Medical infusion pipeline pressure detection device

Abstract

The invention discloses a medical infusion pipeline pressure detection device which comprises a shell, symmetrical moving grooves are formed in an inner cavity of the shell, positioning mechanisms used for clamping and positioning an infusion pipeline are arranged in inner cavities of the moving grooves, symmetrical movable grooves are formed in the outer portion of the shell, inner cavities of the movable grooves are movably connected with push rods, and the push rods are movably connected with the movable grooves. A cavity is formed in the side wall of one side of the shell, a driving mechanism used for driving the positioning mechanism and the push rod to move is arranged in an inner cavity of the cavity, and when the driving mechanism rotates, the positioning mechanism horizontally moves towards the center position of the shell. The driving groove is driven to rotate anticlockwise through clamping fit of the driving block and the driving groove, the effect of driving the symmetrical clamping plates to clamp an infusion pipeline is achieved, the infusion pipelines of various sizes can be clamped and positioned, the infusion pipelines are stretched through the symmetrical stretching plates, the bending degree of the infusion pipelines is reduced as much as possible, and the production efficiency is improved. And the contact surface between the outer wall and the pressure sensor is wider.

Description

Technical Field

[0001] The invention relates to the technical field of medical devices, in particular to a medical infusion pipeline pressure detection device. Background Art

[0002] Infusion is a commonly used method of treating diseases. During infusion, there are certain requirements for the pressure of the liquid when it enters the patient's body. Since the infusion process takes a long time, the patient's receiving part will also move, but when the range of movement is too large, the infusion pressure at the receiving part will change, which will affect the infusion speed. When the infusion pressure is lower than the blood pressure, there will be problems with blood reflux.

[0003] In the prior art, a detection device equipped with a pressure sensor is used to perform real-time pressure detection on the infusion pipeline to ensure that the pressure of the infusion pipeline meets the infusion requirements. However, most pressure detection devices can only detect infusion pipelines of a single diameter. When the size of the infusion pipeline changes, it will be difficult to fix or the infusion pipeline will be over-squeezed, thereby affecting the accuracy of pipeline detection. Summary of the invention

[0004] The purpose of the present invention is to provide a medical infusion pipeline pressure detection device to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions: A medical infusion pipeline pressure detection device includes a shell, the inner cavity of the shell is provided with symmetrical movable grooves, the inner cavity of the movable grooves is provided with a positioning mechanism for clamping and positioning the infusion pipeline, the outside of the shell is provided with symmetrical movable grooves, the inner cavity of the movable grooves is movably connected with a push rod, one side wall of the shell is provided with a cavity, the inner cavity of the cavity is provided with a driving mechanism for driving the positioning mechanism and the push rod to move, when the driving mechanism rotates, the positioning mechanism moves horizontally toward the center position of the shell, when the driving mechanism moves down and rotates again, the push rod moves toward the position of the cavity.

[0006] As a further solution of the present invention: the positioning mechanism includes a clamping plate, which is slidably connected to the inner cavity of the movable groove, and the upper and lower ends of the inner cavity of the cavity are rotatably connected to drive gears, and the outside of the drive gear is provided with a drive rack that is centrally symmetrical about the center of the drive gear, the drive rack is meshed with the drive gear, and the end of the drive rack away from the drive gear is fixedly connected to the clamping plate.

[0007] As a further solution of the present invention: a driving rod is movably connected to the middle part of the inner cavity of the cavity, and the outside of the driving rod is slidably connected to a driving block with a symmetrical moving groove group. The upper and lower groups of driving blocks correspond to the symmetrical positions of driving gears. A plurality of driving grooves corresponding to the driving block card-engagement are opened in the middle part of the inner cavity of the driving gear, and a knob is fixedly connected to the lower end of the driving rod.

[0008] As a further solution of the present invention: a moving block is slidably connected to the top of the inner cavity of the movable groove, and the moving block is slidably connected to the shell, a groove is opened at the upper end of the moving block, and a driven rack is fixedly connected to the side of the inner cavity of the groove close to the splint, and a rotating rod is fixedly connected to the upper end of the push rod close to the side of the moving block, and a driven gear is fixedly connected to the outer wall of the rotating rod.

