Integrated Venturi tube

Abstract

The integrated venturi tube comprises a venturi tube body, mounting holes are formed in an inlet and a throat of the venturi tube body, pressure sensors are arranged in the two mounting holes, buffer springs are arranged in the two mounting holes, side opening cavities are formed in the positions, on the left sides of the two mounting holes, of the venturi tube body, and the pressure sensors and the buffer springs are arranged in the side opening cavities. And a side locking component and a side push-down component are arranged in each of the two side open cavities. The pressure sensor has the following advantages and effects that the integrated assembly structure of the pressure sensor in the Venturi tube is improved, the pressure sensor is convenient and rapid to disassemble and assemble, reliability and durability are achieved, and the pressure sensor can be protected more effectively.

Description

Technical Field

[0001] The invention relates to the field of venturi tubes, and in particular to an integrated venturi tube. Background Art

[0002] The venturi tube itself can be equipped with pressure sensors in the following locations:

[0003] 1. Inlet: Install a pressure sensor at the inlet of the Venturi tube to obtain the static pressure of the fluid when it enters the pipeline.

[0004] 2. Throat: A pressure sensor is also installed at the narrowest part (throat) of the Venturi tube to obtain the static pressure of the fluid after passing through the neck.

[0005] By measuring the pressure difference between these two positions (i.e. the difference between the inlet pressure and the throat pressure), the Bernoulli principle can be used to calculate the flow rate of the fluid. The specific flow rate calculation formula is:

[0006]

[0007] Where Q is the flow rate, A is the cross-sectional area of ​​the pipe, v is the flow velocity, P1 and P2 are the pressures at the inlet and throat, and ρ is the fluid density.

[0008] Although the method of fixing the integrated pressure sensor inside the Venturi tube with bolts is a common fixing method, it has some defects and limitations in some aspects, as follows: 1. When maintaining or replacing the pressure sensor, tools are required to remove the bolts, which takes a long time, especially in some compact or difficult-to-reach spaces, which may lead to low maintenance efficiency. 2. Repeated disassembly and installation may cause the bolts to loosen, making it impossible to ensure stability; at the same time, there are hidden dangers of wear and damage on the bolt head. 3. The bolt head is exposed for a long time and is prone to rust. 4. The tightening of the bolts depends on manual operation. If it is over-tightened, it will cause damage or destruction to the pressure sensor.

[0009] Therefore, it is necessary to improve the integrated assembly structure of the pressure sensor in the venturi tube. Summary of the invention

[0010] The object of the present invention is to provide an integrated venturi tube to solve the problems mentioned in the background technology.

[0011] The above technical objectives of the present invention are achieved through the following technical solutions:

[0012] An integrated venturi tube includes a venturi tube body, wherein mounting holes are provided at the inlet and throat of the venturi tube body, pressure sensors are provided in the two mounting holes, and the bottoms of the two mounting holes are narrowed to allow only the detection ports of the two pressure sensors to pass through;

[0013] A buffer spring is disposed in each of the two mounting holes, and the buffer spring can prevent a hard collision from occurring when the pressure sensor is placed in the corresponding mounting hole;

[0014] The Venturi tube body is provided with side openings on the left sides of the two mounting holes, and the two side openings are provided with side locking components and side push-down components; the side locking components can lock the pressure sensor placed in the corresponding mounting holes;

[0015] When the side locking member locks the pressure sensor placed in the corresponding mounting hole, the side push-down member can push the side locking member to move vertically downward, thereby driving the pressure sensor to move downward, so that the detection port of the pressure sensor can pass through the bottom of the corresponding mounting hole to contact the fluid in the venturi tube body;

[0016] When the side locking component releases the locking of the pressure sensor, the buffer spring can also quickly push out the pressure sensor.

