A container internal support device and method

Abstract

This invention provides a container internal support device and method, belonging to the field of container technology. It includes a mobile chassis and a support mechanism, with the support mechanism fixed to the mobile chassis. The support mechanism includes a support frame, a top support plate, and two side support plates. The top support plate is located above the support frame, and the two side support plates are located on opposite sides of the support frame. Both the top and side support plates are fixedly connected to the support frame via support hinges. Transmission mechanisms are provided at the top and sides of the support frame, with their output ends connected to the top and side support plates respectively, driving the top and side support plates to extend and retract. This invention can reduce storage space usage and significantly improve the efficiency of foaming operations during container repair.

Description

Technical Field

[0001] This invention belongs to the field of container technology, and particularly relates to a container internal support device and method. Background Technology

[0002] Existing refrigerated containers use polyurethane foam to insulate the container walls. During use, the insulation layer is often damaged due to collisions or other factors. In such cases, localized foaming of the damaged areas is necessary to restore the container's insulation properties.

[0003] When performing small-area localized foaming of the insulation layer on the side walls of a container, the pressure generated by the foaming liquid can cause the side wall panels to bulge and deform. Therefore, a combination of external pressure and internal support must be used to clamp the container walls and keep them flat. In existing technology, there are dedicated external pressure holding devices available for the external pressure of the container walls. However, when supporting the internal walls, two sets of internal support devices are required, one for the inner walls on the sides and the other for the top of the container. The coexistence of two sets of frames not only occupies a lot of storage space, but also requires forklift assistance when loading and unloading the container, greatly increasing the difficulty and cost of the operation. Summary of the Invention

[0004] To address the shortcomings or deficiencies of existing technologies, this invention provides a container internal support device and method that can reduce storage space occupation and significantly improve the efficiency of foaming operations during container repair. To achieve the above objectives, the present invention adopts the following technical solution: In a first aspect, embodiments of the present invention provide a container internal support device and method, including a mobile chassis and a support mechanism. The support mechanism is fixed on the mobile chassis and includes a support frame, a top support plate, and two side support plates. The top support plate is located above the support frame, and the two side support plates are located on both sides of the support frame. The top support plate and the side support plates are fixedly connected to the support frame via support hinges. A transmission mechanism is provided at the top and both sides of the support frame. The output ends of the transmission mechanisms are connected to the top support plate and the side support plates respectively, driving the top support plate and the side support plates to perform telescopic movements.

[0005] Furthermore, the mobile chassis includes two walking mechanisms arranged side by side, with a set distance between the two walking mechanisms, and the front and rear ends of the two walking mechanisms are fixedly connected by connecting beams.

[0006] Furthermore, the walking mechanism includes a frame, with guide wheels rotatably connected to both the front and rear ends of the frame. Several support wheels are arranged side by side between the two guide wheels, and the support wheels are rotatably connected to the frame. A drive wheel is also rotatably connected to the upper middle part of the frame. Tracks are fitted on the outer sides of the guide wheels, support wheels, and drive wheels. Pressure rollers are rotatably connected to the frame on both sides of the drive wheel, and the track passes around the bottom of the pressure rollers.

[0007] Furthermore, a travel motor and a first reducer are fixedly connected to the side wall of the two opposing frames. The output shaft of the travel motor is connected to the input end of the first reducer, and the output end of the first reducer is connected to the central shaft of the drive wheel.

[0008] Furthermore, the support mechanism includes a top support frame and two side support frames. The two side support frames are arranged in parallel, and the top support frame is arranged horizontally and located directly above the mobile chassis. The tops of the two side support frames are connected through the top support frame, and the bottom ends of the two side support frames are fixedly connected to the connecting beam of the mobile chassis.

[0009] Furthermore, the supporting hinge includes a first hinge plate, a first connecting plate, a second hinge plate, and a second connecting plate, wherein one end of the first hinge plate and one end of the second hinge plate are rotatably connected, the other end of the first hinge plate and one end of the first connecting plate are rotatably connected, the first connecting plate is fixedly connected to the support plate by bolts, the other end of the second hinge plate is rotatably connected to the second connecting plate, and the second connecting plate is fixedly connected to the supporting frame by bolts.

