Universal threaded rotary lifting appliance

Abstract

The utility model relates to the field of lifting equipment, in particular to a universal threaded rotary lifting appliance which comprises a lifting ring connected with a lifting hook, a connecting seat and a lifting seat, the connecting seat is connected with the lifting ring, a connecting groove is formed in the lifting seat, and the connecting seat is rotationally connected with the lifting seat by being embedded in the connecting groove. A waterproof groove is formed in the top of the side wall of the connecting groove, a first drainage hole penetrating through the side wall of the connecting groove is formed in the side wall of the waterproof groove, and a water removal structure is arranged on the connecting base; the water removing structure comprises a fixing ring arranged on the connecting base and a water scraping piece arranged on the fixing ring and used for scraping water drops on the side wall of the waterproof groove. The water removal structure is arranged on the connecting base, and the waterproof groove and the drainage hole are formed in the side wall of the connecting groove, so that the problem of oxidation corrosion of the side wall of the connecting groove is solved, and the service life of the universal threaded rotary lifting appliance is prolonged.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of hoisting equipment, in particular to a universal thread rotating lifting appliance. BACKGROUND

[0002] The universal thread rotating lifting appliance is a tool commonly used in hoisting and transportation, which can realize high-degree rotation of hoisted and transported objects in the axial direction. The ordinary thread lifting appliance is usually pulled by a ring-shaped steel wire rope. Due to the interference of the steel wire rope, the thread lifting appliance cannot rotate circumferentially. During hoisting and transportation, the transported objects will deviate and rotate with the movement of the conveying equipment. Due to the interference of the steel wire rope, the lifting appliance cannot complete complete circumferential rotation. The force generated after deviation and rotation will act on the steel wire rope connected to the lifting appliance, causing the steel wire rope to bear a large stress, and the ring-shaped steel wire rope is prone to metal fatigue damage under repeated impact, affecting the safety of hoisting. The universal thread rotating lifting appliance can well solve the safety problem of ordinary thread lifting appliances during hoisting.

[0003] The universal thread rotating lifting appliance in the related art is composed of a connecting lifting ring, a connecting seat, a steel ball, a lifting seat and a threaded connecting rod. The connecting lifting ring is sleeved with the connecting seat, the lifting seat is internally provided with a ball structure, the connecting seat and the lifting seat are rotationally connected through the ball structure, the threaded connecting rod is fixedly connected below the lifting seat, and the threaded connecting rod is connected to a workpiece to be hoisted. When the workpiece deviates and rotates with the movement of the conveying equipment, the lifting seat can rotate axially around the connecting seat.

[0004] The universal thread rotating lifting appliance in the related art is rotationally connected with the connecting seat in the connecting groove of the lifting seat. A gap is generated between the connecting seat and the lifting seat. When the universal thread rotating lifting appliance is applied in outdoor rain or humid environment, water will enter the connecting groove through the gap between the connecting seat and the lifting seat. The water droplets are long-term retained in the connecting groove, the surface of the connecting groove is oxidized and corroded, and the service life of the universal thread rotating lifting appliance is reduced. CONTENT OF THE INVENTION

[0005] In order to solve the problem that the universal thread rotating lifting appliance used in outdoor and humid environment is oxidized and corroded on the surface of the lifting seat and the connecting groove due to the long-term retention of liquid in the connecting groove, the present application provides a universal thread rotating lifting appliance with a drainage hole, a waterproof groove and a water removal structure.

[0006] The universal thread rotating lifting appliance provided by the present application adopts the following technical scheme:

[0007] The utility model provides a universal thread rotating lifting appliance, including the ring, the connecting seat and the lifting seat of hook connection, the connecting seat is connected with the ring, is equipped with the connecting groove on the lifting seat, the connecting seat is rotatably connected with the lifting seat through being embedded in the connecting groove, its characterized in be equipped with the waterproof groove on the top of the side wall of connecting groove, be equipped with the first drain hole of penetrating the side wall of connecting groove on the side wall of waterproof groove, be equipped with the water removal structure on the connecting seat, and the water removal structure includes the fixed ring of setting up on the connecting seat and the wiper blade for scraping the water drop on the side wall of waterproof groove of setting up on the fixed ring.

