CN112659079A

CN112659079A - Portable multipurpose graver for metal engraving

Info

Publication number: CN112659079A
Application number: CN202110009797.1A
Authority: CN
Inventors: 陈秀方
Original assignee: Nanjing Shihui'an Trading Co ltd
Current assignee: Nanjing Shihui'an Trading Co ltd
Priority date: 2021-01-05
Filing date: 2021-01-05
Publication date: 2021-04-16

Abstract

The invention discloses a portable multipurpose graver for metal engraving, which comprises a storage shell, wherein a storage box with a downward opening is arranged in the storage shell, a cutting knife is arranged in the storage box in a sliding manner, a sliding cavity with an upward opening is arranged in the cutting knife, a touch plate is arranged in the sliding cavity in a sliding manner, a connecting rod is fixedly arranged at the lower end of the touch plate, and two swinging rods are hinged to the lower end of the connecting rod.

Description

Portable multipurpose graver for metal engraving

Technical Field

The invention relates to the field related to metal engraving, in particular to a portable multipurpose engraving knife for metal engraving.

Background

When people use the carving knife at present, people often need to carve by means of the arm strength of the people, and large physical power needs to be consumed, and when carrying, due to the particularity of the carving knife, people are inconvenient to carry, and in the carving process, people are easy to distract because of needing other cutters, and further the carving fails.

Disclosure of Invention

In order to solve the problems, the embodiment designs a portable multi-purpose graver for metal engraving, which comprises a containing shell, wherein a containing box with a downward opening is arranged in the containing shell, a cutting knife is arranged in the containing box in a sliding manner, a sliding cavity with an upward opening is arranged in the cutting knife, a touch panel is arranged in the sliding cavity in a sliding manner, a connecting rod is fixedly arranged at the lower end of the touch panel, two swinging rods are hinged at the lower end of the connecting rod and are symmetrically distributed in a left-right manner by taking the connecting rod as a symmetric center, two moving cavities are communicated at the left end and the right end of the sliding cavity and are symmetrically distributed in a left-right manner by taking the sliding cavity as a symmetric center, a connecting plate is hinged at the lower end of the swinging rods, and a sliding rod is arranged at one end of the connecting plate far away from the swinging rods in a sliding manner, the lower end of the sliding rod is fixedly provided with a sliding box, the sliding box is internally provided with a storage cavity with an opening close to the sliding cavity, the storage cavity is internally provided with a cutting plate in a sliding manner, one end of the cutting plate far away from the sliding cavity is fixedly provided with a compression spring, one end of the compression spring far away from the cutting plate is fixedly connected to the inner wall of the storage cavity, the cutting knife is internally provided with two sliding grooves, the two sliding grooves are distributed in a bilateral symmetry manner by taking the sliding cavity as a symmetry center, sliding blocks are arranged in the sliding grooves in a sliding manner, the upper ends of the sliding blocks are fixedly provided with reciprocating springs, the upper ends of the reciprocating springs are fixedly connected to the inner wall of the upper sides of the sliding grooves, one ends of the sliding blocks far away from the sliding toothed plates are fixedly provided with sliding toothed plates, the storage shell is internally provided with two toothed plate cavities with, the toothed plate cavity is communicated with the containing box, one end of the sliding toothed plate, far away from the sliding block, is connected in the toothed plate cavity in a sliding manner, a bearing block is arranged in the containing box in a sliding manner, a spring cavity with an upward opening is arranged in the bearing block, a moving rod is arranged in the spring cavity in a sliding manner, a strong spring is fixedly arranged at the lower end of the moving rod, the lower end of the strong spring is fixedly connected on the inner wall of the lower side of the spring cavity, a moving block is fixedly arranged at the upper end of the moving rod, the moving block is abutted against the inner wall of the upper side of the containing box, a rope wheel is rotatably arranged at the lower end of the bearing block, a rope is wound on the rope wheel, one end of the rope, far away from the rope wheel, is fixedly connected on the inner wall of the left side of the, an extension cavity is arranged at the upper end of the containing box in a penetrating manner, a moving plate is arranged at the upper end of the extension cavity in a sliding manner, an outlet cavity is arranged at the lower end of the containing box in a penetrating manner, when the device starts to work, the cutting knife is driven by a rack and pinion to move downwards, then the containing box is moved out of the containing box through the outlet cavity, further the bearing block is driven by a hydraulic device to move rightwards, further the moving rod is driven to move upwards under the action of the strong spring, further the moving block is driven to move upwards, further the moving block extends out of the extension cavity and further abuts against the lower end of the moving plate, meanwhile, when the bearing block moves rightwards, the rope is driven to be elongated, further the rope wheel is driven to rotate, further the thread sleeve is driven to rotate, further the screw rod is driven to move downwards, further the fixed plate is, when the shape of the cutting knife needs to be changed, the sliding block is pressed to further drive the sliding block to move downwards, and then the contact plate is driven to move downwards, so that the connecting plate is driven to move towards the direction away from the sliding cavity, and the cutting plate is aligned with the lower end of the cutting knife under the action of the compression spring, so that the shape of the cutting knife is changed, and the time wasted in knife changing is reduced.

