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CN111803759B - Constant temperature heating infusion perfusion treatment pump - Google Patents

Constant temperature heating infusion perfusion treatment pump Download PDF

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Publication number
CN111803759B
CN111803759B CN202010700784.4A CN202010700784A CN111803759B CN 111803759 B CN111803759 B CN 111803759B CN 202010700784 A CN202010700784 A CN 202010700784A CN 111803759 B CN111803759 B CN 111803759B
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CN
China
Prior art keywords
piston
assembly
shell
rod
annular seat
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Expired - Fee Related
Application number
CN202010700784.4A
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Chinese (zh)
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CN111803759A (en
Inventor
张正伟
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Individual
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Individual
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Priority to CN202010700784.4A priority Critical patent/CN111803759B/en
Publication of CN111803759A publication Critical patent/CN111803759A/en
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Publication of CN111803759B publication Critical patent/CN111803759B/en
Expired - Fee Related legal-status Critical Current
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/14Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/1407Infusion of two or more substances
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/14Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/142Pressure infusion, e.g. using pumps
    • A61M5/145Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/14Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/168Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body
    • A61M5/16804Flow controllers
    • A61M5/16827Flow controllers controlling delivery of multiple fluids, e.g. sequencing, mixing or via separate flow-paths
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/14Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/168Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body
    • A61M5/16877Adjusting flow; Devices for setting a flow rate
    • A61M5/16881Regulating valves
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/44Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests having means for cooling or heating the devices or media
    • A61M5/445Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests having means for cooling or heating the devices or media the media being heated in the reservoir, e.g. warming bloodbags

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  • Health & Medical Sciences (AREA)
  • Vascular Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)

Abstract

The invention discloses a constant-temperature heating infusion perfusion treatment pump, which belongs to the field of perfusion treatment pumps, wherein an infusion tube and a blood transfusion tube are respectively connected through a first feed inlet and a second feed inlet, one of the first feed inlet and the second feed inlet is sealed and the other feed inlet is opened by starting a second driving assembly to adjust an inverted V-shaped partition plate, meanwhile, the first driving assembly is adjusted by a second driving assembly to adjust a limit adjusting assembly, the first driving assembly is started to drive a first piston assembly or a second piston assembly to operate for infusion or blood transfusion, the process of conveying is realized through the matching of a first one-way valve assembly and a second one-way valve assembly, the infusion and the blood transfusion are separated by two groups of cavities, the problem of mutual mixing is avoided, and the discomfort is reduced when electric heating is used in winter by starting an electric heating assembly.

