A portable reinforced computer

Abstract

The present invention discloses a portable reinforced computer, including a metal case and a small water tank fixed on the top of the metal case, both sides of the metal case are fixed with assembly covers, both assembly covers are penetrated with installation slots, both inner walls of the installation slots are fixed with dustproof nets, and the metal case is provided with a blower mechanism inside, and the blower mechanism is used to discharge the heat in the metal case to achieve heat dissipation and ventilation. The present invention relates to the field of computer technology. The portable reinforced computer can achieve heat dissipation by generating airflow through reciprocating motion through the setting of the blower mechanism, the setting of the swing component is convenient for adjusting the direction of the airflow while generating the airflow, the air outlet direction is wider, and the heat dissipation efficiency is improved, the setting of the water absorption and heat dissipation mechanism is convenient for achieving automatic water pumping for heat absorption while generating the airflow, and the setting of the transmission dust removal and ventilation mechanism is to achieve efficient heat dissipation.

Description

Technical Field

[0001] The invention relates to the technical field of computers, in particular to a portable reinforced computer. Background Art

[0002] A computer is generally composed of an external case and internal accessories. As a part of computer accessories, the case mainly plays the role of placing and fixing various computer accessories, and plays a supporting and protective role. Moreover, the computer case plays the important role of shielding electromagnetic radiation. The case generally includes an outer shell, a bracket, various switches and indicator lights on the panel, etc. The outer shell is made of a combination of steel plates and plastics, has high hardness, and mainly plays the role of protecting the internal components of the case.

[0003] Existing computer mainframes mostly use fans for heat dissipation, which has the following disadvantages: the fan heat dissipation coverage is small, the air outlet direction is single, which affects the heat dissipation effect, and the heat dissipation efficiency only through the fan is low. In addition, a dustproof net is generally provided on the chassis to protect the internal components of the chassis from dust. However, during actual use, dust is easily adhered to the surface of the dustproof net, which affects ventilation and further affects the heat dissipation efficiency. Therefore, the present invention proposes a portable reinforced computer to solve the above-mentioned problems. Summary of the invention

[0004] In view of the deficiencies of the prior art, the present invention provides a portable reinforced computer, which solves the problems mentioned in the above background technology.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a portable reinforced computer, comprising a metal chassis and a small water tank fixed on the top of the metal chassis, assembly covers are fixed on both sides of the metal chassis, installation grooves are penetrated through the two assembly covers, dustproof nets are fixed on the inner walls of the two installation grooves, a blower mechanism is arranged inside the metal chassis, the blower mechanism is used to discharge the heat in the metal chassis to achieve heat dissipation and ventilation, support reinforcement rods are fixed at the corners of the inner wall of the metal chassis, and movable universal wheels are installed at the four corners of the bottom of the metal chassis.

[0006] Preferably, the blowing mechanism comprises a small bellows fixed on the upper inner wall of the metal chassis, a push-pull rod penetrating to the outside of the small bellows is fixed on the internal piston of the small bellows, a reduction motor is fixed to the inside of the metal chassis through a support plate, a driving frame is slidably installed on the upper inner wall of the metal chassis, a rotating bar is fixed to one end of the output shaft of the reduction motor, a driving rod used in conjunction with the driving frame is penetrated and fixed on the rotating bar, one end of the driving frame is fixed to the end of the push-pull rod through a guide rod, a connecting pipe is fixed to the inner wall of the metal chassis, a swing pipe is rotatably installed on the inner wall of the connecting pipe, a plurality of heat dissipation outlets are connected to the surface of the swing pipe, an air outlet of the small bellows is connected to a duct, one end of the duct is connected to the surface of the connecting pipe, a foam fan plate is fixed to the surface of the swing pipe, a swing assembly is arranged between the swing pipe and the driving frame, the swing assembly is used to drive the swing pipe to rotate back and forth to adjust the air outlet direction, a water absorption and heat dissipation mechanism is arranged between the small bellows and the small water tank, and a transmission dust removal and ventilation mechanism is arranged between the push-pull rod and the metal chassis.

