5G longitudinal encryption fusion terminal and method for wireless grid connection of 5G slice private network

Abstract

The invention belongs to the technical field of terminals, and particularly relates to a 5G longitudinal encryption fusion terminal and method for wireless grid connection of a 5G slice private network, the terminal comprises a shell and electronic elements mounted in the shell, the electronic elements are distributed and mounted in the shell in a staggered manner, a shutter is mounted on the side wall of the shell, a cooling fan is mounted on the other side of the shell, and the cooling fan is mounted in the shell. According to the invention, the electronic components which are distributed in the shell in a staggered manner are matched with the heat dissipation fan and the shutter, so that air can flow through each electronic component, the heat dissipation efficiency is improved, the heat dissipation efficiency is improved, the heat dissipation efficiency is improved, and the heat dissipation efficiency is improved. In this way, the situation of poor heat dissipation efficiency caused by irregular distribution of electronic elements is avoided, meanwhile, the digital filter can filter signals, noise and interference components are removed, and the quality of the signals is improved.

Description

Technical Field

[0001] The present invention belongs to the field of terminal technology, and specifically relates to a 5G vertical encryption fusion terminal and method for 5G slicing private network wireless networking. Background Art

[0002] The 5G vertical encryption fusion terminal is a device that integrates 5G communication, vertical encryption and multiple communication and control functions. It is mainly used in the fields of smart grid, new energy grid connection, etc., especially in the access and dispatching system of distributed photovoltaic. The 5G vertical encryption fusion terminal is widely used in distributed photovoltaic projects, especially in the access and dispatching system of county photovoltaic, local power plants and distributed photovoltaic below 10 kV. Through this terminal, the power system access of distributed photovoltaic power stations can be realized, meeting the requirements of "observable, measurable, adjustable and controllable" of distributed photovoltaic. During the use of 5G vertical encryption fusion terminals, they are usually connected to the power system of photovoltaic power stations. Therefore, the 5G vertical encryption fusion terminals are usually not easily moved after being connected. The existing 5G vertical encryption fusion terminal shell is usually connected with multiple electronic components to meet the requirements of distributed photovoltaics being "observable, measurable, adjustable, and controllable", that is, "all-in-one" monitoring. However, all-in-one monitoring requires multiple electronic components. The heat generated by these electronic components is very large, and the interior of the 5G vertical encryption fusion terminal shell is often in a closed environment. Therefore, heat dissipation is the main problem of existing 5G vertical encryption fusion terminals. The existing ones basically install cooling fans directly on both sides of the 5G vertical encryption fusion terminal shell. However, due to the irregular distribution of multiple electronic components, the air flow will be greatly reduced, and some electronic components cannot fully dissipate heat during the air flow, thereby reducing the heat dissipation efficiency of the 5G vertical encryption fusion terminal. Summary of the invention

[0003] The purpose of the present invention is to provide a 5G vertical encryption fusion terminal that is wirelessly connected to a 5G slicing private network, aiming to solve the problems existing in the 5G vertical encryption fusion terminal in terms of heat dissipation, signal quality, wireless antenna protection and position adjustment, and improve the performance and ease of use of the terminal.

[0004] To achieve the above object, the present invention provides the following technical solutions: In a first aspect, the present invention provides a 5G vertical encryption fusion terminal for wireless networking of a 5G slice private network, including: A shell and electronic components installed inside the shell, wherein the electronic components are installed inside the shell in a staggered manner, shutters are installed on the side walls of the shell, a cooling fan is installed on the other side of the shell, a wiring terminal is connected to the front end of the shell, and the wiring terminal is electrically connected to the electronic components, and a wireless antenna is installed at the back end of the shell.

[0005] Preferably, the heat dissipation fan is mounted on the inner side of the side wall of the shell, and the side wall of the shell on which the heat dissipation fan is mounted is equipped with a filter.

