Engineering machinery cab door sealing structure

Abstract

The utility model provides an engineering machinery cab vehicle door sealing structure which comprises a cab body, a sealing groove is formed in a vehicle door frame of the cab body, a vehicle door plate is movably connected into the sealing groove through a hinge, and the end, away from the hinge, of the vehicle door plate is connected with the cab body through a door lock assembly. The edge of the outer side face of the vehicle door plate is fixedly connected with a sealing paster, the sealing paster is internally and fixedly connected with a magnetic strip through a groove, meanwhile, the bottom of a sealing groove is provided with a confluence groove, and the bottom of the confluence groove is symmetrically provided with liquid drainage grooves. The surface of the sealing groove is fixedly connected with a main sealing strip through a mounting groove. A diversion trench is formed in the side face of the vehicle door plate. According to the sealing structure, the sealing paste, the main sealing strip, the auxiliary sealing strip and the embedded ring are matched, so that the sealing structure at the joint of the vehicle door plate and the cab main body has a good sealing effect, and a driver in the cab main body can be effectively protected.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering machinery equipment, in particular to a sealing structure for a cab door of an engineering machinery. Background Art

[0002] The cab is an important part of trucks and construction machinery vehicles. It is where professional drivers work day and night. Its structure is directly related to the driver's safety, work efficiency and health. The cab generally adopts a metal thin shell structure and is flexibly connected to the frame. It does not bear load and is a non-load-bearing body. The cab for construction machinery generally needs to be sealed during work; when the user needs to drive construction machinery equipment to operate in different environments, the user needs to seal the door of the cab of the construction machinery equipment. However, when existing construction machinery is working, the cab door is only sealed by a layer of sealing gasket, which makes the sealing effect of the cab door poor, which makes it easy for users to be in danger when working in harsh environments. At the same time, in rainy weather, rainwater can easily penetrate from the door of the construction machinery cab into the interior of the cab, causing water accumulation problems, thereby increasing the probability of failure of the construction machinery cab. Utility Model Content

[0003] In order to overcome the defects of the prior art, a sealing structure for a cab door of an engineering machinery is provided to solve the problems raised in the above background technology.

[0004] In order to achieve the above-mentioned purpose, a sealing structure for the door of an engineering machinery cab is provided, comprising: a cab body, a sealing groove is provided at the door frame of the cab body, and the door panel is movably connected to the sealing groove through a hinge, and the end of the door panel away from the hinge is connected to the cab body through a door lock assembly, and the edge of the outer side of the door panel is fixedly connected to a sealing sticker, and the inside of the sealing sticker is fixedly connected to a magnetic strip through a groove, and at the same time, a confluence groove is provided at the bottom of the sealing groove, and a drainage groove is symmetrically provided at the bottom of the confluence groove, and the surface of the sealing groove is fixedly connected to the main sealing strip through an installation groove, and the side of the sealing groove is fixedly connected to the secondary sealing strip, and a guide groove is provided on the side of the door panel, and the position of the door panel surface relative to the main sealing strip is fixedly connected to the mosaic ring.

[0005] Preferably, the sizes of the door panel and the sealing groove are adapted to each other, and the guide groove opened on the side of the door panel is an annular structure, while the cross-section of the guide groove is a semicircular structure, and the guide groove on the lower surface of the door panel is opposite to the confluence groove.

[0006] Preferably, the sealing sticker fixedly connected at the edge of the outer surface of the door panel has a U-shaped structure, and the magnetic strip fixedly connected to the side of the sealing sticker close to the cab body has a U-shaped structure. At the same time, a buffer layer is fixedly connected to the side of the magnetic strip surface close to the cab body, and the buffer layer has a ring structure.

[0007] Preferably, the side of the sealing groove away from the opening is fixedly connected to a secondary sealing strip, and the secondary sealing strip is annular in structure, and the cross section of the secondary sealing strip is a right-angled trapezoidal structure, while the inner side of the secondary sealing strip abuts the side of the door panel.

[0008] Preferably, the edges of the inner surface of the door panel are all arc-shaped, and the engaging ring fixedly connected to the inner surface of the door panel is annular, and the surface of the engaging ring away from the door panel is an arc-shaped protrusion, and the engaging groove is provided on the surface of the main sealing strip corresponding to the position of the engaging ring.

[0009] Preferably, the main sealing strip is in a U-shaped structure as a whole, the cross section of the main sealing strip is in an L-shaped structure, and the bent portion of the main sealing strip abuts the inner surface of the door panel. At the same time, the cross section formed by the main sealing strip and the interlocking ring is in an F-shaped structure.