[0007] Preferably, the swing assembly includes a folding strip fixed below the driving frame, a roller is rotatably mounted on the inner wall of the metal chassis, a curved groove is provided on the surface of the folding strip, a row bar adapted to the curved groove is fixed below the folding strip, an upper pulley is fixed on the surface of the roller, a lower pulley is fixed on the surface of the swing tube, and the surfaces of the upper pulley and the lower pulley are connected by a belt drive.

[0008] Preferably, the water absorption and heat dissipation mechanism includes a piston cylinder fixed below the small bellows, a piston is slidably mounted on the inner wall of the piston cylinder, a connecting rod is fixed to one end of the piston, the connecting rod and the push-pull rod are fixed by a connecting rod, a heat-conducting coil is fixed to the inner wall of the metal chassis, the end of the piston cylinder is connected to a suction pipe, one end of the suction pipe passes through the metal chassis and is connected to the bottom of the small water tank, the end of the piston cylinder is also connected to a discharge pipe, one end of the discharge pipe is connected to one end of the heat-conducting coil, the other end of the heat-conducting coil is connected to a return pipe, one end of the return pipe passes through the metal chassis and is connected to the top of the small water tank, a one-way valve 1 is fixed to the surface of the suction pipe, and a two-way valve is fixed to the surface of the discharge pipe.

[0009] Preferably, the transmission dust removal and ventilation mechanism includes a rack slidably mounted on the top of the inner wall of the metal chassis, the rack is fixed to the push-pull rod by an inclined rod, a horizontal axis is rotatably arranged on the metal chassis, a gear meshing with the rack is fixed on the surface of the horizontal axis, fixed shafts are fixed at both ends of the horizontal axis, swing bars are fixed on the surfaces of the two fixed shafts, brush plates are fixed on the inner sides of the two swing bars through spring rods, and silent bristles in contact with the corresponding dustproof nets are fixed on the inner sides of the two brush plates.

[0010] Preferably, the heat-conducting coil is made of copper pipe, and a water injection pipe is connected to the top of the small water tank.

[0011] Preferably, when the rowing rod moves back and forth, it cooperates with the curved groove to drive the roller to realize reciprocating rotation.

[0012] The present invention provides a portable reinforced computer. Compared with the prior art, it has the following beneficial effects: The portable reinforced computer can achieve heat dissipation by generating airflow through reciprocating motion through the setting of the blower mechanism. The setting of the swing component makes it possible to adjust the direction of the airflow while generating the airflow, so that the air outlet direction is wider and the heat dissipation efficiency is improved. The setting of the water absorption and heat dissipation mechanism makes it possible to automatically pump water for heat absorption while generating the airflow. The setting of the transmission dust removal and ventilation mechanism can automatically clean the dustproof net while achieving efficient heat dissipation, so that normal ventilation can be achieved and the heat dissipation efficiency can be further improved. The various mechanisms have high linkage and can be achieved by only one reduction motor drive, thus avoiding the use of numerous electrical components and saving costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the internal structure of the metal chassis of the present invention; Figure 2 This is a schematic diagram of the external structure of the metal chassis of the present invention; Figure 3 It is a schematic diagram of the structure of the blowing mechanism of the present invention; Figure 4 This is a schematic diagram of the connection between the swing assembly and the swing pipe of the present invention; Figure 5 For the present invention Figure 1 A partial enlarged view of the middle A; Figure 6 It is a schematic diagram of the driving frame structure of the present invention; Figure 7 For the present invention Figure 3 A partial enlarged view of point B in the middle; Figure 8 It is a schematic diagram of the local structure of the transmission dust removal and ventilation mechanism of the present invention.

