CN215057962U

CN215057962U - Injection pump with anti-overload function

Info

Publication number: CN215057962U
Application number: CN202121305265.4U
Authority: CN
Inventors: 岳红莲
Original assignee: Baoding Dichuang Electronic Technology Co ltd
Current assignee: Baoding Dichuang Electronic Technology Co ltd
Priority date: 2021-06-10
Filing date: 2021-06-10
Publication date: 2021-12-07
Anticipated expiration: 2031-06-10

Abstract

The utility model discloses an injection pump with anti overload function, the inside of sliding block is provided with electric telescopic handle, and electric telescopic handle's top is provided with the forced induction piece, and the one end of slide bar sets up in the outside of groove section of thick bamboo, and the other end of groove section of thick bamboo is provided with the slide, and the slide setting is provided with the spring with the inside of groove section of thick bamboo, and the inside of groove section of thick bamboo is provided with. The utility model discloses syringe pump with anti overload function, electric telescopic handle is in lock-out state under normal operating conditions, when the pressure that receives at the forced induction piece reaches the setting value, electric telescopic handle removes the locking, inside the butt board is along with electric telescopic handle retraction sliding block, when the butt board contacts the knob, response module sends a signal for control module, control module control step motor stop work, the setting up of slide bar and spring makes and to provide certain buffering in step motor stop work, thereby prevent that the syringe pump from overloading and exerting pressure influence and even lead to the condition of the damage of syringe pump internals to take place.

Description

Injection pump with anti-overload function

Technical Field

The utility model relates to an injection pump technical field specifically is an injection pump with anti overload function.

Background

The syringe pump is also called a screw pump because it is composed of a stepping motor and its driver, a screw, a holder, and the like, and has a screw and a nut that reciprocate. The nut is connected with the piston of the injector, and the injector is used for containing liquid medicine, so that high-precision and stable non-pulsating liquid transmission is realized. Can be divided into medical and non-medical according to the usage, and laboratory micro-injection pump and industrial injection pump, can be divided into single channel and multichannel (binary channels, four channels, six channels, eight channels, ten channels, etc.) according to the number of channels, can be divided into single push and push-pull and two-way push and pull modes according to the working mode, can be divided into split type and combined type according to the structure, etc. Under the normal condition, the lead screw can drive the slider of being connected with it transmission when by motor drive and remove along the axial direction of lead screw, lead screw self is only radial rotation and does not produce axial displacement, when the slider of syringe pump meets and hinders no longer when moving forward, the syringe pump takes place to transship promptly, if the motor continues the drive this moment, then the lead screw will be compelled to produce axial displacement, thereby can exert pressure and can influence the damage that leads to syringe pump internal element even, to these defects, design a syringe pump with anti overload function, it is very necessary.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an injection pump with anti overload function has anti overloaded advantage, can solve the problem among the prior art.

In order to achieve the above object, the utility model provides a following technical scheme: an injection pump with an overload resistance function comprises a device main body, a fixed block, a sliding block, an injector embedding block and an injector, wherein the fixed block and the injector embedding block are respectively arranged on two sides of the top of the device main body;

the syringe embedding block is provided with an embedding groove, a syringe is placed in the embedding groove, one side of the embedding groove is provided with a fixing button, a fixing buckle is arranged below the fixing button, the fixing buckle is arranged above the syringe, the needle end of the syringe faces the outer side of the device main body, and the pushing end of the syringe is abutted against the sliding block;

one side of the sliding block, which is close to the syringe embedding block, is provided with a butting groove, a butting plate is arranged inside the butting groove, the pushing end of the syringe is butted on the butting plate, an electric telescopic rod is arranged inside the sliding block, the top end of the electric telescopic rod is provided with a pressure sensing piece, the pressure sensing piece is connected with the butting plate, groove cylinders are arranged on two sides of the electric telescopic rod, a sliding rod is arranged inside the groove cylinders in a sliding manner, one end of the sliding rod is arranged outside the groove cylinders, the other end of the groove cylinders is provided with a sliding plate, the sliding plate is arranged inside the groove cylinders, a spring is arranged inside the groove cylinders, one end of the spring is fixedly connected to the groove cylinders, the other end of the spring is fixedly connected to the sliding plate, and one end, which is far away from the sliding plate, of the sliding rod is provided with a sensing button;

the device is characterized in that a single chip microcomputer and a stepping motor are arranged in the device body, the stepping motor is connected with a transmission screw rod, the single chip microcomputer and the stepping motor are electrically connected, a control module and an induction module are arranged in the single chip microcomputer, the stepping motor is electrically connected with the control module, an induction button is electrically connected with the induction module, and the output end of the induction module is electrically connected with the input end of the control module.

Preferably, the pressure sensing piece is electrically connected with the electric telescopic rod.

Preferably, the induction button is arranged on one side of the abutting plate, which is far away from the injector.

Preferably, a touch screen is arranged on the front surface of the device main body.

