CN214705802U

CN214705802U - Blood pump case magnetic induction switch mechanism

Info

Publication number: CN214705802U
Application number: CN202120945935.2U
Authority: CN
Inventors: 张正明
Original assignee: Qingdao Damingzhou Precision Engineering Technology Co ltd
Current assignee: Qingdao Damingzhou Precision Engineering Technology Co ltd
Priority date: 2021-05-06
Filing date: 2021-05-06
Publication date: 2021-11-12
Anticipated expiration: 2031-05-06

Abstract

The utility model discloses a blood pump casing magnetic induction switch mechanism, which comprises a pump casing and a pump casing cover, wherein the top of the pump casing cover is provided with a fixed groove, the inside of the fixed groove is provided with a magnet, the top of the magnet is provided with an extrusion block, one side of the extrusion block, which is far away from the magnet, is provided with a spring, one end of the spring, which is far away from the magnet, is provided with a protective cover, the pump casing is provided with a fixed structure, the fixed structure comprises a fixed block and a stable block, one side of the fixed block is provided with a groove, the inside of the groove is provided with an L-shaped block, the L-shaped block is provided with a magnetic induction switch, one side of the fixed structure is provided with a protective cover, the utility model effectively reduces mechanical transmission parts, improves the reliability, improves the sealing effect, prevents liquid or other dust from entering the inside of the pump casing, causing a circuit failure.

Description

Blood pump case magnetic induction switch mechanism

Technical Field

The utility model relates to a blood pump technical field specifically is a blood pump case magnetic induction on-off mechanism.

Background

The originally designed pump shell cover closing confirmation switch adopts a mechanical microswitch. The micro-switch has the defects of relatively complex structure and poor tightness, and after long-term use, mechanical abrasion exists, the micro-switch has clamping stagnation faults, and mechanical faults are caused. The micro switch needs a mechanical transmission part to complete the action, so the sealing effect is poor, and liquid or other dust enters the interior of the pump shell to cause circuit failure. In view of the related technical problems, no effective solution has been proposed at present.

SUMMERY OF THE UTILITY MODEL

To the problem in the correlation technique, the utility model provides a blood pump case magnetic induction on-off mechanism to overcome the above-mentioned technical problem that current correlation technique exists, the utility model discloses a magnet through magnetic induction on the pump case switch and pump case lid cooperatees, has effectively reduced mechanical transmission part, has improved the reliability, improves airtight effect, prevents inside liquid or other dust entering pump case, causes circuit fault.

In order to achieve the above object, the utility model provides a following technical scheme: a magnetic induction switch mechanism of a blood pump shell comprises a pump shell and a pump shell cover, wherein the pump shell and the pump shell cover are movably connected through a shaft pin, a fixed groove is formed in the top of the pump shell cover, a magnet is arranged inside the fixed groove, an extrusion block is arranged on the top of the magnet, a spring is arranged on one side, away from the magnet, of the extrusion block, a protective cover is arranged at one end, away from the magnet, of the spring, the protective cover is fixedly installed on the pump shell cover through screws, a fixed structure is arranged on the pump shell and comprises a fixed block and a stable block, a groove is formed in one side of the fixed block, an L-shaped stop block is arranged inside the groove, a magnetic induction switch is arranged on the L-shaped stop block, the stable block is arranged on one side of the magnetic induction switch, one end of the stable block is connected with the L-shaped stop block, and the other end of the stable block is connected with the fixed block, the utility model discloses a pump casing, including pump casing, stabilizing block, fixed knot, fixed block and pump casing, the stabilizing block sets up to L type structure, one side of fixed knot constructs is provided with the protective cover, fixed block and pump casing structure as an organic whole, be provided with the through-hole on the protective cover, be provided with the bolt on the through-hole, the top one end of pump casing is provided with circular recess, the inside of circular recess is provided with sealed the pad, top one side of pump casing is provided with the fixture block, fixture block and pump casing structure as an organic whole, pump casing cover last seted up with fixture block assorted draw-in groove.

Preferably, the stabilizing block and the protective cover are of an integrated structure

Preferably, the outer surfaces of the pump housing cover and the pump housing are coated with an anti-corrosion layer.

Preferably, the bolt runs through the through hole and extends to the inside of fixed block, realizes that protective cover and fixed block are fixed.

