Smart city traffic guidance equipment

Abstract

The utility model discloses a smart city traffic guiding device which comprises a box body, an installation box is installed on the outer wall of one side of the top of the box body through hinges, an insertion groove is formed in the outer wall of one side of the installation box, the outer wall of one side of the installation box is in threaded connection with a fixing bolt extending into the insertion groove, and an insertion block is welded to the outer wall of one side of the top of the box body. The inserting block is inserted into the inserting groove, and a threaded hole is formed in the outer wall of one side of the inserting block; when the traffic guiding equipment needs to be carried, the photovoltaic panel can be folded in the mounting groove, then the limiting bolt is rotated to be inserted into the mounting hole, so that the photovoltaic panel is folded, and then the fixing bolt is rotated to be separated from the threaded hole, so that the limitation between the mounting box and the inserting block is relieved; according to the guiding device, the installation box can hang down and is folded into the box body, folding of the guiding device is achieved, the size of the guiding device is reduced, and the difficulty of carrying the guiding device is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of smart city traffic guidance, and in particular to a smart city traffic guidance device. Background Art

[0002] In road transportation, in order to ensure the orderly progress of transportation, traffic rules are formulated and smart city traffic guidance equipment is used to direct vehicle driving. Traffic guidance equipment usually refers to a device that guides the driving status of vehicles on the road by changing colors and symbols, and various traffic lights are set on the road, such as red lights, green lights and yellow lights, and mobile guidance equipment is set on some sections of the road to direct vehicle driving.

[0003] For example, a smart city traffic guidance device with application number CN202220375153.4 and authorization announcement date 20221025, the adjustment mechanism includes a first support plate, the bottom of the first support plate is integrally formed with a second support plate, the outer surface of the first support plate is adapted to the interior of the first card slot, the outer surface of the second support plate is adapted to the interior of the second card slot, and a limit assembly is arranged between the second support plate and the second card slot. The utility model relates to the field of intelligent transportation technology. The smart city traffic guidance device, through the coordinated use of the first support plate, the second support plate, the threaded groove, the adjustment screw, the rotating handle, the connecting seat and the limit assembly, can move the guide sign above the road, so that it is in an open environment, avoiding the guide sign being in the green plants, which makes it inconvenient to view, and solves the problem that the functions of the existing traffic guidance equipment are not perfect. Since green plants are generally planted on urban streets, the green plants will block the traffic guidance equipment and affect people's viewing.

[0004] Traditional mobile traffic guidance equipment is large in size and cannot be folded, which makes it difficult for traffic personnel to carry it and affects the layout of the mobile traffic guidance equipment. Therefore, it is urgent to design a smart city traffic guidance equipment to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a smart city traffic guidance device to solve the above-mentioned deficiencies in the prior art.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A smart city traffic guidance device comprises a box body, an installation box is installed on the outer wall of one side of the top of the box body through a hinge, and a plug-in slot is opened on the outer wall of one side of the installation box, a fixing bolt extending to the inside of the plug-in slot is threadedly connected to the outer wall of one side of the installation box, a plug-in block is welded to the outer wall of one side of the top of the box body, and the plug-in block is plugged into the inside of the plug-in slot, a threaded hole is opened on the outer wall of one side of the plug-in block, one end of the fixing bolt is threadedly connected to the inside of the threaded hole, a flash light is provided on the outer wall of one side of the installation box, an installation slot is opened on the outer wall of one side of the installation box, and a photovoltaic panel is installed inside the installation slot through a rotating shaft, a mounting hole is opened on the outer wall of one side of the photovoltaic panel, a limiting bolt is threadedly connected to the outer wall of one side of the installation box, and one end of the limiting bolt is threadedly connected to the inside of the mounting hole.

[0008] Furthermore, a storage area is provided on an outer wall of one side of the box body, and a storage groove is provided on the bottom of the box body.

[0009] Furthermore, a box door is installed on one side of the inner wall of the storage area through a hinge, a shell is installed inside the storage area through bolts, and a plurality of support plates distributed in an upper and lower structure are installed on the outer wall of one side of the shell through bolts.

