A dismounting wrench suitable for a pneumatic polishing gun

Abstract

A kind of dismounting wrench suitable for pneumatic polishing gun belongs to the technical field of pneumatic polishing gun overhaul, including lengthening rod, the outer surface one end of the lengthening rod is welded with rotating structure, the rotating structure includes connecting shaft, the upper and lower sides of the connecting shaft are slidably installed with sliding hoop;By aligning two cylindrical pins in the front end hollow of polishing gun, at this time by simultaneously turning two sides first paddle, make two bidirectional screw rod rotate simultaneously, due to the limiting of limiting rod to L type rod, at this time can make two hoop rings move horizontally to two sides, at this time fixed screw rod is not fixed, rotate fixed screw rod and make it move downward in first nut and connect with the thread in output shaft, after connection, rotate two first paddles again, make two hoop rings reset, avoid fixed screw rod loosening when rotating, at this time by holding lengthening rod and rotating, can dismount front end cover, thus reaches the purpose of quickly and labor-saving to pneumatic polishing gun and carries out dismounting overhaul.

Description

Technical Field

[0001] This invention relates to the field of pneumatic grinding gun maintenance technology, specifically a disassembly wrench suitable for pneumatic grinding guns. Background Technology

[0002] In the shipbuilding industry and other manufacturing sectors, grinding is an essential and indispensable task. The grinding gun is the most crucial tool in this process, and pneumatic grinding guns offer several advantages over electric ones. Pneumatic grinding guns are smaller, have higher rotation speeds, higher grinding efficiency, and stronger dust removal capabilities. Therefore, pneumatic grinding guns are more widely used in shipbuilding and other manufacturing industries. The heavy workload and demanding schedules of daily grinding operations inevitably lead to grinding gun damage, resulting in a large number of damaged guns requiring repair. In such cases, efficient grinding gun repair becomes extremely important.

[0003] Currently, when repairing the front end of a grinding gun, there are no special tools available. Needle-nose pliers are often used to insert into the front end cap and unscrew it. This not only results in low repair efficiency and high labor costs, but also leads to problems such as the inability to disassemble and repair. Based on the shortcomings of existing technology, this invention designs a disassembly wrench suitable for pneumatic grinding guns. Summary of the Invention

[0004] This invention provides a disassembly wrench suitable for pneumatic grinding guns, which has the advantages of quick and labor-saving disassembly and maintenance of pneumatic grinding guns, and solves the problems mentioned in the background art.

[0005] This invention provides the following technical solution: a disassembly wrench suitable for pneumatic grinding guns, comprising an extension rod, a rotating structure welded to one end of the outer surface of the extension rod, the rotating structure including a connecting shaft, sliding hoops slidably mounted on the upper and lower sides of the connecting shaft, a side skirt installed inside the upper sliding hoop, fixing holes opened on both sides of the outer surface of the side skirt, a first nut welded inside the connecting shaft, a fixing screw threaded inside the first nut, a first locking structure provided at the top of the fixing hole, and two cylindrical pins symmetrically mounted on both sides of the bottom of the connecting shaft; the first locking structure includes two groove plates, limit rods installed inside the two groove plates, L-shaped rods slidably mounted on the outer surface of the two limit rods, a hoop ring installed on one side of the two L-shaped rods, two double-ended screws threaded between the two hoop rings, and a first lever installed at one end of the two double-ended screws.

[0006] As a preferred embodiment of the present invention, a second locking structure is installed on the top of the two fixing holes. The two second locking structures include a sleeve and a mounting plate, and the two sleeves are fixedly connected to the groove plate.

[0007] As a preferred embodiment of the present invention, a stop plate is installed inside the two sleeve columns, a spring is installed on one side of the top of the stop plate, a sliding piece is installed at one end of the top of the spring, and a stop column is installed inside the sliding piece.

[0008] As a preferred embodiment of the present invention, a rotating rod is rotatably mounted inside the abutment, a second lever is mounted at the top end of the rotating rod, and a locking plate is mounted at the bottom end of the rotating rod.

[0009] As a preferred embodiment of the present invention, the mounting plate is disposed inside the fixing hole, and a slot is formed inside the mounting plate.

[0010] As a preferred embodiment of the present invention, two reinforcing ribs are installed on one end of the outer surface of the extension rod, and the two reinforcing ribs are welded to the connecting shaft.

[0011] As a preferred embodiment of the present invention, the outer surface of the extension rod is fitted with an anti-slip sleeve, and a conversion structure is installed at one end of the outer surface of the extension rod.

