Tractor cab top cover sealing structure, cab and tractor

Abstract

The utility model relates to the field of tractors, in particular to a tractor cab top cover sealing structure which comprises a cab framework, an upper frame arranged on the upper portion of the cab framework, a top cover installed on the upper portion of the upper frame, a top frame installed on the lower portion of the top cover and matched with the upper frame in shape and size, and a sealing gasket installed on the upper portion of the upper frame. The top frame is pressed against the upper part of the sealing gasket, the sealing gasket is made of sponge, and the shape and the size of the sealing gasket are matched with those of the upper frame and the top frame. According to the tractor cab top cover sealing structure, the cab and the tractor, the sealing gasket can fill microscopic unevenness, ensure the assembly precision, reduce gaps and block rainwater and dust permeation, so that the overall performance of the cab is improved, the failure rate caused by rainwater or dust invasion is reduced, and the reliability of the tractor is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to tractor field, concretely relates to a tractor cab roof seal structure and cab and tractor. BACKGROUND

[0002] In the field of agricultural machinery, tractors are commonly used work equipment, and the sealing performance of their cabs directly affects the operating comfort of the driver and the service life of the equipment. As an important part of the cab, the cab roof is exposed to the external environment for a long time and faces challenges such as rain, dust, vibration, and temperature changes. If the sealing structure is not designed reasonably, it is easy to cause problems such as rain leakage, dust intrusion, and noise increase, which in turn affects the overall performance and use experience of the cab.

[0003] Traditional tractor cab roof sealing structures usually use simple rubber sealing strips or hard gaskets for sealing, which has the following technical defects: the cab sealing performance is poor, the roof is difficult to adapt to the pressure deformation of the roof or the micro-unevenness of the frame, gaps are easily formed, leading to the penetration of rain and dust; when the roof is pressed or impacted, the sealing structure may fail due to frame deformation, especially in harsh working environments, which needs to be improved. SUMMARY

[0004] The utility model aims at the above -mentioned problem provides a kind of tractor cab roof sealing structure and cab and tractor that can adapt to the pressure deformation of roof, reduce gap, block rain and dust penetration.

[0005] To achieve the above purpose, the utility model discloses a tractor cab roof sealing structure, which comprises a cab skeleton, an upper frame is arranged on the upper part of the cab skeleton, and a roof is installed on the upper part of the upper frame. The structure is characterized in that: a top frame is installed on the lower part of the roof, the shape and size of the top frame match those of the upper frame, a sealing gasket is installed on the upper part of the upper frame, and the top frame is pressed against the upper part of the sealing gasket.

[0006] The sealing gasket is installed on the upper part of the upper frame, and the top frame is pressed against the upper part of the sealing gasket. The sealing gasket can provide elastic compression and rebound performance, thereby adapting to the pressure deformation of the roof, filling the micro-unevenness, ensuring the assembly precision, reducing the gap, absorbing the shock and reducing the noise, and blocking the penetration of rain and dust to avoid local deformation.

[0007] The material of the sealing gasket is sponge, which provides elastic compression and rebound performance, can adapt to the pressure deformation of the roof, fill the micro-unevenness, absorb the shock and reduce the noise, and block the penetration of rain and dust.

[0008] The shape and size of the sealing gasket match those of the upper frame and the top frame. The sealing gasket is completely matched with the frame contour, which can eliminate the sealing blind area and prevent leakage caused by size deviation.

[0009] The sealing gasket is bonded to the upper frame. Bonding fixation achieves seamless fitting, easy installation, no need for additional fasteners, and avoids displacement or falling off.

[0010] The outer side of the upper frame is provided with a cover plate, which is upwardly raised to form a groove for placing the sealing gasket. The groove structure not only can accurately position the sealing gasket to prevent assembly misalignment, but also can enhance the rigidity of the cover plate to resist deformation under the pressure of the top cover.

[0011] The top cover is matched in shape and size with the cover plate, and is pressed against the cover plate. The top cover and the cover plate form a secondary seal, and when facing rainy weather, the rain will first fall on the top cover and slide along the top cover to the ground, thereby avoiding direct contact of the rain with the sealing gasket and preventing the sealing gasket from failing.

