Ultralow temperature protection device
By designing a supporting beam and caster wheel structure in the protective screen, the problem of instability of the protective screen at extreme low temperatures is solved, achieving stable support and mobility in a liquid nitrogen environment. It is suitable for low-temperature area isolation in scientific research, food industry and medical equipment.
Patent Information
- Application Number
- CN202422329634.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-24
- Publication Date
- 2025-10-24
- Estimated Expiration
- 2034-09-24
AI Technical Summary
Existing protective screens are unstable under extreme low-temperature conditions and are prone to shaking or collapsing due to external forces. Furthermore, traditional devices lack mobility and cannot effectively isolate areas where liquid nitrogen is used.
Design an ultra-low temperature protection device, which adopts a main protective plate and first and second protective plates on both sides, and a support beam and casters at the bottom. The support beam extends to the inner and outer sides to enhance stability, and stable support is achieved when folding through the design of clearance grooves and height difference.
Maintaining stability at extreme low temperatures, providing mobility and space savings when folded, suitable for liquid nitrogen environments down to -196°C, preventing shaking and collapse, and suitable for low-temperature zone isolation in scientific research, the food industry, and medical equipment.
Smart Images
Figure CN223464047U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to mechanical manufacturing technical field, especially, it is a kind of super low temperature protection device. BACKGROUND
[0002] Since the traditional screen does not have a moving structure, manual handling is required. In addition, liquid nitrogen is needed in scientific research, food industry, especially in the development process of medical or medical equipment, and liquid nitrogen is a very low temperature liquid, its temperature can reach-196℃, so it needs to be isolated from the liquid nitrogen use area. However, the traditional protective device cannot be used in extremely low temperature conditions.
[0003] As one of the protective devices, the protective screen can be used to provide isolation and protection equipment, and can provide privacy and separate space. It can be used in offices, hospitals, schools and other places to effectively divide the space into different areas, provide privacy and quiet working environment. In dangerous environments such as factories and laboratories, protective screens can be used as protective measures to prevent workers from coming into contact with harmful substances, heat sources or other dangerous factors, and can be used as a barrier to reduce the possibility of accidents and protect the personal safety of workers. It also plays a role in noise reduction and sound insulation. Therefore, it is a feasible way to isolate the liquid nitrogen use area with a protective screen.
[0004] In addition, the existing protective screen can refer to the structure disclosed in patent CN113017679B, "Medical protective screen". In this patent, the support member is arranged at the bottom end of the protective plate to make it a movable protective screen, which is convenient for moving and storing. However, in this patent, the support member is arranged on the outside of the protective plate, which has stability only when the protective screen is unfolded in U shape during use, otherwise it will be shaken by external force, causing the protective screen to collapse under stress.
[0005] To solve the above problems, the design of a super low temperature protection device is an important technical problem to be solved by the technical personnel in the field at present. CONTENT OF THE UTILITY MODEL
[0006] The purpose of the utility model is to solve the above problems existing in the prior art, and provide a super low temperature protection device.
[0007] The purpose of the utility model is achieved by the following technical solutions:
[0008] A super low temperature protection device, comprising a main protective plate, a first protective plate and a second protective plate pivotally connected to both sides of the main protective plate; the bottom end of the first protective plate and the second protective plate is provided with a support cross beam extending to the inside and outside of the plate body, and the end of the support cross beam is provided with a support universal wheel.
[0009] Preferably, the bottom of the first and second protective plates is further connected with the universal wheel through the second supporting crossbeam, and the universal wheel is close to the outer edge of the first or second protective plate.
[0010] Preferably, the bottom of the first and second protective plates is further formed with an avoiding groove between the supporting universal wheel and the universal wheel.
[0011] Preferably, a set of reinforcing ribs are arranged on the first and second protective plates in the longitudinal and transverse directions, wherein the bottom end of the reinforcing rib arranged in the longitudinal direction is fixedly connected with the supporting crossbeam or the second supporting crossbeam.
[0012] Preferably, the bottom end of the main protective plate is connected with the main universal wheel through the second supporting crossbeam, and the main universal wheel is arranged in the middle along the width direction of the main protective plate.
[0013] Preferably, the bottom of the main protective plate is higher than the bottom of the first and second protective plates.
[0014] Preferably, the main universal wheel, the supporting universal wheel and the universal wheel are all cast iron type universal angle wheels.
