Portable integrated maintenance special tool

Abstract

The invention relates to the technical field of machinery, in particular to a portable integrated maintenance special tool. The invention discloses a portable integrated maintenance special tool. According to the portable integrated maintenance special tool provided by the invention, the special clamping groove matched with the four-groove round nut, the universal clamping groove for disassembling the universal nut and the movable clamping block are integrated on the wrench body, so that an operator can cope with various maintenance scenes only by carrying the portable integrated maintenance special tool; different tools do not need to be replaced frequently, the maintenance process is obviously simplified, the operation complexity is reduced, the tool preparation time is saved, and the maintenance efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the field of mechanical technology, and in particular to a portable integrated special maintenance tool. Background Art

[0002] During operation, medium- and high-speed diesel engines undergo designated inspections and repairs according to the maintenance manual. Some engine components are model-specific and require specialized tools. Meanwhile, the connections between components are typically standard and require general-purpose tools. Operators must bring both specialized and general-purpose tools to complete repairs on designated components. The centrifugal filter on medium- and high-speed diesel engines undergoes repairs every 500 hours or one month, requiring frequent inspections to ensure proper filter operation and, consequently, the engine's lubricating oil system.

[0003] However, during routine maintenance and disassembly of centrifugal filters, it was discovered that a large number of tools were involved in disassembling and assembling the filter, and that the national standard round nuts used to fix the rotor body were difficult to disassemble and assemble. Upon verification, it was found that the fixing bolts of the centrifugal filter rotor body were designed to be four-slot round nuts. In special circumstances where the required tools are not brought with them, the usual method of disassembly and assembly on board is to use a hammer and a flat-blade screwdriver to knock and disassemble them. Since disassembly and assembly are required once every 500 hours or 1 month during repairs, the frequency of disassembly and assembly is high, which can easily lead to damage to the four slots of the four-slot round nut and failure of the nut, making disassembly and assembly difficult. In addition, when performing maintenance work in the confined space of a cabin, the existing tools are often not flexible enough in design and cannot be changed in shape when needed to adapt to the confined working environment. As a result, when it is necessary to use a special slot to remove the nut, the inconvenience of changing shape increases the difficulty and time-consuming nature of the maintenance work.

[0004] Therefore, it is necessary to provide a new portable integrated maintenance special tool to solve the above technical problems. Summary of the Invention

[0005] In order to solve the above technical problems, the present invention provides a portable integrated special maintenance tool.

[0006] The portable integrated special maintenance tool provided by the present invention includes: a wrench body, a movable clamping block, a rectangular clamping block, an insertion rod and a rotating cylinder. The wrench body is composed of a fixed block in the middle and movable plates at both ends, wherein the middle of the fixed block is provided with a special clamping slot adapted to a four-slot round nut, and the inside of the movable plate is provided with a universal clamping slot, and the ends of one movable plate are symmetrically provided with movable clamping blocks with adjustable spacing, and the inside of the opposite ends of the movable plates are both installed with rectangular clamping blocks for fixing the position of the movable plate and the fixed block, the inside of the universal clamping slot is provided with an insertion rod, and the outside of the insertion rod is provided with a rotating cylinder for rotating after holding.

[0007] Preferably, one end of the two movable plates close to the movable clamping block is provided with a first mounting groove, the inner wall of the first mounting groove is rotatably connected to a bidirectional screw, the middle part of the bidirectional screw is fixedly connected to a roller, and the outer walls at both ends are symmetrically threaded with sliders, the sliders are fixedly connected to the corresponding movable clamping block, and the movable clamping block is slidably connected to the inner wall of the first mounting groove.

[0008] Preferably, placement grooves are provided inside the facing ends of the two movable plates, and the rectangular blocks are slidably connected to the corresponding inner walls of the placement grooves. The inner walls of the placement grooves are symmetrically fixedly connected to two springs one, and the other ends of the springs one are fixedly connected to spherical blocks. Spherical grooves corresponding to the spherical blocks are provided on both sides of the rectangular blocks, and the spherical blocks have at least one group that is engaged with the spherical grooves. Grooves corresponding to the rectangular blocks are provided inside the two ends of the fixed blocks, and the rectangular blocks are placed in the corresponding grooves in the initial state.

