Vacuum glove box structure with gloves easy to replace

Abstract

The invention discloses a vacuum glove box structure with gloves easy to replace, and relates to the technical field of vacuum glove boxes, the vacuum glove box structure comprises a vacuum box and a transparent window, a panel of the transparent window is provided with a vacuum partition plate assembly, and two sets of glove openings of the vacuum partition plate assembly are each provided with a fixing seat assembly; and a glove assembly is mounted in the support of each group of fixed seat assembly. According to the design, when the gloves are replaced daily, on the basis that an opening and closing brake mechanism in the vacuum partition plate assembly brakes and closes an opening and closing valve plate, a glove opening is sealed, a vacuum box is isolated from the external environment, and then vacuum gas in the glove assembly is exhausted through pressure relief of a pressure relief mechanism in the fixed seat assembly; when the vacuum glove box is used, the negative pressure adsorption state of the glove assembly and the fixing base assembly is relieved, meanwhile, gas leakage in the glove is avoided, at the moment, the glove assembly is screwed off, lossless replacement work of the glove in the vacuum glove box can be achieved, and daily glove replacement work can be carried out without vacuumizing.

Description

Technical Field

[0001] The invention relates to the field of vacuum glove boxes, and in particular to a vacuum glove box structure for easy replacement of gloves. Background Art

[0002] The vacuum glove box ensures that the experimental environment is stable 24 hours a day through a closed circulation system, which is suitable for various experimental requirements and is widely used in biochemistry, metallurgy, electronics, chemical industry, geology, mining, medicine and other departments. Due to the special function of the vacuum glove box, the gloves often need to be replaced after use. Therefore, how to replace the gloves has become a problem in the daily use of the vacuum glove box. In the prior art, there are also technical solutions to improve the convenience of replacing gloves in the vacuum glove box. For example, as shown in a vacuum glove box disclosed in the China Patent Network (public announcement number CN115890750A), this type of vacuum glove box has gloves tightly installed through a clamping mechanism, and the air and radiation inside the glove box body are not easy to flow to the outside of the glove box body through the connecting groove, causing harm to the experimenter; as shown in a quick-change vacuum glove box disclosed in the China Patent Network (public announcement number CN116352766A), this type of form can quickly disassemble and replace new and old gloves through the combination of a support structure and a transmission structure, and an adsorption structure and a limit structure.

[0003] However, there are still some shortcomings in the above-mentioned public patents and vacuum glove boxes currently used in the market: when replacing gloves, the existing vacuum glove boxes often need to evacuate the negative pressure inside the vacuum box before replacing the gloves. The replacement operation is cumbersome and the negative pressure vacuum pumping process needs to be repeated after replacement, which results in high daily use costs. Therefore, those skilled in the art provide a vacuum glove box structure that is easy to replace gloves to solve the problems mentioned in the above-mentioned background technology. Summary of the invention

[0004] In view of the shortcomings of the prior art, the present invention provides a vacuum glove box structure for easy replacement of gloves, which solves the problems raised in the above background art that the daily replacement of gloves in the existing vacuum glove box is cumbersome and the replacement cost is high.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a vacuum glove box structure for easy replacement of gloves, comprising a vacuum box and a transparent window;

[0006] The panel of the transparent window is installed with a vacuum diaphragm assembly, and the two groups of glove openings of the vacuum diaphragm assembly are installed with a fixing seat assembly, and the support of each group of the fixing seat assembly is installed with a glove assembly inside;

[0007] The vacuum diaphragm assembly comprises a sealing frame and two groups of glove openings symmetrically extending through the two sides of the vacuum box bracket, the bracket of the sealing frame is provided with opening and closing valve plates arranged circumferentially along the opening direction of the two groups of glove openings, and the number of each group of opening and closing valve plates is four, and the bracket of the sealing frame is provided with an opening and closing brake mechanism for driving the opening and closing of the opening and closing valve plates;

[0008] The fixing seat assembly comprises a mounting seat mounted on the sealing frame along the opening direction of the glove, a stop pad is arranged inside the support of the mounting seat, and a negative pressure chamber is spaced between the mounting seat and the stop pad;

[0009] The glove assembly comprises a glove body, and a negative pressure suction cup opposite to a stop pad is installed at the glove opening of the glove body.

