Mass flow meter with micro channel structure

Abstract

The utility model relates to the micro -channel structure mass flowmeter field especially relates to a kind of mass flowmeter with micro -channel structure. Including flowmeter body and connecting structure, the arc surface of flowmeter body is fixedly connected with display table, both ends of flowmeter body are fixedly connected with connecting piece, the end of connecting piece away from flowmeter body is provided with connecting pipe, connecting pipe is connected with connecting piece by means of connecting structure, the lower end of flowmeter body is equipped with auxiliary structure, the auxiliary structure includes auxiliary groove, the inside of flowmeter body is opened in the auxiliary groove, the inner wall of auxiliary groove is slidably connected with baffle. The utility model provides a kind of mass flowmeter with micro -channel structure has not only can be cleaned inside flowmeter body, but also can be conveniently regularly flowmeter body is overhauled, not only can reduce the maintenance cost of flowmeter body, but also can increase the service life of flowmeter body The advantage of.

Description

Technical Field

[0001] This utility model relates to the field of microchannel structure mass flow meters, and in particular to a mass flow meter with a microchannel structure. Background Technology

[0002] A microchannel mass flow meter is an instrument used to accurately measure the flow rate of fluids. Its working principle is based on the mass change of a fluid as it flows through tiny channels. It typically utilizes microchannel technology, thermal conductivity technology, or other similar micro-sensing technologies to detect flow rate.

[0003] Existing technologies, such as the utility model patent with publication number CN216925684U, disclose a mass flow meter based on a MEMS mass flow sensor chip. This patent includes a microchannel cap with several raised positioning posts at the bottom of its solid structure. Each positioning post of the microchannel cap is inserted into a corresponding positioning hole on a PCB substrate, and the bottom of the solid structure contacts the PCB substrate and is fixed with non-conductive adhesive. The MEMS mass flow sensor chip is located in the space formed between the hollow channel of the microchannel cap and the PCB substrate, while the conditioning circuit is located outside the microchannel cap. This mass flow meter is formed by assembling a separate microchannel cap and a PCB substrate. The positioning holes and positioning posts ensure accurate assembly positions and reduce the processing difficulty during packaging alignment, which is beneficial for ensuring airtightness, structural consistency, and improving packaging efficiency.

[0004] The inventors discovered during use that current microchannel mass flow meters present significant difficulties in cleaning and maintaining the lower end of the flow meter. Traditional flow meter designs typically employ a closed structure, preventing users from directly cleaning, inspecting, and maintaining the lower end. This design makes equipment maintenance inconvenient, especially during long-term use, as impurities and deposits in the fluid can affect the flow meter's measurement accuracy, and may even lead to blockages or malfunctions. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing microchannel mass flow meters, where it is difficult to open, clean, and maintain the lower end of the flow meter.

[0006] To solve the above technical problems, this utility model provides a mass flow meter with a microchannel structure, comprising: a flow meter body and a connecting structure. A display meter is fixedly connected to the arc surface of the flow meter body. Connectors are fixedly connected to both ends of the flow meter body. A connecting pipe is provided at the end of each connector away from the flow meter body. The connecting pipe is connected to the connector via the connecting structure. An auxiliary structure is provided at the lower end of the flow meter body. The auxiliary structure includes an auxiliary groove, which is formed inside the flow meter body. A baffle is slidably connected to the inner wall of the auxiliary groove, and a component is fixedly connected to the lower surface of the baffle. Four frame plates are arranged in pairs, with several connecting rods fixedly connected to the side of each pair of frame plates that are close to each other. Insert rods are slidably connected to the inner walls of the frame plates and are slidably connected to the flow meter body. Auxiliary rods are fixedly connected to the side of each pair of frame plates that are far from each other. A rotating shaft is rotatably connected to the side of two auxiliary rods that are close to each other. An arc plate is fixedly connected to the arc surface of the rotating shaft. Coil springs are sleeved on the arc surfaces at both ends of the rotating shaft. The two ends of the coil springs are fixedly connected to the arc plate and the auxiliary plate, respectively. A spring is sleeved on the arc surface of the insert rod. The two ends of the spring are fixedly connected to the insert rod and the frame plate, respectively.

