Cab sealing structure

Abstract

The utility model relates to the technical field of engineering machinery vehicle cabs, in particular to a cab sealing structure which comprises a bottom plate frame, a limiting groove is formed in the upper end face of the bottom plate frame in a fixed structure mode, a push plate is arranged in the limiting groove, the upper end face of the push plate is attached to the lower end face of a sealing strip, and the upper end face of the sealing strip is attached to a cab. The bottom plate frame is provided with a sleeve in a fixed structure mode, the sleeve penetrates through the bottom plate frame and the limiting groove to be attached to the lower end face of the push plate, the bolt is connected with the sleeve in a meshed mode through threads, the tail of the bolt penetrates through the sleeve to be attached to the lower end face of the push plate, a locking nut is arranged between a cap body of the bolt and the sleeve, and a gasket is arranged between the sleeve and the locking nut. The sealing strip is tightly pressed under the cab by adjusting the bolts, and no gap is reserved. In this way, the sound insulation effect can be guaranteed, rainwater, dust and other sundries can be prevented from entering the cockpit, and the good environment in the cockpit is guaranteed.

Description

Technical field:

[0001] The present application relates to the technical field of engineering machinery vehicle cabs, and in particular to a cab sealing structure. Background technology:

[0002] Chinese national invention patent with patent application number 202410065855.6 - a cab sealing structure, comprising: a door frame; a door assembly hinged to the door frame; a side panel outer panel, the side panel outer panel is connected to the door frame to form a first connection portion, a flange edge is provided at the first connection portion; and a first sealing strip, which is clamped to the flange edge, and the first sealing strip blocks the gap between the door assembly and the side panel outer panel when the door assembly is closed.

[0003] However, errors occurred during the processing and welding of the cockpit and the floor frame, resulting in the gap between the cockpit and the floor frame being different in size and tilted, which ultimately caused the filled sealing strip to be squeezed too tight in part of the length, and there was a gap in the other part of the length without squeezing. This not only weakened the sound insulation effect, but also allowed rainwater, dust and other debris to enter the cockpit through the gap, causing the items in the cabin to be soaked by rainwater or air pollution, causing certain damage to the items in the cabin and the human body. Utility model content:

[0004] In order to solve the above technical problems, the utility model provides a cab sealing structure, which solves the technical problem that there is an unfilled gap after the sealing strip is filled due to the inconsistent spacing between the cab and the bottom frame. In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0005] A cab sealing structure comprises a cab, a bottom frame and a sealing structure, wherein the sealing structure comprises:

[0006] Sealing strip, which is located between the cockpit and the floor frame;

[0007] A push plate, which is located at the lower end surface of the sealing strip;

[0008] A limiting groove, the limiting groove is connected to the bottom plate frame in a fixed structure, and the sealing strip and the push plate are both located in the limiting groove;

[0009] The bolt, one end of which passes through the bottom plate frame and the limiting groove and fits with the lower surface of the push plate, and the bolt is connected to the bottom plate frame and / or the limiting groove in an engaging manner through threads.

[0010] Furthermore, the cockpit adopts a frame structure surrounded by square tubes.

[0011] Furthermore, the base frame is provided with a sleeve in a fixed structure manner, and the sleeve is engaged with the bolt through a thread.

[0012] Furthermore, a locking nut is arranged below the sleeve, and the locking nut is threadably engaged with the bolt.

[0013] Furthermore, a washer is arranged between the locking nut and the sleeve.

[0014] Furthermore, the limiting groove is a U-shaped groove structure.

[0015] Furthermore, the sealing strip is made of rubber, and the side surface of the sealing strip is interference-fitted with the inner surface of the limiting groove.

[0016] The utility model has the beneficial effect that the sealing strip is pressed tightly under the cockpit by adjusting the bolts without leaving any gaps, which can ensure the sound insulation effect and prevent rain, dust and other debris from entering the cockpit, thus ensuring a good environment in the cockpit. Description of the drawings:

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0018] Figure 2 It is a partial cross-sectional schematic diagram of the utility model.

[0019] In the figure:

[0020] 1. Cockpit, 2. Sealing strip, 3. Push plate, 4. Limiting groove, 5. Bottom plate frame, 6. Sleeve, 7. Bolt, 8. Lock nut, 9. Washer. Specific implementation method:

[0021] In order to make the purpose, technical scheme and advantages of the implementation of the utility model clearer, the utility model will now be further described in detail with reference to the accompanying drawings and the following examples so that the public can better understand the implementation method of the utility model. The specific implementation scheme of the utility model is as follows:

[0022] A cab sealing structure comprises a base frame 5, wherein the upper end surface of the base frame 5 is provided with a limiting groove 4 in a fixed structure manner, a push plate 3 is provided in the limiting groove 4, the upper end surface of the push plate 3 is fitted with the lower end surface of the sealing strip 2, and the push plate 3 disperses the upward thrust provided by the bolt 7 to the entire plate to prevent the sealing strip 2 from being damaged due to uneven force; the upper end surface of the sealing strip 2 is fitted with the cab 1; the base frame 5 is provided with a sleeve 6 in a fixed structure manner, the sleeve 6 passes through the base frame 5 and the limiting groove 4 and is fitted with the lower end surface of the push plate 3, the bolt 7 is connected to the sleeve 6 in an engaged manner through a thread, and one end of the bolt passes through the sleeve 6 and is fitted with the lower end surface of the push plate 3, a locking nut 8 is provided between the cap body of the bolt and the sleeve 6, and a washer 9 is provided between the sleeve 6 and the locking nut 8; by adjusting the bolt 7, the sealing strip 2 is pressed tightly under the cab 1 without leaving a gap. This can not only ensure the sound insulation effect, but also prevent rain, dust and other debris from entering the cockpit 1, thereby ensuring a good environment in the cockpit 1.