[0010] Furthermore, a battery is provided on one side of the bottom of the inner wall of the storage area, and an inverter and a control module are installed on one side of the inner wall of the storage area by bolts. The battery is electrically connected to the inverter and the control module through wires, and the inverter is electrically connected to the photovoltaic panel through wires.

[0011] Furthermore, a groove is provided on an outer wall of one side of the box body, a screw rod is installed inside the shell body through a bearing, and a handle is installed on the top end of the screw rod through a flat key, and the handle is located inside the groove.

[0012] Furthermore, a wheel assembly is slidably connected inside the storage groove, and the wheel assembly is also connected inside the shell, and the top end of the wheel assembly is threadedly connected to the screw rod.

[0013] Furthermore, the wheel assembly includes a connecting plate, and two universal wheels are installed on the outer walls on both sides of the bottom of the connecting plate by bolts. A connecting block is welded on the outer wall on one side of the top of the connecting plate, and the connecting block is slidably connected to the inside of the shell, and the connecting block is threadedly connected to the screw rod.

[0014] In the above technical solution, the utility model provides a smart city traffic guidance device, which has the following beneficial effects:

[0015] (1) By providing the installation box, fixing bolts, limiting bolts and installation grooves, when the traffic guidance device needs to be carried, the photovoltaic panel can be folded inside the installation groove, and then the limiting bolts are rotated to insert the limiting bolts into the installation holes, so that the photovoltaic panel is folded up, and then the fixing bolts are rotated again to disengage the fixing bolts from the threaded holes, so that the restriction between the installation box and the plug-in block is released, so that the installation box can hang down, and the installation box can be folded into the box body, thereby realizing the folding of the guidance device, reducing the volume of the guidance device, and helping to reduce the difficulty of carrying the guidance device.

[0016] (2) After the device is moved to a suitable position by means of the provided handle, screw and wheel assembly, the handle can be turned to allow the screw to slide with the connecting block inside the shell, so that the connecting plate rises into the storage slot, the wheel assembly is folded up, and the box body is in direct contact with the ground, thereby improving the stability of the box body on the ground and preventing the box body from being blown down by the wind or moving randomly on the ground.

[0017] (3) The photovoltaic panels can be used together with the inverter inside the box to convert light energy into electrical energy, which is then stored in batteries. The batteries can then be used to power electrical appliances such as flashlights, greatly improving the endurance of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0019] Figure 1 The present invention provides an overall structural diagram of a smart city traffic guidance device embodiment of the present invention.

[0020] Figure 2 A schematic diagram of the overall expanded structure of an embodiment of a smart city traffic guidance device provided by the utility model.

[0021] Figure 3 A schematic diagram of the plane structure of a box provided for an embodiment of a smart city traffic guidance device of the utility model.

[0022] Figure 4 A schematic diagram of the wheel assembly structure provided for an embodiment of a smart city traffic guidance device of the utility model.

[0023] Description of reference numerals:

[0024] 1. Box body; 2. Box door; 3. Wheel assembly; 4. Installation box; 5. Plug-in block; 6. Threaded hole; 7. Plug-in slot; 8. Fixing bolt; 9. Photovoltaic panel; 10. Mounting hole; 11. Limit bolt; 12. Flash light; 13. Storage area; 14. Support plate; 15. Battery; 16. Shell; 17. Screw rod; 18. Handle; 19. Groove; 20. Inverter; 21. Control module; 22. Storage slot; 23. Connecting plate; 24. Connecting block; 25. Universal wheel; 26. Mounting slot. DETAILED DESCRIPTION

