A protective casing and a mass flow meter

Abstract

This utility model discloses a protective shell and a mass flow meter. The protective shell includes a first half-shell and a second half-shell hinged together, and a fixing mechanism. The first and second half-shells can be opened or closed to remove and place the mass flow meter. A fastening sleeve is threaded to one end of each half-shell, and a pair of mutually closed connecting half-tubes are fixed to the bottom ends of the first and second half-shells. The fixing mechanism includes a first arc plate and a second arc plate. A pair of mutually closed first positioning half-tubes and a second positioning half-tube are respectively fixed to the first and second arc plates. A pair of mutually closed locking rings are rotatably disposed on the first and second positioning half-tubes. A first retaining ring is fixed to the end of each of the first and second positioning half-tubes near the connecting half-tubes, and a second retaining ring is fixed to the end of each pair of connecting half-tubes near the second positioning half-tube. This utility model, through its structural design, facilitates the assembly and disassembly of the protective shell, effectively providing convenience in its use.

Description

Technical Field

[0001] This utility model belongs to the field of protective shell technology, specifically relating to a protective shell and a mass flow meter. Background Technology

[0002] A mass flow meter is an instrument used to measure the mass flow rate of a fluid (liquid or gas). Its core principle is to directly measure the mass flow rate of the fluid, unaffected by factors such as temperature and pressure. Mass flow meters have wide applications in industrial fields, especially in petrochemical, pharmaceutical, food, beverage, and environmental protection industries, providing crucial data support for process control and optimization.

[0003] In order to effectively protect the flow meter, the existing mass flow meter usually needs to be installed with a protective shell. Most of the existing flow meter protective shells are installed with multiple bolts, which makes the installation process complicated and inconvenient to disassemble and replace the device, thus greatly reducing the convenience of using the protective shell.

[0004] Therefore, in order to address the above-mentioned technical problems, it is necessary to provide a protective casing and a mass flow meter.

[0005] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0006] The purpose of this invention is to provide a protective shell and a mass flow meter that can solve the problems of cumbersome installation and inconvenient disassembly of existing protective shells.

[0007] To achieve the above objectives, a specific embodiment of the present invention provides a protective shell, including a first half-shell and a second half-shell that are hinged to each other, and a fixing mechanism.

[0008] The first and second half-shells are hinged together and can be opened or closed to take out and put in the mass flow meter. One end of the first and second half-shells is threaded with a fastening sleeve, and a pair of closed connecting half-tubes are fixed to the bottom of the first and second half-shells.

[0009] The fixing mechanism is connected to a pair of connecting half-tubes. The fixing mechanism includes a first arc plate and a second arc plate. A pair of mutually closed first positioning half-tubes and second positioning half-tubes are respectively fixed on the first arc plate and the second arc plate. A pair of mutually closed locking rings are rotatably arranged on the first positioning half-tubes and the second positioning half-tubes. A first retaining ring is fixed at the end of the first positioning half-tubes and the second positioning half-tubes near the connecting half-tubes. A second retaining ring is fixed at the end of the pair of connecting half-tubes near the second positioning half-tubes. A retaining ring groove is chiseled on the pair of locking rings. The first retaining ring and the second retaining ring are engaged in the pair of retaining ring grooves. Fastening components are installed on the first arc plate and the second arc plate.

[0010] In one or more embodiments of this utility model, heat dissipation holes are drilled on the side walls of both the first half-shell and the second half-shell to dissipate heat.

[0011] In one or more embodiments of this utility model, a connector is fixed at one end of the first half-shell and the second half-shell near the fastening sleeve. The connector is provided with an external thread that is compatible with the fastening sleeve. The fastening sleeve is threaded to one end of the first half-shell and the second half-shell through the connector, thereby fixing the first half-shell and the second half-shell in a closed state. At the same time, the opening of the fastening sleeve corresponds to the position of the display panel of the flow meter.

[0012] In one or more embodiments of this utility model, a pair of connectors are provided with notches at the rotatable connection between the first half-shell and the second half-shell. The notches are used to prevent the first half-shell and the second half-shell from being rotated open because the outer part of the connector is higher than the position of the rotatable connection between the first half-shell and the second half-shell.