Preferably, the left end and the right end of the extension cavity are communicated and provided with two screw rod cavities, the two screw rod cavities are distributed in a bilateral symmetry mode by taking the extension cavity as a symmetry center, one end, close to the extension cavity, of each screw rod cavity is provided with a limiting block in a sliding mode, a through hole which is communicated up and down is formed in each limiting block, a rotating block is arranged in each through hole in a rotating mode, a thread is arranged in each rotating block and provided with two extension blocks, the two extension blocks are distributed in a vertical symmetry mode by taking the rotation block as the symmetry center, two reset springs are fixedly arranged on the left side and the right side of each rotating block, the two reset springs are distributed in a bilateral symmetry mode by taking the rotation blocks as the symmetry center, one end, far away from the rotating blocks, of each reset spring is rotatably connected to the inner wall of the through hole, the rotating block is wound with two tension, the sliding gear is connected in a sliding mode in the screw rod cavity, a limiting block is fixedly arranged in the screw rod cavity, and one end, extending out of the cavity, of the tension rope is fixedly connected to the limiting block.

Preferably, the right end of the outlet cavity is rotatably provided with a baffle, the baffle can seal the outlet cavity, and the right side of the baffle is provided with a torsion spring for resetting.

Preferably, the inner walls of the left side and the right side of the containing box are fixedly provided with two motors, the motors are arranged so that the cutting knife is distributed in a bilateral symmetry mode as a symmetry center, power shafts are arranged at the lower ends of the motors, driving bevel gears are fixedly arranged at the lower ends of the power shafts, the driving bevel gears are far away from one ends of the cutting knife and meshed with driven bevel gears, the driven bevel gears are far away from a tooth mandrel fixedly arranged at one end of the cutting knife, meshed gears are fixedly arranged at the rear end of the meshed gears and meshed with sliding toothed plates.

Preferably, a transmission shaft is arranged at one end, close to the cutting knife, of the motor in a power mode, a cam is fixedly arranged at one end, close to the cutting knife, of the transmission shaft, and the cam can abut against the upper end of the cutting knife.

Preferably, a hydraulic telescopic rod is fixedly arranged on the inner wall of the left side of the containing box, and the bearing block is connected to the hydraulic telescopic rod in a sliding mode.

Preferably, the left end and the right end of the movable plate are fixedly provided with two sliding plates, the two sliding plates are distributed in a bilateral symmetry mode by taking the movable plate as a symmetry center, the lower ends of the sliding plates are fixedly provided with stretching ropes, the lower ends of the stretching ropes are wound with nuts, the nuts are in threaded connection with the sliding gears, torsion springs are fixedly arranged in the nuts, one ends of the torsion springs are fixedly connected to the nuts, and the ends, far away from the nuts, of the torsion springs are fixedly connected to the sliding gears.

