Ceiling structure and tractor

Abstract

The utility model provides a ceiling structure and a tractor. Comprising a lower top plate and an upper top plate, the middle of the lower top plate is hollow, and a first through hole and a second through hole are formed in the lower top plate; the upper top plate is arranged above the lower top plate and covers the lower top plate, a first mounting part and a second mounting part are arranged on the upper top plate, the first mounting part is matched with the first through hole, and the second mounting part is matched with the second through hole to fixedly connect the upper top plate with the lower top plate; a first sealing assembly, a second sealing assembly and a third sealing assembly are sequentially arranged between the upper top plate and the lower top plate from the outer ring to the inner ring of the lower top plate. By means of the three-layer sealing structure, rainwater and dust can be effectively prevented from invading the cab, it is ensured that the cab still keeps good sealing performance in the complex environment, the cleanliness and comfort of the interior of the cab are improved, and meanwhile noise introduction is effectively reduced.

Description

Technical Field

[0001] This utility model relates to the field of agricultural machinery, and in particular to a canopy structure and a tractor. Background Technology

[0002] In existing technologies, tractor canopies need to have excellent weather resistance and a certain degree of impact resistance. Existing tractor canopies generally use sheet metal parts, injection molded parts, or a combination of sheet metal parts and injection molded parts. However, sheet metal parts are relatively heavy, and the cost of welding and painting after stamping is high. Although injection molded parts are low in cost and light in weight, the material properties make it difficult to meet the assembly precision requirements of the canopy. Gaps exist near the canopy joints, making it difficult to meet the sealing requirements of the cab. This leads to dust entering the cab, water leakage, and high noise levels.

[0003] Therefore, it is necessary to provide a canopy structure and a tractor to overcome the defects mentioned above. Utility Model Content

[0004] The purpose of this utility model is to provide a canopy structure and a tractor.

[0005] According to one aspect of the present invention, a ceiling structure is provided, comprising: a lower ceiling plate, the lower ceiling plate having a hollow center, and a first through hole and a second through hole provided in the lower ceiling plate;

[0006] An upper top plate is disposed above and covers the lower top plate. The sides of the upper top plate overlap with those of the lower top plate. The upper top plate is provided with a first mounting part and a second mounting part. The first mounting part cooperates with the first through hole, and the second mounting part cooperates with the second through hole to fix the upper top plate and the lower top plate together.

[0007] A first sealing assembly, the first sealing assembly including a first sealing element disposed circumferentially along the outer ring of the lower top plate and abutting against the upper top plate;

[0008] The second sealing assembly includes a fourth mounting portion arranged circumferentially along the upper surface of the lower top plate, a second sealing member disposed on the fourth mounting portion and in contact with the lower surface of the upper top plate, and a first groove portion disposed on the lower surface of the upper top plate and corresponding to the second sealing member.

[0009] Preferably, a third sealing assembly is provided between the upper top plate and the lower top plate. The third sealing assembly includes a fifth mounting portion disposed along the upper surface of the lower top plate near the inner circumference, a third sealing element disposed within the fifth mounting portion and partially protruding from the fifth mounting portion and fitting against the lower surface of the upper top plate, and a second groove portion disposed on the lower surface of the upper top plate and corresponding to the third sealing element.

[0010] Preferably, both the lower top plate and the upper top plate are injection molded parts.

[0011] Preferably, the first through hole is located in the inner ring of the lower top plate, and the first mounting part is a riveting member provided on the upper top plate and extending downward, the riveting member passing through the corresponding first through hole;

[0012] The second through hole is located on the outer ring of the lower top plate, and the second mounting part includes a non-through hole on the upper top plate and a first connecting member passing through the second through hole and the non-through hole.

[0013] Preferably, the lower surface of the lower top plate is provided with a ceiling fixing groove, a frame beam is provided in the ceiling fixing groove, a full ring plate is provided on the upper surface of the frame beam, and a third mounting part is staggered on the inner and outer rings of the full ring plate. The third mounting part protrudes outward relative to the frame beam, and a second connecting member is provided between the third mounting part and the lower top plate.

[0014] Preferably, a fourth sealing element is provided between the full-circle plate and the lower top plate.

[0015] Preferably, an inner top plate is installed on the lower surface of the frame beam, and the inner top plate is a composite layer structure obtained by molding glass fiber felt reinforced thermoplastic composite material and waterproof knitted fabric.

