Safe sampling device for powder vehicle

Abstract

The utility model relates to a safe sampling device of a powder truck, which relates to the field of auxiliary sampling devices of material transport trucks, and comprises a support frame, a workbench, a connecting panel and a rain shelter, the workbench is arranged at the top end of the support frame, the rain shelter is arranged above the workbench, the connecting panel is rotatably connected to the workbench, and the connecting panel is rotatably connected to the support frame. A ladder stand and a protective cage for protecting the ladder stand are arranged on the supporting frame, the ladder stand and the protective cage are arranged on the side, away from the connecting panel, of the supporting frame, a guardrail is arranged on the workbench, a safety rope is connected to the guardrail, an electric hoist is arranged on the side, away from the ladder stand, of the rain shelter, and the electric hoist is connected to the protective cage. A through hole capable of being connected with the electric hoist is formed in the side, away from the crawling ladder, of the connecting panel, and lifting switches electrically connected with a motor of the electric hoist are arranged on the supporting frame and the guardrail. The safety device is arranged, effective protection is provided in the high-altitude operation process, and the effect of preventing accidental falling is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of auxiliary sampling devices for material transport vehicles, in particular to a safe sampling device for powder vehicle. Background Art

[0002] At present, conventional powder transport truck sampling is done by climbing the ladder on the side of the powder tank truck to the top of the tank for sampling operations. However, the height of the transport truck is more than two meters, and the sampling operation on the tank top is an aerial operation without protective measures. In actual operation, the ladder has no protective mechanism, and the climbing process is dangerous, especially when the material is taken and the ladder is used to go down the ladder, which is even more dangerous. There are obvious safety hazards in the entire sampling process.

[0003] The Chinese utility model patent with announcement number CN202013286U discloses an auxiliary sampling device for powdered raw materials in a concrete mixing station, which includes a workbench with stairs for sampling personnel to take samples, the edge of the workbench is provided with a hinge, a connecting panel that can rotate with the hinge is connected to the hinge, and a sample transport device, a pulley block and a rainproof canopy fixed on a support frame are arranged on the workbench, and the connecting panel is a steel plate, one side of which is connected to the hinge, and the other side is a movable end, which can be flipped around the hinge axis and rest on the top of the tank truck. When the powder transport vehicle stops at the sampling location, the sampler passes through the stairs through the sampling door to reach the sampling workbench, adjusts the connecting panel so that the connecting panel is close to the top of the powdered raw material transport vehicle, and the sampler goes through the connecting panel to the top feed port of the powdered raw material transport vehicle to take samples, and then transports the sample to the ground through the pulley block to complete the sampling operation.

[0004] The above-mentioned existing technical solutions have the following defects: the operator climbs onto the top of the transport vehicle through the connection panel to take samples, and there are no protective measures during the operation, which poses a relatively large safety hazard. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model aims to provide a safe sampling device for a powder vehicle which has a simple structure and higher safety performance.

[0006] The above practical invention object of the utility model is achieved through the following technical solutions:

[0007] A safe sampling device for a powder truck comprises a support frame, a workbench, a connecting panel and a canopy, wherein the workbench is arranged at the top of the support frame, the canopy is arranged above the workbench, the connecting panel is rotatably connected to the workbench, a ladder and a protective cage for protecting the ladder are arranged on the support frame, the ladder and the protective cage are arranged on the side of the support frame away from the connecting panel, a guardrail is arranged on the workbench, a safety rope is connected to the guardrail, an electric hoist is arranged on the side of the canopy away from the ladder, a through hole for connecting the electric hoist is arranged on the side of the connecting panel away from the ladder, and a lifting switch electrically connected to the motor of the electric hoist is arranged on the support frame and the guardrail.