[0012] An outer bushing is installed in the inside of the upper frame, and an inner bushing is installed in the inside of the top frame and is inserted into the outer bushing. The insertion fit of the inner bushing and the outer bushing not only facilitates the installation of the top cover and improves the assembly stability of the top cover and the cab, but also reduces the relative displacement caused by vibration.

[0013] A fixing seat is installed on the cab skeleton, a support sleeve is provided on the outer bushing, the support sleeve is sleeved on the fixing seat, and a bolt is installed on the top cover and passes through the top cover and the support sleeve and is tightened on the fixing seat. For the upper frame in the shape of a square frame, four fixing seats are installed, and the four fixing seats are respectively located at the four corner edges of the upper frame. The support sleeve helps to disperse the bolt pretightening force and prevent the frame from deforming.

[0014] A cab includes a tractor cab top cover sealing structure. The cab with the sealing structure has the advantages of improving the overall sealing performance of the cab and improving the driving and riding environment.

[0015] A tractor includes a cab, and the sealing structure prolongs the service life of the cab, reduces the failure rate caused by the invasion of rain or dust, and improves the reliability of the tractor.

[0016] In summary, the sealing gasket is installed between the upper frame and the top frame, and the sealing gasket can provide elastic compression and rebound performance, thereby adapting to the pressure deformation of the top cover, filling the micro-unevenness, ensuring the assembly accuracy, reducing the gap, not only absorbing shock and reducing noise, but also blocking the penetration of rain and dust, avoiding local deformation, and providing excellent sealing performance, shock absorption and durability while ensuring assembly accuracy, thereby improving the overall performance of the cab. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a structural schematic view of the upper frame, the outer bushing and the cover plate;

[0018] Figure 2 It is a structural schematic view of the inner bushing, the top cover and the top frame;

[0019] Figure 3 Structure diagram of sealing gasket;

[0020] Figure 4 Structure diagram of installation of upper frame on cab skeleton;

[0021] Figure 5 Structure diagram of tractor cab.

[0022] In the figure: upper frame 1, outer bush 2, cover plate 3, inner bush 4, cab skeleton 5, roof 6, top frame 7, sealing gasket 8, fixing seat 9, supporting sleeve 10. DETAILED DESCRIPTION

[0023] The specific embodiments of the present application will be further described in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present application, but not to limit the scope of the present application.

[0024] In the description of the present application, it should be understood that the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0025] The terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0026] In the description of the present application, it should be noted that unless otherwise specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication between the two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0027] The following is a description of the preferred embodiments of the present application in conjunction with the accompanying drawings.

[0028] A tractor cab roof sealing structure, comprising a cab skeleton 5, an upper frame 1 provided on the upper part of the cab skeleton 5, and a roof 6 installed on the upper part of the upper frame 1, characterized in that: a top frame 7 is installed on the lower part of the roof 6, the shape and size of the top frame 7 match those of the upper frame 1, a sealing gasket 8 is installed on the upper part of the upper frame 1, and the top frame 7 is pressed against the upper part of the sealing gasket 8. Figure 1 The sealing gasket 8 is installed on the upper part of the upper frame 1, and the top frame 7 is pressed against the upper part of the sealing gasket 8. The sealing gasket 8 can provide elastic compression and rebound performance, thereby adapting to the pressure deformation of the roof 6, filling micro irregularities, ensuring assembly accuracy, reducing gaps, not only absorbing shock and reducing noise, but also preventing rainwater and dust penetration, and avoiding local deformation.

[0029] Referring to the accompanying drawings Figure 3 The material of the sealing gasket 8 is sponge, which provides elastic compression and rebound performance, can adapt to the pressure deformation of the roof 6, fill micro irregularities, not only can absorb shock and reduce noise, but also can prevent rainwater and dust penetration. The shape and size of the sealing gasket 8 match those of the upper frame 1 and the top frame 7. The sealing gasket 8 is completely attached to the frame contour, which can eliminate the sealing blind area and prevent leakage caused by size deviation. The sealing gasket 8 is bonded to the upper side of the upper frame 1. Bonding and fixing realize seamless attachment, easy installation, no need for additional fasteners, and avoid displacement or falling off.

