Intravenous injection practice support for nursing teaching

Abstract

The invention belongs to the technical field of nursing teaching, and relates to an intravenous injection practice support for nursing teaching, which comprises a bottom plate and an operation table, the bottom of the operating table is supported on the bottom plate through a lifting mechanism, at least two groups of binding belts are arranged on the operating table, and the two groups of binding belts are used for fixing a practicing arm on the operating table; a sliding adjusting mechanism is arranged at the bottom of the operation table and used for driving the binding belt to be adjusted on the operation table in a sliding mode. A locking mechanism is arranged on the sliding adjusting mechanism and used for locking and adjusting the binding belt. The exercise support can bind and fix exercise arms of different sizes, and therefore the use range and the use scene of the exercise support can be widened.

Description

Technical Field

[0001] The invention belongs to the technical field of nursing teaching, and in particular relates to an intravenous injection practice bracket for nursing teaching. Background Art

[0002] Intravenous injection is a medical method that directly injects sterile liquid medicine, blood, nutrient solution and other liquid substances into the vein. Intravenous injection can be divided into short-term and continuous. Short-term intravenous injection is usually injected directly into the vein with a syringe, which is the common "injection"; continuous intravenous injection is implemented by intravenous drip, commonly known as "drip".

[0003] In the above processes, the injection needle needs to be accurately inserted into the blood vessel, so medical staff need to be able to accurately insert the needle into the subcutaneous tissue and then into the vein; therefore, medical staff need to accumulate a lot of experience to perform intravenous injections accurately and quickly, but they cannot experiment on patients. In order to improve the injection success rate of medical staff, models specifically used for intravenous injection practice have emerged.

[0004] Although the existing practice stands can support and fix the practice arms used for intravenous teaching, making it convenient for nursing staff to perform intravenous injection practice, the belts on the practice stands used to restrain or fix the practice arms are mostly fixed on the platform body. Therefore, the existing practice stands cannot restrain and fix practice arms of different sizes. Therefore, when nursing staff need to perform intravenous injection practice according to practice arms of different sizes, they need to frequently replace the practice stands, which will affect the use scope and usage scenarios of the existing practice stands. Summary of the invention

[0005] In order to solve the above technical problems, the present invention is achieved through the following technical solutions: The present invention discloses an intravenous injection practice support for nursing teaching, comprising a base plate and an operating table; the bottom of the operating table is supported on the base plate by a lifting mechanism, at least two groups of restraint belts are arranged on the operating table, and the two groups of restraint belts are used to fix the practice arm on the operating table; a sliding adjustment mechanism is arranged at the bottom of the operating table, and the sliding adjustment mechanism is used to drive the restraint belt to slide and adjust on the operating table; a locking mechanism is arranged on the sliding adjustment mechanism, and the locking mechanism is used to lock and adjust the restraint belt.

[0006] Furthermore, the sliding adjustment mechanism includes a support block, a driving screw, a screw slider, a connecting rod and a locking slider. Two support blocks are fixedly provided on the bottom surface of the operating table, and a driving screw is rotatably installed between the two support blocks through a bearing. A screw slider is sleeved on the driving screw through a ball nut. Connecting rods are fixedly provided on both side surfaces of the screw slider, and a locking slider is fixedly provided at the end of each connecting rod. Connecting rods are also fixedly provided on both side surfaces of the support block located on the right side of the bottom surface of the operating table, and a locking slider is also fixedly provided at the end of the connecting rod. Two through long grooves are opened on the operating table, and the front and rear symmetrical locking sliders correspond to the symmetrically opened through long grooves, and the two groups of the locking sliders are respectively connected to the two restraining belts.

[0007] Furthermore, the locking mechanism includes a plastic rack, a meshing gear, a rotating shaft and a limit block. A meshing cavity is formed inside the locking slider, and a movable square hole is penetrated through the upper and lower cavity walls of the meshing cavity. The movable square hole corresponds to the through long groove. The two ends of the restraining belt are connected with plastic racks. The free end of the plastic rack passes through the through long groove and the movable square hole and extends into the meshing cavity, and the free end of the plastic rack extends out of the bottom of the locking slider. A meshing gear is rotatably installed in the meshing cavity through a rotating shaft. The meshing gear meshes with the teeth of the plastic rack located in the meshing cavity for transmission. A limit block is fixed to the free end of the plastic rack, and the size of the limit block is larger than the size of the movable square hole.