[0025] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0026] like Figure 1-4 As shown, a smart city traffic guidance device provided by an embodiment of the utility model includes a box body 1, an installation box 4 is installed on the outer wall of one side of the top of the box body 1 through a hinge, and a plug-in slot 7 is opened on the outer wall of one side of the installation box 4, and a fixing bolt 8 extending to the inside of the plug-in slot 7 is threadedly connected to the outer wall of one side of the installation box 4, a plug-in block 5 is welded to the outer wall of one side of the top of the box body 1, and the plug-in block 5 is plugged into the inside of the plug-in slot 7, a threaded hole 6 is opened on the outer wall of one side of the plug-in block 5, one end of the fixing bolt 8 is threadedly connected to the inside of the threaded hole 6, a flash light 12 is provided on the outer wall of one side of the installation box 4, an installation slot 26 is opened on the outer wall of one side of the installation box 4, and a photovoltaic panel 9 is installed inside the installation slot 26 through a rotating shaft, a mounting hole 10 is opened on the outer wall of one side of the photovoltaic panel 9, a limiting bolt 11 is threadedly connected to the outer wall of one side of the installation box 4, and one end of the limiting bolt 11 is threadedly connected to the inside of the mounting hole 10.

[0027] Specifically, in this embodiment, it includes a box body 1, an installation box 4 is installed on the outer wall of one side of the top of the box body 1 through a hinge, and an insertion groove 7 is opened on the outer wall of one side of the installation box 4, and a fixing bolt 8 extending to the inside of the insertion groove 7 is threadedly connected to the outer wall of one side of the installation box 4. A plug-in block 5 is welded to the outer wall of one side of the top of the box body 1, and the plug-in block 5 is plugged into the plug-in groove 7. A threaded hole 6 is opened on the outer wall of one side of the plug-in block 5. The fixing bolt 8 is rotated to disengage the fixing bolt 8 from the threaded hole 6, so that the restriction between the installation box 4 and the plug-in block 5 is released, so that the installation box 4 can be hung down, so that the installation box 4 can be folded into the box body 1, and the folding of the guiding device is realized, which is convenient for carrying the device. When the installation box 4 is pulled open, the plug-in block 5 can be plugged into the plug-in groove 7, and then the fixing bolt 8 is rotated again, so that the fixing bolt 8 is screwed into the threaded hole 6, so that the installation box 4 stands on the box body 1; one end of the fixing bolt 8 is threadedly connected to the inside of the threaded hole 6, and a flash light is provided on the outer wall of one side of the installation box 4 12. The model of the flashlight 12 is preferably 008 red and blue LED waterproof and dustproof flashlight. A mounting groove 26 is provided on the outer wall of one side of the installation box 4, and a photovoltaic panel 9 is installed inside the mounting groove 26 through a rotating shaft. The model of the photovoltaic panel 9 is preferably hq001. The photovoltaic panel 9 cooperates with the inverter 20 inside the box 1 to convert light energy into electrical energy, so that the electrical energy is stored in the battery 15, so that the battery 15 can power electrical appliances such as the flashlight 12, greatly improving the endurance of the device. A mounting hole 10 is provided on the outer wall of one side of the photovoltaic panel 9, and a limiting bolt 11 is threadedly connected to the outer wall of one side of the installation box 4. The photovoltaic panel 9 is folded inside the mounting groove 26, and then the limiting bolt 11 is rotated so that the limiting bolt 11 is inserted into the mounting hole 10, so that the photovoltaic panel 9 is folded up. Conversely, the limiting bolt 11 is reversed and screwed, so that the photovoltaic panel 9 can fall from the inside of the mounting groove 26, so that the photovoltaic panel 9 is unfolded, and one end of the limiting bolt 11 is threadedly connected to the inside of the mounting hole 10.

[0028] The utility model provides a smart city traffic guidance device. When the traffic guidance device needs to be transported, the photovoltaic panel 9 can be folded inside the installation groove 26, and then the limit bolt 11 is rotated to insert the limit bolt 11 into the installation hole 10, so that the photovoltaic panel 9 is folded up, and then the fixing bolt 8 is rotated to disengage the fixing bolt 8 from the threaded hole 6, so that the restriction between the installation box 4 and the plug-in block 5 is released, so that the installation box 4 can hang down, and the installation box 4 is folded into the box body 1, thereby realizing the folding of the guidance device, reducing the volume of the guidance device, and helping to reduce the difficulty of carrying the guidance device.

