CN220984042U

CN220984042U - Elbow extension and elbow bending demonstration instrument

Info

Publication number: CN220984042U
Application number: CN202321236325.0U
Authority: CN
Inventors: 陈锦秀
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-05-19
Filing date: 2023-05-19
Publication date: 2024-05-17
Anticipated expiration: 2033-05-19

Abstract

The utility model is suitable for the technical field of teaching demonstration instruments, and discloses an elbow extension and elbow bending demonstration instrument which comprises a framework, a transmission assembly and an air supply device. The framework comprises an upper arm bone and a forearm bone movably connected with the upper arm bone; the transmission assembly comprises an elastomer and a deformation tube, the elastomer is arranged in the deformation tube, and the deformation tube is fixed on the upper arm bone and connected with the forearm bone; the air supply device is communicated with the elastic body and is used for supplying air to enable the volume of the elastic body to change and driving the deformation tube to deform so as to enable the length of the deformation tube to change, and therefore the forearm bone is driven to rotate relative to the upper arm bone. Through setting up drive assembly and air feeder, through the volume change of elastomer, the length of drive deformation pipe changes to drive forearm bone and rotate for the upper arm bone, the cost of manufacture is lower, makes the student understand the coordination relation of elbow, biceps brachii, triceps brachii when stretching the elbow directly perceivedly, thereby obtains better classroom effect.

Description

Elbow extension and elbow bending demonstration instrument

Technical Field

The utility model relates to the technical field of teaching demonstration instruments, in particular to an elbow extension and elbow bending demonstration instrument.

Background

The content of the book 44 on eight-grade level of human teaching university, p.m. on animal sports, relates to "coordination of bones, joints and muscles". When a biological teacher explains the sports for students, the best mode is to demonstrate the action occurrence process through a model so that the students can master the knowledge point deeply and intuitively. Therefore, a corresponding teaching model has been developed, and the traditional model of muscle traction bone movement only simulates muscle by rubber bands, so that the contraction and relaxation changes of the 'muscle' are not obvious. During demonstration, the paper board (simulated bone) can only be pulled by hand, and the length change of the rubber band is observed. But the bone itself is not movable, and the movement of the bone is by traction of skeletal muscle. Therefore, the traditional model has great defects in demonstration and principle although being simple to manufacture.

Disclosure of utility model

The utility model aims to provide an elbow extension and elbow bending demonstration instrument, which aims to solve the technical problem that the existing teaching model cannot intuitively demonstrate the motion process of a muscle traction bone.

In order to achieve the above purpose, the utility model provides the following scheme:

an elbow extension and flexion demonstration instrument, comprising:

the framework comprises an upper arm bone and a forearm bone movably connected with the upper arm bone;

The transmission assembly comprises an elastomer and a deformation tube, wherein the elastomer is arranged in the deformation tube, and the deformation tube is fixed on the upper arm bone and connected with the forearm bone;

The air supply device is communicated with the elastic body and is used for supplying air to enable the volume of the elastic body to change and driving the deformation tube to deform so as to enable the length of the deformation tube to change, and therefore the forearm bone is driven to rotate relative to the upper arm bone.

Optionally, the deformation tube is formed with and places the space, is located place the space the deformation tube is provided with many clearances, just the clearance with place the space intercommunication, many the clearance will at least some the deformation tube is cut apart and is a plurality of deformation portions.

Optionally, a plurality of the gaps extend along the length direction of the deformation tube and are parallel to each other.

Optionally, the elastomer includes first balloon and second balloon, air feeder includes first syringe and second syringe, the deformation pipe includes first deformation spare and second deformation spare, first syringe with first balloon intercommunication, first balloon is located in the first deformation spare, the second syringe with the second balloon intercommunication, the second balloon is located in the second deformation spare, first deformation spare the second deformation spare all connect in between upper arm bone and the forearm bone.