[0008] By adopting the above technical solution, the sampling personnel are tied with a safety rope during operation, and the sampling process is protected. When the connection panel is opened, it is connected by an electric hoist to provide tension, ensuring that the working position of the connection panel is relatively fixed, reducing the risk of unsafe accidents caused by accidental movement of the connection panel. At the same time, after the operation is completed, the connection panel can be pulled to a vertical state by an electric hoist so that the connection panel acts as a guardrail to further improve the safety performance of the device. After the sampling operation is completed, the electric hoist is also used as a lifting device to lift the sampled material to the ground to ensure that the operator has no additional burden when going down the ladder. The protective cage is set to provide protection during the process of climbing up and down the ladder. The composition of the entire device fully guarantees the operating safety of the operator. The device structure is relatively simple, and the production and assembly are simple, time-saving, and space-saving.

[0009] In a preferred example, the utility model can be further configured as follows: a hanging ring for a safety rope to pass through is provided on the side of the connection panel away from the ladder.

[0010] By adopting the above technical solution, the connection panel is fixed by the safety rope in the vertical position, so that during the sampling operation, the operator needs to follow the sequence of hanging the electric hoist hook to the through hole, untying the safety rope tied to the hanging ring and tying it to the operator, and lowering the operation panel, thereby reducing the possibility of unsafe accidents caused by insufficient safety awareness of the operator.

[0011] In a preferred example, the utility model can be further configured as follows: the lifting switches are divided into two groups, one group of lifting switches is arranged on the guardrail close to the connecting panel, and the other group of lifting switches is arranged below the support frame away from the ladder.

[0012] By adopting the above technical solution, after the electric hoist lowers the sample, the chain and hook of the electric hoist can be retracted on the ground to prevent the chain and hook from hanging in the near-ground space and affecting the passage of people and vehicles.

[0013] In a preferred example, the present invention can be further configured as follows: the surface of the connection panel is provided with anti-slip textures.

[0014] By adopting the above technical solution, the provision of the anti-slip texture makes it difficult for the operator to slip when operating on the connection panel, thereby reducing the risk of the operator accidentally falling.

[0015] In a preferred example, the utility model can be further configured as follows: a tiltable support foot rotatably connected to the support frame is provided on one side of the support frame close to the connection panel, and the tiltable support foot is composed of a telescopic rod and a support seat rotatably connected to the telescopic rod.

[0016] By adopting the above technical solution, when sampling from some small tank trucks, the connection panel cannot be overlapped on the top of the tank truck. When the entire device is supported by the support frame, a tiltable support foot is used for auxiliary support. By adjusting the length of the telescopic rod and setting a suitable tilt angle, it is ensured that the entire sampling device will not tilt due to the shift of the center of gravity during the operator's operation.

[0017] In a preferred example, the utility model can be further configured as follows: support feet and a group of parallel cross bars are provided at the bottom of the support frame, two groups of support casters are provided on the cross bars, and the support casters include a group of fixed wheels and a group of universal wheels. Every two support casters are connected to a cross bar, and the universal wheels are arranged on the side close to the ladder.

[0018] By adopting the above technical solution, the supporting feet provide stable support for the entire device during operation, and the retractable supporting casters provide more usable environments for the device, so that the device can be moved when needed and can be retracted after the movement is completed, avoiding unstable support caused by using only casters for support.

[0019] In a preferred example, the utility model can be further configured as follows: the cross bar is rotatably connected to the support frame via a hydraulic hinge.

[0020] By adopting the above technical solution, the hydraulic hinge ensures that the support frame has sufficient supporting force, and also prevents the casters from being retracted when slightly bumped or jolted during movement.

[0021] In a preferred example, the utility model can be further configured as follows: the protective cage includes a cage ring and a cage column, and the cage ring is detachably connected to the cage column.

[0022] By adopting the above technical solution, each part of the protective cage can be produced independently, which is convenient for transportation and can be installed on site, which is easy to operate. At the same time, if any part of the protective cage has any defects such as rust or deformation that affect the safety of use after a period of use, it can be replaced separately.

[0023] In a preferred example, the utility model can be further configured as follows: a mounting hole is provided on the cage ring, a threaded hole corresponding to the mounting hole is provided on the support frame, and bolts are provided through the mounting hole and the threaded hole.

