Adjustable guide device for molten glass

Abstract

The utility model discloses an adjustable guide device for molten glass, which relates to the field of glass bottle production, and has the technical key points that the adjustable guide device comprises a support frame and a molten glass guide cylinder, the support frame is arranged in a rank machine, one end of the support frame is connected with an adjusting seat in a sliding manner, one side of the adjusting seat is provided with a connecting plate, and the connecting plate is connected with the molten glass guide cylinder. The glass liquid guide cylinder is mounted on one side of the connecting plate, and aims to solve the problems that an existing guide device cannot be adjusted, if a glass liquid section is relatively long and the interval between the guide device and the material receiving device is too short, a detection device cannot capture a complete image of the whole glass liquid section, and when the required glass liquid section of a glass bottle production batch is relatively short, the detection device cannot capture the complete image of the whole glass liquid section. And if the distance between the guide device and the material receiving device is relatively far, the glass liquid section is easy to be influenced by gravity, friction force or other external force due to an overlong moving path after passing through the guide device, so that the technical problem that the glass liquid section deviates transversely or longitudinally when reaching the material receiving device is solved.

Description

Technical Field

[0001] The utility model relates to the field of glass bottle production, in particular to an adjustable guiding device for glass liquid. Background Art

[0002] Glass liquid refers to the glass in a molten state during the glass manufacturing process. It is a liquid formed by melting a variety of raw materials (such as quartz sand, sodium carbonate, limestone, etc.) at high temperatures, and the quencher is responsible for processing the glass liquid. The quencher has a shearing device, a guide device, a receiving device and a mold. The glass liquid is usually cut by a special shearing device. These tools can be mechanical scissors, cutting wheels or flame cutting devices. The purpose of the shearing operation is to cut the continuously flowing glass liquid into sections of a preset length, so that the molten glass liquid is cut into the required length, and then the sheared glass liquid section is guided to the receiving device through the guide device for receiving, and finally gradually enters the mold for molding.

[0003] When the glass liquid segment enters the material receiving device from the guide device, it is usually photographed by a detection device to detect whether the length of the glass liquid segment meets the requirements. However, the existing guide device is not adjustable. When the required glass liquid segment of the production batch is longer, if the interval between the guide device and the material receiving device is too short, the detection device cannot capture the complete image of the entire glass liquid segment, and cannot accurately determine whether the length of the glass liquid segment after cutting meets the requirements. When the required glass liquid segment of the production batch is shorter, if the distance between the guide device and the material receiving device is far, after the glass liquid segment passes through the guide device, the excessively long moving path makes the glass liquid segment easily affected by gravity, friction or other external forces, resulting in lateral or longitudinal displacement when it reaches the material receiving device. This displacement will affect the molding accuracy of the glass bottle, resulting in quality problems such as skewed bottle body and uneven size after the glass liquid segment is formed. Utility Model Content

[0004] In order to solve the above-mentioned technical problems, the utility model provides an adjustable guiding device for molten glass, aiming to solve the problem that the existing guiding device cannot be adjusted. If the molten glass segment is long, the interval between the guiding device and the material receiving device is too short, resulting in the detection device being unable to capture a complete image of the entire molten glass segment. When the required molten glass segment of a glass bottle production batch is short, if the distance between the guiding device and the material receiving device is far, after the molten glass segment passes through the guiding device, the excessively long moving path makes the molten glass segment easily affected by gravity, friction or other external forces, resulting in lateral or longitudinal displacement when it reaches the material receiving device.

[0005] The technical solution of the utility model to solve the above technical problems is:

[0006] A kind of adjustable guiding device for glass liquid comprises a supporting frame and a glass liquid guiding cylinder, the supporting frame is installed in a row machine, one end of the supporting frame is slidably connected with an adjusting seat, one side of the adjusting seat is provided with a connecting plate, the glass liquid guiding cylinder is installed on one side of the connecting plate, the top of the glass liquid guiding cylinder is provided with a feeding end, the feeding end faces a shearing device, the bottom of the glass liquid guiding cylinder is provided with a discharging end, the discharging end faces a receiving device, one side of the supporting frame is provided with a plurality of first fixing holes, the plurality of first fixing holes are vertically arranged at equal intervals, a second fixing hole is provided inside the adjusting seat, the second fixing hole passes through both sides of the adjusting seat, a first fixing bolt is passed through the second fixing hole, one end of the first fixing bolt is threadedly matched with any of the second fixing holes.

