CN209900322U

CN209900322U - Pin gang switch for needle automatic separator

Info

Publication number: CN209900322U
Application number: CN201920050140.8U
Authority: CN
Inventors: 王维文
Original assignee: ZHEJIANG HUAFU MEDICAL EQUIPMENT CO Ltd
Current assignee: ZHEJIANG HUAFU MEDICAL EQUIPMENT CO Ltd
Priority date: 2019-01-11
Filing date: 2019-01-11
Publication date: 2020-01-07
Anticipated expiration: 2029-01-11

Abstract

The utility model discloses a contact pin linkage switch for a needle head automatic separator, which comprises a casing, a movable switch plate and a travel switch; the side wall of the shell is provided with a mounting opening; the movable switch board is arranged in the mounting opening and can move back and forth in the mounting opening, and a pin opening is formed in the movable switch board; travel switch sets up in the installation cavity of casing to travel switch's contact can with the movable switch board after the inside removal of installation cavity, and is stirred. The utility model discloses effectively reduced the probability that syringe needle separating mechanism was started by the mistake to and saved the cost.

Description

Pin gang switch for needle automatic separator

Technical Field

The utility model relates to a separator, more specifically relates to a pull out from contact pin gang switch that is used for syringe needle autosegregation ware of metal injection head.

Background

In clinical care work, infusion is the most basic and most common maximum care operation, and according to hospital infection management requirements, in order to avoid environmental pollution and disease dissemination again, disposable syringes are destroyed on the spot. Clinical nursing staff usually manually separates the infusion needle head from the needle cylinder, manually cuts off the metal injection head of the needle head by scissors and puts the metal injection head into a sharp instrument box, and the needle is easy to be injured by a needle during operation, thereby bringing potential safety hazards to medical staff.

The existing market has a needle pulling machine, and the needle pulling machine is driven by infrared induction, namely after an infrared induction device in the needle pulling machine induces an external induction object, a needle pulling mechanism in the needle pulling machine is started. The needle pulling mechanism is started through infrared induction, and has more defects: 1. the cost is relatively high; 2. the needle puller is frequently in the condition of error induction, so that the needle puller runs frequently in an idle state.

SUMMERY OF THE UTILITY MODEL

The utility model provides a not enough to prior art, the utility model provides a contact pin linked switch for syringe needle autosegregation ware has effectively reduced the probability that syringe needle separating mechanism was started by the mistake to and saved the cost.

In order to achieve the above purpose, the utility model provides a following technical scheme:

a contact pin gang switch for a needle automatic separator is characterized in that: the contact pin linkage switch comprises a shell, a movable switch plate and a travel switch;

the side wall of the shell is provided with a mounting opening;

the movable switch board is arranged in the mounting opening and can move back and forth in the mounting opening, and a pin opening is formed in the movable switch board;

travel switch sets up in the installation cavity of casing to travel switch's contact can with the movable switch board after the inside removal of installation cavity, and is stirred.

Preferably, the contact pin gang switch still includes the elasticity piece that resets, the one end that the elasticity resets is supported and is leaned on the movable switch board, and the other end supports and leans on in the installation cavity of casing to give the movable switch board the outside driving force that removes of casing installation cavity.

Preferably, the needle insertion opening comprises a large needle opening and a small needle opening.

Preferably, a thickened area is formed on one side, back to the casing installation groove, of the movable switch board, and the pin port is located in the thickened area.

The utility model has the advantages that: the probability that the needle separating mechanism is started by mistake is effectively reduced, and the cost is saved.

Drawings

FIG. 1 is a schematic view of the automatic needle separator provided in the present embodiment;

FIG. 2 is a schematic view of the interior of the automatic needle separator provided in this embodiment;

fig. 3 is a schematic diagram of a driving assembly provided in the present embodiment;

fig. 4 is a schematic view of the movable switch plate and the elastic reset element provided in this embodiment;

FIG. 5 is a schematic view of the needle forceps provided in this embodiment;

FIG. 6 is a schematic view of a guide block provided in the present embodiment;

fig. 7 is a schematic view of the collection container provided in this embodiment.

