Anti-theft device for flowmeter

Abstract

The utility model provides an anti-theft device for a flowmeter, which belongs to the technical field of flowmeter theft prevention and comprises an I-shaped pipe, protective sleeves are symmetrically arranged on the surface of the I-shaped pipe, a mounting ring is fixedly mounted in the center of the top of the surface of the I-shaped pipe, and mounting grooves are symmetrically formed in the two sides of the mounting ring respectively. A limiting plate is mounted in the mounting groove in a sliding manner; by arranging the fixing spring, the fixing clamping block and the fixing chuck, the flowmeter body is controlled to correspondingly penetrate through the mounting ring, the fixing clamping groove corresponds to the fixing clamping block, the fixing connecting plate is loosened, the limiting plate is jacked into the mounting groove under the springback effect of the fixing spring, and the fixing connecting plate is driven to be tightly attached to the surface of the fixing chuck; the fixing clamping blocks are clamped into the corresponding fixing clamping grooves, so that the pressure sensor is clamped and fixed between the fixing chuck and the mounting ring, the I-shaped pipe and the flow meter body are conveniently mounted, fixed or detached, and the pressure sensor is mounted or detached.

Description

Technical Field

[0001] The utility model relates to the technical field of flow meter anti-theft equipment, in particular to an anti-theft device for a flow meter. Background Art

[0002] Flowmeter is an instrument used to measure the flow of fluid in a pipeline or open channel. Since the flowmeter is installed at the industrial site by simply bundling, it is not strong enough and is vulnerable to malicious damage or theft. This will not only affect the accuracy and service life of the flowmeter, but also cause economic losses to the supply company. It is necessary to install an anti-theft device on the flowmeter to prevent the flowmeter from being stolen and lost.

[0003] The existing anti-theft device for flow meters requires multiple sets of connecting bolts at the connection positions of the flow meter and the I-tube to be tightened when installing or removing the pressure sensor between the flow meter and the I-tube. The disassembly process is relatively cumbersome and it is inconvenient to clamp and fix the pressure sensor between the flow meter and the I-tube. Therefore, improvement is needed. Utility Model Content

[0004] In view of this, the utility model provides an anti-theft device for a flow meter, which solves the problem that the existing flow meter and the I-tube are connected using multiple sets of connecting bolts, the disassembly and assembly process of the flow meter and the I-tube is relatively cumbersome, and it is inconvenient to clamp and fix the pressure sensor between the flow meter and the I-tube.

[0005] In order to solve the above technical problems, the utility model provides an anti-theft device for a flow meter, including an I-shaped tube, a protective sleeve is symmetrically provided on the surface of the I-shaped tube, a mounting ring is fixedly installed at the top central position of the surface of the I-shaped tube, mounting grooves are symmetrically provided inside the two sides of the mounting ring, a limit plate is slidably installed inside the mounting groove, and a fixed pressure rod is fixedly installed on one side of the limit plate, a fixed spring is provided on the surface of the fixed pressure rod located inside the mounting groove, and two groups of fixed pressure rods respectively pass through the mounting groove and extend to the outside of the mounting ring to be fixedly installed with a fixed connecting plate, a fixed block is fixedly installed on the top of the fixed connecting plate located on one side of the mounting ring, a fixing frame is provided on the top of the mounting ring, four groups of pressure sensors are equidistantly provided inside the fixing frame, and a flowmeter body is provided on the top of the fixing frame located on the top of the pressure sensor.

[0006] As a further solution of the utility model: four groups of placement grooves are arranged at equal angles on the top of the fixing frame, and pressure sensors are arranged inside the placement grooves, and four groups of positioning blocks are fixedly installed at equal angles on the outer wall of the fixing frame.

[0007] As a further solution of the utility model: an annular groove is provided on the top of the mounting ring, and four groups of positioning grooves are provided on the outer wall of the annular groove at equal angles, and the positioning grooves correspond to the positioning blocks.

[0008] As a further solution of the utility model: fixing studs are symmetrically fixedly installed on both sides of the surface of the mounting ring, and the fixing studs pass through the surface of the fixing connecting plate and are provided with fixing nuts.