[0008] Furthermore, the locking mechanism also includes a sleeve, a guide rod, a capsule-type rod and an air guide tube. The corresponding end faces of the two rotating shafts located on the same side are respectively connected to the sleeve and the guide rod. The tail end of the guide rod is connected to the capsule-type rod, and the capsule-type rod is inserted into the sleeve, and its tail end is connected to the bottom of the sleeve. An air guide tube is inserted into one of the rotating shafts for rotation, and the air guide tube is connected to the capsule-type rod.

[0009] Furthermore, a hidden groove is provided in the groove wall of the through long groove, and two sections of extrusion strips are slidably arranged in the hidden groove, and the teeth on the side surfaces of the two sections of the extrusion strips correspond to the two plastic racks in the same through long groove. An electric push rod is fixed at the groove bottom of the through long groove, and the output rod of the electric push rod is connected to the extrusion strip.

[0010] Furthermore, the width of the movable square hole is greater than the thickness of the plastic rack, the inner cavity wall of the meshing cavity is connected to a limit push plate through a spring, and the limit push plate is in contact with the back side of the plastic rack.

[0011] Furthermore, the lifting mechanism includes a fixed cylinder, a lifting rod, a locking bolt and a connecting cap. The fixed cylinder is vertically fixed on the base plate, and a lifting rod is inserted in each fixed cylinder. The lifting rod is connected to the fixed cylinder by a locking bolt, and the top end of the lifting rod is connected to the operating table by a connecting cap.

[0012] Furthermore, a nut piece is threadedly connected to the locking bolt, and the inner end face of the nut piece is connected to a plug-in sleeve, a vertical guide groove is vertically opened on the wall of the fixing cylinder, and a plurality of notch holes are opened on the outer groove wall of the vertical guide groove, and the notch holes correspond to the plug-in sleeve, and the rod body of the locking bolt passes through the vertical guide groove and is connected to the lifting rod.

[0013] The present invention has the following beneficial effects: 1. The present invention arranges two restraints on the operating table, and the restraint on the left side is connected to the sliding adjustment mechanism, so that the sliding adjustment mechanism can drive the restraint on the left side to slide on the operating table, so as to facilitate the adjustment of the distance between the restraints on both sides, and the fixed restraint on the right side can position the placed training arm, and then the locking mechanism can drive the two restraints to lock the training arm to the operating table, so as to facilitate the nursing staff to perform intravenous injection training on training arms of different sizes on the same training bracket, so that the training bracket of the present invention can restrain and fix training arms of different sizes, thereby improving the use scope and use scenarios of the training bracket.

[0014] 2. The present invention meshes the two ends of the restraint belt with the meshing gear rotating in the locking slider through the plastic rack. The rotation of the meshing gear can drive the two ends of the restraint belt to be locked and loosened on the operating table through the plastic rack, so as to facilitate the locking and fixing of exercise arms of different sizes. When the locking slider slides, the plastic rack in the meshing cavity will drive the restraint belt on the left side to slide in the long groove, so as to facilitate the adjustment of the position of the restraint belt on the left side, and will not affect the meshing transmission of the meshing gear and the plastic rack, so as to lock and fix the restraint belt after the sliding adjustment.

[0015] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of the overall structure of the embodiment disclosed in the present invention; Figure 2 It is a structural schematic diagram of the training arm installed on the operating table according to the disclosed embodiment of the present invention; Figure 3 It is a structural schematic diagram of the bottom surface of the operating table according to the embodiment disclosed in the present invention; Figure 4 A cross-sectional view of an operating table according to an embodiment of the present invention; Figure 5 For the present invention Figure 4 A partial enlarged view of the middle part; Figure 6 It is a schematic structural diagram of the lifting mechanism of the disclosed embodiment of the present invention.

