Venturi tube with external protection structure

Abstract

The utility model discloses a venturi tube of external protection structure, including tube body and base, the tube body includes throat portion, contraction section and diffusion section, contraction section and diffusion section both bottom are fixedly connected with mounting seat, the both sides of mounting seat bottom are provided with mounting hole, the base top is fixedly connected with a plurality of mounting post, the mounting post top is provided with the mounting hole. A column body of the mounting column is in threaded connection with a nut matched with the mounting column, a pair of protection plates is mounted at the top of the base, a plurality of positioning holes are formed in the bottom of each protection plate, a bolt is inserted into each positioning hole, a plurality of buffer strips are mounted on the outer wall of each protection plate, and a waterproof cover is mounted at the top of each protection plate. According to the utility model, external protection can be carried out on the venturi tube to prevent the tube body from being directly damaged by physical impact such as collision, and the venturi tube has a waterproof function, so that the venturi tube can be prevented from being rusted due to long-time wetting when working in an outdoor rainy day environment.

Description

Technical Field

[0001] The utility model belongs to the technical field of venturi tubes, in particular to a venturi tube with an external protective structure. Background Art

[0002] The venturi tube is a laboratory device widely used in chemical, biological and pharmaceutical research. It is designed to collect gas samples or regulate gas flow. The venturi tube is often used in chemical laboratories to collect gas products, separate gas components in a mixture, measure gas production rate and measure gas volume, etc. In addition, in biological and pharmaceutical research, the venturi tube can also be used to determine the concentration of gas products and measure cell respiration rate, etc.

[0003] At present, there are some Venturi tube structures on the market, such as an insertable Venturi tube disclosed on the Chinese Patent Network, with the announcement number CN208547388U. This Venturi tube has the advantages of being detachable, convenient for cleaning dust and impurities in the pressure-taking tube, and not affecting the measurement accuracy. However, there are some defects and deficiencies that need to be improved: (1) Some existing Venturi tubes lack an external protective structure. When the Venturi tube is subjected to physical impacts such as collisions, it is difficult to provide buffering protection, so that the external force will directly act on the Venturi tube, thereby causing damage to the Venturi tube; (2) Some existing Venturi tubes lack effective waterproof measures. When it is rainy outdoors, rainwater will continue to drip onto the Venturi tube, which will cause rust on the surface of the Venturi tube over time, thereby affecting its service life. Therefore, in view of the above problems, the Venturi tube with an external protective structure provided by the utility model is of great significance. Utility Model Content

[0004] The utility model provides a venturi tube with an external protective structure, wherein the protective plate can be used to provide external protection for the tube body to prevent the tube body from being directly damaged by physical impacts such as collisions, and the impact force can be effectively decomposed by various buffer strips to reduce the physical impact on the protective plate, thereby extending its service life; the top of the entire tube body can be covered by a waterproof cover, and when the venturi tube works in an outdoor rainy environment, the waterproof cover can play a role in waterproofing and rainproofing, thereby effectively preventing the surface of the tube body from rusting due to long-term exposure to water, and in summary, solving the problems in the background technology.

[0005] In order to solve the above technical problems, the utility model is achieved through the following technical solutions:

[0006] The utility model discloses a venturi tube with an external protection structure, comprising a tube body and a base, wherein the tube body comprises a throat, a contraction section and a diffusion section, the bottoms of the contraction section and the diffusion section are fixedly connected with mounting seats, the two sides of the mounting seats are L-shaped, and the two sides of the bottom of the mounting seats are provided with mounting holes, the base is located below the tube body, and a plurality of mounting columns are fixedly connected with the top thereof, the column bodies of the mounting columns are engraved with external threads, and nuts matched therewith are threadedly connected therewith, a pair of protection plates are installed at the top of the base, the top and bottom ends of the protection plates are L-shaped, a plurality of positioning holes are provided at the bottom thereof, and bolts are inserted into each of the positioning holes, a plurality of buffer strips are installed on the outer wall of the protection plate, the buffer strips are long strips, the cross section of the buffer strips are semicircular, and the buffer strips are equidistantly linearly distributed along the height direction of the protection plate, a waterproof cover is installed at the top of the protection plate, the two sides of the waterproof cover are L-shaped, and the top end surface of the waterproof cover is in an inverted V shape.

[0007] Furthermore, the number of the mounting posts and the mounting holes are the same, the diameters are equal, and the center of each mounting post corresponds one-to-one to the center of each mounting hole.

[0008] Furthermore, a plurality of thread grooves are provided on the top surface of the base, and the inner walls of the thread grooves are engraved with internal threads matching with bolts, the number and diameter of which are the same as those of the corresponding positioning holes, and the center of each thread groove corresponds one-to-one to the center of each positioning hole.

