CN220576185U - Recombinant material mould pressing device - Google Patents

Abstract

The utility model discloses a recombined material mould pressing device, which belongs to the mould pressing field and comprises a mould pressing seat, wherein a mould pressing cavity is formed in the top side of the mould pressing seat, a mould pressing plate is arranged above the mould pressing seat, the mould pressing plate is matched with the mould pressing cavity, a hydraulic cylinder is pressed down, the hydraulic cylinder comprises a telescopic cylinder arranged above the mould pressing seat, a driving column is arranged at the output end of the telescopic cylinder, the bottom end of the driving column is fixedly connected with the top side of the mould pressing plate, after the recombined plate is subjected to mould pressing forming, the mould pressing plate moves upwards to return, a worker moves to pull a driving mechanism to drive a movable plate to move, the movable plate moves to drive an extrusion plate to move, a movable plate on an ejection mechanism is driven to move, and an ejection rod and an ejection block are driven to move, after the ejection block moves, the formed recombined plate can be ejected from the lower part, and the recombined plate can be taken out quickly and conveniently through pulling, so that the problem that the recombined plate is inconvenient to take out after the recombined plate is subjected to mould pressing forming is effectively solved.

Description

Recombinant material mould pressing device

Technical Field

The utility model relates to a die pressing device, in particular to a recombinant material die pressing device.

Background

The recombined wood is a thin wood board recombined material or a rubber material with precious tree species characteristics, the decoration material of the recombined wood is in the 50 th century of 20 th century, and through half century development, the recombined wood has reached a corresponding scale, and various excellent natural wood decoration recombined materials are suitable for families. For example, large panels in furniture production can be directly adhered to joinery boards, chipboards, medium density fiberboard and hard fiberboard to directly make decorative recombinants without panel coverage. In addition, the decorative wood material can be directly used as the edge of wallpaper and furniture, has the characteristics of low price, high quality and good quality, has various styles, is convenient to use and gives people an elegant feel.

In the prior art, according to Chinese patent, the patent with the application number of CN200820087813.9 discloses a mould pressing device for bamboo or wood recombined profiles, and the working principle is as follows: when the screw nut is in operation, the press head is firstly lifted to the highest position, the oil cylinder is used for shrinking the wedge blocks to the lower position, the inner die is arranged in the inner die cavity, the movable outer die block is arranged on the press workbench, one side of the groove (or the hole corresponding to one by one) is abutted against one side wall of the inner die, the lifting wedge blocks are tightly wedged between the leaning block and the movable outer die block, the inner die is firmly clamped and positioned, then raw materials such as bamboo wires or wood wires, bamboo connecting wire sheets and wood wire bundles are uniformly and approximately longitudinally added into the space clamped by the inner die cavity and the two retaining plates, the upper cover plate is put, the press is started, the cover plate and the bamboo wire materials are pressed down by the press head, after the pressure is pressed for a certain time, the pins penetrate through the fixed outer die block, the two side walls of the inner die and the pin through holes and the pin through grooves on the bottom surface of the press head, the telescopic rod of the oil cylinder is firstly shrunk, the wedge blocks are pulled out, the movable outer screw rods are outwards translated under the action of the outer elastic force of the side wall of the inner die, the whole inner die can be smoothly taken out, the cover plate, the inner die and the screw nuts and the two side walls can be screwed down by the screw nuts.

The recombined plate is placed together and is subjected to mould pressing again to form a new recombined plate, in the mould pressing process of the recombined plate, due to the fact that the mould pressing pressure is high, more plates in the mould pressing cavity can be extruded and formed, the formed plates can be located in the mould pressing cavity and are tightly attached to the inner wall of the mould pressing cavity, at the moment, the fact that workers take out the formed recombined plate is a difficult problem, and the recombined plate mould pressing device is provided for conveniently and rapidly taking out the formed plate.

Disclosure of Invention

The utility model aims to provide a recombined material mould pressing device, after recombined material mould pressing forming, a worker can drive an ejection block on an ejection mechanism to move by pulling a push-pull rod on a driving mechanism, so that the formed recombined material is ejected, and the worker can quickly take out the formed recombined material.

