An explosion-proof flow cell

Abstract

The present application relates to a kind of detecting instruments, especially relates to a kind of anti-explosion flow cell, including optical fiber connecting mechanism and fixing mechanism, fixing mechanism includes the body and connecting portion connected, collimator is arranged in fixing mechanism, collimator is provided with flange portion, flange portion is installed in the outer ring of body;Cover of connecting portion is connected with the body and flange portion is tightly pressed in the outer ring of body;Optical fiber connecting mechanism includes fixing piece, the annular portion of fixing piece is installed in the outer ring of connecting portion;Movable part, sleeve portion of movable part is provided with first hook-shaped portion, is connected with the second hook-shaped portion of locking portion, for locking fixing piece;The end surface of first hook-shaped portion is towards the annular portion of fixing piece setting, can rotate locking portion and make the end surface of first hook-shaped portion the annular portion of fixing piece tightly press in the outer ring of connecting portion.The present application can be achieved multi-stage sealing by setting superimposed connecting portion, fixing piece, movable part and other mechanisms on the first end side of collimator, and easy to disassemble and install.

Description

Technical Field

[0001] This invention relates to a testing instrument, and more particularly to an explosion-proof flow cell. Background Technology

[0002] The description in this section provides only background information related to the disclosure of this invention and does not constitute prior art.

[0003] A flow cell for liquid detection is a detection instrument that uses light to pass through a liquid and analyzes the light. It requires an area for liquid flow, through which light is transmitted to achieve the aforementioned functions. In some scenarios, it is also necessary to detect corrosive liquids, especially highly corrosive chloroacetic acid. Existing flow cells have poor sealing, often resulting in leakage, especially at the connection between the flow cell and the optical fiber, which can cause structural damage. Furthermore, while some existing flow cells have made efforts in sealing, their cumbersome structures affect the ease of installation.

[0004] It should be noted that the above description of the technical background is only for the purpose of providing a clear and complete explanation of the technical solutions of the present invention and facilitating understanding by those skilled in the art. It should not be assumed that the above technical solutions are known to those skilled in the art simply because they have been described in the background section of this invention. Summary of the Invention

[0005] The purpose of this invention is to provide an explosion-proof flow pool that can achieve multi-level sealing by setting a superimposed connecting part, fixing part, moving part and other mechanism on one side of the first end of the collimator, which has good sealing performance and is easy to disassemble and install.

[0006] To achieve the above objectives, the present invention discloses an explosion-proof flow pool having a first end and a second end opposite to each other, and the explosion-proof flow pool including an optical fiber connection mechanism and a fixing mechanism in sequence from the first end to the second end.

[0007] The fixing mechanism includes a connecting part and a body connected sequentially from its first end to its second end, and the body has a through hole for connecting optical fibers.

[0008] The fixing mechanism is equipped with a collimator. The first end of the collimator is provided with a connector, which is connected to the output end of the optical fiber. The second end of the collimator is inserted into the through hole. A flange is provided between the first end and the second end of the collimator. The inner wall of the through hole facing the second end of the collimator is provided with a radially concave outer ring of the main body. The flange is installed in the outer ring of the main body.

[0009] The inner wall of the first end of the connecting part is provided with a radially concave outer ring of the connecting part, and the second end of the connecting part is provided with a cover body, which is connected to the body body and abuts the flange part against the outer ring of the body body;

[0010] The optical fiber connection mechanism includes:

[0011] A fixing component is sleeved on the optical fiber, and an annular portion is provided between the first end and the second end of the fixing component. The annular portion is installed in the outer ring of the connecting portion.

[0012] The movable component includes a sleeve portion and a locking portion. The sleeve portion is sleeved over the optical fiber, and a first hook-shaped portion is provided at the second end of the sleeve portion. The locking portion has a first end and a second end disposed opposite to each other. The first end of the locking portion is provided with a second hook-shaped portion that matches the first hook-shaped portion. The first end of the locking portion is sleeved over the second end of the sleeve portion, and the second end of the locking portion is sleeved over the first end of the connecting portion and threadedly connected to the first end of the connecting portion.

[0013] The end face of the first hook-shaped portion at the second end of the sleeve portion is disposed facing the annular portion of the fixing member, so that by rotating the locking portion, the end face of the first hook-shaped portion at the second end of the sleeve portion can press the annular portion of the fixing member against the outer ring of the connecting portion.

