CN213059874U

CN213059874U - Crane hook convenient to replace

Info

Publication number: CN213059874U
Application number: CN202022062522.8U
Authority: CN
Inventors: 郑昌文; 郑光日; 桂宏彬
Original assignee: Qingdao Xinchangjin Machinery Co ltd
Current assignee: Qingdao Xinchangjin Machinery Co ltd
Priority date: 2020-09-20
Filing date: 2020-09-20
Publication date: 2021-04-27
Anticipated expiration: 2030-09-20

Abstract

The utility model discloses a hoist lifting hook convenient to change, including support and lifting hook, the both ends of support all run through the inserted bar that is equipped with rather than sliding connection, be equipped with two recesses relative with two inserted bars on the lifting hook, two the inserted bar extends to respectively in the relative recess, two the one end that the inserted bar was carried on the back mutually all with be equipped with between the support and support tight mechanism, it is connected with two protection casings, two to rotate on the support the protection casing lower extreme all offsets with the bottom of support, it includes the screw thread section of thick bamboo with inserted bar fixed connection to support tight mechanism, screw thread section of thick bamboo female connection has the threaded rod, the other end fixedly connected with bearing of threaded rod. The utility model discloses it is rational in infrastructure, not only can be quick install the dismantlement to the lifting hook, easy operation is convenient, for the staff facilitates, also can protect first spring and second spring etc. the practicality is better.

Description

Crane hook convenient to replace

Technical Field

The utility model relates to a hoist spare part technical field especially relates to a crane hook convenient to change.

Background

The prior art discloses a lifting hook of being convenient for change that application number is CN201821201245.0, wraps two explosion-proof pieces, the breach is seted up on the surface of explosion-proof piece, two corresponding one side fixedly connected with fixed plates of explosion-proof piece, the inner chamber fixedly connected with support of fixed plate, the top fixed connection and the stopper of support, the bottom cover of support is equipped with the lifting hook, the draw-in groove has all been seted up at the top of lifting hook both sides, the equal fixedly connected with movable box in bottom of support both sides, the inner chamber of movable box is equipped with the movable plate, the spout with the movable plate looks adaptation is all seted up to the top and the bottom of movable box inner chamber. The utility model discloses a movable box, support, draw-in groove, lifting hook, movable plate, spout, slide bar, spring, spacing swivel nut, handle, screw rod, activity base and kelly mutually support, can play the effect of being convenient for to change to the lifting hook when the lifting hook is changing, and the lifting hook is more convenient when changing usefulness like this.

The transcription is lower in efficiency of installing the lifting hook and is relatively complex, the handle and the like are not protected, so that the lifting hook is easily corroded by rainwater on the outer side and is damaged, the service life is prolonged, and therefore the crane lifting hook convenient to replace is designed to solve the problem.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the shortcoming that exists among the prior art, and the crane hook convenient to change that proposes, it not only can be quick installs the dismantlement to the lifting hook, and easy operation is convenient, for the staff facilitates, also can protect first spring and second spring etc. and the practicality is better.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a crane hook convenient to change, includes support and lifting hook, the both ends of support all run through the inserted bar that is equipped with rather than sliding connection, be equipped with two recesses relative with two inserted bars on the lifting hook, two the inserted bar extends to respectively in the relative recess, two the one end that the inserted bar was carried on the back mutually all with be equipped with between the support and support to tight mechanism, it is connected with two protection casings, two to rotate on the support the protection casing lower extreme all offsets with the bottom of support.

Preferably, the abutting mechanism comprises a threaded cylinder fixedly connected with the inserted bar, a threaded rod is connected with the threaded cylinder in an internal thread manner, a bearing is fixedly connected with the other end of the threaded rod, the threaded rod is rotatably connected with a pulling block with one end back to the back of the groove, the bearing does not abut against the pulling block, a first spring is sleeved on the outer portion of the threaded rod, two ends of the first spring are fixedly connected with the outer rings of the support and the bearing respectively, and a limiting mechanism is arranged on the pulling block and the support.

