Dustproof device for chemical instrument

Abstract

The utility model discloses a chemical instrument dustproof device which comprises a shell, the shell comprises an upper round portion and a lower rectangular portion, one face of the shell is open, and a main closing plate and an auxiliary closing plate are detachably installed on the open face of the shell. The main closing plate is a circular plate, a hole is formed in the middle of the main closing plate, a transparent glass plate is mounted in the hole, and the main closing plate is mounted on the circular opening surface; the auxiliary sealing plate is a rectangular plate and is installed on the opening face of the rectangular part. And a locking mechanism is also arranged between the main closing plate of the rectangular part and the round part. According to the device structure disclosed by the utility model, the chemical instrument is protected, and dust and liquid are prevented from entering the instrument, so that the purposes of normal reading and observation of the chemical instrument are ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical equipment, in particular to a dustproof device for chemical instruments. Background Art

[0002] Chemical instruments are used to automatically detect, display, and control various variables (temperature, pressure, liquid level, flow rate, composition, etc.) in production processes such as chemical and oil refining. When in use, chemical instruments are generally connected to pipelines through the pipe fittings on the chemical instrument.

[0003] As a precision instrument, chemical instrument is easily interfered by various external factors, which in turn affects the detection effect. Due to long-term exposure to dusty working environments such as factories, external dust easily falls and accumulates outside the chemical instrument, which is not conducive to the reading of the chemical instrument and thus affects the observation of the chemical instrument.

[0004] In order to prevent dust from adhering to the instrument, a protective cover is usually wrapped around the surface of the instrument. However, the sealing of the joints of the protective cover is not good enough, and external dust or water can easily enter the protective cover through the gaps in the joints. Summary of the Invention

[0005] The technical problem to be solved by the utility model is to provide a chemical instrument dustproof device, which realizes the protection of the chemical instrument and prevents dust and liquid from entering the interior of the instrument.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is as follows: a chemical instrument dustproof device, comprising a shell, the shell comprising an upper circular portion and a lower rectangular portion, the shell having an opening on one side, and a main closing plate and a secondary closing plate detachably mounted on the opening surface of the shell;

[0007] The main closing plate is a circular plate with a hole in the middle and a transparent glass plate installed. The main closing plate is installed on the opening surface of the circular portion;

[0008] The auxiliary sealing plate is a rectangular plate and is installed on the opening surface of the rectangular portion.

[0009] A locking mechanism is also provided between the main closing plate of the rectangular portion and the circular portion.

[0010] In a preferred solution, grooves are provided around the opening surface of the circular portion, and a rubber gasket is provided on the periphery of one side of the main closing plate. The rubber gasket and the groove engage with each other to fix the main closing plate on the circular portion.

[0011] In a preferred solution, a plurality of insertion holes are evenly distributed on the groove, and a plurality of insertion rods passing through the rubber gasket are provided on the main closing plate, and the plurality of insertion rods are inserted into the insertion holes in a one-to-one correspondence.

[0012] In the preferred solution, the opening surface of the rectangular part is provided with a placing groove, and the auxiliary closing plate is arranged in the placing groove.

[0013] In the preferred solution, eccentric discs are arranged at the bottom corners on both sides of the opening surface of the rectangular part, and the eccentric discs rotate to cover the bottom corners on both sides of the auxiliary closing plate.

[0014] In the preferred solution, the locking mechanism is an elastic sleeve arranged on the outer circular surface of the main closing plate and capable of being flipped to both sides of the main closing plate.

[0015] In the preferred solution, the locking mechanism comprises a plurality of vertical bars arranged on the outer circular surface of the main closing plate, a pad is fixedly arranged on the outer wall surface of the circular part, at least two springs are fixedly connected to one side of the pad, one end of the two springs is fixedly connected to the pad, and the other end is connected to the same hanging ring, and the hanging ring is hung with the vertical bar to realize the fixation of the main closing plate on the opening surface of the circular part.

[0016] The chemical instrument dustproof device has the following beneficial effects by adopting the above structure:

[0017] (1) The chemical instrument is wrapped and protected, and dust is effectively prevented from entering the instrument;

[0018] (2) The elastic sleeve or the vertical bar and the hanging ring are matched to ensure the tightness of the connection between the circular part and the main closing plate, and prevent dust or liquid in the outside from entering the device through the gap between the parts. BRIEF DESCRIPTION OF DRAWINGS

[0019] The utility model will be further described in connection with the drawings and examples:

[0020] Figure 1 It is the whole structure schematic diagram of the utility model.

[0021] Figure 2 It is another visual angle structure schematic diagram of the utility model. Figure 1

[0022] It is another structure schematic diagram of the utility model. Figure 3

[0023] It is another visual angle structure schematic diagram of the utility model. Figure 4 Figure 3 In the drawing: shell 1, circular part 101, rectangular part 102, main closing plate 2, auxiliary closing plate 3, recess 4, rubber gasket 5, insertion hole 6, insertion rod 7, eccentric disc 8, placing groove 9, elastic sleeve 10, vertical bar 11, pad 12, spring 13, hanging ring 14.

[0024] DETAILED DESCRIPTION

[0025] ​​Example 1:

[0026] like Figure 1-2 A dustproof device for a chemical instrument includes a housing 1, wherein the housing 1 includes an upper circular portion 101 and a lower rectangular portion 102. The housing 1 has an opening on one side, and a main sealing plate 2 and a secondary sealing plate 3 are detachably mounted on the opening surface of the housing 1.

[0027] The main sealing plate 2 is a circular plate with a hole in the middle and a transparent glass plate installed. The main sealing plate 2 is installed on the opening surface of the circular portion 101;

[0028] The auxiliary sealing plate 3 is a rectangular plate, and is installed on the opening surface of the rectangular portion 102 .