The technical aim of the utility model is realized by the following technical scheme: a recombinant material molding apparatus comprising:

the top side of the mould pressing seat is provided with a mould pressing cavity, and a mould pressing plate is arranged above the mould pressing seat and is matched with the mould pressing cavity;

the pressing hydraulic cylinder comprises a telescopic cylinder arranged above the die pressing seat, a driving column is arranged at the output end of the telescopic cylinder, and the bottom end of the driving column is fixedly connected with the top side of the die pressing plate;

the ejection mechanism comprises an ejection block arranged on the mould pressing seat, the ejection block is arranged on the bottom side of the mould pressing cavity, the bottom side of the ejection block is connected with a movable plate, the mould pressing seat is provided with an adjusting cavity, and the movable plate is positioned in the adjusting cavity;

the pulling driving mechanism comprises a movable plate movably arranged in the adjusting cavity, one side of the movable plate is rotatably provided with an extruding plate, one side of the extruding plate is rotatably arranged on the bottom side of the movable plate, one side of the movable plate is fixedly provided with two push-pull rods, and one ends of the two push-pull rods extend out of the die pressing seat.

Preferably, the bottom side inner wall of the adjusting cavity is provided with a limiting convex groove, the bottom side of the movable plate is fixedly provided with a limiting convex block, the limiting convex block is movably arranged in the limiting convex groove, one side inner wall of the adjusting cavity is provided with two push-pull holes, one ends of the two push-pull rods movably penetrate through the two push-pull holes and are fixedly provided with the same external connecting plate, one side of the external connecting plate is provided with a position limiting mechanism, and the position limiting mechanism is connected with one side of the die pressing seat.

Through adopting above-mentioned technical scheme, through the removal of external connection board, can drive the fly leaf and remove, the fly leaf can carry out horizontal migration under the removal limiting action of spacing lug to the cooperation stripper plate can be with the upward jack-up of fly leaf.

Preferably, the bottom side inner wall of the mould pressing cavity is provided with a jacking block notch, the bottom side inner wall of the jacking block notch is provided with a moving hole, the moving hole is communicated with the regulating cavity, an ejector rod is fixedly arranged on the ejector of the moving plate, the top end of the ejector rod movably penetrates through the moving hole and is fixedly arranged on the bottom side of the ejector block, a group of guide posts are fixedly arranged on the ejection and bottom side inner wall of the regulating cavity, the moving plate is movably sleeved on the group of guide posts, the ejector block is positioned in the jacking block notch, the ejector block is matched with the jacking block notch, and the bottom side inner wall of the top side mould pressing cavity of the ejector block is flush.

Through adopting above-mentioned technical scheme, the ejection mechanism of setting, the back can be removed through ejecting the piece to the movable plate, with the reorganization panel after the shaping ejecting to conveniently take out the reorganization panel after the shaping fast.

Preferably, four support columns are fixedly arranged on the ejection of the mould pressing seat, the same top plate is fixedly arranged at the top ends of the four support columns, the telescopic cylinder is fixedly arranged on the ejection of the top plate, and the output end of the telescopic cylinder movably penetrates through the top plate.

Through adopting above-mentioned technical scheme, support column and the top board that set up can carry out stable installation to the pneumatic cylinder.

Preferably, the position limiting mechanism comprises one end of a limiting reset spring fixedly arranged on one side of the external connecting plate, and the other end of the limiting reset spring is fixedly arranged on one side of the die pressing seat.

Through adopting above-mentioned technical scheme, the spacing reset spring of setting drives outside connecting plate return to drive ejecting piece downwardly moving, and move to in the ejector block notch, make the bottom side of ejecting piece laminate mutually with the bottom side of ejector block notch, be convenient for carry out the mould pressing operation next time.

Preferably, the position limiting mechanism comprises a convex sliding groove formed in one side of the die pressing seat, a convex sliding block is slidably mounted in the convex sliding groove, one side of the convex sliding block extends out of the convex sliding groove, an inserting rod is fixedly mounted on the bottom side of the convex sliding block and connected with an external connecting plate, an inserting hole is formed in the ejection of the external connecting plate, the inserting rod is matched with the inserting hole, an arc-shaped extrusion surface is formed in one side of the inserting rod and matched with the inserting hole, one end of an extrusion spring is fixedly mounted on the ejection end of the convex sliding block, the other end of the extrusion spring is fixedly mounted on the inner wall of the top side of the convex sliding groove, and a pulling handle is fixedly mounted on the ejection end of the convex sliding block.

