Limb teaching model

Abstract

The utility model relates to the technical field of limb teaching, in particular to a limb teaching model which comprises an installation assembly, the installation assembly is composed of a supporting plate and a connecting ring rotating in the inner wall of the supporting plate, and the inner wall of the connecting ring is fixedly connected with a spring. According to the limb teaching model, through the arrangement of the supporting plate, the connecting ring, the spring, the clamping ball, the adjusting bolt, the gear A, the gear B, the threaded rod and the fixing clamp, when the limb teaching model is used, a worker inserts the connecting rod into the connecting ring on the inner wall of the supporting plate and rotates the adjusting bolt, so that the adjusting bolt drives the gear A to rotate, and the gear A drives the gear B to rotate; a gear B drives a threaded rod to rotate, the threaded rod drives a fixing clamp to move, a connecting rod is clamped in a connecting ring, a worker can directly rotate the connecting rod, the connecting ring rotates along a supporting plate, a clamping ball can be bounced into a clamping groove in the inner wall of the supporting plate by a spring, and the angle of the connecting rod is positioned.

Description

Technical Field

[0001] This utility model relates to the field of physical teaching technology, specifically a physical teaching model. Background Technology

[0002] Clinical nursing education is an educational process that systematically cultivates the professional skills, clinical thinking, and professional qualities of nursing students or newly hired nurses by combining theoretical education with practical training in a real medical environment. A physical teaching model is needed in this teaching process.

[0003] The limb teaching model for clinical nursing teaching disclosed in CN221427284U, through the combination of a rotating frame, an arm model, and a rotating shaft, allows the arm model to rotate within the rotating frame using a rotating shaft fixed on one side, thus facilitating the adjustment of the angle of the intravenous infusion teaching operation surface of the arm model. Furthermore, the combination of a limiting baffle, a rotating positioning cylinder, a threaded cylinder, a positioning bolt, and a torsion lug allows the rotating shaft to slide within the rotating positioning cylinder, with the limiting baffle at one end of the rotating shaft contacting one side of the rotating positioning cylinder, thereby ensuring stable rotation of the rotating shaft within the rotating frame. By manually twisting the positioning bolt within the threaded cylinder using the torsion lug, the positioning bolt rotates within the threaded cylinder, contacting and pressing against the rotating shaft within the rotating positioning cylinder, thus positioning the rotating shaft within the rotating positioning cylinder. This allows the arm model to be rotated at any angle and fixed in place, facilitating easy rotation of the arm model to a suitable angle for use.

[0004] However, this physical instruction model has the following drawbacks:

[0005] (1) The physical teaching model has a weak installation function. When using it, the device cannot stably position and install the model. Adjusting the installed model may result in poor teaching effect.

[0006] (2) The physical teaching model has weak maintenance function. During use, the device will wear out after a long period of teaching, which may cause poor teaching. Utility Model Content

[0007] The purpose of this invention is to provide a physical teaching model to solve the problems mentioned in the background art.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a limb teaching model, comprising an installation assembly, the installation assembly consisting of a support plate and a connecting ring rotating within the inner wall of the support plate, a spring fixedly connected to the inner wall of the connecting ring, a retaining ball fixedly connected to one end of the spring, an adjusting bolt fixedly connected to one end of the connecting ring, a gear A fixedly connected to one end of the adjusting bolt, a gear B meshing with one end of gear A, a threaded rod fixedly connected to one end of gear B, a connecting cylinder threadedly connected to one end of the threaded rod, and a fixing clamp rotatably connected to one end of the connecting cylinder; and a teaching assembly, comprising a connecting rod mounted on the inner wall of the fixing clamp and a fixing frame, a positioning assembly provided on the edge of the fixing frame, a connecting frame provided at one end of the positioning assembly, and a simulation pad fixedly connected to the outer surface of the fixing frame.

[0009] Preferably, the bottom of the support plate is provided with a fixing groove, the inner wall of the fixing groove is fixedly connected to a base plate, and the top two ends of the base plate are provided with fixing grooves. The support plate is installed in the fixing groove, and the base plate provides stable support for the support plate.

[0010] Preferably, a support column is fixedly connected to the bottom edge of the base plate, a base is fixedly connected to the bottom of the support column, a support plate is installed at the bottom edge of the base plate, and a base is fixed to the bottom of the support column. The base and the support column provide support for the base plate.

[0011] Preferably, the inner walls of the fixed frame are provided with arc-shaped grooves at both ends, and the inner walls of the arc-shaped grooves are fixedly connected with connecting plates. The inner walls of the fixed frame and the connecting frame are provided with arc-shaped grooves at both ends, and connecting plates are installed on the inner walls of the arc-shaped grooves.