Optionally, a first connecting position, a second connecting position and a third connecting position are arranged at one end of the forearm bone, which is close to the upper arm bone, and the second connecting position and the third connecting position are respectively positioned at two opposite sides of the first connecting position; the forearm bone is connected with the upper arm bone in a rotating mode through the first connecting position, the first deformation piece is connected with the second connecting position, and the second deformation piece is connected with the third connecting position.

Optionally, the elbow extension and flexion demonstration instrument further comprises a first connecting piece and a second connecting piece, wherein the first connecting piece is connected between the first deformation piece and the second connecting position; the second connector is connected between the second deformable member and the third connection location.

Optionally, the first connector and the second connector are paperclips.

Optionally, the elbow extension and bend demonstration instrument further comprises two soft plastic pipe fittings and two hard plastic pipe fittings, wherein the first injector, one of the soft plastic pipe fittings, one of the hard plastic pipe fittings and the first balloon are sequentially communicated; the second injector, the other soft rubber pipe fitting, the other hard plastic pipe fitting and the second balloon are sequentially communicated.

Optionally, the first balloon and the second balloon are tied and fixed on the hard plastic pipe fitting through rubber bands.

Optionally, the elbow extension and flexion demonstration instrument further comprises a fixing piece, and the fixing piece is used for fixing the deformation tube on the upper arm bone.

Compared with the prior art, the utility model has the beneficial effects that:

According to the elbow extension and elbow bending demonstration instrument provided by the utility model, the elastic body, the deformation tube and the air supply device are arranged, the air supply device supplies air to enable the volume of the elastic body to change, and the deformation tube is driven to deform to enable the length of the deformation tube to change, so that the forearm bone is driven to rotate relative to the upper arm bone, the elbow extension and elbow bending actions can be intuitively demonstrated, the manufacturing cost is low, students can intuitively understand the coordination relationship between the biceps brachii and the triceps brachii when bending and extending the elbow, and a better classroom effect is obtained.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a plane structure of elbow bending motion of an elbow extension and bending demonstration instrument according to an embodiment of the present utility model;

fig. 2 is a schematic perspective view of a simulated biceps brachii diastole state of the elbow extension and flexion demonstrator according to an embodiment of the utility model;

fig. 3 is a schematic view of an elbow extending action perspective structure of an elbow extending and bending demonstration instrument according to an embodiment of the present utility model;

FIG. 4 is a schematic perspective view of a flexible tube in a relaxed state according to an embodiment of the present utility model;

FIG. 5 is a schematic perspective view of a stress state of a deformable tube according to an embodiment of the present utility model;

Fig. 6 is a schematic perspective view of a forearm bone according to an embodiment of the utility model;

Fig. 7 is a schematic structural diagram of the air supply device matched with the elastic body according to the embodiment of the utility model.

Reference numerals illustrate:

100. An elbow extension and elbow bending demonstration instrument; 110. a skeleton; 111. an upper arm bone; 112. a forearm bone; 1121. a first connection location; 1122. a second connection location; 1123. a third connection site; 120. a transmission assembly; 121. an elastomer; 1211. a first balloon; 1212. a second balloon; 122. a deformation tube; 1221. placing space; 1222. a gap; 1223. a deformation section; 1224. a first deforming member; 1225. a second deformation; 130. a gas supply device; 131. a first syringe; 132. a second syringe; 140. a first connector; 150. a second connector; 160. a hose fitting; 170. a hard plastic pipe fitting; 180. and a fixing piece.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present utility model are merely used to explain the relative positional relationship between the components, the movement condition, etc. in a specific posture, and if the specific posture is changed, the directional indicators are correspondingly changed.

It will also be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or be indirectly connected to the other element through intervening elements.

