A flow meter protection box

Abstract

This utility model discloses a flowmeter protective box, relating to the field of flowmeter technology, aiming to solve the technical problem of current flowmeters installed outdoors without effective protection. It includes an installation mechanism and a protective mechanism installed on the installation mechanism. The installation mechanism includes a base plate and symmetrically arranged positioning seats on the base plate. The protective mechanism includes a protective box body, which is located on the top surface of the base plate. Symmetrically arranged protective positioning rods are provided on the sides of the protective box body. Each protective positioning rod includes several protective parts along its long axis, and connecting parts are provided between these protective parts, connecting their ends. A fixing part is provided at the end of each protective positioning rod. This utility model effectively blocks outdoor wind and rain, preventing water ingress malfunctions in the flowmeter. Through the dual limiting of the positioning seats and protective positioning rods, combined with an anti-tamper locking structure, it prevents interference from unauthorized individuals, combining the advantages of protection, stability, safety, and convenience.

Description

Technical Field

[0001] This utility model relates to the field of flow meter technology, and more specifically, to a flow meter protective box. Background Technology

[0002] Gas flow meters are core metering devices used to accurately measure the flow rate of gaseous media such as natural gas and liquefied petroleum gas. They are widely used in industrial production, urban gas supply, and commercial gas consumption, and are key tools for gas trade settlement, energy consumption monitoring, and safety management. Their working principles vary, with mainstream types including vortex flow meters (which measure flow rate using fluid vortex frequency and are suitable for medium to high flow velocities), turbine flow meters (which calculate flow rate by turbine speed and offer high accuracy), ultrasonic flow meters (which offer non-contact measurement and strong corrosion resistance), and diaphragm gas meters (suitable for low-flow-rate residential applications, with a simple and reliable structure).

[0003] Under traditional conditions, flow meters are often installed outdoors. Gas flow meters, such as turbine flow meters and ultrasonic flow meters, are mostly "mountain"-shaped structures. The two flanges on the casing connect to the pipe flanges, and the upper part of the main body houses the volume correction instrument head, displaying output data such as temperature, pressure, and flow rate. These types of products are often installed outdoors without effective protection, and are easily susceptible to water ingress or other malfunctions due to long-term exposure to wind and rain. Furthermore, they are also vulnerable to interference from malicious individuals, affecting accurate measurement. Therefore, we propose a flow meter protective enclosure. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology, adapt to the needs of reality, and provide a flow meter protection box to solve the technical problem that flow meters installed outdoors are not effectively protected.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a flow meter protective box, including an installation mechanism and a protective mechanism provided on the installation mechanism. The installation mechanism includes a base plate and positioning seats symmetrically arranged on the base plate. The top of the positioning seats is concave and arc-shaped. The protective mechanism includes a protective box body, which is disposed on the top surface of the base plate. Protective positioning rods are symmetrically arranged on the side ends of the protective box body. The protective positioning rods include a plurality of protective parts along their long axis. Connecting parts are provided between the protective parts, and the connecting parts connect the protective parts end to end. A fixing part is provided at the end of the protective positioning rod.

[0006] Preferably, the arc-shaped recess of the positioning seat forms a first positioning part and a second positioning part, and the first positioning part and the second positioning part of the two positioning seats are diagonally distributed.

[0007] Preferably, the protective enclosure has transparent windows on both the front and side, and an arc-shaped opening is provided at the lower part of the side of the protective enclosure, with the protective positioning rod located outside the arc-shaped opening.

[0008] Preferably, the protective part is curved in an arc shape along its long axis, the arc of the protective part is the same as the arc of the recess at the top of the positioning seat, and the protective part is located above the positioning seat.

[0009] Preferably, the first positioning part has a notch on its side end, and the top end of the first positioning part has a limiting hole extending to the notch. The fixing part is inserted into the limiting hole, and a nut is threaded onto the end of the fixing part.

