Hand-push type derusting machine

Abstract

The utility model discloses a hand-push type derusting machine, which belongs to the technical field of derusting equipment, and adopts the technical scheme that the hand-push type derusting machine comprises a machine shell, a driving part, a derusting wheel, a handrail frame and a dust collecting device, a downward reserved opening is formed in the front end of the machine shell, a roller is rotatably arranged on the side edge of the machine shell, the driving part is arranged on the machine shell, the derusting wheel is rotatably connected in the machine shell, and the handrail frame is arranged in the machine shell. The rust removal wheel is connected with the output end of the driving part, the armrest frame is obliquely arranged at the rear end of the machine shell, and a handle for a user to grasp is arranged on the armrest frame; the dust collecting device comprises a dust collector, a dust collecting cover and a connecting pipe, universal wheels are arranged at the bottom of the dust collector, the dust collector and the machine shell are connected through a quick release lock, the dust collector can move along with the machine shell, the dust collecting cover is arranged in the machine shell and close to the reserved opening, and the dust collector and the dust collecting cover are communicated through the connecting pipe. The derusting machine is stable in grinding quality, dust pollution generated in the grinding process is small, vibration generated in the working process of the derusting machine can be absorbed, and using comfort is better.

Description

Technical Field

[0001] The utility model belongs to the technical field of rust removal equipment, and particularly relates to a hand-pushed rust remover. Background Art

[0002] Seawater has extremely strong corrosive ability. Especially for the surface of ships that are in contact with seawater for a long time, due to the limitations of the effectiveness and reliability of existing hull materials and anti-corrosion coatings, there is currently no suitable anti-corrosion coating that can completely solve the long-term corrosion problem of the ship surface. Therefore, most ships need to regularly clean and maintain the surface of the hull. Usually, the corroded parts on the surface of the ship hull are rust-removed and cleaned, and then an anti-corrosion coating is sprayed to avoid further corrosion of the hull.

[0003] Chinese Patent No. CN202322543787.3 discloses a hand-pushed rust remover, which includes a frame body. A hundred-leaf wheel is installed on the lower left side of the frame body through a bearing, and a driven belt pulley is fixedly installed on the front end of the hundred-leaf wheel extending out of the outside of the frame body; an installation plate is fixedly installed on the upper surface of the right side of the frame body, a driving motor is fixedly installed on the installation plate, a driving belt pulley is fixedly installed on the output end of the driving motor, and the driving belt pulley and the driven belt pulley are connected by a transmission belt; a moving wheel is installed on the lower right side of the frame body through a bearing; a push rod is fixedly installed at the right end of the frame body. When using this rust remover, the driving motor is connected to an external power supply. The user holds the push rod and pushes the moving wheel. After the driving motor works, the driving belt pulley drives the driven belt pulley to rotate through the transmission belt, and the hundred-leaf wheel rotates to polish and remove rust from the steel pipe piece (or the deck).

[0004] The above-mentioned rust remover uses the moving wheel as a fulcrum. The user controls the height of the hundred-leaf wheel by raising or lowering the push rod, so as to change the contact area between the hundred-leaf wheel and the steel pipe piece. However, the force exerted on the steel pipe piece in this operation mode is not uniform, which will directly affect the consistency of the polishing surface quality and lead to unstable rust removal quality. The user holds the push rod, and when the hundred-leaf wheel polishes the steel pipe piece, the vibration will be transmitted to the user's hand through the push rod. At the same time, during the rust removal and polishing process of the rust remover, a large amount of dust, rust chips and other dust will be generated. After the dust is lifted by the hundred-leaf wheel, it will cause regional dust pollution. The user is exposed to the dust at close range, and the working environment is harsh. If engaged in polishing operations for a long time, it will endanger the user's physical health, and the use comfort of this kind of rust remover is relatively low. Content of the Utility Model

[0005] The purpose of the utility model is to propose a hand-pushed rust remover in view of the above problems existing in the prior art. The technical problem to be solved by the utility model is: how to improve the use comfort of the rust remover.

