Nozzle flowmeter convenient to assemble and adjust and assembling and adjusting method thereof

Abstract

The invention discloses a nozzle flow meter convenient to assemble and adjust and an assembling and adjusting method thereof, and belongs to the technical field of flow meters, and the nozzle flow meter convenient to assemble and adjust comprises two connecting pipes, a pore plate assembly and a connecting mechanism. Annular grooves are formed in the opposite ends of the two connecting pipes. The pore plate assembly is located between the two connecting pipes. According to the connecting mechanism, the first fixing ring, the second fixing ring and the tensioning assembly are arranged, the distance between the two connecting pipes can be changed by adjusting the tensioning assembly, the pore plate assembly can be easily clamped between the two connecting pipes, the assembling efficiency is improved, and the operation difficulty is reduced; and the pore plate assembly is detachably connected with the connecting pipe, so that the pore plate assembly can be conveniently maintained, repaired or replaced in the later period.

Description

Technical Field

[0001] The invention belongs to the technical field of flow meters, and in particular relates to a nozzle flow meter which is convenient to assemble and adjust and an assembling and adjusting method thereof. Background Art

[0002] As a core tool in the field of flow measurement, nozzle flowmeter has a long history of development. With the continuous advancement of industrial automation, the performance and accuracy of nozzle flowmeters have been significantly improved, and they are widely used in many fields such as petroleum, chemical industry, and metallurgy. Traditional nozzle flowmeters are usually composed of nozzles, measuring tubes, pressure devices, and flow calculators. The fluid is throttled through the nozzle, and the flow rate is calculated based on the pressure difference before and after throttling.

[0003] However, although the traditional nozzle flowmeter is relatively mature in technology, there are still many challenges in assembly. Since the traditional nozzle flowmeter has many parts and the connection between the parts is relatively complicated, the assembly process is time-consuming, which reduces production efficiency and needs to be improved. Summary of the invention

[0004] The purpose of the present invention is to provide a nozzle flow meter that is easy to assemble and adjust and an assembly and adjustment method thereof, so as to solve the technical problems in the prior art that traditional nozzle flow meters have numerous components, the connections between the components are relatively complicated, the assembly process is time-consuming, and the production efficiency is reduced.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: A nozzle flow meter that is easy to assemble and adjust includes: two connecting pipes, each of which has an annular groove on its opposite end; an orifice plate assembly located between the two connecting pipes; a connecting mechanism used to connect the orifice plate assembly to the two connecting pipes, which includes: a first fixing ring, which is fixedly sleeved on the connecting pipe; a second fixing ring, which is fixedly sleeved on the connecting pipe away from the first fixing ring; a tensioning assembly, which is used to adjust the distance between the first fixing ring and the second fixing ring; and two groups of support assemblies, which are used to support the tensioning assembly.

[0006] Preferably, the nozzle flowmeter which is convenient for assembly and adjustment also includes: two flanges, respectively installed on the opposite sides of the two connecting pipes, the flanges are provided with a plurality of flange holes; two mounting pipes, respectively connected to the two connecting pipes; and a measuring assembly, which is detachably connected to the two mounting pipes.

[0007] Preferably, the orifice plate assembly includes: a fixed plate; two plug rings, respectively installed on the two side surfaces of the fixed plate and plugged into the annular groove; a plurality of threaded holes, equidistantly arranged on the fixed plate; a plurality of nozzles, respectively threadedly connected to the plurality of threaded holes, and a plurality of fixing strips are installed on the nozzles.

[0008] Preferably, the connecting mechanism further comprises: four mounting grooves, all of which are formed on the first fixing ring; and four through grooves, all of which are formed on the second fixing ring.

[0009] Preferably, the tensioning assembly includes: two first connecting rods, which are respectively hinged to the two mounting grooves located above; two second connecting rods, which are respectively hinged to the two mounting grooves located below; four threaded columns, which are respectively installed on the two first connecting rods and the two second connecting rods, and the threaded columns pass through the through grooves; four nuts, which are respectively threadedly connected to the four threaded columns, and two fixing plates are installed on the nuts.