[0012] As a preferred embodiment of the present invention, the conversion structure includes a strip frame, a fastening screw is rotatably mounted inside the strip frame, one end of the fastening screw is threaded, and a sleeve shaft is fixedly mounted on the outer surface of the fastening screw.

[0013] As a preferred embodiment of the present invention, a first folding rod is installed on one side of the outer surface of the sleeve shaft, and a hook is installed at one end of the first folding rod.

[0014] As a preferred embodiment of the present invention, a second folding rod is installed on one side of the outer surface of the sleeve shaft, an internal hexagonal nut is installed at one end of the second folding rod, a washer is sleeved on the outer surface of the fastening screw, and a second nut is threaded on the outer surface of the fastening screw.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. This type of disassembly wrench for pneumatic grinding guns, through a rotating structure, a first locking structure, and cylindrical pins, allows for the disassembly and maintenance of the S125 pneumatic grinding gun. First, the grinding gun locking sleeve is removed using a hook. Then, by aligning the two cylindrical pins with the front hole of the grinding gun, the two bidirectional screws are rotated simultaneously by turning the first levers on both sides. Due to the limiting rod's restriction on the L-shaped rod, the two retaining rings can be moved horizontally to both sides. At this time, the fixing screw is not fixed. Rotating the fixing screw causes it to move downward in the first nut and connect with the thread in the output shaft. After connection, the two first levers are rotated again to reset the two retaining rings, preventing the fixing screw from loosening during rotation. The front cover can then be removed by holding and rotating the extension rod. For installation, simply rotate the extension rod in the opposite direction. This achieves the purpose of quickly and effortlessly disassembling and maintaining the pneumatic grinding gun.

[0017] 2. This disassembly wrench for pneumatic grinding guns, through a second locking structure, allows the sliding plate to be pressed down simultaneously when the device is not in use. This causes the spring to contract, moving the sliding plate and the abutment downwards, allowing the locking plate to enter the slot. Then, by rotating the second lever, the rotating rod rotates the locking plate 90° within the slot, thus locking the locking plate in place. This limits and fixes the connecting shaft, preventing the extension rod from causing the connecting shaft to wobble when the device is not in use. When the device needs to be used, by resetting the second lever, the spring is released, allowing the locking plate to pop out of the slot, thus releasing the limitation and fixation of the connecting shaft.

[0018] 3. This type of disassembly wrench for pneumatic grinding guns, through a structural conversion, allows for the removal of the grinding gun locking sleeve using a hook. When disassembling the front cover, if the operator has difficulty applying force, the second nut can be loosened, allowing the fastening screw to rotate. This enables the first and second folding rods to be interchanged, allowing the internal hex nut to extend from the strip frame. At this point, an internal hex wrench can be inserted into the internal hex nut, and by rotating the wrench, the extension rod can drive the connecting shaft to rotate, thereby changing the angle of force application of the device and improving the adaptability of the device. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the external structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the anti-slip sleeve structure of the present invention;

[0021] Figure 3 This is a schematic diagram of the sliding hoop structure of the present invention;

[0022] Figure 4 This is a schematic diagram of the first nut structure of the present invention;

[0023] Figure 5 This is a schematic diagram of the cylindrical pin structure of the present invention;

[0024] Figure 6 This is a schematic diagram of the locking structure of the present invention;

[0025] Figure 7 This is a schematic diagram of the second locking structure of the present invention;

[0026] Figure 8 This is a schematic diagram of the conversion structure of the present invention.

[0027] In the diagram: 1. Extending rod; 2. Anti-slip sleeve; 3. Rotating structure; 31. Connecting shaft; 32. Sliding hoop; 33. Side skirt; 34. Fixing hole; 35. First nut; 36. Fixing screw; 4. Conversion structure; 41. Strip frame; 42. Fastening screw; 43. Sleeve shaft; 44. First folding rod; 45. Hook; 46. Second folding rod; 47. Hex socket nut; 48. Washer; 49. Second nut 5. Reinforcing rib; 6. First locking structure; 61. Groove plate; 62. Limiting rod; 63. L-shaped rod; 64. Hoop ring; 65. Double-acting screw; 66. First lever; 7. Second locking structure; 71. Sleeve post; 72. Abutment plate; 73. Spring; 74. Sliding piece; 75. Abutment post; 76. Rotating rod; 77. Second lever; 78. Clamping plate; 79. Mounting plate; 710. Clamping groove; 8. Cylindrical pin. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] Please see Figure 1-8A disassembly wrench suitable for pneumatic grinding guns includes an extension rod 1. A rotating structure 3 is welded to one end of the outer surface of the extension rod 1. The rotating structure 3 includes a connecting shaft 31. Sliding clamps 32 are slidably installed on the upper and lower sides of the connecting shaft 31. A side skirt 33 is installed inside the upper sliding clamp 32. Fixing holes 34 are opened on both sides of the outer surface of the side skirt 33. A first nut 35 is welded inside the connecting shaft 31. A fixing screw 36 is threaded inside the first nut 35. A first locking structure 6 is provided at the top of the fixing hole 34. Two cylindrical pins 8 are symmetrically installed on both sides of the bottom of the connecting shaft 31. The first locking structure 6 includes two slot plates 61. Limiting rods 62 are installed inside the two slot plates 61. L-shaped rods 63 are slidably installed on the outer surface of the two limiting rods 62. A clamp ring 64 is installed on one side of the two L-shaped rods 63. Two double-ended screws 65 are threaded between the two clamp rings 64. A first lever 66 is installed at one end of the two double-ended screws 65.