[0013] In one or more embodiments of this utility model, annular slide rails are fixed on both the first positioning half-tube and the second positioning half-tube, and annular grooves adapted to the annular slide rails are carved on both of the pair of locking rings. The pair of locking rings rotate on the first positioning half-tube and the second positioning half-tube through the annular slide rails and the annular grooves. When the first positioning half-tube and the second positioning half-tube are closed together, the pair of annular slide rails on them also close into a closed circular slide rail, thereby allowing the pair of locking rings to rotate on the first positioning half-tube and the second positioning half-tube.

[0014] In one or more embodiments of this utility model, a pair of positioning grooves are chiseled on the two side walls of the first positioning half tube that fits into the second positioning half tube, and a pair of positioning blocks that are adapted to the positioning grooves are fixed on the second positioning half tube. When the first positioning half tube and the second positioning half tube are closed together, by inserting a pair of positioning blocks into a pair of positioning grooves, on the one hand, the first positioning half tube and the second positioning half tube are calibrated so that a pair of annular slide rails can be closed into a closed annular slide rail, and on the other hand, the first positioning half tube and the second positioning half tube are pre-fixed.

[0015] In one or more embodiments of the present invention, the fastening assembly includes a tightening band, one end of which is fixed to the first arc plate and the second arc plate respectively, and the other end of the tightening band has a toothed groove on its outer side wall. The tightening band is used to wrap around the installation pipe to fix the first arc plate and the second arc plate.

[0016] In one or more embodiments of this utility model, a fixing frame is fixed on both the first arc plate and the second arc plate. An elastic clip is fixed inside the fixing frame. When the tightening strap is wrapped around the installation pipe, one end of the strap with a grooved tooth is inserted into the fixing frame and the elastic clip is locked onto the groove, thereby tightening the tightening strap onto the installation pipe.

[0017] In one or more embodiments of this utility model, the elastic clip body has a clip tooth that matches the clip tooth groove on the side near the tightening band. The elastic clip body is locked in the clip tooth groove by the clip tooth, thereby locking the tightening band. One end of the elastic clip body is fixed with an unfastening plate. When the unfastening plate is lifted upward, the unfastening plate causes the elastic clip body to elastically deform, so that the clip tooth moves out of the clip tooth groove, and then the tightening band can be released.

[0018] This utility model also discloses a mass flow meter, including the protective housing described above.

[0019] Compared with the prior art, this utility model, through its related structural design, facilitates the disassembly and assembly of the protective shell, effectively providing convenience in the use of the protective shell. Attached Figure Description

[0020] 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 recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a perspective view of a protective shell according to one embodiment of the present utility model;

[0022] Figure 2 This is a cross-sectional view of a protective shell according to one embodiment of the present utility model;

[0023] Figure 3 for Figure 2 The structural diagram shown at point A in the middle;

[0024] Figure 4 This is a schematic diagram of the structure of the first half-shell and the second half-shell in one embodiment of the present invention;

[0025] Figure 5 This is a schematic diagram of the structure of the first arc plate and the second arc plate in one embodiment of the present invention;

[0026] Figure 6 for Figure 5 The structural diagram shown at point B in the middle;

[0027] Figure 7 This is a schematic diagram of the structure of the second positioning half-tube and the locking ring in one embodiment of the present invention;

[0028] Figure 8 for Figure 7 The structural diagram shown at point C is as follows;

[0029] Figure 9 This is a schematic diagram of the opening and closing of the first half-shell and the second half-shell in one embodiment of the present invention.

[0030] Explanation of key figure labels:

[0031] 1-First half-shell, 101-Second half-shell, 102-Connector, 103-Fasting sleeve, 104-Notch, 105-Connecting half-tube, 106-Heat dissipation hole, 2-Fixing mechanism, 201-First arc plate, 202-Second arc plate, 203-First positioning half-tube, 204-Second positioning half-tube, 205-Locking ring, 206-First retaining ring, 207-Second retaining ring, 208-Retaining ring groove, 209-Annular slide rail, 210-Annular slide groove, 211-Positioning groove, 212-Positioning block, 213-Tightening band, 214-Gear groove, 215-Fixing bracket, 216-Elastic retaining body, 217-Gear, 218-Unfastening plate. Detailed Implementation

[0032] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0033] like Figures 1 to 9 As shown, a protective shell in one embodiment of the present invention includes a first half-shell 1 and a second half-shell 101 that are hinged to each other, and a fixing mechanism 2.