Preferably, the inner wall of the sliding cavity is fixedly provided with an induction block, the connecting plate is fixedly provided with a lifter, and the lifter is rotatably connected to the sliding rod.

The invention has the beneficial effects that: the carving tool can be placed in the storage cavity, the aim of reducing the size is fulfilled while the damage to the tool is avoided, the carrying is convenient, in actual use, the carving tool can be provided with actual use conditions, the conversion of the tool is realized, the phenomenon that the attention of people is reduced due to the fact that the tool is found in the carving process is avoided, and the abrasion of hands of a user in the carving process is reduced by the fact that the carving tool is vibrated.

Drawings

In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.

The invention is further illustrated with reference to the following figures and examples.

Fig. 1 is a schematic view showing the overall structure of a portable multi-purpose graver for metal engraving according to the present invention.

Fig. 2 is an enlarged schematic view of a in fig. 1.

Fig. 3 is an enlarged schematic view of B in fig. 1.

Fig. 4 is a schematic view of the structure of C-C in fig. 1.

Detailed Description

The invention will now be described in detail with reference to fig. 1-4, wherein for ease of description the orientations described hereinafter are now defined as follows: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.

The invention relates to a portable multi-purpose graver for metal engraving, which comprises a storage shell 11, wherein a storage box 17 with a downward opening is arranged in the storage shell 11, a cutting knife 30 is arranged in the storage box 17 in a sliding manner, a sliding cavity 18 with an upward opening is arranged in the cutting knife 30, a contact plate 19 is arranged in the sliding cavity 18 in a sliding manner, a connecting rod 22 is fixedly arranged at the lower end of the contact plate 19, two swinging rods 25 are hinged at the lower end of the connecting rod 22, the two swinging rods 25 are symmetrically distributed in a left-right manner by taking the connecting rod 22 as a symmetric center, two moving cavities 35 are communicated at the left end and the right end of the sliding cavity 18, the two moving cavities 35 are symmetrically distributed in a left-right manner by taking the sliding cavity 18 as a symmetric center, a connecting plate 26 is hinged at the lower end of the swinging rod 25, and a sliding rod 27 is arranged, the lower end of the sliding rod 27 is fixedly provided with a sliding box 28, the sliding box 28 is internally provided with a storage cavity 31 with an opening close to the sliding cavity 18, the storage cavity 31 is internally provided with a cutting plate 29 in a sliding manner, one end of the cutting plate 29 far away from the sliding cavity 18 is fixedly provided with a compression spring 32, one end of the compression spring 32 far away from the cutting plate 29 is fixedly connected to the inner wall of the storage cavity 31, the cutting knife 30 is internally provided with two sliding grooves 20, the two sliding grooves 20 are distributed in a bilateral symmetry manner by taking the sliding cavity 18 as a symmetry center, the sliding grooves 20 are internally provided with sliding blocks 45 in a sliding manner, the upper ends of the sliding blocks 45 are fixedly provided with reciprocating springs 21, the upper ends of the reciprocating springs 21 are fixedly connected to the inner wall on the upper side of the sliding grooves 20, one end of the sliding cavity 18 far away from the sliding grooves 45 is fixedly provided with a, the two toothed plate cavities 44 are distributed in bilateral symmetry with the sliding cavity 18 as a symmetry center, the toothed plate cavities 44 are communicated with the containing box 17, one end, far away from the sliding block 45, of the sliding toothed plate 43 is connected in the toothed plate cavity 44 in a sliding manner, a bearing block 62 is arranged in the containing box 17 in a sliding manner, a spring cavity 68 with an upward opening is arranged in the bearing block 62, a moving rod 50 is arranged in the spring cavity 68 in a sliding manner, a strong spring 67 is fixedly arranged at the lower end of the moving rod 50, the lower end of the strong spring 67 is fixedly connected on the inner wall at the lower side of the spring cavity 68, a moving block 51 is fixedly arranged at the upper end of the moving rod 50, the moving block 51 is abutted against the inner wall at the upper side of the containing box 17, a rope pulley 63 is rotatably arranged at the lower end of the bearing block 62, a rope 65 is wound on the rope pulley 63, and one end, far, a threaded sleeve 66 is fixedly arranged at the lower end of the rope pulley 63, a screw 47 is arranged at the lower end of the threaded sleeve 66 in a threaded manner, a fixing plate 46 is fixedly arranged at the lower end of the screw 47, an extending cavity 16 is arranged at the upper end of the containing box 17 in a penetrating manner, a moving plate 15 is arranged at the upper end of the extending cavity 16 in a sliding manner, an outlet cavity 34 is arranged at the lower end of the containing box 17 in a penetrating manner, when the device starts to work, the cutting knife 30 is driven by a rack and pinion to move downwards, and then the cutting knife moves out of the containing box 17 through the outlet cavity 34, and then the bearing block 62 is driven by a hydraulic device to move rightwards, so that the moving rod 50 is driven to move upwards under the action of the strong spring 67, and then the moving block 51 is driven to move upwards, so that the moving block 51 extends out of the extending cavity 16 and then, and then the rope pulley 63 is driven to rotate, and then the threaded sleeve 66 is driven to rotate, and then the screw rod 47 is driven to move downwards, so that the fixing plate 46 is driven to extend into the sliding cavity 18, and then the metal is carved through the cutting knife 30, when the shape of the cutting knife 30 needs to be changed, the sliding block 45 is driven to move downwards by pressing the moving block 51, so that the touch plate 19 is driven to move downwards, and then the connecting plate 26 is driven to move towards the direction far away from the sliding cavity 18, so that the cutting plate 29 is flush with the lower end of the cutting knife 30 under the action of the compression spring 32, and further the shape of the cutting knife 30 is changed, and the time wasted by knife changing is reduced.