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

(1) the utility model relates to a blood pump case magnetic induction switch mechanism, which comprises a magnet extrusion block which is placed in the fixed groove extrusion block of a pump case cover extrusion block, the outer surface of the magnet extrusion block is tightly attached to the inner wall of the fixed groove extrusion block, one end of the extrusion block, which is far away from the spring extrusion block, is abutted against the top of the magnet extrusion block, one end of the spring extrusion block is fixedly connected with the extrusion block, the other end of the spring extrusion block is fixedly connected with the protection cover extrusion block, the protection cover extrusion block is fixedly arranged on the pump case cover extrusion block through screws, the magnet extrusion block is effectively protected, magnetic scraps are prevented from being adsorbed on the surface of the magnet extrusion block, so that the magnetism is influenced along with the increase of service time, the extrusion block is driven by the elastic acting force of the spring extrusion block to extrude the magnet extrusion block, the installation and the disassembly are convenient;

(2) the utility model relates to a blood pump case magnetic induction switch mechanism, through placing L type dog extrusion piece inside recess extrusion piece, place L type dog extrusion piece again on L type dog extrusion piece, L type dog extrusion piece plays the effect of fixed magnetic induction switch extrusion piece, liquid gets into in the pump case when magnetic induction switch extrusion piece effectively prevents the weeping, cause circuit fault, magnetic induction switch extrusion piece adopts hidden, stable piece extrusion piece effectively plays stable effect to fixed magnetic induction switch extrusion piece, prevent that magnetic induction switch extrusion piece from appearing not hard up phenomenon when using;

(3) the utility model relates to a blood pump case magnetic induction switch mechanism, run through the through-hole through the bolt and extend to the inside of fixed block extrusion piece, realize that protective cover extrusion piece and fixed block extrusion piece are fixed, prevent the phenomenon that protective cover extrusion piece dropped, protective cover extrusion piece can be better protects magnetic induction switch extrusion piece, pump case lid extrusion piece is when being connected with pump case extrusion piece, the outer wall of pump case lid extrusion piece is laminated with the inner wall of circular recess extrusion piece, sealed pad plays sealed effect, prevent that outside impurity from getting into the inside of pump case extrusion piece from the junction of pump case lid extrusion piece and pump case extrusion piece, the fixture block extrusion piece on the pump case extrusion piece can block in the inside of draw-in groove extrusion piece on pump case lid extrusion piece;

(4) the utility model relates to a blood pump case magnetic induction switch mechanism cooperatees through the magnet extrusion piece that magnetic induction switch extrusion piece on the pump case and pump case lid, has effectively reduced mechanical transmission part, has improved the reliability, improves airtight effect, prevents inside liquid or other dust entering pump case, causes circuit fault.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic side view of the cross-sectional structure of the present invention.

In the reference symbols: 1. a pump housing; 2. a pump housing cover; 3. a shaft pin; 4. a magnet; 5. a fixed structure; 501. a fixed block; 502. a stabilizing block; 503. a groove; 504. an L-shaped stop block; 6. a magnetic induction switch; 7. a protective cover; 8. a circular groove; 9. a clamping block; 10. a card slot; 11. an anti-corrosion layer; 12. fixing grooves; 13. extruding the block; 14. a spring; 15. a protective cover.

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 efforts belong to the protection scope of the present invention.