[0014] As a further description of the above technical solution, the size of the annular portion of the fastener matches the size of the outer ring of the connecting portion, so that when the fastener is locked, the end face of the first hook-shaped portion at the second end of the sleeve portion together abuts the annular portion of the fastener against the end face of the outer ring of the connecting portion.

[0015] As a further description of the above technical solution, a sealing ring is provided between the end face of the first hook-shaped portion at the second end of the sleeve portion and the end face of the annular portion of the fixing member and the outer ring of the connecting portion.

[0016] As a further description of the above technical solution, a sealing ring is provided between the cover and the flange.

[0017] As a further description of the above technical solution, a sealing ring is provided between the flange and the outer ring of the body.

[0018] As a further description of the above technical solution, the first end of the fixing member extends into the sleeve portion, and a sealing ring is provided between the first end of the fixing member and the optical fiber.

[0019] As a further description of the above technical solution, the sleeve portion is provided with an annular protrusion limiting portion, which is located on the side of the first hook portion facing the first end of the sleeve portion, so that the second hook portion is limited to the position between the first hook portion and the limiting portion.

[0020] As a further description of the above technical solution, the connection between the optical fiber and the fixing member is provided with an external hexagon, and the inner wall of the second end of the fixing member is provided with an internal hexagon that matches the external hexagon of the optical fiber.

[0021] As a further description of the above technical solution, the outer wall of the first end of the fastener is provided with an external hexagon.

[0022] By employing the above technical solutions, the beneficial effects of the present invention are as follows:

[0023] The explosion-proof flow cell of the present invention can achieve multi-level sealing by setting a superimposed connecting part, fixing part, and moving part on one side of the first end of the collimator. It is easy to disassemble and install. Specifically, the locking part of the moving part is tightened on the connecting part, so that the fixing part is pressed against the outer ring of the connecting part. The connecting part itself, with the cover at its second end, also presses the flange of the collimator against the outer ring of the main body. This makes the internal optical fiber have better sealing performance, preventing corrosive gases in the air from entering and damaging the internal parts, or water vapor from entering and forming condensate, which would affect the detection results.

[0024] To further understand the features and technical content of the present invention, please refer to the following detailed description and drawings of the present invention. However, the drawings provided are for reference and illustration only and are not intended to limit the present invention. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments or prior art of this specification, the drawings used in the description of the embodiments or prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this specification. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a cross-sectional view of an explosion-proof flow tank provided in the embodiments of this specification;

[0027] Figure 2 This is a perspective view of the connection part of an explosion-proof flow tank provided in the embodiments of this specification;

[0028] Figure 3 This is a side view of a fastener for an explosion-proof flow pool provided in the embodiments of this specification;

[0029] Figure 4 This is a cross-sectional view of a fastener for an explosion-proof flow pool provided in the embodiments of this specification;

[0030] Figure 5 This is a three-dimensional view of an explosion-proof flow cell provided in the embodiments of this specification;

[0031] Figure 6 This is a schematic diagram showing the alignment of the annular portion and the connecting portion of an explosion-proof flow tank provided in the embodiments of this specification;

[0032] In the picture:

[0033] 100. Fiber optic cable;

[0034] 1. Body; 11. Through hole; 12. Outer ring of the body;

[0035] 2. Collimator; 21. Connector; 22. Flange;

[0036] 3. Connecting part; 31. Outer ring of connecting part; 32. Cover;

[0037] 4. Fastener; 41. Annular part;

[0038] 5. Moving part; 51. Sleeve part; 511. First hook-shaped part; 512. Limiting part; 52. Locking part; 521. Second hook-shaped part. Detailed Implementation

[0039] To enable those skilled in the art to better understand the technical solutions in this specification, the technical solutions in the embodiments of this specification will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this specification, and not all embodiments. Based on the embodiments in this specification, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this specification.

[0040] The following specific embodiments illustrate the implementation of the present invention. Those skilled in the art can understand the advantages and effects of the present invention from the content disclosed in this specification. The present invention can be implemented or applied through other different specific embodiments, and various details in this specification can also be modified and changed based on different viewpoints and applications without departing from the concept of the present invention. Furthermore, the accompanying drawings of the present invention are for simple illustrative purposes only and are not depictions of actual dimensions; this is stated in advance. The following embodiments will further describe the relevant technical content of the present invention in detail, but the disclosed content is not intended to limit the scope of protection of the present invention.