[0017] Further configuration is: the side locking member includes a sub-inner shell, the right end of the sub-inner shell is open, a locking push-in block is movably arranged in the sub-inner shell, a locking inner groove is arranged on the left side of the pressure sensor, and the locking push-in block can be pushed into the locking inner groove to lock the pressure sensor; the side locking member is provided with a first power source and a second power source, the first power source provides the locking push-in block with power to always move toward the mounting hole side, and the power of the second power source is applied from the outside so that the locking push-in block can be hidden in the sub-inner shell;

[0018] The side push-down component includes a mother inner shell, and the child inner shell is limited in the mother inner shell and can move vertically; the side push-down component is provided with a third power source and a fourth power source, and the third power source provides the power for the child inner shell to always move upward; the power of the fourth power source is applied by the outside, so that the child inner shell can drive the pressure sensor to move downward together.

[0019] Further configuration is that: the power of the second power source and the fourth power source is air introduced from the outside;

[0020] It also includes an automatic air storage component. The air introduced into the fourth power source will first pass through the automatic air storage component. The automatic air storage structure is configured as a one-way ventilation structure to avoid leakage of air introduced into the fourth power source.

[0021] The side locking member is further configured as follows: the side locking member further comprises an inner moving block located in the sub-inner shell, the inner moving block is located on the left side of the locking push-in block, and the two are fixed in an integrated manner through two sections of transverse arms; the two transverse arms are respectively attached to the upper and lower walls of the sub-inner shell, a closed internal chamber is formed between the inner moving block, the locking push-in block and the two sections of transverse arms, an internal fixing section fixed to the sub-inner shell is arranged in the internal chamber, and the inner moving block and the locking push-in block are respectively located on the left and right sides of the internal fixing section;

[0022] The first power source is a first spring arranged between the inner fixed section and the locking push-in block; a stopper is fixedly arranged at the left end of the inner fixed section, and the stopper can abut against the inner moving block to limit the locking push-in block.

[0023] A further configuration is that the upper and lower sides of the right end of the locking push-in block are both provided with inclined adjustment slopes.

[0024] Further configuration is as follows: an inner cavity is separated between the inner fixed section and the inner moving block, a first inner hole is opened in the lower one of the two sections of the two lateral arms, a second inner hole is opened in the sub-inner shell, and the inner cavity, the first inner hole and the second inner hole are in common; after air is introduced into the second inner hole, the inner moving block and the locking push-in block can be pushed to move to the left together and hidden in the sub-inner shell;

[0025] A second spring is arranged in the inner compartment, and the elastic force of the second spring is smaller than that of the first spring; the second spring is sleeved on the outer periphery of the inner stopper.

[0026] Further configuration is: the upper and lower ends of the female inner shell are respectively fixedly provided with an upper cover and a lower cover, the upper end of the lower cover is fixedly provided with an expansion seat; the upper end of the sub-inner shell is fixedly provided with a fixing block, the upper end of the fixing block is fixedly provided with an upper extension section, the upper cover and the venturi tube body are cooperated to open a through hole for the upper extension section to extend upward, and as the sub-inner shell moves vertically in the female inner shell, the upper extension section is always limited in the through hole;

[0027] The third power source is a third spring arranged between the lower cover and the sub-inner shell, the cross-sectional width of the extension seat is smaller than that of the lower cover, and the third spring is sleeved on the outer periphery of the extension seat.

[0028] Further configuration is: the left ends of the fixed block and the upper cover facing each other are both provided with a half groove, the two half grooves cooperate to form an inner concave cavity, the fixed block is provided with a third inner hole connected to the inner concave cavity, the sub-inner shell is provided with a fourth inner hole, the third inner hole and the fourth inner hole are connected through a hose; the upper left corner of the sub-inner shell is provided with a notch for the hose to move;

[0029] After air is introduced into the fourth inner hole, the fixing block and the sub-inner shell can be pushed to move downward together.

[0030] Further configuration is: an inner filling block is fixedly arranged in the expansion seat and the lower cover, a first through hole and a second through hole are cooperatively opened in the inner filling block and the expansion seat, and the first through hole and the second inner hole, and the second through hole and the fourth inner hole are respectively connected through a hose;

[0031] The surface of the venturi tube body is fixedly provided with two first outer tubes and second outer tubes which vertically extend into the interior of the venturi tube body and are respectively connected with the first inlet hole and the second inlet hole.

