CN214157862U - Temporary storage device for replaceable intubation tube in digestive system department - Google Patents

Abstract

The utility model provides a temporary storage device for replaceable intubation tubes in the department of gastroenterology, which belongs to the technical field of intubation tube storage devices and aims to solve the problem that when a garbage can in the existing intubation tube storage device is used, medical personnel are not easy to smell peculiar smell due to wearing a mask, so that the closing of the garbage can cover is easily forgotten; two universal wheels and two directional wheels are respectively installed at four included angles of the bottom end face of the support frame, and a braking part is arranged on one directional wheel on the front side of the right part. When the barrel cover is forgotten to be closed, the fixing block is not clamped between the fixing clamping block and the sliding clamping block, so that the orientation wheel is in a braking state, the support frame cannot be pushed by medical workers at the moment, then the phenomenon that the barrel cover is not closed can be found in time, a large amount of germs in the garbage can not be propagated through air, and the environmental quality in a ward can not be influenced.

Description

Temporary storage device for replaceable intubation tube in digestive system department

Technical Field

The utility model belongs to the technical field of the intubate storage ware, more specifically say, in particular to a temporary storage ware that is used for gastroenterology to replace intubate.

Background

Intubation is a medical term meaning the insertion of a catheter into the body through a lumen in the body and the body for the infusion and aspiration of gases or liquids. Common intubation includes tracheal intubation (where the tube is inserted into the trachea of the person through the pharyngeal cavity and glottis for ventilation), gastric intubation (where the tube is inserted into the stomach of the person through the esophagus to draw gastric juice or to deliver nutrient solution).

As in application No.: CN201721366200.4 the utility model discloses a strorage device of multi-functional stomach tube, receive and release box and stomach tube suction head including the stomach tube, the inside that the stomach tube received and releases the box is fixed with the bracing piece, and the top welding of bracing piece has the cuff cover, the internally mounted of cuff cover has the soft plastics circle, the top of stomach tube suction head is provided with the thread connection cover, and the stomach tube suction head is located the below of soft plastics circle, the inside of stomach tube suction head is fixed with soft stopper, and the below of soft stopper installs the conduction pipe, the below of conduction pipe is provided with the suction opening stopper, and the below of suction opening stopper installs the imbibition flat mouth, the top of thread connection cover is provided with the stomach tube, the left side that the stomach tube received and released the box is fixed with the connecting plate, and the left side of connecting plate is provided with the hand wheel. This strorage device of multi-functional stomach tube can practice thrift the recovery cost of stomach tube, can effectively avoid the air in the pipeline to get the stomach at the infusion in-process of getting liquid, can prevent that gastric juice from flowing back to patient's stomach from the stomach tube simultaneously and causing the discomfort.

Based on the above patent search, and the discovery of the devices in the prior art, some patients need to feed food to the stomach through the gastric tube by means of nasal feeding because the food is difficult to feed, and because the drug, water and food are all fed through the gastric tube, so that the gastric tube needs to be replaced after a period of time, when replacing the gastric tube, a cannula storage is usually used, and the used gastric tube is put into a garbage can in the cannula storage, but the existing cannula storage has the following disadvantages in the actual use process, such as: garbage bin upper portion in the current intubate storage device, germ and peculiar smell pass through the air propagation in order to avoid the garbage bin, can be equipped with the bung usually, but after medical personnel open the bung, because medical personnel wear the gauze mask, be difficult for smelling the peculiar smell, the event forgets very easily to close the garbage bin bung, and then can make a large amount of germ pass through the air propagation in the garbage bin, thereby influence the environmental quality in the ward, and be used for depositing the drawer of depositing of treating the kaifeng intubate in the current intubate storage device and when carrying out cleaning work, owing to need will deposit the drawer and pull down and wash, and very trouble when dismantling, and then reduced the convenience when depositing the drawer cleanness.

