Adjustable venturi tube

Abstract

The utility model discloses an adjustable venturi tube, and relates to the technical field of venturi tubes. The device comprises a throat, an inlet section and a diffusion section are fixedly matched with the two ends of the throat respectively, an arc-shaped rod is placed at the bottom of the throat, and threaded rods are fixedly matched with the two ends of the arc-shaped rod; and the supporting plate is located in the throat channel, a baffle is arranged in the supporting plate in a sliding fit mode, the baffle is arranged in the throat channel in a sliding fit mode, and threaded cylinders are arranged on the two sides of the supporting plate in a rotating fit mode. Through the arrangement of the threaded cylinder, the supporting plate is fixedly matched in the throat through the threaded cylinder under the action of a worker, and the damaged baffle is maintained through the supporting plate, so that the damaged baffle is convenient to maintain or replace; and the process of adjusting the material flow in the throat is more convenient.

Description

Technical Field

[0001] This utility model belongs to the field of venturi tubes, specifically, it relates to an adjustable venturi tube. Background Technology

[0002] A venturi tube is a device for measuring fluid pressure difference. It measures the pressure difference between the inlet section and the minimum section of the tube, based on the fact that the tube initially contracts and then gradually expands.

[0003] Patent application CN213067753U discloses an adjustable venturi tube. Paragraph 0019 of the specification describes a tube comprising an inlet section, a constriction section, a throat, and a diffuser section connected in sequence. The throat has an arc-shaped groove, and an adjustment mechanism and a liquid flow meter are fixed to its outer wall. The liquid flow meter can monitor the flow rate of the material passing through in real time. The bottom end of the adjustment mechanism has an arc groove of the same size as the arc-shaped groove. The liquid flow meter is located between the constriction section and the adjustment mechanism. The adjustment mechanism includes a baffle and a hydraulic cylinder, as shown in the cross-sectional view. The hydraulic cylinder is fixed to the top of the adjustment mechanism, and its piston rod is fixedly connected to the baffle. A control switch is also fixed to the top of the adjustment mechanism. Using this adjustable venturi tube, the material flow rate can be adjusted through the adjustment mechanism, meeting the diverse requirements of enterprises.

[0004] However, in practical applications, the flow rate inside the throat needs to be adjusted by the regulating mechanism. There is no regulating structure between the regulating mechanism and the throat. When the baffle is damaged inside the regulating mechanism, it cannot be repaired by disassembling the regulating mechanism, and therefore the flow rate of the material cannot be adjusted by the regulating mechanism.

[0005] To address these shortcomings, an adjustable venturi tube is proposed. Utility Model Content

[0006] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide an adjustable venturi tube.

[0007] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows:

[0008] An adjustable venturi tube includes a throat, with an inlet section and a diffuser section fixedly fitted at both ends of the throat, and an arc-shaped rod placed at the bottom of the throat, with threaded rods fixedly fitted at both ends of the arc-shaped rod.

[0009] A support plate is located inside the throat, and a baffle is slidably fitted inside the support plate. The baffle is slidably fitted inside the throat. Threaded cylinders are rotatably fitted on both sides of the support plate, and one end of the threaded cylinder is threadedly fitted to the periphery of one end of the threaded rod.

[0010] Optionally, an arc-shaped plate is fixedly fitted to the bottom of the throat, and an arc-shaped groove is formed on the outer side wall of the arc-shaped plate, with the arc-shaped rod located inside the arc-shaped groove.

[0011] Optionally, one end of the support plate is provided with a groove, and an electric push rod is fixedly fitted inside the groove. One side of the baffle is fixedly fitted on the output end of the electric push rod.

[0012] Optionally, both sides of the support plate are provided with annular grooves and a first placement groove connected to the annular grooves. The cross-sections of the annular grooves and the annular plate are both T-shaped. One end of the threaded cylinder is fixedly fitted with an annular plate, and the annular plate is rotatably fitted inside the annular groove.

[0013] Optionally, the outer wall of the threaded cylinder is fixedly fitted with multiple rubber strips.

