阅读说明：本技术 一种双链电动葫芦 (Double-chain electric hoist ) 是由 林杨波 于 2020-06-15 设计创作，主要内容包括：本发明公开了一种双链电动葫芦,涉及电动葫芦领域,其包括电动葫芦主体,电动葫芦主体的下端面设置有进链孔和出链孔,还包括上端开口的储链盒,储链盒上扣设有防护罩,防护罩的一侧呈弯折状设置并形成凹槽,凹槽的底壁抵触电动葫芦主体的下端面,且侧壁抵触电动葫芦主体的外壁,并且凹槽的底壁贯穿设置有对准出链孔的连接孔。本发明具有以下优点和效果：通过设置防护罩以及储链盒,为链条提供相对密闭的滑移通道和储存空间,避免外界的杂物和雨水进入储链盒内,避免链条出现锈蚀现象,从而保证电动葫芦的正常使用,提高电动葫芦的使用寿命。(The invention discloses a double-chain electric hoist, which relates to the field of electric hoists and comprises an electric hoist main body, wherein a chain inlet hole and a chain outlet hole are formed in the lower end surface of the electric hoist main body, the double-chain electric hoist further comprises a chain storage box with an opening at the upper end, a protective cover is buckled on the chain storage box, one side of the protective cover is bent to form a groove, the bottom wall of the groove abuts against the lower end surface of the electric hoist main body, the side wall of the groove abuts against the outer wall of the electric hoist main body, and a connecting hole aligned with the chain outlet hole is formed in the bottom wall of. The invention has the following advantages and effects: through setting up the protection casing and storing up the chain box, for the chain provides relative inclosed passageway and the storage space that slides, avoid external debris and rainwater to get into and store up the chain box in, avoid the chain corrosion phenomenon to appear to guarantee electric block's normal use, improve electric block's life.)

1. The utility model provides a double-chain electric block, includes electric block main part (1), the lower terminal surface of electric block main part (1) is provided with into chain hole (11) and play chain hole (12), its characterized in that: still include upper end open-ended storage chain box (4), it is equipped with protection casing (5) to store up to detain on chain box (4), one side of protection casing (5) is the form setting of buckling and forms recess (51), the diapire of recess (51) is contradicted the lower terminal surface of electric block main part (1), and the lateral wall is contradicted the outer wall of electric block main part (1), and the diapire of recess (51) runs through to be provided with and aims at connecting hole (52) of going out chain hole (12).

2. The double-chain electric hoist according to claim 1, characterized in that: the inner wall of the protective cover (5) is provided with a pair of limiting plates (53) side by side, and the limiting plates (53) are located on two sides of the connecting hole (52).

3. The double-chain electric hoist according to claim 1, characterized in that: the upper end of protection casing (5) is provided with connecting portion (54) of rectangular shape, the middle part outer wall of electric block main part (1) is provided with a pair of centre gripping fixing base (17) at connecting portion (54) both ends, and is a pair of the level is provided with pivot (18) between fixing base (17), and run through on connecting portion (54) and be provided with the confession shaft hole (55) that pivot (18) were worn to establish.

4. The double-chain electric hoist according to claim 3, characterized in that: the bottom of the chain storage box (4) is arranged in an inclined manner, and one end, close to the connecting hole (52), is higher than the other end.

5. The double-chain electric hoist according to claim 1, characterized in that: the upper end of the chain storage box (4) is sleeved with the lower end outer wall of the protective cover (5), a ring of baffle ring (56) used for abutting against the upper end face of the chain storage box (4) is arranged on the lower end outer wall of the protective cover (5), and a locking mechanism (6) used for fixing the chain storage box on the protective cover (5) is arranged on the chain storage box (4).

6. The double-chain electric hoist according to claim 5, characterized in that: the locking mechanism (6) comprises a plurality of locking rods (61) which are vertically and uniformly distributed on the upper end face of the chain storage box (4), locking holes (57) for the locking rods (61) to penetrate through are formed in the blocking ring (56), and a pair of elastic clamping hooks (62) used for tightly hooking the upper end face of the blocking ring (56) is arranged at the upper end of the locking rods (61).

