CN114407360A

CN114407360A - Glove box for 3D printing

Info

Publication number: CN114407360A
Application number: CN202210099447.3A
Authority: CN
Inventors: 王林; 施砺圆; 岳焕焕
Original assignee: Nanjing Chenglian Laser Technology Co Ltd
Current assignee: Nanjing Chenglian Laser Technology Co Ltd
Priority date: 2022-01-27
Filing date: 2022-01-27
Publication date: 2022-04-29
Anticipated expiration: 2042-01-27
Also published as: CN114407360B

Abstract

The invention provides a glove box for 3D printing, which belongs to the technical field of 3D printing equipment and comprises a forming chamber, wherein a box plate is arranged at the opening part of the forming chamber, the left side of the box plate is hinged with the forming chamber through two hinges, the right side of the box plate is locked with the forming chamber through a lock catch, a mirror frame is connected to the box plate in a sealed and seamless manner, visible glass is connected to the mirror frame in a sealed and seamless manner, gloves are arranged on the box plate and located below the mirror frame, a cleaning assembly is further arranged on the box plate, and a second box plate is connected with the gloves through a linkage assembly and disassembly assembly. The glove box solves the problems that dust can be adsorbed on the visible glass of the existing glove box for 3D printing, the visual line of an operator is blurred, the accurate operation of the operator is not facilitated, gloves on the glove box are generally fixed through bolts, the disassembly and the assembly are complex, and the replacement of the gloves on the glove box is inconvenient.

Description

Glove box for 3D printing

The technical field is as follows:

the invention belongs to the technical field of 3D printing equipment, and particularly relates to a glove box for 3D printing.

Background art:

the 3D printing is usually implemented by using a digital technology material printer, and is often used for manufacturing models in the fields of mold manufacturing, industrial design, and the like, and then gradually used for direct manufacturing of some products. The 3D printing device is a mechanical device produced based on 3D printing technology, and a glove box is one of the core components of the 3D printing device because the 3D printing process needs to be operated by using the glove box.

Can adsorb the dust on the current 3D prints the visual glass with glove box, and then lead to operating personnel's sight fuzzy, and then be unfavorable for operating personnel's accurate operation, gloves on the glove box generally adopt the bolt to fix simultaneously, and its dismouting is comparatively loaded down with trivial details, and then the change of gloves on the glove box of not being convenient for.

The invention content is as follows:

the invention provides a glove box for 3D printing, which aims to solve the problems that dust can be adsorbed on the visible glass of the existing glove box for 3D printing, the sight of an operator is blurred, the accurate operation of the operator is further facilitated, gloves on the glove box are generally fixed by bolts, the disassembly and the assembly are complicated, and the replacement of the gloves on the glove box is further facilitated.

The embodiment of the invention provides a glove box for 3D printing, which comprises a forming chamber, wherein a box plate is arranged at the opening of the forming chamber, the left side of the box plate is hinged with the forming chamber through two hinges, the right side of the box plate is locked with the forming chamber through a lock catch, a mirror frame is connected to the box plate in a sealed and seamless mode, visible glass is connected to the mirror frame in a sealed and seamless mode, gloves are arranged on the box plate and located below the mirror frame, a cleaning assembly is further arranged on the box plate, and the box plate II is connected with the gloves through a linkage assembly and disassembly assembly.

Through adopting above-mentioned technical scheme, can clear up the last adsorbed dust of visual glass through clean subassembly, guaranteed the clean of mirror surface, avoid operating personnel because of the sight that the dust of mirror surface caused is fuzzy, the accurate operation of the operating personnel of being convenient for can directly adopt the mode of twisting with the hand to carry out quick dismouting with gloves through linkage dismouting subassembly simultaneously, and then the change of gloves on the glove box of being convenient for.

Further, a sealing strip is arranged between the box plate and the opening of the forming chamber.

By adopting the technical scheme, the airtightness of the forming chamber after the box plate is closed is ensured, and the normal printing of printing equipment is ensured.

Further, clean subassembly includes motor, button and telescopic link, the motor is fixed on the outer wall of boxboard with the button, the motor all is located the top of picture frame with the button, the motor is located the left side of button, the output of motor passes to the inboard fixedly connected with telescopic link of boxboard.

