CN216559474U - Pressure detection device and infusion equipment - Google Patents

Abstract

The utility model discloses a pressure detection device and infusion equipment. Pressure measurement device includes pressure conduction mechanism and pressure measurement mechanism, and the relative both sides of pressure conduction mechanism are equipped with first face and second face, and fluid pressure in the pressure conduction mechanism can make first face and second face produce deformation. The pressure detection mechanism comprises a first detection assembly, a second detection assembly and a driving assembly; the driving assembly can drive at least one of the first detection assembly and the second detection assembly to move and is used for increasing or decreasing the distance between the first detection assembly and the second detection assembly; the first detection assembly is tightly attached to the first surface to detect the deformation of the first surface; when the driving assembly drives the first detection assembly, the second detection assembly is tightly attached to the second surface so as to detect the deformation of the second surface and further calculate the fluid pressure of the pressure transmission mechanism. The utility model solves the technical problem that the mode for monitoring and detecting the fluid pressure in the pipeline is unreliable in the prior art.

Description

Pressure detection device and infusion equipment

Technical Field

The utility model relates to the technical field of pressure detection, in particular to a pressure detection device and infusion equipment.

Background

In some pipelines for passing fluid, such as infusion tubes, water tubes, etc., based on safety considerations, for example, when a human body or an animal is injected or infused in vivo, the fluid pressure of the liquid medicine in the infusion tube can have different effects on the human body or the animal; the phenomenon of pipeline rupture can be caused by overlarge fluid pressure in the water pipe; it is necessary to know the pressure of the fluid in the pipeline in real time to ensure the safety of human or animals or to avoid the rupture of the pipeline. The existing pipeline pressure detection method generally monitors or detects the pressure of fluid in a pipeline by installing a pressure sensor on the pipeline, but the method lacks data capable of mutual authentication due to single monitoring or detected data, so that the monitoring or detected result is unreliable.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention provides a pressure detection device and an infusion apparatus, which are used to solve the technical problem in the prior art that the way for monitoring and detecting the pressure of fluid in a tube is not reliable.

A pressure detection device comprises a pressure transmission mechanism and a pressure detection mechanism, wherein a first surface and a second surface are arranged on two opposite sides of the pressure transmission mechanism, and the first surface and the second surface can be deformed by fluid pressure in the pressure transmission mechanism; the pressure detection mechanism comprises a first detection assembly, a second detection assembly and a driving assembly; the driving component can drive at least one of the first detection component and the second detection component to move so as to increase or decrease the distance between the first detection component and the second detection component; the first detection assembly is tightly attached to the first surface to detect the deformation quantity of the first surface; when the driving assembly drives the first detection assembly, the second detection assembly is tightly attached to the second surface so as to detect the deformation of the second surface and further calculate the fluid pressure of the pressure transmission mechanism.

In some embodiments of the pressure detection apparatus, the pressure detection mechanism further includes a connection component, the connection component includes a first sliding component, the first detection component is mounted on the first sliding component, the driving component is connected to the first sliding component and is configured to drive the first sliding component to move back and forth along a first direction, so as to enable the first detection component to be closely attached to the first surface and enable the second surface to be pressed against the second detection component; the first direction is a direction perpendicular to the first face or the second face.

In some embodiments of the pressure detection device, the connection assembly further includes a second sliding member, the second detection assembly is mounted on the second sliding member, and the driving assembly is in transmission connection with the second sliding member and is configured to drive the second sliding member to move back and forth along the first direction, so as to be able to drive the first detection assembly and the second detection assembly to approach or move away from each other.

In some embodiments of the pressure detection apparatus, the driving assembly includes a driving element and a first transmission element, the driving element is in transmission connection with the first transmission element and is used for driving the first transmission element to rotate, the connection assembly further includes a second transmission element, the second transmission element is sleeved on the first transmission element, the second transmission element is disposed between the first sliding element and the second sliding element and is respectively engaged with the first sliding element and the second sliding element, so that the driving element can drive the first detection assembly and the second detection assembly to approach or move away from each other.

In some embodiments of the pressure detection apparatus, the connection assembly further includes a guide member, and the first slider and the second slider are slidably connected to the guide member, respectively; the guide direction of the guide member is set along the first direction to guide the first slider and the second slider to slide along the first direction.

In some embodiments of the pressure detection apparatus, the connection assembly further includes a support member detachably connected to the guide member and configured to support the pressure conduction mechanism to mount the pressure conduction mechanism between the first detection assembly and the second detection assembly.

In some embodiments of the pressure detection apparatus, the support is provided with an opening for receiving the pressure transmission mechanism, and the shape of the opening matches with the pressure transmission mechanism.

In some embodiments of the pressure detection apparatus, the pressure conducting mechanism includes a housing and a pressure monitoring assembly, the housing is provided with an inflow port, an outflow port and a channel, the inflow port and the outflow port are respectively communicated with the channel, and the inflow port and the outflow port are respectively connected with a pipeline; the pressure monitoring assembly comprises two monitoring elements, each monitoring element is arranged on the shell and is oppositely arranged on two sides of the channel, the monitoring elements can be deformed by the pressure of fluid in the channel, and the first surface and the second surface are formed on one side, deviating from the channel, of each monitoring element so as to calculate the fluid pressure of the channel.