7. The double-chain electric hoist according to claim 6, characterized in that: the novel chain storage box is characterized in that a protection rod (7) is vertically arranged in the protection cover (5), a support (8) is arranged in the chain storage box (4), a protection hole (81) for the protection rod (7) to penetrate is arranged on the support (8) in a penetrating mode, and the lower end of the protection rod (7) is connected with a protection ring (71) which is used for abutting against the lower end face of the support (8).

8. The double-chain electric hoist according to claim 1, characterized in that: electric block main part (1) deviates from the one end outer wall of going out chain hole (12) is provided with mounting groove (13) that supply the chain ring embedding of chain tip, and is provided with the intercommunication between terminal surface and the outer wall mounting groove (13) and supply spacing groove (14) of the embedding of the chain ring of the second from last, the outer wall of electric block main part (1) is provided with the cover mounting groove (13) with apron (15) of spacing groove (14), and be provided with threaded connection on apron (15) in screw (16) of electric block main part (1) outer wall.

9. The double-chain electric hoist according to claim 8, characterized in that: a pair of supporting seats (2) is transversely arranged in the middle of the upper end face of the electric hoist main body (1), a hoisting rod (3) is vertically arranged between the pair of supporting seats (2), the hoisting rod (3) comprises a pair of supporting rods (31), and a hanging rod (32) is arranged between the upper ends of the pair of supporting rods (31);

the pair of supporting seats (2) are provided with two groups of mutually communicated positioning holes (21) in a penetrating mode, the two groups of positioning holes (21) are arranged in a staggered mode, the lower ends of the pair of supporting rods (31) are provided with limiting holes (33) communicated with the positioning holes (21) in each group in a penetrating mode, bolts (22) are inserted between the positioning holes (21) and the limiting holes (33), and nuts (23) are connected to the bolts (22) in a threaded mode.

Technical Field

The invention relates to the field of electric hoists, in particular to a double-chain electric hoist.

Background

The electric hoist is a special hoisting device, is arranged on a crown block and a gantry crane, has the characteristics of small volume, light dead weight, simple operation, convenient use and the like, and is used in places such as industrial and mining enterprises, warehouses, docks and the like.

Chinese patent CN204661217U discloses a two electric block, and it includes electric block body and electric trolley, and two electric block bodies are the reverse installation parallel arrangement, and the chain bag passes through bolted connection on the electric block body, and the chain in the chain bag bypasses two electric block body coupling lifting hooks, wholly constitutes two electric block.

When being applied to above-mentioned electric block when outdoor, because the chain bag is upper end opening form and sets up, consequently debris and rainwater will be stored in the chain bag, cause the pollution to the inside of chain bag, lead to the chain corrosion phenomenon to appear, influence electric block's normal use, remain to improve.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a double-chain electric hoist with the effect of protecting a chain.

The technical purpose of the invention is realized by the following technical scheme: the utility model provides a double-chain electric block, includes the electric block main part, the lower terminal surface of electric block main part is provided with into chain hole and goes out the chain hole, still includes upper end open-ended chain box that stores up, it is equipped with the protection casing to store up to detain on the chain box, one side of protection casing is the form setting of buckling and forms the recess, the diapire of recess is contradicted the lower terminal surface of electric block main part, and the lateral wall is contradicted the outer wall of electric block main part, and the diapire of recess runs through and is provided with the alignment go out the connecting hole in chain hole.

Through adopting above-mentioned technical scheme, when using above-mentioned electric block outdoors, the chain gets into along advancing the chain hole to along going out the chain hole roll-off. This moment through setting up the protection casing and storing up the chain box to be provided with the connecting hole that communicates out the chain hole on the protection casing, for the chain provides relative inclosed passageway and the storage space that slides, avoid external debris and rainwater to get into to store up in the chain box, guarantee to store up the inside clean and tidy degree of chain box, avoid the chain corrosion phenomenon to appear, thereby guarantee electric block's normal use, improve electric block's life.

The present invention in a preferred example may be further configured to: the inner wall of the protective cover is provided with a pair of limiting plates side by side, and the limiting plates are positioned on two sides of the connecting hole.

Through adopting above-mentioned technical scheme, realize the direction and the spacing of chain through setting up the limiting plate, stability when increase chain motion avoids the chain to strike the connecting hole inner wall simultaneously, avoids the connecting hole inner wall wearing and tearing or damage phenomenon to appear, improves the life of protection casing.