[0008] By adopting the above technical scheme, when the universal thread rotating lifting appliance is used in outdoor rainy weather or humid environment, water droplets will remain on the side wall of the waterproof groove. The fixed ring fixes the wiper blade on the connecting seat, and as the lifting seat rotates, the wiper blade scrapes the water droplets remaining on the side wall of the waterproof groove. The scraped water droplets gather together during the scraping process and flow down the side wall of the waterproof groove and finally drain out of the drain hole provided at the bottom of the side wall of the waterproof groove. The problem of oxidation and corrosion of the universal thread rotating lifting appliance caused by the water droplets remaining on the side wall of the waterproof groove is improved, and the service life of the universal thread rotating lifting appliance is prolonged.

[0009] Optionally, the wiper blade includes a support portion and a wiper portion integrally formed with the support portion, and the wiper portion is in sliding contact with the side wall of the waterproof groove.

[0010] By adopting the above technical scheme, the support portion of the wiper blade supports the entire wiper blade, ensuring that the wiper portion can be in contact with the inner wall of the waterproof groove. When the wiper portion rotates relative to the waterproof groove, the water droplets scraped by the wiper portion gather together and flow down the side wall of the waterproof groove to the drain hole under the action of gravity, achieving the effect of removing the water droplets from the inner wall of the waterproof groove.

[0011] Optionally, the thickness of the wiper portion gradually decreases from the side close to the support portion to the side away from the support portion.

[0012] By adopting the above technical scheme, since the side of the wiper portion away from the support portion is thinner than the side close to the support portion, the side of the wiper portion in contact with the waterproof groove has better elastic deformation capability. The width of the wiper portion is wider than the distance from the connecting seat to the side wall of the waterproof groove. When the wiper portion rotates relative to the waterproof groove, the area of the wiper portion in sliding contact with the side wall of the waterproof groove after elastic deformation is larger, the scraping force of the wiper portion on the water droplets on the waterproof groove is greater, and the wiper portion can more easily scrape the water droplets remaining on the side wall of the waterproof groove.

[0013] Optionally, the top edge of the side wall of the waterproof groove is flush with the upper edge of the wiper, and the bottom edge of the waterproof groove is flush with the lower edge of the wiper.

[0014] By adopting the above technical scheme, it is ensured that when the wiper rotates relative to the inner wall of the waterproof groove, the water remaining on the side wall of the waterproof groove can be wiped off, and the water drops on the side wall of the waterproof groove are removed in a larger range, so that the water removal of the wiper during rotation becomes more effective.

[0015] Optionally, the bottom surface of the waterproof groove is gradually inclined downward from the side wall of the waterproof groove to the side wall of the waterproof groove.

[0016] By adopting the above technical scheme, when the wiper wipes off the water from the side wall of the waterproof groove, the water will drip on the bottom of the waterproof groove due to gravity, and because the bottom surface of the waterproof groove is inclined to the side wall of the waterproof groove, the inclined bottom surface better guides the wiped-off water to flow to the drain hole and drain from the drain hole.

[0017] Optionally, the first drain hole is inclined downward and arranged at the bottom of the side wall of the waterproof groove.

[0018] By adopting the above technical scheme, the first drain hole is arranged at the bottom of the waterproof groove to ensure that the water drops on the side wall of the waterproof groove can flow out of the drain hole when the water drops are wiped off and drip on the bottom of the waterproof groove, and the inclined downward arrangement of the drain hole enables the water to flow out of the first drain hole more quickly and effectively under the action of gravity.

[0019] Optionally, the second drain hole is arranged at the bottom of the connecting groove and penetrates the connecting groove.

[0020] By adopting the above technical scheme, when the universal threaded lifting appliance is used outdoors and encounters rainy days, rainwater enters the waterproof groove through the gap between the connecting seat and the lifting seat, overflows from the waterproof groove and flows to the bottom of the connecting groove, and the second drain hole is arranged at the bottom of the connecting groove and penetrates the connecting groove, so as to ensure that the rainwater flowing into the connecting groove can flow out of the second drain hole, improve the oxidation corrosion of the side wall of the connecting groove, and prolong the service life of the universal threaded lifting appliance.

