Ratchet wrench for dismounting grab bucket

Abstract

The utility model discloses a ratchet wrench for dismounting a grab bucket, which belongs to the technical field of ratchet wrenches and comprises a ratchet wrench, the ratchet wrench comprises a wabbler and a handle, a threaded hole is arranged at the end of the handle, a threaded rod is arranged in the threaded hole, a bearing is arranged on the threaded rod, an inner supporting piece is arranged on the bearing, and a fixing ring is arranged at the end of the handle. According to the ratchet wrench, the technical problem that in the prior art, when the ratchet wrench is used, a plurality of ratchet wrenches and a plurality of cross sleeves matched with the ratchet wrenches need to be carried, and inconvenience is caused is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of ratchet spanner, specifically to a ratchet spanner for disassembling grab bucket. BACKGROUND

[0002] Since entering 2024, the berthing rate of ships in the Ma waist operation area has shown an upward trend compared with previous years, especially the bulk cargo Cape ships and non-ferrous mineral ships. The operation characteristics require the gantry crane to frequently lift and lower the machinery into the cabin for operation, which means that the grab bucket installation hook must be frequently disassembled. However, due to the fastening reason, the grab bucket connecting ring is very easy to jam and difficult to disassemble, which consumes a lot of time. Therefore, a ratchet spanner is needed to rotate the ring to unscrew it and achieve the disassembly of the grab bucket. The main part of the ratchet spanner is the wrench head and the handle. The wrench head is rotated by the handle to rotate the ring. Since the grab bucket is a ship operation equipment on the sea, it is easily rusted by seawater and tide, and the worker has to work hard to rotate the handle of the ratchet spanner. The existing technology installs a cross sleeve at the tail end of the ratchet spanner, which can make the rotation of the handle more relaxed by holding the cross sleeve and rotating it. However, the end of the handle in the prior art is a fixed structure, which can only adapt to a specific size of cross sleeve. If a larger cross sleeve is needed to rotate the handle more easily, only the ratchet spanner matched with the cross sleeve can be replaced, which requires the worker to carry more ratchet spanners and cross sleeves of different sizes, which is very inconvenient. SUMMARY

[0003] In order to solve the technical problems mentioned in the background art, the utility model provides a ratchet spanner for disassembling a grab bucket, which adopts the following technical solutions:

[0004] The ratchet spanner comprises a wrench head and a handle. A threaded hole is formed in the end of the handle. A threaded rod is arranged in the threaded hole. A bearing is arranged on the threaded rod. An inner support is arranged on the bearing. A fixed ring is arranged on the end of the handle. One end of the inner support is connected with the fixed ring.

[0005] Further, the inner support comprises a first connecting rod hinged to the bearing and a second connecting rod hinged to the fixed ring. An arc-shaped inner support plate is hinged to the first connecting rod. The arc-shaped inner support plate is hinged to the second connecting rod.

[0006] Further, a rotating nut is arranged on the threaded rod.

[0007] Further, a cross sleeve is arranged on the outer side of the arc-shaped inner support plate. The cross sleeve comprises a sleeve. A handle is arranged on the upper and lower sides of the sleeve.

[0008] The utility model discloses a following advantage: through the inner bracing piece of setting up in handle tail end, rotates the expansion or the shrink of the outer of inner bracing piece of driving screw rod, makes handle tail end can fix various size type cross socket, when using the ratchet spanner of worker, only needs to carry a ratchet spanner, can match multiple type cross socket use, is very convenient. BRIEF DESCRIPTION OF DRAWINGS

[0009] Figure 1 It is the three-dimensional of the utility model Figure 1 ;

[0010] Figure 2 It is the three-dimensional of the utility model Figure 1 The partial close -up view of a for the utility model

[0011] Figure 3 It is the three-dimensional of the utility model Figure 2 ;

[0012] Figure 4 It is the three-dimensional of the utility model cross socket in ratchet spanner on display.

[0013] Drawing: 1 ratchet spanner, 2 plum blossom head, 3 handle, 4 threaded hole, 5 screw rod, 6 bearing, 7 fixed ring, 8 first connecting rod, 9 second connecting rod, 10 arc inner bracing plate, 11 rotating nut, 12 cross socket, 13 sleeve, 14 grip rod. DETAILED DESCRIPTION

[0014] The technical scheme in the embodiments of the utility model will be apparently and completely described below in conjunction with the drawings of the embodiments of the utility model, and apparently, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skill in the art without making creative labor belong to the range of protection of the utility model.

