Driving shed electronic display screen protection device and unmanned vibratory roller
Patent Information
- Application Number
- CN202522310063.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-31
- Publication Date
- 2026-10-09
- Estimated Expiration
- 2035-10-31
AI Technical Summary
然而,该电子显示屏长期裸露于设备机体上,在施工场景中常见的扬尘、渣土飞溅、强降雨等恶劣条件下,其防水、防尘性能无法达到使用要求,易因进水、积尘导致屏幕故障或数据读取异常;此外,当设备处于停机待命或长期停放于施工场地时,电子显示屏缺乏有效防护措施且无专人值守,存在较高的被盗丢失风险,直接影响设备后续正常作业
(1)防水盒通过侧板、U 型安装板与底板围合形成封闭安装腔,将显示屏完全容纳其中,可隔绝施工扬尘与渣土飞溅;侧门闭合时通过磁钢与磁吸板紧密吸合,形成密封防线,避免雨水、泥浆渗入,确保显示屏在强降雨、高湿度环境下正常显示数据,减少故障风险。U 型安装板边缘设有锁鼻板,侧门闭合后可配合挂锁锁止,解决无人化压路机停放时无专人值守的问题,有效避免显示屏被盗,减少维修更换成本,保障后续施工数据监控功能的连续性。
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Figure CN224844298U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a protective device for the electronic display screen in the driver's cab and an unmanned vibratory roller, belonging to the field of roller technology. Background Technology
[0002] Currently, all unmanned vibratory rollers are equipped with electronic displays to present real-time equipment construction parameters (such as compaction degree, travel speed, and working mileage). Operators rely on the real-time data displayed on the screen to dynamically adjust the equipment's construction status to ensure work quality. However, these electronic displays are constantly exposed on the equipment body. Under harsh conditions commonly encountered in construction scenarios, such as dust, debris splashing, and heavy rainfall, their waterproof and dustproof performance fails to meet requirements, making them prone to screen malfunctions or data reading errors due to water ingress and dust accumulation. Furthermore, when the equipment is idle or parked at the construction site for extended periods, the electronic displays lack effective protection and are not under dedicated personnel, posing a high risk of theft and loss, directly impacting subsequent normal operation of the equipment. Summary of the Invention
[0003] To address the problems existing in the prior art, this utility model provides a protective device for the electronic display screen in the driver's cab and an unmanned vibratory roller, which protects the electronic display screen while ensuring the normal operation of the roller.
[0004] To achieve the above objectives, this utility model employs a protective device for an electronic display screen in a driver's cab, comprising: A waterproof box is installed on the uprights of the driver's cab. The waterproof box includes a side panel, a U-shaped mounting plate, and a bottom plate. The U-shaped mounting plate is fixed to one side of the side panel, and the bottom plate is fixed to the lower end of the side panel and the U-shaped mounting plate. The three together form a mounting cavity for accommodating the electronic display screen. A pad is detachably installed between the electronic display screen and the side panel. The edge of the U-shaped mounting plate is provided with a magnetic suction plate and a locking nose plate. The side door includes a side door panel, which is hinged to the base plate. The side door panel can be rotated around the hinge to open and close to cover the opening of the waterproof box. A magnet seat is provided on the inner side of the side door panel corresponding to the position of the magnetic plate. A magnet is embedded in the magnet seat. When the side door is closed, the magnet attracts the magnetic plate to seal the opening of the waterproof box. The limiting seat is fixed on the driver's cab column and located below the bottom plate of the waterproof box. The limiting seat includes a second magnet. When the side door panel is flipped open around the hinge to a preset angle, the outer side of the side door panel is attracted to the second magnet to fix the open state of the side door.
[0005] As an improvement, the upper part of the side plate of the waterproof box is provided with mounting holes, which are fixed to the cab column by fastening bolts; the fastening bolts pass through the mounting holes of the front and rear walls of the cab column and the side plate from the outside to the inside and extend into the interior of the waterproof box, and the fastening bolts are tightened by nuts.