[0021] Optionally, the bottom surface of the connecting groove is inclined downward from the center of the bottom surface to the periphery of the bottom surface, and the second drain hole is arranged on the inclined surface of the inclined bottom surface of the connecting groove.

[0022] By adopting the above technical scheme, when there is a lot of rainwater, the rainwater will overflow from the waterproof groove and flow to the inclined surface of the periphery of the bottom surface of the connecting groove, and the second drain hole is arranged on the inclined surface of the inclined bottom surface of the connecting groove, so that the rainwater can flow out of the second drain hole smoothly under the action of gravity.

[0023] Optionally, a ball structure is arranged between the hanging seat and the connecting seat, the ball structure comprising a rotating groove opened in the side wall of the connecting groove and a ball embedded in the rotating groove and rolling along the rotating groove.

[0024] By adopting the above technical scheme, when the hanging seat and the connecting seat rotate relative to each other, the ball rotates in the rotating groove, and the ball itself also rotates, so that the connecting seat and the hanging seat rotate relative to each other through the ball structure, ensuring smooth rotation between the hanging seat and the connecting seat, reducing friction between the hanging seat and the connecting seat, and prolonging the service life of the universal threaded rotary lifting appliance.

[0025] In summary, the present application has at least one of the following beneficial technical effects:

[0026] 1. The universal threaded rotary lifting appliance of the present application is provided with a water removal structure on the connecting seat, and a waterproof groove and a drainage hole are opened in the side wall of the connecting groove. When the universal threaded rotary lifting appliance is used in outdoor rainy weather and humid environment, the connecting seat and the hanging seat rotate relative to each other, the water removal structure rotates with the connecting seat, effectively removing the water droplets accumulated on the side wall of the waterproof groove and discharging them through the first drainage hole, solving the problem that the universal threaded rotary lifting appliance is oxidized and corroded when used in rainy weather and humid environment, and better prolonging the service life of the universal threaded rotary lifting appliance.

[0027] 2. When the universal threaded rotary lifting appliance is used in outdoor rainy weather, more rainwater flows into the connecting groove. The universal threaded rotary lifting appliance of the present application is provided with a second drainage hole at the bottom of the connecting groove, which can more effectively discharge the water entering the connecting groove. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 is a structural schematic view of the universal threaded rotary lifting appliance;

[0029] Figure 2 is an exploded view of the connecting seat and the hanging seat;

[0030] Figure 3 is a sectional view of the connecting seat and the hanging seat;

[0031] Figure 4 is a sectional view of the water removal structure;

[0032] Figure 5 is Figure 4 is an enlarged view of part A in FIG. 8;

[0033] Explanation of reference signs: 1, lifting ring; 2, connecting seat; 21, connecting lug; 22, water removal structure; 221, fixing ring; 222, wiper blade; 2221, support part; 2222, wiping part; 3, lifting seat; 31, connecting groove; 311, waterproof groove; 312, first drainage hole; 313, second drainage hole; 4, ball structure; 41, rotating groove; 42, ball. DETAILED DESCRIPTION

[0034] The following will be described in detail in combination with the accompanying drawings. Figures 1-4 The application is further described in detail.

[0035] Referring to Figure 1 , the application discloses a universal thread rotating lifting appliance, which comprises a lifting ring 1, a connecting seat 2 and a lifting seat 3. The top of the connecting seat 2 is provided with a connecting lug 21, and the lifting ring 1 is connected with the connecting seat 2 through the connecting lug 21. During lifting, the bottom of the lifting seat 3 is connected with the workpiece to be lifted, and the lifting hook on the lifting truck is connected with the lifting ring 1. The workpiece is lifted and moved by the lifting truck through the universal thread rotating lifting appliance.