Therefore, in view of the above, research and improvement are made on the existing structure and defects, and a temporary storage for a replaceable intubation tube in the department of gastroenterology is provided, so as to achieve the purpose of higher practical value.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a temporary storage ware for gastroenterology can replace intubate, with the garbage bin upper portion in solving current intubate storage ware, in order to avoid germ and peculiar smell to pass through the air propagation in the garbage bin, can be equipped with the bung usually, but after medical personnel opened the bung, because medical personnel worn the gauze mask, be difficult for smelling the peculiar smell, so forget very easily to close the garbage bin bung, and then a large amount of germs pass through the air propagation in can making the garbage bin, thereby influence the environmental quality in the ward, and be used for depositing the drawer of depositing of waiting to unseal the intubate in the current intubate storage ware and when carrying out cleaning work, owing to need will deposit the drawer and pull down and wash, and very troublesome when dismantling, and then reduced the problem of depositing the convenience when the drawer is clean.

The orthopedic splint with drug permeation of the utility model has the advantages that the purpose and the efficacy are achieved by the following specific technical means:

the temporary storage device for the replaceable intubation tube in the gastroenterology comprises a support frame, wherein a storage drawer is connected to the top of the inner side of the support frame in a sliding mode, and a garbage can is arranged on the right side of the support frame; two universal wheels and two directional wheels are respectively arranged at four included angles of the bottom end surface of the support frame, and a braking part is arranged on one directional wheel on the front side of the right part; a clamping mechanism is arranged on the front side of the top of the garbage can, and a pull rope is connected between the clamping mechanism and the braking piece; the support frame and the braking piece are provided with five pulleys, and the five pulleys are connected with the pull rope in a sliding manner; two limiting parts are symmetrically arranged at the rear side of the bottom end surface of the storage drawer in a left-right manner; fixture includes fixed clamp splice, supporting slide, slip clamp splice and pull rod, the equal fixed connection of fixed clamp splice and supporting slide is at the fixed plate up end, and supporting slide has the slip clamp splice through pull rod sliding connection, four contained angles departments of slip clamp splice right-hand member face all are equipped with the gag lever post with supporting slide sliding connection, the pull rod outside is located and has cup jointed the spring between supporting slide and the slip clamp splice, and the terminal surface is connected with the stay cord through the spliced pole before the slip clamp splice.

Further, the support frame includes Contraband font extension board, the inboard top of support frame is equipped with Contraband font extension board, and the forked tail spout has all been seted up to the left and right sides face in the Contraband font extension board, the bar opening has all been seted up to both ends face lower part about the Contraband font extension board, Contraband font extension board inboard has deposits the drawer through two forked tail spout sliding connection.

Further, deposit the drawer and include baffle, elasticity buckle and frame shape joint piece, deposit the drawer and control both ends face and all be equipped with a forked tail slider, and deposit the inboard bottom face of drawer and seted up the rectangle opening, it all is equipped with a frame shape joint piece to deposit the inboard bottom face of drawer and lie in the rectangle opening left and right sides, two rectangle sliding exits have all been seted up to the baffle bottom face left and right sides, and all are equipped with spacing guide arm in every rectangle sliding exit, the equal sliding connection in spacing guide arm outside in every rectangle opening has an elasticity buckle on the baffle, and the spring has all been cup jointed to spacing guide arm outside in every rectangle opening, works as when depositing the drawer and baffle and being located the mounted state, four elasticity buckles respectively with two frame shape joint piece looks joints.

Further, the garbage bin includes fixed plate, bung and fixed block, fixed plate fixed connection is on the support frame right side, and the circular through-hole has been seted up to the fixed plate up end, the fixed plate bottom face is located the circular through-hole outside and is equipped with the fillet of screw, and the outside lower extreme of fillet of screw has the garbage bin through threaded connection, the garbage bin periphery is personally submitted annular array form and is equipped with the protruding stripe of antiskid, and the inside bottom face of garbage bin is the arcwall face, fixed plate upper portion is rotated through the pivot and is connected with the bung, and is equipped with the fixed block on the bung.