[0006] The above technical purpose of the utility model can be achieved through the following technical solutions:

[0007] A hand - pushed rust remover, comprising a machine shell, a driving member, a rust - removing wheel, a handrail frame, and a dust - collecting device. The front end of the machine shell has a downward - facing reserved opening. A roller is rotatably arranged on the side of the machine shell. The driving member is arranged on the machine shell. The rust - removing wheel is rotatably connected inside the machine shell and is connected to the output end of the driving member. The lower end of the rust - removing wheel extends out of the reserved opening. The handrail frame is obliquely arranged at the rear end of the machine shell, and the handrail frame and the rust - removing wheel are distributed on both sides of the roller. The handrail frame has a handle for the user to grip. The dust - collecting device includes a vacuum cleaner, a dust - collecting hood, and a connecting pipe. The bottom of the vacuum cleaner has universal wheels. The vacuum cleaner is connected to the machine shell through a quick - release lock. The vacuum cleaner can move along with the machine shell. The dust - collecting hood is arranged inside the machine shell and close to the reserved opening. The connecting pipe connects the vacuum cleaner and the dust - collecting hood.

[0008] Through the above - mentioned technical solution, the dust - collecting device is connected to the machine shell through a quick - release lock. The roller contacts the ground or deck. At the same time, the rust - removing wheel contacts the surface to be polished. The user holds the handle and can push the rust remover and the dust - collecting device to move synchronously. After the driving member drives the rust - removing wheel to rotate, the rust - removing wheel starts to polish the contact surface. The dust and small - particle rust generated during the polishing process will be absorbed by the dust - collecting hood and finally collected in the vacuum cleaner, reducing the regional dust pollution near the rust remover and improving the use comfort of the rust remover.

[0009] In the above - mentioned hand - pushed rust remover, the quick - release lock includes an I - shaped lock and a lock body. The I - shaped lock has a lock rod, a connecting hook, and a locking hook. The connecting hook and the locking hook are respectively arranged at both ends of the lock rod. The connecting hook is rotatably connected to the side of the vacuum cleaner. The lock body is arranged on the outer wall of the machine shell. The lock body has a connected opening, a limiting groove, and a limiting hole. The opening allows the locking hook to enter the limiting groove. The limiting groove limits the locking hook. The limiting hole allows the lock rod to enter and limits the lock rod. The connecting hook is rotatably connected to the vacuum cleaner. The limiting groove limits the locking hook, and the limiting hole limits the lock rod. During the movement of the machine shell, the vacuum cleaner can be driven to move synchronously, so that the vacuum cleaner can move synchronously with the machine shell.

[0010] In the above - mentioned hand - pushed rust remover, a guiding surface for guiding the lock rod is arranged at the upper end of the limiting hole. The locking hook has a clearance fit with the limiting groove, and the locking hook can rotate circumferentially around its own axis in the limiting groove. During the process of the locking hook entering the limiting groove from the opening, the guiding surface can guide the lock rod, so that the lock rod can enter the limiting hole more easily. And the locking hook can rotate in the limiting groove. Even if the machine shell moves upward or downward, it does not affect the connection between the machine shell and the vacuum cleaner.

[0011] In the above-mentioned push-type rust remover, a main control switch is arranged on the handrail frame, and the main control switch is electrically connected to the driving member and the vacuum cleaner. The opening and closing of the driving member and the vacuum cleaner are integrated on the main control switch, which is convenient for the user to operate.

[0012] In the above-mentioned push-type rust remover, the handle is far away from the machine shell, and grip handles are sleeved on both ends of the handle. The grip handles are used to absorb the vibration of the handrail frame. There are assembly grooves in both grip handles that are in interference fit with the outer wall of the handle. A number of deformation grooves are circumferentially distributed on the inner wall of the assembly groove, and the deformation grooves allow the grip handles to elastically deform. After the vibration generated during the grinding process of the rust removal wheel is transmitted to the grip handle through the machine shell, the handrail frame, and the handle, the vibration is absorbed by the elastic deformation of the grip handle through the deformation grooves, thus preventing the user's hand from being affected by the vibration of the rust removal wheel and further improving the comfort of using this rust remover.

[0013] In the above-mentioned push-type rust remover, a through hole is provided in the handle, a positioning post is arranged at the bottom of the assembly groove, the positioning post is in interference fit with the through hole, and a deformation groove is provided between the positioning post and the assembly groove. After the positioning post is inserted into the through hole, the connection stability between the grip handle and the handle can be improved, making the grip handle not easy to fall off; during the deformation process of the deformation groove, the deformation groove can assist the outer end of the grip handle to deform accordingly, thus ensuring the vibration damping effect of the grip handle.

