Thoracic cavity closed drainage bottle fixing device

Abstract

The thoracic cavity closed drainage bottle fixing device comprises a fixing shell, a first clamping mechanism and a second clamping mechanism, and a drainage bottle can be fixed to the edge of a sickbed in the mode that the fixing shell is combined with the second clamping mechanism; the fixed shell is fixed to the infusion support in the mode of being combined with the first clamping mechanism. The drainage bottle can be stably fixed to the edge of a bed and can also be fixed to a medical instrument for assisting a patient in moving, and shaking is reduced.

Description

Technical Field

[0001] This application relates to the field of drainage bottle fixation technology, and in particular to a closed thoracic drainage bottle fixation device. Background Technology

[0002] A closed thoracic drainage bottle is a medical device used to drain gas or fluid accumulated in the thoracic cavity. It is usually connected to a drainage tube and uses a closed system to drain the fluid or gas from the thoracic cavity while maintaining a negative pressure state within the cavity.

[0003] Patients using closed thoracic drainage bottles typically rest in bed or perform slow walking rehabilitation exercises indoors. Closed thoracic drainage bottles usually have hooks on both sides for hanging on either side of the bed. Using hooks effectively suspends the bottle on one side of the bed. If the bottle shakes, the drainage tube may dislodge or shift, leading to complications such as pneumothorax and pleural infection. Secondly, when patients get out of bed and walk, the drainage bottle may not provide adequate support and fixation, so they often need to hold it. Holding the bottle while walking can exacerbate its shaking, causing the drainage tube to be pulled and loosened. Utility Model Content

[0004] The technical problem to be solved by this application is to provide a closed thoracic drainage bottle fixation device that can stably fix the drainage bottle to the edge of the bed or to a medical device that assists the patient's movement, thereby reducing shaking.

[0005] To solve the above-mentioned technical problems, this application adopts the following technical solution:

[0006] A closed thoracic drainage bottle fixation device includes:

[0007] The fixed housing includes a fixed plate, and two support plates for placing the drainage bottle are provided at the rear end of the fixed plate; a top plate is provided at the top of the fixed plate, and an upper pressure plate is provided at the front end of the top plate. A slot extending to the rear end of the top plate is provided at the front end of the upper pressure plate, and a pad is provided on the right side of the bottom of the slot. A limiting plate is provided at the bottom left side of the top plate, and an arc-shaped guide is provided at the left end of the limiting plate. The left end of the guide is an arc-shaped inclined surface.

[0008] The first clamping mechanism is located on the left side of the bottom of the bayonet. The clamping mechanism includes a slotted clamp seat, a pressure block is provided inside the slotted clamp seat, and a telescopic rod is movably connected to the left side of the slotted clamp seat. The telescopic rod movably passes through the limiting plate, and a spring is sleeved between the limiting plate and the slotted clamp seat and on the telescopic rod. An adjusting cylinder is provided on the left side of the limiting plate and on the telescopic rod.

[0009] The second clamping mechanism is located below the first clamping mechanism. The second clamping mechanism includes an adjusting member that is movably connected to the fixed plate. An elastic component for controlling the leftward rotation of the adjusting member is provided between the adjusting member and the fixed plate. The adjusting member includes a toggle rod extending to the upper left and a toggle piece extending to the right. The end of the toggle rod is located between the fixed plate and the guide member, and a through hole is provided at the front right side of the toggle piece. A rotating shaft is provided on the front side of the adjusting member, and an upwardly bent pressure rod is provided at the front end of the rotating shaft. A swing pin is provided at the rear end of the rotating shaft, and the rear end of the swing pin is located in the through hole of the toggle piece.

[0010] To prevent the drainage bottle from falling off the support plate, in some embodiments, a limiting slot is provided at the top of the support plate.

[0011] To prevent the adjusting cylinder from coming out, in some embodiments, a limiting groove is provided at the left end of the guide.

[0012] Further expanding upon the above scheme, the elastic component includes a limiting pin and a torsion spring. The limiting pin is located at the front end of the fixed plate and above the actuating piece. The torsion spring is located between the fixed plate and the adjusting member. One end of the torsion spring is connected to the actuating rod, and the other end is connected to the limiting pin.

[0013] To facilitate adjustment of the telescopic rod, in some embodiments, an adjustment handle is connected to the left end of the telescopic rod.