[0018] In the figure: 1. bottom plate; 2. Operation table; 21. Long through slot; 22. Hidden slot; 3. Restraint belt; 4. Exercise your arms; 5. Sliding adjustment mechanism; 51. Support block; 52. Driving screw; 53. Screw slider; 531. Connecting rod; 54. Locking slider; 541. Engaging cavity; 542. Moving square hole; 55. Extrusion bar; 56. Electric push rod; 57. Limit push plate; 6. Locking mechanism; 61. Plastic rack; 62. Meshing gear; 63. Rotating shaft; 64. Limit block; 65. Sleeve; 66. Guide rod; 67. Capsule rod; 68. Air guide tube; 7. Lifting mechanism; 71. Fixing tube; 711. Vertical guide groove; 712. Notch hole; 72. Lifting rod; 73. Locking bolt; 74. Connecting cap; 75. Nut; 76. Plug sleeve. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] In the description of the present invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inside", "all around" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0021] See also Figure 1-Figure 6As shown, the present invention is an intravenous injection practice stand for nursing teaching, comprising a base plate 1 and an operating table 2; the bottom of the operating table 2 is supported on the base plate 1 by a lifting mechanism 7, and at least two groups of restraints 3 are arranged on the operating table 2, and the two groups of restraints 3 are used to fix the practice arm 4 on the operating table 2; a sliding adjustment mechanism 5 is arranged at the bottom of the operating table 2, and the sliding adjustment mechanism 5 is used to drive the restraints 3 to slide and adjust on the operating table 2; a locking mechanism 6 is arranged on the sliding adjustment mechanism 5, and the locking mechanism 6 is used to lock and adjust the restraints 3; Specifically, the present invention sets two restraint belts 3 on the operating table 2, and the restraint belt 3 on the left is connected to the sliding adjustment mechanism 5. When it is necessary to perform intravenous injection training on the training arm 4 similar to an adult, the sliding adjustment mechanism 5 will drive the restraint belt 3 on the left to slide to the left on the operating table 2, so that the distance between the two restraint belts 3 is increased, and then the larger training arm 4 is inserted into the two adjusted restraint belts 3, and then the locking mechanism 6 is controlled to work, so that it drives the two restraint belts 3 to restrain and fix the training arm 4 to the operating table 2, thereby facilitating the nursing staff to perform intravenous injection training, and when it is necessary to perform intravenous injection training on the training arm similar to a child, the locking mechanism 6 is controlled to work, so that it drives the two restraint belts 3 to restrain and fix the training arm 4 to the operating table 2, thereby facilitating the nursing staff to perform intravenous injection training. When practicing intravenous injection, the sliding adjustment mechanism 5 drives the left restraining belt 3 to slide to the right, so that the distance between the two restraining belts 3 is reduced, and the nursing staff can put the small-sized practice arm 4 between the two reduced restraining belts 3, and then the locking mechanism 6 can drive the restraining belt 3 to lock the small-sized practice arm 4 to the operating table 2, so that the nursing staff can practice intravenous injection on practice arms 4 of different sizes on the same practice bracket, so that the practice bracket of the present invention can restrain and fix practice arms 4 of different sizes, thereby improving the use range and use scenarios of the practice bracket.

[0022] In the scheme designed by the present invention, the sliding adjustment mechanism 5 includes a support block 51, two support blocks 51 are fixedly provided on the bottom surface of the operating table 2, and a driving screw 52 is rotatably installed between the two support blocks 51 through a bearing, a screw slider 53 is sleeved on the driving screw 52 through a ball nut, connecting rods 531 are fixedly provided on both sides of the screw slider 53, and a locking slider 54 is fixedly provided at the end of each connecting rod 531, connecting rods 531 are also fixedly provided on both sides of the support block 51 located on the right side of the bottom surface of the operating table 2, and a locking slider 54 is also fixedly provided at the end of the connecting rod 531, two through long grooves 21 are provided on the operating table 2, the front and rear symmetrical locking sliders 54 correspond to the symmetrically provided through long grooves 21, and the two groups of the locking sliders 54 are respectively connected to the two restraint belts 3; Specifically, the output shaft of the servo motor fixed on the outer side of one of the support blocks 51 is connected to the driving screw 52. At this time, the operation of the servo motor will drive the screw slider 53 to slide along the length direction of the bottom surface of the operating table 2 through the driving screw 52, ​​and the sliding screw slider 53 will drive the locking slider 54 to slide through the connecting rod 531, and the sliding locking slider 54 is connected to the left side of the restraining belt 3. Therefore, the sliding locking slider 54 will drive the left side of the restraining belt 3 to slide on the upper surface of the operating table 2. Since the restraining belt 3 on the right side is connected to the fixed support block 51 on the right side through another set of locking sliders 54 and the connecting rod 531, the restraining belt 3 on the left side can slide on the upper surface of the operating table 2, and the restraining belt 3 on the right side in a fixed state can be restrained to the connection between the palm and the arm of the training arm 4, so that the training arms 4 of different sizes can be positioned, and the sliding restraining belt 3 on the left side can be restrained to the arm according to the size of the training arm 4, so that the training bracket can accurately restrain and fix the training arms 4 of different sizes.