[0010] Furthermore, both the top support frame and the side support frame are equipped with two transmission mechanisms. Each transmission mechanism includes a transmission motor, which is fixed in the middle of the top support frame and the side support frame. The output end of the transmission motor is fixedly connected to a second reducer, which has two output ends. Both ends of the top support frame and the side support frame are equipped with screw jacks, and the input end of the screw jack is connected to the output end of the second reducer through a transmission rod.

[0011] Furthermore, the top support plate and the side support plate are each provided with a plurality of connecting seats on the side near the support frame. The connecting seats are provided in correspondence with the screw jack, and the output shaft of the screw jack is hinged to the connecting seats.

[0012] Furthermore, an extension plate is detachably connected to the top of the side support plate. The length of the extension plate is the same as the width of the side support plate. Multiple connecting plates are arranged side by side at the bottom of the extension plate. Multiple connecting holes are opened at the top of the side support plate, and the multiple connecting holes are arranged one-to-one with the multiple connecting plates.

[0013] Secondly, embodiments of the present invention provide a container internal support method, utilizing a container internal support device as described above, comprising the following steps: Before use, place the inner support device on the lifting platform and transport it to the container using the lifting platform, ensuring that the container entrance faces the placement position of the inner support device. Adjust the height of the lifting platform to the same plane as the bottom of the container, start the mobile chassis, drive the internal support device to the set position inside the container, and ensure that the distance between the support plate and the two side walls of the container is the same. When foaming the container, the top support plate and the side support plates unfold and press against the top and side inner walls of the container respectively. During the foaming process, the pressure sensors on the side support plates and the top support plate can measure the foaming pressure of the inner wall of the container in real time to ensure the normal progress of the foaming operation. After the foaming process is completed, the side support plates and top support plate are folded into place and moved to the designated position on the platform of the lifting platform.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: To reduce space occupation, this invention features a support frame mounted on a mobile chassis, with movably connected support plates on the top and sides of the support frame. A transmission mechanism mounted on the support frame drives the support plates to extend and retract, thereby supporting the inner walls of the container. This eliminates the need for two sets of internal support devices, achieving independent support for the container's top interior and side inner walls, significantly reducing storage space occupation. Furthermore, the mobile chassis allows the support frame and support plates to move within the container without requiring a forklift to adjust the position of the internal support devices, greatly improving operational efficiency.

[0015] The drive motor drives the screw jack to push the support plate to extend and retract. With the pressure sensor fixed on the support plate, the foaming pressure of the inner wall of the container can be detected when supporting the container wall, thus ensuring the foaming effect.

[0016] By detachably connecting an extension plate to the top of the side support plate, the height of the side support plate can be adjusted when internally supporting containers of different heights, thereby improving the applicability of the internal support device. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the internal support device structure in Embodiment 1 of the present invention; Figure 2 This is a schematic diagram of the mobile chassis structure in Embodiment 1 of the present invention; Figure 3 This is a side sectional view of the walking mechanism in Embodiment 1 of the present invention; Figure 4 This is a schematic diagram of the support frame structure in Embodiment 1 of the present invention; Figure 5 This is a diagram showing the connection relationship between the top support frame and the top support plate in Embodiment 1 of the present invention; Figure 6 This is a schematic diagram of the supporting hinge structure in Embodiment 1 of the present invention; Figure 7 This is a schematic diagram of the transmission mechanism structure in Embodiment 1 of the present invention; Figure 8 This is a diagram showing the positional relationship between the internal support device and the lifting platform in Embodiment 2 of the present invention; The components include: 1. Mobile chassis; 110. Walking mechanism; 111. Frame; 112. Guide wheel; 113. Track roller; 114. Drive wheel; 115. Track; 116. Pressure roller; 117. Walking motor; 118. First reducer; 120. Connecting beam; 2. Support mechanism; 210. Top support frame; 211. Top support beam; 220. Side support frame; 221. Side support beam; 230. Connecting rod; 240. Reinforcing rod; 250. Fixed beam; 260. Top support plate; 261. Connecting seat; 270. Side support plate; 280. Support hinge; 281. First hinge plate; 282. First connecting plate; 283. Second hinge plate; 284. Second connecting plate; 290. Transmission mechanism; 291. Transmission motor; 292. Second reducer; 293. Screw jack; 294. Transmission rod. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] Example 1 A typical embodiment of the present invention, such as Figure 1 As shown, a container internal support device includes a mobile chassis 1 and a support mechanism 2. The support mechanism 2 is fixed on the mobile chassis 1. The mobile chassis 1 drives the support mechanism 2 into a set position inside the container, and the support mechanism 2 supports the container wall, thereby facilitating the foaming operation of the container inner wall.

