Electric control sealing door structure for tractor cab

Abstract

This utility model discloses an electrically controlled sealing door structure for a tractor cab, comprising: a door panel; a grip fixedly fitted to the center of the front side of the door panel; a lock seat fixedly connected vertically to the center of the inner side of the grip; an electric push rod fixedly fitted at equal intervals on the front side of the lock seat; a locking tongue fixedly connected to the front output end of each electric push rod; piezoelectric sensors symmetrically fitted and fixedly fitted to the inner side of the grip; elastic pads fixedly connected to the periphery of the opposite side of each piezoelectric sensor; and a push-type spring switch fixedly connected to the opposite side of each elastic pad. The opposite side of the push-type spring switch corresponds to the pressure sensing of the piezoelectric sensor for push-type electrically controlled opening and closing. The push-type spring is placed inside the grip for a concealed design, which does not affect normal gripping and opening / closing while reducing the risk of accidental opening and improving operational safety.

Description

Technical Field

[0001] This utility model relates to the field of tractor cab door technology, and in particular to an electrically controlled sealing door structure for tractor cabs. Background Technology

[0002] Tractors are self-propelled power units used to tow and drive construction machinery to complete various mobile operations. They can also be used as power for stationary operations. However, with the continuous development of technology, traditional open-type tractors have limited usage scenarios and lack safety protection. Nowadays, most tractors are equipped with a cab for safe operation in all weather conditions.

[0003] The existing tractor cab access doors mostly use mechanical locks, which are controlled by turning the handle. This poses a risk of accidental opening, especially during mechanical operation, and presents certain safety hazards. Adding a deadbolt to the cab would affect the driver's ability to quickly open and close the door. In addition, the conventional door panel will generate continuous vibration at the contact point with the cab when the tractor is running, affecting the airtightness, generating noise, damaging the structure, and reducing the service life of the door panel. Summary of the Invention

[0004] The purpose of this utility model is to provide an electrically controlled sealing door structure for a tractor cab, which can reduce the intensity of vibration transmission during mechanical operation, improve the overall sealing stability, and reduce the risk of accidental opening without affecting normal gripping and opening, thereby improving operational safety.

[0005] To achieve the above objectives, an electrically controlled sealing door structure for a tractor cab is provided, comprising: a door panel, the rear side of which is fitted with a long-shaft hinge and rotatably connected to a pre-reserved door mounting position in the tractor cab; a sealing frame is nested and fixed to the right side of the outer side of the door panel; an airbag gasket is fitted and fixed to the left side of the sealing frame, the airbag gasket being arranged around the outer side of the door panel; a grip is fitted and fixed to the center of the front side of the door panel; a lock seat is vertically fixed to the center of the inner side of the grip; electric push rods are fitted and fixed at equal intervals on the front side of the lock seat; a locking tongue is fixedly connected to the front output end of each electric push rod; the locking tongues slide forward through the door panel and slide into a pre-reserved lock groove in the tractor cab; piezoelectric sensors are symmetrically fitted and fixed to the inner side of the grip; and piezoelectric sensors are arranged on opposite sides of their outer periphery. An elastic pad is fixedly connected, and a push-type spring switch is fixedly connected to the opposite side of each elastic pad. The opposite side of each push-type spring switch is in contact with a piezoelectric sensor. The opposite side of each push-type spring switch extends out of the grip and slides in contact with it. A fixed sealing frame is nested on the outside of the door panel to cover and fit the outside of the cab. The airbag gasket surrounding the door provides elastic compression sealing and buffer protection, reducing the intensity of vibration transmission during mechanical operation and improving the overall sealing stability. An electric push rod is provided to electrically control the push-pull latch, which works with the push-type spring switch and piezoelectric sensor for push-type electric control opening and closing. The push-type spring is placed inside the grip for a hidden design, which does not affect normal grip opening and closing while reducing the risk of accidental opening and improving operational safety.

[0006] According to the aforementioned electrically controlled sealing door structure for a tractor cab, the sealing frame is designed in two sections, front and rear, and the two sections are elastically connected by rubber. The side of the sealing frame extending rearward beyond the door panel is the rear section, and the remaining part is the front section. This design avoids affecting the normal rotation and opening / closing movement of the door panel, ensuring that the hinge connection also remains sealed.

[0007] According to the aforementioned electrically controlled sealing door structure for a tractor cab, the left side of the airbag gasket is elastically pressed and fitted against the outer wall of the tractor cab. The high flexibility of the airbag structure is utilized to achieve a sealed fit between the sealing frame and the outer wall of the tractor cab.

[0008] According to the aforementioned electrically controlled sealing door structure for a tractor cab, a synchronization controller is mounted on the electric push rod, and the piezoelectric sensors can all work in conjunction with the synchronization controller to control the extension and retraction of the electric push rod. This enables rapid electrically controlled opening and closing of the door panel.

