Explosion-proof gas flow monitoring instrument

Abstract

This utility model relates to the field of monitoring instrument technology, specifically disclosing an explosion-proof gas flow monitoring instrument, including an explosion-proof casing, a display, and two sets of mounting pipes respectively disposed on both sides of the explosion-proof casing. This utility model, through the arrangement of the explosion-proof casing, mounting pipes, moving blocks, moving components, and connecting components, allows the two sets of moving blocks to contact each other. Under the mutual squeezing force of the two sets of moving blocks, they slide on a sliding rod and compress a first spring, creating gaps between the two sets of moving blocks and the inner walls of the explosion-proof casing and the mounting pipes, thus enabling gas communication. The connecting components further secure the explosion-proof casing and the mounting pipes, facilitating installation and reducing the cumbersome process of switching on and off from the source. Furthermore, if improper installation occurs, it can be detected promptly and reinstalled, reducing installation time, improving installation efficiency, and minimizing resource waste.

Description

Technical Field

[0001] This utility model relates to the field of monitoring instrument technology, specifically to an explosion-proof gas flow monitoring instrument. Background Technology

[0002] Explosion-proof gas flow monitoring instruments adopt an explosion-proof certified design, completely eliminating the possibility of gas ignition by electric sparks or high temperatures through intrinsically safe circuits, explosion-proof housings, or potting technology. At its core is a high-sensitivity thermal / ultrasonic sensor for real-time and accurate flow measurement, and it integrates temperature and pressure compensation functions. It also incorporates anti-static components and an anti-electromagnetic interference module. Data can be linked to a PLC system to trigger over-limit alarms or emergency shutdowns, forming a complete safety protection chain.

[0003] A split-type flow monitoring instrument disclosed in existing patent publication number CN222635548U includes a second mounting ring and a threaded hole. When using this split-type flow monitoring instrument, a Pitot tube probe is inserted into the measuring pipe. The Pitot tube probe transmits a signal to the display, which shows the result. The threaded hole on the first mounting ring is aligned with the threaded hole on the second mounting ring, and then they are connected with fastening bolts. The differential pressure balancing valve is opened, allowing liquid to flow through the second split connecting pipe to the first split connecting pipe. The pressure sensor transmits values ​​to the display in real time, which are then displayed. The top cover facilitates subsequent inspection or cleaning. The sealing ring improves the connection between the first and second mounting rings, reducing liquid leakage from gaps. By installing the Pitot tube probe and differential pressure balancing valve in segments, the workload of personnel is reduced, the detection quality is improved, and subsequent maintenance and replacement are facilitated.

[0004] The installation of this device requires shutting off the source switch first, then turning it back on after installation, making the process cumbersome. If a gas leak occurs due to improper operation during installation, the source switch must be shut off again, increasing the number of steps, extending installation time, reducing work efficiency, and potentially causing significant resource waste. To address these issues, an explosion-proof gas flow monitoring instrument is proposed. Utility Model Content

[0005] The purpose of this invention is to provide an explosion-proof gas flow monitoring instrument to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An explosion-proof gas flow monitoring instrument includes an explosion-proof casing, a display, and two sets of mounting pipes respectively disposed on both sides of the explosion-proof casing. The explosion-proof casing and the mounting pipes are each slidably provided with a moving block through a moving component. The explosion-proof casing is connected to the mounting pipes through a connecting component.

[0008] The moving component includes a fixed plate and a sliding rod. The two sets of fixed plates are respectively fixedly connected to the explosion-proof pipe shell and the installation pipe. The two sets of sliding rods are respectively fixedly connected to the side of the two sets of fixed plates that are close to each other. The side of the moving block that is close to the fixed plate has a sliding hole for sliding with the sliding rod. The sliding rod is provided with a reset component for resetting the sliding of the moving block.

[0009] In one alternative embodiment: the connecting assembly includes a mounting groove and a retaining ring. The mounting groove is formed on one side of the explosion-proof pipe shell, and the retaining ring is fixedly connected to the outer surface of one end of the explosion-proof pipe shell. One end of the mounting tube is snapped into the mounting groove, and a rotating ring is rotatably connected to the mounting tube. The inner wall of the rotating ring is threadedly connected to the outer wall of the retaining ring. A snap-fit ​​component for positioning the mounting tube is provided in the mounting groove.

[0010] In one alternative: the reset element includes a first spring, which is sleeved on the slide rod, with one end of the first spring connected to the side of the fixed plate near the slide rod, and the other end of the first spring connected to the side of the moving block near the fixed plate.

[0011] In one alternative: the snap-fit ​​component includes a groove and a steel ball, two sets of the grooves are formed on both sides of the inner wall of the mounting groove, the steel ball is slidably connected in the groove, a second spring is connected to one side of the steel ball, the end of the second spring away from the steel ball is connected to one side of the inner wall of the groove, and the mounting tube has a snap-fit ​​groove on both sides for engaging the steel ball.

[0012] In one alternative: the display is mounted on an explosion-proof housing.