[0007] The effect achieved by the above components is as follows: when it is necessary to inspect or clean the inside of the flow meter body, the insertion rod is pulled to move, the insertion rod drives the spring to stretch, and then the insertion rod is separated from the flow meter body. Then the frame plate is pulled to move, the frame plate drives the auxiliary rod to move, the auxiliary rod drives the arc plate to move, the arc plate drives the rotating shaft to rotate between the auxiliary plates, the arc plate drives the coil spring to retract, and then the frame plate drives the baffle to move. Then the baffle slides on the inner wall of the auxiliary groove. The rebound force of the spring and the coil spring can respectively drive the insertion rod and the arc plate to reset.

[0008] Preferably, a connecting rod is fixedly connected to one side of the two insertion rods that are close to each other, and the connecting rod has a circular cross-section.

[0009] The effect achieved by the above components is that the connecting rod can pull two insert rods at the same time, avoiding the need to pull the insert rods one by one to move them.

[0010] Preferably, a sealing gasket, which is a rubber gasket, is fixedly connected to the side of the baffle closest to the flow meter body.

[0011] The effect achieved by the above components is that the sealing gasket can increase the friction between the baffle and the flow meter body, and prevent leakage when the baffle and the flow meter body are sealed.

[0012] Preferably, the arc plate is a silicone plate, and the arc plate is attached to the flow meter body.

[0013] The effect achieved by the above components is that the silicone material can not only protect the flow meter body, but also easily fit and seal with the flow meter body.

[0014] Preferably, a connecting structure is provided on the side of the two connecting parts that are close to each other. The connecting structure includes four connecting blocks, which are divided into two groups of two. Both groups of connecting blocks are fixedly connected to the connecting parts. A screw is fixedly connected to the side of each group of connecting blocks that are close to each other. Opposite threads are formed on the arc surfaces at both ends of the screw. Threaded rings are threaded to the arc surfaces at both ends of the screw. A connecting ring is rotatably connected to the ends of the two threaded rings that are far from each other. An installation rod is fixedly connected to the arc surface of the connecting ring. A fixing block is fixedly connected to the end of the installation rod that is far from the connecting ring. The fixing block is slidably connected to the connecting parts. The connecting tube is slidably connected to the connecting ring. The fixing block abuts against the connecting tube.

[0015] The effect achieved by the above components is as follows: when it is necessary to install the connecting pipe, pull the connecting pipe to move it, then insert the connecting pipe into the connector, then rotate the threaded ring to move it, the threaded ring drives the connecting ring to slide on the arc surface of the screw, the connecting ring drives the mounting rod to move, the mounting rod drives the fixing block to move, and then the fixing block connects with the connector to fix the connecting pipe.

[0016] Preferably, the inner wall of the fixing block is fixedly connected with a plurality of anti-slip sleeves, the anti-slip sleeves being rubber sleeves.

[0017] The effect achieved by the above components is that the anti-slip sleeve can increase the friction between the fixed block and the connector, and prevent the connector from sliding when it is connected to the fixed block.

[0018] Preferably, the arc surface of the threaded ring is provided with a groove, and a plurality of the grooves are evenly distributed on the threaded ring.

[0019] The effect achieved by the above components is that the groove can increase the friction between the hand and the threaded ring, preventing slippage when rotating the threaded ring.

[0020] Compared with related technologies, the mass flow meter with a microchannel structure provided by this utility model has the following beneficial effects: This invention provides a mass flow meter with a microchannel structure. By setting an auxiliary structure, it not only facilitates the cleaning of the inside of the flow meter body, but also facilitates the regular maintenance of the flow meter body. This not only reduces the maintenance cost of the flow meter body, but also increases the service life of the flow meter body.