The present invention in a preferred example may be further configured to: the upper end of protection casing is provided with the connecting portion of rectangular shape, the middle part outer wall of electric block main part is provided with a pair of centre gripping the fixing base at connecting portion both ends, it is a pair of the level is provided with the pivot between the fixing base, and run through on the connecting portion and be provided with the confession the shaft hole that the pivot was worn to establish.

Through adopting above-mentioned technical scheme, when electric block started and stopped, under inertial effect, the protection casing will bear the impact force of storing up chain box and chain with the junction position of electric block main part. Consequently through setting up connecting portion and pivot for protection casing and connecting portion rotate to be connected in the pivot, consequently when electric block drives the protection casing and stores up the chain box motion, the protection casing and store up the chain box and can freely swing, consequently can eliminate the stress and the impact force of the junction of protection casing and electric block main part, avoid rupture phenomenon to appear in junction between them.

The present invention in a preferred example may be further configured to: the bottom of the chain storage box is arranged in an inclined mode, and one end, close to the connecting hole, of the chain storage box is higher than the other end of the chain storage box.

Through adopting above-mentioned technical scheme, because the bottom that stores up the chain box is the slope form setting to when the chain is keyed in to storing up the chain box in, the chain contacts earlier and stores up the eminence position of chain box bottom position, then automatic along storing up chain box bottom cunning and move to low position, realize regular collection and the stable collection of chain, avoid the chain striking or the damage phenomenon of hitting to appear. And accomodate the in-process as the chain, the chain cunning moves to the low position that stores up chain box diapire, and simultaneously under the action of gravity of chain, the drive stores up the outside upset of chain box for the conflict position of protection casing and electric block main part is in unsettled state, reduces the pressure of both conflict positions, avoids the protection casing damage phenomenon to appear.

The present invention in a preferred example may be further configured to: the upper end of the chain storage box is sleeved with the lower end outer wall of the protective cover, a circle of baffle ring used for abutting against the upper end face of the chain storage box is arranged on the lower end outer wall of the protective cover, and a locking mechanism used for fixing the chain storage box on the protective cover is arranged on the chain storage box.

Through adopting above-mentioned technical scheme, when the installation stores up the chain box, the lower extreme outer wall of protection casing is located to the upper end cover that will store up the chain box, and when the up end that stores up the chain box contradicted the lower terminal surface of retaining ring, the realization stored up the spacing of chain box. Then, the chain storage box is fixed by the locking mechanism, and the chain storage box can be installed and fixed. When dismantling and store up the chain box, earlier relieve locking mechanical system, then the drive stores up the chain box and moves down, when storing up the chain box and breaking away from the protection casing completely, realizes storing up the dismantlement of chain box. Therefore, the chain box is convenient to disassemble, and the chain box can be quickly disassembled and assembled, so that the maintenance and replacement processes of the chain box are easier and more convenient.

The present invention in a preferred example may be further configured to: the locking mechanism comprises a plurality of locking rods which are vertically and uniformly distributed on the upper end face of the chain storage box, locking holes for the locking rods to penetrate through are arranged on the blocking ring in a penetrating mode, and a pair of elastic clamping hooks for tightly hooking the upper end face of the blocking ring is arranged at the upper end of the locking rods.

By adopting the technical scheme, when the chain storage box is installed, the locking rod and the elastic clamping hook are embedded into the locking hole, and then the chain storage box is utilized to control the locking rod and the elastic clamping hook to synchronously move. Until the upper end face of the chain storage box is abutted against the lower end face of the retaining ring, the elastic clamping hook is separated from the locking hole and springs open the upper end face of the retaining ring tightly, so that locking and fixing of the locking mechanism and mounting and fixing of the chain storage box are realized. When the chain storage box is detached, the elastic clamping hook is pressed to be embedded into the locking hole, and then the chain storage box is utilized to drive the locking rod and the elastic clamping hook to move reversely. When the locking rod and the elastic hook are completely separated from the locking hole, the connection and the disconnection of the locking mechanism and the disassembly of the chain storage box are realized. Therefore, the chain storage box is quickly disassembled and assembled by the locking mechanism which is simple in structure and easy and convenient in locking and releasing processes.

