Lifting mechanism with reinforced lower lifting hook

Abstract

The utility model discloses a lifting mechanism with a reinforced lower lifting hook, and belongs to the field of lifting equipment. The lifting mechanism comprises a lifting chain arranged in a machine box in a transmission mode and a connecting shell connecting the lifting chain and a hook body, the connecting shell comprises two half shell bodies arranged in a matched mode, the connecting faces of the half shell bodies are arranged in the vertical direction, and on the half shell bodies, connecting through holes and the connecting faces are arranged vertically. The connecting through holes of the two connecting faces are arranged in a one-to-one correspondence mode and fixed through connecting pieces. A hook body is rotationally arranged in the lower connecting groove; a lifting chain is arranged in the upper connecting groove; the two connecting faces are further provided with structure reinforcing assemblies respectively, and each structure reinforcing assembly comprises a reinforcing groove matched with the corresponding reinforcing protruding block. The connecting shell is reset, the structures of the upper connecting groove and the lower connecting groove are changed, and meanwhile, the structure reinforcing assembly is arranged, so that the connecting shell is more stable, uniform dispersion of force can be achieved when a heavy object is lifted, and meanwhile the service life of the lifting mechanism is guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of lifting equipment, in particular to a lifting mechanism with a reinforced lower hook. Background Art

[0002] Lifting operation is an industrial process of transporting mechanical equipment or other objects from one place to another. Most lifting machinery starts a vertical or vertical and horizontal working stroke after the lifting tool picks up the material, unloads at the destination, and then returns to the material picking location in an empty stroke to complete a working cycle, and then conducts the second lifting operation. Generally, lifting machinery lifts or lifts and moves heavy objects through a lifting hook or other material taking devices.

[0003] A hook is the most common lifting tool in lifting machinery. The hook is often suspended on the steel wire rope of the hoisting mechanism by means of a pulley block and the like. Generally speaking, the hook set below is also called a lower hook. A chain is arranged above the lower hook, and a hook body is arranged below. The two are connected through a connecting housing. The stability of the connecting housing can effectively ensure the stability of the lifting mechanism. Therefore, the present application aims to provide a lifting mechanism with a reinforced lower hook. Summary of the Utility Model

[0004] To solve the above technical problems, the utility model provides a lifting mechanism with a reinforced lower hook.

[0005] The technical solution of the utility model is: a lifting mechanism with a reinforced lower hook, including:

[0006] A chassis, in which a lifting chain is drivingly arranged. The lower end of the lifting chain is arranged in a connecting housing, and a hook body is rotatably arranged below the connecting housing.

[0007] The connecting housing includes:

[0008] Two mating half-housings. The connecting surfaces of the two half-housings are both arranged in the vertical direction. On the half-housings, the following are respectively arranged:

[0009] Connecting through-holes, the connecting through-holes are arranged vertically with the connecting surface, and the connecting through-holes of the two connecting surfaces are arranged in one-to-one correspondence and fixed by connecting pieces;

[0010] A lower connecting groove, the lower part of the lower connecting groove is an open end, and a hook body is rotatably arranged in the lower connecting groove;

[0011] An upper connecting groove, the upper part of the upper connecting groove is an open end, and a lifting chain is arranged in the upper connecting groove;

[0012] Structure strengthening components are also respectively arranged on the two connection surfaces. The structure strengthening components include: strengthening bumps arranged on one connection surface, and strengthening grooves arranged on the other connection surface and cooperating with the strengthening bumps.

[0013] Furthermore, the strengthening bumps are arranged in a rectangular shape and arranged vertically. When stretching up and down, the load can be borne through the strengthening bumps and strengthening grooves, which can effectively improve the stability of the housing and also improve the load-bearing capacity of the lifting mechanism to a certain extent.

[0014] Furthermore, two sets of the structure strengthening components are arranged and are respectively symmetrically arranged on both sides of the connection surface. It can effectively provide load-bearing and ensure the stability of the connecting housing.

[0015] Furthermore, when two sets of the structure strengthening components are arranged, strengthening bumps and strengthening grooves are respectively arranged on the same connection surface and are both located at the outer side edge of the strengthening housing. With this structure setting, the processing of the two half-housings is simpler and more convenient, and there is no need to distinguish between the left housing and the right housing, and any two half-housings can be assembled to form the connecting housing.

