Dual channel count review device

Abstract

The application relates to the technical field of household hardware packaging mechanical equipment, and discloses a double-channel counting reinspection device, which comprises a supporting frame, a supporting plate is fixedly connected to the outside of the supporting frame, antiskid legs are fixedly connected to the bottom corners of the supporting plate, a supporting shell is fixedly connected to the inside of the supporting frame, a conveying pipe is fixedly connected to the top end of the supporting shell, a gas cylinder is fixedly connected to the top end of the supporting frame, a gas conveying pipe is fixedly connected to the output end of the gas cylinder, the gas conveying pipe is fixedly connected to the inside of the conveying pipe, a first blanking plate is fixedly connected to the inside of the supporting frame, and a second blanking plate is fixedly connected to the inside of the first blanking plate. The impurity collecting mechanism is arranged, impurities are blown into the fixed shell through the impurity feeding port by airflow, the gas is discharged from the air outlet and drives the knocking ball to knock the shell, so that the effects of efficient impurity removal and self-cleaning are achieved, and the purity of material conveying and the reliability of equipment operation are effectively improved.

Description

Technical Field

[0001] This invention relates to the field of household hardware packaging machinery and equipment technology, specifically a dual-channel counting and re-inspection device. Background Technology

[0002] In the field of home hardware packaging machinery and equipment technology, the automatic conveying, counting and diversion of small-sized materials such as screws and nuts are key links in the packaging production line.

[0003] Existing dual-channel counting and re-inspection devices are prone to having light impurities such as metal shavings, dust, or fibers mixed in during material processing and transportation. Over time, these impurities not only interfere with the normal flow trajectory of the material, but also cause distortion of the counting signal and a decrease in detection sensitivity.

[0004] The inventors of this application discovered in their research that the core defect of the aforementioned prior art lies in the lack of an active separation and collection function for impurities in the conveyed materials, which leads to impurities affecting the stability of the count over a long period of time. Summary of the Invention

[0005] This invention provides a dual-channel counting and re-inspection device, which solves the problem that existing dual-channel counting and re-inspection devices suffer from distortion of counting signals and decreased detection sensitivity due to the easy inclusion of light impurities such as metal shavings, dust, or fibers in materials during processing and transportation.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a dual-channel counting and re-inspection device, comprising a support frame, a support plate fixedly connected to the outside of the support frame, anti-slip legs fixedly connected to the four corners of the bottom end of the support plate, a support shell fixedly connected to the inside of the support frame, a conveying pipe fixedly connected to the top end of the support shell, a cylinder fixedly connected to the top end of the support frame, an air supply pipe fixedly connected to the output end of the cylinder, the outside of the air supply pipe fixedly connected to the inside of the conveying pipe, a first feeding plate fixedly connected to the inside of the support frame, a second feeding plate fixedly connected to the inside of the first feeding plate, and an impurity collection mechanism provided inside the conveying pipe, the impurity collection mechanism comprising a collection component and a striking component, the outside of the collection component being disposed inside the conveying pipe, and the outside of the striking component being disposed outside the collection component.

[0007] By adopting the above technical solution, the support frame, as the main support frame of the entire material conveying and unloading equipment, together with the externally fixed support plate, forms a rigid load-bearing base, ensuring the installation and alignment accuracy of each functional component. The anti-slip legs set at the four corners of the bottom of the support plate can fit tightly with the equipment placement surface, increasing the friction of the contact surface, effectively suppressing the vibration and slippage caused by pneumatic action during equipment operation, while buffering ground shock and maintaining the stability of conveying and unloading actions.

[0008] Preferably, the collecting component includes a fixed shell, the outside of which is fixedly connected to the inside of the conveying pipe, the inside of which is provided with an impurity inlet and an air outlet.

[0009] Preferably, the striking component includes a flexible rope, one end of which is fixedly connected to one end of the fixed shell, and a striking ball is fixedly connected to the bottom end of the flexible rope. The striking ball is disposed outside the fixed shell.

[0010] Preferably, a hinge is fixedly connected to the top of the fixed shell, and an opening and closing plate is fixedly connected to one end of the hinge, with the outside of the opening and closing plate disposed inside the fixed shell.

