Nitrogen high-temperature test box with door opening protection function

Abstract

The utility model relates to the technical field of high-temperature test boxes, in particular to a nitrogen high-temperature test box with a door opening protection function, which comprises a bottom plate, a test box fixedly connected to the top of the bottom plate, a control box fixedly connected to the top of the bottom plate, a box door hinged to the front side of the bottom plate, and a switch assembly mounted on the test box and used for opening and closing the box door. A protection assembly for preventing high-temperature gas from scalding personnel when the box door is opened is mounted on the test box, the protection assembly comprises an air pump, the air pump is fixedly mounted at the top of the test box, an exhaust port of the air pump is fixedly communicated with an exhaust pipe, and an air inlet of the air pump is fixedly communicated with an exhaust pipe; in the process of opening the box door, high-temperature gas in the test box is exhausted through the exhaust pipe under the action of the protection assembly, so that a large amount of high-temperature gas is prevented from rushing out to scald operators, and the safety of the operators is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to high temperature test box technical field, specifically is nitrogen high temperature test box with door opening protection function. BACKGROUND

[0002] Nitrogen high temperature experiment box is a kind of equipment for utilizing nitrogen to carry out relevant experiment or processing under high temperature environment, creates the environment of no oxygen or low oxygen by filling nitrogen into the box, reduces or avoids the reaction of sample with oxygen under high temperature. At the same time, utilize heating system to increase the temperature in the box to the set high temperature value, and keep stable, to meet the demand of experiment to high temperature condition.

[0003] Since nitrogen high temperature test box is in high temperature state inside when testing, the gas in it is also high temperature, if operator recklessly opens the door under unknowing condition, high temperature gas gushes out instantaneously, very easy to scald skin, cause serious personal injury, to prevent operator from being scalded by gushing high temperature gas when opening the door, guarantee the safety of operator, we propose nitrogen high temperature test box with door opening protection function. CONTENT OF THE UTILITY MODEL

[0004] In view of the deficiency of prior art, the utility model provides nitrogen high temperature test box with door opening protection function, can prevent operator from being scalded by gushing high temperature gas when opening the door, guarantee the safety of operator.

[0005] To realize above-mentioned purpose, the utility model is realized by following technical scheme:

[0006] Nitrogen high temperature test box with door opening protection function, including bottom plate, the bottom plate top is fixedly connected with test box, the bottom plate top is fixedly connected with control box, the bottom plate front side is hinged with door, the test box is installed with switch assembly of opening and closing door, the test box is installed with the protection assembly of preventing high temperature gas from scalding personnel when opening door, the protection assembly includes gas pump, the gas pump is fixedly installed on the test box top, the exhaust of the gas pump is fixedly connected with exhaust pipe, the gas pump's gas inlet is fixedly connected with suction pipe.

[0007] Preferably, the protection assembly further includes connecting cover, the connecting cover is fixedly connected on the test box top, the connecting cover rear side is fixedly connected with suction pipe, the connecting cover front side is fixedly connected with flow guide cover, the test box inner chamber top is hinged with several groups of second connecting rods, the second connecting rod bottom is fixedly connected with flow guide plate, the second connecting rod rear side is fixedly connected with first connecting rod, the first connecting rod rear end is fixedly connected with counterweight ball.

[0008] Preferably, the switch assembly comprises a flow guide plate, the flow guide plate is fixedly connected to the top of the test box inner cavity, the top of the test box inner cavity is fixedly connected with a spring, the bottom of the spring is fixedly connected with a limiting block, the limiting block is slidably arranged through the flow guide plate, the front side of the limiting block is provided with an inclined surface, the rear side of the door is fixedly connected with a limiting cover, the limiting cover is provided with a slot matched with the limiting block, the door is rotatably provided with a rotating rod, the rear end of the rotating rod is fixedly connected with a cam, and the front end of the rotating rod is fixedly connected with a handle.

[0009] Preferably, the first magnetic control switch and the second magnetic control switch are correspondingly arranged.

[0010] Preferably, the door is rotatably connected with a limiting plate on the left side, the test box is fixedly connected with a lock block on the left side, and the limiting plate is provided with a groove matched with the lock block.

[0011] Preferably, the bottom plate is fixedly connected with a plurality of universal wheels.

[0012] Beneficial effects

[0013] The nitrogen high-temperature test box with door opening protection function has the following beneficial effects compared with the prior art:

[0014] When the door is opened, the nitrogen high-temperature test box with door opening protection function makes the connecting cover in a negative pressure state through the air pump, so that the flow guide cover generates suction force to suck the high-temperature gas in the test box. During the opening process of the door, the counterweight ball descends under the action of gravity, drives the flow guide plate to rotate, and the flow guide plate can block the high-temperature gas in the test box to a certain extent and guide the high-temperature gas to the flow guide cover. The high-temperature gas sucked by the flow guide cover is discharged through the exhaust pipe, so as to prevent a large amount of high-temperature gas from gushing out to scald the operator when the door is opened, and to ensure the safety of the operator. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a front view structural schematic diagram of the main body of the utility model;

[0016] Figure 2 It is a front view structural schematic diagram of the main body of the utility model;

[0017] Figure 3 It is a front view structural schematic diagram of the main body of the utility model;

[0018] Figure 4 It is a front view structural schematic diagram of the main body of the utility model;

[0019] Figure 5 It is a front view structural schematic diagram of the main body of the utility model; Figure 4 It is an enlarged structural schematic diagram of A in the main body of the utility model.