Further, the arrester includes supporting slide plate and spacing slide bar, the quantity of supporting slide plate is two, and two supporting slide plate difference fixed connection are on a directional wheel support in support frame bottom right side, two the bar opening has all been seted up to the supporting slide opposite face, and all is equipped with a spacing slide bar in the rectangle opening on two supporting slide plates, two the outside front side of spacing slide bar has all been cup jointed the spring, and two outside rear side sliding connections of spacing slide bar have the arrester, the arrester rear end face is equipped with anti-skidding stripe.

Furthermore, when the opposite surfaces of the fixed clamping block and the sliding clamping block are contacted, the rear end surface of the braking part is tightly attached to the outer peripheral surface of one directional wheel on the right side of the bottom of the supporting frame.

Furthermore, the locating part includes square slider and spacing post of inserting, the locating part is square shell structure, and the inside sliding connection of locating part has square slider, both ends face is equipped with spacing post of inserting and a pulling rod respectively about square slider, and is equipped with the handle on the pulling rod, locating part inside is located pulling rod externally mounted and has the spring, works as when the locating part is in spacing state, spacing post of inserting slides with strip-shaped opening on Contraband font extension board and is connected.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. through the cooperation of arresting member and fixture, when medical personnel forget to close garbage bin upper portion bung, because the fixed block has not still been centre gripping between fixed clamp splice and slip clamp splice, thereby make the arresting member rear end face be in close phase with a directional wheel outer peripheral face in support frame bottom right side, thereby make directional wheel be in the brake state, thereby make medical personnel can't promote the support frame this moment, then will in time discover the phenomenon that the bung has not closed yet, and then can not make a large amount of germ pass through the air propagation in the garbage bin, thereby can not influence the environmental quality in the ward.

2. Through the setting of locating part, when needs will deposit drawer inside and clean, at first will deposit the drawer and stimulate forward, then pinch the pulling rod in two locating parts to the opposite direction, square slider drives spacing post of inserting and removes to the opposite direction in making two locating parts, thereby make two spacing posts of inserting separate with the bar opening of Contraband font extension board left and right sides respectively, thereby the messenger deposits the drawer and loses limiting displacement in Contraband font extension board, then will deposit the drawer pull down can, thereby it can to deposit the drawer when dismantling, thereby it is simpler when dismantling, and then improved the convenience when depositing the drawer cleanness.

Drawings

Fig. 1 is a schematic view of a first viewing angle structure of the present invention.

Fig. 2 is a schematic diagram of a partially enlarged structure at a in fig. 1 according to the present invention.

Fig. 3 is a schematic view of a second viewing angle structure according to the present invention.

Fig. 4 is a schematic structural diagram of the present invention in a disassembled state.

Fig. 5 is a schematic structural view of the storage drawer and the baffle of the present invention after being disassembled.

Fig. 6 is a schematic view of the storage barrel of the present invention in a partial sectional view.

Fig. 7 is a schematic diagram of a partially enlarged structure at B in fig. 4 according to the present invention.

Fig. 8 is a schematic diagram of a partially enlarged structure at C in fig. 4 according to the present invention.

Fig. 9 is a schematic view of the limiting member structure of the present invention.

In the drawings, the corresponding relationship between the component names and the reference numbers is as follows:

1. a support frame; 101. an Contraband-shaped support plate; 2. storing the drawer; 201. a baffle plate; 202. elastic buckle; 203. a frame-shaped clamping block; 3. a trash can; 301. a fixing plate; 302. a barrel cover; 303. a fixed block; 4. a stopper; 401. supporting the sliding plate; 402. a limiting slide bar; 5. a clamping mechanism; 501. fixing the clamping block; 502. a support slide block; 503. a sliding clamping block; 504. a pull rod; 6. pulling a rope; 7. a pulley; 8. a limiting member; 801. a square slider; 802. and (5) limiting the inserted column.