[0011] Preferably, a screening component is provided inside the support housing, and the screening component is located outside the support frame.

[0012] Preferably, the screening component includes a first swing component, a second swing component, and a third swing component. The first swing component is disposed on the outside of one side of the supporting housing, and the second and third swing components are disposed on the outside of the other side of the supporting housing. The first swing component includes a first electric push rod. One end of the first electric push rod is rotatably connected to the outside of one side of the supporting housing. The output end of the first electric push rod is fixedly connected to a first rotating rod. One end of the first rotating rod is fixedly connected to a first swing plate. The outside of the first rotating rod is rotatably connected to the outside of one side of the supporting housing, and both ends of the first swing plate are rotatably connected to the inside of the supporting housing.

[0013] Preferably, the second swing assembly includes a second electric push rod, one end of which is rotatably connected to the outside of the other side of the support housing, the output end of which is fixedly connected to a second rotating rod, one end of which is fixedly connected to a second swing plate, the outside of which is rotatably connected to the outside of the other side of the support housing, and both ends of which are rotatably connected to the inside of the support housing.

[0014] Preferably, the third swing assembly includes a third electric push rod, one end of which is rotatably connected to the outside of the other side of the support housing, the output end of which is fixedly connected to a third rotating rod, one end of which is fixedly connected to a third swing plate, the outside of which is rotatably connected to the outside of the other side of the support housing, and both ends of which are rotatably connected to the inside of the support housing.

[0015] Preferably, the support frame is provided with an opening and closing component on its exterior, and the top end of the opening and closing component is located at the bottom end of the support shell.

[0016] Preferably, the opening and closing assembly includes a downward electric push rod, the external part of which is fixedly connected to the inside of the support frame, the output end of which is fixedly connected to an opening and closing frame, the external part of which is rotatably connected to the inside of the support frame, and the top end of which is located at the bottom end of the support housing.

[0017] By adopting the above technical solution, the cylinder sends air into the conveying pipe through the air supply pipe, blowing light impurities in the material into the fixed shell of the impurity collection mechanism. When the airflow is discharged from the air outlet, it drives the striking ball to continuously strike the shell to prevent blockage. The impurities can be cleaned later by the opening and closing plate. The material after impurity removal enters the support shell. The first, second, and third swing components in the screening assembly drive the corresponding swing plates through the first, second, and third electric push rods, respectively, to act in sequence, so that the material is alternately diverted and counted in the left and right storage spaces. The counting optical fibers on both sides are cross-checked. Finally, the downward electric push rod in the opening and closing assembly independently controls the rotation of the opening and closing frame, so that the material on the left and right sides is output along the first and second feeding plates, respectively, which facilitates sampling re-inspection and connection between the front and back processes.

[0018] This invention provides a dual-channel counting and re-inspection device. It has the following beneficial effects: 1. This invention, by setting up an impurity collection mechanism, blows impurities into the fixed shell through the impurity inlet by airflow, and the gas is discharged from the air outlet and drives the striking ball to strike the shell, thereby achieving efficient impurity removal and self-cleaning, effectively improving the purity of material conveying and the reliability of equipment operation.

[0019] 2. This invention, by setting up a screening component, firstly drives the second swing plate to close the left outlet by the second swing component, then drives the first swing plate to reset by the first swing component, so that the material flows back to the left storage space, and finally drives the third swing plate to open the right outlet by the third swing component, so as to release the counted material. This realizes the circulation and orderly release of material in the left and right storage spaces, effectively solving the problem of easy confusion in single-channel counting, and achieving the effect of dual-channel alternating re-inspection and intelligent diversion.

[0020] 3. By setting up an opening and closing component, the left and right channels are controlled by independent downward electric push rods to rotate the opening and closing frame. When the right side needs to release material, the right downward electric push rod pushes the corresponding opening and closing frame to open, and the material is output along the first feeding plate. The same applies to the left side, thereby achieving the effect of independent output and re-inspection and verification of dual channels, effectively improving counting accuracy and production efficiency, and realizing efficient control and quality traceability of material flow. Attached Figure Description

[0021] Figure 1 This is a perspective view of the present invention; Figure 2 This is a schematic diagram of the support frame of the present invention; Figure 3 This is a schematic diagram of the gas pipeline of the present invention; Figure 4 This is a schematic diagram of the opening and closing plate of the present invention; Figure 5 This is a schematic diagram of the first rotating rod of the present invention; Figure 6 This is a schematic diagram of the supporting shell of the present invention; Figure 7 This is a schematic diagram of the delivery pipe of the present invention; Figure 8 This is a schematic diagram of the second feeding plate of the present invention.

