-locking effect notable, prolonged Durable, the advantage such as practical.

Accompanying drawing explanation

In order to be illustrated more clearly that the technical scheme of this utility model embodiment, will use required in embodiment below Accompanying drawing be briefly described, it will be appreciated that the following drawings illustrate only some embodiment of the present utility model, the most should be by Regard the restriction to scope as, for those of ordinary skill in the art, on the premise of not paying creative work, also Other relevant accompanying drawings can be obtained according to these accompanying drawings.

The external structure schematic diagram of the self-locking hook that Fig. 1 provides for this utility model embodiment；

The internal structure schematic diagram of the self-locking hook that Fig. 2 provides for this utility model embodiment.

Figure acceptance of the bid note is respectively as follows: hook body 10, hook portion 101, hangs mouth 102, safety plate 103, fixing seat 104, guides Bar 105, first passage 106, spring base 107, second channel 108, back-moving spring 109, limited post 110, bar-shaped trough 111；Handle 200, the first arm 201, the second arm 202, groove 203, expansion link 204；Suspension ring set 300, connects post 301, wire ring set 302, pin 303, fixed cover 304, safety plug 305, cord hole 306, chamfering 307.

Detailed description of the invention

One of groundwork when the lifting operation of sucker rod is oil well, it is that a risk is big, and lifting speed is fast, A kind of special operation pumped.In operation process, piece one puts forward from oil well of sucker rod is complete The most one by one lower in oil well after work.At present, the open hanger of the usually normal type of sucker rod hook used at each elephant Hook, this kind of suspension hook, during sucker rod lifting or falling, is easily generated the problems such as unhook when running into collision, cause machinery or Personal injury accident, impact produces.

In consideration of it, designer of the present utility model is by long-term exploration and trial, and experiment repeatedly and effort, no Disconnected reform and innovation, devise a kind of self-locking hook, during sucker rod lifting or falling, can move up and down by arranging Safety plate, can prevent sucker rod from surprisingly breaking off relations and cause the phenomenon of security incident, greatly improve the safety of operation process, really Keeping normal life activities produces and is smoothed out.

For making the purpose of this utility model embodiment, technical scheme and advantage clearer, new below in conjunction with this practicality Accompanying drawing in type embodiment, is clearly and completely described the technical scheme in this utility model embodiment, it is clear that retouched The embodiment stated is a part of embodiment of this utility model rather than whole embodiments.Generally described in the accompanying drawing herein and The assembly of this utility model embodiment illustrated can be arranged with various different configurations and design.

Therefore, below the detailed description of the embodiment of the present utility model provided in the accompanying drawings is not intended to limit requirement The scope of the present utility model of protection, but it is merely representative of selected embodiment of the present utility model.Based in this utility model Embodiment, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, all Belong to the scope of this utility model protection.

It should also be noted that similar label and letter represent similar terms, therefore, the most a certain Xiang Yi in following accompanying drawing Individual accompanying drawing is defined, then need not it be defined further and explains in accompanying drawing subsequently.

In description of the present utility model, " " center ", " on ", D score, "left", "right", " perpendicular it should be noted that term Directly ", " level ", " interior ", the orientation of the instruction such as " outward " or position relationship be based on orientation shown in the drawings or position relationship, or It is the orientation or position relationship usually put during the use of this utility model product, is for only for ease of description this utility model and letter Change describe rather than instruction or the hint device of indication or element must have specific orientation, with specific azimuth configuration and Operation, therefore it is not intended that to restriction of the present utility model.

Additionally, the term such as term " level ", " vertically ", " pendency " is not offered as requiring parts abswolute level or pendency, and It is to be slightly tilted.As " level " only refers to for its direction relatively " vertically " more level, it it is not this structure of expression Must be perfectly level, but can be slightly tilted.Additionally, term " first ", " second " are only used for describing purpose, and can not It is interpreted as instruction or hint relative importance or the implicit quantity indicating indicated technical characteristic.

