Small-caliber vortex shedding flowmeter

Abstract

The utility model relates to the technical field of flow meters, in particular to a small-caliber vortex shedding flow meter. The small-caliber vortex shedding flowmeter comprises a flowmeter body, and the two sides of a pipeline in the flowmeter body are sleeved with rotating cylinders in threaded connection. Arc-shaped supporting pieces which are symmetrically distributed are arranged outside a flange at the end of a pipeline in the flow meter body, a plurality of inserting rods are arranged on the arc-shaped supporting pieces, and the inserting rods are inserted into the flange at the end of the pipeline in the flow meter body. According to the small-caliber vortex shedding flowmeter provided by the utility model, the device is connected with a pipeline by adopting a mounting mode of clamping, extruding and limiting, and compared with a mounting mode of fastening by screwing a bolt and a nut for multiple times, the linkage of a flange on one side can be completed through one-time rotation, so that the whole operation process is more convenient and quicker.

Description

TECHNICAL FIELD

[0001] The utility model relates to flowmeter technical field especially relates to a small caliber vortex flowmeter. BACKGROUND

[0002] Vortex flowmeter is according to the Karman vortex principle research and production's measure gas, steam or liquid's volume flow, standard volume flow or mass flow's volume flowmeter. Mainly used in industrial pipeline medium fluid's flow measurement, such as gas, liquid, steam and so on various medium. The caliber generally is DN15-DN50's vortex flowmeter and is called small caliber vortex flowmeter.

[0003] The existing vortex flowmeter, when installing, generally all are through multiple bolts are inserted into the flange of butt joint, then again on the bolt one by one is screwed the nut and is connected fixed, this kind of one by one screwing connection mode, then needs the staff to carry out repeated operation, reduces the operation efficiency of staff, and the independent specification relatively smaller nut is also very easy to appear the phenomenon of falling loss when using, thereby can cause the influence to the installation of device.

[0004] Therefore, it is necessary to provide a new small caliber vortex flowmeter to solve the above technical problems. SUMMARY

[0005] To solve the above technical problems, the utility model provides a small caliber vortex flowmeter.

[0006] The small caliber vortex flowmeter provided by the utility model comprises a flowmeter body, threaded rotating cylinders are arranged on both sides of a pipeline in the flowmeter body,

[0007] Arc-shaped supporting pieces are arranged on the flanges of the end portions of the pipeline in the flowmeter body, a plurality of insertion rods are arranged on the arc-shaped supporting pieces, and the insertion rods are inserted into the flanges of the end portions of the pipeline in the flowmeter body,

[0008] Arc-shaped linkage strips are arranged on the end portions of the rotating cylinders in a symmetrical and movable manner, arc-shaped supporting strips are arranged on the outer walls of the arc-shaped linkage strips in a movable manner, clamping blocks are arranged on the outer portions of the arc-shaped supporting strips and the opposite portions of the insertion rods, clamping grooves are arranged on the opposite portions of the outer walls of the insertion rods and the clamping blocks, and the inner walls of the clamping grooves and the outer walls of the clamping blocks are in abutment.

[0009] Preferably, a plurality of guide rods are arranged on the side of the flanges of the end portions of the pipeline in the flowmeter body close to the rotating cylinders in a uniform manner, and the inner walls of the guide rods and the inner walls of the arc-shaped linkage strips are in abutment and sliding connection.

[0010] Preferably, the opposite ends of the two rotating cylinders are provided with fixedly connected linkage rings, the outer wall of the linkage ring is provided with a groove, and the inner wall of the groove is in abutment and sliding connection with the outer wall of the arc-shaped linkage strip.

[0011] Preferably, the side of the arc-shaped support strip close to the arc-shaped linkage strip is provided with a guide strip, the inside of the arc-shaped linkage strip is provided with a guide hole at the position opposite to the guide strip, and the inner wall of the guide hole is in abutment and sliding connection with the outer wall of the guide strip.