Description

Constant temperature heating infusion perfusion treatment pump
Technical Field
The invention relates to a perfusion treatment pump, in particular to a constant-temperature heating infusion perfusion treatment pump, and belongs to the technical field of perfusion treatment pumps.
Background
Venous transfusion is a common administration mode in clinical treatment, according to the nature of medicine, the difference of patient's physique, venous transfusion speed also is different, often can only single carry the very singleness of a kind of infusion of carrying out among the prior art when carrying out the infusion, and carry blood after will filling the treatment pump infusion and often can appear the problem of cross mixing, it is also not convenient when wasing yet, secondly often relatively cold when carrying out the infusion in winter, patient's health also can feel uncomfortable during the infusion, design a constant temperature heating infusion treatment pump for this reason and optimize above-mentioned problem.
Disclosure of Invention
The invention mainly aims to provide a constant-temperature heating infusion perfusion treatment pump, wherein an infusion tube and a blood transfusion tube are respectively connected through a first feeding hole and a second feeding hole, a second driving assembly is started to adjust an inverted V-shaped partition plate to seal one feeding hole of the first feeding hole or the second feeding hole and open the other feeding hole, a limit adjusting assembly is adjusted through the second driving assembly to adjust a first driving assembly, the first driving assembly is started to drive a first piston assembly or a second piston assembly to operate to carry out infusion or blood transfusion, the conveying process is realized through the matching of a first one-way valve assembly and a second one-way valve assembly, two groups of cavities separate infusion from blood transfusion, the mutual mixing problem is avoided, and the electric heating is realized by starting an electric heating assembly to reduce discomfort in winter.
The purpose of the invention can be achieved by adopting the following technical scheme:
constant temperature heating infusion perfusion treatment pump, include the casing and install the first feed inlet and the second feed inlet of casing top both sides, first feed inlet with the inboard of second feed inlet is equipped with first check valve subassembly, the bottom intercommunication of casing has the discharge gate, the inboard of discharge gate is equipped with second check valve subassembly, the inside median septum that is equipped with of casing, this median septum will two sets of cavitys are separated into to the casing, two sets of cavitys respectively with first feed inlet and second feed inlet intercommunication, the limit portion of casing one side be equipped with respectively with first piston chamber and the second piston chamber of two sets of cavitys intercommunication in the casing, first piston chamber and second piston intracavity side are equipped with first piston assembly and second piston assembly respectively, first piston assembly and second piston assembly all drive through a set of first drive assembly, install on the first drive assembly and adjust first drive assembly to the spacing adjustment subassembly of being connected with first piston assembly or second piston assembly, top middle part with first feed inlet and second feed inlet junction install the type of falling V separation board with first feed inlet and second feed inlet separation board the drive assembly is all equipped with the spacing adjustment subassembly in the casing, the top drive assembly is equipped with the spacing adjustment subassembly in the drive of the V.
Preferably, first check valve subassembly includes first check valve, first spacing spring and first annular seat, first annular seat is installed the inboard top of first feed inlet and second feed inlet, the inboard of first annular seat is equipped with first check valve, just first annular seat with install first spacing spring between the first check valve.
Preferably, the second check valve subassembly includes second annular seat, second check valve and second annular seat, the second annular seat is installed bottom in the discharge gate, the inboard of second annular seat is equipped with the second check valve, the second check valve with be equipped with the spacing spring of second between the second annular seat.