[0007] The adjusting seat is slidably connected to the supporting frame so as to change the position of the glass liquid guide cylinder. When the glass material segment is long, the adjusting seat moves upward, thereby driving the feeding end of the glass liquid guide cylinder to approach the shearing device, so that the discharging end of the glass liquid guide cylinder is away from the receiving device. After the first fixing bolt passes through the second fixing hole, it cooperates with the corresponding first fixing hole thread, so that the detection device can capture the complete image of the longer glass liquid segment. When the glass material segment is short, the adjusting seat moves downward, and the adjusting seat drives the downward movement of the glass liquid guide cylinder, thereby driving the feeding end of the glass liquid guide cylinder away from the shearing device, so that the discharging end of the glass liquid guide cylinder is close to the receiving device. After the first fixing bolt passes through the second fixing hole, it cooperates with the corresponding first fixing hole thread, thereby shortening the receiving path of the shorter glass material segment, so that the receiving device can receive the glass liquid segment faster, avoiding the excessively long moving path that makes the guided glass liquid segment easily affected by gravity, friction or other external forces, thereby improving the production quality.

[0008] Furthermore, in the present application, two extension blocks are provided on the other side of the adjustment seat, a height guide slider is provided on one side of the two extension blocks, height guide grooves are provided on both sides of the support frame, and the height guide sliders of the two extension blocks are respectively slidably matched with the two height guide grooves.

[0009] When the height of the glass liquid guide cylinder needs to be adjusted, the operator can push or pull the adjustment seat to make the height guide slider of the extension block move up and down along the height guide slot. The sliding cooperation between the height guide slider and the height guide slot ensures that the movement of the adjustment seat in the vertical direction is controlled, prevents the adjustment seat from moving in an unexpected direction, and ensures that the adjustment process is stable and reliable.

[0010] Further, in the present application, two first protective plates are provided at the bottom of the connecting plate, the two first protective plates are separated to form a first protective interval, and the other end of the first fixing bolt is located in the first protective interval.

[0011] When the glass liquid guide cylinder is in operation, the first fixing bolt may be hit from different directions. When the first fixing bolt is located in the first protection interval formed by the two first protection plates, the first fixing bolt will not be directly exposed to the external environment. The first protection plate can play a role of protection and isolation, reducing the risk of damage and improving the safety of the adjustment seat after fixation.

[0012] Further, in the present application, one side of the connecting plate is rotatably connected with an adjusting shaft, one end of the adjusting shaft is provided with a rotating plate, and the glass liquid guide cylinder is installed on one side of the rotating plate.

[0013] Furthermore, in the present application, a plurality of third fixing holes are provided on one side of the connecting plate, and the plurality of third fixing holes are distributed in a ring around the adjusting shaft. A fourth fixing hole is opened inside the rotating plate, and a second fixing bolt is passed through the fourth fixing hole, and the second fixing bolt is threadedly engaged with any one of the third fixing holes.

[0014] Further, in the present application, two second protective plates are provided at the bottom of the rotating plate, the two second protective plates are separated to form a second protective interval, and the adjusting shaft is located in the second protective interval.

[0015] Furthermore, in the present application, a support plate is provided on one side of the rotating plate, a guide movable groove is opened in the support plate, the glass liquid guide cylinder is slidably matched with the guide movable groove, an adjustment plate is provided on the outer edge of the glass liquid guide cylinder, and the bottom of the adjustment plate is slidably matched with the support plate.

[0016] Furthermore, in the present application, an adjusting slot is provided on the top of the support plate, the adjusting slot is close to the guide movable slot, and an adjusting slider is provided on the bottom of the adjusting plate, the adjusting slider is slidably matched with the adjusting slot.

[0017] Furthermore, in the present application, a plurality of first adjustment holes are opened on the top of the support plate, a second adjustment hole is opened inside the adjustment plate, a third fixing bolt is passed through the second adjustment hole, and one end of the third fixing bolt is threadedly engaged with any one of the first adjustment holes.

[0018] Furthermore, in the present application, a movable handle is provided on one side of the support plate, and the shape of the movable handle is N-shaped.

[0019] The utility model has the following beneficial effects:

[0020] The adjusting seat is slidably connected to the supporting frame so as to change the position of the glass liquid guide cylinder. When the glass material segment is long, the adjusting seat moves upward, thereby driving the feeding end of the glass liquid guide cylinder to approach the shearing device, so that the discharging end of the glass liquid guide cylinder is away from the receiving device. After the first fixing bolt passes through the second fixing hole, it cooperates with the corresponding first fixing hole thread, so that the detection device can capture the complete image of the longer glass liquid segment. When the glass material segment is short, the adjusting seat moves downward, and the adjusting seat drives the downward movement of the glass liquid guide cylinder, thereby driving the feeding end of the glass liquid guide cylinder away from the shearing device, so that the discharging end of the glass liquid guide cylinder is close to the receiving device. After the first fixing bolt passes through the second fixing hole, it cooperates with the corresponding first fixing hole thread, thereby shortening the receiving path of the shorter glass material segment, so that the receiving device can receive the glass liquid segment faster, avoiding the excessively long moving path that makes the guided glass liquid segment easily affected by gravity, friction or other external forces, thereby improving the production quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the utility model.