[0041] It should be understood that while terms such as "first," "second," and "third" may be used in this document to describe various components or signals, these components or signals should not be limited by these terms. These terms are primarily used to distinguish one component from another, or one signal from another. Furthermore, the term "or" as used herein should, as appropriate, include any combination of one or more of the related listed items.

[0042] Please see Figure 1-6 This is an explosion-proof flow pool in this embodiment. The explosion-proof flow pool has a first end and a second end that are opposite to each other. The explosion-proof flow pool includes an optical fiber connection mechanism and a fixing mechanism in sequence from the first end to the second end.

[0043] The fixing mechanism includes a connecting part 3 and a body 1 connected sequentially from its first end to its second end. The body 1 has a through hole 11 for connecting the optical fiber 100.

[0044] The fixed mechanism is equipped with a collimator 2. The collimator 2 has a first end and a second end that are arranged opposite to each other. The first end of the collimator 2 is provided with a connector 21, which is connected to the output end of the optical fiber 100. The second end of the collimator 2 is inserted into the through hole 11. A flange 22 is provided between the first end and the second end of the collimator 2. The inner wall of the through hole 11 facing the second end of the collimator 2 is provided with a radially concave outer ring 12 of the body. The flange 22 is installed in the outer ring 12 of the body.

[0045] The inner wall of the first end of the connecting part 3 is provided with a radially recessed outer ring 31, and the second end of the connecting part 3 is provided with a cover 32. The cover 32 is connected to the body 1 and the flange 22 is pressed against the outer ring 12 of the body.

[0046] The fiber optic connection mechanism includes:

[0047] Fixing member 4 is sleeved on the outside of optical fiber 100. Fixing member 4 has a first end and a second end that are arranged opposite to each other. An annular part 41 is provided between the first end and the second end of fixing member 4. The annular part 41 is installed in the outer ring 31 of the connecting part.

[0048] The movable part 5 includes a sleeve part 51 and a locking part 52. The sleeve part 51 has a first end and a second end that are disposed opposite to each other. The sleeve part 51 is sleeved on the outside of the optical fiber 100. The second end of the sleeve part 51 is provided with a first hook-shaped part 511. The locking part 52 has a first end and a second end that are disposed opposite to each other. The first end of the locking part 52 is provided with a second hook-shaped part 521 that matches the first hook-shaped part 511. The first end of the locking part 52 is sleeved on the second end of the sleeve part 51. The second end of the locking part 52 is sleeved on the first end of the connecting part 3 and is threadedly connected to the first end of the connecting part 3.

[0049] The end face of the first hook-shaped portion 511 at the second end of the sleeve portion 51 is provided facing the annular portion 41 of the fixing member 4, so that by rotating the locking portion 52, the end face of the first hook-shaped portion 511 at the second end of the sleeve portion 51 will press the annular portion 41 of the fixing member 4 against the outer ring 31 of the connecting portion.

[0050] Regarding the above structure, during installation, the collimator 2 can be pre-installed in the through hole 11 of the body 1. Specifically, the flange 22 of the collimator 2 is embedded in the annular space formed by the recess of the outer ring 12 of the body 1 within the through hole 11. Then, the cover 32 of the connecting part 3 is connected to the body 1. Specifically, the outer wall of the body 1 has a first mounting hole, and the cover 32 also has a second mounting hole that matches the mounting hole. By using an external fastener to simultaneously penetrate the first and second mounting holes, the cover 32 is detachably fixed to the outer wall of the body 1. This allows the flange 22 of the collimator 2 to be pressed tightly into the outer ring 12 of the body 1 using the cover 32, achieving the first seal. Then, the fixing member 4 is sleeved on the optical fiber 100, and the optical fiber 100 is inserted along the first end direction of the connecting part 3, so that the output end of the optical fiber 100 is simultaneously inserted into the connector of the collimator 2. At this time, the locking part 52 of the movable member 5 can be screwed in towards the first end direction of the connecting part 3. Due to the interlocking and cooperation between the first hook-shaped part 511 of the sleeve part 51 and the second hook-shaped part 521 of the locking part 52, the locking part 52 can be screwed in so that the end face of the first hook-shaped part 511 of the sleeve part 51 can be driven to press against the annular part 41 of the fixing member 4 during the screwing process, so that the annular part 41 of the fixing member 4 is pressed against the outer ring 31 of the connecting part, thus achieving a second seal.