In description of the present utility model, in addition it is also necessary to explanation, unless otherwise clearly defined and limited, term " sets Put ", should be interpreted broadly " installation ", " being connected ", " connection ", connect for example, it may be fixing, it is also possible to be to removably connect, Or be integrally connected；Can be to be mechanically connected, can be to be joined directly together, it is also possible to be indirectly connected to by intermediary, Ke Yishi The connection of two element internals.For the ordinary skill in the art, can understand that above-mentioned term is at this with concrete condition Concrete meaning in utility model.

Embodiment

Referring to Fig. 1 and Fig. 2, the self-locking hook that the present embodiment provides includes hook body 10, the lower end of hook body 10 Being provided with the hook portion 101 for catching on sucker rod, the lower end of hook portion 101 and hook body 10 is formed hangs mouth 102, and suspension hook is originally Body 10 is provided with, near the position hanging mouth 102, the safety plate 103 that can move up and down.

During use, by external force, safety plate 103 is moved up, open and hang mouth 102, by the suspension ring on sucker rod from hanging mouth 102 are linked in hook portion 101, and hook portion 101 catches on sucker rod, then safety plate 103 under the effect of gravity or external force from Dynamic downslide, closes and hangs mouth 102, be locked in hook portion 101 by the suspension ring of sucker rod, it is achieved the effect of self-locking.Therefore, when suspension hook basis Body 10, during lifting or whereabouts sucker rod, if sucker rod runs into collision, is closed by safety plate 103 owing to hanging mouth 102, The suspension ring preventing sucker rod come off from hook body 10, and then avoid the generation of security incident, it is ensured that lifting operation The safety of whole process, it is ensured that produce and can be smoothed out.

Refer to Fig. 2, additionally, arrange fixing seat 104 and guide post 105 in hook body 10, fixing seat 104 is provided with First passage 106, one end of guide post 105 is stretched in first passage 106, and the other end is connected with safety plate 103, safety plate 103 It is slidably connected with hook body 10.

When safety plate 103 is relative with hook body 10 slide time, one end of guide post 105 stretches in first passage 106, and Can move in first passage 106, first passage 106 avoids guide post 105 sliding by the sliding trace of restricted guidance bar 105 Dynamic hour offset dislocation, and then the sliding trace that guarantee insurance sheet 103 is when sliding relative to hook body 10 is linearly so that protect Danger sheet 103 can pin exactly and hang mouth 102, it is ensured that safety plate 103 does not offsets, it is to avoid what its skew caused is hanging mouth 102 There is situation jaggy in place, farthest avoids sucker rod from hanging the security incident caused that comes off at mouth 102.

Refer to Fig. 2, be provided with spring base 107 in first passage 106, spring base 107 is provided with second channel 108, One end of guide post 105 extend in second channel 108 from first passage 106, is arranged with back-moving spring 109 outside guide post 105, The two ends of back-moving spring 109 are respectively held against spring base 107 and safety plate 103.

After being made by external force to move on safety plate 103, back-moving spring 109 is compressed, after removing this external force, and safety plate 103 Can automatically move down under the elastic pressure of back-moving spring 109, pin and hang mouth 102, it is achieved the effect of self-locking.Pass through back-moving spring The assosting effect of 109, is avoided that safety plate 103 is stuck and causes its phenomenon that can not move down, be effectively improved safety plate 103 Self-locking effect.Additionally, under the extruding of back-moving spring 109, safety plate 103 can prop up hook portion 101 tightly, can be effective Avoid safety plate 103 arbitrarily upper move cause hang the phenomenon that mouth 102 is opened, improve safety plate 103 further by sucker rod It is locked in the stability in hook portion 101.

Refer to Fig. 2, additionally, be provided with limited post 110 in hook body 10, safety plate 103 is provided with bar-shaped trough 111, limited post 110 stretches in bar-shaped trough 111.

In the present embodiment, limited post 110 is provided with two, the straight line at two limited post 110 places and the axle of guide post 105 Line overlaps and plays the effect of location.Two limited posts 110 stretch in the bar-shaped trough 111 on safety plate 103 so that safety plate 103 Straight line along two limited post 110 places can slide up and down, by outer wall and the bar shaped of limited post 110 in hook body 10 The cooperation of the inwall of groove 111, it is ensured that safety plate 103 can linearly slide up and down, it is to avoid safety plate 103 dislocation causes oil pumping Bar, from hanging the phenomenon come off mouth 102, strengthens security performance when this self-locking hook uses.Certainly the number of limited post 110 is also It can be three or four or multiple.

