Medicine solid granule packaging machine

Abstract

The utility model belongs to the technical field of medicine solid granule packaging, and particularly relates to a medicine solid granule packaging machine which comprises a packaging machine body and further comprises a fixing shell, the fixing shell is fixedly installed on the top of the packaging machine body, a sliding plate is installed in the fixing shell in a sliding mode, and a material storage groove is formed in the sliding plate. A rotating plate is rotatably mounted at a discharge port of the sliding plate, an L-shaped plate is fixedly mounted in the fixed shell and located at the bottom of the rotating plate, a protective shell is fixedly mounted on the sliding plate, a sliding rod is slidably mounted in the protective shell, and one end of the sliding rod penetrates through one side of the inner wall of the protective shell and is in contact with the sliding plate; when the whole device is used, it is ensured that the gram weight of solid granules in each bag is more uniform during packaging, it is ensured that the feeding hopper can be sealed, external impurities, dust and sundries are prevented from entering the feeding hopper, and the subsequent production process or the product quality is prevented from being affected.

Description

Technical Field

[0001] The utility model belongs to the technical field of pharmaceutical solid granule packaging, in particular to a pharmaceutical solid granule packaging machine. Background Art

[0002] Granules are a commonly used oral solid dosage form for drugs, especially traditional Chinese medicine. Some antibiotics are unstable when in contact with water and can be made into granules, which are dissolved or suspended in water before use, such as amoxicillin granules and cephalexin granules.

[0003] For example, the Chinese patent with the publication number CN215043842U discloses a medicinal granule packaging machine, including a discharging mechanism and a packaging mechanism, wherein: the discharging mechanism includes a box, a hopper and a baffle plate, the box is installed on the packaging mechanism, the hopper has a discharging port, the hopper is installed on the box, and the discharging port of the hopper is located in the box, a partition covering the discharging port of the hopper is installed on the hopper, and a through hole is opened on the partition. The utility model is novel in design and simple in operation. The driving member can drive the baffle plate to slide on the baffle plate, and then the baffle plate can open or cover the through hole, so that the particles in the hopper can be discharged evenly and transported via the driving member; at the same time, the guide plate can evenly spread the particles on the driving member, so that it can be dropped more evenly, and then the particles fall into the packaging mechanism for packaging processing, which improves the packaging effect and efficiency.

[0004] The above patent has the following problems:

[0005] This patent has some disadvantages when in use, such as: when the device is in use, when there are more solid granules in the hopper, the material discharge speed will slow down due to the high density between the solid granules, and when the solid granules in the hopper gradually decrease, the material discharge speed will increase, which will lead to uneven material discharge, and then lead to uneven drug quantity in each package of medicine after packaging. In addition, the hopper of the device is always in an open state, and external impurities, dust, sundries, etc. may more easily enter the hopper, affecting the subsequent production process or product quality. In view of this, we propose a pharmaceutical solid granule packaging machine. Utility Model Content

[0006] The purpose of the utility model is to provide a pharmaceutical solid granule packaging machine to solve the problems raised in the above background technology.

[0007] In view of this, the utility model provides a pharmaceutical solid granule packaging machine, including a packaging machine body, and also includes:

[0008] A fixed shell, wherein the fixed shell is fixedly mounted on the top of the packaging machine body, a sliding plate is slidably mounted in the fixed shell, a material storage trough is provided in the sliding plate, a rotating plate is rotatably mounted at the material outlet of the sliding plate, an L-shaped plate is fixedly mounted in the fixed shell and at the bottom of the rotating plate, a protective shell is fixedly mounted on the sliding plate, a sliding rod is slidably mounted in the protective shell, one end of the sliding rod passes through one side of the inner wall of the protective shell and contacts the sliding plate;

[0009] A driving assembly, which is located in the protective shell and is used to drive the sliding rod to move back and forth;

[0010] The cylinder is fixedly mounted on the inner wall of the fixed shell and is located below the protective shell. The output end of the cylinder is fixed to one side of the sliding plate. A feed hopper is fixedly mounted on the top of the fixed shell. A sealing cover is rotatably mounted on the top of the feed hopper.

[0011] In the technical solution, when in use, the staff first puts the solid granules into the feed hopper, and then rotates and closes the sealing cover by hand. At this time, the magnet 2 at the bottom of the sealing cover will be magnetically connected with the magnet 1 to ensure that the sealing cover will not be opened without the action of external force. Then, under the action of gravity, the solid granules in the feed hopper will fall into the storage tank through the through hole on the fixed shell. At the same time, through the provided driving assembly, the driving assembly drives the sliding rod to reciprocate and continuously hit the sliding plate. At this time, the vibration generated by the impact on the solid granules in the storage tank will be compacted, so that the density of the solid granules in the storage tank is increased, ensuring that the solid granules filled in the storage tank can just fill a pack of medicine. This process lasts for 10 seconds to ensure that the storage tank can be filled with solid granules.