Preferably, the outer diameter of the side of the abutting plate far away from the injector is larger than the minimum inner diameter of the abutting groove.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. this syringe pump with anti overload function, the inside of sliding block is provided with electric telescopic handle, electric telescopic handle's top is provided with the forced induction piece, electric telescopic handle is in the locking state under normal operating conditions, when the pressure that the forced induction piece received reached the setting value, electric telescopic handle removed the locking, along with the removal of sliding block, inside the butt board was along with electric telescopic handle retraction sliding block, when the butt board contacted the response button, response module send signal was for control module, control module control step motor stop work, prevent to transship.

2. This syringe pump with anti overload function, the one end of slide bar sets up in the outside of groove section of thick bamboo, and the other end of groove section of thick bamboo is provided with the slide, the slide setting with the inside of groove section of thick bamboo, the inside of groove section of thick bamboo is provided with the spring, thereby the setting up of slide bar and spring makes and can provide certain buffering when step motor stop work, thereby the syringe pump overload condition emergence that exerts pressure influence and lead to the damage of syringe pump internals even prevents to appear.

Drawings

Fig. 1 is a front view schematically illustrating the present invention;

fig. 2 is a schematic top view of the present invention;

fig. 3 is a schematic side view of the present invention;

FIG. 4 is a schematic view of the internal structure of the sliding block of the present invention;

fig. 5 is a schematic block diagram of the present invention.

In the figure: 1. a device main body; 2. a touch screen; 3. a fixed block; 4. a slider; 5. an injector insert; 6. a fixing button; 7. a first guide bar; 8. a second guide bar; 9. a transmission screw rod; 10. a fixing buckle; 11. a groove is embedded; 12. a butt joint groove; 13. a butt joint plate; 14. an electric telescopic rod; 15. a pressure sensing sheet; 16. a grooved drum; 17. a slide bar; 18. a slide plate; 19. a spring; 20. an induction button; 21. a single chip microcomputer; 22. a stepping motor; 23. a control module; 24. a sensing module; 25. a syringe.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 5, an injection pump with an overload prevention function includes a device body 1, a fixed block 3, a sliding block 4, an injector embedding block 5 and an injector 25, a touch screen 2 is disposed on a front surface of the device body 1, the fixed block 3 and the injector embedding block 5 are respectively disposed on two sides of a top of the device body 1, a first guide bar 7, a second guide bar 8 and a transmission screw 9 are disposed between the fixed block 3 and the injector embedding block 5, the first guide bar 7, the second guide bar 8 and the transmission screw 9 are parallel to each other and horizontally disposed, two ends of the first guide bar 7 and the second guide bar 8 are fixedly connected to the fixed block 3 and the injector embedding block 5, two ends of the transmission screw 9 are rotatably connected to the fixed block 3 and the injector embedding block 5, the sliding block 4 is disposed between the fixed block 3 and the injector embedding block 5, the sliding block 4 is slidably connected to the first guide bar 7, A transmission screw rod 9 penetrates through the middle part of the sliding block 4 on the second guide rod 8;

the syringe embedding block 5 is provided with an embedding groove 11, a syringe 25 is placed in the embedding groove 11, one side of the embedding groove 11 is provided with a fixing button 6, a fixing buckle 10 is arranged below the fixing button 6, the fixing buckle 10 is arranged above the syringe 25, the needle end of the syringe 25 faces the outer side of the device main body 1, and the pushing end of the syringe 25 is abutted against the sliding block 4;

one side of the sliding block 4 close to the injector embedding block 5 is provided with a butting groove 12, a butting plate 13 is arranged inside the butting groove 12, the outer diameter of one side of the butting plate 13 far away from the injector 25 is larger than the minimum inner diameter of the butting groove 12, the pushing end of the injector 25 is butted on the butting plate 13, an electric telescopic rod 14 is arranged inside the sliding block 4, the top end of the electric telescopic rod 14 is provided with a pressure sensing piece 15, the pressure sensing piece 15 is electrically connected with the electric telescopic rod 14, the pressure sensing piece 15 is connected with the butting plate 13, two sides of the electric telescopic rod 14 are provided with groove barrels 16, a sliding rod 17 is arranged inside the groove barrels 16 in a sliding manner, one end of the sliding rod 17 is arranged outside the groove barrels 16, the other end of the groove barrels 16 is provided with a sliding plate 18, the sliding plate 18 is arranged inside the groove barrels 16, a spring 19 is arranged inside the groove barrels 16, one end of the spring 19 is fixedly connected on the groove barrels 16, the other end of the spring 19 is fixedly connected on the sliding plate 18, the end of the sliding rod 17 far away from the sliding plate 18 is provided with a sensing button 20, and the sensing button 20 is arranged on one side of the abutting plate 13 far away from the injector 25;

the device main body 1 is internally provided with a singlechip 21 and a stepping motor 22, the stepping motor 22 is connected with a transmission screw rod 9, the singlechip 21 is electrically connected with the stepping motor 22, the singlechip 21 is internally provided with a control module 23 and an induction module 24, the control module 23 is electrically connected with the stepping motor 22, the induction module 24 is electrically connected with an induction button 20, the output end of the induction module 24 is electrically connected with the input end of the control module 23, the electric telescopic rod 14 is in a locking state under the normal working condition, when the pressure received by a pressure induction sheet 15 reaches a set value, the electric telescopic rod 14 is unlocked, along with the movement of the sliding block 4, the butt plate 13 retracts into the sliding block 4 along with the electric telescopic rod 14, when the butt plate 13 is contacted with the induction button 20, the induction module 24 sends a signal to the control module 23, the control module 23 controls the stepping motor 22 to stop working, and the arrangement of the sliding rod 17 and the spring 19 enables a certain buffer to be provided while the stepping motor 22 stops working, preventing the occurrence of situations where the syringe pump applies pressure in an overload manner, thereby affecting or even causing damage to the internal components of the syringe pump.

