A high seal quality flowmeter housing

Abstract

The utility model discloses a high sealing quality flowmeter shell, including measuring straight pipe, the lower end communication of measuring straight pipe has the measurement U pipe, and the outside of measurement U pipe is connected with the first casing and the second casing of through bolt interconnection, the utility model discloses through setting the locating block and the opening positioning groove between measurement U pipe and the first casing and the second casing, through the accurate positioning of the clamping between locating block and positioning groove realizes the installation process, ensures the accurate installation between the first casing and the second casing and measurement U pipe, through the inside filling of annular seal ring, U type seal ring and extrusion capsule with sealant, and through the extrusion of extrusion pipe head in the process of fastening the first casing and the second casing with bolt, makes extrusion pipe head can extrude extrusion capsule through extrusion plate, and the sealant in extrusion capsule is extruded to the inside of annular seal ring and u type seal ring actively, thereby the sealing between the first casing and the second casing and with measurement U pipe.

Description

Technical Field

[0001] This utility model relates to the field of mass flow meters, and in particular to a high-sealing mass flow meter housing. Background Technology

[0002] Given the common problem that the housing of mass flow meters is prone to sealing failure under complex working conditions, leading to decreased measurement accuracy and safety hazards, especially the traditional housing structure which is difficult to maintain stable sealing performance in long-term vibration, temperature fluctuation and corrosive environments, and lacks effective installation positioning mechanism and active sealing enhancement methods.

[0003] To address the aforementioned issues, this patent proposes an actively enhanced sealing type mass flow meter housing to solve the technical problems mentioned above. Utility Model Content

[0004] The main purpose of this invention is to propose a high-sealing mass flow meter housing, which aims to solve the problem that traditional mass flow meter housings lack active sealing enhancement methods and are prone to sealing failure.

[0005] To address the aforementioned problems, this utility model proposes a high-sealing mass flow meter housing, comprising a measuring straight tube, the lower end of which is connected to a measuring U-tube, and a first housing and a second housing connected to each other by bolts. A positioning component is provided between the measuring U-tube and the first and second housings to position and limit the measuring U-tube and the first and second housings. An elastic sealing component is provided between the measuring U-tube and the first and second housings, as well as between the first and second housings, to seal the space between the first and second housings.

[0006] Preferably, the positioning component includes positioning blocks, and positioning blocks are connected to the outside of the two "U"-shaped top ends of the measuring U-tube. Positioning grooves are opened inside the two "U"-shaped top ends of the first housing and the second housing, and are engaged with the outside of the positioning blocks through the positioning grooves.

[0007] Preferably, the elastic sealing assembly includes annular sealing rings, and each of the four positioning grooves is provided with annular sealing rings, and the inner and outer sides of the two annular sealing rings located inside the first housing are connected by U-shaped sealing rings.

[0008] Preferably, sealing grooves are provided on both the inner and outer sides of the opposite end of the first and second housings, and two U-shaped sealing rings are respectively engaged in the two inner sealing grooves and the two outer sealing grooves.

[0009] Preferably, multiple first connecting seats are connected to the "U"-shaped outer walls at both the inner and outer ends of the first housing. An extrusion plate is slidably connected inside the first connecting seat, and an extrusion tube head extending to the outside of the first connecting seat is connected to the end of the extrusion plate away from the first housing.

[0010] Preferably, the U-shaped sealing ring is externally connected to multiple extrusion capsules located inside the first connecting seat, and multiple extrusion plates are tightly fitted to the multiple extrusion capsules respectively. The annular sealing ring, the U-shaped sealing ring and the extrusion capsules are internally interconnected and are provided with sealant.

[0011] Preferably, multiple second connecting seats that fit into the first connecting seat are connected to the "U"-shaped outer walls at both the inner and outer ends of the second housing, and the first connecting seat and the second connecting seat are connected by bolts, and the extrusion tube head is extruded by the bolts. Beneficial effects

[0012] 1. This utility model achieves precise positioning during installation by setting a positioning block and opening a positioning groove between the measuring U-tube and the first and second housings, and by the snap-fit ​​between the positioning block and the positioning groove, thus ensuring the precise installation between the first and second housings and the measuring U-tube.

[0013] 2. This utility model sets an annular sealing ring inside the positioning groove for sealing, and seals the inner and outer sides between the first and second housings by the snap-fit ​​between the U-shaped sealing ring and the sealing groove, thereby isolating the measuring U-tube, avoiding interference from the external environment with the test results, preventing fluid leakage, and ensuring safe use.

[0014] 3. This utility model fills the annular sealing ring, U-shaped sealing ring and the inside of the extrusion capsule with sealant, and extrudes the extrusion tube head by tightening the first shell and the second shell with bolts. This allows the extrusion tube head to extrude the extrusion capsule through the extrusion plate, actively extruding the sealant inside the extrusion capsule into the annular sealing ring and the U-shaped sealing ring, thereby improving the sealing between the first shell and the second shell and between the first shell and the measuring U-tube.