[0014] In the above-mentioned push-type rust remover, the driving member is located at the upper end of the machine shell and close to the rust removal wheel. A driving wheel is arranged at the output end of the driving member. A main shaft is arranged on the rust removal wheel. Bearing seats are arranged at both ends of the main shaft, and the two bearing seats are connected to the machine shell. A driven wheel is arranged on the main shaft, and the driven wheel is connected to the driving wheel through a synchronous belt. The driving member drives the main shaft and the rust removal wheel to rotate through the driving wheel, the synchronous belt, and the driven wheel; at the same time, the driving member and the rust removal wheel are used as counterweights, making the center of gravity of the machine shell forward. The structural design is reasonable, and the user does not need to lift the handrail frame forcefully to make the rust removal wheel contact the surface to be polished.

[0015] In the above-mentioned hand-held rust remover, an adjusting mechanism is provided at the front end of the machine shell. The adjusting mechanism includes a fixing frame, a support roller, and an adjusting screw. The fixing frame is arranged at the front end of the machine shell. The two ends of the support roller are rotatably connected to a first guide rod and a second guide rod. The fixing frame is provided with a first guide hole and a second guide hole. The first guide rod is slidably matched with the first guide hole, and the second guide rod is slidably matched with the second guide hole. The first guide rod and the second guide rod are connected by a connecting rod. The adjusting screw is rotatably connected to the fixing frame, and the lower end of the adjusting screw is threadedly connected to the connecting rod. The upper end of the adjusting screw is provided with a handwheel. The machine shell is supported by the adjusting mechanism and the rollers at the same time, so it is not laborious for the user to push the rust remover. Moreover, after the adjusting screw rotates, the ground clearance of the fixing frame can be adjusted, thereby changing the contact area between the rust removal wheel and the grinding surface. The rust removal wheel works at a set ground clearance, which can ensure the consistency of the grinding surface quality and the stability of the rust removal quality.

[0016] In the above-mentioned hand-held rust remover, a partition is arranged inside the machine shell, and an installation hole is opened on the partition. The lower end of the partition is connected to the dust collection cover, and the partition and the dust collection cover cooperate to divide the interior of the machine shell into a first inner cavity and a second inner cavity. The rust removal wheel is located in the first inner cavity, and a cleaning mechanism is arranged in the second inner cavity. The cleaning mechanism includes a bracket, an air pump, and a blowing box. The bracket is arranged in the second inner cavity, the air pump is arranged on the bracket, the blowing box is arranged in the installation hole, and the end face of the blowing box facing the rust removal wheel has a plurality of air holes. The blowing box is communicated with the air outlet of the air pump through a pipeline. After the rust remover finishes grinding, the air pump supplies compressed gas to the blowing box, and then blows it to the still rotating rust removal wheel through the air holes, so as to remove impurities such as dust and rust blocks adsorbed on the rust removal wheel, avoid the rust blocks from corroding the rust removal wheel itself, thereby improving its service life and facilitating maintenance.

[0017] In the above-mentioned hand-held rust remover, the inner wall of the front end of the machine shell has an arc surface. The blowing box is close to the upper side of the rust removal wheel, and the dust collection cover is close to the lower side of the rust removal wheel. A cover plate is arranged at the rear end of the machine shell, and a compensation hole communicating with the second inner cavity is arranged on the cover plate. After the air flow blown out from the air holes passes through the upper side of the rust removal wheel, it is guided by the arc surface, so that the air flow bypasses the lower side of the rust removal wheel, and then the dust collection cover absorbs the air flow into the vacuum cleaner, thereby preventing the air flow for cleaning the rust removal wheel from escaping to the surrounding.

[0018] To sum up, the beneficial effects of the present utility model compared with the prior art are as follows:

[0019] 1. The rust remover ensures a stable and adjustable ground clearance of the rust removal wheel through an adjustment mechanism and roller supports, guaranteeing the grinding quality of the rust removal wheel. The dust generated during the grinding process of the rust removal wheel is collected by a dust collection device, and after the rust removal wheel finishes grinding, the attached debris on the rust removal wheel is cleaned by a cleaning mechanism. This rust remover can prevent dust pollution during grinding from affecting the environment and the health of operators. Moreover, the handle can absorb the vibration generated during the operation of the rust remover, providing better comfort in use. This rust remover is suitable for large-area paint stripping, rust removal, and polishing operations on the decks, holds, and platforms of ships.

[0020] 2. The vacuum cleaner is connected to the machine housing through a quick-release lock. While facilitating loading and unloading, it can also ensure the synchronous movement of the vacuum cleaner and this rust remover, without affecting the adjustment of the tilt angle of the front end of the machine housing by the adjustment mechanism.