[0014] Compared to existing technologies, this application achieves at least the following beneficial effects: The device, using a fixed housing combined with a second clamping mechanism, can stably fix the drainage bottle to the edge of the bed, reducing shaking even if accidentally touched. When the patient needs to walk, the fixed housing combined with the first clamping mechanism can also be used to fix it to the IV stand, allowing the patient to move the drainage bottle via the wheeled IV stand, reducing shaking and increasing stability. Using this device can improve the stability of the drainage bottle placed beside the bed or on the IV stand, preventing the drainage tube from loosening and causing a series of complications. Attached Figure Description

[0015] One or more embodiments of this application will now be described by way of example only with reference to the accompanying drawings, in which:

[0016] Figure 1 This is a perspective view of a closed thoracic drainage bottle fixation device according to one embodiment of this application;

[0017] Figure 2 for Figure 1 A three-dimensional schematic diagram of the closed thoracic drainage bottle fixation device of the embodiment from another angle;

[0018] Figure 3 This is a three-dimensional working diagram of the closed thoracic drainage bottle fixation device of this application clamped at the edge of the hospital bed;

[0019] Figure 4 This is a three-dimensional working diagram of the closed thoracic drainage bottle fixing device of this application clamped on the infusion stand.

[0020] Figure 5 This is an exploded view of the fixing housing and adjusting components of the closed thoracic drainage bottle fixing device of this application.

[0021] The following are the labels in the diagram: 1. Support plate; 11. Limiting slot; 2. Adjusting cylinder; 3. Top plate; 31. Bayonet; 311. Bayonet groove; 4. Pressure block; 5. Upper pressure plate; 6. Right side plate; 7. Lower pressure plate; 8. Fixing plate; 81. Protrusion; 82. Pin; 9. Fixed clamp; 10. Pad; 101. Pad groove; 12. Vertical plate; 13. Slotted clamp; 14. Spring; 15. Limiting plate; 16. Guide component; 17. Actuating rod; 18. Limiting pin; 19. Actuating piece; 191. Through hole; 192. Protrusion; 20. Rotating shaft; 21. Pressure rod; 22. Clamping component; 23. Swing pin; 24. Left side plate; 25. Telescopic rod; 26. Universal joint; 27. Adjusting rod; 28. Bed edge; 29. ​​Support rod; 30. Torsion spring. Detailed Implementation

[0022] The present application will now be described in detail with reference to exemplary embodiments shown in the accompanying drawings. However, it should be understood that the present application may be implemented in many different forms and should not be construed as limited to the embodiments set forth herein. These embodiments are provided herein to make the disclosure of the present application more complete and to fully convey the concept of the present application to those skilled in the art.

[0023] In the description of this application, it should be understood that the terms "center", "lateral", "longitudinal", "front", "rear", "left", "right", "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this application.

[0024] This addresses the shortcomings of existing technologies, such as the poor stability of closed chest drainage bottles when patients are lying down or walking. After careful analysis, the inventors discovered that the main reason for the aforementioned problems lies in the fact that existing closed chest drainage bottles, in order to be fixed to the edge of the bed, have a relatively simple and direct structure, such as using hooks or slots, primarily considering compatibility with the bed edge. These existing drainage bottles are simply suspended by two plastic hooks, which can cause the bottle to shake or even loosen and fall off the bed edge if touched, resulting in an insecure fixation of the drainage tube. This can easily lead to the drainage tube dislodging or shifting, causing complications such as pneumothorax and pleural infection. Secondly, existing drainage bottles do not consider the need for fixation during slow patient movement. Therefore, patients often lift the bottle by the hooks or hold a cloth strap attached to the hooks, which easily exacerbates the shaking of the bottle. When using adhesive tape to fix the drainage tube, the tape can easily loosen due to the long indwelling time of the chest tube and the patient's pulling during movement, leading to the drainage tube shifting or dislodging. Therefore, existing drainage bottles suffer from excessive shaking and a lack of diverse fixation methods. Based on the above analysis, the inventors made structural improvements to the part that fixes the drainage bottle.