The present invention in a preferred example may be further configured to: the protective cover is characterized in that a protective rod is vertically arranged in the protective cover, a support is arranged in the chain storage box, a protective hole for the protective rod to penetrate is arranged on the support in a penetrating mode, and the lower end of the protective rod is in threaded connection with a protective ring used for abutting against the lower end face of the support.

Through adopting above-mentioned technical scheme, when the installation stores up the chain box for behind the guard bar worn to establish the guard aperture, fasten the lower extreme in the guard bar with the protection ring soon. Therefore, when the locking mechanism fails, the protective ring is abutted against the support, the chain storage box is limited and fixed, the falling phenomenon of the chain storage box is avoided, and the stability and the safety of the chain storage box during use are ensured.

The present invention in a preferred example may be further configured to: the electric block main part deviates from the one end outer wall that goes out the chain hole is provided with the mounting groove that supplies the chain ring embedding of chain tip, and is provided with the intercommunication between terminal surface and the outer wall the mounting groove just supplies the spacing groove of last second chain ring embedding, the outer wall of electric block main part is provided with the cover the mounting groove with the apron of spacing groove, and be provided with threaded connection on the apron in the screw of electric block main part outer wall.

Through adopting above-mentioned technical scheme, when using the double-chain, with the chain ring embedding mounting groove of chain one end tip in, with the next to last chain ring embedding spacing inslot simultaneously, two chain ring joints were fixed in mounting groove and spacing inslot this moment. And finally, after the mounting groove and the limiting groove are covered by the cover plate, the chain can be quickly fixed by screwing the screw, so that the chain can be more easily and conveniently mounted.

The present invention in a preferred example may be further configured to: a pair of supporting seats is transversely arranged in the middle of the upper end face of the electric hoist main body, a hoisting rod is vertically arranged between the pair of supporting seats, the hoisting rod comprises a pair of supporting rods, and a hanging rod is arranged between the upper ends of the pair of supporting rods; the supporting seat is provided with two groups of mutually communicated positioning holes in a penetrating mode, the two groups of positioning holes are arranged in a staggered mode, the lower end of the supporting rod is provided with a limiting hole in a penetrating mode, the limiting hole is communicated with each group of positioning holes, a bolt is inserted between each positioning hole and the corresponding limiting hole, and a nut is connected to the bolt in a threaded mode.

Through adopting above-mentioned technical scheme, through setting up locating hole and the hoisting rod phase-match that a pair of crisscross set up, when hoist and mount the pole and hoist fixedly, can change the central point of electric block main part and put to be used for stable adaptation single strand or double-chain, thereby suitability and stability when increase electric block main part uses.

In conclusion, the invention has the following beneficial effects:

1. by arranging the protective cover and the chain storage box, a relatively closed sliding channel and a relatively closed storage space are provided for the chain, so that external sundries and rainwater are prevented from entering the chain storage box, and the chain is prevented from being rusted, the normal use of the electric hoist is ensured, and the service life of the electric hoist is prolonged;

2. by arranging the freely swinging protective cover and the chain storage box, the stress and impact force at the joint of the protective cover and the electric hoist main body are eliminated, and the fracture phenomenon at the joint of the protective cover and the electric hoist main body is avoided;

3. the chain storage box which is convenient to disassemble is arranged, so that the chain storage box is quickly disassembled and assembled, and the maintenance and replacement processes of the chain storage box are easier and more convenient;

4. the central point that hoist and mount pole change electric block main part through setting up position adjustable puts to be used for stable adaptation single strand or double-stranded, thereby suitability and stability when increase electric block main part uses.

Drawings

FIG. 1 is a schematic structural view of an embodiment;

fig. 2 is a schematic structural view of a main body of the electric block of the embodiment;

FIG. 3 is a schematic diagram of the connection relationship of the embodiment;

fig. 4 is a partially enlarged view of a portion a in fig. 3.