[0014] Optionally, a second placement groove is provided on the outer wall of the throat, and the lower end of the support plate is located inside the second placement groove.

[0015] Optionally, a ring is fixedly fitted at one end of both the inlet section and the diffuser section, and a plurality of threaded holes are provided on one side of the ring.

[0016] Optionally, the inner wall of the threaded cylinder is provided with an internal thread, which engages with the upper end thread of the threaded rod.

[0017] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art. Of course, any product implementing the present invention does not necessarily need to achieve all of the following advantages at the same time:

[0018] The threaded cylinder is designed to secure the support plate inside the throat under the action of the operator. The support plate is also used to repair damaged baffles, making it easier to maintain or replace damaged baffles and making the process of adjusting the material flow inside the throat more convenient.

[0019] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0020] The accompanying drawings described below are merely some embodiments. Those skilled in the art can obtain other drawings based on these drawings without any creative effort.

[0021] In the picture:

[0022] Figure 1 This is a three-dimensional structural diagram of an embodiment of the present utility model;

[0023] Figure 2 This is a bottom view of an embodiment of the present invention.

[0024] Figure 3 This is a schematic diagram of the support plate structure according to an embodiment of the present invention;

[0025] Figure 4 This is a schematic diagram of an arc-shaped rod structure according to an embodiment of the present invention.

[0026] The attached diagram lists the components represented by each number as follows:

[0027] Throat 100, inlet section 101, annulus 102, threaded hole 103, arc plate 104, arc groove 105, arc rod 106, threaded rod 107, diffuser section 108, second placement groove 109, support plate 200, groove 201, baffle 202, annular groove 203, annular plate 204, threaded cylinder 205, rubber strip 206, first placement groove 207.

[0028] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0029] The present invention will now be described in further detail with reference to the accompanying drawings.

[0030] Please see Figure 1-4 As shown, this embodiment provides an adjustable venturi tube, including a throat 100. The two ends of the throat 100 are respectively fixedly fitted with an inlet section 101 and a diffuser section 108. An arc-shaped rod 106 is placed at the bottom of the throat 100, and threaded rods 107 are fixedly fitted at both ends of the arc-shaped rod 106.

[0031] A support plate 200 is located inside the throat 100. A baffle 202 is slidably fitted inside the support plate 200. The baffle 202 is slidably fitted inside the throat 100. Threaded cylinders 205 are rotatably fitted on both sides of the support plate 200. One end of the threaded cylinder 205 is threadedly fitted to the circumference of one end of the threaded rod 107.

[0032] Working principle:

[0033] First, place the arc-shaped rod 106 at the bottom of the throat 100, then place the bottom of the support plate 200 inside the throat 100. Then rotate the threaded cylinder 205. The lower end of the threaded cylinder 205 drives the arc-shaped rod 106 to be fixedly fitted at the bottom of the throat 100 through the threaded rod 107, thereby fixing the support plate 200 inside the throat 100. Then slide the baffle 202 and adjust the flow rate of the material in the throat 100 through the baffle 202.

[0034] The threaded cylinder 205 is provided so that the support plate 200 can be fixedly fitted inside the throat 100 by the operator. The support plate 200 can also be used to repair the damaged baffle 202, which facilitates the maintenance or replacement of the damaged baffle 202 and makes the process of adjusting the material flow inside the throat 100 more convenient.

[0035] To make the sliding process of the annular plate 204 on one side of the support plate 200 more stable in this embodiment, the following improvements are made: Figure 1-4 As shown, in this embodiment, an arc-shaped plate 104 is fixedly fitted to the bottom of the throat 100. An arc-shaped groove 105 is formed on the outer wall of the arc-shaped plate 104. An arc-shaped rod 106 is located inside the arc-shaped groove 105. A groove 201 is formed at one end of the support plate 200. An electric push rod is fixedly fitted inside the groove 201. One side of the baffle 202 is fixedly fitted to the output end of the electric push rod. Both sides of the support plate 200 are provided with annular grooves 203 and a first placement groove 207 connected to the annular grooves 203. The cross-sections of the annular grooves 203 and the annular plate 204 are T-shaped. Threaded cylinder 2 One end of the threaded cylinder 205 is fixedly fitted with an annular plate 204, which is rotatably fitted inside the annular groove 203. Multiple rubber strips 206 are fixedly fitted on the outer wall of the threaded cylinder 205. A second placement groove 109 is opened on the outer wall of the throat 100. The lower end of the support plate 200 is located inside the second placement groove 109. One end of the inlet section 101 and the diffuser section 108 are fixedly fitted with a ring 102. Multiple threaded holes 103 are opened on one side of the ring 102. The inner wall of the threaded cylinder 205 is provided with an internal thread, which is threadedly fitted with the upper end of the threaded rod 107.