Through adopting above-mentioned technical scheme, the arc extrusion face on the inserted bar will contact with the jack earlier, along with continuous extrusion, the inserted bar can be compressed tightly, and in final inserted bar will be pegged into the jack completely, and ejecting piece will steadily place in the ejector block notch this moment, is difficult for receiving not hard up influence, and placement stability is strong.

In summary, after the recombined plate is molded by compression molding, the molding plate moves upwards to return, a worker moves to pull the driving mechanism, the movable plate is driven to move, the movable plate moves to drive the extrusion plate to move, the movable plate on the ejection mechanism is driven to move, the ejection rod and the ejection block are driven to move, and after the ejection block moves, the molded recombined plate can be ejected from the lower part, and the recombined plate can be taken out quickly and conveniently by pulling, so that the problem that the recombined plate is inconvenient to take out after the recombined plate is molded by compression molding is effectively solved;

according to the die pressing device, the external connecting plate is driven to return through the limiting reset spring on the position limiting mechanism, so that the ejector block is driven to move downwards and move into the ejector block notch, the bottom side of the ejector block is attached to the bottom side of the ejector block notch, and the next die pressing operation is facilitated;

this application utilizes pulling handle to loosen on the position-limiting mechanism, and protruding type slider will drive protruding type slider and inserted bar downwardly moving under extrusion spring's elasticity effect, and the arc extrusion face on the inserted bar will contact with the jack earlier, along with continuous extrusion, and the inserted bar can be compressed tightly, and in final inserted bar will inject the jack completely, the ejecting piece will steadily place in the kicking block notch this moment, is difficult for receiving not hard up influence, and placement stability is strong.

Drawings

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a schematic diagram of a cross-section of the present utility model;

FIG. 3 is a schematic view of a hold-down hydraulic cylinder of the present utility model;

FIG. 4 is a schematic view of an ejection mechanism of the present utility model;

FIG. 5 is a schematic view of the pull-on mechanism of the present utility model;

FIG. 6 is a schematic view of a position limiting mechanism in embodiment 1 of the present utility model;

fig. 7 is a schematic view of a position limiting mechanism in embodiment 2 of the present utility model.

In the figure: 1. molding a seat; 2. a molding cavity; 3. a die pressing plate; 4. pressing down a hydraulic cylinder; 41. a support column; 42. a top plate; 43. a telescopic cylinder; 44. driving the column; 5. a regulating chamber; 6. an ejection mechanism; 61. a top block notch; 62. a moving hole; 63. an ejection block; 64. an ejector rod; 65. a moving plate; 66. a guide post; 7. pulling the driving mechanism; 71. a movable plate; 72. an extrusion plate; 73. limiting convex grooves; 74. a limit bump; 75. a push-pull rod; 76. pushing and pulling the hole; 77. an external connection board; 78. a position limiting mechanism; 781. a limit reset spring; 782. a convex chute; 783. a convex slide block; 784. extruding a spring; 785. a rod; 786. a jack; 787. an arc extrusion surface; 788. pulling the handle.

Detailed Description

The present utility model will be described in further detail with reference to the accompanying drawings.

The present embodiment is only for explanation of the present utility model and is not to be construed as limiting the present utility model, and modifications to the present embodiment, which may not creatively contribute to the present utility model as required by those skilled in the art after reading the present specification, are all protected by patent laws within the scope of claims of the present utility model.

Example 1:

as shown in fig. 1-2, mould pressing seat 1, mould pressing chamber 2 has been seted up to mould pressing seat 1's top side, mould pressing seat 1's top is equipped with mould pressing plate 3, mould pressing plate 3 and mould pressing chamber 2 looks adaptation, mould pressing plate 3 moves down to mould pressing intracavity 2, can carry out mould pressing operation to the panel of placing, push down pushing mechanism 4 is including installing the pneumatic cylinder 43 in mould pressing seat 1 top, the output of pneumatic cylinder 43 installs drive post 44, the bottom of drive post 44 and the topside fixed connection of mould pressing plate 3, the pneumatic cylinder 43 moves, can drive mould pressing plate 3 and move down, carry out mould pressing operation, ejector mechanism 6 is including installing the ejector pad 63 on mould pressing seat 1, ejector pad 63 sets up on mould pressing chamber 2's bottom side, ejector pad 63's bottom side is connected with movable plate 65, be equipped with regulating chamber 5 on mould pressing seat 1, movable plate 65 is located regulating chamber 5, ejector mechanism 6 that sets up, the ejector mechanism 7 is convenient for through the reorganization ejector pad after the shaping, drive mechanism 7 includes movable plate 71, the ejector pad 71 is installed to the movable plate 71, one side of 75 is installed to the movable plate 72 is convenient for move, one side of the movable plate is installed to the movable plate 71, 75 is installed on movable plate 72.

