Limiting assembly of medical waste turnover box tray

Abstract

The utility model provides a medical waste pass box tray limit component, including fixed sleeve, spring and movable shaft, the circumferential surface of fixed sleeve is provided with guide groove, the movable shaft is provided with limit clamp plate and guide shaft, the movable shaft is arranged in fixed sleeve, and the part of the movable shaft that is equipped with limit clamp plate extends out of fixed sleeve, and the guide shaft is provided with the limit clamp plate. And the guide shaft is in sliding fit with the guide groove and is used for enabling the movable shaft to synchronously rotate when the movable shaft axially moves. The limiting assembly has the advantages that the structure is simple, and it can be guaranteed that the trays cannot move when the turnover boxes are stacked.

Description

Technical Field

[0001] The utility model mainly relates to the technical field related to the treatment of medical turnover boxes, in particular to a limiting component of a medical waste turnover box tray. Background Art

[0002] According to national standards, medical waste needs to be placed in turnover boxes after it is generated; in remote areas, such as the northwest, in cities with large geographical areas, since the centralized medical waste disposal facilities are far away from the towns and villages, the daily transportation fee for collecting medical waste is high, so it is necessary to collect the medical waste of a county and temporarily store it. After reaching a certain amount or reaching the maximum temporary storage time required by the regulations, it will be transported to the centralized disposal center for treatment. Currently, medical waste turnover boxes (hereinafter referred to as turnover boxes) are transported to the medical waste temporary storage center by transfer vehicles, and the turnover boxes are manually moved down and stacked on pallets. Each pallet is stacked with 16 turnover boxes. After stacking, the pallets are lifted and transported to the cold storage by the jacking AGV to complete the warehousing process. The outbound process is the opposite of the warehousing process.

[0003] When manually stacking turnover boxes on pallets, due to the heavy turnover boxes, high stacking, inertia of the turnover boxes when stacking and many other factors, the pallet can easily move horizontally and move out of its original position. When the AGV lifts it for transportation again, it will inevitably be misaligned. Long-term accumulation of errors will make the system unable to operate safely, and the pallet must be limited. This design is to design a simple and reliable pallet limit device. Utility Model Content

[0004] In order to solve the deficiencies of the current technology, the utility model combines the existing technology and, based on practical application, provides a limiting component for a medical waste turnover box pallet, which has the advantages of simple structure and can ensure that the pallet will not shift when the turnover boxes are stacked.

[0005] The technical design of the utility model is as follows:

[0006] A limiting assembly for a medical waste turnover box pallet comprises a fixed sleeve, a spring and a movable shaft, wherein a guide groove is arranged on the circumferential surface of the fixed sleeve, a limiting clamping plate and a guide shaft are arranged on the movable shaft, the movable shaft is arranged in the fixed sleeve and the portion on which the limiting clamping plate is installed extends out of the fixed sleeve, and the guide shaft is slidably matched with the guide groove to enable the movable shaft to rotate synchronously when the movable shaft moves axially.

[0007] Furthermore, one end of the limit clamping plate is fixed on the circumferential surface of the movable shaft, and the other end has a clamping portion that cooperates with the tray support leg.

[0008] Furthermore, the spring is arranged in the fixing sleeve and is located at the bottom of the movable shaft.

[0009] Furthermore, an opening is provided at the bottom of the movable shaft, and the upper part of the spring is located in the opening.

[0010] Furthermore, the guide shaft is arranged on the circumferential surface of the movable shaft, and the axes of the guide shaft and the movable shaft are perpendicular to each other.

[0011] Furthermore, the guide groove includes an inclined groove portion and a straight groove portion, the inclined groove portion is inclined, and the straight groove portion is perpendicular to the ground. When the guide shaft moves from the inclined groove portion to the straight groove portion, the movable shaft rotates 90°.

[0012] Furthermore, the fixing sleeve is provided with an expansion bolt hole.

[0013] Furthermore, the tray has four legs, and a pressure plate is arranged on the legs.

[0014] Furthermore, at least two of the limiting components are arranged diagonally.

[0015] Beneficial effects of the utility model:

[0016] 1. The utility model can be used for limiting the position of turnover box pallets. When the pallet is pressed down, the pallet can be directly locked, and the pallet can be automatically reset when it is moved out. The limiting mechanism is driven by the weight of the pallet itself, and does not use compressed gas, power supply, hydraulic power and other power. It does not require control and runs automatically. It is simple, economical and reliable.

