Multi-angle operating laboratory glove box

Abstract

This utility model relates to the field of glove box technology, and in particular to a multi-angle operating laboratory glove box, comprising a base and ball bearings. The upper end of the inner wall of the base is rotatably connected to multiple ball bearings, and the upper end of the outer wall of the ball bearings is in contact with the glove box. A shell is fixedly connected to the middle of the lower end of the outer wall of the base, and a vertical plate is fixedly connected to the right side of the lower end of the outer wall of the base. This multi-angle operating laboratory glove box, through the cooperation of a glove box angle adjustment structure and a manual angle adjustment structure, uses a second gear to drive a worm gear to rotate, which in turn drives the glove box to rotate and adjust the angle. A motor ultimately drives a worm wheel to rotate, which in turn adjusts the glove box's rotation, allowing for angle adjustment to meet the needs of the operator. When the motor is damaged or there is a power outage, the first and second circular plates are disconnected, and the glove box is then rotated by turning the handle to adjust the angle, preventing motor damage from causing the rotation function to fail and affecting the experimental process.

Description

Technical Field

[0001] This utility model relates to the field of glove box technology, specifically a multi-angle operating laboratory glove box. Background Technology

[0002] Laboratory glove boxes are widely used in laboratories for the research and testing of pharmaceutical products, fine chemicals, nuclear industry, and new energy materials. Common glove boxes are divided into anaerobic glove boxes, isolation glove boxes, and others. They generally have functions such as isolation, dust prevention, protection, pollution prevention, infection prevention, and radiation protection. By using glove boxes, the harm of harmful substances to the human body can be effectively reduced, and the health of operators can be protected from the harm and pollution caused by dust, toxic gases, bacteria, viruses, and harmful organisms.

[0003] For example, a multi-angle operating laboratory glove box with announcement number "CN219275894U" allows operators to work from different positions around the glove box, or rotate the experimental materials inside for operation. This solves the problem of limited operating range and angle for operators. Furthermore, each of the four side walls of the glove box has a pair of glove holes, allowing multiple people to operate simultaneously and improving experimental efficiency. However, the above method relies solely on a motor to drive the glove box's rotation. Prolonged high-load operation of the motor may lead to overheating or wear, posing a possibility of damage. If the motor fails or power is lost, the entire rotation function malfunctions, affecting the experimental process. Utility Model Content

[0004] The purpose of this invention is to solve the problem that the glove box can only be driven by a motor to rotate, which may cause overheating or wear due to long-term high-load operation of the motor, and there is a probability of damage. If the motor is damaged or the power is cut off, the entire rotation function will fail, affecting the experimental process. Therefore, a multi-angle operation laboratory glove box is proposed.

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

[0006] Design a multi-angle operating laboratory glove box, including a base and ball bearings. The upper end of the inner wall of the base is rotatably connected to multiple ball bearings. The upper end of the outer wall of the ball bearings is in contact with the glove box. A shell is fixedly connected to the middle of the lower end of the outer wall of the base. A vertical plate is fixedly connected to the right side of the lower end of the outer wall of the base. An angle adjustment structure for the glove box is provided on the left side of the lower end of the base. A manual angle adjustment structure is provided on the right side of the lower end of the base.

[0007] Preferably, the glove box angle adjustment structure includes a motor, a first circular plate is fixedly connected to the end of the motor output shaft, the inner wall of the outer shell is rotatably connected to the worm gear through a bearing, a second circular plate is fixedly connected to the end of the worm gear shaft, the first circular plate and the second circular plate are fixedly connected by bolts, and the outer wall of the worm gear is meshed with a worm wheel.

[0008] Preferably, the worm gear shaft is rotatably connected to the base and the outer casing via bearings, and the outer wall of the motor is fixedly connected to the base via a bracket.

[0009] Preferably, the upper end of the worm gear rotating shaft is fixedly connected to the glove box.

[0010] Preferably, the manual angle adjustment structure includes a handle, a first gear is fixedly connected to the end of the handle, the first gear's rotating shaft is rotatably connected to the housing via a bearing, the outer wall of the first gear is meshed with a second gear, the second gear's rotating shaft is rotatably connected to the housing via a bearing, and the second gear's rotating part is fixedly connected to a worm gear.