[0025] like Figure 1 As shown, in one embodiment of the closed thoracic drainage bottle fixation device of this application, the device includes a right-angled fixing shell with a certain length. The fixing shell includes a vertically and laterally arranged rectangular fixing plate 8. Two support plates 1 are welded to the rear end of the fixing plate 8, as shown. Figure 2 As shown, the support plate 1 can be a rectangular structure, with its length longer than the width of the drainage bottle. Two support plates 1 are equidistantly distributed, and the drainage bottle is placed between them. The drainage bottle is placed between the two support plates 1, and the cap on the top of the drainage bottle will contact the top surface of the support plate 1 to restrict the drainage bottle from moving downward. The top of the fixing plate 8 is welded with a top plate 3, and the front end of the top plate 3 is welded with an upper pressure plate 5. The front end of the upper pressure plate 5 has a slot 31 extending to the rear end of the top plate 3 for locking into the support rod 29 of the infusion stand. A pad 10 is provided on the right side of the bottom of the slot 31 to increase the contact area with the support rod 29. A square limiting plate 15 is welded to the bottom of the left side of the top plate 3. The front end face of the limiting plate 15 is coplanar with the front end face of the top plate 3. An arc-shaped (or tile-shaped) guide 16 is welded to the left end of the limiting plate 15. The guide 16 extends to the left for a certain length, and its left end face is an arc-shaped bevel. There is a gap between the guide 16 and the fixing plate 8.

[0026] A first clamping mechanism for holding the support rod 29 of the infusion stand is located on the left side of the bottom of the bayonet 31. The clamping mechanism includes a slotted clamp 13, which is obtained by cutting a slotted steel. Its opening faces right. A pressure block 4 is installed inside the slotted clamp 13. Both the pad 10 and the pressure block 4 are made of plastic. A hole is opened on the left side of the slotted clamp 13, and a horizontally arranged telescopic rod 25 is hinged in the hole. A hole is also opened at the right end of the limiting plate 15. 5. The telescopic rod 25 is fixed in this position by passing through the limiting plate 15 through the hole. A spring 14 is sleeved on the telescopic rod 25 between the limiting plate 15 and the slotted clamp 13. The elastic force of the spring 14 can push the slotted clamp 13 to the right, causing the pressure block 4 to move towards the pad block 10, squeezing the support rod 29 in the bayonet 31, generating friction, and fixing the device to the support rod 29 of the infusion stand; an adjusting cylinder 2 is welded to the left side of the limiting plate 15 and the telescopic rod 25; Figure 1 As shown, the adjusting cylinder 2 is at the end position of the left end of the guide member 16. At this time, the telescopic rod 25 moves to the left, and the slotted clamp 13 compresses the spring 14 to the left, causing it to retract. (Reference) Figure 3 and Figure 4 Rotate the telescopic rod 25, adjust the cylinder 2 to move to the right along the inclined surface of the guide 16, the spring 14 expands and pushes the slotted clamp 13 to the right, so that the slotted clamp 13 and the pressure block 4 move to the right and contact the support rod 29 and squeeze the support rod 29;

[0027] The second clamping mechanism is located inside the fixed housing, below the first clamping mechanism, and includes an adjusting member hinged to the fixed plate 8. An elastic component for controlling the leftward rotation of the adjusting member is provided between the adjusting member and the fixed plate 8. Specifically, a circular protrusion 81 protruding forward from the fixed plate 8 is welded to the front end of the fixed plate 8, and a pin 82 is welded to the front end of the protrusion 81. A through hole 191 is provided on the front end face of the adjusting member, through which the adjusting member is fitted onto the pin 82. A flange preventing the adjusting member from dislodging is connected to the front end of the pin 82. The adjusting member includes a lever 17 extending upward to the left and a lever 19 extending to the right. The ends are fixedly connected, and the through hole 191 of the adjusting component is opened at the connection between the toggle lever 17 and the toggle piece 19; wherein, the end of the toggle lever 17 is located between the fixed plate 8 and the guide member 16, and the toggle lever 17 will be pushed when the adjusting cylinder 2 moves to the right; the toggle piece 19 has a through hole 191 at the front end of the right side; the front side of the adjusting component is provided with a rotating shaft 20, the front end of the rotating shaft 20 is provided with an upwardly bent pressure rod 21, the top end of the pressure rod 21 is connected with a clamping member 22, the clamping member 22 is a rectangular, circular or other geometrically shaped plastic block, which is threaded or glued to the pressure rod 21 and can be replaced; the rear end of the rotating shaft 20 is provided with a swing pin 23, and the rear end of the swing pin 23 is located in the through hole 191 of the toggle piece 19.