[0024] By adopting the above technical solution, the detachable design not only facilitates the installation of the entire protective cage, but also allows the protective cage to be disassembled for maintenance and storage when the ladder is not in use, which is beneficial to the safety of the device.

[0025] In summary, the utility model includes at least one of the following beneficial technical effects:

[0026] 1. The connection panel is used as both an extended workbench and a guardrail. A safety rope is provided to provide protection for the sampling process and to fix the connection panel when it acts as a guardrail. The electric hoist provides tension for the connection panel and serves as a sample conveying facility. The device structure is simplified while ensuring the safety performance of the device.

[0027] 2. The hanging ring and through hole are set to make the steps of using the device interlocked, reducing the possibility of unsafe accidents caused by insufficient safety awareness of operators;

[0028] 3. The tiltable support feet and retractable support pulleys ensure the safety of the device and expand the scope of use of the device;

[0029] 4. The detachable protective cage is convenient for installation, replacement and maintenance, saving manpower and cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a structural schematic diagram of a specific implementation method of the safe sampling device for powder truck of the utility model;

[0031] Figure 2 It is a schematic structural diagram of another perspective of the safety sampling device for powder truck of the utility model, which is intended to show the connection structure between the connection panel and the workbench;

[0032] Figure 3 yes Figure 1 A partial enlarged schematic diagram of the tiltable support foot;

[0033] Figure 4 It is a schematic diagram of the structure of the retractable supporting casters of the safe sampling device for powder material vehicle of the utility model;

[0034] Figure 5 yes Figure 2 A partial enlarged schematic diagram of the detachable connection between the middle support frame and the protective cage.

[0035] In the figure, 1. support frame; 2. workbench; 3. connecting panel; 4. canopy; 5. ladder; 6. protective cage; 61. cage ring; 62. cage column; 7. guardrail; 8. safety rope; 9. electric hoist; 10. through hole; 11. lifting switch; 12. hanging ring; 13. anti-slip texture; 14. tiltable support foot; 141. telescopic rod; 142. support seat; 15. support foot; 16. support caster; 161. fixed wheel; 162. universal wheel; 17. cross bar; 18. hydraulic hinge; 611. mounting hole; 19. threaded hole; 20. bolt. DETAILED DESCRIPTION

[0036] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0037] Reference Figure 1 and Figure 2 , which is a powder truck safety sampling device disclosed in the utility model, including a support frame 1, a workbench 2, a connecting panel 3 and a canopy 4. The workbench 2 is welded to the top of the support frame 1, and the canopy 4 is welded above the workbench 2. The connecting panel 3 is rotatably connected to the workbench 2. The surface of the connecting panel 3 is integrally provided with anti-slip patterns 13. When the connecting panel 3 is laid flat, it acts as an extended workbench 2, and when it is erected, it serves as a protective plate for the workbench 2 to ensure the safety of the working environment; the support frame 1 includes a ladder 5 installed on the side away from the connecting panel 3. The setting of the ladder 5 saves the space occupied by the device. A protective cage 6 is detachably provided on the middle and upper part of the side of the support frame 1 on which the ladder 5 is installed. When in use, the workbench 2 is raised and lowered by the ladder 5, and the protective cage 6 provides a protective cage for the climbing process. Safety protection also makes installation and maintenance more convenient; a guardrail 7 is arranged on the workbench 2, and a safety rope 8 is connected to the guardrail 7. The guardrail 7 provides safety protection for operations on the workbench 2, and the safety rope 8 provides safety protection for operations on the connecting panel 3 and the tank body of the powder truck; an electric hoist 9 is arranged on the side of the awning 4 away from the ladder 5, and the electric hoist 9 is respectively provided with a group of lifting switches 11 on the guardrail 7 on one side of the connecting panel 3 and under the support frame 1 on the side away from the ladder 5. A through hole 10 for connecting the electric hoist 9 is provided on one side of the front end of the connecting panel 3, and a hook for passing the safety rope 8 is provided on the other side; the support frame 1 is also connected with a supporting foot 15, a retractable supporting caster 16 connected by a cross bar 17, and a tiltable supporting foot 14.