Through adopting above-mentioned technical scheme, through opening of button control motor to through the rotation drive telescopic link's of motor swing.

Further, clean subassembly still includes the vertical pole, scrapes strip and slide rail, the slide rail is fixed on the inboard wall of picture frame, the slide rail is provided with two, two the slide rail is located the upper and lower both ends of picture frame respectively, two sliding connection has the vertical pole between the slide rail, the vertical pole links to each other with the telescopic link, fixedly connected with scrapes the strip on the vertical pole is close to visual glass's one side, it is the rubber strip to scrape the strip, it pastes with visual glass mutually to scrape the strip.

Through adopting above-mentioned technical scheme, utilize the telescopic link to drive vertical pole reciprocating motion between two slide rails, and then drive through the vertical pole and scrape the strip and remove, the strip of scraping that removes carries out self-cleaning, labour saving and time saving, simple operation to visual glass's mirror surface.

Further, the telescopic link includes loop bar and interior pole, the one end of loop bar and the output fixed connection of motor, the interior pole has been cup jointed in the loop bar, the interior pole is located the one end in the loop bar outside and is connected through the pivot rotation with the intermediate position of vertical pole.

Through adopting above-mentioned technical scheme, adjust the holistic length of telescopic link through the length of interior pole in the loop bar, and then ensure that wobbling telescopic link can drive the horizontal round trip movement of vertical pole.

Further, the head of gloves stretches into in the shaping chamber, four V type grooves have been seted up on the annular plate of gloves afterbody, four V type grooves on the gloves correspond the block with four V type lugs of gloves installing port department on the boxboard, the annular plate of gloves afterbody and the junction of gloves installing port on the boxboard are provided with the sealing strip.

Through adopting above-mentioned technical scheme, utilize the block of V type groove and V type lug to guarantee the corresponding position of gloves block at the gloves installing port, and then ensure linkage dismouting subassembly and to the quick locking of gloves, guarantee the gas tightness after the gloves installation simultaneously.

Further, linkage dismouting subassembly includes ring cavity, interior collar, swivel becket, external gear, spiral pole, rotating gear and knob, the ring cavity is seted up at the boxboard, the ring cavity encircles the avris at the gloves installing port, the collar in the fixedly connected with in the ring cavity, one side of interior collar is rotated and is connected with the swivel becket, be provided with the external gear on the outer peripheral face of swivel becket, the rotary pole rotates and installs on the boxboard, the inboard fixedly connected with of the one end of spiral pole extending to the ring cavity has the rotating gear, the rotating gear is connected with the external gear meshing, the other end of spiral pole is located the outside of boxboard and is connected with the knob.

By adopting the technical scheme, the rotating gear connected with the rotating rod can be driven to rotate by rotating the knob, and the rotating gear drives the rotating ring to rotate through the meshed external gear.

Furthermore, the linkage disassembling and assembling component also comprises a first bevel gear, a second bevel gear, a sleeve, a threaded rod, through holes, pin holes and pin rods, wherein the first bevel gear is fixed on one surface of the rotating ring, the sleeve is rotatably connected on the inner mounting ring, two ends of the sleeve penetrate through the peripheral wall of the inner mounting ring, four sleeve are symmetrically arranged, one end of the sleeve, which is positioned on the outer side of the inner mounting ring, is fixedly connected with the second bevel gear, the second bevel gear is meshed with the first bevel gear, one end of the sleeve, which is positioned on the inner side of the inner mounting ring, is in threaded connection with the threaded rod, one end of the threaded rod, which is positioned on the outer side of the sleeve, is fixedly connected with the square pin rods, one end of the pin rods, which is far away from the threaded rod, is conical, the through holes corresponding to the threaded rod are arranged on the inner peripheral wall of the annular cavity, two ends of the through holes penetrate through the inner peripheral wall of the annular cavity, and the through holes are square, the through holes are correspondingly clamped with the pin rods, the pin holes are formed in the annular plate at the tail of the glove, the number of the pin holes is four, the pin holes are square, and the pin holes correspond to the pin rods and are matched with the pin rods.