[0010] Preferably, the connecting part at the tail of the protective positioning rod is provided with a snap-fit ​​part, the end of the snap-fit ​​part is bent upward into a hook shape, the second positioning part is provided with an installation cavity, the top surface of the second positioning part is provided with an insertion hole communicating with the installation cavity, a buckle plate is rotatably installed in the installation cavity, the inner wall of the installation cavity is provided with a spring connected to the buckle plate, and the end of the buckle plate is bent downward into a hook shape.

[0011] Preferably, the second positioning part has a lock hole on its front side, and the mounting mechanism also includes a key that is adapted to the lock hole.

[0012] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model, through the design of a protective enclosure structure, abandons the bulky structure of traditional large protective enclosures. A small protective enclosure forms a core protective barrier, effectively blocking the intrusion of outdoor wind, rain, dust, and other natural factors, preventing water ingress into the flowmeter, component corrosion, or damage to the display panel. This fundamentally solves the problem of traditional outdoor flowmeters easily malfunctioning due to environmental factors. Simultaneously, the arc-shaped opening on the side of the protective enclosure, in conjunction with the protective positioning rod, forms a wraparound protection for the flowmeter flange. The concave arc at the top of the positioning seat matches the outer circumference arc of the flowmeter flange, and the protective part of the positioning rod also adopts the same arc design. This ensures a tight fit to the flowmeter structure, preventing the protective components from squeezing or wearing the flowmeter, and also forms a double limit of "positioning seat + protective positioning rod," preventing the flowmeter from shifting due to pipeline vibration or external interference, ensuring stable metering accuracy, reducing damage to the flowmeter from external impacts, extending the equipment's service life, and solving the problem of current outdoor flowmeters lacking effective protection.

[0013] 2. This utility model also incorporates a positioning seat and a protective positioning rod structure. The arc-shaped recess of the positioning seat divides it into a first positioning part and a second positioning part. The notch on the side of the first positioning part mates with the limiting hole at the top, allowing for quick insertion into the fixing part of the protective positioning rod. A "rigid lock" is achieved by tightening the nut, ensuring a stable connection and easy disassembly. The second positioning part has a built-in mounting cavity, a snap-fit ​​plate, and a spring. Combined with the unlocking hole on the front and a special key, it can achieve "anti-tamper locking" through the hook-shaped engagement between the snap-fit ​​plate and the locking part of the protective positioning rod, preventing unauthorized personnel from tampering with the flow meter data. It can also be easily unlocked with the key, meeting the daily maintenance needs of staff and balancing safety and convenience. Furthermore, the protective part of the protective positioning rod, which is also arc-shaped along its long axis, forms a "wrap-around protection" from the top of the flow meter flange, blocking debris impacts and reducing the risk of leakage at the pipe interface. Attached Figure Description

[0014] Figure 1 This is a front view structural diagram of the present utility model; Figure 2 This is a schematic diagram of the disassembled structure of this utility model; Figure 3 This is a cross-sectional structural diagram of the present invention; Figure 4 This is a schematic diagram of the protective positioning rod structure of this utility model; Figure 5 This is a partial cross-sectional view of the present invention.

[0015] The following are the labels in the diagram: 100, Installation mechanism; 101, Base plate; 102, Positioning seat; 1021, First positioning part; 1022, Second positioning part; 103, Limiting hole; 104, Notch; 105, Insertion hole; 106, Unlocking hole; 107, Key; 108, Installation cavity; 109, Buckle plate; 110, Spring; 200, Protective mechanism; 201, Protective housing; 202, Transparent window; 203, Protective positioning rod; 2031, Protective part; 2032, Connecting part; 2033, Fixing part; 2034, Snap-fit ​​part. Detailed Implementation