[0012] Preferably, the connecting rod has mounting grooves at both ends of its outer surface. The inner wall of the mounting groove is engaged with the outer surface of the docking plate. The mounting grooves at both ends of the connecting rod allow the docking plate to be inserted into the mounting grooves, facilitating the docking of the connecting rod and the docking plate.

[0013] Preferably, the inner wall of the spring is provided with a telescopic rod, one end of which is fixedly connected to the center of the back of the ball. The telescopic rod can prevent the spring from tilting and deforming, and stabilize the spring's contraction.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This limb teaching model, through the setup of a support plate, connecting ring, spring, retaining ball, adjusting bolt, gear A, gear B, threaded rod, connecting cylinder, and fixing clamp, allows the operator to insert the connecting rod into the connecting ring on the inner wall of the support plate during use. Rotating the adjusting bolt causes gear A to rotate, which in turn rotates gear B, which in turn rotates the threaded rod. The threaded rod then moves the fixing clamp, clamping the connecting rod within the connecting ring. The operator can then directly rotate the connecting rod, causing the connecting ring to rotate along the support plate. The retaining ball is springed into a slot on the inner wall of the support plate, positioning the angle of the connecting rod. This design facilitates stable installation and convenient adjustment of the teaching aid.

[0016] 2. This limb teaching model, through the setting of connecting rods, fixed frames, positioning components, and simulation mats, allows staff to remove the connecting frames and fixed frames from the connecting rods using the positioning components, replace them with new ones, and then reinstall them on the connecting rods using the positioning components. This setup prevents the worn simulation mat from affecting the teaching effect. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the simulation pad of this utility model;

[0018] Figure 2 This is a schematic diagram of the connecting ring of this utility model;

[0019] Figure 3 This is a schematic diagram of the fixing clip of this utility model;

[0020] Figure 4 This is a schematic diagram of Embodiment 1 of the present invention;

[0021] Figure 5 This is a schematic diagram of Embodiment 2 of the present invention.

[0022] In the diagram: 1. Installation component; 101. Support plate; 102. Connecting ring; 103. Spring; 104. Clamping ball; 105. Adjusting bolt; 106. Gear A; 107. Gear B; 108. Threaded rod; 109. Connecting cylinder; 110. Fixing clamp; 2. Teaching component; 201. Connecting rod; 202. Fixing frame; 203. Connecting frame; 204. Simulation pad; 3. Positioning component; 301. Insert rod; 302. Slot; 303. Nut; 304. Installation bolt; 305. Connecting block; 306. Positioning groove; 4. Base plate; 5. Support column; 6. Base; 7. Connecting plate; 8. Telescopic rod. Detailed Implementation

[0023] 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.