[0010] Preferably, the confluence trough is a long strip structure, the cross-section of the confluence trough is a right-angled trapezoidal structure, and a plurality of drainage troughs are opened at the bottom of the confluence trough in parallel and at equal intervals along the length direction, and the drainage trough is an L-shaped structure. At the same time, the cross-section of the fixed part of the hinge is an L-shaped structure, and the hinge is located on the outer side of the sealing sticker.

[0011] Compared with the existing technology, the beneficial effect of the present invention is: through the cooperation of sealing stickers, guide grooves, confluence grooves and drainage grooves, the engineering machinery cab can effectively reduce the probability of rainwater penetrating into the sealing groove in rainy weather, and then effectively reduce the probability of water accumulation inside the cab body, ensuring the safety of the cab body when in use. At the same time, through the cooperation of secondary sealing strips, main sealing strips and interlocking rings, the connection between the door panel and the cab body has multiple sets of sealing structures, which can effectively enhance the sealing effect at the door of the engineering machinery cab, ensuring the safety of users when working in harsh environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a front view schematic diagram of an embodiment of the utility model.

[0013] Figure 2 It is a partial side view schematic diagram of an embodiment of the present utility model.

[0014] Figure 3 It is a schematic top view of an embodiment of the present utility model.

[0015] Figure 4 For the embodiment of the utility model Figure 3 A magnified schematic diagram of .

[0016] In the figure: 1. Cab body; 2. Sealing sticker; 3. Door panel; 4. Door lock assembly; 5. Confluence groove; 6. Drain groove; 7. Hinge; 8. Sealing groove; 9. Main sealing strip; 10. Fitting groove; 11. Fitting ring; 12. Guide groove; 13. Magnetic strip; 14. Secondary sealing strip. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0018] Reference Figures 1 to 4 As shown, the utility model provides a sealing structure for a door of a cab of engineering machinery, comprising: a cab body 1, a sealing groove 8 is provided at the door frame of the cab body 1, and a door panel 3 is movably connected in the sealing groove 8 through a hinge 7, and the end of the door panel 3 away from the hinge 7 is connected to the cab body 1 through a door lock assembly 4, and a sealing sticker 2 is fixedly connected at the edge of the outer side of the door panel 3, and a magnetic strip 13 is fixedly connected to the sealing sticker 2 through a groove, and at the same time, a confluence groove 5 is provided at the bottom of the sealing groove 8, and a drainage groove 6 is symmetrically provided at the bottom of the confluence groove 5, and the surface of the sealing groove 8 is fixedly connected to the main sealing strip 9 through a mounting groove, and the side of the sealing groove 8 is fixedly connected to the auxiliary sealing strip 14, and a guide groove 12 is provided on the side of the door panel 3, and the surface of the door panel 3 is fixedly connected to the position of the main sealing strip 9.

[0019] In this embodiment, after the driver enters the engineering machinery cab, he closes the door panel 3, and then the door panel 3 is embedded in the sealing groove 8 opened on the outer side of the cab body 1 under the action of the hinge 7, wherein the sealing sticker 2 fixedly connected to the outer side of the door panel 3 is fixed to the outer side of the cab body 1 by magnet adsorption to form a first sealing structure, and the side of the door panel 3 squeezes the secondary sealing strip 14 fixedly connected to the side of the sealing groove 8 to form a second sealing structure, so that part of the rainwater that has penetrated the sealing sticker 2 cannot further penetrate into the interior of the cab body 1, reducing the driving There is a problem of water accumulation inside the cab main body 1, and through the cooperation of the guide groove 12, the confluence groove 5 and the drainage groove 6, the rainwater that penetrates into the sealing groove 8 can be quickly discharged. At the same time, when the fitting ring 11 on the inner surface of the door panel 3 is embedded in the fitting groove 10, the bent portion of the main sealing strip 9 will also synchronously abut against the inner surface of the door panel 3, thereby forming the third and fourth sealing structures. Through the setting of multiple sealing structures, the sealing effect of the connection between the door panel 3 and the cab main body 1 can be effectively enhanced to ensure the safety of the driver when working in harsh environments.

[0020] As a preferred embodiment, the sizes of the door panel 3 and the sealing groove 8 are adapted to each other, and the guide groove 12 opened on the side of the door panel 3 is an annular structure, and the cross-section of the guide groove 12 is a semicircular structure. At the same time, the guide groove 12 on the lower surface of the door panel 3 is opposite to the confluence groove 5.