In some embodiments of the pressure detection apparatus, the housing is provided with a plurality of cavities, and the cavities are circumferentially arranged on the channel along the channel and are communicated with the channel; each monitoring element corresponds to each cavity in a one-to-one mode and at least partially covers the cavity, so that fluid pressure in the cavity can enable the monitoring elements to deform relative to the cavity.

An infusion device comprising a pressure detection arrangement as described in any of the above embodiments.

The embodiment of the utility model has the following beneficial effects:

the pressure detection device is applied to the infusion equipment, and can solve the technical problem that the way of detecting the fluid pressure in the pipeline by the pressure detection device and the infusion equipment in the prior art is unreliable, in particular, the pressure detection device comprises a pressure conduction mechanism and a pressure detection mechanism, the pressure detection mechanism comprises a first detection component, a second detection component and a driving component, the first detection component and the second detection component are oppositely arranged at two sides of the pressure conduction mechanism and can increase or decrease the distance between the first detection component and the second detection component under the driving action of the driving component, so that the pressure conduction mechanism can be clamped in the distance reduction process, further the deformation quantity of a first surface and the deformation quantity of a second surface of the pressure conduction mechanism can be respectively detected, and finally the compression conditions of the first surface and the second surface of the pressure conduction mechanism can be known, the mutual verification can be realized, so that the reliability of the pressure detection mechanism can be improved, and the technical problem that the mode for monitoring and detecting the fluid pressure in the pipeline is unreliable in the prior art is solved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic view showing the overall structure of a pressure detecting apparatus according to an embodiment;

FIG. 2 is a schematic view of a portion of the pressure detecting device shown in FIG. 1

FIG. 3 is an exploded view of the pressure detecting device shown in FIG. 1 from another angle;

FIG. 4 is a front view of the pressure conduction mechanism of FIG. 1;

fig. 5 is a sectional view taken along a line a-a of the pressure conduction mechanism shown in fig. 4.

Wherein: 1. a first detection assembly; 2. a second detection assembly; 3. a drive assembly; 31. a drive member; 32. a connecting member; 33. a first transmission member; 41. a first slider; 411. a first engaging portion; 412. a short-segment portion; 413. a long section; 42. a second slider; 421. a second engaging portion; 422. a slider; 43. a first guide member; 431. a first chute; 44. a second guide member; 441. a second chute; 45. a second transmission member; 46. a support member; 461. an opening; 462. a guide port; 463. opening the gap; 5. a first housing case; 6. a second housing case; 100. a pressure conducting mechanism; 101. a housing; 1011. an inflow port; 1012. an outflow port; 1013. a channel; 1014. a first protrusion; 10141. a first cavity; 1015. a second protrusion; 10151. a second cavity; 102. a first monitoring element; 1021. a first side; 1022. a first recess; 103. a first cover plate; 104. a second monitoring element; 1041. a second face; 1042. a second recess; 105. a second cover plate; 200. a pipeline.

Detailed Description

To facilitate an understanding of the utility model, the utility model will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. The utility model may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

In one embodiment of a pressure monitoring device, shown in conjunction with fig. 1-5, a pressure conducting mechanism 100 includes a housing 101 and a pressure monitoring assembly; the casing 101 is provided with an inlet 1011, an outlet 1012, and a duct 1013, the inlet 1011 and the outlet 1012 being respectively communicated with the duct 1013, and the inlet 1011 and the outlet 1012 being respectively connected to the pipe 200.

The pressure monitoring assembly comprises two monitoring elements, each monitoring element is mounted on the shell 101 and is arranged on two sides of the channel 1013 relatively, the pressure of fluid in the channel 1013 can enable the monitoring elements to generate deformation, and a first surface 1021 and a second surface 1041 are formed on one side of the monitoring elements, which is far away from the channel 1013, so that the fluid pressure on two opposite sides of the same part of the channel 1013 can be known.

The pipe 200 may be divided into an inflow pipe communicating with the inflow port 1011 and an outflow pipe communicating with the outflow port 1012.

In the present embodiment, the two monitoring elements may be a first monitoring element 102 and a second monitoring element 104, and preferably, the first monitoring element 102 and the second monitoring element 104 are oppositely disposed on two radial sides of the channel 1013. The fluid pressure in the fluid flowing process in the channel 1013 can be sensed by the first monitoring element 102 and the second monitoring element 104 on both sides, so that the fluid pressures on both sides can be monitored, and by monitoring the fluid pressures on both sides, the monitoring results can be mutually verified, so that the reliability of the pressure conduction mechanism 100 can be improved, and the technical problem in the prior art that the way for monitoring and detecting the fluid pressure in the pipeline is unreliable is solved. The first surface 1021 is the surface of the first monitoring element 102 facing away from the channel 1013, and the second surface 1041 is the surface of the second monitoring element 104 facing away from the channel 1013.