Detailed Description

The needle inserting linked switch for the automatic needle separator of the present invention will be further described with reference to fig. 1 to 7.

A needle linked switch for an automatic needle separator comprises a shell 100, a needle separating mechanism 400, a needle linked switch 200 and a collecting container 300;

the housing 100 has a mounting cavity therein, in this embodiment, the mounting cavity is divided into a front mounting cavity 120, a rear mounting cavity 110 and an upper mounting cavity 130, and the mounting cavities are separated by a partition.

The pin gang switch 200 is installed on the side wall of the casing 100 and electrically connected with the electrical components in the needle separating mechanism 400 to drive the needle separating mechanism 400 to operate, and the pin gang switch 200 has a pin opening 230;

the needle separating mechanism 400 is arranged in the upper mounting cavity 130 and comprises a guide block 410, a needle pulling clamp 420 and a driving component;

the driving component is connected with the needle pulling clamp 420 and drives the needle pulling clamp 420 to reciprocate in the direction vertical to the needle inserting opening;

the needle withdrawing forceps 420 comprises a first forceps arm 421, a second forceps arm 422 and an elastic member 426, wherein a first end of the first forceps arm 421 and a first end of the second forceps arm 422 are hinged, a needle withdrawing port 425 corresponding to the needle inserting port 230 is formed between a second end of the first forceps arm 421 and a second end of the second forceps arm 422, and the elastic member 426 is arranged in the needle withdrawing port 425 and provides an opening force for the needle withdrawing port 425; the outer sides of the second ends of the first forceps arm 421 and the second forceps arm 422 are both provided with a guide part;

the guide blocks 410 are positioned at two sides of the needle pulling forceps 420, the guide blocks 410 are respectively provided with an elastic guide driving part 411 for the sliding fit of the guide parts, and when the guide parts move through the elastic guide driving parts, the elastic guide driving parts 411 drive the needle pulling openings 425 to clamp;

the collection container 300 is disposed within the front mounting cavity 120 and below the needle withdrawal opening 425.

The embodiment is further configured as follows: the pin gang switch 200 includes a square movable switch plate 210 and a travel switch 220;

the side wall of the casing 100 is provided with an installation opening 150, the installation opening 150 communicates the upper installation cavity 130 with the outside of the casing 100, and the inner wall of the installation opening 150 is provided with an installation groove 151;

the movable switch board 210 is arranged in the mounting opening and can move back and forth in the mounting opening, the peripheral edge position of the movable switch board 210 is limited in the mounting groove 151 so as to limit the back and forth movement range of the movable switch board 210, the problem that the movable switch board 210 is accidentally separated from the mounting opening is solved, and the pin inserting opening is formed in the movable switch board 210;

the travel switch 220 is arranged on the mounting plate frame 131 in the upper mounting cavity 130, and at a position close to the mounting opening, a contact of the travel switch 220 can be contacted with the movable switch plate 210 moving towards the inside of the upper mounting cavity and can be shifted.

Under this setting, medical personnel can promote movable switch board in mounting cavity 130 towards when inserting the contact pin intraoral with the syringe head, make movable switch board and travel switch 220's contact, and stir this contact, thereby electrical apparatus in the drive assembly is switched on the circular telegram, and the operation is pulled out the needle operation in the operation, because travel switch 220's contact has the elasticity that resets, so after the thrust cancellation of outside to movable switch board 210, movable switch board 210 is under the bounce-back effect of contact, can move towards the outside of casing 100, process operation is simple, and need promote movable switch board and just can start drive assembly, consequently, effectively reduced drive assembly by the probability that does not start, and simultaneously, travel switch is for inductive switch, corresponding cost has effectually been saved.