As shown in fig. 5, a limiting convex groove 73 is formed on the inner wall of the bottom side of the adjusting cavity 5, a limiting convex block 74 is fixedly mounted on the bottom side of the movable plate 71, the limiting convex block 74 is movably mounted in the limiting convex groove 73, two push-and-pull holes 76 are formed on the inner wall of one side of the adjusting cavity 5, one end of each push-and-pull rod 75 movably penetrates through the two push-and-pull holes 76 and is fixedly mounted with the same external connecting plate 77, a position limiting mechanism 78 is arranged on one side of the external connecting plate 77, the position limiting mechanism 78 is connected with one side of the die pressing seat 1, a worker moves and pulls the external connecting plate 77 on the driving mechanism 7, after the external connecting plate 77 moves, the two push-and-pull rods 75 are driven to move, the movable plate 71 is driven to move after the two push-and-pull rods 75 are moved, the movable plate 71 is driven to slide in the limiting convex groove 73, the limiting convex block 74 and the limiting convex groove 73 are arranged, and the movable plate 71 can be limited, and the movable plate 71 is driven to move the extruding plate 72, so that the movable plate 65 on the ejection mechanism 6 is driven to move.

As shown in fig. 2 and fig. 4, the bottom side inner wall of the mold cavity 2 is provided with a top block notch 61, the bottom side inner wall of the top block notch 61 is provided with a moving hole 62, the moving hole 62 is communicated with the adjusting cavity 5, the ejection and fixing of the moving plate 65 is provided with an ejector rod 64, the top end of the ejector rod 64 movably penetrates through the moving hole 62 and is fixedly arranged on the bottom side of the ejection block 63, the ejection and fixing of the adjusting cavity 5 are provided with a group of guide posts 66 on the bottom side inner wall, the moving plate 65 is movably sleeved on the group of guide posts 66, the ejection block 63 is positioned in the top block notch 61, the ejection block 63 is matched with the top block notch 61, the bottom side inner wall of the top side mold cavity 2 of the ejection block 63 is flush with the moving plate 65, the moving plate 65 slides on the two guide posts 66, the moving plate 65 can be limited, the moving plate 65 moves in a vertical mode, the moving plate 65 drives the ejector rod 64 and the ejection block 63 to move, the plate can be pushed up after being molded from below, the plate can be quickly and the plate can not be conveniently taken out after being molded.

As shown in fig. 3, four support columns 41 are fixedly installed on the ejection of the mould pressing seat 1, the same top plate 42 is fixedly installed on the top ends of the four support columns 41, a hydraulic cylinder 43 is fixedly installed on the ejection of the top plate 42, the output end of the hydraulic cylinder 43 movably penetrates through the top plate 42, the hydraulic cylinder 43 on the pushing mechanism 4 is started to operate, the driving column 44 moves downwards, the mould pressing plate 3 is driven to move downwards, the mould pressing plate moves into the mould pressing cavity 2, and various plates can be pressed into recombined plates through huge pressure.

As shown in fig. 6, the position limiting mechanism 78 includes one end of a limiting return spring 781 fixedly installed on one side of the external connection plate 77, and the other end of the limiting return spring 781 is fixedly installed on one side of the mold pressing seat 1, after the removal, the external connection plate 77 is driven to return under the action of the limiting return spring 781 on the position limiting mechanism 78, so as to drive the ejector block 63 to move downwards and move into the ejector block notch 61, so that the bottom side of the ejector block 63 is attached to the bottom side of the ejector block notch 61, and the next mold pressing operation is facilitated.