[0032] Further configuration is that: the automatic gas storage component comprises an embedded inner shell fixedly arranged in the inner filling block, the embedded inner shell divides the second inlet hole into a first sub-hole and a second sub-hole, and the first sub-hole is connected to the second outer tube;

[0033] The embedded inner shell is provided with a sealing block and a fourth spring, and the sealing block keeps the first sub-hole and the second sub-hole separated by the power of the fourth spring; when the second outer tube delivers air, the sealing block is pushed open so that the first sub-hole and the second sub-hole are connected;

[0034] The expansion block and the lower cover cooperate to open a discharge hole, and the discharge hole is connected to the second sub-hole; the surface of the venturi tube body is fixedly provided with a discharge pipe that vertically extends into the interior of the venturi tube body, and the discharge pipe is connected to the discharge hole. The discharge pipe is provided with an inner plug to seal it.

[0035] The present invention has the following beneficial effects:

[0036] 1. In the present invention, the buffer spring can not only play a buffering role, so that the pressure sensor can be placed in the corresponding mounting hole without a hard collision; it can also play a role in assisting disassembly in the future. When the side locking component releases the lock on the pressure sensor, the buffer spring can also quickly push out the pressure sensor, making it convenient for the user to pull out the pressure sensor. The setting of the side locking component can firmly lock the pressure sensor placed in the mounting hole; the side push-down component can push the side locking component to move downward vertically, thereby driving the pressure sensor to move downward, so that the detection port of the pressure sensor can pass through the bottom of the corresponding mounting hole to contact the fluid in the Venturi tube body; the side push-down component can maintain a quantitative downward movement, and will not cause damage to the pressure sensor. Therefore, the present invention improves the integrated assembly structure of the pressure sensor in the Venturi tube, has the advantages of convenient and quick disassembly and installation of the pressure sensor, has reliability and durability, and can more effectively protect the pressure sensor.

[0037] 2. In the present invention, the locking push-in block can keep moving right under the power of the first power source, and the sub-inner shell can keep moving upward under the power of the third power source; by applying power from the outside, the operations of pushing the locking push-in block to move left to hide in the sub-shell and pushing the sub-inner shell and the pressure sensor to move downward together can be performed.

[0038] 3. In the present invention, the power of the second power source and the fourth power source are both air introduced from the outside, which has the advantages of renewability, environmental protection and economy; the setting of the automatic air storage component can prevent the leakage of air introduced into the fourth power source, allowing the inner shell and the pressure sensor to move downward together, so that the detection port of the pressure sensor can remain through the installation hole and contact with the fluid at the entrance and throat of the Venturi tube body.

[0039] 4. In the present invention, the integration of the inner moving block and the locking push-in block is realized by two sections of lateral arms; the first power source adopts the first spring and is arranged between the inner fixed section and the locking push-in block, and the elastic force of the first spring is used to push the locking push-in block to the right; the stop block can resist the inner moving block to limit the locking push-in block.

[0040] 5. In the present invention, the adjustment slope at the right end of the locking push-in block can effectively compensate for the error, so that the locking push-in block can be smoothly pushed into the locking inner groove.

[0041] 6. In the present invention, the inner compartment is in a variable state that can be expanded or shrunk. The first inner hole and the second inner hole are provided to allow air to flow into the inner compartment. The second spring is provided to play a buffering role.

[0042] 7. In the present invention, the upper extension section is always limited in the perforation. This arrangement not only limits the sub-inner shell to move only in the vertical direction to prevent it from lateral position displacement, but also allows the inner compartment to form a sealed chamber to avoid air leakage in the inner compartment.

[0043] 8. In the present invention, the inner cavity is in a variable state that can be expanded or shrunk. The third inner hole and the fourth inner hole are provided to allow air to flow into the inner cavity. The provision of the accommodating notch provides space for the corresponding hose to move.

[0044] 9. In the present invention, the first outer tube and the second outer tube are arranged so as to be conveniently connected to an external air pump, and the air generated by the air pump can be respectively introduced into the first inlet hole and the second inlet hole to realize the supply of external power.