[0009] According to the aforementioned electrically controlled sealing door structure for a tractor cab, a layer of antistatic foam is adhered to the left side of the sealing frame, and the left side of the antistatic foam flexibly contacts the outer wall of the tractor cab. This flexible adhesion reduces noise.

[0010] According to the aforementioned electrically controlled sealing door structure for a tractor cab, the left and right ends of the grip are respectively located on the inner and outer sides of the tractor cab, and the outer edges of both sides of the grip are rounded to eliminate sharp corners and facilitate gripping and pushing / pulling.

[0011] According to the described electrically controlled sealing door structure for a tractor cab, wear-resistant pads are symmetrically fitted to the front end of the latch. This extends the service life of the latch and reduces wear.

[0012] According to the aforementioned electrically controlled sealing door structure for a tractor cab, positioning pads are symmetrically fixed vertically to the left front part of the sealing frame. The left end of each positioning pad is embedded into the outer wall of the tractor cab and slidably engaged with it for positioning. This prevents the sealing frame from slipping vertically after the door is closed.

[0013] The above-mentioned solution has the following beneficial effects:

[0014] In this invention, a fixed sealing frame is nested on the outside of the door panel to cover and fit the outside of the cab. An airbag gasket is then installed around the door panel to provide elastic compression sealing and buffer protection, reducing the intensity of vibration transmission during mechanical operation and improving the overall sealing stability. In addition, an electric push rod is provided to electrically control the push-pull latch, which is combined with a push-type spring switch and a piezoelectric sensor for push-type electric control opening and closing. The push-type spring is placed inside the grip frame for a hidden design, which does not affect normal grip opening and closing while reducing the risk of accidental door opening and improving operational safety.

[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0017] Figure 1 This is a first-view schematic diagram of an electrically controlled sealing door structure for a tractor cab according to the present invention;

[0018] Figure 2 This is a second-view schematic diagram of an electrically controlled sealing door structure for a tractor cab according to the present invention;

[0019] Figure 3This is a schematic diagram of the connection structure of the door panel in an electrically controlled sealing door structure for a tractor cab according to the present invention;

[0020] Figure 4 This is a schematic diagram of the connection structure of the grip in the electrically controlled sealing door structure for a tractor cab according to the present invention.

[0021] Legend:

[0022] 1. Door panel; 2. Long shaft hinge; 3. Sealing frame; 4. Airbag gasket; 5. Handle; 6. Lock seat; 7. Electric push rod; 8. Lock tongue; 9. Piezoelectric sensor; 10. Elastic pad; 11. Press-type spring switch; 12. Wear-resistant liner; 13. Positioning pad head. Detailed Implementation

[0023] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0024] Reference Figure 1-4 This utility model embodiment provides an electrically controlled sealing door structure for a tractor cab, including: a door panel 1, a long shaft hinge 2 mounted on the rear side of the door panel 1 and rotatably connected to a reserved door mounting position in the tractor cab, a sealing frame 3 nested and fixed on the outer right side of the door panel 1, the sealing frame 3 having a two-section design with the two sections elastically connected by rubber, a layer of antistatic foam attached to the left side of the sealing frame 3, the left side of the antistatic foam flexibly contacting the outer wall of the tractor cab, the side of the sealing frame 3 extending rearward beyond the door panel 1 being the rear section, the remaining part being the front section, and the left side of the sealing frame 3... Positioning pads 13 are symmetrically fixed on the front side. The left end of the positioning pads 13 is embedded in the outer wall of the tractor cab and is slidably fitted and positioned therewith. An airbag gasket 4 is fitted and fixed on the left side of the sealing frame 3. The airbag gasket 4 is arranged around the outside of the door panel 1. The left side of the airbag gasket 4 is elastically squeezed and fitted against the outer wall of the tractor cab. The sealing frame 3 is nested and fixed on the outside of the door panel 1 to cover and fit against the outside of the cab. The airbag gasket 4, which is arranged around the door panel 1, provides elastic compression sealing and buffer protection for both, reducing the intensity of vibration transmission during mechanical operation and improving the overall sealing stability.

[0025] A grip 5 is fitted and fixed to the center of the front side of the door panel 1. The left and right ends of the grip 5 are respectively located on the inner and outer sides of the tractor cab. The outer edges of both sides of the grip 5 are rounded. A lock seat 6 is vertically fixed to the center of the inner side of the grip 5. An electric push rod 7 is fitted and fixed at equal intervals on the front side of the lock seat 6. A locking tongue 8 is fixedly connected to the front output end of the electric push rod 7. The locking tongue 8 slides forward through the door panel 1 and slides into the pre-reserved lock groove in the tractor cab. Wear-resistant pads 12 are symmetrically attached to the front end of the locking tongue 8. Piezoelectric sensors 9 are symmetrically fitted and fixed to the inner side of the grip 5. A synchronous control is mounted on the electric push rod 7. The device and the piezoelectric sensor 9 can work with the synchronous controller to control the extension and retraction of the electric push rod 7. An elastic pad 10 is fixedly connected to the outer periphery of the opposite side of the piezoelectric sensor 9. A push-type spring switch 11 is fixedly connected to the opposite side of the elastic pad 10. The opposite side of the push-type spring switch 11 is in pressure-sensitive cooperation with the piezoelectric sensor 9. The opposite side of the push-type spring switch 11 extends out of the grip 5 and slides with it to perform push-type electric control opening and closing. The push-type spring is placed inside the grip 5 for a hidden design, which does not affect normal grip opening and closing while reducing the risk of accidental opening and improving operation safety.