[0021] 3. With a reasonable structural design, directly using the driving part and the rust removal wheel as counterweight components makes the center of gravity of this rust remover forward. Operators can easily push this rust remover and the dust collection device to move synchronously, with a relatively low labor intensity for workers. Description of the Drawings

[0022] Figure 1 It is a schematic diagram of the internal structure of the machine housing;

[0023] Figure 2 It is a schematic diagram of the external structure of the embodiment;

[0024] Figure 3 It is for Figure 2 Another side structure diagram of

[0025] Figure 4 It is for Figure 2 The structure diagram after omitting the protective cover;

[0026] Figure 5 It is a schematic diagram of the side structure of the rust removal wheel;

[0027] Figure 6 It is a schematic diagram of the overall structure of the rust removal wheel;

[0028] Figure 7 It is a schematic diagram of a partial structure of the embodiment;

[0029] Figure 8 It is an exploded structure diagram of the quick-release lock;

[0030] Figure 9 It is a structure diagram after the quick-release lock is connected;

[0031] Figure 10 It is a partial schematic diagram of the armrest frame;

[0032] Figure 11 It is a cross-sectional schematic diagram of the handle;

[0033] Figure 12 is a schematic structural diagram of the front end of the housing;

[0034] Figure 13 is Figure 12 a schematic cross-sectional view of

[0035] Figure 14 is a schematic internal cross-sectional view of the housing;

[0036] Figure 15 is a schematic structural diagram of the cleaning mechanism.

[0037] Reference numerals: 100, housing; 110, reserved opening; 111, scraper; 120, roller; 130, partition; 131, mounting hole; 140, first inner cavity; 150, second inner cavity; 160, arc surface; 170, cover plate; 171, compensation hole; 180, guard;

[0038] 200, driving member; 210, driving wheel; 211, synchronous belt;

[0039] 300, rust removal wheel; 310, main shaft; 311, driven wheel; 320, bearing seat;

[0040] 400, handrail frame; 410, handle; 411, through hole; 420, master control switch; 430, grip; 431, assembly groove; 4311, deformation groove; 432, anti-slip pattern; 433, positioning post; 4331, deformation groove;

[0041] 500, dust collection device; 510, vacuum cleaner; 511, universal wheel; 520, dust collection cover; 530, connecting pipe;

[0042] 600, quick-release lock; 610, I-shaped lock; 611, lock rod; 612, connecting hook; 613, lock hook; 620, lock body; 621, opening; 622, limiting groove; 623, limiting hole; 6231, guiding surface;

[0043] 700, adjusting mechanism; 710, fixing frame; 711, first guiding hole; 712, second guiding hole; 713, reinforcing rib; 720, supporting roller; 721, first guiding rod; 722, second guiding rod; 723, positioning hole; 730, adjusting screw; 731, handwheel; 740, connecting rod;

[0044] 800, cleaning mechanism; 810, bracket; 820, air pump; 830, air supply box; 831, air hole. Detailed implementation manners

[0045] The following are specific embodiments of the present utility model, and in combination with the accompanying drawings, the technical solutions of the present utility model will be further described, but the present utility model is not limited to these embodiments.

[0046] A hand-pushed rust remover, as Figures 1 - 15 shown, this rust remover includes a machine shell 100, a driving member 200, a rust removal wheel 300, a handrail frame 400, and a dust collection device 500. The front end of the machine shell 100 has a downward reserved opening 110. A roller 120 is rotatably provided on the side of the machine shell 100. The roller 120 contacts the placement surface (such as the ground) and is used to support the overall weight of the machine shell 100 and the rust remover. The driving member 200 is arranged on the machine shell 100. The rust removal wheel 300 is rotatably connected inside the machine shell 100, and the rust removal wheel 300 is connected to the output end of the driving member 200. The lower end of the rust removal wheel 300 extends out of the reserved opening 110. The handrail frame 400 is inclined and arranged at the rear end of the machine shell 100, and the handrail frame 400 and the rust removal wheel 300 are distributed on both sides of the roller 120. The handrail frame 400 has a handle 410 for the user to grip; the dust collection device 500 includes a vacuum cleaner 510, a dust collection cover 520, and a connecting pipe 530. The bottom of the vacuum cleaner 510 has universal wheels 511. The vacuum cleaner 510 is connected to the machine shell 100 through a quick-release lock 600, so that the vacuum cleaner 510 can move following the machine shell 100. The dust collection cover 520 is arranged inside the machine shell 100 and close to the reserved opening 110. A scraper 111 is arranged on one side of the reserved opening 110 close to the dust collection cover 520, and the scraper 111 abuts against the ground; the connecting pipe 530 connects the vacuum cleaner 510 and the dust collection cover 520, and the connecting pipe 530 is a flexible pipe.