[0009] As a further solution of the utility model: a fixed chuck is fixedly installed on the surface of the bottom of the flow meter body, and a plurality of groups of fixed card slots are provided at equal angles on the outer wall of the fixed chuck, and the fixed card slots correspond to the fixed card blocks.

[0010] As a further solution of the utility model: a connecting side plate is fixedly installed at the central position of the top of the protective sleeve, a pressing plate is fixedly installed on the top of the connecting side plate, and the pressing plate is clamped on the top of the fixed chuck.

[0011] As a further solution of the utility model: connecting plates are symmetrically fixedly installed on both sides of the protective sleeve, and fixing bolts are connected between the connecting plates opposite to each other of the two groups of protective sleeves.

[0012] In summary, compared with the prior art, the present application includes at least one of the following beneficial technical effects:

[0013] 1. The anti-theft device for the flow meter is provided with a fixing spring, a fixing block and a fixing chuck, two sets of fixing nuts are loosened, and the fixing connecting plates are pulled to both sides. After the fixing frame and the pressure sensor are clamped on the top of the mounting ring, the flow meter body is controlled to pass through the mounting ring accordingly, so that the fixing slot corresponds to the fixing block, and the fixing connecting plate is loosened. Under the rebound action of the fixing spring, the limit plate is pushed toward the inside of the mounting slot, and the fixing connecting plate is driven to be pressed against the surface of the fixing chuck, so that the fixing block is clamped into the corresponding fixing slot, so that the pressure sensor is clamped and fixed between the fixing chuck and the mounting ring, which is convenient for installing, fixing or splitting the I-shaped tube and the flow meter body, and installing or removing the pressure sensor.

[0014] 2. The anti-theft device for the flow meter is provided with a mounting ring, a positioning slot, a fixing frame, a positioning block and a pressure sensor. The fixing frame is correspondingly clamped in the annular groove at the top of the mounting ring, and the positioning block on the surface of the fixing frame is clamped into the corresponding positioning slot. Then the pressure sensor is clamped into the placement slot, and the flow meter body is controlled to pass through the mounting ring so that the fixing chuck is clamped and fixed on the top of the pressure sensor, ensuring that the pressure sensor will not rotate in the annular groove when it is clamped and fixed on the mounting ring and the fixing chuck, causing the pressure sensor to change its position at the bottom of the fixing chuck. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the explosion structure of an anti-theft device for a flow meter according to the utility model;

[0016] Figure 2 This is a schematic diagram of the combined structure of two sets of protective sleeves of the utility model;

[0017] Figure 3 It is a structural schematic diagram of the fixing frame of the utility model;

[0018] Figure 4 It is a schematic cross-sectional structure diagram of the mounting ring and the fixing connecting plate of the utility model.

[0019] Description of reference numerals:

[0020] 1. I-shaped pipe; 2. Protective sleeve; 201. Connecting side plate; 202. Pressure plate; 203. Connecting plate; 204. Fixing bolt; 3. Mounting ring; 301. Annular groove; 302. Positioning slot; 303. Mounting slot; 304. Limiting plate; 305. Fixed pressure rod; 306. Fixed spring; 307. Fixed connecting plate; 308. Fixed block; 309. Fixed stud; 310. Fixed nut; 4. Fixed frame; 401. Placement slot; 402. Positioning block; 5. Pressure sensor; 6. Flow meter body; 601. Fixed chuck; 602. Fixed slot. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical scheme and advantages of the embodiment of the utility model clearer, the following will be combined with the appended drawings of the embodiment of the utility model. Figure 1-4 , the technical scheme of the embodiment of the utility model is clearly and completely described. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the described embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the utility model.

[0022] like Figure 1-4 As shown: This embodiment provides an anti-theft device for a flow meter, including an I-shaped tube 1, a mounting ring 3 is fixedly installed at the top center position of the surface of the I-shaped tube 1, and mounting grooves 303 are symmetrically arranged inside the two sides of the mounting ring 3, and a limit plate 304 is slidably installed inside the mounting groove 303, and a fixed pressure rod 305 is fixedly installed on one side of the limit plate 304, and a fixed spring 306 is arranged on the surface of the fixed pressure rod 305 located inside the mounting groove 303, and two groups of fixed pressure rods 305 respectively pass through the mounting groove 303 and extend to the outside of the mounting ring 3 to be fixedly installed with a fixed connecting plate 307, and the fixed connecting plate A fixed block 308 is fixedly installed on the top of one side of the mounting ring 3 at 307; the utility model can pull the fixed connecting plate 307 to both sides by providing a fixed spring 306, so that the distance between the two groups of fixed blocks 308 is expanded, so that the fixing frame 4 and the flow meter body 6 can be installed correspondingly on the top of the mounting ring 3. After the fixed slot 602 corresponds to the fixed block 308, the fixed connecting plate 307 is loosened. Under the rebound action of the fixed spring 306, the fixed connecting plate 307 drives the fixed block 308 to press against the fixed slot 602, and the fixed chuck 601 is clamped and fixed on the top of the mounting ring 3.