[0024] Please see Figures 1-3As shown, this utility model provides a technical solution: a limb teaching model, including an installation component 1. The installation component 1 consists of a support plate 101 and a connecting ring 102 that rotates within the inner wall of the support plate 101. A spring 103 is fixedly connected to the inner wall of the connecting ring 102. A retaining ball 104 is fixedly connected to one end of the spring 103. An adjusting bolt 105 is fixedly connected to one end of the connecting ring 102. A gear A106 is fixedly connected to one end of the adjusting bolt 105. A gear B107 meshes with one end of the gear A106. A threaded rod 108 is fixedly connected to one end of the gear B107. A connecting cylinder 109 is threadedly connected to one end of the threaded rod 108. One end of the connecting cylinder 109 rotates. The teaching component 2 is connected to a fixed clamp 110. The teaching component 2 consists of a connecting rod 201 mounted on the inner wall of the fixed clamp 110 and a fixed frame 202. A positioning component 3 is provided on the edge of the fixed frame 202, and a connecting frame 203 is provided at one end of the positioning component 3. A simulation pad 204 is fixedly connected to the outer surface of the fixed frame 202. Through the arrangement of a support plate 101, a connecting ring 102, a spring 103, a retaining ball 104, an adjusting bolt 105, gear A 106, gear B 107, a threaded rod 108, and the fixed clamp 110, during use, the operator inserts the connecting rod 201 into the connecting ring 102 on the inner wall of the support plate 101 and rotates the adjusting bolt 105 to adjust the screw... Bolt 105 drives gear A106 to rotate, gear A106 drives gear B107 to rotate, gear B107 drives threaded rod 108 to rotate, and threaded rod 108 drives fixed clamp 110 to move, clamping connecting rod 201 into connecting ring 102. The operator can directly rotate connecting rod 201, causing connecting ring 102 to rotate along support plate 101. The retaining ball 104 is spring-loaded by spring 103 into a groove on the inner wall of support plate 101, positioning the angle of connecting rod 201. This design facilitates stable installation of teaching aids and allows for convenient adjustment of the teaching aids. The positioning component 3, connecting frame 203, and simulation pad 204 are configured such that, during use, operators can use the positioning component 3 to remove the connecting frame 203 and fixing frame 202 from the connecting rod 201, replace them with new fixing frame 202 and connecting frame 203, and then use the positioning component 3 to install the fixing frame 202 and connecting frame 203 back onto the connecting rod 201. This configuration prevents the worn simulation pad 204 from affecting the teaching effect. It should be noted that: if the number of teeth of gear A is \(z_{A}=20\) and the number of teeth of gear B is \(z_{B}=40\), then the gear transmission ratio \(i=\frac{z_{B}}{z_{A}}=2\). The torque applied when the adjusting bolt rotates is \(T=5N·m\).Based on the relationship between torque and force (F = T / r) (where r is the lever arm of the adjusting bolt, assumed to be 0.05m), the force acting on gear A is (F_{A} = 5N·m / 0.05m = 100N). Due to the gear ratio, the force acting on gear B is (F_{B} = F_{A} / i = 50N), and the pitch of the threaded rod is set to (p = 2mm). When gear B drives the threaded rod to rotate, according to the force and movement relationship of the thread, the distance moved by the fixed clamp under the drive of the threaded rod per revolution is the pitch p. The clamping force (F_{clamp}) of the fixing clamp on the connecting rod is related to the force on the threaded rod. Assuming the mechanical efficiency is (eta=0.8) (considering factors such as friction), according to the principle of energy conservation, (F_{clamp}=etaF_{B}), then (F_{clamp}=0.8×50N=40N). This clamping force can ensure that the connecting rod is stably fixed in the connecting ring. The depth of the mounting grooves at both ends of the outer surface of the connecting rod 201 is (h=5mm), and the thickness of the mating plate 7 is (t=4.8mm). The fit tolerance between the two is small, ensuring a tight fit. The inner diameter of the fixed frame 202 is D1 = 100mm, the outer diameter of the connecting rod 201 is D2 = 98mm, and the gap is DeltaD = D1 - D2 = 2mm. This design ensures both the flexibility of the connecting rod's rotation within the fixed frame and a certain degree of connection stability. The simulation pad 204 is 3mm thick, made of silicone, and has a Shore A hardness of 60. This thickness and material effectively simulate the tactile sensation of human limbs, enhancing the realism and effectiveness of the teaching.

[0025] The bottom of the support plate 101 is provided with a fixing groove, and the inner wall of the fixing groove is fixedly connected to the base plate 4. With the setting of the support plate 101 and the base plate 4, when in use, the fixing grooves are provided at both ends of the top of the base plate 4, and the support plate 101 is installed in the fixing groove. The base plate 4 provides stable support for the support plate 101.

[0026] A support column 5 is fixedly connected to the bottom edge of the base plate 4, and a base 6 is fixedly connected to the bottom of the support column 5. With the base plate 4, support column 5 and base 6, a support plate 101 is installed at the bottom edge of the base plate 4 during use, and a base 6 is fixed at the bottom of the support column 5. The base 6 and support column 5 provide support for the base plate 4.

[0027] The inner walls of the fixed frame 202 are provided with arc-shaped grooves at both ends, and the inner walls of the arc-shaped grooves are fixedly connected with the mating plates 7. With the setting of the fixed frame 202 and the mating plates 7, the inner walls of the fixed frame 202 and the connecting frame 203 are provided with arc-shaped grooves at both ends, and the mating plates 7 are installed on the inner walls of the arc-shaped grooves.

[0028] The connecting rod 201 has mounting grooves at both ends of its outer surface. The inner wall of the mounting groove is engaged with the outer surface of the docking plate 7. With the connecting rod 201 and the docking plate 7, the connecting rod 201 has mounting grooves at both ends during use, and the docking plate 7 is engaged in the mounting grooves to facilitate docking between the connecting rod 201 and the docking plate 7.

[0029] The inner wall of the spring 103 is provided with a telescopic rod 8. One end of the telescopic rod 8 is fixedly connected to the center of the back of the ball 104. Through the arrangement of the spring 103, the telescopic rod 8 and the ball 104, the telescopic rod 8 can prevent the spring 103 from tilting and deforming during use, and stabilize the contraction of the spring 103.

[0030] In this invention, the working steps of the device are as follows:

[0031] First step: The operator inserts the connecting rod 201 into the connecting ring 102 on the inner wall of the support plate 101, rotates the adjusting bolt 105, causing the adjusting bolt 105 to drive the gear A106 to rotate, the gear A106 to drive the gear B107 to rotate, the gear B107 to drive the threaded rod 108 to rotate, and the threaded rod 108 to drive the fixing clamp 110 to move, clamping the connecting rod 201 in the connecting ring 102. The operator can directly rotate the connecting rod 201, causing the connecting ring 102 to rotate along the support plate 101. The retaining ball 104 will be ejected by the spring 103 into the retaining groove on the inner wall of the support plate 101, positioning the angle of the connecting rod 201, which is convenient for the operator to carry out teaching operations.

