A friction ranging device for a syringe pump

Abstract

This utility model discloses a sliding resistance ranging device for an injection pump. Relating to the field of sliding resistance ranging technology, the device includes a base and a protective mechanism positioned above the base to protect the internal structure of the device. A fixing component, also positioned above the base, is used to fix the injection pump to be tested. The protective mechanism includes a connecting frame with a transmission component on its inner wall. This protective mechanism, positioned above the base, protects the internal structure of the injection pump's sliding resistance ranging device, preventing external factors such as dust and debris from entering the device and avoiding contamination or damage to internal parts. The transmission component in the protective mechanism, by driving a crank rocker A, can adjust the coverage area of ​​the stretched protective cover, allowing for flexible adjustment of the protected area according to actual needs, thus improving the targeting and effectiveness of the protection.

Description

Technical Field

[0001] This utility model relates to the field of sliding resistance ranging technology, specifically a sliding resistance ranging device for an injection pump. Background Technology

[0002] Traditional syringe pumps consist of a stepper motor and its driver, a lead screw, and a support. Because they have a reciprocating lead screw and nut, they are also called lead screw pumps. The nut is connected to the piston of the syringe, which contains the medication, achieving high-precision, stable, and pulsation-free liquid delivery.

[0003] A sliding resistance ranging device for an injection pump, authorized by announcement number CN215296141U, includes a motor, a gear set, a lead screw, an injection pump mounting base, and a sliding potentiometer. The motor is driven by the input end of the gear set, and the output end of the gear set is driven by the lead screw. The injection pump mounting base is mounted on the lead screw. The motor drives the lead screw to rotate via the gear set, and the lead screw drives the injection pump mounting base to move linearly along the axial direction of the lead screw. The sliding resistance direction of the sliding potentiometer is the same as the axial direction of the lead screw. The brush of the sliding potentiometer is fixedly connected to the injection pump mounting base. The sliding potentiometer is connected to a host computer via a connecting line. This utility model uses a sliding potentiometer as a displacement data acquisition tool for calculating distance. Its structure is simpler and more reliable. Among existing high-precision sliding potentiometers, the error is extremely small, and the reliability is very high. It can further simplify the calculation method in the prior art, further reduce the cumulative error, and improve the accuracy of distance measurement.

[0004] As shown in the above-mentioned device, although the existing sliding rangefinder device for injection pumps has a simpler structure and higher reliability, with extremely small error and very high reliability among existing high-precision sliding potentiometers, it can further simplify the calculation method in the existing technology, further reduce the cumulative error, and improve the accuracy of range measurement. However, it lacks a protective mechanism for the instrument, and is easily affected by factors such as dust, water vapor, and external impacts during daily use, which can lead to component damage, performance degradation, and affect the accuracy of detection and the service life of the device. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides a sliding resistance ranging device for an injection pump, which solves the problems of existing technologies.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a sliding resistance ranging device for an injection pump, comprising a base, and further comprising:

[0007] A protective mechanism, located above the base, is used to protect the internal structure of the sliding resistance ranging device of the injection pump.

[0008] A fixing component, located above the base, is used to fix the injection pump to be tested.

[0009] The protective mechanism includes a connecting frame, the inner wall of which is provided with a transmission component. The connecting frame is connected to a crank rocker A via the transmission component. One end of the crank rocker A is slidably connected to a movable slide. The outer wall of the movable slide is fixedly connected to a connecting groove plate. A tension protective cover is provided at the top of the connecting groove plate. The transmission component adjusts the coverage area of ​​the tension protective cover by driving the crank rocker A.

[0010] Preferably, the transmission assembly includes a grooved plate A, which is fixedly installed on the inner wall of the connecting frame. A bidirectional lead screw is fixedly installed on the inner wall of the grooved plate A. A drive motor A is provided at one end of the bidirectional lead screw. Two movable hinge seats are threadedly connected to the outer wall of the bidirectional lead screw. A transmission shaft is fixedly connected to one end of the grooved plate A. The transmission shaft is used to connect the drive motor A for kinetic energy transmission.

