Glass rotameter with closure structure

Abstract

The utility model relates to the technical field of glass rotameters, in particular to a glass rotameter with a cut-off structure, which comprises a double-end fixing screw, fixing nuts are movably mounted on the upper side and the lower side of the double-end fixing screw, fixing mechanisms are arranged on the upper side and the lower side of the double-end fixing screw, and each fixing mechanism comprises a fixing cylinder. A first inner sleeve is fixedly installed in the outer end of the fixing cylinder, a metering mechanism is arranged in the inner end of the fixing cylinder, first fixing plates are fixedly installed at the upper end and the lower end of the fixing cylinder, first fixing holes are formed in the first fixing plates, and double-end fixing screws are movably installed in the first fixing holes. According to the utility model, the whole closure structure can be quickly assembled and disassembled through the assembly screws and the assembly nuts, the closure structure can be quickly replaced when being damaged, the maintenance time is shortened, and meanwhile, the maintenance cost is reduced due to single-structure maintenance and replacement.

Description

Technical Field

[0001] The utility model relates to the technical field of glass rotor flowmeters, in particular to a glass rotor flowmeter with a shut-off structure. Background Art

[0002] Glass rotor flowmeter is a commonly used flow measuring instrument, mainly composed of a glass tube, a rotor, a dial, etc. It determines the flow rate of the medium by measuring the position of the rotor in the glass tube. Glass rotor flowmeter has the advantages of simple structure, easy use, and low price. It is suitable for measuring small flow rates of gas or liquid.

[0003] As disclosed in the authorization announcement number CN213090864U, a glass rotor flowmeter with a gas purification function is disclosed, including a glass rotor flowmeter body, an air outlet is provided on the upper right side of the glass rotor flowmeter body, and an air inlet is provided on the lower right side of the glass rotor flowmeter body, and the air inlet is connected to a purification box. By removing the limit bolt, the plug can be moved from the box body by pulling the top block, and then the filter screen and the activated carbon adsorption layer can be pulled out, so as to facilitate the replacement of the activated carbon adsorption layer. By removing the plug in the fixed pipe, the filter screen can be cleaned conveniently through the brush strip on the plug, thereby ensuring the use effect of the filter screen and the activated carbon adsorption layer. The sealing cover is opened, and water is sent into the spray head through the spray pipe through the external water source, and the interior of the box body can be sprayed, so as to facilitate the flushing of dust blocked by the filter screen and the activated carbon adsorption layer.

[0004] However, the existing glass rotor flowmeter with a cut-off structure has an integrated structure with the flowmeter body. Therefore, when the cut-off structure is damaged, it cannot be quickly disassembled and assembled, resulting in the need to replace the entire flowmeter when damaged, resulting in increased maintenance and use costs. Utility Model Content

[0005] The purpose of the utility model is to provide a glass rotor flowmeter with a cut-off structure to solve the problems raised in the above background technology.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A glass rotor flowmeter with a shut-off structure comprises a double-headed fixed screw, fixing nuts are movably installed on the upper and lower sides of the double-headed fixed screw, fixing mechanisms are provided on the upper and lower sides of the double-headed fixed screw, the fixing mechanism comprises a fixed cylinder, a first inner sleeve is fixedly installed inside the outer end of the fixed cylinder, a metering mechanism is provided inside the inner end of the fixed cylinder, first fixing plates are fixedly installed at the upper and lower ends of the fixed cylinder, a first fixing hole is opened on the first fixing plate, a double-headed fixed screw is movably installed in the first fixing hole, and a shut-off mechanism is provided at the bottom end of the first fixing plate.

[0008] Preferably, the metering mechanism includes a glass cylinder, which is fixedly mounted inside the inner end of the fixed cylinder, a scale line is fixedly mounted on the outer side of the glass cylinder, and a double-headed connecting screw passes through the interior of the glass cylinder.

[0009] Preferably, both ends of the double-headed connecting screw are fixedly mounted inside the inner end of the fixed cylinder, a limit block is movably mounted on the upper side of the double-headed connecting screw, and a float is fixedly and movably mounted on the outer side of the double-headed connecting screw.

