Pressure flowmeter

Abstract

The utility model discloses a pressure flow meter which comprises a pressure flow meter body, connecting pipes and connecting units are arranged on the left side and the right side of the pressure flow meter body respectively, each connecting unit comprises a fixing ring, and the fixing rings are fixedly connected to the left side and the right side of the pressure flow meter body. Mounting rings are fixedly connected to the left side and the right side of the pressure flow meter body and located on the outer side of the fixing ring, a plurality of moving rods are arranged on the outer sides of the mounting rings, clamping plates are fixedly connected to one ends of the moving rods, rectangular grooves are formed in the other ends of the moving rods, and control plates are rotatably connected to the inner sides of the rectangular grooves; the outer side of the right end of the control panel is rotationally connected with a rotating block. By arranging the fixing ring, the mounting ring, the moving rod, the clamping plates, the control plate, the moving ring, the fixing block and the screw rod, the multiple clamping plates can be conveniently controlled to mount the connecting pipe by rotating the screw rod, the flowmeter and the external connecting pipe can be conveniently mounted and dismounted, and operation is easy.

Description

Technical Field

[0001] The utility model relates to the field of pressure flowmeters, in particular to a pressure flowmeter. Background Art

[0002] A pressure flow meter is an instrument that determines flow rate by measuring the pressure difference generated when a fluid flows through a narrow passage. Its working principle is based on the Bernoulli equation and the continuity equation. When a fluid passes through a narrow section, the velocity increases and the pressure decreases. By measuring this pressure difference, the velocity and flow rate of the fluid can be calculated.

[0003] When the pressure flow meter is in use, it needs to be connected to the external connecting pipe using a flange. The flange connection method requires the use of multiple bolts for installation. When the pressure flow meter needs to be repaired, the workload of disassembling the flow meter is large and the operation is troublesome. Utility Model Content

[0004] In order to overcome the disadvantage of the inconvenience in installation and disassembly of the flow meter and the external connecting pipe in the prior art, one of the purposes of the utility model is to provide a pressure flow meter.

[0005] One of the purposes of the utility model is achieved by the following technical solution: A pressure flow meter comprises a pressure flow meter body: both left and right sides of the pressure flow meter body are provided with a connecting pipe and a connecting unit;

[0006] The connecting unit includes a fixing ring, which is fixedly connected to the left and right sides of the pressure flowmeter body, and the left and right sides of the pressure flowmeter body and located on the outside of the fixing ring are fixedly connected with mounting rings, and a plurality of moving rods are arranged on the outside of the mounting ring, and a clamping plate is fixedly connected to one end of each of the moving rods, and a rectangular groove is provided at the other end of the moving rod, and a control plate is rotatably connected to the inner side of the rectangular groove, and a rotating block is rotatably connected to the outer side of the right end of the control plate, and a moving ring is fixedly connected to the right side of the rotating block, and two fixed blocks are fixedly connected to the outer sides of the left and right ends of the pressure flowmeter body, and a screw is rotatably connected between the two fixed blocks.

[0007] According to the pressure flow meter, the outer side of the mounting ring is fixedly connected with a fixing cylinder, the inner side of the fixing cylinder is fixedly connected with an air bag, the outer side of the air bag is fixedly connected with an inflation tube, and the outer side of the inflation tube is provided with a valve, so as to facilitate the reinforcement of the connection tube installation.

[0008] According to the pressure flow meter, the moving rod is slidably connected to the mounting ring.

[0009] According to the pressure flowmeter, the screw is threadedly connected to the moving ring, which facilitates controlling the horizontal movement of the moving ring.

[0010] According to the pressure flow meter, the outer end of the screw is fixedly connected with a turning handle, which is convenient for controlling the rotation of the screw.

[0011] According to the pressure flow meter, the clamping plate is arranged in an arc-shaped structure, so as to be convenient for fitting to the outer side of the connecting pipe.

[0012] Beneficial effects:

[0013] 1. By providing a fixing ring, a mounting ring, a moving rod, a clamping plate, a control plate, a moving ring, a fixing block and a screw, it is convenient to control a plurality of clamping plates to install the connecting pipe by turning the screw, so that the flow meter and the external connecting pipe can be installed and disassembled, and the operation is simple.

[0014] 2. The fixing tube, the air bag, the inflation tube and the valve are provided to facilitate the air bag to squeeze the connecting tube, thereby increasing the stability of the connecting tube installation.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention is further described below with reference to the accompanying drawings and embodiments;

[0017] Figure 1 This is an overall three-dimensional structural diagram of a pressure flow meter of the utility model;

[0018] Figure 2 This is a sectional three-dimensional structural diagram of a pressure flow meter of the utility model;

[0019] Figure 3 for Figure 2 The enlarged view of point A in the middle;

[0020] Figure 4 The utility model is a partial three-dimensional structural diagram of a pressure flow meter.

[0021] Legend:

[0022] 1. Pressure flow meter body; 2. Connecting pipe; 3. Connecting unit; 301. Fixing ring; 302. Mounting ring; 303. Moving rod; 304. Clamp; 305. Rectangular groove; 306. Control board; 307. Turning block; 308. Moving ring; 309. Fixing cylinder; 310. Air bag; 311. Inflating tube; 312. Valve; 313. Fixing block; 314. Screw; 315. Turning handle. DETAILED DESCRIPTION

[0023] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0024] Reference Figure 1-4 A pressure flow meter includes a pressure flow meter body 1: connecting pipes 2 and connecting units 3 are provided on the left and right sides of the pressure flow meter body 1, wherein the connecting unit 3 facilitates and quickly installs the connecting pipes 2 on the left and right sides and the pressure flow meter body 1 together.