[0009] Furthermore, the bottom of the protective plate is fixedly connected to a limiting block, and a limiting groove is provided on the top surface of the base. Both the limiting groove and the limiting block are rectangular, and the groove width of the limiting groove is equal to the width of the limiting block.

[0010] Furthermore, a clamping block is fixedly connected to the side wall of the buffer strip, and a plurality of clamping grooves are provided on the outer wall surface of the protective plate. The clamping grooves and the clamping blocks are both T-shaped, and their sizes are correspondingly equal.

[0011] Furthermore, a pair of fixing rods are fixedly connected to the inner wall of the protective plate, and the ends of the fixing rods are fixedly connected to a shock absorbing plate. The shock absorbing plate is arc-shaped, and a layer of protective pad is arranged on the inner surface thereof.

[0012] Furthermore, sliders are fixedly connected to the inner walls of the bottom ends of both sides of the waterproof cover, and a slide groove is provided on the top side wall of the protective plate. The slide groove and the slider are both rectangular, and the groove width of the slide groove is equal to the thickness of the slider.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] (1) When the Venturi tube of the utility model has an external protection structure, the protection plate can protect the tube body externally to prevent the tube body from being directly damaged by physical impact such as collision, and the impact force can be effectively decomposed by each buffer strip to reduce the physical impact on the protection plate, thereby extending its service life;

[0015] (2) When the Venturi tube with an external protective structure in the utility model is in use, the top of the entire tube body can be covered by a waterproof cover. When the Venturi tube is working outdoors in a rainy environment, the waterproof cover can play a role in waterproofing and blocking rain, thereby effectively preventing the surface of the tube body from rusting due to long-term contact with water.

[0016] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 A schematic diagram of the structure of a Venturi tube of an external protection structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the tube body in the utility model;

[0020] Figure 3 It is a structural schematic diagram of the base in the utility model;

[0021] Figure 4 It is a structural schematic diagram of the protective plate in the utility model;

[0022] Figure 5 It is a front view of the protective plate in the utility model;

[0023] Figure 6 It is a schematic diagram of the structure of the buffer strip in the utility model;

[0024] Figure 7 It is a front view of the buffer strip in the utility model;

[0025] Figure 8 It is a structural schematic diagram of the waterproof cover in the utility model;

[0026] Fig. 9 It is a front view of the waterproof cover in the utility model.

[0027] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0028] 1. Tube body; 2. Base; 3. Mounting seat; 4. Mounting hole; 5. Mounting column; 6. Nut; 7. Protective plate; 8. Positioning hole; 9. Bolt; 10. Buffer strip; 11. Waterproof cover; 12. Threaded groove; 13. Limit block; 14. Limit groove; 15. Block; 16. Slot; 17. Fixing rod; 18. Shock-absorbing plate; 19. Protective pad; 20. Slider; 21. Slide groove. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] In the description of the present invention, it should be understood that terms such as "relative", "one end", "inside", "lateral", "end", "two ends", "both sides", "front", "one end face", "the other end face" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0031] See also Figure 1-9As shown, a venturi tube with an external protection structure of the utility model comprises a tube body 1 and a base 2. The tube body 1 comprises a throat, a contraction section and a diffusion section. The bottoms of the contraction section and the diffusion section are fixedly connected with mounting seats 3. Both sides of the mounting seats 3 are L-shaped, and both sides of the bottom of the mounting seats 3 are provided with mounting holes 4. The base 2 is located below the tube body 1, and a plurality of mounting posts 5 are fixedly connected to the top thereof. The column bodies of the mounting posts 5 are engraved with external threads, and nuts 6 matched therewith are threadedly connected thereto. A pair of protection plates 7 are installed on the top of the base 2. The protection plates 7 are respectively located on the front and rear sides of the tube body 1, and can provide external protection for the tube body 1 to prevent the tube body 1 from being directly damaged by physical impacts such as collisions. The top and bottom ends of the protection plates 7 are both L-shaped, and a plurality of positioning holes 8 are provided at the bottom thereof, each Bolts 9 are inserted into the positioning holes 8. A plurality of buffer strips 10 are installed on the outer wall of the protective plate 7. The buffer strips 10 are long strips with a semicircular cross-section, and the buffer strips 10 are equidistantly linearly distributed along the height direction of the protective plate 7. When the protective plate 7 is impacted by external force, the impact force can be effectively decomposed by each buffer strip 10 to reduce the physical impact on the protective plate 7, thereby extending its service life. A waterproof cover 11 is installed on the top of the protective plate 7. The two sides of the waterproof cover 11 are L-shaped, and the top end face of the waterproof cover 11 is inverted V-shaped. The waterproof cover 11 can cover the top of the entire tube body 1. When the venturi tube works in an outdoor rainy environment, the waterproof cover 11 can play a role in waterproofing and rainproofing, thereby effectively avoiding rust on the surface of the tube body 1 due to long-term water exposure.

