Manual polishing equipment and method for water heating exterior trimming parts

Abstract

The invention relates to the related technical field of intelligent manufacturing equipment, discloses manual polishing equipment for water heating exterior trimming parts and a method thereof, and aims to solve the problems that the interiors of the exterior trimming parts with different sizes are not easily polished by a polishing head with a fixed size and a main shaft is easy to wind and hurt people due to exposure. The inner grinding blocks arranged in the radial direction of the inner grinding base are movably installed on the side portion of the inner grinding base, the inner grinding blocks are pushed by the springs to move outwards, and when the driving unit drives the inner grinding base to rotate, the interior of the water heating exterior trimming part can be comprehensively ground through the extending inner grinding blocks; therefore, the problem that the interior of the water heating exterior trimming part is not easy to comprehensively grind due to the fixed size of the grinding head is solved; the protective sleeve arranged on the outer side portion of the main shaft of the driving unit in a sleeving mode is movably installed on the side portion of the driving unit, the protective sleeve wraps and protects the rotating main shaft of the driving unit in the whole process, it is guaranteed that an operator does not make direct contact with a rotating area in the polishing process, and the problem that the rotating main shaft is wound and hurts people is avoided.

Description

Technical Field

[0001] This invention relates to the technical field of intelligent manufacturing equipment, and in particular to a manual polishing device and method for plumbing exterior parts. Background Technology

[0002] Manual grinding equipment for plumbing exterior components is used to process the exterior components of plumbing pipes, valves, and fittings. Although factories currently mostly use robotic arms to clamp and grind plumbing exterior components, a small number of defective components are still found during subsequent quality inspections. Therefore, operators can manually correct these defects (such as burrs inside valves) after inspection. Thus, although manual grinding machines rely on manual operation, their simplicity, convenience, and adaptability make them indispensable equipment in the plumbing industry.

[0003] Currently, due to the wide variety and varying sizes of plumbing exterior components, fixed-size grinding heads are insufficient for grinding the interior of components of different specifications. For example, for larger components, the grinding head cannot cover the entire grinding area, resulting in uneven grinding. To solve this problem, the traditional method is to manually reposition the plumbing exterior components to grind different parts. However, this method has significant drawbacks. Each adjustment requires manual operation, which is not only time-consuming and labor-intensive but also highly inefficient. Furthermore, during grinding, the spindle continuously rotates the grinding head. Since the spindle is usually exposed, this increases the risk of operators accidentally touching the rotating area. If an operator accidentally comes into contact with the rotating spindle or grinding head, they are highly likely to become entangled, causing injury and threatening their life. Summary of the Invention

[0004] This invention proposes a manual grinding device and method for plumbing exterior parts, which has the advantages of adaptive grinding inner diameter and rotation protection, in order to solve the problems mentioned in the background art that fixed-size grinding heads are not easy to grind the inside of exterior parts of different sizes and that exposed spindles are prone to entanglement and injury.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a manual grinding device for plumbing exterior parts, comprising: a power supply box, a drive unit mounted on the top for driving a rotating spindle, an inner grinding seat fixedly mounted at the end of the rotating spindle, and an inner grinding block movably mounted on the outer side of the inner grinding seat, which is pushed outward by a spring. After the inner grinding block pushed by the spring enters the interior of the plumbing exterior parts, it can grind the interior of the pipes of exterior parts with different inner diameters; a protective sleeve fitted on the side of the drive unit, and a spring fixedly connected between the protective sleeve and the drive unit, the protective sleeve providing protection for the rotating spindle; an outer grinding seat movably mounted at the end of the protective sleeve, the inner grinding seat retracting into the outer grinding seat to protect the inner grinding seat; the plumbing exterior parts are axially fed into the outer grinding seat, allowing the inner grinding seat to enter the interior of the exterior parts for grinding, and the rotating area is protected by the plumbing exterior parts, the outer grinding seat, and the protective sleeve.

[0006] Furthermore, an adjustment component is movably installed on the side of the inner grinding block, and a reset hole is provided in the middle of the inner side of the outer grinding seat. The adjustment component is attached to the inner wall of the reset hole to allow the inner grinding block to retract into the inner grinding seat.

[0007] Furthermore, a guide ring block is movably fitted on the inner side wall of the outer grinding seat, and a centering seat is movably installed on the inner side of the guide ring block.

[0008] Furthermore, the centering seat has multiple circular steps at its end.

[0009] Furthermore, a release pusher is movably fitted on the inner side of the outer grinding seat, and a spring is fixedly connected between the release pusher and the inner end of the outer grinding seat. A movable protrusion is fixedly connected to the inner side of the release pusher, and an outer grinding disc is fastened to the outer side of the outer grinding seat. The rotating spindle of the drive unit drives the inner grinding seat to rotate. The inner grinding seat is driven by the inner grinding block and the adjustment component. The adjustment component pushes the movable protrusion to make the outer grinding seat drive the outer grinding disc to rotate synchronously. After the rotational resistance of the outer grinding disc increases, the adjustment component passes over the movable protrusion, thereby cutting off the rotational power of the outer grinding disc.

[0010] Furthermore, the adjustment assembly includes an adjustment rod and an anti-detachment disc. The adjustment rod is a cylindrical rod with stepped grooves, and the anti-detachment disc is disc-shaped and is movably installed to the end of the adjustment rod.

[0011] Furthermore, the inner end of the release push seat is provided with an inclined surface, and an intermediate push rod is fixedly installed at the end of the release push seat.