[0015] Preferably, the main protective plate is provided with the reinforcing ribs.
[0016] Preferably, the main protective plate, the first protective plate and the second protective plate are all provided with an observation window, the observation window is internally provided with a high-definition acrylic plate, and the observation window is arranged at a height of 1.5 m.
[0017] Preferably, the first and second protective plates are further provided with a handle, and the handle is arranged below the observation window.
[0018] The advantages of the technical scheme of the utility model mainly include:
[0019] The length of the supporting crossbeam is prolonged, and the supporting crossbeam is arranged on the inner and outer sides of the first and second protective plates, so that the supporting stability is increased, and the main protective plate, the first protective plate and the second protective plate can be stably supported in the folded state or any use state.
[0020] The height difference between the main protective plate and the first and second protective plates is utilized, so that the first and second protective plates are attached to the main protective plate when being folded, and the occupied area is reduced.
[0021] In the folded state, the support cross beam and the support universal wheel located below the first protective plate can pass through the avoiding slot and be located directly below the main protective plate, share the stress of the main universal wheel and play a role of stable support for the protective screen in the folded state. BRIEF DESCRIPTION OF DRAWINGS
[0022] Figure 1 Structure diagram of the unfolded state of the preferred embodiment of the utility model;
[0023] Figure 2 First folded state structure diagram of the preferred embodiment of the utility model;
[0024] Figure 3 Second folded state structure diagram of the preferred embodiment of the utility model;
[0025] Figure 4 Storage state structure diagram of the preferred embodiment of the utility model. DETAILED DESCRIPTION
[0026] The purpose, advantages and characteristics of the utility model will be illustrated and explained through the following non-restrictive description of the preferred embodiment. These embodiments are only typical examples of the application of the technical scheme of the utility model, and any technical scheme formed by equivalent replacement or equivalent transformation falls within the scope of the utility model.
[0027] In the description of the scheme, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance. Moreover, in the description of the scheme, with the operator as the reference, the direction close to the operator is the proximal end, and the direction away from the operator is the distal end.
[0028] As Figures 1 to 4As shown, the utility model discloses a kind of super-low temperature protective devices, specifically a protective screen, the protective screen unfolded length preferably is 3.7 meters, height preferably is 2.2 meters. Specifically including main protection board 1, pivotally connected with the first protection board 2 and the second protection board 3 of the two sides of the main protection board 1.Each protection board is made of preferably 3.0mm thick stainless steel 304 material;And can withstand 70Mpa or so impact force. The main protection board 1 is provided with reinforcing rib 234 for enhancing its thickness and stability. Experimental research surface The structure disclosed in the utility model can be applied to-196 ℃ to 650 ℃ liquid splashing, and protection during the experiment process appears accident;Can satisfy the protection demand in super-low temperature liquid nitrogen experiment.
[0029] The bottom end of the main protection board 1 is connected with the main universal wheel 11 through the second support cross beam 232, and the main universal wheel 11 is centrally arranged along the width direction of the main protection board 1. In order to facilitate folding, the utility model preferably makes the bottom of the main protection board 1 higher than the bottom of the first protection board 2 and the second protection board 3. By the height difference between the main protection board 1 and the first protection board 2 and the second protection board 3, the first protection board 2 and the second protection board 3 are attached to the main protection board 1 when folding, and the floor area is reduced.
[0030] As Figure 1 As shown, the bottom end of the first protection board 2 and the second protection board 3 is provided with support cross beam 23 extending to the inside and outside of the plate body, and the end of the support cross beam 23 is provided with support universal wheel 231. Further, the bottom of the first protection board 2 and the second protection board 3 is also connected with universal wheel 233 through the second support cross beam 232, and the universal wheel 233 is close to the outer edge of the first protection board 2 or the second protection board 3. Still further, the main universal wheel 11, the support universal wheel 231 and the universal wheel 233 are all cast iron type universal angle wheels;Wherein, the support universal wheel 231 and the universal wheel 233 are all provided with brake, and the protective screen can be controlled to move or stop through the brake. The specific universal angle wheel and brake are all known prior art, so the specific structure is not described here. In addition, the cast iron type universal caster structure can effectively resist the damage caused by the splashing liquid during the experiment to the main protection board 1, the first protection board 2 and the second protection board 3, compared with ordinary polyurethane and rubber caster, greatly improve the service life.