[0010] As a further technical solution of the present invention: the opening and closing brake mechanism includes a brake disc arranged inside the sealing frame bracket along the circumference of the opening and closing valve plate, and the inside of the circular disc of the brake disc is circumferentially provided with four groups of transmission gears opposite to the opening and closing valve plate, the inner ring of the brake disc is provided with a transmission rack meshing with the transmission gears one by one, and the top plate of each group of the opening and closing valve plates is respectively provided with an opening and closing rack meshing with the transmission gear.

[0011] As a further technical solution of the present invention: a brake motor is installed in the middle of the back plate of the sealing frame, and the output end of the brake motor is provided with a brake gear directly opposite to the two groups of brake discs, and the outer rings of the two groups of brake discs are provided with brake racks meshing with the brake gear.

[0012] As a further technical solution of the present invention: a guide slide groove is provided on the top of the plate surface of each group of the opening and closing valve plates, and a guide slide buckle which guides the guide slide groove is circumferentially provided inside the bracket of the sealing frame.

[0013] As a further technical solution of the present invention: a pressure relief mechanism is installed between the two opposite groups of mounting seats;

[0014] The pressure relief mechanism includes a pressure relief pipe installed along the direction of the negative pressure chamber, and two opposite groups of pressure relief pipes are connected to the conducting main pipe. A pressure valve is installed in the middle of the pipeline of the conducting main pipe, and a pressure relief valve is installed at the other end of the conducting main pipe.

[0015] As a further technical solution of the present invention: the plate surface of the stop pad is circumferentially arranged with negative pressure holes that are in communication with the negative pressure cavity.

[0016] As a further technical solution of the present invention: the negative pressure suction cup and the stop pad are of the same size, and the negative pressure suction cup and the stop pad are pressed against each other.

[0017] As a further technical solution of the present invention: an internal threaded sleeve is arranged at the support port of the mounting seat, and an external threaded sleeve which is screwed opposite to the internal threaded sleeve is arranged between the glove body and the negative pressure suction cup.

[0018] The present invention provides a vacuum glove box structure for easy replacement of gloves, which has the following beneficial effects compared with the prior art:

[0019] 1. In the vacuum glove box of the present design, when the gloves are replaced on a daily basis, after the gloves are pulled out from the vacuum box, the opening and closing valve plate is braked and closed by the opening and closing brake mechanism in the vacuum diaphragm assembly to seal the glove opening and isolate the vacuum box from the external environment. Then, the vacuum gas inside the glove assembly is discharged by the pressure relief of the pressure relief mechanism in the fixing seat assembly, and the negative pressure adsorption state of the glove assembly and the fixing seat assembly is released, while preventing the gas inside the gloves from leaking and damaging the health of the personnel. At this time, the glove assembly is unscrewed to realize the non-destructive replacement of the gloves in the vacuum glove box, and the daily glove replacement work can be carried out without exhausting the vacuum.

[0020] 2. When the gloves are subsequently replaced in the vacuum glove box of this design, after the gloves are re-tightened, the gloves are evacuated through the pressure relief mechanism to prevent the air inside the gloves from polluting the inside of the vacuum box. At the same time, the glove assembly is fixed by vacuum negative pressure adsorption. The screwing and negative pressure adsorption effects of the gloves themselves are utilized to achieve double assembly and sealing of the gloves. Then, the vacuum partition assembly is opened, its opening is opened, and the gloves are inserted into the vacuum box to complete the replacement. The replacement is convenient, the sealing is good, and the replacement cost is lower. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 The schematic diagram of the structure of a vacuum glove box for easy replacement of gloves;

[0022] Figure 2 A schematic diagram of replacing a glove assembly in a vacuum glove box structure that is easy to replace gloves;

[0023] Figure 3 The schematic diagram of the structure of the glove assembly in a vacuum glove box structure for easy replacement of gloves;

[0024] Figure 4 It is a structural schematic diagram of a fixing seat assembly in a vacuum glove box structure for easy replacement of gloves;

[0025] Figure 5 The schematic diagram of the structure of a vacuum partition assembly in a vacuum glove box structure for easy replacement of gloves is shown;

[0026] Figure 6 A schematic diagram of the closing of a vacuum partition assembly in a vacuum glove box structure for easy replacement of gloves;

[0027] Figure 7 The figure is a schematic diagram of the opening and closing of the vacuum partition assembly in a vacuum glove box structure for easy replacement of gloves.

