CN211042341U

CN211042341U - Saddle inserted type taper pipe flowmeter

Info

Publication number: CN211042341U
Application number: CN201922234424.5U
Authority: CN
Inventors: 郑云飞; 朱萍萍
Original assignee: Anwei Electromechanical Equipment Manufacturing Shanghai Co ltd
Current assignee: Anwei Electromechanical Equipment Manufacturing Shanghai Co ltd
Priority date: 2019-12-12
Filing date: 2019-12-12
Publication date: 2020-07-17
Anticipated expiration: 2029-12-12

Abstract

The utility model relates to a saddle insertion type taper pipe flowmeter, which comprises an extension cylinder, a flange plate group, a low-pressure leading pipe and a cone, wherein a flow opening is arranged on a pipeline, and the extension cylinder is fixedly connected with the flow opening; the low-pressure guide pipe is fixedly connected with the cone; the cone is coaxially arranged with the pipeline; a water flowing channel is formed in the cone; the flange disc group is arranged at the upper part of the extension cylinder and comprises an upper flange disc, a lower flange disc and a rubber gasket; a screw and a nut are matched among the upper flange plate, the rubber gasket and the lower flange plate; and the upper surface of the upper flange plate is provided with a high-pressure leading port and a low-pressure leading port. The utility model is suitable for a pipeline of different pipe diameters just has ann and tears convenient characteristics open.

Description

Saddle inserted type taper pipe flowmeter

Technical Field

The utility model belongs to the technical field of differential pressure flowmeter's technique and specifically relates to a bayonet taper pipe flowmeter of saddle is related to.

Background

The cone-tube flowmeter is characterized by that it has a rectifying and throttling cone structure and is suspended in the installation position of centre of measuring cylinder body, the fluid can be flowed from high-pressure-leading hole to cone direction, when the fluid is close to low-pressure-leading tube, its pressure is PH, when the fluid is passed through the throttling region of cone body, the flow area is gradually reduced, the fluid can be gradually accelerated, after passed through the cone body, a low-pressure zone can be formed at downstream of cone body, its pressure is P L, PH and P L are respectively connected to differential pressure transmitter by means of high-pressure-leading hole and low-pressure-leading hole, and when the flow rate is changed, the differential pressure between two pressure-taking holes of flowmeter can be respectively increased or reduced.

The saddle-inserted type cone flowmeter is one kind of cone flowmeter and is suitable for measuring the flow rate of pipeline in site and without enough installation space.

At present, a sensor of a V-cone flowmeter, which is disclosed in chinese utility model patent with publication number CN202188867U, includes a cone, a low-pressure-leading pipe, an extension cylinder, a pressure-leading component and a fixed pressure cap, wherein an opening is formed on the pipe wall of a pipeline, and the extension cylinder is welded at the opening; the cross section of the pressure guide component is in a T-shaped cylinder shape, and the left and the right of the cylinder of the pressure guide component are respectively provided with a high-pressure guide port and a low-pressure guide port; one end of the cone is welded with the low-pressure guiding pipe, the lower end of the low-pressure guiding opening is welded with the upper end of the low-pressure guiding pipe, and the three are communicated; the fixed pressing cap is provided with internal threads and is in threaded connection with the extension barrel.

Foretell utility model ann tears the convenience open, operating personnel is manual or borrow instruments such as spanner soon twist soon fixed pressing behind the cap alright realize tearing open the operation to flowmeter's ann promptly to make flowmeter's washing and maintenance become simple and easy.