[0015] 4. When the annular or U-shaped sealing ring is damaged, this utility model can reseal it by allowing sealant to flow out from the damaged area, thus avoiding sealing failure caused by aging of the annular or U-shaped sealing ring. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a three-dimensional structural diagram of the mass flow meter housing of this utility model; Figure 2 This is an exploded view of the mass flow meter housing of this utility model; Figure 3 This is a three-dimensional cross-sectional view of the mass flow meter housing of this utility model; Figure 4 This is a schematic diagram of the first shell connection structure of this utility model; Figure 5 For the present utility model Figure 3 Enlarged view of point A in the middle; Figure 6 This is a schematic diagram of the extrusion capsule connection structure of this utility model.

[0018] The annotations in the attached figures are explained as follows: 1. Measuring straight tube; 2. Measuring U-tube; 3. First housing; 4. Second housing; 5. Positioning block; 6. Positioning groove; 7. Annular sealing ring; 8. Sealing groove; 9. U-shaped sealing ring; 10. First connecting seat; 11. Extrusion plate; 12. Extrusion tube head; 13. Extrusion capsule; 14. Second connecting seat. Detailed Implementation

[0019] 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.

[0020] To achieve the above-mentioned utility model objectives, such as Figures 1-6As shown, this utility model provides a high-sealing mass flow meter housing, including a measuring straight tube 1, with a measuring U-tube 2 connected to the lower end of the measuring straight tube 1. A first housing 3 and a second housing 4, connected to each other by bolts, are sleeved around the measuring U-tube 2. A positioning component is provided between the measuring U-tube 2 and the first housing 3 and the second housing 4, and the positioning component positions and limits the measuring U-tube 2 and the first housing 3 and the second housing 4. An elastic sealing component is provided between the measuring U-tube 2 and the first housing 3 and the second housing 4, and between the first housing 3 and the second housing 4, and the elastic sealing component seals the space between the first housing 3 and the second housing 4. To achieve a seal, during the installation of the first housing 3 and the second housing 4, bolts are used to install the first housing 3 and the second housing 4 on the outside of the measuring U-tube 2. The installation positions of the first housing 3 and the second housing 4 are then positioned using a positioning assembly, allowing the first housing 3 and the second housing 4 to isolate the measuring U-tube 2 and prevent interference from the external environment on the test results. Both the first housing 3 and the second housing 4 are made of materials with good corrosion resistance and fatigue resistance. At the same time, an elastic sealing assembly can be used to seal the first housing 3 and the second housing 4 to prevent fluid leakage and ensure safe use.

[0021] Preferably, the positioning component includes positioning blocks 5. Positioning blocks 5 are connected to the outside of the two "U"-shaped ends of the measuring U-tube 2. Positioning grooves 6 are opened inside the two "U"-shaped ends of the first housing 3 and the second housing 4. The first housing 3 and the second housing 4 are engaged with the outside of the positioning blocks 5 through the positioning grooves 6. During the installation of the first housing 3 and the second housing 4, the first housing 3 and the second housing 4 are engaged with the outside of the positioning blocks 5 through the positioning grooves 6. The engagement between the positioning blocks 5 and the positioning grooves 6 positions the first housing 3 and the second housing 4, so that the first housing 3 and the second housing 4 can be accurately engaged with the outside of the measuring U-tube 2 and can be accurately aligned.

[0022] Preferably, the elastic sealing assembly includes annular sealing rings 7, and each of the four positioning grooves 6 is provided with annular sealing rings 7. U-shaped sealing rings 9 are connected to the inner and outer sides of the two annular sealing rings 7 located inside the first housing 3. Sealing grooves 8 are provided on the inner and outer sides of the opposite ends of the first housing 3 and the second housing 4. Two U-shaped sealing rings 9 are respectively engaged in the two inner and two outer sealing grooves 8. Multiple first connecting seats 10 are connected to the "U"-shaped outer walls at both ends of the first housing 3. An extrusion plate 11 is slidably connected inside the first connecting seat 10, and an extrusion tube head 12 extending to the outside of the first connecting seat 10 is connected to the end of the extrusion plate 11 away from the first housing 3. During the installation of the first housing 3 and the second housing 4, the four annular sealing rings 7 located inside the four positioning grooves 6 wrap around the two positioning blocks 5 in a ring shape, sealing the positioning blocks 5 with the first housing 3 and the second housing 4. Simultaneously, the inner and outer sides of the first housing 3 and the second housing 4 can be sealed through the engagement between the U-shaped sealing rings 9 and the sealing grooves 8.