[0032] Among them, the number of mounting columns 5 and the mounting holes 4 are the same, the diameters are equal, and the center of each mounting column 5 corresponds to the center of each mounting hole 4. When the tube body 1 is placed on the base 2, each mounting column 5 can be aligned with and pass through the corresponding mounting hole 4. At this time, the nut 6 is threadedly connected to each mounting column 5 and tightened. The mounting seat 3 together with the tube body 1 can be fixed on the base 2 through the mutual cooperation between the mounting columns 5, the mounting holes 4, and the nuts 6. The tube body 1 can be removed from the base 2 by unscrewing the nuts 6, so that the tube body 1 can be regularly maintained.

[0033] Among them, a plurality of thread grooves 12 are provided on the top surface of the base 2, and the inner wall of the thread groove 12 is engraved with an internal thread that matches the bolt 9. The number and diameter of the internal thread grooves 12 are the same as those of the positioning holes 8, and the center of each thread groove 12 corresponds one by one to the center of each positioning hole 8. When the protective plate 7 is placed on the base 2, the end of each bolt 9 can pass through the positioning hole 8 and be screwed into the corresponding thread groove 12. At this time, the protective plate 7 can be fixed to the base 2 through the mutual cooperation between the bolt 9, the positioning hole 8, and the thread groove 12. The protective plate 7 can be removed from the base 2 by unscrewing the bolt 9, so that the protective plate 7 can be replaced when it is damaged.

[0034] Among them, the bottom of the protective plate 7 is fixedly connected to the limiting block 13, and the top surface of the base 2 is provided with a limiting groove 14. The limiting groove 14 and the limiting block 13 are both rectangular, and the groove width of the limiting groove 14 is equal to the width of the limiting block 13. The limiting block 13 can be aligned and fit in the limiting groove 14. The protective plate 7 can be quickly positioned through the mutual cooperation between the limiting block 13 and the limiting groove 14, so as to facilitate the installation and fixation of the protective plate 7.

[0035] Among them, the side wall of the buffer strip 10 is fixedly connected with a card block 15, and the outer wall surface of the protective plate 7 is provided with a plurality of card slots 16. The card slots 16 and the card blocks 15 are both T-shaped, and their sizes are correspondingly equal. The card block 15 can be aligned and fit in the card slot 16. Through the mutual cooperation between the card block 15 and the card slot 16, each buffer strip 10 can be fixed on the protective plate 7. When the buffer strip 10 is damaged, the corresponding buffer strip 10 can be removed from the protective plate 7 by sliding back and forth, so that the damaged buffer strip 10 can be replaced separately.

[0036] Among them, a pair of fixing rods 17 are fixedly connected to the inner wall of the protective plate 7, and a shock-absorbing plate 18 is fixedly connected to the end of the fixing rod 17. The shock-absorbing plate 18 is arc-shaped. When the protective plate 7 is installed on the base 2, the shock-absorbing plate 18 can be respectively attached to the two sides of the contraction part and the diffusion part of the tube body 1. At this time, the tube body 1 can be clamped and fixed by the shock-absorbing plate 18 to achieve a shock-absorbing effect, thereby reducing the vibration generated by the tube body 1 when it is working. A protective pad 19 is provided on the inner surface of the shock-absorbing plate 18. The protective pad 19 is made of elastic materials such as sponge and is fixed by glue or the like. When the shock-absorbing plate 18 is attached to the surface of the tube body 1, the protective pad 19 can be used to play an anti-wear protection role to avoid direct contact between the surface of the tube body 1 and the shock-absorbing plate 18 to cause wear.

[0037] Among them, the inner walls of the bottom ends of both sides of the waterproof cover 11 are fixedly connected with sliders 20, and the top side walls of the protective plate 7 are provided with slide grooves 21. The slide grooves 21 and the sliders 20 are both rectangular, and the groove width of the slide grooves 21 is equal to the thickness of the sliders 20. The sliders 20 can be aligned and fit in the slide grooves 21. The waterproof cover 11 can be fixed on the protective plate 7 through the mutual cooperation between the sliders 20 and the slide grooves 21. The waterproof cover 11 can be removed from the protective plate 7 by sliding back and forth, so that the waterproof cover 11 can be cleaned or replaced.

[0038] The circuits, electronic components and chip modules involved in the utility model are all existing technologies and can be fully implemented by those skilled in the art. Needless to say, the content protected by the utility model does not involve improvements to software and methods.