Through adopting above-mentioned technical scheme, drive helical gear through pivoted swivel becket and rotate, helical gear one drives helical gear two and rotates, and helical gear two drives the sleeve pipe of being connected with it and rotates, and under the effect of pin pole and through-hole, the threaded rod carries out reciprocating motion, and then makes the pin pole immigration or shift out the pinhole, and then realizes the dismouting of gloves, the change of the gloves of being convenient for.

The invention has the beneficial effects that:

1. according to the invention, the cleaning assembly is arranged, the motor is controlled to start and stop through the button on the cleaning assembly, the motor rotates to drive the telescopic rod to swing, the telescopic rod drives the longitudinal rod to reciprocate between the two slide rails, and then the longitudinal rod drives the scraping strip to move, the movable scraping strip automatically cleans the mirror surface of the visible glass, so that the cleaning of the mirror surface is ensured, the blurred vision of an operator caused by the dust on the mirror surface is avoided, and the accurate operation of the operator is facilitated.

2. According to the invention, through the arrangement of the linkage assembly and disassembly component, the knob on the linkage assembly and disassembly component can be rotated to drive the rotating gear connected with the rotating rod to rotate, the rotating gear drives the rotating ring to rotate through the meshed external gear, the rotating ring drives the first helical gear to rotate, the first helical gear drives the second helical gear to rotate, the second helical gear drives the sleeve connected with the second helical gear to rotate, and under the action of the pin rod and the through hole, the threaded rod reciprocates, so that the pin rod is moved in or out of the pin hole, the assembly and disassembly of the glove are realized, and the glove is convenient to replace.

3. According to the invention, the V-shaped groove and the V-shaped lug are clamped to ensure that the glove is clamped at the corresponding position of the glove mounting opening, so that the glove is quickly locked by the linkage assembly and disassembly component, and the air tightness of the glove after being mounted is ensured.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention may be realized and attained by the structure particularly pointed out in the written description and drawings.

Description of the drawings:

the accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic front view of an embodiment of the present invention;

FIG. 2 is a rear view of an embodiment of the present invention;

FIG. 3 is a first schematic view of a linkage assembly/disassembly assembly in accordance with an embodiment of the present invention;

FIG. 4 is a second schematic view of a linkage assembly/disassembly assembly in accordance with an embodiment of the present invention;

reference numerals: 1. a forming chamber; 2. a boxboard; 3. a hinge; 4. locking; 5. a cleaning assembly; 6. a mirror frame; 7. a visible glass; 8. a glove; 9. the assembly and disassembly are linked; 51. a motor; 52. a button; 53. a loop bar; 54. an inner rod; 55. a longitudinal bar; 56. scraping the strips; 57. a slide rail; 91. an annular cavity; 92. an inner mounting ring; 93. a rotating ring; 94. an outer gear; 95. rotating the rod; 96. rotating the gear; 97. a knob; 98. a first bevel gear; 99. a second bevel gear; 910. a sleeve; 911. a threaded rod; 912. a through hole; 913. a pin hole; 914. a pin rod.

The specific implementation mode is as follows:

in order to make the objects, technical solutions and advantages of the technical solutions of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the drawings of the specific embodiments of the present invention. Like reference symbols in the various drawings indicate like elements. It should be noted that the described embodiments are only some embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the invention without any inventive step, are within the scope of protection of the invention.