In one embodiment of the pressure conducting mechanism 100, the housing 101 is provided with a plurality of cavities, and the cavities are circumferentially arranged in the channel 1013 along the channel 1013 and are communicated with the channel 1013; the monitoring elements correspond to the cavities one by one and at least partially cover the cavities, so that the fluid pressure in the cavities can deform the monitoring elements relative to the cavities.

In this embodiment, the cavities include a first cavity 10141 and a second cavity 10151, the first cavity 10141 corresponds to the first monitoring element 102, the second cavity 10151 corresponds to the second monitoring element 104, preferably, the first cavity 10141 and the second cavity 10151 are oppositely disposed at two sides of the housing 101 along the radial direction of the channel 1013, the first cavity 10141 and the second cavity 10151 are oppositely disposed on the housing 101, and the first cavity 10141 and the second cavity 10151 are communicated with each other, so that the fluid can flow into the first cavity 10141 and the second cavity 10151, the first cavity 10141 and the second cavity 10151 can reduce the thickness of the inner wall of the housing 101, so that the monitoring errors of the first monitoring element 102 and the second monitoring element 104 can be reduced, and the accuracy of the monitoring data can be improved.

Preferably, the first cavity 10141 and the second cavity 10151 are completely open, that is, one end of the first cavity 10141 and one end of the second cavity 10151 are communicated with the channel 1013, and the other end far from the channel 1013 is communicated with the external space, the first monitoring element 102 covers the port of the first cavity 10141 far from the channel 1013, and seals the first cavity 10141, so that the fluid flowing into the first cavity 10141 can directly contact the first monitoring element 102, thereby deforming the first monitoring element 102, greatly improving the accuracy of the data monitoring of the first monitoring element 102, and eliminating the remaining interference; the second monitoring element 104 and the second cavity 10151 are also of the same structure, so that the accuracy of the fluid pressure data monitored on both sides can be improved, and the reliability can be improved.

Specifically, the first monitoring element 102 and the second monitoring element 104 may be diaphragms, such as silicone diaphragms, capable of deforming when being pressed by impact to achieve the purpose of monitoring the fluid pressure, and specifically, detecting the magnitude of the deformation amount through a pressure detection device to determine the magnitude of the fluid pressure.

In a further embodiment of the above-mentioned pressure transmission mechanism 100, the housing 101 is provided with a plurality of protrusions circumferentially arranged along the channel 1013, and the cavities are provided in one-to-one correspondence with the protrusions; the monitoring element is engaged with an end of the projection remote from the channel 1013.

In the embodiment of the pressure transmission mechanism 100, the end of the protrusion far from the channel 1013 is provided with a notch to communicate the cavity with the outside, and the monitoring element covers the notch to seal the notch.

In the above embodiment, a specific structure is provided, specifically, the protrusions include a first protrusion 1014 and a second protrusion 1015, preferably, the first protrusion 1014 and the second protrusion 1015 are disposed at two sides of the channel 1013 in the radial direction, the housing 101 may be in a cylindrical or rectangular structure, and an inflow pipe and an outflow pipe are mounted on the housing 101, and the caliber of the outflow pipe may be set to be smaller than that of the inflow pipe to communicate with the inflow port 1011 and the outflow port 1012 formed on the housing 101, respectively, and preferably, the inflow port 1011 and the outflow port 1012 are disposed on a straight line, so that the fluid in the channel 1013 can flow more smoothly. On opposite sides of the channel 1013 in the direction of fluid flow, such as when the housing 101 is of cylindrical configuration, the inlet 1011 and the outlet 1012 are provided on both sides of the casing 101 in the radial direction, so that the flow direction of the fluid is parallel to the radial direction of the casing 101, and a first protrusion 1014 and a second protrusion 1015 are respectively arranged on two end faces of the shell 101, preferably, the first protrusion 1014 and the second protrusion 1015 may be circular ring structures arranged along the circumference of the shell 101, thereby forming notches, the first and second cavities 10141 and 10151 can be enlarged in size by providing the first and second protrusions 1014 and 1015, so that when the fluid enters the first cavity 10141 and the second cavity 10151, the walking path is lengthened, therefore, the problem that the fluid pressure is unstable due to the fact that the fluid impacts the cavity walls of the first cavity 10141 and the second cavity 10151 is avoided, and therefore the problem that the monitored fluid pressure is inaccurate is avoided; the additional provision of first protrusion 1014 and second protrusion 1015 provides a height differential that further facilitates first monitoring element 102 and second monitoring element 104 sealing the gap between first protrusion 1014 and second protrusion 1015 to prevent fluid from exiting channel 1013.

In an embodiment of the pressure transmission mechanism 100, the pressure transmission mechanism 100 further includes a plurality of cover plates, each cover plate presses the monitoring element to the housing 101 in a one-to-one correspondence with each monitoring element, and is buckled with the housing 101 to fix the monitoring element.

