A pneumatic wrench for easy underwater alignment

Abstract

The present invention relates to the technical field of underwater pneumatic wrenches, and in particular to a pneumatic wrench for easy underwater alignment. The present invention provides a pneumatic wrench for easy underwater alignment that can knock on bolts in an underwater operating area and improve operating efficiency. A pneumatic wrench for easy underwater alignment includes a connector, a pneumatic wrench, a sleeve, an alignment mechanism and a knocking mechanism. The bottom of the pneumatic wrench is connected to the connector, the output end of the pneumatic wrench is clamped with a sleeve, the pneumatic wrench is provided with an alignment mechanism for alignment in water, and the front side of the pneumatic wrench is provided with a knocking mechanism for knocking underwater screws. The present invention is connected to the output end of the pneumatic wrench through a connecting tube, driving the first connecting column to rotate, so that the first connecting column rotation hole rotation guide column rotates, so that the second connecting column drives the hammer head to perform an up and down reciprocating motion, which can achieve the effect of knocking on the bolts in the underwater operating area and improving operating efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of pneumatic wrenches, in particular to a pneumatic wrench which is convenient for underwater alignment work. Background Art

[0002] When disassembling and assembling bolts in underwater working areas, an underwater pneumatic wrench is usually used. The existing underwater pneumatic wrench uses high-pressure gas as power to drive the socket on the wrench to rotate to disassemble and assemble underwater bolts. However, bolts used underwater for a long time are easily corroded by water, making it difficult to unscrew the bolts. The existing pneumatic wrench is also difficult to knock rusted bolts to loosen them, making it inconvenient to disassemble the bolts.

[0003] Therefore, a pneumatic wrench has been developed that can tap the bolts in the underwater working area to improve the working efficiency and facilitate underwater alignment work. Summary of the Invention

[0004] In order to overcome the disadvantages of existing pneumatic wrenches that it is difficult to loosen rusty bolts by knocking, resulting in inconvenience in bolt removal, the present invention provides a pneumatic wrench that can knock bolts in underwater working areas to improve working efficiency and facilitate underwater alignment work.

[0005] The technical implementation scheme of the present invention is: a pneumatic wrench for convenient underwater alignment work, including a connector, a pneumatic wrench, a sleeve, an alignment mechanism and a knocking mechanism. The bottom of the pneumatic wrench is connected to the connector, the output end of the pneumatic wrench is clamped with a sleeve, the pneumatic wrench is provided with an alignment mechanism for alignment in water, and the front side of the pneumatic wrench is provided with a knocking mechanism for knocking underwater screws.

[0006] More preferably, the alignment mechanism includes a connecting support frame, a first connecting frame, a first guide post, a first spring, a first rotating ball, a second connecting frame, a second guide post, a second spring, a second rotating ball, a third guide post, a third spring, a suction cup and a magnet. The right part of the pneumatic wrench is connected to the connecting support frame, a plurality of first connecting frames are connected to the connecting support frame, the first connecting frame is slidably connected to the first guide post, the bottom of the first guide post is rotatably connected to the first rotating ball, the first guide post is connected to the connecting support frame between the first spring, the right part of the connecting support frame is connected to a plurality of second connecting frames, and the right side of the second connecting frame is slidably connected to the first guide post. The pneumatic wrench is connected to the working area by the suction cup and the magnet. The connection support frame is fixed to the working area by the suction cup and the magnet, thereby improving the stability of the underwater operation of the pneumatic wrench. The first rotating ball and the second rotating ball can assist in the alignment of the drill bit installed on the output end of the pneumatic wrench, thereby improving the convenience of underwater operation.

[0007] The cam is connected to the upper end of the pneumatic wrench by the spring, and the cam is connected to the lower end of the pneumatic wrench by the spring.

[0008] More preferably, it also includes an anti-drop mechanism that can prevent the disassembled bolts from falling to the bottom of the water, the anti-drop mechanism includes a third connecting frame, a first connecting plate, a fourth guide post, a fourth spring, a fourth connecting frame, a second connecting plate, a fifth guide post, a fifth spring and a third rotating ball, a plurality of third connecting frames are slidably connected to the connecting support frame, the right portion of the third connecting frame is rotatably connected to the first connecting plate, the first connecting plate is slidably connected to the fourth guide post, the fourth guide post is connected to multiple fourth springs between adjacent first connecting plates, the right side of the fourth guide post is connected to the fourth connecting frame, the second connecting plate is connected between the fourth connecting frames, the second connecting plate is slidably connected to the fifth guide post, the side of the fifth guide post close to each other is rotatably connected to the third rotating ball, and the fifth guide post is connected to the second connecting plate between the fifth spring. When the underwater nut is disassembled, the third rotating ball clamps the nut in cooperation with the fifth guide post and the fifth spring, preventing the nut from falling to the bottom of the water during rotation and disassembly and being difficult to retrieve.