[0010] Preferably, the support assembly includes: a fixed cylinder; an adjusting rod slidably connected to the fixed cylinder; a tightening bolt threadedly connected to the fixed cylinder, and a rod portion thereof in contact with the adjusting rod; and a support portion plugged into the lower end of the adjusting rod.

[0011] Preferably, the supporting part includes: a disc; a fixing block installed on the top surface of the disc; four first slots, respectively arranged on the four side surfaces of the fixing block; a second slot, arranged on the top surface of the fixing block, the first slot and the second slot both being plug-fitted with the adjusting rod; a slot, provided on the side surface of the disc, being plug-fitted with the fixing plate; an anti-slip groove, provided on the side surface of the disc; and a groove, provided on the bottom surface of the disc, being plug-fitted with the nozzle and a plurality of fixing strips.

[0012] Preferably, the tensioning assembly also includes: two strip grooves, respectively opened on the two second connecting rods, and the fixed tube is plugged into the strip grooves; two square grooves, respectively opened on the two second connecting rods, and plugged into the fixed tube; two sliding tubes, respectively slidably mounted on the two second connecting rods.

[0013] Preferably, the measuring component includes: a flow calculator, which has two pressure taking tubes, and the other ends of the two pressure taking tubes are respectively plugged into and matched with two mounting tubes; two limit plates, which are respectively fixedly mounted on the two pressure taking tubes; and two rotating cylinders, which are respectively mounted on the two pressure taking tubes and are respectively threadedly connected with the two mounting tubes.

[0014] The assembly and adjustment method of the nozzle flowmeter which is convenient for assembly and adjustment comprises the following steps: step 1, installing multiple nozzles in multiple threaded holes on a fixed plate; step 2, cleaning the annular grooves opened on the opposite ends of the two connecting pipes, and then placing the orifice plate assembly between the two connecting pipes; step 3, rotating the two first connecting rods and the two second connecting rods so that the four threaded columns respectively pass through the four through grooves, and then rotating the four nuts until the four nuts are all in contact with the second fixing ring, so that the two connecting pipes clamp and fix the orifice plate assembly; step 4, plugging and matching the two pressure-taking tubes on the flow meter with the two mounting tubes respectively, and then rotating the two rotating cylinders so that the rotating cylinders are threadedly connected with the mounting tubes; step 5, connecting the fixed cylinder of the support assembly with the second connecting rod to ensure that the fixed cylinder can provide stable support, and then adjusting the position of the adjusting rod in the fixed cylinder, adjusting the overall height of the support assembly, and fixing it with the tightening bolts after the adjustment is completed, so that the support assembly supports the second connecting rod.

[0015] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: 1. The connecting mechanism in the present invention is provided with a first fixing ring, a second fixing ring and a tensioning assembly, and the spacing between the two connecting pipes can be changed by adjusting the tensioning assembly, so that the orifice plate assembly can be easily clamped between the two connecting pipes, thereby improving the assembly efficiency and reducing the difficulty of operation; and through the detachable connection between the orifice plate assembly and the connecting pipe, it is also convenient to maintain, repair or replace the orifice plate assembly at a later time.

[0016] 2. The orifice plate assembly of the present invention can quickly install the nozzle on the fixed plate and also quickly remove the nozzle from the fixed plate by providing a fixed plate, two insert rings, multiple threaded holes and multiple nozzles. This design improves the replacement efficiency of the nozzle and reduces the maintenance cost.