In actual use, sundries such as plastic bags, weeds, hairs and the like are often found in the sewage pipeline, and the sundries are easily hung on the low-pressure-leading pipe of the flowmeter to cause the blockage of a high-pressure area, so that the corresponding high-pressure-taking value is higher, and the accuracy of a measurement result is influenced, therefore, an operator needs to open the fixed pressure cap irregularly, take out the flowmeter and clean the sundries on the low-pressure-leading pipe; the sewage pipelines have different pipe diameters from dozens of centimeters to several meters; when the flowmeter is used in a pipeline with a small pipe diameter, the fixed pressing cap is small, and an operator can screw the fixed pressing cap manually or by using tools such as a spanner; when the flowmeter is used in the pipeline with the larger pipe diameter, the fixed pressure cap is larger, the friction resistance between the fixed pressure cap and the extension cylinder is correspondingly increased, the strength required by the rotary fixed pressure cap exceeds the range operated by an operator manually or by a wrench, at this time, the operator needs to take a hammer and a chisel to knock the edge of the fixed pressure cap once to rotate the fixed pressure cap, and the operator needs to perform such operation steps irregularly, so that the operation of installing and detaching the flowmeter is time-consuming and labor-consuming.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a bayonet taper pipe flowmeter of saddle, its pipeline that is applicable to different pipe diameters just has ann and tears convenient characteristics open to exist not enough to prior art.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme: a saddle insertion type taper pipe flowmeter comprises an extension cylinder, a low-pressure guiding pipe and a cone, wherein a flow opening is formed in a pipeline, and the bottom end of the extension cylinder is fixedly connected with the flow opening correspondingly; one end of the low-pressure guiding pipe is arranged into a 90-degree bent pipe; the cone is coaxially arranged with the pipeline, the cone comprises a front cone and a rear cone, one end of the front cone is a small end, and the other end of the front cone is a large end; one end of the rear cone is equal to the outer diameter of the large head end of the front cone and is correspondingly fixedly connected with the large head end of the front cone, and the section of the other end of the rear cone is smaller than that of the fixedly connected end; the slope length of the front cone is longer than that of the rear cone, and the slope of the front cone is smaller than that of the rear cone; the small end of the front cone is fixedly connected with the 90-degree bent pipe of the low-pressure guiding pipe correspondingly; a water flowing channel penetrating through the cone is formed in the cone along the axial direction of the cone; a flange disc group is arranged at the upper part of the extension cylinder and comprises an upper flange disc, a lower flange disc and a rubber gasket; the lower flange plate is provided with an opening matched with the extension cylinder and fixedly connected to the top end of the extension cylinder; the rubber gasket is arranged on the upper part of the lower flange plate; the upper flange plate is arranged at the upper part of the rubber gasket; a screw and a nut are matched among the upper flange plate, the rubber gasket and the lower flange plate; the upper surface of the upper flange plate is provided with a high-pressure leading port and a low-pressure leading port, and the high-pressure leading port and the low-pressure leading port penetrate through the upper flange plate; the low-pressure guiding pipe is vertically and fixedly connected to the lower surface of the upper flange plate corresponding to the low-pressure guiding port.

By adopting the technical scheme, when the flowmeter is used on a pipeline with a larger pipe diameter, the nut is directly screwed, the flowmeter can be taken out and cleaned by disassembling the upper flange plate, and the process of taking off the fixed pressing cap is time-saving and labor-saving compared with the process of taking off the fixed pressing cap; and the flowmeter is suitable for pipelines with different pipe diameters, and is also convenient to install.

The present invention may be further configured in a preferred embodiment as: the high-pressure leading port and the low-pressure leading port are respectively matched with a high-pressure leading cylinder and a low-pressure leading cylinder, the high-pressure leading cylinder is provided with external threads, the top end of the high-pressure leading cylinder is matched with a high-pressure leading cylinder protective cap, and the bottom end of the high-pressure leading cylinder protective cap is vertically and fixedly connected to the upper surface of the upper flange plate corresponding to the high-pressure leading port; the low-pressure leading cylinder is provided with external threads, the top end of the low-pressure leading cylinder is matched with a low-pressure leading cylinder protective cap, and the bottom end of the low-pressure leading cylinder is vertically and fixedly connected to the upper surface of the upper flange plate corresponding to the low-pressure leading port.

By adopting the technical scheme, the two pressure leading pipes communicated to the differential pressure transmitter are respectively butted on the high-pressure leading barrel and the low-pressure leading barrel, compared with the mode that the two pressure leading pipes are directly butted on the high-pressure leading port and the low-pressure leading port, the connecting and fixing area of the two pressure leading pipes and the flowmeter is increased, and the connecting stability at the interface is improved; the protective cap is arranged to protect the high-pressure guide cylinder and the low-pressure guide cylinder.

