A double-insurance safety sand core storage and transportation vehicle

Abstract

A double-safety sand core storage and transportation vehicle, belonging to the field of placement trolley technology, includes a base plate with movable wheels at the bottom. A side panel is fixedly installed on the left side of the upper surface of the base plate. Multiple shelves with supporting feet are rotatably installed on the right surface of the side panel. Hinges are integrally formed on both the front and rear surfaces of the side panel. Pneumatic support rods are rotatably installed between the hinges and the shelves. Multiple protective hooks and multiple support screws are installed on both the front and rear surfaces of the side panel. The right end of each protective hook has a beveled portion A, an arc-shaped portion B, and a lower groove C. The protective hook rests horizontally on the corresponding support screw. Hanging shafts are fixedly installed on both the front and rear surfaces of the shelves. This invention effectively avoids the situation where the shelves cannot maintain their fixed position after being flipped up due to the failure of the pneumatic support rods. Furthermore, fixing the shelves after they are flipped up requires no additional complex operations; simply flipping the shelves up normally is sufficient, making the operation simple and efficient.

Description

Technical Field

[0001] This utility model belongs to the field of placement trolley technology, specifically relating to a double-insurance safety sand core storage and transportation vehicle. Background Technology

[0002] In the production process of foundries, the use of sand cores is substantial, making their storage and transportation crucial tasks. Larger foundries typically have sand core storage facilities and conveyor lines; however, the storage and transportation costs are high. Most foundries simply place sand cores haphazardly, leading to chaotic management, inconvenient transportation, low production efficiency, and increased vulnerability to damage. Some foundries utilize transport vehicles for storing and transporting sand cores.

[0003] Patent searches revealed that, in the relevant field, an existing patent with publication number CN 205020755 U, entitled "A Sand Core Placement Trolley," while providing support when the tray is opened via hooks, requires manual adjustment of the hook position during actual operation to connect the bracket with the corresponding tray protrusion for support, resulting in inconvenient operation. Therefore, to address this operational inconvenience, a double-insurance safety sand core storage and transportation vehicle is proposed. Utility Model Content

[0004] In view of the shortcomings of the prior art described above, the purpose of this utility model is to provide a double-insurance safety sand core storage and transportation vehicle to solve the problem that the sand core placement trolley in the prior art has poor operation convenience.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A double-safety sand core storage and transportation vehicle includes a base plate with movable wheels at the bottom. A side plate is fixedly installed on the left side of the upper surface of the base plate. Multiple shelves with supporting feet are rotatably installed on the right side surface of the side plate. Hinges are integrally formed on the front and rear surfaces of the side plate. Pneumatic support rods are rotatably installed between the hinges and the shelves. Multiple protective hooks and multiple support screws are installed on the front and rear surfaces of the side plate. The protective hooks are rotatably connected to the side plate, and the right end of the protective hook is provided with a beveled part A, an arc-shaped part B, and a lower groove C. The support screws are fixedly connected to the side plate. The protective hooks are horizontally resting on the corresponding support screws. Hanging shafts are fixedly installed on the front and rear surfaces of the shelves. The lower groove C is hooked into the hanging shaft for fixing the shelf after it is flipped up.

[0007] In the above technical solution, support feet are fixedly installed at both the front and rear ends of the lower surface of the shelf, and the support feet are in contact with the upper surface of the lower shelf.

[0008] In the above technical solution, a layer of soft, high-temperature resistant fabric is fixedly installed on the upper surface of the layer plate, and the soft, high-temperature resistant fabric is aramid fiber fabric.

[0009] In the above technical solution, two side sleeves are fixedly installed on the front surface of the base plate, and a horizontal shaft is rotatably installed between the two side sleeves. A U-shaped handle is fixedly installed on the outer surface of the horizontal shaft, and torsion springs are sleeved on both the left and right sides of the outer surface of the horizontal shaft. The outer end of the torsion spring is snapped and fixed on the handle, and the inner end of the torsion spring is snapped and fixed on the front end of the base plate.

[0010] In the above technical solution, the moving wheels of the base plate include two omnidirectional casters disposed in front of the lower surface of the base plate and two directional casters disposed behind the lower surface of the base plate.