[0006] Preferably, a fixing block is installed at the top of the shell, a digital filter is plugged into the top of the fixing block, and a fixing component is installed inside the fixing block.

[0007] Preferably, the fixing assembly comprises: a spring and an extrusion block, the spring is assembled inside the fixing block, and the extrusion block is connected to the end of the spring.

[0008] Preferably, the extrusion block is elastically telescopically connected to the fixed block via a spring, and the end of the extrusion block is in an arc shape.

[0009] Preferably, a protective plate is also connected to the back end of the shell, sliding grooves are provided on both sides of the shell, sliding blocks are installed on the inner side walls of the protective plate close to the two side ends of the shell, and protrusions are installed on the outer side walls of the protective plate close to the two side ends of the shell, and support plates are also connected to the two sides of the shell, and a threaded rod is threadedly connected to the surface of the support plate, and a rotating groove is provided on the surface of the protrusion.

[0010] Preferably, the protective plate is slidably connected to the shell through a slider and a slide groove, and the slider and the slide groove are adapted to form a T-shape.

[0011] Preferably, the end of the threaded rod is adapted to be connected inside the rotating groove, and the protective plate forms a threaded linear reciprocating motion with the shell through the threaded rod and the protrusion.

[0012] Preferably, protective pads are installed at the four top corners of the top and bottom ends of the shell, the bottom end of the shell is connected to a screw rod, and the surface of the screw rod is threadedly connected to a supporting foot.

[0013] Preferably, the support foot is connected to the housing in a lifting manner via a screw rod.

[0014] In a second aspect of the present invention, a method for installing a 5G vertical encryption fusion terminal is provided, comprising the following steps: Install the cooling fan on the inner side of the side wall of the housing; install the filter on the side wall where the cooling fan is installed; The electronic components are installed in a staggered manner inside the housing; Electrically connect the wiring terminal to the electronic component and install the wireless antenna on the back of the housing; Insert the digital filter into the top opening of the fixed block, and fix the digital filter on the fixed block by utilizing the elastic cooperation between the extrusion block and the spring; Slidingly connect the protective plate to the housing through the slider and the slide groove; rotating the threaded rod to make the protective plate fit the back end of the wireless antenna; Connect the support foot to the bottom end of the shell, rotate the support foot, and adjust the height along the thread on the surface of the screw rod to make the height of the shell meet the use requirements.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The present invention utilizes the cooperation between the electronic components installed in a staggered manner inside the shell and the cooling fan and the shutters to allow air to flow through each electronic component, thereby avoiding the irregular distribution of the electronic components and causing poor heat dissipation efficiency. At the same time, the digital filter can filter the signal, remove noise and interference components, and improve the quality of the signal. The protective plate can protect the installation position of the wireless antenna to avoid the lack of external protection of the wireless antenna, which is easy to break after a collision. Subsequently, the cooperation between the supporting feet and the screw rod can raise and lower the shell, thereby facilitating the adjustment of the position of the shell for use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings: Figure 1 It is a schematic diagram of the main structure of the present invention; Figure 2 It is a schematic diagram of the main structure of the present invention from the left side; Figure 3 It is a schematic diagram of the main structure of the present invention when viewed from above; Figure 4 It is a schematic diagram of the internal structure of the main body of the present invention; Figure 5 It is a schematic diagram of the cross-sectional structure of the fixing block of the present invention; Figure 6 It is a schematic diagram of the threaded rod connection structure of the present invention; Figure 7 It is a schematic diagram of the support foot installation structure of the present invention; Figure 8 For the present invention Figure 1 A in the figure is an enlarged structural diagram.

[0017] In the figure: 1. Shell; 2. Electronic components; 3. Shutters; 4. Cooling fan; 5. Terminals; 6. Wireless antenna; 7. Filter; 8. Fixing block; 9. Digital filter; 10. Spring; 11. Extrusion block; 12. Protective plate; 13. Slide groove; 14. Slider; 15. Bump; 16. Support plate; 17. Threaded rod; 18. Rotating groove; 19. Protective pad; 20. Screw rod; 21. Support foot. DETAILED DESCRIPTION

[0018] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments. It should be noted that the embodiments and features in the embodiments of the present application can be combined with each other without conflict.