[0016] Furthermore, the connecting housing is cylindrical, and the upper connecting groove and the lower connecting groove are respectively located on the central axis of the connecting housing. It ensures the stability of lifting heavy objects.

[0017] Furthermore, the lower connecting groove is arranged in a T shape. It can ensure the rotational connection of the hook body and also ensure the tensile strength in the vertical direction.

[0018] Furthermore, a frustum groove is also arranged at the upper end of the lower connecting groove. It can further ensure the strength.

[0019] Furthermore, the upper connecting groove includes a first annular groove, a first convex block, and a second annular groove. A first convex block is arranged in the middle of the first annular groove, and the first convex block is flush with the connection surface. The second annular groove is perpendicular to and communicates with the first annular groove. A first circular ring is arranged in the first annular groove, the first convex block passes through the middle of the circular ring, a second circular ring is arranged in the second annular groove, and the lower end of the second circular ring is sleeved with the upper end of the first circular ring, and the upper part of the second circular ring is exposed outside the upper connecting groove.

[0020] Furthermore, locking through holes are arranged in the first annular groove, and the locking through holes are perpendicular to the connection surface. The two locking through holes are connected by a stud, and the stud is also located in the first circular ring, ensuring the stability of the lifting chain.

[0021] Furthermore, the connecting piece includes any one of a connecting stud and a rivet. Similar rod-shaped connecting pieces can be used for the connection in this application. Generally speaking, the connection using a stud and a nut is more direct and convenient for subsequent maintenance.

[0022] Further, a safety lock is provided at the opening of the hook body, and the safety lock includes:

[0023] A connecting ear, which is fixed on the hook body, and a through hole is formed in the middle of the connecting ear;

[0024] A safety spring piece, the upper end of which is rotatably connected to the connecting ear through a connecting shaft, the lower end of the safety spring piece contacts the hook body, and the safety spring piece covers the opening of the hook body;

[0025] A return spring, which is arranged between the hook body and the safety spring piece and always makes the lower end of the safety spring piece contact the hook body. When an external force acts, the opening is opened, and when the external force is removed, the opening is covered, which can effectively improve safety.

[0026] Further, an arc-shaped notch is further provided at the lower end of the safety spring piece, and the arc-shaped notch is arranged in cooperation with the hook body. This ensures the stable arrangement of the safety spring piece.

[0027] The beneficial technical effects of the present utility model are: By re-setting the connecting shell, the structures of the upper connecting groove and the lower connecting groove are changed, and a structure strengthening component is provided, making the connecting shell more stable. When lifting heavy objects, the force can be evenly dispersed, and at the same time, the service life of the lifting mechanism is ensured. Description of the Drawings

[0028] Figure 1 It is an overall schematic diagram of a lifting mechanism with a strengthened lower hook.

[0029] Figure 2 It is a connection schematic diagram of the connecting shell.

[0030] Figure 3 It is a connection schematic diagram of the connecting shell and the lifting chain.

[0031] Figure 4 It is a schematic diagram of the half shell.

[0032] Among them:

[0033] 1. Chassis, 2. Lifting chain, 3. Connecting shell, 4. Hook body,

[0034] 5. Half shell, 51. Connecting surface, 52. Connecting through hole, 53. Lower connecting groove, 54. Upper connecting groove, 55. Reinforcing convex block, 56. Reinforcing groove, 541. First ring groove, 542. First convex block, 543. Second ring groove, 544. Locking through hole,

[0035] 6. Safety lock, 61. Connecting ear, 62. Safety spring piece, 63. Arc-shaped notch. Detailed Implementation Modes

[0036] In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the specific implementation methods of the utility model are further described in detail below in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the utility model but are not used to limit the scope of the utility model.

[0037] See attached Figures 1-4 The lifting mechanism with a reinforced lower hook shown in the figure comprises: a chassis 1, a lifting chain 2 is arranged in the chassis 1, the lower end of the lifting chain 2 is arranged in a connecting shell 3, and a hook body 4 is rotatably arranged below the connecting shell 3.