[0016] like Figures 1 to 5As shown, the present invention relates to a flowmeter protective box, including an installation mechanism 100 and a protective mechanism 200 provided on the installation mechanism 100. The installation mechanism 100 includes a base plate 101 and positioning seats 102 symmetrically arranged on the base plate 101. The top of the positioning seat 102 is concave arc-shaped. The protective mechanism 200 includes a protective box body 201, which is provided on the top surface of the base plate 101. Protective positioning rods 203 are symmetrically arranged on the side ends of the protective box body 201. The protective positioning rods 203 include a plurality of protective parts 2031 along the long axis direction. Connecting parts 2032 are provided between the protective parts 2031, and the connecting parts 2032 connect the protective parts 2031 end to end. A fixing part 2033 is provided at the end of the protective positioning rod 203. This utility model can effectively block outdoor wind and rain, avoid water ingress malfunction of the flow meter, and through the double limiting of the positioning seat 102 and the protective positioning rod 203, combined with the anti-disassembly locking structure, it can prevent interference from criminals, and take into account protection, stability, safety and convenience.

[0017] Specifically, the arc-shaped recess of the positioning seat 102 forms a first positioning part 1021 and a second positioning part 1022, which are diagonally distributed. The first positioning part 1021 and the second positioning part 1022 of the two positioning seats 102 correspond to the two flange ends of the flowmeter, respectively, to achieve dual positioning of the two ends of the flowmeter. The diagonal distribution of the first positioning part 1021 and the second positioning part 1022 of the two positioning seats 102, together with the protective positioning rod 203, forms a cross-limiting structure, preventing the protective housing 201 from being forcibly removed from one end by disassembling the nut, and further improving the stability of the flowmeter after installation.

[0018] Furthermore, the protective enclosure 201 has transparent windows 202 on both the front and side. An arc-shaped opening is also provided at the lower part of the side of the protective enclosure 201, with the protective positioning rod 203 located outside the arc-shaped opening. The transparent windows 202 are made of tempered glass, which is impact-resistant and aging-resistant. Operators can observe the flowmeter's display data without opening the protective enclosure 201. The arc-shaped opening at the lower part of the side of the protective enclosure 201 is adapted to the short outer circumference arc of the flowmeter flange, providing a limiting effect on the flowmeter. The protective positioning rod 203, located outside the arc-shaped opening, further limits the flowmeter's movement, ensuring the stability of the protective enclosure installation.

[0019] Furthermore, the protective part 2031 is curved along its long axis, and the curvature of the protective part 2031 is the same as the curvature of the recessed top of the positioning seat 102. The protective part 2031 is located above the positioning seat 102. This curved structure better conforms to the short outer surface of the flowmeter flange, preventing the protective part 2031 from causing compression damage to the flowmeter. The fact that the curvature of the protective part 2031 is the same as the curvature of the recessed top of the positioning seat 102 ensures the consistency of the positioning dimensions between the protective positioning rod 203 and the positioning seat 102, ensuring uniform force distribution after the flowmeter is installed.

[0020] It is worth noting that the first positioning part 1021 has a notch 104 on its side end, and a limiting hole 103 extending to the notch 104 is opened at the top of the first positioning part 1021. The fixing part 2033 is inserted into the limiting hole 103, and a nut is threaded onto the end of the fixing part 2033. When installing the protective box, the flow meter is placed inside the protective box 201, and the mounting mechanism 100 is connected to the protective box. The fixing part 2033 is inserted into the limiting hole 103. By tightening the nut, the protective positioning rod 203 can be firmly fixed on the first positioning part 1021, realizing a rigid connection between the protective mechanism 200 and the mounting mechanism 100.

[0021] It is worth mentioning that a snap-fit ​​part 2034 is provided on the connecting part 2032 at the tail of the protective positioning rod 203. The end of the snap-fit ​​part 2034 is bent upward into a hook shape. An installation cavity 108 is provided inside the second positioning part 1022. An insertion hole 105 communicating with the installation cavity 108 is provided on the top surface of the second positioning part 1022. A buckle plate 109 is rotatably installed inside the installation cavity 108. A spring 110 connected to the buckle plate 109 is provided on the inner wall of the installation cavity 108. The end of the buckle plate 109 is bent downward into a hook shape. The hook-shaped structure of the snap-fit ​​part 2034 can be engaged with the snap-fit ​​plate 109. The mounting cavity 108 provides mounting space for the snap-fit ​​plate 109 and the spring 110. The size of the insertion hole 105 is adapted to the snap-fit ​​part 2034, which facilitates the insertion of the snap-fit ​​part 2034. The snap-fit ​​plate 109 is rotatably installed in the mounting cavity 108. The snap-fit ​​plate 109 can rotate around the rotation axis to achieve engagement or disengagement with the snap-fit ​​part 2034. The inner wall of the mounting cavity 108 is provided with a spring 110 connected to the snap-fit ​​plate 109. The spring 110 can push the snap-fit ​​plate 109 in its natural state to keep the snap-fit ​​plate 109 engaged with the snap-fit ​​part 2034.