[0017] 3. The support assembly in the present invention can adjust the overall height of the support assembly as needed by providing a fixing tube, an adjusting rod, a tightening bolt and a supporting portion, so that the support assembly provides stable support for the connecting pipe, thereby improving the stability of the orifice plate assembly and the measuring assembly, thereby reducing the measurement error caused by vibration or external force; When the nozzle needs to be installed on the fixed plate or removed from the fixed plate, the disc can be put on the nozzle, and then the adjusting rod can be plugged into the second slot, so that the nozzle can be turned effortlessly without the aid of other tools, which is convenient for installing the nozzle on the fixed plate or removing the nozzle from the fixed plate; In addition, when the nut needs to be rotated, the slot on the disc is plugged into the fixing plate on the nut, and the disc is rotated with the threaded rod as the center, and then the fixing plate is driven to rotate through the slot, so that the nut can be turned effortlessly without the help of tools, thereby improving the efficiency of nozzle flow meter assembly; In summary, the support assembly can not only improve the stability of the nozzle flowmeter, but also facilitate the installation or removal of the nozzle, and can save effort in rotating the nut, and has strong adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 A three-dimensional diagram of a nozzle flow meter that is convenient for assembly and adjustment in the present invention; Figure 2 For the present invention Figure 1 Exploded diagram of Figure 3 It is a schematic diagram of the internal structure of the connecting pipe in the present invention; Figure 4 It is a schematic diagram of the assembly structure of the strip groove, the square groove and the slide cylinder in the present invention; Figure 5 is a three-dimensional diagram of the orifice plate assembly of the present invention; Figure 6 is a three-dimensional diagram of the connecting mechanism in the present invention; Figure 7 It is a schematic diagram of the assembly structure of the orifice plate assembly, the adjustment rod and the support part in the present invention; Figure 8 is a three-dimensional diagram of the support portion of the present invention; Fig. 9 It is a schematic diagram of the assembly structure of the nut, the fixing plate and the supporting part in the present invention; Fig.10 It is a schematic diagram of the assembly structure of the second connecting rod, the strip groove, the fixing cylinder and the adjusting rod in the present invention; Reference numerals: 100, connecting pipe; 101, annular groove; 102, flange; 103, flange hole; 104, mounting pipe; 110, orifice plate assembly; 111, fixing plate; 112, insert ring; 113, threaded hole; 114, nozzle; 115, fixing bar; 120, measuring assembly; 121, flow calculator; 122, pressure taking pipe; 123, limit plate; 124, rotating drum; 200, connecting mechanism; 201, first fixing ring; 202, mounting groove; 203, second fixing ring; 204, through groove; 210, tensioning assembly; 211, first connecting rod; 212, second connecting rod; 213, threaded column; 214, nut; 215, fixing plate; 216, strip groove; 217, square groove; 218, slide cylinder; 220, supporting assembly; 221, fixing cylinder; 222, adjusting rod; 223, tightening bolt; 224, supporting part; 2241, disc; 2242, fixing block; 2243, first slot; 2244, second slot; 2245, card slot; 2246, anti-slip groove; 2247, groove. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] Example 1: Figure 1 and Figure 2 As shown, the nozzle flowmeter convenient for assembly and adjustment comprises two connecting pipes 100, an orifice assembly 110 and a connecting mechanism 200. An annular groove 101 is provided on opposite ends of the two connecting pipes 100; the orifice assembly 110 is located between the two connecting pipes 100.

[0022] The connecting mechanism 200 is used to connect the orifice plate assembly 110 with the two connecting pipes 100, and the connecting mechanism 200 includes a first fixing ring 201, a second fixing ring 203, a tensioning assembly 210 and two groups of supporting assemblies 220. The first fixing ring 201 is fixedly sleeved on the connecting pipe 100; the second fixing ring 203 is fixedly sleeved on the connecting pipe 100 away from the first fixing ring 201; the tensioning assembly 210 is used to adjust the distance between the first fixing ring 201 and the second fixing ring 203; and the two groups of supporting assemblies 220 are used to support the tensioning assembly 210.

[0023] Specifically, during assembly, the orifice plate assembly 110 is placed between two connecting tubes 100 , and the distance between the two connecting tubes 100 is adjusted by the connecting mechanism 200 , so that the two connecting tubes 100 clamp the orifice plate assembly 110 , thereby fastening the orifice plate assembly 110 to the two connecting tubes 100 .