[0012] Furthermore, a permanent magnet that magnetically attracts the guide ring block is fixedly installed on the inner side of the outer grinding base. A shielding post is hinged to the inner side of the outer grinding base, and a torsion spring is provided between the shielding post and the outer grinding base. The shielding post blocks the end of the permanent magnet, thereby reducing the magnetic attraction of the permanent magnet to the guide ring block.

[0013] Furthermore, a fixed protrusion is fixedly connected to the inner side of the outer grinding seat, which is arranged horizontally aligned with the movable protrusion.

[0014] A method for using a manual polishing device for plumbing exterior parts includes the following steps: S1. The spring pushes the protective sleeve, causing the outer grinding seat to move to the outside of the inner grinding seat. The adjusting component enters the reset hole. At the same time, the adjusting component compresses the spring through the inner grinding block, causing the inner grinding block to retract to the side of the inner grinding seat.

[0015] S2. The operator pushes the defective exterior pipe against the corresponding groove at the end of the centering seat.

[0016] S3. The operator applies axial thrust to the centering seat through the outer trim pipe. The centering seat drives the outer grinding seat to push the protective sleeve to compress the spring. The inner grinding seat enters the interior of the outer trim pipe, and the adjustment component gradually moves away from the reset hole.

[0017] S4. After the adjustment component disengages from the reset hole, the inner grinding block moves towards the inner wall of the outer trim pipe under the action of the spring until the outer end of the inner grinding block is attached to the inner wall of the outer trim pipe.

[0018] S5. The drive unit drives the inner grinding seat to rotate through the rotating spindle, and uses the inner grinding block to grind the inner wall of the outer trim pipe to eliminate defects; the operator pushes the outer trim pipe to move left and right along the axis of the outer grinding seat to achieve the comprehensive grinding of the inner grinding block inside the outer trim pipe.

[0019] S6. During the grinding process, the rotating spindle of the drive unit and the inner grinding seat are protected by the protective sleeve and the outer trim pipe. If the outer trim pipe is released, the protective sleeve, under the push of the elastic force, pushes the centering seat through the outer grinding seat to push the outer trim pipe away from the inner grinding seat until the outer grinding seat wraps the inner grinding seat again.

[0020] The present invention has the following beneficial effects: This invention provides a manual polishing device and method for plumbing exterior components. An inner polishing block is movably connected to the side of an inner polishing base, allowing the inner polishing block to move radially along the base. A spring connects the inner polishing block to the base, pushing the block outwards. When the drive unit rotates the inner polishing base, the extended inner polishing block penetrates deep into the interior of the plumbing exterior component, performing comprehensive polishing of all internal parts. This solves the problem in traditional polishing methods where the fixed size of the polishing head makes it difficult to perform comprehensive polishing of the interior of plumbing exterior components.

[0021] Furthermore, this application includes a protective sleeve movably mounted on the side of the drive unit, which is fitted over the outer side of the drive unit's main shaft. When the equipment is in its normal operating state, a spring pushes the protective sleeve to enclose the rotating main shaft, forming a safety barrier. Simultaneously, under the action of the outer grinding seat, the inner grinding block is retracted into the interior of the inner grinding seat, at which point the grinding diameter is minimized.

[0022] When operators prepare to grind the plumbing exterior components, they simply insert the exterior component pipe along the axial direction of the inner grinding block. During this process, the exterior component pipe contacts the outer grinding block and applies a certain thrust, causing the outer grinding block to move and thus releasing the restriction on the extension of the inner grinding block. This allows the inner grinding block, inserted into the exterior component pipe, to unfold and begin grinding. Furthermore, the protective sleeve maintains its protective cover over the rotating spindle of the drive unit throughout the grinding process, ensuring that operators do not directly contact the rotating area during grinding, thereby preventing entanglement injuries caused by accidental contact with the rotating spindle. Attached Figure Description

[0023] The accompanying drawings, which form part of this specification, illustrate embodiments of the invention and, together with the specification, serve to explain the principles of the invention.

[0024] The invention will be more clearly understood with reference to the accompanying drawings and the following detailed description, wherein: Figure 1 This is a schematic diagram of the overall external three-dimensional structure of the present invention; Figure 2 This is a schematic diagram of the installation position and three-dimensional structure of the protective sleeve of the present invention; Figure 3 This is a schematic diagram of the three-dimensional cross-sectional structure of the external grinding base of the present invention; Figure 4 This is a schematic diagram showing the position of each component on the drive unit of the present invention and its three-dimensional cross-sectional structure; Figure 5 This is a schematic diagram showing the position of each component on the inner grinding base of the present invention and its three-dimensional cross-sectional structure; Figure 6 This is a schematic diagram of the installation position and three-dimensional structure of the magnetic blocking column of the present invention; Figure 7 This is a schematic diagram showing the arrangement of the fixed and movable protrusions in this invention; Figure 8 This is a schematic diagram showing the position between the adjustment component and the movable protrusion in this invention; Figure 9 This is a schematic diagram of the three-dimensional structure of the centering base of the present invention; Figure 10 For the present invention Figure 7 Enlarged structural diagram of the area at point E in the middle; Figure 11 This is a schematic diagram of the three-dimensional structure of the external grinding base of the present invention; Figure 12 This is a schematic diagram of the three-dimensional structure of the push base of the present invention.