[0022] It is worth noting that the second positioning part 1022 has a locking hole 106 on its front side, and the mounting mechanism 100 also includes a key 107 that is compatible with the locking hole 106. Operators can operate the latch plate 109 through the locking hole 106. After inserting the key 107 into the locking hole 106, turning the key 107 will push the latch plate 109 to compress the spring 110, causing the latch plate 109 to separate from the latching part 2034. This facilitates the disassembly and maintenance of the protective mechanism 200, preventing unauthorized personnel from disassembling the protective box and preventing unauthorized interference with accurate measurement.

[0023] Working Principle: This embodiment provides a flow meter protection box. In use, the operator must first place the flow meter to be protected (such as a turbine flow meter, ultrasonic flow meter, or other "mountain"-shaped gas flow meter) on top of the base plate 101 of the installation mechanism 100 or inside the protection box 201, so that the flanges at both ends of the flow meter correspond to the two symmetrically arranged positioning seats 102 on the base plate 101. Since the top of the positioning seat 102 is concave and arc-shaped, and this arc matches the outer circumference of the flow meter flange, the flow meter flange end will naturally engage with the arc-shaped concave part of the positioning seat 102. At this time, the first positioning part 1021 and the second positioning part 1022 of the two positioning seats 102, formed by the arc-shaped concave parts, will initially limit the flow meter flange from both sides. Next, the operator places the protection box 201 of the protection mechanism 200 over the top surface of the base plate 101, so that the flow meter is completely inside the protection box 201. The arc-shaped opening at the lower side of the protection box 201 will fit against the outer circumference of the flow meter flange end. The protective housing 201 is symmetrically positioned on the side of the protective housing 201, with the protective positioning rods 203 located outside the arc-shaped opening. The protective portion 2031, curved along its long axis, is positioned directly above the positioning seat 102, its curvature matching the concave curvature of the top of the positioning seat 102. This design avoids squeezing the flow meter while providing protection and limitation from above. During the installation of the protective housing 201, the end of the protective positioning rod 203 is... The fixing part 2033 is inserted into the limiting hole 103 opened at the top of the first positioning part 1021. The limiting hole 103 extends to the notch 104 at the side end of the first positioning part 1021 to facilitate the insertion of the fixing part 2033. After insertion, a nut is threadedly installed and tightened at the end of the fixing part 2033. Through the threaded engagement between the nut and the fixing part 2033, the protective positioning rod 203 is firmly fixed on the first positioning part 1021, realizing a rigid connection between the protective mechanism 200 and the installation mechanism 100 on one side.Simultaneously, the snap-fit ​​part 2034 on the tail connecting part 2032 of the protective positioning rod 203 is aligned with the insertion hole 105 on the top surface of the second positioning part 1022 and inserted. The end of the snap-fit ​​part 2034 is bent upward into a hook shape. During the insertion process, it will push the buckle plate 109 rotatably installed in the mounting cavity 108 inside the second positioning part 1022, causing the buckle plate 109 to rotate around the rotation axis and compress the spring 110 connected to the inner wall of the mounting cavity 108. When the snap-fit ​​part 2034 is fully inserted, the spring 110 returns to its original position under the action of elastic force. Pushing the buckle plate 109 to rotate in the opposite direction causes the hook-shaped part at the end of the buckle plate 109 to engage with the hook-shaped structure of the snap-fit ​​part 2034, achieving a flexible and stable connection between the protective mechanism 200 and the installation mechanism 100 on the other side. This completes the installation of the entire protective box. The installed protective box 201 effectively blocks outdoor wind and rain, preventing water ingress or other malfunctions at the flow meter display. At the same time, the protective positioning rod 203 and the positioning seat 102 lock the position of the protective box 201, preventing unauthorized personnel from touching or interfering with the flow meter and ensuring measurement accuracy. During daily use, staff can observe the flow meter display data through the transparent windows 202 on the front and side of the protective box 201 without opening the protective box, reducing damage to the protective state. When maintenance or repair of the flow meter is required, staff need to use the key 107 that matches the unlocking hole 106 on the front of the second positioning part 1022. After inserting the key 107 into the unlocking hole 106 and turning it, the key 107 will push the installation cavity. The snap plate 109 inside 108 compresses the spring 110 again and separates from the snap-fit ​​part 2034. Then, unscrew the nut at the end of the fixing part 2033 on the first positioning part 1021, pull the fixing part 2033 out of the limiting hole 103, and at the same time pull the snap-fit ​​part 2034 out of the insertion hole 105. The protective box 201 can then be removed from the base plate 101 for maintenance of the internal flow meter. After maintenance, reassemble the protective box according to the above installation steps to restore the protective state.