[0010] Preferably, the intercepting mechanism includes an intercepting tube, and second fixing plates are fixedly mounted on the upper and lower ends of the intercepting tube. The second fixing plate is fixedly mounted on the bottom end of the first fixing plate, and a second fixing hole is formed on the second fixing plate.

[0011] Preferably, an assembly screw is fixedly installed at the point where the second fixing hole and the first fixing hole pass through, an assembly nut is movably installed on the assembly screw, and a second inner sleeve is fixedly installed inside the bottom end of the intercepting tube.

[0012] Preferably, an outer sleeve is fixedly installed in the middle of the top of the intercepting tube, a first inner sleeve is fixedly installed inside the outer sleeve, a clamping pad is fixedly installed outside the outer sleeve, and the clamping pad is fixedly installed inside the outer end of the fixed tube.

[0013] Preferably, an adjusting block is fixedly mounted on the outside of the intercepting cylinder, an adjusting screw is movably mounted in the adjusting block, a piston is movably mounted at the front end of the adjusting screw, and the piston is movably mounted inside the intercepting cylinder.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. This glass rotor flowmeter with a cut-off structure allows for quick assembly and disassembly of the entire cut-off structure through assembly screws and assembly nuts. This structure can be quickly replaced when the cut-off structure is damaged, reducing maintenance time. At the same time, single-structure maintenance and replacement reduces maintenance costs.

[0016] 2. The glass rotor flowmeter with a shut-off structure can be quickly assembled and disassembled as a whole through the shut-off structure, so that users can choose the usage of the flowmeter according to their needs, making it more practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a structural diagram of the fixing mechanism of the utility model;

[0019] Figure 3 It is a structural diagram of the measuring mechanism of the utility model;

[0020] Figure 4 This is a structural diagram of the intercepting mechanism of the utility model;

[0021] Figure 5 It is a schematic internal plan view of the intercepting mechanism of the utility model.

[0022] In the figure: 101, double-headed fixing screw; 102, fixing nut; 103, fixing mechanism; 104, fixing cylinder; 105, first inner sleeve; 106, metering mechanism; 201, first fixing plate; 202, first fixing hole; 204, shut-off mechanism; 205, glass cylinder; 206, scale line; 301, double-headed connecting screw; 302, limit block; 303, float; 304, shut-off cylinder; 305, second fixing plate; 306, second fixing hole; 401, assembly screw; 402, assembly nut; 403, second inner sleeve; 404, outer sleeve; 405, clamping gasket; 406, adjusting block; 501, adjusting screw; 502, piston. DETAILED DESCRIPTION

[0023] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0024] See also Figure 1-Figure 4 As shown, the utility model provides a technical solution:

[0025] A glass rotor flowmeter with a shut-off structure includes a double-headed fixed screw 101, with fixing nuts 102 movably installed on the upper and lower sides of the double-headed fixed screw 101, and fixing mechanisms 103 are provided on the upper and lower sides of the double-headed fixed screw 101. The fixing mechanism 103 includes a fixed cylinder 104, a first inner sleeve 105 is fixedly installed inside the outer end of the fixed cylinder 104, and a metering mechanism 106 is provided inside the inner end of the fixed cylinder 104. First fixed plates 201 are fixedly installed at the upper and lower ends of the fixed cylinder 104, a first fixing hole 202 is opened on the first fixing plate 201, the double-headed fixed screw 101 is movably installed in the first fixing hole 202, and a shut-off mechanism 204 is provided at the bottom end of the first fixing plate 201.

[0026] Through the scheme, the first fixing plate can be used to drive the fixing tube for assembly through the first fixing hole, and the double-headed fixing screw can pass through the first fixing hole and be connected with the fixing nut so that the fixing tube can be connected in series to fix the glass tube, and the flow meter and the liquid flow pipeline or device can be installed and engaged through the first inner sleeve.

[0027] In this embodiment, preferably, the metering mechanism 106 includes a glass cylinder 205, which is fixedly installed inside the inner end of the fixed cylinder 104, and a scale line 206 is fixedly installed on the outside of the glass cylinder 205. A double-headed connecting screw 301 passes through the inside of the glass cylinder 205.