Contact pin gang switch 200 still includes elasticity piece 220 that resets, and this elasticity resets and is the spring, the one end that elasticity resets 220 supports and leans on movable switch board 210, and the other end supports and leans on in the installation cavity to give movable switch board 210 the outside driving force who removes of installation cavity. In this embodiment, the movable switch board 210 has a protrusion 212 on one side facing the upper mounting cavity 130, the protrusion 212 has a first positioning hole, and correspondingly, the upper mounting cavity 130 has a positioning block at a position corresponding to the mounting opening, the positioning block has a second positioning hole thereon, and the elastic reset element 220 is a spring, so that two ends of the spring are respectively limited in the first positioning hole and the second positioning hole. With this arrangement, the movable switch plate 210 can be stably positioned at the outermost side of the mounting opening in a state where the external force is cancelled.

The needle insertion openings include a large needle opening 232 and a small needle opening 231. The large needle opening 232 and the small needle opening 231 can be respectively used for inserting large and small needle heads to pull out the needles, and the use flexibility is obviously improved. When the needle seat of the injector needs to be destroyed to realize the disposable use of the injector, the needle seat of the injector and the metal injection head are inserted into the large needle opening to cut off and pull out the needle seat part, so that the disposable use of the injector and the destruction after use are realized, and the use safety of the injector is obviously improved; the small needle port is used for insertion of a fine needle such as an intravenous needle.

The shaping has thickened area 211 on the one side of activity switch board 210 mounting groove in the back of, big needle mouth 232 and little needle mouth 231 all are located on the thickened area 211, this thickened area 211 can increase the degree of depth of big needle mouth 232 and little needle mouth 231 to be used for holding the plastics coupling part of syringe needle, can also increase structural strength simultaneously, improve the stability of pulling out the needle.

The embodiment is further configured as follows: the elastic member 426 is a U-shaped elastic sheet, two elastic walls of the U-shaped elastic sheet are respectively fixed on the inner walls of the first tong arm 421 and the second tong arm 422, that is, positioning holes are respectively formed on the two elastic walls of the U-shaped elastic sheet and the inner walls of the first tong arm 421 and the second tong arm 422, the positioning holes on the elastic walls are butted with the positioning holes on the first tong arm 421 or the second tong arm 422, and after the positioning pins are inserted, the U-shaped elastic sheet can be installed between the first tong arm 421 and the second tong arm 422. With the structure, the U-shaped elastic sheet can provide uniform opening force for the first tong arm 421 and the second tong arm 422, so that the needle pulling opening 425 can be in an opening state when not subjected to external extrusion force, and a metal injection head can stretch into or fall off; on the other hand, the structure of U-shaped shell fragment and the installation between first tong arm 421 and second tong arm 422 are all comparatively simple, only need block the U-shaped shell fragment between first tong arm 421 and second tong arm 422 promptly, insert the locating pin again and can accomplish the installation, and is with low costs simultaneously.

The guide part comprises a convex wall 423 and a pulley 424, the convex wall 423 is formed on the first caliper arm 421 or the second caliper arm 422, and the pulley 424 is mounted on the convex wall, so that the guide part and the elastic guide driving part can be conveniently matched and slide under the structure.

The guide block 410 is provided with a groove 416 penetrating through the upper wall, the lower wall and one of the side walls of the guide block 410, the elastic guide driving part 411 is defined on the guide block 410 by the groove 416, and the guide block 410 is arranged in a recessed manner relative to the elastic guide driving part 411 at positions at two ends of the elastic guide driving part 411, so that a first opening station 412 and a second opening station 414 are respectively formed at two ends of the elastic guide driving part 411, and a clamping station 413 is formed on the body of the elastic guide driving part 411. The elastic guide driving part and the guide part are matched in a circulating way as follows: a first opening station 412, a clamping station 413, a second opening station 414, a clamping station 413, a first opening station 412; the state of the needle withdrawal opening 425 is: opening, clamping, opening, clamping and opening to realize the needle pulling operation. The elastic guide driving part 411 is arranged in a manner that one side of the elastic guide driving part 411 is formed on the guide block 410, so that the integrity of the elastic guide driving part 411 on the guide block 410 can be improved, and the toughness of the elastic guide driving part is improved; on the other hand, the elastic guide driving part can deform properly in the process of guiding and driving the guide part so as to match the clamping degree of the needle pulling opening 425 and the friction force between the elastic guide driving part 411 and the guide part, thereby effectively avoiding the overlarge friction force between the guide block 410 and the guide part and shortening the service life of the guide block 410, the guide part and even the whole needle separation mechanism 400.