[0011] Preferably, the fixing component includes a mounting base disposed above the base. A rotating shaft is located at the bottom of the mounting base, and a drive seat is located at the top of the rotating shaft. The mounting base is fixedly connected to the outer wall of the drive seat, and a grooved plate B is fixedly connected to the top of the mounting base. A sliding groove is formed on the inner wall of the grooved plate B, and a limiting ring is formed on the outer wall of the grooved plate B. A rotating plate is rotatably connected to the inner wall of the mounting base. The bottom end of the rotating plate is fixedly connected to the output end of the drive seat, and a limiting sliding groove is formed on the outer wall of the rotating plate. A limiting rod is slidably connected to the inner wall of the limiting sliding groove, and a sliding clamp is fixedly connected to the top of the limiting rod. The sliding clamp is slidably connected to the inner wall of the sliding groove.

[0012] Preferably, a testing box is fixedly installed at the top of the base, and an observation window is fixedly installed on the outer wall of the testing box for observing the interior of the testing box. The outer wall of the testing box is connected and fixedly connected to the connecting frame, and a sealing plate is fixedly connected to the top of the base for fitting the connecting groove plate for sealing.

[0013] Preferably, a servo motor is fixedly connected to one end of the detection box, and the output end of the servo motor is connected to a gear shaft A via a coupling. A grating disk is fixedly installed on the outer wall of the gear shaft A, and a gear shaft B meshes with the outer wall of the gear shaft A. A gear A is fixedly connected to one end of the gear shaft B, and the gear A is rotatably connected to the inner wall of the detection box. A gear B meshes with the outer wall of the gear A, and a one-way lead screw is fixedly connected to one end of the gear B.

[0014] Preferably, a sliding plate is fixedly connected to the inner wall of the detection box, a slide block is slidably connected to the outer wall of the sliding plate, the slide block is threaded to the outer wall of the one-way lead screw, a connecting box is fixedly connected to the bottom end of the slide block, a drive motor B is fixedly connected to one end of the connecting box, the inner wall of the connecting box is fixedly connected to the mounting base, a straight sliding potentiometer is fixedly installed on the inner wall of the detection box, and a brush is fixedly connected to the outer wall of the slide block.

[0015] This invention provides a sliding resistance ranging device for an injection pump. Compared with the prior art, it has the following advantages:

[0016] 1. The sliding resistance measuring device of the injection pump is equipped with a protective mechanism. The protective mechanism is located above the base and can protect the internal structure of the sliding resistance measuring device of the injection pump. It can prevent external factors such as dust and debris from entering the device and avoid contamination or damage to internal parts. The transmission component in the protective mechanism can adjust the coverage of the stretching protective cover by driving the crank rocker A. The protective area can be flexibly adjusted according to actual needs to improve the targeting and effectiveness of the protection.

[0017] 2. The sliding resistance ranging device of the injection pump is equipped with a fixing component, which includes a mounting base, a rotating shaft, and a drive base. Through the cooperation of the rotating shaft and the drive base, the mounting base can be easily installed on the base and can provide stable support for the subsequent fixing of the injection pump. The rotating plate is fixed to the output end of the drive base. When the rotating plate rotates, it can drive the sliding clamp to slide in the groove of the groove plate B. Thus, the fixing angle and position can be flexibly adjusted according to the shape and size of different injection pumps, improving the versatility and adaptability of the device. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a side view of the overall structure of this utility model;

[0020] Figure 3 This is a cross-sectional view of the overall structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the protective mechanism of this utility model;

[0022] Figure 5 This is a schematic diagram of the transmission component of this utility model;

[0023] Figure 6 This is a schematic diagram of the fixing component of this utility model;

[0024] Figure 7 This is a cross-sectional view of the fixing component of this utility model.