[0028] refer toFigure 1 When the adjusting cylinder 2 moves to the left end of the guide 16, the adjusting component swings counterclockwise under the control of the elastic component. The adjusting component's actuating plate 19 drives the swing pin 23 to swing upward through the through hole 191 at its right front end. The swing pin 23 drives the rotating shaft 20 to rotate, thereby causing the pressure rod 21 on the rotating shaft 20 to swing downward, making more space to clamp onto the bed edge 28; Reference Figure 4 and Figure 5 The right end of the spring 14 applies a thrust to the slotted clamp 13. When the telescopic rod 25 is rotated, the adjusting cylinder 2 rotates accordingly. Through the push of the spring force, the adjusting cylinder 2 will move to the right along the inclined surface of the guide 16. The rotation combined with the trajectory of moving to the right will cause the adjusting cylinder 2 and the lever 17 to contact and push the lever 17 to move clockwise, thereby causing the lever 19 to swing clockwise. The lever 19 presses the swing pin 23 downward through the through hole 191 at its right front end, causing the rotating shaft 20 to rotate in the opposite direction, causing the pressure rod 21 to swing upward, and cooperating with the pressure plate 5 to clamp the bed edge 28.

[0029] refer to Figure 2 The top of the support plate 1 has a limiting slot 11. After the drainage bottle is placed between the two support plates 1, its two fixing ears on the left and right sides will be locked in the limiting slot 11, which effectively prevents the drainage bottle from slipping off the support plate 1.

[0030] A right-angled fixing bracket 9 is welded to the bottom right side of the bayonet 31. Its rear end is welded to the fixing plate 8. The front end and left end of the fixing bracket 9 are open, and the pad 10 is disposed in the fixing bracket 9. In order to increase the contact area of ​​the pad 10, the pressure block 4 and the support rod 29 of the infusion stand and increase the friction, an arc-shaped recessed pad groove 101 is opened on the left end face of the pad 10, and an arc-shaped recessed pressure groove (not shown) is opened on the right end face of the pressure block 4. The support rod 29 of the infusion stand is wrapped by the pad groove 101 and the pressure groove, which increases the friction and prevents the drainage bottle from sliding off the support rod 29 even if it is heavy, thus ensuring stability. Correspondingly, a clearance groove matching the pad groove 101 is opened at the bottom of the fixing bracket 9, and clearance grooves matching the pressure groove are opened at the top and bottom of the groove-shaped bracket 13.

[0031] Considering that the left end of the guide 16 is inclined and has an arc-shaped surface, and the side of the adjusting cylinder 2 that contacts it is also an arc-shaped surface, the contact area between the guide 16 and the adjusting cylinder 2 is very small. With the elastic force of the spring 14, the adjusting cylinder 2 may slip off the left end of the guide 16 if the device is not installed properly. Therefore, a shallow arc-shaped limiting groove (not numbered in the figure) is provided on the left end of the guide 16. The adjusting cylinder 2 is located in the limiting groove to prevent it from suddenly slipping off the left end of the guide 16.

[0032] The function of the elastic component is to drive the entire adjusting component to rotate counterclockwise by a certain angle after the adjusting cylinder 2 is no longer in contact with the actuating lever 17, thereby opening the pressure lever 21 according to the aforementioned principle. To achieve this effect, the elastic component includes a limiting pin 18 and a torsion spring 30. The limiting pin 18 is welded to the front end of the fixed plate 8, above the actuating piece 19. The torsion spring 30 is located between the fixed plate 8 and the adjusting component, and is sleeved on the protrusion 71 of the fixed plate 8. One end of the torsion arm of the torsion spring 30 is bent and engaged with the actuating lever 17, while the other end of the torsion arm is bent into a circle and engaged with the limiting pin 18. When the adjusting cylinder 2 moves to the right and contacts the actuating lever 17, the torsion spring 30 is compressed; when the adjusting cylinder 2 moves to the left and separates from the actuating lever 17, the torsion spring 30 expands, driving the entire adjusting component to rotate counterclockwise by a certain angle.