[0022] Figure 2 It is a structural schematic diagram of the first protection interval of the utility model.

[0023] Figure 3 It is a structural schematic diagram of the rotating plate of the utility model.

[0024] Figure 4 It is a structural schematic diagram of the adjustment plate of the utility model.

[0025] Wherein, the reference numerals are:

[0026] 1. Support frame; 2. Adjustment seat; 3. First fixing hole; 4. Second fixing hole; 5. Height guide slide; 6. Extension block; 7. Height guide slider; 8. Connecting plate; 9. First protection plate; 10. First fixing bolt; 11. Glass liquid guide cylinder; 12. Feed end; 13. Discharge end; 14. First protection interval; 15. Adjustment shaft; 16. Third fixing hole; 17. Fourth fixing hole; 18. Second fixing bolt; 19. Support plate; 20. Guide movable groove; 21. Adjustment plate; 22. First adjustment hole; 23. Second adjustment hole; 24. Third fixing bolt; 25. Adjustment slide; 26. Movable handle; 27. Adjustment slider; 28. Second protection interval; 29. ​​Rotating plate; 30. Second protection plate. DETAILED DESCRIPTION

[0027] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0028] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0029] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0030] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0031] Reference Figure 1-Figure 4In some specific embodiments, an adjustable guiding device for glass liquid includes a support frame 1 and a glass liquid guide cylinder 11, the support frame 1 is installed in a row machine, one end of the support frame 1 is slidably connected with an adjusting seat 2, one side of the adjusting seat 2 is provided with a connecting plate 8, the glass liquid guide cylinder 11 is installed on one side of the connecting plate 8, the top of the glass liquid guide cylinder 11 is provided with a feeding end 12, the feeding end 12 faces the shearing device, the bottom of the glass liquid guide cylinder 11 is provided with a discharging end 13, the discharging end 13 faces the receiving device, one side of the support frame 1 is provided with a plurality of first fixing holes 3, the plurality of first fixing holes 3 are vertically arranged at equal intervals, the inside of the adjusting seat 2 is provided with a second fixing hole 4, the second fixing hole 4 passes through both sides of the adjusting seat 2, a first fixing bolt 10 is passed through the second fixing hole 4, and one end of the first fixing bolt 10 is threadedly matched with any second fixing hole 4.

[0032] Through the above technical solution, the adjustment seat 2 is slidably connected to the support frame 1, so as to change the position of the glass liquid guide cylinder 11. When the glass material segment is long, the adjustment seat 2 moves upward, thereby driving the feeding end 12 of the glass liquid guide cylinder 11 to approach the shearing device, so that the discharging end 13 of the glass liquid guide cylinder 11 is away from the receiving device. After the first fixing bolt 10 passes through the second fixing hole 4, it is threadedly matched with the corresponding first fixing hole 3, so that the detection device can capture the complete image of the longer glass liquid segment. When the glass material segment is short, the adjustment seat 2 moves downward. The adjusting seat 2 drives the glass liquid guide cylinder 11 to move downward, thereby driving the feeding end 12 of the glass liquid guide cylinder 11 away from the shearing device, so that the discharging end 13 of the glass liquid guide cylinder 11 is close to the receiving device. After the first fixing bolt 10 passes through the second fixing hole 4, it is threadedly engaged with the corresponding first fixing hole 3, thereby shortening the receiving path of the shorter glass material segment, so that the receiving device can receive the glass liquid segment faster, avoiding the excessively long moving path that makes the guided glass liquid segment easily affected by gravity, friction or other external forces, thereby improving the production quality.

[0033] In addition, the equal spacing of the plurality of first fixing holes 3 provides adjustment options of different lengths, so that the glass liquid guide cylinder 11 can adapt to the requirements of different production batches for the length of the glass liquid segment.

[0034] Reference Figure 1-Figure 2 In some specific embodiments, two extension blocks 6 are provided on the other side of the adjustment seat 2, and a height guide slider 7 is provided on one side of the two extension blocks 6. Height guide slots 5 are opened on both sides of the support frame 1, and the height guide sliders 7 of the two extension blocks 6 are slidably matched with the two height guide slots 5 respectively.