Reference numerals: 1. an electric hoist main body; 11. a chain inlet hole; 12. a chain outlet hole; 13. mounting grooves; 14. a limiting groove; 15. a cover plate; 16. a screw; 17. a fixed seat; 18. a rotating shaft; 2. a supporting seat; 21. positioning holes; 22. a bolt; 23. a nut; 3. hoisting the rod; 31. a support bar; 32. a boom; 33. a limiting hole; 4. storing the chain box; 5. a protective cover; 51. a groove; 52. connecting holes; 53. a limiting plate; 54. a connecting portion; 55. a shaft hole; 56. a baffle ring; 57. a locking hole; 6. a locking mechanism; 61. a locking lever; 62. an elastic hook; 7. a guard bar; 71. a guard ring; 8. a support; 81. and (4) protecting the hole.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1 and 2, the double-chain electric hoist includes an electric hoist body 1, and a chain inlet hole 11 and a chain outlet hole 12 are provided on a lower end surface of the electric hoist body 1.

As shown in fig. 1 and 2, an outer wall of one end of the electric block body 1 facing away from the chain outlet hole 12 is provided with a mounting groove 13 for a chain ring at the end of the chain to be embedded, and a limiting groove 14 for a penultimate chain ring to be embedded and communicating with the mounting groove 13 is arranged between the lower end surface and the outer wall.

As shown in fig. 1 and 2, the outer wall of the electric hoist main body 1 is provided with a cover plate 15 covering the mounting groove 13 and the stopper groove 14, and the cover plate 15 is provided with a screw 16 screwed to the outer wall of the electric hoist main body 1.

When the single chain is used, one end of the chain directly penetrates into the chain inlet hole 11 and then slides out along the chain outlet hole 12, and then the single chain can be installed and fixed.

When the double chain is used, the chain ring at one end of the chain is embedded into the mounting groove 13, and the penultimate chain ring is embedded into the limiting groove 14, so that the two chain rings are clamped and fixed in the mounting groove 13 and the limiting groove 14.

Finally, the mounting groove 13 and the limiting groove 14 are covered by the cover plate 15, and then the screw 16 is screwed tightly, so that the end part of the chain can be quickly fixed. And then the other end of the chain penetrates along the chain inlet hole 11 and then slides out along the chain outlet hole 12, so that the double-chain is installed and fixed.

As shown in fig. 1 and 3, a pair of supporting seats 2 is transversely arranged at the middle position of the upper end surface of the electric hoist body 1, and a hoisting rod 3 is vertically arranged between the pair of supporting seats 2. The hoist bar 3 includes a pair of support bars 31, and a hanger bar 32 is provided between upper ends of the pair of support bars 31.

As shown in fig. 1 and 3, two sets of positioning holes 21 are formed through the pair of supporting bases 2, and the two sets of positioning holes 21 are arranged in a staggered manner. The lower ends of the pair of support rods 31 are provided with limiting holes 33 communicated with each group of positioning holes 21 in a penetrating mode, bolts 22 are inserted between the positioning holes 21 and the limiting holes 33, and nuts 23 are connected to the bolts 22 in a threaded mode.

When replacing the single strand or the double strand, the nut 23 is loosened and then the bolt 22 is removed. Then the hoisting rod 3 is driven to move, the limiting hole 33 at the lower end of the supporting rod 31 is aligned with the matching locating hole 21 on the supporting seat 2, then the bolt 22 is inserted into the locating hole 21 and the limiting hole 33, and the nut 23 is screwed.

Consequently, through setting up a pair of locating hole 21 and the hoisting rod 3 phase-match that staggers and set up, when hoist and mount pole 3 and hoist fixedly, can change the central point of electric block main part 1 and put to be used for stable adaptation single strand or double-chain, thereby suitability and stability when increase electric block main part 1 uses.

As shown in fig. 1 and 2, the double-chain electric hoist further includes a chain storage box 4 with an open upper end, the bottom of the chain storage box 4 is disposed in an inclined manner, and one end close to the connection hole 52 is higher than the other end. The chain storage box 4 is buckled with a protective cover 5, and one side of the protective cover 5 is bent to form a groove 51.

As shown in fig. 1 and 2, the bottom wall of the groove 51 abuts against the lower end surface of the electric hoist main body 1, the side wall abuts against the outer wall of the electric hoist main body 1, and the bottom wall of the groove 51 is provided with a connecting hole 52 aligned with the zipper outlet hole 12.

As shown in fig. 1 and 2, a pair of stopper plates 53 are arranged side by side on the inner wall of the shield 5, and the pair of stopper plates 53 are located on both sides of the connection hole 52.