[0021] In this embodiment, if Figure 1 、 Figure 2 and Figure 3 The sizes of the door panel 3 and the sealing groove 8 are matched, which can help enhance the sealing of the door panel 3 after closing. The opening of the guide groove 12 can guide the rainwater that penetrates into the sealing groove 8 to flow in the direction of the confluence groove 5, thereby preventing the rainwater accumulated in the sealing groove 8 from penetrating into the interior of the cab body 1.

[0022] As a preferred embodiment, the sealing sticker 2 fixedly connected at the edge of the outer surface of the door panel 3 has a U-shaped structure, and the magnetic strip 13 fixedly connected to the side of the sealing sticker 2 close to the cab body 1 has a U-shaped structure. At the same time, a buffer layer is fixedly connected to the side of the surface of the magnetic strip 13 close to the cab body 1, and the buffer layer has a ring structure.

[0023] In this embodiment, if Figure 1 and Figure 4 The setting of the sealing sticker 2 can effectively reduce the probability of external rainwater penetrating into the sealing groove 8, and then can help reduce the probability of water accumulation inside the cab body 1, ensuring the safety inside the cab body 1. At the same time, the thin sheet-like buffer layer is made of soft rubber material, which can effectively reduce the probability of the magnet being damaged due to adsorption and impact.

[0024] As a preferred embodiment, the side of the sealing groove 8 away from the end of the opening is fixedly connected to the secondary sealing strip 14, and the secondary sealing strip 14 has an annular structure, and the cross-section of the secondary sealing strip 14 is a right-angled trapezoidal structure. At the same time, the inner side of the secondary sealing strip 14 abuts the side of the door panel 3.

[0025] In this embodiment, if Figure 2 and Figure 4 The setting of the secondary sealing strip 14 can effectively enhance the sealing performance of the connection between the sealing groove 8 and the door panel 3, thereby reducing the probability of rainwater or harmful gases penetrating into the interior of the cab body 1. At the same time, the inclined structure of the secondary sealing strip 14 can effectively reduce the probability of jamming between the secondary sealing strip 14 and the door panel 3, ensuring that the door panel 3 can be closed smoothly.

[0026] As a preferred embodiment, the edges of the inner surface of the door panel 3 are all arc-shaped, and the engaging ring 11 fixedly connected to the inner surface of the door panel 3 is an annular structure, and the surface of the engaging ring 11 away from the door panel 3 is an arc-shaped protrusion, and the engaging groove 10 is provided on the surface of the main sealing strip 9 corresponding to the position of the engaging ring 11.

[0027] In this embodiment, if Figure 2 and Figure 4 The arc-shaped structure of the edge on the inner surface of the door panel 3 can not only help improve the smoothness of the closing of the door panel 3 in the sealing groove 8, but also help reduce the probability of wear of the secondary sealing strip 14. At the same time, the structural setting of the fitting ring 11 can help reduce the difficulty of the fitting ring 11 embedding into the fitting groove 10, thereby ensuring the airtightness of the connection between the fitting ring 11 and the fitting groove 10.

[0028] As a preferred embodiment, the main sealing strip 9 is a U-shaped structure as a whole, the cross-section of the main sealing strip 9 is an L-shaped structure, and the bent portion of the main sealing strip 9 abuts the inner surface of the door panel 3. At the same time, the cross-section formed by the combination of the main sealing strip 9 and the interlocking ring 11 is an F-shaped structure.

[0029] In this embodiment, if Figure 2 and Figure 4 The setting of the bent portion of the main sealing strip 9 can not only help enhance the sealing performance of the connection between the main sealing strip 9 and the door panel 3, but also have a buffering effect on the closed door panel 3, thereby reducing the vibration and noise generated when the door panel 3 is closed.

[0030] As a preferred embodiment, the confluence groove 5 is a long strip structure, the cross-section of the confluence groove 5 is a right-angled trapezoidal structure, and a plurality of drainage grooves 6 are opened at the bottom of the confluence groove 5 in parallel and at equal intervals along the length direction, and the drainage grooves 6 are L-shaped. At the same time, the cross-section of the fixed part of the hinge 7 is an L-shaped structure, and the hinge 7 is located on the outer side of the sealing sticker 2.