[0006] As an improvement, the edge of the U-shaped mounting plate is also provided with a ring-shaped sealing strip. The sealing strip is located on the outside of the magnetic suction plate and has a U-shaped cross-section. When the side door is closed, the sealing strip is squeezed and deformed by the inside of the side door panel, filling the gap between the U-shaped mounting plate and the side door panel.
[0007] As an improvement, the lock nose plate is an L-shaped metal plate, with one end vertically welded and fixed to the top of the inner wall of the U-shaped mounting plate, and the other end extending horizontally to the corresponding position after the side door is closed; the extended end of the lock nose plate has a circular lock hole.
[0008] As an improvement, the hinge includes two hinge plates and a pin. One hinge plate is fixed to the base plate by bolts, and the other hinge plate is fixed to the side wall of the side door by bolts. All bolts of the hinge are equipped with nuts. The pin of the hinge is fitted with a wear-resistant copper sleeve on the outside.
[0009] As an improvement, the limiting seat also includes a U-shaped limiting plate, which is fixed to the cab column by bolts, and the magnet is fixed to the top surface of the limiting plate.
[0010] As an improvement, a U-shaped handle is fixedly provided on the outer wall of the side door panel, and the outer surface of the handle is provided with knurled anti-slip texture; triangular reinforcing ribs are also welded at the connection between the two ends of the handle and the side door panel.
[0011] As an improvement, a wire hole is provided at the lower part of the side plate, and a waterproof connector is installed in the wire hole; the connecting wires of the electronic display screen extend to the outside of the waterproof box after passing through the waterproof connector.
[0012] As an improvement, the pad is an elastic adjustment pad made of wear-resistant rubber or nylon; the pad has through holes that are compatible with the mounting holes of the electronic display screen.
[0013] A second aspect of this utility model also provides an unmanned vibratory roller, wherein the unmanned vibratory roller is equipped with the aforementioned electronic display screen protection device in the driver's cab.
[0014] Compared with the prior art, the beneficial effects of this utility model are: (1) The waterproof box forms a closed mounting cavity by enclosing the side plate, U-shaped mounting plate and bottom plate, which completely houses the display screen and can isolate construction dust and debris splashes. When the side door is closed, it is tightly attracted by the magnet and magnetic suction plate to form a sealed defense line to prevent rainwater and mud from seeping in, ensuring that the display screen can display data normally in heavy rainfall and high humidity environments, and reducing the risk of failure. The edge of the U-shaped mounting plate is equipped with a lock nose plate, which can be locked with a padlock after the side door is closed, solving the problem of no dedicated personnel on duty when the unmanned road roller is parked, effectively preventing the display screen from being stolen, reducing maintenance and replacement costs, and ensuring the continuity of subsequent construction data monitoring functions.
[0015] (2) The side door is connected to the base plate by a hinge and can be flipped up and opened, allowing staff to view screen data without disassembling the device. After the side door is opened, the magnet of the limit seat can fix it at a preset angle, preventing the side door from shaking and colliding due to the vibration of the road roller. This does not obstruct the view and reduces noise interference. A removable pad is provided between the display screen and the side plate of the waterproof box, which can be flexibly adjusted (increasing or decreasing the number or adjusting the position) according to the thickness of the display screen and the mounting hole position. There is no need to design a separate protective device for a specific display screen, reducing the adaptation cost. At the same time, it avoids direct contact between the display screen and the box body, reducing vibration and impact damage.