[0009] As a further solution of the present invention: the end of the rotating rod away from the push rod is rotatably connected to a slider, the slider is slidably connected to the shell, and the side walls of both sides of the shell are provided with sliding grooves that slidably cooperate with the slider, and the middle part of the end of the slider away from the rotating rod is elastically connected to a spherical block.

[0010] As a further solution of the present invention: the side of the splint away from the moving block is vertically slidably connected to a stretching plate, the end of the moving block away from the cavity is transmission-connected to a multi-stage telescopic rod close to the side of the splint, the side of the multi-stage telescopic rod away from the moving block is fixedly connected to an extension rod, the end of the extension rod away from the multi-stage telescopic rod is fixedly connected to a driven rod, the upper part of the splint is provided with a balancing groove that slides with the driven rod, the outer wall of the stretching plate is provided with a driven groove, the driven groove is composed of an oblique groove and a transverse groove, and the horizontal distance between the two ends of the oblique groove is the same as the horizontal length of the inner cavity of the groove.

[0011] As a further solution of the present invention: the symmetrical moving blocks located on the same side are commonly fixedly connected with a connecting rod on one side close to the cavity, the connecting rod is slidably connected to the shell, a roller is rotatably connected to the middle part of the inner cavity of the cavity, the diameter of the roller is larger than the diameter of the driving rod, and a traction rope is fixedly connected to the middle part of the side of the connecting rod away from the moving block, and the end of the traction rope away from the connecting rod is wrapped around the outer wall of the connecting rod.

[0012] As a further solution of the present invention: the outer wall of the driving rod is rotatably connected with a symmetrical disc, the disc is located below the driving gear, and the inner side wall of the cavity is slidably connected with a symmetrical limit block near the driving gear, a plurality of driving grooves are opened in the upper part of the inner cavity of the drum, the upper outer wall of the drum is fixedly connected with a ratchet, and one side of the lower end of the disc is rotatably connected with a one-way rotating plate.

[0013] As a further solution of the present invention: a symmetrical guide plate is fixedly connected to the upper end of the disc, and the guide plate is in contact with the outer wall of the limit block. A symmetrical guide rod is fixedly connected to the middle of the outer wall of the limit block. An L-shaped groove is provided on the outer wall of the guide plate, and the L-shaped groove is composed of a horizontal groove and a vertical groove. The outer wall of the guide rod is slidably matched with the horizontal groove and the vertical groove.

[0014] As a further solution of the present invention: a movable plate is vertically slidably connected to the middle part of the inner cavity of the driving rod, the driving block is slidably connected to the outer wall of the driving rod, a sliding rod is fixedly connected to the middle part of one end of the driving block close to the movable plate, the outer wall of the movable plate is slidably connected to the middle part of the driving block, and the outer wall of the movable plate is provided with a V-groove that slidably cooperates with the sliding rod.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The driving block and the driving slot are engaged with each other to drive the driving slot to rotate counterclockwise, thereby achieving the effect of driving the symmetrical clamping plate to clamp the infusion pipeline, and infusion pipelines of various sizes can be clamped and positioned. The push rod perpendicular to the clamping plate pushes the infusion pipeline close to the location of the cavity, so that the outer wall of the infusion pipeline can be in close contact with the pressure sensor, thereby facilitating the pressure sensor to accurately detect the pressure during infusion. The symmetrical stretching plate can reduce the bending degree of the infusion pipeline as much as possible, so that the contact area between the outer wall of the infusion pipeline and the pressure sensor is wider, thereby making the detection result more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0017] Figure 2 It is a schematic diagram of the structure of the shell in the present invention.

[0018] Figure 3 It is a schematic diagram of the structure of the splint in the present invention.

[0019] Figure 4 Schematic diagram of the internal structure of the cavity in the present invention.

[0020] Figure 5 For the present invention Figure 4 Schematic diagram of the structure of area A.

[0021] Figure 6 Schematic diagram of the internal structure of the driving rod in the present invention.