[0009] More preferably, it also includes an auxiliary screwing mechanism that can spray lubricating liquid on the bolts in the working area. The auxiliary screwing mechanism includes a connecting base plate, a chuck, a sixth spring, a storage bottle, a fixed plate, a sixth guide column and a seventh spring. The top of the pneumatic wrench is connected to the connecting base plate, the upper left side of the connecting base plate is connected to the chuck, the sixth spring is connected to the chuck, the top of the connecting base plate is clamped with the storage bottle, the upper right side of the connecting base plate is connected to the fixed plate, the storage bottle and the fixed plate are slidably connected, the top of the fixed plate is slidably connected with the sixth guide column, the seventh spring is connected between the sixth guide column and the fixed plate, the sixth guide column passes through the fixed plate and is clamped with the storage bottle, and the underwater lubricating liquid is contained and discharged through the storage bottle, and the lubricating liquid is discharged to the bolts in the working area, assisting the operator in disassembling the bolts.

[0010] More preferably, it also includes a placement mechanism that can place and carry different types of sockets. The placement mechanism includes a connecting plate, a fixed connecting column, a torsion spring and a cover plate. The front side of the left part of the pneumatic wrench is connected to a connecting plate, the upper side of the connecting plate is connected to the fixed connecting column, the upper part of the fixed connecting column is rotatably connected to the cover plate, and the left and right parts of the cover plate are connected to the fixed connecting column with a torsion spring. Under the action of the torsion spring, the cover plate cooperates with the connecting plate to place sockets of different specifications, which is convenient for underwater use.

[0011] More preferably, it also includes a holding mechanism that can assist the operator in carrying the pneumatic wrench. The holding mechanism includes a connecting handle and a hook. The connecting handle is connected to the left side of the pneumatic wrench, and the hook is connected to the front side of the connecting handle. The pneumatic wrench can be conveniently hooked on the work clothes through the hook, and the pneumatic wrench can be conveniently held underwater with the connecting handle.

[0012] More preferably, a friction pad is provided on the outside of the connecting housing.

[0013] Compared with the prior art, the present invention has the following advantages: 1. The present invention is connected to the output end of the pneumatic wrench through a connecting tube, driving the first connecting column to rotate, so that the rotating guide column of the rotating hole of the first connecting column rotates, and the second connecting column drives the hammer head to perform an up and down reciprocating motion, which can achieve the effect of knocking the bolts in the underwater working area and improving the working efficiency.

[0014] 2. The present invention clamps the nut through the cooperation of the third rotating ball with the fifth guide column and the fifth spring, thereby preventing the nut from falling to the bottom of the water and being difficult to retrieve during rotation and disassembly.

[0015] 3. The present invention cooperates with the connecting plate under the action of the torsion spring to place sleeves of different specifications, thereby achieving the effect of placing and carrying sleeves of different models for easy underwater use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0017] Figure 2 It is a partial three-dimensional structural schematic diagram of the present invention.

[0018] Figure 3 It is a schematic diagram of the three-dimensional structure of the alignment mechanism of the present invention.

[0019] Figure 4 It is a schematic diagram of the three-dimensional structure of the striking mechanism of the present invention.

[0020] Figure 5 It is a partial three-dimensional structural schematic diagram of the striking mechanism of the present invention.

[0021] Figure 6 This is a schematic diagram of the first three-dimensional structure of the anti-drop mechanism of the present invention.

[0022] Figure 7 This is a schematic diagram of the second three-dimensional structure of the anti-drop mechanism of the present invention.

[0023] Figure 8 It is a schematic diagram of the three-dimensional structure of the auxiliary twisting mechanism of the present invention.

[0024] Figure 9 It is a schematic diagram of the three-dimensional structure of the placement mechanism of the present invention.

[0025] Figure 10 It is a schematic diagram of the three-dimensional structure of the gripping mechanism of the present invention.