[0031] In this embodiment, if Figure 1 、 Figure 2 and Figure 3 The structural setting of the confluence groove 5 allows the rainwater accumulated in the sealing groove 8 to be quickly discharged through the drainage groove 6, and the inclined structure at the bottom of the drainage groove 6 can not only prevent the residual rainwater, but also reduce the probability of external rainwater flowing back into the sealing groove 8 through the drainage groove 6. At the same time, the structural setting of the fixed part of the hinge 7 allows the sealing sticker 2 to be set between the hinge 7 and the door panel 3, thereby ensuring the comprehensive protection of the sealing sticker 2.

[0032] The sealing structure of the engineering machinery cab door of the present invention cooperates with the sealing sticker 2, the main sealing strip 9, the secondary sealing strip 14 and the interlocking ring 11, so that the sealing structure at the connection between the door panel 3 and the cab body 1 has a good sealing effect, which can effectively protect the driver inside the cab body 1 and reduce the chance of the driver suffering health damage when working in harsh environments. At the same time, the door lock assembly 4 is a common brand model on the market.

[0033] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sealing structure for a cab door of an engineering machinery, comprising: Cab cab body (1), characterized in that: a sealing groove (8) is opened at the door frame of the cab body (1), and the door panel (3) is movably connected in the sealing groove (8) through a hinge (7), and one end of the door panel (3) away from the hinge (7) is connected to the cab body (1) through a door lock assembly (4), and a sealing sticker (2) is fixedly connected to the edge of the outer side of the door panel (3), a magnetic strip (13) is fixedly connected to the sealing sticker (2) through a groove, at the same time, a confluence groove (5) is opened at the bottom of the sealing groove (8), drain grooves (6) are symmetrically opened at the bottom of the confluence groove (5), and a main sealing strip (9) is fixedly connected to the surface of the sealing groove (8) through a mounting groove, a secondary sealing strip (14) is fixedly connected to the side of the sealing groove (8), and a diversion groove (12) is opened on the side of the door panel (3), and a fitting ring (11) is fixedly connected to the surface of the door panel (3) corresponding to the main sealing strip (9).

2. The sealing structure for a cab door of an engineering machinery according to claim 1, characterized in that: The door panel (3) and the sealing groove (8) are of matching dimensions, and the diversion groove (12) opened on the side of the door panel (3) is of an annular structure, and the cross section of the diversion groove (12) is of a semi-circular structure, and at the same time, the diversion groove (12) on the lower surface of the door panel (3) faces the confluence groove (5).

3. The sealing structure for a cab door of an engineering machinery according to claim 1, characterized in that: The sealing sticker (2) fixedly connected to the edge of the outer surface of the door panel (3) is of a square frame structure, and the magnetic strip (13) fixedly connected to the side close to the cab body (1) of the sealing sticker (2) is of a square structure, and at the same time, a buffer layer is fixedly connected to the side of the magnetic strip (13) close to the cab body (1), and the buffer layer is of an annular structure.

4. The sealing structure for a cab door of an engineering machinery according to claim 1, characterized in that: The secondary sealing strip (14) is fixedly connected to the end of the side of the sealing groove (8) far away from the opening, and the secondary sealing strip (14) is of an annular structure, and the cross section of the secondary sealing strip (1) is of a right trapezoidal structure, and at the same time, the inner side of the secondary sealing strip (14) abuts against the side of the door panel (3).

5. The sealing structure for a cab door of an engineering machinery according to claim 1, characterized in that: The edges of the inner surface of the door panel (3) are all of an arc structure, and the fitting ring (11) fixedly connected to the inner surface of the door panel (3) is of an annular structure, and the surface of the side of the fitting ring (11) away from the door panel (3) is of a convex arc surface, and a fitting groove (10) is correspondingly opened on the surface of the main sealing strip (9) corresponding to the fitting ring (11).

6. The sealing structure for a cab door of an engineering machinery according to claim 1, characterized in that: The main sealing strip (9) is of an overall square frame structure, the cross section of the main sealing strip (9) is of an L-shaped structure, and the bent part of the main sealing strip (9) abuts against the inner surface of the door panel (3), and at the same time, the cross section formed by the combination of the main sealing strip (9) and the fitting ring (11) is of an F-shaped structure.

7. The sealing structure for a cab door of an engineering machinery according to claim 1, characterized in that: The confluence groove (5) is of a long strip structure, the cross section of the confluence groove (5) is of a right trapezoidal structure, and a plurality of groups of drain grooves (6) are opened at the bottom of the confluence groove (5) in parallel and equidistantly along the length direction, and the drain groove (6) is of an L-shaped structure, and at the same time, the cross section of the fixed part of the hinge (7) is of an L-shaped structure, and the hinge (7) is located on the outer side of the sealing sticker (2).

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