Quick hoisting tool for bell jar

Abstract

The utility model belongs to the field of hoisting clamps, and particularly relates to a bell jar rapid hoisting tool which comprises a support, a hoisting ring and two clamping jaws, the hoisting ring is fixed on the top of the support, the two clamping jaws are symmetrically fixed on two sides of the bottom of the support, the support is of an isosceles triangle structure, and the two clamping jaws are symmetrically fixed on two sides of the bottom of the support. The clamping jaws can synchronously adjust the distance in the same direction or in the opposite direction, and the clamping jaws can bear two symmetrical positions of the top wall of the bell-shaped cover respectively. The clamping time is short, only one person is needed for clamping, compared with an original chain binding mode, the efficiency is greatly improved, and the labor cost is also reduced.

Description

Technical Field

[0001] The utility model belongs to the field of hoisting fixtures, and particularly relates to a quick hoisting tool for a bell-shaped cover. Background Art

[0002] For the safety and dust prevention of couplings of large mechanical equipment, bell-shaped covers are required. Since the bell-shaped covers are made of cast aluminum or cast iron, with large sizes, heavy weights, and frustum shapes, they can only be transported by hoisting during handling. The traditional method of hoisting the bell-shaped cover requires complex bundling of the outer surface of the bell-shaped cover with chains, and then hanging the chains on the hook of a crane for hoisting. Due to the need for bundling, it takes more time, and bundling requires the cooperation of two people, resulting in a relatively high labor cost. Therefore, the traditional hoisting method has low efficiency and high cost. Summary of the Utility Model

[0003] Therefore, the technical problem to be solved by the utility model is to overcome the problems of low efficiency and high cost in the existing method of hoisting the bell-shaped cover.

[0004] To solve the above technical problem, the utility model provides a quick hoisting tool for a bell-shaped cover, which includes a bracket, a lifting ring, and two clamping claws. The lifting ring is fixed at the top of the bracket, and the two clamping claws are symmetrically fixed on both sides of the bottom of the bracket. The bracket is an isosceles triangle structure, the clamping claws can synchronously move towards or away from each other to adjust the distance, and the two clamping claws can jointly act to clamp the bell-shaped cover.

[0005] Preferably, the bracket includes a horizontal rod and two inclined rods, and the horizontal rod and the two inclined rods form an isosceles triangle.

[0006] Preferably, the bracket further includes a vertical rod, the bottom of the vertical rod is fixed in the middle of the horizontal rod, the position of the vertical rod coincides with the central axis position of the bracket, a lifting adjustment part is connected to the vertical rod, the lifting adjustment part can move up and down on the vertical rod, one ends of the two inclined rods are respectively pre-hinged to both sides of the lifting adjustment part, the other ends of the two inclined rods are respectively fixed to the two clamping claws, and two symmetric long holes are respectively arranged near both ends of the horizontal rod, the two long holes can respectively pass through the clamping claws fixed to the bottom of the inclined rods, and the top of the clamping claws is supported on the upper surface of the horizontal rod by a pin shaft.

[0007] Preferably, a channel is formed along the vertical direction of the vertical rod. The lifting and adjusting part includes two connecting pieces, a first bolt and a first nut. The two connecting pieces are respectively located on both sides of the vertical rod. Each connecting piece includes a fixing part and a connecting ear. Through holes are provided in the fixing parts. The first bolt sequentially passes through one connecting piece, the channel and the other connecting piece, and the tail of the first bolt is threadedly connected to the first nut.

[0008] Preferably, the connecting ear is provided with a through hole, and the top of the inclined rod is provided with a through hole. The through hole of the connecting ear and the through hole of the inclined rod can be penetrated by the same second bolt, and the tail of the second bolt can be threaded with a second nut.

[0009] Preferably, the claw includes a connecting rod and a clamping part. The top of the connecting rod passes through the long hole and is fixed to the inclined rod, and the clamping part is fixed to the bottom of the connecting rod.

[0010] Preferably, the clamping part includes a supporting plate, and the supporting plate supports at two symmetric positions on the top wall of the bell-shaped cover.

[0011] Preferably, a retaining plate is fixed to each side of the horizontal rod, and the two ends of the pin shaft can respectively abut against the inner sides of the two retaining plates.