[0014] In the figure: 1-metal chassis, 2-small water tank, 3-assembly cover, 4-installation slot, 5-dustproof net, 6-blowing mechanism, 61-small bellows, 62-push-pull rod, 63-reduction motor, 64-drive frame, 65-rotation bar, 66-drive rod, 67-guide rod, 68-connecting pipe, 69-swing pipe, 610-heat dissipation outlet, 611-duct, 612-foam fan plate, 613-swing assembly, 6131-folding bar, 6132-roller, 6133-curved groove, 6134-row rod, 6135-upper pulley, 6136-lower pulley, 6137-leather Belt, 614-water absorption and heat dissipation mechanism, 6141-piston cylinder, 6142-connecting rod, 6143-connecting rod, 6144-heat conduction coil, 6145-suction pipe, 6146-discharge pipe, 6147-reflux pipe, 6148-one-way valve 1, 6149-one-way valve 2, 615-transmission dust removal and ventilation mechanism, 6151-rack, 6152-horizontal axis, 6153-gear, 6154-fixed axis, 6155-swing bar, 6156-spring rod, 6157-brush plate, 6158-silent brush, 6159-oblique rod, 7-support reinforcement rod, 8-movable universal wheel. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0016] See also Figure 1-Figure 8 The present invention provides a technical solution: a portable reinforced computer, comprising a metal case 1 and a small water tank 2 fixed on the top of the metal case 1, with cold water stored inside, assembly covers 3 are fixed on both sides of the metal case 1, and installation grooves 4 are penetrated through the two assembly covers 3, and dustproof nets 5 are fixed on the inner walls of the two installation grooves 4, and the dustproof nets 5 are used to prevent external dust from entering the inside of the metal case 1, thereby protecting the various components in the metal case 1, and a blast mechanism 6 is arranged inside the metal case 1, and the blast mechanism 6 is used to discharge the heat in the metal case 1 to achieve heat dissipation and ventilation, and a support reinforcement rod 7 is fixed at the corner of the inner wall of the metal case 1, and the support reinforcement rod 7 is used to reinforce the metal case 1, and the whole device is designed to form a triangular shape between the support reinforcement rod 7 and the inner wall of the metal case 1, thereby improving the compression resistance of the metal case 1, and movable universal wheels 8 are installed at the four corners of the bottom of the metal case 1, and the arrangement of the movable universal wheels 8 facilitates the pushing of the entire metal case 1, and the use is more convenient.

[0017] In the embodiment of the present invention, the blowing mechanism 6 includes a small bellows 61 fixed on the upper inner wall of the metal chassis 1. The small bellows 61 adopts the existing bellows principle, and its internal principle is no longer specifically described. Airflow can be generated by pulling and drawing, and airflow is used to achieve heat dissipation. A push-pull rod 62 that runs through the outside of the small bellows 61 is fixed on the internal piston of the small bellows 61. A reduction motor 63 is fixed to the inside of the metal chassis 1 through a support plate. The reduction motor 63 is electrically connected to an external power supply and is controlled by a control switch. A driving frame 64 is slidably installed above the inner wall of the metal chassis 1. The driving frame 64 reciprocates back and forth above the inner wall of the metal chassis 1. A rotating bar 65 is fixed to one end of the output shaft of the reduction motor 63. A driving rod 66 used in conjunction with the driving frame 64 is fixed on the rotating bar 65. One end of the driving frame 64 is fixed to the end of the push-pull rod 62 through a guide rod 67. The rotating bar 65 is driven to rotate by the reduction motor 63, and then the entire push-pull rod 62 is driven to reciprocate back and forth by the driving rod 66 in cooperation with the driving frame 64 to generate airflow. A connecting pipe 68 is fixed to the inner wall of the metal chassis 1, and a swing pipe 69 is rotatably installed on the inner wall of the connecting pipe 68. The connection between the connecting pipe 68 and the swing pipe 69 has good sealing performance and no air leakage. The surface of the swing pipe 69 is connected with a plurality of heat dissipation outlets 610, and the air outlet of the small bellows 61 is connected with a duct 611, and one end of the duct 611 is connected with the surface of the connecting pipe 68. A foam fan plate 612 is fixed on the surface of the swing pipe 69. The foam fan plate 612 is made of hard foam material and has the characteristics of light weight. In the process of reciprocating swinging with the swing pipe 69, , similar to the principle of a hand-cranked fan, it can push the hot air to the right, so that the small bellows 61 can absorb low-temperature air when inhaling, thereby improving the heat dissipation efficiency. A swing component 613 is arranged between the swing pipe 69 and the driving frame 64. The swing component 613 is used to drive the swing pipe 69 to rotate back and forth to adjust the air outlet direction, thereby improving the heat dissipation efficiency. A water absorption and heat dissipation mechanism 614 is arranged between the small bellows 61 and the small water tank 2, and a transmission dust removal and ventilation mechanism 615 is arranged between the push-pull rod 62 and the metal chassis 1.