[0038] The connecting shell 3 comprises: two half shells 5 which are arranged in a matching manner, and the connecting surfaces 51 of the two half shells 5 are arranged in a vertical direction, and the half shells 5 are respectively provided with:

[0039] The connecting through hole 52 is arranged vertically with the connecting surface 51, and the connecting through holes 52 of the two connecting surfaces 51 are arranged one by one and fixed by a connecting member; the lower connecting groove 53, the lower end of the lower connecting groove 53 is an open end, and the hook body 4 is rotatably arranged in the lower connecting groove 53; the upper connecting groove 54, the upper end of the upper connecting groove 54 is an open end, and the lifting chain 2 is arranged in the upper connecting groove 54;

[0040] Structural reinforcement components are also provided on the two connecting surfaces 51 , respectively. The structural reinforcement components include: a reinforcement protrusion 55 provided on one connecting surface 51 , and a reinforcement groove 56 provided on the other connecting surface 51 and cooperating with the reinforcement protrusion 55 .

[0041] Furthermore, the reinforcing protrusion 55 is arranged in a rectangular shape and is arranged in the vertical direction, so that when the upper and lower parts are stretched, the reinforcing protrusion 55 and the reinforcing groove 56 can bear the load, which can effectively improve the stability of the shell and also improve the load of the lifting mechanism to a certain extent.

[0042] Furthermore, two groups of structural reinforcement components are provided, and are symmetrically arranged on both sides of the connection surface 51 , respectively, so as to effectively provide load bearing and ensure the stability of the connection housing 3 .

[0043] Furthermore, when two groups of structural reinforcement components are provided, reinforcement protrusions 55 and reinforcement grooves 56 are respectively provided on the same connection surface 51, and both are located at the outer side of the reinforcement shell. This structural setting makes the processing of the two half shells 5 simpler and more convenient, and there is no need to distinguish between the left shell and the right shell, and any two half shells 5 can be assembled to form a connection shell 3.

[0044] Furthermore, the connecting shell 3 is cylindrical, and the upper connecting groove 54 and the lower connecting groove 53 are respectively located on the central axis of the connecting shell 3. This ensures the stability of lifting heavy objects.

[0045] Furthermore, the lower connecting groove 53 is arranged in a T shape, which can ensure the rotational connection of the hook body 4 while also ensuring the tensile strength in the vertical direction. Further, a frustum groove is also arranged at the upper end of the lower connecting groove 53, which can better ensure the strength.

[0046] Furthermore, the upper connecting groove 54 includes a first annular groove 541, a first convex block 542, and a second annular groove 543. A first convex block 542 is arranged in the middle of the first annular groove 541, and the first convex block 542 is flush with the connecting surface 51. The second annular groove 543 is perpendicular to and communicated with the first annular groove 541. A first ring is arranged in the first annular groove 541, and the first convex block 542 passes through the middle of the ring. A second ring is arranged in the second annular groove 543, and the lower end of the second ring is sleeved with the upper end of the first ring. The upper part of the second ring is exposed outside the upper connecting groove 54.

[0047] Furthermore, locking through holes 544 are arranged in the first annular groove 541, and the locking through holes 544 are perpendicular to the connecting surface 51. The two locking through holes 544 are connected by a stud, and the stud is also located inside the first ring, ensuring the stability of the lifting chain 2.

[0048] Furthermore, the connecting piece includes any one of a connecting stud and a rivet. Similar rod-shaped connecting pieces can be used for the connection of the present application. Generally speaking, the connection of a stud and a nut is more direct and convenient for subsequent maintenance.

[0049] Furthermore, a safety lock 6 is arranged at the opening of the hook body 4. The safety lock 6 includes: a connecting ear 61, the connecting ear 61 is fixed on the hook body 4, and the middle part of the connecting ear 61 is a through hole; a safety elastic piece 62, the upper end of the safety elastic piece 62 is rotationally connected with the connecting ear 61 through a connecting shaft, the lower end of the safety elastic piece 62 contacts the hook body 4, and the safety elastic piece 62 covers the opening of the hook body 4; a return spring, the return spring is arranged between the hook body 4 and the safety elastic piece 62 and always makes the lower end of the safety elastic piece 62 contact the hook body 4. When an external force acts, the opening is opened, and when the external force is lost, the opening is covered, which can effectively improve safety.

[0050] Furthermore, an arc-shaped notch 63 is also arranged at the lower end of the safety elastic piece 62, and the arc-shaped notch 63 is arranged in cooperation with the hook body 4, ensuring the stable arrangement of the safety elastic piece 62.

[0051] By re-setting the connecting housing 3, the structures of the upper connecting groove 54 and the lower connecting groove 53 are changed, and at the same time, a structure strengthening component is arranged, making the connecting housing 3 more stable, enabling the uniform dispersion of force when lifting heavy objects, and also ensuring the service life of the lifting mechanism.