[0012] The technical solution of the present utility model has the following beneficial effects:

[0013] Before the bell-shaped cover needs to be hoisted by the present utility model, it is necessary to first adjust the distance value between the two claws to be less than or equal to the diameter of the opening at the top of the bell-shaped cover. Then, insert the two claws into the opening of the bell-shaped cover, and then increase the distance between the two claws by means of synchronous deviation adjustment. Slowly move the two claws to the positions below the two symmetric positions on the top wall of the bell-shaped cover. Finally, fix the positions of the two claws, and finally clamp the tooling on the bell-shaped cover. Then, just hang the lifting ring on the hook of the crane. When the hoisting is completed, the distance between the two claws can be synchronously reduced, so that the claws are moved away from the top wall of the bell-shaped cover in the horizontal direction, so that the claws can be detached from the bell-shaped cover. Finally, lift the bracket upward. The present utility model can be directly clamped on the bell-shaped cover, and then the bell-shaped cover can be hoisted by hoisting this tooling. Moreover, the clamping time is short, and only one person is needed for clamping. Compared with the original method of bundling with a chain, the efficiency is greatly improved and the labor cost is also reduced. Description of the Drawings

[0014] To more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0015] Description of reference numerals: 1, bracket; 11, horizontal rod; 111, long hole; 12, diagonal rod; 13, vertical rod; 131, channel; 2, lifting ring; 3, clamping jaw; 31, connecting rod; 32, clamping part; 321, supporting plate; 4, lifting and adjusting part; 41, connecting piece; 411, fixing part; 412, connecting ear; 42, first bolt; 43, first nut; 5, pin shaft; 6, second bolt; 7, second nut; 8, enclosing plate; 9, bell-shaped cover.

[0016] Figure 1 Schematic diagram of the present utility model clamped on the bell-shaped cover;

[0017] Figure 2 Three-dimensional sectional view of the present utility model;

[0018] Figure 3 Overall schematic diagram of the present utility model. Specific embodiments

[0019] The following will clearly and completely describe the technical solutions of the present utility model in conjunction with the drawings. Obviously, the described embodiments are some embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the protection scope of the present utility model.

[0020] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0021] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0022] In addition, the technical features involved in different embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0023] The present utility model provides a quick hoisting tooling for a bell-shaped cover, which includes a bracket 1, a lifting ring 2, and two claws 3. The lifting ring 2 is fixed at the top of the bracket 1, and the two claws 3 are symmetrically fixed on both sides of the bottom of the bracket 1. The bracket 1 is an isosceles triangle structure, and the claws 3 can synchronously move towards or away from each other to adjust the spacing. The two claws 3 can act together to clamp the bell-shaped cover 9.

[0024] The working principle of the present utility model: Before hoisting the bell-shaped cover 9, since the top wall of the bell-shaped cover 9 is annular and extends towards the center of the circle, when using the claws 3 to clamp the bell-shaped cover 9, it is necessary to first adjust the spacing value between the two claws 3 to be less than or equal to the diameter of the top opening of the bell-shaped cover 9. Then, insert the two claws 3 into the opening of the bell-shaped cover 9, and then increase the spacing between the two claws 3 by synchronously moving away from each other, slowly move the two claws 3 to the positions below the two symmetrical positions on the top wall of the bell-shaped cover 9, and finally fix the positions of the two claws 3. Finally, the tooling is clamped on the bell-shaped cover, and then just hang the lifting ring 2 on the hook of the crane. After the hoisting is completed, the spacing between the two claws 3 can be synchronously reduced, so that the claws 3 are horizontally away from the top wall of the bell-shaped cover 9, so that the claws 3 can be detached from the bell-shaped cover 9, and finally lift the bracket 1 upward.

[0025] Adjusting the spacing between the two claws 3 not only facilitates the clamping and unloading of the bell-shaped cover 9 by the tooling, but also can adapt to clamping bell-shaped covers 9 with different diameters. One tooling can clamp all sizes and specifications of bell-shaped covers 9, saving costs and reducing the storage pressure.