Refer to Fig. 1 and Fig. 2, on the basis of above-mentioned design structure, be provided with for driving insurance in hook body 10 The handle 200 that sheet 103 moves up.User makes to move on safety plate 103 by operation handle 200, greatly increases behaviour The convenience made and motility.

Concrete, in the present embodiment, handle 200 includes the first arm 201, and the first arm 201 rotates with hook body 10 Connecting, the first arm 201 is provided with groove 203, is provided with expansion link 204 in groove 203, one end of expansion link 204 is stretched out recessed Groove 203 is the most hinged with safety plate 103, and handle 200 also includes the second arm 202 for driving the first arm 201 to rotate, the second arm 202 are connected and are formed v-shaped structure with the first arm 201 away from one end of safety plate 103 is fixing, and certain expansion link 204 can be recessed Groove 203 stretches, and can rotate with the first arm 201.

As preferably, in the present embodiment, the first arm 201 is one-body molded with the second arm 202, the first arm 201 and the second arm The junction of 202 forms V-shape portion, and this V-shape portion is rotationally connected with hook body 10.Certainly, handle 200 can not also use The design structure of two arms 202, and use and a rotation handle is set in one end that the first arm 201 and hook body 10 are rotationally connected Structure, user is by rotating driving the first arm 201 to rotate, or uses other version, as long as it can The first arm 201 is driven to rotate.

During use, user directly with the second arm 202 on hands operation handle 200, makes the second arm 202 be rotated up, when So, hook body 10 is provided with the space rotated for the second arm 202, and then drives the first arm 201 to be rotated up, be arranged on recessed Expansion link 204 in groove 203 overhangs to groove 203 to drive again and moves on safety plate 103, and then opens and hang mouth 102；After loosing one's grip, Safety plate 103 moves down under the active force of back-moving spring 109 automatically, pins and hangs mouth 102, thoroughly realizes the effect of self-locking.This reality Executing in example, it is the most ingenious that the first arm 201 on handle 200 is connected the v-shaped structure formed with the second arm 202, and this design structure will The linear motion that convert rotational motion is safety plate 103 of the second arm 202 so that operation the most conveniently and flexibly, greatly carries The high practicality of this hook body 10.

Refer to Fig. 1 and Fig. 2, additionally, on the basis of above-mentioned design structure, the upper end of hook body 10 is provided with suspension ring Set 300 and connect post 301, connects and is provided with wire ring set 302 on the sidewall of post 301, and wire ring set 302 fixes company with being connected post 301 Connecing, the outer wall of wire ring set 302 is provided with external screw thread, and the lower end of suspension ring set 300 is provided with the 4th blind hole, and the inwall of the 4th blind hole sets Being equipped with the female thread coordinated with external screw thread, the upper end of suspension ring set 300 is provided with lacing hole.

Being provided with pin 303 on suspension ring set 300, suspension ring set 300 is connected by pin 303 with wire ring set 302, pin 303 Sidewall and the sidewall of wire ring set 302 through suspension ring set 300.By the design structure of pin 303 be possible to prevent suspension ring set 300 with The loose or dislocation phenomenon that wire ring set 302 revolution causes, it is to avoid the generation of security incident, improves this self-locking hook peace in use Full performance.

Connect post 301 and the position of wire ring set 302 be provided with fixed cover 304, fixed cover 304 be connected post 301 screw thread Connect and offset with wire ring set 302.During lifting by crane or falling, the weight of sucker rod is relatively big, easily makes wire ring set 302 and connects Connecing fracture between post 301 causes connection post 301 to come off from wire ring set 302.Therefore, by the design structure energy of fixed cover 304 Enough prevent from connecting post 301 to come off from wire ring set 302, it is to avoid the generation of security incident, contribute to reinforced wire snare 302 in connection Stability between post 301 and and the weight capacity of this self-locking hook, further improve this self-locking hook in use Safety.