[0022] Figure 7 It is a schematic diagram of the structure of the driving slot in the present invention.

[0023] Figure 8 It is a schematic diagram of the structure of the stretching plate in the present invention.

[0024] Fig. 9 It is a schematic diagram of the internal structure of the sliding groove in the present invention.

[0025] Fig.10 It is a schematic diagram of the structure of the moving block in the present invention.

[0026] Fig.11 For the present invention Fig.10 Schematic diagram of the structure of area B.

[0027] In the figure: 1, shell; 2, clamping plate; 3, moving groove; 4, roller; 5, driving rod; 6, knob; 7, driving gear; 8, disc; 9, ratchet; 10, one-way swivel plate; 11, cavity; 12, limit block; 13, guide plate; 14, L-shaped groove; 15, guide rod; 16, driving block; 17, driving groove; 18, V-shaped groove; 19, driving rack; 20, stretching plate; 21, driven groove; 22, driven rod; 23, movable groove; 24, push rod; 25, moving block; 26, slider; 27, rotating rod; 28, driven gear; 29, driven rack; 30, multi-stage telescopic rod; 31, extension rod; 32, groove; 33, spherical block; 34, connecting rod; 35, traction rope; 36, movable plate; 37, sliding rod. DETAILED DESCRIPTION

[0028] See also Figure 1-3 In an embodiment of the present invention, a medical infusion pipeline pressure detection device includes a shell 1, a pressure sensor for detecting the pressure of the infusion pipeline is arranged in the middle of the inner cavity of the shell 1, a symmetrical movable groove 3 is opened in the inner cavity of the shell 1, and a positioning mechanism for clamping and positioning the infusion pipeline is arranged in the inner cavity of the movable groove 3. Symmetrical movable grooves 23 are opened on the outside of the shell 1, and the intervals between the symmetrical movable grooves 23 are smaller than the intervals between the symmetrical movable grooves 3. A push rod 24 is movably connected to the inner cavity of the movable groove 23. A cavity 11 is opened on one side wall of the shell 1, and a driving mechanism for driving the positioning mechanism and the push rod 24 to move is arranged in the inner cavity of the cavity 11. When the driving mechanism rotates, the positioning mechanism moves horizontally toward the center position of the shell 1. When the driving mechanism moves down and rotates again, the push rod 24 moves toward the position where the cavity 11 is located.

[0029] See also Figure 4 and Figure 7The positioning mechanism includes a clamping plate 2, which is slidably connected to the inner cavity of the movable groove 3. The upper and lower ends of the inner cavity of the cavity 11 are rotatably connected to the driving gear 7. The outer portion of the driving gear 7 is provided with a driving rack 19 which is centrally symmetrical about the center of the driving gear 7. The driving rack 19 is meshed with the driving gear 7. The end of the driving rack 19 away from the driving gear 7 is fixedly connected to the clamping plate 2, that is, when the driving gear 7 rotates counterclockwise, it will drive the symmetrical driving rack 19 to move, thereby driving the symmetrical clamping plate 2 horizontally close to the center of the driving gear 7. The middle part of the inner cavity of the cavity 11 is movably connected with a driving rod 5, which drives The outside of the rod 5 is slidably connected with three groups of symmetrical driving blocks 16 with movable grooves, wherein two groups of driving blocks 16 correspond to the positions of the symmetrical driving gears 7, and a driving groove 17 corresponding to the engagement with the driving blocks 16 is provided in the middle of the inner cavity of the driving gear 7, and a knob 6 is fixedly connected to the lower end of the driving rod 5. When the driving blocks 16 located on both sides of the outside of the driving rod 5 are engaged with the driving groove 17 in the inner cavity of the driving gear 7, the driving rod 5 is rotated by rotating the knob 6, and then the driving groove 17 is driven to rotate counterclockwise through the engagement of the driving block 16 and the driving groove 17, thereby achieving the effect of driving the symmetrical splint 2 to clamp the infusion pipeline.