An adjusting hole 415 communicated with a groove 416 is formed in the side wall of the guide block 410, an adjusting bolt is matched with an inner thread of the adjusting hole 415, the end of the adjusting bolt extends into the groove 416, and when the injection needle is used, the end of the adjusting bolt abuts against the elastic guide driving part 411 to support the elastic guide driving part, so that the injection needle is prevented from being excessively deformed in the sliding fit process with the guide part, and the metal injection head cannot be pulled out of the plastic connecting head of the injection needle; on the other hand, after the elastic guide driving portion is in friction fit with the guiding portion for a long time, the toughness of the elastic guide driving portion and the degree of surface abrasion are different, so that the elastic guide limiting portion can be limited in the degree of deformation by the abutting of the adjusting bolt on the elastic guide driving portion 411, after the adjusting bolt rotates, the adjusting bolt moves axially in the adjusting hole 415 to adjust the supporting height of the elastic guide driving portion 411, and the service life of the guide block 410 is prolonged.

The driving assembly comprises a motor 437, a driving plate 436, a driving rod assembly and a guide frame 433;

the motor 437 is fixedly installed in the installation cavity, that is, the body of the motor 437 is installed in the rear installation cavity 110, the output shaft of the motor 437 passes through the partition plate and is located in the upper installation cavity 130, and meanwhile, a power supply 440 is also arranged in the rear installation cavity 110 and is connected with the motor 437 for supplying power;

the driving plate 436 is provided with an eccentric hole and is circumferentially limited and connected to an output shaft of the motor 437 through the eccentric hole and by using a key slot matching structure;

the driving rod assembly is respectively connected with the driving plate 436 and the needle drawing forceps 420, and the driving rod assembly is provided with a guide rail 432;

the guide frame 433 is provided with a guide groove matched with the guide rail 432.

After the motor 437 is started, the driving plate 436 is driven to rotate, the needle pulling clamp 420 is driven to reciprocate through the driving rod assembly, and in the moving process, the guide frame 433 is matched with the guide rail 432 to form guide, so that the moving stability of the needle pulling clamp 420 is improved.

The drive rod assembly further comprises a first pin 438, a second pin 439, a linkage bar 435, a linkage tube 434 and a fixed plate 431;

the first pin 438 is inserted into a connecting hole formed in the drive plate 436;

the second pin 439 is inserted into the connecting hole formed in the guide rail 432

A first connecting sleeve 4351 is formed at the first end of the linkage rod 435 and sleeved on the first pin rod 438 through the first connecting sleeve 4351;

a second connecting sleeve is formed on the first end of the linkage pipe 434, and is sleeved on the second pin 439 through the second connecting sleeve.

A second end of linkage bar 435 extends into linkage tube 434, and linkage bar 435 is disposed in threaded engagement with linkage tube 434;

the fixing plate 431 is connected to the needle extracting forceps 420, that is, a hinge pin for hinge-connecting the first forceps arm 421 and the second forceps arm 422 passes through the fixing plate 431 to be connected, and the guide rail 432 is mounted on the fixing plate 431 by a bolt.

The first connecting sleeve 4351 can rotate relative to the first pin 438, and the second connecting sleeve can rotate relative to the second pin 439, so that the motor 437 can effectively drive the needle forceps 420 to reciprocate; on the other hand, the distance between the driving plate 436 and the needle pulling forceps 420 can be adjusted by the thread matching arrangement of the linkage rod 435 and the linkage pipe 434, so that the use flexibility and the needle pulling effect are remarkably improved.