[0045] 10. In the present invention, the embedded inner shell in the automatic air storage component can separate the second inlet hole into the first sub-hole and the second sub-hole, and the sealing block maintains the partition between the first sub-hole and the second sub-hole under the push of the fourth spring; when the second outer tube delivers air, it will push the sealing block to connect the first sub-hole and the second sub-hole, thereby realizing automatic sealing to prevent air leakage; the exhaust pipe and the inner plug are provided to facilitate users to manually exhaust air. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 It is a structural schematic diagram of an embodiment;

[0047] Figure 2 for Figure 1 Enlarged view of part A in the middle;

[0048] Figure 3 for Figure 2 Enlarged view of middle part B;

[0049] Figure 4 for Figure 2 Enlarged view of part C in the middle.

[0050] In the figure: 11, venturi body; 12, mounting hole; 13, pressure sensor; 131, locking inner groove; 14, buffer spring; 15, side opening; 16, female inner shell; 21, child inner shell; 22, locking top block; 221, adjustment slope; 23, inner moving block; 24, transverse arm; 25, inner fixing section; 26, first spring; 27, stopper; 30, inner compartment; 31, first inner hole; 32, second inner hole; 33, second spring; 41, upper cover; 42, lower cover ; 43. extension seat; 51. fixing block; 521. upper extension section; 522. perforation; 54. third spring; 60. inner concave cavity; 61. third inner hole; 62. fourth inner hole; 63. accommodating gap; 70. inner filling block; 71. first access hole; 721. first sub-hole; 722. second sub-hole; 81. first outer tube; 82. second outer tube; 83. discharge hole; 84. discharge tube; 85. inner plug; 91. embedded in the inner shell; 92. sealing block; 93. fourth spring. DETAILED DESCRIPTION

[0051] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0052] As attached Figures 1 to 4 As shown;

[0053] This embodiment discloses an integrated venturi tube, including a venturi tube body 11, a mounting hole 12 is opened at the entrance and throat of the venturi tube body 11, and pressure sensors 13 are arranged in the two mounting holes 12. The bottoms of the two mounting holes 12 are narrowed to allow only the detection ports of the two pressure sensors 13 to pass through;

[0054] The two mounting holes 12 are each provided with a buffer spring 14, and the buffer spring 14 can prevent a hard collision from occurring when the pressure sensor 13 is placed in the corresponding mounting hole 12;

[0055] The venturi tube body 11 is provided with side openings 15 on the left sides of the two mounting holes 12. The two side openings 15 are provided with side locking members and side push-down members. The side locking members can lock the pressure sensor 13 placed in the corresponding mounting hole 12.

[0056] When the side locking member locks the pressure sensor 13 placed in the corresponding mounting hole 12, the side push-down member can push the side locking member to move vertically downward, thereby driving the pressure sensor 13 to move downward, so that the detection port of the pressure sensor 13 can pass through the bottom of the corresponding mounting hole 12 to contact the fluid in the venturi tube body 11;

[0057] When the side locking member releases the locking of the pressure sensor 13 , the buffer spring 14 can also quickly push out the pressure sensor 13 .

[0058] Among them, the side locking component includes a sub-inner shell 21, the right end of the sub-inner shell 21 is open, a locking push-in block 22 is movably arranged in the sub-inner shell 21, and a locking inner groove 131 is opened on the left side of the pressure sensor 13, and the locking push-in block 22 can be pushed into the locking inner groove 131 to lock the pressure sensor 13; a first power source and a second power source are arranged in the side locking component, the first power source provides the locking push-in block 22 with power to always move toward the side of the mounting hole 12, and the power of the second power source is applied by the outside, so that the locking push-in block 22 can be hidden in the sub-inner shell 21, which is convenient for the pressure sensor 13 to be assembled;

[0059] The side-pushing component includes a mother inner shell 16, and the child inner shell 21 is limited in the mother inner shell 16 and can move vertically; a third power source and a fourth power source are arranged in the side-pushing component, and the third power source provides the power for the child inner shell 21 to always move upward; the power of the fourth power source is applied by the outside, so that the child inner shell 21 can drive the pressure sensor 13 to move downward together.