[0020] In the figure: 1, the base plate; 2, the box door; 3, the handle; 4, the universal wheel; 5, the control box; 6, the fairing; 7, the connecting cover; 8, the air pump; 9, the exhaust pipe; 10, the first magnetic control switch; 11, the second magnetic control switch; 12, the lock block; 13, the limiting plate; 14, the air exhaust pipe; 15, the first connecting rod; 16, the counterweight ball; 17, the limiting cover; 18, the fairing; 19, the test box; 20, the limiting block; 21, the cam; 22, the rotating rod; 23, the second connecting rod; 24, the spring. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0022] Please refer to Figures 1-5 The utility model provides a technical scheme: nitrogen high temperature test box with door opening protection function, including base plate 1, base plate 1 top fixedly connected with test box 19, base plate 1 top fixedly connected with control box 5, base plate 1 front side hinged with box door 2, test box 19 is installed with the switch subassembly of opening and closing box door 2, test box 19 is installed with the protection subassembly of preventing high temperature gas scald personnel when opening box door 2, protection subassembly includes air pump 8, air pump 8 fixedly installed at test box 19 top, air pump 8 exhaust port fixedly communicated with exhaust pipe 9, air pump 8 air inlet fixedly communicated with air exhaust pipe 14.

[0023] When using, by control box 5 adjustment control test box 19 in each parameter carries out relevant test, needs to open box door 2, by switch subassembly opens box door 2, in the process of opening box door 2 protection subassembly runs, prevents high temperature gas in test box 19 scalds nearby operator after opening box door 2, guarantees the safety of operator.

[0024] Protection subassembly still includes connecting cover 7, connecting cover 7 fixedly connected at test box 19 top, connecting cover 7 rear side with air exhaust pipe 14 fixedly communicated, connecting cover 7 front side fixedly communicated with fairing 6, test box 19 inner chamber top hinged with several groups of second connecting rod 23, second connecting rod 23 bottom fixedly connected with fairing 18, second connecting rod 23 rear side fixedly connected with first connecting rod 15, first connecting rod 15 rear end fixedly connected with counterweight ball 16.

[0025] When the door 2 is opened, the air pump 8 is started, the connecting cover 7 is in a negative pressure state through the air suction pipe 14, the flow guide cover 6 generates suction force, the high-temperature gas in the test box 19 is sucked, and the counterweight ball 16 is lowered under the action of gravity during the opening of the door 2, drives the second connecting rod 23 to rotate with the hinge point of the test box 19 as the center, drives the flow guide plate 18 to rotate, and the first connecting rod 15 is perpendicular to the ground until the first connecting rod 15 is perpendicular to the ground, the flow guide plate 18 can block the high-temperature gas in the test box 19 to a certain extent, and guide the high-temperature gas to the flow guide cover 6, the high-temperature gas sucked by the flow guide cover 6 is discharged through the exhaust pipe 9, thereby preventing a large amount of high-temperature gas from flowing out when the door 2 is opened, scalding the operator, and ensuring the safety of the operator.

[0026] The switch assembly comprises the flow guide plate 18, the flow guide plate 18 is fixedly connected to the top of the inner cavity of the test box 19, the top of the inner cavity of the test box 19 is fixedly connected with the spring 24, the bottom of the spring 24 is fixedly connected with the limiting block 20, the limiting block 20 is slidably arranged through the flow guide plate 18, the front side of the limiting block 20 is provided with an inclined surface, the rear side of the door 2 is fixedly connected with the limiting cover 17, the limiting cover 17 is provided with a slot matched with the limiting block 20, and the door 2 is rotatably provided with the rotating rod 22, the rear end of the rotating rod 22 is fixedly connected with the cam 21, and the front end of the rotating rod 22 is fixedly connected with the handle 3.

[0027] The handle 3 is manually rotated to drive the rotating rod 22 to rotate, drive the cam 21 to rotate, and the cam 21 extrudes the limiting block 20 upwards, so that the limiting block 20 is separated from the limiting cover 17, and the door 2 can be opened.

[0028] The first magnetic control switch 10 and the second magnetic control switch 11 are used for controlling the start and stop of the air pump 8, the first magnetic control switch 10 and the second magnetic control switch 11 are close to each other, the air pump 8 is closed, and the first magnetic control switch 10 and the second magnetic control switch 11 are away from each other, the air pump 8 is started.

[0029] The first magnetic control switch 10 and the second magnetic control switch 11 are used for controlling the start and stop of the air pump 8, the first magnetic control switch 10 and the second magnetic control switch 11 are close to each other, the air pump 8 is closed, and the first magnetic control switch 10 and the second magnetic control switch 11 are away from each other, the air pump 8 is started.