Beneficially, two screw rod cavities 53 are communicated with the left end and the right end of the extension cavity 16, the two screw rod cavities 53 are symmetrically distributed with the extension cavity 16 as a symmetric center, a limiting block 57 is slidably arranged at one end of each screw rod cavity 53 close to the extension cavity 16, a through hole 56 which is through up and down is arranged in each limiting block 57, a rotating block 58 is rotatably arranged in each through hole 56, two extension blocks 60 are arranged in each rotating block 58 in a threaded manner, the two extension blocks 60 are symmetrically distributed with the rotating block 58 as a symmetric center in an up-down manner, two return springs 59 are fixedly arranged at the left side and the right side of each rotating block 58, the two return springs 59 are symmetrically distributed with the rotating block 58 as a symmetric center, one end of each return spring 59, which is far away from the rotating block 58, is rotatably connected to the inner wall of the through hole 56, and two tension ropes 55 are wound on the rotating block 58, the limiting block 57 is fixedly provided with a sliding gear 12 at one end far away from the stretching cavity 16, the sliding gear 12 is connected in the screw rod cavity 53 in a sliding manner, a limiting block 52 is fixedly arranged in the screw rod cavity 53, and one end, far away from the stretching cavity 16, of the tensile rope 55 is fixedly connected to the limiting block 52.

Advantageously, a baffle 33 is rotatably arranged at the right end of the outlet cavity 34, the baffle 33 can close the outlet cavity 34, and a torsion spring for resetting is arranged at the right side of the baffle 33.

Beneficially, two motors 42 are fixedly arranged on inner walls of left and right sides of the storage box 17, the two motors 42 are symmetrically distributed with the cutting knife 30 as a symmetry center, a power shaft 40 is dynamically arranged at the lower end of each motor 42, a driving bevel gear 39 is fixedly arranged at the lower end of each power shaft 40, a driven bevel gear 38 is meshed with one end, away from the cutting knife 30, of each driving bevel gear 39, a tooth spindle 37 is fixedly arranged at one end, away from the cutting knife 30, of each driven bevel gear 38, a meshing gear 36 is fixedly arranged at one end, away from the cutting knife 30, of each tooth spindle 37, and the rear end of each meshing gear 36 is meshed with the corresponding sliding toothed plate 43.