[0023] In the scheme designed by the present invention, the locking mechanism 6 includes a plastic rack 61, a meshing cavity 541 is formed inside the locking slider 54, and a movable square hole 542 is formed through the upper and lower cavity walls of the meshing cavity 541, and the movable square hole 542 corresponds to the through long groove 21, and the two ends of the restraining belt 3 are connected with the plastic rack 61, and the free end of the plastic rack 61 passes through the through long groove 21 and the movable square hole 542 and extends into the meshing cavity 541, and the free end of the plastic rack 61 extends out of the bottom of the locking slider 54, and a meshing gear 62 is rotatably installed in the meshing cavity 541 through a rotating shaft 63, and the meshing gear 62 is meshed with the teeth of the plastic rack 61 located in the meshing cavity 541 for transmission, and a limit block 64 is fixed at the free end of the plastic rack 61, and the size of the limit block 64 is larger than the size of the movable square hole 542; Specifically, when the training arm 4 is placed on the two adjusted restraint belts 3 and the operating table 2, the servo motor fixed on the end face of the locking slider 54 is controlled to work, so that it drives the meshing gear 62 located in the meshing cavity 541 to rotate through the rotating shaft 63. Since the side of the meshing gear 62 is meshed with the plastic rack 61, the plastic rack 61 will move downward in the meshing cavity 541 through the moving square hole 542, and then the plastic rack 61 will pull the restraint belt 3 to move upward in the long groove 21 opened in the left and right length directions, so as to achieve the locking of the restraint belt 3, and then facilitate the fixing of the training arm 4 to the operating table 2. When the meshing gear 62 rotates in the opposite direction, causing the plastic rack 61 to move upward in the meshing cavity 541, the restraint belt 3 will be in a The plastic rack 61 is in a relaxed state, which makes it easy for the nursing staff to remove the training arm 4 from the operating table 2. When the locking slider 54 slides, the plastic rack 61 in the meshing cavity 541 will drive the left restraint 3 to slide in the through-long groove 21, which makes it easy to adjust the position of the left restraint 3 without affecting the meshing transmission between the meshing gear 62 and the plastic rack 61. The restraint 3 after the sliding adjustment is locked and fixed. The design of the limit block 64 can prevent the free end of the plastic rack 61 from entering the meshing cavity 541 when the plastic rack 61 moves upward in the meshing cavity 541, which will affect the normal meshing transmission between the meshing gear 62 and the plastic rack 61, thereby affecting the locking and fixing effect of the restraint 3 on the training arm 4.

[0024] In the solution designed by the present invention, the locking mechanism 6 further includes a sleeve 65, and the corresponding end surfaces of the two rotating shafts 63 on the same side are respectively connected with the sleeve 65 and the guide rod 66, and the tail end of the guide rod 66 is connected with a capsule rod 67, and the capsule rod 67 is inserted into the sleeve 65, and its tail end is connected to the bottom of the sleeve 65, and an air guide tube 68 is inserted into one of the rotating shafts 63 for rotation, and the air guide tube 68 is connected with the capsule rod 67; Specifically, in order to facilitate the two restraint belts 3 to stably lock and fix the training arm 4, the servo motor is fixed to the end face of the slidingly connected locking slider 54. At this time, the rotating shaft 63 in the locking slider 54 will drive the meshing gear 62 to rotate. Since the sleeve 65 and the guide rod 66 are softly connected through the capsule rod 67, and a certain amount of gas is introduced into the capsule rod 67 through the air guide tube 68 as needed, the hardness of the capsule rod 67 is increased, and then the left plastic rack 61 will first drive the left restraint belt 3 to slowly lock the left arm of the training arm 4. As the sleeve 65 continues to rotate, the capsule rod 67 with increased hardness will drive the guide rod 66 to rotate, thereby positioning the training arm 4. The right side restraint belt 3 will be engaged with the right meshing gear 62 and the plastic rack 61 to restrain and fix the right arm and palm of the training arm 4. Therefore, the two rotating shafts 63 are softly connected through the sleeve 65, the guide rod 66 and the capsule rod 67. Since the diameter of the training arm 4 gradually decreases from left to right, it can prevent the locking force of the left side restraint belt 3 from being too large when the two restraint belts 3 are locked synchronously, thereby preventing the training arm 4 from being damaged. When the locking slider 54 drives the left side restraint belt 3 to slide, the gas inside the capsule rod 67 will be extracted, so that the capsule rod 67 can be compressed or stretched in the sleeve 65, which will not affect the sliding adjustment of the left side restraint belt 3.