In the present embodiment, specifically, the cover plate includes a first cover plate 103 and a second cover plate 105, the first monitoring element 102 and the second monitoring element 104 are pressed onto the housing 101 through the first cover plate 103 and the second cover plate 105, and the first monitoring element 102 can cover the first cavity 10141, and the second monitoring element 104 can cover the second cavity 10151. The first cover plate 103 and the second cover plate 105 can also function as a seal.

In a further embodiment of the above pressure transmission mechanism 100, the monitoring element is provided with a concave portion matching with the monitoring element on a side opposite to the protrusion, the cover plate is provided with a through hole, and the concave portion is disposed through the through hole. Specifically, the first detecting element 102 is provided with a first recess 1022, and the second detecting element 104 is provided with a second recess 1042.

Specifically, in the present embodiment, the first monitoring element 102 is provided with a first recess 1022, the first monitoring element 102 is a structure matching with the housing 101 and the first protrusion 1014, such as a circular plate structure, while the first recess 1022 is a cylindrical recess, and the cross-sectional shape of the first recess 1022 is U-shaped, so as to match with the first protrusion 1014, and in addition, it can be understood that the first recess 1022 refers to a recess opposite to the first protrusion 1014. The engagement between the second concave portion 1042 and the second protrusion 1015 is the same as the engagement between the first concave portion 1022 and the first protrusion 1014, and therefore, the detailed description thereof is omitted. The first cover plate 103 is an annular structure, a circular first through hole is formed in the center of the first cover plate 103, the first concave part 1022 extends into the first through hole, and then the first cover plate 103 presses the rest of the first monitoring element 102 against the housing 101, and can be connected with the housing 101 in a snap-fit manner, so that the first monitoring element 102 can be fixed on the housing 101. The second cover plate 105 cooperates with the second monitoring element 104 in the same way.

In an embodiment of the pressure conduction mechanism 100, a side of the monitoring element facing away from the housing 101 is provided with a protruding ring along a circumferential direction of the monitoring element, a side of the cover plate opposite to the monitoring element is provided with a groove matched with the protruding ring, and the protruding ring extends into the groove and can be used for clamping the monitoring element on the cover plate through the through hole and the groove.

Specifically, the first convex ring is disposed on the outer edge of the first monitoring element 102, that is, the edge of the first monitoring element 102 is provided with an annular first convex ring, an annular groove matched with the shape of the first convex ring is formed on the surface of the first cover plate 103 opposite to the first monitoring element 102, that is, the annular groove is a first groove, the first convex ring can be clamped by the first groove, so that the first monitoring element 102 can be clamped on the first cover plate 103, and by the design of the first groove and the first convex ring, the sealing performance between the first cover plate 103 and the first convex ring can be further increased, and the fluid in the channel 1013 is prevented from overflowing.

The second monitoring element 104 is identical in structure to the first monitoring element 102, and the second cover plate 105 is identical in structure to the first cover plate 103. The first monitoring element 102 and the second monitoring element 104 are designed to be of the same structure, the first cover plate 103 and the second cover plate 105 are also designed to be of the same structure, the whole shell 101 can also be designed to be of a symmetrical structure with the upper side and the lower side, so that the first monitoring element 102 and the second monitoring element 104 as well as the first cover plate 103 and the second cover plate 105 are respectively symmetrically arranged on two opposite sides, the structure is the same, the installation positions are symmetrical, the fluid pressure on two sides of the same monitoring position can be monitored, the interference can be eliminated, the monitoring data of the first monitoring element 102 and the second monitoring element 104 tend to be the same, and the mutual verification effect can be achieved.

In one embodiment of the pressure conduction mechanism 100, the aperture of the inflow port 1011 is larger than the outflow port 1012. The pressure conduction mechanism 100 can be installed at the middle position of the pipeline 200, such as an infusion tube, the caliber of the inlet 1011 is large, the liquid can flow into the channel 1013 quickly, the flow rate is controlled by the narrow outlet 1012, and the discomfort of the patient caused by the too fast flow rate during the injection is avoided.

The existing pipeline pressure detection mode generally monitors and detects the pressure of fluid in a pipeline by installing a pressure sensor on the pipeline, but the mode lacks data which can be verified mutually due to single monitoring and detected data, so that the monitoring and detected results are unreliable.

As shown in fig. 1-3, in one embodiment of the pressure sensing device, the pressure sensing device includes a pressure conducting mechanism 100 and a pressure sensing mechanism. The pressure transmission mechanism 100 is provided with a first surface 1021 and a second surface 1041 on two opposite sides, and the fluid pressure in the pressure transmission mechanism 100 can deform the first surface 1021 and the second surface 1041. The pressure detection mechanism comprises a first detection assembly 1, a second detection assembly 2 and a driving assembly 3; the driving assembly 3 can drive at least one of the first detecting assembly 1 and the second detecting assembly 2 to move, so as to increase or decrease the distance between the first detecting assembly 1 and the second detecting assembly 2. The distance between the first detection assembly 1 and the second detection assembly 2 is increased or reduced, so that the first detection assembly 1 of the first detection assembly 1 is tightly attached to the first surface 1021 to detect the deformation amount of the first surface 1021; when the driving assembly 3 drives the first detecting assembly 2, the second detecting assembly 2 is tightly attached to the second surface 1041 to detect the deformation of the second surface 1041, and further calculate the fluid pressure of the pressure transmitting mechanism 100.