[0009] Preferably, the top of the rectangular block is fixedly connected to a sliding plate, and the tops of the two movable plates facing each other are provided with sliding grooves, the sliding plates are placed inside the corresponding sliding grooves, and the bottom ends pass through the sliding grooves and are fixedly connected to the rectangular block.

[0010] Preferably, the tops of the two facing ends of the two movable plates are symmetrically fixedly connected with limiting blocks, and the limiting blocks are used to limit the movable plates from rotating 90 degrees around the rotation connection with the fixed block.

[0011] Preferably, a second mounting groove is symmetrically provided inside the movable plate near the universal card slot, and the inner wall of the second mounting groove is fixedly connected to a spring 2, one end of the spring 2 is fixedly connected to a trapezoidal block, and the side walls of the trapezoidal block are fixedly connected to an L-shaped rod, the L-shaped rod is slidably connected to the inner wall of the second mounting groove, and the other end of the L-shaped rod is fixedly connected to a button.

[0012] Preferably, the outer wall of the insertion rod is symmetrically provided with two groups of trapezoidal grooves corresponding to the trapezoidal blocks, the two groups of trapezoidal grooves are distributed up and down, and the distance between the two groups of trapezoidal grooves is equal to the distance between the trapezoidal blocks inside the two movable plates after rotating 90 degrees.

[0013] Preferably, the top end of the insertion rod is hinged with a support rod, the support rod is placed inside the rotating drum and is slidably connected to its inner wall, two annular grooves are provided in the middle of the outer wall of the support rod, and straight grooves are provided on its outer wall in radial symmetry, and two groups of protruding rods are symmetrically fixedly connected to the inner wall of the rotating drum. In the initial state, a group of protruding rods near the top inside the rotating drum are placed inside an annular groove near the top of the outer wall of the support rod and are slidably connected to its inner wall.

[0014] Preferably, one end of the insertion rod close to the support rod is rotatably connected to a rotation block, and the rotation block is used to fix the position of the support rod after rotation.

[0015] Compared with related technologies, the portable integrated maintenance tool provided by the present invention has the following beneficial effects:

[0016] 1. Simplify tool carrying and reduce operation complexity

[0017] By integrating a dedicated slot for four-slot round nuts with a universal slot for removing universal nuts and a movable clamp into the wrench body, operators can handle a variety of repair scenarios with just one tool. When removing universal nuts, operators can remove the insert rod, use the universal slot, adjust the movable clamp, and adjust the wrench body shape when removing four-slot round nuts. This eliminates the need for frequent tool changes, significantly simplifying the repair process, reducing operational complexity, saving tool preparation time, and improving repair efficiency.

[0018] 2. Improve nut removal efficiency and reliability

[0019] The tool's dedicated slot design precisely fits the nut shape, avoiding damage to the nut caused by hammering with traditional tools. This protects the nut structure, extends the nut's service life, and reduces the difficulty and cost of repairs caused by nut damage. During the disassembly process, the coordination of the drum, plunger, and other components provides a stable and effective force application method, making the disassembly operation easier and more efficient, significantly improving nut removal efficiency compared to traditional methods.

[0020] For universal nuts of different models, the movable clamps can flexibly adjust the spacing and quickly adapt to a variety of nut sizes. It also achieves efficient disassembly and meets the needs of handling different nuts during maintenance work.

[0021] 3. Flexible adaptation to narrow working space

[0022] Through the special structural design of the movable plate rotation, plug-in rod and rotating drum, the shape can be adjusted according to the needs of the working space; it further optimizes the convenience of operation in a small space, effectively solves the problem of inconvenience of traditional tools in small spaces, reduces the difficulty of maintenance operations, and improves the feasibility and efficiency of operations in complex space environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic diagram of the structure of the portable integrated maintenance tool provided by the present invention;

[0024] Figure 2 for Figure 1 The structure diagram of the wrench body shown is as shown in FIG.