[0028] Through the solution, the liquid can flow through the glass tube, and the transparency of the glass tube allows for easy observation, and the flow value can be detected through the scale line.

[0029] In this embodiment, preferably, both ends of the double-headed connecting screw 301 are fixedly installed inside the inner end of the fixed cylinder 104, a limit block 302 is movably installed on the upper side of the double-headed connecting screw 301, and a float 303 is fixedly and movably installed on the outer side of the double-headed connecting screw 301.

[0030] Through the solution, the float can be fixed by connecting the double-headed connecting screw to the fixed cylinder. The flow value can be obtained by raising and lowering the float on the outside of the double-headed connecting screw to match the scale line. The float can be limited by the limit block to avoid floating too high.

[0031] In this embodiment, preferably, the intercepting mechanism 204 includes an intercepting tube 304 , and second fixing plates 305 are fixedly installed at the upper and lower ends of the intercepting tube 304 . The second fixing plate 305 is fixedly installed at the bottom end of the first fixing plate 201 , and a second fixing hole 306 is opened on the second fixing plate 305 .

[0032] According to the solution, the second fixing plate can drive the intercepting cylinder to complete the assembly through the second fixing hole, and the intercepting cylinder and the fixing cylinder can be assembled by connecting the second fixing plate with the first fixing plate.

[0033] In this embodiment, preferably, an assembly screw 401 is fixedly installed at the connection between the second fixing hole 306 and the first fixing hole 202 , an assembly nut 402 is movably installed on the assembly screw 401 , and a second inner sleeve 403 is fixedly installed inside the bottom end of the intercepting tube 304 .

[0034] Through the solution, the assembly screw passes through the first fixing hole and the second fixing hole and is connected to the assembly nut, so that the intercepting cylinder and the fixing cylinder are more stable after assembly, and the connection of the liquid flow to the pipeline can be completed through the second inner sleeve.

[0035] In this embodiment, preferably, an outer sleeve 404 is fixedly installed in the middle of the top of the intercepting tube 304, a first inner sleeve 105 is fixedly installed inside the outer sleeve 404, a clamping pad 405 is fixedly installed on the outside of the outer sleeve 404, and the clamping pad 405 is fixedly installed inside the outer end of the fixed tube 104.

[0036] According to the solution, the outer sleeve is connected to the first inner sleeve and the matching card gasket is installed inside the outer end of the fixed cylinder, so that after the intercepting cylinder and the fixed cylinder are assembled, the interior can remain sealed when liquid flows.

[0037] In this embodiment, preferably, an adjustment block 406 is fixedly installed on the outside of the intercepting cylinder 304, an adjustment screw 501 is movably installed in the adjustment block 406, a piston 502 is movably installed at the front end of the adjustment screw 501, and the piston 502 is movably installed inside the intercepting cylinder 304.

[0038] Through the scheme, by turning the adjusting screw in the adjusting block, the adjusting screw can drive the piston to move inside the intercepting cylinder. When the piston moves, the size of the internal channel of the intercepting cylinder can be controlled, thereby achieving the purpose of flow regulation and interception.

[0039] When using a glass rotor flowmeter with a cut-off structure of this embodiment, the user passes the double-headed connecting screw 301 through the glass tube 205 and connects it to the inner end of the fixed tube 104 and screws the limit block 302 to fix it in position. Then, the double-headed fixing screw 101 passes through the first fixing hole 202 and connects it with the fixing nut 102 and tightens it to complete the assembly of the glass tube 205 and the fixed tube 104. At this time, the user connects the outer sleeve 404 with the first inner sleeve 105 so that the clamping pad 405 is stuck in the bottom end of the fixed tube 104. Then, the user passes through the first fixing hole 202 and the second fixing hole 306 through the assembly screw 401 to connect it with the fixing nut 102 and tighten it to complete the assembly of the cut-off tube 304 and the fixed tube 104. After assembly, the user connects the second inner sleeve 403 at the bottom end of the cut-off tube 304 to the pumping device, and connects the first inner sleeve 105 at the top of the fixed tube 104 to the receiving device. When the pumping device pumps liquid, the liquid passes through the second inner sleeve 403 The sleeve 403 enters the intercepting cylinder 304, which has a built-in channel. The user rotates the adjusting screw 501 in the adjusting block 406. The adjusting screw 501 rotates, causing the piston 502 to be pushed and moved. When the piston 502 moves, the size of the channel changes. Therefore, the opening and closing of the channel in the intercepting cylinder 304, the liquid flow rate, and the liquid flow rate can be controlled. After passing through the intercepting cylinder 304, the liquid enters the glass cylinder 205 through the fixed cylinder 104. The kinetic energy of the liquid when flowing inside the glass cylinder 205 generates lift on the float 303, and the buoyancy of the liquid drives the float 303 to rise. When the sum of the lift and the buoyancy equals the weight of the float 303 itself, the float 303 is in balance. After the balanced float 303 stabilizes at a certain height, the corresponding scale line 206 on the glass cylinder 205 indicates the flow value of the fluid. Finally, the liquid passing through the glass cylinder 205 enters the receiving device through the first inner sleeve 105.