[0012] Then, the staff starts the cylinder again, extending the output shaft of the cylinder and driving the sliding plate to slide in the fixed shell until the rotating plate at the bottom of the sliding plate no longer contacts the L-shaped plate. At this time, the through hole on the fixed shell will be sealed by the top of the sliding plate. Under the action of gravity, the rotating plate will rotate and open, and the solid granules in the storage trough will fall into the packaging machine body for packaging. Then, the output shaft of the cylinder contracts and drives the sliding plate to slide in the fixed shell. When the rotating plate contacts the L-shaped plate, it will be squeezed and will slowly rotate and close until the storage trough is aligned with the through hole on the fixed shell. At this time, the storage trough is connected to the through hole on the fixed shell and the feed hopper, so that repeated operation can be performed.

[0013] In the above technical solution, further, the driving component includes:

[0014] A rack, the rack is fixedly installed at the bottom of the sliding rod and is located in the protective shell, a half gear is rotatably installed in the protective shell and at the bottom of the rack, a motor is fixedly installed on one side of the protective shell, the output shaft of the motor passes through one side of the protective shell and is coaxially connected with the half gear, rectangular plates are fixedly installed on both sides of the sliding rod and located in the protective shell, and a tension spring fixed to the inner wall of the protective shell is fixedly installed on one side of the rectangular plate.

[0015] In the present technical solution, the motor is started so that the output shaft of the motor drives the half gear to rotate. Under the action of meshing, the half gear will first drive the rack to move in the direction away from the material storage trough, and then the rack will drive the sliding rod and the two rectangular plates to move in the direction away from the material storage trough. At this time, the two tension springs will be stretched by the tension. When the half gear rotates and no longer meshes with the rack, under the action of the tension of the two tension springs, the two tension springs will pull the two rectangular plates and the sliding rod to move in the direction close to the material storage trough, so that one end of the sliding rod hits the sliding plate. Under the continuous rotation of the half gear, the sliding rod will reciprocate and continuously hit the sliding plate.

[0016] In the above technical solution, further, the rack is meshed with the half gear, and the output shaft of the motor is rotationally connected to one side of the protective shell.

[0017] In this technical solution, it is ensured that when the half gear rotates, under the action of meshing, the half gear can drive the rack to move; thus ensuring that the motor can operate normally.

[0018] In the above technical solution, further, the feed hopper is connected to the through hole on the fixed shell and the material storage trough.

[0019] In this technical solution, it is ensured that the solid particles in the feed hopper can fall into the storage tank through the through holes on the fixed shell.

[0020] In the above technical solution, further, a magnet one is fixedly installed on the top of the feed hopper, and a magnet two is fixedly installed on the bottom of the sealing cover, and the magnet one is magnetically connected to the magnet two.

[0021] In the technical solution, when the sealing cover is closed, the second magnet at the bottom of the sealing cover will be magnetically connected with the first magnet to ensure that the sealing cover will not be opened without the action of external force.

[0022] In the above technical solution, further, the sliding plate is in an L-shaped structure, and the sliding rod is slidably connected to the sliding plate.

[0023] In this technical solution, it is ensured that the sliding rod can slide on the sliding plate, and the sliding rod can hit the sliding plate.

[0024] The beneficial effects of the utility model are:

[0025] 1. The pharmaceutical solid granule packaging machine ensures that the sliding rod can repeatedly hit the sliding plate through the cooperation between the sliding plate, sliding rod, material storage trough, L-shaped plate, cylinder, rotating plate and driving assembly, so that the solid granules in the material storage trough can be vibrated and compacted, thereby ensuring that the gram weight of each package is more uniform during packaging.

[0026] 2. The pharmaceutical solid granule packaging machine ensures that the feed hopper can be sealed through the cooperation between the sealing cover, the first magnet and the second magnet, so as to prevent foreign impurities, dust and sundries from entering the feed hopper and avoid affecting the subsequent production process or product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0028] Figure 2 This is a schematic diagram of the internal structure of the fixed shell in the utility model;

[0029] Figure 3 It is a schematic diagram of the internal structure of the sliding plate in the utility model;

[0030] Figure 4 This is a schematic diagram of the internal structure of the protective shell in the utility model;

[0031] Figure 5 It is a structural schematic diagram of the sliding plate and the rotating plate in the utility model;

[0032] Figure 6 It is a structural schematic diagram of the feed hopper in the utility model;

[0033] Figure 7 It is a structural schematic diagram of the sealing cover in the utility model.