[0024] When in use, the tensioning assembly 210 can be supported by two sets of support assemblies 220, thereby supporting the two connecting pipes 100, improving the stability of the connecting pipes 100, thereby improving the stability of the nozzle 114 flow meter and the measurement accuracy.

[0025] like Figure 2 and Figure 3 As shown, the nozzle flowmeter convenient for assembly and adjustment also includes two flanges 102, two mounting pipes 104 and a measuring assembly 120. The two flanges 102 are respectively mounted on opposite sides of the two connecting pipes 100, and the flanges 102 are provided with a plurality of flange holes 103; the two mounting pipes 104 are respectively connected to the two connecting pipes 100; and the measuring assembly 120 is detachably connected to the two mounting pipes 104.

[0026] like Figure 2 As shown, the measuring assembly 120 includes a flow calculator 121, two stopper plates 123 and two rotating drums 124. The flow calculator 121 has two pressure-taking tubes 122, and the other ends of the two pressure-taking tubes 122 are respectively plugged and matched with the two mounting tubes 104; the two stopper plates 123 are respectively fixedly sleeved on the two pressure-taking tubes 122; the two rotating drums 124 are respectively sleeved on the two pressure-taking tubes 122, and the two rotating drums 124 are respectively threadedly connected with the two mounting tubes 104, and the rotating drums 124 can move up and down along the pressure-taking tubes 122, and can also rotate relative to the pressure-taking tubes 122.

[0027] Specifically, after the orifice plate assembly 110 is connected to the two connecting pipes 100 , the two pressure-taking pipes 122 are plugged into the two mounting pipes 104 , and then the rotating drum 124 is rotated so that the rotating drum 124 and the mounting pipes 104 are threadedly connected, thereby preventing the pressure-taking pipes 122 from being separated from the mounting pipes 104 by themselves.

[0028] like Figure 5 and Figure 7 As shown, the orifice plate assembly 110 includes a fixed plate 111, two insert rings 112, a plurality of threaded holes 113 and a plurality of nozzles 114. The two insert rings 112 are respectively mounted on the two side surfaces of the fixed plate 111, and the two insert rings 112 are plugged and matched with the annular groove 101; the plurality of threaded holes 113 are equidistantly arranged on the fixed plate 111; the plurality of nozzles 114 are respectively threadedly connected with the plurality of threaded holes 113, and the nozzles 114 are mounted with a plurality of fixing strips 115.

[0029] Specifically, by providing the insert ring 112, it is convenient to connect the fixing plate 111 to the connecting pipe 100; by providing the threaded hole 113, it is convenient to detachably install the nozzle 114 on the fixing plate 111, so as to facilitate the replacement of the nozzle 114 at a later time.

[0030] like Figure 6 As shown, the connection mechanism 200 further includes four installation slots 202 and four through slots 204. The four installation slots 202 are all formed on the first fixing ring 201; and the four through slots 204 are all formed on the second fixing ring 203.

[0031] like Figure 4 and Figure 6 As shown, the tensioning assembly 210 includes two first connecting rods 211, two second connecting rods 212, four threaded columns 213 and four nuts 214. The two first connecting rods 211 are respectively hinged to the two mounting grooves 202 located at the top; the two second connecting rods 212 are respectively hinged to the two mounting grooves 202 located at the bottom; the four threaded columns 213 are respectively installed on the two first connecting rods 211 and the two second connecting rods 212, and the threaded columns 213 pass through the through grooves 204; the four nuts 214 are respectively threadedly connected to the four threaded columns 213, and two fixing plates 215 are installed on the nuts 214.

[0032] Specifically, when the fixing plate 111 needs to be connected to two connecting pipes 100 , the fixing plate 111 is placed between the two connecting pipes 100 so that the two insert rings 112 on the fixing plate 111 are aligned with the two annular grooves 101 .

