Safety protection device for chemical experiment

Abstract

The utility model discloses a safety protection device for chemical experiments, which relates to the technical field of experimental equipment and comprises a pushing unit, an experiment table is placed in the pushing unit, and a shield unit is mounted in a cavity formed by the pushing unit and the experiment table. The inner wall of the pushing unit is in transmission connection with the bottom of the shield unit; a sealing rubber strip is installed on the edge of the table top of the experiment table and abuts against the inner wall of the protective cover unit. The shield unit slides up and down along the inner wall of the pushing unit. According to the safety protection device for the chemical experiment, the shield unit is hidden in the space formed by the jacking unit and the experiment table, and the operation space of experimenters cannot be influenced when the shield unit is not used; meanwhile, the hinged door is arranged on the shield body, so that experimenters can conveniently carry out experiments and take articles; and in the pushing process, a magnetic guide rail and rotor driving mode is adopted, so that rapid driving operation of the shield unit is realized, and safety protection is carried out on experimenters.

Description

Technical Field

[0001] The utility model relates to the technical field of experimental equipment, in particular to a safety protection device for chemical experiments. Background Art

[0002] In chemical experiments, different chemical reagents often need to be mixed and reacted. Some reactions will release a large amount of heat energy, which can easily cause burns. Some chemical reactions are prone to splashing and injure experimenters, posing multiple safety hazards.

[0003] Most of the safety protection devices used in existing laboratories use glass covers to cover the experimental location. However, if there are a large number of experimental instruments or the overall height of the instruments is high during use, it will affect the operating space of the experimenter, and may cause the experimental instruments to be hit during operation, resulting in structural damage.

[0004] How to develop a safety protection device for chemical experiments that can pop out quickly for protection when needed and hide when not needed without affecting the operating space of the experimenter has become a technical problem that needs to be solved urgently by technicians in this field. Utility Model Content

[0005] The purpose of the utility model is to provide a safety protection device for chemical experiments to solve the problems listed in the background technology.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0007] A safety protection device for chemical experiments, comprising a pushing unit, a laboratory table placed inside the pushing unit, and a shield unit installed in a cavity formed by the pushing unit and the laboratory table;

[0008] The inner wall of the pushing unit is in transmission connection with the bottom of the shield unit;

[0009] A sealing strip is installed on the edge of the table top of the experimental table, and the sealing strip abuts against the inner wall of the shield unit;

[0010] The shield unit slides up and down along the inner wall of the pushing unit.

[0011] Preferably, the pushing unit includes a pushing box, an upper end and a side wall of the pushing box are provided with openings, two opposite side walls of the pushing box are embedded with magnetic guide rails, and a mover is installed on the magnetic guide rails.

[0012] Preferably, the interior of the experimental platform is hollow and is provided with an opening, and the opening of the experimental platform coincides with the opening position of the side wall of the push box;

[0013] A hazard disposal device is placed in the inner space of the experimental table.

[0014] Preferably, the hazard disposal device includes a gas suction and filtration unit, a spray unit and / or a vacuum unit, and the gas suction and filtration unit, the spray unit and / or the vacuum unit are connected to the table top of the laboratory bench through a pipeline.

[0015] Preferably, the shield unit includes a shield body, the upper and lower ends of the shield body are open, and a through hole is opened on one side wall of the shield body, the through hole is open toward the side wall of the push box, the through hole is hinged with a double door, the four corners of the outer peripheral surface of the shield body are installed with outer corner guards, and the four corners of the inner peripheral surface of the shield body are installed with inner corner guards.

[0016] Preferably, the invention further comprises a large triangular top plate, which is mounted on the top of the side wall of the shield body through a leaf spring, and the large triangular top plate is away from the double-leaf door, and small triangular top plates are respectively mounted on the tops of the two opposite side walls of the shield body through leaf springs;

[0017] The two small triangular top plates and the large triangular top plate block the upper end opening of the shield body when they are closed;

[0018] The lower end of the shield body is fixedly connected to the mover.

[0019] Preferably, a white sealing rubber strip is installed at the joint between the small triangular top plate and the large triangular top plate.

[0020] The utility model discloses a safety protection device for chemical experiments. The shield unit is hidden in the space formed by the lifting unit and the laboratory table, so that the shield unit does not affect the operating space of the experimenter when it is not activated. At the same time, the double-doors installed on the shield body can not only replace, maintain and access the articles and devices inside the laboratory table when the shield unit is not activated, but also can lift the shield unit and conduct experiments in the shield body through the double-doors when conducting specific experiments. The driving mode of the magnetic guide rail and the mover is adopted in the pushing process to realize the rapid driving operation of the shield unit. Further, the chemical experiment on the laboratory table surface can be effectively isolated from the experimenter, so as to realize the safety protection of the experimenter. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below with reference to the accompanying drawings.