[0047] As Figures 7 - 9 shown, the quick-release lock 600 includes an I-shaped lock 610 and a lock body 620. The I-shaped lock 610 has a lock rod 611, a connecting hook 612, and a locking hook 613. The connecting hook 612 and the locking hook 613 are respectively arranged at both ends of the lock rod 611. The connecting hook 612 is rotatably connected to the side of the vacuum cleaner 510; the lock body 620 is arranged on the outer wall of the machine shell 100. The lock body 620 has a communicating opening 621, a limiting groove 622, and a limiting hole 623. The opening 621 allows the locking hook 613 to enter the limiting groove 622. The locking hook 613 has a clearance fit with the limiting groove 622, and the limiting groove 622 limits the locking hook 613. The limiting hole 623 allows the lock rod 611 to enter and limits the lock rod 611. A guiding surface 6231 for guiding the lock rod 611 is arranged at the upper end of the limiting hole 623. The lock rod 611 can swing in the limiting hole 623 and drive the locking hook 613 to rotate circumferentially along the axis of the locking hook 613 in the limiting groove 622.

[0048] A main control switch 420 is provided on the armrest frame 400. The main control switch 420 is connected to an external power supply, and is electrically connected to the driving member 200 and the vacuum cleaner 510. The main control switch 420 is used to independently control the opening and closing of the driving member 200 and the vacuum cleaner 510.

[0049] As Figure 2 , Figure 10 , Figure 11 shown, the handle 410 is located on the armrest frame 400 away from the machine housing 100. Both ends of the handle 410 are sleeved with grips 430. The grips 430 are used to absorb the vibration conducted by the armrest frame 400. There are fitting grooves 431 on the inner walls of the two grips 430 that are in interference fit with the outer wall of the handle 410. A number of deformation grooves 4311 are circumferentially distributed on the inner wall of the fitting groove 431. The cross-section of the deformation groove 4311 is trapezoidal, and the deformation groove 4311 allows the grip 430 to elastically deform.

[0050] The material of the grip 430 is elastically deformable rubber or silica gel, and the outer wall of the grip 430 has anti-slip lines 432. The material of the roller 120 is rubber, so as to prevent the vibration generated by the rust removal wheel 300 during operation from being conducted to the placement surface through the roller 120.

[0051] Furthermore, a through hole 411 is provided inside the handle 410. A positioning post 433 is integrally formed at the bottom of the fitting groove 431. The positioning post 433 is in interference fit with the through hole 411, so that the grip 430 is not easily detached from the handle 410; in order to prevent the outer end of the grip 430 from being not easily deformed after the positioning post 433 is inserted into the through hole 411, a deformation groove 4331 is provided between the positioning post 433 and the fitting groove 431, and the deformation groove 4331 can improve the deformation performance of the end of the grip 430.

[0052] As Figures 2 - 6 shown, the driving member 200 is a conventional motor or a stepping motor. The driving member 200 is located at the upper end of the machine housing 100 and close to the rust removal wheel 300. A driving wheel 210 is provided at the output end of the driving member 200. The driving member 200 and the rust removal wheel 300 are used as counterweights, so that the center of gravity of the machine housing 100 is forward, and the center of gravity is prevented from approaching the direction of the armrest frame 400. The rust removal wheel 300 can be a wire wheel, a chain drum or a flap wheel. A main shaft 310 is provided on the rust removal wheel 300. Bearing seats 320 are provided at both ends of the main shaft 310. The two bearing seats 320 are connected to the machine housing 100. A driven wheel 311 is also provided on the main shaft 310. The driven wheel 311 is connected to the driving wheel 210 through a synchronous belt 211. A protective cover 180 for protecting the synchronous belt 211 is provided outside the machine housing 100. After the driving wheel 210 at the output end of the driving member 200 drives the driving wheel 210 to rotate, the driving wheel 210 can drive the driven wheel 311, the main shaft 310 and the rust removal wheel 300 to rotate; in this embodiment, the rotation direction of the rust removal wheel 300 is the same as the forward direction of the roller 120.