[0039] The standard parts used in the application documents can all be purchased from the market. All the components in this application document can be customized according to the description in the specification and drawings. The specific connection methods of each part adopt mature conventional means such as bolts, rivets, welding, etc. in the prior art. Machinery, parts and equipment all adopt conventional models in the prior art. The electrical components appearing in this article are all electrically connected to the external main controller and 220V AC power, and the main controller can be a conventional known device that controls the LED lamp body, etc.

[0040] The working principle of the utility model is:

[0041] When the utility model is in use, the pipe body 1 can be installed on the base 2. During installation, the various mounting columns 5 on the base 2 are aligned and passed through the corresponding mounting holes 4 on the mounting seat 3 at the bottom of the pipe body 1, and then the nuts 6 are threadedly connected to the various mounting columns 5 and tightened. The mounting seat 3 together with the pipe body 1 can be fixed on the base 2 through the mutual cooperation between the mounting columns 5, the mounting holes 4, and the nuts 6. The base 2 is fixedly installed with a protective plate 7 through the mutual cooperation between the bolts 9, the positioning holes 8, and the threaded grooves 12. The protective plates 7 are respectively located on the front and rear sides of the pipe body 1, and the pipe body 1 can be externally protected. Protection is provided to prevent the pipe body 1 from being directly damaged by physical impacts such as collisions, and a plurality of buffer strips 10 are installed on the outer wall of the protective plate 7. When the protective plate 7 is impacted by external force, the impact force can be effectively decomposed by each buffer strip 10 to reduce the physical impact on the protective plate 7, thereby extending its service life. A waterproof cover 11 is installed on the top of the protective plate 7. The waterproof cover 11 can cover the top of the entire pipe body 1. When the venturi tube works in an outdoor rainy environment, the waterproof cover 11 can play a role in waterproofing and rainproofing, thereby effectively preventing the surface of the pipe body 1 from rusting due to continuous water contact.

[0042] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A Venturi tube with an external protective structure, characterized in that: The utility model comprises a tube body and a base, wherein the tube body comprises a throat, a contraction section and a diffusion section, the bottoms of the contraction section and the diffusion section are fixedly connected with a mounting seat, the two sides of the mounting seat are L-shaped, and the two sides of the bottom of the mounting seat are provided with mounting holes, the base is located below the tube body, and a plurality of mounting columns are fixedly connected with the top thereof, the column body of the mounting column is engraved with an external thread, and a nut matched therewith is threadedly connected thereto, a pair of protective plates are installed on the top of the base, the top and bottom ends of the protective plates are L-shaped, a plurality of positioning holes are provided at the bottom thereof, a bolt is inserted into each of the positioning holes, a plurality of buffer strips are installed on the outer wall of the protective plate, the buffer strips are long strips, the cross section of the buffer strips are semicircular, and the buffer strips are equidistantly linearly distributed along the height direction of the protective plate, a waterproof cover is installed on the top of the protective plate, the two sides of the waterproof cover are L-shaped, and the top end face of the waterproof cover is in an inverted V shape.

2. The Venturi tube of the outer protective structure according to claim 1, characterized in that: The number of the mounting posts and the mounting holes are the same, the diameters are equal, and the center of each mounting post corresponds to the center of each mounting hole one by one.

3. The Venturi tube of the outer protective structure according to claim 1, characterized in that: The top surface of the base is provided with a plurality of thread grooves, the inner walls of the thread grooves are engraved with internal threads matching with bolts, the number and diameter of the internal threads are the same as those of the positioning holes, and the center of each thread groove corresponds one-to-one to the center of each positioning hole.

4. The Venturi tube of the outer protective structure according to claim 1, characterized in that: The bottom of the protective plate is fixedly connected to a limiting block, and a limiting groove is provided on the top surface of the base. Both the limiting groove and the limiting block are rectangular, and the groove width of the limiting groove is equal to the width of the limiting block.

5. The Venturi tube of the outer protective structure according to claim 1, characterized in that: A clamping block is fixedly connected to the side wall of the buffer strip, and a plurality of clamping grooves are provided on the outer wall surface of the protective plate. Both the clamping grooves and the clamping block are T-shaped, and their sizes are correspondingly equal.

6. The Venturi tube of the outer protective structure according to claim 1, characterized in that: A pair of fixing rods are fixedly connected to the inner wall of the protection plate, and the ends of the fixing rods are fixedly connected to a shock absorbing plate. The shock absorbing plate is arc-shaped, and a layer of protection pad is arranged on the inner surface thereof.

7. The Venturi tube of the outer protective structure according to claim 1, characterized in that: The bottom inner walls of both sides of the waterproof cover are fixedly connected with sliders, and the top side wall of the protective plate is provided with a slide groove. The slide groove and the slider are both rectangular, and the groove width of the slide groove is equal to the thickness of the slider.

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