The present invention may be further configured in a preferred embodiment as: the upper surface of the upper flange plate is provided with a groove, the groove penetrates through the upper flange plate, the upper opening of the groove is larger than the lower opening, the inner wall of the groove is provided with a clamping groove, a rubber gasket adaptive to the groove is arranged in the groove, and a cover plate adaptive to the groove is arranged on the rubber gasket; the high-pressure guiding port and the low-pressure guiding port are respectively formed in the upper surface of the cover plate, the high-pressure guiding cylinder and the low-pressure guiding cylinder are respectively and vertically and fixedly connected to the upper surface of the cover plate corresponding to the high-pressure guiding port and the low-pressure guiding port, and the low-pressure guiding pipe is vertically and fixedly connected to the lower surface of the cover plate corresponding to the low-pressure guiding port; the cover plate is provided with a fixing groove, a clamping device matched with the fixing groove is fixed in the fixing groove, and the output end of the clamping device is matched and clamped with the clamping groove.

By adopting the technical scheme, when the flowmeter needs to be cleaned, the flowmeter can be cleaned only by detaching the cover plate; when the pipeline needs to be cleaned, the upper flange plate and the cover plate can be detached together; different operation modes are adopted according to the two conditions, so that the working efficiency of operators is improved.

The present invention may be further configured in a preferred embodiment as: the clamping device comprises a box body, an upper pulley, an upper rotating shaft, a force transmission plate, a button, a lower rotating shaft, a lower pulley, a fixing plate, a clamping plate and an ejection assembly; the box body comprises an upper cover and a box body, and the upper cover is assembled and fixedly connected with the box body; the first upper pulleys are two and parallel to each other, and the two upper pulleys are arranged above the interior of the box body; the upper rotating shaft is rotatably supported on the two upper pulleys; the force transmission plate is vertically arranged, the bottom end of the force transmission plate is vertically and fixedly connected with the upper rotating shaft, and the top end of the force transmission plate penetrates out of the upper cover; the button is vertically and fixedly connected to the top end of the force transmission plate; the number of the lower pulleys is two, and the two lower pulleys are correspondingly arranged at the lower right parts of the two upper pulleys and are in sliding contact with the upper pulleys; the lower rotating shaft is rotatably supported on the two lower pulleys; the fixed plate is vertically arranged, the top end of the fixed plate is fixedly connected with the lower rotating shaft, and the bottom end of the fixed plate is suspended; one end of the clamping plate is vertically and fixedly connected with the fixed plate, and the other end of the clamping plate is inserted into the clamping groove; the ejection assembly is arranged on one side, away from the clamping plate, of the fixed plate and fixedly connected with the box body.

Through adopting above-mentioned technical scheme, press or loosen the button and can realize the dismantlement and the fixed of apron, clamping device constitutes simply, the good reliability.

The present invention may be further configured in a preferred embodiment as: the ejection assembly comprises a guide rod and a pressure spring; one end of the clamping and connecting plate fixedly connected with the fixed plate is provided with a guide channel along the axis direction of the clamping and connecting plate, one end of the guide rod is vertically and fixedly connected to the inner wall of the box body, and the other end of the guide rod penetrates through the guide channel; the compression spring is sleeved on the guide rod, one end of the compression spring is fixedly connected with the box body, and the other end of the compression spring is fixedly connected with the fixed plate; when the button is not pressed, a gap exists between the button and the box body; when the button is pressed down and is made to contact the upper cover, the distance of the clamping plate moving towards the box body is equal to the distance of the clamping plate moving out of the clamping groove.

By adopting the technical scheme, the ejection assembly is simple in structure and good in reliability.

The present invention may be further configured in a preferred embodiment as: the cover plate is provided with a perspective piece for observing the interior of the pipeline.

By adopting the technical scheme, an operator can visually see the condition inside the pipeline, and the operator can conveniently judge whether the flowmeter needs to be cleaned.

The present invention may be further configured in a preferred embodiment as: the perspective piece is a toughened glass plate.

By adopting the technical scheme, the tempered glass plate is high in strength and high in transparency.