[0023] like Figure 2 As shown, the protective sleeve 2 is symmetrically provided on the surface of the I-shaped tube 1, and a connecting side plate 201 is fixedly installed at the central position of the top of the protective sleeve 2, and a pressing plate 202 is fixedly installed on the top of the connecting side plate 201, and the pressing plate 202 is clamped on the top of the fixed chuck 601. Connecting plates 203 are symmetrically fixedly installed on both sides of the protective sleeve 2, and fixing bolts 204 are connected between the connecting plates 203 opposite to the two groups of protective sleeves 2. By providing the protective sleeve 2 and the pressing plate 202, the two groups of protective sleeves 2 are fixed on the surface of the I-shaped tube 1 using the fixing bolts 204 to protect the I-shaped tube 1, and at the same time, the pressing plate 202 can be pressed on the top of the fixed chuck 601, and the fixed chuck 601 is pressed and fixed on the top of the four groups of pressure sensors 5. After the fixed chuck 601 is removed from the top of the pressure sensor 5, the pressure sensor 5 transmits the pressure signal to the control terminal for alarm.

[0024] like Figure 3-4 As shown, the top of the mounting ring 3 is provided with an annular groove 301, and the outer wall of the annular groove 301 is provided with four groups of positioning grooves 302 at equal angles, and the positioning grooves 302 correspond to the positioning blocks 402. The top of the mounting ring 3 is provided with a fixing frame 4, and the top of the fixing frame 4 is provided with four groups of placement grooves 401 at equal angles, and the placement grooves 401 are provided with pressure sensors 5, and the outer wall of the fixing frame 4 is provided with four groups of positioning blocks 402 at equal angles. By providing the positioning blocks 402, the fixing frame 4 is placed in the annular groove 301, and the positioning blocks 402 are inserted into the corresponding positioning grooves 302, ensuring that the fixing frame 4 is stuck in the annular groove 301 and does not rotate at will.

[0025] like Figure 4 As shown, fixing studs 309 are symmetrically fixedly installed on both sides of the surface of the mounting ring 3, and the fixing studs 309 pass through the surface of the fixed connecting plate 307 and are provided with fixing nuts 310. By providing the fixing nuts 310, after the fixed connecting plate 307 is tightly attached to the surface of the fixed chuck 601 and the flow meter body 6 is clamped and fixed on the top of the mounting ring 3, the fixing nuts 310 are tightened to press the fixed connecting plate 307 against the surface of the mounting ring 3, ensuring that the fixed connecting plate 307 will not move away from the mounting ring 3 at will, driving the fixed block 308 to disengage from the corresponding fixed slot 602, causing the flow meter body 6 to disengage from the surface of the I-shaped pipe 1.

[0026] like Figure 1As shown, a flow meter body 6 is provided on the top of the fixing frame 4 located on the top of the pressure sensor 5, and a fixed chuck 601 is fixedly installed on the surface of the bottom of the flow meter body 6. A plurality of fixed card grooves 602 are provided at equal angles on the outer wall of the fixed chuck 601, and the fixed card grooves 602 correspond to the fixed card blocks 308. By providing the fixed card grooves 602, the position of the flow meter body 6 on the top of the mounting ring 3 is adjusted so that the fixed card block 308 can be inserted into the corresponding fixed card grooves 602, thereby adjusting the position of the flow meter body 6 installed on the top of the I-shaped pipe 1.