[0012] Preferably, the outer wall of the guide strip is provided with a spring, one end of the spring is fixedly connected with the corresponding arc-shaped support strip, and the other end of the spring is fixedly connected with the corresponding arc-shaped linkage strip.

[0013] Preferably, the length of the rotating cylinder is greater than the length of the guide strip.

[0014] Compared with the related art, the small-bore vortex flowmeter has the following beneficial effects:

[0015] 1. The device is connected with the pipeline by the clamping and extruding limiting mounting mode, and compared with the mounting mode of fastening by repeatedly screwing bolts and nuts, the linkage of one side flange can be completed by one rotation, so that the whole operation process is more convenient and fast.

[0016] 2. The connection structure is more integral, and compared with the traditional bolt and nut structure, the probability of nut loss can be reduced in the subsequent installation and use process, so that the influence of nut falling and loss on the whole installation in the dismounting and installation operation process can be reduced. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a structural schematic view of a preferred embodiment of the small-bore vortex flowmeter provided by the utility model;

[0018] Figure 2 is Figure 1 a structural schematic view of the rotating cylinder, the arc-shaped support piece, the arc-shaped support strip and the arc-shaped linkage strip and the like components shown in the figure;

[0019] Figure 3 is Figure 2 a partial cross-sectional structural schematic view of the rotating cylinder and the components thereof shown in the figure;

[0020] Figure 4 is Figure 2 a structural schematic view of the arc-shaped support piece shown in the figure;

[0021] Figure 5 is Figure 2 a structural schematic view of the arc-shaped support strip and the components thereof shown in the figure;

[0022] Figure 6 For Figure 1 The structural schematic diagram of the flowmeter body and components thereof is shown.

[0023] Reference signs in the drawing: 1, flowmeter body; 11, guide rod; 2, rotating cylinder; 21, linkage ring; 22, groove; 3, arc-shaped support piece; 31, insertion rod; 32, clamping groove; 4, arc-shaped support strip; 41, clamping block; 42, guide strip; 43, spring; 5, arc-shaped linkage strip; 51, guide hole. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical scheme and advantages of the utility model more clearly, the following will be further described in detail in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model and not to limit the utility model.

[0025] The specific implementation of the utility model will be described in detail in combination with specific examples.

[0026] Please refer to Figures 1 to 6 The utility model discloses a small-bore vortex flowmeter, which comprises a flowmeter body 1, and threaded connection rotating cylinders 2 are arranged on both sides of a pipeline in the flowmeter body 1.

[0027] In the embodiment of the utility model, please refer to Figures 1 to 6 The utility model discloses a small-bore vortex flowmeter, which comprises a flowmeter body 1, and threaded connection rotating cylinders 2 are arranged on both sides of a pipeline in the flowmeter body 1.

[0028] It should be noted that: the installation mode of clamping extrusion limiting is used to connect the device and the pipeline, when in use, the staff inserts the insertion rod 31 into the flange and clamps the clamping block 41 into the clamping groove 32, then the rotating cylinder 2 can be controlled to rotate to drive the clamping block 41 to move, so that the clamping block 41 drives the insertion rod 31 to move through the abutment with the clamping groove 32, when the arc-shaped support piece 3 at the end of the insertion rod 31 abuts against the flange at the end of the pipeline, the driving force of the rotating cylinder 2 when rotating can drive the flowmeter body 1 to move towards the side close to the connecting pipeline, so that the flange on the flowmeter body 1 can abut against the flange at the end of the connecting pipeline tightly, and the installation of the flowmeter body 1 can be realized quickly.

[0029] Compared with the installation mode of tightening the bolt nut for multiple times, the whole operation process is very convenient and fast, and the connection structure of the device is more integral, compared with the traditional bolt nut structure, the probability of nut loss can be reduced in the subsequent installation and use process, thereby the influence of the nut falling and loss in the dismounting and installation operation process on the whole installation can be reduced.