In this embodiment, the first detection component 1 and the second detection component 2 are relatively disposed on two sides of the pressure conduction mechanism 100, and can increase or decrease the distance between the first detection component 1 and the second detection component 2 under the driving action of the driving component 3, so as to clamp the pressure conduction mechanism 100 in the process of decreasing the distance, and further detect the deformation quantity of the first surface 1021 and the deformation quantity of the second surface 1041 of the pressure conduction mechanism 100 respectively, and finally know the compression conditions of the first surface 1021 and the second surface 1041 of the pressure conduction mechanism 100, and can verify each other, thereby improving the reliability of the pressure detection mechanism, and the technical problem that the mode for detecting the fluid pressure in the pipeline in the prior art is unreliable is solved.

In an embodiment of the pressure detecting apparatus, as shown in fig. 1 to 5, the pressure detecting mechanism further includes a connecting component, the connecting component includes a first sliding component 41, the first detecting component 1 is mounted on the first sliding component 41, the driving component 3 is connected to at least one of the first detecting component 1 and the second detecting component 2, and is configured to drive the first sliding component 41 to move back and forth along the first direction, so as to enable the first detecting component 1 to cling to the first surface 1021, and to cling the second surface 1041 to the second detecting component 2. The first direction is a direction perpendicular to the first face or the second face.

In the present embodiment, the first direction is a direction in which the first sliding member 41 leans towards the pressure conduction mechanism 100, and the first sliding member 41 can approach the pressure conduction mechanism 100 along an oblique direction forming an angle with the pressure conduction mechanism 100, and preferably the first direction is a direction perpendicular to the pressure conduction mechanism 100, specifically, the first direction is perpendicular to the first surface 1021 and the second surface 1041, which corresponds to an X direction in fig. 3, and it can be understood that a direction in which the first sliding member 41 departs from the pressure conduction mechanism 100 is an opposite direction of the first direction.

It should be clear that the present embodiment includes three embodiments, in the first embodiment, the position of the second detecting element 2 is fixed, the driving element 3 drives the first detecting element 1 to the pressure conducting mechanism 100, and continues to push the pressure conducting mechanism 100 to move toward the second detecting element 2. In the second embodiment, the position of the first detecting component 1 can be fixed, and the driving component 3 drives the second detecting component 2 to move, and the moving mode and principle are the same. In the third embodiment, the first detecting assembly 1 and the second detecting assembly 2 can be driven to move by the driving assembly 3.

The first and second embodiments are both to drive one of the first detecting member 1 and the second detecting member 2 singly, and the other is fixed, and compared with the third embodiment, the position setting of the driving member 3 is more flexible, and the wear of the parts of the driving member 3 can be reduced.

Specifically, in the first embodiment, the driving assembly 3 drives the first detecting assembly 1 to move by driving the first slider 41, so that the first detecting assembly 1 can be abutted to the pressure conducting mechanism 100 to be abutted to the first surface 1021 of the pressure conducting mechanism 100, and the first detecting assembly 1 can also push the pressure conducting mechanism 100 to move, so that the second surface 1041 of the pressure conducting mechanism 100 is attached to the second detecting assembly 2, specifically, the pressure conducting mechanism 100 can be a cylindrical structure, two end surfaces of the pressure conducting mechanism 100 are respectively the first surface 1021 and the second surface 1041, the first detecting assembly 1 and the second detecting assembly 2 are respectively close to the first surface 1021 and the second surface 1041, the first detecting assembly 1 can be driven by the driving assembly 3 to be close to or far from the pressure conducting mechanism 100, and can drive the pressure conducting mechanism 100 to move along the axial direction thereof, so that the second surface 1041 is abutted to the second detecting assembly 2, and finally, the first detection unit 1 and the second detection unit 2 can be closely attached to the first surface 1021 and the second surface 1041, respectively. Through the drive of drive assembly 3, can make first detection subassembly 1 and second detection subassembly 2 keep away from each other to can loosen pressure conduction mechanism 100, be convenient for dismantle pressure conduction mechanism 100, and can also make first detection subassembly 1 and second detection subassembly 2 closely laminate to the first face 1021 and the second face 1041 that can produce deformation at the in-process that drive first detection subassembly 1 and second detection subassembly 2 are close to each other, thereby make the data that detect more reliable.

The driving component 3 of the second embodiment drives the second detecting component 2 to move, and the moving manner and principle are the same as those of the first embodiment, and are not described again.

In the third embodiment of the pressure detecting device, the connecting assembly further includes a second sliding member 42, the second detecting assembly 2 is mounted on the second sliding member 42, and the driving assembly 3 is in transmission connection with the second sliding member 42 and is used for driving the second sliding member 42 to move back and forth along the first direction, so as to drive the first detecting assembly 1 and the second detecting assembly 2 to approach or move away from each other.