[0030] Please see Figure 4 and Figure 7 A second locking structure 7 is installed at the top of the two fixing holes 34. The two second locking structures 7 include sleeves 71 and mounting plates 79. The two sleeves 71 are fixedly connected to the groove plate 61. A stop plate 72 is installed inside the two sleeves 71. A spring 73 is installed on one side of the top of the stop plate 72. A sliding piece 74 is installed at one end of the top of the spring 73. A stop 75 is installed inside the sliding piece 74. A rotating rod 76 is rotatably installed inside the stop 75. A second lever 77 is installed at one end of the top of the rotating rod 76. A locking plate 78 is installed at one end of the bottom of the rotating rod 76. The mounting plate 79 is located inside the fixing holes 34. A locking groove 710 is opened inside the mounting plate 79.

[0031] When the device is not in use, pressing down on the sliding plate 74 simultaneously causes the spring 73 to contract, which in turn causes the sliding plate 74 to move the abutment 75 downward, allowing the locking plate 78 to enter the slot 710. Rotating the second lever 77 then causes the rotating rod 76 to rotate the locking plate 78 90° within the slot 710, thus locking the locking plate 78 in place. This limits and fixes the connecting shaft 31, preventing the extension rod 1 from causing the connecting shaft 31 to wobble when the device is not in use. When the device needs to be used, resetting the second lever 77 releases the spring 73, allowing the locking plate 78 to pop out of the slot 710, thus removing the limitation and fixation of the connecting shaft 31.

[0032] Please see Figure 1-2 Two reinforcing ribs 5 are installed at one end of the outer surface of the extension rod 1, and the two reinforcing ribs 5 are welded to the connecting shaft 31. An anti-slip sleeve 2 is fitted onto the outer surface of the extension rod 1, and a conversion structure 4 is installed at one end of the outer surface of the extension rod 1.

[0033] The reinforcing rib 5 can strengthen the connection between the extension rod 1 and the connecting shaft 31 to prevent breakage during rotation.

[0034] Please see Figure 1 and Figure 8 The conversion structure 4 includes a strip frame 41, with a fastening screw 42 rotatably mounted inside the strip frame 41. One end of the fastening screw 42 is threaded, and a sleeve shaft 43 is fixedly mounted on the outer surface of the fastening screw 42. A first folding rod 44 is mounted on one side of the outer surface of the sleeve shaft 43, and a hook 45 is mounted on one end of the first folding rod 44. A second folding rod 46 is mounted on one side of the outer surface of the sleeve shaft 43, and an internal hexagonal nut 47 is mounted on one end of the second folding rod 46. A washer 48 is fitted onto the outer surface of the fastening screw 42, and a second nut 49 is threaded onto the outer surface of the fastening screw 42.

[0035] When disassembling the front cover, if the operator has difficulty applying force, the second nut 49 can be loosened. At this time, the fastening screw 42 can be rotated, thereby enabling the first folding rod 44 and the second folding rod 46 to be interchanged. This allows the internal hex nut 47 to extend out of the strip frame 41. At this time, an internal hex wrench can be inserted into the internal hex nut 47. By rotating the internal hex wrench, the extension rod 1 can drive the connecting shaft 31 to rotate, thereby changing the angle of force applied by the device.