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example (b):

as shown in figures 1 to 9:

the utility model provides a temporary storage device for replaceable intubation tube in digestive system department, which comprises a support frame 1, wherein the top part of the inner side of the support frame 1 is connected with a storage drawer 2 in a sliding way, the support frame 1 comprises an Contraband-shaped support plate 101, the top part of the inner side of the support frame 1 is provided with a Contraband-shaped support plate 101, dovetail chutes are respectively arranged on the left side surface and the right side surface in the Contraband-shaped support plate 101, strip-shaped through openings are respectively arranged on the lower parts of the left end surface and the right end surface of the Contraband-shaped support plate 101, and the inner side of the Contraband-shaped support plate 101 is connected with the storage drawer 2 in a sliding way through two dovetail chutes; the garbage can 3 is arranged on the right side of the supporting frame 1, the garbage can 3 comprises a fixing plate 301, a can cover 302 and a fixing block 303, the fixing plate 301 is fixedly connected to the right side of the supporting frame 1, a circular through hole is formed in the upper end face of the fixing plate 301, a threaded ring is arranged on the bottom end face of the fixing plate 301, the lower end of the outer portion of the threaded ring is connected with the garbage can 3 through threads, anti-skid raised stripes are arranged on the outer periphery of the garbage can 3 in an annular array shape, the bottom end face of the inner portion of the garbage can 3 is an arc-shaped face, the upper portion of the fixing plate 301 is rotatably connected with the can cover 302 through a rotating shaft, and the fixing block 303 is arranged on the can cover 302; two universal wheels and two directional wheels are respectively arranged at four included angles of the bottom end surface of the support frame 1, and a braking part 4 is arranged on one directional wheel on the front side of the right part; a clamping mechanism 5 is arranged on the front side of the top of the garbage can 3, and a pull rope 6 is connected between the clamping mechanism 5 and the braking piece 4; the support frame 1 and the braking piece 4 are provided with five pulleys 7, and the five pulleys 7 are connected with the pull rope 6 in a sliding way; the rear side of the bottom end face of the storage drawer 2 is provided with two limiting pieces 8 in a bilateral symmetry manner, each limiting piece 8 comprises a square sliding block 801 and a limiting insertion column 802, each limiting piece 8 is of a square shell structure, the inside of each limiting piece 8 is connected with the corresponding square sliding block 801 in a sliding manner, the left end face and the right end face of each square sliding block 801 are respectively provided with the corresponding limiting insertion column 802 and one pulling rod, each pulling rod is provided with a handle, a spring is arranged outside each pulling rod inside each limiting piece 8, and when the limiting pieces 8 are in a limiting state, the limiting insertion columns 802 are connected with the strip-shaped openings in the Contraband-shaped support plates 101 in a sliding manner, so that the storage drawer 2 can achieve effective limiting effect; the clamping mechanism 5 comprises a fixed clamping block 501, a supporting slide block 502, a sliding clamping block 503 and a pull rod 504, wherein the fixed clamping block 501 and the supporting slide block 502 are fixedly connected to the upper end face of the fixed plate 301, the supporting slide block 502 is connected with the sliding clamping block 503 in a sliding mode through the pull rod 504, limiting rods in sliding connection with the supporting slide block 502 are arranged at four corners of the right end face of the sliding clamping block 503, a spring is sleeved between the supporting slide block 502 and the sliding clamping block 503 outside the pull rod 504, and the front end face of the sliding clamping block 503 is connected with a pull rope 6 through a connecting column; when the opposite surfaces of the fixed clamping block 501 and the sliding clamping block 503 are contacted, the rear end surface of the braking part 4 is in close contact with the outer peripheral surface of one directional wheel at the right side of the bottom of the support frame 1, so that the directional wheel at the right side of the bottom of the support frame 1 is in a braking state at the moment.

Wherein, it includes baffle 201 to deposit drawer 2, elasticity buckle 202 and frame shape joint piece 203, it all is equipped with a forked tail slider to deposit drawer 2 left and right sides both ends face, and deposit 2 inboard bottom faces of drawer and seted up the rectangle opening, it all is equipped with a frame shape joint piece 203 to deposit 2 inboard bottom faces of drawer and lie in the rectangle opening left and right sides, two rectangle sliding mouths have all been seted up to baffle 201 bottom face left and right sides, and all be equipped with spacing guide arm in every rectangle sliding mouth, the equal sliding connection in spacing guide arm outside of every rectangle opening has an elasticity buckle 202 on baffle 201, and the spring has all been cup jointed to spacing guide arm outside in every rectangle opening, when depositing drawer 2 and baffle 201 and being in the mounted state, four elasticity buckles 202 respectively with two frame shape joint piece 203 looks joints, make baffle 201 deposit drawer 2 bottoms and can obtain effectual limiting displacement.