[0016] Preferably, the upper surface of the top plate has a raised shape in the middle, and a water channel is provided on the upper surface of the top plate. The water channel extends to a drain outlet located at the outer edge of the top plate, and the drain outlet is located at the rear end of the tractor door.

[0017] Preferably, the lower surface of the upper top plate is provided with a grid-like reinforcing rib.

[0018] According to another aspect of the present invention, a tractor is provided, including the aforementioned canopy structure.

[0019] Compared with existing technologies, the canopy structure and tractor provided by this utility model have the following beneficial effects: This utility model provides a first sealing component, a second sealing component, and a third sealing component sequentially from the outer ring to the inner ring of the lower canopy between the upper and lower canopies. This three-layer sealing structure effectively prevents rainwater and dust from entering the cab, ensuring good sealing performance even in complex environments, improving the cleanliness and comfort inside the cab, and effectively reducing noise transmission. Attached Figure Description

[0020] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0021] Figure 1 This is a schematic diagram of the roof structure in this utility model.

[0022] Figure 2 This is a cross-sectional schematic diagram of the roof structure in this utility model.

[0023] Figure 3 This is an exploded view of the roof structure in this utility model.

[0024] Figure 4 The first sealing component, the second sealing component, and the third sealing component of the ceiling structure in this utility model (i.e. Figure 2 A magnified view of a portion of region A in the middle.

[0025] Figure 5 This is an exploded view of the ceiling structure (hidden inner ceiling plate) in this utility model.

[0026] Figure 6 This is a bottom view of the ceiling structure (hidden inner ceiling plate) in this utility model.

[0027] Explanation of reference numerals in the attached drawings: 1. Lower top plate; 11. First through hole; 111. Elastic ring; 12. Second through hole; 13. First bent part; 2. Upper top plate; 21. First mounting part; 211. Riveting part; 211a. Base; 211b. Limiting part; 22. Second mounting part; 221. Non-through hole; 222. First connecting part; 23. Ceiling fixing groove; 24. Arc-shaped structure; 25. Drainage channel; 251. Drain outlet; 26. 27. Second bending section; 28. First groove section; 29. ​​Second groove section; 30. Reinforcing rib; 31. Frame beam; 31. Full ring plate; 311. Pad structure; 32. Third mounting section; 33. Fourth seal; 4. Inner top plate; 5. First sealing assembly; 51. First seal; 6. Second sealing assembly; 61. Fourth mounting section; 62. Second seal; 7. Third sealing assembly; 71. Fifth mounting section; 72. Third seal. Detailed Implementation

[0028] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] To keep the drawings concise, only the parts relevant to this invention are shown schematically in each figure, and they do not represent the actual structure of the product. Furthermore, for ease of understanding, in some figures, only one of the components with the same structure or function is schematically depicted, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one."

[0030] It should also be further understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0031] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0032] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0033] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the specific implementation methods of this utility model will be described below with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of this utility model. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without any creative effort.

[0034] See appendix Figures 1 to 6 This embodiment discloses a canopy structure for a tractor, which includes a lower canopy 1, an upper canopy 2, and an inner canopy 4. Both the lower canopy 1 and the upper canopy 2 are injection molded parts. When selecting the material for the upper canopy 2, it is necessary to maintain rigidity while also considering the material's toughness, low-temperature resistance, dimensional stability, and low shrinkage.

[0035] See appendix Figure 2 , 4The lower surface of the lower roof plate 1 is provided with a roof fixing groove 23, and a frame beam 3 is provided in the roof fixing groove 23 to fix the lower roof plate 1 on the frame beam 3. The lower roof plate 1 is hollow in the middle and has a first through hole 11 and a second through hole 12. The upper roof plate 2 is located above the lower roof plate 1 and covers the lower roof plate 1. The upper roof plate 2 has a first mounting part 21 and a second mounting part 22. The first mounting part 21 cooperates with the first through hole 11 and the second mounting part 22 cooperates with the second through hole 12 to fix the upper roof plate 2 and the lower roof plate 1, thereby fixing the roof structure and the cab.

[0036] See appendix Figure 4 , 6 The first through hole 11 is located in the inner ring of the lower top plate 1. The first mounting part 21 is a riveting member 211 that is provided on the upper top plate 2 and extends downward. The riveting member 211 passes through the corresponding first through hole 11 to fix the inner ring of the upper top plate 2 and the lower top plate 1. The riveting member 211 is integrally formed with the upper top plate 2. The riveting member 211 includes a base 211a and a limiting member 211b provided on the base 211a with an outer diameter larger than the inner diameter of the first through hole 11. An elastic ring 111 with a certain deformation capacity is sleeved inside the first through hole 11. During the installation process, the riveting member 211 is locked in the first through hole 11 by external force. The limiting part can play a good role in preventing it from falling off.