[0025] In the scheme designed by the present invention, a hidden groove 22 is provided in the groove wall of the through long groove 21, and two sections of extrusion bars 55 are slidably arranged in the hidden groove 22, and the teeth on the side surfaces of the two sections of the extrusion bars 55 correspond to the two plastic racks 61 in the same through long groove 21, and an electric push rod 56 is fixed at the groove bottom of the through long groove 21, and the output rod of the electric push rod 56 is connected to the extrusion bar 55; Specifically, after the two restraints 3 are locked and fixed to the training arm 4, in order to prevent the meshing gear 62 from rotating and causing the restraint 3 to loosen, the output rod of the electric push rod 56 can be controlled to extend, so that it drives the two sections of the extrusion strips 55 to extend from the hidden groove 22 at the same time, and then the teeth on the extrusion strip 55 will be squeezed onto the plastic rack 61, so that the plastic rack 61 can be limited and fixed to prevent the plastic rack 61 from slipping and causing the restraint 3 to loosen, which will affect the effect of the nursing staff's intravenous injection training; and when the output rod of the electric push rod 56 is retracted, the extrusion strip 55 is retracted, and the plastic rack 61 is retracted. After being retracted into the hidden groove 22, the rotation of the meshing gear 62 will drive the plastic rack 61 to slide, thereby facilitating the loosening of the restraint belt 3. At this time, the extrusion strip 55 can be pushed out as needed to make the extrusion strip 55 fit against the side of the plastic rack 61 without squeezing it, and then the sliding of the locking slider 54 will drive the restraint belt 3 to slide through the plastic rack 61. At this time, the fitted extrusion strip 55 will play a role of limiting and guiding the plastic rack 61, preventing the plastic rack 61 from swinging freely when sliding in the long groove 21, thereby affecting the accurate and stable adjustment of the restraint belt 3.

[0026] In the solution designed by the present invention, the width of the movable square hole 542 is greater than the thickness of the plastic rack 61, and the inner wall of the meshing cavity 541 is connected to a limit push plate 57 through a spring, and the limit push plate 57 is in contact with the back of the plastic rack 61; Specifically, in order to prevent too much or too little gas from entering the bag-shaped rod 67, thereby affecting the hardness of the bag-shaped rod 67 and thus affecting the binding and fixing effect of the two restraint belts 3 on the training arm 4, for example, when the nursing staff finds that the binding force of the left restraint belt 3 is relatively small, the right-side segmented extrusion strip 55 is first controlled to extend so that it squeezes the corresponding plastic rack 61 on the right restraint belt 3. Since the width of the movable square hole 542 is greater than the thickness of the plastic rack 61, the extrusion of the plastic rack 61 by the extrusion strip 55 will cause it to be out of engagement with the meshing gear 62. At this time, the sliding plastic rack 61 will push the limit push plate 57 to slide, and the spring will be compressed, and then the meshing gear 62 in the locking slider 54 on the left will continue to slide. The plastic rack 61 on the left is meshed with the plastic rack 61. Therefore, the rotation of the meshing gear 62 will drive the left restraint belt 3 to continue to tighten through the plastic rack 61, thereby increasing the left arm restraint force of the left restraint belt 3 on the training arm 4; when it is found that the restraint force of the right restraint belt 3 is too large, the extrusion bar 55 corresponding to the sliding plastic rack 61 is extended. At this time, the extrusion bar 55 will squeeze and push the plastic rack 61 on the left, and then the plastic rack 61 will be disengaged from the meshing with the corresponding meshing gear 62, and the extrusion bar 55 corresponding to the plastic rack 61 on the right will be disengaged from squeezing it. At this time, the elastic restoring force of the spring will only push the plastic rack 61 to mesh with the meshing gear 62 through the limiting push plate 57, and will not interfere with the plastic The plastic rack 61 slides normally, and the two meshing gears 62 rotate synchronously through the sleeve 65, the guide rod 66 and the capsule rod 67, so that the meshing gear 62 drives the meshing plastic rack 61 to loosen, thereby reducing the restraining force of the right-side restraint belt 3 on the training arm 4, so that the two restraint belts 3 can be in a comfortable state to restrain and fix the training arm 4. Since the length of the extrusion strip 55 corresponding to the sliding plastic rack 61 is greater than the length of the extrusion strip 55 corresponding to the fixed plastic rack 61, the extrusion strip 55 on the left segment can always correspond to the sliding plastic rack 61, so as to facilitate the extrusion and limit fixation of the plastic rack 61; at the same time, the nursing staff can control the right-side extrusion strip 55 to the right-side plastic rack as needed. The squeezing of the bar 61 causes it to disengage from the meshing gear 62 on the right side, and then the rotation of the meshing gear 62 on the left side can drive the left restraint belt 3 to restrain and fix the training arm 4 first through the plastic rack 61 on the left side, and then control the longer squeezing bar 55 on the left side to extend so that it can squeeze and fix the plastic rack 61 on the left side. At this time, the plastic rack 61 will be disengaged from the meshing gear 62, and then the shorter squeezing bar 55 on the right side will be disengaged from the squeezing of the plastic rack 61 on the right side, so that the plastic rack 61 on the right side is engaged with the meshing gear 62 on the right side, and then the right restraint belt 3 can restrain and fix the arm and palm of the training arm 4, thereby improving the stability and safety of the restraint and fixation of the training arm 4 on the operating table 2.