[0016] (3) The waterproof box has a modular assembly structure, and each component is fixed with conventional bolts. During installation, only the whole assembly needs to be fixed to the cab column, without modifying the machine body. Subsequent maintenance (such as replacing the display screen or repairing the hinges) can be performed by disassembling the corresponding components individually, which is simple to operate and reduces labor costs. The overall structure of the device is compact, and the components are made of lightweight metal or wear-resistant materials, which will not increase the extra load on the road roller and avoid affecting the stability of driving and compaction. At the same time, the waterproof box has high connection strength with the column and can withstand high-frequency vibration, ensuring long-term stability without loosening. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0018] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a structural schematic diagram of the waterproof box of this utility model; Figure 3 This is a schematic diagram of the side door structure of this utility model; Figure 4 This is a schematic diagram of the structure of the limiting seat of this utility model; Figure 5This is a schematic diagram of the side door in the closed state of this utility model; Figure 6 This is a schematic diagram of the side door in the open state of this utility model; In the diagram: 1. Waterproof box, 1-1. U-shaped mounting plate, 1-2. Lock nose plate, 1-3. Magnetic plate, 1-4. Welding nut, 1-5. Side plate, 1-6. Base plate, 2. Side door, 2-1. Handle, 2-2. Side door panel, 2-3. Magnet seat, 2-4. Magnet one, 3. Hinge, 4. Pad, 5. Limit seat, 5-1. Limit plate, 5-2. Magnet two, 6. Electronic display screen, 7. Cabin upright, 8. Fastening bolt. Detailed Implementation
[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this application will be described in detail below through specific embodiments. It should be understood that the embodiments of this application and the specific features in the embodiments are detailed descriptions of the technical solutions of this application, rather than limitations on the technical solutions of this application. In the absence of conflict, the embodiments of this application and the technical features in the embodiments can be combined with each other.
[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0021] like Figures 1-6 As shown, a protective device for an electronic display screen in a driver's cab includes a waterproof box 1, a side door 2, and a limiting seat 5; The waterproof box 1 consists of three parts: side plate 1-5, U-shaped mounting plate 1-1, and base plate 1-6. The U-shaped mounting plate 1-1 is welded to one side of the side plate 1-5, and the base plate 1-6 is L-shaped and welded to the lower end of both the side plate 1-5 and the U-shaped mounting plate 1-1. Together, they form a mounting cavity with an opening at the top. The size of this cavity is adapted to the shape of the electronic display screen 6, allowing it to be completely contained within, effectively preventing dust and debris particles generated during construction from intruding into the surface or interior of the display screen, thus avoiding blurry displays or circuit malfunctions caused by dust accumulation. A detachable pad 4 is installed between the electronic display screen 6 and the side plate 1-5. Workers can adjust the number of pads 4 (e.g., 1-3 layers) or their fixed position on the side plate 1-5 to accommodate different specifications of the electronic display screen 6, depending on its thickness and the position of the mounting holes. The pad 4... Made of elastic material, it can buffer the direct collision between the display screen and the inner wall of the waterproof box 1 when the road roller generates high-frequency vibration, reducing the damage to the internal components of the display screen. At the edge of the U-shaped mounting plate 1-1 away from the side plate 1-5, a magnetic suction plate 1-3 and a lock nose plate 1-2 are fixedly installed respectively. The lock nose plate 1-2 is used to physically lock the electronic display screen 6 with a conventional padlock after the side door 2 is closed, preventing the unmanned road roller from being stolen when it is parked on the construction site without a dedicated person to guard it. The side door 2, serving as a protective component covering the opening of the waterproof box 1, includes a side door panel 2-2 for blocking the opening. The side door panel 2-2 is hinged to the bottom plate 1-6 of the waterproof box 1 via a hinge 3. The two flaps of the hinge 3 are fixed to the outer surface of the bottom plate 1-6 and the lower edge of the side door panel 2-2, respectively, allowing the side door panel 2-2 to rotate around the pivot of the hinge 3, thus opening and closing the opening of the waterproof box 1. When workers need to view real-time construction data (such as compaction degree and driving speed) on the electronic display screen 6, they do not need to disassemble the entire protective device; they only need to rotate the side door panel 2-2, which is convenient and does not affect construction efficiency. On the side of the side door panel 2-2 facing the inside of the waterproof box 1, corresponding to the position of the magnetic plate 1-3 on the U-shaped mounting plate 1-1, a magnet seat 2-3 is fixedly installed. A magnet 2-4 is embedded inside the magnet seat 2-3. When the side door 2 is closed, the magnet 2-4... It will generate a strong adsorption force with the magnetic plate 1-3, so that the side door panel 2-2 is tightly attached to the edge of the U-shaped mounting plate 1-1, thereby enhancing the sealing of the opening of the waterproof box 1 and effectively preventing rainwater, mud and other liquids from seeping into the installation cavity from the opening gap, thus avoiding short circuit failure of the electronic display screen 6 due to water ingress. The limiting seat 5, serving as a component for fixing the side door 2 in the open state, is bolted to the cab column 7, and its installation position is directly below the bottom plate 1-6 of the waterproof box 1, ensuring that the side door 2 corresponds to the limiting seat 5 after opening. The limiting seat 5 includes a magnet 5-2 for attracting the side door. When the operator flips the side door panel 2-2 around the hinge 3 to a preset angle, the outer wall of the side door panel 2-2 facing the limiting seat 5 will contact the magnet 5-2 and be attracted and fixed. This fixing method can effectively prevent the side door panel 2-2 from shaking randomly and colliding with the waterproof box 1 or other components due to machine vibration during operation, thereby reducing the interference of vibration noise to the operator, and also preventing component wear caused by the shaking of the side door.