[0026] In order to maintain the stability of the connection of the bracket 1, prevent the bracket 1 from disconnecting or falling apart when hoisting and bearing force, and ensure the safety of hoisting. The bracket 1 includes a horizontal rod 11 and two inclined rods 12, and the horizontal rod 11 and the two inclined rods 12 form an isosceles triangle.

[0027] In order to facilitate the synchronous distance adjustment of the two claws 3 when clamping the bell-shaped cover, the utility model further includes a lifting adjustment part 4. The bracket 1 further includes a vertical rod 13. The bottom of the vertical rod 13 is fixed to the middle of the horizontal rod 11. The position of the vertical rod 13 coincides with the central axis position of the bracket 1. A lifting adjustment part 4 is connected to the vertical rod 13. The lifting adjustment part 4 can be adjusted up and down on the vertical rod 13. One end of each of the two inclined rods 12 is pre-hinged to both sides of the lifting adjustment part 4 respectively. The other end of each of the two inclined rods 12 is fixed to the two claws 3 respectively. Symmetrically arranged long holes 111 are respectively provided near both ends of the horizontal rod 11. The two long holes 111 can respectively pass through the claws 3 fixed to the bottom of the inclined rods 12, and the top of the claw 3 is supported on the upper surface of the horizontal rod 11 through a pin shaft 5. In the initial state, one end of each of the two inclined rods 12 is pre-hinged to the lifting adjustment part 4. When the lifting adjustment part 4 is adjusted downward and fixed, the two inclined rods 12 rotate outward synchronously and with the same amplitude with the hinge joint with the lifting adjustment part 4 as the rotation center, thereby increasing the distance between the two claws 3. Then, it is necessary to fix the hinge joint of the inclined rod 12 to prevent the inclined rod 12 from rotating, so as to change the distance between the two claws 3. After the two claws 3 increase the distance, it is convenient for the claws 3 to extend under the top wall of the bell-shaped cover 9; when it is necessary to unload the tooling, the fixed hinge joint of the inclined rod 12 can be loosened, and then the lifting adjustment part 4 is adjusted upward and fixed, so that the two inclined rods 12 rotate inward synchronously and with the same amplitude, thereby reducing the distance between the two claws 3.

[0028] The pin shaft 5 can increase a force for supporting the claw 3 on the horizontal rod 11, and increase the connection force between the bottom end of the inclined rod 12 and the claw 3 and the horizontal rod 11.

[0029] Specifically, the specific structural design of the lifting adjustment part 4 that can be lifted and lowered on the vertical rod 13 is as follows: a channel 131 is opened along the vertical direction of the vertical rod 13. The lifting adjustment part 4 includes two connecting pieces 41, a first bolt 42 and a first nut 43. The two connecting pieces 41 are respectively located on both sides of the vertical rod 13. The connecting piece 41 includes a fixing part 411 and a connecting ear 412. Through holes are provided in the fixing parts 411. The first bolt 42 sequentially passes through one connecting piece 41, the channel 131 and the other connecting piece 41. The tail of the first bolt 42 is threadedly connected to the first nut 43. When it is necessary to adjust the height position of the lifting adjustment part 4, only need to loosen the first nut 43, manually push the two connecting pieces 41, the first bolt 42 and the first nut 43 to the desired position, and then tighten the first nut 43.

[0030] Specifically, the connection method at the hinge is as follows: The connecting ear 412 is provided with a through hole, and the top of the inclined rod 12 is provided with a through hole. The through holes of the connecting ear 412 and the inclined rod 12 can be penetrated by the same second bolt 6, and the tail of the second bolt 6 can be threaded with a second nut 7. After the end face of the second nut 7 presses tightly against the inclined rod 12, the inclined rod 12 and the lifting adjustment part 4 are fixed and cannot rotate any more, that is, the horizontal distance between the two claws 3 cannot be adjusted. When the end face of the second nut 7 is away from the inclined rod 12, the inclined rod 12 and the lifting adjustment part 4 become a hinge relationship again, and the inclined rod 12 can rotate again.