Preferably, stop gear is including fixing the fixed block on the support, run through from top to bottom the fixed block and be equipped with rather than sliding connection's fixed pin, be equipped with the cotter way on the piece of drawing, the fixed pin extends to the cotter way in, fixedly connected with second spring between fixed pin and the fixed block, the second spring housing is on the fixed pin.

Preferably, the threaded cylinder is integrally formed with the inserted rod, and the outer diameter of the threaded cylinder is smaller than that of the inserted rod.

Preferably, a sealing ring is arranged at the position where the protective cover abuts against the support, and the protective cover is connected with the support through a damping rotating shaft.

Preferably, the bracket is provided with a through hole in a penetrating manner, and the inserted bar and the threaded cylinder penetrate through the through hole and are in sliding connection with the through hole.

Compared with the prior art, the utility model, its beneficial effect does:

1. when installing or dismantling the lifting hook, the manual rotation protection casing of staff, then two fixed pins of downward pulling make it break away from the cotter way, then two pulling blocks of back of the body pulling for two inserted bars break away from the recess, so can dismantle the lifting hook, then during the installation, make two inserted bars no longer be located the inside of support, so can install the lifting hook, loosen and pull the piece, under the effect of first spring, the inserted bar inserts in the recess, so realize the installation to the lifting hook, compare prior art and pass through the screw rod installation, easy operation is convenient, the efficiency of installation dismantlement is high.

2. Can adapt to the degree of depth that does not use through the inserted bar, the corresponding position that draws the piece changes, then can adjust the position that draws the piece through the threaded rod to guarantee to draw the piece can use with stop gear cooperation, with the stability of guaranteeing that the inserted bar inserts the recess.

3. Can protect pulling the piece etc. through the protection casing, make it be difficult for receiving the erosion of rainwater, realize its protection to increase its life.

To sum up, the utility model discloses rational in infrastructure, not only can be quick install the dismantlement to the lifting hook, easy operation is convenient, for the staff facilitates, also can protect first spring and second spring etc. the practicality is better.

Drawings

Fig. 1 is a cross-sectional view of a crane hook according to the present invention, which is easy to replace;

fig. 2 is a front view of the crane hook convenient to replace provided by the utility model.

In the figure: the device comprises a support 1, a hook 2, a groove 3, an inserted rod 4, a threaded cylinder 5, a first spring 6, a threaded rod 7, a bearing 8, a pulling block 9, a protective cover 10, a pin slot 11, a fixing block 12, a second spring 13 and a fixing pin 14.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-2, a crane hook convenient to replace comprises a support 1 and a hook 2, wherein two ends of the support 1 are respectively provided with an inserted rod 4 in a penetrating manner, the inserted rods 4 are in a rectangular column shape, and the inserted rods are in sliding connection with the support; a through hole is arranged on the bracket 1 in a penetrating way, and the inserted bar 4 and the threaded cylinder 5 penetrate through the through hole and are connected with the through hole in a sliding way; two grooves 3 opposite to the two inserting rods 4 are arranged on the lifting hook 2, the two inserting rods 4 respectively extend into the opposite grooves 3, and the lifting hook 2 can be stably connected with the support 1 through the matching of the inserting rods 4 and the grooves 3.

A tightening mechanism is arranged between one end of each of the two inserting rods 4 opposite to each other and the support 1, the tightening mechanism comprises a threaded cylinder 5 fixedly connected with the inserting rods 4, a threaded rod 7 is connected with the threaded cylinder 5 in a threaded manner, the other end of the threaded rod 7 is fixedly connected with a bearing 8, one end of the threaded rod 7 opposite to the groove 3 is rotatably connected with a pull block 9, the bearing 8 does not abut against the pull block 9, a first spring 6 is sleeved outside the threaded rod 7, and two ends of the first spring 6 are respectively and fixedly connected with the support 1 and an outer ring of the bearing 8; although the same lifting hook 2 may have different depths of the grooves 3, the inserting rod 4 can adapt to different depths, the position of the corresponding pulling block 9 is changed, and the position of the pulling block 9 can be adjusted through the threaded rod 7, so that the pulling block 9 can be matched with a limiting mechanism for use.