[0053] As Figures 1 - 4 , Figures 12 - 14 shown, an adjustment mechanism 700 is provided at the front end of the housing 100. The housing 100 is supported by the adjustment mechanism 700 and the rollers 120 together. The adjustment mechanism 700 includes a fixed frame 710, a support roller 720, and an adjustment screw 730. The fixed frame 710 is provided at the front end of the housing 100. Reinforcing ribs 713 are provided on the fixed frame 710, and the reinforcing ribs 713 are welded to the front end of the housing 100. The support roller 720 is in contact with the placement surface (such as the ground). Guide rods 721 and 722 are respectively rotatably connected to both ends of the support roller 720. The structures of the guide rod 721 and the guide rod 722 are the same. The fixed frame 710 has a first guide hole 711 and a second guide hole 712. The guide rod 721 is slidably engaged with the first guide hole 711, and the guide rod 722 is slidably engaged with the second guide hole 712. The upper ends of the guide rod 721 and the guide rod 722 are connected by a connecting rod 740. The adjustment screw 730 is rotatably connected to the fixed frame 710, and the lower end of the adjustment screw 730 is threadedly connected to the connecting rod 740. A handwheel 731 is provided at the upper end of the adjustment screw 730. Since the positions of the rollers 120 on the housing 100 remain unchanged, after the handwheel 731 drives the adjustment screw 730 to rotate, the position of the connecting rod 740 on the adjustment screw 730 can be changed, and the guide rod 721 slides in the first guide hole 711 and the guide rod 722 slides in the second guide hole 712, thereby realizing the adjustment of the clearance between the fixed frame 710 and the ground. In other words, the inclination angle of the front end of the housing 100 is adjusted by the adjustment screw 730, and then the contact area between the rust removal wheel 300 and the surface to be polished is changed. In some embodiments, a plurality of positioning holes 723 are provided at intervals along the height direction of the guide rod 721 and the guide rod 722. Both ends of the connecting rod 740 are connected to the guide rod 721 and the guide rod 722 through the positioning holes 723.

[0054] As Figure 1 , Figure 14 shown, a partition 130 is provided inside the housing 100. Mounting holes 131 are provided in the partition 130. The lower end of the partition 130 is connected to the dust collection hood 520, and the partition 130 and the dust collection hood 520 cooperate to divide the interior of the housing 100 into a first inner cavity 140 and a second inner cavity 150. The rust removal wheel 300 is located in the first inner cavity 140, and a cleaning mechanism 800 is provided in the second inner cavity 150. The cleaning mechanism 800 is used to clean the debris attached to the rust removal wheel 300.

[0055] As Figure 1 , Figure 15As shown, the cleaning mechanism 800 includes a bracket 810, an air pump 820, and a blower box 830. The bracket 810 is disposed in the second inner cavity 150. The air pump 820 is disposed on the bracket 810 and electrically connected to the master control switch 420. The blower box 830 is disposed in the mounting hole 131. The end face of the blower box 830 facing the rust removal wheel 300 has a plurality of air holes 831. The blower box 830 is communicated with the air outlet of the air pump 820 through a pipeline.

[0056] As Figure 1 , Figure 7 , Figure 14 As shown, the inner wall at the front end of the casing 100 has a curved surface 160. The airflow blown out from the air holes 831 is guided by the curved surface 160, so that the airflow in the first inner cavity 140 can move towards the dust collection hood 520. The blower box 830 is located above the rust removal wheel 300, and the dust collection hood 520 is located below the rust removal wheel 300. A cover plate 170 is hinged to the rear end of the casing 100. A compensation hole 171 communicating with the second inner cavity 150 is provided on the cover plate 170. The compensation hole 171 compensates air for the air inlet of the air pump 820.

[0057] The working principle of the present utility model is as follows:

[0058] Taking a marine deck as an example: Place the present rust removal machine and the vacuum cleaner 510 in the area to be polished on the deck. Insert the locking hook 613 into the limiting groove 622 from the opening 621. During the process that the locking hook 613 enters the bottom of the limiting groove 622, the locking rod 611 enters the limiting hole 623 accordingly. Then connect the connecting pipe 530 to the vacuum cleaner 510. The connection between the vacuum cleaner 510 and the rust removal machine is completed, and the vacuum cleaner 510 can move synchronously with the casing 100. The master control switch 420 is connected to an external power supply through a wire. At this time, the whole rust removal machine is borne by the rollers 120 and the support rollers 720. The user manually rotates the handwheel 731 to rotate the adjusting screw rod 730, so as to change the ground clearance of the fixing frame 710 (or the front end of the casing 100), and further change the contact area between the rust removal wheel 300 and the deck.