[0032] The second step: The staff can use the positioning component 3 to remove the connecting frame 203 and the fixing frame 202 from the connecting rod 201, replace them with new fixing frames 202 and connecting frames 203, and then use the positioning component 3 to install the fixing frames 202 and connecting frames 203 on the connecting rod 201. This can prevent the worn simulation pad 204 from affecting the teaching effect.

[0033] Example 1

[0034] Please refer to Figure 4 The positioning component 3 includes a rod 301, a slot 302, and a nut 303. The slot 302 is located at the edge of the fixing frame 202 and the connecting frame 203. The rod 301 is inserted into the slot 302. The bottom of the rod 301 is threaded. The thread is connected to the nut 303 to realize the installation of the fixing frame 202 and the connecting frame 203.

[0035] Example 2

[0036] Please refer to Figure 5The positioning component 3 includes a mounting bolt 304, a mating block 305, and a positioning groove 306. The positioning groove 306 is provided at the edge of the connecting frame 203. The mounting bolt 304 rotates at the bottom edge of the fixed frame 202. The mating block 305 is fixed on the lower surface of the mounting bolt 304. The mating block 305 is inserted down along the positioning groove 306. While the mating block 305 passes through the positioning groove 306, the mounting bolt 304 is rotated, so that the mounting bolt 304 is connected to the positioning groove 306, thereby realizing the installation of the fixed frame 202 and the connecting frame 203.

[0037] It should be noted that the device structure and accompanying drawings of this utility model mainly describe the principle of this utility model. In terms of the technical aspects of this design principle, the setting of the power mechanism, power supply system and control system of the device is not fully described. However, under the premise that those skilled in the art understand the principle of the above utility model, the specific details of its power mechanism, power supply system and control system can be clearly understood. The control method in the application document is automatic control through a controller. The control circuit of the controller can be implemented by those skilled in the art through simple programming.

[0038] All standard parts used can be purchased from the market, and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the existing technology. The machinery, parts and equipment adopt conventional models in the existing technology, and the structure and principle of the components known to those skilled in the art can be known by those skilled in the art through technical manuals or conventional experimental methods.

[0039] 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 limb teaching model comprising a mounting assembly (1) characterised in that: The mounting assembly (1) is composed of a support plate (101) and a connecting ring (102) rotating in the inner wall of the support plate (101), the inner wall of the connecting ring (102) is fixedly connected with a spring (103), one end of the spring (103) is fixedly connected with a clamping ball (104), one end of the connecting ring (102) is fixedly connected with an adjusting bolt (105), one end of the adjusting bolt (105) is fixedly connected with a gear A (106), one end of the gear A (106) is engaged with a gear B (107), one end of the gear B (107) is fixedly connected with a threaded rod (108), one end of the threaded rod (108) is threadedly connected with a connecting cylinder (109), one end of the connecting cylinder (109) is rotatably connected with a fixed clamp (110); The teaching assembly (2) is composed of a connecting rod (201) mounted on the inner wall of the fixed clamp (110) and a fixed frame (202), the edge of the fixed frame (202) is provided with a positioning assembly (3), one end of the positioning assembly (3) is provided with a connecting frame (203), the outer surface of the fixed frame (202) is fixedly connected with a simulation pad (204).

2. The limb teaching phantom of claim 1, wherein: The bottom of the support plate (101) is provided with a fixed groove, the inner wall of the fixed groove is fixedly connected with a bottom plate (4).

3. A limb teaching phantom according to claim 2, wherein: The bottom edge of the bottom plate (4) is fixedly connected with a support column (5), the bottom of the support column (5) is fixedly connected with a base (6).

4. The limb teaching phantom of claim 1, wherein: The inner wall of the fixed frame (202) is provided with an arc-shaped groove at both ends, the inner wall of the arc-shaped groove is fixedly connected with a butt plate (7).

5. The limb teaching phantom of claim 1, wherein: The outer surface of the connecting rod (201) is provided with a mounting groove at both ends, the inner wall of the mounting groove is clamped to the outer surface of the butt plate (7).

6. The limb teaching phantom of claim 1, wherein: The inner wall of the spring (103) is provided with a telescopic rod (8), one end of the telescopic rod (8) is fixedly connected to the back center of the clamping ball (104). The bottom of the support plate (101) is provided with a fixed groove, the inner wall of the fixed groove is fixedly connected with a bottom plate (4).

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