[0030] The door 2 is rotatably connected with the limiting plate 13, the test box 19 is fixedly connected with the lock block 12, and the limiting plate 13 is provided with a groove matched with the lock block 12.

[0031] The door 2 can be opened only after the limiting plate 13 is manually rotated to separate from the lock block 12, so as to prevent the operator from opening the door 2 by mistake and ensure the safety of the operator.

[0032] The bottom plate 1 is fixedly connected with a plurality of groups of universal wheels 4 at the bottom, so as to facilitate the movement of the device to a suitable position.

[0033] Working principle: when using, through the control box 5 adjusts the control test box 19 in each parameter carries out relevant test, needs to open the box door 2, first manually rotates the limiting plate 13 and makes it separate from the lock block 12, then rotates the handle 3 and drives the rotating rod 22 to rotate, drives the cam 21 to rotate, the cam 21 extrudes the limiting block 20 upwards, makes it separate from the limiting cover 17, can open the box door 2, after the box door 2 is opened, the first magnetic control switch 10 and the second magnetic control switch 11 are far away, the air pump 8 starts, through the air suction pipe 14 makes the connecting cover 7 in the negative pressure state, makes the flow guide cover 6 produce suction, absorbs the high-temperature gas in the test box 19, during the opening of the box door 2, the counterweight ball 16 descends under the action of gravity, drives the second connecting rod 23 to rotate with the hinged point of the test box 19 as the center, drives the deflector plate 18 to rotate, until the first connecting rod 15 is perpendicular to the ground, the deflector plate 18 can block the high-temperature gas in the test box 19 to a certain extent, and guide the high-temperature gas to the flow guide cover 6, the high-temperature gas sucked by the flow guide cover 6 is discharged through the exhaust pipe 9, so as to prevent a large amount of high-temperature gas from gushing out when the box door 2 is opened, and scald the operator, and protect the safety of the operator.

[0034] It should be noted that, in this text, relational terms such as first and second are used merely to distinguish one entity or action from another, without necessarily requiring or implying that there is any such actual relationship or order between these entities or actions. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.

[0035] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A nitrogen high temperature test chamber with a door opening protection function, comprising a bottom plate (1), characterized in that: The top of the base plate (1) is fixedly connected to a test box (19), the top of the base plate (1) is fixedly connected to a control box (5), the front side of the base plate (1) is hinged with a box door (2), the test box (19) is equipped with a switch assembly for opening and closing the box door (2), the test box (19) is equipped with a protection assembly for preventing high-temperature gas from scalding people when the box door (2) is opened, the protection assembly includes an air pump (8), the air pump (8) is fixedly installed on the top of the test box (19), the exhaust port of the air pump (8) is fixedly connected to an exhaust pipe (9), and the air inlet of the air pump (8) is fixedly connected to an exhaust pipe (14).

2. The nitrogen high temperature test chamber with door opening protection function according to claim 1, characterized in that: The protection assembly also includes a connecting cover (7), which is fixedly connected to the top of the test box (19), the rear side of the connecting cover (7) is fixedly connected to the exhaust pipe (14), the front side of the connecting cover (7) is fixedly connected to the guide cover (6), and the top of the inner cavity of the test box (19) is hinged with a plurality of groups of second connecting rods (23), the bottom of the second connecting rod (23) is fixedly connected to the guide plate (18), the rear side of the second connecting rod (23) is fixedly connected to the first connecting rod (15), and the rear end of the first connecting rod (15) is fixedly connected to the counterweight ball (16).

3. The nitrogen high temperature test chamber with door opening protection function according to claim 2, characterized in that: The switch assembly includes a guide plate (18), the guide plate (18) is fixedly connected to the top of the inner cavity of the test box (19), the top of the inner cavity of the test box (19) is fixedly connected with a spring (24), the bottom of the spring (24) is fixedly connected with a limit block (20), the limit block (20) is slidably passed through the guide plate (18), the front side of the limit block (20) is provided with an inclined surface, the rear side of the box door (2) is fixedly connected to the limit cover (17), the limit cover (17) is provided with a slot matching the limit block (20), the box door (2) is rotatably passed through a rotating rod (22), the rear end of the rotating rod (22) is fixedly connected with a cam (21), and the front end of the rotating rod (22) is fixedly connected with a handle (3).

4. The nitrogen high temperature test chamber with door opening protection function according to claim 3, characterized in that: A first magnetic control switch (10) is fixedly installed on the left side of the test box (19), and a second magnetic control switch (11) is fixedly installed on the left side of the box door (2), and the first magnetic control switch (10) corresponds to the second magnetic control switch (11).

5. The nitrogen high temperature test chamber with door opening protection function according to claim 4, characterized in that: The left side of the box door (2) is rotatably connected to a limiting plate (13), and the left side of the test box (19) is fixedly connected to a locking block (12), and the limiting plate (13) is provided with a groove matching the locking block (12).

6. The nitrogen high temperature test chamber with door opening protection function according to claim 5, characterized in that: A plurality of sets of universal wheels (4) are fixedly connected to the bottom of the base plate (1).

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