Referring to fig. 1-4, an embodiment of the present invention provides a glove box for 3D printing, including a forming chamber 1, a box plate 2 is disposed at an opening of the forming chamber 1, a sealing strip is disposed between the box plate 2 and the opening of the forming chamber 1 to ensure airtightness of the forming chamber 1 after the box plate 2 is closed, and ensure normal printing of a printing apparatus, a left side of the box plate 2 is hinged to the forming chamber 1 through two hinges 3, a right side of the box plate 2 is locked to the forming chamber 1 through a latch 4, a mirror frame 6 is hermetically and seamlessly connected to the box plate 2, a visible glass 7 is hermetically and seamlessly connected to the mirror frame 6, a glove 8 is disposed on the box plate 2, the glove 8 is located below the mirror frame 6, a cleaning assembly 5 is further disposed on the box plate 2, the cleaning assembly 5 includes a motor 51, a button 52 and a telescopic rod, the motor 51 and the button 52 are fixed on an outer wall surface of the box plate 2, the motor 51 and the button 52 are both located above the mirror frame 6, the motor 51 is positioned on the left side of the button 52, the output end of the motor 51 penetrates through the inner side of the box board 2 and is fixedly connected with a telescopic rod, the start and stop of the motor 51 are controlled through the button 52, and the motor 51 rotates to drive the telescopic rod to swing, the cleaning assembly 5 further comprises a longitudinal rod 55, a scraping strip 56 and slide rails 57, the slide rails 57 are fixed on the wall surface on the inner side of the mirror frame 6, two slide rails 57 are respectively positioned on the upper end and the lower end of the mirror frame 6, the longitudinal rod 55 is connected between the two slide rails 57 in a sliding manner, the longitudinal rod 55 is connected with the telescopic rod, the scraping strip 56 is fixedly connected on one surface of the longitudinal rod 55 close to the visible glass 7, the scraping strip 56 is a rubber strip, the scraping strip 56 is attached to the visible glass 7, the telescopic rod is used for driving the longitudinal rod 55 to reciprocate between the two slide rails 57, and then the longitudinal rod 55 is used for driving the scraping strip 56 to move, and the movable scraping strip 56 automatically cleans the mirror surface of the visible glass 7, time saving and labor saving, the simple operation, the telescopic link includes loop bar 53 and interior pole 54, the one end of loop bar 53 and the output fixed connection of motor 51, has cup jointed interior pole 54 in the loop bar 53, the one end that interior pole 54 is located the loop bar 53 outside is connected through the pivot rotation with the intermediate position of vertical pole 55, adjusts the holistic length of telescopic link through the length of interior pole 54 in loop bar 53, and then ensures that wobbling telescopic link can drive vertical pole 55 horizontal round trip movement.

The box plate II 2 is connected with the glove 8 through a linkage dismounting component 9, the head of the glove 8 extends into the forming chamber 1, four V-shaped grooves are arranged on an annular plate at the tail of the glove 8, the four V-shaped grooves on the glove 8 are correspondingly clamped with four V-shaped convex blocks at the mounting opening of the glove 8 on the box plate 2, a sealing strip is arranged at the joint of the annular plate at the tail of the glove 8 and the mounting opening of the glove 8 on the box plate 2, the glove 8 can be clamped at the corresponding position of the mounting opening of the glove 8 by utilizing the clamping of the V-shaped grooves and the V-shaped convex blocks, so as to ensure the quick locking of the linkage dismounting component 9 on the glove 8 and ensure the air tightness of the glove 8 after mounting, the linkage dismounting component 9 comprises an annular cavity 91, an inner mounting ring 92, a rotating ring 93, an outer gear 94, a rotating rod 95, a rotating gear 96 and a knob 97, the annular cavity 91 is arranged in the box plate 2, the annular cavity 91 surrounds the side of the mounting opening of the glove 8, an inner mounting ring 92 is fixedly connected in the annular cavity 91, one side of the inner mounting ring 92 is rotatably connected with a rotating ring 93, an outer gear 94 is arranged on the outer peripheral surface of the rotating ring 93, a rotating rod 95 is rotatably mounted on the box plate 2, one end of the rotating rod 95 extends to the inner side of the annular cavity 91 and is fixedly connected with a rotating gear 96, the rotating gear 96 is meshed with the outer gear 94, the other end of the rotating rod 95 is positioned on the outer side of the box plate 2 and is connected with a knob 97, the rotating gear 96 connected with the rotating rod 95 can be driven to rotate by the rotating knob 97, the rotating gear 96 drives the rotating ring 93 to rotate through the meshed outer gear 94, the linkage assembly and disassembly 9 further comprises a helical gear I98, a helical gear II 99, a sleeve 910, a threaded rod 911, a through hole 912, a pin hole 913 and a pin rod 914, the helical gear I98 is fixed on one side of the rotating ring 93, the sleeve 910 is rotatably connected on the inner mounting ring 92, the two ends of the sleeve 910 penetrate through the peripheral wall of the inner mounting ring 92, four sleeves 910 are symmetrically arranged, one end, located on the outer side of the inner mounting ring 92, of each sleeve 910 is fixedly connected with a second bevel gear 99, the second bevel gear 99 is in meshed connection with the first bevel gear 98, one end, located on the inner side of the inner mounting ring 92, of each sleeve 910 is in threaded connection with a threaded rod 911, one end, located on the outer side of each sleeve 910, of each threaded rod 911 is fixedly connected with a square pin rod 914, one end, away from the threaded rod 911, of each pin rod 914 is conical, a through hole 912 corresponding to the threaded rod 911 is arranged on the inner peripheral wall of the annular cavity 91, the two ends of each through hole 912 penetrate through the inner peripheral wall of the annular cavity 91, each through hole 912 is square, each through hole 912 is correspondingly clamped with each pin rod 914, each pin hole 913 is arranged on the annular plate at the tail of the glove 8, four pin holes 913 are arranged, each pin hole 913 is square, each pin hole 913 corresponds to the pin rod 914 to be matched with each other, and the corresponding rotating ring 93 drives the first bevel gear 98 to rotate, the first helical gear 98 drives the second helical gear 99 to rotate, the second helical gear 99 drives the sleeve 910 connected with the second helical gear to rotate, and under the action of the pin rod 914 and the through hole 912, the threaded rod 911 reciprocates so that the pin rod 914 moves into or out of the pin hole 913, the glove 8 is disassembled and assembled, and the glove 8 is convenient to replace.