[0025] In the diagram: 1. Base; 2. Detection box; 3. Protective mechanism; 31. Connecting frame; 32. Transmission assembly; 321. Groove plate; 322. Two-way lead screw; 323. Movable hinge seat; 324. Drive shaft; 33. Crank rocker A; 34. Tension protective cover; 35. Movable slide; 36. Connecting slot plate; 4. Observation window; 5. Sealing plate; 6. Servo motor; 7. Fixing assembly; 71. Rotating shaft; 72. Mounting seat; 73. Groove plate; 74. Limiting ring; 75. Rotating plate; 76. Limiting slide groove; 77. Limiting rod; 78. Sliding clamp; 79. Drive seat; 8. Gear shaft A; 9. Grating disk; 10. Gear shaft B; 11. Gear A; 12. Gear B; 13. Lead screw; 14. Connecting box; 15. Drive motor; 16. Straight slide potentiometer. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] See Figures 1-7 This utility model provides the following two technical solutions:

[0028] First embodiment: A sliding resistance ranging device for an injection pump, including a base 1, and further comprising:

[0029] Protective mechanism 3, which is located above the base 1, is used to protect the internal structure of the sliding resistance ranging device of the injection pump.

[0030] Fixing component 7, located above base 1, is used to fix the injection pump to be tested;

[0031] A detection box 2 is fixedly installed at the top of the base 1. An observation window 4 is fixedly installed on the outer wall of the detection box 2 for observing the interior of the detection box 2. The outer wall of the detection box 2 is connected and fixed to the connecting frame 31. A sealing plate 5 is fixedly connected to the top of the base 1 for sealing the connecting groove plate 36. A servo motor 6 is fixedly connected to one end of the detection box 2. The output end of the servo motor 6 is connected to a gear shaft A8 through a coupling. A grating disk 9 is fixedly installed on the outer wall of the gear shaft A8. A gear shaft B10 meshes with the outer wall of the gear shaft A8. A gear A11 is fixedly connected to one end of the gear shaft B10. Gear A11 is rotatably connected to the inner wall of the detection box 2. Gear B12 meshes with the outer wall of gear A11. One end of gear B12 is fixedly connected to a one-way lead screw 13. A slide plate is fixedly connected to the inner wall of the detection box 2. A slide block is slidably connected to the outer wall of the slide plate. The slide block is threadedly connected to the outer wall of the one-way lead screw 13. A connecting box 14 is fixedly connected to the bottom end of the slide block. A drive motor B15 is fixedly connected to one end of the connecting box 14. The inner wall of the connecting box 14 is connected and fixedly fixed to the mounting base 72. A sliding potentiometer 16 is fixedly installed on the inner wall of the detection box 2. A brush is fixedly connected to the outer wall of the slide block.

[0032] The protective mechanism 3 includes a connecting frame 31. A transmission component 32 is provided on the inner wall of the connecting frame 31. The connecting frame 31 is connected to a crank rocker A33 through the transmission component 32. One end of the crank rocker A33 is slidably connected to a movable slide 35. A connecting groove plate 36 is fixedly connected to the outer wall of the movable slide 35. A tension protective cover 34 is provided at the top of the connecting groove plate 36. The transmission component 32 adjusts the coverage area of ​​the tension protective cover 34 by driving the crank rocker A33.

[0033] The transmission assembly 32 includes a grooved plate A321, which is fixedly installed on the inner wall of the connecting frame 31. A bidirectional lead screw 322 is fixedly installed on the inner wall of the grooved plate A321. A drive motor A is provided at one end of the bidirectional lead screw 322. Two movable hinge seats 323 are threadedly connected to the outer wall of the bidirectional lead screw 322. A transmission shaft 324 is fixedly connected to one end of the grooved plate A321. The transmission shaft 324 is used to connect the drive motor A for kinetic energy transmission.