[0026] Among them, the above-mentioned drawings include the following figure marks: 1. Connecting head, 2. Pneumatic wrench, 3. Socket, 4. Alignment mechanism, 40. Connecting support frame, 41. First connecting frame, 42. First guide column, 43. First spring, 44. First rotating ball, 45. Second connecting frame, 46. Second guide column, 47. Second spring, 48. Second rotating ball, 49. Third guide column, 410. Third spring, 411. Suction cup, 412. Magnet, 5. Tapping mechanism, 50. Placement frame, 51. Connecting tube, 52. First connecting column, 53. Rotating guide column, 54. Second connecting column, 55. Slide groove, 56. Connecting outer Shell, 57, hammer head, 6, anti-drop mechanism, 60, third connecting frame, 61, first connecting plate, 62, fourth guide column, 63, fourth spring, 64, fourth connecting frame, 65, second connecting plate, 66, fifth guide column, 67, fifth spring, 68, third rotating ball, 7, auxiliary screwing mechanism, 70, connecting base plate, 71, chuck, 72, sixth spring, 73, storage bottle, 74, fixed plate, 75, sixth guide column, 76, seventh spring, 8, placement mechanism, 80, connecting plate, 81, fixed connecting column, 82, torsion spring, 83, cover plate, 9, holding mechanism, 90, connecting handle, 91, hook. DETAILED DESCRIPTION

[0027] The following is a clear and complete description of the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] A pneumatic wrench that is convenient for underwater alignment work, such as Figure 1 and Figure 2 As shown, it includes a connector 1, a pneumatic wrench 2, a sleeve 3, an alignment mechanism 4 and a knocking mechanism 5. The bottom of the pneumatic wrench 2 is connected to the connector 1, the sleeve 3 is clamped on the output end of the pneumatic wrench 2, the pneumatic wrench 2 is provided with a positioning mechanism 4, and the front side of the pneumatic wrench 2 is provided with a knocking mechanism 5.

[0029] like Figure 1 and Figure 3As shown, the alignment mechanism 4 includes a connecting support frame 40, a first connecting frame 41, a first guide column 42, a first spring 43, a first rotating ball 44, a second connecting frame 45, a second guide column 46, a second spring 47, a second rotating ball 48, a third guide column 49, a third spring 410, a suction cup 411 and a magnet 412. The right part of the pneumatic wrench 2 is connected to the connecting support frame 40, and a plurality of first connecting frames 41 are connected to the connecting support frame 40. The first connecting frames 41 are all slidably connected to the first guide columns 42, and the bottoms of the first guide columns 42 are all rotatably connected to the first rotating balls 44. The first guide columns 42 are all connected to the connecting frame 40. A first spring 43 is connected between the support frames 40, and a plurality of second connecting frames 45 are connected to the right side of the connecting support frames 40. The right side of the second connecting frames 45 are all slidably connected to second guide columns 46, and the bottom of the second guide columns 46 are all rotatably connected to second rotating balls 48. Second springs 47 are connected between the second guide columns 46 and the second connecting frames 45. The right side of the second connecting frames 45 are all slidably connected to third guide columns 49, and the third guide columns 49 are all connected to the adjacent second connecting frames 45 with third springs 410. A suction cup 411 is connected to the right side of the third guide columns 49, and a magnet 412 is connected to the right side of the pneumatic wrench 2.

[0030] like Figure 1 、 Figure 4 and Figure 5 As shown, the knocking mechanism 5 includes a placement rack 50, a connecting tube 51, a first connecting column 52, a rotating guide column 53, a second connecting column 54, a connecting shell 56 and a hammer head 57. The front side of the pneumatic wrench 2 is connected to the placement rack 50, and the placing rack 50 is clamped with a connecting shell 56. The outside of the connecting shell 56 is provided with a friction pad, which can increase the friction force of underwater holding. The upper part is rotatably connected to the first connecting column 52, and the top of the first connecting column 52 is connected to the connecting tube 51, and the connecting tube 51 can be clamped with the output end of the pneumatic wrench 2. The bottom of the first connecting column 52 is connected to the rotating guide column 53, and the rotating guide column 53 is rotatably connected to the inside of the connecting shell 56. The second connecting column 54 is slidably connected to the rotating guide column 53, and a slide groove 55 is opened on the second connecting column 54. The bottom of the second connecting column 54 is connected to the hammer head 57, and the second connecting column 54 is slidably connected to the connecting shell 56 through the slide groove 55.