[0025] Figure 3 for Figure 1 The structural diagram of the partial cross section of the wrench body shown;

[0026] Figure 4 for Figure 3 The structural diagram of A shown;

[0027] Figure 5 for Figure 3 The structural diagram of B shown;

[0028] Figure 6 for Figure 1 A schematic structural diagram of the plug-in structure shown;

[0029] Figure 7 for Figure 1 The structural diagram of C shown;

[0030] Figure 8 for Figure 1 The structural diagram of the rotating drum shown;

[0031] Figure 9 for Figure 1 The schematic structural diagram of the drum cross section is shown.

[0032] Numbers in the figure: 1. Wrench body; 2. Fixed block; 3. Movable plate; 4. Special slot; 5. Universal slot; 6. Movable clamping block; 7. Rectangular clamping block; 8. Insert rod; 9. Rotating cylinder; 10. Bidirectional screw; 11. Roller; 12. Slider; 13. Spring 1; 14. Spherical clamping block; 15. Spherical slot; 16. Sliding plate; 17. Limit block; 18. Spring 2; 19. Trapezoidal block; 20. L-shaped rod; 21. Button; 22. Trapezoidal groove; 23. Support rod; 24. Annular groove; 25. Straight groove; 26. Protruding rod; 27. Rotating block. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0034] The specific implementation of the present invention is described in detail below with reference to specific embodiments.

[0035] Example 1

[0036] See also Figures 1 to 9, a portable integrated special tool for repair, the portable integrated special tool for repair comprises: a wrench body 1, an movable clamping block 6, a rectangular clamping block 7, an insertion rod 8 and a rotating cylinder 9. The wrench body 1 is composed of a fixed block 2 in the middle and movable plates 3 at both ends, wherein the middle part of the fixed block 2 is provided with a special slot 4 for adapting to a four-slot round nut, and a universal slot 5 is provided inside the movable plate 3. The ends of one movable plate 3 are symmetrically provided with movable clamping blocks 6 with adjustable spacing, and rectangular clamping blocks 7 for fixing the position of the movable plate 3 and the fixed block 2 are installed inside the opposite ends of the movable plate 3. The interior of the universal slot 5 is provided with an insertion rod 8, and the outer sleeve of the insertion rod 8 is provided with a rotating cylinder 9 for rotating after gripping. The two movable plates 3 are close to each other. A first mounting groove is provided at one end of the movable clamping block 6, and a bidirectional screw 10 is rotatably connected to the inner wall of the first mounting groove, and a roller 11 is fixedly connected to the middle part of the bidirectional screw 10. The outer wall of the roller 11 is provided with anti-slip points for increasing friction during rotation, and the outer walls at both ends thereof are symmetrically threaded with sliders 12, which are fixedly connected to the corresponding movable clamping block 6, and the movable clamping block 6 is slidably connected to the inner wall of the first mounting groove; when the universal nut needs to be removed, it can be decided whether to pull out the rod 8 or adjust the position according to the actual situation. When the space is large and the universal nut can be rotated one circle horizontally, the rotating drum 9 outside the rod 8 can be held and rotated to quickly remove it. If space is limited, the rod 8 can be pulled out.