The present invention may be further configured in a preferred embodiment as: the cover plate is provided with a holding piece used for moving the cover plate.

Through adopting above-mentioned technical scheme, can make things convenient for operating personnel to remove the apron.

The present invention may be further configured in a preferred embodiment as: the holding piece is an open steel ring.

Through adopting above-mentioned technical scheme, opening steel ring intensity is high, and the good reliability.

To sum up, the utility model discloses a following at least one useful technological effect:

1. compared with the prior art, when the utility model is used on a pipeline with a larger pipe diameter, the flowmeter can be taken out and cleaned by directly screwing the nut and disassembling the upper flange plate, and the taking-off process is time-saving and labor-saving compared with the taking-off process of the fixed pressing cap; the utility model is suitable for pipelines with different pipe diameters and has the characteristic of convenient installation and disassembly;

2. the utility model is provided with the groove, the clamping groove, the cover plate and the clamping device, and only the cover plate needs to be detached when the flow meter needs to be cleaned; when the pipeline needs to be cleaned, the upper flange plate and the cover plate can be detached together; aiming at different conditions, different operation modes are adopted, so that the working efficiency of operators is improved;

3. the utility model discloses a set up perspective piece, the condition of flowmeter in the pipeline can the direct observation to operating personnel, makes things convenient for operating personnel to judge whether need dismantle the flowmeter.

Drawings

FIG. 1 is a cross-sectional view of a flow meter according to one embodiment;

FIG. 2 is a cross-sectional view of the flowmeter of the second embodiment;

FIG. 3 is an exploded view of a part of the structure of the second embodiment;

FIG. 4 is a cross-sectional view of the clamping device;

FIG. 5 is a schematic view of the latch section assembly.

In the figure, 1, a pipeline; 2. an extension cylinder; 3. a flange plate group; 30. an upper flange plate; 300. a clamping groove; 31. a lower flange plate; 32. a rubber gasket; 33. a screw; 34. a nut; 35. a rubber gasket; 4. a high pressure-inducing cylinder; 40. a high-pressure-inducing cylinder protective cap; 5. a low pressure barrel; 50. a low-pressure-leading cylinder protective cap; 6. a low-pressure guiding pipe; 7. a cone; 8. a cover plate; 80. fixing grooves; 81. a see-through; 82. a grip; 9. a clamping device; 90. a box body; 91. an upper pulley; 92. an upper rotating shaft; 93. a force transmission plate; 94. a button; 95. a lower rotating shaft; 96. a lower pulley; 97. a fixing plate; 98. a clamping and connecting plate; 99. ejecting the assembly; 990. a guide rod; 991. and (5) pressing a spring.