In the third embodiment, by providing the second sliding member 42 and connecting the driving assembly 3 with the first sliding member 41 and the second sliding member 42, respectively, the driving assembly 3 drives the first sliding member 41 and the second sliding member 42 to move towards or away from each other at the same time, so that the first detecting member 1 and the second detecting member 2 can move toward or away from each other, the first slider 41 and the second slider 42 can move toward or away from each other by the single driving member 3, the first sensing element 1 and the second sensing element 2 may be better attached to the first side 1021 and the second side 1041 respectively, in the present embodiment, the pressure transmission mechanism 100 may be fixed in position, and the driving assembly 3 may drive the first detecting assembly 1 and the second detecting assembly 2 to approach the pressure transmission mechanism 100, respectively, so as to prevent the pressure transmission mechanism 100 from wearing the pipeline 200 on the pressure transmission mechanism 100 during the movement process.

Specifically, the first slider 41 and the second slider 42 may have the same structure, so that the difference between symmetrical structures on two sides can be reduced, thereby preventing the environmental factors from interfering with the detection result. Taking the first sliding member 41 as an example, the first sliding member 41 may be an L-shaped plate, the long section 413 of the first sliding member 41 extends along the axial direction of the pressure transmission mechanism 100, the short section 412 of the first sliding member 41 is perpendicular to the long section 413 along the radial direction of the pressure transmission mechanism 100, the short section 412 extends to a position close to the pressure transmission mechanism 100, the first detecting assembly 1 is fixedly connected to one side of the short section 412 opposite to the pressure transmission mechanism 100, and the driving assembly 3 drives the long section 413 to move, so as to move the first detecting assembly 1.

In an embodiment of the pressure detection device, the connection assembly further comprises a guide member, to which the first slider 41 and the second slider 42 are slidably connected, respectively; the guide direction of the guide is set in the first direction to guide the first slider 41 and the second slider 42 to slide in the first direction.

Specifically, in the present embodiment, the guide member includes a first guide member 43 and a second guide member 44, the first guide member 43 and the second guide member 44 may be rectangular block structures, the pressure conduction mechanism 100 is disposed between the first guide member 43 and the second guide member 44, and opposite side surfaces of the first guide member 43 and the second guide member 44 are respectively provided with a sliding groove or a protrusion along an axial direction of the pressure conduction mechanism 100, taking the sliding groove as an example, when the sliding groove corresponds to the first guide member 43 and the second guide member 44 respectively, it can be understood that, referring to fig. 2, the first guide member 43 is provided with a first sliding groove 431, and the second guide member 44 is provided with a second sliding groove 441. The long section 413 of the first sliding member 41 is provided with a sliding block capable of extending into the sliding slot or being clamped to the protrusion to form an i shape, the sliding blocks are correspondingly and correspondingly arranged on the first sliding member 41 and the second sliding member 42, and correspond to the sliding block 422 on the second sliding member 42, the sliding block structure on the first sliding member 41 is the same as the sliding block 422, which is mentioned above and is not described again. By providing the first guide 43 and the second guide 44, the movement of the first slider 41 and the second slider 42 can be smoothly guided. The second slide member 42 is moved relative to the first slide member 41, and in synchronization with the movement of the first slide member 41, the second slide member 42 is moved in the first direction by the guide of the second guide member 44 under the drive of one of the drive units 3.

In an embodiment of the pressure detecting device, the driving assembly 3 includes a driving member 31 and a first transmission member 33, the driving member 31 is in transmission connection with the first transmission member 33 and is used for driving the first transmission member 33 to rotate, the connecting assembly further includes a second transmission member 45, the second transmission member 45 is sleeved on the first transmission member 33, the second transmission member 45 is disposed between the first sliding member 41 and the second sliding member 42 and is respectively engaged with the first sliding member 41 and the second sliding member 42, so that the driving member 31 can drive the first detecting assembly 1 and the second detecting assembly 2 to approach or move away from each other.

Specifically, in the present embodiment, the driving assembly 3 is disposed below the first guiding element 43 and the second guiding element 44 away from the pressure transmission mechanism 100, the driving element 31 may be a motor, the first transmission element 33 may be a transmission shaft, the driving element 31 can drive the first transmission element 33 to rotate, a connecting piece 32 is arranged between the driving piece 31 and the guiding piece, the connecting piece 32 is a U-shaped plate structure, the U-shaped opening of the connecting piece 32 faces the pressure transmission mechanism 100, the two ends of the U-shape of the connecting piece 32 respectively extend outwards and horizontally, the two extending parts are respectively fixedly connected with the first guiding piece 43 and the second guiding piece 44, the first transmission piece 33 penetrates through the U-shaped bottom surface of the connecting piece 32 and then extends out, and is fixed with the second transmission piece 45, the second transmission piece 45 is installed at the position of the first transmission piece 33 corresponding to the sliding slot or the protrusion, the second transmission piece 45 can be a gear and is fixed with the first transmission piece 33 through key connection. The long section 413 of the first sliding member 41 is provided with a first engaging portion 411 along the first direction opposite to the second transmission member 45, and the long section 413 of the second sliding member 42 is provided with a second engaging portion 421 along the first direction opposite to the second transmission member 45, that is, the first engaging portion 411 and the second engaging portion 421 are provided on the sides far away from the respective sliders. By engaging with the second transmission member 45, and the second transmission member 45 is disposed between the first engagement portion 411 and the second engagement portion 421, the moving direction of the first sliding member 41 and the second sliding member 42 can be made to be the first direction or the direction opposite to the first direction in the case where the second transmission member 45 rotates. That is, the moving directions of the first slider 41 and the second slider 42 are made opposite, so that the first detecting unit 1 and the second detecting unit 2 mounted on the first slider 41 and the second slider 42, respectively, can be driven to approach or separate from each other. When the first and second detecting elements 1 and 2 are close to each other, the first detecting element 1 is closely attached to the first surface 1021 of the pressure transmission mechanism 100, and the second detecting element 2 is closely attached to the second surface 1041 of the pressure transmission mechanism 100. The first and second engagement portions 411 and 421 may each be a rack structure.