[0022] In some embodiments, to ensure a secure connection between the waterproof box 1 and the cab column 7, mounting holes adapted to the fastening bolts 8 are pre-drilled on the upper part of the side plates 1-5 of the waterproof box 1. During installation, the fastening bolts 8 pass through the front and rear walls of the cab column 7 from the outside, then through the mounting holes on the side plates 1-5, and finally extend into the interior of the waterproof box 1. Afterwards, the waterproof box 1 is firmly fixed to the cab column 7 by tightening a nut at the end of the fastening bolts 8. This method of external penetration and internal tightening hides the nut inside the waterproof box 1, effectively preventing the nut from being exposed and maliciously loosened or disassembled. It also ensures that the connection strength is sufficient to withstand the high-frequency vibrations generated during roller operation, preventing the waterproof box 1 from loosening or shifting after long-term use.
[0023] In some embodiments, to further enhance the waterproof and dustproof performance of the opening of the waterproof box 1, an additional annular sealing strip is fixedly installed at the edge of the magnetic suction plate 1-3 on the U-shaped mounting plate 1-1. The sealing strip is made of elastic rubber and is installed on the outside of the magnetic suction plate 1-3, with a U-shaped cross-section. When the side door 2 is closed, the inside of the side door panel 2-2 exerts a squeezing force on the sealing strip, causing it to deform elastically and fill the tiny gap between the U-shaped mounting plate 1-1 and the side door panel 2-2. This double sealing structure (magnetic attraction and sealing strip) can effectively prevent rainwater and dust from entering the installation cavity in harsh construction environments such as heavy rainfall, high humidity, and dust, ensuring that the electronic display screen 6 is always in a dry and clean working environment.
[0024] In some embodiments, such as Figure 2 As shown, the lock nose plate 1-2 is made of metal and has an overall L-shaped shape, which can better fit the internal space of the waterproof box 1. One end of the lock nose plate 1-2 is vertically fixed to the top of the inner wall of the U-shaped mounting plate 1-1 by welding, while the other end extends horizontally towards the direction after the side door 2 is closed, ensuring that when the side door 2 is closed, the extended end of the lock nose plate 1-2 can correspond to the locking hole on the side door plate 2-2. A circular lock hole is provided at the extended end of the lock nose plate 1-2, and the diameter of the lock hole is compatible with the lock beam size of conventional padlocks on the market. When the unmanned road roller is parked, the staff only needs to close the side door 2, then pass the padlock through the lock hole of the lock nose plate 1-2 and lock it to physically lock the side door 2, fundamentally solving the problem of the theft of the electronic display screen 6, reducing the equipment repair and replacement costs caused by the loss of the display screen, and avoiding the impact of the missing display screen on the normal progress of subsequent construction.
[0025] In some embodiments, such as Figure 5 As shown, the hinge 3, as the core component connecting the side door 2 and the base plate 1-6, consists of two metal hinge plates and a pin. One hinge plate is fixed to the surface of the base plate 1-6 by bolts, while the other hinge plate is fixed to the lower end of the side wall of the side door 2-2 by bolts. To prevent the hinge bolts from loosening due to the vibration of the road roller, all bolts fixing the hinge 3 are equipped with nuts. The tightening of the nuts ensures that the hinge plates will not fall off. Since the thickness of the base plate 1-6 is insufficient for tapping, the bolts are fixed by welding nuts 1-4 onto the base plate 1-6. At the same time, a wear-resistant copper sleeve is also fitted on the outside of the pin of the hinge 3. The copper sleeve can reduce the coefficient of friction between the pin and the hinge plate, reduce the wear caused by the frequent flipping of the side door 2, thereby extending the overall service life of the hinge 3 and reducing the frequency and cost of later maintenance and replacement of the hinge.
