Top cover structure of heavy truck
By designing an extended compartment and observation window on the top cover of the heavy truck, and using a combination of inner and outer glass and reinforcing strips, the problem of insufficient height of the top cover of the heavy truck is solved, improving the driver's comfort and safety, and enhancing space utilization and heat and sound insulation effects.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-26
- Publication Date
- 2026-03-17
AI Technical Summary
The existing heavy truck roof is too low, resulting in insufficient headroom for the driver when moving around in the cab, affecting comfort and the utilization of sleeper space.
Design a heavy truck top cover structure with an expansion chamber and observation window, using a combination of inner and outer glass, vacuum state and one-way viewing glass to enhance sealing and heat and sound insulation, and set reinforcing strips inside the top cover body to improve strength.
The increased effective height of the cab and the addition of a sleeper berth provide a more comfortable driving environment, enhancing the driver's freedom of movement and safety, while also reducing wind noise and heat transfer and protecting privacy.
Smart Images

Figure CN223999629U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of automotive parts technology, and in particular relates to a top cover structure for heavy trucks. Background Technology
[0002] The heavy-duty truck roof is a component on the top of the cab of a heavy-duty truck, and is mostly made of metal or composite materials. It serves to protect the cab, ensure the safety of the driver and passengers, enhance the vehicle's aesthetics, and reduce noise and provide heat insulation. Its design and manufacturing must take into account multiple requirements such as strength, lightweight, and manufacturability.
[0003] The height of the top cover of conventional heavy trucks is relatively low, resulting in limited headroom and overhead space for the driver when standing in the cab. Additionally, the upper space of the sleeper berth in the cab is also relatively small, affecting the driver's daily activities in the sleeper berth.
[0004] Therefore, it is necessary to improve the top cover structure in the existing technology. Utility Model Content
[0005] The purpose of this utility model is to overcome the defects in the existing technology and provide a top cover structure for heavy trucks to improve the comfort of drivers.
[0006] To achieve the above objectives, the specific technical solution for the top cover structure of the heavy-duty truck of this utility model is as follows:
[0007] A top cover structure for a heavy truck includes a top cover body with an open bottom, an expansion chamber inside the top cover body, and observation windows on both side walls of the top cover body.
[0008] Preferably, in order to improve the comfort of the cab, the inner side of the observation window is sealed with inner glass, and the outer side of the observation window is sealed with outer glass.
[0009] Preferably, in order to improve the ease of installation of the outer glass, an adhesive injection groove is provided on the outer side of the observation window, the adhesive injection groove is arranged around the circumference of the observation window, and the outer glass covers the adhesive injection groove.
[0010] Preferably, in order to improve the convenience and firmness of the installation of the inner glass, the inner glass is fixedly connected to the top cover body by fasteners, and multiple fasteners are provided around the four edges of the inner glass.
[0011] Preferably, in order to reliably fix the inner glass, the fixing member includes a pressure plate detachably connected to the top cover body, the pressure plate pressing the inner glass onto the observation window from the inside.
[0012] Preferably, in order to improve the sealing performance of the inner glass, a sealing ring is provided on the inner side of the observation window, and the sealing ring is arranged around the circumference of the observation window.
[0013] Preferably, in order to improve the heat insulation and sound insulation effect at the observation window and enhance the comfort of the cab, the space between the inner glass and the outer glass is in a vacuum state.
[0014] Preferably, in order to protect the driver's privacy, at least one of the inner glass and the outer glass is a one-way viewing glass.
[0015] Preferably, in order to further improve the comfort of the cab, the top surface of the main body of the roof is provided with an installation port.
[0016] Preferably, in order to improve the strength of the top cover body, a reinforcing strip is fixedly connected to the top inner wall of the top cover body, and the reinforcing strip is distributed around the mounting opening to form a grid-like structure.
[0017] The top cover structure of this heavy truck has the following advantages: the expansion chamber of the top cover body is connected to the cab, increasing the effective height space of the cab and improving the driver's daily activity comfort. At the same time, the increased height also provides the driver with a larger sleeping berth and activity space; the setting of the observation window can increase the light transmission of the cab, providing the driver with a more comfortable driving environment. When the driver is resting in the sleeping berth, he can also directly understand the external environment through the observation windows on both sides. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the top cover of this utility model;
[0019] Figure 2 This is a schematic diagram of the installation structure of the reinforcing strip of this utility model;
[0020] Figure 3 This is a schematic diagram of the outer structure of the observation window of this utility model;
[0021] Figure 4 This is a schematic diagram of the inner side of the observation window of this utility model;
[0022] Figure 5 This is a schematic diagram of the installation structure of the inner and outer glass of this utility model.