[0023] Specifically, the cockpit 1 adopts a frame structure surrounded by square tubes, which have a large surface area and can fully fit with the sealing strip 2.

[0024] It should be noted that the base frame 5 is provided with a sleeve 6 in a fixed structure manner, and the sleeve 6 is engaged with the bolt 7 through a thread. After the bolt 7 is tightened, the sleeve 6 can apply an upward / downward thrust to the bolt 7 through the thread.

[0025] Specifically, a locking nut 8 is provided below the sleeve 6, and the locking nut 8 is threadedly engaged with the bolt 7. The axial counterforce generated by tightening the locking nut 8 and the sleeve 6 increases the friction force to prevent the bolt 7 from loosening.

[0026] It should be noted that a washer 9 is arranged between the locking nut 8 and the sleeve 6. The area of ​​the washer 9 is larger than the contact surface between the locking nut 8 and the sleeve 6, which can disperse the pressure on the contact surface; the one friction surface between the locking nut 8 and the sleeve 6 is changed into two friction surfaces between the locking nut 8 and the washer 9, and between the sleeve 6 and the washer 9, thereby increasing the friction.

[0027] Specifically, the limiting groove 4 is a U-shaped groove structure. The side panels on both sides of the U-shaped groove are fitted with the side elevations of the sealing strip to prevent rainwater and dust from entering the cockpit 1 along the gap.

[0028] It should be noted that the sealing strip (2) is made of rubber, and the side surface of the sealing strip (2) is interference-fitted with the inner surface of the limiting groove (4). The rubber material has good elasticity and plasticity, can effectively fill the gaps on the sealing surface, and has good pressure resistance, and will not cause damage to the internal structure due to pressure. The side surfaces of the sealing strip 2 are fitted with the side panels of the limiting groove 4, and the sealing strip 2 and the side panels of the limiting groove 4 are fitted together, which can effectively prevent dust and rainwater from entering the cockpit 1.

[0029] The working principle and working process of the utility model are as follows:

[0030] Screw the locking nut 8 into the bolt 7 until the locking nut 8 contacts the upper end surface of the bolt cap, then pass the washer 9 through the upper end of the bolt 7 and place it on the upper surface of the locking nut 8, then screw the upper end of the bolt 7 into the sleeve 6, so that the upper end of the bolt 7 passes through the sleeve 6 and hits the lower end surface of the push plate 3, continue to screw the bolt 7, and tighten the sealing strip 2 under the cockpit 1 through the push plate 3, then screw the locking nut 8, and apply an upward thrust to the washer 9 through the locking nut 8 until the upper end surface of the washer 9 fits with the lower end surface of the sleeve 6, and then repeat the above steps with one bolt 7 between them. After completing one circle of operation, repeat the above steps for the remaining bolts 7 until the sealing strip is completely pressed against the lower end surface of the cockpit 1.

[0031] In the description of the present invention, it should be understood that the terms "center", "upper", "lower", "left", "right", "front", "back", "lower left", "upper right", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. Although the present invention has been described according to a limited number of embodiments, those skilled in the art, with the benefit of the above description, should understand that other embodiments can be conceived within the scope of the present invention described thereby.

Claims

1. A cab sealing structure, comprising a cab (1), a bottom frame (5) and a sealing structure, characterized in that: The sealing structure includes: A sealing strip (2), the sealing strip (2) being located between the cockpit (1) and the bottom frame (5); A push plate (3), the push plate (3) is located on the lower end surface of the sealing strip (2); A limiting groove (4), the limiting groove (4) is connected to the bottom plate frame (5) in a fixed structure manner, and the sealing strip (2) and the push plate (3) are both located in the limiting groove (4); A bolt (7), one end of which passes through the bottom plate frame (5) and the limiting groove (4) and fits with the lower surface of the push plate (3), and the bolt (7) is connected to the bottom plate frame (5) and / or the limiting groove (4) in an engaging manner through a thread.

2. A cab sealing structure according to claim 1, characterized in that: The cockpit (1) adopts a frame structure surrounded by square tubes.

3. The cab sealing structure according to claim 1, characterized in that: The base frame (5) is provided with a sleeve (6) in a fixed structure manner, and the sleeve (6) is engaged with the bolt (7) through a thread.

4. A cab sealing structure according to claim 3, characterized in that: A locking nut (8) is arranged below the sleeve (6), and the locking nut (8) is threadedly engaged with the bolt (7).

5. A cab sealing structure according to claim 4, characterized in that: A washer (9) is arranged between the locking nut (8) and the sleeve (6).

6. The cab sealing structure according to claim 1, characterized in that: The limiting groove (4) is a U-shaped groove structure.

7. The cab sealing structure according to claim 1, characterized in that: The sealing strip (2) is made of rubber material, and the side surface of the sealing strip (2) is interference-fitted with the inner surface of the limiting groove (4).

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