[0015] Please refer to Figures 1-4 The utility model discloses a kind of ratchet spanner for grab disassembly, including ratchet spanner 1, ratchet spanner 1 includes plum blossom head 2 and handle 3, when using, by hand handle 3, plum blossom head 2 is sleeved on the ring, by rotating handle 3, handle 3 can rotate plum blossom head 2, so that plum blossom head 2 is screwed to the ring, handle 3 end is provided with threaded hole 4, threaded hole 4 is provided with screw rod 5, screw rod 5 is provided with bearing 6, rotate screw rod 5, screw rod 5 is lifted in threaded hole 4 when rotating, screw rod 5 rotates on bearing 6 while driving bearing 6 also lifts, bearing 6 is provided with inner bracing piece, handle 3 end is provided with fixed ring 7, one end of inner bracing piece is connected with fixed ring 7, the lifting of bearing 6 drives the expansion or the shrink of inner bracing piece.

[0016] The inner support member comprises a first connecting rod 8 hinged on the bearing 6 and a second connecting rod 9 hinged on the fixed ring 7, the first connecting rod 8 is hinged with an arc-shaped inner support plate 10, the arc-shaped inner support plate 10 is hinged with the second connecting rod 9, and the arc-shaped inner support plate 10 is driven to expand or shrink outwards by the hinged first connecting rod 8 and the second connecting rod 9 when the bearing 6 is lifted.

[0017] The threaded rod 5 is provided with a rotating nut 11, and the threaded rod 5 is conveniently screwed by manually screwing the rotating nut 11.

[0018] The arc-shaped inner support plate 10 is provided with a cross sleeve 12 on the outside, the cross sleeve 12 comprises a sleeve 13, the upper and lower sides of the sleeve 13 are provided with handle rods 14, the sleeve 13 is sleeved on the outside of the arc-shaped inner support plate 10 during use, and the arc-shaped inner support plate 10 is tightly abutted against the inner wall of the sleeve 13 when expanding outwards, so that the cross sleeve 12 is fixed with the handle 3.

[0019] The working principle of the utility model is as follows: during use, the star-shaped head 2 is sleeved on the ring, the sleeve 13 of the cross sleeve 12 is sleeved on the outside of the arc-shaped inner support plate 10, the rotating nut 11 is manually screwed, the rotating nut 11 drives the threaded rod 5 to rotate in the threaded hole 4, the threaded rod 5 rotates to the outside of the handle 3, the threaded rod 5 drives the bearing 6 to move to the outside of the handle 3 while rotating on the bearing 6, the bearing 6 drives the first connecting rod 8 and the second connecting rod 9 to move, the arc-shaped inner support plate 10 expands outwards, until the arc-shaped inner support plate 10 is tightly abutted against the inner wall of the sleeve 13, the cross sleeve 12 and the handle 3 are fixed, then the handle rods 14 are gripped by hand, the middle finger and the ring finger are clamped on the handle, the palm grips the handle rod 14, then the cross sleeve 12 is rotated, the handle 3 is driven to rotate, the handle 3 drives the star-shaped head 2 to rotate, and the star-shaped head 2 is screwed on the ring.

[0020] The utility model is simple to operate, convenient to use, and suitable for comprehensive promotion and application. Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A ratchet wrench for dismounting a clamshell bucket, comprising a ratchet wrench (1) comprising a spanner head (2) and a handle (3), characterized in that, The handle (3) is provided with a threaded hole (4) at the end, a threaded rod (5) is arranged in the threaded hole (4), a bearing (6) is arranged on the threaded rod (5), and an inner supporting piece is arranged on the bearing (6); The handle (3) is provided with a fixed ring (7) at the end, and one end of the inner supporting piece is connected with the fixed ring (7).

2. The ratchet wrench for disassembling a clamshell according to claim 1, wherein The inner supporting piece comprises a first connecting rod (8) hinged on the bearing (6) and a second connecting rod (9) hinged on the fixed ring (7), and an arc-shaped inner supporting plate (10) is hinged on the first connecting rod (8), and the arc-shaped inner supporting plate (10) is hinged with the second connecting rod (9).

3. The ratchet wrench for disassembling a clamshell according to claim 1, wherein The threaded rod (5) is provided with a rotating nut (11).

4. The ratchet wrench for removing a clamshell according to claim 2, wherein The arc-shaped inner supporting plate (10) is provided with a cross sleeve (12) on the outer side, and the cross sleeve (12) comprises a sleeve (13), and the upper and lower sides of the sleeve (13) are provided with handle bars (14).

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