[0023] The markings in the diagram are as follows: 1. Top cover body; 2. Reinforcing strip; 3. Fastener; 4. Inner glass; 5. Outer glass; 101. Mounting port; 102. Expansion chamber; 103. Observation window; 104. Mounting hole; 105. Glue injection groove; 106. Sealing ring; 301. Screw; 302. Pressure plate; 303. Expansion tube. Detailed Implementation
[0024] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solution of this utility model and should not be construed as limiting the scope of protection of this utility model.
[0025] The terms "top surface," "bottom surface," and "underside surface" refer to the normal operating state of the top cover structure of a heavy truck. They are used only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0026] like Figure 1 and 2 As shown, a top cover structure for a heavy truck includes a top cover body 1 with an open bottom, an expansion chamber 102 inside the top cover body 1, and observation windows 103 on both side walls of the top cover body 1.
[0027] The aforementioned roof structure is suitable for heavy-duty trucks and can increase the height and expand the space of the truck cab. The main body of the roof 1 is located on top of the cab, and the expansion chamber 102 is connected to the truck cab. The roof height and space of the cab are increased by 20-30cm compared to a conventional roof, which greatly increases the effective height and space of the cab, allowing the driver to stand and move around inside the cab, improving the comfort of the driver's daily activities. At the same time, the increased height also provides the driver with a larger sleeping and resting space.
[0028] Secondly, the observation windows 103 on the left and right sides of the main body 1 of the roof can increase the lighting inside the cab, providing a more comfortable driving environment for the driver. When the driver is resting in the berth, he can also observe the situation outside the truck through the observation windows, which improves safety.
[0029] Further improvements include, for example Figure 1 and 2 As shown, the inner side of the observation window 103 is sealed with an inner glass 4, and the outer side of the observation window is sealed with an outer glass 5.
[0030] Specifically, the inner glass 4 is made of plexiglass, and the outer glass 5 is made of silica glass. Plexiglass has a smooth surface and rich colors, and can be made into various colors and transparent or semi-transparent effects. Silica glass has high hardness, wear resistance, corrosion resistance and good weather resistance. By using the combination of the two types of glass, the production cost can be reduced while ensuring the strength and aesthetics of the observation window glass. The combined structure of the inner glass 4 and the outer glass 5 can also ensure the isolation between the cockpit and the external environment, and play a role in thermal insulation of the cockpit.
[0031] Further improvements include, for example Figure 3 and 5 As shown, an adhesive injection groove 105 is provided on the outer side of the observation window 103, and the adhesive injection groove 105 is arranged circumferentially around the observation window 103. The outer glass 5 covers the adhesive injection groove 105. The adhesive injection groove 105 is filled with adhesive, which achieves a sealed assembly of the outer glass 5 on the observation window 103. While ensuring the installation firmness and sealing effect, it does not form excess exposed installation standard parts on the outer surface of the outer glass 5, increasing the visual consistency and neatness of the glass and the top cover, which is not only aesthetically pleasing but also easy to clean. At the same time, it can ensure that the outer surface of the outer glass 5 is flat and flush with the outer surface of the top cover body 1, so as to reduce the wind resistance and wind noise of the truck.
[0032] Further improvements include, for example Figure 4 and 5 As shown, the inner glass 4 is fixedly connected to the top cover body 1 by the fastener 3. Multiple fasteners 3 are arranged circumferentially around the four edges of the inner glass 4. The fastener 3 includes a pressure plate 302 that is detachably connected to the top cover body 1. The pressure plate 302 presses the inner glass 4 onto the observation window 103 from the inside.
[0033] Specifically, the fastener 3 includes a screw 301 and an expansion tube 303. An installation hole 104 is made on the inner wall of the top cover body 1. The expansion tube 303 is inserted into the installation hole 104, and then the screw 301 is screwed into the expansion tube 303. Thus, the pressure plate 302 is fixed to the inner wall of the top cover body 1 by the screw 301. The pressure plate 302 presses the inner glass 4 from the inside, thereby realizing the installation of the inner glass 4 and improving the convenience of assembling the inner glass 4.