Wherein, the arrester 4 is including supporting slide plate 401 and spacing slide bar 402, the quantity that supports slide plate 401 is two, and two support slide plate 401 respectively fixed connection on the directional wheel support in 1 bottom right side of support frame, the bar opening has all been seted up to two support slide plate 401 opposite faces, and all be equipped with a spacing slide bar 402 in the rectangle opening on two support slide plates 401, the spring has all been cup jointed to two spacing slide bar 402 outside front sides, and two spacing slide bar 402 outside rear side sliding connection have arrester 4, 4 rear end faces of arrester are equipped with anti-skidding stripe, make arrester 4 have better braking effect.

The specific use mode and function of the embodiment are as follows:

in the utility model, when the stomach tube is stored and used, the barrel cover 302 is firstly opened, then the used stomach tube is placed in the garbage can 3 for temporary storage, then the storage drawer 2 is pulled out forwards, then the stomach tube which is not unsealed in the storage drawer 2 is taken out for replacement, when the medical staff forgets to close the upper barrel cover 302 of the garbage can 3, since the fixed block 303 is not yet sandwiched between the fixed block 501 and the slide block 503, so that the rear end face of the braking part 4 is tightly attached to the outer peripheral face of one directional wheel at the right side of the bottom of the support frame 1, thereby the directional wheel is in a braking state, so that the medical staff can not push the support frame 1 at the moment, then, the phenomenon that the barrel cover 302 is not closed can be found in time, so that a large amount of germs in the garbage can 3 can not be transmitted through the air, and the environmental quality in a ward can not be influenced;

when the interior of the storage drawer 2 needs to be cleaned, the storage drawer 2 is pulled forwards firstly, then pulling rods in two limiting parts 8 are pinched towards opposite directions, square sliding blocks 801 in the two limiting parts 8 drive limiting insertion columns 802 to move towards opposite directions, and therefore the two limiting insertion columns 802 are separated from strip-shaped through openings on the left side and the right side of an Contraband-shaped supporting plate 101 respectively, the storage drawer 2 loses limiting effect in the Contraband-shaped supporting plate 101, and then the storage drawer 2 can be detached, so that the detachment is simpler, the convenience of cleaning the storage drawer 2 is improved, when cleaning, two adjacent elastic buckles 202 are pinched towards opposite directions through manual operation, then the baffle 201 can be detached from the bottom of the storage drawer 2, and the convenience of cleaning the interior of the storage drawer 2 is further improved.

The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.

Claims (7)

1. Temporary storage for a replaceable cannula for use in gastroenterology, characterized by: the garbage can comprises a support frame (1), wherein a storage drawer (2) is connected to the top of the inner side of the support frame (1) in a sliding mode, and a garbage can (3) is arranged on the right side of the support frame (1); two universal wheels and two directional wheels are respectively arranged at four included angles of the bottom end surface of the support frame (1), and a braking part (4) is arranged on one directional wheel on the front side of the right part; a clamping mechanism (5) is arranged on the front side of the top of the garbage can (3), and a pull rope (6) is connected between the clamping mechanism (5) and the braking part (4); the support frame (1) and the braking piece (4) are provided with five pulleys (7), and the five pulleys (7) are connected with the pull rope (6) in a sliding manner; two limiting pieces (8) are arranged on the rear side of the bottom end face of the storage drawer (2) in a bilateral symmetry manner; fixture (5) are including fixed clamp splice (501), supporting slide block (502), slip clamp splice (503) and pull rod (504), fixed clamp splice (501) and the equal fixed connection of supporting slide block (502) are at fixed plate (301) up end, and supporting slide block (502) have slip clamp splice (503) through pull rod (504) sliding connection, four contained angle departments of slip clamp splice (503) right-hand member face all are equipped with the gag lever post with supporting slide block (502) sliding connection, pull rod (504) outside is located and has cup jointed the spring between supporting slide block (502) and slip clamp splice (503), and the terminal surface is connected with stay cord (6) through the spliced pole before slip clamp splice (503).