[0030] See also Figure 9-11The top of the inner cavity of the movable groove 23 is slidably connected with a moving block 25, and the moving block 25 is slidably connected with the housing 1. The side wall of the moving block 25 is elastically connected to the side wall of the inner cavity of 1 through a spring. The upper end of the moving block 25 is provided with a groove 32, and the inner cavity of the groove 32 is fixedly connected with a driven rack 29 on the side close to the clamping plate 2. The upper end of the push rod 24 is fixedly connected with a rotating rod 27 on the side close to the moving block 25. The outer wall of the rotating rod 27 is fixedly connected with a driven gear 28. The position of the driven gear 28 corresponds to the driven rack 29, and the driven gear 29 is fixedly connected to the outer wall of the rotating rod 27. 8 and the driven rack 29 are meshed with each other, the end of the rotating rod 27 away from the push rod 24 is rotatably connected to the slider 26, the slider 26 is slidably connected to the housing 1, and the side walls of both sides of the housing 1 are provided with a slide groove that slidably cooperates with the slider 26, and the middle part of the end of the slider 26 away from the rotating rod 27 is elastically connected to a spherical block 33, and the top of the inner cavity of the slide groove is provided with a ball groove that is snap-fitted with the spherical block 33 on the side away from the cavity 11, that is, through the snap-fitting between the spherical block 33 elastically connected to the slider 26 and the ball groove, when the moving block 25 moves toward the cavity 11 The driven rack 29 drives the driven gear 28 to rotate, thereby driving the push rod 24 to rotate 270° through the rotating rod 27, so that the rotated push rod 24 and the clamping plate 2 are perpendicular to each other, and the spherical block 33 and the ball groove elastically limit the slider 26, so that when the rotating rod 27 moves relatively in the inner cavity of the groove 32, the positions of the rotating rod 27 and the slider 26 remain fixed, so that the push rod 24 will not move during the rotation process, and the push rod 24 is aligned with the driven gear 28 on the side of the inner cavity of the groove 32 away from the cavity 11. After the outer wall is contacted, the push rod 24 stops rotating, and the continued movement of the moving block 25 will push the rotating rod 27 and the sliding block 26 to move synchronously, thereby driving the push rod 24 perpendicular to the splint 2 to move toward the position of the cavity 11. The infusion pipeline is initially clamped and positioned through the symmetrical splint 2, and then the infusion pipeline is pushed close to the position of the cavity 11 through the push rod 24 perpendicular to the splint 2, so that the outer wall of the infusion pipeline can be in close contact with the pressure sensor, thereby facilitating the pressure sensor to accurately detect the pressure during infusion.

[0031] When the infusion pipeline is clamped and positioned by the symmetrical clamp 2, since the infusion pipeline itself is made of flexible material, it is inevitable that the middle part of the pipeline will bend when the clamp 2 clamps the infusion pipeline. This results in that part of the infusion pipeline cannot be in close contact with the pressure sensor when it is clamped and fixed, thereby causing errors in the detection results. In this solution, a stretching plate 20 that can move in a direction away from the center position of the shell 1 is provided on the clamp 2 to reduce the error caused by the bending of the pipeline. That is, when the degree of curvature of the pipeline is small, the symmetrical stretching plate 20 can straighten the bent pipeline, and when the degree of curvature of the pipeline is large, the symmetrical stretching plate 20 can reduce the degree of curvature of the pipeline, thereby improving the accuracy of pressure detection.