[0031] When it is necessary to disassemble and assemble bolts underwater, the pneumatic wrench 2 can be used. First, the pneumatic wrench 2 is carried to the underwater operation area, and then the connecting support frame 40 is fixed to the operation area through the suction cup 411 and the magnet 412 to improve the stability of the pneumatic wrench 2 when operating underwater. The first rotating ball 44 and the second rotating ball 48 can assist in aligning the drill bit installed on the output end of the pneumatic wrench 2, thereby improving the convenience of underwater operation. Then, the pneumatic wrench 2 is started to disassemble and assemble the bolts in the operation area through the sleeve 3. When the rusted bolts underwater are difficult to unscrew, the sleeve 3 is removed and then the sleeve 3 is removed. The connecting shell 56 is removed from the placement rack 50 and connected to the output end of the pneumatic wrench 2 through the connecting tube 51. The output shaft of the pneumatic wrench 2 rotates through the connecting tube 51 to drive the first connecting column 52 to rotate. The rotation of the first connecting column 52 drives the rotating guide column 53 to rotate. The rotation of the rotating guide column 53 causes the second connecting column 54 to reciprocate up and down inside the connecting shell 56, driving the hammer head 57 to move. The hammer head 57 is used to knock on the underwater working area to loosen the rusty bolts for easy disassembly. After the knocking is completed, the sleeve 3 can be replaced again to disassemble the bolts.

[0032] like Figure 1 、 Figure 6 and Figure 7 As shown, it also includes an anti-drop mechanism 6, which includes a third connecting frame 60, a first connecting disk 61, a fourth guide column 62, a fourth spring 63, a fourth connecting frame 64, a second connecting disk 65, a fifth guide column 66, a fifth spring 67 and a third rotating ball 68. A plurality of third connecting frames 60 are slidably connected to the connecting support frame 40, and the right part of the third connecting frame 60 is rotatably connected to the first connecting disk 61. The first connecting disk 61 is slidably connected to the fourth guide column 62, and a plurality of fourth springs 63 are connected between the fourth guide column 62 and the adjacent first connecting disk 61. The right side of the fourth guide column 62 is connected to the fourth connecting frame 64, and the second connecting disk 65 is connected between the fourth connecting frame 64. The second connecting disk 65 is slidably connected to the fifth guide column 66, and the third rotating ball 68 is rotatably connected on the side where the fifth guide columns 66 are close to each other. The fifth spring 67 is connected between the fifth guide column 66 and the second connecting disk 65.

[0033] The anti-drop mechanism 6 of the device can prevent the disassembled bolts from falling to the bottom of the water. When the underwater nut is disassembled, the third rotating ball 68, in cooperation with the fifth guide column 66 and the fifth spring 67, clamps the nut to prevent the nut from falling to the bottom of the water during rotation and disassembly, making it difficult to retrieve. The remaining third connecting frame 60, the first connecting plate 61 and the fourth guide column 62, etc., adapt and slide on the connecting support frame 40 to avoid interfering with the normal operation of the pneumatic wrench 2.

[0034] like Figure 1 and Figure 8As shown, it also includes an auxiliary screwing mechanism 7, which includes a connecting base plate 70, a chuck 71, a sixth spring 72, a storage bottle 73, a fixed plate 74, a sixth guide column 75 and a seventh spring 76. The top of the pneumatic wrench 2 is connected to the connecting base plate 70, the upper left side of the connecting base plate 70 is connected to the chuck 71, the sixth spring 72 is connected to the chuck 71, the top of the connecting base plate 70 is clamped with the storage bottle 73, the upper right side of the connecting base plate 70 is connected to the fixed plate 74, the storage bottle 73 is slidably connected to the fixed plate 74, the top of the fixed plate 74 is slidably connected to the sixth guide column 75, the seventh spring 76 is connected between the sixth guide column 75 and the fixed plate 74, and the sixth guide column 75 passes through the fixed plate 74 and is clamped with the storage bottle 73.

[0035] By using the auxiliary screwing mechanism 7 of the present device, the bolts in the working area can be sprayed with lubricating liquid. The underwater lubricating liquid can be contained and discharged through the storage bottle 73, and the lubricating liquid can be discharged to the bolts in the working area. The auxiliary operator can disassemble the bolts and pull the sixth guide column 75 upwards to remove the storage bottle 73 for adding lubricating liquid.

[0036] like Figure 1 and Figure 9 As shown, it also includes a placement mechanism 8, which includes a connecting plate 80, a fixed connecting column 81, a torsion spring 82 and a cover plate 83. The front side of the left part of the pneumatic wrench 2 is connected to the connecting plate 80, the upper side of the connecting plate 80 is connected to the fixed connecting column 81, the upper part of the fixed connecting column 81 is rotatably connected to the cover plate 83, and the left and right parts of the cover plate 83 are connected to the fixed connecting column 81 with a torsion spring 82.