The pull block 9 and the support of the support 1 are provided with a limiting mechanism, the limiting mechanism comprises a fixed block 12 fixed on the support 1, a fixed pin 14 connected with the fixed block 12 in a sliding manner penetrates through the upper part and the lower part of the fixed block 12, a pin groove 11 is formed in the pull block 9, the fixed pin 14 extends into the pin groove 11, a second spring 13 is fixedly connected between the fixed pin 14 and the fixed block 12, and the second spring 13 is sleeved on the fixed pin 14; through the cooperation of fixed pin 14 and keyway 11, can carry on spacingly to drawing piece 9, make it can not squint, and then realize the spacing to threaded rod 7, make it be difficult for rotating to guarantee the stable counterbalance of inserted bar 4 and recess 3.

The support 1 is rotatably connected with two protective covers 10, the lower ends of the two protective covers 10 are abutted against the bottom of the support 1, and the protective covers 10 can be set according to the actual condition of the support 1; the department that offsets of protection casing 10 and support 1 is equipped with the sealing washer, and protection casing 10 is connected with support 1 through the damping pivot to can protect pull piece 9 etc. and make it be difficult for receiving the erosion of rainwater, realize its protection.

The utility model discloses in, when installing or dismantling lifting hook 2, the manual rotation protection casing 10 of staff, then two fixed pins 14 of downward pulling make it break away from cotter way 11, then pull two blocks 9 of drawing back of the body mutually, make two inserted bars 4 break away from recess 3, so can dismantle lifting hook 2, then during the installation, make two inserted bars 4 no longer be located the inside of support 1, so can install lifting hook 2, loosen and draw block 9, under the effect of first spring 6, inserted bar 4 inserts in the recess 3, so realize the installation to lifting hook 2, compare prior art and pass through the screw rod installation, and easy operation is convenient, and the efficiency of installation dismantlement is high.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a crane hook convenient to change, includes support (1) and lifting hook (2), its characterized in that, the both ends of support (1) all run through and are equipped with inserted bar (4) rather than sliding connection, be equipped with on lifting hook (2) with two relative recess (3) of inserted bar (4), two inserted bar (4) extend to respectively in relative recess (3), two the one end that inserted bar (4) carried on the back mutually all with support (1) between be equipped with support tight mechanism, it is connected with two protection casings (10), two to rotate on support (1) protection casing (10) lower extreme all offsets with the bottom of support (1).

2. The crane hook convenient to replace as claimed in claim 1, wherein the tightening mechanism comprises a threaded cylinder (5) fixedly connected with the insert rod (4), a threaded rod (7) is connected with the threaded cylinder (5) in a threaded manner, a bearing (8) is fixedly connected to the other end of the threaded rod (7), a pull block (9) is rotatably connected to one end of the threaded rod (7) opposite to the groove (3), the bearing (8) does not abut against the pull block (9), a first spring (6) is sleeved outside the threaded rod (7), two ends of the first spring (6) are respectively fixedly connected with outer rings of the support (1) and the bearing (8), and a limiting mechanism is arranged between the pull block (9) and the support (1).

3. A crane hook convenient to replace according to claim 2, wherein the limiting mechanism comprises a fixed block (12) fixed on the support (1), the fixed block (12) is provided with a fixed pin (14) in sliding connection with the fixed block up and down, the pull block (9) is provided with a pin slot (11), the fixed pin (14) extends into the pin slot (11), a second spring (13) is fixedly connected between the fixed pin (14) and the fixed block (12), and the second spring (13) is sleeved on the fixed pin (14).

4. A crane hook convenient to replace as claimed in claim 3, wherein the threaded barrel (5) is integrally formed with the plunger (4) and the threaded barrel (5) has an outer diameter smaller than the outer diameter of the plunger (4).

5. A crane hook convenient to replace as claimed in claim 4, wherein the protective cover (10) is provided with a sealing ring at the position where the protective cover abuts against the bracket (1), and the protective cover (10) is connected with the bracket (1) through a damping rotating shaft.

6. A crane hook convenient to replace as claimed in claim 5, wherein the bracket (1) is provided with a through hole therethrough, and the insert rod (4) and the threaded barrel (5) are slidably connected to the through hole.