[0022] The components include: 1. Support frame; 2. Support plate; 3. Anti-slip leg; 4. Support shell; 5. Conveying pipe; 6. Impurity collection mechanism; 7. Air supply pipe; 8. Cylinder; 9. Hinge; 10. Opening and closing plate; 11. Screening assembly; 12. First feeding plate; 13. Second feeding plate; 14. Opening and closing assembly. 61. Collection component; 611. Fixing shell; 612. Impurity inlet; 613. Air outlet; 62. Striking component; 621. Flexible rope; 622. Striking ball; 111. First swing assembly; 1111. First electric push rod; 1112. First rotating rod; 1113. First swing plate; 112. Second swing assembly; 1121. Second electric push rod; 1122. Second rotating rod; 1123. Second swing plate; 113. Third swing assembly; 1131. Third electric push rod; 1132. Third rotating rod; 1133. Third swing plate; 141. Press down electric push rod; 142. Opening and closing frame. Detailed Implementation

[0023] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] Please see the appendix Figure 1 -Appendix Figure 3This invention provides a dual-channel counting and re-inspection device, including a support frame 1. A support plate 2 is fixedly connected to the outside of the support frame 1. Anti-slip legs 3 are fixedly connected to the four corners of the bottom end of the support plate 2. A support shell 4 is fixedly connected to the inside of the support frame 1. A conveying pipe 5 is fixedly connected to the top of the support shell 4. A cylinder 8 is fixedly connected to the top of the support frame 1. An air supply pipe 7 is fixedly connected to the output end of the cylinder 8. The outside of the air supply pipe 7 is fixedly connected to the inside of the conveying pipe 5. A first feeding plate 12 is fixedly connected to the inside of the support frame 1. A second feeding plate 13 is fixedly connected to the inside of the first feeding plate 12. An impurity collection mechanism 6 is provided inside the conveying pipe 5. The impurity collection mechanism 6 includes a collection component 61 and a striking component 62. The outside of the collection component 61 is located inside the conveying pipe 5, and the outside of the striking component 62 is located outside the collection component 61.

[0025] Specifically, the support frame 1 is fixedly connected to the support plate 2, and the support plate 2 is used to support the anti-slip leg 3 for fixation. At the same time, the collection box and conveyor belt can be placed inside the support plate 2, and the anti-slip leg 3 can prevent the device from shifting during use. Then, the support frame 1 is used to support the support shell 4 for fixation, and the support shell 4 is used to support the conveying pipe 5 for fixation. Then, the conveying pipe 5 is used to convey items such as threads and nuts into the interior of the support shell 4, and the support frame 1 is used to support the cylinder 8 for fixation. However, the output end of the cylinder 8 is fixedly connected to the air supply pipe 7, and the air supply pipe 7 is fixed inside the conveying pipe 5. The cylinder 8 and the air supply pipe 7 can blow away the impurities mixed between the screws and nuts. Then, the support frame 1 is used to support the first feeding plate 12 for fixation, and the first feeding plate 12 is used to support the second feeding plate 13 for fixation. At the same time, the first feeding plate 12 and the second feeding plate 13 can convey the threads and nuts in two directions.

[0026] Please see the appendix Figure 2 -Appendix Figure 4 The collecting component 61 includes a fixed shell 611, which is fixedly connected to the inside of the conveying pipe 5. The fixed shell 611 has an impurity inlet 612 and an air outlet 613. The striking component 62 includes a flexible rope 621, one end of which is fixedly connected to one end of the fixed shell 611. The bottom end of the flexible rope 621 is fixedly connected to a striking ball 622, which is disposed outside the fixed shell 611. The top end of the fixed shell 611 is fixedly connected to a hinge 9, one end of which is fixedly connected to an opening and closing plate 10, which is disposed inside the fixed shell 611.