[0037] See appendix Figure 4 , 6 The second through hole 12 is located on the outer ring of the lower top plate 1. The second mounting part 22 includes a mounting post located on the upper top plate 2 and protruding from the lower surface of the upper top plate 2, a non-penetrating hole 221 located on the mounting post, and a first connecting member 222 passing through the second through hole 12 and the non-penetrating hole 221. The first connecting member 222 passes through the second through hole 12 and the non-penetrating hole 221 in sequence to fix the upper top plate 2 and the lower top plate 1. Moreover, there are no through holes in the entire upper top plate 2, which ensures the waterproof performance of the entire ceiling structure.

[0038] See appendix Figure 4 The outer ring of the lower top plate 1 is bent downward to form a first bend 13, and the outer ring of the upper top plate 2 is bent downward to form a second bend 26. A first sealing assembly 5 is provided between the first bend 13 and the second bend 26. That is, the first sealing assembly 5 includes a first sealing member 51 that is circumferentially arranged along the outer edge of the first bend 13 and fits against the inner edge of the second bend 26.

[0039] See appendix Figure 4 A second sealing assembly 6 is provided between the upper top plate 2 and the lower top plate 1. The second sealing assembly 6 includes a fourth mounting part 61 provided along the upper surface of the lower top plate 1, a second sealing member 62 provided on the fourth mounting part 61 and in contact with the lower surface of the upper top plate 2, and a first groove part 27 provided on the lower surface of the upper top plate 2 and corresponding to the second sealing member 62.

[0040] See appendix Figure 4 A third sealing assembly 7 is provided between the upper top plate 2 and the lower top plate 1. The third sealing assembly 7 includes a fifth mounting part 71 provided on the upper surface of the lower top plate 1, a third sealing member 72 provided in the fifth mounting part 71 and partially protruding from the fifth mounting part 71 and fitting with the lower surface of the upper top plate 2, and a second groove part 28 provided on the lower surface of the upper top plate 2 and corresponding to the third sealing member 72.

[0041] See appendix Figures 4 to 6 A ring plate 31 is provided on the upper surface of the frame beam 3. A third mounting part 32 is provided alternately on the inner and outer rings of the ring plate 31. The third mounting part 32 protrudes outward relative to the frame beam 3. A second connecting member is provided between the third mounting part 32 and the lower top plate 1.

[0042] See appendix Figure 5 The ring plate 31 is formed by several segments of pad structure 311, and the pad structures 311 have interlocking grooves and protrusions to achieve positioning and installation between the pads, thereby ensuring the accuracy of the position of the entire ring plate 31 and the third mounting part 32, and improving the installation accuracy of the ceiling structure. In addition, a fourth sealing element 33 is provided between the ring plate 31 and the lower top plate 1 to further ensure the sealing performance of the ceiling structure.

[0043] See appendix Figure 2 , 3 An inner top plate 4 is installed on the lower surface of the frame beam 3. The inner top plate 4 is a composite layer structure made of GMT (glass fiber reinforced thermoplastic composite) and waterproof knitted fabric through molding. The inner top plate 4 uses waterproof knitted fabric as the inner surface layer, which can enhance the aesthetics and waterproof performance of the interior. Functional structures such as air conditioning vents, lighting, ambient lighting, internal circulation filter, and speakers are set on the inner top plate 4. It can be understood that the inner top plate 4 and the lower top plate 1 are spaced at a predetermined distance to form an installation space. The air conditioning unit, air conditioning ducts, and related power supply lines are installed in the installation space to improve the comfort of the tractor cab.

[0044] See appendix Figure 3 The upper surface of the top cover 2 has a raised section in the middle, preferably an arc-shaped structure 24. A water channel 25 is provided on the upper surface of the top cover 2, extending to a drain outlet 251 located at the rear end of the tractor door. The raised section on the surface of the top cover 2 enhances the strength of the roof and guides rainwater in a specific direction, directing it to the front and rear drain outlets 251. The drain outlets 251 guide the rainwater to the rear end of the tractor door, preventing rainwater from dripping onto the driver when the door is opened.