Detailed Description

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

Example one

Referring to fig. 1, the utility model discloses a saddle insertion type taper pipe flowmeter, which comprises an extension cylinder 2, a flange plate group 3, a high-pressure-leading cylinder 4, a low-pressure-leading cylinder 5, a low-pressure-leading pipe 6 and a cone 7; a circulation port is formed in the pipeline 1, the extension cylinder 2 is of a hollow cylinder structure with openings at two ends, and the bottom end of the extension cylinder is fixedly connected with the circulation port correspondingly; the flange plate group 3 is positioned at the upper part of the extension cylinder 2, and the flange plate group 3 comprises an upper flange plate 30, a lower flange plate 31, a rubber gasket 32, a screw 33 and a nut 34; the middle part of the lower flange plate 31 is provided with an opening and is fixedly connected with the top end of the extension cylinder 2, and the opening is matched with the extension cylinder 2; the rubber gasket 32 is arranged on the upper part of the lower flange plate 31; the upper flange 30 is arranged on the upper part of the rubber gasket 32; the upper flange 30, the rubber gasket 32 and the lower flange 31 are fixed through a screw 33 and a nut 34; a high-pressure leading port is formed in the upper surface of the upper flange 30 and penetrates through the upper flange 30; the high-pressure guide cylinder 4 is of a hollow cylinder structure with openings at two ends, the high-pressure guide cylinder 4 is provided with external threads, the top end of the high-pressure guide cylinder 4 is matched with a high-pressure guide cylinder protective cap 40, and the bottom end of the high-pressure guide cylinder 4 is vertically and fixedly connected to the upper surface of the upper flange 30 corresponding to the high-pressure guide port; a low-pressure leading port is formed in the upper surface of the upper flange 30 and penetrates through the upper flange 30; the low-pressure guide cylinder 5 is a hollow cylinder structure with openings at two ends, the low-pressure guide cylinder 5 is provided with external threads, the top end of the low-pressure guide cylinder 5 is matched with a low-pressure guide cylinder protective cap 50, and the bottom end of the low-pressure guide cylinder 5 is vertically and fixedly connected to the upper surface of the upper flange 30 corresponding to the low-pressure guide opening; one end of the low-pressure guiding pipe 6 is vertically and fixedly connected with the lower surface of the upper flange plate 30 corresponding to the low-pressure guiding port, the other end of the low-pressure guiding pipe is arranged into a 90-degree bent pipe, and the opening end of the 90-degree bent pipe faces to one side departing from the high-pressure guiding port; the cone 7 is coaxially arranged with the pipeline 1, the cone 7 comprises a front cone and a rear cone, one end of the front cone is a small end, and the other end of the front cone is a big end; one end of the rear cone is equal to the outer diameter of the large head end of the front cone and is correspondingly fixedly connected with the large head end of the front cone, and the section of the other end of the rear cone is smaller than that of the fixedly connected end; the slope length of the front cone is longer than that of the rear cone, and the slope of the front cone is smaller than that of the rear cone; the small end of the front cone is correspondingly and fixedly connected with a 90-degree bent pipe of the low-pressure guiding pipe; a water flowing channel penetrating through the cone 7 is arranged on the cone 7 along the axial direction of the cone 7.

The implementation principle of the embodiment is as follows: opening an opening on the pipeline 1, welding an opening corresponding to the extension cylinder 2 on the pipeline 1, placing a rubber gasket 32, placing the cone 7 into the pipeline 1 through the extension cylinder 2, adjusting the direction of the cone 7 to enable the axial direction of the cone 7 to be coincident with the axial direction of the cylinder body, placing a screw 33, and screwing a nut 34 in a matching manner; in a non-use state, the high-pressure-drawing cylinder protective cap 40 and the low-pressure-drawing cylinder protective cap 50 are respectively covered on the high-pressure-drawing cylinder 4 and the low-pressure-drawing cylinder 5.

Compared with the prior art, the utility model discloses a flange joint when being used in the great pipeline of pipe diameter, flange joint only needs a plurality of screw rods 33 of elasticity and nut 34 can realize the fixed of flowmeter and demolish, and operating personnel is comparatively labour saving and time saving in operation process.

Example two

In the first embodiment, according to the working requirements, the operator needs to irregularly clean the sundries hung on the low-pressure-leading pipe and periodically clean the sundries in the sewage pipeline around the flowmeter, and in both cases, the operator needs to pay the same physical labor to separate or fix the upper flange 30 and the lower flange 31, which results in lower working efficiency.

Referring to fig. 2 and 3, the present embodiment differs from the first embodiment in that: the embodiment is further provided with a cover plate 8, a rubber gasket 35 and a clamping device 9; a groove is formed in the upper surface of the upper flange 30, penetrates through the upper flange 30, and is larger than the lower opening; the inner wall of the groove is provided with a clamping groove 300; the rubber gasket 35 is matched with the groove and is arranged in the groove; the cover plate 8 is matched with the groove and is arranged on the upper part of the rubber gasket 35; (ii) a Two fixing grooves 80 are formed in the upper surface of the cover plate 8; a through hole is arranged on the upper surface of the cover plate 8 close to the low-pressure leading port; a perspective piece 81 is arranged in the through hole, and the perspective piece 81 is a toughened glass plate; two holding pieces 82 are fixedly connected to the positions, close to the fixing grooves 80, of the cover plate 8 respectively, and the holding pieces 82 are open steel rings; the high-pressure guiding port and the low-pressure guiding port are respectively arranged on the upper surface of the cover plate 8, the high-pressure guiding cylinder 4 and the low-pressure guiding cylinder 5 are respectively and vertically and fixedly connected to the upper surface of the cover plate 8 corresponding to the high-pressure guiding port and the low-pressure guiding port, and the low-pressure guiding pipe 6 is vertically and fixedly connected to the lower surface of the cover plate 8 corresponding to the low-pressure guiding port; the latch device 9 is adapted to the fixing groove 80 and disposed in the fixing groove 80, and the latch device 9 is latched to the latch groove 300 through the fixing groove 80.