[0038] To further explain the structure of the powder truck safety sampling device, refer to Figure 2 In this embodiment, the connection panel 3 and the workbench 2 are connected by hinges, and are supplemented by hydraulic hinges 18. The hydraulic hinges 18 are arranged on both sides of the upper surface of the connection panel 3 and the workbench 2 near the guardrail 7. Compared with other rotating connection methods, the hydraulic hinges 18 are more durable, provide buffering when in use, can reduce the collision between the components, and increase the service life of the device. Any other method is used to ensure that the connection panel 3 and the workbench 2 are rotatably connected.

[0039] To further improve the stability of the device during use, refer to Figure 3 A tiltable support foot 15 rotatably connected to the support frame 1 is arranged in the middle of the cross bar 17 near the connecting panel 3 in the middle of the support frame 1. The tiltable support foot 15 is composed of a telescopic rod 141 and a support seat 142 rotatably connected to the telescopic rod 141. The telescopic rod 141 is composed of a hollow outer rod and an inner rod embedded in the outer rod. The inner rod can slide axially in the outer rod. A spring sheet is arranged on the outer wall of the top of the inner rod. A convex block is arranged on the spring sheet. The outer rod is provided with a clamping hole corresponding to the convex block. The inner rod can be stretched to a suitable position and the convex block can be clamped into the clamping hole to lock it. By adjusting the length of the telescopic rod 141 and the support angle, a more stable support can be provided for the entire device, ensuring that the entire sampling device will not tilt due to the offset of the center of gravity.

[0040] In order to further ensure the safety of the device and improve the utilization rate of the device and the site, refer to Figure 4 Four supporting feet 15 are arranged at the bottom of the support frame 1, and the supporting feet 15 provide stable support for the entire device during operation; a cross bar 17 is arranged on one side of the ladder 5 and one side of the connecting panel 3 at the bottom of the support frame 1, and the cross bar 17 is rotatably connected to the support frame 1 through a hydraulic hinge 18 fixed by bolts, and supporting casters 16 are connected to the cross bars 17 on both sides, wherein the cross bar 17 on one side of the ladder 5 is provided with two universal wheels 162, and the cross bar 17 on one side of the connecting panel 3 is provided with two fixed wheels 161, so that the device can be moved when needed, and can be folded up after the movement is completed, so as to avoid unstable support caused by using only the supporting casters 16, and provide more usable environments for the device. When the device is in daily use, the supporting casters 16 connected to the cross bar 17 are in a suspended position relatively perpendicular to the supporting feet 15, and the device is supported by the supporting feet 15; when the device needs to be moved, the cross bar 17 is stepped on, and the supporting frame 1 is pulled to switch the two parts of the hydraulic hinge 18 to a mutually perpendicular state, that is, the device is supported by the supporting casters 16 at this time, and the supporting casters 16 can be folded after the device is pulled to the required position, which is convenient to use.

[0041] In order to further improve the safety performance of the device and reduce the difficulty of device installation, refer to Figure 5 The protective cage 6 is composed of a cage ring 61 and a cage column 62. Each cage ring 61 is provided with four through holes for the cage column 62 to pass through, so that the cage ring 61 and the cage column 62 can be detachably connected. Each part of the protective cage 6 can be replaced separately when any defects that affect the safety of use, such as corrosion and deformation, occur. The cage ring 61 is also provided with a mounting hole 611 at the connection part with the support frame 1. The support frame 1 is provided with a corresponding threaded hole 19. The mounting hole 611 and the threaded hole 19 are detachably connected by a bolt 20. When the ladder 5 is not in use, the protective cage 6 can be disassembled for maintenance and storage.