[0020] Specifically, such as Figure 2 As shown, the mobile chassis 1 includes two walking mechanisms 110 arranged side by side, with a set distance between them. The front and rear ends of the two walking mechanisms 110 are fixedly connected by a connecting beam 120. The walking mechanisms 110 are tracked walking mechanisms, such as... Figure 3 As shown, the machine includes a frame 111. Guide wheels 112 are rotatably connected to the front and rear ends of the frame 111. Several support wheels 113 are arranged side by side between the two guide wheels 112. The support wheels 113 are rotatably connected to the frame 111. A drive wheel 114 is also rotatably connected to the upper middle part of the frame 111. Tracks 115 are fitted on the outer sides of the guide wheels 112, support wheels 113 and drive wheels 114.

[0021] Pressure rollers 116 are rotatably connected to the frame 111 on both sides of the drive wheel 114. The track 115 passes around the bottom of the pressure roller 116. By setting the pressure roller 116, the vibration of the track 115 can be reduced, the track 115 can be tensioned, and the smooth operation of the walking mechanism 110 can be ensured.

[0022] A walking motor 117 and a first reducer 118 are fixedly connected to the side wall of the two frames 111 facing each other. The output shaft of the walking motor 117 is connected to the input end of the first reducer 118, and the output end of the first reducer 118 is connected to the central shaft of the drive wheel 114. Thus, the walking motor 117 drives the track 115 to rotate, thereby driving the mobile chassis 1 to move.

[0023] It is known that the mobile chassis 1 is equipped with a variety of sensors, such as ultrasonic ranging sensors and photoelectric ranging sensors. The ultrasonic ranging sensors and photoelectric ranging sensors can detect the position of the inner support mechanism inside the container in real time, and can cooperate with the two traveling mechanisms 110 to center the inner support mechanism, so as to ensure the normal support of the support plate on both sides of the container's inner wall.

[0024] Support mechanism 2 includes a support frame and a support plate. The bottom end of the support frame is fixedly connected to the connecting beam 120 of the traveling mechanism 110. The support frame is an n-shaped frame structure, such as... Figure 4 As shown, it includes a top support frame 210 and two side support frames 220. The two side support frames 220 are arranged in parallel, and the top support frame 210 is arranged horizontally and located directly above the mobile chassis 1. The tops of the two side support frames 220 are connected through the top support frame 210, and the bottom ends of the two side support frames 220 are fixedly connected to the connecting beam 120 of the mobile chassis 1.

[0025] Specifically, the top support frame 210 includes two parallel top support beams 211, with the two ends of the two top support beams 211 fixedly connected by connecting rods 230. The side support frame 220 includes two parallel side support beams 221, with the top ends of the two side support beams 221 fixedly connected to the connecting rods 230, and the bottom ends of the two side support beams 221 fixedly connected to the two connecting beams 120 of the movable chassis 1, respectively.

[0026] To ensure the stability of the entire structure, multiple reinforcing rods 240 are fixedly connected between the top support frame 210 and the side support frame 220, as well as between the side support frame 220 and the connecting beam 120. Furthermore, fixed beams 250 are fixedly connected to the two side support frames 220. The two fixed beams 250 are symmetrically arranged between the two side support frames 220. Each fixed beam 250 is connected to the two side support beams 221 of its adjacent side support frame 220 through a bracket. The stability of the two side support beams 221 is ensured by the fixed beams 250, thereby ensuring the structural strength of the side support frame 220.

[0027] There are three support plates: a top support plate 260 located above the top support frame 210, and side support plates 270 located on opposite sides of the two side support frames 220, as shown below. Figure 5 As shown, the top support plate 260 and the side support plate 270 are connected to the top support frame 210 and the two side support frames 220 respectively through multiple support hinges 280. The top support frame 210 and the side support frames 220 are each equipped with a transmission mechanism 290. The output end of the transmission mechanism 290 is connected to the support plate, thereby driving the support plate away from or closer to the support frame.