In one embodiment of the pressure detection device, the transmission ratio between the first slider 41, the second transmission 45 and the second slider 42 is 1: 1: 1.

in the present embodiment, by setting the transmission ratio among the first engagement portion 411, the second transmission member 45, and the second engagement portion 421 to 1: 1: 1, can make the first slider 41 of rotation drive of second driving medium 45 and second slider 42 remove the same distance to accomplish synchronous movement the same distance, locate pressure conduction mechanism 100 between first determine module 1 and the second determine module 2, thereby make the detection structure of the relative both sides of pressure conduction mechanism 100 the same, avoid disturbing the degree of accuracy that detects, improve the reliability. Specifically, the first detecting component 1 and the second detecting component 2 may be pressure sensor components, and the sensing surfaces of the pressure sensors are used for fitting the deformation surfaces of the pressure transmission mechanism 100.

In one embodiment of the pressure testing apparatus, the connecting assembly further comprises a supporting member 46, wherein the supporting member 46 is detachably connected to the guiding member and is used for supporting the pressure transmission mechanism 100 so as to mount the pressure transmission mechanism 100 between the first testing assembly 1 and the second testing assembly 2.

In this embodiment, the supporting member 46 is detachably mounted on the upper surfaces of the first and second guide members 43 and 44, and is perpendicular to the first and second guide members 43 and 44. The support 46 is used to support the pressure conduction mechanism 100.

In the previous embodiment, when the driving assembly 3 drives the first detecting assembly 1 to approach the second detecting assembly 2 singly, the supporting member 46 is detachably and slidably mounted on the first guiding member 43 and the second guiding member 44, so that the supporting member 46 can be moved to lean against the second detecting assembly 2 under the sliding push of the first detecting assembly 1. When the driving assembly 3 drives the first detecting assembly 1 and the second detecting assembly 2 to move simultaneously, the supporting member 46 may be configured to be non-sliding, for example, by fixing the supporting member 46 detachably to the first guiding member 43 and the second guiding member 44 by bolts. The support member 46 can better support the pressure conduction mechanism 100, and the pressure conduction mechanism 100 can be conveniently positioned and installed.

In an embodiment of the pressure detecting apparatus, the supporting member 46 is provided with an opening 461, the opening 461 is used for receiving the pressure transmission mechanism 100, and the shape of the opening 461 matches with the pressure transmission mechanism 100.

In this embodiment, specifically, the supporting member 46 is a rectangular block structure, two ends of the supporting member 46 in the length direction are detachably connected to the first guiding member 43 and the second guiding member 44, an opening 461 is provided on a side of the supporting member 46 away from the driving assembly 3, the shape of the opening 461 matches with the structure of the housing 101 of the pressure conduction mechanism 100, and if the pressure conduction mechanism 100 is cylindrical, the opening 461 is arc-shaped; the pressure conduction mechanism 100 is square, and the opening 461 is square, so that the side wall of the pressure conduction mechanism 100 can be attached to the bottom of the opening 461 to support the bottom of the pressure conduction mechanism 100.

In an embodiment of the pressure detecting apparatus, the supporting member 46 is provided with a guiding opening 462, the guiding opening 462 is communicated with the opening 461, the guiding opening 462 is provided at an end position of the opening 461, the guiding opening 462 is a positioning groove formed on a side wall of the opening 461, and the positioning groove is used for guiding the pressure conducting mechanism 100 to enter the opening 461.

In this embodiment, specifically, the upper surface of the supporting member 46 at the two ends of the opening 461 is opened with a rectangular guide opening 462, and the guide opening 462 is communicated with the opening 461, so that a step can be formed with the inner wall of the opening 461, thereby enlarging the size of the opening as a whole and facilitating the introduction of the pressure conduction mechanism 100 into the opening 461.

In addition, as shown in fig. 1 to 5, two cutouts 463 are provided at the top positions of both ends in the longitudinal direction of the support member 46 for supporting the duct walls of the inflow port 1011 and the outflow port 1012 of the pressure conduction mechanism 100, respectively.