[0027] Specifically, the conveying pipe 5 is used to support and fix the fixed shell 611, and the fixed shell 611 is used to support and fix the flexible rope 621 to the hinge 9 and the opening and closing plate 10. At the same time, the fixed shell 611 has an impurity inlet 612 and an air outlet 613 inside. When there is upward blowing gas inside the conveying pipe 5, the gas will drive the impurities mixed inside the screw and nut to move upward, and the impurities will enter the interior of the fixed shell 611 through the impurity inlet 612 for storage. Then the gas will be discharged outward through the air outlet 613, and the discharged gas will drive the striking ball 622 to strike. On the fixed shell 611, the flexible rope 621 can limit the amplitude of the blown ball 622, and the vibration generated by the blown ball 622 can vibrate open the screws and nuts with problems of excessive weight accumulation at the impurity inlet 612. When it is necessary to clean the impurities, the opening and closing plate 10 needs to be pulled, and the opening and closing plate 10 is flipped by the hinge 9 to clean the impurities. The vent 613 has a small diameter, so the impurities will not be discharged from the inside of the fixed shell 611 through the vent 613. At the same time, the vibration generated by the blown ball 622 can also prevent the vent 613 from being blocked.

[0028] Please see the appendix Figure 5 -Appendix Figure 7A screening assembly 11 is provided inside the supporting shell 4, and the screening assembly 11 is located outside the supporting frame 1. The screening assembly 11 includes a first swing assembly 111, a second swing assembly 112, and a third swing assembly 113. The first swing assembly 111 is located outside one side of the supporting shell 4, and the second and third swing assemblies 112 and 113 are located outside the other side of the supporting shell 4. The first swing assembly 111 includes a first electric push rod 1111, one end of which is rotatably connected to the outside of one side of the supporting shell 4. The output end of the first electric push rod 1111 is fixedly connected to a first rotating rod 1112. One end of the first rotating rod 1112 is fixedly connected to a first swing plate 1113, the outside of which is rotatably connected to the outside of one side of the supporting shell 4. Both ends of the first swing plate 1113 are rotatably connected inside the supporting shell 4. The second swing assembly 112 includes a first electric push rod 1111, one end of which is rotatably connected to the first swing plate 1113, and the outside of which is rotatably connected to the outside of one side of the supporting shell 4. The second electric push rod 1121 has one end rotatably connected to the outside of the other side of the supporting housing 4, and the output end of the second electric push rod 1121 is fixedly connected to a second rotating rod 1122. One end of the second rotating rod 1122 is fixedly connected to a second swing plate 1123, and the outside of the second rotating rod 1122 is rotatably connected to the outside of the other side of the supporting housing 4. Both ends of the second swing plate 1123 are rotatably connected to the inside of the supporting housing 4. The third swing assembly 113 includes a third electric push rod 1131, one end of the third electric push rod 1131 is rotatably connected to the outside of the other side of the supporting housing 4, and the output end of the third electric push rod 1131 is fixedly connected to a third rotating rod 1132. One end of the third rotating rod 1132 is fixedly connected to a third swing plate 1133, and the outside of the third rotating rod 1132 is rotatably connected to the outside of the other side of the supporting housing 4. Both ends of the third swing plate 1133 are rotatably connected to the inside of the supporting housing 4.

[0029] Specifically, the support housing 4 supports the first electric push rod 1111, the second electric push rod 1121, and the third electric push rod 1131 to swing. The support housing 4 also supports the first rotating rod 1112, the second rotating rod 1122, and the third rotating rod 1132 to rotate. Simultaneously, the support housing 4 supports the first swing plate 1113, the second swing plate 1123, and the third swing plate 1133 to rotate. The first swing plate 1113, the second swing plate 1123, and the third swing plate 1133 can control the direction in which screws and nuts are conveyed. When screws and nuts enter the support housing 4 through the conveying pipe 5, the first electric push rod 1111 drives the first rotating rod 1112 to rotate, and the first rotating rod 1112 drives the first swing plate 1113 to rotate synchronously. The first swing plate 1113 can also control the direction in which items such as screws and nuts are conveyed. The screws and nuts conveyed on the left are now conveyed to the right. The second electric push rod 1121 is driven again to drive the second rotating rod 1122 to rotate. The second rotating rod 1122 will also drive the second swing plate 1123 to rotate, which can close the left storage space inside the support shell 4. The first electric push rod 1111 can be activated again to drive the first rotating rod 1112 and the second swing plate 1123 to rotate synchronously, which can put the screws and nuts back into the left storage space. Then the third electric push rod 1131 is activated to drive the third rotating rod 1132 and the third swing plate 1133 to rotate, which can open the storage space inside the right space, allowing the screws and nuts to be conveyed downward. The left and right spaces inside the support shell 4 are fixedly connected with counting optical fibers, which can transmit the total number of screws and nuts that have entered the left and right storage spaces to the control panel.