In summary, in the injection pump with the overload protection function, the electric telescopic rod 14 is in a locked state under normal operation, when the pressure received by the pressure sensing piece 15 reaches a set value, the electric telescopic rod 14 is unlocked, the abutting plate 13 retracts into the sliding block 4 along with the electric telescopic rod 14 along with the movement of the sliding block 4, when the abutting plate 13 contacts the sensing button 20, the sensing module 24 sends a signal to the control module 23, the control module 23 controls the stepping motor 22 to stop operating, and the arrangement of the sliding rod 17 and the spring 19 enables a certain buffer to be provided while the stepping motor 22 stops operating, so as to prevent the occurrence of the situation that the injection pump applies excessive pressure to influence and even damage internal elements of the injection pump.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a syringe pump with anti overload function, includes device main part (1), fixed block (3), sliding block (4), syringe embedding block (5) and syringe (25), its characterized in that: the two sides of the top of the device main body (1) are respectively provided with a fixed block (3) and an injector embedding block (5), a first guide rod (7), a second guide rod (8), a transmission screw rod (9) and the first guide rod (7) are arranged between the fixed block (3) and the injector embedding block (5), the second guide rod (8) and the transmission screw rod (9) are parallel to each other and horizontally arranged, two ends of the first guide rod (7) and the second guide rod (8) are fixedly connected to the fixed block (3) and the injector embedding block (5), two ends of the transmission screw rod (9) are rotatably connected to the fixed block (3) and the injector embedding block (5), a sliding block (4) is arranged between the fixed block (3) and the injector embedding block (5), the sliding block (4) is slidably connected to the first guide rod (7) and the second guide rod (8), and the transmission screw rod (9) penetrates through the middle of the sliding block (4);

the injection device is characterized in that an embedded groove (11) is formed in the injector embedded block (5), an injector (25) is placed in the embedded groove (11), a fixing button (6) is arranged on one side of the embedded groove (11), a fixing buckle (10) is arranged below the fixing button (6), the fixing buckle (10) is arranged above the injector (25), the needle end of the injector (25) faces the outer side of the device main body (1), and the pushing end of the injector (25) is abutted against the sliding block (4);

one side of the sliding block (4) close to the injector embedding block (5) is provided with a butt joint groove (12), a butt joint plate (13) is arranged inside the butt joint groove (12), the pushing end of the injector (25) is in butt joint with the butt joint plate (13), an electric telescopic rod (14) is arranged inside the sliding block (4), the top end of the electric telescopic rod (14) is provided with a pressure induction sheet (15), the pressure induction sheet (15) is connected with the butt joint plate (13), two sides of the electric telescopic rod (14) are provided with groove barrels (16), a sliding rod (17) is arranged inside the groove barrels (16) in a sliding manner, one end of the sliding rod (17) is arranged outside the groove barrels (16), the other end of the groove barrels (16) is provided with a sliding plate (18), the sliding plate (18) is arranged inside the groove barrels (16), springs (19) are arranged inside the groove barrels (16), and one ends of the springs (19) are fixedly connected to the groove barrels (16), the other end of the spring (19) is fixedly connected to the sliding plate (18), and one end of the sliding rod (17) far away from the sliding plate (18) is provided with an induction button (20);

the device is characterized in that a single chip microcomputer (21) and a stepping motor (22) are arranged inside the device body (1), the stepping motor (22) is connected with the transmission screw rod (9), the single chip microcomputer (21) and the stepping motor (22) are electrically connected, a control module (23) and an induction module (24) are arranged inside the single chip microcomputer (21), the stepping motor (22) is electrically connected with the control module (23), the induction button (20) is electrically connected with the induction module (24), and the output end of the induction module (24) is electrically connected with the input end of the control module (23).

2. The syringe pump with overload prevention function according to claim 1, wherein: the pressure sensing sheet (15) is electrically connected with the electric telescopic rod (14).

3. The syringe pump with overload prevention function according to claim 2, wherein: the induction button (20) is arranged on one side, away from the injector (25), of the abutting plate (13).

4. A syringe pump with an anti-overload function according to claim 3, wherein: the front surface of the device main body (1) is provided with a touch screen (2).

5. The syringe pump with anti-overload function according to claim 4, wherein: the outer diameter of one side of the abutting plate (13) far away from the injector (25) is larger than the minimum inner diameter of the abutting groove (12).