[0034] like Figures 1 to 4 As shown, the first half-shell 1 and the second half-shell 101 are hinged to each other and can rotate relative to each other to form a complete shell and create a cavity inside. One end of the first half-shell 1 and the second half-shell 101 is threadedly connected to a fastening sleeve 103, and a pair of mutually closed connecting half-tubes 105 are fixed to the bottom ends of the first half-shell 1 and the second half-shell 101.

[0035] Specifically, the first half-shell 1 and the second half-shell 101, when closed, can accommodate the mass flow meter, thus protecting it. After the first half-shell 1 and the second half-shell 101 are closed, they are threadedly connected to one end by a fastening sleeve 103, thereby securing the first half-shell 1 and the second half-shell 101 in their closed state. The opening of the fastening sleeve 103 corresponds to the position of the flow meter's display panel. When the pair of connecting half-pipes 105 are closed, they form a closed cylindrical tube, protecting the connection between the mass flow meter and the pipeline.

[0036] like Figures 1 to 9 As shown, the fixing mechanism 2 is connected to a pair of connecting half-tubes 105. The fixing mechanism 2 includes a first arc plate 201 and a second arc plate 202. A pair of mutually closed first positioning half-tubes 203 and second positioning half-tubes 204 are respectively fixed on the first arc plate 201 and the second arc plate 202.

[0037] A pair of mutually closing locking rings 205 are rotatably mounted on the first positioning half-tube 203 and the second positioning half-tube 204. A first retaining ring 206 is fixed to the end of the first positioning half-tube 203 and the second positioning half-tube 204 near the connecting half-tube 105. A second retaining ring 207 is fixed to the end of the pair of connecting half-tubes 105 near the second positioning half-tube 204. A retaining ring groove 208 is cut into the pair of locking rings 205. The first retaining ring 206 and the second retaining ring 207 are engaged in the pair of retaining ring grooves 208. Fastening components are installed on the first arc plate 201 and the second arc plate 202.

[0038] During installation and use, the first positioning half-pipe 203 and the second positioning half-pipe 204 are closed and locked onto the connecting pipe between the flow meter and the pipeline, and are located at the bottom end of a pair of connecting half-pipes 105. The outer arc of the first positioning half-pipe 203 and the second positioning half-pipe 204 is the same as the outer arc of the pair of connecting half-pipes 105 after they are closed. The first arc plate 201 and the second arc plate 202 are used to lock onto the pipeline. The first retaining ring 206 and the second retaining ring 207 are engaged with a pair of retaining ring grooves 208, thereby locking the pair of connecting half-pipes 105 together with the first positioning half-pipe 203 and the second positioning half-pipe 204 by a pair of locking rings 205. By rotating the pair of locking rings 205 ninety degrees on the first positioning half-pipe 203 and the second positioning half-pipe 204 respectively, the pair of locking rings 205 originally located on the first positioning half-pipe 203 and the second positioning half-pipe 204 are rotated so that each half is located on the first positioning half-pipe 203 and the second positioning half-pipe 204, thereby locking the pair of connecting half-pipes 105 with the first positioning half-pipe 203 and the second positioning half-pipe 204 by a pair of locking rings 206 and the second positioning half-pipe 207. In addition, the first arc plate 201 and the second arc plate 202 are fixed to the pipe by a fastening assembly.

[0039] like Figures 1 to 9 As shown, heat dissipation holes 106 are drilled on the side walls of both the first half-shell 1 and the second half-shell 101 to dissipate heat. Connectors 102 are fixed to the ends of both the first half-shell 1 and the second half-shell 101 near the fastening sleeve 103. External threads adapted to the fastening sleeve 103 are drilled on the connectors 102. The fastening sleeve 103 is threadedly connected to one end of the first half-shell 1 and the second half-shell 101 through the connectors 102, securing the first half-shell 1 and the second half-shell 101 in their closed state. Simultaneously, the opening of the fastening sleeve 103 corresponds to the display panel position of the flow meter. When the connectors 102 are closed, they form a closed arc.