[0034] Further improvements include, for example Figure 5 As shown, a sealing ring 106 is provided on the inner side of the observation window 103, and the sealing ring 106 is arranged circumferentially around the observation window 103. The sealing ring 106 is a rubber ring, and the sealing ring 106 is disposed between the inner glass 4 and the top cover body 1 to improve the sealing performance between the inner glass 4 and the observation window 103.
[0035] A further improvement is that a vacuum is created between the inner glass 4 and the outer glass 5. This vacuum creates negative pressure, which adheres both the inner glass 4 and the outer glass 5 to the observation window 103, improving the stability and sealing of the installation. Furthermore, the vacuum reduces heat conduction and sound propagation, effectively enhancing the heat and sound insulation of the observation window 103 and further improving the comfort of the truck cab.
[0036] A further improvement is that at least one of the inner glass 4 and the outer glass 5 is a one-way viewing glass. Specifically, the inner glass 4 is a one-way viewing glass, which allows the driver to observe the outside of the vehicle from inside, but the outside cannot observe the inside, thus effectively ensuring the privacy and security of the driver's cab. Furthermore, one-way viewing glass usually requires coating or film to achieve the one-way viewing effect. Therefore, setting only the inner glass 4 as a one-way viewing glass can reduce costs while protecting privacy. Moreover, the inner glass 4 is located inside the driver's cab, which can protect the coating and slow down its wear rate, thereby maintaining the stability of the glass performance.
[0037] Further improvements include, for example Figure 1 and 2 As shown, the top surface of the main body 1 of the roof has a mounting opening 101. The mounting opening 101 can be used to install accessories such as air conditioners or sunroofs to further improve the comfort of the vehicle.
[0038] Further improvements include, for example Figure 1 and 2 As shown, a reinforcing strip 2 is fixedly connected to the inner top wall of the top cover body 1. The reinforcing strip 2 is distributed around the mounting opening 101 to form a grid structure. The reinforcing strip 2 is a one-piece stamped part. It is set on the top of the top cover body 1, which can improve the strength of the top cover body 1, thereby improving the safety of the vehicle. At the same time, it can also strengthen the area around the mounting opening 101 and improve the strength of the mounting opening 101.
[0039] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.
Claims
1. A top cover structure of a heavy truck, characterized in that: a top cover body (1) is provided with an extended chamber (102) on the inner side, and an observation window (103) is arranged on the side wall of the top cover body (1).
2. The roof structure of a heavy duty truck according to claim 1, characterized in that, An inner side glass (4) is sealingly arranged on the inner side of the observation window (103), and an outer side glass (5) is sealingly arranged on the outer side of the observation window.
3. The roof structure of a heavy duty truck according to claim 2, characterized in that, An injection groove (105) is arranged on the outer side of the observation window (103), and the outer side glass (5) covers the injection groove (105).
4. The roof structure of a heavy duty truck according to claim 2, characterized in that, The inner side glass (4) is fixedly connected to the top cover body (1) by a fixing member (3), and a plurality of fixing members (3) are circumferentially arranged around the four edges of the inner side glass (4).
5. The roof structure of a heavy duty truck according to claim 4, characterized in that, The fixing member (3) comprises a pressing plate (302) detachably connected to the top cover body (1), and the pressing plate (302) presses the inner side glass (4) against the observation window (103) from the inner side.
6. The roof structure of a heavy duty truck according to claim 5, characterized in that A sealing ring (106) is arranged on the inner side of the observation window (103), and the sealing ring (106) is circumferentially arranged around the observation window (103).
7. The roof structure of a heavy duty truck according to claim 2, characterized in that, The inner side glass (4) and the outer side glass (5) are in a vacuum state.
8. The roof structure of a heavy duty truck according to claim 2, characterized in that, At least one of the inner side glass (4) and the outer side glass (5) is a one-way visible glass.
9. The roof structure of a heavy duty truck according to claim 1, characterized in that, A mounting port (101) is arranged on the top surface of the top cover body (1).
10. The roof structure of a heavy duty truck according to claim 9, characterized in that, A reinforcing strip (2) is fixedly connected to the inner wall of the top of the top cover body (1), and the reinforcing strip (2) is distributed around the mounting port (101) to form a cross-shaped structure.