[0030] Referring to the accompanying drawings Figure 1 The outer side of the upper frame 1 is provided with a cover plate 3, which is upwardly raised to form a groove for placing the sealing gasket 8. The groove structure not only can accurately position the sealing gasket 8 to prevent assembly misplacement, but also can enhance the rigidity of the cover plate 3 to resist the pressure deformation of the roof 6. Referring to the accompanying drawings Figure 2 The shape and size of the roof 6 match those of the cover plate 3, and the roof 6 is pressed against the cover plate 3. The roof 6 and the cover plate 3 form a secondary seal. When facing rainy weather, rainwater will first fall on the roof 6 and slide along the roof 6 to the ground, thereby avoiding direct contact of rainwater with the sealing gasket 8 and preventing the sealing gasket 8 from failing. An outer bushing 2 is installed inside the upper frame 1, an inner bushing 4 is installed inside the top frame 7, and the inner bushing 4 is inserted into the outer bushing 2. The insertion fit of the inner bushing 4 and the outer bushing 2 not only facilitates the installation of the roof 6 and improves the assembly stability of the roof 6 and the cab, but also reduces the relative displacement caused by vibration.

[0031] Referring to the accompanying drawings Figure 4 A fixing seat 9 is installed on the cab skeleton 5, a support sleeve 10 is provided on the outer bushing 2, the support sleeve 10 is sleeved on the fixing seat 9, and a bolt is installed on the roof 6, which penetrates the roof 6 and the support sleeve 10 and is tightened on the fixing seat 9. For the square frame-shaped upper frame 1, four fixing seats 9 are installed, and the four fixing seats 9 are respectively located at the four corners of the upper frame 1. The support sleeve 10 helps to disperse the bolt pre-tightening force and prevent the frame from deforming.

[0032] A cab includes a tractor cab top cover 6 sealing structure. With the advantages of the sealing structure, the overall sealing of the cab is improved, and the driving environment is improved.

[0033] A tractor includes a cab, and the sealing structure prolongs the service life of the cab, reduces the failure rate caused by the invasion of rain or dust, and improves the reliability of the tractor.

[0034] The above only describes the preferred embodiments of the present application, and it should be pointed out that for ordinary skilled in the art, without departing from the technical principles of the present application, a number of improvements and substitutions can be made, and these improvements and substitutions should also be considered as the protection scope of the present application.

Claims

1. A sealing structure for a tractor cab top cover, comprising a cab frame (5), wherein an upper frame (1) is provided on the upper part of the cab frame (5), and a top cover (6) is installed on the upper part of the upper frame (1), characterized in that, The top cover (6) is equipped with a top frame (7) at the bottom. The shape and size of the top frame (7) match the upper frame (1). A sealing gasket (8) is installed on the upper part of the upper frame (1). The top frame (7) presses against the upper part of the sealing gasket (8).

2. The tractor cab top cover sealing structure as described in claim 1, characterized in that, The sealing gasket (8) is made of sponge.

3. The tractor cab top cover sealing structure as described in claim 1, characterized in that, The shape and size of the sealing gasket (8) are matched with the upper frame (1) and the top frame (7).

4. The tractor cab top cover sealing structure as described in claim 1, characterized in that, The sealing gasket (8) is bonded to the upper side of the upper frame (1).

5. The tractor cab top cover sealing structure as described in claim 1, characterized in that, The upper frame (1) is provided with a cover plate (3) on the outside, and the cover plate (3) is raised upward to form a groove for placing the sealing gasket (8).

6. The tractor cab top cover sealing structure as described in claim 5, characterized in that, The top cover (6) is shaped and sized to match the cover plate (3), and the top cover (6) presses against the cover plate (3).

7. The tractor cab top cover sealing structure as described in claim 1, characterized in that, The upper frame (1) is fitted with an outer bushing (2), and the top frame (7) is fitted with an inner bushing (4). The inner bushing (4) is inserted into the outer bushing (2).

8. The tractor cab top cover sealing structure as described in claim 7, characterized in that, A fixed seat (9) is installed on the cab frame (5), and a support sleeve (10) is provided on the outer bushing (2). The support sleeve (10) is fitted on the fixed seat (9), and a bolt is installed on the top cover (6) that passes through the top cover (6) and the support sleeve (10) and is tightened on the fixed seat (9).

9. A driver's cab, characterized in that, The tractor cab top cover sealing structure includes any one of claims 1 to 8.

10. A tractor, characterized in that, Includes the driver's cab as described in claim 9.

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