Oblique insertion type venturi short tube

Abstract

The utility model discloses an obliquely-inserted short Venturi tube, and belongs to the technical field of Venturi tubes. The oblique insertion type short Venturi tube comprises a Venturi tube body, the Venturi tube body is provided with a sliding sleeve assembly, the two sides of the outer wall of the sliding sleeve assembly are connected with telescopic mechanisms respectively, the bottom ends of the two telescopic mechanisms are connected with a fixing plate, one side of the fixing plate is provided with a through hole, the sliding sleeve assembly comprises an outer ring, and the outer ring is provided with a through hole. The outer wall of the Venturi tube body is slidably connected with an outer ring, two sides of the outer wall of the outer ring are rotatably connected with shafts respectively, one sides of the two shafts are in threaded connection with screws respectively, the shafts are connected with the top end of the telescopic mechanism through the screws, and the Venturi tube body comprises a cylinder section, a contraction section, a throat, a diffusion section and an external connection section. One end of the cylinder section is communicated with the contraction section, the throat is communicated between the contraction section and the diffusion section, and one end of the diffusion section is communicated with the external connection section.

Description

Technical Field

[0001] This utility model relates to the field of Venturi tube technology, specifically to a slanted Venturi short tube. Background Technology

[0002] Venturi tubes can be used as instruments for measuring flow velocity; they can also be used as high-efficiency gas cooling, purification, or absorption equipment. Venturi tubes are classified into internal and external types based on their structure. Venturi tubes play a significant role in measuring combustion air, cold air, and gas (blast furnace gas, coke oven gas, converter gas) in hot blast stoves of steel plants, as well as in measuring large-diameter, low-velocity primary and secondary air pipes in thermal power plants.

[0003] Currently, the existing methods for tilting Venturi tubes can only be performed manually by hand. Due to the lack of a stable mechanism, hand operation is prone to shaking, which can cause tilting deviations and hinder precise tilting installation. Utility Model Content

[0004] To address the problem that existing Venturi tubes are not convenient for inclined insertion, this invention provides an inclined Venturi short tube.

[0005] In view of the above problems, the technical solution proposed by this utility model is as follows:

[0006] A slanted Venturi tube includes a Venturi tube body, a sliding sleeve assembly, telescopic mechanisms connected to both sides of the outer wall of the sliding sleeve assembly, a fixing plate connected to the bottom end of the two telescopic mechanisms, a through hole on one side of the fixing plate, an outer ring of the sliding sleeve assembly, and a shaft rotatably connected to both sides of the outer wall of the outer ring. A screw is threaded to one side of each shaft, and the shaft is connected to the top end of the telescopic mechanism via the screw.

[0007] Furthermore, the Venturi tube body includes a cylindrical section, a constriction section, a throat, a diffuser section, and an external connection section. One end of the cylindrical section is connected to the constriction section, the constriction section and the diffuser section are connected to the throat, and one end of the diffuser section is connected to the external connection section.

[0008] Furthermore, the outer walls of the cylindrical section, the throat, and the outer connecting section are respectively provided with channels, and pressure tapping pipes are inserted and connected inside the channels.

[0009] The advantage of adopting the above-mentioned further solution is that the arrangement of the channel provides installation space for the connection of the pressure tapping pipe.

[0010] Furthermore, the outer wall of the cylindrical section is provided with a sliding groove, and the inner walls of the outer ring are respectively equipped with sliders that engage with the sliding groove.

[0011] The advantage of adopting the above-mentioned further solution is that by sliding the slider inside the groove, the outer ring can maintain stable lifting and lowering movement on the outside of the cylindrical section.

[0012] Furthermore, the telescopic mechanism includes a housing, and a sliding plate is slidably connected inside the housing. The top of the sliding plate extends to the top of the housing and has a threaded hole. One end of the screw engages with the top of the threaded hole.

[0013] The advantage of adopting the above-mentioned further solution is that the engagement between the screw and the threaded hole enables a tight connection between the shaft and the slide plate.

[0014] Furthermore, a lead screw is threaded into the internal thread of the threaded hole, and a hollow groove is provided at the bottom of the outer wall of the outer shell. A dial wheel is rotatably connected inside the hollow groove, and the top surface of the dial wheel is connected to the bottom end of the lead screw.

[0015] The beneficial effect of adopting the above-mentioned further solution is that the hollowed-out groove provides a position for the installation of the dial wheel, and by rotating the dial wheel, it can drive the lead screw to rotate in both directions, thereby causing the slide plate to slide back and forth inside the shell.

[0016] Furthermore, the pressure tapping pipe includes a pipe fitting, and a plurality of fixing piles are installed on one side of the inner wall of the pipe fitting, with a central shaft connected to one end of each fixing pile.

[0017] The advantage of adopting the above-mentioned further solution is that the installation and use of the fixing piles makes it easier to fix the spindle inside the pipe.

[0018] Furthermore, the fixed piles are arranged in a cross shape among themselves.

[0019] The advantage of adopting the above-mentioned further solution is that the installation and use of the fixing piles makes it easier to fix the spindle inside the pipe.