[0029] In a preferred embodiment, grooves 4 are provided around the opening surface of the circular portion 101 , and a rubber gasket 5 is provided on the periphery of one side of the main closing plate 2 . The rubber gasket 5 and the groove 4 engage with each other to fix the main closing plate 2 on the circular portion 101 .

[0030] In a preferred embodiment, a plurality of insertion holes 6 are evenly distributed on the groove 4 , and a plurality of insertion rods 7 passing through the rubber gasket 5 are provided on the main closing plate 2 , and the plurality of insertion rods 7 are inserted into the insertion holes 6 in a one-to-one correspondence.

[0031] In a preferred solution, a placement groove 9 is provided on the opening surface of the rectangular portion 102 , and the auxiliary closing plate 3 is disposed in the placement groove 9 .

[0032] In a preferred solution, eccentric disks 8 are provided at the bottom corners on both sides of the opening surface of the rectangular portion 102 , and the eccentric disks 8 rotate to press the bottom corners on both sides of the auxiliary sealing plate 3 .

[0033] In a preferred solution, the locking mechanism is an elastic sleeve 10 provided on the outer circumferential surface of the main closing plate 2 and capable of being flipped toward both sides of the main closing plate 2 .

[0034] Based on this embodiment, when the device is installed:

[0035] Put the shell 1 on the chemical instrument, then insert the secondary closing plate 3 into the placement groove 9, then align the various insertion rods 7 on the main closing plate 2 with the sockets 6 in the groove 4, then push the main closing plate 2 so that the insertion rods 7 are all inserted into the sockets 6, then turn the elastic sleeve 10 on the main closing plate 2 outward so that the elastic sleeve 10 is sleeved on the outside of the shell 1, thereby completing the assembly of the main closing plate 2, then rotate the two eccentric disks 8 so that the two eccentric disks 8 cover the edges and corners of the secondary closing plate 3. Through this structural design, the wrapped protection of the chemical instrument is completed, thereby preventing external dust from entering the instrument. At the same time, the rubber gasket 5 seals the contact point, and the sealing of the elastic sleeve 10 can further increase the sealing of the connection to prevent dust, liquid, etc. from entering the instrument through the connection.

[0036] Example 2:

[0037] like Figure 3-4 In this embodiment, except for the locking mechanism, the structure is the same as that described in Example 1, wherein:

[0038] The locking mechanism includes a plurality of vertical bars 11 arranged on the outer circular surface of the main closing plate 2, a pad 12 is fixedly provided on the outer wall surface of the circular portion 101, and at least two springs 13 are fixedly connected to one side of the pad 12. One end of the two springs 13 is fixedly connected to the pad 12, and the other end is connected to the same hanging ring 14. The hanging ring 14 is hung and cooperated with the vertical bars 11 to fix the main closing plate 2 on the opening surface of the circular portion 101.

[0039] This ensures the stability and sealing of the assembly of the main closing plate 2.

Claims

1. A dustproof device for chemical instruments, characterized by: The housing (1) comprises an upper circular portion (101) and a lower rectangular portion (102); one side of the housing (1) is open, and a main closing plate (2) and a secondary closing plate (3) are detachably mounted on the open side of the housing (1); The main sealing plate (2) is a circular plate, the middle of the main sealing plate (2) is opened and a transparent glass plate is installed, and the main sealing plate (2) is installed on the opening surface of the circular portion (101); The auxiliary sealing plate (3) is a rectangular plate, and the auxiliary sealing plate (3) is mounted on the opening surface of the rectangular portion (102); A locking mechanism is also provided between the main closing plate (2) of the rectangular portion (102) and the circular portion (101).

2. A chemical instrument dustproof device according to claim 1, characterized in that: Grooves (4) are provided around the opening surface of the circular portion (101), and a rubber gasket (5) is provided on the periphery of one side of the main closing plate (2). The rubber gasket (5) and the groove (4) engage with each other to achieve the fixation of the main closing plate (2) on the circular portion (101).

3. A chemical instrument dustproof device according to claim 2, characterized in that: The groove (4) is evenly distributed with a plurality of insertion holes (6), and the main closing plate (2) is provided with a plurality of insertion rods (7) passing through the rubber gasket (5), and the plurality of insertion rods (7) are inserted into the insertion holes (6) in a one-to-one correspondence.

4. A chemical instrument dustproof device according to claim 1, characterized in that: A placement groove (9) is provided on the opening surface of the rectangular portion (102), and the auxiliary closing plate (3) is arranged in the placement groove (9).

5. A chemical instrument dustproof device according to claim 4, characterized in that: Eccentric disks (8) are provided at the bottom corners on both sides of the opening surface of the rectangular portion (102), and the eccentric disks (8) rotate to press the bottom corners on both sides of the auxiliary closing plate (3).

6. A chemical instrument dustproof device according to claim 1, characterized in that: The locking mechanism is an elastic sleeve (10) provided on the outer circumferential surface of the main closing plate (2) and capable of being turned toward both sides of the main closing plate (2).

7. A chemical instrument dustproof device according to claim 1, characterized in that: The locking mechanism comprises a plurality of vertical bars (11) arranged on the outer circular surface of the main closing plate (2), a cushion block (12) is fixedly provided on the outer wall surface of the circular portion (101), and at least two springs (13) are fixedly connected to one side of the cushion block (12), one end of the two springs (13) is fixedly connected to the cushion block (12), and the other end is connected to the same hanging ring (14), and the hanging ring (14) is hung and matched with the vertical bars (11) to realize the fixing of the main closing plate (2) on the opening surface of the circular portion (101).

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