Advantageously, a transmission shaft 41 is arranged at one end of the motor 42 close to the cutting knife 30 in a power mode, a cam 69 is fixedly arranged at one end of the transmission shaft 41 close to the cutting knife 30, and the cam 69 can abut against the upper end of the cutting knife 30.

Advantageously, a hydraulic telescopic rod 49 is fixedly arranged on the inner wall of the left side of the containing box 17, and the bearing block 62 is slidably connected to the hydraulic telescopic rod 49.

Beneficially, two sliding plates 14 are fixedly arranged at the left end and the right end of the moving plate 15, the two sliding plates 14 are symmetrically distributed with the moving plate 15 as a symmetry center, a tensile rope 13 is fixedly arranged at the lower end of each sliding plate 14, a nut 54 is wound at the lower end of each tensile rope 13, the nut 54 is in threaded connection with the sliding gear 12, a torsion spring 61 is fixedly arranged in each nut 54, one end of each torsion spring 61 is fixedly connected to the corresponding nut 54, and one end of each torsion spring 61, which is far away from the corresponding nut 54, is fixedly connected to the corresponding sliding gear 12.

Advantageously, the inner wall of the sliding cavity 18 is fixedly provided with a sensing block 23, the connecting plate 26 is fixedly provided with a lifter 70, and the lifter 70 is rotatably connected to the sliding rod 27.

The following describes in detail the usage steps of a portable multi-purpose graver for metal carving in the present text with reference to fig. 1 to 4:

initially, the cutting knife 30 is retracted in the storage box 17, the moving plate 15 is located on the upper side of the extension cavity 16, the hydraulic telescopic rod 49 is in a retracted state, the screw 47 is retracted in the bearing block 62, the limiting block 57 is retracted in the screw cavity 53, the extension block 60 is located in the rotation block 58, the cutting plate 29 is retracted in the storage cavity 31, and the touch plate 19 is located on the upper side of the induction block 23;

in operation, the motor 42 is started to drive the power shaft 40 to rotate, and further drive the driving bevel gear 39 to rotate, and further drive the driven bevel gear 38 to rotate, and further drive the tooth spindle 37 to rotate, and further drive the meshing gear 36 to rotate, and further drive the sliding toothed plate 43 to move downwards, and further drive the cutting knife 30 to move downwards, and further the lower end of the cutting knife 30 abuts against the upper end of the baffle 33, and further drive the baffle 33 to rotate, and further cause the cutting knife 30 to extend out of the outlet cavity 34, and when the cam 69 can cause the upper ends of the cutting knives 30 to abut against each other, the cam 69 stops moving downwards, and further starts the hydraulic telescopic rod 49, and further drives the bearing block 62 to move rightwards, so that the moving rod 50 is located at the lower side of the extending cavity 16, and the fixing plate 46 is located at the upper side of the sliding cavity 18, and when the moving rod 50 is located at the lower side of the protruding cavity 16, the moving rod 50 moves upward under the action of the strong spring 67, and then drives the moving block 51 to move upward, so that the moving block 51 abuts against the lower end of the moving plate 15, and then drives the moving plate 15 to move upward, and further drives the sliding plate 14 to move upward, and further drives the tensile cord 13 to extend, and further drives the nut 54 to rotate, and further drives the tensile cord 13 to move toward the end close to the protruding cavity 16, and further drives the limiting block 57 to move toward the end close to the tensile cord 13, and further drives the tensile cord 55 to extend, and further drives the rotating block 58 to rotate, and further drives the protruding block 60 to move out of the through hole 56, so that the protruding block 60 at the upper side abuts against the lower end of the moving block 51, and the protruding block 60 at the lower side abuts against the upper end of the bearing block 62, the hydraulic telescopic rod 49 is extended rightwards, so that the traction rope 48 is driven to extend, the rope wheel 63 is driven to rotate, the threaded sleeve 66 is driven to rotate, the screw rod 47 is driven to extend, the fixing plate 46 is driven to extend into the sliding cavity 18, the lower end of the fixing plate 46 is enabled to be abutted against the upper end of the touch plate 19, the motor 42 is started, the transmission shaft 41 is driven to rotate, the cam 69 is driven to rotate, the cutting knife 30 is driven to move downwards, the vibration of the cutting knife 30 is completed through the extension and the restoration of the reciprocating spring 21, and a user can conveniently and quickly carve metal;