[0033] Then, the two first connecting rods 211 and the two second connecting rods 212 are rotated in sequence to make the four threaded columns 213 pass through the four through slots 204 respectively, and then, the nuts 214 are rotated to move along the threaded columns 213, so that the four nuts 214 are all in contact with the second fixing ring 203, thereby shortening the distance between the first fixing ring 201 and the second fixing ring 203, so that the two connecting pipes 100 clamp and fix the fixing plate 111, and thus the fixing plate 111 is installed between the two connecting pipes 100.

[0034] like Figure 2 and Figure 6 As shown, the support assembly 220 includes a fixed cylinder 221, an adjusting rod 222, a tightening bolt 223 and a support portion 224. The fixed cylinder 221 is a cavity structure; the adjusting rod 222 is slidably connected to the fixed cylinder 221; the tightening bolt 223 is threadedly connected to the fixed cylinder 221, and the rod of the tightening bolt 223 is in contact with the adjusting rod 222; and the support portion 224 is plugged into the lower end of the adjusting rod 222.

[0035] Specifically, when it is necessary to support the second connecting rod 212, the support part 224 is first placed on the ground so that the support part 224 is located directly above the adjusting rod 222, and the upper end of the fixing tube 221 is in contact with the second connecting rod 212, and then the tightening bolt 223 is rotated counterclockwise to separate the rod of the tightening bolt 223 from the adjusting rod 222, and then the adjusting rod 222 is moved downward to connect the lower end of the adjusting rod 222 with the support part 224, and then the tightening bolt 223 is rotated clockwise to make the tightening bolt 223 abut against the adjusting rod 222, so that the adjusting rod 222 cannot move along the fixing tube 221, thereby fixing the overall height of the adjusting rod 222 and the fixing tube 221, and supporting the second connecting rod 212 through the fixing tube 221, the adjusting rod 222 and the support part 224, and then supporting the first fixing ring 201, the second fixing ring 203 and the two connecting pipes 100.

[0036] Working principle: During specific use and assembly, the fixing plate 111 is placed between the two connecting pipes 100 so that the two insert rings 112 on the fixing plate 111 are aligned with the two annular grooves 101 on the two connecting pipes 100 respectively.

[0037] Then rotate the two first connecting rods 211 and the two second connecting rods 212 in sequence, so that the four threaded columns 213 pass through the four through grooves 204 respectively, and then rotate the nuts 214 to move the nuts 214 along the threaded columns 213, so that the four nuts 214 are all in contact with the second fixing ring 203, thereby shortening the distance between the first fixing ring 201 and the second fixing ring 203, so that the two connecting pipes 100 clamp and fix the fixing plate 111, and thus the fixing plate 111 is installed between the two connecting pipes 100.

[0038] Then, the two pressure-taking tubes 122 are plugged into the two mounting tubes 104 , and the rotating drum 124 is rotated to thread the rotating drum 124 and the mounting tubes 104 , so that the pressure-taking tubes 122 cannot be separated from the mounting tubes 104 by themselves.

[0039] When in use, the two flanges 102 are connected to the upstream and downstream pipelines respectively by using a plurality of bolts, so that the fluid in the upstream pipeline flows to the downstream pipeline through the two connecting pipes 100, during which the flow rate can be measured by the flow calculator 121.

[0040] In order to improve the stability of the two connecting pipes 100 and the accuracy of the measuring assembly 120, the two supporting parts 224 are first placed on the ground so that the supporting parts 224 are located directly above the adjusting rod 222, and the upper end of the fixing tube 221 is in contact with the second connecting rod 212. Then, rotate the tightening bolt 223 counterclockwise to separate the rod of the tightening bolt 223 from the adjusting rod 222, and then move the adjusting rod 222 downward to connect the lower end of the adjusting rod 222 to the supporting portion 224, and then rotate the tightening bolt 223 clockwise to make the tightening bolt 223 abut against the adjusting rod 222, so that the adjusting rod 222 cannot move along the fixing tube 221, thereby fixing the overall height of the adjusting rod 222 and the fixing tube 221, and supporting the second connecting rod 212 through the fixing tube 221, the adjusting rod 222 and the supporting portion 224, and then supporting the first fixing ring 201, the second fixing ring 203 and the two connecting pipes 100, so as to improve the stability of the two connecting pipes 100 and the measuring assembly 120, and then improve the accuracy of the measurement result.