Working principle: when a plurality of boards are molded, a plurality of pressing plates are placed in the molding cavity 2, after the boards are placed, the hydraulic cylinder 43 on the pushing mechanism 4 is started to operate, the driving post 44 moves downwards and drives the molding plate 3 to move downwards into the molding cavity 2, the boards can be molded into a recombined board by huge pressure, after the recombined board is molded, the molding plate 3 moves upwards to return, at the moment, the staff moves to pull the external connecting plate 77 on the driving mechanism 7, after the external connecting plate 77 moves, the two push-pull rods 75 are driven to move, after the two push-pull rods 75 move, the movable plate 71 is driven to move, the limiting protruding blocks 74 are driven to slide in the limiting protruding grooves 73, the arranged limiting protruding blocks 74 and the limiting protruding grooves 73 can limit the movement of the movable plate 71, the movable plate 71 moves to drive the extrusion plate 72 to move, thereby driving the movable plate 65 on the ejection mechanism 6 to move, the movable plate 65 slides on the two guide posts 66, the two guide posts 66 can limit the movement of the movable plate 65, the movable plate 65 moves in a vertical mode, the movable plate 65 moves to drive the ejector rod 64 and the ejector block 63 to move, after the ejector block 63 moves, the formed recombined plate can be ejected from the lower part, the recombined plate can be quickly and conveniently taken out through pulling, the problem that the recombined plate is inconvenient to take out after compression molding is effectively solved, after taking out is finished, the external connecting plate 77 is driven to return under the action of the limiting return spring 781 on the position limiting mechanism 78, so as to drive the ejector block 63 to move downwards and move into the ejector block notch 61, the bottom side of the ejector block 63 is attached to the bottom side of the ejector block notch 61, and the next compression molding operation is facilitated, the lifting handle 788 is pulled on the position limiting mechanism 78 to be loosened, the convex sliding block 783 drives the convex sliding block 783 and the inserting rod 785 to move downwards under the action of the elastic force of the extrusion spring 784, the arc extrusion surface 787 on the inserting rod 785 is contacted with the inserting hole 786 firstly, the inserting rod 785 can be tightly pressed along with continuous extrusion, finally the inserting rod 785 is completely inserted into the inserting hole 786, at the moment, the ejection block 63 is stably placed in the ejector block notch 61, the ejection block is not easy to loosen, the placement stability is high, and the use is convenient.

Example 2:

as shown in fig. 7, in a recombinant material molding apparatus, embodiment 2 is different from embodiment 1 in that the position limiting mechanism 78 is different, and the position limiting mechanism 78 in embodiment 2 is as follows: the position limiting mechanism 78 comprises a convex sliding groove 782 formed in one side of the die pressing seat 1, a convex sliding block 783 is slidably mounted in the convex sliding groove 782, one side of the convex sliding block 783 extends out of the convex sliding groove 782, a plunger 785 is fixedly mounted on the bottom side of the convex sliding block 783, the plunger 785 is connected with an external connecting plate 77, a jack 786 is formed in the ejection of the external connecting plate 77, the plunger 785 is matched with the jack 786, an arc-shaped extrusion surface 787 is formed in one side of the plunger 785, the arc-shaped extrusion surface 787 is matched with the jack 786, one end of an extrusion spring 784 is fixedly mounted on the ejection of the convex sliding block 783, the other end of the extrusion spring 784 is fixedly mounted on the inner wall of the top side of the convex sliding groove 782, and a pulling handle 788 is fixedly mounted on the ejection of the convex sliding block 783.

The principle of this embodiment is similar to embodiment 1, with the main differences: the lifting handle 788 is pulled on the position limiting mechanism 78 to be loosened, the convex sliding block 783 drives the convex sliding block 783 and the inserting rod 785 to move downwards under the action of the elastic force of the extrusion spring 784, the arc extrusion surface 787 on the inserting rod 785 is firstly contacted with the inserting hole 786, the inserting rod 785 can be tightly pressed along with continuous extrusion, and finally the inserting rod 785 is completely inserted into the inserting hole 786, at the moment, the ejection block 63 is stably placed in the ejection block notch 61, the ejection block is not easy to be affected by looseness, the placement stability is strong, and the principle of other parts is the same as that of the embodiment 1, and details are omitted.