[0036] Working principle: When using a disassembly wrench suitable for pneumatic grinding guns, in the initial state, pressing down on the sliding plate 74 simultaneously compresses the spring 73, causing the sliding plate 74 to move the abutment 75 downwards. This allows the locking plate 78 to enter the slot 710. Rotating the second lever 77 then rotates the rotating rod 76, causing the locking plate 78 to rotate 90° within the slot 710, thus locking the locking plate 78 in place. This limits and fixes the connecting shaft 31, preventing the extension rod 1 from causing the connecting shaft 31 to wobble when the device is not in use. When the device needs to be used, resetting the second lever 77 releases the spring 73, allowing the locking plate 78 to pop out of the slot 710, thus canceling the operation. To limit and fix the connecting shaft 31, first remove the grinding gun lock sleeve using the hook 45. Then, align the two cylindrical pins 8 with the front hole of the grinding gun. At this time, simultaneously turn the first two levers 66 on both sides to make the two bidirectional screws 65 rotate at the same time. Due to the limiting rod 62 limiting the L-shaped rod 63, the two hoop rings 64 can move horizontally to both sides. At this time, the fixing screw 36 is not fixed. Rotate the fixing screw 36 to make it move downward in the first nut 35 and connect with the thread in the output shaft. After connection, rotate the two first levers 66 again to reset the two hoop rings 64 to prevent the fixing screw 36 from loosening during rotation. At this time, the front cover can be removed by holding the extension rod 1 and rotating it. During installation, simply rotate the extension rod 1 in the opposite direction.

[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0038] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A disassembly wrench suitable for pneumatic grinding guns, comprising an extension rod (1), characterized in that: The extension rod (1) has a rotating structure (3) welded to one end of its outer surface. The rotating structure (3) includes a connecting shaft (31). Sliding hoops (32) are slidably installed on the upper and lower sides of the connecting shaft (31). A side skirt (33) is installed inside the upper sliding hoop (32). Fixing holes (34) are opened on both sides of the outer surface of the side skirt (33). A first nut (35) is welded inside the connecting shaft (31). A fixing screw (36) is installed in the internal thread of the first nut (35). A first locking structure (6) is provided at the top of the fixing hole (34). Two cylindrical pins (8) are symmetrically installed on both sides of the bottom of the connecting shaft (31). The first locking structure (6) includes two slot plates (61), with limit rods (62) installed inside the two slot plates (61), and L-shaped rods (63) slidably installed on the outer surfaces of the two limit rods (62). A hoop (64) is installed on one side of the two L-shaped rods (63), and two double-ended screws (65) are threaded between the two hoops (64). A first paddle (66) is installed at one end of the two double-ended screws (65). The top of the two fixing holes (34) is equipped with a second locking structure (7), the two second locking structures (7) include a sleeve (71) and a mounting plate (79), and the two sleeves (71) are fixedly connected to the groove plate (61); Inside the two sleeves (71), there is a stop plate (72), a spring (73) is installed on one side of the top of the stop plate (72), a sliding piece (74) is installed at one end of the top of the spring (73), and a stop post (75) is installed inside the sliding piece (74). The abutment (75) is rotatably mounted with a rotating rod (76), a second lever (77) is mounted at the top end of the rotating rod (76), and a locking plate (78) is mounted at the bottom end of the rotating rod (76).

2. The disassembly wrench for a pneumatic grinding gun according to claim 1, characterized in that: The mounting plate (79) is disposed inside the fixing hole (34), and a slot (710) is provided inside the mounting plate (79).

3. A disassembly wrench for pneumatic grinding guns according to claim 1, characterized in that: Two reinforcing ribs (5) are installed on one end of the outer surface of the extension rod (1), and the two reinforcing ribs (5) are welded to the connecting shaft (31).

4. A disassembly wrench for a pneumatic grinding gun according to claim 1, characterized in that: The outer surface of the extension rod (1) is fitted with an anti-slip sleeve (2), and a conversion structure (4) is installed at one end of the outer surface of the extension rod (1).

5. A disassembly wrench for a pneumatic grinding gun according to claim 4, characterized in that: The conversion structure (4) includes a strip frame (41), a fastening screw (42) is rotatably installed inside the strip frame (41), one end of the fastening screw (42) is threaded, and a sleeve shaft (43) is fixedly installed on the outer surface of the fastening screw (42).

6. A disassembly wrench for a pneumatic grinding gun according to claim 5, characterized in that: A first folding rod (44) is installed on one side of the outer surface of the sleeve shaft (43), and a hook (45) is installed at one end of the first folding rod (44).

7. A disassembly wrench for a pneumatic grinding gun according to claim 6, characterized in that: A second folding rod (46) is installed on one side of the outer surface of the sleeve shaft (43), and an internal hexagonal nut (47) is installed at one end of the second folding rod (46). A washer (48) is sleeved on the outer surface of the fastening screw (42), and a second nut (49) is threaded on the outer surface of the fastening screw (42).

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