Furthermore, the description of "first," "second," etc. in this disclosure is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

As shown in fig. 1-7, an elbow extension and flexion demonstration apparatus 100 includes a frame 110, a transmission assembly 120, and an air supply 130. The skeleton 110 includes an upper arm bone 111 and a forearm bone 112 movably connected to the upper arm bone 111; the transmission assembly 120 comprises an elastic body 121 and a deformation tube 122, the elastic body 121 is arranged in the deformation tube 122, and the deformation tube 122 is fixed on the upper arm bone 111 and connected with the forearm bone 112; the air supply device 130 is communicated with the elastic body 121, and the air supply device 130 is used for supplying air to change the volume of the elastic body 121 and driving the deformation tube 122 to deform so as to change the length of the deformation tube 122, thereby driving the forearm bone 112 to rotate relative to the upper arm bone 111. The elbow extension and flexion demonstration instrument 100 provided by the application is used in the teaching process, can vividly show the change process of biceps brachii and triceps brachii of students when the arms extend and flex, is convenient for the students to understand, and improves the teaching quality. In this embodiment, the upper arm bone 111 and the forearm bone 112 are both made of KT board, which is a novel material formed by foaming polystyrene (Polystyrene, abbreviated PS) particles to form a board core and laminating the surface coating, and the board body is stiff, light, not easy to deteriorate and easy to process. The upper arm bone 111 and the forearm bone 112 are each plate-like structural members made of KT plate. The deformation tube 122 used in the embodiment is a transparent silicone tube, on one hand, the transparent silicone tube is cheap in material and easy to process; on the other hand, the transparent material is convenient for students to observe the change process of the elastic body 121 and the change process of the deformation tube 122, so that the students can understand the deformation tube conveniently, and better teaching effect can be obtained.

As shown in fig. 1, 2 and 3, the elbow extension and flexion demonstration apparatus 100 provided by the application is characterized in that the transmission assembly 120 and the air supply device 130 are provided, the air supply device 130 supplies air to change the volume of the elastic body 121 and drive the deformation tube 122 to deform to change the length of the deformation tube 122, so that the forearm bone 112 is driven to rotate relative to the upper arm bone 111, thereby intuitively demonstrating the movements of elbow extension and flexion, having lower manufacturing cost, and enabling students to intuitively understand the coordination relationship between the biceps brachii muscle and the triceps brachii muscle during elbow flexion and extension, thereby obtaining better classroom effect.

As shown in fig. 3, 4, and 5, as an embodiment, the bellows 122 is formed with a placement space 1221, the bellows 122 located in the placement space 1221 is provided with a plurality of gaps 1222, and the gaps 1222 are communicated with the placement space 1221, and the plurality of gaps 1222 divide at least part of the bellows 122 into a plurality of deformed portions 1223. Illustratively, the placement space 1221 of the present embodiment is disposed in the middle of the bellows 122, and it is understood that the plurality of gaps 1222 and the deformation portion 1223 are also disposed in the middle of the bellows 122. The transparent silicone tube is cut by a cutter to form a gap 1222, so that the operation is simple and the processing and the manufacturing are convenient. Meanwhile, the middle deformed tube 122 is divided into a plurality of deformed parts 1223 by the gaps 1222 so that the tube wall of the placement space 1221 can be more easily deformed, so that the deformation amount generated by the deformed tube is larger, and the generated change is increased, thereby improving the demonstration effect.

As shown in fig. 3, 4, and 5, as an embodiment, the plurality of gaps 1222 extend along the length of the deformation tube 122 and the plurality of gaps 1222 are parallel to each other. Illustratively, the gap 1222 extends along the length of the bellows 122, in this embodiment, the extending direction of the gap 1222 and the axis of the bellows 122 are parallel, and the plurality of gaps 1222 are also parallel to each other, it being understood that the deformed portion 1223 is divided into a plurality of rectangles by the gap 1222. Of course, in a specific application, the structure of the gap 1222 is not limited thereto, for example, as an alternative, the gap 1222 may be non-parallel to the axis of the deformation tube 122, that is, the gap 1222 is inclined so as to extend while dividing the deformation portion 1223 into a plurality of parallelograms; or the gap 1222 may be helically disposed.

