Sliding type lifting door for tank car

Abstract

The utility model provides a sliding type lifting door for a tank car, and solves the problems that the lifting door is clamped and cannot be opened or closed due to the fact that the lifting door is easy to deform after being assembled, or the gap between a bearing of the lifting door and a track is difficult to control and the bearing cannot smoothly roll when the gap is too large or too small in the filling door of the special tank car. The door specifically comprises a door frame, an upper door plate, bolts, a left sliding rail, a right sliding rail and a sliding door assembly. The sliding door assembly comprises a sliding door, a handle and a sliding block. The mode that the sliding block is matched with the sliding rail is adopted, the integrating degree of the sliding block and the sliding rail is high, and the sliding door slides up and down smoothly, easily and effortlessly; the door frame is connected with the operation room steel frame, the sliding block is connected with the sliding door, the sliding rail is connected with the door frame through screws or rivets, the structure is simple, the assembling process is accurate and controllable, assembling deformation is small, and clamping stagnation of the sliding door is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of special tank trucks, and in particular to a sliding lifting door for a tank truck. Background Art

[0002] Some specialized tank trucks have an operating room at the loading and unloading pipelines, with a filling door at the corresponding pipeline interface. Because the operating room is confined by the pipeline passages, a hinged revolving door is not feasible for the filling door. Currently, the filling door in the operating room uses a bearing-connected sliding door. The door frame is welded from square tubes and fixed to the operating room's steel frame. The vertical door frame also serves as a track, and the sliding door moves up and down via bearings. This problem is that the clearance between the bearing and the track is difficult to control. If the clearance is large, the bearing and track are often out of contact, preventing the bearing from rolling. If the clearance is small, the bearing is prone to jamming, preventing the sliding door from opening. Furthermore, both the sliding door and the vertical door frame, which serve as the track, are assembled by welding, which is prone to deformation during the welding process, making the sliding door more prone to jamming after assembly. Therefore, a sliding door with a simple door frame connection to the operating room's steel frame, easy assembly, and flexible and smooth opening and closing is required. Summary of the Invention

[0003] The purpose of the utility model is to solve the technical problems that the lifting door of the existing special tank truck filling door is easy to deform after assembly, resulting in the lifting door being stuck and unable to open or close, or the gap between the bearing and the track of the lifting door is difficult to control, and the gap between the bearing and the track cannot make the bearing roll smoothly if it is too large or too small, and to provide a sliding lifting door for a tank truck.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A sliding lifting door for a tank truck, which is special in that it comprises a door frame, an upper door panel, a latch, a left sliding rail, a right sliding rail and a sliding door assembly;

[0006] The door frame includes an upper frame, a lower frame, a left frame, and a right frame which are sequentially installed on the operating room frame;

[0007] The left slide rail is fixed to the right side of the left frame, and the right slide rail is fixed to the left side of the right frame;

[0008] The sliding door assembly includes a sliding door, a handle, and a slider; the handle is installed on the upper part of the sliding door; there are four sliders, which are installed at the four corners of the sliding door to allow the sliding door to slide up and down;

[0009] The latch is installed on the left side or the right side of the sliding door, and when the sliding door moves upward or downward to the maximum position, the latch fixes the sliding door.

[0010] Furthermore, the upper door panel is fixedly mounted on the upper half of the door frame, and the outer surface of the upper door panel is flush with the outer surface of the door frame; an appropriate gap is left between the sliding door and the upper door panel, and the sliding door slides up and down along the left and right slide rails through the sliders.

[0011] Furthermore, the upper and lower edges of the inner surface of the sliding door are respectively provided with an upper limit plate and a lower limit plate, which are respectively vertically arranged on the sliding door; when the sliding door moves upward to the maximum position, the upper limit plate contacts the upper frame, and when the sliding door moves downward to the maximum position, the lower limit plate contacts the lower frame. The upper limit plate and the lower limit plate limit the sliding door to prevent the slider from colliding with the upper frame or the lower frame.

[0012] Furthermore, the left and right slide rails have the same structure, including a connecting plate and a slide rail arranged on the connecting plate; the connecting plate is provided with multiple rivet holes and two through holes, the rivet holes are used for riveting to the left frame or the right frame through rivets, and the through holes are used for the latch to fix the sliding door when the sliding door moves upward or downward to the maximum position.