[0040] like Figures 1 to 4 As shown, a pair of connectors 102 are provided at the rotatable connection between the first half-shell 1 and the second half-shell 101, with notches 104 cut out. The notches 104 are used to prevent the first half-shell 1 and the second half-shell 101 from being rotated open when they are opened. Since the outer part of the connector 102 is higher than the position of the rotatable connection between the first half-shell 1 and the second half-shell 101, the connector 102 will obstruct the first half-shell 1 and the second half-shell 101 from being rotated open.

[0041] like Figure 3 and Figure 7As shown, annular slide rails 209 are fixed on both the first positioning half-tube 203 and the second positioning half-tube 204. Annular grooves 210 adapted to the annular slide rails 209 are carved on both locking rings 205. The pair of locking rings 205 rotate on the first positioning half-tube 203 and the second positioning half-tube 204 through the annular slide rails 209 and the annular grooves 210. When the first positioning half-tube 203 and the second positioning half-tube 204 are closed together, the pair of annular slide rails 209 on them also close into a closed annular slide rail, thereby allowing the pair of locking rings 205 to rotate on the first positioning half-tube 203 and the second positioning half-tube 204.

[0042] like Figures 5 to 7 As shown, a pair of positioning grooves 211 are carved on the two side walls of the first positioning half tube 203 that fits into the second positioning half tube 204. A pair of positioning blocks 212 that are adapted to the positioning grooves 211 are fixed on the second positioning half tube 204. When the first positioning half tube 203 and the second positioning half tube 204 are closed together, the pair of positioning blocks 212 are inserted into the pair of positioning grooves 211. On the one hand, the first positioning half tube 203 and the second positioning half tube 204 are aligned so that the pair of annular slide rails 209 can be closed into a closed annular slide rail. On the other hand, the first positioning half tube 203 and the second positioning half tube 204 are pre-fixed.

[0043] like Figures 5 to 9 As shown, the fastening assembly includes a tightening band 213. One end of the tightening band 213 is fixed to the first arc plate 201 and the second arc plate 202 respectively. The other end of the tightening band 213 has a toothed groove 214 on its outer side wall. The tightening band 213 is used to wrap around the installation pipe to fix the first arc plate 201 and the second arc plate 202.

[0044] like Figures 5 to 9 As shown, a fixing frame 215 is fixed on both the first arc plate 201 and the second arc plate 202. An elastic clip 216 is fixed inside the fixing frame 215. When the tightening strap 213 is wrapped around the installation pipe, one end of the strap with a groove 214 is inserted into the fixing frame 215. The elastic clip 216 is then locked onto the groove 214, thereby tightening the tightening strap 213 onto the installation pipe.

[0045] like Figures 5 to 9 As shown, the elastic clip 216 has a clip 217 that matches the clip groove 214 fixed on one side near the tightening band 213. The elastic clip 216 is locked in the clip groove 214 by the clip 217, thereby locking the tightening band 213. One end of the elastic clip 216 is fixed with a release plate 218. When the release plate 218 is lifted upward, the release plate 218 causes the elastic clip 216 to undergo elastic deformation, so that the clip 217 moves out of the clip groove 214, and then the tightening band 213 can be released.

[0046] An embodiment of this utility model also provides a mass flow meter, which includes the above-described protective housing.

[0047] Working principle: When installing this protective housing, firstly, the first half-shell 1 and the second half-shell 101 are closed and placed outside the flow meter to protect it. At the same time, a pair of connecting half-pipes 105 are also closed to form a closed cylinder, protecting the connection between the flow meter and the pipeline. Then, the fastening sleeve 103 is turned onto a pair of connectors 102 to fix the first half-shell 1 and the second half-shell 101 in the closed state. At the same time, the opening of the fastening sleeve 103 corresponds to the position of the flow meter's display panel.