[0026] Those skilled in the art should connect all electrical components and their compatible power supplies in this case via wires, and should select appropriate controllers according to actual conditions to meet control requirements. The specific connection and control sequence should refer to the working principle described below, where the electrical components are connected in sequence. The detailed connection methods are well-known in the art. The following mainly introduces the working principle and process, and will not describe the electrical control further.

[0027] Working principle: In this utility model, a sealing frame 3 is nested and fixed on the outside of the door panel 1 to cover and fit the outside of the cab. Then, an airbag gasket 4 is installed around it to provide elastic compression sealing and buffer protection for both, reducing the intensity of vibration transmission during mechanical operation and improving the overall sealing stability. In addition, an electric push rod 7 is set to electrically control the push-pull lock tongue 8, which is matched with a push-type spring switch 11 and a piezoelectric sensor 9 for push-type electric control opening and closing. The push-type spring is placed inside the grip 5 for a hidden design, which does not affect normal grip opening and closing while reducing the risk of accidental door opening and improving operational safety.

[0028] In the description of this utility model, it should be understood that the terms "coaxial," "bottom," "one end," "top," "middle," "other end," "upper," "side," "top," "inner," "front," "center," and "both ends," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Furthermore, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "fixed installation," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0029] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. An electrically controlled sealing door structure for a tractor cab, comprising: The door panel (1) is characterized in that a long shaft hinge (2) is fitted on the rear side of the door panel (1) and is rotatably connected to the reserved door installation position of the tractor cab. A sealing frame (3) is nested and fixed on the right side of the outer side of the door panel (1). An airbag gasket (4) is fitted and fixed on the left side of the sealing frame (3). The airbag gasket (4) is arranged around the outer side of the door panel (1). A grip (5) is fitted and fixed in the middle of the front side of the door panel (1). A lock seat (6) is vertically fixed in the middle of the inner side of the grip (5). An electric push rod (7) is fitted and fixed at equal intervals on the front side of the lock seat (6). The electric push rod (7) is connected to the front side of the electric push rod (7). All ends are fixedly connected with a locking tongue (8). The locking tongue (8) slides forward through the door panel (1) and slides into the lock groove reserved in the tractor cab. The inner side of the grip (5) is symmetrically fitted with a piezoelectric sensor (9). The outer periphery of the opposite side of the piezoelectric sensor (9) is fixedly connected with an elastic pad (10). The opposite side of the elastic pad (10) is fixedly connected with a push-type spring switch (11). The opposite side of the push-type spring switch (11) is corresponding to the pressure-sensitive cooperation of the piezoelectric sensor (9). The opposite side of the push-type spring switch (11) extends out of the grip (5) and slides into it.

2. The electrically controlled sealing door structure for a tractor cab according to claim 1, characterized in that, The sealing frame (3) is designed in two sections, front and back, and the two sections are elastically connected by rubber. The side of the sealing frame (3) that extends backward beyond the door panel (1) is the rear section, and the rest is the front section.

3. The electrically controlled sealing door structure for a tractor cab according to claim 1, characterized in that, The left side of the airbag gasket (4) is elastically pressed against the outer wall of the tractor cab.

4. The electrically controlled sealing door structure for a tractor cab according to claim 1, characterized in that, The electric push rod (7) is equipped with a synchronization controller, and the piezoelectric sensors (9) can all work with the synchronization controller to control the extension and retraction of the electric push rod (7).

5. The electrically controlled sealing door structure for a tractor cab according to claim 1, characterized in that, A layer of antistatic foam is attached to the left side of the sealing frame (3), and the left side of the antistatic foam is in flexible contact with the outer wall of the tractor cab.

6. The electrically controlled sealing door structure for a tractor cab according to claim 1, characterized in that, The left and right ends of the grip (5) are respectively located on the inner and outer sides of the tractor cab, and the outer edges of the left and right sides of the grip (5) are rounded.

7. The electrically controlled sealing door structure for a tractor cab according to claim 1, characterized in that, The front end of the latch (8) is symmetrically fitted with wear-resistant pads (12).

8. The electrically controlled sealing door structure for a tractor cab according to claim 1, characterized in that, The sealing frame (3) has a positioning pad (13) fixed symmetrically on the left front part. The left end of the positioning pad (13) is embedded in the outer wall of the tractor cab and is slidably fitted and positioned therewith.

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