[0019] The following detailed description is an exemplary description, which is intended to provide further detailed description of the present invention. Unless otherwise specified, all technical terms used in the present invention have the same meaning as those generally understood by those skilled in the art to which the present application belongs. The terms used in the present invention are only for describing specific embodiments, and are not intended to limit exemplary embodiments according to the present invention.

[0020] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0021] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, the meaning of "multiple" is two or more. In the description of the present invention, it should be noted that, unless otherwise clearly specified and defined, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0023] The present invention provides a 5G vertical encryption fusion terminal for 5G slice private network wireless connection, which integrates 5G communication, vertical encryption and multiple communication and control functions, and is particularly suitable for the fields of smart grid, new energy grid connection, etc., and plays an important role in distributed photovoltaic access and dispatching systems. Through this terminal, the power system access of distributed photovoltaic power stations can be realized, meeting the requirements of distributed photovoltaic "observable, measurable, adjustable and controllable".

[0024] The shell 1 serves as the main protective structure of the terminal, and a plurality of electronic components 2 are installed inside the shell 1. The heat dissipation system includes a heat dissipation fan 4 and a shutter 3. The heat dissipation fan 4 is installed on the inner side of the side wall of the shell 1, and generates wind force when working to blow the heat inside the shell 1 to the outside. The shutter 3 allows external air to enter the shell 1, forming air convection, further enhancing the heat dissipation effect. The electronic components 2 are distributed in a staggered manner inside the shell 1, and the air flow generated by the heat dissipation fan 4 can pass through each electronic component 2, thereby improving the heat dissipation efficiency. At the same time, the side wall where the heat dissipation fan 4 is installed is also equipped with a filter 7 to prevent dust and debris from entering the shell 1.

[0025] The terminal 5 is located at the front end of the housing 1 and is electrically connected to the electronic component 2 for connection and communication with an external device or system. The wireless antenna 6 is mounted on the back end of the housing 1 for realizing 5G communication and wireless grid connection functions. The digital filter 9 is plugged into the fixed block 8 at the top of the housing 1 and fixed by the elastic cooperation of the extrusion block 11 and the spring 10. The digital filter 9 can filter the signal, remove noise and interference components, and improve the signal quality. The protective plate 12 is slidably connected to the housing 1 through the slider 14 and the slide groove 13 to protect the installation position of the wireless antenna 6. The protective plate 12 forms a threaded linear reciprocating motion with the housing 1 through the threaded rod 17 and the protrusion 15, and the position of the protective plate 12 can be adjusted as needed. The support foot 21 is connected to the housing 1 through the screw rod 20 to form a lifting connection, and the position and height of the housing 1 can be adjusted as needed.

[0026] The terminal realizes the wireless connection function of 5G slice private network through wireless antenna 6, and supports high-speed data transmission and remote communication. Advanced encryption algorithms and technologies are used to ensure the security and confidentiality of data transmission. The digital filter 9 can filter the received signal to remove noise and interference components and improve the signal quality. Through the cooperation of cooling fan 4 and shutter 3, efficient heat dissipation effect is achieved to ensure the normal operation of electronic components 2. The design of protective plate 12 and support foot 21 can protect the terminal from interference and damage from the external environment.

[0027] To sum up, the 5G vertical encrypted fusion terminal for 5G slicing private network wireless networking provided by the present invention has the advantages of efficient heat dissipation, signal stability, security protection and flexible adjustment. It is particularly suitable for smart grid, new energy grid connection and other fields, and is of great significance to promoting the development of distributed photovoltaic access and scheduling systems.