[0028] In the figure: 1. vacuum box; 2. transparent window; 3. vacuum diaphragm assembly; 31. sealing frame; 32. brake motor; 33. glove opening; 34. brake disc; 35. brake rack; 36. brake gear; 37. transmission rack; 38. transmission gear; 39. opening and closing rack; 310. opening and closing valve plate; 311. guide slide groove; 312. guide slide buckle; 4. fixed seat assembly; 41. mounting seat; 42. internal threaded sleeve; 43. stop pad; 44. negative pressure discharge hole; 45. negative pressure chamber; 46. pressure relief pipe; 47. pressure valve; 48. conduction main pipe; 49. pressure relief valve; 5. glove assembly; 51. glove body; 52. external threaded sleeve; 53. negative pressure suction cup. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0030] See also Figure 1-7 The present invention provides a technical solution for a vacuum glove box structure for easy replacement of gloves: a vacuum glove box structure for easy replacement of gloves, comprising a vacuum box 1 and a transparent window 2, a panel of the transparent window 2 is provided with a vacuum diaphragm assembly 3, the vacuum diaphragm assembly 3 comprises a sealing frame 31 and two groups of glove openings 33 symmetrically penetrating and opened on both sides of a bracket of the vacuum box 1, the inside of the bracket of the sealing frame 31 is provided with opening and closing valve plates 310 arranged in a circumferential direction along the opening direction of the two groups of glove openings 33, and the number of each group of opening and closing valve plates 310 is four, and the inside of the bracket of the sealing frame 31 is provided with an opening and closing brake for driving the opening and closing of the opening and closing valve plates 310 Mechanism, the opening and closing brake mechanism includes a brake disc 34 arranged inside the sealing frame 31 bracket along the circumference of the opening and closing valve plate 310, a brake motor 32 is installed in the middle of the back plate of the sealing frame 31, and the output end of the brake motor 32 is provided with a brake gear 36 corresponding to the two groups of brake discs 34, and the outer rings of the two groups of brake discs 34 are provided with brake racks 35 meshing with the brake gears 36. By controlling the operation of the brake motor 32, the brake gear 36 is driven to rotate, and the meshing transmission of the brake gear 36 and the brake rack 35 is utilized to push the relative brake disc 34 to rotate, which serves as a driving source to drive the opening and closing valve plate 310 to open and close.

[0031] The inside of the disc of the brake disc 34 is circumferentially provided with four groups of transmission gears 38 opposite to the opening and closing valve plate 310, the inner ring of the brake disc 34 is provided with a transmission rack 37 meshing with the transmission gears 38 one by one, the top plate of each group of opening and closing valve plates 310 is respectively provided with an opening and closing rack 39 meshing with the transmission gear 38, and the top of the plate surface of each group of opening and closing valve plates 310 is provided with a guide slide groove 311. The inside of the bracket of the sealing frame 31 is circumferentially provided with a guide slide buckle 312 guided by the guide slide groove 311. When the brake disc 34 rotates, the transmission rack 37 of its inner ring is driven to rotate, and the one-to-one meshing transmission of the transmission rack 37 and the transmission gear 38 is utilized, and under the meshing transmission of the transmission gear 38 and the opening and closing rack 39, the rotational force is converted into horizontal thrust, pushing the opening and closing valve plates 310 to slide horizontally in sequence, and opening and closing the glove opening 33.

[0032] The two groups of glove openings of the vacuum diaphragm assembly 3 are both installed with a fixing seat assembly 4, and a glove assembly 5 is installed inside the support of each group of the fixing seat assembly 4. The fixing seat assembly 4 includes a mounting seat 41 installed on the sealing frame 31 along the direction of the glove opening 33. The glove assembly 5 includes a glove body 51, and the support port of the mounting seat 41 is provided with an internal threaded sleeve 42. An external threaded sleeve 52 that is screwed opposite to the internal threaded sleeve 42 is provided between the glove body 51 and the negative pressure suction cup 53. By utilizing the threaded combination of the internal threaded sleeve 42 and the external threaded sleeve 52, the staff only needs to screw the glove assembly 5 onto the fixing seat assembly 4 by a simple knob method, and utilize the negative pressure seal between the negative pressure suction cup 53 and the stop pad 43 to form a good sealing connection state.