Additionally, be additionally provided with safety plug 305 on fixed cover 304, safety plug 305 passes sidewall and the connection of fixed cover 304 Post 301.It is possible to prevent fixed cover 304 to turn round, directly by fixed cover 304 in connection post 301 by the design structure of safety plug 305 In connecting, post 301 is locked, it is to avoid the two phenomenon come off each other, this structure greatly increases the load-bearing of this self-locking hook Ability and safety.

Certainly, suspension ring set 300 is provided with the cord hole 306 for steel wire penetrating, in the outer rim of wire clips along the circumference of cord hole Direction is additionally provided with the chamfering 307 of arc, and the chamfering 307 of arc contributes to reducing the abrasion between steel wire rope and suspension ring 300 set, Improve the service life of steel wire rope.

In sum, the self-locking hook that the present embodiment provides, by arranging one and can move up and down hanging at mouth 102 Safety plate 103, automatically can pin hanging mouth 102 in lifting or dropping process, effectively prevent sucker rod from hanging mouth 102 The phenomenon that place comes off, it is to avoid security incident generation；And cooperated by back-moving spring 109 and handle 200, thoroughly realize protecting Danger sheet 103 can hang the effect of mouth 102 by automatic locking, greatly facilitates user operation, improves the flexible of this self-locking hook Property.In a word, the design structure of this self-locking hook is ingenious, simple, reasonable, have use conveniently, safely, flexible operation, self-locking imitate The advantages such as fruit is obvious, sound construction, and bearing capacity is strong.

The foregoing is only preferred embodiment of the present utility model, be not limited to this utility model, for this For the technical staff in field, this utility model can have various modifications and variations.All in spirit of the present utility model and principle Within, any modification, equivalent substitution and improvement etc. made, within should be included in protection domain of the present utility model.

Claims (8)

1. a self-locking hook, it is characterised in that include that hook body, the lower end of described hook body are provided with and hang mouth, described Hook body near described in hang the position of mouth and be provided with the safety plate that can move up and down, arrange in described hook body fixing seat and Guide post, described fixing seat is provided with first passage, and one end of described guide post is stretched in described first passage, the other end with Described safety plate connects, and described safety plate is slidably connected with described hook body, is provided with spring base, institute in described first passage Stating and be provided with second channel on spring base, one end of described guide post extend in described second channel from described first passage, Being arranged with back-moving spring outside described guide post, the two ends of described back-moving spring are respectively held against described spring base and described safety plate.

Self-locking hook the most according to claim 1, it is characterised in that be provided with limited post in described hook body, described Being provided with bar-shaped trough on safety plate, described limited post stretches in described bar-shaped trough.

Self-locking hook the most according to claim 2, it is characterised in that be provided with for driving described in described hook body The handle that safety plate moves up.

Self-locking hook the most according to claim 3, it is characterised in that described handle includes the first arm, described first arm with Described hook body is rotationally connected, and described first arm is provided with groove, is provided with expansion link, described expansion link in described groove One end stretch out described groove hinged with described safety plate.

Self-locking hook the most according to claim 4, it is characterised in that described handle also includes for driving described first arm The second arm rotated, described second arm is fixing with described first arm to be connected and forms V-arrangement.

Self-locking hook the most according to claim 1, it is characterised in that the upper end of described hook body be provided with suspension ring set and Connecting post, the sidewall of described connection post is provided with wire ring set, described wire ring set is connected the fixing connection of post, described wire ring with described The outer wall of set is provided with external screw thread, and the lower end of described suspension ring set is provided with the 4th blind hole, and the inwall of described 4th blind hole is provided with The female thread coordinated with described external screw thread, the upper end of described suspension ring set is provided with lacing hole.

Self-locking hook the most according to claim 6, it is characterised in that described suspension ring put and are provided with pin, described suspension ring Set is connected by described pin with described wire ring set, and described pin passes sidewall and the side of described wire ring set of described suspension ring set Wall.

Self-locking hook the most according to claim 7, it is characterised in that the position that described connection post overlaps near described wire ring sets Being equipped with fixed cover, described fixed cover connects with the described male screw that is connected, and described fixed cover offsets with described wire ring set.