In addition, the pressure detection device may further include a first housing case 5 and a second housing case 6, the first housing case 5 and the second housing case 6 are case structures with the same structure, the first housing case 5 and the second housing case 6 are respectively fixedly connected to two side surfaces of the support 46 along the first direction, a first sliding space is formed by the first housing shell 5 and the supporting piece 46, a second sliding space is formed by the second housing shell 6 and the supporting piece 46, the first detecting component 1 is housed in the first sliding space, and can slide in the first sliding space, the second detection component 2 is accommodated in the second sliding space and can slide in the second sliding space, the first detection assembly 1 and the second detection assembly 2 can be completely accommodated and protected by additionally arranging the first accommodating shell 5 and the second accommodating shell 6, and the sliding process is completely free from external influence.

In addition, the utility model also relates to an infusion device, which can be a medical device for infusing the contrast medium, and the accuracy of the infusion device for detecting the fluid pressure in the pipeline 200 can be improved by applying the pressure detection device to the infusion device.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above examples only show some embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (10)

1. A pressure detection device, characterized in that: the device comprises a pressure transmission mechanism and a pressure detection mechanism, wherein a first surface and a second surface are arranged on two opposite sides of the pressure transmission mechanism, and the first surface and the second surface can be deformed by fluid pressure in the pressure transmission mechanism;

the pressure detection mechanism comprises a first detection assembly, a second detection assembly and a driving assembly; the driving component can drive at least one of the first detection component and the second detection component to move so as to increase or decrease the distance between the first detection component and the second detection component; the first detection assembly is tightly attached to the first surface to detect the deformation quantity of the first surface; when the driving assembly drives the first detection assembly, the second detection assembly is tightly attached to the second surface so as to detect the deformation of the second surface and further calculate the fluid pressure of the pressure transmission mechanism.

2. The pressure detection device of claim 1, wherein: the pressure detection mechanism further comprises a connecting assembly, the connecting assembly comprises a first sliding piece, the first detection assembly is mounted on the first sliding piece, the driving assembly is connected with the first sliding piece and used for driving the first sliding piece to move back and forth along a first direction, so that the first detection assembly can be attached to the first surface tightly, and the second surface can be attached to the second detection assembly in a pressing mode; the first direction is a direction perpendicular to the first face or the second face.

3. The pressure detection device according to claim 2, wherein: the connecting assembly further comprises a second sliding piece, the second detection assembly is mounted on the second sliding piece, the driving assembly is in transmission connection with the second sliding piece and is used for driving the second sliding piece to move back and forth along the first direction so as to drive the first detection assembly and the second detection assembly to approach or move away from each other.

4. The pressure detection device of claim 3, wherein: the driving assembly comprises a driving piece and a first transmission piece, the driving piece is in transmission connection with the first transmission piece and used for driving the first transmission piece to rotate, the connecting assembly further comprises a second transmission piece, the second transmission piece is sleeved on the first transmission piece, the second transmission piece is arranged between the first sliding piece and the second sliding piece and is respectively meshed with the first sliding piece and the second sliding piece, and therefore the driving piece can drive the first detection assembly and the second detection assembly to be close to or far away from each other.

5. The pressure detecting device according to claim 3 or 4, wherein: the connecting assembly further comprises a guide member, and the first sliding member and the second sliding member are respectively connected to the guide member in a sliding manner; the guide direction of the guide member is set along the first direction to guide the first slider and the second slider to slide along the first direction.

6. The pressure detection device of claim 5, wherein: the connecting assembly further comprises a supporting piece which is detachably connected to the guide piece and used for supporting the pressure conduction mechanism, so that the pressure conduction mechanism is erected between the first detection assembly and the second detection assembly.

7. The pressure detection device of claim 6, wherein: the supporting piece is provided with an opening, the opening is used for accommodating the pressure transmission mechanism, and the shape of the opening is matched with that of the pressure transmission mechanism.

8. The pressure detection device of claim 1, wherein: the pressure conduction mechanism comprises a shell and a pressure monitoring assembly, wherein the shell is provided with an inflow port, an outflow port and a channel, the inflow port and the outflow port are respectively communicated with the channel, and the inflow port and the outflow port are respectively connected with a pipeline; the pressure monitoring assembly comprises two monitoring elements, each monitoring element is arranged on the shell and is oppositely arranged on two sides of the channel, the monitoring elements can be deformed by the pressure of fluid in the channel, and the first surface and the second surface are formed on one side, away from the channel, of each monitoring element so as to calculate the fluid pressure of the channel.

9. The pressure detection device of claim 8, wherein: the shell is provided with a plurality of cavities, and the cavities are circumferentially arranged on the channel along the circumferential direction of the channel and are communicated with the channel; each monitoring element corresponds to each cavity in a one-to-one mode and at least partially covers the cavity, so that fluid pressure in the cavity can enable the monitoring elements to deform relative to the cavity.

10. An infusion device characterized by: comprising a pressure detection device according to any of claims 1-9.

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