[0045] See appendix Figure 6The lower surface of the upper top plate 2 is provided with grid-like reinforcing ribs 29, and the upper surface of the upper top plate 2 is also provided with reinforcing ribs 29 to improve the structural strength of the roof structure.

[0046] From the outer ring to the inner ring of the lower top plate 1, a first sealing component 5, a second sealing component 6, and a third sealing component 7 are arranged sequentially. The three-layer sealing structure can effectively prevent rainwater and dust from entering the cab, ensuring that the cab maintains good sealing performance in complex environments, improving the cleanliness and comfort inside the cab, and effectively reducing noise transmission.

[0047] It will be apparent to those skilled in the art that various modifications and variations can be made to the exemplary embodiments of the present invention without departing from the spirit and scope of the present invention. Therefore, it is intended that the present invention cover modifications and variations falling within the scope of the appended claims and their equivalents.

Claims

1. A tractor canopy structure, characterised in that, The utility model relates to a tractor roof structure, comprising: a lower roof plate, the lower roof plate is hollow in the middle, a first through hole and a second through hole are arranged on the lower roof plate; an upper roof plate, the upper roof plate is arranged above the lower roof plate and covers the lower roof plate, the upper roof plate overlaps with the side surface of the lower roof plate, a first mounting part and a second mounting part are arranged on the upper roof plate, the first mounting part is matched with the first through hole, the second mounting part is matched with the second through hole, and the upper roof plate is fixedly connected with the lower roof plate; a first sealing assembly, the first sealing assembly comprises a first sealing member which is arranged in a circumferential direction along the outer circle of the lower roof plate and is attached to the upper roof plate; a second sealing assembly, the second sealing assembly comprises a fourth mounting part which is arranged in a circumferential direction along the upper surface of the lower roof plate, a second sealing member which is arranged on the fourth mounting part and is attached to the lower surface of the upper roof plate, and a first groove part which is arranged on the lower surface of the upper roof plate and corresponds to the second sealing member.

2. The tractor canopy structure of claim 1, wherein, a third sealing assembly is arranged between the upper roof plate and the lower roof plate, the third sealing assembly comprises a fifth mounting part which is arranged in a circumferential direction along the upper surface of the lower roof plate and is close to the inner circle, a third sealing member which is arranged in the fifth mounting part and partially protrudes from the fifth mounting part and is attached to the lower surface of the upper roof plate, and a second groove part which is arranged on the lower surface of the upper roof plate and corresponds to the third sealing member.

3. The tractor canopy structure of claim 1, wherein, The lower roof plate and the upper roof plate are both injection molded parts.

4. The tractor canopy structure of claim 1, wherein, The first through hole is arranged on the inner circle of the lower roof plate, the first mounting part is a rivet which is arranged on the upper roof plate and extends downward, and the rivet passes through the corresponding first through hole. The second through hole is arranged on the outer circle of the lower roof plate, the second mounting part comprises a non-through hole which is arranged on the upper roof plate and a first connecting piece which passes through the second through hole and the non-through hole.

5. The tractor canopy structure of claim 1, wherein, A ceiling fixing groove is arranged on the lower surface of the lower roof plate, a frame beam is arranged in the ceiling fixing groove, a whole-circle plate is arranged on the upper surface of the frame beam, third mounting parts are arranged on the inner circle and the outer circle of the whole-circle plate in a staggered manner, the third mounting parts protrude outward relative to the frame beam, and a second connecting piece is arranged between the third mounting parts and the lower roof plate.

6. The tractor canopy structure of claim 5, wherein, A fourth sealing member is arranged between the whole-circle plate and the lower roof plate.

7. The tractor canopy structure of claim 5, wherein, An inner roof plate is arranged on the lower surface of the frame beam, the inner roof plate adopts a composite layer structure which is obtained by pressing a glass fiber felt reinforced thermoplastic composite material and a waterproof knitted fabric.

8. The tractor canopy structure of claim 1, wherein, The middle position of the upper surface of the upper roof plate is in a convex shape, a water flow groove is arranged on the upper surface of the upper roof plate, the water flow groove extends to a drain port which is located on the outer edge of the upper roof plate, and the drain port is located at the rear end of the door of the tractor.

9. The tractor canopy structure of claim 1, wherein, A grid-shaped reinforcing rib is arranged on the lower surface of the upper roof plate.

10. A tractor characterised in that, The utility model relates to a tractor roof structure, comprising: any one of claims 1 to 9.

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