[0035] Through the above technical solution, when it is necessary to adjust the height of the glass liquid guide cylinder 11, the operator can push or pull the adjustment seat 2 to make the height guide slider 7 of the extension block 6 move up and down along the height guide groove 5. The sliding cooperation between the height guide slider 7 and the height guide groove 5 ensures that the movement of the adjustment seat 2 in the vertical direction is controlled, prevents the adjustment seat 2 from moving in an unexpected direction, and ensures that the adjustment process is stable and reliable.

[0036] Reference Figure 1-Figure 3 In some specific embodiments, two first protective plates 9 are provided at the bottom of the connecting plate 8 , and the two first protective plates 9 are spaced apart to form a first protective interval 14 , and the other end of the first fixing bolt 10 is located in the first protective interval 14 .

[0037] Through the above technical solution, when the glass liquid guide cylinder 11 is working, the first fixing bolt 10 may be hit from different directions. When the first fixing bolt 10 is located in the first protection interval 14 formed by the two first protection plates 9, the first fixing bolt 10 will not be directly exposed to the external environment. The first protection plate 9 can play a role of protection and isolation, reducing the risk of damage and improving the safety of the adjustment seat 2 after fixation.

[0038] Reference Figure 3 In some specific embodiments, one side of the connecting plate 8 is rotatably connected to an adjusting shaft 15 , one end of the adjusting shaft 15 is provided with a rotating plate 29 , and the glass liquid guide cylinder 11 is installed on one side of the rotating plate 29 .

[0039] Through the above technical solution, when it is necessary to adjust the direction of the glass liquid guide cylinder 11, the operator can manually rotate the rotating plate 29, drive the rotating plate 29 to drive the glass liquid guide cylinder 11 to rotate around the adjustment shaft 15, and provide the glass liquid guide cylinder 11 with the ability to adjust the angle in the horizontal plane, so that the glass liquid guide cylinder 11 can correspond to shearing devices at different angles.

[0040] Reference Figure 3 In some specific embodiments, a plurality of third fixing holes 16 are provided on one side of the connecting plate 8, and the plurality of third fixing holes 16 are distributed in a ring around the adjusting shaft 15. A fourth fixing hole 17 is opened inside the rotating plate 29, and a second fixing bolt 18 is passed through the fourth fixing hole 17, and the second fixing bolt 18 is threadedly engaged with any of the third fixing holes 16.

[0041] Through the above technical solution, when it is necessary to fix the position of the rotating plate 29, the operator can pass the second fixing bolt 18 through the fourth fixing hole 17 of the rotating plate 29, and match the second fixing bolt 18 with any third fixing hole 16 on the connecting plate 8, thereby ensuring the stability of the rotating plate 29 after adjustment and preventing displacement caused by vibration or external force.

[0042] Reference Figure 1-Figure 3 In some specific embodiments, two second protection plates 30 are provided at the bottom of the rotating plate 29 , and the two second protection plates 30 are separated to form a second protection interval 28 , and the adjustment shaft 15 is located in the second protection interval 28 .

[0043] Through the above technical solution, the two second protection plates 30 can prevent the adjustment shaft 15 from being accidentally hit or contaminated, which helps to extend the service life of the adjustment shaft 15 and reduce downtime and maintenance costs caused by shaft damage.

[0044] Reference Figure 3-Figure 4 In some specific embodiments, a support plate 19 is provided on one side of the rotating plate 29, a guide movable groove 20 is opened in the support plate 19, the glass liquid guide cylinder 11 is slidably matched with the guide movable groove 20, and an adjustment plate 21 is provided on the outer edge of the glass liquid guide cylinder 11, and the bottom of the adjustment plate 21 is slidably matched with the support plate 19.

[0045] Through the above technical solution, the movable guide groove 20 opened in the support plate 19 provides a support point for the glass liquid guide cylinder 11, and allows the glass liquid guide cylinder 11 to slide in the movable guide groove 20, so that the position of the glass liquid guide cylinder 11 can be fine-tuned, thereby further adapting to the position of the shearing device, thereby improving the shearing accuracy and production efficiency.

[0046] Reference Figure 3-Figure 4 In some specific embodiments, an adjusting slot 25 is provided on the top of the support plate 19 , and the adjusting slot 25 is close to the guide movable slot 20 . An adjusting slider 27 is provided on the bottom of the adjusting plate 21 , and the adjusting slider 27 is slidably matched with the adjusting slot 25 .