[0037] By using the placement mechanism 8 of the device, different types of sleeves 3 can be placed and carried. Under the action of the torsion spring 82, the cover plate 83 cooperates with the connecting plate 80 to place sleeves 3 of different specifications, which is convenient for underwater use. When taking them out, just turn the cover plate 83 to open it.

[0038] like Figure 1 and Figure 10 As shown, the pneumatic wrench 2 also includes a gripping mechanism 9 , which includes a connecting handle 90 and a hook 91 . The connecting handle 90 is connected to the left side of the pneumatic wrench 2 , and the hook 91 is connected to the front side of the connecting handle 90 .

[0039] The holding mechanism 9 of the device can assist the operator in carrying the pneumatic wrench 2. The pneumatic wrench 2 can be conveniently hooked on the work clothes through the hook 91, and the pneumatic wrench 2 can be conveniently held underwater with the connection handle.

[0040] While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. The scope of the following claims is to be accorded the broadest interpretation so as to encompass all modifications and equivalent structures and functions.

Claims

1. A pneumatic wrench for easy underwater alignment, characterized by: The invention comprises a connector (1), a pneumatic wrench (2), a sleeve (3), an alignment mechanism (4) and a knocking mechanism (5), wherein the bottom of the pneumatic wrench (2) is connected to the connector (1), the output end of the pneumatic wrench (2) is clamped with the sleeve (3), the pneumatic wrench (2) is provided with an alignment mechanism (4) for alignment in water, and the front side of the pneumatic wrench (2) is provided with a knocking mechanism (5) for knocking underwater screws; The alignment mechanism (4) includes a connecting support frame (40), a first connecting frame (41), a first guide column (42), a first spring (43), a first rotating ball (44), a second connecting frame (45), a second guide column (46), a second spring (47), a second rotating ball (48), a third guide column (49), a third spring (410), a suction cup (411) and a magnet (412). The right part of the pneumatic wrench (2) is connected to the connecting support frame (40), a plurality of first connecting frames (41) are connected to the connecting support frame (40), the first connecting frame (41) is slidably connected to the first guide column (42), the bottom of the first guide column (42) is rotatably connected to the first rotating ball (44), the first guide column (42) is connected to the connecting support frame (40) by a first spring (43), the right part of the connecting support frame (40) is connected to a plurality of second connecting frames (45), the second connecting frame The right side of (45) is slidably connected to a second guide column (46), the bottom of the second guide column (46) is rotatably connected to a second rotating ball (48), the second guide column (46) is connected to the second connecting frame (45) with a second spring (47), the right side of the second connecting frame (45) is slidably connected to a third guide column (49), the third guide column (49) is connected to the adjacent second connecting frame (45) with a third spring (410), the right side of the third guide column (49) is connected to a suction cup (411), the right side of the pneumatic wrench (2) is connected to a magnet (412), the connecting support frame (40) is fixed to the working area by the suction cup (411) and the magnet (412), thereby improving the stability of the underwater operation of the pneumatic wrench (2), the first rotating ball (44) and the second rotating ball (48) can assist in the alignment of the drill bit installed on the output end of the pneumatic wrench (2), thereby improving the convenience of underwater operation.

2. The pneumatic wrench for underwater convenient alignment according to claim 1, characterized in that: The striking mechanism (5) includes a placing frame (50), a connecting tube (51), a first connecting column (52), a rotating guide column (53), a second connecting column (54), a connecting shell (56) and a hammer head (57). The front side of the pneumatic wrench (2) is connected to the placing frame (50), the placing frame (50) is clamped with the connecting shell (56), the upper part is rotatably connected to the first connecting column (52), the top of the first connecting column (52) is connected to the connecting tube (51), the connecting tube (51) can be clamped with the output end of the pneumatic wrench (2), the bottom of the first connecting column (52) is connected to the rotating guide column (53), the rotating guide column (53) is rotatably connected to the inside of the connecting shell (56), the rotating guide column (53) is slidably connected to the second connecting column (54), the second connecting column (54) ) is provided with a slide groove (55), a hammer head (57) is connected to the bottom of the second connecting column (54), the second connecting column (54) is slidably connected to the connecting shell (56) through the slide groove (55), the connecting shell (56) is removed from the placement rack (50), and is connected to the output end of the pneumatic wrench (2) through the connecting tube (51), the output shaft of the pneumatic wrench (2) rotates through the connecting tube (51) to drive the first connecting column (52) to rotate, the first connecting column (52) rotates to drive the rotating guide column (53) to rotate, the rotating guide column (53) rotates to make the second connecting column (54) reciprocate up and down inside the connecting shell (56), drive the hammer head (57) to move, and knock the underwater working area through the hammer head (57) to loosen the rusty bolts for easy disassembly.