[0032] See also Figure 8 and Fig.11 The side of the splint 2 away from the moving block 25 is vertically slidably connected with the stretching plate 20, and the end of the moving block 25 away from the cavity 11 is transmission-connected to the side of the splint 2 with a multi-stage telescopic rod 30 (which utilizes the compression and stretching properties of the rod body and is composed of multiple telescopic components, and can achieve the amplitude change of each component by telescoping from the inside to the outside, thereby completing the amplitude change process). The side of the multi-stage telescopic rod 30 away from the moving block 25 is fixedly connected with an extension rod 31. The setting of the multi-stage telescopic rod 30 can ensure that after the splint 2 is close to the center position of the shell 1, the moving block 25 can still drive the extension rod 31 to move horizontally, and the extension rod 31 can be extended. The end of the rod 31 away from the multi-stage telescopic rod 30 is fixedly connected to the driven rod 22. The upper part of the clamp plate 2 is provided with a balancing groove that slides with the driven rod 22. The outer wall of the driven rod 22 slides with the balancing groove to limit the vertical height of the driven rod 22. At the same time, the end of the driven rod 22 away from the extension rod 31 passes through the side wall of the clamp plate 2 to drive the stretching plate 20 to move in a direction away from the center of the shell 1. The outer wall of the stretching plate 20 is provided with a driven groove 21. The driven groove 21 is composed of an oblique groove and a transverse groove. The plane where the end of the oblique groove away from the transverse groove is located is further away from the center of the shell 1. The horizontal distance between the two ends of the oblique groove The horizontal length of the inner cavity of the groove 32 is the same, that is, during the movement of the moving block 25, on the one hand, the push rod 24 is driven to rotate 270° in situ through the cooperation of the driven rack 29 and the driven gear 28, and on the other hand, the stretching plate 20 is driven to move in a direction away from the center position of the shell 1 through the cooperation of the multi-stage telescopic rod 30, the extension rod 31 and the driven rod 22 with the inclined groove, that is, during the rotation of the push rod 24, the symmetrical stretching plate 20 moves in a direction away from the center position of the shell 1, thereby stretching the infusion pipeline located between the symmetrical clamping plates 2 to a certain extent, so that the infusion pipeline located between the clamping plates 2 is balanced. Keep it in a vertical state as much as possible, and after the pipeline is stretched, the push rod 24 will move with the moving block 25 to push the pipeline toward the location of the cavity 11, and cooperate with the shell 1 to clamp and fix the infusion pipeline. At the same time, the shell 1 can be fixed on the infusion pipeline, so that the infusion pipeline and the pressure sensor are fitted as much as possible, and when the push rod 24 pushes the pipeline to move, the outer wall of the driven rod 22 moves relatively into the horizontal groove, so that the position of the stretching plate 20 remains high, that is, when the pipeline is close to the location of the cavity 11, the stretching plate 20 will continue to keep the pipeline in a stretched state.

[0033] By using the symmetrical clamping plates 2 with adjustable spacing, infusion pipelines of various diameters can be clamped and positioned. By rotating 270° and then pushing the symmetrical push rod 24 that pushes the pipeline close to the position of the cavity 11, it can be ensured that the outer wall of the infusion pipeline of any diameter can be in close contact with the pressure sensor as much as possible. Compared with the detection equipment with fixed spacing, this solution can be adapted to infusion pipelines of various diameters and can perform pressure detection on infusion pipelines of various sizes. At the same time, it will not cause excessive squeezing on the outer wall of the infusion pipeline with a larger diameter, resulting in unnecessary deformation of the infusion pipeline and affecting the detection result of the pressure sensor. By cooperating with the symmetrical stretching plate 20 that automatically moves away from the center position of the shell 1 when the push rod 24 rotates, the bending degree of the infusion pipeline can be reduced as much as possible, so that the contact surface between the outer wall of the infusion pipeline and the pressure sensor is wider, thereby making the detection result more accurate.