Preferably, the electric heating assembly comprises two sets of electric heating plates and a set of electric heater, the two sets of electric heating plates are respectively installed on the two sets of inner walls of the cavity inside the shell, the electric heater is installed on the outer wall of the shell and is electrically connected with the two sets of electric heating plates through a wire, and a PLC (programmable logic controller) is arranged inside a temperature control screen on the electric heater.
Preferably, the first piston assembly comprises a first piston, a first hinge rod, a first disc, a first L-shaped fixing arm, a first connecting rod and a first clamping block, the first L-shaped fixing arm is installed on the outer side of the first piston cavity, the first L-shaped fixing arm is far away from a bearing at one end of the first piston cavity and is provided with the first connecting rod through the bearing, the first disc is installed at one end of the first connecting rod, the first hinge rod is hinged to one side, close to the edge, of the first disc, which is far away from the first connecting rod, the first piston is located on the inner side of the first piston cavity and is hinged to one end, far away from the first disc, of the first hinge rod, and the side, close to the edge, of the first piston cavity, of the first piston is close to the side of the first piston cavity.
Preferably, the second piston assembly includes second L type fixed arm, second disc, second hinge bar, second connecting rod, second fixture block and second piston, the second piston is located the inboard in second piston chamber, the one end of second hinge bar with the second piston is articulated, just the other end of second hinge bar with a side portion of second disc is articulated, the opposite side mid-mounting second connecting rod of second disc, the second fixture block is installed to the other end of second connecting rod, second L type fixed arm is installed in the outside of second connecting rod, just the other end of second L type fixed arm is installed the outer wall in second piston chamber.
Preferably, spacing adjusting part includes spacing slide rail, spacing spring, fixed block and L type dead lever, spacing slide rail is installed first piston chamber with between the second piston intracavity wall, the fixed block is installed at the top of spacing slide rail, spacing spring is installed to one side of fixed block, L type dead lever is installed to the other end of spacing spring, just L type dead lever is located spacing slide rail top can slide on the spacing slide rail.
Preferably, the first driving assembly comprises a second double-head motor, a groove-shaped rotating rod and a groove, the second double-head motor is installed at one end of the L-shaped fixing rod, the groove-shaped rotating rod is installed at two ends of the second double-head motor, and the groove is formed in one end, far away from the second double-head motor, of the groove-shaped rotating rod.
Preferably, the second drive assembly includes first double-headed motor and cam, first double-headed motor is installed casing one side top middle part, an output of first double-headed motor run through the casing with the second piston is fixed, another output of first double-headed motor is installed and is mutually supported with L type dead lever type division board of falling V.
The invention has the beneficial technical effects that:
the constant-temperature heating infusion perfusion treatment pump provided by the invention is characterized in that an infusion tube and a blood transfusion tube are respectively connected with a first feed inlet and a second feed inlet, a second driving assembly is started to adjust an inverted V-shaped partition plate to seal one of the first feed inlet and the second feed inlet and open the other feed inlet, a limit adjusting assembly is adjusted by the second driving assembly to adjust a first driving assembly, the first driving assembly is started to drive a first piston assembly or a second piston assembly to operate so as to carry out infusion or blood transfusion, the conveying process is realized by the matching of a first one-way valve assembly and a second one-way valve assembly, the infusion and the blood transfusion are separated by two groups of cavities, the mutual mixing problem is avoided, and the discomfort is reduced when the electric heating assembly is started to realize electric heating in winter.
Drawings
FIG. 1 is a general side cross-sectional view of a preferred embodiment of a thermostatically-heated infusion therapy pump in accordance with the invention;
FIG. 2 is an overall top cross-sectional view of a preferred embodiment of a thermostatically-heated infusion therapy pump in accordance with the invention;
FIG. 3 is a perspective view of the driving assembly and its separating assembly of a preferred embodiment of the thermostatic heating infusion pump according to the present invention;