[0025] In the diagram: 1. Power supply box; 101. Drive unit; 2. Dust collection box; 3. Protective sleeve; 4. Outer grinding seat; 401. Fixing protrusion; 402. Reset hole; 5. Outer grinding disc; 6. Inner grinding seat; 601. Inner grinding block; 7. Adjustment assembly; 701. Adjustment rod; 702. Anti-detachment disc; 8. Release push seat; 801. Movable protrusion; 9. Middle push rod; 10. Centering seat; 1001. Guide ring block; 11. Permanent magnet; 12. Shielding post; A. Angled part; B. Rectangular guide groove. Detailed Implementation

[0026] 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.

[0027] Example 1, please refer to Figure 1 It is evident that the power supply housing 1 can be securely installed in the required position using bolts. A drive unit 101, bolted to the top of the power supply housing 1, has its rotating spindle extending to both sides. Dust collection boxes 2 are placed on both sides of the power supply housing 1. The rotating spindle of the drive unit 101 is located inside the dust collection box 2. During the polishing of the plumbing exterior components, the operator's work area is located inside the dust collection box 2. More specifically, in conjunction with... Figures 3-5It can be seen that an inner grinding seat 6 is fixedly installed at the end of the rotating spindle of the drive unit 101. The inner grinding seat 6 is cylindrical in shape, and an inner grinding block 601, which is pushed outward by a spring, is movably installed on the outer side of the inner grinding seat 6. The inner grinding block 601, pushed by the spring, always tends to move radially outward along the inner grinding seat 6. In this way, when the operator grinds the inside of the plumbing exterior pipe after quality inspection, the end of the plumbing exterior pipe is inserted along the axial direction of the inner grinding seat 6, and the inner grinding seat 6 is located inside the plumbing exterior pipe. The inner grinding block 601 on the outer side of the inner grinding seat 6 is pushed by the spring and abuts against the inner wall of the plumbing exterior pipe. When the rotating spindle on the drive unit 101 drives the inner grinding seat 6 to rotate, the inner grinding block 601 can grind the inside of the plumbing exterior pipe, thereby eliminating burrs and other defects inside the plumbing exterior pipe. The inner grinding block 601 primarily consists of flexible brush bristles (such as steel wire or nylon abrasive filaments). When the inner grinding block 601 grinds and polishes the inside of the pipe fitting, its bending characteristics create an elastic buffer, reducing the torque that causes the pipe fitting to rotate and preventing injury from excessive rotational torque. Furthermore, in practical applications, operators can use pipe wrenches to secure the external pipe fitting. If jamming occurs between the pipe fitting and the inner grinding block 601, the operator can use the relative rotation between the pipe wrench and the pipe to further ensure safety during internal pipe grinding. Moreover, in practical applications, it is necessary to ensure that the inner diameter of the pipe fitting is not flush with the inner grinding seat 6. Generally, the inner diameter of the pipe fitting should be at least 1.3 times the diameter of the inner grinding seat 6 to prevent the inner diameter of the pipe fitting from being close to the diameter of the inner grinding seat 6, which could cause the inner grinding seat 6 to directly rotate the pipe fitting before the inner grinding block 601 has fully extended.

[0028] Based on this, to prevent operators from coming into contact with the rotating spindle when manually grinding the inside of the plumbing exterior pipes, combined with... Figures 2-4 As can be seen, a protective sleeve 3 is fitted on the side of the drive unit 101, and a spring is fixedly connected between the protective sleeve 3 and the drive unit 101. Driven by the elastic force of the spring, the protective sleeve 3 always encloses the rotating spindle of the drive unit 101, thus preventing accidental contact by the operator. An outer grinding seat 4 is movably mounted on the end of the protective sleeve 3 using a bearing. When the inner grinding seat 6 retracts into the outer grinding seat 4, it protects the inner grinding seat 6, preventing direct contact by the operator. In this way, the outer grinding seat 4 and the protective sleeve 3 provide comprehensive protection for the rotating spindle and the inner grinding seat 6, preventing accidental contact by the operator with the rotating components.

[0029] Moreover, from Figures 3-5 and Figure 11It can be seen that an adjustment component 7 is movably mounted on the side of the inner grinding block 601. When the adjustment component 7 moves radially along the inner grinding base 6, it can synchronously drive the inner grinding block 601 to move. Correspondingly, a reset hole 402 is provided in the middle of the inner side of the outer grinding base 4, and the end of the reset hole 402 near the inner grinding base 6 is provided with an angle, i.e., attached... Figure 11 The diagram shows the angled portion near the fixed protrusion 401. When the adjusting component 7 is inserted axially along the reset hole 402, the inner grinding block 601, pushed by the spring, tends to move radially outward along the inner grinding seat 6, which in turn causes the adjusting component 7 to move radially outward synchronously along the inner grinding seat 6. After the adjusting component 7 contacts the inclined surface at the end of the outer grinding seat 4, the adjusting component 7 is guided by the inclined surface and inserted into the inner wall of the reset hole 402. During this process, the adjusting component 7 pulls on the inner grinding block 601, causing the adjusting component 7 to pull the inner grinding block 601 back into the inner grinding seat 6, and forcing the adjusting component 7 to compress the spring. Similarly, when the adjusting component 7 moves away from the reset hole 402, since the reset hole 402 no longer restricts the adjusting component 7 from extending radially along the inner grinding seat 6, the inner grinding block 601, pushed by the spring, can be pushed outward from the side of the inner grinding seat 6. It can be seen that when the outer grinding seat 4 moves to the outer side of the inner grinding seat 6, the inner grinding block 601 is forced to retract into the inner grinding seat 6 by the cooperation between the reset hole 402 and the adjustment component 7. On the one hand, this ensures that the inner grinding block 601 is normally retracted into the inner grinding seat 6; on the other hand, the retraction of the inner grinding block 601 reduces the space it occupies, making it easier for it to be wrapped and protected by the outer grinding seat 4.