[0051] During the above-described usage process, the operator only needs to sequentially install the components according to their corresponding stacking relationships to complete the structural connection. The locking part 52 is rotated and tightened, enabling rapid installation. Conversely, when disassembly is required, simply rotating the locking part 52 in the opposite direction will disassemble the structure. This structure improves installation efficiency. Furthermore, the collimator 2 and the annular part 41 are sealed at both ends, effectively achieving multi-stage sealing of the explosion-proof flow pool from a physical structural perspective. This provides excellent sealing performance, preventing the penetration of corrosive liquids from the through-hole side and indirectly reducing potential structural damage.

[0052] Meanwhile, in the above structure, when it is necessary to remove the optical fiber 100, only the movable part 5 needs to be removed, without removing the connecting part 3 connected to the main body, making it easy to disassemble.

[0053] Furthermore, the size of the annular portion 41 of the fastener 4 matches the size of the outer ring 31 of the connecting portion, so that when the fastener 4 is locked, the end face of the first hook-shaped portion 511 at the second end of the sleeve portion 51 together abuts the annular portion 41 of the fastener 4 against the end face of the outer ring 31 of the connecting portion. See details [link to documentation]. Figure 6 In this embodiment, the end face of the outer ring 31 of the connecting portion and the end face of the annular portion 41 facing the first end of the fixing member 4 form a complete plane, so that the first hook-shaped portion 511 can press the two end faces together, forming a good sealing effect between the first hook-shaped portion 511, the annular portion 41, and the outer ring 31 of the connecting portion. Furthermore, a sealing ring is provided between the end face of the first hook-shaped portion 511 at the second end of the sleeve portion 51 and the end face of the annular portion 41 and the outer ring 31 of the connecting portion of the fixing member 4. The sealing ring provided here further enhances the sealing effect between the adjacent parts of the first hook-shaped portion 511, the annular portion 41, and the outer ring 31 of the connecting portion.

[0054] Furthermore, a sealing ring is provided between the cover 32 and the flange 22, and a sealing ring is also provided between the flange 22 and the outer ring 12 of the main body. Through this structural arrangement, a good sealing effect is achieved both front and rear of the flange 22 when it is pressed against the cover 32. The flange 22, being the structure closest to the main body 1 in the direction of holding the liquid to be tested, has its sealing performance well guaranteed. It is worth noting that the axial diameter of the flange 22 is significantly larger than the diameter of other parts of the collimator 2, resembling a protruding disc-shaped structure.

[0055] Furthermore, the first end of the fixing member 4 extends into the sleeve portion 51, and a sealing ring is provided between the first end of the fixing member 4 and the optical fiber 100. See also [link to relevant documentation] for details. Figure 4 An annular groove for placing a sealing ring is provided on the inner wall of the first end of the fixing member 4. The diameter of the fixing member 4 matches that of the optical fiber 100, so that the sealing ring is tightly pressed between the fixing member 4 and the outer wall of the optical fiber 100, forming a good sealing effect.

[0056] Further, please see Figure 1 The sleeve portion 51 is provided with an annular protrusion limiting portion 521. The limiting portion 521 is located on the side of the first hook-shaped portion 511 facing the first end of the sleeve portion 51, so that the second hook-shaped portion 521 is limited to a position between the first hook-shaped portion 511 and the limiting portion 512. Specifically, by providing the limiting portion 512, the locking portion 52 can only move within a limited space relative to the sleeve portion 51, so that the locking portion 52 can still rotate relative to the sleeve portion 51 before it is fully locked, and the sleeve portion 51 itself cannot be completely separated from the locking portion 52, thus preventing the part from falling off and being lost.

[0057] Further, please see Figure 3-5 The connection between the optical fiber 100 and the fixing member 4 is provided with an external hexagon, and the inner wall of the second end of the fixing member 4 is provided with an internal hexagon that matches the external hexagon of the optical fiber 100. Simultaneously, the outer wall of the first end of the fixing member 4 is provided with an external hexagon. With this structure, when the fixing member 4 is fitted onto the optical fiber 100, the relative rotation angle between the two can be limited by the cooperation of the internal and external hexagonal structures. Furthermore, the external hexagon on the outer wall of the fixing member 4 allows for the rotation of the fixing member 4, which in turn rotates the optical fiber 100, facilitating the installation and adjustment of the optical fiber 100.