[0020] Compared with the prior art, the beneficial effects of this utility model are:

[0021] This type of angled insertion Venturi tube, through the cooperation of the sliding sleeve assembly, telescopic mechanism, fixing plate, and perforation, ensures the stability of the Venturi tube during angled insertion, thereby improving the accuracy of angled insertion. The perforation on the fixing plate facilitates the insertion of fasteners, allowing the sliding sleeve assembly and telescopic mechanism to be fixed in a designated position. Furthermore, the length adjustment function of the telescopic mechanism allows the outer ring of the sliding sleeve assembly to move the Venturi tube body to different heights. The rotation of the shaft allows the Venturi tube body inside the outer ring to tilt at any angle until the required tilt angle is met, thus facilitating precise insertion and connection. Attached Figure Description

[0022] Figure 1 A three-dimensional schematic diagram of a slanted Venturi tube provided for this utility model;

[0023] Figure 2 A schematic diagram of the main body of a slanted venturi short tube provided by this utility model;

[0024] Figure 3 A schematic diagram of a sliding sleeve assembly for a slanted Venturi tube provided by this utility model;

[0025] Figure 4 A schematic diagram showing the unfolded telescopic mechanism of a slanted Venturi tube provided by this utility model;

[0026] Figure 5 This is a schematic diagram of the pressure tapping tube of a slanted Venturi tube provided by this utility model.

[0027] In the diagram: 100, Venturi tube body; 1001, cylindrical section; 1002, contraction section; 1003, throat; 1004, diffusion section; 1005, external section; 1006, channel; 1007, slide groove; 200, sliding sleeve assembly; 2001, outer ring; 2002, shaft; 2003, screw; 2004, slider; 300, telescopic mechanism; 3001, outer shell; 3002, sliding plate; 3003, lead screw; 3004, threaded hole; 3005, hollowed-out groove; 3006, dial wheel; 400, fixing plate; 500, perforation; 600, pressure tapping tube; 6001, fitting; 6002, shaft rod; 6003, fixing post. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Example 1

[0030] Please see Figures 1-5 This utility model provides a technical solution: a slanted Venturi tube, including a Venturi tube body 100, a sliding sleeve assembly 200, and telescopic mechanisms 300 connected to both sides of the outer wall of the sliding sleeve assembly 200. A fixing plate 400 is connected to the bottom end of the two telescopic mechanisms 300, and a through hole 500 is provided on one side of the fixing plate 400. The sliding sleeve assembly 200 includes an outer ring 2001, which is slidably connected to the outer wall of the Venturi tube body 100. Shaft members 2002 are rotatably connected to both sides of the outer wall of the outer ring 2001, and screws 200 are threaded to one side of each shaft member 2002. 3. The shaft 2002 is connected to the top of the telescopic mechanism 300 by screws 2003. By opening a through hole 500 in the fixed plate 400, it is easy to insert fasteners, so that the sliding sleeve assembly 200 and the telescopic mechanism 300 can be fixed in a specified position. Through the length adjustment function of the telescopic mechanism 300, the outer ring 2001 in the sliding sleeve assembly 200 can drive the venturi tube body 100 to move to different heights. Then, by rotating the shaft 2002, the venturi tube body 100 inside the outer ring 2001 can tilt at any angle until the required tilt angle is met, so as to facilitate precise insertion and docking.

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Example 2

[0033] Please see Figures 1-5As an embodiment of this utility model, the Venturi tube body 100 further includes a cylindrical section 1001, a contraction section 1002, a throat 1003, a diffuser section 1004, and an outer section 1005. One end of the cylindrical section 1001 is connected to the contraction section 1002, the throat 1003 is connected between the contraction section 1002 and the diffuser section 1004, and one end of the diffuser section 1004 is connected to the outer section 1005. The outer walls of the cylindrical section 1001, the throat 1003, and the outer section 1005 are respectively provided with... The channel 1006 has a pressure tapping tube 600 inserted inside it. The channel 1006 provides installation space for the pressure tapping tube 600. The outer wall of the cylindrical section 1001 has a sliding groove 1007. The inner walls of the outer ring 2001 are respectively equipped with sliders 2004 that engage with the sliding groove 1007. By sliding the sliders 2004 inside the sliding groove 1007, the outer ring 2001 can maintain stable lifting and lowering movement on the outside of the cylindrical section 1001.