[0041] Example 2: Figure 7-Figure 9 As shown, when other parts are the same as those in Example 1, the difference between this embodiment and Example 1 is that: The supporting portion 224 includes a disc 2241 , a fixing block 2242 , four first slots 2243 , a second slot 2244 , a locking slot 2245 , an anti-slip slot 2246 and a groove 2247 .

[0042] The fixing block 2242 is installed on the top surface of the disc 2241; the four first slots 2243 are respectively arranged on the four side surfaces of the fixing block 2242; the second slot 2244 is arranged on the top surface of the fixing block 2242, and the first slot 2243 and the second slot 2244 are both plugged in and matched with the adjusting rod 222; the card slot 2245 is opened on the side of the disc 2241, and the card slot 2245 is plugged in and matched with the fixing plate 215; the anti-slip groove 2246 is arranged on the side of the disc 2241; the groove 2247 is opened on the bottom surface of the disc 2241, and the groove 2247 is plugged in and matched with the nozzle 114 and multiple fixing strips 115.

[0043] Specifically, when the nozzle 114 needs to be installed on the fixed plate 111, the groove 2247 on the disk 2241 is put on the nozzle 114 and the fixed bar 115, and then the rod portion of the adjusting rod 222 is inserted into the first slot 2243. Then, the fixing cylinder 221 and the adjusting rod 222 are rotated to drive the fixing block 2242 and the disk 2241 to rotate, and then drive the nozzle 114 to rotate, so as to facilitate and save effort to install the nozzle 114 on the fixed plate 111.

[0044] like Fig.10As shown, the tensioning assembly 210 further includes two strip grooves 216, two square grooves 217 and two slide cylinders 218. The two strip grooves 216 are respectively provided on the two second connecting rods 212, and the fixed cylinder 221 is plugged and matched with the strip grooves 216; the two square grooves 217 are respectively provided on the two second connecting rods 212, and the square grooves 217 are plugged and matched with the fixed cylinder 221; the two slide cylinders 218 are respectively slidably sleeved on the two second connecting rods 212.

[0045] Specifically, when the fixed cylinder 221 and the adjusting rod 222 need to be stored, the adjusting rod 222 is first retracted into the fixed cylinder 221, and then the fixed cylinder 221 is placed into the strip groove 216 of the second connecting rod 212, and then the slide cylinder 218 is moved so that the slide cylinder 218 supports the fixed cylinder 221, so that the fixed cylinder 221 cannot move out of the strip groove 216 by itself.

[0046] Working principle: When the nozzle 114 needs to be installed on the fixed plate 111, the groove 2247 on the disk 2241 is put on the nozzle 114 and the fixed bar 115, and then the rod part of the adjusting rod 222 is inserted into the first slot 2243. Then, the fixing cylinder 221 and the adjusting rod 222 are rotated, thereby driving the fixing block 2242 and the disk 2241 to rotate, and then driving the nozzle 114 to rotate, so that the nozzle 114 can be installed on the fixed plate 111 without the help of other tools.

[0047] When the nut 214 needs to be rotated, the slot 2245 on the disc 2241 is plugged into the fixing plate 215 on the nut 214, and the disc 2241 is rotated around the threaded rod, thereby driving the fixing plate 215 to rotate through the slot 2245, thereby saving effort in rotating the nut 214 without the aid of tools.

[0048] When it is necessary to support the second connecting rod 212, first place the support part 224 on the ground so that the support part 224 is located directly above the adjusting rod 222, and then adjust the overall height of the adjusting rod 222 and the fixing tube 221 by plugging the upper end of the fixing tube 221 into the square groove 217, so that the lower end of the adjusting rod 222 is plugged into the second slot 2244 on the fixing block 2242. After the height adjustment is completed, the tightening bolt 223 is used to fix the overall height of the adjusting rod 222 and the fixing tube 221, and the second connecting rod 212 is supported by the fixing tube 221, the adjusting rod 222 and the support part 224, thereby supporting the first fixing ring 201, the second fixing ring 203 and the two connecting pipes 100.