[0029] In one embodiment provided by the present utility model, Figure 3As shown, a storage area 13 is provided on the outer wall of one side of the box body 1, a storage groove 22 is provided on the bottom of the box body 1, a box door 2 is installed on one side of the inner wall of the storage area 13 through a hinge, a shell 16 is installed inside the storage area 13 through bolts, and a plurality of support plates 14 distributed in an upper and lower structure are installed on the outer wall of one side of the shell 16 through bolts, and the support plates 14 can divide the space inside the storage area 13, so that some tools can be stored in the storage area 13 by classification, and a battery 15 is provided on one side of the bottom of the inner wall of the storage area 13, and the battery 15 can be the box body 1 The internal equipment provides power. An inverter 20 and a control module 21 are installed on one side of the inner wall of the storage area 13 by bolts. The inverter 20 model is preferably a 200KW inverter DC480V photovoltaic inverter power supply, which can convert the power generated by the photovoltaic panel 9 into direct current for convenient storage in the battery 15. The control module 21 is a microcomputer module, one side of which is stuck on the box 1. The battery 15 is electrically connected to the inverter 20 and the control module 21 through wires, and the inverter 20 is electrically connected to the photovoltaic panel 9 through wires.

[0030] In another embodiment provided by the present utility model, Figure 3-4 As shown, a groove 19 is provided on the outer wall of one side of the box body 1, a screw rod 17 is installed inside the shell body 16 through a bearing, and a handle 18 is installed on the top of the screw rod 17 through a flat key. The handle 18 is turned to make the screw rod 17 slide inside the shell body 16 with the connecting block 24, so that the connecting plate 23 is lifted into the storage groove 22, so that the wheel assembly 3 is folded up, so that the box body 1 is in direct contact with the ground, which improves the stability of the box body 1 on the ground and prevents the box body 1 from being blown down by the wind or the box body 1 from moving randomly on the ground. The handle 18 is located inside the groove 19; inside the storage groove 22 The wheel assembly 3 is slidably connected to the shell 16, and the wheel assembly 3 must be connected to the inside of the shell 16. The top of the wheel assembly 3 is threadedly connected to the screw rod 17. The wheel assembly 3 includes a connecting plate 23. Two universal wheels 25 are installed on the outer walls on both sides of the bottom of the connecting plate 23 by bolts. The universal wheels 25 facilitate the movement of the equipment on the ground. A connecting block 24 is welded to the outer wall on one side of the top of the connecting plate 23. The connecting block 24 facilitates the installation of the wheel assembly 3 inside the shell 16, and the connecting block 24 is slidably connected to the inside of the shell 16. The connecting block 24 and the screw rod 17 are threadedly connected.

[0031] Example 1

[0032] A smart city traffic guidance device comprises a box body 1, an installation box 4 is installed on the outer wall of one side of the top of the box body 1 through a hinge, and a plug-in slot 7 is opened on the outer wall of one side of the installation box 4, and a fixing bolt 8 extending to the inside of the plug-in slot 7 is threadedly connected to the outer wall of one side of the installation box 4. A plug-in block 5 is welded on the outer wall of one side of the top of the box body 1, and the plug-in block 5 is plugged into the plug-in slot 7. A threaded hole 6 is opened on the outer wall of one side of the plug-in block 5. The fixing bolt 8 is rotated to disengage the fixing bolt 8 from the threaded hole 6, so that the restriction between the installation box 4 and the plug-in block 5 is released, so that the installation box 4 can be hung down, so that the installation box 4 can be folded into the box body 1, so that the folding of the guidance device is realized, and the device is convenient to carry. When the installation box 4 is pulled open, the plug-in block 5 can be plugged into the plug-in slot 7, and then the fixing bolt 8 is rotated again, so that the fixing bolt 8 is screwed into the threaded hole 6, so that the installation box 4 stands on the box body 1; one end of the fixing bolt 8 is threadedly connected to the inside of the threaded hole 6, and a flash Light lamp 12, the model of flash lamp 12 is preferably 008 red and blue LED waterproof and dustproof flash lamp, an outer wall on one side of the installation box 4 is provided with an installation groove 26, and a photovoltaic panel 9 is installed inside the installation groove 26 through a rotating shaft, and the model of photovoltaic panel 9 is preferably hq001, and the photovoltaic panel 9 cooperates with the inverter 20 inside the box body 1 to convert light energy into electrical energy, so that the electrical energy is stored in the battery 15, so that the battery 15 can power electrical appliances such as the flash lamp 12, greatly improving the endurance of the equipment, an outer wall on one side of the photovoltaic panel 9 is provided with a mounting hole 10, and the outer wall on one side of the installation box 4 is threadedly connected with a limiting bolt 11, the photovoltaic panel 9 is folded inside the mounting groove 26, and then the limiting bolt 11 is rotated so that the limiting bolt 11 is inserted into the mounting hole 10, so that the photovoltaic panel 9 is folded up, and conversely, the limiting bolt 11 is reversed and screwed, so that the photovoltaic panel 9 can fall from the inside of the mounting groove 26, so that the photovoltaic panel 9 is unfolded, and one end of the limiting bolt 11 is threadedly connected to the inside of the mounting hole 10.