[0017] 2. Compared with fixed limiting methods (such as pit limiting, dead stop, and direct limiting of pallet square steel pipes), it has higher reliability: If the AGV and pallet are misaligned during transportation, the pallet square steel pipe may not be able to enter the fixed limiting method after the AGV is in place. However, in this design, during the falling process, the limiting plate can drive the dislocated pallet back to its original position, with a higher fault tolerance rate.

[0018] 3. Compared with the fixed limiting methods (such as pit limiting, dead stop, and directly limiting the pallet square steel pipe), the AGV lifting height has almost no effect on this design; in order to make the pallet escape from the fixed limiting, the AGV needs to lift the pallet to a certain height before it can smoothly leave the fixed limiting, that is, the AGV lifting stroke is divided into three parts: the gap between the lifting mechanism and the pallet when the AGV enters under the pallet, the height of the fixed limiting and the safe distance between the bottom of the pallet and the highest point of the fixed limiting when lifting to the upper position. If the AGV lifting stroke is small, the requirements for each component in the system are high and the fault tolerance rate is low; this design divides the AGV lifting stroke into two parts: the downward stroke of the limiting mechanism and the safe distance between the pallet pressure plate and the top of the rotating positioning mechanism, which has a higher fault tolerance rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Attached Figure 1 This is a schematic diagram of the overall structure of the utility model (limiting card clamping state).

[0020] Attached Figure 2This is a schematic diagram of the overall structure of the utility model (limiting card is released).

[0021] Attached Figure 3 It is a schematic diagram of the bottom structure of the utility model.

[0022] Attached Figure 4 It is a schematic diagram of the structure of the movable axis of the utility model.

[0023] Attached Figure 5 It is a structural schematic diagram of the fixing sleeve of the utility model.

[0024] Attached Figure 6 This is a schematic diagram of the utility model in use.

[0025] Attached Figure 7 This is a detailed diagram of the use status of the utility model.

[0026] Numbers shown in the figure:

[0027] 1. Fixed sleeve; 2. Movable shaft; 3. Limiting clamp; 4. Guide groove; 5. Guide shaft; 6. Expansion bolt; 7. Spring; 8. Opening; 9. Connecting part; 10. Clamping part; 11. Expansion bolt hole; 12. Oblique groove part; 13. Straight groove part; 14. Pallet; 15. Support leg; 16. Press plate; 17. Limiting assembly; 18. Turnover box; 19. AGV trolley. DETAILED DESCRIPTION

[0028] The utility model is further described in conjunction with the accompanying drawings and specific embodiments. It should be understood that these embodiments are only used to illustrate the utility model and are not used to limit the scope of the utility model. In addition, it should be understood that after reading the content taught by the utility model, those skilled in the art can make various changes or modifications to the utility model, and these equivalent forms also fall within the scope defined by this application.

[0029] This embodiment provides a limit assembly for a medical waste turnover box tray. The limit assembly 17 is mainly fixed on the ground for use. Figure 6 as well as Figure 7 As shown, the limit assembly 17 is mainly used for limiting the position of the pallet 14. The pallet 14 has four legs 15, and a pressure plate 16 is correspondingly arranged on each leg 15. Two groups of the limit assembly 17 can be used at the same time, and the two groups are relatively arranged according to the corresponding positions of the legs 15. After the AGV trolley 19 moves the pallet 14 to the set position, when the pallet 14 falls, the limit assembly 17 below is pressed down by the pressure plate 16, and the limit assembly 17 automatically locks the legs 15 to prevent the pallet 14 from shifting when the turnover box 18 is stacked. When the turnover box 18 needs to be transferred, the AGV trolley 19 lifts the pallet 14, and the limit assembly 17 automatically releases the limit.

[0030] In this embodiment, the limiting assembly 17 mainly includes a fixed sleeve 1, a spring 7 and a movable shaft 2, wherein the movable shaft 2 is provided with a limiting clamping plate 3 and a guide shaft 5.