[0027] In the scheme designed by the present invention, the lifting mechanism 7 includes a fixed cylinder 71, a lifting rod 72, a locking bolt 73 and a connecting cap 74. The fixed cylinder 71 is vertically fixed on the base plate 1, and a lifting rod 72 is inserted in each fixed cylinder 71. The lifting rod 72 is connected to the fixed cylinder 71 by a locking bolt 73, and the top end of the lifting rod 72 is connected to the operating table 2 by a connecting cap 74; specifically, by loosening and locking the locking bolt 73, the sliding distance of the lifting rod 72 in the fixed cylinder 71 can be adjusted, thereby facilitating the adjustment of the height of the operating table 2 and facilitating the nursing staff to perform intravenous injection practice in a comfortable state.

[0028] In the solution designed by the present invention, a nut member 75 is threadedly connected to the locking bolt 73, and the inner end surface of the nut member 75 is connected to a plug sleeve 76, a vertical guide groove 711 is vertically opened on the wall of the fixing cylinder 71, and a plurality of notch holes 712 are opened on the outer groove wall of the vertical guide groove 711, and the notch holes 712 correspond to the plug sleeve 76, and the rod body of the locking bolt 73 passes through the vertical guide groove 711 and is connected to the lifting rod 72; specifically, when it is necessary to lower the height of the operating platform 2, the nut member 75 is twisted at this time so that the plug sleeve 76 on its inner end surface is removed from the notch hole 712. 12 is disengaged, and then the operating table 2 is pressed to make its lifting rod 72 move downward in the fixing cylinder 71, and at this time, the locking bolt 73 will slide downward along the vertical guide groove 711, and then the nut member 75 is twisted to rotate the plug sleeve 76 and insert it into the aligned notch hole 712, so as to facilitate the fixed support of the operating table 2 at the rear side of the adjustment, and the nut member 75 is loosened to disengage the plug sleeve 76 from the notch hole 712, and the operating table 2 is pulled upward, and then the nut member 75 is rotated again to insert the plug sleeve 76 into the aligned notch hole 712, so that the operating table 2 can be adjusted.

[0029] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0030] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. An intravenous injection training stand for nursing teaching, characterized in that: It comprises a base plate (1) and an operating table (2); The bottom of the operating platform (2) is supported on the bottom plate (1) via a lifting mechanism (7); at least two sets of restraint belts (3) are provided on the operating platform (2); the two sets of restraint belts (3) are used to fix the training arms (4) on the operating platform (2); A sliding adjustment mechanism (5) is provided at the bottom of the operating table (2), and the sliding adjustment mechanism (5) is used to drive the restraining belt (3) to slide and adjust on the operating table (2); The sliding adjustment mechanism (5) is provided with a locking mechanism (6), and the locking mechanism (6) is used to lock and adjust the restraining belt (3).