[0022] Figure 1 This is a three-dimensional schematic diagram of a safety protection device for chemical experiments according to the present invention;

[0023] Figure 2This is a top view schematic diagram of a safety protection device for chemical experiments of the present invention (the shield unit is in a non-working state);

[0024] Figure 3 This is a front view schematic diagram of the push unit of the utility model;

[0025] Figure 4 This is a three-dimensional schematic diagram of the push unit of the utility model;

[0026] Figure 5 This is a three-dimensional schematic diagram of the experimental platform of the utility model;

[0027] Figure 6 This is a three-dimensional schematic diagram of the protective cover unit of the utility model (non-working state);

[0028] Figure 7 This is a top view of the protective cover unit of the present invention (non-working state);

[0029] Figure 8 This is a side view of the protective cover unit of the present invention (non-working state);

[0030] Figure 9 This is a front view schematic diagram of the protective cover unit of the present invention (non-working state);

[0031] Figure 10 This is a front view schematic diagram of a safety protection device for chemical experiments of the present invention (the shield unit is in working state);

[0032] Figure 11 This is a three-dimensional schematic diagram of a safety protection device for chemical experiments according to the present invention (the shield unit is in working state).

[0033] Explanation of the accompanying reference numerals: 1. Pushing unit; 101. Pushing box; 102. Magnetic guide rail; 103. Mover; 2. Experimental table; 3. Shield unit; 301. Shield body; 302. Double doors; 303. Outer corner guard; 304. Small triangular top plate; 305. Inner corner guard; 306. Leaf spring; 307. Large triangular top plate. DETAILED DESCRIPTION

[0034] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0035] like Figure 1-11 As shown, a safety protection device for chemical experiments includes a pushing unit 1, a laboratory table 2 is placed inside the pushing unit 1, and a shield unit 3 is installed in the cavity formed by the pushing unit 1 and the laboratory table 2;

[0036] The inner wall of the pushing unit 1 is transmission-connected to the bottom of the shield unit 3;

[0037] A sealing strip is installed on the edge of the table top of the experimental table 2, and the sealing strip abuts against the inner wall of the shield unit 3;

[0038] The shield unit 3 slides up and down along the inner wall of the pushing unit 1;

[0039] It also includes a foot pedal. When danger is about to occur, the experimenter can step on the foot pedal to control the push unit to push up the shield unit for protection;

[0040] The foot-operated control method can effectively free the hands of the experimenter. Even if the experimenter holds the experimental equipment with both hands, he can still control the lifting unit, which effectively ensures the safety of the experimenter and avoids damage to the experimenter caused by adverse factors such as splashing and harmful gases.

[0041] Specifically, the pushing unit 1 includes a pushing box 101, the upper end and a side wall opening of the pushing box 101 are provided, and magnetic guide rails 102 are embedded in the two opposite side walls of the pushing box 101. A mover 103 is installed on the magnetic guide rail 102, and the mover can move up and down along the magnetic guide rail, and the three side walls of the pushing box 101 can surround the shield order maker to achieve the limitation of the shield unit.

[0042] Specifically, the interior of the experimental platform 2 is hollow, and the experimental platform 2 is provided with an opening, and the opening of the experimental platform 2 coincides with the opening position of the side wall of the push box 101;

[0043] A hazard disposal device is placed in the internal space of the experimental bench 2, and the hazard disposal device includes a gas suction and filtration unit, a spray unit and / or a vacuum unit, and the gas suction and filtration unit, the spray unit and / or the vacuum unit are connected to the table top of the experimental bench 2 through a pipeline. When a danger occurs, the experimenter first controls the shield unit to rise by using a foot pedal to form a harmful protection, and then controls the chemical reaction on the surface of the experimental bench by controlling the corresponding hazard disposal device to prevent the danger level of the chemical reaction from rising.

[0044] Specifically, the shield unit includes a shield body 301, the upper and lower ends of the shield body 301 are open, and a through hole is opened on one side wall of the shield body 301, the through hole is open toward the side wall of the push box 101, and the through hole is hinged with a double-door 302. The design of the double-door 302 can facilitate the experimenter to maintain and replace the hazardous disposal device inside the experimental table. At the same time, the internal space of the experimental table can also be used to place experimental instruments for easy access by the experimenter. Furthermore, when conducting some specific experiments, the experimenter can raise the shield unit, conduct experiments through the double-door, and open the hazardous disposal unit in advance for assistance;

[0045] The four corners of the outer circumference of the shield body 301 are installed with outer corner guards 303, and the four corners of the inner circumference of the shield body 301 are installed with inner corner guards 305. The setting of the outer corner guards and the inner corner guards can effectively protect the shield body and can effectively seal it. At the same time, it can also play a guiding role during the lifting process of the shield body.