when the shape of the graver needs to be changed, a hand presses the upper end of the moving plate 15, so as to drive the extending block 60 to move downwards, so as to drive the return spring 59 to compress, so as to drive the rotating block 58 to move downwards, so as to drive the bearing block 62 to slide on the hydraulic telescopic rod 49, so as to drive the fixing plate 46 to move downwards, so as to drive the touch plate 19 to move downwards, so as to drive the connecting rod 22 to move downwards, so as to enable the lower end of the touch plate 19 to abut against the induction block 23, so as to drive the hinged plate 24 to move downwards, so as to drive the swinging rod 25 to rotate, so as to drive the connecting plate 26 to move towards one end far away from the sliding cavity 18, so as to enable the cutting plate 29 to extend out of the storage cavity 31 under the action of the compression spring 32, so as to start the lifter 70, so as to drive the sliding rod 27 to move downwards, and the lower end of the cutting plate 29 is flush with the lower end of the cutting knife 30, so that the time consumed by people when the knives need to be replaced is avoided.

The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a be used for glyptic portable multi-purpose carving tool of metal, is including accomodating the shell, its characterized in that: a containing box with a downward opening is arranged in the containing shell, a cutting knife is arranged in the containing box in a sliding manner, a sliding cavity with an upward opening is arranged in the cutting knife, a touch panel is arranged in the sliding cavity in a sliding manner, a connecting rod is fixedly arranged at the lower end of the touch panel, two swinging rods are hinged at the lower end of the connecting rod and are distributed in a bilateral symmetry manner by taking the connecting rod as a symmetry center, two moving cavities are communicated and arranged at the left end and the right end of the sliding cavity, the two moving cavities are distributed in a bilateral symmetry manner by taking the sliding cavity as a symmetry center, a connecting plate is hinged at the lower end of the swinging rods, a sliding rod is arranged at one end of the connecting plate far away from the swinging rods in a sliding manner, a sliding box is fixedly arranged at the lower end of the sliding rod, a storing cavity with an opening close to the sliding cavity is arranged in the sliding, one end, far away from the cutting plate, of the compression spring is fixedly connected to the inner wall of the storage cavity, two sliding grooves are arranged in the cutting knife, the two sliding grooves are symmetrically distributed on the left and right sides by taking the sliding cavity as a symmetry center, sliding blocks are arranged in the sliding grooves in a sliding mode, reciprocating springs are fixedly arranged at the upper ends of the sliding blocks, the upper ends of the reciprocating springs are fixedly connected to the inner wall of the upper side of the sliding grooves, a sliding toothed plate is fixedly arranged at one end, far away from the sliding cavity, of the sliding block, two toothed plate cavities with downward openings are arranged in the storage shell, the two toothed plate cavities are symmetrically distributed on the left and right sides by taking the sliding cavity as a symmetry center, the toothed plate cavities are communicated with the storage box, one end, far away from the sliding block, of the sliding toothed plate is slidably connected in the toothed plate cavities, a bearing block is arranged, the improved rope wheel is characterized in that a moving rod is arranged in the spring cavity in a sliding mode, a strong spring is fixedly arranged at the lower end of the moving rod, the lower end of the strong spring is fixedly connected to the inner wall of the lower side of the spring cavity, a moving block is fixedly arranged at the upper end of the moving rod and abutted against the inner wall of the upper side of the containing box, a rope wheel is arranged at the lower end of the bearing block in a rotating mode, a rope is wound on the rope wheel, one end of the rope wheel is fixedly connected to the inner wall of the left side of the containing box, a threaded sleeve is fixedly arranged at the lower end of the rope wheel, a screw rod is fixedly arranged at the lower end of the screw rod, a stretching cavity is arranged at the upper end of the containing box.