[0033] A stop pad 43 is arranged inside the support of the mounting seat 41, and a negative pressure chamber 45 is arranged between the mounting seat 41 and the stop pad 43. A negative pressure suction cup 53 opposite to the stop pad 43 is installed at the glove opening of the glove body 51. A pressure relief mechanism is installed between the two opposite groups of mounting seats 41. The pressure relief mechanism includes a pressure relief pipe 46 installed along the chamber direction of the negative pressure chamber 45, and the two opposite groups of pressure relief pipes 46 are connected to the conducting main pipe 48. A pressure valve 47 is installed in the middle of the pipeline of the conducting main pipe 48, and a pressure relief valve 49 is installed at the other end of the conducting main pipe 48. When the gloves are replaced and disassembled, When the vacuum diaphragm assembly 3 is sealed and closed, the valve switch of the pressure relief valve 49 can be opened, and the vacuum in the negative pressure chamber 45 can be relieved by the combination of the conducting main pipe 48 and the pressure relief pipe 46, so that the vacuum is kept at the same pressure as the outside air, and the negative pressure adsorption characteristics between the negative pressure suction cup 53 and the stop pad 43 are released, which is convenient for disassembly and assembly. When the gloves are replaced and installed later, the negative pressure chamber 45 can also be evacuated to make the negative pressure suction cup 53 and the stop pad 43 negatively attracted, thereby improving the installation stability and sealing of the gloves, and at the same time, the air inside the gloves is discharged to avoid polluting the vacuum state in the vacuum box 1.

[0034] The plate surface of the stop pad 43 is circumferentially arranged with negative pressure discharge holes 44 which are connected to the negative pressure chamber 45. The negative pressure suction cup 53 is the same size as the stop pad 43, and the negative pressure suction cup 53 and the stop pad 43 are pressed against each other. By utilizing the negative pressure adsorption of the negative pressure suction cup 53 and the stop pad 43, on the one hand, it can serve as a self-connecting node between the glove assembly 5 and the fixing seat assembly 4 to improve the installation stability. On the other hand, it can self-seal the connection node between the two to improve the sealing while reducing the intensity of human control.

[0035] The working principle of the present invention is as follows: during the daily use of the vacuum glove box, when the gloves need to be replaced, after the glove body 51 is pulled out of the vacuum box 1, the brake motor 32 is first controlled to work, driving the brake gear 36 to rotate, and the meshing transmission of the brake gear 36 and the brake rack 35 is used to push the relative brake disc 34 to rotate, which is used as a driving source to drive the transmission rack 37 of its inner ring to rotate, and the one-to-one meshing transmission of the transmission rack 37 and the transmission gear 38 is used, and under the meshing transmission of the transmission gear 38 and the opening and closing rack 39, the rotational force is converted into horizontal thrust, pushing the opening and closing valve plate 310 to slide horizontally and symmetrically in linkage, closing the glove opening 33, and then sealing the vacuum box 1, and the gloves can be replaced without exhausting the vacuum;

[0036] After the vacuum diaphragm assembly 3 is sealed and closed, the valve switch of the pressure relief valve 49 is opened, and the vacuum in the negative pressure chamber 45 is relieved through the combination of the conducting main pipe 48 and the pressure relief pipe 46, so that the internal pressure is kept equal to the pressure of the outside air, and the negative pressure adsorption characteristics between the negative pressure suction cup 53 and the stop pad 43 are released, and the internal gas is drained out at the same time, so as to avoid the inert gas in the vacuum box remaining in the gloves and damaging the health of the staff. At this time, by using the thread combination of the internal thread sleeve 42 and the external thread sleeve 52, the staff only needs to simply turn the knob to complete the disassembly and assembly of the gloves;

[0037] When replacing new gloves in the future, after the gloves are re-installed with the knobs, the vacuum equipment is used to evacuate the negative pressure chamber 45 through the combination of the pressure relief valve 49, the conducting main pipe 48 and the pressure relief pipe 46. While extracting the gas inside the gloves, the negative pressure suction cup 53 and the stop pad 43 are negatively attracted to each other, thereby improving the sealing firmness of the glove installation. Then, it is only necessary to open and close the opening and closing valve plate 310 of the vacuum diaphragm assembly 3 again to expose the glove opening 33, and put the gloves back into the vacuum box 1. It has good non-destructive replacement characteristics and does not need to exhaust the vacuum to carry out daily glove replacement work. It is simple and convenient to operate, and the operation safety is better.