[0021] By setting up a connection structure, the connecting pipe can be installed easily, avoiding the use of multiple bolts for fixing as in existing technologies, and greatly reducing the installation time of the connecting pipe. Attached Figure Description

[0022] Figure 1 A schematic diagram of a mass flow meter with a microchannel structure provided by this utility model; Figure 2 for Figure 1 The diagram shows the auxiliary structure. Figure 3 for Figure 2 The enlarged view of point A shown; Figure 4 for Figure 1 The diagram shows a partial structural representation. Figure 5 for Figure 4 The enlarged view at point B is shown below; Figure 6 for Figure 1 The diagram shows the connection structure. Figure 7 for Figure 6 The enlarged view at point C is shown.

[0023] The following are the labeling elements in the diagram: 1. Display meter; 2. Flow meter body; 3. Connecting pipe; 4. Auxiliary structure; 401. Arc plate; 402. Auxiliary groove; 403. Connecting rod; 404. Insert rod; 405. Frame plate; 406. Connecting rod; 407. Baffle; 408. Rotating shaft; 409. Coil spring; 410. Auxiliary rod; 411. Spring; 412. Sealing gasket; 5. Connecting structure; 51. Screw; 52. Connecting ring; 53. Threaded ring; 54. Mounting rod; 55. Connecting block; 56. Anti-slip sleeve; 57. Fixing block; 58. Groove; 6. Connecting piece. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0025] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0026] Please see Figures 1 to 7This utility model provides a mass flow meter with a microchannel structure, including: a flow meter body 2 and a connecting structure 5. A display meter 1 is fixedly connected to the arc surface of the flow meter body 2. Both ends of the flow meter body 2 are fixedly connected to connectors 6. A connecting pipe 3 is provided at the end of the connector 6 away from the flow meter body 2. The connecting pipe 3 is connected to the connector 6 through the connecting structure 5. An auxiliary structure 4 is provided at the lower end of the flow meter body 2. A connecting structure 5 is provided on the side of the two connectors 6 that are close to each other.