[0026] In some embodiments, such as Figure 4 As shown, the limiting seat 5 also includes a U-shaped limiting plate 5-1; the limiting plate 5-1 is made of high-strength metal plate bent into shape, and the U-shaped structure can enhance its own load-bearing strength and anti-deformation ability, and prevent the limiting plate 5-1 from bending due to vibration after long-term use; the limiting plate 5-1 is fixed to the cab column 7 by bolts passing through its two flanges, and the magnet 5-2 is fixedly installed in the middle of the top surface of the limiting plate 5-1; this structural design can ensure that the installation position of the magnet 5-2 is stable and will not shift due to vibration, thereby ensuring that the side door 2 can accurately engage with the magnet 5-2 after opening, and maintaining the stability of the side door fixing effect in the long term.
[0027] In some embodiments, such as Figure 3 , Figure 5 As shown, to facilitate the opening and closing of the side door 2, a U-shaped handle 2-1 is fixedly installed on the outer wall of the side door panel 2-2. The handle 2-1 is made of stainless steel, which has good rust resistance and is suitable for the humid environment of the construction site. The outer surface of the handle 2-1 is also processed with knurled anti-slip texture, which can increase the friction between the hand and the handle and prevent the staff from slipping when holding the handle when their hands are covered with mud or rainwater. At the same time, in order to enhance the connection strength between the handle 2-1 and the side door panel 2-2, triangular reinforcing ribs are welded at the connection points of the handle 2-1 and the side door panel 2-2. The reinforcing ribs can disperse the stress generated when the handle is subjected to force and prevent the connection between the handle and the side door panel from breaking after long-term use.
[0028] In some embodiments, such as Figure 2As shown, to enable power supply and data transmission for the electronic display screen 6, a wire hole is provided at the lower part of the side plate 1-5 of the waterproof box 1. The diameter of the wire hole is adapted to the outer diameter of the connecting wire harness of the electronic display screen 6. Inside the wire hole, a waterproof connector is installed. The protection level of the waterproof connector is not lower than IP67, which can effectively prevent external liquids from entering the interior of the waterproof box 1 through the wire hole. The connecting wire harness of the electronic display screen 6 (including power cord and data cable) passes through the waterproof connector from inside the waterproof box 1 and extends to the outside of the waterproof box 1 to connect with the control system of the road roller. Furthermore, sealant is filled in the gap between the waterproof connector and the wire harness to further enhance the sealing of the wire connection and prevent rainwater and moisture from seeping in from the gap between the wire harness and the connector, thus protecting the circuit of the electronic display screen 6 from water damage.
[0029] In some embodiments, the pad 4 is an elastic adjustment pad made of wear-resistant rubber or nylon. These two materials not only have good elasticity, which can buffer vibration, but also have excellent wear resistance, preventing the display screen from becoming loose due to wear after long-term use. The pad 4 has multiple through holes that match the mounting holes of the electronic display screen 6. Workers can use bolts to pass through these through holes to fix the electronic display screen 6 and the pad 4 together to the side plates 1-5. When replacing the electronic display screen 6 with a different specification, it is only necessary to adjust the mounting position of the pad 4 or replace the pad with the corresponding through hole to fix the display screen. There is no need to modify the structure of the waterproof box 1, which greatly reduces the adaptation cost of the protective device to different displays screens.
[0030] Finally, in a second aspect, this utility model also provides an unmanned vibratory roller, wherein the driver's cab column 7 of the unmanned vibratory roller is equipped with the aforementioned driver's cab electronic display screen protective device. When road rollers are used for compaction operations in highway construction and municipal engineering, this protective device provides comprehensive protection for the electronic display screen 6, ensuring its stable operation at all times. Workers can view the road roller's construction parameters (such as compaction degree, operating mileage, and hydraulic system pressure) in real time through the display screen and adjust construction strategies accordingly. Simultaneously, this device effectively prevents display screen malfunctions caused by water ingress or dust accumulation, as well as loss due to theft, ensuring the continuity of data monitoring during construction and thus avoiding substandard construction quality or delays in construction progress caused by display screen problems.