[0059] Turn on the driving member 200 and the vacuum cleaner 510 through the master control switch 420. The output end of the driving member 200 can drive the driving wheel 210 to rotate, and the driving wheel 210 drives the synchronous belt 211, the driven wheel 311, the main shaft 310, and the rust removal wheel 300 to rotate. The rust removal wheel 300 can remove dirt and rust layers on the deck surface. At the same time, the vacuum cleaner 510 is turned on to form a negative pressure area at the dust collection cover 520, thereby sucking away small particle dust in the inner cavity 140, avoiding dust pollution during grinding and affecting the health of users. The user can push the whole rust removal machine and the vacuum cleaner 510 by holding the handle 430, so as to perform large-area paint stripping, rust removal, and polishing operations on the deck. Since the rotation direction of the rust removal wheel 300 is the same as the forward direction of the roller 120, and the center of gravity of the rust removal machine is forward, it is more labor-saving for the user to push the rust removal machine forward, and the contact area between the rust removal wheel 300 and the deck always remains within the set range, and the grinding quality is stable.

[0060] During the process of the rust removal wheel 300 grinding the deck, the vibration generated and the vibration generated by the driving member 200 itself are conducted to the handle 430 through the machine shell 100. The handle 430 absorbs part of the vibration in the form of its own deformation, avoiding this kind of vibration from affecting the user holding the handle 430, and the deformation groove 4311 and the deformation groove 4331 on the handle 430 can further improve its vibration damping performance.

[0061] After the rust removal work is completed, with the roller 120 as the fulcrum, the user presses down the handrail frame 400, causing the front end of the machine shell 100 to tilt up. The rust removal wheel 300 rotates idly and throws out the sundries adsorbed on the rust removal wheel 300. Then turn on the air pump 820, and the air supply box 830 blows air on the rotating rust removal wheel 300 through the air holes 831 to further remove sundries such as rust attached to the rust removal wheel 300. The airflow blown out from the air holes 831 is guided towards the dust collection cover 520 direction by the arc surface 160 after passing over the rust removal wheel 300, that is, the airflow in the inner cavity 140 flows in a circular shape and the flow direction is the same as the rotation direction of the rust removal wheel 300. The negative pressure at the dust collection cover 520 continues to suck dust and small particle sundries into the vacuum cleaner 510, thus avoiding dust flying during the cleaning of the rust removal wheel 300. After the dust, rust blocks and other impurities adsorbed on the rust removal wheel 300 are removed, it can effectively prevent the rust blocks from corroding the rust removal wheel 300 itself, thereby extending its service life.

[0062] After the rust removal wheel 300 is cleaned, the user turns off the vacuum cleaner 510, the driving member 200, and the air pump 820, then raises the handrail frame 400, making the support roller 720 rest against the placement surface again. Then take out the locking hook 613 from the limit groove 622, and the vacuum cleaner 510 and the machine shell 100 are unlocked. Then remove the connecting pipe 530 from the vacuum cleaner 510, and the vacuum cleaner 510 can be removed separately and cleaned itself.

[0063] The specific embodiments described herein are merely illustrative of the spirit of the present utility model; those skilled in the art to which the present utility model pertains may make various modifications or supplements to the described specific embodiments or use similar ways for substitution, but will not deviate from the spirit of the present utility model or exceed the scope defined by the appended claims.

Claims

1. A hand - pushed rust remover, characterized in that: It includes a housing (100), a driving member (200), a rust-removing wheel (300), a handrail (400), and a dust collection device (500). The front end of the housing (100) has a downward reserved opening (110). Rollers (120) are rotatably provided on the side of the housing (100). The driving member (200) is arranged on the housing (100). The rust-removing wheel (300) is rotatably connected inside the housing (100), and the rust-removing wheel (300) is connected to the output end of the driving member (200). The lower end of the rust-removing wheel (300) extends out of the reserved opening (110). The handrail (400) is obliquely arranged at the rear end of the housing (100), and the handrail (400) and the rust-removing wheel (300) are distributed on both sides of the rollers (120). The handrail (400) has a handle (410) for the user to grip. The dust collection device (500) includes a vacuum cleaner (510), a dust collection hood (520), and a connecting pipe (530). The bottom of the vacuum cleaner (510) has universal wheels (511). The vacuum cleaner (510) is connected to the housing (100) through a quick-release lock (600). The vacuum cleaner (510) can move with the housing (100). The dust collection hood (520) is arranged inside the housing (100) and close to the reserved opening (110). The connecting pipe (530) connects the vacuum cleaner (510) and the dust collection hood (520).