The embodiment is further configured as follows: the collection container 300 is a disposable drawer box. The disposable drawer box is used, and the safety of the collected waste metal injection heads is obviously improved.

The disposable drawer box includes a box body 310 and a box cover 320; one side of the cover 320 is formed on the opening of the case body 310 by a thin sheet 330 and is rotatably disposed with respect to the case body 310; a locking structure is arranged between the other side of the box cover 320 and the inner wall of the box body 310. With the structure, after the box cover 320 is covered on the box body 310, the box cover 320 can not be normally opened and can only be destructively opened, thereby avoiding the problem of damage caused by the loss of the metal injection head collected in the disposable drawer box.

The locking structure comprises a locking hook 331 and a locking notch 332, after the box cover 320 is closed, the locking hook 331 is locked in the locking notch 332, and the box cover is embedded in the opening of the box body 310. Under this structure, after the lid closes, latch hook and fore shaft locking, simultaneously because the lid gomphosis is in the opening of box body 310, consequently there is not the application of force point on the lid to pull open the lid to play the dead effect of lock.

A blocking wall 321 is formed at the edge of the box cover 320, and the blocking wall 321 can increase the sealing degree of the disposable drawer box in a closed state and enhance the locking effect.

The side wall of the box body 310 is formed with a pulling plate 340, the pulling plate 340 is isolated from the side wall of the box body 310 to form a pulling groove 341, and the disposable drawer box can be conveniently pulled out from the front installation cavity through the pulling groove 341.

The embodiment is further configured as follows: be provided with on the top of casing 100 and show mouth 140, it is used for the installation to show mouth 140 the utility model discloses a control circuit to and control circuit's display gomphosis is on showing mouth 140, in order to make things convenient for medical personnel's observation, control circuit has material net connection function, can be connected with fixed terminal or handheld terminal, in order to carry out corresponding remote control, management.

In summary, the following steps:

inserting the syringe needle into the insertion opening 230, pushing the movable switch plate 210 to move while inserting, so that the movable switch plate 210 pushes the contact of the travel switch 220 to be closed, starting the motor 437 to drive the needle pulling clamp 420 to reciprocate for a period, namely, the metal injection head enters the needle pulling opening 425 in an unfolded state, pulling the needle pulling clamp 420 by the driving assembly through the clamping station 413 to clamp the needle pulling opening 425 and pull the metal injection head to separate the metal injection head from the plastic connector, continuing to drive the needle pulling clamp 420 to move, matching the guide part to the second opening station 414, opening the needle pulling opening 425, naturally dropping the separated metal injection head, falling into a disposable drawer box for collection, namely, a dropping opening is arranged on the partition plate between the front mounting cavity and the upper mounting cavity, resetting the needle pulling clamp 420 by the driving assembly to match the guide part to the first opening station 412, the needle can be pulled out circularly, so that the medical staff can separate the metal injection head of the syringe needle conveniently, and the safety during separation can be improved.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A contact pin gang switch for a needle automatic separator is characterized in that: the contact pin linkage switch comprises a shell, a movable switch plate and a travel switch;

the side wall of the shell is provided with a mounting opening;

2. The needle insertion gang switch for an automatic needle separator of claim 1, wherein: contact pin linked switch still includes the elasticity piece that resets, the one end that the elasticity resets supports and leans on in the movable switch board, and the other end supports and leans on in the installation cavity of casing to give the movable switch board the outside driving force that removes of casing installation cavity.

3. The needle insertion gang switch for an automatic needle separator of claim 1, wherein: the needle inserting port comprises a large needle port and a small needle port.

4. The needle insertion gang switch for an automatic needle separator of claim 1, wherein: a thickened area is formed on one side, back to the casing installation groove, of the movable switch board, and the pin port is located in the thickened area.