[0034] See also Figure 4 and Fig.10 The symmetrical moving blocks 25 located on the same side are fixedly connected to a connecting rod 34 on one side close to the cavity 11. The connecting rod 34 is slidably connected to the shell 1. The middle part of the inner cavity of the cavity 11 is rotatably connected to a roller 4. A plurality of driving grooves 17 are provided on the upper part of the inner cavity of the roller 4. The diameter of the roller 4 is larger than the diameter of the driving rod 5. A traction rope 35 is fixedly connected to the middle part of the side of the connecting rod 34 away from the moving block 25. One end of the traction rope 35 away from the connecting rod 34 is wound around the outer wall of the connecting rod 34. That is, when the roller 4 rotates counterclockwise, the traction rope 35 will continuously wind around the outer wall of the roller 4, thereby pulling the connecting rod 34 to move through the traction rope 35, and then driving the moving block 25 to move toward the position of the cavity 11, so as to achieve the driving push rod 24 to rotate 270° perpendicular to the splint 2, and at the same time drive the stretching plate 20 to stretch the infusion pipeline, so that the pipeline fits the pressure sensor, and the outer wall of the driving rod 5 is rotatably connected to a symmetrical disc 8, which is located below the driving gear 7. When the disc 8 is fitted with the driving gear 7, the upper and lower drive blocks 16 are both located in the drive groove 17 of the inner cavity of the driving gear 7, and the third drive block 16 is arranged below the disc 8 located above. When the driving rod 5 moves downward, the upper and lower drive blocks 16 are separated from the driving gear 7, and the third drive block 16 is engaged with the drive groove 17 at the upper part of the inner cavity of the roller 4, so that when the driving rod 5 moves downward and rotates again, only the roller 4 will rotate synchronously with the driving rod 5. , thereby the winding traction rope 35 drives the moving block 25 to move. When the upper end surface of the disc 8 fits with the lower end of the driving gear 7, the third group of driving blocks 16 are separated from the driving groove 17 in the inner cavity of the driving rod 5, and the upper and lower groups of driving blocks 16 are engaged with the driving groove 17 in the inner cavity of the driving gear 7, so that when the driving gear 7 rotates, the drum 4 remains stationary, that is, when the splint 2 moves, the moving block 25 remains stationary, and when the moving block 25 moves, the splint 2 remains stationary.

[0035] See also Figure 5 A symmetrical limit block 12 is slidably connected to a position near the driving gear 7 in the inner cavity side wall of the cavity 11, and one end of the limit block 12 close to the driving gear 7 is engaged with the teeth of the driving gear 7, and the end of the limit block 12 away from the driving gear 7 is elastically connected to the side wall of the cavity 11 through a spring. When the driving rod 5 drives the driving gear 7 to rotate, the teeth of the driving gear 7 contact with the limit block 12, pushing the limit block 12 away from the center position of the driving gear 7, and the limit block 12 will approach the outer wall of the driving gear 7 again under the action of the elastic force, so that during the rotation of the driving gear 7, the limit block 12 continuously makes horizontal reciprocating motion, thereby elastically limiting the driving gear 7, and the upper end of the disc 8 is fixedly connected with a symmetrical guide Toward plate 13, guide plate 13 is fitted with the outer wall of limit block 12, and a symmetrical guide rod 15 is fixedly connected to the middle of the outer wall of limit block 12. An L-shaped groove 14 is opened on the outer wall of guide plate 13, and the L-shaped groove 14 is composed of a horizontal groove and a vertical groove. When the disc 8 is fitted with the driving gear 7, the guide rod 15 is located at the connection between the horizontal groove and the vertical groove. At this time, when the limit block 12 is squeezed by the driving gear 7, it will drive the guide rod 15 to move in the horizontal groove. When the driving gear 7 is separated from the disc 8, the guide rod 15 will move relatively to the vertical groove. The vertical groove and the guide rod 15 cooperate to limit the position of the limit block 12 in the horizontal direction, so that the limit block 12 can fix the driving gear 7.

[0036] A ratchet 9 is fixedly connected to the outer wall of the upper end of the drum 4, and a one-way swivel plate 10 is rotatably connected to one side of the lower end of the disk 8. The middle part of the upper end of the one-way swivel plate 10 is elastically connected to the disk 8, and the one-way swivel plate 10 can only rotate in the direction away from the center of the disk 8. When the lower end of the disk 8 is in contact with the upper end of the driving rod 5, the ratchet 9 and the one-way swivel plate 10 are engaged with each other, so that the drum 4 can only rotate in the counterclockwise direction. After the drum 4 is driven to move the moving block 25 by the traction rope 35, the one-way swivel plate 10 will limit the clockwise rotation of the drum 4 by engaging with the ratchet 9, thereby preventing the moving block 25 from resetting under the action of the elastic force.