Referring to fig. 4, the clamping device 9 includes a box 90, an upper pulley 91, an upper rotating shaft 92, a force transmission plate 93, a button 94, a lower rotating shaft 95, a lower pulley 96, a fixing plate 97, a clamping plate 98 and an ejection assembly 99; the box body 90 is matched with the fixing groove 80, and the box body 90 comprises an upper cover and a box body; the two upper pulleys 91 are arranged in total, and the two upper pulleys 91 are parallel to each other and are arranged above the interior of the box body 90; the two upper pulleys 91 are rotatably connected to the upper rotating shaft 92; the force transmission plate 93 is vertically arranged, the bottom end of the force transmission plate is vertically and fixedly connected with the upper rotating shaft 92, and the top end of the force transmission plate penetrates through the upper cover of the box body 90; the button 94 is arranged on the upper part of the force transmission plate 93 and is vertically and fixedly connected with the force transmission plate 93; the number of the lower pulleys 96 is two, the two lower pulleys 96 are arranged corresponding to the two upper pulleys 91 and are positioned below the sides of the two upper pulleys 91, and the lower pulleys 96 are in rotating contact with the upper pulleys 91; the two lower pulleys 96 are rotatably connected to the lower rotating shaft 95; the fixed plate 97 is vertically arranged, the top end of the fixed plate is fixedly connected with the lower rotating shaft 95, and the bottom end of the fixed plate is suspended; one end of the clamping plate 98 is vertically and fixedly connected with one side of the fixing plate 97 close to the upper rotating shaft 92, and the other end is clamped in the clamping groove 300; the ejection assembly 99 is disposed on a side of the fixing plate 97 away from the clamping plate 98; the ejection assembly 99 includes a guide bar 990 and a pressure spring 991; a guide channel along the axial direction of the clamping plate 98 is formed in one end of the clamping plate 98 fixedly connected with the fixed plate 97, one end of a guide rod 990 is vertically and fixedly connected to the inner wall of the box body 90, and the other end of the guide rod 990 corresponds to the guide channel and penetrates through the fixed plate 97 to be arranged in the guide channel in a penetrating manner; the guide rod 990 is sleeved with the pressure spring 991, one end of the pressure spring 991 is fixedly connected with the inner wall of the box body, and the other end of the pressure spring 991 is fixedly connected with the fixing plate 97. The longest length of the compression spring 991 is shorter than the distance from the upper rotating shaft 92 to the box body. When the button 94 is not pressed down, a gap exists between the button 94 and the upper cover, the pressure spring 991 is in a natural state, and the length of the pressure spring 991 is smaller than the distance from the upper rotating shaft 92 to the inner wall of the box body on the side of the pressure spring 991; when the button 94 is pressed and brought into contact with the upper cover, the compression spring 991 is compressed by a length equal to the distance by which the catch lever 98 is moved out of the catch groove 300.

The implementation principle of the embodiment is as follows: placing a rubber gasket 35 in a groove of the upper flange plate 30, and welding a high-pressure guide cylinder 4, a low-pressure guide cylinder 5 and a low-pressure guide cylinder protective cap 50 on the cover plate 8 correspondingly to the high-pressure guide port and the low-pressure guide port respectively; installing a perspective piece 81 on the cover plate 8, welding two holding pieces 82, and placing the clamping device 9 into the fixing groove 80; then, the button 94 is pressed to the bottom, the holding part 82 is held, the clamping plate 98 is aligned with the clamping groove 300, the cover plate 8 is placed on the rubber gasket 35, and the installation operation can be completed by loosening the button; when it is desired to remove cover 8, cover 8 can be removed by pressing button 94, grasping grip member 82 and lifting it upwardly.