[0033] To improve the strength of the fixed shell, a rectangular left side plate 24 is welded to the left side of the top plate 3, and a rectangular right side plate 6 is welded to the right side.

[0034] A through hole 191 is provided in the upper middle part of the left end of the left side plate 24. The left end of the telescopic rod 25 rotatably passes through the through hole 191 in the upper middle part of the limiting plate 15, preventing the telescopic rod 25 from swinging. An adjustment handle is connected to the left end of the telescopic rod 25. The adjustment handle includes a universal joint 26 and an adjustment rod 27. The left end of the universal joint 26 is fixedly connected to the cylindrical adjustment rod 27, and the right end is fixedly connected to the left end of the telescopic rod 25. The addition of the adjustment handle makes it easier to apply force to rotate the telescopic rod 25.

[0035] A rectangular vertical plate 12 is welded to the bottom of the slotted clamp 13 and the front end of the fixing plate 8. Coaxial through holes 191 are provided in the lower middle part of the left side plate 24 and the lower middle part of the vertical plate 12. The left end of the rotating shaft 20 is rotatably located in the through hole 191 in the lower middle part of the left side plate 24, and the right end is rotatably located in the through hole 191 in the lower middle part of the vertical plate 12.

[0036] A rectangular lower pressure plate 7 is welded between the fixed clamp 9 and the right side plate 6. The spacing between the lower pressure plate 7 and the upper pressure plate 5 is designed according to the thickness of the bed edge 28.

[0037] When using this device, if it needs to be installed at the edge of the bed at point 28, please refer to... Figure 1 and Figure 3By adjusting the handle and rotating the telescopic rod 25, the adjusting cylinder 2 on the telescopic rod 25 moves along the arc-shaped inclined surface at the left end of the guide 16 to the shallow arc-shaped limiting groove at the left end of the guide 16. After the adjusting cylinder 2 no longer contacts the actuating rod 17 of the adjusting member, the torsion spring 30 drives the adjusting member to swing counterclockwise by a certain angle. The through hole 191 on the actuating plate 19 moves upward, causing the swing pin 23 to swing upward (wherein, an arc-shaped metal protrusion 192 is welded above the front end face of the through hole 191 of the actuating plate 19, which not only prevents the swing pin 23 from completely dislodging, but also allows it to press down on the top of the swing pin 23 when pressed down). The swing pin 23 drives the rotating shaft 20 and the pressure rod 21 to move... The downward swing creates more space between the upper pressure plate 5 and the clamping member 22. Then, the upper pressure plate 5 and the lower pressure plate 7 are pre-locked into the bed edge 28. The telescopic rod 25 is rotated by adjusting the handle, so that the adjusting cylinder 2 pushes the slotted clamp 13 through the spring 14 to reset along the arc-shaped inclined surface of the guide member 16. During the reset, the toggle rod 17 is pushed to the right, so that the entire adjusting member swings clockwise by a certain angle. The through hole 191 on the toggle plate 19 moves downward, causing the swing pin 23 to swing downward. The swing pin 23 drives the rotating shaft 20 and the pressure rod 21 to swing upward to reset. The clamping member 22 on the corner rod cooperates with the upper pressure plate 5 to press the bottom of the bed edge 28, completing the fixation.

[0038] When the device needs to be installed on the support rod 29 of the infusion stand, the telescopic rod 25 is rotated by adjusting the handle. The adjusting cylinder 2 on the telescopic rod 25 moves along the arc-shaped inclined surface of the left end of the guide 16 to the shallow arc-shaped limiting groove at the left end of the guide 16. At the same time, the groove-shaped clamp 13 at the right end of the telescopic rod 25 also moves to the left, compressing the spring 14. Then, the device is clamped onto the support rod 29 through the bayonet 31. The telescopic rod 25 is rotated by adjusting the handle again, so that the adjusting cylinder 2 pushes the groove-shaped clamp 13 along the arc-shaped inclined surface of the guide 16 by the spring 14 and resets. The pressure block 4 on the groove-shaped clamp 13 contacts and squeezes the support rod 29 by the push of the spring 14, generating friction and fixing it on the support rod 29.

[0039] On the right side of the rear end of the locking slot 31, an arc-shaped locking groove 311 is provided. The locking groove 311 is adapted to the groove 101 of the pad block 10. When the pressure block 4 presses down on the support rod 29, the support rod 29 enters the locking groove 311, further preventing the support rod 29 from coming out of the device. Then, the patient walks slowly while holding onto the IV stand with wheels at the bottom, which not only secures the drainage bottle but also prevents the patient from falling.