[0011] Preferably, the outer wall of the handle is rotatably connected to the vertical plate and the outer casing via bearings.

[0012] This invention proposes a multi-angle operating laboratory glove box, which has the following advantages: Through the cooperation of the glove box angle adjustment structure and the manual angle adjustment structure, the first motor starts and drives the first circular plate to rotate. The rotation of the first circular plate drives the second circular plate to rotate via bolts. The second circular plate then drives the worm gear to rotate within the outer shell via bearings. The worm gear rotates the worm wheel within the outer shell and base via bearings. Simultaneously, the worm wheel drives the glove box to rotate synchronously. Turning the handle drives the first gear to rotate, which in turn drives the second gear. The second gear drives the worm gear to rotate, and the worm gear rotates the glove box to adjust the angle. Ultimately, the motor drives the worm wheel to rotate, and the worm wheel adjusts the glove box's rotation, allowing for angle adjustment to meet the needs of the operator. When the motor is damaged or there is a power outage, the first and second circular plates are disconnected, and the glove box is then driven to rotate and adjust the angle by turning the handle, preventing motor damage from causing the rotation function to fail and affecting the experimental process. Attached Figure Description

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

[0014] Figure 2 for Figure 1 A front sectional view;

[0015] Figure 3 for Figure 2 A front view of the first gear in the middle;

[0016] Figure 4 for Figure 2 A three-dimensional view of the first circular plate in the middle;

[0017] Figure 5 for Figure 2 Enlarged view of A in the middle;

[0018] Figure 6 for Figure 2 A magnified view of B in the middle.

[0019] In the diagram: 1. Glove box angle adjustment structure, 101. Motor, 102. First circular plate, 103. Second circular plate, 104. Worm gear, 105. Worm wheel; 2. Manual angle adjustment structure, 201. Handle, 202. First gear, 203. Second gear, 3. Ball bearing, 4. Glove box, 5. Vertical plate, 6. Outer shell, 7. Base. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings:

[0021] See attached document Figure 1-6 In this embodiment, a multi-angle operating laboratory glove box includes a base 7 and rollers 3. The upper end of the inner wall of the base 7 is rotatably connected to multiple rollers 3, and the rollers 3 can move within the base 7. The upper end of the outer wall of the rollers 3 is in contact with the glove box 4, and the rollers 3 can support the glove box 4. The lower middle part of the outer wall of the base 7 is fixedly connected to the outer shell 6.

[0022] A vertical plate 5 is fixedly connected to the lower right side of the outer wall of the base 7. A glove box angle adjustment structure 1 is provided on the lower left side of the base 7. A manual angle adjustment structure 2 is provided on the lower right side of the base 7. The rotating shaft of the worm gear 105 is rotatably connected to the base 7 and the outer shell 6 through bearings. The worm gear 105 can rotate within the base 7 and the outer shell 6 through the bearings. The outer wall of the motor 101 is fixedly connected to the base 7 through a bracket. The upper end of the rotating shaft of the worm gear 105 is fixedly connected to the glove box 4. The outer wall of the handle 201 is rotatably connected to the vertical plate 5 and the outer shell 6 through bearings. The handle 201 can rotate within the vertical plate 5 and the outer shell 6 through the bearings.

[0023] See attached document Figure 1-2 4-5: The glove box angle adjustment structure 1 includes a motor 101, which is a servo motor. The output shaft end of the motor 101 is fixedly connected to a first circular plate 102. The motor 101 can drive the first circular plate 102 to rotate. The inner wall of the outer shell 6 is rotatably connected to the worm gear 104 through a bearing.

[0024] The worm 104 can rotate within the housing 6 via a bearing. A second circular plate 103 is fixedly connected to the shaft end of the worm 104. The first circular plate 102 and the second circular plate 103 are fixedly connected by bolts. If necessary, the bolts can be removed to disconnect the connection between the first circular plate 102 and the second circular plate 103. The outer wall of the worm 104 is meshed with the worm wheel 105.