[0030] A guide ring block 1001 is movably fitted on the inner side wall of the outer grinding seat 4 and on the outer side of the inner grinding seat 6, according to... Figure 3 , Figure 4 and Figure 9 It can be seen that the guide ring block 1001 can reciprocate along the axial direction of the outer grinding seat 4. The cross-sectional shape of the guide ring block 1001 is "Z" shaped, and there is a centering seat 10 mounted on the inner side of the guide ring block 1001 via a bearing. The centering seat 10 is annular, and multiple circular steps are opened at the end of the centering seat 10. Each circular step corresponds to a circle diameter, and the centering seat 10 and the inner grinding seat 6 are arranged coaxially. The advantage of this design is that when the operator attaches the end of the plumbing fitting pipe to the outer side of the centering seat 10, the fitting pipe aligns with the corresponding circular groove on the centering seat 10, ensuring that the placed fitting is arranged coaxially with the inner grinding seat 6. Moreover, since the fitting pipe abuts against the centering seat 10, the fitting pipe and the centering seat 10 can relatively wrap around the inner grinding seat 6, further avoiding the risk of contact between the operator and the inner grinding seat 6.

[0031] In practical application of this embodiment, under normal conditions, the protective sleeve 3, pushed by the spring, causes the outer grinding seat 4 to move to the outer side of the inner grinding seat 6. At this time, the adjusting component 7 is guided by the inclined surface at the end of the reset hole 402, forcing the adjusting component 7 to finally enter the reset hole 402. Figure 8 In the state shown, the side of the adjusting component 7 is attached to the inner wall of the reset hole 402. At the same time, the adjusting component 7 compresses the spring through the inner grinding block 601, forcing the inner grinding block 601 to retract to the side of the inner grinding seat 6. The actual grinding diameter of the inner grinding block 601 is at its minimum at this time.

[0032] When operators inspect the external plumbing components, any defective components can be manually ground and adjusted. Specifically, the operator uses pipe wrenches to clamp the external component pipe and positions its end against the corresponding groove on the end of the centering seat 10. The operator applies an axial thrust to the centering seat 10 through the external component pipe. The centering seat 10 then drives the outer grinding seat 4 to push against the protective sleeve 3, which in turn compresses the spring. During this process, the outer grinding seat 4 moves to the right relative to the inner grinding seat 6, with the direction referenced... Figure 3 or Figure 4 .

[0033] As the outer grinding seat 4 moves to the right, the inner grinding seat 6 will also enter the interior of the outer trim pipe, and the adjusting component 7 will gradually move away from the reset hole 402. Once the adjusting component 7 disengages from the reset hole 402, the restriction on the adjusting component 7 will be released. Next, the inner grinding block 601 moves towards the inner wall of the outer trim pipe under the action of the spring until its outer end contacts the inner wall of the outer trim pipe. During the rotation of the inner grinding seat 6 by the rotating spindle, the drive unit 101 uses the inner grinding block 601 to grind the inner wall of the outer trim pipe, thereby eliminating defects inside the outer trim pipe, such as burrs or weld slag.

[0034] During the actual grinding process, the operator only needs to push the outer trim pipe left and right along the axis of the outer grinding seat 4 to achieve full grinding of the interior of the outer trim pipe by the inner grinding block 601. During this process, the rotating spindle of the drive unit 101 and the inner grinding seat 6 are protected by the protective sleeve 3 and the outer trim pipe, preventing the operator from directly contacting the rotating parts and ensuring the safety of operation. Even if the operator accidentally loosens the clamp on the outer trim pipe during the grinding process, the protective sleeve 3 will then push the centering seat 10 through the outer grinding seat 4 to quickly push the outer trim pipe away from the inner grinding seat 6, until the outer grinding seat 4 completely wraps around the inner grinding seat 6 again, and the adjustment component 7 re-enters the reset hole 402, which is the initial state described above. This implementation method ensures that when the operator does not tighten the clamping of the outer trim pipe, the spring on the protective sleeve 3 will reset and force the grinding outer trim pipe to be quickly pushed out and away from the rotation area, thereby avoiding the problem of the outer trim pipe continuously rotating with the inner grinding seat 6 and causing accidental injury to the operator.