As shown in fig. 1, 3 and 5, as an embodiment, the elastic body 121 includes a first balloon 1211 and a second balloon 1212, the air supply device 130 includes a first syringe 131 and a second syringe 132, the deformation tube 122 includes a first deformation member 1224 and a second deformation member 1225, the first syringe 131 is communicated with the first balloon 1211, the first balloon 1211 is disposed in the first deformation member 1224, the second syringe 132 is communicated with the second balloon 1212, the second balloon 1212 is disposed in the second deformation member 1225, and the first deformation member 1224 and the second deformation member 1225 are connected between the upper arm bone 111 and the forearm bone 112. Illustratively, for ease of viewing, the first balloon 1211 may be a red balloon and the second balloon 1212 may be a yellow balloon. This is done to facilitate the student's view and differentiate the biceps brachii muscle, triceps brachii muscle. The first balloon 1211 simulates the biceps brachii muscle and the second balloon 1212 simulates the triceps brachii muscle.

As shown in fig. 3, 4 and 7, as an embodiment, a first connecting position 1121, a second connecting position 1122 and a third connecting position 1123 are provided at one end of the forearm bone 112 near the upper arm bone 111, and the second connecting position 1122 and the third connecting position 1123 are respectively located at two opposite sides of the first connecting position 1121; the forearm bone 112 is rotatably coupled to the upper arm bone 111 by a first coupling location 1121, a first deforming member 1224 coupled to the second coupling location 1122, and a second deforming member 1225 coupled to the third coupling location 1123. Illustratively, in the present embodiment, the first connection location 1121, the second connection location 1122, and the third connection location 1123 are all connection holes. The forearm bone 112 and the upper arm bone 111 may be rotatably coupled with each other by a shaft, and in addition, a bearing may be provided on the shaft to facilitate rotation between the forearm bone 112 and the upper arm bone 111.

As shown in fig. 2, 4, and 5, as an embodiment, the elbow extension and flexion demonstration device 100 further includes a first connecting member 140 and a second connecting member 150, wherein the first connecting member 140 is connected between the first deforming member 1224 and the second connecting position 1122; the second connector 150 is connected between the second deformable member 1225 and the third connector location 1123. Illustratively, in the present embodiment, the first and second connecting members 140 and 150 are generally rectangular ring-shaped, and the first and second connecting members 140 and 150 each have a notch, the first connecting member 140 being configured to connect the first deforming member 1224 to the forearm bone 112 and the second connecting member 150 being configured to connect the second deforming member 1225 to the forearm bone 112.

As shown in fig. 2, 4, and 5, as one embodiment, the first and second connectors 140, 150 are paperclips. Illustratively, paperclips are readily available and can be manufactured at a relatively low cost using paperclips.

As shown in fig. 2, 3 and 7, as an embodiment, the elbow extension and flexion demonstration apparatus 100 further includes two flexible plastic pipe members 160 and two hard plastic pipe members 170, and the first injector 131, one of the flexible plastic pipe members 160, one of the hard plastic pipe members 170 and the first air ball 1211 are sequentially communicated; the second syringe 132, the other hose piece 160, the other hard plastic tube piece 170, and the second balloon 1212 are sequentially connected. Illustratively, the gas of the first injector 131 sequentially passes through the soft rubber tube 160 and the hard plastic tube 170 and finally enters the first gas ball 1211, so that the volume of the first gas ball 1211 is increased; the gas of the second syringe 132 sequentially passes through the soft rubber tube 160 and the hard plastic tube 170 and finally enters the second balloon 1212, so that the volume of the second balloon 1212 becomes larger. In addition, it should be noted that the hard plastic pipe 170 is a hard plastic pipe; the hose 160 is a latex hose.

As one embodiment, first balloon 1211, second balloon 1212 are secured to hard plastic tube 170 by rubber band strapping. Illustratively, the rubber band is easy to obtain and operate, the model is easy to process and manufacture, and in addition, the rubber band bundling mode can fix the first balloon 1211 and the second balloon 1212 and can seal the first balloon 1211 and the second balloon 1212.

As an embodiment, the elbow extension and flexion demonstrator 100 further includes a fixing member 180, where the fixing member 180 fixes the deformation tube 122 to the upper arm bone 111. Illustratively, the fasteners 180 are screws or other threaded structures, and threaded connections may be used to secure the bellows 122 to the upper arm bone 111.