[0030] In the embodiment of the utility model, please refer to Figures 1 to 6 , the pipeline end flange of flowmeter body 1 is equipped with several evenly distributed guide rods 11 on the side close to rotating cylinder 2, the inner wall of guide rod 11 is in abutment and sliding connection with the inner wall of arc linkage strip 5, the opposite ends of two rotating cylinders 2 are both equipped with fixedly connected linkage rings 21, the outer wall of linkage ring 21 is provided with groove 22, and the inner wall of groove 22 is in abutment and sliding connection with the outer wall of arc linkage strip 5.

[0031] It should be noted that: by opening groove 22 on the outer wall of linkage ring 21, the outer wall of arc linkage strip 5 can be clamped into the inside of linkage ring 21, so that when rotating cylinder 2 drives linkage ring 21 to move spirally, linkage ring 21 can drive arc linkage strip 5 and the components on the top thereof to move synchronously through the abutment of groove 22 and the outer wall of arc linkage strip 5;

[0032] And through the setting of guide rod 11, guide rod 11 can guide arc linkage strip 5 during the movement of arc linkage strip 5, so that arc linkage strip 5 moves stably horizontally, thus arc linkage strip 5 can stably support the components on the top.

[0033] In the embodiment of the utility model, please refer to Figures 1 to 6 , arc-shaped support strip 4 is provided with guide strip 42 on the side close to arc linkage strip 5, arc linkage strip 5 is provided with guide hole 51 on the opposite part inside guide strip 42, the inner wall of guide hole 51 is in abutment and sliding connection with the outer wall of guide strip 42, the outer wall of guide strip 42 is provided with spring 43, one end of spring 43 is fixedly connected with corresponding arc-shaped support strip 4, and the other end of spring 43 is fixedly connected with corresponding arc linkage strip 5.

[0034] It should be noted that: through the setting of guide strip 42 and spring 43, during the use process, the staff presses arc-shaped support strip 4, which drives guide strip 42 to slide in the inside of the guide cylinder, so that the vertical direction of arc-shaped support strip 4 can be guided, arc-shaped support strip 4 can drive the stable vertical movement of top clamping block 41, and through the setting of spring 43, when the staff releases the pressing of arc-shaped support strip 4, spring 43 can extrude arc-shaped support strip 4 through the action force of itself, so that arc-shaped support strip 4 drives clamping block 41 to be clamped into the inside of clamping groove 32, thereby the sliding of the plug strip in the flange can be avoided.

[0035] In the embodiment of the utility model, please refer to Figures 1 to 6 The length of the rotating cylinder 2 is greater than the length of the guide strip 42.

[0036] It should be noted that: by setting the relatively long rotating cylinder 2, the end of the rotating cylinder 2 can be located outside the end of the guide strip 42, so that the staff can conveniently hold and operate the rotating cylinder 2 later.

[0037] The working principle of the small-bore vortex flowmeter provided by the utility model is as follows:

[0038] When using the device, the staff can first move the flange in the device to the opposite part of the flange at the end of the connecting pipeline, then take out the arc-shaped supporting piece 3, insert the insertion rod 31 in the arc-shaped supporting piece 3 into the flange, press the arc-shaped supporting strip 4 in the process, make the clamping block 41 on the arc-shaped supporting strip 4 move downward, so that the insertion rod 31 can be moved downward to the direction of the arc-shaped supporting strip 4, until the clamping groove 32 on the insertion strip moves to the opposite part of the clamping block 41, the pressing of the arc-shaped supporting strip 4 can be released, at this time the spring 43 can lift and reset the arc-shaped supporting strip 4 through the elastic force of itself, so that the clamping block 41 can be clamped into the clamping groove 32, by repeating the above operation, all the insertion rods 31 can be inserted into the flange.