[0060] The power of the second power source and the fourth power source is air introduced from the outside;

[0061] It also includes an automatic air storage component. The air introduced into the fourth power source will first pass through the automatic air storage component. The automatic air storage structure is configured as a one-way ventilation structure to avoid leakage of air introduced into the fourth power source.

[0062] Among them, the side locking member also includes an inner moving block 23 located in the sub-inner shell 21, the inner moving block 23 is located on the left side of the locking top entry block 22, and the two are fixed in an integrated manner through two sections of horizontal arms 24; a closed internal chamber is formed between the inner moving block 23, the locking top entry block 22 and the two sections of horizontal arms 24, and an internal fixing section 25 fixed to the sub-inner shell 21 is provided in the internal chamber, and the inner moving block 23 and the locking top entry block 22 are respectively located on the left and right sides of the internal fixing section 25;

[0063] The first power source is a first spring 26 disposed between the inner fixed section 25 and the locking push-in block 22 ; a stopper 27 is fixedly disposed at the left end of the inner fixed section 25 , and the stopper 27 can abut against the inner moving block 23 to limit the locking push-in block 22 .

[0064] The upper and lower sides of the right end of the locking push-in block 22 are both provided with inclined adjustment slopes 221 .

[0065] Among them, an inner compartment 30 is separated between the inner fixed section 25 and the inner moving block 23, a first inner hole 31 is opened in the lower one of the two two-section horizontal arms 24, a second inner hole 32 is opened in the sub-inner shell 21, and the inner compartment 30, the first inner hole 31 and the second inner hole 32 are in common; after air is introduced into the second inner hole 32, the inner moving block 23 and the locking push-in block 22 can be pushed to the left together and hidden in the sub-inner shell 21;

[0066] A second spring 33 is disposed in the inner compartment 30 . The elastic force of the second spring 33 is smaller than that of the first spring 26 . The second spring 33 is sleeved on the outer periphery of the inner stopper 27 .

[0067] Among them, the upper and lower ends of the female inner shell 16 are respectively fixedly provided with an upper cover 41 and a lower cover 42, and the upper end of the lower cover 42 is fixedly provided with an expansion seat 43; the upper end of the sub-inner shell 21 is fixedly provided with a fixing block 51, and the upper end of the fixing block 51 is fixedly provided with an upper extension section 521. The upper cover 41 and the venturi tube body 11 are cooperated to open a through hole 522 for the upper extension section 521 to extend upward. As the sub-inner shell 21 moves vertically in the female inner shell 16, the upper extension section 521 is always limited in the through hole 522;

[0068] The third power source is a third spring 54 disposed between the lower cover 42 and the sub-inner shell 21 . The cross-sectional width of the extension seat 43 is smaller than that of the lower cover 42 . The third spring 54 is sleeved on the outer periphery of the extension seat 43 .

[0069] The left ends of the fixed block 51 and the upper cover 41 facing each other are both provided with a half groove, and the two half grooves cooperate to form an inner concave cavity 60, a third inner hole 61 connected to the inner concave cavity 60 is provided in the fixed block 51, a fourth inner hole 62 is provided in the sub-inner shell 21, and the third inner hole 61 and the fourth inner hole 62 are connected through a hose; an upper left corner of the sub-inner shell 21 is provided with a receiving notch 63 for the movement of the hose;

[0070] After air is introduced into the fourth inner hole 62 , the fixing block 51 and the sub-inner shell 21 can be pushed to move downward together.

[0071] Among them, an inner filling block 70 is fixedly arranged in the expansion seat 43 and the lower cover 42, and a first through hole 71 and a second through hole are formed in the inner filling block 70 and the expansion seat 43, and the first through hole 71 and the second inner hole 32, and the second through hole and the fourth inner hole 62 are connected through hoses respectively;

[0072] Two first outer tubes 81 and second outer tubes 82 are fixedly disposed on the surface of the venturi tube body 11 , extending vertically into the interior of the venturi tube body 11 and communicating with the first inlet hole 71 and the second inlet hole respectively.