[0035] Example 2 is a further improvement on Example 1. Please refer to Example 1. Figure 3 , Figure 4 , Figures 6-8 It can be seen that a release pusher 8 is movably fitted inside the outer grinding seat 4. The release pusher 8 can reciprocate along the axial direction of the outer grinding seat 4, and a spring is fixedly connected between the release pusher 8 and the inner end of the outer grinding seat 4. Driven by the spring, the release pusher 8 always tends to move towards the inner grinding seat 6. A movable protrusion 801 extending from the inner wall of the reset hole 402 is fixedly connected to the inner side of the release pusher 8. Figure 7 , Figure 8 and Figure 12 It can be seen that the release push base 8 is circular in shape, with rounded corners at both ends of the movable protrusion 801. Multiple movable protrusions 801 are evenly arranged on the inner wall of the release push base 8. For more details, see... Figure 7 , Figures 10-12 It can be seen that a rectangular guide groove is provided on the inner side of the outer grinding seat 4, that is... Figure 11 At position B, the movable protrusion 801 is located in the guide groove. The guide groove's limiting effect allows the release pusher 8 to move the movable protrusion 801 along the axial direction of the outer grinding seat 4. In this second embodiment, there are four movable protrusions 801; the actual number can be adjusted as needed. In this second embodiment, the number of movable protrusions 801 generally corresponds to the number of inner grinding blocks 601. Since the multiple inner grinding blocks 601 are also arranged in a ring at equal angles on the outer side of the inner grinding seat 6, when the inner grinding blocks 601 drive the adjustment assembly 7 to rotate along the inner wall of the reset hole 402, the adjustment assembly 7 eventually attaches to the corresponding movable protrusion 801. Figure 8The state shown. In this way, when the rotating spindle on the drive unit 101 drives the inner grinding seat 6 to rotate, the inner grinding seat 6 uses the adjusting component 7 on the inner grinding block 601 to abut against the movable protrusion 801, thereby driving the outer grinding seat 4 to rotate synchronously via the movable protrusion 801. From Figures 1-3 It can be seen that the outer grinding seat 4 has an outer grinding disc 5 coaxially fastened with bolts on its outer side. The outer grinding disc 5 can be a polishing wheel or a grinding wheel. Under normal conditions, when the rotating spindle of the drive unit 101 drives the inner grinding seat 6 to rotate, the inner grinding seat 6 is driven by the inner grinding block 601 and the adjusting component 7, so that the adjusting component 7 pushes the movable protrusion 801 to make the outer grinding seat 4 drive the outer grinding disc 5 to rotate synchronously. In this way, the operator can use the rotation of the outer grinding disc 5 to manually polish the outer side of the plumbing exterior parts. Furthermore, if the operator accidentally touches the outer grinding disc 5, it will cause the rotational resistance of the outer grinding disc 5 to increase, which in turn will increase the rotational resistance of the outer grinding seat 4 and the movable protrusion 801. Then, the adjusting component 7 further compresses the spring through the inner grinding block 601 and causes the adjusting component 7 to pass over the movable protrusion 801, thereby cutting off the rotational power of the outer grinding disc 5 and avoiding the problem of entanglement and damage between the outer grinding disc 5 and the operator. Furthermore, since the outer grinding disc 5 in this application is only used for repairing defects on the outer side of plumbing exterior fittings, such as polishing, this type of grinding does not involve deep cutting of the fittings. Therefore, the transmission between the adjusting component 7 and the movable protrusion 801 can meet the existing polishing requirements. Based on this, it can be seen that in this application, the transmission between the adjusting component 7 and the movable protrusion 801 not only enables power transmission but also provides torque cutoff protection in case of overload, similar to a torque limiter. This ensures that operators will not suffer damage due to accidental activation when grinding plumbing exterior fittings.

[0036] Moreover, from Figure 5 As can be seen, the adjustment assembly 7 includes an adjustment rod 701 and an anti-detachment disc 702. The adjustment rod 701 is a stepped shaft, as detailed below... Figure 5 As shown, the outer side of the adjusting rod 701, closer to the anti-detachment disc 702, has a relatively smaller diameter, while the side farther from the anti-detachment disc 702 has a relatively larger diameter. The anti-detachment disc 702 is disc-shaped and is movably mounted to the end of the adjusting rod 701, allowing it to rotate only at the end of the adjusting rod 701. According to... Figure 3 and Figure 4It can be seen that, under normal conditions, when the outer grinding seat 4 encloses the inner grinding seat 6, the anti-detachment disc 702 abuts against the end of the reset hole 402. The anti-detachment disc 702 prevents the outer grinding seat 4 and the inner grinding seat 6 from easily separating axially. This method ensures that when the operator contacts the outer grinding disc 5, causing increased resistance, the outer grinding seat 4 and the outer grinding disc 5 will not continue to rotate. Simultaneously, the outer grinding seat 4 cannot move axially along the inner grinding seat 6. This avoids the problem of the outer grinding disc 5 accidentally causing the outer grinding seat 4 to move axially along the rotating spindle during the operator's contact with the outer grinding disc 5, ultimately leading to the accidental exposure of the inner grinding seat 6. To achieve controllable unlocking between the inner grinding seat 6 and the outer grinding seat 4, from... Figure 3 , Figure 4 and Figure 7 It can be seen that an inclined surface is provided on the inner end of the release push seat 8 and near the anti-detachment disc 702, such as Figure 12 As shown in section A, the inner wall of the outer grinding seat 4, at the contact point with the anti-detachment disc 702, is also provided with an inclined surface. According to... Figure 4 and Figure 11 As shown, when the release push seat 8 moves to the right and the inclined surfaces on the outer grinding seat 4 and the release push seat 8 align, the anti-detachment disc 702 moves along the inclined surface to facilitate disengagement. The axial movement of the release push seat 8 originates from the intermediate push rod 9 fixedly installed at its end, which faces the end of the guide ring block 1001. As described in Embodiment 1, when the outer trim pipe reaches the centering seat 10, the centering seat 10 pushes the release push seat 8 to move via the intermediate push rod 9 until the inclined surfaces in the middle of the release push seat 8 and the outer grinding seat 4 are aligned. The anti-detachment disc 702 then changes from its original end abutting the end of the reset hole 402 to its outer side abutting the inclined surface at the end of the release push seat 8 and the reset hole 402. This ensures that when the outer grinding seat 4 pushes the protective sleeve 3 to the right, the anti-detachment disc 702 can eventually enter the inner wall of the reset hole 402 using the inclined surface, and as the outer grinding seat 4 continues to move to the right, the anti-detachment disc 702 separates from the reset hole 402. At the same time, when the middle push rod 9 pushes the release push seat 8 to move to the right, the release push seat 8 synchronously drives the movable protrusion 801 to move to the right. This movement forces the movable protrusion 801 and the adjustment assembly 7 to move relative to each other. As mentioned above, the adjustment rod 701 is a stepped shaft. When the movable protrusion 801 moves to the right and moves to the outer part of the smaller diameter adjustment rod 701, the movable protrusion 801 and the adjustment rod 701 will no longer be in contact. This will also cause the adjustment rod 701 to no longer drive the outer grinding seat 4 to rotate through the movable protrusion 801.