[0013] Furthermore, the slider includes a base, a slide groove arranged on one side of the base, and two connecting holes arranged on the other side of the base; the slide groove is adapted to the slideway, and the slider moves on the slideway through the slide groove; the slider is riveted to the sliding door through the connecting holes.

[0014] Beneficial effects of the utility model:

[0015] 1. The sliding lifting door for tank trucks of this utility model adopts the combination of sliders and slide rails. The sliders and slide rails have a high degree of fit, and the sliding door slides up and down smoothly, easily and labor-saving.

[0016] 2. In the sliding lifting door for tank trucks of the utility model, screws or rivets are used to connect the door frame and the steel frame of the operating room, the slider and the sliding door, and the slide rail and the door frame. The structure is simple, the assembly process is precise and controllable, the assembly deformation is small, and the sliding door is prevented from getting stuck.

[0017] 3. In the utility model, the left and right frames of the sliding lifting door for tank trucks no longer serve as tracks. The slide rails are separately installed on the left and right frames. When the slide rails are damaged during use, they are easy to replace.

[0018] 4. The slider and rail structure of the sliding lifting door for the tank truck of the utility model allows the operator to observe its operation more intuitively, and facilitates handling and maintenance when foreign objects or other situations cause the sliding door to get stuck or slide unsmoothly. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a structural diagram of an embodiment of a sliding lifting door for a tank truck of the utility model;

[0020] Figure 2 for Figure 1 AA section view;

[0021] Figure 3 This is a structural diagram of a slide rail in an embodiment of a sliding lifting door for a tank truck of the present invention;

[0022] Figure 4 for Figure 3 BB cross-sectional view;

[0023] Figure 5 This is a structural diagram of a slider in an embodiment of a sliding lifting door for a tank truck of the present invention;

[0024] Figure 6 for Figure 5 Top view of .

[0025] Figure Number:

[0026] 1-door frame, 2-upper door panel, 3-latch, 4-left slide rail, 5-right slide rail, 6-sliding door assembly, 7-upper frame, 8-lower frame, 9-left frame, 10-right frame, 11-sliding door, 12-handle, 13-slider, 14-connecting plate, 15-slide, 16-rivet hole, 17-through hole, 18-base, 19-slide groove, 20-connecting hole, 21-upper limit plate, 22-lower limit plate. DETAILED DESCRIPTION

[0027] The following will be combined with the accompanying drawings and embodiments to clearly and completely describe the technical solutions 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.

[0028] The present invention provides a sliding lifting door for a tank truck. Figures 1-6 As shown, it includes a door frame 1, an upper door panel 2, a latch 3, a left slide rail 4, a right slide rail 5 and a sliding door assembly 6.

[0029] The door frame comprises an upper side frame 7, a lower side frame 8, a left side frame 9 and a right side frame 10 which are riveted sequentially to the operating room frame.

[0030] The left slide rail 4 is fixed to the right side of the left frame 9 , and the right slide rail 5 is fixed to the left side of the right frame 10 .

[0031] The sliding door assembly 6 includes a sliding door 11, a handle 12 and a slider 13; the handle 12 is installed on the upper inner side of the sliding door 11; there are four sliders 13, which are installed at the four corners of the sliding door 11 to allow the sliding door 11 to slide up and down.

[0032] The latch 3 is installed on the left side or the right side of the sliding door 11. When the sliding door 11 moves upward or downward to the maximum position, the latch 3 extends to fix the sliding door 11.

[0033] The upper door panel 2 is fixedly installed on the upper half of the door frame 1, and the outer surface of the upper door panel 2 is flush with the outer surface of the door frame 1; an appropriate gap is left between the sliding door 11 and the upper door panel 2, and the sliding door 11 slides up and down along the left slide rail 4 and the right slide rail 5 through the slider 13.