[0047] Through the above technical solution, when the position of the glass liquid guide cylinder 11 needs to be adjusted, the operator can move the adjustment plate 21 to allow the adjustment slider 27 to slide in the adjustment groove 25 on the support plate 19. The adjustment groove 25 ensures stability during the adjustment process and prevents displacement caused by vibration or external force.

[0048] Reference Figure 3-Figure 4 In some specific embodiments, a plurality of first adjustment holes 22 are opened on the top of the support plate 19, a second adjustment hole 23 is opened inside the adjustment plate 21, a third fixing bolt 24 is passed through the second adjustment hole 23, and one end of the third fixing bolt 24 is threadedly engaged with any of the first adjustment holes 22.

[0049] Through the above technical solution, when the position of the adjustment plate 21 needs to be fixed, the operator will pass the third fixing bolt 24 through the second adjustment hole 23 of the adjustment plate 21, and match the third fixing bolt 24 with the first adjustment hole 22 on the support plate 19, thereby fixing the position of the adjustment plate 21.

[0050] Reference Figure 1-Figure 4 In some specific implementations, a movable handle 26 is provided on one side of the support plate 19, and the shape of the movable handle 26 is N-shaped.

[0051] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

Claims

1. An adjustable guiding device for glass liquid, comprising a supporting frame and a glass liquid guiding cylinder, wherein the supporting frame is installed in a row machine, characterized in that: One end of the support frame is slidably connected to an adjustment seat, one side of the adjustment seat is provided with a connecting plate, the glass liquid guide cylinder is installed on one side of the connecting plate, the top of the glass liquid guide cylinder is provided with a feeding end, the feeding end faces the shearing device, the bottom of the glass liquid guide cylinder is provided with a discharging end, the discharging end faces the receiving device, one side of the support frame is provided with a plurality of first fixing holes, the plurality of first fixing holes are vertically arranged at equal intervals, a second fixing hole is provided inside the adjustment seat, the second fixing hole passes through both sides of the adjustment seat, a first fixing bolt is passed through the second fixing hole, one end of the first fixing bolt is threadedly matched with any one of the first fixing holes.

2. The adjustable guiding device for molten glass according to claim 1, characterized in that: Two extension blocks are provided on the other side of the adjustment seat, and a height guide slider is provided on one side of the two extension blocks. Height guide slots are provided on both sides of the support frame, and the height guide sliders of the two extension blocks are slidably matched with the two height guide slots respectively.

3. The adjustable guiding device for glass liquid according to claim 1, characterized in that: Two first protection plates are provided at the bottom of the connecting plate, the two first protection plates are spaced apart to form a first protection interval, and the other end of the first fixing bolt is located in the first protection interval.

4. The adjustable guiding device for molten glass according to claim 1, characterized in that: One side of the connecting plate is rotatably connected with an adjusting shaft, one end of the adjusting shaft is provided with a rotating plate, and the glass liquid guide cylinder is installed on one side of the rotating plate.

5. The adjustable guiding device for molten glass according to claim 4, characterized in that: A plurality of third fixing holes are provided on one side of the connecting plate, and the plurality of third fixing holes are distributed in a ring around the adjusting shaft. A fourth fixing hole is opened inside the rotating plate, and a second fixing bolt is passed through the fourth fixing hole, and the second fixing bolt is threadedly matched with any of the third fixing holes.

6. The adjustable guiding device for molten glass according to claim 4, characterized in that: Two second protection plates are arranged at the bottom of the rotating plate, the two second protection plates are spaced apart to form a second protection interval, and the adjusting shaft is located in the second protection interval.

7. The adjustable guiding device for molten glass according to claim 4, characterized in that: A support plate is provided on one side of the rotating plate, a guide movable groove is provided in the support plate, the glass liquid guide cylinder is slidably matched with the guide movable groove, an adjustment plate is provided on the outer edge of the glass liquid guide cylinder, and the bottom of the adjustment plate is slidably matched with the support plate.

8. The adjustable guiding device for molten glass according to claim 7, characterized in that: An adjusting slide groove is arranged on the top of the support plate, and the adjusting slide groove is close to the guide movable groove. An adjusting slider is arranged on the bottom of the adjusting plate, and the adjusting slider is slidably matched with the adjusting slide groove.

9. The adjustable guiding device for molten glass according to claim 7, characterized in that: A plurality of first adjustment holes are provided on the top of the support plate, a second adjustment hole is provided inside the adjustment plate, a third fixing bolt is passed through the second adjustment hole, and one end of the third fixing bolt is threadedly engaged with any one of the first adjustment holes.

10. The adjustable guiding device for molten glass according to claim 7, characterized in that: A movable handle is provided on one side of the support plate, and the movable handle is in an N-shape.

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