[0027] In the embodiments of this utility model, please refer to Figures 2 to 5The auxiliary structure 4 includes an auxiliary groove 402, which is located inside the flow meter body 2. A baffle 407 is slidably connected to the inner wall of the auxiliary groove 402. Four frame plates 405 are fixedly connected to the lower surface of the baffle 407. The frame plates 405 are arranged in pairs, and several connecting rods 406 are fixedly connected to the side of each pair of frame plates 405 that are close to each other. Insert rods 404 are slidably connected to the inner wall of the frame plates 405, and the insert rods 404 are slidably connected to the flow meter body 2. Each pair of frame plates 405... 05. Auxiliary rods 410 are fixedly connected to the two opposite sides. A rotating shaft 408 is rotatably connected to the opposite side of the two auxiliary rods 410. A circular arc plate 401 is fixedly connected to the circular arc surface of the rotating shaft 408. A coil spring 409 is sleeved on the circular arc surface at both ends of the rotating shaft 408. The two ends of the coil spring 409 are fixedly connected to the circular arc plate 401 and the auxiliary plate, respectively. A spring 411 is sleeved on the circular arc surface of the insertion rod 404. The two ends of the spring 411 are fixedly connected to the insertion rod 404 and the frame plate 405, respectively. When it is necessary to inspect or clean the inside of the flowmeter body 2, pull the insertion rod 404 to move it. The insertion rod 404 drives the spring 411 to stretch. Then, the insertion rod 404 is separated from the flowmeter body 2. Then, pull the frame plate 405 to move it. The frame plate 405 drives the auxiliary rod 410 to move it. The auxiliary rod 410 drives the arc plate 401 to move it. The arc plate 401 drives the rotating shaft 408 to rotate between the auxiliary plates. The arc plate 401 drives the coil spring 409 to retract. Then, the frame plate 405 drives the baffle 407 to move it. Then, the baffle 407 slides on the inner wall of the auxiliary groove 402. The rebound force of the spring 411 and the coil spring 409 can respectively drive the insertion rod 404 and the arc plate 401 to reset. A connecting rod 403 is fixedly connected to the side of the two insertion rods 404 that are close to each other. The cross section of the connecting rod 403 is circular. The connecting rod 403 can pull both insertion rods 404 simultaneously, avoiding the need to pull each insertion rod 404 individually. A sealing gasket 412, made of rubber, is fixedly connected to the side of the baffle 407 closest to the flowmeter body 2. The sealing gasket 412 increases the friction between the baffle 407 and the flowmeter body 2, preventing leakage when the baffle 407 and flowmeter body 2 are sealed. The arc plate 401 is made of silicone and fits snugly against the flowmeter body 2. The silicone material not only protects the flowmeter body 2 but also facilitates sealing by fitting snugly against the flowmeter body 2. In the embodiments of this utility model, please refer to Figure 6 and Figure 7The connecting structure 5 includes four connecting blocks 55, which are divided into two groups of two. Both groups of connecting blocks 55 are fixedly connected to the connector 6. A screw 51 is fixedly connected to the side of each group of connecting blocks 55 that is close to each other. The arc surfaces at both ends of the screw 51 are provided with opposite threads. The arc surfaces at both ends of the screw 51 are threaded with threaded rings 53. The ends of the two threaded rings 53 that are far apart from each other are rotatably connected to connecting rings 52. The arc surface of the connecting ring 52 is fixedly connected to an installation rod 54. The end of the installation rod 54 that is far away from the connecting ring 52 is fixedly connected to a fixing block 57. The fixing block 57 is slidably connected to the connector 6, and the connecting pipe 3 is slidably connected to the connecting ring 52. The fixing block 57 abuts against the connecting pipe 3. When the connecting pipe 3 needs to be installed, pull the connecting pipe 3 to move it, then insert the connecting pipe 3 into the connector 6, and then rotate the threaded ring 53 to move it. The threaded ring 53 drives the connecting ring 52 to slide on the arc surface of the screw 51. The connecting ring 52 drives the mounting rod 54 to move, and the mounting rod 54 drives the fixing block 57 to move. Then the fixing block 57 connects to the connector 6 to fix the connecting pipe 3. Several anti-slip sleeves 56 are fixedly connected to the inner wall of the fixing block 57. The anti-slip sleeves 56 are rubber sleeves. The anti-slip sleeves 56 can increase the friction between the fixing block 57 and the connector 6 and prevent the connector 6 from sliding when it is connected to the fixing block 57. The arc surface of the threaded ring 53 has a groove 58, and several grooves 58 are evenly distributed on the threaded ring 53. The grooves 58 can increase the friction between the hand and the threaded ring 53 and prevent the threaded ring 53 from sliding when it is rotated. The working principle of the mass flow meter with a microchannel structure provided by this utility model is as follows: When it is necessary to inspect or clean the inside of the flow meter body 2, the insert rod 404 is pulled to move it. The insert rod 404 drives the spring 411 to stretch. Then, the insert rod 404 is separated from the flow meter body 2. Then, the frame plate 405 is pulled to move it. The frame plate 405 drives the auxiliary rod 410 to move. The auxiliary rod 410 drives the arc plate 401 to move. The arc plate 401 drives the rotating shaft 408 to rotate between the auxiliary plates. The arc plate 401 drives the coil spring 409 to retract. Then, the frame plate 405... The baffle 407 is moved and then slides on the inner wall of the auxiliary groove 402. The rebound force of the spring 411 and the coil spring 409 can respectively drive the insertion rod 404 and the arc plate 401 to reset. The connecting rod 403 can pull the two insertion rods 404 at the same time, avoiding pulling the insertion rods 404 one by one to move them. The sealing gasket 412 can increase the friction between the baffle 407 and the flow meter body 2, and prevent leakage when the baffle 407 and the flow meter body 2 are sealed. The silicone material can not only protect the flow meter body 2, but also facilitate the bonding and sealing with the flow meter body 2.

[0028] When it is necessary to install the connecting pipe 3, pull the connecting pipe 3 to move it, then insert the connecting pipe 3 into the connector 6, and then rotate the threaded ring 53 to move it. The threaded ring 53 drives the connecting ring 52 to slide on the arc surface of the screw 51. The connecting ring 52 drives the mounting rod 54 to move, and the mounting rod 54 drives the fixing block 57 to move. Then the fixing block 57 connects with the connector 6 to fix the connecting pipe 3. The anti-slip sleeve 56 can increase the friction between the fixing block 57 and the connector 6 to prevent the connector 6 from sliding when it is connected to the fixing block 57. The groove 58 can increase the friction between the hand and the threaded ring 53 to prevent the threaded ring 53 from sliding when it is rotated.