2. A temporary storage for a replaceable cannula for use in gastroenterology according to claim 1, wherein: support frame (1) includes Contraband font extension board (101), support frame (1) inboard top is equipped with Contraband font extension board (101), and the forked tail spout has all been seted up to the left and right sides face in Contraband font extension board (101), the bar opening has all been seted up to both ends face lower part about Contraband font extension board (101), Contraband font extension board (101) inboard has through two forked tail spout sliding connection and deposits drawer (2).

3. A temporary storage for a replaceable cannula for use in gastroenterology according to claim 1, wherein: the storage drawer (2) comprises a baffle (201), an elastic buckle (202) and a frame-shaped clamping block (203), the left end surface and the right end surface of the storage drawer (2) are respectively provided with a dovetail slide block, a rectangular through hole is formed in the bottom end face of the inner side of the storage drawer (2), frame-shaped clamping blocks (203) are arranged on the left side and the right side of the rectangular through hole in the bottom end face of the inner side of the storage drawer (2), two rectangular sliding holes are formed in the left side and the right side of the bottom end face of the baffle plate (201), and each rectangular sliding port is internally provided with a limit guide rod, the outside of the limit guide rod in each rectangular through hole on the baffle plate (201) is connected with an elastic buckle (202) in a sliding way, and the outside of the limit guide rod in each rectangular through hole is sleeved with a spring, when the storage drawer (2) and the baffle (201) are in an installation state, the four elastic buckles (202) are respectively clamped with the two frame-shaped clamping blocks (203).

4. A temporary storage for a replaceable cannula for use in gastroenterology according to claim 1, wherein: garbage bin (3) are including fixed plate (301), bung (302) and fixed block (303), fixed plate (301) fixed connection is on support frame (1) right side, and fixed plate (301) up end has seted up circular through-hole, fixed plate (301) bottom face is located the outside screw ring that is equipped with of circular through-hole, and screw ring outside lower extreme has garbage bin (3) through threaded connection, garbage bin (3) periphery is personally submitted annular array form and is equipped with the protruding stripe of antiskid, and garbage bin (3) inside bottom face is the arcwall face, fixed plate (301) upper portion rotates through the pivot and is connected with bung (302), and is equipped with fixed block (303) on bung (302).

5. A temporary storage for a replaceable cannula for use in gastroenterology according to claim 1, wherein: stopper (4) are including supporting slide (401) and limit slide (402), the quantity that supports slide (401) is two, and two support slide (401) respectively fixed connection on support frame (1) bottom right side directional wheel support, two the bar opening has all been seted up to support slide (401) opposite face, and all is equipped with a limit slide (402) in two support slide (401) last rectangle openings, two limit slide (402) outside front side has all cup jointed the spring, and two limit slide (402) outside rear side sliding connection have stopper (4), stopper (4) rear end face is equipped with anti-skidding stripe.

6. A temporary storage for a replaceable cannula for use in gastroenterology according to claim 1, wherein: when the opposite surfaces of the fixed clamping block (501) and the sliding clamping block (503) are contacted, the rear end surface of the braking part (4) is in close contact with the outer peripheral surface of one directional wheel on the right side of the bottom of the support frame (1).

7. A temporary storage for a replaceable cannula for use in gastroenterology according to claim 1, wherein: locating part (8) are including square slider (801) and spacing post (802) of inserting, locating part (8) are square shell structure, and inside sliding connection of locating part (8) has square slider (801), both ends face is equipped with spacing post (802) and a pulling pole of inserting respectively about square slider (801), and is equipped with the handle on the pulling pole, locating part (8) inside is located pulling pole externally mounted and has the spring, works as when locating part (8) are in spacing state, and the bar opening slides on spacing post (802) and the Contraband font extension board (101) and is connected.

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