[0018] In the embodiment of the present invention, the swing assembly 613 includes a folding bar 6131 fixed below the driving frame 64, a roller 6132 is rotatably installed on the inner wall of the metal chassis 1, a curved groove 6133 is provided on the surface of the folding bar 6131, a row bar 6134 adapted to the curved groove 6133 is fixed below the folding bar 6131, an upper pulley 6135 is fixed on the surface of the roller 6132, a lower pulley 6136 is fixed on the surface of the swing tube 69, the upper pulley 6135 and the lower pulley 6136 are connected by a belt 6137, when the row bar 6134 moves back and forth, the curved groove 6133 can drive the roller 6132 to rotate back and forth, and then the swing tube 69 is driven to swing back and forth with the cooperation of the lower pulley 6136, the upper pulley 6135 and the belt 6137.

[0019] In the embodiment of the present invention, the water absorption and heat dissipation mechanism 614 includes a piston cylinder 6141 fixed below the small bellows 61, a piston is slidably mounted on the inner wall of the piston cylinder 6141, the piston is made of existing rubber material, is a prior art, and has the same principle as a syringe. In the process of reciprocating movement, water can be pumped and squeezed, a connecting rod 6142 is fixed to one end of the piston, and the connecting rod 6142 is fixed to the push-pull rod 62 by a connecting rod 6143, a heat conduction coil 6144 is fixed to the inner wall of the metal chassis 1, and a suction pipe 6145 is connected to the end of the piston cylinder 6141, and one end of the suction pipe 6145 passes through the metal chassis 1 and is connected to the bottom of the small water tank 2, and the piston cylinder 61 The end of 41 is also connected to a discharge pipe 6146, one end of the discharge pipe 6146 is connected to one end of the heat-conducting coil 6144, the other end of the heat-conducting coil 6144 is connected to a return pipe 6147, one end of the return pipe 6147 passes through the metal chassis 1 and is connected to the top of the small water tank 2, a one-way valve 1 6148 is fixed on the surface of the suction pipe 6145, and a one-way valve 2 6149 is fixed on the surface of the discharge pipe 6146. The setting of the one-way valve 1 6148 allows water to enter the piston cylinder 6141 from the suction pipe 6145 in one direction only, and the setting of the one-way valve 2 6149 allows water to be squeezed from the piston cylinder 6141 to the heat-conducting coil 6144 in one direction only.

[0020] In the embodiment of the present invention, the transmission dust removal and ventilation mechanism 615 includes a rack 6151 slidably installed on the top of the inner wall of the metal chassis 1, the rack 6151 and the push-pull rod 62 are fixed by an inclined rod 6159, a horizontal shaft 6152 is rotatably provided on the metal chassis 1, a gear 6153 meshing with the rack 6151 is fixed on the surface of the horizontal shaft 6152, fixed shafts 6154 are fixed at both ends of the horizontal shaft 6152, swing bars 6155 are fixed on the surfaces of the two fixed shafts 6154, brush plates 6157 are fixed on the inner sides of the two swing bars 6155 through spring rods 6156, and the two brush plates 6157 Silent bristles 6158 in contact with the corresponding dustproof net 5 are fixed on the inner side. When the silent bristles 6158 are in contact with the dustproof net 5 and move, the noise is low, reducing the impact on the user. The setting of the spring rod 6156 enables the silent bristles 6158 to close to the surface of the dustproof net 5, making it convenient for dust cleaning. The rack 6151 can only slide back and forth, and during the sliding process, it will drive the gear 6153 to continuously rotate forward and reverse, thereby driving the horizontal axis 6152 to swing back and forth, and then driving the pendulum bar 6155 to swing back and forth. The silent bristles 6158 and the dustproof net 5 move relative to each other, thereby removing dust and reducing dust adhesion.