[0037] The middle part of the inner cavity of the driving rod 5 is vertically slidably connected with a movable plate 36, the top of the movable plate 36 is elastically connected to the top of the inner cavity of the driving rod 5 by a spring, the driving block 16 is slidably connected to the outer wall of the driving rod 5, the middle part of one end of the driving block 16 close to the movable plate 36 is fixedly connected with a slide bar 37, the outer wall of the movable plate 36 is slidably connected to the middle of the driving block 16, the outer wall of the movable plate 36 is provided with a V-shaped groove 18 that slidably cooperates with the slide bar 37, the middle part of the lower end of the movable plate 36 is fixedly connected to the rear pull ring, and the pull ring can be pulled to drive the movable plate 36 to move, and through the cooperation of the slide bar 37 and the V-shaped groove 18, it can be achieved that no matter the movable plate 36 moves up or down When the movable plate 36 is moved downward, the driving block 16 will shrink into the inner cavity of the driving rod 5, and then disengage from the inner cavity of the driving groove 17, so that the driving rod 5 can move in the vertical direction. When the movable plate 36 is in the initial position, the sliding rod 37 is located at the bending part of the inner cavity of the V-shaped groove 18. At this time, no matter whether the sliding rod 37 moves upward or downward relatively in the inner cavity of the V-shaped groove 18, it will move toward the center position of the movable plate 36, thereby driving the driving block 16 to shrink into the inner cavity of the driving rod 5. When the pull ring is pulled to drive the movable plate 36 to move downward, the sliding rod 37 moves relatively to the upper part of the inner cavity of the V-shaped groove 18, and the sliding rod 37 is in contact with the upper part of the inner cavity of the V-shaped groove 18. When the roller 4 is driven, the movable plate 36 that moves downward will drive the driving rod 5 to move downward through the distance between the sliding rod 37 and the driving block 16 until the disc 8 located above contacts the top of the roller 4. At this time, the position of the third group of driving blocks 16 also corresponds to the position of the driving groove 17 in the inner cavity of the roller 4. At this time, the pull ring is released, and the movable plate 36 is reset under the action of elastic force, and the driving block 16 extends out of the inner cavity of the driving rod 5 and is clamped in the driving groove 17 in the inner cavity of the roller 4. While the driving roller 4 rotates, the clamping of the driving block 16 and the driving groove 17 will also limit the position of the driving rod 5 in the vertical direction. When it is necessary to contact the clamping of the infusion pipeline, push it upward. The bottom of the movable plate 36 causes the driving block 16 to retract into the inner cavity of the driving rod 5 again, driving the driving rod 5 to move upward, and after the disc 8 located above is fitted with the driving gear 7, the movable plate 36 is released to reset under the action of elastic force, and the driving block 16 is driven to be engaged in the driving groove 17 in the inner cavity of the driving gear 7, and then rotated clockwise to drive the clamping plate 2 to reset. After the disc 8 is separated from the drum 4, the one-way rotating plate 10 is also separated from the ratchet 9, and the moving block 25 will reset under the action of elastic force, thereby first driving the push rod 24 to rotate 270°, and then driving the push rod 24 to move away from the direction of the cavity 11, and driving the stretching plate 20 to reset.

Claims

1. A medical infusion pipeline pressure detection device, comprising a housing, characterized in that: The inner cavity of the shell is provided with symmetrical movable grooves, and the inner cavity of the movable grooves is provided with a positioning mechanism for clamping and positioning the infusion pipeline. The outside of the shell is provided with symmetrical movable grooves, and the inner cavity of the movable grooves is movably connected with a push rod. A cavity is provided on one side wall of the shell, and the inner cavity of the cavity is provided with a driving mechanism for driving the positioning mechanism and the push rod to move. When the driving mechanism rotates, the positioning mechanism moves horizontally toward the center position of the shell. When the driving mechanism moves down and rotates again, the push rod moves toward the position of the cavity.

2. A medical infusion pipeline pressure detection device according to claim 1, characterized in that: The positioning mechanism includes a clamping plate, which is slidably connected to the inner cavity of the movable groove. The upper and lower ends of the inner cavity of the cavity are rotatably connected to drive gears. A driving rack is provided on the outside of the driving gear that is centrally symmetrical about the center of the driving gear. The driving rack is meshed with the driving gear, and the end of the driving rack away from the driving gear is fixedly connected to the clamping plate.