[0028] Embodiment 1 See also Figure 1-Figure 8 , a 5G vertical encryption fusion terminal for 5G slicing private network wireless networking, including: A shell body 1 and electronic components 2 installed inside the shell body 1, wherein the electronic components 2 are installed inside the shell body 1 in a staggered manner, a shutter 3 is installed on the side wall of the shell body 1, a cooling fan 4 is installed on the other side of the shell body 1, a terminal 5 is connected to the front end of the shell body 1, and the terminal 5 and the electronic components 2 are electrically connected, and a wireless antenna 6 is installed at the back end of the shell body 1.

[0029] In a preferred embodiment, the cooling fan 4 is mounted on the inner side of the side wall of the housing 1 , and the side wall of the housing 1 on which the cooling fan 4 is mounted is equipped with a filter 7 .

[0030] In the embodiment, firstly, the electronic components 2 installed in a staggered manner inside the shell 1 are coordinated with the heat dissipation fan 4 and the shutter 3, so that the heat dissipation fan 4 works to generate wind force, which can blow the heat inside the shell 1 to the outside, and the external air enters the shell 1 through the shutter 3, and the air flows between the staggered electronic components 2, thereby dissipating heat for each electronic component 2, thereby avoiding the irregular distribution of the electronic components 2 and causing poor heat dissipation efficiency.

[0031] Embodiment 2 See also Figure 1-Figure 8 A fixing block 8 is installed at the top of the housing 1, a digital filter 9 is plugged into the top of the fixing block 8, and a fixing component is installed inside the fixing block 8.

[0032] In a preferred embodiment, the fixing assembly includes: a spring 10 and an extrusion block 11 , the spring 10 is assembled inside the fixing block 8 , and the extrusion block 11 is connected to the end of the spring 10 .

[0033] In a preferred embodiment, the extrusion block 11 is elastically telescopically connected to the fixing block 8 via the spring 10 , and the end of the extrusion block 11 is in an arc shape.

[0034] In the embodiment, the digital filter 9 can be fixed on the top of the fixed block 8 by plugging and installing the digital filter 9 and the fixed block 8, and the installation of the digital filter 9 utilizes the elastic cooperation of the extrusion block 11 and the spring 10. First, after the digital filter 9 is plugged into the top opening of the fixed block 8, the extrusion block 11 will be squeezed to shrink, and at the same time, the extrusion block 11 will squeeze the spring 10 to shrink and deform while shrinking. When the digital filter 9 is installed on the top of the fixed block 8, the elastic force of the spring 10 will push the extrusion block 11 to fit the two side walls of the digital filter 9, thereby squeezing and fixing the digital filter 9. At the same time, after the digital filter 9 is fixed, when it is not subjected to external force, the digital filter 9 is always fixed on the top of the fixed block 8. Then the digital filter 9 can filter the signal, remove noise and interference components, and improve the quality of the signal.

[0035] Embodiment 3 See also Figure 1-Figure 8 A protective plate 12 is also connected to the back end of the shell 1, and slide grooves 13 are provided on both sides of the shell 1. Slide blocks 14 are installed on the inner side walls of the protective plate 12 close to the two side ends of the shell 1, and protrusions 15 are installed on the outer side walls of the protective plate 12 close to the two side ends of the shell 1. Support plates 16 are also connected to the two sides of the shell 1, and threaded rods 17 are threadedly connected to the surface of the support plate 16, and a rotating groove 18 is provided on the surface of the protrusion 15.

[0036] In a preferred embodiment, the protection plate 12 is slidably connected to the housing 1 via the slider 14 and the slide groove 13 , and the slider 14 and the slide groove 13 are matched to form a T-shape.

[0037] In a preferred embodiment, the end of the threaded rod 17 is adapted to be connected to the inside of the rotating groove 18 , and the protective plate 12 forms a threaded linear reciprocating motion with the housing 1 through the threaded rod 17 and the protrusion 15 .