FIG. 4 is a schematic perspective view of a housing of a preferred embodiment of a thermostatically heated infusate treatment pump in accordance with the invention;
FIG. 5 is an enlarged view of a preferred embodiment of a thermostatically heated infusion therapy pump in accordance with the invention at point a;
FIG. 6 is an enlarged view of the structure at b of a preferred embodiment of the thermostatically heated infusion therapy pump in accordance with the invention;
fig. 7 is an enlarged view of the structure at c of a preferred embodiment of the thermostatically heated infusion therapy pump in accordance with the invention.
In the figure: 1-inverted V-shaped partition plate, 2-first check valve assembly, 3-housing, 4-electric heater, 5-electric heating plate, 6-L-shaped fixing rod, 7-first piston cavity, 8-first disk, 9-first hinge rod, 10-first piston, 11-first double-head motor, 12-cam, 13-second check valve assembly, 14-second double-head motor, 16-first feed inlet, 17-limit slide rail, 18-second annular seat, 19-second limit spring, 21-second feed inlet, 22-discharge outlet, 23-second piston, 24-second disk, 25-second hinge rod, 26-groove-shaped rotating rod, 27-first check valve, 28-groove, 29-first clamping block, 30-first connecting rod, 31-fixing block, 32-limit spring, 33-second piston cavity, 34-first annular seat, 35-first limit spring, 36-second check valve 37-first L-shaped clamping block, 38-second L-connecting rod, 39-second fixing arm.
Detailed Description
In order to make the technical solutions of the present invention more clear and definite, the present invention is further described in detail below with reference to the examples and the accompanying drawings, but the embodiments of the present invention are not limited thereto.
As shown in fig. 1-7, the constant temperature heating infusion perfusion therapy pump provided in this embodiment includes a housing 3, and a first inlet 16 and a second inlet 21 installed at two sides of the top of the housing 3, wherein a first check valve assembly 2 is installed inside the first inlet 16 and the second inlet 21, a discharge port 22 is communicated with the bottom of the housing 3, a second check valve assembly 13 is installed inside the discharge port 22, a middle partition plate is installed inside the housing 3 and divides the housing 3 into two groups of cavities, the two groups of cavities are respectively communicated with the first inlet 16 and the second inlet 21, a first piston cavity 7 and a second piston cavity 33 are respectively communicated with the two groups of cavities in the housing 3 are installed at an edge portion of one side of the housing 3, the inner sides of the first piston cavity 7 and the second piston cavity 33 are respectively provided with a first piston assembly and a second piston assembly, the first piston assembly and the second piston assembly are driven by a set of first driving assembly, the first driving assembly is provided with a limiting adjusting assembly for adjusting the first driving assembly to be connected with the first piston assembly or the second piston assembly, the connecting part of the middle top of the inner top of the shell 3 with the first feed inlet 16 and the second feed inlet 21 is provided with an inverted V-shaped partition plate 1 for separating and separating the first feed inlet 16 from the second feed inlet 21, the middle top of one side of the shell 3 is provided with a second driving assembly for driving the inverted V-shaped partition plate 1 and driving the limiting adjusting assembly, and two sets of cavities inside the shell 3 are internally provided with electric heating assemblies.
Connect transfer line and blood transfusion liquid pipe respectively through first feed inlet 16 and second feed inlet 21, adjust inverted V type division board 1 and seal another feed inlet to one of them feed inlet of first feed inlet 16 or second feed inlet 21 and open through starting second drive assembly, adjust spacing adjusting part through second drive assembly simultaneously and adjust first drive assembly, start first drive assembly drive first piston assembly or second piston assembly operation, carry out the infusion or blood transfusion, the process of carrying is realized through the cooperation of first check valve subassembly 2 and second check valve subassembly 13, two sets of cavities will infuse and separate the blood transfusion, avoid the problem of intermixing, realize that the electrical heating reduces the discomfort when using winter through starting electrical heating subassembly.