[0013] In one alternative: a limiting block is fixedly connected to one end of the slide rod near the moving block, and the limiting block is slidably connected within the sliding hole.

[0014] In one alternative: the outer surface of the movable block is provided with a rubber layer.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This utility model incorporates an explosion-proof casing, an installation pipe, movable blocks, a movable assembly, and a connecting assembly. Two sets of movable blocks contact each other, and under the mutual pressure of these blocks, they slide on a sliding rod, compressing a first spring. This creates gaps between the two sets of movable blocks and the inner walls of the explosion-proof casing and the installation pipe, allowing gas to flow. The connecting assembly further secures the explosion-proof casing and the installation pipe, facilitating installation and reducing the cumbersome process of switching on and off from the source. Furthermore, any improper installation can be detected and corrected promptly, reducing installation time, improving efficiency, and minimizing resource waste.

[0017] This invention, by setting a reset component, can reset the sliding of the moving block, causing the moving block to block the outlet, reducing excessive gas leakage and resource waste.

[0018] This invention, by setting a snap-fit ​​component, can limit the insertion of the installation tube, making it easier to rotate the rotating ring and connect it with the fixed ring. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model.

[0020] Figure 2 This is a schematic diagram of the structure where the card slot is located in this utility model.

[0021] Figure 3 This is a schematic diagram of the structure where the mounting groove is located in this utility model.

[0022] Figure 4 This is a schematic diagram of the structure where the sliding hole is located in this utility model.

[0023] In the diagram: 101, explosion-proof casing; 102, mounting pipe; 103, display; 104, mounting groove; 105, moving block; 106, first spring; 107, slot; 108, groove; 109, second spring; 110, steel ball; 111, slide rod; 112, sliding hole; 113, fixing plate; 114, fixing ring; 115, rotating ring. Detailed Implementation

[0024] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figures 1-4In this embodiment, the explosion-proof gas flow monitoring instrument includes an explosion-proof pipe shell 101, a display 103, and two sets of mounting pipes 102 respectively disposed on both sides of the explosion-proof pipe shell 101. The explosion-proof pipe shell 101 and the mounting pipes 102 are each slidably provided with a moving block 105 through a moving component. The explosion-proof pipe shell 101 is connected to the mounting pipes 102 through a connecting component.

[0027] The movable component includes a fixed plate 113 and a sliding rod 111. Two sets of fixed plates 113 are fixedly connected to the explosion-proof housing 101 and the installation pipe 102, respectively. Two sets of sliding rods 111 are fixedly connected to the sides of the two sets of fixed plates 113 that are close to each other. The movable block 105 has a sliding hole 112 on the side close to the fixed plate 113 for sliding with the sliding rod 111. The sliding rod 111 is provided with a reset member for resetting the sliding of the movable block 105. After the two sets of movable blocks 105 come into contact, they slide on the sliding rod 111 under the action of mutual squeezing force and squeeze the reset member, so that the two sets of movable blocks 105 respectively create gaps with the inner walls of the explosion-proof housing 101 and the installation pipe 102, so that the gas can be connected and the cumbersome switch needs to be turned on and off from the source is reduced.

[0028] The connecting assembly includes a mounting groove 104 and a fixing ring 114. The mounting groove 104 is formed on one side of the explosion-proof pipe shell 101. The fixing ring 114 is fixedly connected to the outer surface of one end of the explosion-proof pipe shell 101. One end of the mounting tube 102 is snapped into the mounting groove 104. A rotating ring 115 is rotatably connected to the mounting tube 102. The inner wall of the rotating ring 115 is threadedly connected to the outer wall of the fixing ring 114. A snap-fit ​​component for positioning the mounting tube 102 is provided in the mounting groove 104. When the mounting tube 102 is snapped into the mounting groove 104, the snap-fit ​​component positions the mounting tube 102. Rotating the rotating ring 115 causes the inner wall of the rotating ring 115 to be threadedly connected to the outer wall of the fixing ring 114, further fixing the explosion-proof pipe shell 101 and the mounting tube 102.

[0029] The reset component includes a first spring 106, which is sleeved on the slide rod 111. One end of the first spring 106 is connected to the side of the fixed plate 113 near the slide rod 111, and the other end of the first spring 106 is connected to the side of the moving block 105 near the fixed plate 113. When the installation tube 102 is pulled outward, the two sets of moving blocks 105 lose their relative compressive force. The elastic force of the first spring 106 is used to push the moving block 105 outward, so that the moving block 105 blocks the outlet and reduces gas leakage.

[0030] The snap-fit ​​component includes a groove 108 and a steel ball 110. Two sets of grooves 108 are formed on both sides of the inner wall of the mounting groove 104. The steel ball 110 is slidably connected in the groove 108. A second spring 109 is connected to one side of the steel ball 110. The end of the second spring 109 away from the steel ball 110 is connected to one side of the inner wall of the groove 108. Both sides of the mounting tube 102 are provided with slots 107 for engaging the steel ball 110. When the mounting tube 102 is inserted into the mounting groove 104, the steel ball 110 is squeezed and moves upward in the groove 108, squeezing the second spring 109. When it slides to the slot 107, the elastic force of the second spring 109 pops the steel ball 110 out and engages it in the slot 107, which facilitates the rotation of the rotating ring 115 and its connection with the fixed ring 114.