[0037] Example 2

[0038] See also Figures 3 to 9, the two movable plates 3 have placement grooves at one end facing each other, and the rectangular blocks 7 are slidably connected to the inner walls of the corresponding placement grooves. The inner walls of the placement grooves are symmetrically fixedly connected to two springs 13, and the other ends of the springs 13 are fixedly connected to spherical blocks 14. Both sides of the rectangular blocks 7 have spherical grooves 15 corresponding to the spherical blocks 14. The spherical blocks 14 have at least one group of spherical grooves 15 that are engaged with the spherical grooves 15. The two ends of the fixed block 2 have grooves corresponding to the rectangular blocks 7, and in the initial state, the rectangular blocks 7 are placed in the corresponding grooves. The rectangular blocks 7 are engaged with the grooves at the ends of the fixed block 2, and the fixed block 2 is connected to the movable plate 3. The stable connection is a whole. The top of the rectangular block 7 is fixedly connected to a sliding plate 16. The top of the sliding plate 16 is provided with an anti-slip pattern to increase friction when sliding. The top of the two movable plates 3 facing each other is provided with a slide groove. The sliding plates 16 are placed inside the corresponding slide groove, and the bottom ends pass through the slide groove and are fixedly connected to the rectangular block 7. The tops of the two movable plates 3 facing each other are symmetrically fixed with limit blocks 17. The limit blocks 17 are used to limit the movable plate 3 from rotating 90 degrees around the rotation connection with the fixed block 2. The interior of the movable plate 3 near the universal card slot 5 is symmetrically provided with a second mounting groove, and the inner wall of the second mounting groove is fixedly connected with a spring 2. 18. One end of the spring 18 is fixedly connected to a trapezoidal block 19, which is slidably connected to the inner wall of the second mounting groove, and the side walls of the trapezoidal block 19 are fixedly connected to an L-shaped rod 20, which is slidably connected to the inner wall of the second mounting groove, and the other end of the L-shaped rod 20 is fixedly connected to a button 21. The outer wall of the insertion rod 8 is symmetrically provided with two groups of trapezoidal grooves 22 corresponding to the trapezoidal blocks 19. The two groups of trapezoidal grooves 22 are distributed up and down, and the distance between the two groups of trapezoidal grooves 22 is equal to the distance between the two trapezoidal blocks 19 inside the movable plate 3 after rotating 90 degrees. The top of the insertion rod 8 is hinged with a support rod 23, which is placed inside the rotating drum 9 The inner wall of the rotating drum 9 is symmetrically connected to the inner wall of the rotating drum 9, and two groups of protruding rods 26 are symmetrically fixedly connected. The ends of the protruding rods 26 are ball-shaped and match the inner walls of the annular grooves 24. In the initial state, a group of protruding rods 26 near the top of the rotating drum 9 are placed in an annular groove 24 near the top of the outer wall of the supporting rod 23 and are slidably connected to the inner wall of the rotating drum 9. The end of the inserting rod 8 close to the supporting rod 23 is rotatably connected to a rotating block 27. The rotating block 27 is used to fix the position of the supporting rod 23 after rotation.

[0039] The working principle of the portable integrated maintenance tool provided by the present invention is as follows:

[0040] 1. Remove the universal nut

[0041] When it is necessary to remove the universal nut, the first operation is to remove the insertion rod 8 inserted into the universal card slot 5; specifically, the user needs to press the buttons 21 on both sides of the wrench body 1, and the buttons 21 are connected to the L-shaped rod 20. Pressing the buttons 21 will cause the L-shaped rod 20 to move relative to each other under the guidance of the inner wall of the second mounting groove; the L-shaped rod 20 drives the corresponding trapezoidal block 19 to move synchronously. During this process, the trapezoidal block 19 compresses the second spring 18, so that the trapezoidal block 19 is disengaged from the trapezoidal groove 22 provided on the outer wall of the insertion rod 8. At this time, the insertion rod 8 loses the engagement restriction of the trapezoidal block 19; then, the user can easily pull the insertion rod 8 out of the universal card slot 5; after releasing the button 21, the compressed second spring 18 releases the elastic force, pushing the trapezoidal block 19 and the L-shaped rod 20 to reset and restore to the initial state;

[0042] Subsequently, the universal slot 5 inside the movable plate 3 at one end of the wrench body 1 can be used to remove the universal nut; if a universal nut of a different model is encountered, the movable clamping block 6 at the other end of the wrench body 1 can come into play; rotate the roller 11, and the bidirectional screw 10 fixedly connected at the axis of the roller 11 rotates accordingly; since the slider 12 is threadedly connected to the outer walls of the two ends of the bidirectional screw 10, and the slider 12 is fixed to the corresponding movable clamping block 6, and the movable clamping block 6 is slidably connected to the inner wall of the first mounting groove, under the restriction of the inner wall of the first mounting groove, the movable clamping block 6 follows the slider 12 to move axially along the bidirectional screw 10; by observing the size of the nut, continue to rotate the roller 11, adjust the two movable clamping blocks 6 to the appropriate position, so that the movable clamping block 6 can firmly clamp the nut, thereby performing the disassembly operation;