[0073] The automatic gas storage component includes an embedded inner shell 91 fixedly disposed in the inner filling block 70, and the embedded inner shell 91 divides the second inlet hole into a first sub-hole 721 and a second sub-hole 722, and the first sub-hole 721 is connected to the second outer tube 82;

[0074] A sealing block 92 and a fourth spring 93 are provided in the embedded inner shell 91. The sealing block 92 keeps the first sub-hole 721 and the second sub-hole 722 separated by the power of the fourth spring 93. When the second outer tube 82 delivers air, the sealing block 92 is pushed open to make the first sub-hole 721 and the second sub-hole 722 communicate with each other.

[0075] The expansion block and the lower cover 42 cooperate to open a discharge hole 83, which is connected to the second sub-hole 722; a discharge pipe 84 is fixedly provided on the surface of the venturi tube body 11 and extends vertically into the interior of the venturi tube body 11, and the discharge pipe 84 is connected to the discharge hole 83. An inner plug 85 is provided on the discharge pipe 84 to seal it.

[0076] The initial state of each component in this embodiment is:

[0077] 1. The locking push-in block 22 in the side locking member will always keep moving rightward under the power of the first spring 26, and the stopper 27 can abut against the inner moving block 23 to limit the locking push-in block 22 from excessively moving rightward and escaping from the inner shell 21.

[0078] 2. The sub-inner housing 21 in the side push-down member will always keep moving upward under the power of the third spring 54, so as to facilitate the subsequent locking and pushing block 22 to move rightward and push into the locking inner groove 131 of the pressure sensor 13;

[0079] 3. The sealing block 92 in the automatic gas storage component will maintain the separation between the first sub-hole 721 and the second sub-hole 722 under the power of the fourth spring 93.

[0080] When assembling the pressure sensor 13:

[0081] 1. Pull out the air pipe on the air pump and insert it into the first outer tube 81. The air will pass through the first outer tube 81, the first inlet hole 71, the second inner hole 32 and the first inner hole 31 into the inner cavity 30. After the air fills the inner cavity 30, it will expand the inner cavity 30, thereby pushing the inner moving block 23 and the locking top block 22 to move to the left together and hide in the sub-inner shell 21, so as to avoid hindering the pressure sensor 13 from being placed in the mounting hole 12.

[0082] 2. Place the pressure sensor 13 into the mounting hole 12. The pressure sensor 13 will contact the buffer spring 14 and no hard collision will occur.

[0083] 3. After the pressure sensor 13 is placed into the mounting hole 12, the locking push-in block 22 will be aligned with the locking inner groove 131; when the air pipe is pulled out, the locking push-in block 22 will move rightward under the power of the first spring 26 and extend into the locking inner groove 131, thereby completing the locking of the pressure sensor 13.

[0084] 4. Next, insert the air pipe into the second outer tube 82, let the air flow into the first sub-hole 721, then push open the sealing block 92 to make the first sub-hole 721 communicate with the second sub-hole 722, and then let the air flow into the inner cavity 60 through the second sub-hole 722, the fourth inner hole 62 and the third inner hole 61; after the air fills the inner cavity 60, it expands the inner cavity 60, and then pushes the fixing block 51 and the sub-inner shell 21 to move downward together, and the pressure sensor 13 moves downward accordingly, so that the detection port of the pressure sensor 13 can just pass through the bottom of the corresponding mounting hole 12 to contact the fluid in the venturi tube body 11.

[0085] 5. Pull out the air pipe. The sealing block 92 keeps the first sub-hole 721 and the second sub-hole 722 separated by the power of the fourth spring 93. The air in the inner cavity 60 will not leak. The pressure sensor 13 keeps the above state.

[0086] When removing the pressure sensor 13:

[0087] 1. Pull out the air pipe on the air pump and insert it into the first outer tube 81 to push the inner moving block 23 and the locking push-in block 22 to move left together and hide in the sub-inner shell 21, and the locking push-in block 22 is separated from the locking inner groove 131; the pressure sensor 13 moves upward under the power of the buffer spring 14 to facilitate the user to pull out the pressure sensor 13.