[0046] Specifically, it also includes a large triangular top plate 307, which is mounted on the top of the side wall of the shield body 301 through a leaf spring 306, and the large triangular top plate 307 is away from the double-leaf door 302. The tops of the two opposite side walls of the shield body 301 are respectively mounted with small triangular top plates 304 through leaf springs 306.

[0047] When the two small triangular top plates 304 and the large triangular top plate 307 are closed, the upper end opening of the shield body 301 is blocked;

[0048] The lower end of the shield body 301 is fixedly connected to the mover 103; the shield unit is placed inside the jacking unit, and under the action of the leaf spring, the large triangular top plate and the small triangular top plate abut against the inner wall of the jacking box. Furthermore, prestress is applied to the leaf spring. When the mover drives the shield body to move upward, the large and small triangular top plates are out of contact with the inner wall of the jacking box. The leaf spring can drive the large and small triangular top plates to rotate around the upper side wall of the shield body to complete the sealing operation of the upper opening of the shield body.

[0049] Specifically, a white sealing rubber strip is installed at the joint between the small triangular top plate 304 and the large triangular top plate 307. On the one hand, it ensures the sealing effect of the upper opening of the shield body, and on the other hand, it prevents the large and small triangular plates from colliding under the elastic force of the leaf spring, causing damage to the edges and corners, thereby affecting the service life.

[0050] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0051] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Without departing from the spirit of the present invention, various modifications and improvements to the technical solutions of the present invention made by ordinary technicians in this field should fall within the scope of protection determined by the claims of the present invention.

Claims

1. A safety protection device for chemical experiments, characterized by: It comprises a pushing unit (1), a laboratory table (2) is placed inside the pushing unit (1), and a shield unit (3) is installed in a cavity formed by the pushing unit (1) and the laboratory table (2); The inner wall of the pushing unit (1) is in transmission connection with the bottom of the shield unit (3); A sealing strip is installed on the edge of the tabletop of the experimental table (2), and the sealing strip abuts against the inner wall of the shield unit (3); The shield unit (3) slides up and down along the inner wall of the pushing unit (1).

2. A safety protection device for chemical experiments according to claim 1, characterized in that: The pushing unit (1) comprises a pushing box (101), an upper end and a side wall of the pushing box (101) are provided with openings, two opposite side walls of the pushing box (101) are embedded with magnetic guide rails (102), and a mover (103) is installed on the magnetic guide rails (102).

3. A safety protection device for chemical experiments according to claim 2, characterized in that: The interior of the experimental platform (2) is hollow, and the experimental platform (2) is provided with an opening, and the opening of the experimental platform (2) coincides with the opening position of the side wall of the push box (101); A hazard disposal device is placed in the internal space of the experimental table (2).

4. A safety protection device for chemical experiments according to claim 3, characterized in that: The hazardous disposal device comprises a gas suction and filtration unit, a spray unit and / or a vacuum unit, and the gas suction and filtration unit, the spray unit and / or the vacuum unit are connected to the table top of the experimental table (2) through a pipeline.

5. A safety protection device for chemical experiments according to claim 4, characterized in that: The shield unit includes a shield body (301), the upper and lower ends of the shield body (301) are open, and a through hole is opened on one side wall of the shield body (301), the through hole is open toward the side wall of the push box (101), and a double door (302) is hinged on the through hole. The four corners of the outer peripheral surface of the shield body (301) are installed with outer corner guards (303), and the four corners of the inner peripheral surface of the shield body (301) are installed with inner corner guards (305).

6. A safety protection device for chemical experiments according to claim 5, characterized in that: The utility model further comprises a large triangular top plate (307), the large triangular top plate (307) being mounted on the top of the side wall of the shield body (301) via a leaf spring (306), and the large triangular top plate (307) being away from the double-leaf door (302), and small triangular top plates (304) being mounted on the tops of two opposite side walls of the shield body (301) via leaf springs (306). When the two small triangular top plates (304) and the large triangular top plate (307) are closed, the upper end opening of the shield body (301) is blocked; The lower end of the shield body (301) is fixedly connected to the mover (103).

7. A safety protection device for chemical experiments according to claim 6, characterized in that: A white sealing rubber strip is installed at the joint between the small triangular top plate (304) and the large triangular top plate (307).

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