[0028] like Figure 6 As shown, the supporting hinge 280 includes a first hinge plate 281, a first connecting plate 282, a second hinge plate 283, and a second connecting plate 284. One end of the first hinge plate 281 and one end of the second hinge plate 283 are rotatably connected, and the other end of the first hinge plate 281 is rotatably connected to one end of the first connecting plate 282. The first connecting plate 282 has multiple bolt holes and is fixedly connected to the support plate by bolts. The other end of the second hinge plate 283 is rotatably connected to the second connecting plate 284. The second connecting plate 284 has multiple bolt holes and is fixedly connected to the supporting frame by bolts.

[0029] Both the top support frame 210 and the side support frame 220 are equipped with two transmission mechanisms 290 to achieve multi-point support for the support plate, ensuring the stability of the support plate during movement and support. The transmission mechanisms 290 on the top support frame 210 and the side support frame 220 have the same structure; here, only the transmission mechanism 290 on the top support frame 210 will be described. Figure 7 As shown, the transmission mechanism 290 includes two transmission motors 291, which are fixed to the middle of the bottom surface of the two top support beams 211 respectively. The output end of the transmission motor 291 is fixedly connected to a second reducer 292. The second reducer 292 has two output ends, which are respectively set towards the two ends of the top support beam 211. Screw jacks 293 are fixed at both ends of the top support beam 211. The input end of the screw jack 293 is connected to the output end of the second reducer 292 through a transmission rod 294, so that the transmission motor 291 can simultaneously drive the screw jacks 293 at both ends of the top support beam 211 to move synchronously.

[0030] The output shaft of the screw jack 293 is perpendicular to the top support plate 260. A connecting seat 261 is provided at each of the four corners of the bottom surface of the top support plate 260. The output shaft of the screw jack 293 is hinged to the connecting seat 261 on the bottom surface of the top support plate 260. When the output shaft of the screw jack 293 moves in extension and retraction under the drive of the transmission motor 291, it can drive the top support plate 260 to move closer to or away from the top support frame 210, thereby supporting the container wall.

[0031] The side support plate 270 has an extension plate detachably connected to its top. The length of the extension plate is the same as the width of the side support plate 270. Multiple connecting plates are arranged side by side at the bottom of the extension plate, with the same spacing between adjacent connecting plates. The connecting plates are L-shaped. The top of the side support plate 270 has multiple connecting holes, which correspond one-to-one with the connecting plates. In use, the connecting plates can be inserted into the connecting holes, and the L-shaped structure of the connecting plates can be used to hook the bottom of the connecting holes, thereby achieving a detachable connection between the side support plate 270 and the extension plate. When providing internal support for containers of different heights, the height of the side support plate 270 can be adjusted by installing the extension plate, improving the applicability of the internal support device.

[0032] The support frame is also equipped with a proximity switch to limit the support plate when it is retracted. A pressure sensor is fixedly connected to the support plate to detect the pressure between the container wall and the support plate when supporting the container wall.

[0033] A controller is also installed on the side support frame 220. The controller is fixed between the two side support beams 221. The controller is electrically connected to the walking motor 117, the drive motor 291, the ultrasonic sensor, the proximity switch and the pressure sensor to realize the normal operation of the inner support device.

[0034] By installing a support frame on a mobile chassis, with movably connected support plates on the top and sides of the support frame, and driving the support plates to extend and retract via a transmission mechanism on the support frame, the inner walls of the container are supported. This eliminates the need for two sets of internal support devices to achieve independent support for the inner top and side walls of the container, significantly reducing storage space requirements. At the same time, the mobile chassis can move the support frame and support plates within the container without the need for a forklift to adjust the position of the internal support devices, greatly improving operational efficiency.

[0035] Example 2 This embodiment provides a method for internal support of a container, utilizing a container internal support device as described in Embodiment 1, including the following steps: Before use, such as Figure 8 As shown, place the inner support device on the lifting platform. The lifting platform can be a common hydraulic lifting platform on the market. Use the lifting platform to transport the inner support device to the container, ensuring that the container entrance faces the placement position of the inner support device. Adjust the height of the lifting platform to the same plane as the bottom of the container, start the mobile chassis, drive the internal support device to the set position inside the container, and ensure that the distance between the support plate and the two side walls of the container is the same. When foaming the container, the top support plate and the side support plates unfold and press against the top and side inner walls of the container respectively. During the foaming process, the pressure sensors on the side support plates and the top support plate can measure the foaming pressure of the inner wall of the container in real time to ensure the normal progress of the foaming operation. After the foaming process is completed, the side support plates and top support plate are folded into place and moved to the designated position on the platform of the lifting platform.