[0088] 2. Pull out the inner plug 85 to exhaust the air in the inner cavity 60; the sub-inner shell 21 will move up to abut against the upper cover 41 under the power of the third spring 54, so that when the pressure sensor 13 is installed later, the locking push-in block 22 can be aligned with the locking inner groove 131.

[0089] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. An integrated venturi tube, comprising a venturi tube body (11), characterized in that: The inlet and throat of the venturi tube body (11) are both provided with mounting holes (12), and pressure sensors (13) are both arranged in the two mounting holes (12). The bottoms of the two mounting holes (12) are narrowed so as to allow only the detection ports of the two pressure sensors (13) to pass through. A buffer spring (14) is disposed in each of the two mounting holes (12), and the buffer spring (14) can prevent a hard collision from occurring when the pressure sensor (13) is placed in the corresponding mounting hole (12); The venturi tube body (11) is provided with a side opening cavity (15) on the left side of the two mounting holes (12), and the two side opening cavities (15) are provided with a side locking member and a side push-down member; the side locking member can lock the pressure sensor (13) placed in the corresponding mounting hole (12); When the side locking member locks the pressure sensor (13) placed in the corresponding mounting hole (12), the side push-down member can push the side locking member to move vertically downward, thereby driving the pressure sensor (13) to move downward, so that the detection port of the pressure sensor (13) can pass through the bottom of the corresponding mounting hole (12) to contact the fluid in the venturi tube body (11); When the side locking component releases the locking of the pressure sensor (13), the buffer spring (14) can also quickly push out the pressure sensor (13).

2. An integrated venturi tube according to claim 1, characterized in that: The side locking component comprises a sub-inner shell (21), the right end of the sub-inner shell (21) is open, a locking push-in block (22) is movably arranged in the sub-inner shell (21), a locking inner groove (131) is arranged on the left side of the pressure sensor (13), and the locking push-in block (22) can be pushed into the locking inner groove (131) to lock the pressure sensor (13); a first power source and a second power source are arranged in the side locking component, the first power source provides the locking push-in block (22) with power to always move toward the side of the mounting hole (12), and the power of the second power source is applied from the outside so that the locking push-in block (22) can be hidden in the sub-inner shell (21); The side push-down component includes a mother inner shell (16), and the child inner shell (21) is limited in the mother inner shell (16) and can move vertically; a third power source and a fourth power source are arranged in the side push-down component, and the third power source provides the child inner shell (21) with power to always move upward; the power of the fourth power source is applied from the outside, so that the child inner shell (21) can drive the pressure sensor (13) to move downward together.

3. An integrated venturi tube according to claim 2, characterized in that: The power of the second power source and the fourth power source is air introduced from the outside; It also includes an automatic air storage component. The air introduced into the fourth power source will first pass through the automatic air storage component. The automatic air storage structure is configured as a one-way ventilation structure to avoid leakage of air introduced into the fourth power source.

4. The integrated venturi tube according to claim 3, characterized in that: The side locking component also includes an inner moving block (23) located in the sub-inner shell (21), the inner moving block (23) is located on the left side of the locking push-in block (22), and the two are fixed in an integrated manner through two sections of transverse arms (24); a closed internal chamber is formed between the inner moving block (23), the locking push-in block (22) and the two sections of transverse arms (24), and an internal fixing section (25) fixed to the sub-inner shell (21) is arranged in the internal chamber, and the inner moving block (23) and the locking push-in block (22) are respectively located on the left and right sides of the internal fixing section (25); The first power source is a first spring (26) arranged between the inner fixed section (25) and the locking push-in block (22); a stopper (27) is fixedly arranged at the left end of the inner fixed section (25), and the stopper (27) can abut against the inner moving block (23) to limit the locking push-in block (22).

5. The integrated venturi tube according to claim 4, characterized in that: The upper and lower sides of the right end of the locking push-in block (22) are both provided with inclined adjustment slopes (221).