[0031] The display 103 is mounted on the explosion-proof housing 101 to facilitate the observation of data information by staff.

[0032] The end of the slide rod 111 near the moving block 105 is fixedly connected to a limiting block. The limiting block is slidably connected in the sliding hole 112. By setting the limiting block, the slide rod 111 can be prevented from detaching outward in the sliding hole 112 and losing its guidance for the movement of the moving block 105.

[0033] The outer surface of the movable block 105 is provided with a rubber layer. By providing the rubber layer, the rubber layer is used for sealing when not installed, which can reduce the gap between the movable block 105 and the inner wall of the explosion-proof pipe shell 101 and the installation pipe 102, and avoid gas leakage.

[0034] The working principle of this utility model is as follows: In use, the installation tube 102 is first inserted into the installation groove 104. During the insertion process, the steel ball 110 is squeezed and moves upward in the groove 108, squeezing the second spring 109. When it slides to the slot 107, the elastic force of the second spring 109 pops the steel ball 110 out and locks it into the slot 107. After the two sets of moving blocks 105 come into contact, they slide on the slide rod 111 under the action of mutual squeezing force, and squeeze the first spring 106, so that the two sets of moving blocks 105 respectively create gaps with the inner walls of the explosion-proof pipe shell 101 and the installation tube 102, so that the gas can be connected. Rotating the rotating ring 115 makes the inner wall of the rotating ring 115 threadedly connected to the outer wall of the fixed ring 114, which is convenient for installation and reduces the tedious switch-on and switch-off process required from the source. At the same time, if improper installation occurs, it can be detected in time and reinstalled, reducing installation time, improving installation efficiency, and reducing a lot of waste of resources.

[0035] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the present utility model.

Claims

1. An explosion-proof gas flow monitoring instrument, comprising an explosion-proof pipe shell (101), a display (103) and two groups of mounting pipes (102) arranged on both sides of the explosion-proof pipe shell (101), characterized in that: Both the explosion-proof casing (101) and the mounting pipe (102) are equipped with movable blocks (105) that are slidably arranged through movable components. The explosion-proof casing (101) is connected to the mounting pipe (102) through a connecting component. The movable component includes a fixed plate (113) and a sliding rod (111). The two sets of fixed plates (113) are fixedly connected to the explosion-proof shell (101) and the mounting tube (102) respectively. The two sets of sliding rods (111) are fixedly connected to the two sets of fixed plates (113) on the side that are close to each other. The movable block (105) has a sliding hole (112) on the side close to the fixed plate (113) for sliding with the sliding rod (111). The sliding rod (111) is provided with a reset member for resetting the sliding of the movable block (105).

2. The explosion-proof gas flow monitoring instrument of claim 1, wherein: The connecting assembly includes a mounting groove (104) and a fixing ring (114). The mounting groove (104) is opened on one side of the explosion-proof pipe shell (101). The fixing ring (114) is fixedly connected to the outer surface of one end of the explosion-proof pipe shell (101). One end of the mounting tube (102) is snapped into the mounting groove (104). A rotating ring (115) is rotatably connected to the mounting tube (102). The inner wall of the rotating ring (115) is threadedly connected to the outer wall of the fixing ring (114). A snap-fit ​​component for positioning the mounting tube (102) is provided in the mounting groove (104).

3. The explosion-proof gas flow monitoring instrument of claim 1, wherein: The reset component includes a first spring (106), which is sleeved on the slide rod (111). One end of the first spring (106) is connected to the side of the fixed plate (113) near the slide rod (111), and the other end of the first spring (106) is connected to the side of the moving block (105) near the fixed plate (113).

4. The explosion-proof gas flow monitoring instrument of claim 2, wherein: The snap-fit ​​component includes a groove (108) and a steel ball (110). Two sets of grooves (108) are formed on both sides of the inner wall of the mounting groove (104). The steel ball (110) is slidably connected in the groove (108). A second spring (109) is connected to one side of the steel ball (110). The end of the second spring (109) away from the steel ball (110) is connected to one side of the inner wall of the groove (108). Both sides of the mounting tube (102) are provided with snap-fit ​​grooves (107) for engaging the steel ball (110).

5. The explosion-proof gas flow monitoring instrument according to claim 1, characterized in that: The display (103) is mounted on the explosion-proof housing (101).

6. The explosion-proof gas flow monitoring instrument according to claim 1, characterized in that: The sliding rod (111) is fixedly connected to a limiting block at one end near the moving block (105), and the limiting block is slidably connected in the sliding hole (112).

7. The explosion-proof gas flow monitoring instrument according to claim 1, characterized in that: The outer surface of the movable block (105) is provided with a rubber layer.

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