[0034] The sliding resistance measuring device of the injection pump is equipped with a protective mechanism 3, which is located above the base 1. The protective mechanism 3 can protect the internal structure of the sliding resistance measuring device of the injection pump, preventing external factors such as dust and debris from entering the device and avoiding contamination or damage to internal parts. The transmission component 32 in the protective mechanism 3 can adjust the coverage of the stretch protective cover 34 by driving the crank rocker A33. The protective area can be flexibly adjusted according to actual needs, improving the targeting and effectiveness of the protection.

[0035] The second embodiment differs from the first embodiment in that: the fixing component 7 includes a mounting base 72, which is disposed above the base 1. A rotating shaft 71 is disposed at the bottom end of the mounting base 72, and a drive seat 79 is disposed at the top end of the rotating shaft 71. The mounting base 72 is fixedly connected to the outer wall of the drive seat 79, and a grooved plate B73 is fixedly connected to the top end of the mounting base 72. A sliding groove is formed on the inner wall of the grooved plate B73, and a limiting ring 74 is formed on the outer wall of the grooved plate B73. A rotating plate 75 is rotatably connected to the inner wall of the mounting base 72. The bottom end of the rotating plate 75 is fixedly connected to the output end of the drive seat 79, and a limiting sliding groove 76 is formed on the outer wall of the rotating plate 75. A limiting rod 77 is slidably connected to the inner wall of the limiting sliding groove 76, and a sliding clamp 78 is fixedly connected to the top end of the limiting rod 77. The sliding clamp 78 is slidably connected to the inner wall of the sliding groove.

[0036] The sliding resistance ranging device of the injection pump is equipped with a fixing component 7, which includes a mounting base 72, a rotating shaft 71, a drive base 79, etc. Through the cooperation of the rotating shaft 71 and the drive base 79, the mounting base 72 can be easily installed on the base 1, and can provide stable support for the subsequent fixing of the injection pump. The rotating plate 75 is fixed to the output end of the drive base 79. When the rotating plate 75 rotates, it can drive the sliding clamp 78 to slide in the groove of the groove plate B73, so that the fixing angle and position can be flexibly adjusted according to the shape and size of different injection pumps, thereby improving the versatility and adaptability of the device.

[0037] Furthermore, all content not described in detail in this specification is existing technology known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited; conventional equipment can be used.

[0038] When the syringe pump sliding resistance ranging device is working, the syringe pump to be tested is placed on the mounting base 72 of the fixed component 7. The drive base 79 drives the rotating plate 75 to rotate. The limiting slide groove 76 on the rotating plate 75 causes the sliding clamp 78 to slide in the slide groove of the groove plate B73 through the limiting rod 77. With the help of the limiting ring 74, the syringe pump is clamped and fixed at multiple angles. In the protective mechanism 3, the drive motor A drives the bidirectional lead screw 322 to rotate through the transmission shaft 324. The two movable hinge seats 323 on the bidirectional lead screw 322 move towards each other or in opposite directions in the groove plate A321. The movable slide 35 is pulled by the crank rocker A33, so that the connecting groove plate 36 drives the tension protective cover 34 to extend and retract, adjust the coverage range, and protect the internal structure. Inside the detection box 2 at the top of the base 1, the servo motor 6 drives the gear shaft A8 to rotate, which in turn drives the grating disk 9. At the same time, through the gear shaft B10, gear A11, and gear B12, the one-way lead screw 13 rotates, which drives the slide to slide on the slide plate. The brush on the slide moves on the straight sliding potentiometer 16 to perform distance measurement. The observation window 4 facilitates observation of the situation inside the detection box 2. The sealing plate 5 cooperates with the connecting slot plate 36 to achieve closure.