[0039] Then the rotating cylinder 2 can be controlled to rotate, at this time the rotating rotating cylinder 2 can be moved on the flowmeter body 1 through the threaded structure, and since the end of the rotating cylinder 2 is connected between the inner groove 22 in the linkage ring 21 and the corresponding arc-shaped linkage strip 5, the arc-shaped linkage strip 5 can be stably slid on the outer wall of the guide rod 11 when the rotating cylinder 2 is spirally moved, and then the insertion rod 31 can be pulled through the abutting between the clamping block 41 and the clamping groove 32 in the top arc-shaped supporting strip 4.

[0040] With the continuous rotation of the rotating cylinder 2, when the arc-shaped supporting piece 3 at the end of the insertion rod 31 abuts against the flange at the end of the pipeline, the driving force of the rotating cylinder 2 when rotating can drive the flowmeter body 1 to move to the side close to the connecting pipeline, so that the flange on the flowmeter body 1 can abut against the flange at the end of the connecting pipeline, and then the installation of the flowmeter body 1 can be quickly realized, so that the flowmeter can stably perform monitoring operation later.

[0041] The installation mode of the device is opposite to the traditional bolt and nut connection mode, the number of rotating operations required by the device is less, the operation steps of the staff can be reduced, the whole connecting component has high integrity, and the influence of the loss of nuts in the dismounting and mounting operation process on the whole installation can be reduced.

[0042] The above are only embodiments of the present application, and do not limit the patent scope of the present application, and any equivalent structure or equivalent process transformation made by using the content of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A small-bore vortex flowmeter characterized by, Include: The flowmeter body (1), the two sides of the pipeline in the flowmeter body (1) are sleeved with threaded connection rotating cylinder (2); The flange outside the pipeline end of the flowmeter body (1) is provided with symmetrically distributed arc-shaped support pieces (3), the arc-shaped support pieces (3) are provided with a plurality of insertion rods (31), and the insertion rods (31) are inserted into the flange inside the pipeline end of the inner flowmeter body (1); The end of the rotating cylinder (2) is provided with symmetrically distributed and movably connected arc-shaped linkage strips (5), the outer wall of the arc-shaped linkage strips (5) is provided with movably connected arc-shaped support strips (4), the outer part of the arc-shaped support strips (4) and the opposite part of the insertion rod (31) are provided with clamping blocks (41), and the outer wall of the insertion rod (31) and the opposite part of the clamping block (41) are provided with clamping grooves (32), and the inner wall of the clamping groove (32) and the outer wall of the clamping block (41) are in contact.

2. The low profile vortex flowmeter of claim 1, wherein, The flange of the pipeline end of the flowmeter body (1) is provided with a plurality of uniformly distributed guide rods (11) close to one side of the rotating cylinder (2), and the inner wall of the guide rod (11) and the inner wall of the arc-shaped linkage strip (5) are in contact and sliding connection.

3. The low profile vortex flowmeter of claim 1, wherein, The opposite ends of the two rotating cylinders (2) are provided with fixedly connected linkage rings (21), the outer wall of the linkage ring (21) is provided with a groove (22), and the inner wall of the groove (22) and the outer wall of the arc-shaped linkage strip (5) are in contact and sliding connection.

4. The low profile vortex flowmeter of claim 1, wherein, The side of the arc-shaped support strip (4) close to the arc-shaped linkage strip (5) is provided with a guide strip (42).

5. The low profile vortex flowmeter of claim 4, wherein, The inside of the arc-shaped linkage strip (5) and the opposite part of the guide strip (42) are provided with a guide hole (51), and the inner wall of the guide hole (51) and the outer wall of the guide strip (42) are in contact and sliding connection.

6. The low profile vortex flowmeter of claim 5, wherein, The outer wall of the guide strip (42) is provided with a spring (43), one end of the spring (43) is fixedly connected with the corresponding arc-shaped support strip (4), and the other end of the spring (43) is fixedly connected with the corresponding arc-shaped linkage strip (5).

7. The low profile vortex flowmeter of claim 3, wherein, The length of the rotating cylinder (2) is greater than the length of the guide strip (42).

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