[0030] Please see the appendix Figure 6 -Appendix Figure 8 An opening and closing assembly 14 is provided on the outside of the support frame 1, and the top of the opening and closing assembly 14 is located at the bottom of the support housing 4. The opening and closing assembly 14 includes a downward electric push rod 141, the outside of which is fixedly connected to the inside of the support frame 1. An opening and closing frame 142 is fixedly connected to the output end of the downward electric push rod 141. The outside of the opening and closing frame 142 is rotatably connected to the inside of the support frame 1, and the top of the opening and closing frame 142 is located at the bottom of the support housing 4.

[0031] Specifically, the support frame 1 is used to support and fix the downward electric push rod 141, and the support frame 1 is also used to support the opening and closing frame 142 to rotate. At the same time, the downward electric push rod 141 and the opening and closing frame 142 are arranged symmetrically. When the downward electric push rod 141 on the right is activated to drive the opening and closing frame 142 to rotate, the screws and nuts inside the opening and closing frame 142 can enter the next process through the first feeding plate 12. When the downward electric push rod 141 on the left is activated to drive the opening and closing frame 142 to rotate, the screws and nuts inside the opening and closing frame 142 can enter the next process through the second feeding plate 13.

[0032] Work process: First, the material enters through the conveying pipe 5. The cylinder 8 blows air upward through the air supply pipe 7, blowing light impurities into the interior of the fixed shell 611 through the impurity inlet 612, where the impurities are temporarily stored. When the clean airflow escapes from the air outlet 613, it drives the striking ball 622 to continuously strike the outer wall of the fixed shell 611. The resulting vibration can shake off the material stuck in the impurity inlet 612 and disperse the impurities near the air outlet 613. During cleaning, the impurities can be discharged simply by flipping the hinge 9 connected to the opening plate 10. This achieves efficient impurity removal and self-cleaning, effectively improving the purity of material conveying and the reliability of equipment operation.

[0033] After impurity removal, the material falls into the support shell 4. Then, the second electric push rod 1121 drives the second rotating rod 1122 to rotate the second swing plate 1123, closing the left storage space inside the support shell 4. At this time, the first electric push rod 1111 is activated again to drive the first rotating rod 1112 and the first swing plate 1113 to reset, allowing the material to re-enter the left storage space. Next, the third electric push rod 1131 drives the third rotating rod 1132 to rotate the third swing plate 1133, opening the right storage space and allowing the counted material to be conveyed downwards to the next process. This enables the material to circulate and be released in an orderly manner within the left and right storage spaces, effectively solving the problem of confusion caused by single-channel counting and achieving the effects of dual-channel alternating re-inspection and intelligent diversion.

[0034] When material needs to be discharged from one side, the corresponding side's downward electric push rod 141 pushes the opening and closing frame 142 to rotate and open, so that the material on the right side flows out along the first discharge plate 12 and the material on the left side flows out along the second discharge plate 13. This can achieve the effect of independent output and re-inspection and verification of dual channels, effectively improve counting accuracy and production efficiency, and realize efficient control and quality traceability of material flow.