[0042] The implementation principle of this embodiment is as follows: after the powder truck arrives at the required sampling position, the sampling personnel climb up the workbench 2 along the ladder 5, first connect the hook of the electric hoist 9 to the through hole 10 of the connection panel 3, then untie the safety rope 8, tie it to the operator, open the connection panel 3, operate the lifting switch 11 of the electric hoist 9 located on the guardrail 7, adjust the hook position of the electric hoist 9 until the connection panel 3 is overlapped on the tank body of the powder truck or the connection panel 3 is level with the workbench 2, and perform the sampling operation. After the sampling is completed, adjust the electric hoist 9, pull the connection panel 3 vertically, untie the safety rope 8 on the operator, tighten the guardrail 7 and the hanging ring 12 through the safety rope 8, remove the hoist hook, hang the sample on the hook, use the electric hoist 9 to lift the sample to a position where the operator can take it while standing on the ground, and finally the operator goes down the ladder 5, takes the sample, and operates the switch of the electric hoist 9 located at the bottom of the support frame 1 to retract the hook. If the powder truck to be sampled is a small powder truck and the height of the tank top from the ground is relatively low, it is also necessary to stretch the telescopic rod 141 before sampling begins, adjust the tilt support, and retract it after sampling is completed.

[0043] The embodiments of this specific implementation method are all preferred embodiments of the utility model, and are not intended to limit the protection scope of the utility model. Therefore, all equivalent changes made based on the structure, shape, and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A powder vehicle safety sampling device, comprising a support frame (1), a workbench (2), a connecting panel (3) and a rain shelter (4), wherein the workbench (2) is arranged at the top of the support frame (1), the rain shelter (4) is arranged above the workbench (2), and the connecting panel (3) is rotatably connected to the workbench (2), characterized in that: The support frame (1) is provided with a ladder (5) and a protective cage (6) for protecting the ladder (5); the ladder (5) and the protective cage (6) are arranged on the side of the support frame (1) away from the connection panel (3); a guardrail (7) is arranged on the workbench (2); a safety rope (8) is connected to the guardrail (7); an electric hoist (9) is arranged on the side of the awning (4) away from the ladder (5); a through hole (10) for connecting the electric hoist (9) is provided on the side of the connection panel (3) away from the ladder (5); and a lifting switch (11) electrically connected to a motor of the electric hoist (9) is provided on both the support frame (1) and the guardrail (7).

2. The powder vehicle safety sampling device according to claim 1 is characterized in that: A hanging ring (12) for a safety rope (8) to pass through is arranged on the side of the connection panel (3) away from the ladder (5).

3. The powder vehicle safety sampling device according to claim 1 is characterized in that: The lifting switches (11) are divided into two groups. One group of the lifting switches (11) is arranged on the guardrail (7) close to the side of the connection panel (3), and the other group of the lifting switches (11) is arranged below the side of the support frame (1) away from the ladder (5).

4. The powder vehicle safety sampling device according to claim 1 is characterized in that: The surface of the connection panel (3) is provided with anti-slip textures (13).

5. The powder vehicle safety sampling device according to claim 1 is characterized in that: A tiltable support foot (14) rotatably connected to the support frame (1) is provided on one side of the support frame (1) close to the connection panel (3); the tiltable support foot (14) is composed of a telescopic rod (141) and a support seat (142) rotatably connected to the telescopic rod (141).

6. The powder vehicle safety sampling device according to claim 1 is characterized in that: The bottom of the support frame (1) is provided with a support foot (15) and a group of parallel cross bars (17); the cross bars (17) are provided with two groups of support casters (16); the support casters (16) include a group of fixed wheels (161) and a group of universal wheels (162); every two support casters (16) are connected to one cross bar (17); and the universal wheels (162) are provided on a side close to the ladder (5).

7. The powder vehicle safety sampling device according to claim 6 is characterized in that: The cross bar (17) is rotatably connected to the support frame (1) via a hydraulic hinge (18).

8. The powder vehicle safety sampling device according to claim 1 is characterized in that: The protective cage (6) comprises a cage ring (61) and a cage column (62), and the cage ring (61) and the cage column (62) are detachably connected.

9. The powder vehicle safety sampling device according to claim 8, characterized in that: The cage ring (61) is provided with a mounting hole (611), the support frame (1) is provided with a threaded hole (19) corresponding to the mounting hole (611), and a bolt (20) is provided through the mounting hole (611) and the threaded hole (19).

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