[0049] Example 3: Figure 1-Figure 10 As shown, the assembly and adjustment method of the nozzle flow meter that is convenient for assembly and adjustment comprises the following steps: Step 1: Install multiple nozzles 114 in multiple threaded holes 113 on the fixing plate 111; Step 2: Clean the annular grooves 101 on the opposite ends of the two connecting pipes 100 to ensure that there are no debris that may affect the plug-in connection, and then place the orifice plate assembly 110 between the two connecting pipes 100 to prepare for fixing; Step 3: Rotate the two first connecting rods 211 and the two second connecting rods 212 to allow the four threaded columns 213 to penetrate the four through slots 204 respectively, and then rotate the four nuts 214 until the four nuts 214 abut against the second fixing ring 203, so that the two connecting pipes 100 clamp and fix the orifice plate assembly 110; Step 4: plug and match the two pressure-taking tubes 122 on the flow calculator 121 with the two mounting tubes 104 respectively, and then rotate the two rotating drums 124 to make the rotating drums 124 and the mounting tubes 104 threadedly connected to ensure that the pressure-taking tubes 122 and the mounting tubes 104 are tightly connected; Step 5: Connect the fixed tube 221 of the support assembly 220 to the second connecting rod 212 to ensure that the fixed tube 221 can stably support, and then adjust the position of the adjusting rod 222 in the fixed tube 221 to adjust the overall height of the support assembly 220. After the adjustment is completed, use the tightening bolt 223 to fix it; Step 6. After installation is complete, test the nozzle 114 flow meter to ensure that it can work properly and accurately measure the flow.

[0050] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

[0051] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. 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 present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. The nozzle flow meter is easy to assemble and adjust, characterized in that: include: Two connecting pipes (100) each having an annular groove (101) formed on opposite ends thereof; An orifice plate assembly (110) is located between the two connecting pipes (100); A connecting mechanism (200), used for connecting the orifice plate assembly (110) to two connecting pipes (100), comprises: A first fixing ring (201) fixedly sleeved on the connecting pipe (100); A second fixing ring (203) fixedly sleeved on the connecting pipe (100) away from the first fixing ring (201); A tensioning assembly (210) used for adjusting the distance between the first fixing ring (201) and the second fixing ring (203); Two groups of support assemblies (220) are used to support the tensioning assembly (210).

2. The nozzle flow meter that is easy to assemble and adjust according to claim 1 is characterized in that: Also includes: Two flanges (102) are respectively mounted on opposite sides of the two connecting pipes (100), and the flanges (102) are provided with a plurality of flange holes (103); Two installation pipes (104) are respectively connected to the two connecting pipes (100); The measuring assembly (120) is detachably connected to the two mounting tubes (104).

3. The nozzle flow meter that is easy to assemble and adjust according to claim 1 is characterized in that: The orifice plate assembly (110) comprises: Fixed plate (111); Two insert rings (112) are respectively mounted on two side surfaces of the fixing plate (111) and are plugged into and matched with the annular groove (101); A plurality of threaded holes (113) are arranged at equal intervals on the fixing plate (111); A plurality of nozzles (114) are respectively threadedly connected to the plurality of threaded holes (113); and a plurality of fixing strips (115) are mounted on the nozzles (114).

4. The nozzle flow meter that is easy to assemble and adjust according to claim 3 is characterized in that: The connecting mechanism (200) further comprises: Four mounting grooves (202), all formed on the first fixing ring (201); Four through slots (204) are all formed on the second fixing ring (203).