[0035] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A dual-channel counting and re-inspection device, comprising a support frame (1), characterized in that, The support frame (1) is fixedly connected to the outside of a support plate (2). Anti-slip legs (3) are fixedly connected to the four corners of the bottom of the support plate (2). The support frame (1) is fixedly connected to the inside of a support shell (4). The top of the support shell (4) is fixedly connected to a conveying pipe (5). The top of the support frame (1) is fixedly connected to a cylinder (8). The output end of the cylinder (8) is fixedly connected to an air supply pipe (7). The outside of the air supply pipe (7) is fixedly connected to the inside of the conveying pipe (5). The inside of the support frame (1) is fixedly connected to a first feeding plate (12). The inside of the first feeding plate (12) is fixedly connected to a second feeding plate (13). The inside of the conveying pipe (5) is provided with an impurity collection mechanism (6). The impurity collection mechanism (6) includes a collection component (61) and a striking component (62). The outside of the collection component (61) is provided inside the conveying pipe (5). The outside of the striking component (62) is provided outside the collection component (61).

2. The dual-channel counting and re-inspection device according to claim 1, characterized in that, The collecting component (61) includes a fixed shell (611), the outside of which is fixedly connected to the inside of the conveying pipe (5). An impurity inlet (612) is provided inside the fixed shell (611), and an air outlet (613) is provided inside the fixed shell (611).

3. The dual-channel counting and re-inspection device according to claim 1, characterized in that, The striking component (62) includes a flexible rope (621), one end of which is fixedly connected to one end of a fixed shell (611), and a striking ball (622) is fixedly connected to the bottom end of the flexible rope (621). The striking ball (622) is disposed on the outside of the fixed shell (611).

4. The dual-channel counting and re-inspection device according to claim 2, characterized in that, A hinge (9) is fixedly connected to the top of the fixed shell (611), and a hinge plate (10) is fixedly connected to one end of the hinge (9). The exterior of the hinge plate (10) is disposed inside the fixed shell (611).

5. The dual-channel counting and re-inspection device according to claim 1, characterized in that, The interior of the support shell (4) is provided with a screening component (11), and the exterior of the screening component (11) is provided inside the support frame (1).

6. The dual-channel counting and re-inspection device according to claim 5, characterized in that, The screening component (11) includes a first swing component (111), a second swing component (112), and a third swing component (113). The exterior of the first swing component (111) is disposed on one side of the support housing (4), and the exteriors of the second swing component (112) and the third swing component (113) are disposed on the other side of the support housing (4). The first swing component (111) includes a first electric push rod (1111). One end of the first electric push rod (1111) is rotatably connected to one side of the support housing (4). The output end of the first electric push rod (1111) is fixedly connected to a first rotating rod (1112). One end of the first rotating rod (1112) is fixedly connected to a first swing plate (1113). The exterior of the first rotating rod (1112) is rotatably connected to one side of the support housing (4), and both ends of the first swing plate (1113) are rotatably connected to the interior of the support housing (4).

7. The dual-channel counting and re-inspection device according to claim 6, characterized in that, The second swing assembly (112) includes a second electric push rod (1121), one end of which is rotatably connected to the outside of the other side of the support housing (4). The output end of the second electric push rod (1121) is fixedly connected to a second rotating rod (1122). One end of the second rotating rod (1122) is fixedly connected to a second swing plate (1123). The outside of the second rotating rod (1122) is rotatably connected to the outside of the other side of the support housing (4). The two ends of the second swing plate (1123) are rotatably connected to the inside of the support housing (4).

8. The dual-channel counting and re-inspection device according to claim 6, characterized in that, The third swing assembly (113) includes a third electric push rod (1131), one end of which is rotatably connected to the outside of the other side of the support housing (4). The output end of the third electric push rod (1131) is fixedly connected to a third rotating rod (1132). One end of the third rotating rod (1132) is fixedly connected to a third swing plate (1133). The outside of the third rotating rod (1132) is rotatably connected to the outside of the other side of the support housing (4). The two ends of the third swing plate (1133) are rotatably connected to the inside of the support housing (4).

9. The dual-channel counting and re-inspection device according to claim 1, characterized in that, The support frame (1) is provided with an opening and closing component (14) on its exterior, and the top of the opening and closing component (14) is located at the bottom of the support shell (4).

10. The dual-channel counting and re-inspection device according to claim 9, characterized in that, The opening and closing assembly (14) includes a downward electric push rod (141), the external of which is fixedly connected to the inside of the support frame (1), the output end of which is fixedly connected to an opening and closing frame (142), the external of which is rotatably connected to the inside of the support frame (1), and the top of which is located at the bottom of the support shell (4).

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