[0038] The above is only a preferred embodiment of the present invention. It should be noted that, for ordinary technicians in the technical field, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A vacuum glove box structure for easy replacement of gloves, characterized in that: It comprises a vacuum box (1) and a transparent window (2); The panel of the transparent window (2) is installed with a vacuum diaphragm assembly (3), and the two groups of glove openings of the vacuum diaphragm assembly (3) are installed with a fixing seat assembly (4), and the inside of the support of each group of the fixing seat assembly (4) is installed with a glove assembly (5); The vacuum diaphragm assembly (3) comprises a sealing frame (31) and two groups of glove openings (33) symmetrically extending through and opening on both sides of a bracket of the vacuum box (1); opening and closing valve plates (310) are arranged circumferentially inside the bracket of the sealing frame (31) along the opening direction of the two groups of glove openings (33), and the number of each group of opening and closing valve plates (310) is four; and an opening and closing brake mechanism for driving the opening and closing valve plates (310) to open and close is arranged inside the bracket of the sealing frame (31); The fixing seat assembly (4) comprises a mounting seat (41) mounted on the sealing frame (31) along the direction of the glove opening (33), a stop pad (43) is arranged inside the support of the mounting seat (41), and a negative pressure chamber (45) is spaced between the mounting seat (41) and the stop pad (43); The glove assembly (5) comprises a glove body (51), and a negative pressure suction cup (53) opposite to the stop pad (43) is installed on the glove opening of the glove body (51).

2. The vacuum glove box structure for easy replacement of gloves according to claim 1, characterized in that: The opening and closing brake mechanism comprises a brake disc (34) arranged inside a sealing frame (31) bracket along the circumference of an opening and closing valve plate (310), and four groups of transmission gears (38) opposite to the opening and closing valve plate (310) are arranged circumferentially inside the circular disc of the brake disc (34), and the inner ring of the brake disc (34) is provided with a transmission rack (37) meshing with the transmission gears (38) one by one, and the top plate of each group of the opening and closing valve plates (310) is respectively provided with an opening and closing rack (39) meshing with the transmission gear (38).

3. The vacuum glove box structure for easy replacement of gloves according to claim 2, characterized in that: A brake motor (32) is installed in the middle of the back plate of the sealing frame (31), and the output end of the brake motor (32) is provided with a brake gear (36) directly opposite to the two groups of brake discs (34), and the outer rings of the two groups of brake discs (34) are provided with brake racks (35) meshing with the brake gear (36).

4. The vacuum glove box structure for easy replacement of gloves according to claim 2, characterized in that: A guide slide groove (311) is provided on the top of the plate surface of each group of the opening and closing valve plates (310), and a guide slide buckle (312) guiding the guide slide groove (311) is circumferentially provided inside the bracket of the sealing frame (31).

5. The vacuum glove box structure for easy replacement of gloves according to claim 1, characterized in that: A pressure relief mechanism is installed between the two opposite groups of mounting seats (41); The pressure relief mechanism comprises a pressure relief pipe (46) installed along the direction of the negative pressure chamber (45), and two opposite groups of pressure relief pipes (46) are connected to a conducting main pipe (48), a pressure valve (47) is installed in the middle of the pipeline of the conducting main pipe (48), and a pressure relief valve (49) is installed at the other end of the conducting main pipe (48).

6. The vacuum glove box structure for easy replacement of gloves according to claim 1, characterized in that: The plate surface of the stop pad (43) is provided with negative pressure discharge holes (44) arranged in a circumferential manner and communicating with the negative pressure chamber (45).

7. The vacuum glove box structure for easy replacement of gloves according to claim 1, characterized in that: The negative pressure suction cup (53) and the stop pad (43) are of the same size, and the negative pressure suction cup (53) and the stop pad (43) are pressed flat against each other.

8. The vacuum glove box structure for easy replacement of gloves according to claim 1, characterized in that: The support port of the mounting seat (41) is provided with an internal thread sleeve (42), and an external thread sleeve (52) screwed opposite to the internal thread sleeve (42) is provided between the glove body (51) and the negative pressure suction cup (53).

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