[0033] Example 2

[0034] This embodiment is further limited on the basis of the embodiment 1, wherein a storage area 13 is provided on the outer wall of one side of the box body 1, a storage groove 22 is provided on the bottom of the box body 1, a box door 2 is installed on one side of the inner wall of the storage area 13 through a hinge, a shell 16 is installed inside the storage area 13 through bolts, and a plurality of support plates 14 distributed in an upper and lower structure are installed on the outer wall of one side of the shell 16 through bolts, and the support plates 14 can divide the space inside the storage area 13, so as to facilitate the classified storage of some tools inside the storage area 13, and a battery 15 is provided on one side of the bottom of the inner wall of the storage area 13 The battery 15 can provide power for the internal equipment of the box 1. An inverter 20 and a control module 21 are installed on one side of the inner wall of the storage area 13 by bolts. The inverter 20 is preferably a 200KW inverter DC480V photovoltaic inverter power supply, which can convert the power generated by the photovoltaic panel 9 into direct current for easy storage in the battery 15. The control module 21 is a microcomputer module, one side of which is stuck on the box 1. The battery 15 is electrically connected to the inverter 20 and the control module 21 through wires, and the inverter 20 is electrically connected to the photovoltaic panel 9 through wires. A groove 19 is provided on the outer wall of one side of the box body 1, a screw rod 17 is installed inside the shell body 16 through a bearing, and a handle 18 is installed on the top of the screw rod 17 through a flat key. The handle 18 is turned to make the screw rod 17 slide with the connecting block 24 inside the shell body 16, so that the connecting plate 23 is lifted into the storage groove 22, so that the wheel assembly 3 is folded up, so that the box body 1 is in direct contact with the ground, which improves the stability of the box body 1 on the ground and prevents the box body 1 from being blown down by the wind or the box body 1 from moving randomly on the ground. The handle 18 is located inside the groove 19; inside the storage groove 22 A wheel assembly 3 is slidably connected, and the wheel assembly 3 must also be connected to the inside of the shell 16. The top of the wheel assembly 3 is threadedly connected to the screw rod 17. The wheel assembly 3 includes a connecting plate 23. Two universal wheels 25 are installed on the outer walls on both sides of the bottom of the connecting plate 23 by bolts. The universal wheels 25 facilitate the movement of the device on the ground. A connecting block 24 is welded to the outer wall on one side of the top of the connecting plate 23. The connecting block 24 facilitates the installation of the wheel assembly 3 inside the shell 16, and the connecting block 24 is slidably connected to the inside of the shell 16. The connecting block 24 and the screw rod 17 are threadedly connected.