Demonstration process: as shown in fig. 1, the first syringe 131 connected to the first balloon 1211 (simulating biceps brachii) is pushed, the first balloon 1211 is inflated, simulating biceps brachii contraction, and the forearm bone 112 is pulled to generate elbow flexion. As shown in fig. 2, the first syringe 131 connected to the first balloon 1211 (simulating bicep muscle) is pulled outward, and the first balloon 1211 collapses, simulating bicep muscle relaxation. As shown in fig. 3, the second syringe 132 connected to the second balloon 1212 (simulating the triceps brachii) is pushed, the second balloon 1212 is inflated, simulating the contraction of the triceps brachii, and the forearm bone 112 is pulled from the opposite direction, resulting in the elbow extension action.

Compared with the existing teaching model, the elbow extension and bending demonstration instrument 100 of the application has the following improvement points:

1. The improved elbow extension and bending demonstration instrument 100 is formed by a balloon and a transparent silica gel tube into a whole to simulate muscles, so that the student understanding is structurally facilitated: the muscle is composed of muscle abdomen and tendon.

2. The balloon is used for replacing rubber bands, so that the contraction and the relaxation of muscles can be more intuitively reflected.

3. Pushing the injector, injecting air into the balloon, expanding the balloon, simulating muscle contraction, and generating movement. This process may be better embodied: the change in position of the bone due to muscle contraction produces movement.

The foregoing description is only of the preferred embodiments of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structural changes made by the description of the present utility model and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the utility model.

Claims

1. An elbow extension and flexion demonstration instrument, comprising:

2. The elbow extension and flexion demonstration instrument according to claim 1, wherein the deformable tube is formed with a placement space, the deformable tube located in the placement space is provided with a plurality of gaps, the gaps are communicated with the placement space, and the plurality of gaps divide at least part of the deformable tube into a plurality of deformed parts.

3. The elbow extension and flexion demonstrator of claim 2, wherein a plurality of said gaps extend along the length of said deformable tube and wherein a plurality of said gaps are parallel to one another.

4. The elbow extension and flexion demonstration instrument according to claim 1, wherein the elastomer comprises a first balloon and a second balloon, the air supply device comprises a first injector and a second injector, the deformation tube comprises a first deformation piece and a second deformation piece, the first injector is communicated with the first balloon, the first balloon is arranged in the first deformation piece, the second injector is communicated with the second balloon, the second balloon is arranged in the second deformation piece, and the first deformation piece and the second deformation piece are connected between the upper arm bone and the forearm bone.

5. The elbow extension and flexion demonstration instrument according to claim 4, wherein a first connecting position, a second connecting position and a third connecting position are arranged at one end of the forearm bone close to the upper arm bone, and the second connecting position and the third connecting position are respectively positioned at two opposite sides of the first connecting position; the forearm bone is connected with the upper arm bone in a rotating mode through the first connecting position, the first deformation piece is connected with the second connecting position, and the second deformation piece is connected with the third connecting position.

6. The elbow extension and flexion demonstration instrument of claim 5, further comprising a first connector and a second connector, the first connector being connected between the first deformable member and the second connector; the second connector is connected between the second deformable member and the third connection location.

7. The elbow extension and flexion demonstration instrument of claim 6, wherein the first connector and the second connector are paperclips.

8. The elbow extension and flexion demonstrator of claim 4, further comprising two hose pieces and two hard plastic pieces, wherein the first injector, one of the hose pieces, one of the hard plastic pieces and the first balloon are sequentially communicated; the second injector, the other soft rubber pipe fitting, the other hard plastic pipe fitting and the second balloon are sequentially communicated.

9. The elbow extension and flexion demonstrator of claim 8, wherein the first balloon and the second balloon are secured to the rigid plastic tube by means of rubber bands.

10. The elbow extension and flexion demonstration apparatus of claim 1, further comprising a securing member securing the deformable tube to the upper arm bone.