[0021] In the embodiment of the present invention, the heat-conducting coil 6144 is made of copper pipe, which has good heat absorption effect. It can absorb the heat inside the metal chassis 1 and transfer it to the water in the heat-conducting coil 6144 to achieve heat absorption. A water injection pipe is connected to the top of the small water tank 2, and a valve is installed on the surface of the water injection pipe, so that water can be injected into the small water tank 2 at any time.

[0022] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0023] When heat dissipation is performed, the reduction motor 63 is started, and the rotation bar 65 is driven to rotate by the reduction motor 63, and then the entire push-pull rod 62 is driven to reciprocate back and forth through the driving rod 66 and the driving frame 64. The small bellows 61 continuously generates airflow, which enters the connecting pipe 68 through the conduit 611, and then enters the swing pipe 69, and is ejected through the heat dissipation outlet 610. At the same time, the connecting rod 6142 and the connecting rod 6143 continuously reciprocate with the push-pull rod 62, so that the piston inside the piston cylinder 6141 continuously reciprocates back and forth. When the connecting rod 6142 moves backward, the piston inside the piston cylinder 6141 moves backward, and the water in the small water tank 2 enters the piston cylinder 6141 through the suction pipe 6145 and the one-way valve 6148. When the connecting rod 6142 moves forward, the piston inside the piston cylinder 6141 moves forward, so that the water in the piston cylinder 6141 is pressed into the heat-conducting coil 6144. The temperature of the metal chassis 1 increases due to the heating, and the heat is transferred to the heat-conducting coil 6144. The heat-conducting coil 6144 transfers the heat to the flowing water, and the flowing water intermittently flows in the heat-conducting coil 6144. The water moves slowly in the process of reciprocating sliding, increasing the contact time with the heat conducting coil 6144, thereby absorbing heat, and then the water re-enters the small water tank 2 through the return pipe 6147. In this process, the heat will be lost. The driving frame 64 will drive the folding strip 6131 to move back and forth during the reciprocating sliding process, thereby driving the rowing rod 6134 to move back and forth. When the rowing rod 6134 moves back and forth, the curved groove 6133 can drive the roller 6132 to achieve reciprocating rotation, thereby the lower pulley 6136, the upper pulley 6135 and the belt 6137 are matched. When closed, it drives the swing tube 69 to swing back and forth. During the reciprocating swing of the swing tube 69, the foam fan plate 612 can push the hot air to the right, accelerate the discharge of hot air from the right side, and facilitate the entry of cold air from the left side. The rack 6151 can only slide back and forth, and during the sliding process, it will drive the gear 6153 to continuously rotate forward and reverse, so as to drive the horizontal axis 6152 to swing back and forth, and then drive the swing bar 6155 to swing back and forth, and the silent brush bristles 6158 move relative to the dustproof net 5, so as to clean the dust on the outside of the dustproof net 5, and facilitate the normal ventilation of the dustproof net 5.

[0024] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0025] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A portable reinforced computer, comprising a metal case (1) and a small water tank (2) fixed above the metal case (1), characterized in that: The metal chassis (1) is fixed with assembly covers (3) on both sides, and the two assembly covers (3) are penetrated with installation grooves (4), and the inner walls of the two installation grooves (4) are fixed with dustproof nets (5). The metal chassis (1) is provided with a blower mechanism (6) inside, and the blower mechanism (6) is used to discharge the heat in the metal chassis (1) to achieve heat dissipation and ventilation. The inner wall corners of the metal chassis (1) are fixed with support reinforcement rods (7), and the four corners of the bottom of the metal chassis (1) are installed with movable universal wheels (8).