[0043] 2. Disassembly of four-slot round nuts

[0044] When it is necessary to remove the four-slot round nut, the shape of the wrench body 1 must be adjusted first; press the sliding plate 16 on the top of the movable plate 3 and push it, the bottom end of the sliding plate 16 is fixedly connected to the rectangular block 7, so the movement of the sliding plate 16 will drive the rectangular block 7 to slide in the placement slot; during the movement of the rectangular block 7, the inner walls of the spherical grooves 15 opened on both sides squeeze the spherical block 14, forcing the spherical block 14 to compress the spring 13 and disengage from the engaging state with the spherical groove 15; continue to push the sliding plate 16 until the spherical grooves 15 on the side walls of the rectangular block 7 are fully engaged with the two spherical blocks 14, at this time the other end of the rectangular block 7 is completely out of the groove inside the fixed block 2, and the movable plate 3 obtains the freedom of rotation;

[0045] Then, the movable plate 3 is rotated. Since one end of the movable plates 3 close to each other is fixedly connected to the limit block 17, the limit block 17 cooperates with the fixed block 2 to limit the movable plate 3 to be able to rotate 90 degrees around the rotation connection with the fixed block 2, so that the movable plate 3 and the fixed block 2 are in a vertical state; at this time, one hand holds the end of the insertion rod 8, and the other hand holds the rotating drum 9 to rotate and pull it outward; a group of protrusions 26 near the top of the rotating drum 9 rotates in the annular groove 24 inside the support rod 23. When it is rotated to the position of the straight groove 25, the rotating drum 9 can be pulled outward and the insertion rod 8 gradually appears; continue to pull the rotating drum 9, and a group of protrusions 26 near the bottom end of the rotating drum 9 contacts the support rod 23. Rotate the rotating drum 9 again and pull it outward. When the protrusion 26 rotates to correspond to the straight groove 25, it is pulled into the straight groove 25 near the bottom end of the outside of the support rod 23. At this time, the relative position adjustment of the rotating drum 9 and the insertion rod 8 is completed;

[0046] Press the button 21 on the side wall of any one of the movable plates 3 again, and the corresponding trapezoidal block 19 will retract into the second mounting slot under the drive of the L-shaped rod 20; insert the end of the insertion rod 8 away from the support rod 23 into the universal card slot 5, release the button 21, and the spring 2 18 corresponding to the card slot will be in a compressed state; continue to insert the insertion rod 8, and the end of the insertion rod 8 will squeeze the trapezoidal block 19 in the other universal card slot 5, causing it to compress the spring 2 18; when the trapezoidal groove 22 on the outer wall of the insertion rod 8 corresponds to the trapezoidal block 19, the spring 2 18 releases its elastic force, pushing the trapezoidal block 19 to engage with the corresponding trapezoidal groove 22, completing the fixation of the insertion rod 8 between the universal card slots 5 in the two movable plates 3;

[0047] Finally, rotate the drum 9, which drives the support rod 23 to rotate. When the drum 9 is rotated to be perpendicular to the insertion rod 8, the rotating block 27 connected to the end of the rotation rod 8 is rotated. The rotating block 27 fixes the position of the support rod 23 by cooperating with the insertion rod 8 and the support rod 23 to prevent it from rotating in the opposite direction. At this time, the user can use the special card slot 4 inside the fixing block 2 to remove the four-slot round nut; put the special card slot 4 on the outer wall of the four-slot round nut, and then hold the drum 9 and rotate it to disassemble it. Compared with the traditional wrench, this method can effectively reduce the space occupied by the wrench, which is particularly suitable for working in a small cabin space, reducing the difficulty of maintenance and improving work efficiency.

[0048] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention description and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A portable integrated maintenance tool, characterized in that: include: The wrench body (1) is composed of a fixed block (2) in the middle and movable plates (3) at both ends, wherein a special slot (4) adapted to a four-slot round nut is provided in the middle of the fixed block (2), and a universal slot (5) is provided inside the movable plate (3); A movable clamping block (6), wherein the ends of one movable plate (3) are symmetrically provided with movable clamping blocks (6) with adjustable spacing; A rectangular clamping block (7) is installed inside one end of the movable plate (3) facing each other and is used to fix the position of the movable plate (3) and the fixed block (2); An inserting rod (8) is provided inside the universal card slot (5); The rotating cylinder (9) is provided on the outside of the inserting rod (8) and is used for rotating after being grasped.