[0031] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.
Claims
1. A protective device for an electronic display screen in a driver's cab, characterized in that, include: A waterproof box is installed on the uprights of the driver's cab. The waterproof box includes a side panel, a U-shaped mounting plate, and a bottom plate. The U-shaped mounting plate is fixed to one side of the side panel, and the bottom plate is fixed to the lower end of the side panel and the U-shaped mounting plate. The three together form a mounting cavity for accommodating the electronic display screen. A pad is detachably installed between the electronic display screen and the side panel. The edge of the U-shaped mounting plate is provided with a magnetic suction plate and a locking nose plate. The side door includes a side door panel, which is hinged to the base plate. The side door panel can be rotated around the hinge to open and close to cover the opening of the waterproof box. A magnet seat is provided on the inner side of the side door panel corresponding to the position of the magnetic plate. A magnet is embedded in the magnet seat. When the side door is closed, the magnet attracts the magnetic plate to seal the opening of the waterproof box. The limiting seat is fixed on the driver's cab column and located below the bottom plate of the waterproof box. The limiting seat includes a second magnet. When the side door panel is flipped open around the hinge to a preset angle, the outer side of the side door panel is attracted to the second magnet to fix the open state of the side door.
2. The protective device for the electronic display screen in a driver's cab according to claim 1, characterized in that, The waterproof box has mounting holes on the upper part of its side plate, which are fixed to the cab column by fastening bolts. The fastening bolts pass through the mounting holes of the front and rear walls and side plates of the cab column from the outside to the inside and extend into the waterproof box. The fastening bolts are tightened by nuts.
3. The driver's cab electronic display screen protection device according to claim 1, characterized in that, The edge of the U-shaped mounting plate is also provided with a ring-shaped sealing strip. The sealing strip is located on the outside of the magnetic plate and has a U-shaped cross-section. When the side door is closed, the sealing strip is squeezed and deformed by the inside of the side door panel, filling the gap between the U-shaped mounting plate and the side door panel.
4. The driver's cab electronic display screen protection device according to claim 1, characterized in that, The lock nose plate is an L-shaped metal plate, with one end vertically welded and fixed to the top of the inner wall of the U-shaped mounting plate, and the other end extending horizontally to the corresponding position after the side door is closed; the extended end of the lock nose plate has a circular lock hole.
5. A protective device for an electronic display screen in a driver's cab according to claim 1, characterized in that, The hinge includes two hinge plates and a pin. One hinge plate is fixed to the base plate by bolts, and the other hinge plate is fixed to the side wall of the side door by bolts. All bolts of the hinge are equipped with nuts. The pin of the hinge is fitted with a wear-resistant copper sleeve on the outside.
6. A protective device for an electronic display screen in a driver's cab according to claim 1, characterized in that, The limiting seat also includes a U-shaped limiting plate, which is fixed to the cab column by bolts, and the magnet is fixed to the top surface of the limiting plate.
7. A protective device for an electronic display screen in a driver's cab according to claim 1, characterized in that, A U-shaped handle is fixedly provided on the outer wall of the side door panel, and the outer surface of the handle is provided with knurled anti-slip texture; triangular reinforcing ribs are also welded at the connection between the two ends of the handle and the side door panel.
8. A protective device for an electronic display screen in a driver's cab according to claim 1, characterized in that, The lower part of the side panel has a wire hole, and a waterproof connector is installed in the wire hole; the connecting wires of the electronic display screen pass through the waterproof connector and extend to the outside of the waterproof box.
9. A protective device for an electronic display screen in a driver's cab according to claim 1, characterized in that, The pad is an elastic adjustment pad, made of wear-resistant rubber or nylon; the pad has through holes that are compatible with the mounting holes of the electronic display screen.
10. An unmanned vibratory roller, characterized in that, The unmanned vibratory roller is equipped with a protective device for the electronic display screen in the driver's cab as described in any one of claims 1-9.