[0034] The symbols in the figure are:

[0035] 1. Packaging machine body; 2. Fixed shell; 3. Feed hopper; 4. Sealing cover; 5. Sliding plate; 6. L-shaped plate; 7. Protective shell; 8. Cylinder; 9. Storage trough; 10. Sliding rod; 11. Rectangular plate; 12. Tension spring; 13. Rack; 14. Half gear; 15. Motor; 16. Rotating plate; 17. Magnet 1; 18. Magnet 2. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0037] In the description of the present application, it should be noted that the terms used herein are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. For ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0038] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0039] It should be noted that, in the description of the present application, the orientation or positional relationship indicated by terms such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise stated, these orientation words 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, and therefore cannot be understood as limiting the scope of protection of the present application; the orientation words "inside and outside" refer to the inside and outside relative to the contour of each component itself.

[0040] It should be noted that, in the present application, the terms "comprise", "include" or any other variant 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. In the absence of further restrictions, an element defined by the sentence "comprises one..." does not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be noted that the scope of the method and device in the embodiment of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0041] Embodiment 1:

[0042] See also Figure 1 - Figure 7 As shown, this embodiment provides a pharmaceutical solid granule packaging machine, including a packaging machine body 1, and also includes:

[0043] A fixed shell 2 is fixedly mounted on the top of the packaging machine body 1, a sliding plate 5 is slidably mounted in the fixed shell 2, a material storage trough 9 is provided in the sliding plate 5, a rotating plate 16 is rotatably mounted at the material outlet of the sliding plate 5, an L-shaped plate 6 is fixedly mounted in the fixed shell 2 and at the bottom of the rotating plate 16, a protective shell 7 is fixedly mounted on the sliding plate 5, a sliding rod 10 is slidably mounted in the protective shell 7, one end of the sliding rod 10 passes through one side of the inner wall of the protective shell 7 and contacts the sliding plate 5;

[0044] A driving assembly, which is located in the protective shell 7 and is used to drive the sliding rod 10 to move back and forth;

[0045] Cylinder 8 is fixedly mounted on the inner wall of the fixed shell 2 and is located below the protective shell 7. The output end of the cylinder 8 is fixed to one side of the sliding plate 5. The feed hopper 3 is fixedly mounted on the top of the fixed shell 2. The sealing cover 4 is rotatably mounted on the top of the feed hopper 3.

[0046] Among them, when in use, the staff first puts the solid granules into the feed hopper 3, and then rotates and closes the sealing cover 4 by hand. At this time, the magnet 2 18 at the bottom of the sealing cover 4 will be magnetically connected with the magnet 1 17 to ensure that the sealing cover 4 will not be opened without the action of external force. Subsequently, under the action of gravity, the solid granules in the feed hopper 3 will fall into the storage tank 9 through the through hole on the fixed shell 2. At the same time, through the provided driving component, the driving component drives the sliding rod 10 to reciprocate and continuously hit the sliding plate 5. At this time, the vibration generated by the impact on the solid granules in the storage tank 9 will be compacted, so that the density of the solid granules in the storage tank 9 is increased, ensuring that the solid granules filled in the storage tank 9 can just fill a pack of medicine. This process lasts for 10 seconds to ensure that the storage tank 9 can be filled with solid granules;

[0047] Subsequently, the staff starts the cylinder 8 again, so that the output shaft of the cylinder 8 extends and drives the sliding plate 5 to slide in the fixed shell 2 until the rotating plate 16 at the bottom of the sliding plate 5 is no longer in contact with the L-shaped plate 6. At this time, the through hole on the fixed shell 2 will be sealed by the top of the sliding plate 5. Under the action of gravity, the rotating plate 16 will rotate and open, and the solid granules in the storage trough 9 will fall into the packaging machine body 1 for packaging. Subsequently, the output shaft of the cylinder 8 contracts and drives the sliding plate 5 to slide in the fixed shell 2. When the rotating plate 16 contacts the L-shaped plate 6, it will be squeezed and will slowly rotate and close until the storage trough 9 is aligned with the through hole on the fixed shell 2. At this time, the storage trough 9 is connected to the through hole on the fixed shell 2 and the feed hopper 3, thereby performing repeated operations.