[0038] In the embodiment, first, after the wireless antenna 6 is connected to the 5G longitudinal encryption fusion terminal, the threaded rod 17 is rotated to move backward. At this time, the threaded rod 17 starts to rotate on the support plate 16, and at the same time, the end of the threaded rod 17 rotates in the rotating groove 18 opened on the surface of the protrusion 15. As the threaded rod 17 moves backward, the protective plate 12 will be driven to approach the wireless antenna 6. At the same time, the movement of the protective plate 12 will also drive the slider 14 to slide along the slide groove 13, so that the protective plate 12 will fit with the back end of the wireless antenna 6. This can avoid the wireless antenna 6 lacking external protection and being easily broken after a collision. The width of the protective plate 12 can be selected according to actual conditions.

[0039] Embodiment 4 See also Figure 1-Figure 8Protective pads 19 are installed at the four top corners of the top and bottom of the shell 1, and a screw rod 20 is connected to the bottom end of the shell 1. The surface of the screw rod 20 is threadedly connected to a supporting foot 21.

[0040] In a preferred embodiment, the support foot 21 is connected to the housing 1 via a screw rod 20 to form a lifting connection.

[0041] In the embodiment, the support leg 21 can be rotated to move along the thread on the surface of the screw rod 20, thereby driving the support leg 21 to be raised and lowered, thereby facilitating the adjustment of the position of the housing 1 for use.

[0042] In summary, according to the description of embodiments one to four, the 5G vertically encrypted fusion terminal utilizes the cooperation between the electronic components 2 installed in an interlaced manner inside the shell 1 and the cooling fan 4 and the shutter 3 to allow air to flow through each electronic component 2, thereby avoiding the irregular distribution of the electronic components 2 and causing poor heat dissipation efficiency. At the same time, the digital filter 9 can filter the signal, remove noise and interference components, and improve the signal quality, while the protective plate 12 can protect the installation position of the wireless antenna 6 to avoid the lack of external protection of the wireless antenna 6, which is easy to break after a collision. Subsequently, the cooperation between the supporting foot 21 and the screw rod 20 can raise and lower the shell 1, thereby facilitating the adjustment of the position of the shell 1 for use.

[0043] Embodiment 5 A method for installing a 5G vertical encryption fusion terminal, the specific steps are as follows: Install the cooling fan 4 and the filter 7: The cooling fan 4 is mounted on the inner side of the side wall of the housing 1. The filter 7 is installed on the side wall where the cooling fan 4 is installed to prevent dust from entering the interior of the housing 1.

[0044] Install the electronic components 2: Install the electronic components 2 in a staggered manner inside the housing 1 so that the heat dissipation channels between the components are unobstructed.

[0045] Install the connection terminal 5 and the wireless antenna 6: Electrically connect the connection terminal 5 to the electronic component 2 to ensure a firm and reliable connection. Install the wireless antenna 6 on the back of the housing 1 to ensure that the antenna is tightly connected to the housing 1.

[0046] Install the digital filter 9: plug the digital filter 9 into the top opening of the fixing block 8. Fix the digital filter 9 on the fixing block 8 by utilizing the elastic cooperation between the extrusion block 11 and the spring 10.

[0047] Install the protective plate 12: Slidingly connect the protective plate 12 to the housing 1 through the slider 14 and the slide groove 13. Rotate the threaded rod 17 to make the protective plate 12 fit the back end of the wireless antenna 6 so that the protective plate 12 can protect the wireless antenna 6.

[0048] Install the support foot 21: Connect the support foot 21 to the bottom of the housing 1 so that the support foot 21 can stably support the housing 1. Rotate the support foot 21 and adjust the height along the thread on the surface of the screw rod 20 so that the height of the housing 1 meets the use requirements.