[0036] In this embodiment, the operator first drives the threaded cylinder 205 to rotate inside the first placement groove 207 by the rubber strip 206. The threaded cylinder 205 drives the annular plate 204 to rotate inside the annular groove 203. The threaded cylinder 205 is threaded to the upper end of the threaded rod 107 through the internal thread, and the threaded rod 107 positions the arc rod 106 inside the arc rod 106, thereby completing the fixation of the support plate 200.

[0037] The annular groove 203 is provided so that the annular plate 204 can rotate inside the annular groove 203 under the action of the threaded cylinder 205, and the annular groove 203 guides the rotation direction of the annular plate 204, reducing the problem of the annular plate 204 tilting during rotation and improving the stability of the annular plate 204 during rotation.

[0038] This utility model is not limited to the above-described embodiments. Anyone should know that structural changes made under the guidance of this utility model, and any technical solutions that are the same as or similar to this utility model, fall within the protection scope of this utility model. Technical aspects, shapes, and structures not described in detail in this utility model are all publicly known technologies.

Claims

1. An adjustable venturi tube, characterized in that, include: The throat (100) has an inlet section (101) and a diffuser section (108) fixedly fitted at both ends. An arc-shaped rod (106) is placed at the bottom of the throat (100), and threaded rods (107) are fixedly fitted at both ends of the arc-shaped rod (106). A support plate (200) is located inside the throat (100). A baffle (202) is slidably fitted inside the support plate (200). The baffle (202) is slidably fitted inside the throat (100). Threaded cylinders (205) are rotatably fitted on both sides of the support plate (200). One end of the threaded cylinder (205) is threadedly fitted on the periphery of one end of the threaded rod (107).

2. An adjustable venturi tube according to claim 1, characterized in that, The bottom of the throat (100) is fixedly fitted with an arc plate (104), and the outer side wall of the arc plate (104) is provided with an arc groove (105), and the arc rod (106) is located inside the arc groove (105).

3. An adjustable venturi tube according to claim 1, characterized in that, The support plate (200) has a groove (201) at one end, and an electric push rod is fixedly fitted inside the groove (201). One side of the baffle (202) is fixedly fitted on the output end of the electric push rod.

4. An adjustable venturi tube according to claim 1, characterized in that, Both sides of the support plate (200) are provided with annular grooves (203) and a first placement groove (207) connected to the annular grooves (203). The cross-sections of the annular grooves (203) and the annular plate (204) are T-shaped. One end of the threaded cylinder (205) is fixedly fitted with the annular plate (204), and the annular plate (204) is rotatably fitted inside the annular grooves (203).

5. An adjustable venturi tube according to claim 1, characterized in that, The outer wall of the threaded cylinder (205) is fixedly fitted with multiple rubber strips (206).

6. An adjustable venturi tube according to claim 1, characterized in that, The outer wall of the throat (100) is provided with a second placement groove (109), and the lower end of the support plate (200) is located inside the second placement groove (109).

7. An adjustable venturi tube according to claim 1, characterized in that, Both the inlet section (101) and the diffuser section (108) are fixedly fitted with a ring (102) at one end, and a plurality of threaded holes (103) are provided on one side of the ring (102).

8. An adjustable venturi tube according to claim 1, characterized in that, The inner wall of the threaded cylinder (205) is provided with an internal thread, which is threaded to the upper end of the threaded rod (107).

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