[0029] The circuits and controls involved in this utility model are all existing technologies, and will not be described in detail here.

[0030] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A mass flow meter with a microchannel structure, characterized in that, include: The flow meter body (2) and the connecting structure (5) are provided. A display meter (1) is fixedly connected to the arc surface of the flow meter body (2). Connectors (6) are fixedly connected to both ends of the flow meter body (2). A connecting pipe (3) is provided at the end of the connecting pipe (6) away from the flow meter body (2). The connecting pipe (3) is connected to the connecting pipe (6) through the connecting structure (5). An auxiliary structure (4) is provided at the lower end of the flow meter body (2). The auxiliary structure (4) includes an auxiliary groove (402). The auxiliary groove (402) is opened inside the flow meter body (2). A baffle (407) is slidably connected to the inner wall of the auxiliary groove (402). Four frame plates (405) are fixedly connected to the lower surface of the baffle (407). The frame plates (405) are divided into two groups of two. Each group of frame plates (405) is connected to the baffle (405). Several connecting rods (406) are fixedly connected to the side of the frame plate (405) that are close to each other. Insert rods (404) are slidably connected to the inner wall of the frame plate (405). Insert rods (404) are slidably connected to the flow meter body (2). An auxiliary rod (410) is fixedly connected to the side of each set of frame plates (405) that are far apart from each other. A rotating shaft (408) is rotatably connected to the side of the two auxiliary rods (410) that are close to each other. An arc plate (401) is fixedly connected to the arc surface of the rotating shaft (408). A coil spring (409) is sleeved on the arc surface of both ends of the rotating shaft (408). The two ends of the coil spring (409) are fixedly connected to the arc plate (401) and the auxiliary plate, respectively. A spring (411) is sleeved on the arc surface of the insert rod (404). The two ends of the spring (411) are fixedly connected to the insert rod (404) and the frame plate (405), respectively.

2. The mass flow meter with a microchannel structure according to claim 1, characterized in that, A connecting rod (403) is fixedly connected to one side of the two inserts (404) that are close to each other. The connecting rod (403) has a circular cross-section.

3. A mass flow meter with a microchannel structure according to claim 1, characterized in that, A sealing gasket (412) is fixedly connected to the side of the baffle (407) near the flow meter body (2), and the sealing gasket (412) is a rubber gasket.

4. A mass flow meter with a microchannel structure according to claim 1, characterized in that, The arc plate (401) is a silicone plate, and the arc plate (401) is attached to the flow meter body (2).

5. A mass flow meter with a microchannel structure according to claim 1, characterized in that, A connecting structure (5) is provided on the side of the two connecting parts (6) that are close to each other. The connecting structure (5) includes four connecting blocks (55). The connecting blocks (55) are divided into two groups of two. Both groups of connecting blocks (55) are fixedly connected to the connecting parts (6). A screw (51) is fixedly connected on the side of each group of connecting blocks (55) that are close to each other. Opposite threads are opened on the arc surfaces at both ends of the screw (51). Threaded rings (53) are threadedly connected to the arc surfaces at both ends of the screw (51). A connecting ring (52) is rotatably connected to the ends of the two threaded rings (53) that are far apart from each other. An installation rod (54) is fixedly connected to the arc surface of the connecting ring (52). A fixing block (57) is fixedly connected to the end of the installation rod (54) that is far away from the connecting ring (52). The fixing block (57) is slidably connected to the connecting parts (6). The connecting tube (3) is slidably connected to the connecting ring (52). The fixing block (57) abuts against the connecting tube (3).

6. A mass flow meter with a microchannel structure according to claim 5, characterized in that, The inner wall of the fixing block (57) is fixedly connected with several anti-slip sleeves (56), which are rubber sleeves.

7. A mass flow meter with a microchannel structure according to claim 5, characterized in that, The threaded ring (53) has a groove (58) on its arc surface, and several grooves (58) are evenly distributed on the threaded ring (53).

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