[0058] In the cross-sectional and side views of the above embodiments, the first direction mentioned refers to the left side of the drawing, and the second direction refers to the right side of the drawing.

[0059] The content disclosed above is only a preferred and feasible embodiment of the present invention, and is not intended to limit the scope of the patent application of the present invention. Therefore, all equivalent technical changes made using the contents of the present invention specification and drawings are included in the scope of the patent application of the present invention.

[0060] The various embodiments in this specification are described in a progressive manner. The same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on describing the differences from other embodiments.

[0061] Although this application has been described by way of examples, those skilled in the art will know that this application has many modifications and variations without departing from the spirit of this application, and it is intended that the appended embodiments include these modifications and variations without departing from this application.

Claims

1. An explosion-proof flow tank, characterized in that, The explosion-proof flow pool has a first end and a second end, and the explosion-proof flow pool includes an optical fiber connection mechanism and a fixing mechanism in sequence from the first end to the second end. The fixing mechanism includes a connecting part and a body connected sequentially from its first end to its second end, and the body has a through hole for connecting optical fibers. The fixing mechanism is equipped with a collimator. The first end of the collimator is provided with a connector, which is connected to the output end of the optical fiber. The second end of the collimator is inserted into the through hole. A flange is provided between the first end and the second end of the collimator. The inner wall of the through hole facing the second end of the collimator is provided with a radially concave outer ring of the main body. The flange is installed in the outer ring of the main body. The inner wall of the first end of the connecting part is provided with a radially concave outer ring of the connecting part, and the second end of the connecting part is provided with a cover body, which is connected to the body body and abuts the flange part against the outer ring of the body body; The optical fiber connection mechanism includes: A fixing component is sleeved on the optical fiber, and an annular portion is provided between the first end and the second end of the fixing component. The annular portion is installed in the outer ring of the connecting portion. The movable component includes a sleeve portion and a locking portion. The sleeve portion is sleeved over the optical fiber, and a first hook-shaped portion is provided at the second end of the sleeve portion. The locking portion has a first end and a second end disposed opposite to each other. The first end of the locking portion is provided with a second hook-shaped portion that matches the first hook-shaped portion. The first end of the locking portion is sleeved over the second end of the sleeve portion, and the second end of the locking portion is sleeved over the first end of the connecting portion and threadedly connected to the first end of the connecting portion. Wherein, the end face of the first hook-shaped portion at the second end of the sleeve portion is disposed facing the annular portion of the fixing member, so that by rotating the locking portion, the end face of the first hook-shaped portion at the second end of the sleeve portion can press the annular portion of the fixing member against the outer ring of the connecting portion; The size of the annular portion of the fastener matches the size of the outer ring of the connecting portion, so that when the fastener is locked, the end face of the first hook-shaped portion at the second end of the sleeve portion together presses the annular portion of the fastener against the end face of the outer ring of the connecting portion.

2. The explosion-proof flow tank according to claim 1, characterized in that: A sealing ring is provided between the end face of the first hook-shaped portion at the second end of the sleeve portion and the end face of the annular portion of the fixing member and the outer ring of the connecting portion.

3. The explosion-proof flow tank according to claim 1, characterized in that: A sealing ring is provided between the cover and the flange.

4. The explosion-proof flow tank according to claim 1, characterized in that: A sealing ring is provided between the flange and the outer ring of the body.

5. The explosion-proof flow tank according to claim 1, characterized in that: The first end of the fixing member extends into the sleeve portion, and a sealing ring is provided between the first end of the fixing member and the optical fiber.

6. The explosion-proof flow tank according to claim 1, characterized in that: The sleeve portion is provided with an annular protrusion limiting portion, which is located on the side of the first hook portion facing the first end of the sleeve portion, so that the second hook portion is limited to the position between the first hook portion and the limiting portion.

7. The explosion-proof flow tank according to claim 1, characterized in that: The optical fiber is provided with an external hexagon at the connection point with the fixing member, and the inner wall of the second end of the fixing member is provided with an internal hexagon that matches the external hexagon of the optical fiber.

8. The explosion-proof flow tank according to claim 7, characterized in that: The outer wall of the first end of the fastener is provided with an external hexagon.

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