[0048] Embodiment 2:

[0049] This embodiment provides a pharmaceutical solid granule packaging machine, which, in addition to the technical solutions of the above embodiments, also has the following technical features, and the driving component includes:

[0050] The rack 13 is fixedly mounted at the bottom of the sliding rod 10 and is located in the protective shell 7. A half gear 14 is rotatably mounted in the protective shell 7 and located at the bottom of the rack 13. A motor 15 is fixedly mounted on one side of the protective shell 7. The output shaft of the motor 15 passes through one side of the protective shell 7 and is coaxially connected to the half gear 14. Rectangular plates 11 are fixedly mounted on both sides of the sliding rod 10 and are located in the protective shell 7. A tension spring 12 fixed to the inner wall of the protective shell 7 is fixedly mounted on one side of the rectangular plate 11.

[0051] Among them, the motor 15 is started, so that the output shaft of the motor 15 drives the half gear 14 to rotate. Under the action of meshing, the half gear 14 will first drive the rack 13 to move in the direction away from the storage tank 9, and then the rack 13 will drive the sliding rod 10 and the two rectangular plates 11 to move in the direction away from the storage tank 9. At this time, the two tension springs 12 will be stretched by the tension. When the half gear 14 rotates and no longer meshes with the rack 13, under the action of the tension of the two tension springs 12, the two tension springs 12 will pull the two rectangular plates 11 and the sliding rod 10 to move in the direction close to the storage tank 9, so that one end of the sliding rod 10 hits the sliding plate 5. Under the continuous rotation of the half gear 14, the sliding rod 10 will reciprocate and continuously hit the sliding plate 5.

[0052] Embodiment 3:

[0053] This embodiment provides a pharmaceutical solid granule packaging machine, which, in addition to the technical solutions of the above embodiments, also has the following technical features: the rack 13 is meshed with the half gear 14, and the output shaft of the motor 15 is rotationally connected to one side of the protective shell 7.

[0054] Among them, it is ensured that when the half gear 14 rotates, under the action of meshing, the half gear 14 can drive the rack 13 to move; and it is ensured that the motor 15 can operate normally.

[0055] Embodiment 4:

[0056] This embodiment provides a pharmaceutical solid granule packaging machine, which, in addition to the technical solutions of the above embodiments, also has the following technical features: the feed hopper 3 is connected to the through hole on the fixed shell 2 and the storage tank 9.

[0057] Here, it is ensured that the solid particles in the feed hopper 3 can fall into the storage tank 9 through the through holes on the fixed shell 2 .

[0058] Embodiment 5:

[0059] The present embodiment provides a pharmaceutical solid granule packaging machine, which, in addition to the technical solutions of the above-mentioned embodiments, also has the following technical features: a magnet 17 is fixedly installed on the top of the feed hopper 3, a magnet 2 18 is fixedly installed on the bottom of the sealing cover 4, and the magnet 17 and the magnet 2 18 are magnetically connected.

[0060] When the sealing cover 4 is closed, the second magnet 18 at the bottom of the sealing cover 4 will be magnetically connected with the first magnet 17 to ensure that the sealing cover 4 will not be opened without the action of external force.

[0061] Embodiment 6:

[0062] This embodiment provides a pharmaceutical solid granule packaging machine, which, in addition to the technical solutions of the above embodiments, also has the following technical features: the sliding plate 5 is in an L-shaped structure, and the sliding rod 10 is slidably connected to the sliding plate 5.

[0063] Here, it is ensured that the sliding rod 10 can slide on the sliding plate 5 and the sliding rod 10 can hit the sliding plate 5 .

[0064] It is worth noting that the structure and principle of the packaging machine body 1 of this embodiment are all existing technologies. For details, please refer to the comparative document (publication number CN215043842U, patent name is a medicinal granule packaging machine), which will not be repeated here.

[0065] Working principle: When in use, the staff first puts the solid granules into the feed hopper 3, and then rotates and closes the sealing cover 4 by hand. At this time, the magnet 2 18 at the bottom of the sealing cover 4 will be magnetically connected with the magnet 1 17 to ensure that the sealing cover 4 will not be opened without the action of external force. Then, under the action of gravity, the solid granules in the feed hopper 3 will fall into the storage tank 9 through the through hole on the fixed shell 2. At the same time, the staff starts the motor 15 so that the output shaft of the motor 15 drives the half gear 14 to rotate. Under the action of meshing, the half gear 14 will first drive the rack 13 to move in the direction away from the storage tank 9, and then the rack 13 will drive the sliding rod 10 and the two rectangular plates 11 to move in the direction away from the storage tank 9. At this time, the two tension springs 12 will be stretched by the tension. When the half gear 14 rotates and no longer meshes with the rack 13, under the action of the tension of the two tension springs 12, the two tension springs 12 will pull the two rectangular plates 11 and the sliding rod 10 to move in the direction close to the storage tank 9, so that one end of the sliding rod 10 hits the sliding plate 5. Under the continuous rotation of the half gear 14, the sliding rod 10 will reciprocate and continuously hit the sliding plate 5. At this time, the solid granules in the storage tank 9 will be compacted by the vibration generated by the impact, so that the density of the solid granules in the storage tank 9 is increased, ensuring that the solid granules filled in the storage tank 9 can just fill a pack of medicine. This process lasts for 10 seconds to ensure that the storage tank 9 can be filled with solid granules.