[0037] Further improvements based on the above content, from Figure 4 and Figure 6It can be seen that a permanent magnet 11 is fixedly installed on the inner side of the outer grinding base 4, and the permanent magnet 11 can attract the guide ring block 1001 using magnetic force, forcing the centering seat 10 to tend to move inward into the outer grinding base 4. A shielding post 12 is hinged to the inner side of the outer grinding base 4, and a torsion spring is provided between the shielding post 12 and the outer grinding base 4. When the outer grinding base 4 stops rotating, the shielding post 12, under the action of the torsion spring, moves relatively away from the permanent magnet 11. At this time, the permanent magnet 11 is not blocked, and it can attract the centering seat 10. However, at this time, from Figure 4 It is clearly visible that the shielding post 12 is directly opposite the guide ring block 1001, forcing it to restrict the movement of the guide ring block 1001. The advantage of this design is that when the outer grinding seat 4 stops rotating, the centering seat 10 is attracted to the right by the permanent magnet 11 until the guide ring block 1001 abuts against the shielding post 12. During this process, the centering seat 10 pushes the intermediate push rod 9 and the release push seat 8 to the right through the guide ring block 1001. The movable protrusion 801 moves to the right to the outer part of the smaller diameter adjusting rod 701, but the end of the release push seat 8 does not cross the end of the reset hole 402. This ensures that when the outer grinding disc 5 and the outer grinding seat 4 stop rotating due to external force, the contact transmission between the adjusting rod 701 and the movable protrusion 801 can be released. However, the release push seat 8 does not unlock the anti-detachment disc 702 and the end of the reset hole 402. Conversely, if the outer grinding seat 4 continues to rotate while the centering seat 10 is being pushed into the outer grinding seat 4, the shielding column 12 will be deflected outward by centrifugal force. Figure 4 It can be seen that when the shielding post 12 deflects outward, because the cross-section of the centering seat 10 is "Z"-shaped, the outwardly deflected shielding post 12 does not obstruct the movement of the centering seat 10. As the centering seat 10 continues to push outward towards the grinding seat 4, the guide ring block 1001 pushes the release push seat 8 to the end of the reset hole 402 through the intermediate push rod 9, aligning the beveled ends of the release push seat 8 and the reset hole 402, thereby completing the unlocking between the anti-detachment disc 702 and the reset hole 402. Furthermore, combined with... Figure 7 and Figure 10It can be seen that a fixed protrusion 401 is fixedly connected to the inner side of the outer grinding base 4, which is horizontally aligned with the movable protrusion 801. Since there is only one fixed protrusion 401, when the movable protrusion 801 moves away from the adjusting rod 701 and the transmission is disengaged, there is one adjusting rod 701 in contact with the fixed protrusion 401 to ensure that the outer grinding base 4 has a tendency to rotate. The advantage of this design is that when the movable protrusion 801 and the adjusting rod 701 are in contact, since there are four adjusting rods 701 and movable protrusion 801 designed in this embodiment, it is necessary to ensure that the four adjusting rods 701 simultaneously overcome the elastic force of the springs on the four inner grinding blocks 601, that is, the adjusting rod 701 and the movable protrusion 801 can provide a relatively strong transmission strength; conversely, if all the movable protrusions 801 and the adjusting rod 701 are disengaged, only one adjusting rod 701 will be in contact with the fixed protrusion 401. Therefore, the transmission strength of the adjusting rod 701 driving the fixed protrusion 401 is relatively less than the former.