[0031] The main protective plate 1, the first protective plate 2 and the second protective plate 3 are supported by the main universal wheel 11, the supporting universal wheel 231 and the universal wheel 233; wherein the supporting universal wheel 231 is arranged on the inner and outer sides of the first protective plate 2 and the second protective plate 3 through the supporting beam 23, and extending the length of the supporting beam 23 can increase its supporting stability, ensuring that the main protective plate, the first protective plate 2 and the second protective plate 3 can be stably supported in the folded state or in any use state.
[0032] Furthermore, the bottom of the first protective plate 2 and the second protective plate 3 are also formed as follows Figure 2 The avoidance groove 230 shown is located between the supporting universal wheel 231 and the universal wheel 233. In the folded state, the supporting beam 23 and the supporting universal wheel 231 located below the first protective plate 2 can pass through the avoidance groove 230 and are located directly below the main protective plate 1, while providing stable support for the protective screen in the folded state.
[0033] like Figure 3 As shown, a set of reinforcing ribs 234 are provided on the first and second protective plates 2 and 3 in both longitudinal and transverse directions. The bottom ends of the longitudinally arranged reinforcing ribs 234 are fixedly connected to the supporting crossbeam 23 or the second supporting crossbeam 232. The reinforcing ribs 234 further enhance the stability of the first and second protective plates 2 and 3.
[0034] like Figure 4 As shown, the main protective plate 1, the first protective plate 2, and the second protective plate 3 are each provided with an observation window 123; each observation window 123 is built with a high-definition acrylic panel. The observation window 123 is preferably set at a height of 1.5 meters, which is ergonomic and convenient for personnel to clearly observe and record the test process from the outside. The first protective plate 2 and the second protective plate 3 are also provided with a handle 235, which is located below the observation window 123. The handle 235 can effectively control the folding or extension of the protective plate, making it easy to operate.
[0035] There are many implementation methods for the present utility model, and all technical solutions formed by equivalent transformation or equivalent transformation fall within the protection scope of the present utility model.
Claims
1. A cryoprotective device, characterized by: Including main guard board (1), the first guard board (2) and the second guard board (3) are pivoted in both sides of main guard board (1), the bottom of first guard board (2) and second guard board (3) is provided with the support crossbeam (23) extending to the inside and outside of board body, the end of support crossbeam (23) is provided with support universal wheel (231).
2. A cryoprotective device according to claim 1, wherein: The bottom of the first guard board (2) and the second guard board (3) is also connected with universal wheel (233) through second support crossbeam (232), and the universal wheel (233) is close to the outer edge of the first guard board (2) or the second guard board (3).
3. A cryoprotective device according to claim 2, wherein: The bottom of the first guard board (2) and the second guard board (3) is also formed with the avoidance groove (230), the avoidance groove (230) is located between support universal wheel (231) and universal wheel (233).
4. A cryoprotective device according to claim 3, wherein: A set of reinforcing ribs (234) are longitudinally arranged on the first guard board (2) and the second guard board (3), wherein the bottom end of the reinforcing rib (234) arranged along the longitudinal direction is fixedly connected with the support crossbeam (23) or the second support crossbeam (232).
5. A cryoprotective device according to claim 4, wherein: The bottom end of the main guard board (1) is connected with the main universal wheel (11) through the second support crossbeam (232), and the main universal wheel (11) is centrally arranged along the width direction of the main guard board (1).
6. A cryoprotective device according to claim 1, wherein: The bottom of the main guard board (1) is higher than the bottom of the first guard board (2) and the second guard board (3).
7. A cryoprotective device according to claim 5, wherein: The main universal wheel (11), the support universal wheel (231) and the universal wheel (233) are all cast iron type universal angle wheels.
8. A cryoprotective device according to claim 4, wherein: The main guard board (1) is provided with the reinforcing rib (234).
9. The ultra-low temperature protective device of claim 1, wherein: The main guard board (1), the first guard board (2) and the second guard board (3) are all provided with observation window (123), and the observation window (123) is built-in high-definition acrylic plate, and the setting height of the observation window (123) is 1.5m.
10. A cryoprotective device according to claim 9, wherein: The first guard board (2) and the second guard board (3) are also provided with handle (235), and the handle (235) is located below the observation window (123).