[0034] Example 3

[0035] Please see Figures 1-5 As an embodiment of this utility model, the telescopic mechanism 300 further includes a housing 3001, a sliding plate 3002 slidably connected inside the housing 3001, the top end of the sliding plate 3002 extending to the top of the housing 3001 and having a threaded hole 3004, one end of a screw 2003 engaging with the top of the threaded hole 3004, thereby forming a tight connection between the shaft 2002 and the sliding plate 3002 through the engagement relationship between the screw 2003 and the threaded hole 3004, a lead screw 3003 threadedly connected inside the threaded hole 3004, a hollow groove 3005 formed at the bottom end of the outer wall of the housing 3001, a dial wheel 3006 rotatably connected inside the hollow groove 3005, the top surface of the dial wheel 3006 engaging with the lead screw 3003. The bottom connection, through the setting of the hollow groove 3005, provides a position for the installation of the dial wheel 3006. By rotating the dial wheel 3006, it can drive the lead screw 3003 to rotate forward and backward, thereby causing the slide plate 3002 to slide back and forth inside the outer shell 3001. The pressure tapping tube 600 includes a tube 6001. Several fixing posts 6003 are installed on one side of the inner wall of the tube 6001. One end of the fixing posts 6003 is connected to the shaft rod 6002. The installation and use of the fixing posts 6003 facilitates the fixing of the shaft rod 6002 inside the tube 6001. The fixing posts 6003 are arranged in a cross shape. The installation and use of the fixing posts 6003 facilitates the fixing of the shaft rod 6002 inside the tube 6001.

[0036] Specifically, the working principle of this type of obliquely inserted Venturi tube is as follows: First, check the structure of the Venturi tube for integrity. Only after ensuring the structure is intact should it be put into use. A through hole 500 is made in the fixed plate 400 to facilitate the insertion of fasteners, allowing the sliding sleeve assembly 200 and the telescopic mechanism 300 to be fixed in the designated position. Then, by rotating the dial wheel 3006, it drives the lead screw 3003 to rotate in both directions, thereby causing the slide plate 3002 to slide back and forth inside the outer casing 3001. Simultaneously, the engagement between the screw 2003 and the threaded hole 3004... The shaft 2002 and the slide plate 3002 form a tight connection. Through the length adjustment function of the telescopic mechanism 300, the outer ring 2001 in the sliding sleeve assembly 200 can drive the Venturi tube body 100 to move to different heights. Then, through the rotation of the shaft 2002, the Venturi tube body 100 inside the outer ring 2001 can tilt at any angle until the required tilt angle is met, thereby facilitating precise insertion and docking. Furthermore, through the sliding of the slider 2004 inside the slide groove 1007, the outer ring 2001 can maintain stable lifting and lowering movement on the outside of the cylindrical section 1001.

Claims

1. A venturi spool of the insert type, characterized in that, The utility model provides a venturi tube body (100), the outer wall of venturi tube body (100) is equipped with sliding sleeve assembly (200), the outer wall both sides of sliding sleeve assembly (200) are connected with telescopic mechanism (300) respectively, the bottom of two telescopic mechanism (300) is connected with fixed plate (400), one side of fixed plate (400) is equipped with perforation (500), sliding sleeve assembly (200) includes outer ring (2001), the outer wall of venturi tube body (100) is connected with outer ring (2001) slidingly, the outer wall both sides of outer ring (2001) are rotatably connected with axle (2002) respectively, one side of two axle (2002) is threadedly connected with screw (2003) respectively, axle (2002) is connected with the top of telescopic mechanism (300) through screw (2003).

2. A swan-neck venturi spool as defined in claim 1, wherein The venturi tube body (100) includes a cylindrical segment (1001), a converging segment (1002), a throat (1003), a diverging segment (1004), and an external segment (1005). One end of the cylindrical segment (1001) is connected to the converging segment (1002). The converging segment (1002) is connected to the diverging segment (1004) through the throat (1003). One end of the diverging segment (1004) is connected to the external segment (1005).

3. A swan-neck venturi spool as defined in claim 2, wherein, The outer walls of the cylindrical segment (1001), the throat (1003), and the external segment (1005) are each provided with a hole (1006). The inside of the hole (1006) is connected with a pressure tapping pipe (600).

4. A swan-neck venturi spool as defined in claim 3, wherein, The outer wall of the cylindrical segment (1001) is provided with a sliding groove (1007). The inner walls of the outer ring (2001) are each provided with a sliding block (2004) that is mutually engaged with the sliding groove (1007).

5. A swan-neck venturi spool as defined in claim 1, wherein, The telescopic mechanism (300) includes an outer shell (3001). The inside of the outer shell (3001) is slidably connected with a sliding plate (3002). The top end of the sliding plate (3002) extends to the top of the outer shell (3001) and is provided with a threaded hole (3004). One end of the screw (2003) is mutually engaged with the inside top of the threaded hole (3004).

6. A bevel insert type venturi spool as defined in claim 5 wherein, The inside of the threaded hole (3004) is threadedly connected with a lead screw (3003). The outer wall bottom end of the outer shell (3001) is provided with a hollow groove (3005). The inside of the hollow groove (3005) is rotatably connected with a handle (3006). The top surface of the handle (3006) is connected with the bottom end of the lead screw (3003).

7. A swan-neck venturi spool as defined in claim 3 wherein, The pressure tapping pipe (600) includes a pipe (6001). The inner wall of the pipe (6001) is provided with a plurality of fixed stakes (6003) on one side. One end of the plurality of fixed stakes (6003) is connected with a shaft rod (6002).

8. A bevel insert type venturi spool as defined in claim 7 wherein, The plurality of fixed stakes (6003) are distributed in a cross shape.

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