[0023] Preferably, the U-shaped sealing ring 9 is externally connected to multiple extrusion capsules 13 located inside the first connecting seat 10, and multiple extrusion plates 11 are tightly fitted with multiple extrusion capsules 13 respectively. The annular sealing ring 7, the U-shaped sealing ring 9 and the extrusion capsules 13 are internally interconnected and are provided with sealant. Multiple second connecting seats 14 that fit with the first connecting seat 10 are connected to the "U"-shaped outer walls at both the inner and outer ends of the second housing 4. The first connecting seat 10 and the second connecting seat 14 are connected by bolts, and the extrusion tube head 12 is extruded by the bolts. During the process of fixing the first housing 3 and the second housing 4 by the bolts, the multiple first connecting seats 10 connected to the outside of the first housing 3 fit with the multiple second connecting seats 14 connected to the outside of the second housing 4, and the bolts penetrate the inside of the first connecting seat 10 and are threadedly connected to the second connecting seat 14.

[0024] At this time, the bolt can tightly connect the first housing 3 and the second housing 4 together through the threaded connection with the second connecting seat 14. At the same time, the bolt will compress the extrusion tube head 12 extending to the outside of the first connecting seat 10 and completely compress the extrusion tube head 12 into the first connecting seat 10. The extrusion tube head 12 drives the extrusion plate 11 to slide inside the first connecting seat 10 and compress the extrusion capsule 13. This compresses the sealant inside the extrusion capsule 13 into the annular sealing ring 7 and the U-shaped sealing ring 9, thereby enhancing the sealing strength between the positioning block 5 and the first housing 3 and the second housing 4, and enhancing the sealing strength between the first housing 3 and the second housing 4.

[0025] Furthermore, when the annular sealing ring 7 and the U-shaped sealing ring 9 are damaged, the sealant inside the annular sealing ring 7 and the U-shaped sealing ring 9 can flow out through the damaged area and re-seal the space between the first housing 3 and the second housing 4, as well as the spacer block 5 and the first housing 3 and the second housing 4.

[0026] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A high-sealing mass flow meter housing, comprising a measuring straight tube (1), wherein the lower end of the measuring straight tube (1) is connected to a measuring U-tube (2), and a first housing (3) and a second housing (4) connected to each other by bolts are sleeved on the outside of the measuring U-tube (2), characterized in that: A positioning component is provided between the measuring U-tube (2) and the first housing (3) and the second housing (4), and the measuring U-tube (2) and the first housing (3) and the second housing (4) are positioned and limited by the positioning component; An elastic sealing assembly is provided between the measuring U-tube (2) and the first housing (3) and the second housing (4), as well as between the first housing (3) and the second housing (4), and the elastic sealing assembly seals the space between the first housing (3) and the second housing (4).

2. The high-sealing mass flow meter housing as described in claim 1, characterized in that, The positioning component includes a positioning block (5). The two "U"-shaped top ends of the measuring U-tube (2) are connected to the positioning block (5). The two "U"-shaped top ends of the first housing (3) and the second housing (4) are provided with positioning grooves (6) and are snapped onto the outside of the positioning block (5) through the positioning grooves (6).

3. The high-sealing mass flow meter housing as described in claim 2, characterized in that, The elastic sealing assembly includes an annular sealing ring (7), and each of the four positioning grooves (6) is provided with an annular sealing ring (7). The inner and outer sides of the two annular sealing rings (7) located inside the first housing (3) are connected by U-shaped sealing rings (9).

4. The high-sealing mass flow meter housing as described in claim 3, characterized in that, The first housing (3) and the second housing (4) are provided with sealing grooves (8) on the inner and outer sides of opposite ends, and two U-shaped sealing rings (9) are respectively engaged in the two inner sealing grooves (8) and the two outer sealing grooves (8).

5. The high-sealing mass flow meter housing as described in claim 4, characterized in that, Multiple first connecting seats (10) are connected to the "U"-shaped outer walls at both ends of the first housing (3). An extrusion plate (11) is slidably connected inside the first connecting seat (10), and an extrusion tube head (12) extending to the outside of the first connecting seat (10) is connected to the end of the extrusion plate (11) away from the first housing (3).

6. The high-sealing mass flow meter housing as described in claim 5, characterized in that, The U-shaped sealing ring (9) is connected to a plurality of extrusion capsules (13) located inside the first connecting seat (10) on the outside, and a plurality of extrusion plates (11) are tightly fitted to a plurality of extrusion capsules (13). The annular sealing ring (7), the U-shaped sealing ring (9) and the extrusion capsules (13) are interconnected and are provided with sealant.

7. The high-sealing mass flow meter housing as described in claim 6, characterized in that, The second housing (4) has multiple second connecting seats (14) that fit with the first connecting seat (10) on the "U"-shaped outer walls at both the inner and outer ends. The first connecting seat (10) and the second connecting seat (14) are connected by bolts, and the extrusion tube head (12) is extruded by the bolts.

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