[0027] Working principle:

[0028] Loosen the two sets of fixing nuts 310 and pull the fixing connecting plate 307 to both sides, so that the fixing spring 306 is compressed and deformed inside the mounting groove 303, and the fixing frame 4 is correspondingly inserted into the annular groove 301, and the positioning block 402 is inserted into the corresponding positioning groove 302. Then, the pressure sensor 5 is placed in the corresponding placement groove 401, and the flow meter body 6 is controlled to pass through the fixing frame 4 and the mounting ring 3 and insert into the I-shaped pipe 1, so that the fixing chuck 601 is pressed on the top of the pressure sensor 5, and the orientation of the flow meter body 6 is adjusted so that the fixing groove 602 corresponds to the fixed block 308. Loosen the fixed connecting plate 307 so that the fixed block 308 can be inserted into the corresponding fixed slot 602. Tighten the fixing nut 310 to make the fixed connecting plate 307 close to the surface of the mounting ring 3 and the fixed chuck 601. Then wrap the two groups of protective sleeves 2 on the surface of the I-shaped tube 1 accordingly, so that the pressure plate 202 is pressed on the top of the fixed chuck 601. Tighten the fixing bolts 204 to wrap and fix the two groups of protective sleeves 2 on the surface of the I-shaped tube 1. At the same time, the pressure plate 202 can press and fix the fixed chuck 601.

[0029] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0030] The above is a preferred embodiment of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. An anti-theft device for a flow meter, characterized in that: The invention comprises an I-shaped tube (1), wherein a protective sleeve (2) is symmetrically arranged on the surface of the I-shaped tube (1), a mounting ring (3) is fixedly installed at the top center position of the surface of the I-shaped tube (1), mounting grooves (303) are symmetrically arranged inside the two sides of the mounting ring (3), a limiting plate (304) is slidably installed inside the mounting groove (303), and a fixed pressure rod (305) is fixedly installed on one side of the limiting plate (304), and a fixed spring is arranged on the surface of the fixed pressure rod (305) located inside the mounting groove (303). (306), and two groups of fixed pressure rods (305) respectively pass through the installation groove (303) and extend to the outside of the installation ring (3) to be fixedly installed with a fixed connecting plate (307), and the fixed connecting plate (307) is located at the top of one side of the installation ring (3) and is fixedly installed with a fixed clamping block (308), and a fixed frame (4) is provided at the top of the installation ring (3), and four groups of pressure sensors (5) are equidistantly provided inside the fixed frame (4), and a flow meter body (6) is provided at the top of the fixed frame (4) and located at the top of the pressure sensor (5).

2. The anti-theft device for a flow meter according to claim 1, characterized in that: The top of the fixing frame (4) is provided with four groups of placement grooves (401) at equal angles, and pressure sensors (5) are provided inside the placement grooves (401). Four groups of positioning blocks (402) are fixedly installed at equal angles on the outer wall of the fixing frame (4).

3. The anti-theft device for a flow meter as claimed in claim 2, characterized in that: The top of the mounting ring (3) is provided with an annular groove (301), and the outer wall of the annular groove (301) is provided with four groups of positioning grooves (302) at equal angles, and the positioning grooves (302) correspond to the positioning blocks (402).

4. The anti-theft device for a flow meter as claimed in claim 3, characterized in that: Fixing studs (309) are symmetrically fixedly installed on both sides of the surface of the mounting ring (3), and fixing nuts (310) are provided on the surface of the fixing studs (309) passing through the fixing connecting plate (307).

5. The anti-theft device for a flow meter according to claim 1, characterized in that: A fixed chuck (601) is fixedly mounted on the surface of the bottom of the flow meter body (6), and a plurality of groups of fixed slots (602) are provided at equal angles on the outer wall of the fixed chuck (601), and the fixed slots (602) correspond to the fixed blocks (308).

6. The anti-theft device for a flow meter as claimed in claim 5, characterized in that: A connecting side plate (201) is fixedly installed at the central position of the top of the protective sleeve (2), a pressing plate (202) is fixedly installed on the top of the connecting side plate (201), and the pressing plate (202) is clamped on the top of the fixed chuck (601).

7. The anti-theft device for a flow meter as claimed in claim 6, characterized in that: Connecting plates (203) are symmetrically fixedly installed on both sides of the protective sleeve (2), and fixing bolts (204) are connected between the connecting plates (203) opposite to each other in the two groups of protective sleeves (2).

Images