Examples

Referring to fig. 1-2, the present invention provides a technical solution of a magnetic induction switch mechanism of a blood pump casing: a magnetic induction switch mechanism of a blood pump casing comprises a pump casing 1 and a pump casing cover 2, wherein the pump casing 1 and the pump casing cover 2 are movably connected through a shaft pin 3, concretely, the pump casing 1 and the pump casing cover 2 are fixed through threads and can effectively improve the activity, a fixed groove 12 is formed in the top of the pump casing cover 2, a magnet 4 is arranged inside the fixed groove 12, an extrusion block 13 is arranged at the top of the magnet 4, a spring 14 is arranged on one side, away from the magnet 4, of the extrusion block 13, a protective cover 15 is arranged at one end, away from the magnet 4, of the spring 14, the protective cover 15 is fixedly installed on the pump casing cover 2 through screws, concretely, the magnet 4 is placed inside the fixed groove 12 of the pump casing cover 2, the diameter of the magnet 4 is smaller than the inside diameter of the fixed groove 12, the outer surface of the magnet 4 is tightly attached to the inner wall of the fixed groove 12, one end, away from the spring 14, of the extrusion block 13 is abutted to the top of the magnet 4, one end of the spring 14 is fixedly connected with the extrusion block 13, the other end of the spring 14 is fixedly connected with the protective cover 15, the protective cover 15 is fixedly installed on the pump shell cover 2 through a screw, the magnet 4 is effectively protected, magnetic scraps are prevented from being adsorbed on the surface of the magnet 4, and the magnetism is influenced along with the increase of the service life, the extrusion block 13 is driven by the elastic acting force of the spring 14 to extrude the magnet 4, the installation and the disassembly are convenient, the pump shell 1 is provided with the fixed structure 5, the fixed structure 5 comprises a fixed block 501 and a stable block 502, one side of the fixed block 501 is provided with a groove 503, an L-shaped block 504 is arranged inside the groove 503, the L-shaped block 504 is provided with a magnetic induction switch 6, the magnetic induction switch 6 effectively prevents liquid from entering the pump shell during liquid leakage to cause circuit faults, the magnetic induction switch 6 is hidden, the stable block 502 is arranged on one side of the magnetic induction switch 6, one end of the stable block 502 is connected with the L-shaped block 504, the other end of the stabilizing block 502 is connected with the fixing block 501, the stabilizing block 502 is set to be of an L-shaped structure, specifically, the L-shaped block 504 is placed inside the groove 503, then the magnetic induction switch 6 is placed on the L-shaped block 504, the L-shaped block 504 plays a role in fixing the magnetic induction switch 6, the stabilizing block 502 effectively plays a role in stabilizing the fixed magnetic induction switch 6 and preventing the magnetic induction switch 6 from loosening in use, a protective cover 7 is arranged on one side of the fixing structure 5, the fixing block 501 and the pump shell 1 are of an integrated structure, a through hole is formed in the protective cover 7, a bolt is arranged on the through hole, specifically, the protective cover 7 plays a role in protecting the magnetic induction switch 6, the stabilizing block 502 and the protective cover 7 are of an integrated structure, the protective cover 7 effectively prevents external impurities from entering the inside the groove 503, and accordingly the working efficiency of the magnetic induction switch 6 is influenced, top one end of pump case 1 is provided with circular recess 8, the inside of circular recess 8 is provided with sealed the pad, it is specific, circular recess 8 sets up to convex structure, pump case lid 2 also sets up to convex structure, pump case lid 2 is when being connected with pump case 1, the outer wall of pump case lid 2 is laminated mutually with circular recess 8's inner wall, sealed pad plays sealed effect, prevent that outside impurity from entering into the inside of pump case 1 from the junction of pump case lid 2 with pump case 1, top one side of pump case 1 is provided with fixture block 9, fixture block 9 and pump case 1 structure as an organic whole, pump case lid 2 is last seted up with fixture block 9 assorted draw-in groove 10, it is specific, fixture block 9 can block in the inside of draw-in groove 10.

Wherein, stabilizing block 502 and protective cover 7 are the integral structure, and is concrete, and stabilizing block 502's inner wall and magnetic induction switch 6's outer wall closely laminate, and protective cover 7 and stabilizing block 502 can prevent effectively that magnetic induction switch 6 from appearing not hard up phenomenon.

The outer surfaces of the pump shell cover 2 and the pump shell 1 are coated with the anti-corrosion layers 11, and particularly, the anti-corrosion performance of the pump shell cover 2 and the pump shell 1 can be effectively improved.

Wherein, the bolt runs through the through-hole and extends to the inside of fixed block 501, realizes that protective cover 7 and fixed block 501 are fixed, and is concrete, prevents the phenomenon that protective cover 7 dropped, and protective cover 7 can be better protects magnetic induction switch 6.