[0048] Then, the first arc plate 201 and the second arc plate 202 are clamped onto the pipe connected to the flow meter, and the first arc plate 201 and the second arc plate 202 are brought closer together to close the first positioning half-pipe 203 and the second positioning half-pipe 204 together. A pair of locking rings 205 are closed together, and at the same time, the first retaining ring 206 and the second retaining ring 207 are clamped into a pair of retaining ring grooves 208, thereby locking the pair of connecting half-pipes 105 together with the first positioning half-pipe 203 and the second positioning half-pipe 204. Then, the pair of locking rings 205 are rotated ninety degrees on the first positioning half-pipe 203 and the second positioning half-pipe 204, so that the pair of locking rings 205 originally respectively set on the first positioning half-pipe 203 and the second positioning half-pipe 204 are both rotated to each have half set on the first positioning half-pipe 203 and the second positioning half-pipe 204. A pair of locking rings 205 lock a pair of connecting half tubes 105 with the first positioning half tube 203 and the second positioning half tube 204, thereby locking the first half shell 1 and the second half shell 101.

[0049] The tightening strap 213 is then wrapped around the bottom of the pipe, and the end of the tightening strap 213 with the locking tooth groove 214 is inserted into the fixing bracket 215, so that the elastic locking body 216 locks it in place, thereby fixing the first arc plate 201 and the second arc plate 202. When it is necessary to untie the tightening strap 213, the elastic locking body 216 is elastically deformed upward by the unfastening plate 218, so that the locking teeth 217 are moved out of the locking tooth groove 214, and then the tightening strap 213 can be untied.

[0050] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0051] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A protective case characterized by, include: The first and second half-shells are hinged to each other and can be opened or closed to take out and put in the mass flow meter. One end of the first and second half-shells is threaded with a fastening sleeve, and a pair of closed connecting half-tubes are fixed at the bottom of the first and second half-shells. A fixing mechanism is connected to a pair of connecting half-tubes. The fixing mechanism includes a first arc plate and a second arc plate. A pair of mutually closed first positioning half-tubes and second positioning half-tubes are respectively fixed on the first arc plate and the second arc plate. A pair of mutually closed locking rings are rotatably arranged on the first positioning half-tubes and the second positioning half-tubes. A first retaining ring is fixed at the end of the first positioning half-tubes and the second positioning half-tubes near the connecting half-tubes. A second retaining ring is fixed at the end of the pair of connecting half-tubes near the second positioning half-tubes. A retaining ring groove is chiseled on the pair of locking rings. The first retaining ring and the second retaining ring are engaged in the pair of retaining ring grooves. Fastening components are installed on the first arc plate and the second arc plate.

2. A protective case according to claim 1, wherein, Both the first and second half-shells have heat dissipation holes drilled on their side walls.

3. A protective case according to claim 1, wherein, Both the first half-shell and the second half-shell have a connector fixed at one end near the fastening sleeve, and the connectors are provided with external threads that are compatible with the fastening sleeve.

4. A protective case according to claim 3, wherein, A notch is cut at the rotatable connection between the first half-shell and the second half-shell.

5. A protective case according to claim 1, wherein, Both the first and second positioning half-tubes are fixed with annular slide rails, and both of the locking rings are chiseled with annular grooves that are adapted to the annular slide rails.

6. A protective case according to claim 1, wherein, The first positioning half tube has a pair of positioning grooves cut into the two side walls that fit the second positioning half tube, and the second positioning half tube has a pair of positioning blocks that are adapted to the positioning grooves.

7. A protective case according to claim 1, wherein, The fastening assembly includes a tightening band, one end of which is fixed to the first arc plate and the second arc plate respectively, and the other end of the tightening band has a toothed groove on its outer side wall.

8. A protective case according to claim 7, wherein, Both the first and second arc plates are fixed with a fixing frame, and an elastic clip is fixed inside the fixing frame.

9. A protective case according to claim 8, wherein, The elastic clip body has a locking tooth that matches the locking tooth groove on the side near the tightening band, and an unfastening plate is fixed to one end of the elastic clip body.

10. A mass flow meter characterized by, Includes the protective shell as described in any one of claims 1-9.

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