Claims (9)

1. The utility model provides a reorganization material mould pressing device which characterized in that includes

The die pressing seat (1), a die pressing cavity (2) is formed in the top side of the die pressing seat (1), a die pressing plate (3) is arranged above the die pressing seat (1), and the die pressing plate (3) is matched with the die pressing cavity (2);

the pressing hydraulic cylinder (4), the pressing hydraulic cylinder (4) comprises a telescopic cylinder (43) arranged above the die pressing seat (1), a driving column (44) is arranged at the output end of the telescopic cylinder (43), and the bottom end of the driving column (44) is fixedly connected with the top side of the die pressing plate (3);

the ejection mechanism (6), the ejection mechanism (6) comprises an ejection block (63) arranged on the mould pressing seat (1), the ejection block (63) is arranged on the bottom side of the mould pressing cavity (2), the bottom side of the ejection block (63) is connected with a movable plate (65), the mould pressing seat (1) is provided with an adjusting cavity (5), and the movable plate (65) is positioned in the adjusting cavity (5);

the device comprises a pulling driving mechanism (7), wherein the pulling driving mechanism (7) comprises a movable plate (71) movably installed in an adjusting cavity (5), one side of the movable plate (71) is rotatably provided with a squeezing plate (72), one side of the squeezing plate (72) is rotatably installed on the bottom side of a moving plate (65), one side of the movable plate (71) is fixedly provided with two push-pull rods (75), and one ends of the two push-pull rods (75) are all extended out of a die pressing seat (1).

2. A recombinant material molding apparatus according to claim 1, wherein: limiting convex grooves (73) are formed in the inner wall of the bottom side of the adjusting cavity (5), limiting convex blocks (74) are fixedly mounted on the bottom side of the movable plate (71), and the limiting convex blocks (74) are movably mounted in the limiting convex grooves (73).

3. A recombinant material molding apparatus according to claim 1, wherein: two push-pull holes (76) are formed in the inner wall of one side of the adjusting cavity (5), one end of each push-pull rod (75) movably penetrates through the two push-pull holes (76) and is fixedly provided with the same external connecting plate (77), one side of the external connecting plate (77) is provided with a position limiting mechanism (78), and the position limiting mechanism (78) is connected with one side of the die pressing seat (1).

4. A recombinant material molding apparatus according to claim 1, wherein: the ejector block notch (61) is formed in the inner wall of the bottom side of the mould pressing cavity (2), the moving hole (62) is formed in the inner wall of the bottom side of the ejector block notch (61), the moving hole (62) is communicated with the adjusting cavity (5), the ejector rod (64) is fixedly arranged in the ejector of the moving plate (65), the top end of the ejector rod (64) movably penetrates through the moving hole (62) and is fixedly arranged on the bottom side of the ejector block (63), a group of guide posts (66) are fixedly arranged on the inner wall of the bottom side and the ejector of the adjusting cavity (5), and the moving plate (65) is movably sleeved on the group of guide posts (66).

5. The recombinant material molding apparatus of claim 4 wherein: the ejection block (63) is positioned in the ejection block notch (61), the ejection block (63) is matched with the ejection block notch (61), and the inner wall of the bottom side of the top side mould pressing cavity (2) of the ejection block (63) is flush.

6. A recombinant material molding apparatus according to claim 1, wherein: four support columns (41) are fixedly arranged on the ejection of the mould pressing seat (1), the same top plate (42) is fixedly arranged at the top ends of the four support columns (41), the telescopic cylinder (43) is fixedly arranged on the ejection of the top plate (42), and the output end of the telescopic cylinder (43) movably penetrates through the top plate (42).

7. A recombinant material molding apparatus according to claim 3, wherein: the position limiting mechanism (78) comprises one end of a limiting reset spring (781) fixedly arranged on one side of the external connecting plate (77), and the other end of the limiting reset spring (781) is fixedly arranged on one side of the die pressing seat (1).

8. A recombinant material molding apparatus according to claim 3, wherein: the position limiting mechanism (78) comprises a convex sliding groove (782) formed in one side of the die pressing seat (1), a convex sliding block (783) is arranged in the convex sliding groove (782) in a sliding mode, one side of the convex sliding block (783) extends out of the convex sliding groove (782), a plug rod (785) is fixedly arranged at the bottom side of the convex sliding block (783), and the plug rod (785) is connected with an external connecting plate (77).

9. The recombinant material molding apparatus of claim 8 wherein: jack (786) has been seted up in ejecting of external connection board (77), arc extrusion face (787) has been seted up to inserted bar (785) and jack (786) looks adaptation, arc extrusion face (787) and jack (786) looks adaptation, the one end of extrusion spring (784) is installed to the ejecting fixed mounting of protruding slider (783), the other end fixed mounting of extrusion spring (784) is on the topside inner wall of protruding spout (782), the ejecting fixed mounting of protruding slider (783) has pulling handle (788).