[0025] See attached document Figure 1-36: The manual angle adjustment structure includes a handle 201, with a first gear 202 fixedly connected to the end of the handle 201. The rotating shaft of the first gear 202 is rotatably connected to the outer casing 6 through a bearing. The handle 201 can drive the first gear 202 to rotate within the outer casing 6 through the bearing.

[0026] The outer wall of the first gear 202 meshes with the second gear 203. The rotating shaft of the second gear 203 is rotatably connected to the outer casing 6 through a bearing. The second gear 203 can rotate inside the outer casing 6 through the bearing. The rotating part of the second gear 203 is fixedly connected to the worm gear 104.

[0027] Working principle:

[0028] Multi-angle adjustment of the laboratory glove box:

[0029] When the laboratory glove box needs to be adjusted, the external power supply of the motor 101 is turned on. The first motor 101 starts and drives the first circular plate 102 to rotate. The rotation of the first circular plate 102 drives the second circular plate 103 to rotate through the bolts. In turn, the second circular plate 103 drives the worm gear 104 to rotate in the outer shell 6 through the bearing. The rotation of the worm gear 104 drives the worm wheel 105 to rotate in the outer shell 6 and the base 7 through the bearing. At the same time, the worm wheel 105 drives the glove box 4 to rotate synchronously. At this time, multiple balls 3 are rubbed by the glove box 4 and move in the base 7. The multiple balls 3 are arranged in a ring and can support the glove box 4. In this way, the angle of the glove box 4 can be adjusted.

[0030] When the glove box 4 is adjusted to the appropriate angle, the motor 101 stops moving. Since the worm gear 105 and the worm 104 mesh with a self-locking function, the glove box 4 can be positioned. When the worm 104 rotates, it drives the second gear 203 to rotate in the housing 6 through the bearing. The rotation of the second gear 203 drives the first gear 202 to rotate in the housing 6 through the bearing. In turn, the first gear 202 drives the handle 201 to rotate in the housing 6 and the vertical plate 5 through the bearing. In addition, the first gear 202 has 100 teeth and the second gear 203 has 50 teeth. The second gear 203 rotates two revolutions to drive the first gear 202 to rotate one revolution, which reduces the torque of the first gear 202.

[0031] When the motor 101 is damaged or cannot run due to power failure, first rotate the nut on the left end of the bolt at the connection between the first circular plate 102 and the second circular plate 103 to disengage it. Then rotate the bolt outward to disengage it from the first circular plate 102 and the second circular plate 103. This will disconnect the first circular plate 102 and the second circular plate 103. Then, the maintenance personnel can repair the motor 101. After the repair is completed, the first circular plate 102 and the second circular plate 103 can be reconnected using the bolt, and the glove box 4 can be rotated by the motor 101 to adjust the angle. During motor repair or power failure, the handle 201 can be rotated to drive the first gear 201 to rotate (when the handle 201 is rotated to the appropriate position, the bolt can pass through the handle 201 and abut against the vertical plate 5. The bolt and the handle 201 are threaded together to achieve the locking function). The first gear 201 drives the second gear 203 to rotate, the second gear 203 drives the worm gear 104 to rotate, and the worm gear 104 rotates to drive the glove box 4 to rotate to adjust the angle. In this way, when the motor 101 is damaged or power failure occurs, the glove box 4 can be manually driven to rotate to adjust the angle.

[0032] The glove box 4 is made of transparent material (such as acrylic or tempered glass) for easy observation. It has a sealed door for sample transfer and consists of the following components: glove interface: the operator conducts experiments inside the box using attached gloves (usually nitrile or neoprene); gas circulation system; purification system: removes water and oxygen (usually using catalysts and molecular sieves); pressure regulation: maintains a slight positive or negative pressure to prevent external contamination or leakage of harmful substances; and a pass box: used for sample entry and exit to reduce interference from the internal atmosphere.