In this embodiment, the first check valve assembly 2 includes a first check valve 27, a first limiting spring 35 and a first annular seat 34, the first annular seat 34 is installed at the top of the inner sides of the first feed opening 16 and the second feed opening 21, the first check valve 27 is arranged on the inner side of the first annular seat 34, and the first limiting spring 35 is installed between the first annular seat 34 and the first check valve 27.
In this embodiment, the second check valve assembly 13 includes a second annular seat 18, a second check valve 36 and a second annular seat 18, the second annular seat 18 is installed at the bottom inside the discharge hole 22, the second check valve 36 is arranged on the inner side of the second annular seat 18, and a second limit spring 19 is arranged between the second check valve 36 and the second annular seat 18.
In this embodiment, electric heating element includes two sets of electric heating plate 5 and a set of electric heater 4, and two sets of cavity inner walls inside 3 casings are installed respectively to two sets of electric heating plate 5, and electric heater 4 installs the outer wall at casing 3, and through wire and 5 electric connection of two sets of electric heating plate, is equipped with the inside PLC controller that is equipped with of temperature control screen on electric heater 4.
In this embodiment, the first piston assembly includes a first piston 10, a first hinge rod 9, a first disc 8, a first L-shaped fixing arm 37, a first connecting rod 30 and a first clamping block 29, the first L-shaped fixing arm 37 is installed outside the first piston cavity 7, a bearing is installed at one end of the first L-shaped fixing arm 37 away from the first piston cavity 7, the first connecting rod 30 is installed through the bearing, the first disc 8 is installed at one end of the first connecting rod 30, one side of the first disc 8 away from the first connecting rod 30 is hinged to the first hinge rod 9 near an edge portion, the first piston 10 is located inside the first piston cavity 7 and is hinged to one end of the first hinge rod 9 away from the first disc 8 facing the side of the external opening of the first piston cavity 7.
In this embodiment, the second piston assembly includes a second L-shaped fixing arm 38, a second disc 24, a second hinge rod 25, a second connecting rod 39, a second fixture 40 and a second piston 23, the second piston 23 is located inside the second piston cavity 33, one end of the second hinge rod 25 is hinged to the second piston 23, the other end of the second hinge rod 25 is hinged to one side edge of the second disc 24, the second connecting rod 39 is installed in the middle of the other side of the second disc 24, the second fixture 40 is installed at the other end of the second connecting rod 39, the second L-shaped fixing arm 38 is installed outside the second connecting rod 39, and the other end of the second L-shaped fixing arm 38 is installed on the outer wall of the second piston cavity 33.
In this embodiment, spacing adjusting part includes spacing slide rail 17, spacing spring 32, fixed block 31 and L type dead lever 6, and spacing slide rail 17 is installed between first piston chamber 7 and second piston chamber 33 inner wall, and fixed block 31 is installed at the top of spacing slide rail 17, and spacing spring 32 is installed to one side of fixed block 31, and L type dead lever 6 is installed to the other end of spacing spring 32, and L type dead lever 6 is located and can slides on spacing slide rail 17 above spacing slide rail 17.
In this embodiment, the first driving assembly includes a second dual-head motor 14, a groove-type rotating rod 26 and a groove 28, the second dual-head motor 14 is installed at one end of the L-type fixing rod 6, the groove-type rotating rod 26 is installed at two ends of the second dual-head motor 14, and the groove 28 is opened at one end of the groove-type rotating rod 26 away from the second dual-head motor 14.
In this embodiment, the second driving assembly includes a first double-headed motor 11 and a cam 12, the first double-headed motor 11 is installed at the top middle portion of one side of the housing 3, one output end of the first double-headed motor 11 penetrates through the housing 3 and is fixed with the cam 12, and the other output end of the first double-headed motor 11 is installed with an inverted V-shaped partition plate 1 which is mutually matched with the L-shaped fixing rod 6.
The above description is only for the purpose of illustrating the present invention and is not intended to limit the scope of the present invention, and any person skilled in the art can substitute or change the technical solution of the present invention and its conception within the scope of the present invention.