[0036] Referring to Figure 2 With Figure 3 , the lifting seat 3 is provided with a connecting groove 31, and the bottom of the connecting seat 2 is embedded in the connecting groove 31 and rotationally connected with the lifting seat 3. A ball structure 4 is arranged between the lifting seat 3 and the connecting seat 2. The ball structure 4 comprises a rotating groove 41 and a plurality of balls 42 embedded in the rotating groove 41. The rotating groove 41 is arranged in the side wall of the connecting groove 31, and the size of the rotating groove 41 is matched with the size of the balls 42, so that the balls 42 can smoothly roll in the rotating groove 41. The ball structure 4 is arranged between the connecting seat 2 and the lifting seat 3. When the connecting seat 2 and the lifting seat 3 rotate relative to each other, the balls 42 roll along the rotating groove 41, and the rotation between the connecting seat 2 and the lifting seat 3 becomes more smooth.

[0037] The side wall of the connecting groove 31 is provided with a waterproof groove 311 located above the rotating groove 41. The bottom surface of the waterproof groove 311 is gradually inclined downward from the side wall away from the waterproof groove 311 to the side wall close to the waterproof groove 311. The bottom of the side wall of the waterproof groove 311 is provided with a first drainage hole 312 penetrating through the side wall of the connecting groove 31. The first drainage hole 312 is inclined downward and connected to the outer side wall of the lifting seat 3. The number of the first drainage hole 312 can be set to be multiple. In this embodiment, the number of the first drainage hole 312 is set to be six.

[0038] The bottom of the connecting groove 31 is provided with a downwardly inclined surface from the center of the bottom to the periphery. When the rainwater in the connecting groove 31 overflows from the waterproof groove 311, the rainwater will flow to the periphery of the bottom of the connecting groove due to gravity and flow downward along the inclined surface of the periphery of the bottom of the connecting groove. The second drain hole 313 is provided with a plurality of holes. In the embodiment, the second drain hole 313 is uniformly provided on the inclined surface of the bottom of the connecting groove 31 and vertically penetrates the entire connecting groove 31.

[0039] With reference to Figure 4 The connecting seat 2 is provided with a water removal structure 22, which includes a fixed ring 221 fixedly connected to the connecting seat 2 by bolts and a wiper blade 222 provided on the fixed ring 221 and used for scraping water droplets on the side wall of the waterproof groove 311. The number of wiper blades 222 can be set to be multiple. In the embodiment, the number of wiper blades 222 is set to be four. The height of the wiper blade 222 is the same as that of the fixed ring 221, and the wiper blade 222 is uniformly distributed on the fixed ring 221 and integrally formed with the fixed ring 221. The wiper blade 222 is fixed to the connecting seat 2 by the fixed ring 221. The waterproof groove 311 is provided on the side wall of the connecting groove 31. When the connecting seat 2 and the connecting groove 31 rotate relative to each other, the wiper blade 222 is in sliding contact with the side wall of the waterproof groove 311 to scrape the water droplets on the side wall of the waterproof groove 311.

[0040] With reference to Figure 5 The wiper blade 222 includes a support portion 2221 and a wiper portion 2222 integrally formed with the support portion 2221. The wiper portion 2222 is in sliding contact with the side wall of the waterproof groove 311. The upper edge of the wiper portion 2222 is flush with the top edge of the side wall of the waterproof groove 311, and the lower edge of the wiper portion 2222 is flush with the bottom edge of the waterproof groove 311. The thickness of the wiper portion 2222 gradually decreases from the side close to the support portion 2221 to the side away from the support portion 2221. In the embodiment, the cross section of the wiper portion 2222 is triangular. Since the width of the wiper blade 222 is wider than the width of the connecting groove 31 to the side wall of the waterproof groove 311, the wiper portion 2222 elastically deforms to be in surface contact with the side wall of the waterproof groove 311 during the sliding contact of the tip of the wiper portion 2222 with the side wall of the waterproof groove 311, thereby scraping the water droplets on the side wall of the waterproof groove 311.