[0038] More specifically, in the actual application of this embodiment 2, when the equipment stops working, the rotating spindle of the drive unit 101 will not rotate, and the protective sleeve 3 will be pushed by the spring to move the outer grinding seat 4 toward the inner grinding seat 6 until the inner grinding seat 6 is retracted into the outer grinding seat 4. At this time, the end of the anti-detachment disc 702 abuts against the right end of the reset hole 402, and the adjusting rod 701 abuts against the inner side wall of the reset hole 402, thereby retracting the inner grinding block 601 to the side of the inner grinding seat 6. Under the action of the torsion spring, the shielding post 12 moves away from the permanent magnet 11. The permanent magnet 11 magnetically attracts the centering seat 10, forcing the centering seat 10 to move closer to the inside of the outer grinding seat 4. The guide ring block 1001 on the centering seat 10 moves to the right by the middle push rod 9 against the release push seat 8. The guide ring block 1001 moves to the right and abuts against the shielding post 12, restricting the centering seat 10 from moving further to the right. When the release push seat 8 drives the movable protrusion 801 to move to the right, the movable protrusion 801 moves to the outer part of the smaller diameter adjusting rod 701. The end of the release push seat 8 does not contact the anti-detachment disc 702. At this time, the equipment is in the stopped state. When the drive unit 101 starts and drives the rotating spindle to rotate, the inner grinding seat 6 drives the adjustment component 7 to rotate synchronously through the inner grinding block 601. The adjustment rod 701, which moves to the fixed protrusion 401, drives the outer grinding seat 4 to rotate. Specifically, since the outer grinding seat 4 does not overload during rotation, the adjustment rod 701 does not pass over the fixed protrusion 401 when it pushes the fixed protrusion 401. As the outer grinding seat 4 drives the outer grinding disc 5 to rotate, the shielding post 12 moves outward under centrifugal force and blocks the end of the permanent magnet 11, thereby weakening the magnetic attraction strength to the centering seat 10. Afterwards, the spring at the end of the pusher 8 is released, causing it to move towards the centering seat 10. Releasing the pusher 8 not only moves the movable protrusion 801 closer to the fixed protrusion 401, ensuring that all four movable protrusions 801 contact the outer side of the adjusting rod 701 with a larger diameter, but also allows the four adjusting rods 701 to push the corresponding movable protrusions 801 to move, ensuring that the outer grinding seat 4 has a certain rotational strength for subsequent grinding and polishing work, but also, when the pusher 8 pushes the middle push rod 9 to the left, the middle push rod 9 causes the centering seat 10 to move away from the outer grinding seat 4. At this time, the equipment is in a state of startup and no-load operation.

[0039] When external polishing of plumbing exterior parts is required, simply bring the plumbing exterior parts close to the outer polishing disc 5 for polishing and finishing. If, during this process, the operator comes into contact with the outer polishing disc 5, increasing the rotational resistance of the outer polishing disc 5, this will increase the movement resistance of the outer polishing base 4, forcing the outer polishing disc 5 to stop rotating. The inner polishing base 6 will drive the adjusting rod 701 past the movable protrusion 801, thereby preventing excessive rotational force of the outer polishing base 4 from causing injury to the operator. Furthermore, when the outer grinding seat 4 and outer grinding disc 5 stop rotating due to resistance, the shielding column 12 is no longer affected by centrifugal force and is thrown outward. Under the action of the torsion spring, it is moved away from the permanent magnet 11. The permanent magnet 11 uses magnetic attraction to move the centering seat 10 to the right. Then, as mentioned above regarding the state when the equipment is stopped, the movable protrusion 801 is finally disengaged from the adjusting rod 701. The adjusting rod 701 will only be driven by one fixed protrusion 401, which will greatly reduce the transmission strength. This ensures that when the outer grinding seat 4 and outer grinding disc 5 stop rotating due to resistance, the strength of the inner grinding seat 6 driving the outer grinding seat 4 to rotate is reduced, thereby reducing the risk of secondary injury to the operator. Therefore, it can be seen that although the inner grinding seat 6 continues to rotate when the outer grinding seat 4 is overloaded, because the adjusting rod 701 can only be driven by one fixed protrusion 401 in sequence, the actual output rotational strength of the outer grinding seat 4 is relatively reduced. After the operator removes the resistance restriction, the adjusting rod 701 drives the outer grinding seat 4 to rotate again through the fixed protrusion 401, and as mentioned above, until the adjusting rod 701 touches the fixed protrusion 401 again to rotate, and the equipment is started and unloaded again.

[0040] When grinding the interior of the plumbing exterior parts is required, the equipment is first started and placed in an unloaded state. Then, the end of the plumbing exterior part is placed into the corresponding groove of the centering seat 10. As the plumbing exterior part is placed into the centering seat 10 and moves to the right, the guide ring block 1001 pushes the release push seat 8 to the right through the middle push rod 9. On the one hand, this disengages the transmission between the movable protrusion 801 and the adjusting rod 701. On the other hand, the adjusting rod 701 still drives the outer grinding seat 4 to rotate through the fixed protrusion 401. Therefore, the shielding post 12 is always deflected outward and blocks the permanent magnet 11. As the centering seat 10 is continuously inserted, since the outwardly deflected shielding post 12 does not obstruct the movement of the centering seat 10, the release push seat 8 will continue to move to the right until the right end slope of the release push seat 8 is aligned with the right end slope of the reset hole 402. As the centering seat 10 is pushed further to the right, the anti-detachment disc 702 passes over the end of the reset hole 402 and enters the inner wall of the reset hole 402. Subsequently, when the centering seat 10 further pushes the outer grinding seat 4 to the right using the release push seat 8, the adjusting component 7 finally disengages from the reset hole 402. The inner grinding block 601 is pushed by the spring and comes into contact with the interior of the plumbing exterior component. The rotating spindle on the drive unit 101 drives the inner grinding block 601 to rotate, thus polishing the interior of the plumbing exterior component. After polishing is completed, the plumbing exterior component is removed, and the protective sleeve 3 is pushed by the spring again to make the outer grinding seat 4 wrap around the inner grinding seat 6, thus achieving the state of equipment startup and no-load operation.