[0036] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A container internal support device, characterized in that, The device includes a mobile chassis and a support mechanism. The support mechanism is fixed to the mobile chassis and includes a support frame, a top support plate, and two side support plates. The top support plate is located above the support frame, and the two side support plates are located on both sides of the support frame. The top support plate and the side support plates are fixedly connected to the support frame through support hinges. The top and both sides of the support frame are provided with transmission mechanisms. The output ends of the transmission mechanisms are connected to the top support plate and the side support plates, respectively, to drive the top support plate and the side support plates to perform telescopic movements.

2. The container internal support device as described in claim 1, characterized in that, The mobile chassis includes two walking mechanisms arranged side by side, with a set distance between the two walking mechanisms, and the front and rear ends of the two walking mechanisms are fixedly connected by connecting beams.

3. A container internal support device as described in claim 2, characterized in that, The walking mechanism includes a frame, with guide wheels rotatably connected to the front and rear ends of the frame. Several support wheels are arranged side by side between the two guide wheels and are rotatably connected to the frame. A drive wheel is also rotatably connected to the upper middle part of the frame. Tracks are fitted on the outer sides of the guide wheels, support wheels, and drive wheels. Pressure rollers are rotatably connected to the frame on both sides of the drive wheel, and the track passes around the bottom of the pressure rollers.

4. A container internal support device as described in claim 3, characterized in that, A travel motor and a first reducer are fixedly connected to the side wall of the two frames facing each other. The output shaft of the travel motor is connected to the input end of the first reducer, and the output end of the first reducer is connected to the central shaft of the drive wheel.

5. A container internal support device as described in claim 2, characterized in that, The support mechanism includes a top support frame and two side support frames. The two side support frames are arranged in parallel, and the top support frame is arranged horizontally and located directly above the mobile chassis. The tops of the two side support frames are connected through the top support frame, and the bottom ends of the two side support frames are fixedly connected to the connecting beam of the mobile chassis.

6. A container internal support device as described in claim 1, characterized in that, The supporting hinge includes a first hinge plate, a first connecting plate, a second hinge plate, and a second connecting plate. One end of the first hinge plate and one end of the second hinge plate are rotatably connected, and the other end of the first hinge plate and one end of the first connecting plate are rotatably connected. The first connecting plate is fixedly connected to the support plate by bolts, and the other end of the second hinge plate is rotatably connected to the second connecting plate. The second connecting plate is fixedly connected to the supporting frame by bolts.

7. A container internal support device as described in claim 5, characterized in that, Both the top support frame and the side support frame are equipped with two transmission mechanisms. Each transmission mechanism includes a transmission motor, which is fixed in the middle of the top support frame and the side support frame. The output end of the transmission motor is fixedly connected to a second reducer, which has two output ends. Both ends of the top support frame and the side support frame are equipped with screw jacks, and the input end of the screw jack is connected to the output end of the second reducer through a transmission rod.

8. A container internal support device as described in claim 7, characterized in that, The top support plate and the side support plate are each provided with multiple connecting seats on one side near the support frame. The connecting seats are corresponding to the screw jack, and the output shaft of the screw jack is hinged to the connecting seat.

9. A container internal support device as described in claim 1, characterized in that, An extension plate is detachably connected to the top of the side support plate. The length of the extension plate is the same as the width of the side support plate. Multiple connecting plates are arranged side by side at the bottom of the extension plate. Multiple connecting holes are opened at the top of the side support plate, and the multiple connecting holes are arranged one-to-one with the multiple connecting plates.

10. A method for internal support of a container, utilizing a container internal support device as described in any one of claims 1-9, characterized in that, Includes the following steps: Before use, place the inner support device on the lifting platform and transport it to the container using the lifting platform, ensuring that the container entrance faces the placement position of the inner support device. Adjust the height of the lifting platform to the same plane as the bottom of the container, start the mobile chassis, drive the internal support device to the set position inside the container, and ensure that the distance between the support plate and the two side walls of the container is the same. When foaming the container, the top support plate and the side support plates unfold and press against the top and side inner walls of the container respectively. During the foaming process, the pressure sensors on the side support plates and the top support plate can measure the foaming pressure of the inner wall of the container in real time to ensure the normal progress of the foaming operation. After the foaming process is completed, the side support plates and top support plate are folded into place and moved to the designated position on the platform of the lifting platform.

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