When the electric hoist is used outdoors, the chain enters along the chain inlet hole 11 and slides out along the chain outlet hole 12. This moment through setting up protection casing 5 and storing up chain box 4 to be provided with the connecting hole 52 that feeds through out chain hole 12 on protection casing 5, for the chain provides relative inclosed passageway and the storage space of sliding, avoid external debris and rainwater to get into and store up in chain box 4, guarantee to store up the inside clean and tidy degree of chain box 4, avoid the chain corrosion phenomenon to appear, thereby guarantee electric block's normal use, improve electric block's life.

Simultaneously through setting up the direction and the spacing of limiting plate 53 realization chain, stability when the increase chain motion avoids the chain to strike connecting hole 52 inner wall simultaneously, avoids connecting hole 52 inner wall wearing and tearing or damage phenomenon to appear, improves the life of protection casing 5.

As shown in fig. 1 and 3, the upper end of the protection cover 5 is provided with a strip-shaped connecting portion 54, and the outer wall of the middle portion of the electric block body 1 is provided with a pair of fixing seats 17 for clamping two ends of the connecting portion 54. The rotating shaft 18 is horizontally arranged between the pair of fixed seats 17, and a shaft hole 55 for the rotating shaft 18 to penetrate is arranged on the connecting part 54.

When the electric hoist starts and stops, under the action of inertia, the connecting position of the protective cover 5 and the electric hoist main body 1 bears the impact force of the chain storage box 4 and the chain. Therefore, by arranging the connecting portion 54 and the rotating shaft 18, the protective cover 5 and the connecting portion 54 are rotatably connected to the rotating shaft 18, so that when the electric hoist drives the protective cover 5 and the chain storage box 4 to move, the protective cover 5 and the chain storage box 4 can swing freely, stress and impact force at the joint of the protective cover 5 and the electric hoist main body 1 can be eliminated, and the fracture phenomenon at the joint of the protective cover 5 and the electric hoist main body 1 is avoided.

As shown in fig. 3 and 4, the upper end of the chain storage box 4 is sleeved on the outer wall of the lower end of the protective cover 5, the outer wall of the lower end of the protective cover 5 is provided with a ring of baffle ring 56 for abutting against the upper end surface of the chain storage box 4, and the chain storage box 4 is provided with a locking mechanism 6 for fixing the chain storage box on the protective cover 5.

As shown in fig. 3 and 4, the locking mechanism 6 includes a plurality of locking rods 61 vertically and uniformly distributed on the upper end surface of the chain storage box 4, a locking hole 57 for the locking rod 61 to penetrate is formed in the retaining ring 56, and a pair of elastic hooks 62 for hooking the upper end surface of the retaining ring 56 is arranged at the upper end of the locking rods 61.

When the magazine 4 is mounted, the lock lever 61 and the elastic hook 62 are fitted into the lock hole 57, and then the lock lever 61 and the elastic hook 62 are controlled to move synchronously by the magazine 4. Until the upper end surface of the chain storage box 4 abuts against the lower end surface of the baffle ring 56, the elastic hook 62 is separated from the locking hole 57 and springs open the upper end surface of the baffle ring 56 tightly, so that the locking and fixing of the locking mechanism 6 and the installation and fixing of the chain storage box 4 are realized.

When the chain box 4 is detached, the elastic hook 62 is pressed to be embedded into the locking hole 57, and then the chain box 4 drives the locking lever 61 and the elastic hook 62 to move reversely. When the locking lever 61 and the elastic hook 62 are completely disengaged from the locking hole 57, the locking mechanism 6 is released and the magazine 4 is removed.

As shown in fig. 3, a guard bar 7 is vertically arranged in the guard 5, and a support 8 is arranged in the chain storage box 4. The support 8 is provided with a protection hole 81 for the protection rod 7 to penetrate through, and the lower end of the protection rod 7 is connected with a protection ring 71 used for abutting against the lower end face of the support 8 through threads.

When the chain storage box 4 is installed, the guard ring 71 is screwed and fixed to the lower end of the guard bar 7 after the guard bar 7 passes through the guard hole 81. Therefore, when the locking mechanism 6 fails, the protective ring 71 is abutted against the support 8, the chain storage box 4 is limited and fixed, the falling phenomenon of the chain storage box 4 is avoided, and the safety of the chain storage box 4 in use is ensured.