[0031] There are two expansion bolt holes 11 at the bottom of the fixing sleeve 1, so that the entire limit assembly 17 can be fixed to the ground through the expansion bolts 6. There is a guide groove 4 on the side of the fixing sleeve 1, and the guide groove 4 includes an inclined groove part 12 and a straight groove part 13. The guide shaft 5 on the movable shaft 2 can move along the guide groove 4. When the guide shaft 5 moves from the upper position to the lower position in the guide groove 4, the movable shaft 2 rotates exactly 90 degrees; the lower part of the guide groove 4 is a straight groove part 13 perpendicular to the ground direction, which can prevent the guide shaft 5, i.e., the movable shaft 2, from rotating after it is in place.

[0032] There are a limit clamp 3 and a guide shaft 5 on the movable shaft 2, which are rigidly connected. The connecting portion 9 at one end of the limit clamp 3 is fixedly connected to the circumferential surface of the movable shaft 2, and the clamping portion 10 at the other end can be clamped onto the support leg 15 of the tray 14 when the movable shaft 2 rotates.

[0033] The spring 7 is a compression spring, the upper part of which is placed in the opening 8 at the bottom of the movable shaft 2, and the lower part is supported on the ground. When there is no object above the movable shaft 2, the movable shaft 2 can be pushed to the upper position.

[0034] The principle of the limit assembly 17 of the utility model is as follows:

[0035] Initial state: the movable shaft 2 is in the upper position, and the limit clamping plate 3 is on one side, which does not affect the entry and exit of the tray 14.

[0036] After the AGV trolley 19 is in place, the tray 14 begins to fall, and the pressure plate 16 on the tray 14 presses down the movable shaft 2, and the movable shaft 2 moves downward along the fixed sleeve 1. At the same time, the guide shaft 5 moves from the upper position to the lower position in the guide groove 4 of the fixed sleeve 1, and the movable shaft 2 starts to rotate synchronously, and the movable shaft 2 drives the limit card plate 3 to synchronously move downward horizontally and inwardly.

[0037] End state: the tray 14 falls to the ground, the movable shaft 2 completely falls to the lowest position and rotates 90°, and the limiting clamping plate 3 rotates 90° synchronously to clamp the legs 15 of the tray 14, thereby limiting the tray 14.

[0038] After the stacking or unpacking of boxes is completed, the AGV trolley 19 lifts the tray 14, and the movable shaft 2 is reset under the action of the spring 7. A pair of limit assemblies 17 can be used to limit the movement and rotation of the tray 14 in the horizontal plane, thereby playing a role of limiting.

Claims

1. A limiting assembly for a medical waste turnover box pallet, characterized in that: It includes a fixed sleeve, a spring and a movable shaft. A guide groove is arranged on the circumferential surface of the fixed sleeve. A limit clamp and a guide shaft are arranged on the movable shaft. The movable shaft is arranged in the fixed sleeve and the part on which the limit clamp is installed extends out of the fixed sleeve. The guide shaft is slidably matched with the guide groove to make the movable shaft rotate synchronously when the movable shaft moves axially.

2. The limiting assembly of the medical waste turnover box pallet according to claim 1 is characterized in that: One end of the position-limiting clamping plate is fixed on the circumferential surface of the movable shaft, and the other end is provided with a clamping portion matched with the tray legs.

3. The limiting assembly of the medical waste turnover box pallet according to claim 1 is characterized in that: The spring is arranged in the fixing sleeve and is located at the bottom of the movable shaft.

4. The limiting assembly of the medical waste turnover box pallet according to claim 3 is characterized in that: An opening is arranged at the bottom of the movable shaft, and the upper part of the spring is located in the opening.

5. The limiting assembly of the medical waste turnover box pallet according to claim 1 is characterized in that: The guide shaft is arranged on the circumferential surface of the movable shaft, and the axes of the guide shaft and the movable shaft are perpendicular to each other.

6. The position limiting assembly of the medical waste turnover box pallet according to claim 1 is characterized in that: The guide groove includes an inclined groove portion and a straight groove portion, the inclined groove portion is inclined, and the straight groove portion is perpendicular to the ground. When the guide shaft moves from the inclined groove portion to the straight groove portion, the movable shaft rotates 90°.

7. The position limiting assembly of the medical waste turnover box pallet according to claim 1 is characterized in that: The fixing sleeve is provided with an expansion bolt hole.

8. The position limiting assembly of the medical waste turnover box pallet according to claim 1 is characterized in that: The tray has four legs, and pressure plates are arranged on the legs.

9. The position limiting assembly of the medical waste turnover box pallet according to claim 1, characterized in that: At least two of the limiting components are arranged diagonally.

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