3. The pneumatic wrench for convenient underwater alignment according to claim 2, characterized in that: The anti-drop mechanism (6) is also included to prevent the disassembled bolts from falling to the bottom of the water. The anti-drop mechanism (6) includes a third connecting frame (60), a first connecting plate (61), a fourth guide column (62), a fourth spring (63), a fourth connecting frame (64), a second connecting plate (65), a fifth guide column (66), a fifth spring (67) and a third rotating ball (68). A plurality of third connecting frames (60) are slidably connected to the connecting support frame (40). The right portion of each third connecting frame (60) is rotatably connected to the first connecting plate (61). Each first connecting plate (61) is slidably connected to a fourth guide column (62). Each fourth guide column (62) is connected to an adjacent first connecting plate (61). ) are connected with a plurality of fourth springs (63), the right side of each fourth guide column (62) is connected with a fourth connecting frame (64), a second connecting disk (65) is connected between the fourth connecting frames (64), a fifth guide column (66) is slidably connected to each second connecting disk (65), a third rotating ball (68) is rotatably connected on the side of each fifth guide column (66) close to each other, and a fifth spring (67) is connected between each fifth guide column (66) and the second connecting disk (65). When the underwater nut is disassembled, the third rotating ball (68) is used to clamp the nut in cooperation with the fifth guide column (66) and the fifth spring (67), so as to prevent the nut from falling into the water bottom and being difficult to retrieve during the rotation disassembly.

4. The pneumatic wrench for underwater convenient alignment according to claim 3, characterized in that: The invention also includes an auxiliary screwing mechanism (7) capable of spraying lubricating liquid on the bolts in the working area. The auxiliary screwing mechanism (7) includes a connecting base plate (70), a chuck (71), a sixth spring (72), a storage bottle (73), a fixing plate (74), a sixth guide column (75) and a seventh spring (76). The top of the pneumatic wrench (2) is connected to the connecting base plate (70), the upper left side of the connecting base plate (70) is connected to the chuck (71), the sixth spring (72) is connected to the chuck (71), the top of the connecting base plate (70) is clamped with the storage bottle (73). 3) A fixing plate (74) is connected to the upper right side of the connecting bottom plate (70), the storage bottle (73) is slidably connected to the fixing plate (74), and a sixth guide column (75) is slidably connected to the top of the fixing plate (74). A seventh spring (76) is connected between the sixth guide column (75) and the fixing plate (74). The sixth guide column (75) passes through the fixing plate (74) and is clamped with the storage bottle (73). The underwater lubricating liquid is filled and discharged through the storage bottle (73), and the lubricating liquid is discharged to the bolts in the working area to assist the operator in disassembling the bolts.

5. The pneumatic wrench for underwater convenient alignment according to claim 4, characterized in that: The invention also includes a placement mechanism (8) capable of placing and carrying sleeves (3) of different models. The placement mechanism (8) includes a connecting plate (80), a fixed connecting column (81), a torsion spring (82) and a cover plate (83). The front side of the left portion of the pneumatic wrench (2) is connected to the connecting plate (80), the upper side of the connecting plate (80) is connected to the fixed connecting column (81), the upper part of the fixed connecting column (81) is rotatably connected to the cover plate (83), and the left and right parts of the cover plate (83) are connected to the fixed connecting column (81) with a torsion spring (82). Under the action of the torsion spring (82), the cover plate (83) cooperates with the connecting plate (80) to place sleeves (3) of different specifications, thereby facilitating underwater use.

6. The pneumatic wrench for convenient underwater alignment according to claim 5, characterized in that: The invention also includes a holding mechanism (9) capable of assisting an operator in carrying the pneumatic wrench (2). The holding mechanism (9) includes a connecting handle (90) and a hook (91). The left side of the pneumatic wrench (2) is connected to the connecting handle (90), and the front side of the connecting handle (90) is connected to the hook (91). The pneumatic wrench (2) can be conveniently hooked on the work clothes through the hook (91). The pneumatic wrench (2) can be conveniently held underwater with the connecting handle.

7. The pneumatic wrench for convenient underwater alignment according to claim 6, characterized in that: A friction pad is provided on the outside of the connecting housing (56).

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