The cover plate 8, the clamping groove 300 and the clamping device 9 are arranged, so that the mounting and dismounting process of the flowmeter can be simple and easy; the rubber gasket 35 can effectively ensure the sealing property between the cover plate 8 and the upper flange plate 30; the gripping member 82 facilitates the operator to move the cover plate 8; the perspective piece 81 can be used for an operator to observe the condition in the pipeline 1, so that the operator can conveniently judge whether the flowmeter needs to be dismantled and cleaned. When the flowmeter needs to be cleaned, only the cover plate 8 needs to be detached; when the pipeline 1 needs to be cleaned, the upper flange 30 and the cover plate 8 can be detached together; aiming at the two conditions, different operation modes are adopted, and further the working efficiency of operators is improved.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. A saddle insertion type taper pipe flowmeter comprises an extension cylinder (2), a low-pressure guiding pipe (6) and a cone (7), wherein a circulation port is formed in a pipeline (1), and the bottom end of the extension cylinder (2) is fixedly connected with the circulation port correspondingly; one end of the low-pressure guide pipe (6) is arranged into a 90-degree bent pipe; the cone (7) is coaxial with the pipeline (1), the cone (7) comprises a front cone and a rear cone, one end of the front cone is a small head end, and the other end of the front cone is a large head end; one end of the rear cone is equal to the outer diameter of the large head end of the front cone and is correspondingly fixedly connected with the large head end of the front cone, and the section of the other end of the rear cone is smaller than that of the fixedly connected end; the slope length of the front cone is longer than that of the rear cone, and the slope of the front cone is smaller than that of the rear cone; the small end of the front cone is fixedly connected with a 90-degree bent pipe of the low-pressure guiding pipe (6) correspondingly; a water flowing channel penetrating through the cone (7) is formed in the cone (7) along the axis direction of the cone (7); the method is characterized in that: a flange disc group (3) is arranged at the upper part of the extension cylinder (2), and the flange disc group (3) comprises an upper flange disc (30), a lower flange disc (31) and a rubber gasket (32); the lower flange plate (31) is provided with an opening matched with the extension cylinder (2) and is fixedly connected to the top end of the extension cylinder (2); the rubber gasket (32) is arranged on the upper part of the lower flange plate (31); the upper flange plate (30) is arranged at the upper part of the rubber gasket (32); a screw rod (33) and a nut (34) are matched among the upper flange plate (30), the rubber gasket (32) and the lower flange plate (31); the upper surface of the upper flange plate (30) is provided with a high-pressure leading port and a low-pressure leading port, and the high-pressure leading port and the low-pressure leading port penetrate through the upper flange plate (30); the low-pressure guiding pipe (6) is vertically and fixedly connected to the lower surface of the upper flange plate (30) corresponding to the low-pressure guiding opening.

2. A saddle-inserted cone flowmeter according to claim 1, wherein: the high-pressure leading port and the low-pressure leading port are respectively matched with a high-pressure leading cylinder (4) and a low-pressure leading cylinder (5), the high-pressure leading cylinder (4) is provided with external threads, the top end of the high-pressure leading cylinder is matched with a high-pressure leading cylinder protective cap (40), and the bottom end of the high-pressure leading cylinder protective cap is vertically and fixedly connected to the upper surface of the upper flange plate (30) corresponding to the high-pressure leading port; the low-pressure leading cylinder (5) is provided with external threads, the top end of the low-pressure leading cylinder is matched with a low-pressure leading cylinder protective cap (50), and the bottom end of the low-pressure leading cylinder protective cap corresponds to the low-pressure leading port and is vertically and fixedly connected to the upper surface of the upper flange plate (30).