2. The portable integrated maintenance tool according to claim 1, characterized in that: One end of the two movable plates (3) close to the movable clamping block (6) is provided with a first mounting groove, the inner wall of the first mounting groove is rotatably connected to a bidirectional screw (10), the middle part of the bidirectional screw (10) is fixedly connected to a roller (11), and the outer walls of both ends are symmetrically threaded with sliders (12), the sliders (12) are fixedly connected to the corresponding movable clamping block (6), and the movable clamping block (6) is slidably connected to the inner wall of the first mounting groove.

3. The portable integrated maintenance tool according to claim 1, characterized in that: A placement groove is provided inside the opposite ends of the two movable plates (3), and the rectangular clamping blocks (7) are slidably connected to the inner walls of the corresponding placement grooves. The inner walls of the placement grooves are symmetrically fixedly connected with two springs (13), and the other ends of the springs (13) are fixedly connected with spherical clamping blocks (14). Spherical clamping grooves (15) corresponding to the spherical clamping blocks (14) are provided on both sides of the rectangular clamping blocks (7). The spherical clamping blocks (14) have at least one group of clamping grooves (15). Grooves corresponding to the rectangular clamping blocks (7) are provided inside the two ends of the fixed block (2), and the rectangular clamping blocks (7) are placed inside the corresponding grooves in the initial state.

4. The portable integrated maintenance tool according to claim 3, characterized in that: The top of each rectangular block (7) is fixedly connected to a sliding plate (16), and a sliding groove is provided on the top of each of the two movable plates (3) facing each other. The sliding plates (16) are placed inside the corresponding sliding grooves, and the bottom ends pass through the sliding grooves and are fixedly connected to the rectangular block (7).

5. The portable integrated maintenance tool according to claim 3, characterized in that: The tops of the two facing ends of the two movable plates (3) are symmetrically fixedly connected to limit blocks (17), and the limit blocks (17) are used to limit the movable plates (3) from rotating 90 degrees around the rotation connection with the fixed block (2).

6. The portable integrated maintenance tool according to claim 1, characterized in that: A second mounting groove is symmetrically provided at a position near the universal card slot (5) inside the movable plate (3), and a second spring (18) is fixedly connected to the inner wall of the second mounting groove. One end of the second spring (18) is fixedly connected to a trapezoidal block (19), and the side wall of the trapezoidal block (19) is fixedly connected to an L-shaped rod (20). The L-shaped rod (20) is slidably connected to the inner wall of the second mounting groove, and the other end of the L-shaped rod (20) is fixedly connected to a button (21).

7. The portable integrated maintenance tool according to claim 6, characterized in that: The outer wall of the insertion rod (8) is symmetrically provided with two groups of trapezoidal grooves (22) corresponding to the trapezoidal blocks (19). The two groups of trapezoidal grooves (22) are distributed up and down, and the distance between the two groups of trapezoidal grooves (22) is equal to the distance between the trapezoidal blocks (19) inside the two movable plates (3) after rotating 90 degrees.

8. The portable integrated maintenance tool according to claim 1, characterized in that: The top end of the insertion rod (8) is hinged with a support rod (23), which is placed inside the rotating drum (9) and slidably connected to the inner wall thereof. Two annular grooves (24) are provided in the middle of the outer wall of the support rod (23), and straight grooves (25) are provided on the outer wall thereof in radial symmetry. Two groups of protruding rods (26) are symmetrically fixedly connected to the inner wall of the rotating drum (9). In an initial state, a group of protruding rods (26) near the top end of the rotating drum (9) is placed inside an annular groove (24) near the top of the outer wall of the support rod (23) and slidably connected to the inner wall thereof.

9. The portable integrated maintenance tool according to claim 8, characterized in that: One end of the insertion rod (8) close to the support rod (23) is rotatably connected to a rotation block (27), and the rotation block (27) is used to fix the position of the support rod (23) after rotation.

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