[0024] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. A flowmeter enclosure characterized by, The device includes an installation mechanism (100) and a protective mechanism (200) provided on the installation mechanism (100). The installation mechanism (100) includes a base plate (101) and positioning seats (102) symmetrically arranged on the base plate (101). The top of the positioning seat (102) is concave and arc-shaped. The protective mechanism (200) includes a protective housing (201). The protective housing (201) is provided on the top surface of the base plate (101). The protective housing (201) is symmetrically provided with protective positioning rods (203) on its side ends. The protective positioning rods (203) include a plurality of protective parts (2031) along the long axis direction. The protective parts (2031) are provided with connecting parts (2032) and the connecting parts (2032) connect the protective parts (2031) end to end. The end of the protective positioning rod (203) is provided with a fixing part (2033).

2. A flow meter enclosure according to claim 1, wherein, The arc-shaped recess of the positioning seat (102) forms a first positioning part (1021) and a second positioning part (1022) of the positioning seat (102), and the first positioning part (1021) and the second positioning part (1022) of the two positioning seats (102) are diagonally distributed.

3. A flow meter enclosure according to claim 2, wherein, The protective enclosure (201) has transparent windows (202) on its front and side. The lower part of the side of the protective enclosure (201) also has an arc-shaped opening, and the protective positioning rod (203) is located outside the arc-shaped opening.

4. A flow meter enclosure according to claim 3, wherein, The protective part (2031) is curved in an arc shape along the long axis direction. The arc of the protective part (2031) is the same as the arc of the recess at the top of the positioning seat (102), and the protective part (2031) is located above the positioning seat (102).

5. A flow meter enclosure according to claim 4, wherein, The first positioning part (1021) has a notch (104) on its side end, and a limiting hole (103) extending to the notch (104) is opened at the top of the first positioning part (1021). The fixing part (2033) is inserted into the limiting hole (103), and a nut is threaded onto the end of the fixing part (2033).

6. A flow meter enclosure according to claim 5, wherein, The protective positioning rod (203) has a snap-fit ​​part (2034) on the connecting part (2032) at the tail. The end of the snap-fit ​​part (2034) is bent upward into a hook shape. The second positioning part (1022) has an installation cavity (108). The top surface of the second positioning part (1022) has an insertion hole (105) that communicates with the installation cavity (108). A buckle plate (109) is rotatably installed in the installation cavity (108). The inner wall of the installation cavity (108) is provided with a spring (110) that is connected to the buckle plate (109). The end of the buckle plate (109) is bent downward into a hook shape.

7. A flow meter enclosure according to claim 6, wherein, The second positioning part (1022) has a lock hole (106) on its front side, and the mounting mechanism (100) also includes a key (107) that is adapted to the lock hole (106).

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