[0052] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present utility model, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present utility model.

Claims

1. A lifting mechanism with a reinforced lower hook, characterized in that, Comprising: A chassis (1), inside which a hoisting chain (2) is drivably arranged, the lower end of the hoisting chain (2) is arranged inside a connecting housing (3), and a hook body (4) is rotatably arranged below the connecting housing (3); The connecting housing (3) includes: two semi-housings (5) arranged in cooperation, the connecting surfaces (51) of the two semi-housings (5) are both arranged in the vertical direction, and on the semi-housings (5), respectively, are provided: Connecting through-holes (52), the connecting through-holes (52) are arranged vertically with the connecting surface (51), and the connecting through-holes (52) of the two connecting surfaces (51) are arranged in one-to-one correspondence and fixed by connecting members; Lower connecting grooves (53), the lower part of the lower connecting grooves (53) is an open end, and the hook body (4) is rotatably arranged inside the lower connecting grooves (53); Upper connecting grooves (54), the upper part of the upper connecting grooves (54) is an open end, and the hoisting chain (2) is arranged inside the upper connecting grooves (54); On the two connecting surfaces (51), structural strengthening components are respectively arranged, and the structural strengthening components include: strengthening bumps (55) arranged on one connecting surface (51), and strengthening grooves (56) arranged on the other connecting surface (51) and cooperating with the strengthening bumps (55).

2. The lifting mechanism with a reinforced lower hook according to claim 1, wherein: The strengthening bumps (55) are rectangularly arranged and arranged in the vertical direction.

3. The lifting mechanism with a reinforced lower hook according to claim 1, characterized in that: Two sets of the structural strengthening components are arranged and are symmetrically arranged on both sides of the connecting surface (51), and the strengthening bumps (55) and strengthening grooves (56) are respectively arranged on the same connecting surface (51), and are both located at the outer side edges of the strengthening housing.

4. The lifting mechanism with a reinforced lower hook according to claim 1, characterized in that: The connecting housing (3) is cylindrical, and the upper connecting groove (54) and the lower connecting groove (53) are respectively located on the central axis of the connecting housing (3).

5. The lifting mechanism with a strengthened lower lifting hook according to claim 1, characterized in that: The lower connecting groove (53) is arranged in a T shape.

6. The lifting mechanism with a reinforced lower hook according to claim 1, characterized in that: The upper connecting groove (54) includes a first annular groove (541), a first bump (542), and a second annular groove (543). A first bump (542) is arranged in the middle of the first annular groove (541), and the first bump (542) is flush with the connecting surface (51). The second annular groove (543) is perpendicular to and communicates with the first annular groove (541). A first ring is arranged in the first annular groove (541), the first bump (542) passes through the middle of the ring, a second ring is arranged in the second annular groove (543), and the lower end of the second ring is sleeved with the upper end of the first ring, and the upper part of the second ring is exposed outside the upper connecting groove (54).

7. The lifting mechanism with an enhanced lower hook according to claim 6, characterized in that: Locking through-holes (544) are arranged in the first annular groove (541), and the locking through-holes (544) are perpendicular to the connecting surface (51).

8. The lifting mechanism with a reinforced lower lifting hook according to claim 1, characterized in that: The connecting member includes any one of a connecting stud and a rivet.

9. The lifting mechanism with a reinforced lower hook according to claim 1, characterized in that: A safety lock (6) is arranged at the opening of the hook body (4), and the safety lock (6) includes: A connecting ear (61), the connecting ear (61) is fixed on the hook body (4), and the middle part of the connecting ear (61) is a through-hole; Safety shrapnel (62), the upper end of the safety shrapnel (62) is rotatably connected to the connecting ear (61) through a connecting shaft, the lower end of the safety shrapnel (62) contacts the hook body (4), and the safety shrapnel (62) covers the opening of the hook body (4); A return spring, the return spring is arranged between the hook body (4) and the safety shrapnel (62), and always makes the lower end of the safety shrapnel (62) contact the hook body (4).

10. The lifting mechanism with a reinforced lower hook according to claim 9, wherein: An arc-shaped notch (63) is further arranged at the lower end of the safety shrapnel (62), and the arc-shaped notch (63) is arranged in cooperation with the hook body (4).

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