[0011] The double-insurance safety sand core storage and transportation vehicle of this utility model has the following advantages compared with the prior art:

[0012] This invention features a pneumatic support rod between the side panel and the shelf, along with a protective hook with a groove on its right end, and a hanging shaft on the shelf. During shelf flipping, the pneumatic support rod directly provides support, and as the shelf naturally flips upwards, the hanging shaft automatically engages with the groove of the protective hook, achieving dual positioning. This design effectively prevents the shelf from failing to maintain its fixed position after flipping due to pneumatic support rod failure. Fixing the shelf after flipping requires no additional complex operations; simply flipping the shelf upwards as usual is sufficient, making the operation simple and efficient. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the main structure of this utility model.

[0014] Figure 2 This is a schematic diagram of the right-side structure of this utility model.

[0015] Figure 3 This is a schematic diagram of the left-side structure of this utility model.

[0016] Figure 4 for Figure 1 Detailed images from the video.

[0017] Figure 5 This is a schematic diagram of the structure of the protective hook and the hook of this utility model when they are in contact.

[0018] Figures 1-5 The components include: 1. base plate; 2. side plate; 21. support screw; 3. shelf; 31. hanging shaft; 4. pneumatic support rod; 5. protective hook; 6. side sleeve; 7. horizontal shaft; 71. torsion spring; 8. handle; A. beveled part; B. arc part; C. lower groove. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] In this embodiment, front, back, left, right, top, and bottom are... Figure 1 Describe the reference plane. See [link / reference] Figures 1-5 This utility model provides a technical solution:

[0021] A double-insurance safety sand core storage and transportation vehicle, such as Figure 1 As shown, it includes a base plate 1 with movable wheels at the bottom. A side plate 2 is fixedly installed on the left side of the upper surface of the base plate 1 by welding or bolting. Multiple layer plates 3 are rotatably connected to the right surface of the side plate 2 via a rotating shaft. Both the base plate 1 and the layer plates 3 are used to store sand cores. When the two layer plates 3 are parallel, the lower surface supporting the stirring is attached to the upper surface of the lower layer plate 3 for support.

[0022] The front and rear surfaces of the side plate 2 are both provided with hinges extending to the right. The hinges are integrally formed with the side plate 2. A pneumatic support rod 4 is rotatably installed between the hinge and the corresponding shelf 3. The left end of the pneumatic support rod 4 is rotatably connected to the hinge, and the right end of the pneumatic support rod 4 is rotatably connected to the shelf 3. The pneumatic support rod 4 is used to support the shelf 3 at the corresponding position after it is rotated 80°.

[0023] Multiple protective hooks 5 are rotatably mounted on the front and rear surfaces of the side plate 2 via a pivot. The right end of each protective hook 5 has a beveled portion A, an arc portion B, and a lower groove C. Multiple support screws 21 for supporting the protective hooks 5 are welded to the front and rear surfaces of the side plate 2. When the protective hook 5 rests on the corresponding support screw 21, it is in a horizontal position. Hanging shafts 31 are welded to the front and rear surfaces of the shelf 3. When the shelf 3 is flipped upwards, as... Figure 5 As shown, during the process of lifting the shelf 3, the hanging shaft 31 contacts the right end inclined surface A of the protective hook 5, and the protective hook is lifted accordingly. When the hanging shaft 31 passes through the arc of the b end of the protective hook 5, the protective hook 5 falls freely. The lower groove c of the protective hook 5 is locked in the position of the hanging shaft 31, locking the position of the shelf 3 and preventing the gas pressure support rod 4 from failing and causing the shelf 3 to fall and injure people.

[0024] When the sand core on shelf 3 needs to be removed, the shelf 3 above it must be manually lifted to create operating space. After shelf 3 is manually lifted, the pneumatic support rod 4 supports it, preventing it from falling freely. Compared with existing technology, when shelf 3 is flipped, the pneumatic support rod 4 can freely extend to support it. Flipping shelf 3 does not require many steps to support and fix it. In addition, during the flipping process, the hanging shaft 31 on shelf 3 naturally screws into the lower hook groove of the protective hook 5, further positioning shelf 3 when it is opened. The positioning operation when shelf 3 is opened is simple, quick, and convenient to use.