[0035] Working principle: When the traffic guidance device needs to be transported, the photovoltaic panel 9 can be folded inside the installation groove 26, and then the limiting bolt 11 can be rotated to insert the limiting bolt 11 into the installation hole 10, so that the photovoltaic panel 9 is folded up, and then the fixing bolt 8 is rotated to disengage the fixing bolt 8 from the threaded hole 6, so that the restriction between the installation box 4 and the plug-in block 5 is released, so that the installation box 4 can be hung down, so that the installation box 4 is folded into the box body 1, and the folding of the guidance device is realized, which is convenient for carrying the device. After moving to a suitable position, the handle 18 can be rotated to make the screw rod 17 slide with the connecting block 24 inside the shell 16, so that the connecting plate 23 rises into the storage groove 22, so that The wheel assembly 3 is folded up, so that the box body 1 is in direct contact with the ground, which improves the stability of the box body 1 on the ground and prevents the box body 1 from being blown down by the wind or moving randomly on the ground. Subsequently, the installation box 4 is pulled open so that the plug-in block 5 can be plugged into the plug-in slot 7, and then the fixing bolt 8 is rotated to screw the fixing bolt 8 into the threaded hole 6, so that the installation box 4 stands on the box body 1, and then the limit bolt 11 is screwed so that the photovoltaic panel 9 can fall from the inside of the installation slot 26, so that the photovoltaic panel 9 is unfolded, and the control screen exposed by the subsequent operation control module 21 is turned on to turn on the device, so that the flash light 12 is turned on and lights up, and flashes under the control of the control module 21, thereby guiding the vehicle to pass.

[0036] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A smart city traffic guidance device, comprising a box (1), characterized in that: An installation box (4) is installed on an outer wall of one side of the top of the box body (1) via a hinge, and an outer wall of one side of the installation box (4) is provided with a plug-in slot (7), and an outer wall of one side of the installation box (4) is threadedly connected with a fixing bolt (8) extending into the inside of the plug-in slot (7), and an insert block (5) is welded to an outer wall of one side of the top of the box body (1), and the insert block (5) is inserted into the inside of the plug-in slot (7), and an outer wall of one side of the insert block (5) is provided with a threaded hole (6), and the fixing bolt (8) is threadedly connected to the outer wall of one side of the installation box (4) The end of the mounting box (4) is threadedly connected to the inside of the threaded hole (6); a flash lamp (12) is provided on the outer wall of one side of the mounting box (4); a mounting groove (26) is provided on the outer wall of one side of the mounting box (4); a photovoltaic panel (9) is installed inside the mounting groove (26) via a rotating shaft; a mounting hole (10) is provided on the outer wall of one side of the photovoltaic panel (9); a limiting bolt (11) is threadedly connected to the outer wall of one side of the mounting box (4); and one end of the limiting bolt (11) is threadedly connected to the inside of the mounting hole (10).

2. A smart city traffic guidance device according to claim 1, characterized in that: A storage area (13) is provided on an outer wall of one side of the box body (1), and a storage groove (22) is provided on the bottom of the box body (1).

3. A smart city traffic guidance device according to claim 2, characterized in that: A box door (2) is installed on one side of the inner wall of the storage area (13) via a hinge, a shell (16) is installed inside the storage area (13) via bolts, and a plurality of support plates (14) distributed in an upper and lower structure are installed on the outer wall of one side of the shell (16) via bolts.

4. A smart city traffic guidance device according to claim 2, characterized in that: A storage battery (15) is provided on one side of the bottom of the inner wall of the storage area (13); an inverter (20) and a control module (21) are installed on one side of the inner wall of the storage area (13) by means of bolts; the storage battery (15) is electrically connected to the inverter (20) and the control module (21) respectively by means of wires; and the inverter (20) is electrically connected to the photovoltaic panel (9) by means of wires.

5. The smart city traffic guidance device according to claim 3, characterized in that: A groove (19) is provided on the outer wall of one side of the box body (1), a screw rod (17) is installed inside the housing (16) via a bearing, and a handle (18) is installed at the top of the screw rod (17) via a flat key, and the handle (18) is located inside the groove (19).

6. A smart city traffic guidance device according to claim 5, characterized in that: The storage groove (22) is slidably connected to a wheel assembly (3), and the wheel assembly (3) is also connected to the inside of the housing (16). The top end of the wheel assembly (3) is threadedly connected to the screw rod (17).

7. A smart city traffic guidance device according to claim 6, characterized in that: The wheel assembly (3) comprises a connecting plate (23), two universal wheels (25) are mounted on the outer walls on both sides of the bottom of the connecting plate (23) via bolts, a connecting block (24) is welded to the outer wall on one side of the top of the connecting plate (23), and the connecting block (24) is slidably connected to the inside of the housing (16), and the connecting block (24) is threadedly connected to the screw rod (17).

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