2. The push-type rust remover according to claim 1, wherein: The quick-release lock (600) includes an I-shaped lock (610) and a lock body (620). The I-shaped lock (610) has a lock rod (611), a connecting hook (612), and a locking hook (613). The connecting hook (612) and the locking hook (613) are respectively arranged at both ends of the lock rod (611). The connecting hook (612) is rotatably connected to the side of the vacuum cleaner (510). The lock body (620) is arranged on the outer wall of the housing (100). The lock body (620) has a communicating opening (621), a limiting groove (622), and a limiting hole (623). The opening (621) allows the locking hook (613) to enter the limiting groove (622). The limiting groove (622) limits the locking hook (613). The limiting hole (623) allows the lock rod (611) to enter and limits the lock rod (611).

3. The push-type rust remover according to claim 2, wherein: A guiding surface (6231) for guiding the lock rod (611) is provided at the upper end of the limiting hole (623). The locking hook (613) has a clearance fit with the limiting groove (622), and the locking hook (613) can rotate circumferentially along its own axis in the limiting groove (622).

4. The push-type rust remover according to claim 1, characterized in that: A master control switch (420) is arranged on the handrail (400). The master control switch (420) is electrically connected to the driving member (200) and the vacuum cleaner (510).

5. The push-type rust remover according to claim 1, wherein: The handle (410) is away from the housing (100). Grips (430) are sleeved on both ends of the handle (410). The grips (430) are used to absorb the vibration of the handrail (400). Assembly grooves (431) that are in interference fit with the outer wall of the handle (410) are formed in both of the grips (430). A plurality of deformation grooves (4311) are circumferentially distributed on the inner wall of the assembly groove (431). The deformation grooves (4311) allow the grips (430) to elastically deform.

6. The push-type rust remover according to claim 5, characterized in that: A through hole (411) is formed in the handle (410). A positioning post (433) is arranged at the bottom of the assembly groove (431). The positioning post (433) is in interference fit with the through hole (411). A deformation groove (4331) is formed between the positioning post (433) and the assembly groove (431).

7. The push-type rust remover according to any one of claims 1-6, characterized in that: The driving member (200) is located at the upper end of the housing (100) and close to the rust removal wheel (300). A driving wheel (210) is arranged at the output end of the driving member (200). A main shaft (310) is arranged on the rust removal wheel (300). Bearing seats (320) are arranged at both ends of the main shaft (310). The two bearing seats (320) are connected to the housing (100). A driven wheel (311) is arranged on the main shaft (310). The driven wheel (311) is connected to the driving wheel (210) through a synchronous belt (211).

8. The push-type rust remover according to claim 7, wherein: An adjusting mechanism (700) is arranged at the front end of the housing (100). The adjusting mechanism (700) includes a fixing frame (710), a support roller (720), and an adjusting screw (730). The fixing frame (710) is arranged at the front end of the housing (100). Guide rods one (721) and two (722) are rotatably connected to both ends of the support roller (720). A first guide hole (711) and a second guide hole (712) are formed in the fixing frame (710). The guide rod one (721) is in sliding fit with the first guide hole (711). The guide rod two (722) is in sliding fit with the second guide hole (712). The guide rod one (721) and the guide rod two (722) are connected through a connecting rod (740). The adjusting screw (730) is rotatably connected to the fixing frame (710). The lower end of the adjusting screw (730) is in threaded connection with the connecting rod (740). A handwheel (731) is arranged at the upper end of the adjusting screw (730).

9. The push-type rust remover according to any one of claims 1-6, characterized in that: A partition plate (130) is arranged inside the casing (100), and an installation hole (131) is formed in the partition plate (130); the lower end of the partition plate (130) is connected to the dust collection hood (520), and the partition plate (130) and the dust collection hood (520) cooperate to divide the interior of the casing (100) into a first inner cavity (140) and a second inner cavity (150). The rust removal wheel (300) is located in the first inner cavity (140), and a cleaning mechanism (800) is arranged in the second inner cavity (150); the cleaning mechanism (800) includes a bracket (810), an air pump (820), and a air supply box (830). The bracket (810) is arranged in the second inner cavity (150), the air pump (820) is arranged on the bracket (810), the air supply box (830) is arranged in the installation hole (131), and a plurality of air holes (831) are formed on the end face of the air supply box (830) facing the rust removal wheel (300). The air supply box (830) is communicated with the air outlet of the air pump (820) through a pipeline.

10. The push-type rust remover according to claim 9, characterized in that: The inner wall at the front end of the casing (100) has an arc surface (160). The air supply box (830) is located above the rust removal wheel (300), and the dust collection hood (520) is located below the rust removal wheel (300); a cover plate (170) is arranged at the rear end of the casing (100), and a compensation hole (171) communicating with the second inner cavity (150) is formed in the cover plate (170).

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