[0033] The procedure for using glove box 4 is as follows: 1. Check the system status and confirm that the glove box is well sealed (no air leakage, no damage to the gloves). Check the water and oxygen sensor values ​​(usually H2O < 1ppm, O2 < 1ppm). Ensure that the gas purification system (molecular sieve, catalyst) is not saturated. Regenerate or replace if necessary. 2. Pre-treat the transition chamber (pass box). If samples need to be transferred, first evacuate the transition chamber (-0.1MPa) and then fill it with inert gas. Repeat this 3 times to replace residual air. 3. Wear personal protective equipment. Operators must wear nitrile gloves (to prevent sweat from contaminating the glove box). If necessary, wear a lab coat.

[0034] Sample / tool ​​placement in glove box procedure: Inject the sample through the transition chamber, place the sample into the outer door of the transition chamber, close the outer door and evacuate, fill the transition chamber with inert gas to atmospheric pressure, open the inner door and move the sample into the main glove box, or directly place it into the small glove box: Quickly open the main glove box door, put the item in and close it immediately (only for short-term operation).

[0035] Operating procedure inside the chamber: Slowly insert both hands into the gloves to avoid sudden movements that could cause pressure fluctuations inside the chamber. Minimize the number of times the gloves are bent during operation to prevent fatigue and damage.

[0036] Sample removal and shutdown

[0037] Sample removal: The sample is removed through the transition chamber using a "vacuum-gas" cycle (the steps are the reverse of the injection). If the sample is toxic, it must first be purified through the exhaust gas treatment system.

[0038] Shutdown procedure: Empty the contents of the glove box, turn off the circulating fan and gas valve. If the unit is to be shut down for an extended period, maintain a slight positive pressure in the glove box (by filling it with inert gas).

[0039] Although the present invention has been illustrated and described with reference to preferred embodiments, those skilled in the art should understand that various changes in form and detail are possible within the scope of the claims.

Claims

1. A multi-angle operating laboratory glove box, comprising a base (7) and ball bearings (3), wherein the upper end of the inner wall of the base (7) is rotatably connected to a plurality of ball bearings (3), characterized in that: The upper end of the outer wall of the ball (3) is in contact with the glove box (4). The lower middle part of the outer wall of the base (7) is fixedly connected to the outer shell (6). The lower right side of the outer wall of the base (7) is fixedly connected to the vertical plate (5). The lower left side of the base (7) is provided with a glove box angle adjustment structure (1). The lower right side of the base (7) is provided with a manual angle adjustment structure (2).

2. The multi-angle operating laboratory glove box according to claim 1, characterized in that: The glove box angle adjustment structure (1) includes a motor (101), the output shaft end of the motor (101) is fixedly connected to a first circular plate (102), the inner wall of the outer shell (6) is rotatably connected to a worm (104) through a bearing, the shaft end of the worm (104) is fixedly connected to a second circular plate (103), the first circular plate (102) and the second circular plate (103) are fixedly connected by bolts, and the outer wall of the worm (104) is meshed with a worm wheel (105).

3. The multi-angle operations laboratory glovebox of claim 2, wherein: The worm gear (105) rotating shaft is rotatably connected to the base (7) and the outer shell (6) respectively through bearings, and the outer wall of the motor (101) is fixedly connected to the base (7) through a bracket.

4. The multi-angle operations laboratory glovebox of claim 2, wherein: The upper end of the rotating shaft of the worm gear (105) is fixedly connected to the glove box (4).

5. The multi-angle operations laboratory glovebox of claim 2, wherein: The manual angle adjustment structure includes a handle (201), and a first gear (202) is fixedly connected to the end of the handle (201). The rotating shaft of the first gear (202) is rotatably connected to the outer shell (6) through a bearing. The outer wall of the first gear (202) is meshed with a second gear (203). The rotating shaft of the second gear (203) is rotatably connected to the outer shell (6) through a bearing. The rotating part of the second gear (203) is fixedly connected to a worm gear (104).

6. The multi-angle operations laboratory glovebox of claim 5, wherein: The outer wall of the handle (201) is rotatably connected to the vertical plate (5) and the outer shell (6) via bearings.

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