[0031] Specifically, the claw 3 includes a connecting rod 31 and a clamping part 32. The top of the connecting rod 31 passes through the long hole 111 and is fixed to the inclined rod 12, and the clamping part 32 is fixed to the bottom of the connecting rod 31. The clamping part 32 can clamp the top wall of the bell-shaped cover 9. The clamping part 32 includes a supporting plate 321, and the supporting plate 321 supports at two symmetric positions on the top wall of the bell-shaped cover 9.

[0032] A retaining plate 8 is fixed to each side of the horizontal rod 11, and both ends of the pin shaft 5 can abut against the inner sides of the two retaining plates 8 respectively. When adjusting the angle of the inclined rod 12 (adjusting the distance between the two claws 3), the pin shaft 5 and the retaining plate 8 cooperate with each other to provide guidance for the movement of the two inclined rods 12.

[0033] Obviously, the above embodiments are only examples given for clear illustration and not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or variations can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. And the obvious changes or variations derived therefrom are still within the protection scope of the present invention.

Claims

1. A bell jar quick lifting tool, characterized in that: The invention comprises a bracket (1), a lifting ring (2) and two clamping claws (3), wherein the lifting ring (2) is fixed on the top of the bracket (1), and the two clamping claws (3) are symmetrically fixed on both sides of the bottom of the bracket (1); the bracket (1) is an isosceles triangle structure, and the clamping claws (3) can adjust the spacing synchronously by moving toward or away from each other, and the clamping claws (3) can work together to clamp the bell-shaped cover (9).

2. The bell jar quick lifting tool according to claim 1, characterized in that: The support (1) comprises a horizontal rod (11) and two oblique rods (12), and the horizontal rod (11) and the two oblique rods (12) form an isosceles triangle.

3. The bell jar quick lifting tool according to claim 2, characterized in that: The bracket (1) further comprises a vertical rod (13), the bottom of which is fixed to the middle of the horizontal rod (11), the position of which coincides with the position of the central axis of the bracket (1), a lifting and lowering adjustment portion (4) is connected to the vertical rod (13), and the lifting and lowering adjustment portion (4) can be lifted and lowered on the vertical rod (13), one end of the two oblique rods (12) is pre-hinged to the two sides of the lifting and lowering adjustment portion (4), the other ends of the two oblique rods (12) are respectively fixed to the two claws (3), and the horizontal rod (11) is provided with two symmetrical long holes (111) near both ends, the two long holes (111) can respectively pass through the claws (3) fixed to the bottom of the oblique rod (12), and the claws (3) are supported on the upper surface of the horizontal rod (11) at the top through a pin shaft (5).

4. The bell jar quick lifting tool according to claim 3, characterized in that: The vertical rod (13) is provided with a channel (131) along its vertical direction. The lifting and lowering adjusting part (4) comprises two connecting pieces (41), a first bolt (42) and a first nut (43). The two connecting pieces (41) are respectively located on both sides of the vertical rod (13). The connecting pieces (41) comprise a fixing part (411) and a connecting ear (412). The fixing part (411) is provided with a through hole. The first bolt (42) passes through one connecting piece (41), the channel (131) and the other connecting piece (41) in sequence. The tail of the first bolt (42) is threadedly connected to the first nut (43).

5. The bell jar quick lifting tool according to claim 4, characterized in that: The connecting ear (412) is provided with a through hole, and the top of the oblique rod (12) is provided with a through hole. The through hole of the connecting ear (412) and the through hole of the oblique rod (12) can be penetrated by the same second bolt (6), and a second nut (7) can be threaded on the tail of the second bolt (6).

6. The bell jar quick lifting tool according to claim 4, characterized in that: The clamping claw (3) comprises a connecting rod (31) and a clamping portion (32); the top of the connecting rod (31) passes through a long hole (111) and is fixed to the oblique rod (12); and the clamping portion (32) is fixed to the bottom of the connecting rod (31).

7. The bell jar quick lifting tool according to claim 6, characterized in that: The clamping portion (32) comprises a supporting plate (321), and the supporting plate (321) is supported at two symmetrical positions on the top wall of the bell-shaped jar.

8. A bell jar quick lifting tool according to any one of claims 3 to 6, characterized in that: A panel (8) is fixed to each of the two sides of the horizontal rod (11), and the two ends of the pin shaft (5) can respectively abut against the inner side surfaces of the two panels (8).

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