[0034] Limiting plates may be provided on the upper and lower edges of the sliding door 11, respectively, and are disposed on the inner side of the sliding door 11. The slider 13 is mounted near the limiting plates; when the sliding door 11 moves upward or downward to its maximum position, the limiting plates contact the upper frame 7 or the lower frame 8, limiting the position of the sliding door 11 and preventing the slider 13 from colliding with the upper frame 7 or the lower frame 8.

[0035] The left slide rail 4 and the right slide rail 5 have the same structure, including a connecting plate 14 and a slide 15 arranged on the connecting plate 14; a plurality of rivet holes 16 and two through holes 17 are opened on the connecting plate 14, the rivet holes 16 are used to rivet the slide rail to the left frame 9 or the right frame 10 by rivets, and the through holes 17 are used for the latch 3 to fix the sliding door 11 when the sliding door 11 moves upward or downward to the maximum position.

[0036] The slider 13 includes a base 18, a slide groove 19 arranged on one side of the base 18, and two connecting holes 20 arranged on the other side of the base 18; the slide groove 19 is adapted to the slide 15, and the slider 13 moves on the slide 15 through the slide groove 19; the slider 13 is riveted to the sliding door 11 through the connecting holes 20.

Claims

1. A sliding lifting door for a tank truck, characterized by: It comprises a door frame (1), an upper door panel (2), a latch (3), a left slide rail (4), a right slide rail (5) and a sliding door assembly (6); The door frame comprises an upper frame (7), a lower frame (8), a left frame (9), and a right frame (10) which are sequentially mounted on the operating room frame; The left slide rail (4) is fixed to the right side of the left frame (9), and the right slide rail (5) is fixed to the left side of the right frame (10); The sliding door assembly (6) comprises a sliding door (11), a handle (12) and a slider (13); the handle (12) is mounted on the upper portion of the sliding door (11); there are four sliders (13) mounted at the four corners of the sliding door (11) to enable the sliding door (11) to slide up and down; The latch (3) is installed on the left side or the right side of the sliding door (11). When the sliding door (11) moves upward or downward to the maximum position, the latch (3) fixes the sliding door (11).

2. The sliding lifting door for a tank truck according to claim 1, characterized in that: The upper door panel (2) is fixedly mounted on the upper half of the door frame (1), and the outer surface of the upper door panel (2) is flush with the outer surface of the door frame (1); an appropriate gap is left between the sliding door (11) and the upper door panel (2), and the sliding door (11) slides up and down along the left slide rail (4) and the right slide rail (5) via the slider (13).

3. The sliding lifting door for a tank truck according to claim 1 or 2, characterized in that: An upper limit plate (21) and a lower limit plate (22) are respectively provided on the upper and lower edges of the inner surface of the sliding door (11). The upper limit plate (21) and the lower limit plate (22) are respectively arranged vertically on the sliding door (11); when the sliding door (11) moves upward to the maximum position, the upper limit plate (21) contacts the upper frame (7); when the sliding door (11) moves downward to the maximum position, the lower limit plate (22) contacts the lower frame (8). The upper limit plate (21) and the lower limit plate (22) limit the sliding door (11) to prevent the sliding blocks at the four corners of the sliding door (11) from colliding with the upper frame (7) or the lower frame (8).

4. The sliding lifting door for a tank truck according to claim 1 or 2, characterized in that: The left slide rail (4) and the right slide rail (5) have the same structure, comprising a connecting plate (14) and a slideway (15) arranged on the connecting plate (14); The connecting plate (14) is provided with a plurality of rivet holes (16) and two through holes (17). The rivet holes (16) are used for riveting to the left frame (9) or the right frame (10) through rivets. The through holes (17) are used for the latch (3) to fix the sliding door (11) when the sliding door (11) moves upward or downward to the maximum position.

5. The sliding lifting door for a tank truck according to claim 1 or 2, characterized in that: The slider (13) includes a base (18), a slide groove (19) arranged on one side of the base (18), and a connecting hole (20) arranged on the other side of the base (18); The slide groove (19) is adapted to the slideway (15), and the slider (13) moves on the slideway (15) through the slide groove (19); the slider (13) is riveted to the sliding door (11) through the connecting hole (20).

6. The sliding lifting door for a tank truck according to claim 5, characterized in that: There are two connecting holes (20).

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