[0039] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A slip range finder device for a syringe pump comprising a base (1), characterized in that, Also includes: The protective mechanism (3) is located above the base (1) and is used to protect the internal structure of the sliding resistance ranging device of the injection pump. A fixing component (7) is disposed above the base (1) for fixing the injection pump to be tested; The protective mechanism (3) includes a connecting frame (31), the inner wall of which is provided with a transmission component (32). The connecting frame (31) is connected to a crank rocker A (33) through the transmission component (32). One end of the crank rocker A (33) is slidably connected to a movable slide (35). The outer wall of the movable slide (35) is fixedly connected to a connecting groove plate (36). The top of the connecting groove plate (36) is provided with a tension protective cover (34). The transmission component (32) adjusts the coverage of the tension protective cover (34) by driving the crank rocker A (33).

2. The sliding resistance ranging device for an injection pump according to claim 1, characterized in that: The transmission assembly (32) includes a grooved plate A (321), which is fixedly installed on the inner wall of the connecting frame (31). A bidirectional lead screw (322) is fixedly installed on the inner wall of the grooved plate A (321). A drive motor A is provided at one end of the bidirectional lead screw (322). Two movable hinge seats (323) are threadedly connected to the outer wall of the bidirectional lead screw (322). A transmission shaft (324) is fixedly connected to one end of the grooved plate A (321). The transmission shaft (324) is used to connect the drive motor A for kinetic energy transmission.

3. The sliding resistance ranging device for an injection pump according to claim 1, characterized in that: The fixing component (7) includes a mounting base (72), which is disposed above the base (1). A rotating shaft (71) is disposed at the bottom end of the mounting base (72), and a drive seat (79) is disposed at the top end of the rotating shaft (71). The mounting base (72) is fixedly connected to the outer wall of the drive seat (79). A grooved plate B (73) is fixedly connected to the top end of the mounting base (72). A sliding groove is formed on the inner wall of the grooved plate B (73). A limiting ring (74) is provided on the outer wall of the mounting base (72). A rotating plate (75) is rotatably connected to the inner wall of the mounting base (72). The bottom end of the rotating plate (75) is fixedly connected to the output end of the drive base (79). A limiting groove (76) is provided on the outer wall of the rotating plate (75). A limiting rod (77) is slidably connected to the inner wall of the limiting groove (76). A sliding clamp (78) is fixedly connected to the top end of the limiting rod (77). The sliding clamp (78) is slidably connected to the inner wall of the groove.

4. The sliding resistance ranging device for an injection pump according to claim 1, characterized in that: A test box (2) is fixedly installed on the top of the base (1). An observation window (4) is fixedly installed on the outer wall of the test box (2) for observing the interior of the test box (2). The outer wall of the test box (2) is connected and fixed to the connecting frame (31). A sealing plate (5) is fixedly connected to the top of the base (1) for fitting the connecting groove plate (36) for sealing.

5. The sliding resistance ranging device for an injection pump according to claim 4, characterized in that: One end of the detection box (2) is fixedly connected to a servo motor (6). The output end of the servo motor (6) is connected to a gear shaft A (8) via a coupling. A grating disk (9) is fixedly installed on the outer wall of the gear shaft A (8). A gear shaft B (10) meshes with the outer wall of the gear shaft A (8). A gear A (11) is fixedly connected to one end of the gear shaft B (10). The gear A (11) is rotatably connected to the inner wall of the detection box (2). A gear B (12) meshes with the outer wall of the gear A (11). A one-way lead screw (13) is fixedly connected to one end of the gear B (12).

6. The sliding resistance ranging device for an injection pump according to claim 4, characterized in that: The inner wall of the detection box (2) is fixedly connected to a sliding plate, and the outer wall of the sliding plate is slidably connected to a slide block. The slide block is threadedly connected to the outer wall of a one-way lead screw (13). The bottom end of the slide block is fixedly connected to a connecting box (14). One end of the connecting box (14) is fixedly connected to a drive motor B (15). The inner wall of the connecting box (14) is fixedly connected to a mounting base (72). The inner wall of the detection box (2) is fixedly installed with a sliding potentiometer (16), and the outer wall of the slide block is fixedly connected to a brush.

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