[0041] When the hoisting and transporting is carried out in a humid environment, the workpiece will be deviated and rotated with the movement of the conveying device due to the effect of inertia, the hanger 3 rotates around the connecting seat 2, at this time, the water removal structure 22 sleeved on the connecting seat 2 and the waterproof groove 311 in the connecting groove 31 also rotate relatively, the water removal structure 22 includes a wiper 222, the wiper part 222 on the wiper 222 slides with the side wall of the waterproof groove 311, and the water droplets on the side wall of the waterproof groove 311 are scraped off in the sliding process, the water droplets are converged in the scraping process, and finally the converged water droplets flow downward along the side wall of the waterproof groove 311 to the bottom of the side wall of the waterproof groove 311 and flow out from the first drain hole 312 under the action of gravity. By setting the water removal structure 22 and the waterproof groove 311, the problem that water droplets are retained on the side wall of the connecting groove 31 when the universal threaded rotating lifting appliance is used in rainy and humid environments is effectively solved. At the same time, the first drain hole 312 drains the scraped water, solves the problem that the water droplets retained in the connecting groove 31 will cause oxidation and corrosion of the side wall of the connecting groove 31, and improves the service life of the universal threaded rotating lifting appliance.

[0042] When the hoisting and transporting is carried out in an outdoor environment with more rain, rainwater enters the waterproof groove 311 from the gap between the hanger 3 and the connecting seat 2, and flows to the bottom of the connecting groove 31 after overflowing from the waterproof groove 311, and flows out from the second drain hole 313. By setting the second drain hole 313 at the bottom of the connecting groove 31, the rainwater flowing into the connecting groove 31 can also be quickly drained when the universal threaded rotating lifting appliance is used in an environment with more rain.

[0043] The above are preferred embodiments of the present application, and are not intended to limit the protection scope of the present application, therefore: any equivalent changes made on the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A universal thread rotating lifting device, comprising a lifting ring (1) connected with a lifting hook, a connecting seat (2) and a lifting seat (3), the connecting seat (2) is connected with the lifting ring (1), the lifting seat (3) is provided with a connecting groove (31), and the connecting seat (2) is rotationally connected with the lifting seat (3) by being embedded in the connecting groove (31), characterized in that: The side wall of the connecting groove (31) is provided with a waterproof groove (311) at the top, the side wall of the waterproof groove (311) is provided with a first drain hole (312) penetrating the side wall of the connecting groove (31), the connecting seat (2) is provided with a water removal structure (22), and the water removal structure (22) comprises a fixed ring (221) arranged on the connecting seat (2) and a wiper blade (222) arranged on the fixed ring (221) and used for scraping water droplets on the side wall of the waterproof groove (311). ​ 2. A universal threaded swivel hanger according to claim 1, characterized in that: The wiper blade (222) comprises a supporting portion (2221) and a wiper portion (2222) integrally formed with the supporting portion (2221), and the wiper portion (2222) is in sliding contact with the side wall of the waterproof groove (311).

3. A universal threaded swivel hanger according to claim 2, characterized in that: The thickness of the wiper portion (2222) gradually decreases from the side close to the supporting portion (2221) to the side away from the supporting portion (2221).

4. A universal threaded swivel hanger according to claim 2, characterized in that: The top edge of the side wall of the waterproof groove (311) is flush with the upper edge of the wiper portion (2222), and the bottom edge of the waterproof groove (311) is flush with the lower edge of the wiper portion (2222).

5. A universal threaded swivel hanger according to claim 4, characterized in that: The bottom surface of the waterproof groove (311) is gradually inclined downward from the side wall of the waterproof groove (311) to the side wall of the waterproof groove (311).

6. A universal threaded swivel hanger as defined in claim 1 wherein: The first drain hole (312) is inclined downward and arranged at the bottom of the side wall of the waterproof groove (311).

7. A universal threaded swivel hanger as defined in claim 1 wherein: The bottom of the connecting groove (31) is provided with a second drain hole (313) penetrating the connecting groove (31).

8. A universal threaded swivel hanger according to claim 7, characterized in that: The bottom surface of the connecting groove (31) is inclined downward from the center of the bottom surface to the periphery of the bottom surface, and the second drain hole (313) is arranged on the inclined surface of the bottom surface of the connecting groove (31).

9. A universal threaded swivel hanger as defined in claim 1 wherein: The hanging seat (3) and the connecting seat (2) are provided with a ball structure (4), the ball structure (4) comprises a rotating groove (41) arranged in the side wall of the connecting groove (31) and a ball (42) embedded in the rotating groove (41) and rolling along the rotating groove (41).

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