[0025] Support feet are fixedly installed at both the front and rear ends of the lower surface of the shelf 3. The lower surface of the support feet is in contact with the upper surface of the lower shelf 3. By using the support feet to support the lower shelf 3, the load-bearing capacity of the shelf can be increased, the load can be shared at the transition end between the shelf 3 and the side plate 2, and the overall service life can be extended.

[0026] A layer of soft, high-temperature resistant fabric is fixedly installed on the upper surface of each shelf 3. This fabric is made of aramid fiber, which has excellent high-temperature resistance and can maintain stable physical properties in high-temperature environments. Its long-term operating temperature can reach over 200℃. It has high strength, good wear resistance, and a soft texture, which can prevent wear when the sand core is placed on the shelf 3 and ensure the quality of the sand core during storage.

[0027] In addition, two side sleeves 6 are welded and installed on the front surface of the base plate 1. A horizontal shaft 7 is rotatably installed between the two side sleeves 6. A U-shaped handle 8 is welded and fixed on the outer surface of the horizontal shaft 7. Torsion springs 71 are sleeved on both the left and right sides of the outer surface of the horizontal shaft 7. The outer end of the torsion spring 71 is snapped and fixed on the handle 8, and the inner end of the torsion spring 71 is snapped and fixed on the front end of the base plate 1. Under normal non-stressed conditions, the handle 8 is perpendicular to the base plate 1 under the action of the torsion spring 71, which facilitates the storage of the handle 8 and reduces the overall space occupied by the storage and transportation vehicle. When it is necessary to push the storage and transportation vehicle to move and change its position, manually press the handle 8 forward to tilt it to a suitable grip angle, and then push the storage and transportation vehicle to move.

[0028] The base plate 1 has two swivel casters located at the front of the lower surface of the base plate 1 and two fixed casters located at the rear of the lower surface of the base plate 1. By setting the fixed casters and swivel casters, the storage and transportation vehicle can be moved more flexibly and conveniently.

Claims

1. A double-safety sand core storage and transportation vehicle, comprising a base plate (1) with movable wheels at the bottom, characterized in that, A side plate (2) is fixedly installed on the left side of the upper surface of the base plate (1). A plurality of shelves (3) with supporting feet are rotatably installed on the right side of the side plate (2). The front and rear surfaces of the side plate (2) are integrally formed with hinges. A pneumatic support rod (4) is rotatably installed between the hinge and the shelf (3). Multiple protective hooks (5) and multiple support screws (21) are installed on the front and rear surfaces of the side plate (2). The protective hooks (5) are rotatably connected to the side plate (2). The right end of the protective hook (5) is provided with a sloping part A, an arc-shaped part B and a lower groove C. The support screws (21) are fixedly connected to the side plate (2). The protective hooks (5) are horizontally placed on the corresponding support screws (21). The front and rear surfaces of the shelf (3) are fixedly installed with hanging shafts (31). The lower groove C is hooked into the hanging shafts (31) for fixing the shelf (3) after it is flipped up.

2. The double-insurance safety sand core storage and transportation vehicle according to claim 1, characterized in that, Support plates are fixedly installed at both ends of the lower surface of the layer (3), and the support plates are attached to the upper surface of the lower layer (3).

3. The double-insurance safety sand core storage and transportation vehicle according to claim 2, characterized in that, A layer of soft, high-temperature resistant fabric is fixedly installed on the upper surface of the layer (3), and the soft, high-temperature resistant fabric is aramid fiber fabric.

4. The double-insurance safety sand core storage and transportation vehicle according to claim 2, characterized in that, Two side sleeves (6) are fixedly installed on the front surface of the base plate (1). A horizontal shaft (7) is rotatably installed between the two side sleeves (6). A U-shaped handle (8) is fixedly installed on the outer surface of the horizontal shaft (7). Torsion springs (71) are sleeved on both the left and right sides of the outer surface of the horizontal shaft (7). The outer end of the torsion spring (71) is snapped and fixed on the handle (8), and the inner end of the torsion spring (71) is snapped and fixed on the front end of the base plate (1).

5. The double-insurance safety sand core storage and transportation vehicle according to claim 1, characterized in that, The base plate (1) has two omnidirectional casters located in front of the lower surface of the base plate (1) and two directional casters located behind the lower surface of the base plate (1).

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