5. The nozzle flow meter that is easy to assemble and adjust according to claim 4 is characterized in that: The tensioning assembly (210) comprises: Two first connecting rods (211) are respectively hinged to the two installation slots (202) located above; Two second connecting rods (212) are respectively hinged to the two mounting grooves (202) located below; Four threaded columns (213), respectively mounted on the two first connecting rods (211) and the two second connecting rods (212), the threaded columns (213) passing through the through slots (204); Four nuts (214) are respectively threadedly connected to the four threaded columns (213), and two fixing plates (215) are mounted on the nuts (214).

6. The nozzle flow meter that is easy to assemble and adjust according to claim 5, characterized in that: The support assembly (220) comprises: Fixed cylinder (221); An adjusting rod (222) slidably connected to the fixing cylinder (221); A tightening bolt (223) is threadedly connected to the fixing cylinder (221), and a rod portion thereof is in contact with the adjusting rod (222); The support portion (224) is plugged into the lower end of the adjusting rod (222).

7. The nozzle flow meter that is easy to assemble and adjust according to claim 6, characterized in that: The support portion (224) comprises: disc(2241); A fixing block (2242) is mounted on the top surface of the disc (2241); Four first slots (2243) are respectively arranged on four side surfaces of the fixing block (2242); A second slot (2244) is arranged on the top surface of the fixing block (2242), and both the first slot (2243) and the second slot (2244) are plug-fitted with the adjusting rod (222); A slot (2245) is provided on the side of the disc (2241) and is plugged into and matched with the fixing plate (215); An anti-slip groove (2246) is arranged on the side of the disc (2241); The groove (2247) is provided on the bottom surface of the disc (2241) and is plug-fitted with the nozzle (114) and the plurality of fixing strips (115).

8. The nozzle flow meter that is easy to assemble and adjust according to claim 7, characterized in that: The tensioning assembly (210) further comprises: Two strip-shaped grooves (216) are respectively provided on the two second connecting rods (212), and the fixing tube (221) is plug-fitted into the strip-shaped grooves (216); Two square grooves (217) are respectively formed on the two second connecting rods (212) and are plugged into and matched with the fixing tube (221); The two slide cylinders (218) are respectively slidably mounted on the two second connecting rods (212).

9. The nozzle flow meter that is easy to assemble and adjust according to claim 2, characterized in that: The measuring component (120) comprises: A flow rate calculator (121) having two pressure-taking tubes (122), the other ends of the two pressure-taking tubes (122) being plugged into and matched with two mounting tubes (104) respectively; Two limit plates (123) are respectively fixedly sleeved on the two pressure taking pipes (122); The two rotating drums (124) are respectively sleeved on the two pressure-taking tubes (122) and are respectively threadedly connected to the two mounting tubes (104).

10. A method for assembling and adjusting a nozzle flowmeter that is convenient for assembly and adjustment, characterized in that: The following steps are involved: Step 1: installing a plurality of nozzles (114) in a plurality of threaded holes (113) on a fixing plate (111); Step 2: clean the annular grooves (101) opened on opposite ends of the two connecting pipes (100), and then place the orifice plate assembly (110) between the two connecting pipes (100); Step 3: rotate the two first connecting rods (211) and the two second connecting rods (212) so that the four threaded columns (213) respectively penetrate the four through slots (204), and then rotate the four nuts (214) until the four nuts (214) are in contact with the second fixing ring (203), so that the two connecting pipes (100) clamp and fix the orifice plate assembly (110); Step 4: plug and match the two pressure-taking tubes (122) on the flow calculator (121) with the two mounting tubes (104) respectively, and then rotate the two rotating cylinders (124) to make the rotating cylinders (124) and the mounting tubes (104) threadedly connected; Step 5: Connect the fixed cylinder (221) of the support assembly (220) to the second connecting rod (212) to ensure that the fixed cylinder (221) can provide stable support, then adjust the position of the adjustment rod (222) in the fixed cylinder (221) to adjust the overall height of the support assembly (220). After the adjustment is completed, use the tightening bolt (223) to fix it so that the support assembly (220) supports the second connecting rod (212).

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