The implementation mode is specifically as follows: when the 3D printing device works, when the mirror surface of the visible glass 7 is fuzzy, the button 52 is pressed, the motor 51 is started, the rotation of the motor 51 drives the telescopic rod to swing, the telescopic rod drives the longitudinal rod 55 to reciprocate between the two slide rails 57, and then the longitudinal rod 55 drives the scraping strip 56 to move, the movable scraping strip 56 automatically cleans the mirror surface of the visible glass 7, time and labor are saved, the operation is convenient, when the glove 8 needs to be replaced, the rotary knob 97 can drive the rotary gear 96 connected with the rotary rod 95 to rotate, the rotary gear 96 drives the rotary ring 93 to rotate through the meshed external gear 94, the rotary ring 93 drives the helical gear I98 to rotate, the helical gear I98 drives the helical gear II 99 to rotate, the helical gear II 99 drives the sleeve 910 connected with the helical gear II to rotate, under the action of the pin rod 914 and the through hole 912, the threaded rod 911 enables the head end of the pin rod 914 to be accommodated in the through hole 912, and then the pin rod 914 moves out of the pin hole 913, the glove 8 is taken out, the V-shaped groove on the new glove 8 is clamped on the V-shaped convex block at the mounting opening of the glove 8, the knob 97 is rotated reversely, the knob 97 can drive the rotating gear 96 connected with the rotating rod 95 to rotate, the rotating gear 96 drives the rotating ring 93 to rotate through the meshed external gear 94, the rotating ring 93 drives the helical gear one 98 to rotate, the helical gear one 98 drives the helical gear two 99 to rotate, the helical gear two 99 drives the sleeve 910 connected with the helical gear two to rotate, under the action of the pin rod 914 and the through hole 912, the threaded rod 911 enables the head end of the pin rod 914 to move out of the through hole 912, and further the pin rod 914 extends into the pin hole 913, thereby realizing the quick assembly and disassembly of the glove 8.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a glove box for 3D prints, includes shaping room (1), the oral area of shaping room (1) is provided with boxboard (2), the left side of boxboard (2) is articulated through two hinges (3) with shaping room (1), the right side of boxboard (2) is locked through hasp (4) with shaping room (1), sealed seamless connection has picture frame (6) on boxboard (2), sealed seamless connection has visual glass (7) in picture frame (6), be provided with gloves (8) on boxboard (2), gloves (8) are located the below of picture frame (6), its characterized in that, still be provided with cleaning assembly (5) on boxboard (2), boxboard two (2) link to each other through linkage dismouting subassembly (9) with gloves (8).

2. A 3D printing glove box according to claim 1, characterized in that: and a sealing strip is arranged between the box plate (2) and the opening part of the forming chamber (1).