[0040] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A glass rotor flowmeter with a shut-off structure, characterized in that: The invention comprises a double-headed fixed screw (101), wherein fixing nuts (102) are movably installed on the upper and lower sides of the double-headed fixed screw (101), and fixing mechanisms (103) are provided on the upper and lower sides of the double-headed fixed screw (101), and the fixing mechanism (103) comprises a fixing cylinder (104), wherein a first inner sleeve (105) is fixedly installed inside the outer end of the fixing cylinder (104), and a metering mechanism (106) is provided inside the inner end of the fixing cylinder (104), and a first fixing plate (201) is fixedly installed at the upper and lower ends of the fixing cylinder (104), wherein a first fixing hole (202) is provided on the first fixing plate (201), and the double-headed fixed screw (101) is movably installed in the first fixing hole (202), and a shut-off mechanism (204) is provided at the bottom end of the first fixing plate (201).

2. The glass rotor flowmeter with a shut-off structure according to claim 1, characterized in that: The metering mechanism (106) comprises a glass cylinder (205), wherein the glass cylinder (205) is fixedly mounted inside the inner end of the fixed cylinder (104), a scale line (206) is fixedly mounted on the outer side of the glass cylinder (205), and a double-headed connecting screw (301) passes through the interior of the glass cylinder (205).

3. The glass rotor flowmeter with a shut-off structure according to claim 2, characterized in that: Both ends of the double-headed connecting screw (301) are fixedly mounted inside the inner end of the fixed cylinder (104); a limit block (302) is movably mounted on the upper side of the double-headed connecting screw (301); and a float (303) is fixedly and movably mounted on the outer side of the double-headed connecting screw (301).

4. The glass rotor flowmeter with a shut-off structure according to claim 1, characterized in that: The intercepting mechanism (204) comprises an intercepting tube (304), wherein second fixing plates (305) are fixedly mounted at the upper and lower ends of the intercepting tube (304), and the second fixing plate (305) is fixedly mounted at the bottom end of the first fixing plate (201), and a second fixing hole (306) is provided on the second fixing plate (305).

5. The glass rotor flowmeter with a shut-off structure according to claim 4, characterized in that: An assembly screw (401) is fixedly installed at the point where the second fixing hole (306) and the first fixing hole (202) pass through, an assembly nut (402) is movably installed on the assembly screw (401), and a second inner sleeve (403) is fixedly installed inside the bottom end of the intercepting tube (304).

6. The glass rotor flowmeter with a shut-off structure according to claim 5, characterized in that: An outer sleeve (404) is fixedly installed in the middle of the top of the intercepting tube (304), a first inner sleeve (105) is fixedly installed inside the outer sleeve (404), a clamping pad (405) is fixedly installed on the outside of the outer sleeve (404), and the clamping pad (405) is fixedly installed inside the outer end of the fixed tube (104).

7. The glass rotor flowmeter with a shut-off structure according to claim 6, characterized in that: An adjusting block (406) is fixedly mounted on the outside of the intercepting cylinder (304), an adjusting screw (501) is movably mounted inside the adjusting block (406), a piston (502) is movably mounted at the front end of the adjusting screw (501), and the piston (502) is movably mounted inside the intercepting cylinder (304).

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