2. A portable multi-purpose graver for metal engraving of claim 1, wherein: the left end and the right end of the extension cavity are communicated and provided with two screw rod cavities, the two screw rod cavities are symmetrically distributed in a left-right mode by taking the extension cavity as a symmetric center, one end, close to the extension cavity, of each screw rod cavity is provided with a limiting block in a sliding mode, a through hole which is communicated up and down is formed in each limiting block, a rotating block is arranged in each through hole in a rotating mode, each rotating block is internally provided with two extension blocks in a threaded mode, the two extension blocks are symmetrically distributed in a top-down mode by taking the rotating block as the symmetric center, two reset springs are fixedly arranged on the left side and the right side of each rotating block, the two reset springs are symmetrically distributed in a left-right mode by taking the rotating blocks as the symmetric center, one end, far away from the rotating blocks, of each reset spring is rotatably connected to the inner wall of each through hole, the sliding gear is connected in a sliding mode in the screw rod cavity, a limiting block is fixedly arranged in the screw rod cavity, and one end, extending out of the cavity, of the tension rope is fixedly connected to the limiting block.

3. A portable multi-purpose graver for metal engraving of claim 1, wherein: the right end of the outlet cavity is rotatably provided with a baffle, the baffle can seal the outlet cavity, and the right side of the baffle is provided with a torsion spring for resetting.

4. A portable multi-purpose graver for metal engraving of claim 1, wherein: fixed two motors that are equipped with on the containing box left and right sides inner wall, two the motor with the cutting knife becomes bilateral symmetry distribution as the symmetric center, motor lower extreme power is equipped with the power shaft, the fixed initiative bevel gear that is equipped with of power shaft lower extreme, initiative bevel gear keeps away from the one end meshing of cutting knife is equipped with driven bevel gear, driven bevel gear keeps away from the fixed tooth axle that is equipped with of one end of cutting knife, the tooth axle is kept away from the fixed meshing gear that is equipped with of one end of cutting knife, meshing gear rear end with sliding tooth board intermeshing.

5. The portable multi-purpose graver for metal engraving of claim 4, wherein: the motor is close to the one end power of cutting knife is equipped with the transmission shaft, the transmission shaft is close to the one end of cutting knife is fixed and is equipped with the cam, the cam can with the cutting knife upper end is contradicted.

6. A portable multi-purpose graver for metal engraving of claim 1, wherein: the inner wall of the left side of the containing box is fixedly provided with a hydraulic telescopic rod, and the bearing block is connected to the hydraulic telescopic rod in a sliding mode.

7. The portable multi-purpose graver for metal engraving of claim 1, wherein two sliding plates are fixedly arranged at the left and right ends of the moving plate, the two sliding plates are symmetrically distributed at the left and right sides of the moving plate, the lower ends of the sliding plates are fixedly provided with stretching ropes, the lower ends of the stretching ropes are wound with nuts, the nuts are in threaded connection with the sliding gears, the nuts are internally and fixedly provided with torsion springs, one ends of the torsion springs are fixedly connected with the nuts, and the ends of the torsion springs, far away from the nuts, are fixedly connected with the sliding gears.

8. The portable multi-purpose graver for metal engraving of claim 1, wherein an induction block is fixedly arranged on the inner wall of the sliding cavity, a lifter is fixedly arranged on the connecting plate, and the lifter is rotatably connected to the sliding rod.