3. A 3D printing glove box according to claim 1, characterized in that: clean subassembly (5) include motor (51), button (52) and telescopic link, motor (51) are fixed on the outer wall of boxboard (2) with button (52), motor (51) all are located the top of picture frame (6) with button (52), motor (51) are located the left side of button (52), the output of motor (51) passes to the inboard fixedly connected with telescopic link of boxboard (2).

4. A 3D printing glove box according to claim 3, characterized in that: clean subassembly (5) still include vertical pole (55), scrape strip (56) and slide rail (57), slide rail (57) are fixed on picture frame (6) inboard wall, slide rail (57) are provided with two, two slide rail (57) are located the upper and lower both ends of picture frame (6) respectively, two sliding connection has vertical pole (55) between slide rail (57), vertical pole (55) link to each other with the telescopic link, fixedly connected with scrapes strip (56) on vertical pole (55) is close to the one side of visual glass (7), it is the rubber strip to scrape strip (56), scrape strip (56) and paste mutually with visual glass (7).

5. A 3D printing glove box according to claim 3, characterized in that: the telescopic link includes loop bar (53) and interior pole (54), the one end of loop bar (53) and the output fixed connection of motor (51), interior pole (54) have been cup jointed in loop bar (53), the intermediate position that interior pole (54) are located the one end in loop bar (53) outside and vertical pole (55) is passed through the pivot and is rotated and be connected.

6. A 3D printing glove box according to claim 1, characterized in that: the head of gloves (8) stretches into in shaping room (1), four V type grooves have been seted up on the annular plate of gloves (8) afterbody, four V type grooves on gloves (8) and boxboard (2) go up four V type lugs of gloves (8) installing port department and correspond the block, the annular plate of gloves (8) afterbody and boxboard (2) go up the junction of gloves (8) installing port and are provided with the sealing strip.

7. A 3D printing glove box according to claim 1, characterized in that: the linkage dismounting component (9) comprises an annular cavity (91), an inner mounting ring (92), a rotating ring (93), an outer gear (94), a rotating rod (95), a rotating gear (96) and a knob (97), the annular cavity (91) is arranged in the box board (2), the annular cavity (91) surrounds the side of the glove (8) mounting opening, an inner mounting ring (92) is fixedly connected in the annular cavity (91), one side of the inner mounting ring (92) is rotatably connected with a rotating ring (93), the outer peripheral surface of the rotating ring (93) is provided with an outer gear (94), the rotating rod (95) is rotatably arranged on the box plate (2), one end of the rotating rod (95) extends to the inner side of the annular cavity (91) and is fixedly connected with a rotating gear (96), the rotating gear (96) is meshed with the outer gear (94), and the other end of the rotating rod (95) is located on the outer side of the box plate (2) and connected with a knob (97).

8. A 3D printing glove box according to claim 7, characterized in that: the linkage disassembling and assembling component (9) further comprises a first bevel gear (98), a second bevel gear (99), sleeves (910), a threaded rod (911), a through hole (912), pin holes (913) and pin rods (914), wherein the first bevel gear (98) is fixed on one surface of a rotating ring (93), the sleeves (910) are rotatably connected on an inner mounting ring (92), two ends of each sleeve (910) penetrate through the peripheral wall of the inner mounting ring (92), four sleeves (910) are symmetrically arranged, one end, located on the outer side of the inner mounting ring (92), of each sleeve (910) is fixedly connected with the second bevel gear (99), the second bevel gear (99) is meshed with the first bevel gear (98), one end, located on the inner side of the inner mounting ring (92), of each sleeve (910) is connected with the threaded rod (911) in a threaded manner, one end, located on the outer side of each sleeve (910), of each threaded rod (911) is fixedly connected with the square pin rod (914), the one end that threaded rod (911) was kept away from in pin pole (914) is the toper, be provided with through-hole (912) that correspond with threaded rod (911) on the interior perisporium of toroidal cavity (91), the interior perisporium that toroidal cavity (91) were run through at the both ends of through-hole (912), through-hole (912) are square, through-hole (912) correspond the block with pin pole (914), pinhole (913) are seted up on the annular slab of gloves (8) afterbody, pinhole (913) are provided with four, pinhole (913) are square, pinhole (913) and pin pole (914) correspond and the adaptation each other.