[0049] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A 5G vertical encryption fusion terminal for 5G slicing private network wireless networking, characterized in that: It comprises a housing (1) and electronic components (2) installed inside the housing (1), wherein the electronic components (2) are installed inside the housing (1) in a staggered distribution; A shutter (3) is installed on the side wall of the shell (1), a cooling fan (4) is installed on the other side of the shell (1), a wiring terminal (5) is connected to the front end of the shell (1), and the wiring terminal (5) is electrically connected to the electronic component (2), and a wireless antenna (6) is installed on the back end of the shell (1).

2. The 5G vertical encryption fusion terminal according to claim 1, characterized in that: The heat dissipation fan (4) is mounted on the inner side of the side wall of the housing (1), and the side wall of the housing (1) on which the heat dissipation fan (4) is mounted is equipped with a filter screen (7).

3. The 5G vertical encryption fusion terminal according to claim 1, characterized in that: A fixing block (8) is installed at the top of the housing (1), a digital filter (9) is plugged into the top of the fixing block (8), and a fixing component is installed inside the fixing block (8).

4. The 5G vertical encryption fusion terminal according to claim 3 is characterized in that: The fixing assembly comprises: a spring (10) and an extrusion block (11); the spring (10) is assembled inside the fixing block (8), and the extrusion block (11) is connected to the end of the spring (10).

5. The 5G vertical encryption fusion terminal according to claim 4 is characterized in that: The extrusion block (11) is elastically telescopically connected to the fixed block (8) via a spring (10), and the end of the extrusion block (11) is in an arc shape.

6. The 5G vertical encryption fusion terminal according to claim 1, characterized in that: The back end of the shell (1) is also connected to a protective plate (12), and two sides of the shell (1) are provided with sliding grooves (13). The inner side walls of the protective plate (12) close to the two side ends of the shell (1) are provided with sliding blocks (14), and the outer side walls of the protective plate (12) close to the two side ends of the shell (1) are provided with protrusions (15). The two sides of the shell (1) are also connected to support plates (16), and the surface of the support plate (16) is threadedly connected to a threaded rod (17), and the surface of the protrusion (15) is provided with a rotation groove (18).

7. The 5G vertical encryption fusion terminal according to claim 6, characterized in that: The protection plate (12) is slidably connected to the housing (1) via a slider (14) and a slide groove (13), and the slider (14) and the slide groove (13) are matched to form a T-shape.

8. The 5G vertical encryption fusion terminal according to claim 6, characterized in that: The end of the threaded rod (17) is adapted to be connected inside the rotating groove (18), and the protective plate (12) forms a threaded linear reciprocating motion with the housing (1) through the threaded rod (17) and the protrusion (15).

9. The 5G vertical encryption fusion terminal according to claim 1, characterized in that: Protective pads (19) are installed at four top corners of the top and bottom ends of the shell (1); a screw rod (20) is connected to the bottom end of the shell (1); and a support foot (21) is threadedly connected to the surface of the screw rod (20); The support foot (21) is connected to the housing (1) in a lifting manner via a screw rod (20).

10. A method for installing a 5G vertical encryption fusion terminal according to any one of claims 1 to 9, characterized in that: The steps include: Installing a cooling fan (4) on the inner side of the side wall of the housing (1); installing a filter screen (7) on the side wall where the cooling fan (4) is installed; The electronic components (2) are installed in a staggered manner inside the housing (1); The connection terminal (5) is electrically connected to the electronic component (2), and the wireless antenna (6) is installed on the back end of the housing (1); Inserting the digital filter (9) into the top opening of the fixing block (8), and fixing the digital filter (9) on the fixing block (8) by utilizing the elastic cooperation between the extrusion block (11) and the spring (10); The protective plate (12) is slidably connected to the housing (1) via the slider (14) and the slide groove (13); the threaded rod (17) is rotated to make the protective plate (12) fit with the back end of the wireless antenna (6); The supporting foot (21) is connected to the bottom end of the housing (1), and the supporting foot (21) is rotated to adjust the height of the housing (1) along the thread on the surface of the screw rod (20) so that the height of the housing (1) meets the use requirements.

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