6. The integrated venturi tube according to claim 4, characterized in that: An inner cavity (30) is separated between the inner fixed section (25) and the inner moving block (23); a first inner hole (31) is provided in the lower lateral arm (24) of the two lateral arms (24); a second inner hole (32) is provided in the sub-inner shell (21); the inner cavity (30), the first inner hole (31) and the second inner hole (32) are in common; after air is introduced into the second inner hole (32), the inner moving block (23) and the locking push-in block (22) can be pushed to move to the left together and be hidden in the sub-inner shell (21); A second spring (33) is arranged in the inner compartment (30), and the elastic force of the second spring (33) is smaller than that of the first spring (26); the second spring (33) is sleeved on the outer periphery of the inner stopper (27).

7. The integrated venturi tube according to claim 6, characterized in that: The upper and lower ends of the female inner shell (16) are respectively fixedly provided with an upper cover (41) and a lower cover (42), and the upper end of the lower cover (42) is fixedly provided with an expansion seat (43); the upper end of the sub-inner shell (21) is fixedly provided with a fixing block (51), and the upper end of the fixing block (51) is fixedly provided with an upper extension section (521); the upper cover (41) and the venturi tube body (11) are matched to form a through hole (522) for the upper extension section (521) to extend upward, and as the sub-inner shell (21) moves vertically in the female inner shell (16), the upper extension section (521) is always limited in the through hole (522); The third power source is a third spring (54) arranged between the lower cover (42) and the sub-inner shell (21); the cross-sectional width of the extension seat (43) is smaller than that of the lower cover (42); and the third spring (54) is sleeved on the outer periphery of the extension seat (43).

8. The integrated venturi tube according to claim 7, characterized in that: The fixed block (51) and the upper cover (41) are both provided with a half groove at their left ends facing each other, and the two half grooves cooperate to form an inner cavity (60); a third inner hole (61) communicating with the inner cavity (60) is provided in the fixed block (51); a fourth inner hole (62) is provided in the sub-inner shell (21); the third inner hole (61) and the fourth inner hole (62) are communicated with each other through a hose; and a notch (63) for accommodating the hose is provided at the upper left corner of the sub-inner shell (21); After air is introduced into the fourth inner hole (62), the fixing block (51) and the sub-inner shell (21) can be pushed downward together.

9. The integrated venturi tube according to claim 8, characterized in that: An inner filling block (70) is fixedly arranged in the expansion seat (43) and the lower cover (42); a first access hole (71) and a second access hole are cooperatively provided in the inner filling block (70) and the expansion seat (43); the first access hole (71) and the second inner hole (32), and the second access hole and the fourth inner hole (62) are respectively connected through a hose; The surface of the Venturi tube body (11) is fixedly provided with two first outer tubes (81) and second outer tubes (82) which extend vertically into the interior of the Venturi tube body (11) and are respectively connected to the first inlet hole (71) and the second inlet hole.

10. An integrated venturi tube according to claim 9, characterized in that: The automatic gas storage component comprises an embedded inner shell (91) fixedly arranged in the inner filling block (70), wherein the embedded inner shell (91) divides the second inlet hole into a first sub-hole (721) and a second sub-hole (722), and the first sub-hole (721) is connected to the second outer tube (82); The embedded inner shell (91) is provided with a sealing block (92) and a fourth spring (93). The sealing block (92) maintains the separation between the first sub-hole (721) and the second sub-hole (722) under the power of the fourth spring (93); when the second outer tube (82) delivers air, the sealing block (92) is pushed open so that the first sub-hole (721) and the second sub-hole (722) are connected; The expansion seat (43) and the lower cover (42) are matched to form a discharge hole (83), and the discharge hole (83) is connected to the second sub-hole (722); the surface of the venturi tube body (11) is fixedly provided with a discharge pipe (84) extending vertically into the interior of the venturi tube body (11), and the discharge pipe (84) is connected to the discharge hole (83), and the discharge pipe (84) is provided with an inner plug (85) for sealing it.

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