Claims (4)

1. Constant temperature heating infusion perfusion treatment pump, its characterized in that: the device comprises a shell (3), a first feeding hole (16) and a second feeding hole (21) which are arranged on two sides of the top of the shell (3), wherein the first feeding hole (16) and the second feeding hole (21) are respectively communicated with a discharging hole (22), a second check valve assembly (13) is arranged on the inner side of the discharging hole (22), a middle partition plate is arranged inside the shell (3) and divides the shell (3) into two groups of cavities, the two groups of cavities are respectively communicated with the first feeding hole (16) and the second feeding hole (21), a first piston assembly and a second piston assembly are respectively arranged on the edge of one side of the shell (3) and respectively communicated with a first piston cavity (7) and a second piston cavity (33) in the shell (3), the first piston cavity (7) and the second piston cavity (33) are respectively arranged on the inner sides, the first piston assembly and the second piston assembly are driven by a group of first driving assembly, the first driving assembly is provided with a first adjusting assembly, the second piston assembly is connected with a second piston assembly (16) or the second piston assembly is arranged on the middle of the first driving assembly, and the second piston assembly (16) is connected with a second piston assembly (21), the middle of one side top of the shell (3) is provided with a driving inverted V-shaped partition plate (1) and a second driving assembly for driving a limiting and adjusting assembly, and electric heating assemblies are arranged in two groups of cavities in the shell (3);
the first check valve component (2) comprises a first check valve (27), a first limiting spring (35) and a first annular seat (34), the first annular seat (34) is installed at the tops of the inner sides of the first feed port (16) and the second feed port (21), the first check valve (27) is arranged on the inner side of the first annular seat (34), and the first limiting spring (35) is installed between the first annular seat (34) and the first check valve (27);
the second one-way valve assembly (13) comprises a second annular seat (18), a second one-way valve (36) and a second annular seat (18), the second annular seat (18) is installed at the inner bottom of the discharge hole (22), the second one-way valve (36) is arranged on the inner side of the second annular seat (18), and a second limiting spring (19) is arranged between the second one-way valve (36) and the second annular seat (18);
the electric heating assembly comprises two groups of electric heating plates (5) and one group of electric heaters (4), the two groups of electric heating plates (5) are respectively installed on the inner walls of the two groups of cavities in the shell (3), the electric heaters (4) are installed on the outer wall of the shell (3) and are electrically connected with the two groups of electric heating plates (5) through leads, and a temperature control screen is arranged on the electric heaters (4) and a PLC (programmable logic controller) is arranged in the temperature control screen;
the first piston assembly comprises a first piston (10), a first hinged rod (9), a first disc (8), a first L-shaped fixing arm (37), a first connecting rod (30) and a first clamping block (29), the first L-shaped fixing arm (37) is installed on the outer side of the first piston cavity (7), one end, far away from the first piston cavity (7), of the first L-shaped fixing arm (37) is provided with a bearing, the first connecting rod (30) is installed through the bearing, the first disc (8) is installed at one end of the first connecting rod (30), one side, far away from the first connecting rod (30), of the first disc (8) is hinged to the first hinged rod (9) close to the edge, and the first piston (10) is located on the inner side of the first piston cavity (7) and hinged to one side, facing the outer opening of the first piston cavity (7), of the first hinged rod (9) and one end, far away from the first disc (8), of the first hinged rod (9);
the second piston assembly comprises a second L-shaped fixing arm (38), a second disc (24), a second hinged rod (25), a second connecting rod (39), a second clamping block (40) and a second piston (23), the second piston (23) is located on the inner side of a second piston cavity (33), one end of the second hinged rod (25) is hinged to the second piston (23), the other end of the second hinged rod (25) is hinged to one side edge of the second disc (24), the second connecting rod (39) is installed in the middle of the other side of the second disc (24), the second clamping block (40) is installed at the other end of the second connecting rod (39), the second L-shaped fixing arm (38) is installed on the outer side of the second connecting rod (39), and the other end of the second L-shaped fixing arm (38) is installed on the outer wall of the second piston cavity (33).
2. The thermostatically heated infusion perfusion treatment pump of claim 1, wherein: spacing adjusting part includes spacing slide rail (17), spacing spring (32), fixed block (31) and L type dead lever (6), install spacing slide rail (17) first piston chamber (7) with between second piston chamber (33) inner wall, fixed block (31) are installed at the top of spacing slide rail (17), spacing spring (32) are installed to one side of fixed block (31), L type dead lever (6) are installed to the other end of spacing spring (32), just L type dead lever (6) are located spacing slide rail (17) top can slide on spacing slide rail (17).
3. The thermostatically heated infusion perfusion treatment pump of claim 2, wherein: the first driving assembly comprises a second double-head motor (14), a groove-shaped rotating rod (26) and a groove (28), the second double-head motor (14) is installed at one end of the L-shaped fixing rod (6), the groove-shaped rotating rod (26) is installed at two ends of the second double-head motor (14), and the groove (28) is formed in one end, away from the second double-head motor (14), of the groove-shaped rotating rod (26).
4. The thermostatically heated infusion perfusion treatment pump of claim 3, wherein: the second drive assembly comprises a first double-head motor (11) and a cam (12), the first double-head motor (11) is installed in the middle of the top of one side of the shell (3), an output end of the first double-head motor (11) penetrates through the shell (3) and is fixed by the cam (12), and an inverted V-shaped partition plate (1) matched with the L-shaped fixing rod (6) is installed at the other output end of the first double-head motor (11).
CN202010700784.4A 2020-07-20 2020-07-20 Constant temperature heating infusion perfusion treatment pump Expired - Fee Related CN111803759B (en)

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CN202010700784.4A CN111803759B (en) 2020-07-20 2020-07-20 Constant temperature heating infusion perfusion treatment pump

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Application Number Priority Date Filing Date Title
CN202010700784.4A CN111803759B (en) 2020-07-20 2020-07-20 Constant temperature heating infusion perfusion treatment pump

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CN111803759A CN111803759A (en) 2020-10-23
CN111803759B true CN111803759B (en) 2022-11-18

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