3. A saddle-inserted cone flowmeter according to claim 2, wherein: a groove is formed in the upper surface of the upper flange plate (30), the groove penetrates through the upper flange plate (30), the upper opening of the groove is larger than the lower opening, a clamping groove (300) is formed in the inner wall of the groove, a rubber gasket (35) matched with the groove is arranged in the groove, and a cover plate (8) matched with the groove is arranged on the rubber gasket (35); the high-pressure guiding port and the low-pressure guiding port are respectively formed in the upper surface of the cover plate (8), the high-pressure guiding cylinder (4) and the low-pressure guiding cylinder (5) are respectively and vertically and fixedly connected to the upper surface of the cover plate (8) corresponding to the high-pressure guiding port and the low-pressure guiding port, and the low-pressure guiding pipe (6) is vertically and fixedly connected to the lower surface of the cover plate (8) corresponding to the low-pressure guiding port; fixed slot (80) have been seted up on apron (8), fixed slot (80) internal fixation has latch device (9) of adaptation with it, the output of latch device (9) with joint groove (300) adaptation and joint.

4. A saddle-inserted cone flowmeter according to claim 3, wherein: the clamping device (9) comprises a box body (90), an upper pulley (91), an upper rotating shaft (92), a force transmission plate (93), a button (94), a lower rotating shaft (95), a lower pulley (96), a fixing plate (97), a clamping plate (98) and an ejection assembly (99); the box body (90) comprises an upper cover and a box body, and the upper cover is matched and fixedly connected with the box body; the two upper pulleys (91) are parallel to each other, and the two upper pulleys (91) are arranged above the interior of the box body (90); the two upper pulleys (91) are rotationally connected to the upper rotating shaft (92); the force transmission plate (93) is vertically arranged, the bottom end of the force transmission plate is vertically and fixedly connected with the upper rotating shaft (92), and the top end of the force transmission plate penetrates out of the upper cover; the button (94) is vertically and fixedly connected to the top end of the force transmission plate (93); the number of the lower pulleys (96) is two, and the two lower pulleys (96) are correspondingly arranged below the two upper pulleys (91) and are in rotating contact with the upper pulleys (91); the two lower pulleys (96) are rotationally connected to the lower rotating shaft (95); the fixed plate (97) is vertically arranged, the top end of the fixed plate (97) is fixedly connected with the lower rotating shaft (95), and the bottom end of the fixed plate is suspended; one end of the clamping plate (98) is vertically and fixedly connected with one side, close to the upper rotating shaft (92), of the fixing plate (97), and the other end of the clamping plate is inserted into the clamping groove (300); the ejection assembly (99) is arranged on one side, away from the clamping plate (98), of the fixing plate (97) and fixedly connected with the box body, and the maximum length of the ejection assembly (99) is smaller than the distance from the upper rotating shaft (92) to the inner wall of the box body on the side of the ejection assembly (99).

5. The saddle-inserted cone flow meter according to claim 4, wherein: the ejection assembly (99) comprises a guide rod (990) and a pressure spring (991); one end of the clamping plate (98) fixedly connected with the fixing plate (97) is provided with a guide channel along the axial direction of the clamping plate (98), one end of the guide rod (990) is vertically and fixedly connected to the inner wall of the box body, and the other end of the guide rod penetrates through the guide channel; the pressure spring (991) is sleeved on the guide rod (990), one end of the pressure spring (991) is fixedly connected with the box body, and the other end of the pressure spring (991) is fixedly connected with the fixing plate (97); when the button (94) is not pressed down, a gap exists between the button (94) and the upper cover, the pressure spring (991) is in a natural state, and the length of the pressure spring (991) is smaller than the distance from the upper rotating shaft (92) to the inner wall of the box body on the side of the pressure spring (991); when the button (94) is pressed and contacts the upper cover, the compression length of the compression spring (991) is equal to the distance of the clamping plate (98) moving out of the clamping groove (300).

6. A saddle-inserted cone flowmeter according to claim 3, wherein: the cover plate (8) is provided with a perspective piece (81) for observing the interior of the pipeline (1).

7. A saddle-inserted cone flowmeter according to claim 6, wherein: the perspective piece (81) is a toughened glass plate.

8. A saddle-inserted cone flowmeter according to claim 3, wherein: the cover plate (8) is provided with a holding piece (82) used for moving the cover plate (8).

9. A saddle-inserted cone flowmeter according to claim 8, wherein: the holding piece (82) is an open steel ring.