2. A portable reinforced computer according to claim 1, characterized in that: The blowing mechanism (6) comprises a small bellows (61) fixed on the upper inner wall of the metal case (1); a push-pull rod (62) penetrating to the outside of the small bellows (61) is fixed on the internal piston of the small bellows (61); a reduction motor (63) is fixed to the inside of the metal case (1) via a support plate; a drive frame (64) is slidably mounted on the upper inner wall of the metal case (1); a rotating bar (65) is fixed to one end of the output shaft of the reduction motor (63); a driving rod (66) for use with the driving frame (64) is passed through and fixed to the rotating bar (65); one end of the driving frame (64) is fixed to the end of the push-pull rod (62) via a guide rod (67); a connecting pipe (68) is fixed to the inner wall of the metal case (1); the connecting pipe (68) A swing pipe (69) is rotatably mounted on the inner wall of the small bellows (61), the surface of the swing pipe (69) is connected to a plurality of heat dissipation outlets (610), the air outlet of the small bellows (61) is connected to a duct (611), one end of the duct (611) is connected to the surface of the connecting pipe (68), a foam fan plate (612) is fixed to the surface of the swing pipe (69), a swing assembly (613) is provided between the swing pipe (69) and the driving frame (64), the swing assembly (613) is used to drive the swing pipe (69) to rotate back and forth to adjust the air outlet direction, a water absorption and heat dissipation mechanism (614) is provided between the small bellows (61) and the small water tank (2), and a transmission dust removal and ventilation mechanism (615) is provided between the push-pull rod (62) and the metal chassis (1).

3. A portable reinforced computer according to claim 2, characterized in that: The swing assembly (613) comprises a folding bar (6131) fixed below the driving frame (64); a roller (6132) is rotatably mounted on the inner wall of the metal chassis (1); a curved groove (6133) is provided on the surface of the folding bar (6131); a row bar (6134) adapted to the curved groove (6133) is fixed below the folding bar (6131); an upper pulley (6135) is fixed on the surface of the roller (6132); a lower pulley (6136) is fixed on the surface of the swing tube (69); and the surfaces of the upper pulley (6135) and the lower pulley (6136) are connected by a belt (6137) for transmission.

4. A portable reinforced computer according to claim 2, characterized in that: The water absorption and heat dissipation mechanism (614) comprises a piston cylinder (6141) fixed below the small bellows (61); a piston is slidably mounted on the inner wall of the piston cylinder (6141); a connecting rod (6142) is fixed to one end of the piston; the connecting rod (6142) and the push-pull rod (62) are fixed via a connecting rod (6143); a heat conduction coil (6144) is fixed to the inner wall of the metal case (1); an end of the piston cylinder (6141) is connected to a suction pipe (6145); one end of the suction pipe (6145) passes through the metal case (1) and The piston cylinder (6141) is connected to the bottom of the small water tank (2). The end of the piston cylinder (6141) is also connected to a discharge pipe (6146). One end of the discharge pipe (6146) is connected to one end of the heat-conducting coil (6144). The other end of the heat-conducting coil (6144) is connected to a return pipe (6147). One end of the return pipe (6147) passes through the metal case (1) and is connected to the top of the small water tank (2). A first check valve (6148) is fixed on the surface of the suction pipe (6145). A second check valve (6149) is fixed on the surface of the discharge pipe (6146).

5. The portable reinforced computer according to claim 2, characterized in that: The transmission dust removal and ventilation mechanism (615) includes a rack (6151) slidably mounted on the top of the inner wall of the metal chassis (1); the rack (6151) is fixed to the push-pull rod (62) via an inclined rod (6159); a horizontal shaft (6152) is rotatably provided on the metal chassis (1); a gear (6153) meshing with the rack (6151) is fixed on the surface of the horizontal shaft (6152); fixed shafts (6154) are fixed at both ends of the horizontal shaft (6152); swing bars (6155) are fixed on the surfaces of the two fixed shafts (6154); brush plates (6157) are fixed on the inner sides of the two swing bars (6155) via spring rods (6156); and silent bristles (6158) in contact with the corresponding dustproof net (5) are fixed on the inner sides of the two brush plates (6157).

6. The portable reinforced computer according to claim 4, characterized in that: The heat conducting coil (6144) is made of copper pipe, and a water injection pipe is connected to the top of the small water tank (2).

7. The portable reinforced computer according to claim 3, characterized in that: When the rowing rod (6134) moves back and forth, it cooperates with the curved groove (6133) to drive the rotating roller (6132) to achieve reciprocating rotation.

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