[0025] The connecting unit 3 includes a fixing ring 301, which is fixedly connected to the left and right sides of the pressure flow meter body 1. The left and right sides of the pressure flow meter body 1 and the outer side of the fixing ring 301 are fixedly connected with a mounting ring 302. A plurality of moving rods 303 are arranged on the outer side of the mounting ring 302. One end of each of the moving rods 303 is fixedly connected with a clamping plate 304. A rectangular groove 305 is provided on the other end of the moving rod 303. A control board 306 is rotatably connected to the inner side of the rectangular groove 305. A rotating block 307 is rotatably connected to the outer side of the right end of the control board 306. A moving ring 308 is fixedly connected to the right side of the rotating block 307. Two fixing blocks 313 are fixedly connected to the outer sides of the left and right ends of the pressure flow meter body 1. A screw 314 is rotatably connected between the two fixing blocks 313. The moving rod 303 and the mounting ring 302 are fixedly connected. The mounting ring 302 is slidably connected, the screw rod 314 is threadedly connected to the movable ring 308, the outer end of the screw rod 314 is fixedly connected with a turning handle 315, and the clamping plate 304 is arranged in an arc structure. When installing the connecting pipe 2, the connecting pipe 2 is first sleeved on the outer side of the fixed ring 301, and then the turning handle 315 is rotated. The turning handle 315 drives the screw rod 314 to rotate, and the screw rod 314 drives the movable ring 308 to move horizontally. The movable ring 308 drives the control plate 306 to rotate. The multiple control plates 306 are all arranged in an inclined structure. The control plate 306 drives the movable rod 303 to move, and the movable rod 303 drives the clamping plate 304 to move, so that the multiple clamping plates 304 clamp and limit the connecting pipe 2. When disassembling the connecting pipe 2, the screw rod 314 is rotated in the opposite direction to facilitate the control of the clamping plate 304 and the connecting pipe 2. Quick separation is simple, and the operation is simple.

[0026] The outer side of the mounting ring 302 is fixedly connected with a fixing cylinder 309, the inner side of the fixing cylinder 309 is fixedly connected with an airbag 310, the outer side of the airbag 310 is fixedly connected with an inflation tube 311, and the outer side of the inflation tube 311 is provided with a valve 312. When in use, the inflation tube 311 is connected to the air pump, and the valve 312 is opened, and gas is rushed into the airbag 310 through the inflation tube 311 to expand the airbag 310. The airbag 310 squeezes the connecting tube 2 to increase the stability of the installation of the connecting tube 2. When disassembling, the valve 312 is opened to facilitate the discharge of gas and separate the airbag 310 from the connecting tube 2.

[0027] Working principle: When in use, the staff first sets the connecting pipe 2 on the outside of the fixed ring 301, and then turns the handle 315, and the handle 315 drives the screw 314 to rotate. Under the action of the moving ring 308, the control board 306 and the moving rod 303, it is convenient for multiple splints 304 to connect the pipe 2 at the same time, so that multiple splints 304 can quickly install the connecting pipe 2. When disassembling, the screw 314 is rotated in the opposite direction to quickly disassemble the connecting pipe 2. At the same time, the inflation tube 311 is connected to the air pump, which is convenient for the air bag 310 to squeeze the connecting pipe 2 and increase the stability of the installation of the connecting pipe 2. When disassembling, just open the valve 312, which is simple to operate.

[0028] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A pressure flow meter, characterized in that: It comprises a pressure flow meter body (1); a connecting pipe (2) and a connecting unit (3) are arranged on both the left and right sides of the pressure flow meter body (1); The connection unit (3) comprises a fixing ring (301), the fixing ring (301) being fixedly connected to the left and right sides of the pressure flow meter body (1), the left and right sides of the pressure flow meter body (1) and located outside the fixing ring (301) are fixedly connected to mounting rings (302), the outside of the mounting ring (302) is provided with a plurality of moving rods (303), one end of each of the plurality of moving rods (303) is fixedly connected to a clamping plate (304), and the moving rods (30 3) is provided with a rectangular groove (305), the inner side of the rectangular groove (305) is rotatably connected to a control plate (306), the outer side of the right end of the control plate (306) is rotatably connected to a rotating block (307), the right side of the rotating block (307) is fixedly connected to a moving ring (308), the outer sides of the left and right ends of the pressure flow meter body (1) are fixedly connected to two fixed blocks (313), and a screw (314) is rotatably connected between the two fixed blocks (313).

2. A pressure flow meter according to claim 1, characterized in that: The outer side of the mounting ring (302) is fixedly connected to a fixing cylinder (309), the inner side of the fixing cylinder (309) is fixedly connected to an air bag (310), the outer side of the air bag (310) is fixedly connected to an inflation tube (311), and the outer side of the inflation tube (311) is provided with a valve (312).

3. A pressure flow meter according to claim 1, characterized in that: The moving rod (303) is slidably connected to the mounting ring (302).

4. A pressure flow meter according to claim 1, characterized in that: The screw rod (314) is threadedly connected to the moving ring (308).

5. A pressure flow meter according to claim 1, characterized in that: The outer end of the screw rod (314) is fixedly connected to a turning handle (315).

6. A pressure flow meter according to claim 1, characterized in that: The clamping plate (304) is arranged in an arc-shaped structure.

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