Claims

1. A manual polishing device for plumbing exterior parts, characterized in that, include: The power supply box (1) is equipped with a drive unit (101) on the top for driving the rotating spindle to rotate. An inner grinding seat (6) is fixedly installed at the end of the rotating spindle. An inner grinding block (601) is movably installed on the outer side of the inner grinding seat (6) and is pushed outward by a spring. After the inner grinding block (601) pushed by the spring enters the interior of the water heating exterior parts, it can grind the interior of the pipes of different inner diameters of the exterior parts. The protective sleeve (3) is fitted on the side of the drive unit (101), and a spring is fixedly connected between the protective sleeve (3) and the drive unit (101). The protective sleeve (3) provides protection for the rotating spindle. The outer grinding seat (4) is movably installed at the end of the protective sleeve (3), and the inner grinding seat (6) is retracted into the outer grinding seat (4) to protect the inner grinding seat (6); The water-heating exterior trim is axially fed into the outer grinding seat (4), allowing the inner grinding seat (6) to enter the interior of the exterior trim for grinding. The rotating area is protected by the water-heating exterior trim, the outer grinding seat (4), and the protective sleeve (3).

2. The manual polishing equipment for plumbing exterior parts according to claim 1, characterized in that, An adjustment component (7) is movably installed on the side of the inner grinding block (601), and a reset hole (402) is provided in the middle of the inner side of the outer grinding seat (4). The adjustment component (7) is attached to the inner wall of the reset hole (402) to realize that the inner grinding block (601) is retracted into the inner grinding seat (6).

3. The manual polishing equipment for plumbing exterior parts according to claim 2, characterized in that, The inner wall of the outer grinding seat (4) is movably fitted with a guide ring block (1001), and a centering seat (10) is movably installed on the inner side of the guide ring block (1001).

4. The manual polishing equipment for plumbing exterior parts according to claim 3, characterized in that, The centering seat (10) has multiple circular steps at its end.

5. The manual polishing equipment for plumbing exterior parts according to claim 3, characterized in that, The inner side of the outer grinding seat (4) is movably fitted with a release push seat (8), and a spring is fixedly connected between the release push seat (8) and the inner end of the outer grinding seat (4). The inner side of the release push seat (8) is fixedly connected with a movable protrusion (801), and the outer grinding disc (5) is fastened to the outer side of the outer grinding seat (4). The rotating spindle of the drive unit (101) drives the inner grinding seat (6) to rotate. The inner grinding seat (6) is driven by the inner grinding block (601) and the adjustment component (7). The adjustment component (7) pushes the movable protrusion (801) to make the outer grinding seat (4) drive the outer grinding disc (5) to rotate synchronously. After the rotational resistance of the outer grinding disc (5) increases, the adjustment component (7) passes over the movable protrusion (801) to cut off the rotational power of the outer grinding disc (5).

6. The manual polishing equipment for plumbing exterior parts according to claim 5, characterized in that, The adjustment assembly (7) includes an adjustment rod (701) and an anti-detachment disc (702). The adjustment rod (701) is a cylindrical rod with a stepped groove, and the anti-detachment disc (702) is in the shape of a disc and is movably installed to the end of the adjustment rod (701).

7. The manual polishing equipment for plumbing exterior parts according to claim 5, characterized in that, The inner end of the release push seat (8) is provided with an inclined surface, and the end of the release push seat (8) is fixedly installed with an intermediate push rod (9).

8. The manual polishing equipment for plumbing exterior parts according to claim 7, characterized in that, The outer grinding base (4) is fixedly installed with a permanent magnet (11) that magnetically attracts the guide ring block (1001). A shielding column (12) is hinged to the inner side of the outer grinding base (4), and a torsion spring is provided between the shielding column (12) and the outer grinding base (4). The shielding column (12) blocks the end of the permanent magnet (11), thereby reducing the magnetic attraction of the permanent magnet (11) to the guide ring block (1001).

9. The manual polishing equipment for plumbing exterior parts according to claim 8, characterized in that, The inner side of the outer grinding seat (4) is fixedly connected to a fixed protrusion (401) that is horizontally aligned with the movable protrusion (801).

10. A method of using a manual polishing device for plumbing exterior parts, comprising using the manual polishing device for plumbing exterior parts as described in claim 4, characterized in that, Includes the following steps: S1. The spring pushes the protective sleeve (3) to move the outer grinding seat (4) to the outside of the inner grinding seat (6). The adjustment component (7) enters the reset hole (402). At the same time, the adjustment component (7) compresses the spring through the inner grinding block (601) so that the inner grinding block (601) returns to the side of the inner grinding seat (6). S2. The operator places the defective exterior pipe against the corresponding circular groove at the end of the centering seat (10); S3. The operator applies axial thrust to the centering seat (10) through the outer trim pipe. The centering seat (10) drives the outer grinding seat (4) to push the protective sleeve (3) to compress the spring. The inner grinding seat (6) enters the interior of the outer trim pipe. The adjusting component (7) gradually moves away from the reset hole (402). S4. When the adjustment component (7) is disengaged from the reset hole (402), the inner grinding block (601) moves towards the inner wall of the outer trim pipe under the action of the spring until the outer end of the inner grinding block (601) is attached to the inner wall of the outer trim pipe. S5. The drive unit (101) drives the inner grinding seat (6) to rotate by rotating the spindle, and uses the inner grinding block (601) to grind the inner wall of the outer trim pipe to eliminate defects; the operator pushes the outer trim pipe to move left and right along the axis of the outer grinding seat (4) to realize the inner grinding block (601) to grind the inside of the outer trim pipe. S6. During the grinding process, the rotating spindle of the drive unit (101) and the inner grinding seat (6) are protected by the protective sleeve (3) and the outer trim pipe. If the outer trim pipe is released, the protective sleeve (3) will push the centering seat (10) through the outer grinding seat (4) to push the outer trim pipe away from the inner grinding seat (6) until the outer grinding seat (4) wraps the inner grinding seat (6) again.

Images