2. The intravenous injection training stand for nursing teaching according to claim 1, characterized in that: The sliding adjustment mechanism (5) comprises a support block (51), a driving screw (52), a screw slider (53), a connecting rod (531) and a locking slider (54); two support blocks (51) are fixedly provided on the bottom surface of the operating table (2); a driving screw (52) is rotatably mounted between the two support blocks (51) via a bearing; a screw slider (53) is sleeved on the driving screw (52) via a ball nut; connecting rods (531) are fixedly provided on two side surfaces of the screw slider (53); and each connecting rod (531) is fixedly provided on the bottom surface of the operating table (2). The ends of the rods (531) are fixedly provided with locking sliders (54), and the two side surfaces of the support block (51) located on the right side of the bottom surface of the operating table (2) are also fixedly provided with connecting rods (531), and the ends of the connecting rods (531) are also fixedly provided with locking sliders (54), and the operating table (2) is provided with two through-going long grooves (21), and the front-to-back symmetrical locking sliders (54) correspond to the symmetrically provided through-going long grooves (21), and the two groups of the locking sliders (54) are respectively connected to the two restraining belts (3).

3. The intravenous injection training stand for nursing teaching according to claim 2, characterized in that: The locking mechanism (6) comprises a plastic rack (61), a meshing gear (62), a rotating shaft (63) and a stop block (64); a meshing cavity (541) is formed inside the locking slider (54); and a movable square hole (542) is formed through the upper and lower cavity walls of the meshing cavity (541); the movable square hole (542) corresponds to the through-long groove (21); the two ends of the restraining belt (3) are connected to the plastic rack (61); the free end of the plastic rack (61) passes through the through-long groove (21) and the movable square hole (542); The square hole (542) extends into the meshing cavity (541), and the free end of the plastic rack (61) extends out of the bottom of the locking slider (54). A meshing gear (62) is rotatably installed in the meshing cavity (541) via a rotating shaft (63). The meshing gear (62) meshes with the teeth of the plastic rack (61) located in the meshing cavity (541) for transmission. A limit block (64) is fixedly provided at the free end of the plastic rack (61). The size of the limit block (64) is larger than the size of the movable square hole (542).

4. The intravenous injection training stand for nursing teaching according to claim 3, characterized in that: The locking mechanism (6) further comprises a sleeve (65), a guide rod (66), a capsule rod (67) and an air guide tube (68); corresponding end surfaces of the two rotating shafts (63) located on the same side are respectively connected to the sleeve (65) and the guide rod (66); the tail end of the guide rod (66) is connected to the capsule rod (67); the capsule rod (67) is inserted into the sleeve (65), and its tail end is connected to the bottom of the sleeve (65); an air guide tube (68) is rotatably inserted into one of the rotating shafts (63), and the air guide tube (68) is communicated with the capsule rod (67).

5. The intravenous injection training stand for nursing teaching according to claim 3, characterized in that: The groove wall of the through-long groove (21) is provided with a hidden groove (22), and two sections of extrusion bars (55) are slidably arranged in the hidden groove (22), and the teeth on the side surfaces of the two sections of the extrusion bars (55) correspond to two plastic racks (61) in the same through-long groove (21), and an electric push rod (56) is fixedly arranged at the groove bottom of the through-long groove (21), and the output rod of the electric push rod (56) is connected to the extrusion bar (55).

6. The intravenous injection training stand for nursing teaching according to claim 5, characterized in that: The width of the movable square hole (542) is greater than the thickness of the plastic rack (61); the inner cavity wall of the meshing cavity (541) is connected to a limit push plate (57) via a spring; and the limit push plate (57) is in contact with the back surface of the plastic rack (61).

7. The intravenous injection training stand for nursing teaching according to claim 1, characterized in that: The lifting mechanism (7) comprises a fixed cylinder (71), a lifting rod (72), a locking bolt (73) and a connecting cap (74); the fixed cylinder (71) is vertically fixed on the bottom plate (1), and each fixed cylinder (71) is plugged with a lifting rod (72); the lifting rod (72) and the fixed cylinder (71) are connected via a locking bolt (73); and the top end of the lifting rod (72) is connected to the operating table (2) via a connecting cap (74).

8. The intravenous injection training stand for nursing teaching according to claim 7, characterized in that: The locking bolt (73) is threadedly connected to a nut member (75), and the inner end surface of the nut member (75) is connected to a plug sleeve (76); a vertical guide groove (711) is vertically opened on the wall of the fixing cylinder (71), and a plurality of notch holes (712) are opened on the outer wall of the vertical guide groove (711), wherein the notch holes (712) correspond to the plug sleeve (76); the rod body of the locking bolt (73) passes through the vertical guide groove (711) and is connected to the lifting rod (72).

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