[0066] Subsequently, the staff starts the cylinder 8 again, so that the output shaft of the cylinder 8 extends and drives the sliding plate 5 to slide in the fixed shell 2 until the rotating plate 16 at the bottom of the sliding plate 5 is no longer in contact with the L-shaped plate 6. At this time, the through hole on the fixed shell 2 will be sealed by the top of the sliding plate 5. Under the action of gravity, the rotating plate 16 will rotate and open, and the solid granules in the storage trough 9 will fall into the packaging machine body 1 for packaging. Subsequently, the output shaft of the cylinder 8 contracts and drives the sliding plate 5 to slide in the fixed shell 2. When the rotating plate 16 contacts the L-shaped plate 6, it will be squeezed and will slowly rotate and close until the storage trough 9 is aligned with the through hole on the fixed shell 2. At this time, the storage trough 9 is connected to the through hole on the fixed shell 2 and the feed hopper 3, thereby performing repeated operations.

[0067] The embodiments of the present application are described above in conjunction with the accompanying drawings. In the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A pharmaceutical solid granule packaging machine, comprising a packaging machine body (1), characterized in that: Also includes: A fixed shell (2), wherein the fixed shell (2) is fixedly mounted on the top of the packaging machine body (1), a sliding plate (5) is slidably mounted in the fixed shell (2), a material storage trough (9) is provided in the sliding plate (5), a rotating plate (16) is rotatably mounted at the material outlet of the sliding plate (5), an L-shaped plate (6) is fixedly mounted in the fixed shell (2) and located at the bottom of the rotating plate (16), a protective shell (7) is fixedly mounted on the sliding plate (5), a sliding rod (10) is slidably mounted in the protective shell (7), one end of the sliding rod (10) passes through one side of the inner wall of the protective shell (7) and contacts the sliding plate (5); A driving assembly, the driving assembly is located in the protective shell (7) and is used to drive the sliding rod (10) to move back and forth; A cylinder (8), wherein the cylinder (8) is fixedly mounted on the inner wall of the fixed shell (2) and is located below the protective shell (7), the output end of the cylinder (8) is fixed to one side of the sliding plate (5), a feed hopper (3) is fixedly mounted on the top of the fixed shell (2), and a sealing cover (4) is rotatably mounted on the top of the feed hopper (3).

2. A pharmaceutical solid granule packaging machine according to claim 1, characterized in that: The drive assembly comprises: A rack (13) is fixedly mounted at the bottom of the sliding rod (10) and is located in the protective shell (7); a half gear (14) is rotatably mounted in the protective shell (7) and located at the bottom of the rack (13); a motor (15) is fixedly mounted on one side of the protective shell (7); an output shaft of the motor (15) passes through one side of the protective shell (7) and is coaxially connected to the half gear (14); rectangular plates (11) are fixedly mounted on both sides of the sliding rod (10) and are located in the protective shell (7); a tension spring (12) fixed to the inner wall of the protective shell (7) is fixedly mounted on one side of the rectangular plate (11).

3. A pharmaceutical solid granule packaging machine according to claim 2, characterized in that: The rack (13) is meshed with the half gear (14), and the output shaft of the motor (15) is rotationally connected to one side of the protective shell (7).

4. The pharmaceutical solid granule packaging machine according to claim 1, characterized in that: The feed hopper (3) is in communication with a through hole on the fixed shell (2) and a material storage tank (9).

5. The pharmaceutical solid granule packaging machine according to claim 1, characterized in that: A magnet one (17) is fixedly mounted on the top of the feed hopper (3), and a magnet two (18) is fixedly mounted on the bottom of the sealing cover (4), and the magnet one (17) is magnetically connected to the magnet two (18).

6. The pharmaceutical solid granule packaging machine according to claim 1, characterized in that: The sliding plate (5) is in an L-shaped structure, and the sliding rod (10) is slidably connected to the sliding plate (5).

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