Specifically, the utility model discloses a theory of operation and use flow: magnet 4 is placed in a fixed groove 12 of a pump shell cover 2, the outer surface of the magnet 4 is tightly attached to the inner wall of the fixed groove 12, one end, far away from a spring 14, of an extrusion block 13 is abutted to the top of the magnet 4, one end of the spring 14 is fixedly connected with the extrusion block 13, the other end of the spring 14 is fixedly connected with a protective cover 15, the protective cover 15 is fixedly installed on the pump shell cover 2 through screws, the magnet 4 is effectively protected, magnetic scraps are prevented from being adsorbed on the surface of the magnet 4, the magnetism is prevented from being influenced along with the increase of the service time, the extrusion block 13 is driven to extrude the magnet 4 by the elastic acting force of the spring 14, the installation and the disassembly are convenient, an L-shaped block 504 is placed in a groove 503, then a magnetic induction switch 6 is placed on the L-shaped block 504, the L-shaped block 504 plays a role in fixing the magnetic induction switch 6, and liquid is effectively prevented from entering the pump shell when the magnetic induction switch 6 leaks, the induction switch 6 is hidden, the stabilizing block 502 effectively plays a stabilizing role in fixing the magnetic induction switch 6, the phenomenon that the magnetic induction switch 6 is loosened when in use is prevented, the bolt penetrates through the through hole and extends into the fixing block 501, the fixing of the protecting cover 7 and the fixing block 501 is realized, the phenomenon that the protecting cover 7 drops is prevented, the protecting cover 7 can better protect the magnetic induction switch 6, when the pump shell cover 2 is connected with the pump shell 1, the outer wall of the pump shell cover 2 is attached to the inner wall of the circular groove 8, the sealing gasket plays a sealing role, external impurities are prevented from entering the interior of the pump shell 1 from the joint of the pump shell cover 2 and the pump shell 1, a clamping block 9 on the pump shell 1 can be clamped inside a clamping groove 10 on the pump shell cover 2, the magnetic induction switch 6 on the pump shell is matched with a magnet 4 on the pump shell cover, and mechanical transmission parts are effectively reduced, the reliability is improved, the sealing effect is improved, and liquid or other dust is prevented from entering the interior of the pump shell to cause circuit faults.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

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. A magnetic induction switch mechanism of a blood pump casing comprises a pump casing (1) and a pump casing cover (2), and is characterized in that the pump casing (1) and the pump casing cover (2) are movably connected through a shaft pin (3), a fixing groove (12) is formed in the top of the pump casing cover (2), a magnet (4) is arranged inside the fixing groove (12), an extrusion block (13) is arranged on the top of the magnet (4), a spring (14) is arranged on one side, away from the magnet (4), of the extrusion block (13), a protective cover (15) is arranged at one end, away from the magnet (4), of the spring (14), the protective cover (15) is fixedly installed on the pump casing cover (2) through screws, a fixing structure (5) is arranged on the pump casing (1), the fixing structure (5) comprises a fixing block (501) and a stabilizing block (502), a groove (503) is formed in one side of the fixing block (501), the inside of recess (503) is provided with L type dog (504), be provided with magnetic induction switch (6) on L type dog (504), steady piece (502) set up the one side at magnetic induction switch (6), the one end of steady piece (502) is connected with L type dog (504), the other end of steady piece (502) is connected with fixed block (501), steady piece (502) sets up to L type structure, one side of fixed knot constructs (5) is provided with protective cover (7), fixed block (501) and pump case (1) are the integral structure, be provided with the through-hole on protective cover (7), be provided with the bolt on the through-hole, the top one end of pump case (1) is provided with circular recess (8), the inside of circular recess (8) is provided with sealed the pad, top one side of pump case (1) is provided with fixture block (9), the clamping block (9) and the pump shell (1) are of an integrated structure, and a clamping groove (10) matched with the clamping block (9) is formed in the pump shell cover (2).

2. The magnetic induction switch mechanism of the pump shell of the blood pump as claimed in claim 1, wherein: the stabilizing block (502) and the protective cover (7) are of an integrated structure.

3. The magnetic induction switch mechanism of the pump shell of the blood pump as claimed in claim 1, wherein: and the outer surfaces of the pump shell cover (2) and the pump shell (1) are coated with anti-corrosion layers (11).

4. The magnetic induction switch mechanism of the pump shell of the blood pump as claimed in claim 1, wherein: the bolt runs through the through hole and extends to the inside of fixed block (501), realizes that protective cover (7) and fixed block (501) are fixed.