[0040] When this device is fixed to the edge of the bed using a fixed housing combined with a second clamping mechanism, the drainage bottle will not easily sway during the patient's daily activities, compared to being suspended by a hook. For example, when the patient turns over in bed, adjusts their sleeping position, or sits up slightly, as long as the movement is not very large, the bed edge 28 can provide a relatively stable support point for the device. When fixed to the support rod 29 of the IV stand using a fixed housing combined with a first clamping mechanism, and moved along the support rod 29 of the IV stand with wheels, the drainage bottle will not swing back and forth, reducing swaying. This satisfies the patient's activity needs, increases stability, and does not affect the continuity of drainage. Furthermore, the overall structure of this device is lightweight and can be stored in a drawer or other storage box when not in use, making the ward space look neater and more organized, and facilitating overall management and cleaning by nursing staff.

[0041] It should be understood that all the above embodiments are exemplary and not restrictive. Various modifications or variations made by those skilled in the art to the specific embodiments described above under the concept of this application should be within the protection scope of this application.

Claims

1. A closed thoracic drainage bottle fixation device, characterized in that, include: The fixed housing includes a fixed plate, and two support plates for placing the drainage bottle are provided at the rear end of the fixed plate; a top plate is provided at the top of the fixed plate, and an upper pressure plate is provided at the front end of the top plate. A slot extending to the rear end of the top plate is provided at the front end of the upper pressure plate, and a pad is provided on the right side of the bottom of the slot. A limiting plate is provided at the bottom left side of the top plate, and an arc-shaped guide is provided at the left end of the limiting plate. The left end of the guide is an arc-shaped inclined surface. The first clamping mechanism is located on the left side of the bottom of the bayonet. The clamping mechanism includes a slotted clamp seat, a pressure block is provided inside the slotted clamp seat, and a telescopic rod is movably connected to the left side of the slotted clamp seat. The telescopic rod movably passes through the limiting plate, and a spring is sleeved between the limiting plate and the slotted clamp seat and on the telescopic rod. An adjusting cylinder is provided on the left side of the limiting plate and on the telescopic rod. The second clamping mechanism is located below the first clamping mechanism. The second clamping mechanism includes an adjusting member that is movably connected to the fixed plate. An elastic component for controlling the leftward rotation of the adjusting member is provided between the adjusting member and the fixed plate. The adjusting member includes a toggle rod extending to the upper left and a toggle piece extending to the right. The end of the toggle rod is located between the fixed plate and the guide member, and a through hole is provided at the front right side of the toggle piece. A rotating shaft is provided on the front side of the adjusting member, and an upwardly bent pressure rod is provided at the front end of the rotating shaft. A swing pin is provided at the rear end of the rotating shaft, and the rear end of the swing pin is located in the through hole of the toggle piece.

2. The apparatus according to claim 1, characterized in that, A limiting slot is provided at the top of the support plate.

3. The apparatus according to claim 1, characterized in that, A fixed clamp is provided at the bottom right side of the bayonet, and the pad is located in the fixed clamp.

4. The apparatus according to claim 1, characterized in that, A limiting groove is provided at the left end of the guide component.

5. The apparatus according to claim 1, characterized in that, The elastic component includes a limiting pin and a torsion spring. The limiting pin is located at the front end of the fixed plate and above the actuating piece. The torsion spring is located between the fixed plate and the adjusting member. One end of the torsion spring is connected to the actuating rod, and the other end is connected to the limiting pin.

6. The apparatus according to claim 3, characterized in that, The top plate is connected to a left side plate on the left side and a right side plate on the right side.

7. The apparatus according to claim 6, characterized in that, The telescopic rod moves through the limiting plate, and an adjustment handle is connected to the left end of the telescopic rod.

8. The apparatus according to claim 6, characterized in that, A vertical plate is connected to the bottom of the slotted clamp and the front end of the fixing plate, and the left and right ends of the rotating shaft are movably connected to the left side plate and the vertical plate, respectively.

9. The apparatus according to claim 6, characterized in that, A pressure plate is provided between the fixed clamp and the right side plate.

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