3. A medical infusion pipeline pressure detection device according to claim 2, characterized in that: A driving rod is movably connected to the middle part of the inner cavity of the cavity, and a driving block symmetrically connected to the movable groove group is slidably connected to the outside of the driving rod. The upper and lower groups of driving blocks correspond to the symmetrical positions of the driving gears. A plurality of driving grooves corresponding to the driving block card-engagement are opened in the middle part of the inner cavity of the driving gear, and a knob is fixedly connected to the lower end of the driving rod.

4. A medical infusion pipeline pressure detection device according to claim 3, characterized in that: A moving block is slidably connected to the top of the inner cavity of the movable groove, and the moving block is slidably connected to the shell. A groove is opened at the upper end of the moving block, and a driven rack is fixedly connected to the side of the inner cavity of the groove close to the splint, and a rotating rod is fixedly connected to the upper end of the push rod close to the side of the moving block, and a driven gear is fixedly connected to the outer wall of the rotating rod.

5. A medical infusion pipeline pressure detection device according to claim 4, characterized in that: The end of the rotating rod away from the push rod is rotatably connected to a slider, and the slider is slidably connected to the shell. The side walls of the shell are provided with sliding grooves that slidably cooperate with the slider. The middle part of the end of the slider away from the rotating rod is elastically connected to a spherical block.

6. A medical infusion pipeline pressure detection device according to claim 5, characterized in that: The side of the splint away from the moving block is vertically slidably connected to a stretching plate, the side of the moving block away from the cavity is transmission-connected to a multi-stage telescopic rod close to the splint, the side of the multi-stage telescopic rod away from the moving block is fixedly connected to an extension rod, the end of the extension rod away from the multi-stage telescopic rod is fixedly connected to a driven rod, the upper part of the splint is provided with a balancing groove that slides with the driven rod, the outer wall of the stretching plate is provided with a driven groove, the driven groove is composed of an oblique groove and a transverse groove, and the horizontal distance between the two ends of the oblique groove is the same as the horizontal length of the inner cavity of the groove.

7. A medical infusion pipeline pressure detection device according to claim 4, characterized in that: The symmetrical moving blocks located on the same side are commonly fixedly connected with a connecting rod on one side close to the cavity, and the connecting rod is slidably connected to the shell, and a roller is rotatably connected to the middle part of the inner cavity of the cavity, and the diameter of the roller is larger than the diameter of the driving rod, and a traction rope is fixedly connected to the middle part of the side of the connecting rod away from the moving block, and one end of the traction rope away from the connecting rod is wrapped around the outer wall of the connecting rod.

8. A medical infusion pipeline pressure detection device according to claim 7, characterized in that: The outer wall of the driving rod is rotatably connected with a symmetrical disc, and the disc is located below the driving gear. A symmetrical limit block is slidably connected to a position near the driving gear in the inner cavity side wall of the cavity. A plurality of driving grooves are opened in the upper part of the inner cavity of the drum. A ratchet is fixedly connected to the outer wall of the upper end of the drum, and a one-way rotating plate is rotatably connected to one side of the lower end of the disc.

9. A medical infusion pipeline pressure detection device according to claim 8, characterized in that: A symmetrical guide plate is fixedly connected to the upper end of the disc, and the guide plate is in contact with the outer wall of the limit block. A symmetrical guide rod is fixedly connected to the middle of the outer wall of the limit block. An L-shaped groove is opened on the outer wall of the guide plate, and the L-shaped groove is composed of a horizontal groove and a vertical groove. The outer wall of the guide rod is slidably matched with the horizontal groove and the vertical groove.

10. A medical infusion pipeline pressure detection device according to claim 3, characterized in that: A movable plate is vertically slidably connected to the middle part of the inner cavity of the driving rod, the driving block is slidably connected to the outer wall of the driving rod, a sliding rod is fixedly connected to the middle part of one end of the driving block close to the movable plate, the outer wall of the movable plate is slidably connected to the middle part of the driving block, and the outer wall of the movable plate is provided with a V-groove that slidably cooperates with the sliding rod.

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